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-rw-r--r--extensions/spellcheck/src/components.conf20
-rw-r--r--extensions/spellcheck/src/moz.build30
-rw-r--r--extensions/spellcheck/src/mozEnglishWordUtils.cpp102
-rw-r--r--extensions/spellcheck/src/mozEnglishWordUtils.h40
-rw-r--r--extensions/spellcheck/src/mozInlineSpellChecker.cpp2120
-rw-r--r--extensions/spellcheck/src/mozInlineSpellChecker.h338
-rw-r--r--extensions/spellcheck/src/mozInlineSpellWordUtil.cpp1174
-rw-r--r--extensions/spellcheck/src/mozInlineSpellWordUtil.h253
-rw-r--r--extensions/spellcheck/src/mozPersonalDictionary.cpp433
-rw-r--r--extensions/spellcheck/src/mozPersonalDictionary.h80
-rw-r--r--extensions/spellcheck/src/mozSpellChecker.cpp681
-rw-r--r--extensions/spellcheck/src/mozSpellChecker.h197
12 files changed, 5468 insertions, 0 deletions
diff --git a/extensions/spellcheck/src/components.conf b/extensions/spellcheck/src/components.conf
new file mode 100644
index 0000000000..7fc73c1a17
--- /dev/null
+++ b/extensions/spellcheck/src/components.conf
@@ -0,0 +1,20 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+Classes = [
+ {
+ 'cid': '{56c778e4-1bee-45f3-a689-886692a97fe7}',
+ 'contract_ids': ['@mozilla.org/spellchecker/engine;1'],
+ 'type': 'mozHunspell',
+ },
+ {
+ 'cid': '{7ef52eaf-b7e1-462b-87e2-5d1dbaca9048}',
+ 'contract_ids': ['@mozilla.org/spellchecker/personaldictionary;1'],
+ 'type': 'mozPersonalDictionary',
+ 'headers': ['/extensions/spellcheck/src/mozPersonalDictionary.h'],
+ 'init_method': 'Init',
+ },
+]
diff --git a/extensions/spellcheck/src/moz.build b/extensions/spellcheck/src/moz.build
new file mode 100644
index 0000000000..7ba7826a1e
--- /dev/null
+++ b/extensions/spellcheck/src/moz.build
@@ -0,0 +1,30 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+include("/ipc/chromium/chromium-config.mozbuild")
+UNIFIED_SOURCES += [
+ "mozEnglishWordUtils.cpp",
+ "mozInlineSpellChecker.cpp",
+ "mozInlineSpellWordUtil.cpp",
+ "mozPersonalDictionary.cpp",
+ "mozSpellChecker.cpp",
+]
+
+XPCOM_MANIFESTS += [
+ "components.conf",
+]
+
+FINAL_LIBRARY = "xul"
+
+LOCAL_INCLUDES += [
+ "../hunspell/glue",
+ "../hunspell/src",
+ "/dom/base",
+]
+EXPORTS.mozilla += [
+ "mozInlineSpellChecker.h",
+ "mozSpellChecker.h",
+]
diff --git a/extensions/spellcheck/src/mozEnglishWordUtils.cpp b/extensions/spellcheck/src/mozEnglishWordUtils.cpp
new file mode 100644
index 0000000000..f3ae8a0a73
--- /dev/null
+++ b/extensions/spellcheck/src/mozEnglishWordUtils.cpp
@@ -0,0 +1,102 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozEnglishWordUtils.h"
+#include "nsComponentManagerUtils.h"
+#include "nsReadableUtils.h"
+#include "nsUnicharUtils.h"
+#include "nsUnicodeProperties.h"
+#include "nsCRT.h"
+#include "mozilla/Likely.h"
+
+NS_IMPL_CYCLE_COLLECTION(mozEnglishWordUtils, mURLDetector)
+
+mozEnglishWordUtils::mozEnglishWordUtils() {
+ mURLDetector = do_CreateInstance(MOZ_TXTTOHTMLCONV_CONTRACTID);
+}
+
+mozEnglishWordUtils::~mozEnglishWordUtils() {}
+
+// This needs vast improvement
+
+// static
+bool mozEnglishWordUtils::ucIsAlpha(char16_t aChar) {
+ // XXX we have to fix callers to handle the full Unicode range
+ return nsUGenCategory::kLetter == mozilla::unicode::GetGenCategory(aChar);
+}
+
+bool mozEnglishWordUtils::FindNextWord(const nsAString& aWord, uint32_t offset,
+ int32_t* begin, int32_t* end) {
+ if (offset >= aWord.Length()) {
+ *begin = -1;
+ *end = -1;
+ return false;
+ }
+
+ const char16_t* word = aWord.BeginReading();
+ uint32_t length = aWord.Length();
+ const char16_t* p = word + offset;
+ const char16_t* endbuf = word + length;
+ const char16_t* startWord = p;
+
+ // XXX These loops should be modified to handle non-BMP characters.
+ // if previous character is a word character, need to advance out of the
+ // word
+ if (offset > 0 && ucIsAlpha(*(p - 1))) {
+ while (p < endbuf && ucIsAlpha(*p)) {
+ p++;
+ }
+ }
+ while ((p < endbuf) && (!ucIsAlpha(*p))) {
+ p++;
+ }
+ startWord = p;
+ while ((p < endbuf) && ((ucIsAlpha(*p)) || (*p == '\''))) {
+ p++;
+ }
+
+ // we could be trying to break down a url, we don't want to break a url into
+ // parts, instead we want to find out if it really is a url and if so, skip
+ // it, advancing startWord to a point after the url.
+
+ // before we spend more time looking to see if the word is a url, look for a
+ // url identifer and make sure that identifer isn't the last character in
+ // the word fragment.
+ if ((p < endbuf - 1) && (*p == ':' || *p == '@' || *p == '.')) {
+ // ok, we have a possible url...do more research to find out if we really
+ // have one and determine the length of the url so we can skip over it.
+
+ if (mURLDetector) {
+ int32_t startPos = -1;
+ int32_t endPos = -1;
+
+ mURLDetector->FindURLInPlaintext(startWord, endbuf - startWord,
+ p - startWord, &startPos, &endPos);
+
+ // ok, if we got a url, adjust the array bounds, skip the current url
+ // text and find the next word again
+ if (startPos != -1 && endPos != -1) {
+ startWord = p + endPos + 1; // skip over the url
+
+ // now recursively call FindNextWord to search for the next word now
+ // that we have skipped the url
+ return FindNextWord(aWord, startWord - word, begin, end);
+ }
+ }
+ }
+
+ while ((p > startWord) && (*(p - 1) == '\'')) { // trim trailing apostrophes
+ p--;
+ }
+
+ if (startWord == endbuf) {
+ *begin = -1;
+ *end = -1;
+ return false;
+ }
+ *begin = startWord - word;
+ *end = p - word;
+ return true;
+}
diff --git a/extensions/spellcheck/src/mozEnglishWordUtils.h b/extensions/spellcheck/src/mozEnglishWordUtils.h
new file mode 100644
index 0000000000..64338fe2c6
--- /dev/null
+++ b/extensions/spellcheck/src/mozEnglishWordUtils.h
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozEnglishWordUtils_h__
+#define mozEnglishWordUtils_h__
+
+#include "nsCOMPtr.h"
+#include "nsString.h"
+
+#include "mozITXTToHTMLConv.h"
+#include "nsCycleCollectionParticipant.h"
+
+class mozEnglishWordUtils final {
+ public:
+ NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(mozEnglishWordUtils)
+ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(mozEnglishWordUtils)
+
+ mozEnglishWordUtils();
+
+ /**
+ * Given a unicode string and an offset, find the beginning and end of the
+ * next word. Return false, begin and end are -1 if there are no words
+ * remaining in the string. This should really be folded into the
+ * Line/WordBreaker.
+ */
+ bool FindNextWord(const nsAString& aWord, uint32_t offset, int32_t* begin,
+ int32_t* end);
+
+ protected:
+ virtual ~mozEnglishWordUtils();
+
+ static bool ucIsAlpha(char16_t aChar);
+
+ nsCOMPtr<mozITXTToHTMLConv>
+ mURLDetector; // used to detect urls so the spell checker can skip them.
+};
+
+#endif
diff --git a/extensions/spellcheck/src/mozInlineSpellChecker.cpp b/extensions/spellcheck/src/mozInlineSpellChecker.cpp
new file mode 100644
index 0000000000..d144fff317
--- /dev/null
+++ b/extensions/spellcheck/src/mozInlineSpellChecker.cpp
@@ -0,0 +1,2120 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=2 sts=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * This class is called by the editor to handle spellchecking after various
+ * events. The main entrypoint is SpellCheckAfterEditorChange, which is called
+ * when the text is changed.
+ *
+ * It is VERY IMPORTANT that we do NOT do any operations that might cause DOM
+ * notifications to be flushed when we are called from the editor. This is
+ * because the call might originate from a frame, and flushing the
+ * notifications might cause that frame to be deleted.
+ *
+ * We post an event and do all of the spellchecking in that event handler.
+ * We store all DOM pointers in ranges because they are kept up-to-date with
+ * DOM changes that may have happened while the event was on the queue.
+ *
+ * We also allow the spellcheck to be suspended and resumed later. This makes
+ * large pastes or initializations with a lot of text not hang the browser UI.
+ *
+ * An optimization is the mNeedsCheckAfterNavigation flag. This is set to
+ * true when we get any change, and false once there is no possibility
+ * something changed that we need to check on navigation. Navigation events
+ * tend to be a little tricky because we want to check the current word on
+ * exit if something has changed. If we navigate inside the word, we don't want
+ * to do anything. As a result, this flag is cleared in FinishNavigationEvent
+ * when we know that we are checking as a result of navigation.
+ */
+
+#include "mozInlineSpellChecker.h"
+
+#include "mozilla/Assertions.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/EditAction.h"
+#include "mozilla/EditorBase.h"
+#include "mozilla/EditorDOMPoint.h"
+#include "mozilla/EditorSpellCheck.h"
+#include "mozilla/EventListenerManager.h"
+#include "mozilla/HTMLEditor.h"
+#include "mozilla/IntegerRange.h"
+#include "mozilla/Logging.h"
+#include "mozilla/RangeUtils.h"
+#include "mozilla/Services.h"
+#include "mozilla/StaticPrefs_extensions.h"
+#include "mozilla/TextEvents.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/KeyboardEvent.h"
+#include "mozilla/dom/KeyboardEventBinding.h"
+#include "mozilla/dom/MouseEvent.h"
+#include "mozilla/dom/Selection.h"
+#include "mozInlineSpellWordUtil.h"
+#ifdef ACCESSIBILITY
+# include "nsAccessibilityService.h"
+#endif
+#include "nsCOMPtr.h"
+#include "nsCRT.h"
+#include "nsGenericHTMLElement.h"
+#include "nsRange.h"
+#include "nsIPrefBranch.h"
+#include "nsIPrefService.h"
+#include "nsIRunnable.h"
+#include "nsServiceManagerUtils.h"
+#include "nsString.h"
+#include "nsThreadUtils.h"
+#include "nsUnicharUtils.h"
+#include "nsIContent.h"
+#include "nsIContentInlines.h"
+#include "nsRange.h"
+#include "nsContentUtils.h"
+#include "nsIObserverService.h"
+#include "prtime.h"
+
+using mozilla::LogLevel;
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::ipc;
+
+// the number of milliseconds that we will take at once to do spellchecking
+#define INLINESPELL_CHECK_TIMEOUT 1
+
+// The number of words to check before we look at the time to see if
+// INLINESPELL_CHECK_TIMEOUT ms have elapsed. This prevents us from getting
+// stuck and not moving forward because the INLINESPELL_CHECK_TIMEOUT might
+// be too short to a low-end machine.
+#define INLINESPELL_MINIMUM_WORDS_BEFORE_TIMEOUT 5
+
+// The maximum number of words to check word via IPC.
+#define INLINESPELL_MAXIMUM_CHUNKED_WORDS_PER_TASK 25
+
+// These notifications are broadcast when spell check starts and ends. STARTED
+// must always be followed by ENDED.
+#define INLINESPELL_STARTED_TOPIC "inlineSpellChecker-spellCheck-started"
+#define INLINESPELL_ENDED_TOPIC "inlineSpellChecker-spellCheck-ended"
+
+static mozilla::LazyLogModule sInlineSpellCheckerLog("InlineSpellChecker");
+
+static const PRTime kMaxSpellCheckTimeInUsec =
+ INLINESPELL_CHECK_TIMEOUT * PR_USEC_PER_MSEC;
+
+mozInlineSpellStatus::mozInlineSpellStatus(
+ mozInlineSpellChecker* aSpellChecker, const Operation aOp,
+ RefPtr<nsRange>&& aRange, RefPtr<nsRange>&& aCreatedRange,
+ RefPtr<nsRange>&& aAnchorRange, const bool aForceNavigationWordCheck,
+ const int32_t aNewNavigationPositionOffset)
+ : mSpellChecker(aSpellChecker),
+ mRange(std::move(aRange)),
+ mOp(aOp),
+ mCreatedRange(std::move(aCreatedRange)),
+ mAnchorRange(std::move(aAnchorRange)),
+ mForceNavigationWordCheck(aForceNavigationWordCheck),
+ mNewNavigationPositionOffset(aNewNavigationPositionOffset) {}
+
+// mozInlineSpellStatus::CreateForEditorChange
+//
+// This is the most complicated case. For changes, we need to compute the
+// range of stuff that changed based on the old and new caret positions,
+// as well as use a range possibly provided by the editor (start and end,
+// which are usually nullptr) to get a range with the union of these.
+
+// static
+Result<UniquePtr<mozInlineSpellStatus>, nsresult>
+mozInlineSpellStatus::CreateForEditorChange(
+ mozInlineSpellChecker& aSpellChecker, const EditSubAction aEditSubAction,
+ nsINode* aAnchorNode, uint32_t aAnchorOffset, nsINode* aPreviousNode,
+ uint32_t aPreviousOffset, nsINode* aStartNode, uint32_t aStartOffset,
+ nsINode* aEndNode, uint32_t aEndOffset) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose, ("%s", __FUNCTION__));
+
+ if (NS_WARN_IF(!aAnchorNode) || NS_WARN_IF(!aPreviousNode)) {
+ return Err(NS_ERROR_FAILURE);
+ }
+
+ bool deleted = aEditSubAction == EditSubAction::eDeleteSelectedContent;
+ if (aEditSubAction == EditSubAction::eInsertTextComingFromIME) {
+ // IME may remove the previous node if it cancels composition when
+ // there is no text around the composition.
+ deleted = !aPreviousNode->IsInComposedDoc();
+ }
+
+ // save the anchor point as a range so we can find the current word later
+ RefPtr<nsRange> anchorRange = mozInlineSpellStatus::PositionToCollapsedRange(
+ aAnchorNode, aAnchorOffset);
+ if (NS_WARN_IF(!anchorRange)) {
+ return Err(NS_ERROR_FAILURE);
+ }
+
+ // Deletes are easy, the range is just the current anchor. We set the range
+ // to check to be empty, FinishInitOnEvent will fill in the range to be
+ // the current word.
+ RefPtr<nsRange> range = deleted ? nullptr : nsRange::Create(aPreviousNode);
+
+ // On insert save this range: DoSpellCheck optimizes things in this range.
+ // Otherwise, just leave this nullptr.
+ RefPtr<nsRange> createdRange =
+ (aEditSubAction == EditSubAction::eInsertText) ? range : nullptr;
+
+ UniquePtr<mozInlineSpellStatus> status{
+ /* The constructor is `private`, hence the explicit allocation. */
+ new mozInlineSpellStatus{&aSpellChecker,
+ deleted ? eOpChangeDelete : eOpChange,
+ std::move(range), std::move(createdRange),
+ std::move(anchorRange), false, 0}};
+ if (deleted) {
+ return status;
+ }
+
+ // ...we need to put the start and end in the correct order
+ ErrorResult errorResult;
+ int16_t cmpResult = status->mAnchorRange->ComparePoint(
+ *aPreviousNode, aPreviousOffset, errorResult);
+ if (NS_WARN_IF(errorResult.Failed())) {
+ return Err(errorResult.StealNSResult());
+ }
+ nsresult rv;
+ if (cmpResult < 0) {
+ // previous anchor node is before the current anchor
+ rv = status->mRange->SetStartAndEnd(aPreviousNode, aPreviousOffset,
+ aAnchorNode, aAnchorOffset);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return Err(rv);
+ }
+ } else {
+ // previous anchor node is after (or the same as) the current anchor
+ rv = status->mRange->SetStartAndEnd(aAnchorNode, aAnchorOffset,
+ aPreviousNode, aPreviousOffset);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return Err(rv);
+ }
+ }
+
+ // if we were given a range, we need to expand our range to encompass it
+ if (aStartNode && aEndNode) {
+ cmpResult =
+ status->mRange->ComparePoint(*aStartNode, aStartOffset, errorResult);
+ if (NS_WARN_IF(errorResult.Failed())) {
+ return Err(errorResult.StealNSResult());
+ }
+ if (cmpResult < 0) { // given range starts before
+ rv = status->mRange->SetStart(aStartNode, aStartOffset);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return Err(rv);
+ }
+ }
+
+ cmpResult =
+ status->mRange->ComparePoint(*aEndNode, aEndOffset, errorResult);
+ if (NS_WARN_IF(errorResult.Failed())) {
+ return Err(errorResult.StealNSResult());
+ }
+ if (cmpResult > 0) { // given range ends after
+ rv = status->mRange->SetEnd(aEndNode, aEndOffset);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return Err(rv);
+ }
+ }
+ }
+
+ return status;
+}
+
+// mozInlineSpellStatus::CreateForNavigation
+//
+// For navigation events, we just need to store the new and old positions.
+//
+// In some cases, we detect that we shouldn't check. If this event should
+// not be processed, *aContinue will be false.
+
+// static
+Result<UniquePtr<mozInlineSpellStatus>, nsresult>
+mozInlineSpellStatus::CreateForNavigation(
+ mozInlineSpellChecker& aSpellChecker, bool aForceCheck,
+ int32_t aNewPositionOffset, nsINode* aOldAnchorNode,
+ uint32_t aOldAnchorOffset, nsINode* aNewAnchorNode,
+ uint32_t aNewAnchorOffset, bool* aContinue) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose, ("%s", __FUNCTION__));
+
+ RefPtr<nsRange> anchorRange = mozInlineSpellStatus::PositionToCollapsedRange(
+ aNewAnchorNode, aNewAnchorOffset);
+ if (NS_WARN_IF(!anchorRange)) {
+ return Err(NS_ERROR_FAILURE);
+ }
+
+ UniquePtr<mozInlineSpellStatus> status{
+ /* The constructor is `private`, hence the explicit allocation. */
+ new mozInlineSpellStatus{&aSpellChecker, eOpNavigation, nullptr, nullptr,
+ std::move(anchorRange), aForceCheck,
+ aNewPositionOffset}};
+
+ // get the root node for checking
+ EditorBase* editorBase = status->mSpellChecker->mEditorBase;
+ if (NS_WARN_IF(!editorBase)) {
+ return Err(NS_ERROR_FAILURE);
+ }
+ Element* root = editorBase->GetRoot();
+ if (NS_WARN_IF(!root)) {
+ return Err(NS_ERROR_FAILURE);
+ }
+ // the anchor node might not be in the DOM anymore, check
+ if (root && aOldAnchorNode &&
+ !aOldAnchorNode->IsShadowIncludingInclusiveDescendantOf(root)) {
+ *aContinue = false;
+ return status;
+ }
+
+ status->mOldNavigationAnchorRange =
+ mozInlineSpellStatus::PositionToCollapsedRange(aOldAnchorNode,
+ aOldAnchorOffset);
+ if (NS_WARN_IF(!status->mOldNavigationAnchorRange)) {
+ return Err(NS_ERROR_FAILURE);
+ }
+
+ *aContinue = true;
+ return status;
+}
+
+// mozInlineSpellStatus::CreateForSelection
+//
+// It is easy for selections since we always re-check the spellcheck
+// selection.
+
+// static
+UniquePtr<mozInlineSpellStatus> mozInlineSpellStatus::CreateForSelection(
+ mozInlineSpellChecker& aSpellChecker) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose, ("%s", __FUNCTION__));
+
+ UniquePtr<mozInlineSpellStatus> status{
+ /* The constructor is `private`, hence the explicit allocation. */
+ new mozInlineSpellStatus{&aSpellChecker, eOpSelection, nullptr, nullptr,
+ nullptr, false, 0}};
+ return status;
+}
+
+// mozInlineSpellStatus::CreateForRange
+//
+// Called to cause the spellcheck of the given range. This will look like
+// a change operation over the given range.
+
+// static
+UniquePtr<mozInlineSpellStatus> mozInlineSpellStatus::CreateForRange(
+ mozInlineSpellChecker& aSpellChecker, nsRange* aRange) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Debug,
+ ("%s: range=%p", __FUNCTION__, aRange));
+
+ UniquePtr<mozInlineSpellStatus> status{
+ /* The constructor is `private`, hence the explicit allocation. */
+ new mozInlineSpellStatus{&aSpellChecker, eOpChange, nullptr, nullptr,
+ nullptr, false, 0}};
+
+ status->mRange = aRange;
+ return status;
+}
+
+// mozInlineSpellStatus::FinishInitOnEvent
+//
+// Called when the event is triggered to complete initialization that
+// might require the WordUtil. This calls to the operation-specific
+// initializer, and also sets the range to be the entire element if it
+// is nullptr.
+//
+// Watch out: the range might still be nullptr if there is nothing to do,
+// the caller will have to check for this.
+
+nsresult mozInlineSpellStatus::FinishInitOnEvent(
+ mozInlineSpellWordUtil& aWordUtil) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose,
+ ("%s: mRange=%p", __FUNCTION__, mRange.get()));
+
+ nsresult rv;
+ if (!mRange) {
+ rv = mSpellChecker->MakeSpellCheckRange(nullptr, 0, nullptr, 0,
+ getter_AddRefs(mRange));
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ switch (mOp) {
+ case eOpChange:
+ if (mAnchorRange) return FillNoCheckRangeFromAnchor(aWordUtil);
+ break;
+ case eOpChangeDelete:
+ if (mAnchorRange) {
+ rv = FillNoCheckRangeFromAnchor(aWordUtil);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+ // Delete events will have no range for the changed text (because it was
+ // deleted), and CreateForEditorChange will set it to nullptr. Here, we
+ // select the entire word to cause any underlining to be removed.
+ mRange = mNoCheckRange;
+ break;
+ case eOpNavigation:
+ return FinishNavigationEvent(aWordUtil);
+ case eOpSelection:
+ // this gets special handling in ResumeCheck
+ break;
+ case eOpResume:
+ // everything should be initialized already in this case
+ break;
+ default:
+ MOZ_ASSERT_UNREACHABLE("Bad operation");
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return NS_OK;
+}
+
+// mozInlineSpellStatus::FinishNavigationEvent
+//
+// This verifies that we need to check the word at the previous caret
+// position. Now that we have the word util, we can find the word belonging
+// to the previous caret position. If the new position is inside that word,
+// we don't want to do anything. In this case, we'll nullptr out mRange so
+// that the caller will know not to continue.
+//
+// Notice that we don't set mNoCheckRange. We check here whether the cursor
+// is in the word that needs checking, so it isn't necessary. Plus, the
+// spellchecker isn't guaranteed to only check the given word, and it could
+// remove the underline from the new word under the cursor.
+
+nsresult mozInlineSpellStatus::FinishNavigationEvent(
+ mozInlineSpellWordUtil& aWordUtil) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose, ("%s", __FUNCTION__));
+
+ RefPtr<EditorBase> editorBase = mSpellChecker->mEditorBase;
+ if (!editorBase) {
+ return NS_ERROR_FAILURE; // editor is gone
+ }
+
+ MOZ_ASSERT(mAnchorRange, "No anchor for navigation!");
+
+ if (!mOldNavigationAnchorRange->IsPositioned()) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ // get the DOM position of the old caret, the range should be collapsed
+ nsCOMPtr<nsINode> oldAnchorNode =
+ mOldNavigationAnchorRange->GetStartContainer();
+ uint32_t oldAnchorOffset = mOldNavigationAnchorRange->StartOffset();
+
+ // find the word on the old caret position, this is the one that we MAY need
+ // to check
+ RefPtr<nsRange> oldWord;
+ nsresult rv = aWordUtil.GetRangeForWord(oldAnchorNode,
+ static_cast<int32_t>(oldAnchorOffset),
+ getter_AddRefs(oldWord));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // aWordUtil.GetRangeForWord flushes pending notifications, check editor
+ // again.
+ if (!mSpellChecker->mEditorBase) {
+ return NS_ERROR_FAILURE; // editor is gone
+ }
+
+ // get the DOM position of the new caret, the range should be collapsed
+ nsCOMPtr<nsINode> newAnchorNode = mAnchorRange->GetStartContainer();
+ uint32_t newAnchorOffset = mAnchorRange->StartOffset();
+
+ // see if the new cursor position is in the word of the old cursor position
+ bool isInRange = false;
+ if (!mForceNavigationWordCheck) {
+ ErrorResult err;
+ isInRange = oldWord->IsPointInRange(
+ *newAnchorNode, newAnchorOffset + mNewNavigationPositionOffset, err);
+ if (NS_WARN_IF(err.Failed())) {
+ return err.StealNSResult();
+ }
+ }
+
+ if (isInRange) {
+ // caller should give up
+ mRange = nullptr;
+ } else {
+ // check the old word
+ mRange = oldWord;
+
+ // Once we've spellchecked the current word, we don't need to spellcheck
+ // for any more navigation events.
+ mSpellChecker->mNeedsCheckAfterNavigation = false;
+ }
+ return NS_OK;
+}
+
+// mozInlineSpellStatus::FillNoCheckRangeFromAnchor
+//
+// Given the mAnchorRange object, computes the range of the word it is on
+// (if any) and fills that range into mNoCheckRange. This is used for
+// change and navigation events to know which word we should skip spell
+// checking on
+
+nsresult mozInlineSpellStatus::FillNoCheckRangeFromAnchor(
+ mozInlineSpellWordUtil& aWordUtil) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose, ("%s", __FUNCTION__));
+
+ if (!mAnchorRange->IsPositioned()) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ nsCOMPtr<nsINode> anchorNode = mAnchorRange->GetStartContainer();
+ uint32_t anchorOffset = mAnchorRange->StartOffset();
+ return aWordUtil.GetRangeForWord(anchorNode,
+ static_cast<int32_t>(anchorOffset),
+ getter_AddRefs(mNoCheckRange));
+}
+
+// mozInlineSpellStatus::GetDocument
+//
+// Returns the Document object for the document for the
+// current spellchecker.
+
+Document* mozInlineSpellStatus::GetDocument() const {
+ if (!mSpellChecker->mEditorBase) {
+ return nullptr;
+ }
+
+ return mSpellChecker->mEditorBase->GetDocument();
+}
+
+// mozInlineSpellStatus::PositionToCollapsedRange
+//
+// Converts a given DOM position to a collapsed range covering that
+// position. We use ranges to store DOM positions becuase they stay
+// updated as the DOM is changed.
+
+// static
+already_AddRefed<nsRange> mozInlineSpellStatus::PositionToCollapsedRange(
+ nsINode* aNode, uint32_t aOffset) {
+ if (NS_WARN_IF(!aNode)) {
+ return nullptr;
+ }
+ IgnoredErrorResult ignoredError;
+ RefPtr<nsRange> range =
+ nsRange::Create(aNode, aOffset, aNode, aOffset, ignoredError);
+ NS_WARNING_ASSERTION(!ignoredError.Failed(),
+ "Creating collapsed range failed");
+ return range.forget();
+}
+
+// mozInlineSpellResume
+
+class mozInlineSpellResume : public Runnable {
+ public:
+ mozInlineSpellResume(UniquePtr<mozInlineSpellStatus>&& aStatus,
+ uint32_t aDisabledAsyncToken)
+ : Runnable("mozInlineSpellResume"),
+ mDisabledAsyncToken(aDisabledAsyncToken),
+ mStatus(std::move(aStatus)) {}
+
+ nsresult Post() {
+ nsCOMPtr<nsIRunnable> runnable(this);
+ return NS_DispatchToCurrentThreadQueue(runnable.forget(), 1000,
+ EventQueuePriority::Idle);
+ }
+
+ NS_IMETHOD Run() override {
+ // Discard the resumption if the spell checker was disabled after the
+ // resumption was scheduled.
+ if (mDisabledAsyncToken ==
+ mStatus->mSpellChecker->GetDisabledAsyncToken()) {
+ mStatus->mSpellChecker->ResumeCheck(std::move(mStatus));
+ }
+ return NS_OK;
+ }
+
+ private:
+ uint32_t mDisabledAsyncToken;
+ UniquePtr<mozInlineSpellStatus> mStatus;
+};
+
+// Used as the nsIEditorSpellCheck::InitSpellChecker callback.
+class InitEditorSpellCheckCallback final : public nsIEditorSpellCheckCallback {
+ ~InitEditorSpellCheckCallback() {}
+
+ public:
+ NS_DECL_ISUPPORTS
+
+ explicit InitEditorSpellCheckCallback(mozInlineSpellChecker* aSpellChecker)
+ : mSpellChecker(aSpellChecker) {}
+
+ NS_IMETHOD EditorSpellCheckDone() override {
+ return mSpellChecker ? mSpellChecker->EditorSpellCheckInited() : NS_OK;
+ }
+
+ void Cancel() { mSpellChecker = nullptr; }
+
+ private:
+ RefPtr<mozInlineSpellChecker> mSpellChecker;
+};
+NS_IMPL_ISUPPORTS(InitEditorSpellCheckCallback, nsIEditorSpellCheckCallback)
+
+NS_INTERFACE_MAP_BEGIN(mozInlineSpellChecker)
+ NS_INTERFACE_MAP_ENTRY(nsIInlineSpellChecker)
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+ NS_INTERFACE_MAP_ENTRY(nsIDOMEventListener)
+ NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMEventListener)
+ NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(mozInlineSpellChecker)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(mozInlineSpellChecker)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(mozInlineSpellChecker)
+
+NS_IMPL_CYCLE_COLLECTION_WEAK(mozInlineSpellChecker, mEditorBase, mSpellCheck,
+ mCurrentSelectionAnchorNode)
+
+mozInlineSpellChecker::SpellCheckingState
+ mozInlineSpellChecker::gCanEnableSpellChecking =
+ mozInlineSpellChecker::SpellCheck_Uninitialized;
+
+mozInlineSpellChecker::mozInlineSpellChecker()
+ : mNumWordsInSpellSelection(0),
+ mMaxNumWordsInSpellSelection(
+ StaticPrefs::extensions_spellcheck_inline_max_misspellings()),
+ mNumPendingSpellChecks(0),
+ mNumPendingUpdateCurrentDictionary(0),
+ mDisabledAsyncToken(0),
+ mNeedsCheckAfterNavigation(false),
+ mFullSpellCheckScheduled(false),
+ mIsListeningToEditSubActions(false) {}
+
+mozInlineSpellChecker::~mozInlineSpellChecker() {}
+
+EditorSpellCheck* mozInlineSpellChecker::GetEditorSpellCheck() {
+ return mSpellCheck ? mSpellCheck : mPendingSpellCheck;
+}
+
+NS_IMETHODIMP
+mozInlineSpellChecker::GetSpellChecker(nsIEditorSpellCheck** aSpellCheck) {
+ *aSpellCheck = mSpellCheck;
+ NS_IF_ADDREF(*aSpellCheck);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+mozInlineSpellChecker::Init(nsIEditor* aEditor) {
+ mEditorBase = aEditor ? aEditor->AsEditorBase() : nullptr;
+ return NS_OK;
+}
+
+// mozInlineSpellChecker::Cleanup
+//
+// Called by the editor when the editor is going away. This is important
+// because we remove listeners. We do NOT clean up anything else in this
+// function, because it can get called while DoSpellCheck is running!
+//
+// Getting the style information there can cause DOM notifications to be
+// flushed, which can cause editors to go away which will bring us here.
+// We can not do anything that will cause DoSpellCheck to freak out.
+
+MOZ_CAN_RUN_SCRIPT_BOUNDARY nsresult
+mozInlineSpellChecker::Cleanup(bool aDestroyingFrames) {
+ mNumWordsInSpellSelection = 0;
+ RefPtr<Selection> spellCheckSelection = GetSpellCheckSelection();
+ nsresult rv = NS_OK;
+ if (!spellCheckSelection) {
+ // Ensure we still unregister event listeners (but return a failure code)
+ UnregisterEventListeners();
+ rv = NS_ERROR_FAILURE;
+ } else {
+ if (!aDestroyingFrames) {
+ spellCheckSelection->RemoveAllRanges(IgnoreErrors());
+ }
+
+ rv = UnregisterEventListeners();
+ }
+
+ // Notify ENDED observers now. If we wait to notify as we normally do when
+ // these async operations finish, then in the meantime the editor may create
+ // another inline spell checker and cause more STARTED and ENDED
+ // notifications to be broadcast. Interleaved notifications for the same
+ // editor but different inline spell checkers could easily confuse
+ // observers. They may receive two consecutive STARTED notifications for
+ // example, which we guarantee will not happen.
+
+ RefPtr<EditorBase> editorBase = std::move(mEditorBase);
+ if (mPendingSpellCheck) {
+ // Cancel the pending editor spell checker initialization.
+ mPendingSpellCheck = nullptr;
+ mPendingInitEditorSpellCheckCallback->Cancel();
+ mPendingInitEditorSpellCheckCallback = nullptr;
+ ChangeNumPendingSpellChecks(-1, editorBase);
+ }
+
+ // Increment this token so that pending UpdateCurrentDictionary calls and
+ // scheduled spell checks are discarded when they finish.
+ mDisabledAsyncToken++;
+
+ if (mNumPendingUpdateCurrentDictionary > 0) {
+ // Account for pending UpdateCurrentDictionary calls.
+ ChangeNumPendingSpellChecks(-mNumPendingUpdateCurrentDictionary,
+ editorBase);
+ mNumPendingUpdateCurrentDictionary = 0;
+ }
+ if (mNumPendingSpellChecks > 0) {
+ // If mNumPendingSpellChecks is still > 0 at this point, the remainder is
+ // pending scheduled spell checks.
+ ChangeNumPendingSpellChecks(-mNumPendingSpellChecks, editorBase);
+ }
+
+ mFullSpellCheckScheduled = false;
+
+ return rv;
+}
+
+// mozInlineSpellChecker::CanEnableInlineSpellChecking
+//
+// This function can be called to see if it seems likely that we can enable
+// spellchecking before actually creating the InlineSpellChecking objects.
+//
+// The problem is that we can't get the dictionary list without actually
+// creating a whole bunch of spellchecking objects. This function tries to
+// do that and caches the result so we don't have to keep allocating those
+// objects if there are no dictionaries or spellchecking.
+//
+// Whenever dictionaries are added or removed at runtime, this value must be
+// updated before an observer notification is sent out about the change, to
+// avoid editors getting a wrong cached result.
+
+bool // static
+mozInlineSpellChecker::CanEnableInlineSpellChecking() {
+ if (gCanEnableSpellChecking == SpellCheck_Uninitialized) {
+ gCanEnableSpellChecking = SpellCheck_NotAvailable;
+
+ nsCOMPtr<nsIEditorSpellCheck> spellchecker = new EditorSpellCheck();
+
+ bool canSpellCheck = false;
+ nsresult rv = spellchecker->CanSpellCheck(&canSpellCheck);
+ NS_ENSURE_SUCCESS(rv, false);
+
+ if (canSpellCheck) gCanEnableSpellChecking = SpellCheck_Available;
+ }
+ return (gCanEnableSpellChecking == SpellCheck_Available);
+}
+
+void // static
+mozInlineSpellChecker::UpdateCanEnableInlineSpellChecking() {
+ gCanEnableSpellChecking = SpellCheck_Uninitialized;
+}
+
+// mozInlineSpellChecker::RegisterEventListeners
+//
+// The inline spell checker listens to mouse events and keyboard navigation
+// events.
+
+nsresult mozInlineSpellChecker::RegisterEventListeners() {
+ if (MOZ_UNLIKELY(NS_WARN_IF(!mEditorBase))) {
+ return NS_ERROR_FAILURE;
+ }
+
+ StartToListenToEditSubActions();
+
+ RefPtr<Document> doc = mEditorBase->GetDocument();
+ if (MOZ_UNLIKELY(NS_WARN_IF(!doc))) {
+ return NS_ERROR_FAILURE;
+ }
+ EventListenerManager* eventListenerManager =
+ doc->GetOrCreateListenerManager();
+ if (MOZ_UNLIKELY(NS_WARN_IF(!eventListenerManager))) {
+ return NS_ERROR_FAILURE;
+ }
+ eventListenerManager->AddEventListenerByType(
+ this, u"blur"_ns, TrustedEventsAtSystemGroupCapture());
+ eventListenerManager->AddEventListenerByType(
+ this, u"click"_ns, TrustedEventsAtSystemGroupCapture());
+ eventListenerManager->AddEventListenerByType(
+ this, u"keydown"_ns, TrustedEventsAtSystemGroupCapture());
+ return NS_OK;
+}
+
+// mozInlineSpellChecker::UnregisterEventListeners
+
+nsresult mozInlineSpellChecker::UnregisterEventListeners() {
+ if (MOZ_UNLIKELY(NS_WARN_IF(!mEditorBase))) {
+ return NS_ERROR_FAILURE;
+ }
+
+ EndListeningToEditSubActions();
+
+ RefPtr<Document> doc = mEditorBase->GetDocument();
+ if (MOZ_UNLIKELY(NS_WARN_IF(!doc))) {
+ return NS_ERROR_FAILURE;
+ }
+ EventListenerManager* eventListenerManager =
+ doc->GetOrCreateListenerManager();
+ if (MOZ_UNLIKELY(NS_WARN_IF(!eventListenerManager))) {
+ return NS_ERROR_FAILURE;
+ }
+ eventListenerManager->RemoveEventListenerByType(
+ this, u"blur"_ns, TrustedEventsAtSystemGroupCapture());
+ eventListenerManager->RemoveEventListenerByType(
+ this, u"click"_ns, TrustedEventsAtSystemGroupCapture());
+ eventListenerManager->RemoveEventListenerByType(
+ this, u"keydown"_ns, TrustedEventsAtSystemGroupCapture());
+ return NS_OK;
+}
+
+// mozInlineSpellChecker::GetEnableRealTimeSpell
+
+NS_IMETHODIMP
+mozInlineSpellChecker::GetEnableRealTimeSpell(bool* aEnabled) {
+ NS_ENSURE_ARG_POINTER(aEnabled);
+ *aEnabled = mSpellCheck != nullptr || mPendingSpellCheck != nullptr;
+ return NS_OK;
+}
+
+// mozInlineSpellChecker::SetEnableRealTimeSpell
+
+NS_IMETHODIMP
+mozInlineSpellChecker::SetEnableRealTimeSpell(bool aEnabled) {
+ if (!aEnabled) {
+ mSpellCheck = nullptr;
+ return Cleanup(false);
+ }
+
+ if (mSpellCheck) {
+ // spellcheck the current contents. SpellCheckRange doesn't supply a created
+ // range to DoSpellCheck, which in our case is the entire range. But this
+ // optimization doesn't matter because there is nothing in the spellcheck
+ // selection when starting, which triggers a better optimization.
+ return SpellCheckRange(nullptr);
+ }
+
+ if (mPendingSpellCheck) {
+ // The editor spell checker is already being initialized.
+ return NS_OK;
+ }
+
+ mPendingSpellCheck = new EditorSpellCheck();
+ mPendingSpellCheck->SetFilterType(nsIEditorSpellCheck::FILTERTYPE_MAIL);
+
+ mPendingInitEditorSpellCheckCallback = new InitEditorSpellCheckCallback(this);
+ nsresult rv = mPendingSpellCheck->InitSpellChecker(
+ mEditorBase, false, mPendingInitEditorSpellCheckCallback);
+ if (NS_FAILED(rv)) {
+ mPendingSpellCheck = nullptr;
+ mPendingInitEditorSpellCheckCallback = nullptr;
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ ChangeNumPendingSpellChecks(1);
+
+ return NS_OK;
+}
+
+// Called when nsIEditorSpellCheck::InitSpellChecker completes.
+nsresult mozInlineSpellChecker::EditorSpellCheckInited() {
+ MOZ_ASSERT(mPendingSpellCheck, "Spell check should be pending!");
+
+ // spell checking is enabled, register our event listeners to track navigation
+ RegisterEventListeners();
+
+ mSpellCheck = mPendingSpellCheck;
+ mPendingSpellCheck = nullptr;
+ mPendingInitEditorSpellCheckCallback = nullptr;
+ ChangeNumPendingSpellChecks(-1);
+
+ // spellcheck the current contents. SpellCheckRange doesn't supply a created
+ // range to DoSpellCheck, which in our case is the entire range. But this
+ // optimization doesn't matter because there is nothing in the spellcheck
+ // selection when starting, which triggers a better optimization.
+ return SpellCheckRange(nullptr);
+}
+
+// Changes the number of pending spell checks by the given delta. If the number
+// becomes zero or nonzero, observers are notified. See NotifyObservers for
+// info on the aEditor parameter.
+void mozInlineSpellChecker::ChangeNumPendingSpellChecks(
+ int32_t aDelta, EditorBase* aEditorBase) {
+ int8_t oldNumPending = mNumPendingSpellChecks;
+ mNumPendingSpellChecks += aDelta;
+ MOZ_ASSERT(mNumPendingSpellChecks >= 0,
+ "Unbalanced ChangeNumPendingSpellChecks calls!");
+ if (oldNumPending == 0 && mNumPendingSpellChecks > 0) {
+ NotifyObservers(INLINESPELL_STARTED_TOPIC, aEditorBase);
+ } else if (oldNumPending > 0 && mNumPendingSpellChecks == 0) {
+ NotifyObservers(INLINESPELL_ENDED_TOPIC, aEditorBase);
+ }
+}
+
+// Broadcasts the given topic to observers. aEditor is passed to observers if
+// nonnull; otherwise mEditorBase is passed.
+void mozInlineSpellChecker::NotifyObservers(const char* aTopic,
+ EditorBase* aEditorBase) {
+ nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
+ if (!os) return;
+ // XXX Do we need to grab the editor here? If it's necessary, each observer
+ // should do it instead.
+ RefPtr<EditorBase> editorBase = aEditorBase ? aEditorBase : mEditorBase.get();
+ os->NotifyObservers(static_cast<nsIEditor*>(editorBase.get()), aTopic,
+ nullptr);
+}
+
+// mozInlineSpellChecker::SpellCheckAfterEditorChange
+//
+// Called by the editor when nearly anything happens to change the content.
+//
+// The start and end positions specify a range for the thing that happened,
+// but these are usually nullptr, even when you'd think they would be useful
+// because you want the range (for example, pasting). We ignore them in
+// this case.
+
+nsresult mozInlineSpellChecker::SpellCheckAfterEditorChange(
+ EditSubAction aEditSubAction, Selection& aSelection,
+ nsINode* aPreviousSelectedNode, uint32_t aPreviousSelectedOffset,
+ nsINode* aStartNode, uint32_t aStartOffset, nsINode* aEndNode,
+ uint32_t aEndOffset) {
+ nsresult rv;
+ if (!mSpellCheck) return NS_OK; // disabling spell checking is not an error
+
+ // this means something has changed, and we never check the current word,
+ // therefore, we should spellcheck for subsequent caret navigations
+ mNeedsCheckAfterNavigation = true;
+
+ // the anchor node is the position of the caret
+ Result<UniquePtr<mozInlineSpellStatus>, nsresult> res =
+ mozInlineSpellStatus::CreateForEditorChange(
+ *this, aEditSubAction, aSelection.GetAnchorNode(),
+ aSelection.AnchorOffset(), aPreviousSelectedNode,
+ aPreviousSelectedOffset, aStartNode, aStartOffset, aEndNode,
+ aEndOffset);
+ if (NS_WARN_IF(res.isErr())) {
+ return res.unwrapErr();
+ }
+
+ rv = ScheduleSpellCheck(res.unwrap());
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // remember the current caret position after every change
+ SaveCurrentSelectionPosition();
+ return NS_OK;
+}
+
+// mozInlineSpellChecker::SpellCheckRange
+//
+// Spellchecks all the words in the given range.
+// Supply a nullptr range and this will check the entire editor.
+
+nsresult mozInlineSpellChecker::SpellCheckRange(nsRange* aRange) {
+ if (!mSpellCheck) {
+ NS_WARNING_ASSERTION(
+ mPendingSpellCheck,
+ "Trying to spellcheck, but checking seems to be disabled");
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ UniquePtr<mozInlineSpellStatus> status =
+ mozInlineSpellStatus::CreateForRange(*this, aRange);
+ return ScheduleSpellCheck(std::move(status));
+}
+
+// mozInlineSpellChecker::GetMisspelledWord
+
+NS_IMETHODIMP
+mozInlineSpellChecker::GetMisspelledWord(nsINode* aNode, uint32_t aOffset,
+ nsRange** newword) {
+ if (NS_WARN_IF(!aNode)) {
+ return NS_ERROR_INVALID_ARG;
+ }
+ RefPtr<Selection> spellCheckSelection = GetSpellCheckSelection();
+ if (NS_WARN_IF(!spellCheckSelection)) {
+ return NS_ERROR_FAILURE;
+ }
+ return IsPointInSelection(*spellCheckSelection, aNode, aOffset, newword);
+}
+
+// mozInlineSpellChecker::ReplaceWord
+
+NS_IMETHODIMP
+mozInlineSpellChecker::ReplaceWord(nsINode* aNode, uint32_t aOffset,
+ const nsAString& aNewWord) {
+ if (NS_WARN_IF(!mEditorBase) || NS_WARN_IF(aNewWord.IsEmpty())) {
+ return NS_ERROR_FAILURE;
+ }
+
+ RefPtr<nsRange> range;
+ nsresult res = GetMisspelledWord(aNode, aOffset, getter_AddRefs(range));
+ NS_ENSURE_SUCCESS(res, res);
+
+ if (!range) {
+ return NS_OK;
+ }
+
+ // In usual cases, any words shouldn't include line breaks, but technically,
+ // they may include and we need to avoid `HTMLTextAreaElement.value` returns
+ // \r. Therefore, we need to handle it here.
+ nsString newWord(aNewWord);
+ if (mEditorBase->IsTextEditor()) {
+ nsContentUtils::PlatformToDOMLineBreaks(newWord);
+ }
+
+ // Blink dispatches cancelable `beforeinput` event at collecting misspelled
+ // word so that we should allow to dispatch cancelable event.
+ RefPtr<EditorBase> editorBase(mEditorBase);
+ DebugOnly<nsresult> rv = editorBase->ReplaceTextAsAction(
+ newWord, range, EditorBase::AllowBeforeInputEventCancelable::Yes);
+ NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Failed to insert the new word");
+ return NS_OK;
+}
+
+// mozInlineSpellChecker::AddWordToDictionary
+
+NS_IMETHODIMP
+mozInlineSpellChecker::AddWordToDictionary(const nsAString& word) {
+ NS_ENSURE_TRUE(mSpellCheck, NS_ERROR_NOT_INITIALIZED);
+
+ nsresult rv = mSpellCheck->AddWordToDictionary(word);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ UniquePtr<mozInlineSpellStatus> status =
+ mozInlineSpellStatus::CreateForSelection(*this);
+ return ScheduleSpellCheck(std::move(status));
+}
+
+// mozInlineSpellChecker::RemoveWordFromDictionary
+
+NS_IMETHODIMP
+mozInlineSpellChecker::RemoveWordFromDictionary(const nsAString& word) {
+ NS_ENSURE_TRUE(mSpellCheck, NS_ERROR_NOT_INITIALIZED);
+
+ nsresult rv = mSpellCheck->RemoveWordFromDictionary(word);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ UniquePtr<mozInlineSpellStatus> status =
+ mozInlineSpellStatus::CreateForRange(*this, nullptr);
+ return ScheduleSpellCheck(std::move(status));
+}
+
+// mozInlineSpellChecker::IgnoreWord
+
+NS_IMETHODIMP
+mozInlineSpellChecker::IgnoreWord(const nsAString& word) {
+ NS_ENSURE_TRUE(mSpellCheck, NS_ERROR_NOT_INITIALIZED);
+
+ nsresult rv = mSpellCheck->IgnoreWordAllOccurrences(word);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ UniquePtr<mozInlineSpellStatus> status =
+ mozInlineSpellStatus::CreateForSelection(*this);
+ return ScheduleSpellCheck(std::move(status));
+}
+
+// mozInlineSpellChecker::IgnoreWords
+
+NS_IMETHODIMP
+mozInlineSpellChecker::IgnoreWords(const nsTArray<nsString>& aWordsToIgnore) {
+ NS_ENSURE_TRUE(mSpellCheck, NS_ERROR_NOT_INITIALIZED);
+
+ // add each word to the ignore list and then recheck the document
+ for (auto& word : aWordsToIgnore) {
+ mSpellCheck->IgnoreWordAllOccurrences(word);
+ }
+
+ UniquePtr<mozInlineSpellStatus> status =
+ mozInlineSpellStatus::CreateForSelection(*this);
+ return ScheduleSpellCheck(std::move(status));
+}
+
+// mozInlineSpellChecker::MakeSpellCheckRange
+//
+// Given begin and end positions, this function constructs a range as
+// required for ScheduleSpellCheck. If the start and end nodes are nullptr,
+// then the entire range will be selected, and you can supply -1 as the
+// offset to the end range to select all of that node.
+//
+// If the resulting range would be empty, nullptr is put into *aRange and the
+// function succeeds.
+
+nsresult mozInlineSpellChecker::MakeSpellCheckRange(nsINode* aStartNode,
+ int32_t aStartOffset,
+ nsINode* aEndNode,
+ int32_t aEndOffset,
+ nsRange** aRange) const {
+ nsresult rv;
+ *aRange = nullptr;
+
+ if (NS_WARN_IF(!mEditorBase)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ RefPtr<Document> doc = mEditorBase->GetDocument();
+ if (NS_WARN_IF(!doc)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ RefPtr<nsRange> range = nsRange::Create(doc);
+
+ // possibly use full range of the editor
+ if (!aStartNode || !aEndNode) {
+ Element* domRootElement = mEditorBase->GetRoot();
+ if (NS_WARN_IF(!domRootElement)) {
+ return NS_ERROR_FAILURE;
+ }
+ aStartNode = aEndNode = domRootElement;
+ aStartOffset = 0;
+ aEndOffset = -1;
+ }
+
+ if (aEndOffset == -1) {
+ // It's hard to say whether it's better to just do nsINode::GetChildCount or
+ // get the ChildNodes() and then its length. The latter is faster if we
+ // keep going through this code for the same nodes (because it caches the
+ // length). The former is faster if we keep getting different nodes here...
+ //
+ // Let's do the thing which can't end up with bad O(N^2) behavior.
+ aEndOffset = aEndNode->ChildNodes()->Length();
+ }
+
+ // sometimes we are are requested to check an empty range (possibly an empty
+ // document). This will result in assertions later.
+ if (aStartNode == aEndNode && aStartOffset == aEndOffset) return NS_OK;
+
+ if (aEndOffset) {
+ rv = range->SetStartAndEnd(aStartNode, aStartOffset, aEndNode, aEndOffset);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+ } else {
+ rv = range->SetStartAndEnd(RawRangeBoundary(aStartNode, aStartOffset),
+ RangeUtils::GetRawRangeBoundaryAfter(aEndNode));
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+ }
+
+ range.swap(*aRange);
+ return NS_OK;
+}
+
+nsresult mozInlineSpellChecker::SpellCheckBetweenNodes(nsINode* aStartNode,
+ int32_t aStartOffset,
+ nsINode* aEndNode,
+ int32_t aEndOffset) {
+ RefPtr<nsRange> range;
+ nsresult rv = MakeSpellCheckRange(aStartNode, aStartOffset, aEndNode,
+ aEndOffset, getter_AddRefs(range));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!range) return NS_OK; // range is empty: nothing to do
+
+ UniquePtr<mozInlineSpellStatus> status =
+ mozInlineSpellStatus::CreateForRange(*this, range);
+ return ScheduleSpellCheck(std::move(status));
+}
+
+// mozInlineSpellChecker::ShouldSpellCheckNode
+//
+// There are certain conditions when we don't want to spell check a node. In
+// particular quotations, moz signatures, etc. This routine returns false
+// for these cases.
+
+// static
+bool mozInlineSpellChecker::ShouldSpellCheckNode(EditorBase* aEditorBase,
+ nsINode* aNode) {
+ MOZ_ASSERT(aNode);
+ if (!aNode->IsContent()) return false;
+
+ nsIContent* content = aNode->AsContent();
+
+ if (aEditorBase->IsMailEditor()) {
+ nsIContent* parent = content->GetParent();
+ while (parent) {
+ if (parent->IsHTMLElement(nsGkAtoms::blockquote) &&
+ parent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
+ nsGkAtoms::cite, eIgnoreCase)) {
+ return false;
+ }
+ if (parent->IsAnyOfHTMLElements(nsGkAtoms::pre, nsGkAtoms::div) &&
+ parent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::_class,
+ nsGkAtoms::mozsignature,
+ eIgnoreCase)) {
+ return false;
+ }
+ if (parent->IsHTMLElement(nsGkAtoms::div) &&
+ parent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::_class,
+ nsGkAtoms::mozfwcontainer,
+ eIgnoreCase)) {
+ return false;
+ }
+
+ parent = parent->GetParent();
+ }
+ } else {
+ // Check spelling only if the node is editable, and GetSpellcheck() is true
+ // on the nearest HTMLElement ancestor.
+ if (!content->IsEditable()) {
+ return false;
+ }
+
+ // Make sure that we can always turn on spell checking for inputs/textareas.
+ // Note that because of the previous check, at this point we know that the
+ // node is editable.
+ if (content->IsInNativeAnonymousSubtree()) {
+ nsIContent* node = content->GetParent();
+ while (node && node->IsInNativeAnonymousSubtree()) {
+ node = node->GetParent();
+ }
+ if (node && node->IsTextControlElement()) {
+ return true;
+ }
+ }
+
+ // Get HTML element ancestor (might be aNode itself, although probably that
+ // has to be a text node in real life here)
+ nsIContent* parent = content;
+ while (!parent->IsHTMLElement()) {
+ parent = parent->GetParent();
+ if (!parent) {
+ return true;
+ }
+ }
+
+ // See if it's spellcheckable
+ return static_cast<nsGenericHTMLElement*>(parent)->Spellcheck();
+ }
+
+ return true;
+}
+
+// mozInlineSpellChecker::ScheduleSpellCheck
+//
+// This is called by code to do the actual spellchecking. We will set up
+// the proper structures for calls to DoSpellCheck.
+
+nsresult mozInlineSpellChecker::ScheduleSpellCheck(
+ UniquePtr<mozInlineSpellStatus>&& aStatus) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Debug,
+ ("%s: mFullSpellCheckScheduled=%i", __FUNCTION__,
+ mFullSpellCheckScheduled));
+
+ if (mFullSpellCheckScheduled) {
+ // Just ignore this; we're going to spell-check everything anyway
+ return NS_OK;
+ }
+ // Cache the value because we are going to move aStatus's ownership to
+ // the new created mozInlineSpellResume instance.
+ bool isFullSpellCheck = aStatus->IsFullSpellCheck();
+
+ RefPtr<mozInlineSpellResume> resume =
+ new mozInlineSpellResume(std::move(aStatus), mDisabledAsyncToken);
+ NS_ENSURE_TRUE(resume, NS_ERROR_OUT_OF_MEMORY);
+
+ nsresult rv = resume->Post();
+ if (NS_SUCCEEDED(rv)) {
+ if (isFullSpellCheck) {
+ // We're going to check everything. Suppress further spell-check attempts
+ // until that happens.
+ mFullSpellCheckScheduled = true;
+ }
+ ChangeNumPendingSpellChecks(1);
+ }
+ return rv;
+}
+
+// mozInlineSpellChecker::DoSpellCheckSelection
+//
+// Called to re-check all misspelled words. We iterate over all ranges in
+// the selection and call DoSpellCheck on them. This is used when a word
+// is ignored or added to the dictionary: all instances of that word should
+// be removed from the selection.
+//
+// FIXME-PERFORMANCE: This takes as long as it takes and is not resumable.
+// Typically, checking this small amount of text is relatively fast, but
+// for large numbers of words, a lag may be noticeable.
+
+nsresult mozInlineSpellChecker::DoSpellCheckSelection(
+ mozInlineSpellWordUtil& aWordUtil, Selection* aSpellCheckSelection) {
+ nsresult rv;
+
+ // clear out mNumWordsInSpellSelection since we'll be rebuilding the ranges.
+ mNumWordsInSpellSelection = 0;
+
+ // Since we could be modifying the ranges for the spellCheckSelection while
+ // looping on the spell check selection, keep a separate array of range
+ // elements inside the selection
+ nsTArray<RefPtr<nsRange>> ranges;
+
+ const uint32_t rangeCount = aSpellCheckSelection->RangeCount();
+ for (const uint32_t idx : IntegerRange(rangeCount)) {
+ MOZ_ASSERT(aSpellCheckSelection->RangeCount() == rangeCount);
+ nsRange* range = aSpellCheckSelection->GetRangeAt(idx);
+ MOZ_ASSERT(range);
+ if (MOZ_LIKELY(range)) {
+ ranges.AppendElement(range);
+ }
+ }
+
+ // We have saved the ranges above. Clearing the spellcheck selection here
+ // isn't necessary (rechecking each word will modify it as necessary) but
+ // provides better performance. By ensuring that no ranges need to be
+ // removed in DoSpellCheck, we can save checking range inclusion which is
+ // slow.
+ aSpellCheckSelection->RemoveAllRanges(IgnoreErrors());
+
+ // We use this state object for all calls, and just update its range. Note
+ // that we don't need to call FinishInit since we will be filling in the
+ // necessary information.
+ UniquePtr<mozInlineSpellStatus> status =
+ mozInlineSpellStatus::CreateForRange(*this, nullptr);
+
+ bool doneChecking;
+ for (uint32_t idx : IntegerRange(rangeCount)) {
+ // We can consider this word as "added" since we know it has no spell
+ // check range over it that needs to be deleted. All the old ranges
+ // were cleared above. We also need to clear the word count so that we
+ // check all words instead of stopping early.
+ status->mRange = ranges[idx];
+ rv = DoSpellCheck(aWordUtil, aSpellCheckSelection, status, &doneChecking);
+ NS_ENSURE_SUCCESS(rv, rv);
+ MOZ_ASSERT(
+ doneChecking,
+ "We gave the spellchecker one word, but it didn't finish checking?!?!");
+ }
+
+ return NS_OK;
+}
+
+class MOZ_STACK_CLASS mozInlineSpellChecker::SpellCheckerSlice {
+ public:
+ /**
+ * @param aStatus must be non-nullptr.
+ */
+ SpellCheckerSlice(mozInlineSpellChecker& aInlineSpellChecker,
+ mozInlineSpellWordUtil& aWordUtil,
+ mozilla::dom::Selection& aSpellCheckSelection,
+ const mozilla::UniquePtr<mozInlineSpellStatus>& aStatus,
+ bool& aDoneChecking)
+ : mInlineSpellChecker{aInlineSpellChecker},
+ mWordUtil{aWordUtil},
+ mSpellCheckSelection{aSpellCheckSelection},
+ mStatus{aStatus},
+ mDoneChecking{aDoneChecking} {
+ MOZ_ASSERT(aStatus);
+ }
+
+ [[nodiscard]] nsresult Execute();
+
+ private:
+ // Creates an async request to check the words and update the ranges for the
+ // misspellings.
+ //
+ // @param aWords normalized words corresponding to aNodeOffsetRangesForWords.
+ // @param aOldRangesForSomeWords ranges from previous spellcheckings which
+ // might need to be removed. Its length might
+ // differ from `aWords.Length()`.
+ // @param aNodeOffsetRangesForWords One range for each word in aWords. So
+ // `aNodeOffsetRangesForWords.Length() ==
+ // aWords.Length()`.
+ void CheckWordsAndUpdateRangesForMisspellings(
+ const nsTArray<nsString>& aWords,
+ nsTArray<RefPtr<nsRange>>&& aOldRangesForSomeWords,
+ nsTArray<NodeOffsetRange>&& aNodeOffsetRangesForWords);
+
+ void RemoveRanges(const nsTArray<RefPtr<nsRange>>& aRanges);
+
+ bool ShouldSpellCheckRange(const nsRange& aRange) const;
+
+ bool IsInNoCheckRange(const nsINode& aNode, int32_t aOffset) const;
+
+ mozInlineSpellChecker& mInlineSpellChecker;
+ mozInlineSpellWordUtil& mWordUtil;
+ mozilla::dom::Selection& mSpellCheckSelection;
+ const mozilla::UniquePtr<mozInlineSpellStatus>& mStatus;
+ bool& mDoneChecking;
+};
+
+bool mozInlineSpellChecker::SpellCheckerSlice::ShouldSpellCheckRange(
+ const nsRange& aRange) const {
+ if (aRange.Collapsed()) {
+ return false;
+ }
+
+ nsINode* beginNode = aRange.GetStartContainer();
+ nsINode* endNode = aRange.GetEndContainer();
+
+ const nsINode* rootNode = mWordUtil.GetRootNode();
+ return beginNode->IsInComposedDoc() && endNode->IsInComposedDoc() &&
+ beginNode->IsShadowIncludingInclusiveDescendantOf(rootNode) &&
+ endNode->IsShadowIncludingInclusiveDescendantOf(rootNode);
+}
+
+bool mozInlineSpellChecker::SpellCheckerSlice::IsInNoCheckRange(
+ const nsINode& aNode, int32_t aOffset) const {
+ ErrorResult erv;
+ return mStatus->GetNoCheckRange() &&
+ mStatus->GetNoCheckRange()->IsPointInRange(aNode, aOffset, erv);
+}
+
+void mozInlineSpellChecker::SpellCheckerSlice::RemoveRanges(
+ const nsTArray<RefPtr<nsRange>>& aRanges) {
+ for (uint32_t i = 0; i < aRanges.Length(); i++) {
+ mInlineSpellChecker.RemoveRange(&mSpellCheckSelection, aRanges[i]);
+ }
+}
+
+// mozInlineSpellChecker::SpellCheckerSlice::Execute
+//
+// This function checks words intersecting the given range, excluding those
+// inside mStatus->mNoCheckRange (can be nullptr). Words inside aNoCheckRange
+// will have any spell selection removed (this is used to hide the
+// underlining for the word that the caret is in). aNoCheckRange should be
+// on word boundaries.
+//
+// mResume->mCreatedRange is a possibly nullptr range of new text that was
+// inserted. Inside this range, we don't bother to check whether things are
+// inside the spellcheck selection, which speeds up large paste operations
+// considerably.
+//
+// Normal case when editing text by typing
+// h e l l o w o r k d h o w a r e y o u
+// ^ caret
+// [-------] mRange
+// [-------] mNoCheckRange
+// -> does nothing (range is the same as the no check range)
+//
+// Case when pasting:
+// [---------- pasted text ----------]
+// h e l l o w o r k d h o w a r e y o u
+// ^ caret
+// [---] aNoCheckRange
+// -> recheck all words in range except those in aNoCheckRange
+//
+// If checking is complete, *aDoneChecking will be set. If there is more
+// but we ran out of time, this will be false and the range will be
+// updated with the stuff that still needs checking.
+
+nsresult mozInlineSpellChecker::SpellCheckerSlice::Execute() {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Debug, ("%s", __FUNCTION__));
+
+ mDoneChecking = true;
+
+ if (NS_WARN_IF(!mInlineSpellChecker.mSpellCheck)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ if (mInlineSpellChecker.IsSpellCheckSelectionFull()) {
+ return NS_OK;
+ }
+
+ // get the editor for ShouldSpellCheckNode, this may fail in reasonable
+ // circumstances since the editor could have gone away
+ RefPtr<EditorBase> editorBase = mInlineSpellChecker.mEditorBase;
+ if (!editorBase || editorBase->Destroyed()) {
+ return NS_ERROR_FAILURE;
+ }
+
+ if (!ShouldSpellCheckRange(*mStatus->mRange)) {
+ // Just bail out and don't try to spell-check this
+ return NS_OK;
+ }
+
+ // see if the selection has any ranges, if not, then we can optimize checking
+ // range inclusion later (we have no ranges when we are initially checking or
+ // when there are no misspelled words yet).
+ const int32_t originalRangeCount = mSpellCheckSelection.RangeCount();
+
+ // set the starting DOM position to be the beginning of our range
+ if (nsresult rv = mWordUtil.SetPositionAndEnd(
+ mStatus->mRange->GetStartContainer(), mStatus->mRange->StartOffset(),
+ mStatus->mRange->GetEndContainer(), mStatus->mRange->EndOffset());
+ NS_FAILED(rv)) {
+ // Just bail out and don't try to spell-check this
+ return NS_OK;
+ }
+
+ // aWordUtil.SetPosition flushes pending notifications, check editor again.
+ if (!mInlineSpellChecker.mEditorBase) {
+ return NS_ERROR_FAILURE;
+ }
+
+ int32_t wordsChecked = 0;
+ PRTime beginTime = PR_Now();
+
+ nsTArray<nsString> normalizedWords;
+ nsTArray<RefPtr<nsRange>> oldRangesToRemove;
+ nsTArray<NodeOffsetRange> checkRanges;
+ mozInlineSpellWordUtil::Word word;
+ static const size_t requestChunkSize =
+ INLINESPELL_MAXIMUM_CHUNKED_WORDS_PER_TASK;
+
+ while (mWordUtil.GetNextWord(word)) {
+ // get the range for the current word.
+ nsINode* const beginNode = word.mNodeOffsetRange.Begin().Node();
+ nsINode* const endNode = word.mNodeOffsetRange.End().Node();
+ // TODO: Make them `uint32_t`
+ const int32_t beginOffset = word.mNodeOffsetRange.Begin().Offset();
+ const int32_t endOffset = word.mNodeOffsetRange.End().Offset();
+
+ // see if we've done enough words in this round and run out of time.
+ if (wordsChecked >= INLINESPELL_MINIMUM_WORDS_BEFORE_TIMEOUT &&
+ PR_Now() > PRTime(beginTime + kMaxSpellCheckTimeInUsec)) {
+ // stop checking, our time limit has been exceeded.
+ MOZ_LOG(
+ sInlineSpellCheckerLog, LogLevel::Verbose,
+ ("%s: we have run out of time, schedule next round.", __FUNCTION__));
+
+ CheckWordsAndUpdateRangesForMisspellings(normalizedWords,
+ std::move(oldRangesToRemove),
+ std::move(checkRanges));
+
+ // move the range to encompass the stuff that needs checking.
+ nsresult rv = mStatus->mRange->SetStart(
+ beginNode, AssertedCast<uint32_t>(beginOffset));
+ if (NS_FAILED(rv)) {
+ // The range might be unhappy because the beginning is after the
+ // end. This is possible when the requested end was in the middle
+ // of a word, just ignore this situation and assume we're done.
+ return NS_OK;
+ }
+ mDoneChecking = false;
+ return NS_OK;
+ }
+
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Debug,
+ ("%s: got word \"%s\"%s", __FUNCTION__,
+ NS_ConvertUTF16toUTF8(word.mText).get(),
+ word.mSkipChecking ? " (not checking)" : ""));
+
+ // see if there is a spellcheck range that already intersects the word
+ // and remove it. We only need to remove old ranges, so don't bother if
+ // there were no ranges when we started out.
+ if (originalRangeCount > 0) {
+ ErrorResult erv;
+ // likewise, if this word is inside new text, we won't bother testing
+ if (!mStatus->GetCreatedRange() ||
+ !mStatus->GetCreatedRange()->IsPointInRange(
+ *beginNode, AssertedCast<uint32_t>(beginOffset), erv)) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Debug,
+ ("%s: removing ranges for some interval.", __FUNCTION__));
+
+ nsTArray<RefPtr<nsRange>> ranges;
+ mSpellCheckSelection.GetRangesForInterval(
+ *beginNode, AssertedCast<uint32_t>(beginOffset), *endNode,
+ AssertedCast<uint32_t>(endOffset), true, ranges, erv);
+ ENSURE_SUCCESS(erv, erv.StealNSResult());
+ oldRangesToRemove.AppendElements(std::move(ranges));
+ }
+ }
+
+ // some words are special and don't need checking
+ if (word.mSkipChecking) {
+ continue;
+ }
+
+ // some nodes we don't spellcheck
+ if (!mozInlineSpellChecker::ShouldSpellCheckNode(editorBase, beginNode)) {
+ continue;
+ }
+
+ // Don't check spelling if we're inside the noCheckRange. This needs to
+ // be done after we clear any old selection because the excluded word
+ // might have been previously marked.
+ //
+ // We do a simple check to see if the beginning of our word is in the
+ // exclusion range. Because the exclusion range is a multiple of a word,
+ // this is sufficient.
+ if (IsInNoCheckRange(*beginNode, beginOffset)) {
+ continue;
+ }
+
+ // check spelling and add to selection if misspelled
+ mozInlineSpellWordUtil::NormalizeWord(word.mText);
+ normalizedWords.AppendElement(word.mText);
+ checkRanges.AppendElement(word.mNodeOffsetRange);
+ wordsChecked++;
+ if (normalizedWords.Length() >= requestChunkSize) {
+ CheckWordsAndUpdateRangesForMisspellings(normalizedWords,
+ std::move(oldRangesToRemove),
+ std::move(checkRanges));
+ normalizedWords.Clear();
+ oldRangesToRemove = {};
+ // Set new empty data for spellcheck range in DOM to avoid
+ // clang-tidy detection.
+ checkRanges = nsTArray<NodeOffsetRange>();
+ }
+ }
+
+ CheckWordsAndUpdateRangesForMisspellings(
+ normalizedWords, std::move(oldRangesToRemove), std::move(checkRanges));
+
+ return NS_OK;
+}
+
+nsresult mozInlineSpellChecker::DoSpellCheck(
+ mozInlineSpellWordUtil& aWordUtil, Selection* aSpellCheckSelection,
+ const UniquePtr<mozInlineSpellStatus>& aStatus, bool* aDoneChecking) {
+ MOZ_ASSERT(aDoneChecking);
+
+ SpellCheckerSlice spellCheckerSlice{*this, aWordUtil, *aSpellCheckSelection,
+ aStatus, *aDoneChecking};
+
+ return spellCheckerSlice.Execute();
+}
+
+// An RAII helper that calls ChangeNumPendingSpellChecks on destruction.
+class MOZ_RAII AutoChangeNumPendingSpellChecks final {
+ public:
+ explicit AutoChangeNumPendingSpellChecks(mozInlineSpellChecker* aSpellChecker,
+ int32_t aDelta)
+ : mSpellChecker(aSpellChecker), mDelta(aDelta) {}
+
+ ~AutoChangeNumPendingSpellChecks() {
+ mSpellChecker->ChangeNumPendingSpellChecks(mDelta);
+ }
+
+ private:
+ RefPtr<mozInlineSpellChecker> mSpellChecker;
+ int32_t mDelta;
+};
+
+void mozInlineSpellChecker::SpellCheckerSlice::
+ CheckWordsAndUpdateRangesForMisspellings(
+ const nsTArray<nsString>& aWords,
+ nsTArray<RefPtr<nsRange>>&& aOldRangesForSomeWords,
+ nsTArray<NodeOffsetRange>&& aNodeOffsetRangesForWords) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose,
+ ("%s: aWords.Length()=%i", __FUNCTION__,
+ static_cast<int>(aWords.Length())));
+
+ MOZ_ASSERT(aWords.Length() == aNodeOffsetRangesForWords.Length());
+
+ // TODO:
+ // aOldRangesForSomeWords is sorted in the same order as aWords. Could be used
+ // to remove ranges more efficiently.
+
+ if (aWords.IsEmpty()) {
+ RemoveRanges(aOldRangesForSomeWords);
+ return;
+ }
+
+ mInlineSpellChecker.ChangeNumPendingSpellChecks(1);
+
+ RefPtr<mozInlineSpellChecker> inlineSpellChecker = &mInlineSpellChecker;
+ RefPtr<Selection> spellCheckerSelection = &mSpellCheckSelection;
+ uint32_t token = mInlineSpellChecker.mDisabledAsyncToken;
+ mInlineSpellChecker.mSpellCheck->CheckCurrentWordsNoSuggest(aWords)->Then(
+ GetMainThreadSerialEventTarget(), __func__,
+ [inlineSpellChecker, spellCheckerSelection,
+ nodeOffsetRangesForWords = std::move(aNodeOffsetRangesForWords),
+ oldRangesForSomeWords = std::move(aOldRangesForSomeWords),
+ token](const nsTArray<bool>& aIsMisspelled) {
+ if (token != inlineSpellChecker->GetDisabledAsyncToken()) {
+ // This result is never used
+ return;
+ }
+
+ if (!inlineSpellChecker->mEditorBase ||
+ inlineSpellChecker->mEditorBase->Destroyed()) {
+ return;
+ }
+
+ AutoChangeNumPendingSpellChecks pendingChecks(inlineSpellChecker, -1);
+
+ if (inlineSpellChecker->IsSpellCheckSelectionFull()) {
+ return;
+ }
+
+ inlineSpellChecker->UpdateRangesForMisspelledWords(
+ nodeOffsetRangesForWords, oldRangesForSomeWords, aIsMisspelled,
+ *spellCheckerSelection);
+ },
+ [inlineSpellChecker, token](nsresult aRv) {
+ if (!inlineSpellChecker->mEditorBase ||
+ inlineSpellChecker->mEditorBase->Destroyed()) {
+ return;
+ }
+
+ if (token != inlineSpellChecker->GetDisabledAsyncToken()) {
+ // This result is never used
+ return;
+ }
+
+ inlineSpellChecker->ChangeNumPendingSpellChecks(-1);
+ });
+}
+
+// mozInlineSpellChecker::ResumeCheck
+//
+// Called by the resume event when it fires. We will try to pick up where
+// the last resume left off.
+
+nsresult mozInlineSpellChecker::ResumeCheck(
+ UniquePtr<mozInlineSpellStatus>&& aStatus) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Debug, ("%s", __FUNCTION__));
+
+ // Observers should be notified that spell check has ended only after spell
+ // check is done below, but since there are many early returns in this method
+ // and the number of pending spell checks must be decremented regardless of
+ // whether the spell check actually happens, use this RAII object.
+ AutoChangeNumPendingSpellChecks autoChangeNumPending(this, -1);
+
+ if (aStatus->IsFullSpellCheck()) {
+ // Allow posting new spellcheck resume events from inside
+ // ResumeCheck, now that we're actually firing.
+ MOZ_ASSERT(mFullSpellCheckScheduled,
+ "How could this be false? The full spell check is "
+ "calling us!!");
+ mFullSpellCheckScheduled = false;
+ }
+
+ if (!mSpellCheck) return NS_OK; // spell checking has been turned off
+
+ if (!mEditorBase) {
+ return NS_OK;
+ }
+
+ Maybe<mozInlineSpellWordUtil> wordUtil{
+ mozInlineSpellWordUtil::Create(*mEditorBase)};
+ if (!wordUtil) {
+ return NS_OK; // editor doesn't like us, don't assert
+ }
+
+ RefPtr<Selection> spellCheckSelection = GetSpellCheckSelection();
+ if (NS_WARN_IF(!spellCheckSelection)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ nsTArray<nsCString> currentDictionaries;
+ nsresult rv = mSpellCheck->GetCurrentDictionaries(currentDictionaries);
+ if (NS_FAILED(rv)) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Debug,
+ ("%s: no active dictionary.", __FUNCTION__));
+
+ // no active dictionary
+ for (const uint32_t index :
+ Reversed(IntegerRange(spellCheckSelection->RangeCount()))) {
+ RefPtr<nsRange> checkRange = spellCheckSelection->GetRangeAt(index);
+ if (MOZ_LIKELY(checkRange)) {
+ RemoveRange(spellCheckSelection, checkRange);
+ }
+ }
+ return NS_OK;
+ }
+
+ CleanupRangesInSelection(spellCheckSelection);
+
+ rv = aStatus->FinishInitOnEvent(*wordUtil);
+ NS_ENSURE_SUCCESS(rv, rv);
+ if (!aStatus->mRange) return NS_OK; // empty range, nothing to do
+
+ bool doneChecking = true;
+ if (aStatus->GetOperation() == mozInlineSpellStatus::eOpSelection)
+ rv = DoSpellCheckSelection(*wordUtil, spellCheckSelection);
+ else
+ rv = DoSpellCheck(*wordUtil, spellCheckSelection, aStatus, &doneChecking);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!doneChecking) rv = ScheduleSpellCheck(std::move(aStatus));
+ return rv;
+}
+
+// mozInlineSpellChecker::IsPointInSelection
+//
+// Determines if a given (node,offset) point is inside the given
+// selection. If so, the specific range of the selection that
+// intersects is places in *aRange. (There may be multiple disjoint
+// ranges in a selection.)
+//
+// If there is no intersection, *aRange will be nullptr.
+
+// static
+nsresult mozInlineSpellChecker::IsPointInSelection(Selection& aSelection,
+ nsINode* aNode,
+ uint32_t aOffset,
+ nsRange** aRange) {
+ *aRange = nullptr;
+
+ nsTArray<nsRange*> ranges;
+ nsresult rv = aSelection.GetDynamicRangesForIntervalArray(
+ aNode, aOffset, aNode, aOffset, true, &ranges);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (ranges.Length() == 0) return NS_OK; // no matches
+
+ // there may be more than one range returned, and we don't know what do
+ // do with that, so just get the first one
+ NS_ADDREF(*aRange = ranges[0]);
+ return NS_OK;
+}
+
+nsresult mozInlineSpellChecker::CleanupRangesInSelection(
+ Selection* aSelection) {
+ // integrity check - remove ranges that have collapsed to nothing. This
+ // can happen if the node containing a highlighted word was removed.
+ if (!aSelection) return NS_ERROR_FAILURE;
+
+ // TODO: Rewrite this with reversed ranged-loop, it might make this simpler.
+ int64_t count = aSelection->RangeCount();
+ for (int64_t index = 0; index < count; index++) {
+ nsRange* checkRange = aSelection->GetRangeAt(static_cast<uint32_t>(index));
+ if (MOZ_LIKELY(checkRange)) {
+ if (checkRange->Collapsed()) {
+ RemoveRange(aSelection, checkRange);
+ index--;
+ count--;
+ }
+ }
+ }
+
+ return NS_OK;
+}
+
+// mozInlineSpellChecker::RemoveRange
+//
+// For performance reasons, we have an upper bound on the number of word
+// ranges in the spell check selection. When removing a range from the
+// selection, we need to decrement mNumWordsInSpellSelection
+
+nsresult mozInlineSpellChecker::RemoveRange(Selection* aSpellCheckSelection,
+ nsRange* aRange) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Debug, ("%s", __FUNCTION__));
+
+ NS_ENSURE_ARG_POINTER(aSpellCheckSelection);
+ NS_ENSURE_ARG_POINTER(aRange);
+
+ ErrorResult rv;
+ RefPtr<nsRange> range{aRange};
+ RefPtr<Selection> selection{aSpellCheckSelection};
+ selection->RemoveRangeAndUnselectFramesAndNotifyListeners(*range, rv);
+ if (!rv.Failed()) {
+ if (mNumWordsInSpellSelection) {
+ mNumWordsInSpellSelection--;
+ }
+#ifdef ACCESSIBILITY
+ if (nsAccessibilityService* accService = GetAccService()) {
+ accService->SpellCheckRangeChanged(*aRange);
+ }
+#endif
+ }
+
+ return rv.StealNSResult();
+}
+
+struct mozInlineSpellChecker::CompareRangeAndNodeOffsetRange {
+ static bool Equals(const RefPtr<nsRange>& aRange,
+ const NodeOffsetRange& aNodeOffsetRange) {
+ return aNodeOffsetRange == *aRange;
+ }
+};
+
+void mozInlineSpellChecker::UpdateRangesForMisspelledWords(
+ const nsTArray<NodeOffsetRange>& aNodeOffsetRangesForWords,
+ const nsTArray<RefPtr<nsRange>>& aOldRangesForSomeWords,
+ const nsTArray<bool>& aIsMisspelled, Selection& aSpellCheckerSelection) {
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose, ("%s", __FUNCTION__));
+
+ MOZ_ASSERT(aNodeOffsetRangesForWords.Length() == aIsMisspelled.Length());
+
+ // When the spellchecker checks text containing words separated by "/", it may
+ // happen that some words checked in one timeslice, are checked again in a
+ // following timeslice. E.g. for "foo/baz/qwertz", it may happen that "foo"
+ // and "baz" are checked in one timeslice and two ranges are added for them.
+ // In the following timeslice "foo" and "baz" are checked again but since
+ // their corresponding ranges are already in the spellcheck-Selection
+ // they don't have to be added again and since "foo" and "baz" still contain
+ // spelling mistakes, they don't have to be removed.
+ //
+ // In this case, it's more efficient to keep the existing ranges.
+
+ AutoTArray<bool, INLINESPELL_MAXIMUM_CHUNKED_WORDS_PER_TASK>
+ oldRangesMarkedForRemoval;
+ for (size_t i = 0; i < aOldRangesForSomeWords.Length(); ++i) {
+ oldRangesMarkedForRemoval.AppendElement(true);
+ }
+
+ AutoTArray<bool, INLINESPELL_MAXIMUM_CHUNKED_WORDS_PER_TASK>
+ nodeOffsetRangesMarkedForAdding;
+ for (size_t i = 0; i < aNodeOffsetRangesForWords.Length(); ++i) {
+ nodeOffsetRangesMarkedForAdding.AppendElement(false);
+ }
+
+ for (size_t i = 0; i < aIsMisspelled.Length(); i++) {
+ if (!aIsMisspelled[i]) {
+ continue;
+ }
+
+ const NodeOffsetRange& nodeOffsetRange = aNodeOffsetRangesForWords[i];
+ const size_t indexOfOldRangeToKeep = aOldRangesForSomeWords.IndexOf(
+ nodeOffsetRange, 0, CompareRangeAndNodeOffsetRange{});
+ if (indexOfOldRangeToKeep != aOldRangesForSomeWords.NoIndex &&
+ aOldRangesForSomeWords[indexOfOldRangeToKeep]->IsInSelection(
+ aSpellCheckerSelection)) {
+ /** TODO: warn in case the old range doesn't
+ belong to the selection. This is not critical,
+ because other code can always remove them
+ before the actual spellchecking happens. */
+ MOZ_LOG(sInlineSpellCheckerLog, LogLevel::Verbose,
+ ("%s: reusing old range.", __FUNCTION__));
+
+ oldRangesMarkedForRemoval[indexOfOldRangeToKeep] = false;
+ } else {
+ nodeOffsetRangesMarkedForAdding[i] = true;
+ }
+ }
+
+ for (size_t i = 0; i < oldRangesMarkedForRemoval.Length(); ++i) {
+ if (oldRangesMarkedForRemoval[i]) {
+ RemoveRange(&aSpellCheckerSelection, aOldRangesForSomeWords[i]);
+ }
+ }
+
+ // Add ranges after removing the marked old ones, so that the Selection can
+ // become full again.
+ for (size_t i = 0; i < nodeOffsetRangesMarkedForAdding.Length(); ++i) {
+ if (nodeOffsetRangesMarkedForAdding[i]) {
+ RefPtr<nsRange> wordRange =
+ mozInlineSpellWordUtil::MakeRange(aNodeOffsetRangesForWords[i]);
+ // If we somehow can't make a range for this word, just ignore
+ // it.
+ if (wordRange) {
+ AddRange(&aSpellCheckerSelection, wordRange);
+ }
+ }
+ }
+}
+
+// mozInlineSpellChecker::AddRange
+//
+// For performance reasons, we have an upper bound on the number of word
+// ranges we'll add to the spell check selection. Once we reach that upper
+// bound, stop adding the ranges
+
+nsresult mozInlineSpellChecker::AddRange(Selection* aSpellCheckSelection,
+ nsRange* aRange) {
+ NS_ENSURE_ARG_POINTER(aSpellCheckSelection);
+ NS_ENSURE_ARG_POINTER(aRange);
+
+ nsresult rv = NS_OK;
+
+ if (!IsSpellCheckSelectionFull()) {
+ IgnoredErrorResult err;
+ aSpellCheckSelection->AddRangeAndSelectFramesAndNotifyListeners(*aRange,
+ err);
+ if (err.Failed()) {
+ rv = err.StealNSResult();
+ } else {
+ mNumWordsInSpellSelection++;
+#ifdef ACCESSIBILITY
+ if (nsAccessibilityService* accService = GetAccService()) {
+ accService->SpellCheckRangeChanged(*aRange);
+ }
+#endif
+ }
+ }
+
+ return rv;
+}
+
+already_AddRefed<Selection> mozInlineSpellChecker::GetSpellCheckSelection() {
+ if (NS_WARN_IF(!mEditorBase)) {
+ return nullptr;
+ }
+ RefPtr<Selection> selection =
+ mEditorBase->GetSelection(SelectionType::eSpellCheck);
+ if (!selection) {
+ return nullptr;
+ }
+ return selection.forget();
+}
+
+nsresult mozInlineSpellChecker::SaveCurrentSelectionPosition() {
+ if (NS_WARN_IF(!mEditorBase)) {
+ return NS_OK; // XXX Why NS_OK?
+ }
+
+ // figure out the old caret position based on the current selection
+ RefPtr<Selection> selection = mEditorBase->GetSelection();
+ if (NS_WARN_IF(!selection)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ mCurrentSelectionAnchorNode = selection->GetFocusNode();
+ mCurrentSelectionOffset = selection->FocusOffset();
+
+ return NS_OK;
+}
+
+// mozInlineSpellChecker::HandleNavigationEvent
+//
+// Acts upon mouse clicks and keyboard navigation changes, spell checking
+// the previous word if the new navigation location moves us to another
+// word.
+//
+// This is complicated by the fact that our mouse events are happening after
+// selection has been changed to account for the mouse click. But keyboard
+// events are happening before the caret selection has changed. Working
+// around this by letting keyboard events setting forceWordSpellCheck to
+// true. aNewPositionOffset also tries to work around this for the
+// DOM_VK_RIGHT and DOM_VK_LEFT cases.
+
+nsresult mozInlineSpellChecker::HandleNavigationEvent(
+ bool aForceWordSpellCheck, int32_t aNewPositionOffset) {
+ nsresult rv;
+
+ // If we already handled the navigation event and there is no possibility
+ // anything has changed since then, we don't have to do anything. This
+ // optimization makes a noticeable difference when you hold down a navigation
+ // key like Page Down.
+ if (!mNeedsCheckAfterNavigation) return NS_OK;
+
+ nsCOMPtr<nsINode> currentAnchorNode = mCurrentSelectionAnchorNode;
+ uint32_t currentAnchorOffset = mCurrentSelectionOffset;
+
+ // now remember the new focus position resulting from the event
+ rv = SaveCurrentSelectionPosition();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ bool shouldPost;
+ Result<UniquePtr<mozInlineSpellStatus>, nsresult> res =
+ mozInlineSpellStatus::CreateForNavigation(
+ *this, aForceWordSpellCheck, aNewPositionOffset, currentAnchorNode,
+ currentAnchorOffset, mCurrentSelectionAnchorNode,
+ mCurrentSelectionOffset, &shouldPost);
+
+ if (NS_WARN_IF(res.isErr())) {
+ return res.unwrapErr();
+ }
+
+ if (shouldPost) {
+ rv = ScheduleSpellCheck(res.unwrap());
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozInlineSpellChecker::HandleEvent(Event* aEvent) {
+ WidgetEvent* widgetEvent = aEvent->WidgetEventPtr();
+ if (MOZ_UNLIKELY(!widgetEvent)) {
+ return NS_OK;
+ }
+
+ switch (widgetEvent->mMessage) {
+ case eBlur:
+ OnBlur(*aEvent);
+ return NS_OK;
+ case eMouseClick:
+ OnMouseClick(*aEvent);
+ return NS_OK;
+ case eKeyDown:
+ OnKeyDown(*aEvent);
+ return NS_OK;
+ default:
+ MOZ_ASSERT_UNREACHABLE("You must forgot to handle new event type");
+ return NS_OK;
+ }
+}
+
+void mozInlineSpellChecker::OnBlur(Event& aEvent) {
+ // force spellcheck on blur, for instance when tabbing out of a textbox
+ HandleNavigationEvent(true);
+}
+
+void mozInlineSpellChecker::OnMouseClick(Event& aMouseEvent) {
+ MouseEvent* mouseEvent = aMouseEvent.AsMouseEvent();
+ if (MOZ_UNLIKELY(!mouseEvent)) {
+ return;
+ }
+
+ // ignore any errors from HandleNavigationEvent as we don't want to prevent
+ // anyone else from seeing this event.
+ HandleNavigationEvent(mouseEvent->Button() != 0);
+}
+
+void mozInlineSpellChecker::OnKeyDown(Event& aKeyEvent) {
+ WidgetKeyboardEvent* widgetKeyboardEvent =
+ aKeyEvent.WidgetEventPtr()->AsKeyboardEvent();
+ if (MOZ_UNLIKELY(!widgetKeyboardEvent)) {
+ return;
+ }
+
+ // we only care about navigation keys that moved selection
+ switch (widgetKeyboardEvent->mKeyNameIndex) {
+ case KEY_NAME_INDEX_ArrowRight:
+ // XXX Does this work with RTL text?
+ HandleNavigationEvent(false, 1);
+ return;
+ case KEY_NAME_INDEX_ArrowLeft:
+ // XXX Does this work with RTL text?
+ HandleNavigationEvent(false, -1);
+ return;
+ case KEY_NAME_INDEX_ArrowUp:
+ case KEY_NAME_INDEX_ArrowDown:
+ case KEY_NAME_INDEX_Home:
+ case KEY_NAME_INDEX_End:
+ case KEY_NAME_INDEX_PageDown:
+ case KEY_NAME_INDEX_PageUp:
+ HandleNavigationEvent(true /* force a spelling correction */);
+ return;
+ default:
+ return;
+ }
+}
+
+// Used as the nsIEditorSpellCheck::UpdateCurrentDictionary callback.
+class UpdateCurrentDictionaryCallback final
+ : public nsIEditorSpellCheckCallback {
+ public:
+ NS_DECL_ISUPPORTS
+
+ explicit UpdateCurrentDictionaryCallback(mozInlineSpellChecker* aSpellChecker,
+ uint32_t aDisabledAsyncToken)
+ : mSpellChecker(aSpellChecker),
+ mDisabledAsyncToken(aDisabledAsyncToken) {}
+
+ NS_IMETHOD EditorSpellCheckDone() override {
+ // Ignore this callback if SetEnableRealTimeSpell(false) was called after
+ // the UpdateCurrentDictionary call that triggered it.
+ return mSpellChecker->GetDisabledAsyncToken() > mDisabledAsyncToken
+ ? NS_OK
+ : mSpellChecker->CurrentDictionaryUpdated();
+ }
+
+ private:
+ ~UpdateCurrentDictionaryCallback() {}
+
+ RefPtr<mozInlineSpellChecker> mSpellChecker;
+ uint32_t mDisabledAsyncToken;
+};
+NS_IMPL_ISUPPORTS(UpdateCurrentDictionaryCallback, nsIEditorSpellCheckCallback)
+
+NS_IMETHODIMP mozInlineSpellChecker::UpdateCurrentDictionary() {
+ // mSpellCheck is null and mPendingSpellCheck is nonnull while the spell
+ // checker is being initialized. Calling UpdateCurrentDictionary on
+ // mPendingSpellCheck simply queues the dictionary update after the init.
+ RefPtr<EditorSpellCheck> spellCheck =
+ mSpellCheck ? mSpellCheck : mPendingSpellCheck;
+ if (!spellCheck) {
+ return NS_OK;
+ }
+
+ RefPtr<UpdateCurrentDictionaryCallback> cb =
+ new UpdateCurrentDictionaryCallback(this, mDisabledAsyncToken);
+ NS_ENSURE_STATE(cb);
+ nsresult rv = spellCheck->UpdateCurrentDictionary(cb);
+ if (NS_FAILED(rv)) {
+ cb = nullptr;
+ return rv;
+ }
+ mNumPendingUpdateCurrentDictionary++;
+ ChangeNumPendingSpellChecks(1);
+
+ return NS_OK;
+}
+
+// Called when nsIEditorSpellCheck::UpdateCurrentDictionary completes.
+nsresult mozInlineSpellChecker::CurrentDictionaryUpdated() {
+ mNumPendingUpdateCurrentDictionary--;
+ MOZ_ASSERT(mNumPendingUpdateCurrentDictionary >= 0,
+ "CurrentDictionaryUpdated called without corresponding "
+ "UpdateCurrentDictionary call!");
+ ChangeNumPendingSpellChecks(-1);
+
+ nsresult rv = SpellCheckRange(nullptr);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+mozInlineSpellChecker::GetSpellCheckPending(bool* aPending) {
+ *aPending = mNumPendingSpellChecks > 0;
+ return NS_OK;
+}
diff --git a/extensions/spellcheck/src/mozInlineSpellChecker.h b/extensions/spellcheck/src/mozInlineSpellChecker.h
new file mode 100644
index 0000000000..0e304c93a2
--- /dev/null
+++ b/extensions/spellcheck/src/mozInlineSpellChecker.h
@@ -0,0 +1,338 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_mozInlineSpellChecker_h
+#define mozilla_mozInlineSpellChecker_h
+
+#include "nsCycleCollectionParticipant.h"
+#include "nsIDOMEventListener.h"
+#include "nsIEditorSpellCheck.h"
+#include "nsIInlineSpellChecker.h"
+#include "mozInlineSpellWordUtil.h"
+#include "mozilla/EditorDOMPoint.h"
+#include "mozilla/Result.h"
+#include "nsRange.h"
+#include "nsWeakReference.h"
+
+class InitEditorSpellCheckCallback;
+class mozInlineSpellChecker;
+class mozInlineSpellResume;
+class UpdateCurrentDictionaryCallback;
+
+namespace mozilla {
+class EditorBase;
+class EditorSpellCheck;
+enum class EditSubAction : int32_t;
+enum class JoinNodesDirection;
+
+namespace dom {
+class Event;
+} // namespace dom
+} // namespace mozilla
+
+class mozInlineSpellStatus {
+ public:
+ static mozilla::Result<mozilla::UniquePtr<mozInlineSpellStatus>, nsresult>
+ CreateForEditorChange(mozInlineSpellChecker& aSpellChecker,
+ mozilla::EditSubAction aEditSubAction,
+ nsINode* aAnchorNode, uint32_t aAnchorOffset,
+ nsINode* aPreviousNode, uint32_t aPreviousOffset,
+ nsINode* aStartNode, uint32_t aStartOffset,
+ nsINode* aEndNode, uint32_t aEndOffset);
+
+ static mozilla::Result<mozilla::UniquePtr<mozInlineSpellStatus>, nsresult>
+ CreateForNavigation(mozInlineSpellChecker& aSpellChecker, bool aForceCheck,
+ int32_t aNewPositionOffset, nsINode* aOldAnchorNode,
+ uint32_t aOldAnchorOffset, nsINode* aNewAnchorNode,
+ uint32_t aNewAnchorOffset, bool* aContinue);
+
+ static mozilla::UniquePtr<mozInlineSpellStatus> CreateForSelection(
+ mozInlineSpellChecker& aSpellChecker);
+
+ static mozilla::UniquePtr<mozInlineSpellStatus> CreateForRange(
+ mozInlineSpellChecker& aSpellChecker, nsRange* aRange);
+
+ nsresult FinishInitOnEvent(mozInlineSpellWordUtil& aWordUtil);
+
+ // Return true if we plan to spell-check everything
+ bool IsFullSpellCheck() const { return mOp == eOpChange && !mRange; }
+
+ const RefPtr<mozInlineSpellChecker> mSpellChecker;
+
+ enum Operation {
+ eOpChange, // for SpellCheckAfterEditorChange except
+ // deleteSelection
+ eOpChangeDelete, // for SpellCheckAfterEditorChange with
+ // deleteSelection
+ eOpNavigation, // for HandleNavigationEvent
+ eOpSelection, // re-check all misspelled words
+ eOpResume
+ };
+
+ // See `mOp`.
+ Operation GetOperation() const { return mOp; }
+
+ // Used for events where we have already computed the range to use. It can
+ // also be nullptr in these cases where we need to check the entire range.
+ RefPtr<nsRange> mRange;
+
+ // See `mCreatedRange`.
+ const nsRange* GetCreatedRange() const { return mCreatedRange; }
+
+ // See `mNoCheckRange`.
+ const nsRange* GetNoCheckRange() const { return mNoCheckRange; }
+
+ private:
+ // @param aSpellChecker must be non-nullptr.
+ // @param aOp see mOp.
+ // @param aRange see mRange.
+ // @param aCreatedRange see mCreatedRange.
+ // @param aAnchorRange see mAnchorRange.
+ // @param aForceNavigationWordCheck see mForceNavigationWordCheck.
+ // @param aNewNavigationPositionOffset see mNewNavigationPositionOffset.
+ explicit mozInlineSpellStatus(mozInlineSpellChecker* aSpellChecker,
+ Operation aOp, RefPtr<nsRange>&& aRange,
+ RefPtr<nsRange>&& aCreatedRange,
+ RefPtr<nsRange>&& aAnchorRange,
+ bool aForceNavigationWordCheck,
+ int32_t aNewNavigationPositionOffset);
+
+ // For resuming a previously started check.
+ const Operation mOp;
+
+ //
+ // If we happen to know something was inserted, this is that range.
+ // Can be nullptr (this only allows an optimization, so not setting doesn't
+ // hurt)
+ const RefPtr<const nsRange> mCreatedRange;
+
+ // Contains the range computed for the current word. Can be nullptr.
+ RefPtr<nsRange> mNoCheckRange;
+
+ // Indicates the position of the cursor for the event (so we can compute
+ // mNoCheckRange). It can be nullptr if we don't care about the cursor
+ // position (such as for the intial check of everything).
+ //
+ // For mOp == eOpNavigation, this is the NEW position of the cursor
+ const RefPtr<const nsRange> mAnchorRange;
+
+ // -----
+ // The following members are only for navigation events and are only
+ // stored for FinishNavigationEvent to initialize the other members.
+ // -----
+
+ // this is the OLD position of the cursor
+ RefPtr<nsRange> mOldNavigationAnchorRange;
+
+ // Set when we should force checking the current word. See
+ // mozInlineSpellChecker::HandleNavigationEvent for a description of why we
+ // have this.
+ const bool mForceNavigationWordCheck;
+
+ // Contains the offset passed in to HandleNavigationEvent
+ const int32_t mNewNavigationPositionOffset;
+
+ nsresult FinishNavigationEvent(mozInlineSpellWordUtil& aWordUtil);
+
+ nsresult FillNoCheckRangeFromAnchor(mozInlineSpellWordUtil& aWordUtil);
+
+ mozilla::dom::Document* GetDocument() const;
+ static already_AddRefed<nsRange> PositionToCollapsedRange(nsINode* aNode,
+ uint32_t aOffset);
+};
+
+class mozInlineSpellChecker final : public nsIInlineSpellChecker,
+ public nsIDOMEventListener,
+ public nsSupportsWeakReference {
+ private:
+ friend class mozInlineSpellStatus;
+ friend class InitEditorSpellCheckCallback;
+ friend class UpdateCurrentDictionaryCallback;
+ friend class AutoChangeNumPendingSpellChecks;
+
+ // Access with CanEnableInlineSpellChecking
+ enum SpellCheckingState {
+ SpellCheck_Uninitialized = -1,
+ SpellCheck_NotAvailable = 0,
+ SpellCheck_Available = 1
+ };
+ static SpellCheckingState gCanEnableSpellChecking;
+
+ RefPtr<mozilla::EditorBase> mEditorBase;
+ RefPtr<mozilla::EditorSpellCheck> mSpellCheck;
+ RefPtr<mozilla::EditorSpellCheck> mPendingSpellCheck;
+
+ int32_t mNumWordsInSpellSelection;
+ const int32_t mMaxNumWordsInSpellSelection;
+
+ // we need to keep track of the current text position in the document
+ // so we can spell check the old word when the user clicks around the
+ // document.
+ nsCOMPtr<nsINode> mCurrentSelectionAnchorNode;
+ uint32_t mCurrentSelectionOffset;
+
+ // Tracks the number of pending spell checks *and* async operations that may
+ // lead to spell checks, like updating the current dictionary. This is
+ // necessary so that observers can know when to wait for spell check to
+ // complete.
+ int32_t mNumPendingSpellChecks;
+
+ // The number of calls to UpdateCurrentDictionary that haven't finished yet.
+ int32_t mNumPendingUpdateCurrentDictionary;
+
+ // This number is incremented each time the spell checker is disabled so that
+ // pending scheduled spell checks and UpdateCurrentDictionary calls can be
+ // ignored when they finish.
+ uint32_t mDisabledAsyncToken;
+
+ // When mPendingSpellCheck is non-null, this is the callback passed when
+ // it was initialized.
+ RefPtr<InitEditorSpellCheckCallback> mPendingInitEditorSpellCheckCallback;
+
+ // Set when we have spellchecked after the last edit operation. See the
+ // commment at the top of the .cpp file for more info.
+ bool mNeedsCheckAfterNavigation;
+
+ // Set when we have a pending mozInlineSpellResume which will check
+ // the whole document.
+ bool mFullSpellCheckScheduled;
+
+ // Set to true when this instance needs to listen to edit actions of
+ // the editor.
+ bool mIsListeningToEditSubActions;
+
+ class SpellCheckerSlice;
+
+ public:
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_NSIINLINESPELLCHECKER
+ NS_DECL_NSIDOMEVENTLISTENER
+ NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(mozInlineSpellChecker,
+ nsIDOMEventListener)
+
+ mozilla::EditorSpellCheck* GetEditorSpellCheck();
+
+ // See `mDisabledAsyncToken`.
+ uint32_t GetDisabledAsyncToken() const { return mDisabledAsyncToken; }
+
+ // returns true if there are any spell checking dictionaries available
+ static bool CanEnableInlineSpellChecking();
+ // update the cached value whenever the list of available dictionaries changes
+ static void UpdateCanEnableInlineSpellChecking();
+
+ mozInlineSpellChecker();
+
+ // spell checks all of the words between two nodes
+ nsresult SpellCheckBetweenNodes(nsINode* aStartNode, int32_t aStartOffset,
+ nsINode* aEndNode, int32_t aEndOffset);
+
+ // examines the dom node in question and returns true if the inline spell
+ // checker should skip the node (i.e. the text is inside of a block quote
+ // or an e-mail signature...)
+ static bool ShouldSpellCheckNode(mozilla::EditorBase* aEditorBase,
+ nsINode* aNode);
+
+ // spell check the text contained within aRange, potentially scheduling
+ // another check in the future if the time threshold is reached
+ nsresult ScheduleSpellCheck(
+ mozilla::UniquePtr<mozInlineSpellStatus>&& aStatus);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY nsresult
+ DoSpellCheckSelection(mozInlineSpellWordUtil& aWordUtil,
+ mozilla::dom::Selection* aSpellCheckSelection);
+
+ nsresult DoSpellCheck(mozInlineSpellWordUtil& aWordUtil,
+ mozilla::dom::Selection* aSpellCheckSelection,
+ const mozilla::UniquePtr<mozInlineSpellStatus>& aStatus,
+ bool* aDoneChecking);
+
+ // helper routine to determine if a point is inside of the passed in
+ // selection.
+ static nsresult IsPointInSelection(mozilla::dom::Selection& aSelection,
+ nsINode* aNode, uint32_t aOffset,
+ nsRange** aRange);
+
+ nsresult CleanupRangesInSelection(mozilla::dom::Selection* aSelection);
+
+ /**
+ * @param aRange needs to be kept alive by the caller.
+ */
+ // TODO: annotate with `MOZ_CAN_RUN_SCRIPT` instead
+ // (https://bugzilla.mozilla.org/show_bug.cgi?id=1620540).
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY nsresult
+ RemoveRange(mozilla::dom::Selection* aSpellCheckSelection, nsRange* aRange);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY nsresult
+ AddRange(mozilla::dom::Selection* aSpellCheckSelection, nsRange* aRange);
+ bool IsSpellCheckSelectionFull() const {
+ return mNumWordsInSpellSelection >= mMaxNumWordsInSpellSelection;
+ }
+
+ nsresult MakeSpellCheckRange(nsINode* aStartNode, int32_t aStartOffset,
+ nsINode* aEndNode, int32_t aEndOffset,
+ nsRange** aRange) const;
+
+ // DOM and editor event registration helper routines
+ nsresult RegisterEventListeners();
+ nsresult UnregisterEventListeners();
+ nsresult HandleNavigationEvent(bool aForceWordSpellCheck,
+ int32_t aNewPositionOffset = 0);
+
+ already_AddRefed<mozilla::dom::Selection> GetSpellCheckSelection();
+ nsresult SaveCurrentSelectionPosition();
+
+ nsresult ResumeCheck(mozilla::UniquePtr<mozInlineSpellStatus>&& aStatus);
+
+ nsresult SpellCheckAfterEditorChange(mozilla::EditSubAction aEditSubAction,
+ mozilla::dom::Selection& aSelection,
+ nsINode* aPreviousSelectedNode,
+ uint32_t aPreviousSelectedOffset,
+ nsINode* aStartNode,
+ uint32_t aStartOffset, nsINode* aEndNode,
+ uint32_t aEndOffset);
+
+ protected:
+ virtual ~mozInlineSpellChecker();
+
+ struct CompareRangeAndNodeOffsetRange;
+
+ // Ensures that all misspelled words have corresponding ranges in
+ // aSpellCheckerSelection. Reuses those of the old ranges, which still
+ // correspond to misspelled words and adds new ranges for those misspelled
+ // words for which no corresponding old range exists.
+ // Removes the old ranges which aren't reused from aSpellCheckerSelection.
+ //
+ // @param aNodeOffsetRangesForWords corresponds to aIsMisspelled.
+ // `aNodeOffsetRangesForWords.Length() ==
+ // aIsMisspelled.Length()`.
+ // @param aOldRangesForSomeWords ranges belonging to aSpellCheckerSelection.
+ // Its length may differ from
+ // `aNodeOffsetRangesForWords.Length()`.
+ // @param aIsMisspelled indicates which words are misspelled.
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY void UpdateRangesForMisspelledWords(
+ const nsTArray<NodeOffsetRange>& aNodeOffsetRangesForWords,
+ const nsTArray<RefPtr<nsRange>>& aOldRangesForSomeWords,
+ const nsTArray<bool>& aIsMisspelled,
+ mozilla::dom::Selection& aSpellCheckerSelection);
+
+ // called when async nsIEditorSpellCheck methods complete
+ nsresult EditorSpellCheckInited();
+ nsresult CurrentDictionaryUpdated();
+
+ // track the number of pending spell checks and async operations that may lead
+ // to spell checks, notifying observers accordingly
+ void ChangeNumPendingSpellChecks(int32_t aDelta,
+ mozilla::EditorBase* aEditorBase = nullptr);
+ void NotifyObservers(const char* aTopic, mozilla::EditorBase* aEditorBase);
+
+ void StartToListenToEditSubActions() { mIsListeningToEditSubActions = true; }
+ void EndListeningToEditSubActions() { mIsListeningToEditSubActions = false; }
+
+ void OnBlur(mozilla::dom::Event& aEvent);
+ void OnMouseClick(mozilla::dom::Event& aMouseEvent);
+ void OnKeyDown(mozilla::dom::Event& aKeyEvent);
+};
+
+#endif // #ifndef mozilla_mozInlineSpellChecker_h
diff --git a/extensions/spellcheck/src/mozInlineSpellWordUtil.cpp b/extensions/spellcheck/src/mozInlineSpellWordUtil.cpp
new file mode 100644
index 0000000000..731059f04b
--- /dev/null
+++ b/extensions/spellcheck/src/mozInlineSpellWordUtil.cpp
@@ -0,0 +1,1174 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozInlineSpellWordUtil.h"
+
+#include <algorithm>
+#include <utility>
+
+#include "mozilla/BinarySearch.h"
+#include "mozilla/EditorBase.h"
+#include "mozilla/HTMLEditor.h"
+#include "mozilla/Logging.h"
+#include "mozilla/dom/Element.h"
+
+#include "nsDebug.h"
+#include "nsAtom.h"
+#include "nsComponentManagerUtils.h"
+#include "nsUnicodeProperties.h"
+#include "nsServiceManagerUtils.h"
+#include "nsIContent.h"
+#include "nsTextFragment.h"
+#include "nsRange.h"
+#include "nsContentUtils.h"
+#include "nsIFrame.h"
+
+using namespace mozilla;
+
+static LazyLogModule sInlineSpellWordUtilLog{"InlineSpellWordUtil"};
+
+// IsIgnorableCharacter
+//
+// These characters are ones that we should ignore in input.
+
+inline bool IsIgnorableCharacter(char ch) {
+ return (ch == static_cast<char>(0xAD)); // SOFT HYPHEN
+}
+
+inline bool IsIgnorableCharacter(char16_t ch) {
+ return (ch == 0xAD || // SOFT HYPHEN
+ ch == 0x1806); // MONGOLIAN TODO SOFT HYPHEN
+}
+
+// IsConditionalPunctuation
+//
+// Some characters (like apostrophes) require characters on each side to be
+// part of a word, and are otherwise punctuation.
+
+inline bool IsConditionalPunctuation(char ch) {
+ return (ch == '\'' || // RIGHT SINGLE QUOTATION MARK
+ ch == static_cast<char>(0xB7)); // MIDDLE DOT
+}
+
+inline bool IsConditionalPunctuation(char16_t ch) {
+ return (ch == '\'' || ch == 0x2019 || // RIGHT SINGLE QUOTATION MARK
+ ch == 0x00B7); // MIDDLE DOT
+}
+
+static bool IsAmbiguousDOMWordSeprator(char16_t ch) {
+ // This class may be CHAR_CLASS_SEPARATOR, but it depends on context.
+ return (ch == '@' || ch == ':' || ch == '.' || ch == '/' || ch == '-' ||
+ IsConditionalPunctuation(ch));
+}
+
+static bool IsAmbiguousDOMWordSeprator(char ch) {
+ // This class may be CHAR_CLASS_SEPARATOR, but it depends on context.
+ return IsAmbiguousDOMWordSeprator(static_cast<char16_t>(ch));
+}
+
+// IsDOMWordSeparator
+//
+// Determines if the given character should be considered as a DOM Word
+// separator. Basically, this is whitespace, although it could also have
+// certain punctuation that we know ALWAYS breaks words. This is important.
+// For example, we can't have any punctuation that could appear in a URL
+// or email address in this, because those need to always fit into a single
+// DOM word.
+
+static bool IsDOMWordSeparator(char ch) {
+ // simple spaces or no-break space
+ return (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r' ||
+ ch == static_cast<char>(0xA0));
+}
+
+static bool IsDOMWordSeparator(char16_t ch) {
+ // simple spaces
+ if (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r') return true;
+
+ // complex spaces - check only if char isn't ASCII (uncommon)
+ if (ch >= 0xA0 && (ch == 0x00A0 || // NO-BREAK SPACE
+ ch == 0x2002 || // EN SPACE
+ ch == 0x2003 || // EM SPACE
+ ch == 0x2009 || // THIN SPACE
+ ch == 0x3000)) // IDEOGRAPHIC SPACE
+ return true;
+
+ // otherwise not a space
+ return false;
+}
+
+bool NodeOffset::operator==(
+ const mozilla::RangeBoundary& aRangeBoundary) const {
+ if (aRangeBoundary.Container() != mNode) {
+ return false;
+ }
+
+ const Maybe<uint32_t> rangeBoundaryOffset =
+ aRangeBoundary.Offset(RangeBoundary::OffsetFilter::kValidOffsets);
+
+ MOZ_ASSERT(mOffset >= 0);
+ return rangeBoundaryOffset &&
+ (*rangeBoundaryOffset == static_cast<uint32_t>(mOffset));
+}
+
+bool NodeOffsetRange::operator==(const nsRange& aRange) const {
+ return mBegin == aRange.StartRef() && mEnd == aRange.EndRef();
+}
+
+// static
+Maybe<mozInlineSpellWordUtil> mozInlineSpellWordUtil::Create(
+ const EditorBase& aEditorBase) {
+ dom::Document* document = aEditorBase.GetDocument();
+ if (NS_WARN_IF(!document)) {
+ return Nothing();
+ }
+
+ const bool isContentEditableOrDesignMode = aEditorBase.IsHTMLEditor();
+
+ // Find the root node for the editor. For contenteditable the mRootNode could
+ // change to shadow root if the begin and end are inside the shadowDOM.
+ nsINode* rootNode = aEditorBase.GetRoot();
+ if (NS_WARN_IF(!rootNode)) {
+ return Nothing();
+ }
+
+ mozInlineSpellWordUtil util{*document, isContentEditableOrDesignMode,
+ *rootNode};
+ return Some(std::move(util));
+}
+
+static inline bool IsSpellCheckingTextNode(nsINode* aNode) {
+ nsIContent* parent = aNode->GetParent();
+ if (parent &&
+ parent->IsAnyOfHTMLElements(nsGkAtoms::script, nsGkAtoms::style))
+ return false;
+ return aNode->IsText();
+}
+
+typedef void (*OnLeaveNodeFunPtr)(nsINode* aNode, void* aClosure);
+
+// Find the next node in the DOM tree in preorder.
+// Calls OnLeaveNodeFunPtr when the traversal leaves a node, which is
+// why we can't just use GetNextNode here, sadly.
+static nsINode* FindNextNode(nsINode* aNode, const nsINode* aRoot,
+ OnLeaveNodeFunPtr aOnLeaveNode, void* aClosure) {
+ MOZ_ASSERT(aNode, "Null starting node?");
+
+ nsINode* next = aNode->GetFirstChild();
+ if (next) return next;
+
+ // Don't look at siblings or otherwise outside of aRoot
+ if (aNode == aRoot) return nullptr;
+
+ next = aNode->GetNextSibling();
+ if (next) return next;
+
+ // Go up
+ for (;;) {
+ if (aOnLeaveNode) {
+ aOnLeaveNode(aNode, aClosure);
+ }
+
+ next = aNode->GetParent();
+ if (next == aRoot || !next) return nullptr;
+ aNode = next;
+
+ next = aNode->GetNextSibling();
+ if (next) return next;
+ }
+}
+
+// aNode is not a text node. Find the first text node starting at aNode/aOffset
+// in a preorder DOM traversal.
+static nsINode* FindNextTextNode(nsINode* aNode, int32_t aOffset,
+ const nsINode* aRoot) {
+ MOZ_ASSERT(aNode, "Null starting node?");
+ MOZ_ASSERT(!IsSpellCheckingTextNode(aNode),
+ "FindNextTextNode should start with a non-text node");
+
+ nsINode* checkNode;
+ // Need to start at the aOffset'th child
+ nsIContent* child = aNode->GetChildAt_Deprecated(aOffset);
+
+ if (child) {
+ checkNode = child;
+ } else {
+ // aOffset was beyond the end of the child list.
+ // goto next node after the last descendant of aNode in
+ // a preorder DOM traversal.
+ checkNode = aNode->GetNextNonChildNode(aRoot);
+ }
+
+ while (checkNode && !IsSpellCheckingTextNode(checkNode)) {
+ checkNode = checkNode->GetNextNode(aRoot);
+ }
+ return checkNode;
+}
+
+// mozInlineSpellWordUtil::SetPositionAndEnd
+//
+// We have two ranges "hard" and "soft". The hard boundary is simply
+// the scope of the root node. The soft boundary is that which is set
+// by the caller of this class by calling this function. If this function is
+// not called, the soft boundary is the same as the hard boundary.
+//
+// When we reach the soft boundary (mSoftText.GetEnd()), we keep
+// going until we reach the end of a word. This allows the caller to set the
+// end of the range to anything, and we will always check whole multiples of
+// words. When we reach the hard boundary we stop no matter what.
+//
+// There is no beginning soft boundary. This is because we only go to the
+// previous node once, when finding the previous word boundary in
+// SetPosition(). You might think of the soft boundary as being this initial
+// position.
+
+nsresult mozInlineSpellWordUtil::SetPositionAndEnd(nsINode* aPositionNode,
+ int32_t aPositionOffset,
+ nsINode* aEndNode,
+ int32_t aEndOffset) {
+ MOZ_LOG(sInlineSpellWordUtilLog, LogLevel::Debug,
+ ("%s: pos=(%p, %i), end=(%p, %i)", __FUNCTION__, aPositionNode,
+ aPositionOffset, aEndNode, aEndOffset));
+
+ MOZ_ASSERT(aPositionNode, "Null begin node?");
+ MOZ_ASSERT(aEndNode, "Null end node?");
+
+ MOZ_ASSERT(mRootNode, "Not initialized");
+
+ // Find a appropriate root if we are dealing with contenteditable nodes which
+ // are in the shadow DOM.
+ if (mIsContentEditableOrDesignMode) {
+ nsINode* rootNode = aPositionNode->SubtreeRoot();
+ if (rootNode != aEndNode->SubtreeRoot()) {
+ return NS_ERROR_FAILURE;
+ }
+
+ if (mozilla::dom::ShadowRoot::FromNode(rootNode)) {
+ mRootNode = rootNode;
+ }
+ }
+
+ mSoftText.Invalidate();
+
+ if (!IsSpellCheckingTextNode(aPositionNode)) {
+ // Start at the start of the first text node after aNode/aOffset.
+ aPositionNode = FindNextTextNode(aPositionNode, aPositionOffset, mRootNode);
+ aPositionOffset = 0;
+ }
+ NodeOffset softBegin = NodeOffset(aPositionNode, aPositionOffset);
+
+ if (!IsSpellCheckingTextNode(aEndNode)) {
+ // End at the start of the first text node after aEndNode/aEndOffset.
+ aEndNode = FindNextTextNode(aEndNode, aEndOffset, mRootNode);
+ aEndOffset = 0;
+ }
+ NodeOffset softEnd = NodeOffset(aEndNode, aEndOffset);
+
+ nsresult rv = EnsureWords(std::move(softBegin), std::move(softEnd));
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ int32_t textOffset = MapDOMPositionToSoftTextOffset(mSoftText.GetBegin());
+ if (textOffset < 0) {
+ return NS_OK;
+ }
+
+ mNextWordIndex = FindRealWordContaining(textOffset, HINT_END, true);
+ return NS_OK;
+}
+
+nsresult mozInlineSpellWordUtil::EnsureWords(NodeOffset aSoftBegin,
+ NodeOffset aSoftEnd) {
+ if (mSoftText.mIsValid) return NS_OK;
+ mSoftText.AdjustBeginAndBuildText(std::move(aSoftBegin), std::move(aSoftEnd),
+ mRootNode);
+
+ mRealWords.Clear();
+ Result<RealWords, nsresult> realWords = BuildRealWords();
+ if (realWords.isErr()) {
+ return realWords.unwrapErr();
+ }
+
+ mRealWords = realWords.unwrap();
+ mSoftText.mIsValid = true;
+ return NS_OK;
+}
+
+nsresult mozInlineSpellWordUtil::MakeRangeForWord(const RealWord& aWord,
+ nsRange** aRange) const {
+ NodeOffset begin =
+ MapSoftTextOffsetToDOMPosition(aWord.mSoftTextOffset, HINT_BEGIN);
+ NodeOffset end = MapSoftTextOffsetToDOMPosition(aWord.EndOffset(), HINT_END);
+ return MakeRange(begin, end, aRange);
+}
+void mozInlineSpellWordUtil::MakeNodeOffsetRangeForWord(
+ const RealWord& aWord, NodeOffsetRange* aNodeOffsetRange) {
+ NodeOffset begin =
+ MapSoftTextOffsetToDOMPosition(aWord.mSoftTextOffset, HINT_BEGIN);
+ NodeOffset end = MapSoftTextOffsetToDOMPosition(aWord.EndOffset(), HINT_END);
+ *aNodeOffsetRange = NodeOffsetRange(begin, end);
+}
+
+// mozInlineSpellWordUtil::GetRangeForWord
+
+nsresult mozInlineSpellWordUtil::GetRangeForWord(nsINode* aWordNode,
+ int32_t aWordOffset,
+ nsRange** aRange) {
+ // Set our soft end and start
+ NodeOffset pt(aWordNode, aWordOffset);
+
+ if (!mSoftText.mIsValid || pt != mSoftText.GetBegin() ||
+ pt != mSoftText.GetEnd()) {
+ mSoftText.Invalidate();
+ NodeOffset softBegin = pt;
+ NodeOffset softEnd = pt;
+ nsresult rv = EnsureWords(std::move(softBegin), std::move(softEnd));
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ }
+
+ int32_t offset = MapDOMPositionToSoftTextOffset(pt);
+ if (offset < 0) return MakeRange(pt, pt, aRange);
+ int32_t wordIndex = FindRealWordContaining(offset, HINT_BEGIN, false);
+ if (wordIndex < 0) return MakeRange(pt, pt, aRange);
+ return MakeRangeForWord(mRealWords[wordIndex], aRange);
+}
+
+// This is to fix characters that the spellchecker may not like
+static void NormalizeWord(const nsAString& aInput, int32_t aPos, int32_t aLen,
+ nsAString& aOutput) {
+ aOutput.Truncate();
+ for (int32_t i = 0; i < aLen; i++) {
+ char16_t ch = aInput.CharAt(i + aPos);
+
+ // remove ignorable characters from the word
+ if (IsIgnorableCharacter(ch)) continue;
+
+ // the spellchecker doesn't handle curly apostrophes in all languages
+ if (ch == 0x2019) { // RIGHT SINGLE QUOTATION MARK
+ ch = '\'';
+ }
+
+ aOutput.Append(ch);
+ }
+}
+
+// mozInlineSpellWordUtil::GetNextWord
+//
+// FIXME-optimization: we shouldn't have to generate a range every single
+// time. It would be better if the inline spellchecker didn't require a
+// range unless the word was misspelled. This may or may not be possible.
+
+bool mozInlineSpellWordUtil::GetNextWord(Word& aWord) {
+ MOZ_LOG(sInlineSpellWordUtilLog, LogLevel::Debug,
+ ("%s: mNextWordIndex=%d", __FUNCTION__, mNextWordIndex));
+
+ if (mNextWordIndex < 0 || mNextWordIndex >= int32_t(mRealWords.Length())) {
+ mNextWordIndex = -1;
+ aWord.mSkipChecking = true;
+ return false;
+ }
+
+ const RealWord& realWord = mRealWords[mNextWordIndex];
+ MakeNodeOffsetRangeForWord(realWord, &aWord.mNodeOffsetRange);
+ ++mNextWordIndex;
+ aWord.mSkipChecking = !realWord.mCheckableWord;
+ ::NormalizeWord(mSoftText.GetValue(), realWord.mSoftTextOffset,
+ realWord.mLength, aWord.mText);
+
+ MOZ_LOG(sInlineSpellWordUtilLog, LogLevel::Debug,
+ ("%s: returning: %s (skip=%d)", __FUNCTION__,
+ NS_ConvertUTF16toUTF8(aWord.mText).get(), aWord.mSkipChecking));
+
+ return true;
+}
+
+// mozInlineSpellWordUtil::MakeRange
+//
+// Convenience function for creating a range over the current document.
+
+nsresult mozInlineSpellWordUtil::MakeRange(NodeOffset aBegin, NodeOffset aEnd,
+ nsRange** aRange) const {
+ NS_ENSURE_ARG_POINTER(aBegin.mNode);
+ if (!mDocument) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ ErrorResult error;
+ RefPtr<nsRange> range = nsRange::Create(aBegin.mNode, aBegin.mOffset,
+ aEnd.mNode, aEnd.mOffset, error);
+ if (NS_WARN_IF(error.Failed())) {
+ return error.StealNSResult();
+ }
+ MOZ_ASSERT(range);
+ range.forget(aRange);
+ return NS_OK;
+}
+
+// static
+already_AddRefed<nsRange> mozInlineSpellWordUtil::MakeRange(
+ const NodeOffsetRange& aRange) {
+ IgnoredErrorResult ignoredError;
+ RefPtr<nsRange> range =
+ nsRange::Create(aRange.Begin().Node(), aRange.Begin().Offset(),
+ aRange.End().Node(), aRange.End().Offset(), ignoredError);
+ NS_WARNING_ASSERTION(!ignoredError.Failed(), "Creating a range failed");
+ return range.forget();
+}
+
+/*********** Word Splitting ************/
+
+// classifies a given character in the DOM word
+enum CharClass {
+ CHAR_CLASS_WORD,
+ CHAR_CLASS_SEPARATOR,
+ CHAR_CLASS_END_OF_INPUT
+};
+
+// Encapsulates DOM-word to real-word splitting
+template <class T>
+struct MOZ_STACK_CLASS WordSplitState {
+ const T& mDOMWordText;
+ int32_t mDOMWordOffset;
+ CharClass mCurCharClass;
+
+ explicit WordSplitState(const T& aString)
+ : mDOMWordText(aString),
+ mDOMWordOffset(0),
+ mCurCharClass(CHAR_CLASS_END_OF_INPUT) {}
+
+ CharClass ClassifyCharacter(int32_t aIndex, bool aRecurse) const;
+ void Advance();
+ void AdvanceThroughSeparators();
+ void AdvanceThroughWord();
+
+ // Finds special words like email addresses and URLs that may start at the
+ // current position, and returns their length, or 0 if not found. This allows
+ // arbitrary word breaking rules to be used for these special entities, as
+ // long as they can not contain whitespace.
+ bool IsSpecialWord() const;
+
+ // Similar to IsSpecialWord except that this takes a split word as
+ // input. This checks for things that do not require special word-breaking
+ // rules.
+ bool ShouldSkipWord(int32_t aStart, int32_t aLength) const;
+
+ // Finds the last sequence of DOM word separators before aBeforeOffset and
+ // returns the offset to its first element.
+ Maybe<int32_t> FindOffsetOfLastDOMWordSeparatorSequence(
+ int32_t aBeforeOffset) const;
+
+ char16_t GetUnicharAt(int32_t aIndex) const;
+};
+
+// WordSplitState::ClassifyCharacter
+template <class T>
+CharClass WordSplitState<T>::ClassifyCharacter(int32_t aIndex,
+ bool aRecurse) const {
+ MOZ_ASSERT(aIndex >= 0 && aIndex <= int32_t(mDOMWordText.Length()),
+ "Index out of range");
+ if (aIndex == int32_t(mDOMWordText.Length())) return CHAR_CLASS_SEPARATOR;
+
+ // this will classify the character, we want to treat "ignorable" characters
+ // such as soft hyphens, and also ZWJ and ZWNJ as word characters.
+ nsUGenCategory charCategory =
+ mozilla::unicode::GetGenCategory(GetUnicharAt(aIndex));
+ if (charCategory == nsUGenCategory::kLetter ||
+ IsIgnorableCharacter(mDOMWordText[aIndex]) ||
+ mDOMWordText[aIndex] == 0x200C /* ZWNJ */ ||
+ mDOMWordText[aIndex] == 0x200D /* ZWJ */)
+ return CHAR_CLASS_WORD;
+
+ // If conditional punctuation is surrounded immediately on both sides by word
+ // characters it also counts as a word character.
+ if (IsConditionalPunctuation(mDOMWordText[aIndex])) {
+ if (!aRecurse) {
+ // not allowed to look around, this punctuation counts like a separator
+ return CHAR_CLASS_SEPARATOR;
+ }
+
+ // check the left-hand character
+ if (aIndex == 0) return CHAR_CLASS_SEPARATOR;
+ if (ClassifyCharacter(aIndex - 1, false) != CHAR_CLASS_WORD)
+ return CHAR_CLASS_SEPARATOR;
+ // If the previous charatcer is a word-char, make sure that it's not a
+ // special dot character.
+ if (mDOMWordText[aIndex - 1] == '.') return CHAR_CLASS_SEPARATOR;
+
+ // now we know left char is a word-char, check the right-hand character
+ if (aIndex == int32_t(mDOMWordText.Length() - 1)) {
+ return CHAR_CLASS_SEPARATOR;
+ }
+
+ if (ClassifyCharacter(aIndex + 1, false) != CHAR_CLASS_WORD)
+ return CHAR_CLASS_SEPARATOR;
+ // If the next charatcer is a word-char, make sure that it's not a
+ // special dot character.
+ if (mDOMWordText[aIndex + 1] == '.') return CHAR_CLASS_SEPARATOR;
+
+ // char on either side is a word, this counts as a word
+ return CHAR_CLASS_WORD;
+ }
+
+ // The dot character, if appearing at the end of a word, should
+ // be considered part of that word. Example: "etc.", or
+ // abbreviations
+ if (aIndex > 0 && mDOMWordText[aIndex] == '.' &&
+ mDOMWordText[aIndex - 1] != '.' &&
+ ClassifyCharacter(aIndex - 1, false) != CHAR_CLASS_WORD) {
+ return CHAR_CLASS_WORD;
+ }
+
+ // all other punctuation
+ if (charCategory == nsUGenCategory::kSeparator ||
+ charCategory == nsUGenCategory::kOther ||
+ charCategory == nsUGenCategory::kPunctuation ||
+ charCategory == nsUGenCategory::kSymbol) {
+ // Don't break on hyphens, as hunspell handles them on its own.
+ if (aIndex > 0 && mDOMWordText[aIndex] == '-' &&
+ mDOMWordText[aIndex - 1] != '-' &&
+ ClassifyCharacter(aIndex - 1, false) == CHAR_CLASS_WORD) {
+ // A hyphen is only meaningful as a separator inside a word
+ // if the previous and next characters are a word character.
+ if (aIndex == int32_t(mDOMWordText.Length()) - 1)
+ return CHAR_CLASS_SEPARATOR;
+ if (mDOMWordText[aIndex + 1] != '.' &&
+ ClassifyCharacter(aIndex + 1, false) == CHAR_CLASS_WORD)
+ return CHAR_CLASS_WORD;
+ }
+ return CHAR_CLASS_SEPARATOR;
+ }
+
+ // any other character counts as a word
+ return CHAR_CLASS_WORD;
+}
+
+// WordSplitState::Advance
+template <class T>
+void WordSplitState<T>::Advance() {
+ MOZ_ASSERT(mDOMWordOffset >= 0, "Negative word index");
+ MOZ_ASSERT(mDOMWordOffset < (int32_t)mDOMWordText.Length(),
+ "Length beyond end");
+
+ mDOMWordOffset++;
+ if (mDOMWordOffset >= (int32_t)mDOMWordText.Length())
+ mCurCharClass = CHAR_CLASS_END_OF_INPUT;
+ else
+ mCurCharClass = ClassifyCharacter(mDOMWordOffset, true);
+}
+
+// WordSplitState::AdvanceThroughSeparators
+template <class T>
+void WordSplitState<T>::AdvanceThroughSeparators() {
+ while (mCurCharClass == CHAR_CLASS_SEPARATOR) Advance();
+}
+
+// WordSplitState::AdvanceThroughWord
+template <class T>
+void WordSplitState<T>::AdvanceThroughWord() {
+ while (mCurCharClass == CHAR_CLASS_WORD) Advance();
+}
+
+// WordSplitState::IsSpecialWord
+template <class T>
+bool WordSplitState<T>::IsSpecialWord() const {
+ // Search for email addresses. We simply define these as any sequence of
+ // characters with an '@' character in the middle. The DOM word is already
+ // split on whitepace, so we know that everything to the end is the address
+ int32_t firstColon = -1;
+ for (int32_t i = mDOMWordOffset; i < int32_t(mDOMWordText.Length()); i++) {
+ if (mDOMWordText[i] == '@') {
+ // only accept this if there are unambiguous word characters (don't bother
+ // recursing to disambiguate apostrophes) on each side. This prevents
+ // classifying, e.g. "@home" as an email address
+
+ // Use this condition to only accept words with '@' in the middle of
+ // them. It works, but the inlinespellcker doesn't like this. The problem
+ // is that you type "fhsgfh@" that's a misspelled word followed by a
+ // symbol, but when you type another letter "fhsgfh@g" that first word
+ // need to be unmarked misspelled. It doesn't do this. it only checks the
+ // current position for potentially removing a spelling range.
+ if (i > 0 && ClassifyCharacter(i - 1, false) == CHAR_CLASS_WORD &&
+ i < (int32_t)mDOMWordText.Length() - 1 &&
+ ClassifyCharacter(i + 1, false) == CHAR_CLASS_WORD) {
+ return true;
+ }
+ } else if (mDOMWordText[i] == ':' && firstColon < 0) {
+ firstColon = i;
+
+ // If the first colon is followed by a slash, consider it a URL
+ // This will catch things like asdf://foo.com
+ if (firstColon < (int32_t)mDOMWordText.Length() - 1 &&
+ mDOMWordText[firstColon + 1] == '/') {
+ return true;
+ }
+ }
+ }
+
+ // Check the text before the first colon against some known protocols. It
+ // is impossible to check against all protocols, especially since you can
+ // plug in new protocols. We also don't want to waste time here checking
+ // against a lot of obscure protocols.
+ if (firstColon > mDOMWordOffset) {
+ nsString protocol(
+ Substring(mDOMWordText, mDOMWordOffset, firstColon - mDOMWordOffset));
+ if (protocol.EqualsIgnoreCase("http") ||
+ protocol.EqualsIgnoreCase("https") ||
+ protocol.EqualsIgnoreCase("news") ||
+ protocol.EqualsIgnoreCase("file") ||
+ protocol.EqualsIgnoreCase("javascript") ||
+ protocol.EqualsIgnoreCase("data") || protocol.EqualsIgnoreCase("ftp")) {
+ return true;
+ }
+ }
+
+ // not anything special
+ return false;
+}
+
+// WordSplitState::ShouldSkipWord
+template <class T>
+bool WordSplitState<T>::ShouldSkipWord(int32_t aStart, int32_t aLength) const {
+ int32_t last = aStart + aLength;
+
+ // check to see if the word contains a digit
+ for (int32_t i = aStart; i < last; i++) {
+ if (mozilla::unicode::GetGenCategory(GetUnicharAt(i)) ==
+ nsUGenCategory::kNumber) {
+ return true;
+ }
+ }
+
+ // not special
+ return false;
+}
+
+template <class T>
+Maybe<int32_t> WordSplitState<T>::FindOffsetOfLastDOMWordSeparatorSequence(
+ const int32_t aBeforeOffset) const {
+ for (int32_t i = aBeforeOffset - 1; i >= 0; --i) {
+ if (IsDOMWordSeparator(mDOMWordText[i]) ||
+ (!IsAmbiguousDOMWordSeprator(mDOMWordText[i]) &&
+ ClassifyCharacter(i, true) == CHAR_CLASS_SEPARATOR)) {
+ // Be greedy, find as many separators as we can
+ for (int32_t j = i - 1; j >= 0; --j) {
+ if (IsDOMWordSeparator(mDOMWordText[j]) ||
+ (!IsAmbiguousDOMWordSeprator(mDOMWordText[j]) &&
+ ClassifyCharacter(j, true) == CHAR_CLASS_SEPARATOR)) {
+ i = j;
+ } else {
+ break;
+ }
+ }
+ return Some(i);
+ }
+ }
+ return Nothing();
+}
+
+template <>
+char16_t WordSplitState<nsDependentSubstring>::GetUnicharAt(
+ int32_t aIndex) const {
+ return mDOMWordText[aIndex];
+}
+
+template <>
+char16_t WordSplitState<nsDependentCSubstring>::GetUnicharAt(
+ int32_t aIndex) const {
+ return static_cast<char16_t>(static_cast<uint8_t>(mDOMWordText[aIndex]));
+}
+
+static inline bool IsBRElement(nsINode* aNode) {
+ return aNode->IsHTMLElement(nsGkAtoms::br);
+}
+
+/**
+ * Given a TextNode, finds the last sequence of DOM word separators before
+ * aBeforeOffset and returns the offset to its first element.
+ *
+ * @param aContent the TextNode to check.
+ * @param aBeforeOffset the offset in the TextNode before which we will search
+ * for the DOM separator. You can pass INT32_MAX to search the entire
+ * length of the string.
+ */
+static Maybe<int32_t> FindOffsetOfLastDOMWordSeparatorSequence(
+ nsIContent* aContent, int32_t aBeforeOffset) {
+ const nsTextFragment* textFragment = aContent->GetText();
+ MOZ_ASSERT(textFragment, "Where is our text?");
+ int32_t end = std::min(aBeforeOffset, int32_t(textFragment->GetLength()));
+
+ if (textFragment->Is2b()) {
+ nsDependentSubstring targetText(textFragment->Get2b(), end);
+ WordSplitState<nsDependentSubstring> state(targetText);
+ return state.FindOffsetOfLastDOMWordSeparatorSequence(end);
+ }
+
+ nsDependentCSubstring targetText(textFragment->Get1b(), end);
+ WordSplitState<nsDependentCSubstring> state(targetText);
+ return state.FindOffsetOfLastDOMWordSeparatorSequence(end);
+}
+
+/**
+ * Check if there's a DOM word separator before aBeforeOffset in this node.
+ * Always returns true if it's a BR element.
+ * aSeparatorOffset is set to the index of the first character in the last
+ * separator if any is found (0 for BR elements).
+ *
+ * This function does not modify aSeparatorOffset when it returns false.
+ */
+static bool ContainsDOMWordSeparator(nsINode* aNode, int32_t aBeforeOffset,
+ int32_t* aSeparatorOffset) {
+ if (IsBRElement(aNode)) {
+ *aSeparatorOffset = 0;
+ return true;
+ }
+
+ if (!IsSpellCheckingTextNode(aNode)) return false;
+
+ const Maybe<int32_t> separatorOffset =
+ FindOffsetOfLastDOMWordSeparatorSequence(aNode->AsContent(),
+ aBeforeOffset);
+ if (separatorOffset) {
+ *aSeparatorOffset = *separatorOffset;
+ return true;
+ }
+
+ return false;
+}
+
+static bool IsBreakElement(nsINode* aNode) {
+ if (!aNode->IsElement()) {
+ return false;
+ }
+
+ dom::Element* element = aNode->AsElement();
+ if (element->IsHTMLElement(nsGkAtoms::br)) {
+ return true;
+ }
+
+ // If we don't have a frame, we don't consider ourselves a break
+ // element. In particular, words can span us.
+ nsIFrame* frame = element->GetPrimaryFrame();
+ if (!frame) {
+ return false;
+ }
+
+ auto* disp = frame->StyleDisplay();
+ // Anything that's not an inline element is a break element.
+ // XXXbz should replaced inlines be break elements, though?
+ // Also should inline-block and such be break elements?
+ //
+ // FIXME(emilio): We should teach the spell checker to deal with generated
+ // content (it doesn't at all), then remove the IsListItem() check, as there
+ // could be no marker, etc...
+ return !disp->IsInlineFlow() || disp->IsListItem();
+}
+
+struct CheckLeavingBreakElementClosure {
+ bool mLeftBreakElement;
+};
+
+static void CheckLeavingBreakElement(nsINode* aNode, void* aClosure) {
+ CheckLeavingBreakElementClosure* cl =
+ static_cast<CheckLeavingBreakElementClosure*>(aClosure);
+ if (!cl->mLeftBreakElement && IsBreakElement(aNode)) {
+ cl->mLeftBreakElement = true;
+ }
+}
+
+void mozInlineSpellWordUtil::NormalizeWord(nsAString& aWord) {
+ nsAutoString result;
+ ::NormalizeWord(aWord, 0, aWord.Length(), result);
+ aWord = result;
+}
+
+void mozInlineSpellWordUtil::SoftText::AdjustBeginAndBuildText(
+ NodeOffset aBegin, NodeOffset aEnd, const nsINode* aRootNode) {
+ MOZ_LOG(sInlineSpellWordUtilLog, LogLevel::Debug, ("%s", __FUNCTION__));
+
+ mBegin = std::move(aBegin);
+ mEnd = std::move(aEnd);
+
+ // First we have to work backwards from mBegin to find a text node
+ // containing a DOM word separator, a non-inline-element
+ // boundary, or the hard start node. That's where we'll start building the
+ // soft string from.
+ nsINode* node = mBegin.mNode;
+ int32_t firstOffsetInNode = 0;
+ int32_t checkBeforeOffset = mBegin.mOffset;
+ while (node) {
+ if (ContainsDOMWordSeparator(node, checkBeforeOffset, &firstOffsetInNode)) {
+ if (node == mBegin.mNode) {
+ // If we find a word separator on the first node, look at the preceding
+ // word on the text node as well.
+ if (firstOffsetInNode > 0) {
+ // Try to find the previous word boundary in the current node. If
+ // we can't find one, start checking previous sibling nodes (if any
+ // adjacent ones exist) to see if we can find any text nodes with
+ // DOM word separators. We bail out as soon as we see a node that is
+ // not a text node, or we run out of previous sibling nodes. In the
+ // event that we simply cannot find any preceding word separator, the
+ // offset is set to 0, and the soft text beginning node is set to the
+ // "most previous" text node before the original starting node, or
+ // kept at the original starting node if no previous text nodes exist.
+ int32_t newOffset = 0;
+ if (!ContainsDOMWordSeparator(node, firstOffsetInNode - 1,
+ &newOffset)) {
+ nsIContent* prevNode = node->GetPreviousSibling();
+ while (prevNode && IsSpellCheckingTextNode(prevNode)) {
+ mBegin.mNode = prevNode;
+ const Maybe<int32_t> separatorOffset =
+ FindOffsetOfLastDOMWordSeparatorSequence(prevNode, INT32_MAX);
+ if (separatorOffset) {
+ newOffset = *separatorOffset;
+ break;
+ }
+ prevNode = prevNode->GetPreviousSibling();
+ }
+ }
+ firstOffsetInNode = newOffset;
+ } else {
+ firstOffsetInNode = 0;
+ }
+
+ MOZ_LOG(sInlineSpellWordUtilLog, LogLevel::Debug,
+ ("%s: adjusting mBegin.mOffset from %i to %i.", __FUNCTION__,
+ mBegin.mOffset, firstOffsetInNode));
+ mBegin.mOffset = firstOffsetInNode;
+ }
+ break;
+ }
+ checkBeforeOffset = INT32_MAX;
+ if (IsBreakElement(node)) {
+ // Since GetPreviousContent follows tree *preorder*, we're about to
+ // traverse up out of 'node'. Since node induces breaks (e.g., it's a
+ // block), don't bother trying to look outside it, just stop now.
+ break;
+ }
+ // GetPreviousContent below expects aRootNode to be an ancestor of node.
+ if (!node->IsInclusiveDescendantOf(aRootNode)) {
+ break;
+ }
+ node = node->GetPreviousContent(aRootNode);
+ }
+
+ // Now build up the string moving forward through the DOM until we reach
+ // the soft end and *then* see a DOM word separator, a non-inline-element
+ // boundary, or the hard end node.
+ mValue.Truncate();
+ mDOMMapping.Clear();
+ bool seenSoftEnd = false;
+ // Leave this outside the loop so large heap string allocations can be reused
+ // across iterations
+ while (node) {
+ if (node == mEnd.mNode) {
+ seenSoftEnd = true;
+ }
+
+ bool exit = false;
+ if (IsSpellCheckingTextNode(node)) {
+ nsIContent* content = static_cast<nsIContent*>(node);
+ MOZ_ASSERT(content, "Where is our content?");
+ const nsTextFragment* textFragment = content->GetText();
+ MOZ_ASSERT(textFragment, "Where is our text?");
+ uint32_t lastOffsetInNode = textFragment->GetLength();
+
+ if (seenSoftEnd) {
+ // check whether we can stop after this
+ for (uint32_t i =
+ node == mEnd.mNode ? AssertedCast<uint32_t>(mEnd.mOffset) : 0;
+ i < textFragment->GetLength(); ++i) {
+ if (IsDOMWordSeparator(textFragment->CharAt(i))) {
+ exit = true;
+ // stop at the first separator after the soft end point
+ lastOffsetInNode = i;
+ break;
+ }
+ }
+ }
+
+ if (firstOffsetInNode >= 0 &&
+ static_cast<uint32_t>(firstOffsetInNode) < lastOffsetInNode) {
+ const uint32_t len = lastOffsetInNode - firstOffsetInNode;
+ mDOMMapping.AppendElement(DOMTextMapping(
+ NodeOffset(node, firstOffsetInNode), mValue.Length(), len));
+
+ const bool ok = textFragment->AppendTo(
+ mValue, static_cast<uint32_t>(firstOffsetInNode), len,
+ mozilla::fallible);
+ if (!ok) {
+ // probably out of memory, remove from mDOMMapping
+ mDOMMapping.RemoveLastElement();
+ exit = true;
+ }
+ }
+
+ firstOffsetInNode = 0;
+ }
+
+ if (exit) break;
+
+ CheckLeavingBreakElementClosure closure = {false};
+ node = FindNextNode(node, aRootNode, CheckLeavingBreakElement, &closure);
+ if (closure.mLeftBreakElement || (node && IsBreakElement(node))) {
+ // We left, or are entering, a break element (e.g., block). Maybe we can
+ // stop now.
+ if (seenSoftEnd) break;
+ // Record the break
+ mValue.Append(' ');
+ }
+ }
+
+ MOZ_LOG(sInlineSpellWordUtilLog, LogLevel::Debug,
+ ("%s: got DOM string: %s", __FUNCTION__,
+ NS_ConvertUTF16toUTF8(mValue).get()));
+}
+
+auto mozInlineSpellWordUtil::BuildRealWords() const
+ -> Result<RealWords, nsresult> {
+ // This is pretty simple. We just have to walk mSoftText.GetValue(),
+ // tokenizing it into "real words". We do an outer traversal of words
+ // delimited by IsDOMWordSeparator, calling SplitDOMWordAndAppendTo on each of
+ // those DOM words
+ int32_t wordStart = -1;
+ RealWords realWords;
+ for (int32_t i = 0; i < int32_t(mSoftText.GetValue().Length()); ++i) {
+ if (IsDOMWordSeparator(mSoftText.GetValue().CharAt(i))) {
+ if (wordStart >= 0) {
+ nsresult rv = SplitDOMWordAndAppendTo(wordStart, i, realWords);
+ if (NS_FAILED(rv)) {
+ return Err(rv);
+ }
+ wordStart = -1;
+ }
+ } else {
+ if (wordStart < 0) {
+ wordStart = i;
+ }
+ }
+ }
+ if (wordStart >= 0) {
+ nsresult rv = SplitDOMWordAndAppendTo(
+ wordStart, mSoftText.GetValue().Length(), realWords);
+ if (NS_FAILED(rv)) {
+ return Err(rv);
+ }
+ }
+
+ return realWords;
+}
+
+/*********** DOM/realwords<->mSoftText.GetValue() mapping functions
+ * ************/
+
+int32_t mozInlineSpellWordUtil::MapDOMPositionToSoftTextOffset(
+ const NodeOffset& aNodeOffset) const {
+ if (!mSoftText.mIsValid) {
+ NS_ERROR("Soft text must be valid if we're to map into it");
+ return -1;
+ }
+
+ for (int32_t i = 0; i < int32_t(mSoftText.GetDOMMapping().Length()); ++i) {
+ const DOMTextMapping& map = mSoftText.GetDOMMapping()[i];
+ if (map.mNodeOffset.mNode == aNodeOffset.mNode) {
+ // Allow offsets at either end of the string, in particular, allow the
+ // offset that's at the end of the contributed string
+ int32_t offsetInContributedString =
+ aNodeOffset.mOffset - map.mNodeOffset.mOffset;
+ if (offsetInContributedString >= 0 &&
+ offsetInContributedString <= map.mLength)
+ return map.mSoftTextOffset + offsetInContributedString;
+ return -1;
+ }
+ }
+ return -1;
+}
+
+namespace {
+
+template <class T>
+class FirstLargerOffset {
+ int32_t mSoftTextOffset;
+
+ public:
+ explicit FirstLargerOffset(int32_t aSoftTextOffset)
+ : mSoftTextOffset(aSoftTextOffset) {}
+ int operator()(const T& t) const {
+ // We want the first larger offset, so never return 0 (which would
+ // short-circuit evaluation before finding the last such offset).
+ return mSoftTextOffset < t.mSoftTextOffset ? -1 : 1;
+ }
+};
+
+template <class T>
+bool FindLastNongreaterOffset(const nsTArray<T>& aContainer,
+ int32_t aSoftTextOffset, size_t* aIndex) {
+ if (aContainer.Length() == 0) {
+ return false;
+ }
+
+ BinarySearchIf(aContainer, 0, aContainer.Length(),
+ FirstLargerOffset<T>(aSoftTextOffset), aIndex);
+ if (*aIndex > 0) {
+ // There was at least one mapping with offset <= aSoftTextOffset. Step back
+ // to find the last element with |mSoftTextOffset <= aSoftTextOffset|.
+ *aIndex -= 1;
+ } else {
+ // Every mapping had offset greater than aSoftTextOffset.
+ MOZ_ASSERT(aContainer[*aIndex].mSoftTextOffset > aSoftTextOffset);
+ }
+ return true;
+}
+
+} // namespace
+
+NodeOffset mozInlineSpellWordUtil::MapSoftTextOffsetToDOMPosition(
+ int32_t aSoftTextOffset, DOMMapHint aHint) const {
+ MOZ_ASSERT(mSoftText.mIsValid,
+ "Soft text must be valid if we're to map out of it");
+ if (!mSoftText.mIsValid) return NodeOffset(nullptr, -1);
+
+ // Find the last mapping, if any, such that mSoftTextOffset <= aSoftTextOffset
+ size_t index;
+ bool found = FindLastNongreaterOffset(mSoftText.GetDOMMapping(),
+ aSoftTextOffset, &index);
+ if (!found) {
+ return NodeOffset(nullptr, -1);
+ }
+
+ // 'index' is now the last mapping, if any, such that
+ // mSoftTextOffset <= aSoftTextOffset.
+ // If we're doing HINT_END, then we may want to return the end of the
+ // the previous mapping instead of the start of this mapping
+ if (aHint == HINT_END && index > 0) {
+ const DOMTextMapping& map = mSoftText.GetDOMMapping()[index - 1];
+ if (map.mSoftTextOffset + map.mLength == aSoftTextOffset)
+ return NodeOffset(map.mNodeOffset.mNode,
+ map.mNodeOffset.mOffset + map.mLength);
+ }
+
+ // We allow ourselves to return the end of this mapping even if we're
+ // doing HINT_START. This will only happen if there is no mapping which this
+ // point is the start of. I'm not 100% sure this is OK...
+ const DOMTextMapping& map = mSoftText.GetDOMMapping()[index];
+ int32_t offset = aSoftTextOffset - map.mSoftTextOffset;
+ if (offset >= 0 && offset <= map.mLength)
+ return NodeOffset(map.mNodeOffset.mNode, map.mNodeOffset.mOffset + offset);
+
+ return NodeOffset(nullptr, -1);
+}
+
+// static
+void mozInlineSpellWordUtil::ToString(const DOMMapHint aHint,
+ nsACString& aResult) {
+ switch (aHint) {
+ case HINT_BEGIN:
+ aResult.AssignLiteral("begin");
+ break;
+ case HINT_END:
+ aResult.AssignLiteral("end");
+ break;
+ }
+}
+
+int32_t mozInlineSpellWordUtil::FindRealWordContaining(
+ int32_t aSoftTextOffset, DOMMapHint aHint, bool aSearchForward) const {
+ if (MOZ_LOG_TEST(sInlineSpellWordUtilLog, LogLevel::Debug)) {
+ nsAutoCString hint;
+ mozInlineSpellWordUtil::ToString(aHint, hint);
+
+ MOZ_LOG(
+ sInlineSpellWordUtilLog, LogLevel::Debug,
+ ("%s: offset=%i, hint=%s, searchForward=%i.", __FUNCTION__,
+ aSoftTextOffset, hint.get(), static_cast<int32_t>(aSearchForward)));
+ }
+
+ MOZ_ASSERT(mSoftText.mIsValid,
+ "Soft text must be valid if we're to map out of it");
+ if (!mSoftText.mIsValid) return -1;
+
+ // Find the last word, if any, such that mRealWords[index].mSoftTextOffset
+ // <= aSoftTextOffset
+ size_t index;
+ bool found = FindLastNongreaterOffset(mRealWords, aSoftTextOffset, &index);
+ if (!found) {
+ return -1;
+ }
+
+ // 'index' is now the last word, if any, such that
+ // mSoftTextOffset <= aSoftTextOffset.
+ // If we're doing HINT_END, then we may want to return the end of the
+ // the previous word instead of the start of this word
+ if (aHint == HINT_END && index > 0) {
+ const RealWord& word = mRealWords[index - 1];
+ if (word.EndOffset() == aSoftTextOffset) {
+ return index - 1;
+ }
+ }
+
+ // We allow ourselves to return the end of this word even if we're
+ // doing HINT_BEGIN. This will only happen if there is no word which this
+ // point is the start of. I'm not 100% sure this is OK...
+ const RealWord& word = mRealWords[index];
+ int32_t offset = aSoftTextOffset - word.mSoftTextOffset;
+ if (offset >= 0 && offset <= static_cast<int32_t>(word.mLength)) return index;
+
+ if (aSearchForward) {
+ if (mRealWords[0].mSoftTextOffset > aSoftTextOffset) {
+ // All words have mSoftTextOffset > aSoftTextOffset
+ return 0;
+ }
+ // 'index' is the last word such that mSoftTextOffset <= aSoftTextOffset.
+ // Word index+1, if it exists, will be the first with
+ // mSoftTextOffset > aSoftTextOffset.
+ if (index + 1 < mRealWords.Length()) return index + 1;
+ }
+
+ return -1;
+}
+
+// mozInlineSpellWordUtil::SplitDOMWordAndAppendTo
+
+nsresult mozInlineSpellWordUtil::SplitDOMWordAndAppendTo(
+ int32_t aStart, int32_t aEnd, nsTArray<RealWord>& aRealWords) const {
+ nsDependentSubstring targetText(mSoftText.GetValue(), aStart, aEnd - aStart);
+ WordSplitState<nsDependentSubstring> state(targetText);
+ state.mCurCharClass = state.ClassifyCharacter(0, true);
+
+ state.AdvanceThroughSeparators();
+ if (state.mCurCharClass != CHAR_CLASS_END_OF_INPUT && state.IsSpecialWord()) {
+ int32_t specialWordLength =
+ state.mDOMWordText.Length() - state.mDOMWordOffset;
+ if (!aRealWords.AppendElement(
+ RealWord(aStart + state.mDOMWordOffset, specialWordLength, false),
+ fallible)) {
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+
+ return NS_OK;
+ }
+
+ while (state.mCurCharClass != CHAR_CLASS_END_OF_INPUT) {
+ state.AdvanceThroughSeparators();
+ if (state.mCurCharClass == CHAR_CLASS_END_OF_INPUT) break;
+
+ // save the beginning of the word
+ int32_t wordOffset = state.mDOMWordOffset;
+
+ // find the end of the word
+ state.AdvanceThroughWord();
+ int32_t wordLen = state.mDOMWordOffset - wordOffset;
+ if (!aRealWords.AppendElement(
+ RealWord(aStart + wordOffset, wordLen,
+ !state.ShouldSkipWord(wordOffset, wordLen)),
+ fallible)) {
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+ }
+
+ return NS_OK;
+}
diff --git a/extensions/spellcheck/src/mozInlineSpellWordUtil.h b/extensions/spellcheck/src/mozInlineSpellWordUtil.h
new file mode 100644
index 0000000000..2a1b4b912e
--- /dev/null
+++ b/extensions/spellcheck/src/mozInlineSpellWordUtil.h
@@ -0,0 +1,253 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozInlineSpellWordUtil_h
+#define mozInlineSpellWordUtil_h
+
+#include <utility>
+
+#include "mozilla/Attributes.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/RangeBoundary.h"
+#include "mozilla/Result.h"
+#include "mozilla/dom/Document.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "nsTArray.h"
+
+// #define DEBUG_SPELLCHECK
+
+class nsRange;
+class nsINode;
+
+namespace mozilla {
+class EditorBase;
+
+namespace dom {
+class Document;
+}
+} // namespace mozilla
+
+struct NodeOffset {
+ nsCOMPtr<nsINode> mNode;
+ int32_t mOffset;
+
+ NodeOffset() : mOffset(0) {}
+ NodeOffset(nsINode* aNode, int32_t aOffset)
+ : mNode(aNode), mOffset(aOffset) {}
+
+ bool operator==(const NodeOffset& aOther) const {
+ return mNode == aOther.mNode && mOffset == aOther.mOffset;
+ }
+
+ bool operator==(const mozilla::RangeBoundary& aRangeBoundary) const;
+
+ bool operator!=(const NodeOffset& aOther) const { return !(*this == aOther); }
+
+ nsINode* Node() const { return mNode.get(); }
+ int32_t Offset() const { return mOffset; }
+};
+
+class NodeOffsetRange {
+ private:
+ NodeOffset mBegin;
+ NodeOffset mEnd;
+
+ public:
+ NodeOffsetRange() {}
+ NodeOffsetRange(NodeOffset b, NodeOffset e)
+ : mBegin(std::move(b)), mEnd(std::move(e)) {}
+
+ bool operator==(const nsRange& aRange) const;
+
+ const NodeOffset& Begin() const { return mBegin; }
+
+ const NodeOffset& End() const { return mEnd; }
+};
+
+/**
+ * This class extracts text from the DOM and builds it into a single string.
+ * The string includes whitespace breaks whereever non-inline elements begin
+ * and end. This string is broken into "real words", following somewhat
+ * complex rules; for example substrings that look like URLs or
+ * email addresses are treated as single words, but otherwise many kinds of
+ * punctuation are treated as word separators. GetNextWord provides a way
+ * to iterate over these "real words".
+ *
+ * The basic operation is:
+ *
+ * 1. Call Init with the editor that you're using.
+ * 2. Call SetPositionAndEnd to to initialize the current position inside the
+ * previously given range and set where you want to stop spellchecking.
+ * We'll stop at the word boundary after that. If SetEnd is not called,
+ * we'll stop at the end of the root element.
+ * 3. Call GetNextWord over and over until it returns false.
+ */
+
+class MOZ_STACK_CLASS mozInlineSpellWordUtil {
+ public:
+ static mozilla::Maybe<mozInlineSpellWordUtil> Create(
+ const mozilla::EditorBase& aEditorBase);
+
+ // sets the current position, this should be inside the range. If we are in
+ // the middle of a word, we'll move to its start.
+ nsresult SetPositionAndEnd(nsINode* aPositionNode, int32_t aPositionOffset,
+ nsINode* aEndNode, int32_t aEndOffset);
+
+ // Given a point inside or immediately following a word, this returns the
+ // DOM range that exactly encloses that word's characters. The current
+ // position will be at the end of the word. This will find the previous
+ // word if the current position is space, so if you care that the point is
+ // inside the word, you should check the range.
+ //
+ // THIS CHANGES THE CURRENT POSITION AND RANGE. It is designed to be called
+ // before you actually generate the range you are interested in and iterate
+ // the words in it.
+ nsresult GetRangeForWord(nsINode* aWordNode, int32_t aWordOffset,
+ nsRange** aRange);
+
+ // Convenience functions, object must be initialized
+ nsresult MakeRange(NodeOffset aBegin, NodeOffset aEnd,
+ nsRange** aRange) const;
+ static already_AddRefed<nsRange> MakeRange(const NodeOffsetRange& aRange);
+
+ struct Word {
+ nsAutoString mText;
+ NodeOffsetRange mNodeOffsetRange;
+ bool mSkipChecking = false;
+ };
+
+ // Moves to the the next word in the range, and retrieves it's text and range.
+ // `false` is returned when we are done checking.
+ // mSkipChecking will be set if the word is "special" and shouldn't be
+ // checked (e.g., an email address).
+ bool GetNextWord(Word& aWord);
+
+ // Call to normalize some punctuation. This function takes an autostring
+ // so we can access characters directly.
+ static void NormalizeWord(nsAString& aWord);
+
+ mozilla::dom::Document* GetDocument() const { return mDocument; }
+ const nsINode* GetRootNode() const { return mRootNode; }
+
+ private:
+ // A list of where we extracted text from, ordered by mSoftTextOffset. A given
+ // DOM node appears at most once in this list.
+ struct DOMTextMapping {
+ NodeOffset mNodeOffset;
+ int32_t mSoftTextOffset;
+ int32_t mLength;
+
+ DOMTextMapping(NodeOffset aNodeOffset, int32_t aSoftTextOffset,
+ int32_t aLength)
+ : mNodeOffset(std::move(aNodeOffset)),
+ mSoftTextOffset(aSoftTextOffset),
+ mLength(aLength) {}
+ };
+
+ struct SoftText {
+ void AdjustBeginAndBuildText(NodeOffset aBegin, NodeOffset aEnd,
+ const nsINode* aRootNode);
+
+ void Invalidate() { mIsValid = false; }
+
+ const NodeOffset& GetBegin() const { return mBegin; }
+ const NodeOffset& GetEnd() const { return mEnd; }
+
+ const nsTArray<DOMTextMapping>& GetDOMMapping() const {
+ return mDOMMapping;
+ }
+
+ const nsString& GetValue() const { return mValue; }
+
+ bool mIsValid = false;
+
+ private:
+ NodeOffset mBegin = NodeOffset(nullptr, 0);
+ NodeOffset mEnd = NodeOffset(nullptr, 0);
+
+ nsTArray<DOMTextMapping> mDOMMapping;
+
+ // DOM text covering the soft range, with newlines added at block boundaries
+ nsString mValue;
+ };
+
+ SoftText mSoftText;
+
+ mozInlineSpellWordUtil(mozilla::dom::Document& aDocument,
+ bool aIsContentEditableOrDesignMode, nsINode& aRootNode
+
+ )
+ : mDocument(&aDocument),
+ mIsContentEditableOrDesignMode(aIsContentEditableOrDesignMode),
+ mRootNode(&aRootNode),
+ mNextWordIndex(-1) {}
+
+ // cached stuff for the editor
+ const RefPtr<mozilla::dom::Document> mDocument;
+ const bool mIsContentEditableOrDesignMode;
+
+ // range to check, see SetPosition and SetEnd
+ const nsINode* mRootNode;
+
+ // A list of the "real words" in mSoftText.mValue, ordered by mSoftTextOffset
+ struct RealWord {
+ int32_t mSoftTextOffset;
+ uint32_t mLength : 31;
+ uint32_t mCheckableWord : 1;
+
+ RealWord(int32_t aOffset, uint32_t aLength, bool aCheckable)
+ : mSoftTextOffset(aOffset),
+ mLength(aLength),
+ mCheckableWord(aCheckable) {
+ static_assert(sizeof(RealWord) == 8,
+ "RealWord should be limited to 8 bytes");
+ MOZ_ASSERT(aLength < INT32_MAX,
+ "Word length is too large to fit in the bitfield");
+ }
+
+ int32_t EndOffset() const { return mSoftTextOffset + mLength; }
+ };
+ using RealWords = nsTArray<RealWord>;
+ RealWords mRealWords;
+ int32_t mNextWordIndex;
+
+ nsresult EnsureWords(NodeOffset aSoftBegin, NodeOffset aSoftEnd);
+
+ int32_t MapDOMPositionToSoftTextOffset(const NodeOffset& aNodeOffset) const;
+ // Map an offset into mSoftText.mValue to a DOM position. Note that two DOM
+ // positions can map to the same mSoftText.mValue offset, e.g. given nodes
+ // A=aaaa and B=bbbb forming aaaabbbb, (A,4) and (B,0) give the same string
+ // offset. So, aHintBefore controls which position we return ... if aHint is
+ // eEnd then the position indicates the END of a range so we return (A,4).
+ // Otherwise the position indicates the START of a range so we return (B,0).
+ enum DOMMapHint { HINT_BEGIN, HINT_END };
+ NodeOffset MapSoftTextOffsetToDOMPosition(int32_t aSoftTextOffset,
+ DOMMapHint aHint) const;
+
+ static void ToString(DOMMapHint aHint, nsACString& aResult);
+
+ // Finds the index of the real word containing aSoftTextOffset, or -1 if none.
+ //
+ // If it's exactly between two words, then if aHint is HINT_BEGIN, return the
+ // later word (favouring the assumption that it's the BEGINning of a word),
+ // otherwise return the earlier word (assuming it's the END of a word).
+ // If aSearchForward is true, then if we don't find a word at the given
+ // position, search forward until we do find a word and return that (if
+ // found).
+ int32_t FindRealWordContaining(int32_t aSoftTextOffset, DOMMapHint aHint,
+ bool aSearchForward) const;
+
+ mozilla::Result<RealWords, nsresult> BuildRealWords() const;
+
+ nsresult SplitDOMWordAndAppendTo(int32_t aStart, int32_t aEnd,
+ nsTArray<RealWord>& aRealWords) const;
+
+ nsresult MakeRangeForWord(const RealWord& aWord, nsRange** aRange) const;
+ void MakeNodeOffsetRangeForWord(const RealWord& aWord,
+ NodeOffsetRange* aNodeOffsetRange);
+};
+
+#endif
diff --git a/extensions/spellcheck/src/mozPersonalDictionary.cpp b/extensions/spellcheck/src/mozPersonalDictionary.cpp
new file mode 100644
index 0000000000..752369c034
--- /dev/null
+++ b/extensions/spellcheck/src/mozPersonalDictionary.cpp
@@ -0,0 +1,433 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozPersonalDictionary.h"
+
+#include <utility>
+
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsCRT.h"
+#include "nsIFile.h"
+#include "nsIInputStream.h"
+#include "nsIObserverService.h"
+#include "nsIOutputStream.h"
+#include "nsIRunnable.h"
+#include "nsISafeOutputStream.h"
+#include "nsIUnicharInputStream.h"
+#include "nsIWeakReference.h"
+#include "nsNetCID.h"
+#include "nsNetUtil.h"
+#include "nsProxyRelease.h"
+#include "nsReadableUtils.h"
+#include "nsStringEnumerator.h"
+#include "nsTArray.h"
+#include "nsThreadUtils.h"
+#include "nsUnicharInputStream.h"
+#include "prio.h"
+
+#define MOZ_PERSONAL_DICT_NAME u"persdict.dat"
+
+/**
+ * This is the most braindead implementation of a personal dictionary possible.
+ * There is not much complexity needed, though. It could be made much faster,
+ * and probably should, but I don't see much need for more in terms of
+ * interface.
+ *
+ * Allowing personal words to be associated with only certain dictionaries
+ * maybe.
+ *
+ * TODO:
+ * Implement the suggestion record.
+ */
+
+NS_IMPL_ADDREF(mozPersonalDictionary)
+NS_IMPL_RELEASE(mozPersonalDictionary)
+
+NS_INTERFACE_MAP_BEGIN(mozPersonalDictionary)
+ NS_INTERFACE_MAP_ENTRY(mozIPersonalDictionary)
+ NS_INTERFACE_MAP_ENTRY(nsIObserver)
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+ NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, mozIPersonalDictionary)
+NS_INTERFACE_MAP_END
+
+class mozPersonalDictionaryLoader final : public mozilla::Runnable {
+ public:
+ explicit mozPersonalDictionaryLoader(mozPersonalDictionary* dict)
+ : mozilla::Runnable("mozPersonalDictionaryLoader"), mDict(dict) {}
+
+ NS_IMETHOD Run() override {
+ mDict->SyncLoad();
+
+ // Release the dictionary on the main thread
+ NS_ReleaseOnMainThread("mozPersonalDictionaryLoader::mDict",
+ mDict.forget().downcast<mozIPersonalDictionary>());
+
+ return NS_OK;
+ }
+
+ private:
+ RefPtr<mozPersonalDictionary> mDict;
+};
+
+class mozPersonalDictionarySave final : public mozilla::Runnable {
+ public:
+ explicit mozPersonalDictionarySave(mozPersonalDictionary* aDict,
+ nsCOMPtr<nsIFile> aFile,
+ nsTArray<nsString>&& aDictWords)
+ : mozilla::Runnable("mozPersonalDictionarySave"),
+ mDictWords(std::move(aDictWords)),
+ mFile(aFile),
+ mDict(aDict) {}
+
+ NS_IMETHOD Run() override {
+ nsresult res;
+
+ MOZ_ASSERT(!NS_IsMainThread());
+
+ {
+ mozilla::MonitorAutoLock mon(mDict->mMonitorSave);
+
+ nsCOMPtr<nsIOutputStream> outStream;
+ NS_NewSafeLocalFileOutputStream(getter_AddRefs(outStream), mFile,
+ PR_CREATE_FILE | PR_WRONLY | PR_TRUNCATE,
+ 0664);
+
+ // Get a buffered output stream 4096 bytes big, to optimize writes.
+ nsCOMPtr<nsIOutputStream> bufferedOutputStream;
+ res = NS_NewBufferedOutputStream(getter_AddRefs(bufferedOutputStream),
+ outStream.forget(), 4096);
+ if (NS_FAILED(res)) {
+ return res;
+ }
+
+ uint32_t bytesWritten;
+ nsAutoCString utf8Key;
+ for (uint32_t i = 0; i < mDictWords.Length(); ++i) {
+ CopyUTF16toUTF8(mDictWords[i], utf8Key);
+
+ bufferedOutputStream->Write(utf8Key.get(), utf8Key.Length(),
+ &bytesWritten);
+ bufferedOutputStream->Write("\n", 1, &bytesWritten);
+ }
+ nsCOMPtr<nsISafeOutputStream> safeStream =
+ do_QueryInterface(bufferedOutputStream);
+ NS_ASSERTION(safeStream, "expected a safe output stream!");
+ if (safeStream) {
+ res = safeStream->Finish();
+ if (NS_FAILED(res)) {
+ NS_WARNING(
+ "failed to save personal dictionary file! possible data loss");
+ }
+ }
+
+ // Save is done, reset the state variable and notify those who are
+ // waiting.
+ mDict->mSavePending = false;
+ mon.Notify();
+
+ // Leaving the block where 'mon' was declared will call the destructor
+ // and unlock.
+ }
+
+ // Release the dictionary on the main thread.
+ NS_ReleaseOnMainThread("mozPersonalDictionarySave::mDict",
+ mDict.forget().downcast<mozIPersonalDictionary>());
+
+ return NS_OK;
+ }
+
+ private:
+ nsTArray<nsString> mDictWords;
+ nsCOMPtr<nsIFile> mFile;
+ RefPtr<mozPersonalDictionary> mDict;
+};
+
+mozPersonalDictionary::mozPersonalDictionary()
+ : mIsLoaded(false),
+ mSavePending(false),
+ mMonitor("mozPersonalDictionary::mMonitor"),
+ mMonitorSave("mozPersonalDictionary::mMonitorSave") {}
+
+mozPersonalDictionary::~mozPersonalDictionary() {}
+
+nsresult mozPersonalDictionary::Init() {
+ nsCOMPtr<nsIObserverService> svc =
+ do_GetService("@mozilla.org/observer-service;1");
+
+ NS_ENSURE_STATE(svc);
+ // we want to reload the dictionary if the profile switches
+ nsresult rv = svc->AddObserver(this, "profile-do-change", true);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ rv = svc->AddObserver(this, "profile-before-change", true);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ Load();
+
+ return NS_OK;
+}
+
+void mozPersonalDictionary::WaitForLoad() {
+ // If the dictionary is already loaded, we return straight away.
+ if (mIsLoaded) {
+ return;
+ }
+
+ // If the dictionary hasn't been loaded, we try to lock the same monitor
+ // that the thread uses that does the load. This way the main thread will
+ // be suspended until the monitor becomes available.
+ mozilla::MonitorAutoLock mon(mMonitor);
+
+ // The monitor has become available. This can have two reasons:
+ // 1: The thread that does the load has finished.
+ // 2: The thread that does the load hasn't even started.
+ // In this case we need to wait.
+ if (!mIsLoaded) {
+ mon.Wait();
+ }
+}
+
+nsresult mozPersonalDictionary::LoadInternal() {
+ nsresult rv;
+ mozilla::MonitorAutoLock mon(mMonitor);
+
+ if (mIsLoaded) {
+ return NS_OK;
+ }
+
+ rv =
+ NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(mFile));
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ if (!mFile) {
+ return NS_ERROR_FAILURE;
+ }
+
+ rv = mFile->Append(nsLiteralString(MOZ_PERSONAL_DICT_NAME));
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ nsCOMPtr<nsIEventTarget> target =
+ do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ nsCOMPtr<nsIRunnable> runnable = new mozPersonalDictionaryLoader(this);
+ rv = target->Dispatch(runnable, NS_DISPATCH_NORMAL);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozPersonalDictionary::Load() {
+ nsresult rv = LoadInternal();
+
+ if (NS_FAILED(rv)) {
+ mIsLoaded = true;
+ }
+
+ return rv;
+}
+
+void mozPersonalDictionary::SyncLoad() {
+ MOZ_ASSERT(!NS_IsMainThread());
+
+ mozilla::MonitorAutoLock mon(mMonitor);
+
+ if (mIsLoaded) {
+ return;
+ }
+
+ SyncLoadInternal();
+ mIsLoaded = true;
+ mon.Notify();
+}
+
+void mozPersonalDictionary::SyncLoadInternal() {
+ MOZ_ASSERT(!NS_IsMainThread());
+
+ // FIXME Deinst -- get dictionary name from prefs;
+ nsresult rv;
+ bool dictExists;
+
+ rv = mFile->Exists(&dictExists);
+ if (NS_FAILED(rv)) {
+ return;
+ }
+
+ if (!dictExists) {
+ // Nothing is really wrong...
+ return;
+ }
+
+ nsCOMPtr<nsIInputStream> inStream;
+ NS_NewLocalFileInputStream(getter_AddRefs(inStream), mFile);
+
+ nsCOMPtr<nsIUnicharInputStream> convStream;
+ rv = NS_NewUnicharInputStream(inStream, getter_AddRefs(convStream));
+ if (NS_FAILED(rv)) {
+ return;
+ }
+
+ // we're rereading to get rid of the old data -- we shouldn't have any,
+ // but...
+ mDictionaryTable.Clear();
+
+ char16_t c;
+ uint32_t nRead;
+ bool done = false;
+ do { // read each line of text into the string array.
+ if ((NS_OK != convStream->Read(&c, 1, &nRead)) || (nRead != 1)) break;
+ while (!done && ((c == '\n') || (c == '\r'))) {
+ if ((NS_OK != convStream->Read(&c, 1, &nRead)) || (nRead != 1))
+ done = true;
+ }
+ if (!done) {
+ nsAutoString word;
+ while ((c != '\n') && (c != '\r') && !done) {
+ word.Append(c);
+ if ((NS_OK != convStream->Read(&c, 1, &nRead)) || (nRead != 1))
+ done = true;
+ }
+ mDictionaryTable.Insert(word);
+ }
+ } while (!done);
+}
+
+void mozPersonalDictionary::WaitForSave() {
+ // If no save is pending, we return straight away.
+ if (!mSavePending) {
+ return;
+ }
+
+ // If a save is pending, we try to lock the same monitor that the thread uses
+ // that does the save. This way the main thread will be suspended until the
+ // monitor becomes available.
+ mozilla::MonitorAutoLock mon(mMonitorSave);
+
+ // The monitor has become available. This can have two reasons:
+ // 1: The thread that does the save has finished.
+ // 2: The thread that does the save hasn't even started.
+ // In this case we need to wait.
+ if (mSavePending) {
+ mon.Wait();
+ }
+}
+
+NS_IMETHODIMP mozPersonalDictionary::Save() {
+ nsCOMPtr<nsIFile> theFile;
+ nsresult res;
+
+ WaitForSave();
+
+ mSavePending = true;
+
+ // FIXME Deinst -- get dictionary name from prefs;
+ res = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
+ getter_AddRefs(theFile));
+ if (NS_FAILED(res)) return res;
+ if (!theFile) return NS_ERROR_FAILURE;
+ res = theFile->Append(nsLiteralString(MOZ_PERSONAL_DICT_NAME));
+ if (NS_FAILED(res)) return res;
+
+ nsCOMPtr<nsIEventTarget> target =
+ do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &res);
+ if (NS_WARN_IF(NS_FAILED(res))) {
+ return res;
+ }
+
+ nsCOMPtr<nsIRunnable> runnable = new mozPersonalDictionarySave(
+ this, theFile, mozilla::ToTArray<nsTArray<nsString>>(mDictionaryTable));
+ res = target->Dispatch(runnable, NS_DISPATCH_NORMAL);
+ if (NS_WARN_IF(NS_FAILED(res))) {
+ return res;
+ }
+ return res;
+}
+
+NS_IMETHODIMP mozPersonalDictionary::GetWordList(nsIStringEnumerator** aWords) {
+ NS_ENSURE_ARG_POINTER(aWords);
+ *aWords = nullptr;
+
+ WaitForLoad();
+
+ nsTArray<nsString>* array = new nsTArray<nsString>(
+ mozilla::ToTArray<nsTArray<nsString>>(mDictionaryTable));
+
+ array->Sort();
+
+ return NS_NewAdoptingStringEnumerator(aWords, array);
+}
+
+NS_IMETHODIMP
+mozPersonalDictionary::Check(const nsAString& aWord, bool* aResult) {
+ NS_ENSURE_ARG_POINTER(aResult);
+
+ WaitForLoad();
+
+ *aResult = (mDictionaryTable.Contains(aWord) || mIgnoreTable.Contains(aWord));
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+mozPersonalDictionary::AddWord(const nsAString& aWord) {
+ nsresult res;
+ WaitForLoad();
+
+ mDictionaryTable.Insert(aWord);
+ res = Save();
+ return res;
+}
+
+NS_IMETHODIMP
+mozPersonalDictionary::RemoveWord(const nsAString& aWord) {
+ nsresult res;
+ WaitForLoad();
+
+ mDictionaryTable.Remove(aWord);
+ res = Save();
+ return res;
+}
+
+NS_IMETHODIMP
+mozPersonalDictionary::IgnoreWord(const nsAString& aWord) {
+ // avoid adding duplicate words to the ignore list
+ mIgnoreTable.EnsureInserted(aWord);
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozPersonalDictionary::EndSession() {
+ WaitForLoad();
+
+ WaitForSave();
+ mIgnoreTable.Clear();
+ return NS_OK;
+}
+
+NS_IMETHODIMP mozPersonalDictionary::Observe(nsISupports* aSubject,
+ const char* aTopic,
+ const char16_t* aData) {
+ if (!nsCRT::strcmp(aTopic, "profile-do-change")) {
+ // The observer is registered in Init() which calls Load and in turn
+ // LoadInternal(); i.e. Observe() can't be called before Load().
+ WaitForLoad();
+ mIsLoaded = false;
+ Load(); // load automatically clears out the existing dictionary table
+ } else if (!nsCRT::strcmp(aTopic, "profile-before-change")) {
+ WaitForSave();
+ }
+
+ return NS_OK;
+}
diff --git a/extensions/spellcheck/src/mozPersonalDictionary.h b/extensions/spellcheck/src/mozPersonalDictionary.h
new file mode 100644
index 0000000000..584c7edf56
--- /dev/null
+++ b/extensions/spellcheck/src/mozPersonalDictionary.h
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozPersonalDictionary_h__
+#define mozPersonalDictionary_h__
+
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "mozIPersonalDictionary.h"
+#include "nsIObserver.h"
+#include "nsWeakReference.h"
+#include "nsTHashSet.h"
+#include "nsCRT.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsHashKeys.h"
+#include <mozilla/Monitor.h>
+
+#define MOZ_PERSONALDICTIONARY_CONTRACTID \
+ "@mozilla.org/spellchecker/personaldictionary;1"
+#define MOZ_PERSONALDICTIONARY_CID \
+ { /* 7EF52EAF-B7E1-462B-87E2-5D1DBACA9048 */ \
+ 0X7EF52EAF, 0XB7E1, 0X462B, { \
+ 0X87, 0XE2, 0X5D, 0X1D, 0XBA, 0XCA, 0X90, 0X48 \
+ } \
+ }
+
+class mozPersonalDictionaryLoader;
+class mozPersonalDictionarySave;
+
+class mozPersonalDictionary final : public mozIPersonalDictionary,
+ public nsIObserver,
+ public nsSupportsWeakReference {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_MOZIPERSONALDICTIONARY
+ NS_DECL_NSIOBSERVER
+
+ mozPersonalDictionary();
+
+ nsresult Init();
+
+ protected:
+ virtual ~mozPersonalDictionary();
+
+ /* true if the dictionary has been loaded from disk */
+ bool mIsLoaded;
+
+ /* true if a dictionary save is pending */
+ bool mSavePending;
+
+ nsCOMPtr<nsIFile> mFile;
+ mozilla::Monitor mMonitor MOZ_UNANNOTATED;
+ mozilla::Monitor mMonitorSave MOZ_UNANNOTATED;
+ nsTHashSet<nsString> mDictionaryTable;
+ nsTHashSet<nsString> mIgnoreTable;
+
+ private:
+ /* wait for the asynchronous load of the dictionary to be completed */
+ void WaitForLoad();
+
+ /* enter the monitor before starting a synchronous load off the main-thread */
+ void SyncLoad();
+
+ /* launch an asynchrounous load of the dictionary from the main-thread
+ * after successfully initializing mFile with the path of the dictionary */
+ nsresult LoadInternal();
+
+ /* perform a synchronous load of the dictionary from disk */
+ void SyncLoadInternal();
+
+ /* wait for the asynchronous save of the dictionary to be completed */
+ void WaitForSave();
+
+ friend class mozPersonalDictionaryLoader;
+ friend class mozPersonalDictionarySave;
+};
+
+#endif
diff --git a/extensions/spellcheck/src/mozSpellChecker.cpp b/extensions/spellcheck/src/mozSpellChecker.cpp
new file mode 100644
index 0000000000..d5b0537bfe
--- /dev/null
+++ b/extensions/spellcheck/src/mozSpellChecker.cpp
@@ -0,0 +1,681 @@
+/* vim: set ts=2 sts=2 sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozSpellChecker.h"
+#include "nsIStringEnumerator.h"
+#include "nsICategoryManager.h"
+#include "nsISupportsPrimitives.h"
+#include "nsISimpleEnumerator.h"
+#include "mozEnglishWordUtils.h"
+#include "mozilla/dom/ContentChild.h"
+#include "mozilla/Logging.h"
+#include "mozilla/PRemoteSpellcheckEngineChild.h"
+#include "mozilla/TextServicesDocument.h"
+#include "nsXULAppAPI.h"
+#include "RemoteSpellCheckEngineChild.h"
+
+using mozilla::AssertedCast;
+using mozilla::GenericPromise;
+using mozilla::LogLevel;
+using mozilla::RemoteSpellcheckEngineChild;
+using mozilla::TextServicesDocument;
+using mozilla::dom::ContentChild;
+
+#define DEFAULT_SPELL_CHECKER "@mozilla.org/spellchecker/engine;1"
+
+static mozilla::LazyLogModule sSpellChecker("SpellChecker");
+
+NS_IMPL_CYCLE_COLLECTION(mozSpellChecker, mTextServicesDocument,
+ mPersonalDictionary)
+
+mozSpellChecker::mozSpellChecker() : mEngine(nullptr) {}
+
+mozSpellChecker::~mozSpellChecker() {
+ if (mPersonalDictionary) {
+ // mPersonalDictionary->Save();
+ mPersonalDictionary->EndSession();
+ }
+ mSpellCheckingEngine = nullptr;
+ mPersonalDictionary = nullptr;
+
+ if (mEngine) {
+ MOZ_ASSERT(XRE_IsContentProcess());
+ RemoteSpellcheckEngineChild::Send__delete__(mEngine);
+ MOZ_ASSERT(!mEngine);
+ }
+}
+
+nsresult mozSpellChecker::Init() {
+ mSpellCheckingEngine = nullptr;
+ if (XRE_IsContentProcess()) {
+ mozilla::dom::ContentChild* contentChild =
+ mozilla::dom::ContentChild::GetSingleton();
+ MOZ_ASSERT(contentChild);
+ mEngine = new RemoteSpellcheckEngineChild(this);
+ contentChild->SendPRemoteSpellcheckEngineConstructor(mEngine);
+ } else {
+ mPersonalDictionary =
+ do_GetService("@mozilla.org/spellchecker/personaldictionary;1");
+ }
+
+ return NS_OK;
+}
+
+TextServicesDocument* mozSpellChecker::GetTextServicesDocument() {
+ return mTextServicesDocument;
+}
+
+nsresult mozSpellChecker::SetDocument(
+ TextServicesDocument* aTextServicesDocument, bool aFromStartofDoc) {
+ MOZ_LOG(sSpellChecker, LogLevel::Debug, ("%s", __FUNCTION__));
+
+ mTextServicesDocument = aTextServicesDocument;
+ mFromStart = aFromStartofDoc;
+ return NS_OK;
+}
+
+nsresult mozSpellChecker::NextMisspelledWord(nsAString& aWord,
+ nsTArray<nsString>& aSuggestions) {
+ if (NS_WARN_IF(!mConverter)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ int32_t selOffset;
+ nsresult result;
+ result = SetupDoc(&selOffset);
+ if (NS_FAILED(result)) return result;
+
+ bool done;
+ while (NS_SUCCEEDED(mTextServicesDocument->IsDone(&done)) && !done) {
+ int32_t begin, end;
+ nsAutoString str;
+ mTextServicesDocument->GetCurrentTextBlock(str);
+ while (mConverter->FindNextWord(str, selOffset, &begin, &end)) {
+ const nsDependentSubstring currWord(str, begin, end - begin);
+ bool isMisspelled;
+ result = CheckWord(currWord, &isMisspelled, &aSuggestions);
+ if (NS_WARN_IF(NS_FAILED(result))) {
+ return result;
+ }
+ if (isMisspelled) {
+ aWord = currWord;
+ MOZ_KnownLive(mTextServicesDocument)
+ ->SetSelection(AssertedCast<uint32_t>(begin),
+ AssertedCast<uint32_t>(end - begin));
+ // After ScrollSelectionIntoView(), the pending notifications might
+ // be flushed and PresShell/PresContext/Frames may be dead.
+ // See bug 418470.
+ mTextServicesDocument->ScrollSelectionIntoView();
+ return NS_OK;
+ }
+ selOffset = end;
+ }
+ mTextServicesDocument->NextBlock();
+ selOffset = 0;
+ }
+ return NS_OK;
+}
+
+RefPtr<mozilla::CheckWordPromise> mozSpellChecker::CheckWords(
+ const nsTArray<nsString>& aWords) {
+ if (XRE_IsContentProcess()) {
+ return mEngine->CheckWords(aWords);
+ }
+
+ nsTArray<bool> misspells;
+ misspells.SetCapacity(aWords.Length());
+ for (auto& word : aWords) {
+ bool misspelled;
+ nsresult rv = CheckWord(word, &misspelled, nullptr);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return mozilla::CheckWordPromise::CreateAndReject(rv, __func__);
+ }
+ misspells.AppendElement(misspelled);
+ }
+ return mozilla::CheckWordPromise::CreateAndResolve(std::move(misspells),
+ __func__);
+}
+
+nsresult mozSpellChecker::CheckWord(const nsAString& aWord, bool* aIsMisspelled,
+ nsTArray<nsString>* aSuggestions) {
+ if (XRE_IsContentProcess()) {
+ // Use async version (CheckWords or Suggest) on content process
+ return NS_ERROR_FAILURE;
+ }
+
+ nsresult result;
+ bool correct;
+
+ if (!mSpellCheckingEngine) {
+ return NS_ERROR_NULL_POINTER;
+ }
+ *aIsMisspelled = false;
+ result = mSpellCheckingEngine->Check(aWord, &correct);
+ NS_ENSURE_SUCCESS(result, result);
+ if (!correct) {
+ if (aSuggestions) {
+ result = mSpellCheckingEngine->Suggest(aWord, *aSuggestions);
+ NS_ENSURE_SUCCESS(result, result);
+ }
+ *aIsMisspelled = true;
+ }
+ return NS_OK;
+}
+
+RefPtr<mozilla::SuggestionsPromise> mozSpellChecker::Suggest(
+ const nsAString& aWord, uint32_t aMaxCount) {
+ if (XRE_IsContentProcess()) {
+ return mEngine->SendSuggest(aWord, aMaxCount)
+ ->Then(
+ mozilla::GetCurrentSerialEventTarget(), __func__,
+ [](nsTArray<nsString>&& aSuggestions) {
+ return mozilla::SuggestionsPromise::CreateAndResolve(
+ std::move(aSuggestions), __func__);
+ },
+ [](mozilla::ipc::ResponseRejectReason&& aReason) {
+ return mozilla::SuggestionsPromise::CreateAndReject(
+ NS_ERROR_NOT_AVAILABLE, __func__);
+ });
+ }
+
+ if (!mSpellCheckingEngine) {
+ return mozilla::SuggestionsPromise::CreateAndReject(NS_ERROR_NOT_AVAILABLE,
+ __func__);
+ }
+
+ bool correct;
+ nsresult rv = mSpellCheckingEngine->Check(aWord, &correct);
+ if (NS_FAILED(rv)) {
+ return mozilla::SuggestionsPromise::CreateAndReject(rv, __func__);
+ }
+ nsTArray<nsString> suggestions;
+ if (!correct) {
+ rv = mSpellCheckingEngine->Suggest(aWord, suggestions);
+ if (NS_FAILED(rv)) {
+ return mozilla::SuggestionsPromise::CreateAndReject(rv, __func__);
+ }
+ if (suggestions.Length() > aMaxCount) {
+ suggestions.TruncateLength(aMaxCount);
+ }
+ }
+ return mozilla::SuggestionsPromise::CreateAndResolve(std::move(suggestions),
+ __func__);
+}
+
+nsresult mozSpellChecker::Replace(const nsAString& aOldWord,
+ const nsAString& aNewWord,
+ bool aAllOccurrences) {
+ if (NS_WARN_IF(!mConverter)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ if (!aAllOccurrences) {
+ MOZ_KnownLive(mTextServicesDocument)->InsertText(aNewWord);
+ return NS_OK;
+ }
+
+ int32_t selOffset;
+ int32_t startBlock;
+ int32_t begin, end;
+ bool done;
+ nsresult result;
+
+ // find out where we are
+ result = SetupDoc(&selOffset);
+ if (NS_WARN_IF(NS_FAILED(result))) {
+ return result;
+ }
+ result = GetCurrentBlockIndex(mTextServicesDocument, &startBlock);
+ if (NS_WARN_IF(NS_FAILED(result))) {
+ return result;
+ }
+
+ // start at the beginning
+ result = mTextServicesDocument->FirstBlock();
+ if (NS_WARN_IF(NS_FAILED(result))) {
+ return result;
+ }
+ int32_t currOffset = 0;
+ int32_t currentBlock = 0;
+ int32_t wordLengthDifference =
+ AssertedCast<int32_t>(static_cast<int64_t>(aNewWord.Length()) -
+ static_cast<int64_t>(aOldWord.Length()));
+ while (NS_SUCCEEDED(mTextServicesDocument->IsDone(&done)) && !done) {
+ nsAutoString str;
+ mTextServicesDocument->GetCurrentTextBlock(str);
+ while (mConverter->FindNextWord(str, currOffset, &begin, &end)) {
+ if (aOldWord.Equals(Substring(str, begin, end - begin))) {
+ // if we are before the current selection point but in the same
+ // block move the selection point forwards
+ if (currentBlock == startBlock && begin < selOffset) {
+ selOffset += wordLengthDifference;
+ if (selOffset < begin) {
+ selOffset = begin;
+ }
+ }
+ // Don't keep running if selecting or inserting text fails because
+ // it may cause infinite loop.
+ if (NS_WARN_IF(NS_FAILED(
+ MOZ_KnownLive(mTextServicesDocument)
+ ->SetSelection(AssertedCast<uint32_t>(begin),
+ AssertedCast<uint32_t>(end - begin))))) {
+ return NS_ERROR_FAILURE;
+ }
+ if (NS_WARN_IF(NS_FAILED(
+ MOZ_KnownLive(mTextServicesDocument)->InsertText(aNewWord)))) {
+ return NS_ERROR_FAILURE;
+ }
+ mTextServicesDocument->GetCurrentTextBlock(str);
+ end += wordLengthDifference; // recursion was cute in GEB, not here.
+ }
+ currOffset = end;
+ }
+ mTextServicesDocument->NextBlock();
+ currentBlock++;
+ currOffset = 0;
+ }
+
+ // We are done replacing. Put the selection point back where we found it
+ // (or equivalent);
+ result = mTextServicesDocument->FirstBlock();
+ if (NS_WARN_IF(NS_FAILED(result))) {
+ return result;
+ }
+ currentBlock = 0;
+ while (NS_SUCCEEDED(mTextServicesDocument->IsDone(&done)) && !done &&
+ currentBlock < startBlock) {
+ mTextServicesDocument->NextBlock();
+ }
+
+ // After we have moved to the block where the first occurrence of replace
+ // was done, put the selection to the next word following it. In case there
+ // is no word following it i.e if it happens to be the last word in that
+ // block, then move to the next block and put the selection to the first
+ // word in that block, otherwise when the Setupdoc() is called, it queries
+ // the LastSelectedBlock() and the selection offset of the last occurrence
+ // of the replaced word is taken instead of the first occurrence and things
+ // get messed up as reported in the bug 244969
+
+ if (NS_SUCCEEDED(mTextServicesDocument->IsDone(&done)) && !done) {
+ nsAutoString str;
+ mTextServicesDocument->GetCurrentTextBlock(str);
+ if (mConverter->FindNextWord(str, selOffset, &begin, &end)) {
+ MOZ_KnownLive(mTextServicesDocument)
+ ->SetSelection(AssertedCast<uint32_t>(begin), 0);
+ return NS_OK;
+ }
+ mTextServicesDocument->NextBlock();
+ mTextServicesDocument->GetCurrentTextBlock(str);
+ if (mConverter->FindNextWord(str, 0, &begin, &end)) {
+ MOZ_KnownLive(mTextServicesDocument)
+ ->SetSelection(AssertedCast<uint32_t>(begin), 0);
+ }
+ }
+ return NS_OK;
+}
+
+nsresult mozSpellChecker::IgnoreAll(const nsAString& aWord) {
+ if (mPersonalDictionary) {
+ mPersonalDictionary->IgnoreWord(aWord);
+ }
+ return NS_OK;
+}
+
+nsresult mozSpellChecker::AddWordToPersonalDictionary(const nsAString& aWord) {
+ nsresult res;
+ if (NS_WARN_IF(!mPersonalDictionary)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ res = mPersonalDictionary->AddWord(aWord);
+ return res;
+}
+
+nsresult mozSpellChecker::RemoveWordFromPersonalDictionary(
+ const nsAString& aWord) {
+ nsresult res;
+ if (NS_WARN_IF(!mPersonalDictionary)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ res = mPersonalDictionary->RemoveWord(aWord);
+ return res;
+}
+
+nsresult mozSpellChecker::GetPersonalDictionary(nsTArray<nsString>* aWordList) {
+ if (!aWordList || !mPersonalDictionary) return NS_ERROR_NULL_POINTER;
+
+ nsCOMPtr<nsIStringEnumerator> words;
+ mPersonalDictionary->GetWordList(getter_AddRefs(words));
+
+ bool hasMore;
+ nsAutoString word;
+ while (NS_SUCCEEDED(words->HasMore(&hasMore)) && hasMore) {
+ words->GetNext(word);
+ aWordList->AppendElement(word);
+ }
+ return NS_OK;
+}
+
+nsresult mozSpellChecker::GetDictionaryList(
+ nsTArray<nsCString>* aDictionaryList) {
+ MOZ_ASSERT(aDictionaryList->IsEmpty());
+ if (XRE_IsContentProcess()) {
+ ContentChild* child = ContentChild::GetSingleton();
+ child->GetAvailableDictionaries(*aDictionaryList);
+ return NS_OK;
+ }
+
+ nsresult rv;
+
+ // For catching duplicates
+ nsTHashSet<nsCString> dictionaries;
+
+ nsCOMArray<mozISpellCheckingEngine> spellCheckingEngines;
+ rv = GetEngineList(&spellCheckingEngines);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ for (int32_t i = 0; i < spellCheckingEngines.Count(); i++) {
+ nsCOMPtr<mozISpellCheckingEngine> engine = spellCheckingEngines[i];
+
+ nsTArray<nsCString> dictNames;
+ engine->GetDictionaryList(dictNames);
+ for (auto& dictName : dictNames) {
+ // Skip duplicate dictionaries. Only take the first one
+ // for each name.
+ if (!dictionaries.EnsureInserted(dictName)) continue;
+
+ aDictionaryList->AppendElement(dictName);
+ }
+ }
+
+ return NS_OK;
+}
+
+nsresult mozSpellChecker::GetCurrentDictionaries(
+ nsTArray<nsCString>& aDictionaries) {
+ if (XRE_IsContentProcess()) {
+ aDictionaries = mCurrentDictionaries.Clone();
+ return NS_OK;
+ }
+
+ if (!mSpellCheckingEngine) {
+ aDictionaries.Clear();
+ return NS_OK;
+ }
+
+ return mSpellCheckingEngine->GetDictionaries(aDictionaries);
+}
+
+nsresult mozSpellChecker::SetCurrentDictionary(const nsACString& aDictionary) {
+ if (XRE_IsContentProcess()) {
+ mCurrentDictionaries.Clear();
+ bool isSuccess;
+ mEngine->SendSetDictionary(aDictionary, &isSuccess);
+ if (!isSuccess) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ mCurrentDictionaries.AppendElement(aDictionary);
+ return NS_OK;
+ }
+
+ // Calls to mozISpellCheckingEngine::SetDictionary might destroy us
+ RefPtr<mozSpellChecker> kungFuDeathGrip = this;
+
+ mSpellCheckingEngine = nullptr;
+
+ if (aDictionary.IsEmpty()) {
+ return NS_OK;
+ }
+
+ nsresult rv;
+ nsCOMArray<mozISpellCheckingEngine> spellCheckingEngines;
+ rv = GetEngineList(&spellCheckingEngines);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsTArray<nsCString> dictionaries;
+ dictionaries.AppendElement(aDictionary);
+ for (int32_t i = 0; i < spellCheckingEngines.Count(); i++) {
+ // We must set mSpellCheckingEngine before we call SetDictionaries, since
+ // SetDictionaries calls back to this spell checker to check if the
+ // dictionary was set
+ mSpellCheckingEngine = spellCheckingEngines[i];
+ rv = mSpellCheckingEngine->SetDictionaries(dictionaries);
+
+ if (NS_SUCCEEDED(rv)) {
+ nsCOMPtr<mozIPersonalDictionary> personalDictionary =
+ do_GetService("@mozilla.org/spellchecker/personaldictionary;1");
+ mSpellCheckingEngine->SetPersonalDictionary(personalDictionary);
+
+ mConverter = new mozEnglishWordUtils;
+ return NS_OK;
+ }
+ }
+
+ mSpellCheckingEngine = nullptr;
+
+ // We could not find any engine with the requested dictionary
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+RefPtr<GenericPromise> mozSpellChecker::SetCurrentDictionaries(
+ const nsTArray<nsCString>& aDictionaries) {
+ if (XRE_IsContentProcess()) {
+ if (!mEngine) {
+ mCurrentDictionaries.Clear();
+ return GenericPromise::CreateAndReject(NS_ERROR_NOT_AVAILABLE, __func__);
+ }
+
+ // mCurrentDictionaries will be set by RemoteSpellCheckEngineChild
+ return mEngine->SetCurrentDictionaries(aDictionaries);
+ }
+
+ // Calls to mozISpellCheckingEngine::SetDictionary might destroy us
+ RefPtr<mozSpellChecker> kungFuDeathGrip = this;
+
+ mSpellCheckingEngine = nullptr;
+
+ if (aDictionaries.IsEmpty()) {
+ return GenericPromise::CreateAndResolve(true, __func__);
+ }
+
+ nsresult rv;
+ nsCOMArray<mozISpellCheckingEngine> spellCheckingEngines;
+ rv = GetEngineList(&spellCheckingEngines);
+ if (NS_FAILED(rv)) {
+ return GenericPromise::CreateAndReject(rv, __func__);
+ }
+
+ for (int32_t i = 0; i < spellCheckingEngines.Count(); i++) {
+ // We must set mSpellCheckingEngine before we call SetDictionaries, since
+ // SetDictionaries calls back to this spell checker to check if the
+ // dictionary was set
+ mSpellCheckingEngine = spellCheckingEngines[i];
+ rv = mSpellCheckingEngine->SetDictionaries(aDictionaries);
+
+ if (NS_SUCCEEDED(rv)) {
+ mCurrentDictionaries = aDictionaries.Clone();
+
+ nsCOMPtr<mozIPersonalDictionary> personalDictionary =
+ do_GetService("@mozilla.org/spellchecker/personaldictionary;1");
+ mSpellCheckingEngine->SetPersonalDictionary(personalDictionary);
+
+ mConverter = new mozEnglishWordUtils;
+ return GenericPromise::CreateAndResolve(true, __func__);
+ }
+ }
+
+ mSpellCheckingEngine = nullptr;
+
+ // We could not find any engine with the requested dictionary
+ return GenericPromise::CreateAndReject(NS_ERROR_NOT_AVAILABLE, __func__);
+}
+
+RefPtr<GenericPromise> mozSpellChecker::SetCurrentDictionaryFromList(
+ const nsTArray<nsCString>& aList) {
+ if (aList.IsEmpty()) {
+ return GenericPromise::CreateAndReject(NS_ERROR_INVALID_ARG, __func__);
+ }
+
+ if (XRE_IsContentProcess()) {
+ if (!mEngine) {
+ mCurrentDictionaries.Clear();
+ return GenericPromise::CreateAndReject(NS_ERROR_NOT_AVAILABLE, __func__);
+ }
+
+ // mCurrentDictionaries will be set by RemoteSpellCheckEngineChild
+ return mEngine->SetCurrentDictionaryFromList(aList);
+ }
+
+ for (auto& dictionary : aList) {
+ nsresult rv = SetCurrentDictionary(dictionary);
+ if (NS_SUCCEEDED(rv)) {
+ return GenericPromise::CreateAndResolve(true, __func__);
+ }
+ }
+ // We could not find any engine with the requested dictionary
+ return GenericPromise::CreateAndReject(NS_ERROR_NOT_AVAILABLE, __func__);
+}
+
+nsresult mozSpellChecker::SetupDoc(int32_t* outBlockOffset) {
+ nsresult rv;
+
+ TextServicesDocument::BlockSelectionStatus blockStatus;
+ *outBlockOffset = 0;
+
+ if (!mFromStart) {
+ uint32_t selOffset, selLength;
+ rv = MOZ_KnownLive(mTextServicesDocument)
+ ->LastSelectedBlock(&blockStatus, &selOffset, &selLength);
+ if (NS_SUCCEEDED(rv) &&
+ blockStatus !=
+ TextServicesDocument::BlockSelectionStatus::eBlockNotFound) {
+ switch (blockStatus) {
+ // No TB in S, but found one before/after S.
+ case TextServicesDocument::BlockSelectionStatus::eBlockOutside:
+ // S begins or ends in TB but extends outside of TB.
+ case TextServicesDocument::BlockSelectionStatus::eBlockPartial:
+ // the TS doc points to the block we want.
+ if (NS_WARN_IF(selOffset == UINT32_MAX) ||
+ NS_WARN_IF(selLength == UINT32_MAX)) {
+ rv = mTextServicesDocument->FirstBlock();
+ *outBlockOffset = 0;
+ break;
+ }
+ *outBlockOffset = AssertedCast<int32_t>(selOffset + selLength);
+ break;
+
+ // S extends beyond the start and end of TB.
+ case TextServicesDocument::BlockSelectionStatus::eBlockInside:
+ // we want the block after this one.
+ rv = mTextServicesDocument->NextBlock();
+ *outBlockOffset = 0;
+ break;
+
+ // TB contains entire S.
+ case TextServicesDocument::BlockSelectionStatus::eBlockContains:
+ if (NS_WARN_IF(selOffset == UINT32_MAX) ||
+ NS_WARN_IF(selLength == UINT32_MAX)) {
+ rv = mTextServicesDocument->FirstBlock();
+ *outBlockOffset = 0;
+ break;
+ }
+ *outBlockOffset = AssertedCast<int32_t>(selOffset + selLength);
+ break;
+
+ // There is no text block (TB) in or before the selection (S).
+ case TextServicesDocument::BlockSelectionStatus::eBlockNotFound:
+ default:
+ MOZ_ASSERT_UNREACHABLE("Shouldn't ever get this status");
+ }
+ }
+ // Failed to get last sel block. Just start at beginning
+ else {
+ rv = mTextServicesDocument->FirstBlock();
+ *outBlockOffset = 0;
+ }
+
+ }
+ // We want the first block
+ else {
+ rv = mTextServicesDocument->FirstBlock();
+ mFromStart = false;
+ }
+ return rv;
+}
+
+// utility method to discover which block we're in. The TSDoc interface doesn't
+// give us this, because it can't assume a read-only document. shamelessly
+// stolen from nsTextServicesDocument
+nsresult mozSpellChecker::GetCurrentBlockIndex(
+ TextServicesDocument* aTextServicesDocument, int32_t* aOutBlockIndex) {
+ int32_t blockIndex = 0;
+ bool isDone = false;
+ nsresult result = NS_OK;
+
+ do {
+ aTextServicesDocument->PrevBlock();
+ result = aTextServicesDocument->IsDone(&isDone);
+ if (!isDone) {
+ blockIndex++;
+ }
+ } while (NS_SUCCEEDED(result) && !isDone);
+
+ *aOutBlockIndex = blockIndex;
+
+ return result;
+}
+
+nsresult mozSpellChecker::GetEngineList(
+ nsCOMArray<mozISpellCheckingEngine>* aSpellCheckingEngines) {
+ MOZ_ASSERT(!XRE_IsContentProcess());
+
+ nsresult rv;
+ bool hasMoreEngines;
+
+ nsCOMPtr<nsICategoryManager> catMgr =
+ do_GetService(NS_CATEGORYMANAGER_CONTRACTID);
+ if (!catMgr) return NS_ERROR_NULL_POINTER;
+
+ nsCOMPtr<nsISimpleEnumerator> catEntries;
+
+ // Get contract IDs of registrated external spell-check engines and
+ // append one of HunSpell at the end.
+ rv = catMgr->EnumerateCategory("spell-check-engine",
+ getter_AddRefs(catEntries));
+ if (NS_FAILED(rv)) return rv;
+
+ while (NS_SUCCEEDED(catEntries->HasMoreElements(&hasMoreEngines)) &&
+ hasMoreEngines) {
+ nsCOMPtr<nsISupports> elem;
+ rv = catEntries->GetNext(getter_AddRefs(elem));
+
+ nsCOMPtr<nsISupportsCString> entry = do_QueryInterface(elem, &rv);
+ if (NS_FAILED(rv)) return rv;
+
+ nsCString contractId;
+ rv = entry->GetData(contractId);
+ if (NS_FAILED(rv)) return rv;
+
+ // Try to load spellchecker engine. Ignore errors silently
+ // except for the last one (HunSpell).
+ nsCOMPtr<mozISpellCheckingEngine> engine =
+ do_GetService(contractId.get(), &rv);
+ if (NS_SUCCEEDED(rv)) {
+ aSpellCheckingEngines->AppendObject(engine);
+ }
+ }
+
+ // Try to load HunSpell spellchecker engine.
+ nsCOMPtr<mozISpellCheckingEngine> engine =
+ do_GetService(DEFAULT_SPELL_CHECKER, &rv);
+ if (NS_FAILED(rv)) {
+ // Fail if not succeeded to load HunSpell. Ignore errors
+ // for external spellcheck engines.
+ return rv;
+ }
+ aSpellCheckingEngines->AppendObject(engine);
+
+ return NS_OK;
+}
diff --git a/extensions/spellcheck/src/mozSpellChecker.h b/extensions/spellcheck/src/mozSpellChecker.h
new file mode 100644
index 0000000000..aec4a95d65
--- /dev/null
+++ b/extensions/spellcheck/src/mozSpellChecker.h
@@ -0,0 +1,197 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozSpellChecker_h__
+#define mozSpellChecker_h__
+
+#include "mozilla/MozPromise.h"
+#include "nsCOMPtr.h"
+#include "nsCOMArray.h"
+#include "nsString.h"
+#include "mozIPersonalDictionary.h"
+#include "mozISpellCheckingEngine.h"
+#include "nsClassHashtable.h"
+#include "nsTArray.h"
+#include "nsCycleCollectionParticipant.h"
+
+class mozEnglishWordUtils;
+
+namespace mozilla {
+class RemoteSpellcheckEngineChild;
+class TextServicesDocument;
+typedef MozPromise<CopyableTArray<bool>, nsresult, false> CheckWordPromise;
+typedef MozPromise<CopyableTArray<nsString>, nsresult, false>
+ SuggestionsPromise;
+} // namespace mozilla
+
+class mozSpellChecker final {
+ public:
+ NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(mozSpellChecker)
+ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(mozSpellChecker)
+
+ static already_AddRefed<mozSpellChecker> Create() {
+ RefPtr<mozSpellChecker> spellChecker = new mozSpellChecker();
+ nsresult rv = spellChecker->Init();
+ NS_ENSURE_SUCCESS(rv, nullptr);
+ return spellChecker.forget();
+ }
+
+ /**
+ * Tells the spellchecker what document to check.
+ * @param aDoc is the document to check.
+ * @param aFromStartOfDoc If true, start check from beginning of document,
+ * if false, start check from current cursor position.
+ */
+ nsresult SetDocument(mozilla::TextServicesDocument* aTextServicesDocument,
+ bool aFromStartofDoc);
+
+ /**
+ * Selects (hilites) the next misspelled word in the document.
+ * @param aWord will contain the misspelled word.
+ * @param aSuggestions is an array of nsStrings, that represent the
+ * suggested replacements for the misspelled word.
+ */
+ MOZ_CAN_RUN_SCRIPT
+ nsresult NextMisspelledWord(nsAString& aWord,
+ nsTArray<nsString>& aSuggestions);
+
+ /**
+ * Checks if a word is misspelled. No document is required to use this method.
+ * @param aWord is the word to check.
+ * @param aIsMisspelled will be set to true if the word is misspelled.
+ * @param aSuggestions is an array of nsStrings which represent the
+ * suggested replacements for the misspelled word. The array will be empty
+ * in chrome process if there aren't any suggestions. If suggestions is
+ * unnecessary, use CheckWords of async version.
+ */
+ nsresult CheckWord(const nsAString& aWord, bool* aIsMisspelled,
+ nsTArray<nsString>* aSuggestions);
+
+ /**
+ * This is a flavor of CheckWord, is async version of CheckWord.
+ * @Param aWords is array of words to check
+ */
+ RefPtr<mozilla::CheckWordPromise> CheckWords(
+ const nsTArray<nsString>& aWords);
+
+ /*
+ * Checks if a word is misspelled, then get suggestion words if existed.
+ */
+ RefPtr<mozilla::SuggestionsPromise> Suggest(const nsAString& aWord,
+ uint32_t aMaxCount);
+
+ /**
+ * Replaces the old word with the specified new word.
+ * @param aOldWord is the word to be replaced.
+ * @param aNewWord is the word that is to replace old word.
+ * @param aAllOccurrences will replace all occurrences of old
+ * word, in the document, with new word when it is true. If
+ * false, it will replace the 1st occurrence only!
+ */
+ MOZ_CAN_RUN_SCRIPT
+ nsresult Replace(const nsAString& aOldWord, const nsAString& aNewWord,
+ bool aAllOccurrences);
+
+ /**
+ * Ignores all occurrences of the specified word in the document.
+ * @param aWord is the word to ignore.
+ */
+ nsresult IgnoreAll(const nsAString& aWord);
+
+ /**
+ * Add a word to the user's personal dictionary.
+ * @param aWord is the word to add.
+ */
+ nsresult AddWordToPersonalDictionary(const nsAString& aWord);
+
+ /**
+ * Remove a word from the user's personal dictionary.
+ * @param aWord is the word to remove.
+ */
+ nsresult RemoveWordFromPersonalDictionary(const nsAString& aWord);
+
+ /**
+ * Returns the list of words in the user's personal dictionary.
+ * @param aWordList is an array of nsStrings that represent the
+ * list of words in the user's personal dictionary.
+ */
+ nsresult GetPersonalDictionary(nsTArray<nsString>* aWordList);
+
+ /**
+ * Returns the list of strings representing the dictionaries
+ * the spellchecker supports. It was suggested that the strings
+ * returned be in the RFC 1766 format. This format looks something
+ * like <ISO 639 language code>-<ISO 3166 country code>.
+ * For example: en-US
+ * @param aDictionaryList is an array of nsStrings that represent the
+ * dictionaries supported by the spellchecker.
+ */
+ nsresult GetDictionaryList(nsTArray<nsCString>* aDictionaryList);
+
+ /**
+ * Returns a string representing the current dictionaries.
+ * @param aDictionaries will contain the names of the dictionaries.
+ * This name is the same string that is in the list returned
+ * by GetDictionaryList().
+ */
+ nsresult GetCurrentDictionaries(nsTArray<nsCString>& aDictionaries);
+
+ /**
+ * Tells the spellchecker to use the specified dictionary.
+ * @param aDictionary a string that is in the list returned
+ * by GetDictionaryList() or an empty string . If aDictionary is
+ * an empty array, the spellchecker will be disabled.
+ */
+ nsresult SetCurrentDictionary(const nsACString& aDictionary);
+
+ /**
+ * Tells the spellchecker to use the specified dictionaries.
+ * @param aDictionaries an array of strings that is in the list returned
+ * by GetDictionaryList() or an empty array. If aDictionaries is
+ * an empty array, the spellchecker will be disabled.
+ */
+ RefPtr<mozilla::GenericPromise> SetCurrentDictionaries(
+ const nsTArray<nsCString>& aDictionaries);
+
+ /**
+ * Tells the spellchecker to use a specific dictionary from list.
+ * @param aList a preferred dictionary list
+ */
+ RefPtr<mozilla::GenericPromise> SetCurrentDictionaryFromList(
+ const nsTArray<nsCString>& aList);
+
+ void DeleteRemoteEngine() { mEngine = nullptr; }
+
+ mozilla::TextServicesDocument* GetTextServicesDocument();
+
+ protected:
+ mozSpellChecker();
+ virtual ~mozSpellChecker();
+
+ nsresult Init();
+
+ RefPtr<mozEnglishWordUtils> mConverter;
+ RefPtr<mozilla::TextServicesDocument> mTextServicesDocument;
+ nsCOMPtr<mozIPersonalDictionary> mPersonalDictionary;
+
+ nsCOMPtr<mozISpellCheckingEngine> mSpellCheckingEngine;
+ bool mFromStart;
+
+ nsTArray<nsCString> mCurrentDictionaries;
+
+ MOZ_CAN_RUN_SCRIPT
+ nsresult SetupDoc(int32_t* outBlockOffset);
+
+ nsresult GetCurrentBlockIndex(
+ mozilla::TextServicesDocument* aTextServicesDocument,
+ int32_t* aOutBlockIndex);
+
+ nsresult GetEngineList(nsCOMArray<mozISpellCheckingEngine>* aDictionaryList);
+
+ mozilla::RemoteSpellcheckEngineChild* mEngine;
+
+ friend class mozilla::RemoteSpellcheckEngineChild;
+};
+#endif // mozSpellChecker_h__
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 11:15:53 +0000