From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:22:09 +0200 Subject: Adding upstream version 110.0.1. Signed-off-by: Daniel Baumann --- editor/composer/nsEditingSession.cpp | 1299 ++++++++++++++++++++++++++++++++++ 1 file changed, 1299 insertions(+) create mode 100644 editor/composer/nsEditingSession.cpp (limited to 'editor/composer/nsEditingSession.cpp') diff --git a/editor/composer/nsEditingSession.cpp b/editor/composer/nsEditingSession.cpp new file mode 100644 index 0000000000..4cbd923f40 --- /dev/null +++ b/editor/composer/nsEditingSession.cpp @@ -0,0 +1,1299 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 sw=2 et tw=78: */ +/* 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 // for nullptr, strcmp + +#include "imgIContainer.h" // for imgIContainer, etc +#include "mozilla/ComposerCommandsUpdater.h" // for ComposerCommandsUpdater +#include "mozilla/FlushType.h" // for FlushType::Frames +#include "mozilla/HTMLEditor.h" // for HTMLEditor +#include "mozilla/mozalloc.h" // for operator new +#include "mozilla/PresShell.h" // for PresShell +#include "nsAString.h" +#include "nsBaseCommandController.h" // for nsBaseCommandController +#include "nsCommandManager.h" // for nsCommandManager +#include "nsComponentManagerUtils.h" // for do_CreateInstance +#include "nsContentUtils.h" +#include "nsDebug.h" // for NS_ENSURE_SUCCESS, etc +#include "nsDocShell.h" // for nsDocShell +#include "nsEditingSession.h" +#include "nsError.h" // for NS_ERROR_FAILURE, NS_OK, etc +#include "nsIChannel.h" // for nsIChannel +#include "nsIContentViewer.h" // for nsIContentViewer +#include "nsIControllers.h" // for nsIControllers +#include "nsID.h" // for NS_GET_IID, etc +#include "nsHTMLDocument.h" // for nsHTMLDocument +#include "nsIDocShell.h" // for nsIDocShell +#include "mozilla/dom/Document.h" // for Document +#include "nsIEditor.h" // for nsIEditor +#include "nsIInterfaceRequestorUtils.h" // for do_GetInterface +#include "nsIRefreshURI.h" // for nsIRefreshURI +#include "nsIRequest.h" // for nsIRequest +#include "nsITimer.h" // for nsITimer, etc +#include "nsIWeakReference.h" // for nsISupportsWeakReference, etc +#include "nsIWebNavigation.h" // for nsIWebNavigation +#include "nsIWebProgress.h" // for nsIWebProgress, etc +#include "nsLiteralString.h" // for NS_LITERAL_STRING +#include "nsPIDOMWindow.h" // for nsPIDOMWindow +#include "nsPresContext.h" // for nsPresContext +#include "nsReadableUtils.h" // for AppendUTF16toUTF8 +#include "nsStringFwd.h" // for nsString +#include "mozilla/dom/BrowsingContext.h" // for BrowsingContext +#include "mozilla/dom/Selection.h" // for AutoHideSelectionChanges, etc +#include "mozilla/dom/WindowContext.h" // for WindowContext +#include "nsFrameSelection.h" // for nsFrameSelection +#include "nsBaseCommandController.h" // for nsBaseCommandController +#include "mozilla/dom/LoadURIOptionsBinding.h" + +class nsISupports; +class nsIURI; + +using namespace mozilla; +using namespace mozilla::dom; + +/*--------------------------------------------------------------------------- + + nsEditingSession + +----------------------------------------------------------------------------*/ +nsEditingSession::nsEditingSession() + : mDoneSetup(false), + mCanCreateEditor(false), + mInteractive(false), + mMakeWholeDocumentEditable(true), + mDisabledJSAndPlugins(false), + mScriptsEnabled(true), + mPluginsEnabled(true), + mProgressListenerRegistered(false), + mImageAnimationMode(0), + mEditorFlags(0), + mEditorStatus(eEditorOK), + mBaseCommandControllerId(0), + mDocStateControllerId(0), + mHTMLCommandControllerId(0) {} + +/*--------------------------------------------------------------------------- + + ~nsEditingSession + +----------------------------------------------------------------------------*/ +nsEditingSession::~nsEditingSession() { + // Must cancel previous timer? + if (mLoadBlankDocTimer) mLoadBlankDocTimer->Cancel(); +} + +NS_IMPL_ISUPPORTS(nsEditingSession, nsIEditingSession, nsIWebProgressListener, + nsISupportsWeakReference) + +/*--------------------------------------------------------------------------- + + MakeWindowEditable + + aEditorType string, "html" "htmlsimple" "text" "textsimple" + void makeWindowEditable(in nsIDOMWindow aWindow, in string aEditorType, + in boolean aDoAfterUriLoad, + in boolean aMakeWholeDocumentEditable, + in boolean aInteractive); +----------------------------------------------------------------------------*/ +#define DEFAULT_EDITOR_TYPE "html" + +NS_IMETHODIMP +nsEditingSession::MakeWindowEditable(mozIDOMWindowProxy* aWindow, + const char* aEditorType, + bool aDoAfterUriLoad, + bool aMakeWholeDocumentEditable, + bool aInteractive) { + mEditorType.Truncate(); + mEditorFlags = 0; + + NS_ENSURE_TRUE(aWindow, NS_ERROR_FAILURE); + auto* window = nsPIDOMWindowOuter::From(aWindow); + + // disable plugins + nsCOMPtr docShell = window->GetDocShell(); + NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE); + mDocShell = do_GetWeakReference(docShell); + + mInteractive = aInteractive; + mMakeWholeDocumentEditable = aMakeWholeDocumentEditable; + + nsresult rv; + if (!mInteractive) { + rv = DisableJSAndPlugins(window->GetCurrentInnerWindow()); + NS_ENSURE_SUCCESS(rv, rv); + } + + // Always remove existing editor + TearDownEditorOnWindow(aWindow); + + // Tells embedder that startup is in progress + mEditorStatus = eEditorCreationInProgress; + + // temporary to set editor type here. we will need different classes soon. + if (!aEditorType) aEditorType = DEFAULT_EDITOR_TYPE; + mEditorType = aEditorType; + + // if all this does is setup listeners and I don't need listeners, + // can't this step be ignored?? (based on aDoAfterURILoad) + rv = PrepareForEditing(window); + NS_ENSURE_SUCCESS(rv, rv); + + // set the flag on the docShell to say that it's editable + rv = docShell->MakeEditable(aDoAfterUriLoad); + NS_ENSURE_SUCCESS(rv, rv); + + // Setup commands common to plaintext and html editors, + // including the document creation observers + // the first is an editing controller + rv = SetupEditorCommandController( + nsBaseCommandController::CreateEditingController, aWindow, + static_cast(this), &mBaseCommandControllerId); + NS_ENSURE_SUCCESS(rv, rv); + + // The second is a controller to monitor doc state, + // such as creation and "dirty flag" + rv = SetupEditorCommandController( + nsBaseCommandController::CreateHTMLEditorDocStateController, aWindow, + static_cast(this), &mDocStateControllerId); + NS_ENSURE_SUCCESS(rv, rv); + + // aDoAfterUriLoad can be false only when making an existing window editable + if (!aDoAfterUriLoad) { + rv = SetupEditorOnWindow(MOZ_KnownLive(*window)); + + // mEditorStatus is set to the error reason + // Since this is used only when editing an existing page, + // it IS ok to destroy current editor + if (NS_FAILED(rv)) { + TearDownEditorOnWindow(aWindow); + } + } + return rv; +} + +nsresult nsEditingSession::DisableJSAndPlugins(nsPIDOMWindowInner* aWindow) { + WindowContext* wc = aWindow->GetWindowContext(); + BrowsingContext* bc = wc->GetBrowsingContext(); + + mScriptsEnabled = wc->GetAllowJavascript(); + + MOZ_TRY(wc->SetAllowJavascript(false)); + + // Disable plugins in this document: + mPluginsEnabled = bc->GetAllowPlugins(); + + MOZ_TRY(bc->SetAllowPlugins(false)); + + mDisabledJSAndPlugins = true; + + return NS_OK; +} + +nsresult nsEditingSession::RestoreJSAndPlugins(nsPIDOMWindowInner* aWindow) { + if (!mDisabledJSAndPlugins) { + return NS_OK; + } + + mDisabledJSAndPlugins = false; + + if (NS_WARN_IF(!aWindow)) { + // DetachFromWindow may call this method with nullptr. + return NS_ERROR_FAILURE; + } + + WindowContext* wc = aWindow->GetWindowContext(); + BrowsingContext* bc = wc->GetBrowsingContext(); + + MOZ_TRY(wc->SetAllowJavascript(mScriptsEnabled)); + + // Disable plugins in this document: + + return bc->SetAllowPlugins(mPluginsEnabled); +} + +/*--------------------------------------------------------------------------- + + WindowIsEditable + + boolean windowIsEditable (in nsIDOMWindow aWindow); +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::WindowIsEditable(mozIDOMWindowProxy* aWindow, + bool* outIsEditable) { + NS_ENSURE_STATE(aWindow); + nsCOMPtr docShell = + nsPIDOMWindowOuter::From(aWindow)->GetDocShell(); + NS_ENSURE_STATE(docShell); + + return docShell->GetEditable(outIsEditable); +} + +bool IsSupportedTextType(const nsAString& aMIMEType) { + // These are MIME types that are automatically parsed as "text/plain" + // and thus we can edit them as plaintext + // Note: in older versions, we attempted to convert the mimetype of + // the network channel for these and "text/xml" to "text/plain", + // but further investigation reveals that strategy doesn't work + static constexpr nsLiteralString sSupportedTextTypes[] = { + u"text/plain"_ns, + u"text/css"_ns, + u"text/rdf"_ns, + u"text/xsl"_ns, + u"text/javascript"_ns, // obsolete type + u"text/ecmascript"_ns, // obsolete type + u"application/javascript"_ns, + u"application/ecmascript"_ns, + u"application/x-javascript"_ns, // obsolete type + u"text/xul"_ns // obsolete type + }; + + for (const nsLiteralString& supportedTextType : sSupportedTextTypes) { + if (aMIMEType.Equals(supportedTextType)) { + return true; + } + } + + return false; +} + +nsresult nsEditingSession::SetupEditorOnWindow(nsPIDOMWindowOuter& aWindow) { + mDoneSetup = true; + + // MIME CHECKING + // must get the content type + // Note: the doc gets this from the network channel during StartPageLoad, + // so we don't have to get it from there ourselves + nsAutoString mimeType; + + // then lets check the mime type + if (RefPtr doc = aWindow.GetDoc()) { + doc->GetContentType(mimeType); + + if (IsSupportedTextType(mimeType)) { + mEditorType.AssignLiteral("text"); + mimeType.AssignLiteral("text/plain"); + } else if (!doc->IsHTMLOrXHTML()) { + // Neither an acceptable text or html type. + mEditorStatus = eEditorErrorCantEditMimeType; + + // Turn editor into HTML -- we will load blank page later + mEditorType.AssignLiteral("html"); + mimeType.AssignLiteral("text/html"); + } + + // Flush out frame construction to make sure that the subframe's + // presshell is set up if it needs to be. + doc->FlushPendingNotifications(mozilla::FlushType::Frames); + if (mMakeWholeDocumentEditable) { + doc->SetEditableFlag(true); + // Enable usage of the execCommand API + doc->SetEditingState(Document::EditingState::eDesignMode); + } + } + bool needHTMLController = false; + + if (mEditorType.EqualsLiteral("textmail")) { + mEditorFlags = nsIEditor::eEditorPlaintextMask | + nsIEditor::eEditorEnableWrapHackMask | + nsIEditor::eEditorMailMask; + } else if (mEditorType.EqualsLiteral("text")) { + mEditorFlags = + nsIEditor::eEditorPlaintextMask | nsIEditor::eEditorEnableWrapHackMask; + } else if (mEditorType.EqualsLiteral("htmlmail")) { + if (mimeType.EqualsLiteral("text/html")) { + needHTMLController = true; + mEditorFlags = nsIEditor::eEditorMailMask; + } else { + // Set the flags back to textplain. + mEditorFlags = nsIEditor::eEditorPlaintextMask | + nsIEditor::eEditorEnableWrapHackMask; + } + } else { + // Defaulted to html + needHTMLController = true; + } + + if (mInteractive) { + mEditorFlags |= nsIEditor::eEditorAllowInteraction; + } + + // make the UI state maintainer + RefPtr commandsUpdater = + new ComposerCommandsUpdater(); + mComposerCommandsUpdater = commandsUpdater; + + // now init the state maintainer + // This allows notification of error state + // even if we don't create an editor + commandsUpdater->Init(aWindow); + + if (mEditorStatus != eEditorCreationInProgress) { + commandsUpdater->OnHTMLEditorCreated(); + + // At this point we have made a final decision that we don't support + // editing the current document. This is an internal failure state, but + // we return NS_OK to avoid throwing an exception from the designMode + // setter for web compatibility. The document editing APIs will tell the + // developer if editing has been disabled because we're in a document type + // that doesn't support editing. + return NS_OK; + } + + // Create editor and do other things + // only if we haven't found some error above, + const RefPtr docShell = nsDocShell::Cast(aWindow.GetDocShell()); + if (NS_WARN_IF(!docShell)) { + return NS_ERROR_FAILURE; + } + const RefPtr presShell = docShell->GetPresShell(); + if (NS_WARN_IF(!presShell)) { + return NS_ERROR_FAILURE; + } + + if (!mInteractive) { + // Disable animation of images in this document: + nsPresContext* presContext = presShell->GetPresContext(); + NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE); + + mImageAnimationMode = presContext->ImageAnimationMode(); + presContext->SetImageAnimationMode(imgIContainer::kDontAnimMode); + } + + // Hide selection changes during initialization, in order to hide this + // from web pages. + RefPtr fs = presShell->FrameSelection(); + NS_ENSURE_TRUE(fs, NS_ERROR_FAILURE); + AutoHideSelectionChanges hideSelectionChanges(fs); + + nsCOMPtr contentViewer; + nsresult rv = docShell->GetContentViewer(getter_AddRefs(contentViewer)); + if (NS_FAILED(rv) || NS_WARN_IF(!contentViewer)) { + NS_WARNING("nsDocShell::GetContentViewer() failed"); + return rv; + } + + const RefPtr doc = contentViewer->GetDocument(); + if (NS_WARN_IF(!doc)) { + return NS_ERROR_FAILURE; + } + + // create and set editor + // Try to reuse an existing editor + nsCOMPtr editor = do_QueryReferent(mExistingEditor); + RefPtr htmlEditor = HTMLEditor::GetFrom(editor); + MOZ_ASSERT_IF(editor, htmlEditor); + if (htmlEditor) { + htmlEditor->PreDestroy(); + } else { + htmlEditor = new HTMLEditor(*doc); + mExistingEditor = + do_GetWeakReference(static_cast(htmlEditor.get())); + } + // set the editor on the docShell. The docShell now owns it. + rv = docShell->SetHTMLEditor(htmlEditor); + NS_ENSURE_SUCCESS(rv, rv); + + // setup the HTML editor command controller + if (needHTMLController) { + // The third controller takes an nsIEditor as the context + rv = SetupEditorCommandController( + nsBaseCommandController::CreateHTMLEditorController, &aWindow, + static_cast(htmlEditor), &mHTMLCommandControllerId); + NS_ENSURE_SUCCESS(rv, rv); + } + + // Set mimetype on editor + rv = htmlEditor->SetContentsMIMEType(mimeType); + NS_ENSURE_SUCCESS(rv, rv); + + MOZ_ASSERT(docShell->HasContentViewer()); + MOZ_ASSERT(contentViewer->GetDocument()); + + MOZ_DIAGNOSTIC_ASSERT(commandsUpdater == mComposerCommandsUpdater); + if (MOZ_UNLIKELY(commandsUpdater != mComposerCommandsUpdater)) { + commandsUpdater = mComposerCommandsUpdater; + } + rv = htmlEditor->Init(*doc, *commandsUpdater, mEditorFlags); + NS_ENSURE_SUCCESS(rv, rv); + + RefPtr selection = htmlEditor->GetSelection(); + if (NS_WARN_IF(!selection)) { + return NS_ERROR_FAILURE; + } + + // Set context on all controllers to be the editor + rv = SetEditorOnControllers(aWindow, htmlEditor); + NS_ENSURE_SUCCESS(rv, rv); + + // Everything went fine! + mEditorStatus = eEditorOK; + + // This will trigger documentCreation notification + return htmlEditor->PostCreate(); +} + +// Removes all listeners and controllers from aWindow and aEditor. +void nsEditingSession::RemoveListenersAndControllers( + nsPIDOMWindowOuter* aWindow, HTMLEditor* aHTMLEditor) { + if (!mComposerCommandsUpdater || !aHTMLEditor) { + return; + } + + // Remove all the listeners + RefPtr composertCommandsUpdater = + std::move(mComposerCommandsUpdater); + MOZ_ASSERT(!mComposerCommandsUpdater); + aHTMLEditor->Detach(*composertCommandsUpdater); + + // Remove editor controllers from the window now that we're not + // editing in that window any more. + RemoveEditorControllers(aWindow); +} + +/*--------------------------------------------------------------------------- + + TearDownEditorOnWindow + + void tearDownEditorOnWindow (in nsIDOMWindow aWindow); +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::TearDownEditorOnWindow(mozIDOMWindowProxy* aWindow) { + if (!mDoneSetup) { + return NS_OK; + } + + NS_ENSURE_TRUE(aWindow, NS_ERROR_NULL_POINTER); + + // Kill any existing reload timer + if (mLoadBlankDocTimer) { + mLoadBlankDocTimer->Cancel(); + mLoadBlankDocTimer = nullptr; + } + + mDoneSetup = false; + + // Check if we're turning off editing (from contentEditable or designMode). + auto* window = nsPIDOMWindowOuter::From(aWindow); + + RefPtr doc = window->GetDoc(); + bool stopEditing = doc && doc->IsEditingOn(); + if (stopEditing) { + RemoveWebProgressListener(window); + } + + nsCOMPtr docShell = window->GetDocShell(); + NS_ENSURE_STATE(docShell); + + RefPtr htmlEditor = docShell->GetHTMLEditor(); + if (stopEditing) { + doc->TearingDownEditor(); + } + + if (mComposerCommandsUpdater && htmlEditor) { + // Null out the editor on the controllers first to prevent their weak + // references from pointing to a destroyed editor. + SetEditorOnControllers(*window, nullptr); + } + + // Null out the editor on the docShell to trigger PreDestroy which + // needs to happen before document state listeners are removed below. + docShell->SetEditor(nullptr); + + RemoveListenersAndControllers(window, htmlEditor); + + if (stopEditing) { + // Make things the way they were before we started editing. + RestoreJSAndPlugins(window->GetCurrentInnerWindow()); + RestoreAnimationMode(window); + + if (mMakeWholeDocumentEditable) { + doc->SetEditableFlag(false); + doc->SetEditingState(Document::EditingState::eOff); + } + } + + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + GetEditorForFrame + + nsIEditor getEditorForFrame (in nsIDOMWindow aWindow); +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::GetEditorForWindow(mozIDOMWindowProxy* aWindow, + nsIEditor** outEditor) { + if (NS_WARN_IF(!aWindow)) { + return NS_ERROR_INVALID_ARG; + } + nsCOMPtr editor = GetHTMLEditorForWindow(aWindow); + editor.forget(outEditor); + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + OnStateChange + +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::OnStateChange(nsIWebProgress* aWebProgress, + nsIRequest* aRequest, uint32_t aStateFlags, + nsresult aStatus) { +#ifdef NOISY_DOC_LOADING + nsCOMPtr channel(do_QueryInterface(aRequest)); + if (channel) { + nsAutoCString contentType; + channel->GetContentType(contentType); + if (!contentType.IsEmpty()) { + printf(" ++++++ MIMETYPE = %s\n", contentType.get()); + } + } +#endif + + // + // A Request has started... + // + if (aStateFlags & nsIWebProgressListener::STATE_START) { +#ifdef NOISY_DOC_LOADING + { + nsCOMPtr channel(do_QueryInterface(aRequest)); + if (channel) { + nsCOMPtr uri; + channel->GetURI(getter_AddRefs(uri)); + if (uri) { + nsCString spec; + uri->GetSpec(spec); + printf(" **** STATE_START: CHANNEL URI=%s, flags=%x\n", spec.get(), + aStateFlags); + } + } else { + printf(" STATE_START: NO CHANNEL flags=%x\n", aStateFlags); + } + } +#endif + // Page level notification... + if (aStateFlags & nsIWebProgressListener::STATE_IS_NETWORK) { + nsCOMPtr channel(do_QueryInterface(aRequest)); + StartPageLoad(channel); +#ifdef NOISY_DOC_LOADING + printf("STATE_START & STATE_IS_NETWORK flags=%x\n", aStateFlags); +#endif + } + + // Document level notification... + if (aStateFlags & nsIWebProgressListener::STATE_IS_DOCUMENT && + !(aStateFlags & nsIWebProgressListener::STATE_RESTORING)) { +#ifdef NOISY_DOC_LOADING + printf("STATE_START & STATE_IS_DOCUMENT flags=%x\n", aStateFlags); +#endif + + bool progressIsForTargetDocument = + IsProgressForTargetDocument(aWebProgress); + + if (progressIsForTargetDocument) { + nsCOMPtr window; + aWebProgress->GetDOMWindow(getter_AddRefs(window)); + + auto* piWindow = nsPIDOMWindowOuter::From(window); + RefPtr doc = piWindow->GetDoc(); + nsHTMLDocument* htmlDoc = + doc && doc->IsHTMLOrXHTML() ? doc->AsHTMLDocument() : nullptr; + if (htmlDoc && doc->IsWriting()) { + nsAutoString designMode; + htmlDoc->GetDesignMode(designMode); + + if (designMode.EqualsLiteral("on")) { + // This notification is for data coming in through + // document.open/write/close(), ignore it. + + return NS_OK; + } + } + + mCanCreateEditor = true; + StartDocumentLoad(aWebProgress, progressIsForTargetDocument); + } + } + } + // + // A Request is being processed + // + else if (aStateFlags & nsIWebProgressListener::STATE_TRANSFERRING) { + if (aStateFlags & nsIWebProgressListener::STATE_IS_DOCUMENT) { + // document transfer started + } + } + // + // Got a redirection + // + else if (aStateFlags & nsIWebProgressListener::STATE_REDIRECTING) { + if (aStateFlags & nsIWebProgressListener::STATE_IS_DOCUMENT) { + // got a redirect + } + } + // + // A network or document Request has finished... + // + else if (aStateFlags & nsIWebProgressListener::STATE_STOP) { +#ifdef NOISY_DOC_LOADING + { + nsCOMPtr channel(do_QueryInterface(aRequest)); + if (channel) { + nsCOMPtr uri; + channel->GetURI(getter_AddRefs(uri)); + if (uri) { + nsCString spec; + uri->GetSpec(spec); + printf(" **** STATE_STOP: CHANNEL URI=%s, flags=%x\n", spec.get(), + aStateFlags); + } + } else { + printf(" STATE_STOP: NO CHANNEL flags=%x\n", aStateFlags); + } + } +#endif + + // Document level notification... + if (aStateFlags & nsIWebProgressListener::STATE_IS_DOCUMENT) { + nsCOMPtr channel = do_QueryInterface(aRequest); + EndDocumentLoad(aWebProgress, channel, aStatus, + IsProgressForTargetDocument(aWebProgress)); +#ifdef NOISY_DOC_LOADING + printf("STATE_STOP & STATE_IS_DOCUMENT flags=%x\n", aStateFlags); +#endif + } + + // Page level notification... + if (aStateFlags & nsIWebProgressListener::STATE_IS_NETWORK) { + nsCOMPtr channel = do_QueryInterface(aRequest); + (void)EndPageLoad(aWebProgress, channel, aStatus); +#ifdef NOISY_DOC_LOADING + printf("STATE_STOP & STATE_IS_NETWORK flags=%x\n", aStateFlags); +#endif + } + } + + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + OnProgressChange + +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::OnProgressChange(nsIWebProgress* aWebProgress, + nsIRequest* aRequest, + int32_t aCurSelfProgress, + int32_t aMaxSelfProgress, + int32_t aCurTotalProgress, + int32_t aMaxTotalProgress) { + MOZ_ASSERT_UNREACHABLE("notification excluded in AddProgressListener(...)"); + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + OnLocationChange + +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::OnLocationChange(nsIWebProgress* aWebProgress, + nsIRequest* aRequest, nsIURI* aURI, + uint32_t aFlags) { + nsCOMPtr domWindow; + nsresult rv = aWebProgress->GetDOMWindow(getter_AddRefs(domWindow)); + NS_ENSURE_SUCCESS(rv, rv); + + auto* piWindow = nsPIDOMWindowOuter::From(domWindow); + + RefPtr doc = piWindow->GetDoc(); + NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE); + + doc->SetDocumentURI(aURI); + + // Notify the location-changed observer that + // the document URL has changed + nsIDocShell* docShell = piWindow->GetDocShell(); + NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE); + + RefPtr commandManager = docShell->GetCommandManager(); + commandManager->CommandStatusChanged("obs_documentLocationChanged"); + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + OnStatusChange + +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::OnStatusChange(nsIWebProgress* aWebProgress, + nsIRequest* aRequest, nsresult aStatus, + const char16_t* aMessage) { + MOZ_ASSERT_UNREACHABLE("notification excluded in AddProgressListener(...)"); + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + OnSecurityChange + +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::OnSecurityChange(nsIWebProgress* aWebProgress, + nsIRequest* aRequest, uint32_t aState) { + MOZ_ASSERT_UNREACHABLE("notification excluded in AddProgressListener(...)"); + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + OnContentBlockingEvent + +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::OnContentBlockingEvent(nsIWebProgress* aWebProgress, + nsIRequest* aRequest, + uint32_t aEvent) { + MOZ_ASSERT_UNREACHABLE("notification excluded in AddProgressListener(...)"); + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + IsProgressForTargetDocument + + Check that this notification is for our document. +----------------------------------------------------------------------------*/ + +bool nsEditingSession::IsProgressForTargetDocument( + nsIWebProgress* aWebProgress) { + nsCOMPtr editedWebProgress = do_QueryReferent(mDocShell); + return editedWebProgress == aWebProgress; +} + +/*--------------------------------------------------------------------------- + + GetEditorStatus + + Called during GetCommandStateParams("obs_documentCreated"...) + to determine if editor was created and document + was loaded successfully +----------------------------------------------------------------------------*/ +NS_IMETHODIMP +nsEditingSession::GetEditorStatus(uint32_t* aStatus) { + NS_ENSURE_ARG_POINTER(aStatus); + *aStatus = mEditorStatus; + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + StartDocumentLoad + + Called on start of load in a single frame +----------------------------------------------------------------------------*/ +nsresult nsEditingSession::StartDocumentLoad(nsIWebProgress* aWebProgress, + bool aIsToBeMadeEditable) { +#ifdef NOISY_DOC_LOADING + printf("======= StartDocumentLoad ========\n"); +#endif + + NS_ENSURE_ARG_POINTER(aWebProgress); + + if (aIsToBeMadeEditable) { + mEditorStatus = eEditorCreationInProgress; + } + + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + EndDocumentLoad + + Called on end of load in a single frame +----------------------------------------------------------------------------*/ +nsresult nsEditingSession::EndDocumentLoad(nsIWebProgress* aWebProgress, + nsIChannel* aChannel, + nsresult aStatus, + bool aIsToBeMadeEditable) { + NS_ENSURE_ARG_POINTER(aWebProgress); + +#ifdef NOISY_DOC_LOADING + printf("======= EndDocumentLoad ========\n"); + printf("with status %d, ", aStatus); + nsCOMPtr uri; + nsCString spec; + if (NS_SUCCEEDED(aChannel->GetURI(getter_AddRefs(uri)))) { + uri->GetSpec(spec); + printf(" uri %s\n", spec.get()); + } +#endif + + // We want to call the base class EndDocumentLoad, + // but avoid some of the stuff + // that nsDocShell does (need to refactor). + + // OK, time to make an editor on this document + nsCOMPtr domWindow; + aWebProgress->GetDOMWindow(getter_AddRefs(domWindow)); + NS_ENSURE_TRUE(domWindow, NS_ERROR_FAILURE); + + // Set the error state -- we will create an editor + // anyway and load empty doc later + if (aIsToBeMadeEditable && aStatus == NS_ERROR_FILE_NOT_FOUND) { + mEditorStatus = eEditorErrorFileNotFound; + } + + auto* window = nsPIDOMWindowOuter::From(domWindow); + nsIDocShell* docShell = window->GetDocShell(); + NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE); // better error handling? + + // cancel refresh from meta tags + // we need to make sure that all pages in editor (whether editable or not) + // can't refresh contents being edited + nsCOMPtr refreshURI = do_QueryInterface(docShell); + if (refreshURI) { + refreshURI->CancelRefreshURITimers(); + } + + nsresult rv = NS_OK; + + // did someone set the flag to make this shell editable? + if (aIsToBeMadeEditable && mCanCreateEditor) { + bool makeEditable; + docShell->GetEditable(&makeEditable); + + if (makeEditable) { + // To keep pre Gecko 1.9 behavior, setup editor always when + // mMakeWholeDocumentEditable. + bool needsSetup = false; + if (mMakeWholeDocumentEditable) { + needsSetup = true; + } else { + // do we already have an editor here? + needsSetup = !docShell->GetHTMLEditor(); + } + + if (needsSetup) { + mCanCreateEditor = false; + rv = SetupEditorOnWindow(MOZ_KnownLive(*window)); + if (NS_FAILED(rv)) { + // If we had an error, setup timer to load a blank page later + if (mLoadBlankDocTimer) { + // Must cancel previous timer? + mLoadBlankDocTimer->Cancel(); + mLoadBlankDocTimer = nullptr; + } + + rv = NS_NewTimerWithFuncCallback(getter_AddRefs(mLoadBlankDocTimer), + nsEditingSession::TimerCallback, + static_cast(mDocShell.get()), + 10, nsITimer::TYPE_ONE_SHOT, + "nsEditingSession::EndDocumentLoad"); + NS_ENSURE_SUCCESS(rv, rv); + + mEditorStatus = eEditorCreationInProgress; + } + } + } + } + return rv; +} + +void nsEditingSession::TimerCallback(nsITimer* aTimer, void* aClosure) { + nsCOMPtr docShell = + do_QueryReferent(static_cast(aClosure)); + if (docShell) { + nsCOMPtr webNav(do_QueryInterface(docShell)); + if (webNav) { + LoadURIOptions loadURIOptions; + loadURIOptions.mTriggeringPrincipal = + nsContentUtils::GetSystemPrincipal(); + webNav->LoadURI(u"about:blank"_ns, loadURIOptions); + } + } +} + +/*--------------------------------------------------------------------------- + + StartPageLoad + + Called on start load of the entire page (incl. subframes) +----------------------------------------------------------------------------*/ +nsresult nsEditingSession::StartPageLoad(nsIChannel* aChannel) { +#ifdef NOISY_DOC_LOADING + printf("======= StartPageLoad ========\n"); +#endif + return NS_OK; +} + +/*--------------------------------------------------------------------------- + + EndPageLoad + + Called on end load of the entire page (incl. subframes) +----------------------------------------------------------------------------*/ +nsresult nsEditingSession::EndPageLoad(nsIWebProgress* aWebProgress, + nsIChannel* aChannel, nsresult aStatus) { +#ifdef NOISY_DOC_LOADING + printf("======= EndPageLoad ========\n"); + printf(" with status %d, ", aStatus); + nsCOMPtr uri; + nsCString spec; + if (NS_SUCCEEDED(aChannel->GetURI(getter_AddRefs(uri)))) { + uri->GetSpec(spec); + printf("uri %s\n", spec.get()); + } + + nsAutoCString contentType; + aChannel->GetContentType(contentType); + if (!contentType.IsEmpty()) { + printf(" flags = %d, status = %d, MIMETYPE = %s\n", mEditorFlags, + mEditorStatus, contentType.get()); + } +#endif + + // Set the error state -- we will create an editor anyway + // and load empty doc later + if (aStatus == NS_ERROR_FILE_NOT_FOUND) { + mEditorStatus = eEditorErrorFileNotFound; + } + + nsCOMPtr domWindow; + aWebProgress->GetDOMWindow(getter_AddRefs(domWindow)); + + nsIDocShell* docShell = + domWindow ? nsPIDOMWindowOuter::From(domWindow)->GetDocShell() : nullptr; + NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE); + + // cancel refresh from meta tags + // we need to make sure that all pages in editor (whether editable or not) + // can't refresh contents being edited + nsCOMPtr refreshURI = do_QueryInterface(docShell); + if (refreshURI) { + refreshURI->CancelRefreshURITimers(); + } + +#if 0 + // Shouldn't we do this when we want to edit sub-frames? + return MakeWindowEditable(domWindow, "html", false, mInteractive); +#else + return NS_OK; +#endif +} + +/*--------------------------------------------------------------------------- + + PrepareForEditing + + Set up this editing session for one or more editors +----------------------------------------------------------------------------*/ +nsresult nsEditingSession::PrepareForEditing(nsPIDOMWindowOuter* aWindow) { + if (mProgressListenerRegistered) { + return NS_OK; + } + + nsIDocShell* docShell = aWindow ? aWindow->GetDocShell() : nullptr; + + // register callback + nsCOMPtr webProgress = do_GetInterface(docShell); + NS_ENSURE_TRUE(webProgress, NS_ERROR_FAILURE); + + nsresult rv = webProgress->AddProgressListener( + this, (nsIWebProgress::NOTIFY_STATE_NETWORK | + nsIWebProgress::NOTIFY_STATE_DOCUMENT | + nsIWebProgress::NOTIFY_LOCATION)); + + mProgressListenerRegistered = NS_SUCCEEDED(rv); + + return rv; +} + +/*--------------------------------------------------------------------------- + + SetupEditorCommandController + + Create a command controller, append to controllers, + get and return the controller ID, and set the context +----------------------------------------------------------------------------*/ +nsresult nsEditingSession::SetupEditorCommandController( + nsEditingSession::ControllerCreatorFn aControllerCreatorFn, + mozIDOMWindowProxy* aWindow, nsISupports* aContext, + uint32_t* aControllerId) { + NS_ENSURE_ARG_POINTER(aControllerCreatorFn); + NS_ENSURE_ARG_POINTER(aWindow); + NS_ENSURE_ARG_POINTER(aContext); + NS_ENSURE_ARG_POINTER(aControllerId); + + auto* piWindow = nsPIDOMWindowOuter::From(aWindow); + MOZ_ASSERT(piWindow); + + nsCOMPtr controllers; + nsresult rv = piWindow->GetControllers(getter_AddRefs(controllers)); + NS_ENSURE_SUCCESS(rv, rv); + + // We only have to create each singleton controller once + // We know this has happened once we have a controllerId value + if (!*aControllerId) { + RefPtr commandController = aControllerCreatorFn(); + NS_ENSURE_TRUE(commandController, NS_ERROR_FAILURE); + + // We must insert at head of the list to be sure our + // controller is found before other implementations + // (e.g., not-implemented versions by browser) + rv = controllers->InsertControllerAt(0, commandController); + NS_ENSURE_SUCCESS(rv, rv); + + // Remember the ID for the controller + rv = controllers->GetControllerId(commandController, aControllerId); + NS_ENSURE_SUCCESS(rv, rv); + } + + // Set the context + return SetContextOnControllerById(controllers, aContext, *aControllerId); +} + +nsresult nsEditingSession::SetEditorOnControllers(nsPIDOMWindowOuter& aWindow, + HTMLEditor* aEditor) { + nsCOMPtr controllers; + nsresult rv = aWindow.GetControllers(getter_AddRefs(controllers)); + NS_ENSURE_SUCCESS(rv, rv); + + nsCOMPtr editorAsISupports = static_cast(aEditor); + if (mBaseCommandControllerId) { + rv = SetContextOnControllerById(controllers, editorAsISupports, + mBaseCommandControllerId); + NS_ENSURE_SUCCESS(rv, rv); + } + + if (mDocStateControllerId) { + rv = SetContextOnControllerById(controllers, editorAsISupports, + mDocStateControllerId); + NS_ENSURE_SUCCESS(rv, rv); + } + + if (mHTMLCommandControllerId) { + rv = SetContextOnControllerById(controllers, editorAsISupports, + mHTMLCommandControllerId); + } + + return rv; +} + +nsresult nsEditingSession::SetContextOnControllerById( + nsIControllers* aControllers, nsISupports* aContext, uint32_t aID) { + NS_ENSURE_ARG_POINTER(aControllers); + + // aContext can be null (when destroying editor) + nsCOMPtr controller; + aControllers->GetControllerById(aID, getter_AddRefs(controller)); + + // ok with nil controller + nsCOMPtr editorController = + do_QueryInterface(controller); + NS_ENSURE_TRUE(editorController, NS_ERROR_FAILURE); + + return editorController->SetCommandContext(aContext); +} + +void nsEditingSession::RemoveEditorControllers(nsPIDOMWindowOuter* aWindow) { + // Remove editor controllers from the aWindow, call when we're + // tearing down/detaching editor. + + nsCOMPtr controllers; + if (aWindow) { + aWindow->GetControllers(getter_AddRefs(controllers)); + } + + if (controllers) { + nsCOMPtr controller; + if (mBaseCommandControllerId) { + controllers->GetControllerById(mBaseCommandControllerId, + getter_AddRefs(controller)); + if (controller) { + controllers->RemoveController(controller); + } + } + + if (mDocStateControllerId) { + controllers->GetControllerById(mDocStateControllerId, + getter_AddRefs(controller)); + if (controller) { + controllers->RemoveController(controller); + } + } + + if (mHTMLCommandControllerId) { + controllers->GetControllerById(mHTMLCommandControllerId, + getter_AddRefs(controller)); + if (controller) { + controllers->RemoveController(controller); + } + } + } + + // Clear IDs to trigger creation of new controllers. + mBaseCommandControllerId = 0; + mDocStateControllerId = 0; + mHTMLCommandControllerId = 0; +} + +void nsEditingSession::RemoveWebProgressListener(nsPIDOMWindowOuter* aWindow) { + nsIDocShell* docShell = aWindow ? aWindow->GetDocShell() : nullptr; + nsCOMPtr webProgress = do_GetInterface(docShell); + if (webProgress) { + webProgress->RemoveProgressListener(this); + mProgressListenerRegistered = false; + } +} + +void nsEditingSession::RestoreAnimationMode(nsPIDOMWindowOuter* aWindow) { + if (mInteractive) { + return; + } + + nsCOMPtr docShell = aWindow ? aWindow->GetDocShell() : nullptr; + NS_ENSURE_TRUE_VOID(docShell); + RefPtr presShell = docShell->GetPresShell(); + if (NS_WARN_IF(!presShell)) { + return; + } + nsPresContext* presContext = presShell->GetPresContext(); + NS_ENSURE_TRUE_VOID(presContext); + + presContext->SetImageAnimationMode(mImageAnimationMode); +} + +nsresult nsEditingSession::DetachFromWindow(nsPIDOMWindowOuter* aWindow) { + NS_ENSURE_TRUE(mDoneSetup, NS_OK); + + NS_ASSERTION(mComposerCommandsUpdater, + "mComposerCommandsUpdater should exist."); + + // Kill any existing reload timer + if (mLoadBlankDocTimer) { + mLoadBlankDocTimer->Cancel(); + mLoadBlankDocTimer = nullptr; + } + + // Remove controllers, webprogress listener, and otherwise + // make things the way they were before we started editing. + RemoveEditorControllers(aWindow); + RemoveWebProgressListener(aWindow); + RestoreJSAndPlugins(aWindow->GetCurrentInnerWindow()); + RestoreAnimationMode(aWindow); + + // Kill our weak reference to our original window, in case + // it changes on restore, or otherwise dies. + mDocShell = nullptr; + + return NS_OK; +} + +nsresult nsEditingSession::ReattachToWindow(nsPIDOMWindowOuter* aWindow) { + NS_ENSURE_TRUE(mDoneSetup, NS_OK); + NS_ENSURE_TRUE(aWindow, NS_ERROR_FAILURE); + + NS_ASSERTION(mComposerCommandsUpdater, + "mComposerCommandsUpdater should exist."); + + // Imitate nsEditorDocShell::MakeEditable() to reattach the + // old editor to the window. + nsresult rv; + + nsIDocShell* docShell = aWindow->GetDocShell(); + NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE); + mDocShell = do_GetWeakReference(docShell); + + // Disable plugins. + if (!mInteractive) { + rv = DisableJSAndPlugins(aWindow->GetCurrentInnerWindow()); + NS_ENSURE_SUCCESS(rv, rv); + } + + // Tells embedder that startup is in progress. + mEditorStatus = eEditorCreationInProgress; + + // Adds back web progress listener. + rv = PrepareForEditing(aWindow); + NS_ENSURE_SUCCESS(rv, rv); + + // Setup the command controllers again. + rv = SetupEditorCommandController( + nsBaseCommandController::CreateEditingController, aWindow, + static_cast(this), &mBaseCommandControllerId); + NS_ENSURE_SUCCESS(rv, rv); + + rv = SetupEditorCommandController( + nsBaseCommandController::CreateHTMLEditorDocStateController, aWindow, + static_cast(this), &mDocStateControllerId); + NS_ENSURE_SUCCESS(rv, rv); + + if (mComposerCommandsUpdater) { + mComposerCommandsUpdater->Init(*aWindow); + } + + // Get editor + RefPtr htmlEditor = GetHTMLEditorForWindow(aWindow); + if (NS_WARN_IF(!htmlEditor)) { + return NS_ERROR_FAILURE; + } + + if (!mInteractive) { + // Disable animation of images in this document: + RefPtr presShell = docShell->GetPresShell(); + if (NS_WARN_IF(!presShell)) { + return NS_ERROR_FAILURE; + } + nsPresContext* presContext = presShell->GetPresContext(); + NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE); + + mImageAnimationMode = presContext->ImageAnimationMode(); + presContext->SetImageAnimationMode(imgIContainer::kDontAnimMode); + } + + // The third controller takes an nsIEditor as the context + rv = SetupEditorCommandController( + nsBaseCommandController::CreateHTMLEditorController, aWindow, + static_cast(htmlEditor.get()), &mHTMLCommandControllerId); + NS_ENSURE_SUCCESS(rv, rv); + + // Set context on all controllers to be the editor + rv = SetEditorOnControllers(*aWindow, htmlEditor); + NS_ENSURE_SUCCESS(rv, rv); + +#ifdef DEBUG + { + bool isEditable; + rv = WindowIsEditable(aWindow, &isEditable); + NS_ENSURE_SUCCESS(rv, rv); + NS_ASSERTION(isEditable, + "Window is not editable after reattaching editor."); + } +#endif // DEBUG + + return NS_OK; +} + +HTMLEditor* nsIEditingSession::GetHTMLEditorForWindow( + mozIDOMWindowProxy* aWindow) { + if (NS_WARN_IF(!aWindow)) { + return nullptr; + } + + nsCOMPtr docShell = + nsPIDOMWindowOuter::From(aWindow)->GetDocShell(); + if (NS_WARN_IF(!docShell)) { + return nullptr; + } + + return docShell->GetHTMLEditor(); +} -- cgit v1.2.3