Merging upstream version 125.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 254 insertions, 0 deletions

diff --git a/widget/uikit/TextInputHandler.mm b/widget/uikit/TextInputHandler.mm
new file mode 100644
index 0000000000..9a4a6ae226
--- /dev/null
+++ b/widget/uikit/TextInputHandler.mm
@@ -0,0 +1,254 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 sw=2 et 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 "TextInputHandler.h"
+
+#import <UIKit/UIKit.h>
+
+#include "mozilla/EventForwards.h"
+#include "mozilla/Logging.h"
+#include "mozilla/MiscEvents.h"
+#include "mozilla/TextEventDispatcher.h"
+#include "mozilla/TextEvents.h"
+#include "mozilla/WidgetUtils.h"
+#include "nsIWidget.h"
+#include "nsObjCExceptions.h"
+#include "nsString.h"
+#include "nsWindow.h"
+
+mozilla::LazyLogModule gIMELog("TextInputHandler");
+
+namespace mozilla::widget {
+
+static void GetStringForNSString(const NSString* aSrc, nsAString& aDist) {
+  NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+  if (!aSrc) {
+    aDist.Truncate();
+    return;
+  }
+
+  aDist.SetLength([aSrc length]);
+  [aSrc getCharacters:reinterpret_cast<unichar*>(aDist.BeginWriting())
+                range:NSMakeRange(0, [aSrc length])];
+
+  NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+NS_IMPL_ISUPPORTS(TextInputHandler, TextEventDispatcherListener,
+                  nsISupportsWeakReference)
+
+TextInputHandler::TextInputHandler(nsWindow* aWidget)
+    : mWidget(aWidget), mDispatcher(aWidget->GetTextEventDispatcher()) {}
+
+nsresult TextInputHandler::NotifyIME(TextEventDispatcher* aTextEventDispatcher,
+                                     const IMENotification& aNotification) {
+  return NS_OK;
+}
+
+IMENotificationRequests TextInputHandler::GetIMENotificationRequests() {
+  return IMENotificationRequests();
+}
+
+void TextInputHandler::OnRemovedFrom(
+    TextEventDispatcher* aTextEventDispatcher) {}
+
+void TextInputHandler::WillDispatchKeyboardEvent(
+    TextEventDispatcher* aTextEventDispatcher,
+    WidgetKeyboardEvent& aKeyboardEvent, uint32_t aIndexOfKeypress,
+    void* aData) {}
+
+bool TextInputHandler::InsertText(NSString* aText) {
+  nsString str;
+  GetStringForNSString(aText, str);
+
+  MOZ_LOG(gIMELog, LogLevel::Info,
+          ("%p TextInputHandler::InsertText(aText=%s)", this,
+           NS_ConvertUTF16toUTF8(str).get()));
+
+  if (Destroyed()) {
+    return false;
+  }
+
+  if (str.Length() == 1) {
+    char16_t charCode = str[0];
+    if (charCode == 0x0a) {
+      return EmulateKeyboardEvent(NS_VK_RETURN, KEY_NAME_INDEX_Enter, charCode);
+    }
+    if (charCode == 0x08) {
+      return EmulateKeyboardEvent(NS_VK_BACK, KEY_NAME_INDEX_Backspace,
+                                  charCode);
+    }
+    if (uint32_t keyCode = WidgetUtils::ComputeKeyCodeFromChar(charCode)) {
+      return EmulateKeyboardEvent(keyCode, KEY_NAME_INDEX_USE_STRING, charCode);
+    }
+  }
+
+  nsEventStatus status = nsEventStatus_eIgnore;
+  RefPtr<nsWindow> widget(mWidget);
+  if (!DispatchKeyDownEvent(NS_VK_PROCESSKEY, KEY_NAME_INDEX_Process, 0,
+                            status)) {
+    return false;
+  }
+  if (Destroyed()) {
+    return false;
+  }
+
+  mDispatcher->CommitComposition(status, &str, nullptr);
+  if (widget->Destroyed()) {
+    return false;
+  }
+
+  DispatchKeyUpEvent(NS_VK_PROCESSKEY, KEY_NAME_INDEX_Process, 0, status);
+
+  return true;
+}
+
+bool TextInputHandler::HandleCommand(Command aCommand) {
+  MOZ_LOG(gIMELog, LogLevel::Info,
+          ("%p   TextInputHandler::HandleCommand, aCommand=%s", this,
+           ToChar(aCommand)));
+
+  if (Destroyed()) {
+    return false;
+  }
+
+  if (aCommand != Command::DeleteCharBackward) {
+    return false;
+  }
+
+  nsEventStatus status = nsEventStatus_eIgnore;
+  if (!DispatchKeyDownEvent(NS_VK_BACK, KEY_NAME_INDEX_Backspace, 0, status)) {
+    return true;
+  }
+  if (Destroyed() || status == nsEventStatus_eConsumeNoDefault) {
+    return true;
+  }
+
+  // TODO: Focus check
+
+  if (!DispatchKeyPressEvent(NS_VK_BACK, KEY_NAME_INDEX_Backspace, 0, status)) {
+    return true;
+  }
+  if (Destroyed() || status == nsEventStatus_eConsumeNoDefault) {
+    return true;
+  }
+
+  // TODO: Focus check
+
+  DispatchKeyUpEvent(NS_VK_BACK, KEY_NAME_INDEX_Backspace, 0, status);
+
+  return true;
+}
+
+static uint32_t ComputeKeyModifiers(uint32_t aCharCode) {
+  if (aCharCode >= 'A' && aCharCode <= 'Z') {
+    return MODIFIER_SHIFT;
+  }
+  return 0;
+}
+
+static void InitKeyEvent(WidgetKeyboardEvent& aEvent, uint32_t aKeyCode,
+                         KeyNameIndex aKeyNameIndex, char16_t aCharCode) {
+  aEvent.mKeyCode = aKeyCode;
+  aEvent.mIsRepeat = false;
+  aEvent.mKeyNameIndex = aKeyNameIndex;
+  // TODO(m_kato):
+  // How to get native key? Then, implement NativeKeyToDOM*.h for iOS
+  aEvent.mCodeNameIndex = CODE_NAME_INDEX_UNKNOWN;
+  if (aEvent.mKeyNameIndex == KEY_NAME_INDEX_USE_STRING) {
+    aEvent.mKeyValue = aCharCode;
+  }
+  aEvent.mModifiers = ComputeKeyModifiers(aCharCode);
+  aEvent.mLocation = eKeyLocationStandard;
+  aEvent.mTimeStamp = TimeStamp::Now();
+}
+
+bool TextInputHandler::DispatchKeyDownEvent(uint32_t aKeyCode,
+                                            KeyNameIndex aKeyNameIndex,
+                                            char16_t aCharCode,
+                                            nsEventStatus& aStatus) {
+  MOZ_ASSERT(aKeyCode);
+  MOZ_ASSERT(mWidget);
+
+  WidgetKeyboardEvent keydownEvent(true, eKeyDown, mWidget);
+  InitKeyEvent(keydownEvent, aKeyCode, aKeyNameIndex, aCharCode);
+  nsresult rv = mDispatcher->BeginNativeInputTransaction();
+  if (NS_FAILED(rv)) {
+    NS_WARNING("BeginNativeInputTransaction is failed");
+    return false;
+  }
+  return mDispatcher->DispatchKeyboardEvent(eKeyDown, keydownEvent, aStatus);
+}
+
+bool TextInputHandler::DispatchKeyUpEvent(uint32_t aKeyCode,
+                                          KeyNameIndex aKeyNameIndex,
+                                          char16_t aCharCode,
+                                          nsEventStatus& aStatus) {
+  MOZ_ASSERT(aKeyCode);
+  MOZ_ASSERT(mWidget);
+
+  WidgetKeyboardEvent keyupEvent(true, eKeyUp, mWidget);
+  InitKeyEvent(keyupEvent, aKeyCode, aKeyNameIndex, aCharCode);
+  nsresult rv = mDispatcher->BeginNativeInputTransaction();
+  if (NS_FAILED(rv)) {
+    NS_WARNING("BeginNativeInputTransaction is failed");
+    return false;
+  }
+  return mDispatcher->DispatchKeyboardEvent(eKeyUp, keyupEvent, aStatus);
+}
+
+bool TextInputHandler::DispatchKeyPressEvent(uint32_t aKeyCode,
+                                             KeyNameIndex aKeyNameIndex,
+                                             char16_t aCharCode,
+                                             nsEventStatus& aStatus) {
+  MOZ_ASSERT(aKeyCode);
+  MOZ_ASSERT(mWidget);
+
+  WidgetKeyboardEvent keypressEvent(true, eKeyPress, mWidget);
+  InitKeyEvent(keypressEvent, aKeyCode, aKeyNameIndex, aCharCode);
+  nsresult rv = mDispatcher->BeginNativeInputTransaction();
+  if (NS_FAILED(rv)) {
+    NS_WARNING("BeginNativeInputTransaction is failed");
+    return false;
+  }
+  return mDispatcher->MaybeDispatchKeypressEvents(keypressEvent, aStatus);
+}
+
+bool TextInputHandler::EmulateKeyboardEvent(uint32_t aKeyCode,
+                                            KeyNameIndex aKeyNameIndex,
+                                            char16_t aCharCode) {
+  MOZ_ASSERT(aCharCode);
+
+  MOZ_LOG(gIMELog, LogLevel::Info,
+          ("%p TextInputHandler::EmulateKeyboardEvent(aKeyCode=%x, "
+           "aKeyNameIndex=%x, aCharCode=%x)",
+           this, aKeyCode, aKeyNameIndex, aCharCode));
+
+  nsEventStatus status = nsEventStatus_eIgnore;
+  if (!DispatchKeyDownEvent(aKeyCode, aKeyNameIndex, aCharCode, status)) {
+    return true;
+  }
+  if (Destroyed() || status == nsEventStatus_eConsumeNoDefault) {
+    return true;
+  }
+  // TODO: Focus check
+
+  if (!DispatchKeyPressEvent(aKeyCode, aKeyNameIndex, aCharCode, status)) {
+    return true;
+  }
+  if (Destroyed() || status == nsEventStatus_eConsumeNoDefault) {
+    return true;
+  }
+  // TODO: Focus check
+
+  DispatchKeyUpEvent(aKeyCode, aKeyNameIndex, aCharCode, status);
+  return true;
+}
+
+void TextInputHandler::OnDestroyed() { mWidget = nullptr; }
+
+}  // namespace mozilla::widget