Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 109 insertions, 0 deletions

diff --git a/dom/html/TextInputListener.h b/dom/html/TextInputListener.h
new file mode 100644
index 0000000000..6b923e00be
--- /dev/null
+++ b/dom/html/TextInputListener.h
@@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et 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/. */
+
+#ifndef mozilla_TextInputListener_h
+#define mozilla_TextInputListener_h
+
+#include "mozilla/WeakPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIDOMEventListener.h"
+#include "nsStringFwd.h"
+#include "nsWeakReference.h"
+
+class nsIFrame;
+class nsTextControlFrame;
+
+namespace mozilla {
+class TextControlElement;
+class TextControlState;
+class TextEditor;
+
+namespace dom {
+class Selection;
+}  // namespace dom
+
+class TextInputListener final : public nsIDOMEventListener,
+                                public nsSupportsWeakReference {
+ public:
+  explicit TextInputListener(TextControlElement* aTextControlElement);
+
+  void SetFrame(nsIFrame* aTextControlFrame) { mFrame = aTextControlFrame; }
+  void SettingValue(bool aValue) { mSettingValue = aValue; }
+  void SetValueChanged(bool aSetValueChanged) {
+    mSetValueChanged = aSetValueChanged;
+  }
+
+  /**
+   * aFrame is an optional pointer to our frame, if not passed the method will
+   * use mFrame to compute it lazily.
+   */
+  void HandleValueChanged(TextEditor&);
+
+  /**
+   * OnEditActionHandled() is called when the editor handles each edit action.
+   */
+  [[nodiscard]] MOZ_CAN_RUN_SCRIPT nsresult OnEditActionHandled(TextEditor&);
+
+  /**
+   * OnSelectionChange() is called when selection is changed in the editor.
+   */
+  MOZ_CAN_RUN_SCRIPT
+  void OnSelectionChange(dom::Selection& aSelection, int16_t aReason);
+
+  /**
+   * Start to listen or end listening to selection change in the editor.
+   */
+  void StartToListenToSelectionChange() { mListeningToSelectionChange = true; }
+  void EndListeningToSelectionChange() { mListeningToSelectionChange = false; }
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(TextInputListener,
+                                           nsIDOMEventListener)
+  NS_DECL_NSIDOMEVENTLISTENER
+
+ protected:
+  virtual ~TextInputListener() = default;
+
+  nsresult UpdateTextInputCommands(const nsAString& aCommandsToUpdate,
+                                   dom::Selection* aSelection = nullptr,
+                                   int16_t aReason = 0);
+
+ protected:
+  nsIFrame* mFrame;
+  TextControlElement* const mTxtCtrlElement;
+  WeakPtr<TextControlState> const mTextControlState;
+
+  bool mSelectionWasCollapsed;
+
+  /**
+   * Whether we had undo items or not the last time we got EditAction()
+   * notification (when this state changes we update undo and redo menus)
+   */
+  bool mHadUndoItems;
+  /**
+   * Whether we had redo items or not the last time we got EditAction()
+   * notification (when this state changes we update undo and redo menus)
+   */
+  bool mHadRedoItems;
+  /**
+   * Whether we're in the process of a SetValue call, and should therefore
+   * refrain from calling OnValueChanged.
+   */
+  bool mSettingValue;
+  /**
+   * Whether we are in the process of a SetValue call that doesn't want
+   * |SetValueChanged| to be called.
+   */
+  bool mSetValueChanged;
+  /**
+   * Whether we're listening to selection change in the editor.
+   */
+  bool mListeningToSelectionChange;
+};
+
+}  // namespace mozilla
+
+#endif  // #ifndef mozilla_TextInputListener_h