forked from mirrors/gecko-dev
678b10493d
Should be much simpler and doesn't need to deal with the different stuff. We already have pseudo-classes for this, :autofill and :placeholder-shown. I initially wrote this because this is the only limitation that forces us to have the placeholder text as a direct child of the text control frame. In the end I kept that as-is, but this simplification is still worth it. We remove dom.placeholder.show_on_focus because it doesn't behave correctly (it doesn't match the :placeholder-shown pseudo-class and it should). It was introduced in bug 807613 and never turned to false by default. I suspect nobody will miss this, but if somebody complains about it we can reintroduce it properly (handling the pref in DOM instead, changing the right state bits). Differential Revision: https://phabricator.services.mozilla.com/D108304
110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_TextInputListener_h
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#define mozilla_TextInputListener_h
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#include "mozilla/WeakPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIDOMEventListener.h"
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#include "nsStringFwd.h"
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#include "nsWeakReference.h"
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class nsIFrame;
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class nsTextControlFrame;
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namespace mozilla {
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class TextControlElement;
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class TextControlState;
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class TextEditor;
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namespace dom {
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class Selection;
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} // namespace dom
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class TextInputListener final : public nsIDOMEventListener,
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public nsSupportsWeakReference {
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public:
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explicit TextInputListener(TextControlElement* aTextControlElement);
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void SetFrame(nsIFrame* aTextControlFrame) { mFrame = aTextControlFrame; }
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void SettingValue(bool aValue) { mSettingValue = aValue; }
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void SetValueChanged(bool aSetValueChanged) {
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mSetValueChanged = aSetValueChanged;
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}
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/**
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* aFrame is an optional pointer to our frame, if not passed the method will
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* use mFrame to compute it lazily.
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*/
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void HandleValueChanged();
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/**
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* OnEditActionHandled() is called when the editor handles each edit action.
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*/
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[[nodiscard]] MOZ_CAN_RUN_SCRIPT nsresult
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OnEditActionHandled(TextEditor& aTextEditor);
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/**
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* OnSelectionChange() is called when selection is changed in the editor.
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*/
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MOZ_CAN_RUN_SCRIPT
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void OnSelectionChange(dom::Selection& aSelection, int16_t aReason);
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/**
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* Start to listen or end listening to selection change in the editor.
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*/
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void StartToListenToSelectionChange() { mListeningToSelectionChange = true; }
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void EndListeningToSelectionChange() { mListeningToSelectionChange = false; }
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(TextInputListener,
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nsIDOMEventListener)
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NS_DECL_NSIDOMEVENTLISTENER
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protected:
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virtual ~TextInputListener() = default;
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nsresult UpdateTextInputCommands(const nsAString& aCommandsToUpdate,
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dom::Selection* aSelection = nullptr,
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int16_t aReason = 0);
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protected:
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nsIFrame* mFrame;
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TextControlElement* const mTxtCtrlElement;
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WeakPtr<TextControlState> const mTextControlState;
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bool mSelectionWasCollapsed;
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/**
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* Whether we had undo items or not the last time we got EditAction()
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* notification (when this state changes we update undo and redo menus)
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*/
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bool mHadUndoItems;
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/**
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* Whether we had redo items or not the last time we got EditAction()
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* notification (when this state changes we update undo and redo menus)
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*/
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bool mHadRedoItems;
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/**
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* Whether we're in the process of a SetValue call, and should therefore
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* refrain from calling OnValueChanged.
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*/
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bool mSettingValue;
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/**
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* Whether we are in the process of a SetValue call that doesn't want
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* |SetValueChanged| to be called.
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*/
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bool mSetValueChanged;
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/**
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* Whether we're listening to selection change in the editor.
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*/
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bool mListeningToSelectionChange;
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};
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} // namespace mozilla
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#endif // #ifndef mozilla_TextInputListener_h
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