mirror of
https://github.com/mozilla/gecko-dev.git
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df8ff2d9ac
Also, simplify some callers of `GetScrollTargetFrame()` to drop `nsIScrollableFrame*` and unnecessary `do_QueryFrame`. We'll continue removing more `nsIScrollableFrame*` in later parts. Differential Revision: https://phabricator.services.mozilla.com/D211490
3085 lines
108 KiB
C++
3085 lines
108 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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#include "TextControlState.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/CaretAssociationHint.h"
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#include "mozilla/IMEContentObserver.h"
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#include "mozilla/IMEStateManager.h"
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#include "mozilla/TextInputListener.h"
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#include "nsCOMPtr.h"
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#include "nsView.h"
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#include "nsCaret.h"
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#include "nsITextControlFrame.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsTextControlFrame.h"
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#include "nsIControllers.h"
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#include "nsIControllerContext.h"
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#include "nsAttrValue.h"
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#include "nsAttrValueInlines.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIDOMEventListener.h"
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#include "nsIWidget.h"
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#include "nsIDocumentEncoder.h"
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#include "nsPIDOMWindow.h"
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#include "nsServiceManagerUtils.h"
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#include "mozilla/dom/Selection.h"
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#include "mozilla/EventListenerManager.h"
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#include "nsContentUtils.h"
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#include "mozilla/Preferences.h"
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#include "nsTextNode.h"
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#include "nsIController.h"
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#include "mozilla/AutoRestore.h"
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#include "mozilla/InputEventOptions.h"
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#include "mozilla/NativeKeyBindingsType.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/ScrollContainerFrame.h"
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#include "mozilla/TextEvents.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/HTMLInputElement.h"
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#include "mozilla/dom/HTMLTextAreaElement.h"
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#include "mozilla/dom/Text.h"
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#include "mozilla/StaticPrefs_dom.h"
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#include "mozilla/StaticPrefs_ui.h"
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#include "nsFrameSelection.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/ShortcutKeys.h"
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#include "mozilla/KeyEventHandler.h"
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#include "mozilla/dom/KeyboardEvent.h"
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#include "mozilla/ScrollTypes.h"
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namespace mozilla {
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using namespace dom;
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using ValueSetterOption = TextControlState::ValueSetterOption;
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using ValueSetterOptions = TextControlState::ValueSetterOptions;
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using SelectionDirection = nsITextControlFrame::SelectionDirection;
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/*****************************************************************************
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* TextControlElement
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*****************************************************************************/
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NS_IMPL_CYCLE_COLLECTION_CLASS(TextControlElement)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(
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TextControlElement, nsGenericHTMLFormControlElementWithState)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(
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TextControlElement, nsGenericHTMLFormControlElementWithState)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(
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TextControlElement, nsGenericHTMLFormControlElementWithState)
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/*static*/
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bool TextControlElement::GetWrapPropertyEnum(
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nsIContent* aContent, TextControlElement::nsHTMLTextWrap& aWrapProp) {
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// soft is the default; "physical" defaults to soft as well because all other
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// browsers treat it that way and there is no real reason to maintain physical
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// and virtual as separate entities if no one else does. Only hard and off
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// do anything different.
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aWrapProp = eHTMLTextWrap_Soft; // the default
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if (!aContent->IsHTMLElement()) {
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return false;
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}
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static mozilla::dom::Element::AttrValuesArray strings[] = {
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nsGkAtoms::HARD, nsGkAtoms::OFF, nullptr};
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switch (aContent->AsElement()->FindAttrValueIn(
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kNameSpaceID_None, nsGkAtoms::wrap, strings, eIgnoreCase)) {
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case 0:
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aWrapProp = eHTMLTextWrap_Hard;
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break;
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case 1:
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aWrapProp = eHTMLTextWrap_Off;
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break;
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}
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return true;
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}
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/*static*/
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already_AddRefed<TextControlElement>
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TextControlElement::GetTextControlElementFromEditingHost(nsIContent* aHost) {
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if (!aHost) {
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return nullptr;
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}
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RefPtr<TextControlElement> parent =
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TextControlElement::FromNodeOrNull(aHost->GetParent());
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return parent.forget();
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}
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TextControlElement::FocusTristate TextControlElement::FocusState() {
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// We can't be focused if we aren't in a (composed) document
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Document* doc = GetComposedDoc();
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if (!doc) {
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return FocusTristate::eUnfocusable;
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}
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// first see if we are disabled or not. If disabled then do nothing.
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if (IsDisabled()) {
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return FocusTristate::eUnfocusable;
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}
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return IsInActiveTab(doc) ? FocusTristate::eActiveWindow
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: FocusTristate::eInactiveWindow;
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}
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using ValueChangeKind = TextControlElement::ValueChangeKind;
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MOZ_CAN_RUN_SCRIPT inline nsresult SetEditorFlagsIfNecessary(
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EditorBase& aEditorBase, uint32_t aFlags) {
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if (aEditorBase.Flags() == aFlags) {
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return NS_OK;
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}
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return aEditorBase.SetFlags(aFlags);
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}
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/*****************************************************************************
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* mozilla::AutoInputEventSuppresser
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*****************************************************************************/
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class MOZ_STACK_CLASS AutoInputEventSuppresser final {
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public:
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explicit AutoInputEventSuppresser(TextEditor* aTextEditor)
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: mTextEditor(aTextEditor),
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// To protect against a reentrant call to SetValue, we check whether
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// another SetValue is already happening for this editor. If it is,
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// we must wait until we unwind to re-enable oninput events.
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mOuterTransaction(aTextEditor->IsSuppressingDispatchingInputEvent()) {
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MOZ_ASSERT(mTextEditor);
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mTextEditor->SuppressDispatchingInputEvent(true);
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}
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~AutoInputEventSuppresser() {
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mTextEditor->SuppressDispatchingInputEvent(mOuterTransaction);
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}
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private:
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RefPtr<TextEditor> mTextEditor;
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bool mOuterTransaction;
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};
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/*****************************************************************************
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* mozilla::RestoreSelectionState
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*****************************************************************************/
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class RestoreSelectionState : public Runnable {
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public:
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RestoreSelectionState(TextControlState* aState, nsTextControlFrame* aFrame)
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: Runnable("RestoreSelectionState"),
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mFrame(aFrame),
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mTextControlState(aState) {}
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MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override {
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if (!mTextControlState) {
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return NS_OK;
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}
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AutoHideSelectionChanges hideSelectionChanges(
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mFrame->GetConstFrameSelection());
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if (mFrame) {
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// EnsureEditorInitialized and SetSelectionRange leads to
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// Selection::AddRangeAndSelectFramesAndNotifyListeners which flushes
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// Layout - need to block script to avoid nested PrepareEditor calls (bug
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// 642800).
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nsAutoScriptBlocker scriptBlocker;
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mFrame->EnsureEditorInitialized();
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TextControlState::SelectionProperties& properties =
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mTextControlState->GetSelectionProperties();
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if (properties.IsDirty()) {
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mFrame->SetSelectionRange(properties.GetStart(), properties.GetEnd(),
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properties.GetDirection());
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}
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}
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if (mTextControlState) {
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mTextControlState->FinishedRestoringSelection();
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}
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return NS_OK;
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}
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// Let the text editor tell us we're no longer relevant - avoids use of
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// AutoWeakFrame
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void Revoke() {
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mFrame = nullptr;
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mTextControlState = nullptr;
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}
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private:
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nsTextControlFrame* mFrame;
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TextControlState* mTextControlState;
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};
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/*****************************************************************************
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* mozilla::AutoRestoreEditorState
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*****************************************************************************/
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class MOZ_RAII AutoRestoreEditorState final {
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public:
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MOZ_CAN_RUN_SCRIPT explicit AutoRestoreEditorState(TextEditor* aTextEditor)
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: mTextEditor(aTextEditor),
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mSavedFlags(mTextEditor->Flags()),
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mSavedMaxLength(mTextEditor->MaxTextLength()),
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mSavedEchoingPasswordPrevented(
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mTextEditor->EchoingPasswordPrevented()) {
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MOZ_ASSERT(mTextEditor);
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// EditorBase::SetFlags() is a virtual method. Even though it does nothing
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// if new flags and current flags are same, the calling cost causes
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// appearing the method in profile. So, this class should check if it's
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// necessary to call.
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uint32_t flags = mSavedFlags;
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flags &= ~nsIEditor::eEditorReadonlyMask;
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if (mSavedFlags != flags) {
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// It's aTextEditor and whose lifetime must be guaranteed by the caller.
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MOZ_KnownLive(mTextEditor)->SetFlags(flags);
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}
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mTextEditor->PreventToEchoPassword();
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mTextEditor->SetMaxTextLength(-1);
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}
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MOZ_CAN_RUN_SCRIPT ~AutoRestoreEditorState() {
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if (!mSavedEchoingPasswordPrevented) {
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mTextEditor->AllowToEchoPassword();
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}
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mTextEditor->SetMaxTextLength(mSavedMaxLength);
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// mTextEditor's lifetime must be guaranteed by owner of the instance
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// since the constructor is marked as `MOZ_CAN_RUN_SCRIPT` and this is
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// a stack only class.
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SetEditorFlagsIfNecessary(MOZ_KnownLive(*mTextEditor), mSavedFlags);
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}
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private:
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TextEditor* mTextEditor;
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uint32_t mSavedFlags;
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int32_t mSavedMaxLength;
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bool mSavedEchoingPasswordPrevented;
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};
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/*****************************************************************************
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* mozilla::AutoDisableUndo
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*****************************************************************************/
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class MOZ_RAII AutoDisableUndo final {
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public:
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explicit AutoDisableUndo(TextEditor* aTextEditor)
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: mTextEditor(aTextEditor), mNumberOfMaximumTransactions(0) {
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MOZ_ASSERT(mTextEditor);
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mNumberOfMaximumTransactions =
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mTextEditor ? mTextEditor->NumberOfMaximumTransactions() : 0;
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DebugOnly<bool> disabledUndoRedo = mTextEditor->DisableUndoRedo();
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NS_WARNING_ASSERTION(disabledUndoRedo,
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"Failed to disable undo/redo transactions");
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}
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~AutoDisableUndo() {
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// Don't change enable/disable of undo/redo if it's enabled after
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// it's disabled by the constructor because we shouldn't change
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// the maximum undo/redo count to the old value.
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if (mTextEditor->IsUndoRedoEnabled()) {
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return;
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}
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// If undo/redo was enabled, mNumberOfMaximumTransactions is -1 or lager
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// than 0. Only when it's 0, it was disabled.
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if (mNumberOfMaximumTransactions) {
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DebugOnly<bool> enabledUndoRedo =
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mTextEditor->EnableUndoRedo(mNumberOfMaximumTransactions);
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NS_WARNING_ASSERTION(enabledUndoRedo,
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"Failed to enable undo/redo transactions");
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} else {
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DebugOnly<bool> disabledUndoRedo = mTextEditor->DisableUndoRedo();
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NS_WARNING_ASSERTION(disabledUndoRedo,
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"Failed to disable undo/redo transactions");
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}
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}
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private:
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TextEditor* mTextEditor;
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int32_t mNumberOfMaximumTransactions;
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};
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static bool SuppressEventHandlers(nsPresContext* aPresContext) {
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bool suppressHandlers = false;
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if (aPresContext) {
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// Right now we only suppress event handlers and controller manipulation
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// when in a print preview or print context!
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// In the current implementation, we only paginate when
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// printing or in print preview.
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suppressHandlers = aPresContext->IsPaginated();
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}
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return suppressHandlers;
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}
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/*****************************************************************************
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* mozilla::TextInputSelectionController
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*****************************************************************************/
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class TextInputSelectionController final : public nsSupportsWeakReference,
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public nsISelectionController {
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~TextInputSelectionController() = default;
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(TextInputSelectionController,
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nsISelectionController)
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TextInputSelectionController(PresShell* aPresShell, nsIContent* aLimiter);
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void SetScrollContainerFrame(ScrollContainerFrame* aScrollContainerFrame);
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nsFrameSelection* GetConstFrameSelection() { return mFrameSelection; }
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// Will return null if !mFrameSelection.
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Selection* GetSelection(SelectionType aSelectionType);
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// NSISELECTIONCONTROLLER INTERFACES
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NS_IMETHOD SetDisplaySelection(int16_t toggle) override;
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NS_IMETHOD GetDisplaySelection(int16_t* _retval) override;
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NS_IMETHOD SetSelectionFlags(int16_t aInEnable) override;
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NS_IMETHOD GetSelectionFlags(int16_t* aOutEnable) override;
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NS_IMETHOD GetSelectionFromScript(RawSelectionType aRawSelectionType,
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Selection** aSelection) override;
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Selection* GetSelection(RawSelectionType aRawSelectionType) override;
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NS_IMETHOD ScrollSelectionIntoView(RawSelectionType aRawSelectionType,
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int16_t aRegion, int16_t aFlags) override;
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NS_IMETHOD RepaintSelection(RawSelectionType aRawSelectionType) override;
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nsresult RepaintSelection(nsPresContext* aPresContext,
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SelectionType aSelectionType);
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NS_IMETHOD SetCaretEnabled(bool enabled) override;
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NS_IMETHOD SetCaretReadOnly(bool aReadOnly) override;
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NS_IMETHOD GetCaretEnabled(bool* _retval) override;
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NS_IMETHOD GetCaretVisible(bool* _retval) override;
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NS_IMETHOD SetCaretVisibilityDuringSelection(bool aVisibility) override;
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NS_IMETHOD PhysicalMove(int16_t aDirection, int16_t aAmount,
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bool aExtend) override;
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NS_IMETHOD CharacterMove(bool aForward, bool aExtend) override;
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NS_IMETHOD WordMove(bool aForward, bool aExtend) override;
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MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD LineMove(bool aForward,
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bool aExtend) override;
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NS_IMETHOD IntraLineMove(bool aForward, bool aExtend) override;
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MOZ_CAN_RUN_SCRIPT
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NS_IMETHOD PageMove(bool aForward, bool aExtend) override;
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NS_IMETHOD CompleteScroll(bool aForward) override;
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MOZ_CAN_RUN_SCRIPT NS_IMETHOD CompleteMove(bool aForward,
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bool aExtend) override;
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NS_IMETHOD ScrollPage(bool aForward) override;
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NS_IMETHOD ScrollLine(bool aForward) override;
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NS_IMETHOD ScrollCharacter(bool aRight) override;
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void SelectionWillTakeFocus() override;
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void SelectionWillLoseFocus() override;
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private:
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RefPtr<nsFrameSelection> mFrameSelection;
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ScrollContainerFrame* mScrollContainerFrame = nullptr;
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nsWeakPtr mPresShellWeak;
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};
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NS_IMPL_CYCLE_COLLECTING_ADDREF(TextInputSelectionController)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(TextInputSelectionController)
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NS_INTERFACE_TABLE_HEAD(TextInputSelectionController)
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NS_INTERFACE_TABLE(TextInputSelectionController, nsISelectionController,
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nsISelectionDisplay, nsISupportsWeakReference)
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NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(TextInputSelectionController)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTION_WEAK(TextInputSelectionController, mFrameSelection)
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TextInputSelectionController::TextInputSelectionController(
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PresShell* aPresShell, nsIContent* aLimiter) {
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if (aPresShell) {
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bool accessibleCaretEnabled =
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PresShell::AccessibleCaretEnabled(aLimiter->OwnerDoc()->GetDocShell());
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mFrameSelection =
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new nsFrameSelection(aPresShell, aLimiter, accessibleCaretEnabled);
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mPresShellWeak = do_GetWeakReference(aPresShell);
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}
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}
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void TextInputSelectionController::SetScrollContainerFrame(
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ScrollContainerFrame* aScrollContainerFrame) {
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mScrollContainerFrame = aScrollContainerFrame;
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if (!mScrollContainerFrame && mFrameSelection) {
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mFrameSelection->DisconnectFromPresShell();
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mFrameSelection = nullptr;
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}
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}
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Selection* TextInputSelectionController::GetSelection(
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SelectionType aSelectionType) {
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if (!mFrameSelection) {
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return nullptr;
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}
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return mFrameSelection->GetSelection(aSelectionType);
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}
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NS_IMETHODIMP
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TextInputSelectionController::SetDisplaySelection(int16_t aToggle) {
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if (!mFrameSelection) {
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return NS_ERROR_NULL_POINTER;
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}
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mFrameSelection->SetDisplaySelection(aToggle);
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return NS_OK;
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}
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NS_IMETHODIMP
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TextInputSelectionController::GetDisplaySelection(int16_t* aToggle) {
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if (!mFrameSelection) {
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return NS_ERROR_NULL_POINTER;
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}
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*aToggle = mFrameSelection->GetDisplaySelection();
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return NS_OK;
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}
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NS_IMETHODIMP
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TextInputSelectionController::SetSelectionFlags(int16_t aToggle) {
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return NS_OK; // stub this out. not used in input
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}
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NS_IMETHODIMP
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TextInputSelectionController::GetSelectionFlags(int16_t* aOutEnable) {
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*aOutEnable = nsISelectionDisplay::DISPLAY_TEXT;
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return NS_OK;
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}
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NS_IMETHODIMP
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TextInputSelectionController::GetSelectionFromScript(
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RawSelectionType aRawSelectionType, Selection** aSelection) {
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if (!mFrameSelection) {
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return NS_ERROR_NULL_POINTER;
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}
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*aSelection =
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mFrameSelection->GetSelection(ToSelectionType(aRawSelectionType));
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// GetSelection() fails only when aRawSelectionType is invalid value.
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if (!(*aSelection)) {
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return NS_ERROR_INVALID_ARG;
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}
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NS_ADDREF(*aSelection);
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return NS_OK;
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}
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Selection* TextInputSelectionController::GetSelection(
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RawSelectionType aRawSelectionType) {
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return GetSelection(ToSelectionType(aRawSelectionType));
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}
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NS_IMETHODIMP
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TextInputSelectionController::ScrollSelectionIntoView(
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RawSelectionType aRawSelectionType, int16_t aRegion, int16_t aFlags) {
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if (!mFrameSelection) {
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return NS_ERROR_NULL_POINTER;
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}
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RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
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return frameSelection->ScrollSelectionIntoView(
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ToSelectionType(aRawSelectionType), aRegion, aFlags);
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}
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NS_IMETHODIMP
|
|
TextInputSelectionController::RepaintSelection(
|
|
RawSelectionType aRawSelectionType) {
|
|
if (!mFrameSelection) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
return frameSelection->RepaintSelection(ToSelectionType(aRawSelectionType));
|
|
}
|
|
|
|
nsresult TextInputSelectionController::RepaintSelection(
|
|
nsPresContext* aPresContext, SelectionType aSelectionType) {
|
|
if (!mFrameSelection) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
return frameSelection->RepaintSelection(aSelectionType);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::SetCaretEnabled(bool enabled) {
|
|
if (!mPresShellWeak) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
RefPtr<PresShell> presShell = do_QueryReferent(mPresShellWeak);
|
|
if (!presShell) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// tell the pres shell to enable the caret, rather than settings its
|
|
// visibility directly. this way the presShell's idea of caret visibility is
|
|
// maintained.
|
|
presShell->SetCaretEnabled(enabled);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::SetCaretReadOnly(bool aReadOnly) {
|
|
if (!mPresShellWeak) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
nsresult rv;
|
|
RefPtr<PresShell> presShell = do_QueryReferent(mPresShellWeak, &rv);
|
|
if (!presShell) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
RefPtr<nsCaret> caret = presShell->GetCaret();
|
|
if (!caret) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (!mFrameSelection) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
Selection* selection = mFrameSelection->GetSelection(SelectionType::eNormal);
|
|
if (selection) {
|
|
caret->SetCaretReadOnly(aReadOnly);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::GetCaretEnabled(bool* _retval) {
|
|
return GetCaretVisible(_retval);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::GetCaretVisible(bool* _retval) {
|
|
if (!mPresShellWeak) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
nsresult rv;
|
|
RefPtr<PresShell> presShell = do_QueryReferent(mPresShellWeak, &rv);
|
|
if (!presShell) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
RefPtr<nsCaret> caret = presShell->GetCaret();
|
|
if (!caret) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
*_retval = caret->IsVisible();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::SetCaretVisibilityDuringSelection(
|
|
bool aVisibility) {
|
|
if (!mPresShellWeak) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
nsresult rv;
|
|
RefPtr<PresShell> presShell = do_QueryReferent(mPresShellWeak, &rv);
|
|
if (!presShell) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
RefPtr<nsCaret> caret = presShell->GetCaret();
|
|
if (!caret) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
Selection* selection = mFrameSelection->GetSelection(SelectionType::eNormal);
|
|
if (selection) {
|
|
caret->SetVisibilityDuringSelection(aVisibility);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::PhysicalMove(int16_t aDirection, int16_t aAmount,
|
|
bool aExtend) {
|
|
if (!mFrameSelection) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
return frameSelection->PhysicalMove(aDirection, aAmount, aExtend);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::CharacterMove(bool aForward, bool aExtend) {
|
|
if (!mFrameSelection) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
return frameSelection->CharacterMove(aForward, aExtend);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::WordMove(bool aForward, bool aExtend) {
|
|
if (!mFrameSelection) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
return frameSelection->WordMove(aForward, aExtend);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::LineMove(bool aForward, bool aExtend) {
|
|
if (!mFrameSelection) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
nsresult result = frameSelection->LineMove(aForward, aExtend);
|
|
if (NS_FAILED(result)) {
|
|
result = CompleteMove(aForward, aExtend);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::IntraLineMove(bool aForward, bool aExtend) {
|
|
if (!mFrameSelection) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
return frameSelection->IntraLineMove(aForward, aExtend);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::PageMove(bool aForward, bool aExtend) {
|
|
// expected behavior for PageMove is to scroll AND move the caret
|
|
// and to remain relative position of the caret in view. see Bug 4302.
|
|
if (mScrollContainerFrame) {
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
// We won't scroll parent scrollable element of mScrollContainerFrame.
|
|
// Therefore, this may be handled when mScrollContainerFrame is completely
|
|
// outside of the view. In such case, user may be confused since they might
|
|
// have wanted to scroll a parent scrollable element. For making clearer
|
|
// which element handles PageDown/PageUp, we should move selection into view
|
|
// even if selection is not changed.
|
|
return frameSelection->PageMove(aForward, aExtend, mScrollContainerFrame,
|
|
nsFrameSelection::SelectionIntoView::Yes);
|
|
}
|
|
// Similarly, if there is no scrollable frame, we should move the editor
|
|
// frame into the view for making it clearer which element handles
|
|
// PageDown/PageUp.
|
|
return ScrollSelectionIntoView(
|
|
nsISelectionController::SELECTION_NORMAL,
|
|
nsISelectionController::SELECTION_FOCUS_REGION,
|
|
nsISelectionController::SCROLL_SYNCHRONOUS |
|
|
nsISelectionController::SCROLL_FOR_CARET_MOVE);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::CompleteScroll(bool aForward) {
|
|
if (!mScrollContainerFrame) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
mScrollContainerFrame->ScrollBy(nsIntPoint(0, aForward ? 1 : -1),
|
|
ScrollUnit::WHOLE, ScrollMode::Instant);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::CompleteMove(bool aForward, bool aExtend) {
|
|
if (NS_WARN_IF(!mFrameSelection)) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
RefPtr<nsFrameSelection> frameSelection = mFrameSelection;
|
|
|
|
// grab the parent / root DIV for this text widget
|
|
nsIContent* parentDIV = frameSelection->GetLimiter();
|
|
if (!parentDIV) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
// make the caret be either at the very beginning (0) or the very end
|
|
int32_t offset = 0;
|
|
CaretAssociationHint hint = CaretAssociationHint::Before;
|
|
if (aForward) {
|
|
offset = parentDIV->GetChildCount();
|
|
|
|
// Prevent the caret from being placed after the last
|
|
// BR node in the content tree!
|
|
|
|
if (offset > 0) {
|
|
nsIContent* child = parentDIV->GetLastChild();
|
|
|
|
if (child->IsHTMLElement(nsGkAtoms::br)) {
|
|
--offset;
|
|
hint = CaretAssociationHint::After; // for Bug 106855
|
|
}
|
|
}
|
|
}
|
|
|
|
const RefPtr<nsIContent> pinnedParentDIV{parentDIV};
|
|
const nsFrameSelection::FocusMode focusMode =
|
|
aExtend ? nsFrameSelection::FocusMode::kExtendSelection
|
|
: nsFrameSelection::FocusMode::kCollapseToNewPoint;
|
|
frameSelection->HandleClick(pinnedParentDIV, offset, offset, focusMode, hint);
|
|
|
|
// if we got this far, attempt to scroll no matter what the above result is
|
|
return CompleteScroll(aForward);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::ScrollPage(bool aForward) {
|
|
if (!mScrollContainerFrame) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
mScrollContainerFrame->ScrollBy(nsIntPoint(0, aForward ? 1 : -1),
|
|
ScrollUnit::PAGES, ScrollMode::Smooth);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::ScrollLine(bool aForward) {
|
|
if (!mScrollContainerFrame) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
mScrollContainerFrame->ScrollBy(nsIntPoint(0, aForward ? 1 : -1),
|
|
ScrollUnit::LINES, ScrollMode::Smooth);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TextInputSelectionController::ScrollCharacter(bool aRight) {
|
|
if (!mScrollContainerFrame) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
mScrollContainerFrame->ScrollBy(nsIntPoint(aRight ? 1 : -1, 0),
|
|
ScrollUnit::LINES, ScrollMode::Smooth);
|
|
return NS_OK;
|
|
}
|
|
|
|
void TextInputSelectionController::SelectionWillTakeFocus() {
|
|
if (mFrameSelection) {
|
|
if (PresShell* shell = mFrameSelection->GetPresShell()) {
|
|
shell->FrameSelectionWillTakeFocus(*mFrameSelection);
|
|
}
|
|
}
|
|
}
|
|
|
|
void TextInputSelectionController::SelectionWillLoseFocus() {
|
|
if (mFrameSelection) {
|
|
if (PresShell* shell = mFrameSelection->GetPresShell()) {
|
|
shell->FrameSelectionWillLoseFocus(*mFrameSelection);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* mozilla::TextInputListener
|
|
*****************************************************************************/
|
|
|
|
TextInputListener::TextInputListener(TextControlElement* aTxtCtrlElement)
|
|
: mFrame(nullptr),
|
|
mTxtCtrlElement(aTxtCtrlElement),
|
|
mTextControlState(aTxtCtrlElement ? aTxtCtrlElement->GetTextControlState()
|
|
: nullptr),
|
|
mSelectionWasCollapsed(true),
|
|
mHadUndoItems(false),
|
|
mHadRedoItems(false),
|
|
mSettingValue(false),
|
|
mSetValueChanged(true),
|
|
mListeningToSelectionChange(false) {}
|
|
|
|
NS_IMPL_CYCLE_COLLECTING_ADDREF(TextInputListener)
|
|
NS_IMPL_CYCLE_COLLECTING_RELEASE(TextInputListener)
|
|
|
|
NS_INTERFACE_MAP_BEGIN(TextInputListener)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMEventListener)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMEventListener)
|
|
NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(TextInputListener)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(TextInputListener)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(TextInputListener)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_WEAK_REFERENCE
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(TextInputListener)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
void TextInputListener::OnSelectionChange(Selection& aSelection,
|
|
int16_t aReason) {
|
|
if (!mListeningToSelectionChange) {
|
|
return;
|
|
}
|
|
|
|
AutoWeakFrame weakFrame = mFrame;
|
|
|
|
// Fire the select event
|
|
// The specs don't exactly say when we should fire the select event.
|
|
// IE: Whenever you add/remove a character to/from the selection. Also
|
|
// each time for select all. Also if you get to the end of the text
|
|
// field you will get new event for each keypress or a continuous
|
|
// stream of events if you use the mouse. IE will fire select event
|
|
// when the selection collapses to nothing if you are holding down
|
|
// the shift or mouse button.
|
|
// Mozilla: If we have non-empty selection we will fire a new event for each
|
|
// keypress (or mouseup) if the selection changed. Mozilla will also
|
|
// create the event each time select all is called, even if
|
|
// everything was previously selected, because technically select all
|
|
// will first collapse and then extend. Mozilla will never create an
|
|
// event if the selection collapses to nothing.
|
|
// FYI: If you want to skip dispatching eFormSelect event and if there are no
|
|
// event listeners, you can refer
|
|
// nsPIDOMWindow::HasFormSelectEventListeners(), but be careful about
|
|
// some C++ event handlers, e.g., HTMLTextAreaElement::PostHandleEvent().
|
|
bool collapsed = aSelection.IsCollapsed();
|
|
if (!collapsed && (aReason & (nsISelectionListener::MOUSEUP_REASON |
|
|
nsISelectionListener::KEYPRESS_REASON |
|
|
nsISelectionListener::SELECTALL_REASON))) {
|
|
if (nsCOMPtr<nsIContent> content = mFrame->GetContent()) {
|
|
if (nsCOMPtr<Document> doc = content->GetComposedDoc()) {
|
|
if (RefPtr<PresShell> presShell = doc->GetPresShell()) {
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
WidgetEvent event(true, eFormSelect);
|
|
|
|
presShell->HandleEventWithTarget(&event, mFrame, content, &status);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// if the collapsed state did not change, don't fire notifications
|
|
if (collapsed == mSelectionWasCollapsed) {
|
|
return;
|
|
}
|
|
|
|
mSelectionWasCollapsed = collapsed;
|
|
|
|
if (!weakFrame.IsAlive() || !mFrame ||
|
|
!nsContentUtils::IsFocusedContent(mFrame->GetContent())) {
|
|
return;
|
|
}
|
|
|
|
UpdateTextInputCommands(u"select"_ns);
|
|
}
|
|
|
|
MOZ_CAN_RUN_SCRIPT
|
|
static void DoCommandCallback(Command aCommand, void* aData) {
|
|
nsTextControlFrame* frame = static_cast<nsTextControlFrame*>(aData);
|
|
nsIContent* content = frame->GetContent();
|
|
|
|
nsCOMPtr<nsIControllers> controllers;
|
|
HTMLInputElement* input = HTMLInputElement::FromNode(content);
|
|
if (input) {
|
|
input->GetControllers(getter_AddRefs(controllers));
|
|
} else {
|
|
HTMLTextAreaElement* textArea = HTMLTextAreaElement::FromNode(content);
|
|
|
|
if (textArea) {
|
|
textArea->GetControllers(getter_AddRefs(controllers));
|
|
}
|
|
}
|
|
|
|
if (!controllers) {
|
|
NS_WARNING("Could not get controllers");
|
|
return;
|
|
}
|
|
|
|
const char* commandStr = WidgetKeyboardEvent::GetCommandStr(aCommand);
|
|
|
|
nsCOMPtr<nsIController> controller;
|
|
controllers->GetControllerForCommand(commandStr, getter_AddRefs(controller));
|
|
if (!controller) {
|
|
return;
|
|
}
|
|
|
|
bool commandEnabled;
|
|
if (NS_WARN_IF(NS_FAILED(
|
|
controller->IsCommandEnabled(commandStr, &commandEnabled)))) {
|
|
return;
|
|
}
|
|
if (commandEnabled) {
|
|
controller->DoCommand(commandStr);
|
|
}
|
|
}
|
|
|
|
MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODIMP
|
|
TextInputListener::HandleEvent(Event* aEvent) {
|
|
if (aEvent->DefaultPrevented()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!aEvent->IsTrusted()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<KeyboardEvent> keyEvent = aEvent->AsKeyboardEvent();
|
|
if (!keyEvent) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
WidgetKeyboardEvent* widgetKeyEvent =
|
|
aEvent->WidgetEventPtr()->AsKeyboardEvent();
|
|
if (!widgetKeyEvent) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
{
|
|
auto* input = HTMLInputElement::FromNode(mTxtCtrlElement);
|
|
if (input && input->StepsInputValue(*widgetKeyEvent)) {
|
|
// As an special case, don't handle key events that would step the value
|
|
// of our <input type=number>.
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
auto ExecuteOurShortcutKeys = [&](TextControlElement& aTextControlElement)
|
|
MOZ_CAN_RUN_SCRIPT_FOR_DEFINITION -> bool {
|
|
KeyEventHandler* keyHandlers = ShortcutKeys::GetHandlers(
|
|
aTextControlElement.IsTextArea() ? HandlerType::eTextArea
|
|
: HandlerType::eInput);
|
|
|
|
RefPtr<nsAtom> eventTypeAtom =
|
|
ShortcutKeys::ConvertEventToDOMEventType(widgetKeyEvent);
|
|
for (KeyEventHandler* handler = keyHandlers; handler;
|
|
handler = handler->GetNextHandler()) {
|
|
if (!handler->EventTypeEquals(eventTypeAtom)) {
|
|
continue;
|
|
}
|
|
|
|
if (!handler->KeyEventMatched(keyEvent, 0, IgnoreModifierState())) {
|
|
continue;
|
|
}
|
|
|
|
// XXX Do we execute only one handler even if the handler neither stops
|
|
// propagation nor prevents default of the event?
|
|
nsresult rv = handler->ExecuteHandler(&aTextControlElement, aEvent);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
auto ExecuteNativeKeyBindings =
|
|
[&](TextControlElement& aTextControlElement)
|
|
MOZ_CAN_RUN_SCRIPT_FOR_DEFINITION -> bool {
|
|
if (widgetKeyEvent->mMessage != eKeyPress) {
|
|
return false;
|
|
}
|
|
|
|
NativeKeyBindingsType nativeKeyBindingsType =
|
|
aTextControlElement.IsTextArea()
|
|
? NativeKeyBindingsType::MultiLineEditor
|
|
: NativeKeyBindingsType::SingleLineEditor;
|
|
|
|
nsIWidget* widget = widgetKeyEvent->mWidget;
|
|
// If the event is created by chrome script, the widget is nullptr.
|
|
if (MOZ_UNLIKELY(!widget)) {
|
|
widget = mFrame->GetNearestWidget();
|
|
if (MOZ_UNLIKELY(NS_WARN_IF(!widget))) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// WidgetKeyboardEvent::ExecuteEditCommands() requires non-nullptr mWidget.
|
|
// If the event is created by chrome script, it is nullptr but we need to
|
|
// execute native key bindings. Therefore, we need to set widget to
|
|
// WidgetEvent::mWidget temporarily.
|
|
AutoRestore<nsCOMPtr<nsIWidget>> saveWidget(widgetKeyEvent->mWidget);
|
|
widgetKeyEvent->mWidget = widget;
|
|
if (widgetKeyEvent->ExecuteEditCommands(nativeKeyBindingsType,
|
|
DoCommandCallback, mFrame)) {
|
|
aEvent->PreventDefault();
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
OwningNonNull<TextControlElement> textControlElement(*mTxtCtrlElement);
|
|
if (StaticPrefs::
|
|
ui_key_textcontrol_prefer_native_key_bindings_over_builtin_shortcut_key_definitions()) {
|
|
if (!ExecuteNativeKeyBindings(textControlElement)) {
|
|
ExecuteOurShortcutKeys(textControlElement);
|
|
}
|
|
} else {
|
|
if (!ExecuteOurShortcutKeys(textControlElement)) {
|
|
ExecuteNativeKeyBindings(textControlElement);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult TextInputListener::OnEditActionHandled(TextEditor& aTextEditor) {
|
|
if (mFrame) {
|
|
// XXX Do we still need this or can we just remove the mFrame and
|
|
// frame.IsAlive() conditions below?
|
|
AutoWeakFrame weakFrame = mFrame;
|
|
|
|
// Update the undo / redo menus
|
|
//
|
|
size_t numUndoItems = aTextEditor.NumberOfUndoItems();
|
|
size_t numRedoItems = aTextEditor.NumberOfRedoItems();
|
|
if ((numUndoItems && !mHadUndoItems) || (!numUndoItems && mHadUndoItems) ||
|
|
(numRedoItems && !mHadRedoItems) || (!numRedoItems && mHadRedoItems)) {
|
|
// Modify the menu if undo or redo items are different
|
|
UpdateTextInputCommands(u"undo"_ns);
|
|
|
|
mHadUndoItems = numUndoItems != 0;
|
|
mHadRedoItems = numRedoItems != 0;
|
|
}
|
|
|
|
if (weakFrame.IsAlive()) {
|
|
HandleValueChanged(aTextEditor);
|
|
}
|
|
}
|
|
|
|
return mTextControlState ? mTextControlState->OnEditActionHandled() : NS_OK;
|
|
}
|
|
|
|
void TextInputListener::HandleValueChanged(TextEditor& aTextEditor) {
|
|
// Make sure we know we were changed (do NOT set this to false if there are
|
|
// no undo items; JS could change the value and we'd still need to save it)
|
|
if (mSetValueChanged) {
|
|
mTxtCtrlElement->SetValueChanged(true);
|
|
}
|
|
|
|
if (!mSettingValue) {
|
|
// NOTE(emilio): execCommand might get here even though it might not be a
|
|
// "proper" user-interactive change. Might be worth reconsidering which
|
|
// ValueChangeKind are we passing down.
|
|
mTxtCtrlElement->OnValueChanged(ValueChangeKind::UserInteraction,
|
|
aTextEditor.IsEmpty(), nullptr);
|
|
if (mTextControlState) {
|
|
mTextControlState->ClearLastInteractiveValue();
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult TextInputListener::UpdateTextInputCommands(
|
|
const nsAString& aCommandsToUpdate) {
|
|
nsIContent* content = mFrame->GetContent();
|
|
if (NS_WARN_IF(!content)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsCOMPtr<Document> doc = content->GetComposedDoc();
|
|
if (NS_WARN_IF(!doc)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsPIDOMWindowOuter* domWindow = doc->GetWindow();
|
|
if (NS_WARN_IF(!domWindow)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
domWindow->UpdateCommands(aCommandsToUpdate);
|
|
return NS_OK;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* mozilla::AutoTextControlHandlingState
|
|
*
|
|
* This class is temporarily created in the stack and can manage nested
|
|
* handling state of TextControlState. While this instance exists, lifetime of
|
|
* TextControlState which created the instance is guaranteed. In other words,
|
|
* you can use this class as "kungFuDeathGrip" for TextControlState.
|
|
*****************************************************************************/
|
|
|
|
enum class TextControlAction {
|
|
CommitComposition,
|
|
Destructor,
|
|
PrepareEditor,
|
|
SetRangeText,
|
|
SetSelectionRange,
|
|
SetValue,
|
|
UnbindFromFrame,
|
|
Unlink,
|
|
};
|
|
|
|
class MOZ_STACK_CLASS AutoTextControlHandlingState {
|
|
public:
|
|
AutoTextControlHandlingState() = delete;
|
|
explicit AutoTextControlHandlingState(const AutoTextControlHandlingState&) =
|
|
delete;
|
|
AutoTextControlHandlingState(AutoTextControlHandlingState&&) = delete;
|
|
void operator=(AutoTextControlHandlingState&) = delete;
|
|
void operator=(const AutoTextControlHandlingState&) = delete;
|
|
|
|
/**
|
|
* Generic constructor. If TextControlAction does not require additional
|
|
* data, must use this constructor.
|
|
*/
|
|
MOZ_CAN_RUN_SCRIPT AutoTextControlHandlingState(
|
|
TextControlState& aTextControlState, TextControlAction aTextControlAction)
|
|
: mParent(aTextControlState.mHandlingState),
|
|
mTextControlState(aTextControlState),
|
|
mTextCtrlElement(aTextControlState.mTextCtrlElement),
|
|
mTextInputListener(aTextControlState.mTextListener),
|
|
mTextControlAction(aTextControlAction) {
|
|
MOZ_ASSERT(aTextControlAction != TextControlAction::SetValue,
|
|
"Use specific constructor");
|
|
MOZ_DIAGNOSTIC_ASSERT_IF(
|
|
!aTextControlState.mTextListener,
|
|
!aTextControlState.mBoundFrame || !aTextControlState.mTextEditor);
|
|
mTextControlState.mHandlingState = this;
|
|
if (Is(TextControlAction::CommitComposition)) {
|
|
MOZ_ASSERT(mParent);
|
|
MOZ_ASSERT(mParent->Is(TextControlAction::SetValue));
|
|
// If we're trying to commit composition before handling SetValue,
|
|
// the parent old values will be outdated so that we need to clear
|
|
// them.
|
|
mParent->InvalidateOldValue();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* TextControlAction::SetValue specific constructor. Current setting value
|
|
* must be specified and the creator should check whether we succeeded to
|
|
* allocate memory for line breaker conversion.
|
|
*/
|
|
MOZ_CAN_RUN_SCRIPT AutoTextControlHandlingState(
|
|
TextControlState& aTextControlState, TextControlAction aTextControlAction,
|
|
const nsAString& aSettingValue, const nsAString* aOldValue,
|
|
const ValueSetterOptions& aOptions, ErrorResult& aRv)
|
|
: mParent(aTextControlState.mHandlingState),
|
|
mTextControlState(aTextControlState),
|
|
mTextCtrlElement(aTextControlState.mTextCtrlElement),
|
|
mTextInputListener(aTextControlState.mTextListener),
|
|
mSettingValue(aSettingValue),
|
|
mOldValue(aOldValue),
|
|
mValueSetterOptions(aOptions),
|
|
mTextControlAction(aTextControlAction) {
|
|
MOZ_ASSERT(aTextControlAction == TextControlAction::SetValue,
|
|
"Use generic constructor");
|
|
MOZ_DIAGNOSTIC_ASSERT_IF(
|
|
!aTextControlState.mTextListener,
|
|
!aTextControlState.mBoundFrame || !aTextControlState.mTextEditor);
|
|
mTextControlState.mHandlingState = this;
|
|
if (!nsContentUtils::PlatformToDOMLineBreaks(mSettingValue, fallible)) {
|
|
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
|
return;
|
|
}
|
|
// Update all setting value's new value because older value shouldn't
|
|
// overwrite newer value.
|
|
if (mParent) {
|
|
// If SetValue is nested, parents cannot trust their old value anymore.
|
|
// So, we need to clear them.
|
|
mParent->UpdateSettingValueAndInvalidateOldValue(mSettingValue);
|
|
}
|
|
}
|
|
|
|
MOZ_CAN_RUN_SCRIPT ~AutoTextControlHandlingState() {
|
|
mTextControlState.mHandlingState = mParent;
|
|
if (!mParent && mTextControlStateDestroyed) {
|
|
mTextControlState.DeleteOrCacheForReuse();
|
|
}
|
|
if (!mTextControlStateDestroyed && mPrepareEditorLater) {
|
|
MOZ_ASSERT(nsContentUtils::IsSafeToRunScript());
|
|
MOZ_ASSERT(Is(TextControlAction::SetValue));
|
|
mTextControlState.PrepareEditor(&mSettingValue);
|
|
}
|
|
}
|
|
|
|
void OnDestroyTextControlState() {
|
|
if (IsHandling(TextControlAction::Destructor)) {
|
|
// Do nothing since mTextContrlState.DeleteOrCacheForReuse() has
|
|
// already been called.
|
|
return;
|
|
}
|
|
mTextControlStateDestroyed = true;
|
|
if (mParent) {
|
|
mParent->OnDestroyTextControlState();
|
|
}
|
|
}
|
|
|
|
void PrepareEditorLater() {
|
|
MOZ_ASSERT(IsHandling(TextControlAction::SetValue));
|
|
MOZ_ASSERT(!IsHandling(TextControlAction::PrepareEditor));
|
|
// Look for the top most SetValue.
|
|
AutoTextControlHandlingState* settingValue = nullptr;
|
|
for (AutoTextControlHandlingState* handlingSomething = this;
|
|
handlingSomething; handlingSomething = handlingSomething->mParent) {
|
|
if (handlingSomething->Is(TextControlAction::SetValue)) {
|
|
settingValue = handlingSomething;
|
|
}
|
|
}
|
|
settingValue->mPrepareEditorLater = true;
|
|
}
|
|
|
|
/**
|
|
* WillSetValueWithTextEditor() is called when TextControlState sets
|
|
* value with its mTextEditor.
|
|
*/
|
|
void WillSetValueWithTextEditor() {
|
|
MOZ_ASSERT(Is(TextControlAction::SetValue));
|
|
MOZ_ASSERT(mTextControlState.mBoundFrame);
|
|
mTextControlFrame = mTextControlState.mBoundFrame;
|
|
// If we'reemulating user input, we don't need to manage mTextInputListener
|
|
// by ourselves since everything should be handled by TextEditor as normal
|
|
// user input.
|
|
if (mValueSetterOptions.contains(ValueSetterOption::BySetUserInputAPI)) {
|
|
return;
|
|
}
|
|
// Otherwise, if we're setting the value programatically, we need to manage
|
|
// mTextInputListener by ourselves since TextEditor users special path
|
|
// for the performance.
|
|
mTextInputListener->SettingValue(true);
|
|
mTextInputListener->SetValueChanged(
|
|
mValueSetterOptions.contains(ValueSetterOption::SetValueChanged));
|
|
mEditActionHandled = false;
|
|
// Even if falling back to `TextControlState::SetValueWithoutTextEditor()`
|
|
// due to editor destruction, it shouldn't dispatch "beforeinput" event
|
|
// anymore. Therefore, we should mark that we've already dispatched
|
|
// "beforeinput" event.
|
|
WillDispatchBeforeInputEvent();
|
|
}
|
|
|
|
/**
|
|
* WillDispatchBeforeInputEvent() is called immediately before dispatching
|
|
* "beforeinput" event in `TextControlState`.
|
|
*/
|
|
void WillDispatchBeforeInputEvent() {
|
|
mBeforeInputEventHasBeenDispatched = true;
|
|
}
|
|
|
|
/**
|
|
* OnEditActionHandled() is called when the TextEditor handles something
|
|
* and immediately before dispatching "input" event.
|
|
*/
|
|
[[nodiscard]] MOZ_CAN_RUN_SCRIPT nsresult OnEditActionHandled() {
|
|
MOZ_ASSERT(!mEditActionHandled);
|
|
mEditActionHandled = true;
|
|
if (!Is(TextControlAction::SetValue)) {
|
|
return NS_OK;
|
|
}
|
|
if (!mValueSetterOptions.contains(ValueSetterOption::BySetUserInputAPI)) {
|
|
mTextInputListener->SetValueChanged(true);
|
|
mTextInputListener->SettingValue(
|
|
mParent && mParent->IsHandling(TextControlAction::SetValue));
|
|
}
|
|
if (!IsOriginalTextControlFrameAlive()) {
|
|
return SetValueWithoutTextEditorAgain() ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
// The new value never includes line breaks caused by hard-wrap.
|
|
// So, mCachedValue can always cache the new value.
|
|
nsITextControlFrame* textControlFrame =
|
|
do_QueryFrame(mTextControlFrame.GetFrame());
|
|
return static_cast<nsTextControlFrame*>(textControlFrame)
|
|
->CacheValue(mSettingValue, fallible)
|
|
? NS_OK
|
|
: NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
/**
|
|
* SetValueWithoutTextEditorAgain() should be called if the frame for
|
|
* mTextControlState was destroyed during setting value.
|
|
*/
|
|
[[nodiscard]] MOZ_CAN_RUN_SCRIPT bool SetValueWithoutTextEditorAgain() {
|
|
MOZ_ASSERT(!IsOriginalTextControlFrameAlive());
|
|
// If the frame was destroyed because of a flush somewhere inside
|
|
// TextEditor, mBoundFrame here will be nullptr. But it's also
|
|
// possible for the frame to go away because of another reason (such
|
|
// as deleting the existing selection -- see bug 574558), in which
|
|
// case we don't need to reset the value here.
|
|
if (mTextControlState.mBoundFrame) {
|
|
return true;
|
|
}
|
|
// XXX It's odd to drop flags except
|
|
// ValueSetterOption::SetValueChanged.
|
|
// Probably, this intended to drop ValueSetterOption::BySetUserInputAPI
|
|
// and ValueSetterOption::ByContentAPI, but other flags are added later.
|
|
ErrorResult error;
|
|
AutoTextControlHandlingState handlingSetValueWithoutEditor(
|
|
mTextControlState, TextControlAction::SetValue, mSettingValue,
|
|
mOldValue, mValueSetterOptions & ValueSetterOption::SetValueChanged,
|
|
error);
|
|
if (error.Failed()) {
|
|
MOZ_ASSERT(error.ErrorCodeIs(NS_ERROR_OUT_OF_MEMORY));
|
|
error.SuppressException();
|
|
return false;
|
|
}
|
|
return mTextControlState.SetValueWithoutTextEditor(
|
|
handlingSetValueWithoutEditor);
|
|
}
|
|
|
|
bool IsTextControlStateDestroyed() const {
|
|
return mTextControlStateDestroyed;
|
|
}
|
|
bool IsOriginalTextControlFrameAlive() const {
|
|
return const_cast<AutoTextControlHandlingState*>(this)
|
|
->mTextControlFrame.IsAlive();
|
|
}
|
|
bool HasEditActionHandled() const { return mEditActionHandled; }
|
|
bool HasBeforeInputEventDispatched() const {
|
|
return mBeforeInputEventHasBeenDispatched;
|
|
}
|
|
bool Is(TextControlAction aTextControlAction) const {
|
|
return mTextControlAction == aTextControlAction;
|
|
}
|
|
bool IsHandling(TextControlAction aTextControlAction) const {
|
|
if (mTextControlAction == aTextControlAction) {
|
|
return true;
|
|
}
|
|
return mParent && mParent->IsHandling(aTextControlAction);
|
|
}
|
|
TextControlElement* GetTextControlElement() const { return mTextCtrlElement; }
|
|
TextInputListener* GetTextInputListener() const { return mTextInputListener; }
|
|
const ValueSetterOptions& ValueSetterOptionsRef() const {
|
|
MOZ_ASSERT(Is(TextControlAction::SetValue));
|
|
return mValueSetterOptions;
|
|
}
|
|
const nsAString* GetOldValue() const {
|
|
MOZ_ASSERT(Is(TextControlAction::SetValue));
|
|
return mOldValue;
|
|
}
|
|
const nsString& GetSettingValue() const {
|
|
MOZ_ASSERT(IsHandling(TextControlAction::SetValue));
|
|
if (mTextControlAction == TextControlAction::SetValue) {
|
|
return mSettingValue;
|
|
}
|
|
return mParent->GetSettingValue();
|
|
}
|
|
|
|
private:
|
|
void UpdateSettingValueAndInvalidateOldValue(const nsString& aSettingValue) {
|
|
if (mTextControlAction == TextControlAction::SetValue) {
|
|
mSettingValue = aSettingValue;
|
|
}
|
|
mOldValue = nullptr;
|
|
if (mParent) {
|
|
mParent->UpdateSettingValueAndInvalidateOldValue(aSettingValue);
|
|
}
|
|
}
|
|
void InvalidateOldValue() {
|
|
mOldValue = nullptr;
|
|
if (mParent) {
|
|
mParent->InvalidateOldValue();
|
|
}
|
|
}
|
|
|
|
AutoTextControlHandlingState* const mParent;
|
|
TextControlState& mTextControlState;
|
|
// mTextControlFrame should be set immediately before calling methods
|
|
// which may destroy the frame. Then, you can check whether the frame
|
|
// was destroyed/replaced.
|
|
AutoWeakFrame mTextControlFrame;
|
|
// mTextCtrlElement grabs TextControlState::mTextCtrlElement since
|
|
// if the text control element releases mTextControlState, only this
|
|
// can guarantee the instance of the text control element.
|
|
RefPtr<TextControlElement> const mTextCtrlElement;
|
|
// mTextInputListener grabs TextControlState::mTextListener because if
|
|
// TextControlState is unbind from the frame, it's released.
|
|
RefPtr<TextInputListener> const mTextInputListener;
|
|
nsAutoString mSettingValue;
|
|
const nsAString* mOldValue = nullptr;
|
|
ValueSetterOptions mValueSetterOptions;
|
|
TextControlAction const mTextControlAction;
|
|
bool mTextControlStateDestroyed = false;
|
|
bool mEditActionHandled = false;
|
|
bool mPrepareEditorLater = false;
|
|
bool mBeforeInputEventHasBeenDispatched = false;
|
|
};
|
|
|
|
/*****************************************************************************
|
|
* mozilla::TextControlState
|
|
*****************************************************************************/
|
|
|
|
/**
|
|
* For avoiding allocation cost of the instance, we should reuse instances
|
|
* as far as possible.
|
|
*
|
|
* FYI: `25` is just a magic number considered without enough investigation,
|
|
* but at least, this value must not make damage for footprint.
|
|
* Feel free to change it if you find better number.
|
|
*/
|
|
static constexpr size_t kMaxCountOfCacheToReuse = 25;
|
|
static AutoTArray<void*, kMaxCountOfCacheToReuse>* sReleasedInstances = nullptr;
|
|
static bool sHasShutDown = false;
|
|
|
|
TextControlState::TextControlState(TextControlElement* aOwningElement)
|
|
: mTextCtrlElement(aOwningElement),
|
|
mEverInited(false),
|
|
mEditorInitialized(false),
|
|
mValueTransferInProgress(false),
|
|
mSelectionCached(true)
|
|
// When adding more member variable initializations here, add the same
|
|
// also to ::Construct.
|
|
{
|
|
MOZ_COUNT_CTOR(TextControlState);
|
|
static_assert(sizeof(*this) <= 128,
|
|
"Please keep small TextControlState as far as possible");
|
|
}
|
|
|
|
TextControlState* TextControlState::Construct(
|
|
TextControlElement* aOwningElement) {
|
|
void* mem;
|
|
if (sReleasedInstances && !sReleasedInstances->IsEmpty()) {
|
|
mem = sReleasedInstances->PopLastElement();
|
|
} else {
|
|
mem = moz_xmalloc(sizeof(TextControlState));
|
|
}
|
|
|
|
return new (mem) TextControlState(aOwningElement);
|
|
}
|
|
|
|
TextControlState::~TextControlState() {
|
|
MOZ_ASSERT(!mHandlingState);
|
|
MOZ_COUNT_DTOR(TextControlState);
|
|
AutoTextControlHandlingState handlingDesctructor(
|
|
*this, TextControlAction::Destructor);
|
|
Clear();
|
|
}
|
|
|
|
void TextControlState::Shutdown() {
|
|
sHasShutDown = true;
|
|
if (sReleasedInstances) {
|
|
for (void* mem : *sReleasedInstances) {
|
|
free(mem);
|
|
}
|
|
delete sReleasedInstances;
|
|
}
|
|
}
|
|
|
|
void TextControlState::Destroy() {
|
|
// If we're handling something, we should be deleted later.
|
|
if (mHandlingState) {
|
|
mHandlingState->OnDestroyTextControlState();
|
|
return;
|
|
}
|
|
DeleteOrCacheForReuse();
|
|
// Note that this instance may have already been deleted here. Don't touch
|
|
// any members.
|
|
}
|
|
|
|
void TextControlState::DeleteOrCacheForReuse() {
|
|
MOZ_ASSERT(!IsBusy());
|
|
|
|
void* mem = this;
|
|
this->~TextControlState();
|
|
|
|
// If we can cache this instance, we should do it instead of deleting it.
|
|
if (!sHasShutDown && (!sReleasedInstances || sReleasedInstances->Length() <
|
|
kMaxCountOfCacheToReuse)) {
|
|
// Put this instance to the cache. Note that now, the array may be full,
|
|
// but it's not problem to cache more instances than kMaxCountOfCacheToReuse
|
|
// because it just requires reallocation cost of the array buffer.
|
|
if (!sReleasedInstances) {
|
|
sReleasedInstances = new AutoTArray<void*, kMaxCountOfCacheToReuse>;
|
|
}
|
|
sReleasedInstances->AppendElement(mem);
|
|
} else {
|
|
free(mem);
|
|
}
|
|
}
|
|
|
|
nsresult TextControlState::OnEditActionHandled() {
|
|
return mHandlingState ? mHandlingState->OnEditActionHandled() : NS_OK;
|
|
}
|
|
|
|
Element* TextControlState::GetRootNode() {
|
|
return mBoundFrame ? mBoundFrame->GetRootNode() : nullptr;
|
|
}
|
|
|
|
Element* TextControlState::GetPreviewNode() {
|
|
return mBoundFrame ? mBoundFrame->GetPreviewNode() : nullptr;
|
|
}
|
|
|
|
void TextControlState::Clear() {
|
|
MOZ_ASSERT(mHandlingState);
|
|
MOZ_ASSERT(mHandlingState->Is(TextControlAction::Destructor) ||
|
|
mHandlingState->Is(TextControlAction::Unlink));
|
|
if (mTextEditor) {
|
|
mTextEditor->SetTextInputListener(nullptr);
|
|
}
|
|
|
|
if (mBoundFrame) {
|
|
// Oops, we still have a frame!
|
|
// This should happen when the type of a text input control is being changed
|
|
// to something which is not a text control. In this case, we should
|
|
// pretend that a frame is being destroyed, and clean up after ourselves
|
|
// properly.
|
|
UnbindFromFrame(mBoundFrame);
|
|
mTextEditor = nullptr;
|
|
} else {
|
|
// If we have a bound frame around, UnbindFromFrame will call DestroyEditor
|
|
// for us.
|
|
DestroyEditor();
|
|
MOZ_DIAGNOSTIC_ASSERT(!mBoundFrame || !mTextEditor);
|
|
}
|
|
mTextListener = nullptr;
|
|
}
|
|
|
|
void TextControlState::Unlink() {
|
|
AutoTextControlHandlingState handlingUnlink(*this, TextControlAction::Unlink);
|
|
UnlinkInternal();
|
|
}
|
|
|
|
void TextControlState::UnlinkInternal() {
|
|
MOZ_ASSERT(mHandlingState);
|
|
MOZ_ASSERT(mHandlingState->Is(TextControlAction::Unlink));
|
|
TextControlState* tmp = this;
|
|
tmp->Clear();
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSelCon)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTextEditor)
|
|
}
|
|
|
|
void TextControlState::Traverse(nsCycleCollectionTraversalCallback& cb) {
|
|
TextControlState* tmp = this;
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSelCon)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTextEditor)
|
|
}
|
|
|
|
nsFrameSelection* TextControlState::GetConstFrameSelection() {
|
|
return mSelCon ? mSelCon->GetConstFrameSelection() : nullptr;
|
|
}
|
|
|
|
TextEditor* TextControlState::GetTextEditor() {
|
|
// Note that if the instance is destroyed in PrepareEditor(), it returns
|
|
// NS_ERROR_NOT_INITIALIZED so that we don't need to create kungFuDeathGrip
|
|
// in this hot path.
|
|
if (!mTextEditor && NS_WARN_IF(NS_FAILED(PrepareEditor()))) {
|
|
return nullptr;
|
|
}
|
|
return mTextEditor;
|
|
}
|
|
|
|
TextEditor* TextControlState::GetTextEditorWithoutCreation() const {
|
|
return mTextEditor;
|
|
}
|
|
|
|
nsISelectionController* TextControlState::GetSelectionController() const {
|
|
return mSelCon;
|
|
}
|
|
|
|
// Helper class, used below in BindToFrame().
|
|
class PrepareEditorEvent : public Runnable {
|
|
public:
|
|
PrepareEditorEvent(TextControlState& aState, nsIContent* aOwnerContent,
|
|
const nsAString& aCurrentValue)
|
|
: Runnable("PrepareEditorEvent"),
|
|
mState(&aState),
|
|
mOwnerContent(aOwnerContent),
|
|
mCurrentValue(aCurrentValue) {
|
|
aState.mValueTransferInProgress = true;
|
|
}
|
|
|
|
MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override {
|
|
if (NS_WARN_IF(!mState)) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
// Transfer the saved value to the editor if we have one
|
|
const nsAString* value = nullptr;
|
|
if (!mCurrentValue.IsEmpty()) {
|
|
value = &mCurrentValue;
|
|
}
|
|
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
mState->PrepareEditor(value);
|
|
|
|
mState->mValueTransferInProgress = false;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
WeakPtr<TextControlState> mState;
|
|
nsCOMPtr<nsIContent> mOwnerContent; // strong reference
|
|
nsAutoString mCurrentValue;
|
|
};
|
|
|
|
nsresult TextControlState::BindToFrame(nsTextControlFrame* aFrame) {
|
|
MOZ_ASSERT(
|
|
!nsContentUtils::IsSafeToRunScript(),
|
|
"TextControlState::BindToFrame() has to be called with script blocker");
|
|
NS_ASSERTION(aFrame, "The frame to bind to should be valid");
|
|
if (!aFrame) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
NS_ASSERTION(!mBoundFrame, "Cannot bind twice, need to unbind first");
|
|
if (mBoundFrame) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// If we'll need to transfer our current value to the editor, save it before
|
|
// binding to the frame.
|
|
nsAutoString currentValue;
|
|
if (mTextEditor) {
|
|
GetValue(currentValue, true, /* aForDisplay = */ false);
|
|
}
|
|
|
|
mBoundFrame = aFrame;
|
|
|
|
Element* rootNode = aFrame->GetRootNode();
|
|
MOZ_ASSERT(rootNode);
|
|
|
|
PresShell* presShell = aFrame->PresContext()->GetPresShell();
|
|
MOZ_ASSERT(presShell);
|
|
|
|
// Create a SelectionController
|
|
mSelCon = new TextInputSelectionController(presShell, rootNode);
|
|
MOZ_ASSERT(!mTextListener, "Should not overwrite the object");
|
|
mTextListener = new TextInputListener(mTextCtrlElement);
|
|
|
|
mTextListener->SetFrame(mBoundFrame);
|
|
|
|
// Editor will override this as needed from InitializeSelection.
|
|
mSelCon->SetDisplaySelection(nsISelectionController::SELECTION_HIDDEN);
|
|
|
|
// Get the caret and make it a selection listener.
|
|
// FYI: It's safe to use raw pointer for calling
|
|
// Selection::AddSelectionListner() because it only appends the listener
|
|
// to its internal array.
|
|
Selection* selection = mSelCon->GetSelection(SelectionType::eNormal);
|
|
if (selection) {
|
|
RefPtr<nsCaret> caret = presShell->GetCaret();
|
|
if (caret) {
|
|
selection->AddSelectionListener(caret);
|
|
}
|
|
mTextListener->StartToListenToSelectionChange();
|
|
}
|
|
|
|
// If an editor exists from before, prepare it for usage
|
|
if (mTextEditor) {
|
|
if (NS_WARN_IF(!mTextCtrlElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Set the correct direction on the newly created root node
|
|
if (mTextEditor->IsRightToLeft()) {
|
|
rootNode->SetAttr(kNameSpaceID_None, nsGkAtoms::dir, u"rtl"_ns, false);
|
|
} else if (mTextEditor->IsLeftToRight()) {
|
|
rootNode->SetAttr(kNameSpaceID_None, nsGkAtoms::dir, u"ltr"_ns, false);
|
|
} else {
|
|
// otherwise, inherit the content node's direction
|
|
}
|
|
|
|
nsContentUtils::AddScriptRunner(
|
|
new PrepareEditorEvent(*this, mTextCtrlElement, currentValue));
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
struct MOZ_STACK_CLASS PreDestroyer {
|
|
void Init(TextEditor* aTextEditor) { mTextEditor = aTextEditor; }
|
|
~PreDestroyer() {
|
|
if (mTextEditor) {
|
|
// In this case, we don't need to restore the unmasked range of password
|
|
// editor.
|
|
UniquePtr<PasswordMaskData> passwordMaskData = mTextEditor->PreDestroy();
|
|
}
|
|
}
|
|
void Swap(RefPtr<TextEditor>& aTextEditor) {
|
|
return mTextEditor.swap(aTextEditor);
|
|
}
|
|
|
|
private:
|
|
RefPtr<TextEditor> mTextEditor;
|
|
};
|
|
|
|
nsresult TextControlState::PrepareEditor(const nsAString* aValue) {
|
|
if (!mBoundFrame) {
|
|
// Cannot create an editor without a bound frame.
|
|
// Don't return a failure code, because js callers can't handle that.
|
|
return NS_OK;
|
|
}
|
|
|
|
if (mEditorInitialized) {
|
|
// Do not initialize the editor multiple times.
|
|
return NS_OK;
|
|
}
|
|
|
|
AutoHideSelectionChanges hideSelectionChanges(GetConstFrameSelection());
|
|
|
|
if (mHandlingState) {
|
|
// Don't attempt to initialize recursively!
|
|
if (mHandlingState->IsHandling(TextControlAction::PrepareEditor)) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
// Reschedule creating editor later if we're setting value.
|
|
if (mHandlingState->IsHandling(TextControlAction::SetValue)) {
|
|
mHandlingState->PrepareEditorLater();
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(mTextCtrlElement);
|
|
|
|
AutoTextControlHandlingState preparingEditor(
|
|
*this, TextControlAction::PrepareEditor);
|
|
|
|
// Note that we don't check mTextEditor here, because we might already have
|
|
// one around, in which case we don't create a new one, and we'll just tie
|
|
// the required machinery to it.
|
|
|
|
nsPresContext* presContext = mBoundFrame->PresContext();
|
|
PresShell* presShell = presContext->GetPresShell();
|
|
|
|
// Setup the editor flags
|
|
|
|
// Spell check is diabled at creation time. It is enabled once
|
|
// the editor comes into focus.
|
|
uint32_t editorFlags = nsIEditor::eEditorSkipSpellCheck;
|
|
|
|
if (IsSingleLineTextControl()) {
|
|
editorFlags |= nsIEditor::eEditorSingleLineMask;
|
|
}
|
|
if (IsPasswordTextControl()) {
|
|
editorFlags |= nsIEditor::eEditorPasswordMask;
|
|
}
|
|
|
|
bool shouldInitializeEditor = false;
|
|
RefPtr<TextEditor> newTextEditor; // the editor that we might create
|
|
PreDestroyer preDestroyer;
|
|
if (!mTextEditor) {
|
|
shouldInitializeEditor = true;
|
|
|
|
// Create an editor
|
|
newTextEditor = new TextEditor();
|
|
preDestroyer.Init(newTextEditor);
|
|
|
|
// Make sure we clear out the non-breaking space before we initialize the
|
|
// editor
|
|
nsresult rv = mBoundFrame->UpdateValueDisplay(true, true);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("nsTextControlFrame::UpdateValueDisplay() failed");
|
|
return rv;
|
|
}
|
|
} else {
|
|
if (aValue || !mEditorInitialized) {
|
|
// Set the correct value in the root node
|
|
nsresult rv =
|
|
mBoundFrame->UpdateValueDisplay(true, !mEditorInitialized, aValue);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("nsTextControlFrame::UpdateValueDisplay() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
newTextEditor = mTextEditor; // just pretend that we have a new editor!
|
|
|
|
// Don't lose application flags in the process.
|
|
if (newTextEditor->IsMailEditor()) {
|
|
editorFlags |= nsIEditor::eEditorMailMask;
|
|
}
|
|
}
|
|
|
|
// Get the current value of the textfield from the content.
|
|
// Note that if we've created a new editor, mTextEditor is null at this stage,
|
|
// so we will get the real value from the content.
|
|
nsAutoString defaultValue;
|
|
if (aValue) {
|
|
defaultValue = *aValue;
|
|
} else {
|
|
GetValue(defaultValue, true, /* aForDisplay = */ true);
|
|
}
|
|
|
|
if (!mEditorInitialized) {
|
|
// Now initialize the editor.
|
|
//
|
|
// NOTE: Conversion of '\n' to <BR> happens inside the
|
|
// editor's Init() call.
|
|
|
|
// Get the DOM document
|
|
nsCOMPtr<Document> doc = presShell->GetDocument();
|
|
if (NS_WARN_IF(!doc)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// What follows is a bit of a hack. The editor uses the public DOM APIs
|
|
// for its content manipulations, and it causes it to fail some security
|
|
// checks deep inside when initializing. So we explictly make it clear that
|
|
// we're native code.
|
|
// Note that any script that's directly trying to access our value
|
|
// has to be going through some scriptable object to do that and that
|
|
// already does the relevant security checks.
|
|
AutoNoJSAPI nojsapi;
|
|
|
|
RefPtr<Element> anonymousDivElement = GetRootNode();
|
|
if (NS_WARN_IF(!anonymousDivElement) || NS_WARN_IF(!mSelCon)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
OwningNonNull<TextInputSelectionController> selectionController(*mSelCon);
|
|
UniquePtr<PasswordMaskData> passwordMaskData;
|
|
if (editorFlags & nsIEditor::eEditorPasswordMask) {
|
|
if (mPasswordMaskData) {
|
|
passwordMaskData = std::move(mPasswordMaskData);
|
|
} else {
|
|
passwordMaskData = MakeUnique<PasswordMaskData>();
|
|
}
|
|
} else {
|
|
mPasswordMaskData = nullptr;
|
|
}
|
|
nsresult rv =
|
|
newTextEditor->Init(*doc, *anonymousDivElement, selectionController,
|
|
editorFlags, std::move(passwordMaskData));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("TextEditor::Init() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Initialize the controller for the editor
|
|
|
|
nsresult rv = NS_OK;
|
|
if (!SuppressEventHandlers(presContext)) {
|
|
nsCOMPtr<nsIControllers> controllers;
|
|
if (auto* inputElement = HTMLInputElement::FromNode(mTextCtrlElement)) {
|
|
nsresult rv = inputElement->GetControllers(getter_AddRefs(controllers));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
} else {
|
|
auto* textAreaElement = HTMLTextAreaElement::FromNode(mTextCtrlElement);
|
|
if (!textAreaElement) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult rv =
|
|
textAreaElement->GetControllers(getter_AddRefs(controllers));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
if (controllers) {
|
|
// XXX Oddly, nsresult value is overwritten in the following loop, and
|
|
// only the last result or `found` decides the value.
|
|
uint32_t numControllers;
|
|
bool found = false;
|
|
rv = controllers->GetControllerCount(&numControllers);
|
|
for (uint32_t i = 0; i < numControllers; i++) {
|
|
nsCOMPtr<nsIController> controller;
|
|
rv = controllers->GetControllerAt(i, getter_AddRefs(controller));
|
|
if (NS_SUCCEEDED(rv) && controller) {
|
|
nsCOMPtr<nsIControllerContext> editController =
|
|
do_QueryInterface(controller);
|
|
if (editController) {
|
|
editController->SetCommandContext(
|
|
static_cast<nsIEditor*>(newTextEditor));
|
|
found = true;
|
|
}
|
|
}
|
|
}
|
|
if (!found) {
|
|
rv = NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Initialize the plaintext editor
|
|
if (shouldInitializeEditor) {
|
|
const int32_t wrapCols = GetWrapCols();
|
|
MOZ_ASSERT(wrapCols >= 0);
|
|
newTextEditor->SetWrapColumn(wrapCols);
|
|
}
|
|
|
|
// Set max text field length
|
|
newTextEditor->SetMaxTextLength(mTextCtrlElement->UsedMaxLength());
|
|
|
|
editorFlags = newTextEditor->Flags();
|
|
|
|
// Check if the readonly/disabled attributes are set.
|
|
if (mTextCtrlElement->IsDisabledOrReadOnly()) {
|
|
editorFlags |= nsIEditor::eEditorReadonlyMask;
|
|
}
|
|
|
|
SetEditorFlagsIfNecessary(*newTextEditor, editorFlags);
|
|
|
|
if (shouldInitializeEditor) {
|
|
// Hold on to the newly created editor
|
|
preDestroyer.Swap(mTextEditor);
|
|
}
|
|
|
|
// If we have a default value, insert it under the div we created
|
|
// above, but be sure to use the editor so that '*' characters get
|
|
// displayed for password fields, etc. SetValue() will call the
|
|
// editor for us.
|
|
|
|
if (!defaultValue.IsEmpty()) {
|
|
// XXX rv may store error code which indicates there is no controller.
|
|
// However, we overwrite it only in this case.
|
|
rv = SetEditorFlagsIfNecessary(*newTextEditor, editorFlags);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// Now call SetValue() which will make the necessary editor calls to set
|
|
// the default value. Make sure to turn off undo before setting the default
|
|
// value, and turn it back on afterwards. This will make sure we can't undo
|
|
// past the default value.
|
|
// So, we use ValueSetterOption::ByInternalAPI only that it will turn off
|
|
// undo.
|
|
|
|
if (NS_WARN_IF(!SetValue(defaultValue, ValueSetterOption::ByInternalAPI))) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
// Now restore the original editor flags.
|
|
rv = SetEditorFlagsIfNecessary(*newTextEditor, editorFlags);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
// When the default value is empty, we don't call SetValue(). That means that
|
|
// we have not notified IMEContentObserver of the empty value when the
|
|
// <textarea> is not dirty (i.e., the default value is mirrored into the
|
|
// anonymous subtree asynchronously) and the value was changed during a
|
|
// reframe (i.e., while IMEContentObserver was not observing the mutation of
|
|
// the anonymous subtree). Therefore, we notify IMEContentObserver here in
|
|
// that case.
|
|
else if (mTextCtrlElement && mTextCtrlElement->IsTextArea() &&
|
|
!mTextCtrlElement->ValueChanged()) {
|
|
MOZ_ASSERT(defaultValue.IsEmpty());
|
|
IMEContentObserver* observer = GetIMEContentObserver();
|
|
if (observer && observer->WasInitializedWith(*newTextEditor)) {
|
|
observer->OnTextControlValueChangedWhileNotObservable(defaultValue);
|
|
}
|
|
}
|
|
|
|
DebugOnly<bool> enabledUndoRedo =
|
|
newTextEditor->EnableUndoRedo(TextControlElement::DEFAULT_UNDO_CAP);
|
|
NS_WARNING_ASSERTION(enabledUndoRedo,
|
|
"Failed to enable undo/redo transaction");
|
|
|
|
if (!mEditorInitialized) {
|
|
newTextEditor->PostCreate();
|
|
mEverInited = true;
|
|
mEditorInitialized = true;
|
|
}
|
|
|
|
if (mTextListener) {
|
|
newTextEditor->SetTextInputListener(mTextListener);
|
|
}
|
|
|
|
// Restore our selection after being bound to a new frame
|
|
if (mSelectionCached) {
|
|
if (mRestoringSelection) { // paranoia
|
|
mRestoringSelection->Revoke();
|
|
}
|
|
mRestoringSelection = new RestoreSelectionState(this, mBoundFrame);
|
|
if (mRestoringSelection) {
|
|
nsContentUtils::AddScriptRunner(mRestoringSelection);
|
|
}
|
|
}
|
|
|
|
// The selection cache is no longer going to be valid.
|
|
//
|
|
// XXXbz Shouldn't we do this at the point when we're actually about to
|
|
// restore the properties or something? As things stand, if UnbindFromFrame
|
|
// happens before our RestoreSelectionState runs, it looks like we'll lose our
|
|
// selection info, because we will think we don't have it cached and try to
|
|
// read it from the selection controller, which will not have it yet.
|
|
mSelectionCached = false;
|
|
|
|
return preparingEditor.IsTextControlStateDestroyed()
|
|
? NS_ERROR_NOT_INITIALIZED
|
|
: rv;
|
|
}
|
|
|
|
void TextControlState::FinishedRestoringSelection() {
|
|
mRestoringSelection = nullptr;
|
|
}
|
|
|
|
void TextControlState::SyncUpSelectionPropertiesBeforeDestruction() {
|
|
if (mBoundFrame) {
|
|
UnbindFromFrame(mBoundFrame);
|
|
}
|
|
}
|
|
|
|
void TextControlState::SetSelectionProperties(
|
|
TextControlState::SelectionProperties& aProps) {
|
|
if (mBoundFrame) {
|
|
mBoundFrame->SetSelectionRange(aProps.GetStart(), aProps.GetEnd(),
|
|
aProps.GetDirection());
|
|
// The instance may have already been deleted here.
|
|
} else {
|
|
mSelectionProperties = aProps;
|
|
}
|
|
}
|
|
|
|
void TextControlState::GetSelectionRange(uint32_t* aSelectionStart,
|
|
uint32_t* aSelectionEnd,
|
|
ErrorResult& aRv) {
|
|
MOZ_ASSERT(aSelectionStart);
|
|
MOZ_ASSERT(aSelectionEnd);
|
|
MOZ_ASSERT(IsSelectionCached() || GetSelectionController(),
|
|
"How can we not have a cached selection if we have no selection "
|
|
"controller?");
|
|
|
|
// Note that we may have both IsSelectionCached() _and_
|
|
// GetSelectionController() if we haven't initialized our editor yet.
|
|
if (IsSelectionCached()) {
|
|
const SelectionProperties& props = GetSelectionProperties();
|
|
*aSelectionStart = props.GetStart();
|
|
*aSelectionEnd = props.GetEnd();
|
|
return;
|
|
}
|
|
|
|
Selection* sel = mSelCon->GetSelection(SelectionType::eNormal);
|
|
if (NS_WARN_IF(!sel)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
Element* root = GetRootNode();
|
|
if (NS_WARN_IF(!root)) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return;
|
|
}
|
|
nsContentUtils::GetSelectionInTextControl(sel, root, *aSelectionStart,
|
|
*aSelectionEnd);
|
|
}
|
|
|
|
SelectionDirection TextControlState::GetSelectionDirection(ErrorResult& aRv) {
|
|
MOZ_ASSERT(IsSelectionCached() || GetSelectionController(),
|
|
"How can we not have a cached selection if we have no selection "
|
|
"controller?");
|
|
|
|
// Note that we may have both IsSelectionCached() _and_
|
|
// GetSelectionController() if we haven't initialized our editor yet.
|
|
if (IsSelectionCached()) {
|
|
return GetSelectionProperties().GetDirection();
|
|
}
|
|
|
|
Selection* sel = mSelCon->GetSelection(SelectionType::eNormal);
|
|
if (NS_WARN_IF(!sel)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return SelectionDirection::Forward;
|
|
}
|
|
|
|
nsDirection direction = sel->GetDirection();
|
|
if (direction == eDirNext) {
|
|
return SelectionDirection::Forward;
|
|
}
|
|
|
|
MOZ_ASSERT(direction == eDirPrevious);
|
|
return SelectionDirection::Backward;
|
|
}
|
|
|
|
void TextControlState::SetSelectionRange(uint32_t aStart, uint32_t aEnd,
|
|
SelectionDirection aDirection,
|
|
ErrorResult& aRv,
|
|
ScrollAfterSelection aScroll) {
|
|
MOZ_ASSERT(IsSelectionCached() || mBoundFrame,
|
|
"How can we have a non-cached selection but no frame?");
|
|
|
|
AutoTextControlHandlingState handlingSetSelectionRange(
|
|
*this, TextControlAction::SetSelectionRange);
|
|
|
|
if (aStart > aEnd) {
|
|
aStart = aEnd;
|
|
}
|
|
|
|
if (!IsSelectionCached()) {
|
|
MOZ_ASSERT(mBoundFrame, "Our frame should still be valid");
|
|
aRv = mBoundFrame->SetSelectionRange(aStart, aEnd, aDirection);
|
|
if (aRv.Failed() ||
|
|
handlingSetSelectionRange.IsTextControlStateDestroyed()) {
|
|
return;
|
|
}
|
|
if (aScroll == ScrollAfterSelection::Yes && mBoundFrame) {
|
|
// mBoundFrame could be gone if selection listeners flushed layout for
|
|
// example.
|
|
mBoundFrame->ScrollSelectionIntoViewAsync();
|
|
}
|
|
return;
|
|
}
|
|
|
|
SelectionProperties& props = GetSelectionProperties();
|
|
if (!props.HasMaxLength()) {
|
|
// A clone without a dirty value flag may not have a max length yet
|
|
nsAutoString value;
|
|
GetValue(value, false, /* aForDisplay = */ true);
|
|
props.SetMaxLength(value.Length());
|
|
}
|
|
|
|
bool changed = props.SetStart(aStart);
|
|
changed |= props.SetEnd(aEnd);
|
|
changed |= props.SetDirection(aDirection);
|
|
|
|
if (!changed) {
|
|
return;
|
|
}
|
|
|
|
// It sure would be nice if we had an existing Element* or so to work with.
|
|
RefPtr<AsyncEventDispatcher> asyncDispatcher =
|
|
new AsyncEventDispatcher(mTextCtrlElement, eFormSelect, CanBubble::eYes);
|
|
asyncDispatcher->PostDOMEvent();
|
|
|
|
// SelectionChangeEventDispatcher covers this when !IsSelectionCached().
|
|
// XXX(krosylight): Shouldn't it fire before select event?
|
|
// Currently Gecko and Blink both fire selectionchange after select.
|
|
if (IsSelectionCached() &&
|
|
StaticPrefs::dom_select_events_textcontrols_selectionchange_enabled() &&
|
|
!mTextCtrlElement->HasScheduledSelectionChangeEvent()) {
|
|
mTextCtrlElement->SetHasScheduledSelectionChangeEvent();
|
|
asyncDispatcher = new AsyncSelectionChangeEventDispatcher(
|
|
mTextCtrlElement, eSelectionChange, CanBubble::eYes);
|
|
asyncDispatcher->PostDOMEvent();
|
|
}
|
|
}
|
|
|
|
void TextControlState::SetSelectionStart(const Nullable<uint32_t>& aStart,
|
|
ErrorResult& aRv) {
|
|
uint32_t start = 0;
|
|
if (!aStart.IsNull()) {
|
|
start = aStart.Value();
|
|
}
|
|
|
|
uint32_t ignored, end;
|
|
GetSelectionRange(&ignored, &end, aRv);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
|
|
SelectionDirection dir = GetSelectionDirection(aRv);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
|
|
if (end < start) {
|
|
end = start;
|
|
}
|
|
|
|
SetSelectionRange(start, end, dir, aRv);
|
|
// The instance may have already been deleted here.
|
|
}
|
|
|
|
void TextControlState::SetSelectionEnd(const Nullable<uint32_t>& aEnd,
|
|
ErrorResult& aRv) {
|
|
uint32_t end = 0;
|
|
if (!aEnd.IsNull()) {
|
|
end = aEnd.Value();
|
|
}
|
|
|
|
uint32_t start, ignored;
|
|
GetSelectionRange(&start, &ignored, aRv);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
|
|
SelectionDirection dir = GetSelectionDirection(aRv);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
|
|
SetSelectionRange(start, end, dir, aRv);
|
|
// The instance may have already been deleted here.
|
|
}
|
|
|
|
static void DirectionToName(SelectionDirection dir, nsAString& aDirection) {
|
|
switch (dir) {
|
|
case SelectionDirection::None:
|
|
// TODO(mbrodesser): this should be supported, see
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1541454.
|
|
NS_WARNING("We don't actually support this... how did we get it?");
|
|
return aDirection.AssignLiteral("none");
|
|
case SelectionDirection::Forward:
|
|
return aDirection.AssignLiteral("forward");
|
|
case SelectionDirection::Backward:
|
|
return aDirection.AssignLiteral("backward");
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Invalid SelectionDirection value");
|
|
}
|
|
|
|
void TextControlState::GetSelectionDirectionString(nsAString& aDirection,
|
|
ErrorResult& aRv) {
|
|
SelectionDirection dir = GetSelectionDirection(aRv);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
DirectionToName(dir, aDirection);
|
|
}
|
|
|
|
static SelectionDirection DirectionStringToSelectionDirection(
|
|
const nsAString& aDirection) {
|
|
if (aDirection.EqualsLiteral("backward")) {
|
|
return SelectionDirection::Backward;
|
|
}
|
|
// We don't support directionless selections, see bug 1541454.
|
|
return SelectionDirection::Forward;
|
|
}
|
|
|
|
void TextControlState::SetSelectionDirection(const nsAString& aDirection,
|
|
ErrorResult& aRv) {
|
|
SelectionDirection dir = DirectionStringToSelectionDirection(aDirection);
|
|
|
|
uint32_t start, end;
|
|
GetSelectionRange(&start, &end, aRv);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
|
|
SetSelectionRange(start, end, dir, aRv);
|
|
// The instance may have already been deleted here.
|
|
}
|
|
|
|
static SelectionDirection DirectionStringToSelectionDirection(
|
|
const Optional<nsAString>& aDirection) {
|
|
if (!aDirection.WasPassed()) {
|
|
// We don't support directionless selections.
|
|
return SelectionDirection::Forward;
|
|
}
|
|
|
|
return DirectionStringToSelectionDirection(aDirection.Value());
|
|
}
|
|
|
|
void TextControlState::SetSelectionRange(uint32_t aSelectionStart,
|
|
uint32_t aSelectionEnd,
|
|
const Optional<nsAString>& aDirection,
|
|
ErrorResult& aRv,
|
|
ScrollAfterSelection aScroll) {
|
|
SelectionDirection dir = DirectionStringToSelectionDirection(aDirection);
|
|
|
|
SetSelectionRange(aSelectionStart, aSelectionEnd, dir, aRv, aScroll);
|
|
// The instance may have already been deleted here.
|
|
}
|
|
|
|
void TextControlState::SetRangeText(const nsAString& aReplacement,
|
|
ErrorResult& aRv) {
|
|
uint32_t start, end;
|
|
GetSelectionRange(&start, &end, aRv);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
|
|
SetRangeText(aReplacement, start, end, SelectionMode::Preserve, aRv,
|
|
Some(start), Some(end));
|
|
// The instance may have already been deleted here.
|
|
}
|
|
|
|
void TextControlState::SetRangeText(const nsAString& aReplacement,
|
|
uint32_t aStart, uint32_t aEnd,
|
|
SelectionMode aSelectMode, ErrorResult& aRv,
|
|
const Maybe<uint32_t>& aSelectionStart,
|
|
const Maybe<uint32_t>& aSelectionEnd) {
|
|
if (aStart > aEnd) {
|
|
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
|
|
return;
|
|
}
|
|
|
|
AutoTextControlHandlingState handlingSetRangeText(
|
|
*this, TextControlAction::SetRangeText);
|
|
|
|
nsAutoString value;
|
|
mTextCtrlElement->GetValueFromSetRangeText(value);
|
|
uint32_t inputValueLength = value.Length();
|
|
|
|
if (aStart > inputValueLength) {
|
|
aStart = inputValueLength;
|
|
}
|
|
|
|
if (aEnd > inputValueLength) {
|
|
aEnd = inputValueLength;
|
|
}
|
|
|
|
uint32_t selectionStart, selectionEnd;
|
|
if (!aSelectionStart) {
|
|
MOZ_ASSERT(!aSelectionEnd);
|
|
GetSelectionRange(&selectionStart, &selectionEnd, aRv);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
} else {
|
|
MOZ_ASSERT(aSelectionEnd);
|
|
selectionStart = *aSelectionStart;
|
|
selectionEnd = *aSelectionEnd;
|
|
}
|
|
|
|
// Batch selectionchanges from SetValueFromSetRangeText and SetSelectionRange
|
|
Selection* selection =
|
|
mSelCon ? mSelCon->GetSelection(SelectionType::eNormal) : nullptr;
|
|
SelectionBatcher selectionBatcher(
|
|
selection, __FUNCTION__,
|
|
nsISelectionListener::JS_REASON); // no-op if nullptr
|
|
|
|
MOZ_ASSERT(aStart <= aEnd);
|
|
value.Replace(aStart, aEnd - aStart, aReplacement);
|
|
nsresult rv =
|
|
MOZ_KnownLive(mTextCtrlElement)->SetValueFromSetRangeText(value);
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
return;
|
|
}
|
|
|
|
uint32_t newEnd = aStart + aReplacement.Length();
|
|
int32_t delta = aReplacement.Length() - (aEnd - aStart);
|
|
|
|
switch (aSelectMode) {
|
|
case SelectionMode::Select:
|
|
selectionStart = aStart;
|
|
selectionEnd = newEnd;
|
|
break;
|
|
case SelectionMode::Start:
|
|
selectionStart = selectionEnd = aStart;
|
|
break;
|
|
case SelectionMode::End:
|
|
selectionStart = selectionEnd = newEnd;
|
|
break;
|
|
case SelectionMode::Preserve:
|
|
if (selectionStart > aEnd) {
|
|
selectionStart += delta;
|
|
} else if (selectionStart > aStart) {
|
|
selectionStart = aStart;
|
|
}
|
|
|
|
if (selectionEnd > aEnd) {
|
|
selectionEnd += delta;
|
|
} else if (selectionEnd > aStart) {
|
|
selectionEnd = newEnd;
|
|
}
|
|
break;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unknown mode!");
|
|
}
|
|
|
|
SetSelectionRange(selectionStart, selectionEnd, Optional<nsAString>(), aRv);
|
|
if (IsSelectionCached()) {
|
|
// SetValueFromSetRangeText skipped SetMaxLength, set it here properly
|
|
GetSelectionProperties().SetMaxLength(value.Length());
|
|
}
|
|
}
|
|
|
|
void TextControlState::DestroyEditor() {
|
|
// notify the editor that we are going away
|
|
if (mEditorInitialized) {
|
|
// FYI: TextEditor checks whether it's destroyed or not immediately after
|
|
// changes the DOM tree or selection so that it's safe to call
|
|
// PreDestroy() here even while we're handling actions with
|
|
// mTextEditor.
|
|
MOZ_ASSERT(!mPasswordMaskData);
|
|
RefPtr<TextEditor> textEditor = mTextEditor;
|
|
mPasswordMaskData = textEditor->PreDestroy();
|
|
MOZ_ASSERT_IF(mPasswordMaskData, !mPasswordMaskData->mTimer);
|
|
mEditorInitialized = false;
|
|
}
|
|
}
|
|
|
|
void TextControlState::UnbindFromFrame(nsTextControlFrame* aFrame) {
|
|
if (NS_WARN_IF(!mBoundFrame)) {
|
|
return;
|
|
}
|
|
|
|
// If it was, however, it should be unbounded from the same frame.
|
|
MOZ_ASSERT(aFrame == mBoundFrame, "Unbinding from the wrong frame");
|
|
if (aFrame && aFrame != mBoundFrame) {
|
|
return;
|
|
}
|
|
|
|
AutoTextControlHandlingState handlingUnbindFromFrame(
|
|
*this, TextControlAction::UnbindFromFrame);
|
|
|
|
if (mSelCon) {
|
|
mSelCon->SelectionWillLoseFocus();
|
|
}
|
|
|
|
// We need to start storing the value outside of the editor if we're not
|
|
// going to use it anymore, so retrieve it for now.
|
|
nsAutoString value;
|
|
GetValue(value, true, /* aForDisplay = */ false);
|
|
|
|
if (mRestoringSelection) {
|
|
mRestoringSelection->Revoke();
|
|
mRestoringSelection = nullptr;
|
|
}
|
|
|
|
// Save our selection state if needed.
|
|
// Note that GetSelectionRange will attempt to work with our selection
|
|
// controller, so we should make sure we do it before we start doing things
|
|
// like destroying our editor (if we have one), tearing down the selection
|
|
// controller, and so forth.
|
|
if (!IsSelectionCached()) {
|
|
// Go ahead and cache it now.
|
|
uint32_t start = 0, end = 0;
|
|
GetSelectionRange(&start, &end, IgnoreErrors());
|
|
|
|
nsITextControlFrame::SelectionDirection direction =
|
|
GetSelectionDirection(IgnoreErrors());
|
|
|
|
SelectionProperties& props = GetSelectionProperties();
|
|
props.SetMaxLength(value.Length());
|
|
props.SetStart(start);
|
|
props.SetEnd(end);
|
|
props.SetDirection(direction);
|
|
mSelectionCached = true;
|
|
}
|
|
|
|
// Destroy our editor
|
|
DestroyEditor();
|
|
|
|
// Clean up the controller
|
|
if (!SuppressEventHandlers(mBoundFrame->PresContext())) {
|
|
nsCOMPtr<nsIControllers> controllers;
|
|
if (auto* inputElement = HTMLInputElement::FromNode(mTextCtrlElement)) {
|
|
inputElement->GetControllers(getter_AddRefs(controllers));
|
|
} else {
|
|
auto* textAreaElement = HTMLTextAreaElement::FromNode(mTextCtrlElement);
|
|
if (textAreaElement) {
|
|
textAreaElement->GetControllers(getter_AddRefs(controllers));
|
|
}
|
|
}
|
|
|
|
if (controllers) {
|
|
uint32_t numControllers;
|
|
nsresult rv = controllers->GetControllerCount(&numControllers);
|
|
NS_ASSERTION((NS_SUCCEEDED(rv)),
|
|
"bad result in gfx text control destructor");
|
|
for (uint32_t i = 0; i < numControllers; i++) {
|
|
nsCOMPtr<nsIController> controller;
|
|
rv = controllers->GetControllerAt(i, getter_AddRefs(controller));
|
|
if (NS_SUCCEEDED(rv) && controller) {
|
|
nsCOMPtr<nsIControllerContext> editController =
|
|
do_QueryInterface(controller);
|
|
if (editController) {
|
|
editController->SetCommandContext(nullptr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mSelCon) {
|
|
if (mTextListener) {
|
|
mTextListener->EndListeningToSelectionChange();
|
|
}
|
|
|
|
mSelCon->SetScrollContainerFrame(nullptr);
|
|
mSelCon = nullptr;
|
|
}
|
|
|
|
if (mTextListener) {
|
|
mTextListener->SetFrame(nullptr);
|
|
|
|
EventListenerManager* manager =
|
|
mTextCtrlElement->GetExistingListenerManager();
|
|
if (manager) {
|
|
manager->RemoveEventListenerByType(mTextListener, u"keydown"_ns,
|
|
TrustedEventsAtSystemGroupBubble());
|
|
manager->RemoveEventListenerByType(mTextListener, u"keypress"_ns,
|
|
TrustedEventsAtSystemGroupBubble());
|
|
manager->RemoveEventListenerByType(mTextListener, u"keyup"_ns,
|
|
TrustedEventsAtSystemGroupBubble());
|
|
}
|
|
|
|
mTextListener = nullptr;
|
|
}
|
|
|
|
mBoundFrame = nullptr;
|
|
|
|
// Now that we don't have a frame any more, store the value in the text
|
|
// buffer. The only case where we don't do this is if a value transfer is in
|
|
// progress.
|
|
if (!mValueTransferInProgress) {
|
|
DebugOnly<bool> ok = SetValue(value, ValueSetterOption::ByInternalAPI);
|
|
// TODO Find something better to do if this fails...
|
|
NS_WARNING_ASSERTION(ok, "SetValue() couldn't allocate memory");
|
|
}
|
|
}
|
|
|
|
void TextControlState::GetValue(nsAString& aValue, bool aIgnoreWrap,
|
|
bool aForDisplay) const {
|
|
// While SetValue() is being called and requesting to commit composition to
|
|
// IME, GetValue() may be called for appending text or something. Then, we
|
|
// need to return the latest aValue of SetValue() since the value hasn't
|
|
// been set to the editor yet.
|
|
// XXX After implementing "beforeinput" event, this becomes wrong. The
|
|
// value should be modified immediately after "beforeinput" event for
|
|
// "insertReplacementText".
|
|
if (mHandlingState &&
|
|
mHandlingState->IsHandling(TextControlAction::CommitComposition)) {
|
|
aValue = mHandlingState->GetSettingValue();
|
|
MOZ_ASSERT(aValue.FindChar(u'\r') == -1);
|
|
return;
|
|
}
|
|
|
|
if (mTextEditor && mBoundFrame &&
|
|
(mEditorInitialized || !IsSingleLineTextControl())) {
|
|
if (aIgnoreWrap && !mBoundFrame->CachedValue().IsVoid()) {
|
|
aValue = mBoundFrame->CachedValue();
|
|
MOZ_ASSERT(aValue.FindChar(u'\r') == -1);
|
|
return;
|
|
}
|
|
|
|
aValue.Truncate(); // initialize out param
|
|
|
|
uint32_t flags = (nsIDocumentEncoder::OutputLFLineBreak |
|
|
nsIDocumentEncoder::OutputPreformatted |
|
|
nsIDocumentEncoder::OutputPersistNBSP |
|
|
nsIDocumentEncoder::OutputBodyOnly);
|
|
if (!aIgnoreWrap) {
|
|
TextControlElement::nsHTMLTextWrap wrapProp;
|
|
if (mTextCtrlElement &&
|
|
TextControlElement::GetWrapPropertyEnum(mTextCtrlElement, wrapProp) &&
|
|
wrapProp == TextControlElement::eHTMLTextWrap_Hard) {
|
|
flags |= nsIDocumentEncoder::OutputWrap;
|
|
}
|
|
}
|
|
|
|
// What follows is a bit of a hack. The problem is that we could be in
|
|
// this method because we're being destroyed for whatever reason while
|
|
// script is executing. If that happens, editor will run with the
|
|
// privileges of the executing script, which means it may not be able to
|
|
// access its own DOM nodes! Let's try to deal with that by pushing a null
|
|
// JSContext on the JSContext stack to make it clear that we're native
|
|
// code. Note that any script that's directly trying to access our value
|
|
// has to be going through some scriptable object to do that and that
|
|
// already does the relevant security checks.
|
|
// XXXbz if we could just get the textContent of our anonymous content (eg
|
|
// if plaintext editor didn't create <br> nodes all over), we wouldn't need
|
|
// this.
|
|
{ /* Scope for AutoNoJSAPI. */
|
|
AutoNoJSAPI nojsapi;
|
|
|
|
DebugOnly<nsresult> rv = mTextEditor->ComputeTextValue(flags, aValue);
|
|
MOZ_ASSERT(aValue.FindChar(u'\r') == -1);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Failed to get value");
|
|
}
|
|
// Only when the result doesn't include line breaks caused by hard-wrap,
|
|
// mCacheValue should cache the value.
|
|
if (!(flags & nsIDocumentEncoder::OutputWrap)) {
|
|
mBoundFrame->CacheValue(aValue);
|
|
} else {
|
|
mBoundFrame->ClearCachedValue();
|
|
}
|
|
} else if (!mTextCtrlElement->ValueChanged() || mValue.IsVoid()) {
|
|
// Use nsString to avoid copying string buffer at setting aValue.
|
|
nsString value;
|
|
mTextCtrlElement->GetDefaultValueFromContent(value, aForDisplay);
|
|
// TODO: We should make default value not include \r.
|
|
nsContentUtils::PlatformToDOMLineBreaks(value);
|
|
aValue = std::move(value);
|
|
} else {
|
|
aValue = mValue;
|
|
MOZ_ASSERT(aValue.FindChar(u'\r') == -1);
|
|
}
|
|
}
|
|
|
|
bool TextControlState::ValueEquals(const nsAString& aValue) const {
|
|
nsAutoString value;
|
|
GetValue(value, true, /* aForDisplay = */ true);
|
|
return aValue.Equals(value);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
// @param aOptions TextControlState::ValueSetterOptions
|
|
bool AreFlagsNotDemandingContradictingMovements(
|
|
const ValueSetterOptions& aOptions) {
|
|
return !aOptions.contains(
|
|
{ValueSetterOption::MoveCursorToBeginSetSelectionDirectionForward,
|
|
ValueSetterOption::MoveCursorToEndIfValueChanged});
|
|
}
|
|
#endif // DEBUG
|
|
|
|
bool TextControlState::SetValue(const nsAString& aValue,
|
|
const nsAString* aOldValue,
|
|
const ValueSetterOptions& aOptions) {
|
|
if (mHandlingState &&
|
|
mHandlingState->IsHandling(TextControlAction::CommitComposition)) {
|
|
// GetValue doesn't return current text frame's content during committing.
|
|
// So we cannot trust this old value
|
|
aOldValue = nullptr;
|
|
}
|
|
|
|
if (mPasswordMaskData) {
|
|
if (mHandlingState &&
|
|
mHandlingState->Is(TextControlAction::UnbindFromFrame)) {
|
|
// If we're called by UnbindFromFrame, we shouldn't reset unmasked range.
|
|
} else {
|
|
// Otherwise, we should mask the new password, even if it's same value
|
|
// since the same value may be one for different web app's.
|
|
mPasswordMaskData->Reset();
|
|
}
|
|
}
|
|
|
|
const bool wasHandlingSetValue =
|
|
mHandlingState && mHandlingState->IsHandling(TextControlAction::SetValue);
|
|
|
|
ErrorResult error;
|
|
AutoTextControlHandlingState handlingSetValue(
|
|
*this, TextControlAction::SetValue, aValue, aOldValue, aOptions, error);
|
|
if (error.Failed()) {
|
|
MOZ_ASSERT(error.ErrorCodeIs(NS_ERROR_OUT_OF_MEMORY));
|
|
error.SuppressException();
|
|
return false;
|
|
}
|
|
|
|
const auto changeKind = [&] {
|
|
if (aOptions.contains(ValueSetterOption::ByInternalAPI)) {
|
|
return ValueChangeKind::Internal;
|
|
}
|
|
if (aOptions.contains(ValueSetterOption::BySetUserInputAPI)) {
|
|
return ValueChangeKind::UserInteraction;
|
|
}
|
|
return ValueChangeKind::Script;
|
|
}();
|
|
|
|
if (changeKind == ValueChangeKind::Script) {
|
|
// This value change will not be interactive. If we're an input that was
|
|
// interactively edited, save the last interactive value now before it goes
|
|
// away.
|
|
if (auto* input = HTMLInputElement::FromNode(mTextCtrlElement)) {
|
|
if (input->LastValueChangeWasInteractive()) {
|
|
GetValue(mLastInteractiveValue, /* aIgnoreWrap = */ true,
|
|
/* aForDisplay = */ true);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Note that if this may be called during reframe of the editor. In such
|
|
// case, we shouldn't commit composition. Therefore, when this is called
|
|
// for internal processing, we shouldn't commit the composition.
|
|
// TODO: In strictly speaking, we should move committing composition into
|
|
// editor because if "beforeinput" for this setting value is canceled,
|
|
// we shouldn't commit composition. However, in Firefox, we never
|
|
// call this via `setUserInput` during composition. Therefore, the
|
|
// bug must not be reproducible actually.
|
|
if (aOptions.contains(ValueSetterOption::BySetUserInputAPI) ||
|
|
aOptions.contains(ValueSetterOption::ByContentAPI)) {
|
|
if (EditorHasComposition()) {
|
|
// When this is called recursively, there shouldn't be composition.
|
|
if (handlingSetValue.IsHandling(TextControlAction::CommitComposition)) {
|
|
// Don't request to commit composition again. But if it occurs,
|
|
// we should skip to set the new value to the editor here. It should
|
|
// be set later with the newest value.
|
|
return true;
|
|
}
|
|
if (NS_WARN_IF(!mBoundFrame)) {
|
|
// We're not sure if this case is possible.
|
|
} else {
|
|
// If setting value won't change current value, we shouldn't commit
|
|
// composition for compatibility with the other browsers.
|
|
MOZ_ASSERT(!aOldValue || ValueEquals(*aOldValue));
|
|
bool isSameAsCurrentValue =
|
|
aOldValue ? aOldValue->Equals(handlingSetValue.GetSettingValue())
|
|
: ValueEquals(handlingSetValue.GetSettingValue());
|
|
if (isSameAsCurrentValue) {
|
|
// Note that in this case, we shouldn't fire any events with setting
|
|
// value because event handlers may try to set value recursively but
|
|
// we cannot commit composition at that time due to unsafe to run
|
|
// script (see below).
|
|
return true;
|
|
}
|
|
}
|
|
// If there is composition, need to commit composition first because
|
|
// other browsers do that.
|
|
// NOTE: We don't need to block nested calls of this because input nor
|
|
// other events won't be fired by setting values and script blocker
|
|
// is used during setting the value to the editor. IE also allows
|
|
// to set the editor value on the input event which is caused by
|
|
// forcibly committing composition.
|
|
AutoTextControlHandlingState handlingCommitComposition(
|
|
*this, TextControlAction::CommitComposition);
|
|
if (nsContentUtils::IsSafeToRunScript()) {
|
|
// WARNING: During this call, compositionupdate, compositionend, input
|
|
// events will be fired. Therefore, everything can occur. E.g., the
|
|
// document may be unloaded.
|
|
RefPtr<TextEditor> textEditor = mTextEditor;
|
|
nsresult rv = textEditor->CommitComposition();
|
|
if (handlingCommitComposition.IsTextControlStateDestroyed()) {
|
|
return true;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("TextControlState failed to commit composition");
|
|
return true;
|
|
}
|
|
// Note that if a composition event listener sets editor value again,
|
|
// we should use the new value here. The new value is stored in
|
|
// handlingSetValue right now.
|
|
} else {
|
|
NS_WARNING(
|
|
"SetValue() is called when there is composition but "
|
|
"it's not safe to request to commit the composition");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mTextEditor && mBoundFrame) {
|
|
if (!SetValueWithTextEditor(handlingSetValue)) {
|
|
return false;
|
|
}
|
|
} else if (!SetValueWithoutTextEditor(handlingSetValue)) {
|
|
return false;
|
|
}
|
|
|
|
// If we were handling SetValue() before, don't update the DOM state twice,
|
|
// just let the outer call do so.
|
|
if (!wasHandlingSetValue) {
|
|
handlingSetValue.GetTextControlElement()->OnValueChanged(
|
|
changeKind, handlingSetValue.GetSettingValue());
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool TextControlState::SetValueWithTextEditor(
|
|
AutoTextControlHandlingState& aHandlingSetValue) {
|
|
MOZ_ASSERT(aHandlingSetValue.Is(TextControlAction::SetValue));
|
|
MOZ_ASSERT(mTextEditor);
|
|
MOZ_ASSERT(mBoundFrame);
|
|
NS_WARNING_ASSERTION(!EditorHasComposition(),
|
|
"Failed to commit composition before setting value. "
|
|
"Investigate the cause!");
|
|
|
|
#ifdef DEBUG
|
|
if (IsSingleLineTextControl()) {
|
|
NS_ASSERTION(mEditorInitialized || aHandlingSetValue.IsHandling(
|
|
TextControlAction::PrepareEditor),
|
|
"We should never try to use the editor if we're not "
|
|
"initialized unless we're being initialized");
|
|
}
|
|
#endif
|
|
|
|
MOZ_ASSERT(!aHandlingSetValue.GetOldValue() ||
|
|
ValueEquals(*aHandlingSetValue.GetOldValue()));
|
|
const bool isSameAsCurrentValue =
|
|
aHandlingSetValue.GetOldValue()
|
|
? aHandlingSetValue.GetOldValue()->Equals(
|
|
aHandlingSetValue.GetSettingValue())
|
|
: ValueEquals(aHandlingSetValue.GetSettingValue());
|
|
|
|
// this is necessary to avoid infinite recursion
|
|
if (isSameAsCurrentValue) {
|
|
return true;
|
|
}
|
|
|
|
RefPtr<TextEditor> textEditor = mTextEditor;
|
|
|
|
nsCOMPtr<Document> document = textEditor->GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return true;
|
|
}
|
|
|
|
// Time to mess with our security context... See comments in GetValue()
|
|
// for why this is needed. Note that we have to do this up here, because
|
|
// otherwise SelectAll() will fail.
|
|
AutoNoJSAPI nojsapi;
|
|
|
|
// FYI: It's safe to use raw pointer for selection here because
|
|
// SelectionBatcher will grab it with RefPtr.
|
|
Selection* selection = mSelCon->GetSelection(SelectionType::eNormal);
|
|
SelectionBatcher selectionBatcher(selection, __FUNCTION__);
|
|
|
|
// get the flags, remove readonly, disabled and max-length,
|
|
// set the value, restore flags
|
|
AutoRestoreEditorState restoreState(textEditor);
|
|
|
|
aHandlingSetValue.WillSetValueWithTextEditor();
|
|
|
|
if (aHandlingSetValue.ValueSetterOptionsRef().contains(
|
|
ValueSetterOption::BySetUserInputAPI)) {
|
|
// If the caller inserts text as part of user input, for example,
|
|
// autocomplete, we need to replace the text as "insert string"
|
|
// because undo should cancel only this operation (i.e., previous
|
|
// transactions typed by user shouldn't be merged with this).
|
|
// In this case, we need to dispatch "input" event because
|
|
// web apps may need to know the user's operation.
|
|
// In this case, we need to dispatch "beforeinput" events since
|
|
// we're emulating the user's input. Passing nullptr as
|
|
// nsIPrincipal means that that may be user's input. So, let's
|
|
// do it.
|
|
nsresult rv = textEditor->ReplaceTextAsAction(
|
|
aHandlingSetValue.GetSettingValue(), nullptr,
|
|
StaticPrefs::dom_input_event_allow_to_cancel_set_user_input()
|
|
? TextEditor::AllowBeforeInputEventCancelable::Yes
|
|
: TextEditor::AllowBeforeInputEventCancelable::No,
|
|
nullptr);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::ReplaceTextAsAction() failed");
|
|
return rv != NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
// Don't dispatch "beforeinput" event nor "input" event for setting value
|
|
// by script.
|
|
AutoInputEventSuppresser suppressInputEventDispatching(textEditor);
|
|
|
|
// On <input> or <textarea>, we shouldn't preserve existing undo
|
|
// transactions because other browsers do not preserve them too
|
|
// and not preserving transactions makes setting value faster.
|
|
//
|
|
// (Except if chrome opts into this behavior).
|
|
Maybe<AutoDisableUndo> disableUndo;
|
|
if (!aHandlingSetValue.ValueSetterOptionsRef().contains(
|
|
ValueSetterOption::PreserveUndoHistory)) {
|
|
disableUndo.emplace(textEditor);
|
|
}
|
|
|
|
if (selection) {
|
|
// Since we don't use undo transaction, we don't need to store
|
|
// selection state. SetText will set selection to tail.
|
|
IgnoredErrorResult ignoredError;
|
|
MOZ_KnownLive(selection)->RemoveAllRanges(ignoredError);
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(),
|
|
"Selection::RemoveAllRanges() failed, but ignored");
|
|
}
|
|
|
|
// In this case, we makes the editor stop dispatching "input"
|
|
// event so that passing nullptr as nsIPrincipal is safe for now.
|
|
nsresult rv = textEditor->SetTextAsAction(
|
|
aHandlingSetValue.GetSettingValue(),
|
|
aHandlingSetValue.ValueSetterOptionsRef().contains(
|
|
ValueSetterOption::BySetUserInputAPI) &&
|
|
!StaticPrefs::dom_input_event_allow_to_cancel_set_user_input()
|
|
? TextEditor::AllowBeforeInputEventCancelable::No
|
|
: TextEditor::AllowBeforeInputEventCancelable::Yes,
|
|
nullptr);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"TextEditor::SetTextAsAction() failed");
|
|
|
|
// Call the listener's OnEditActionHandled() callback manually if
|
|
// OnEditActionHandled() hasn't been called yet since TextEditor don't use
|
|
// the transaction manager in this path and it could be that the editor
|
|
// would bypass calling the listener for that reason.
|
|
if (!aHandlingSetValue.HasEditActionHandled()) {
|
|
nsresult rvOnEditActionHandled =
|
|
MOZ_KnownLive(aHandlingSetValue.GetTextInputListener())
|
|
->OnEditActionHandled(*textEditor);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvOnEditActionHandled),
|
|
"TextInputListener::OnEditActionHandled() failed");
|
|
if (rv != NS_ERROR_OUT_OF_MEMORY) {
|
|
rv = rvOnEditActionHandled;
|
|
}
|
|
}
|
|
|
|
// When the <textarea> is not dirty, the default value is mirrored into the
|
|
// anonymous subtree asynchronously. This may occur during a reframe.
|
|
// Therefore, if IMEContentObserver was initialized with our editor but our
|
|
// editor is being initialized, it has not been observing the new anonymous
|
|
// subtree. In this case, we need to notify IMEContentObserver of the default
|
|
// value change.
|
|
if (mTextCtrlElement && mTextCtrlElement->IsTextArea() &&
|
|
!mTextCtrlElement->ValueChanged() && textEditor->IsBeingInitialized() &&
|
|
!textEditor->Destroyed()) {
|
|
IMEContentObserver* observer = GetIMEContentObserver();
|
|
if (observer && observer->WasInitializedWith(*textEditor)) {
|
|
nsAutoString currentValue;
|
|
textEditor->ComputeTextValue(0, currentValue);
|
|
observer->OnTextControlValueChangedWhileNotObservable(currentValue);
|
|
}
|
|
}
|
|
|
|
return rv != NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
bool TextControlState::SetValueWithoutTextEditor(
|
|
AutoTextControlHandlingState& aHandlingSetValue) {
|
|
MOZ_ASSERT(aHandlingSetValue.Is(TextControlAction::SetValue));
|
|
MOZ_ASSERT(!mTextEditor || !mBoundFrame);
|
|
NS_WARNING_ASSERTION(!EditorHasComposition(),
|
|
"Failed to commit composition before setting value. "
|
|
"Investigate the cause!");
|
|
|
|
if (mValue.IsVoid()) {
|
|
mValue.SetIsVoid(false);
|
|
}
|
|
|
|
// We can't just early-return here, because OnValueChanged below still need to
|
|
// be called.
|
|
if (!mValue.Equals(aHandlingSetValue.GetSettingValue())) {
|
|
bool handleSettingValue = true;
|
|
// If `SetValue()` call is nested, `GetSettingValue()` result will be
|
|
// modified. So, we need to store input event data value before
|
|
// dispatching beforeinput event.
|
|
nsString inputEventData(aHandlingSetValue.GetSettingValue());
|
|
if (aHandlingSetValue.ValueSetterOptionsRef().contains(
|
|
ValueSetterOption::BySetUserInputAPI) &&
|
|
!aHandlingSetValue.HasBeforeInputEventDispatched()) {
|
|
// This probably occurs when session restorer sets the old value with
|
|
// `setUserInput`. If so, we need to dispatch "beforeinput" event of
|
|
// "insertReplacementText" for conforming to the spec. However, the
|
|
// spec does NOT treat the session restoring case. Therefore, if this
|
|
// breaks session restorere in a lot of web apps, we should probably
|
|
// stop dispatching it or make it non-cancelable.
|
|
MOZ_ASSERT(aHandlingSetValue.GetTextControlElement());
|
|
MOZ_ASSERT(!aHandlingSetValue.GetSettingValue().IsVoid());
|
|
aHandlingSetValue.WillDispatchBeforeInputEvent();
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
DebugOnly<nsresult> rvIgnored = nsContentUtils::DispatchInputEvent(
|
|
MOZ_KnownLive(aHandlingSetValue.GetTextControlElement()),
|
|
eEditorBeforeInput, EditorInputType::eInsertReplacementText, nullptr,
|
|
InputEventOptions(
|
|
inputEventData,
|
|
StaticPrefs::dom_input_event_allow_to_cancel_set_user_input()
|
|
? InputEventOptions::NeverCancelable::No
|
|
: InputEventOptions::NeverCancelable::Yes),
|
|
&status);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"Failed to dispatch beforeinput event");
|
|
if (status == nsEventStatus_eConsumeNoDefault) {
|
|
return true; // "beforeinput" event was canceled.
|
|
}
|
|
// If we were destroyed by "beforeinput" event listeners, probably, we
|
|
// don't need to keep handling it.
|
|
if (aHandlingSetValue.IsTextControlStateDestroyed()) {
|
|
return true;
|
|
}
|
|
// Even if "beforeinput" event was not canceled, its listeners may do
|
|
// something. If it causes creating `TextEditor` and bind this to a
|
|
// frame, we need to use the path, but `TextEditor` shouldn't fire
|
|
// "beforeinput" event again. Therefore, we need to prevent editor
|
|
// to dispatch it.
|
|
if (mTextEditor && mBoundFrame) {
|
|
AutoInputEventSuppresser suppressInputEvent(mTextEditor);
|
|
if (!SetValueWithTextEditor(aHandlingSetValue)) {
|
|
return false;
|
|
}
|
|
// If we were destroyed by "beforeinput" event listeners, probably, we
|
|
// don't need to keep handling it.
|
|
if (aHandlingSetValue.IsTextControlStateDestroyed()) {
|
|
return true;
|
|
}
|
|
handleSettingValue = false;
|
|
}
|
|
}
|
|
|
|
if (handleSettingValue) {
|
|
if (!mValue.Assign(aHandlingSetValue.GetSettingValue(), fallible)) {
|
|
return false;
|
|
}
|
|
|
|
// Since we have no editor we presumably have cached selection state.
|
|
if (IsSelectionCached()) {
|
|
MOZ_ASSERT(AreFlagsNotDemandingContradictingMovements(
|
|
aHandlingSetValue.ValueSetterOptionsRef()));
|
|
|
|
SelectionProperties& props = GetSelectionProperties();
|
|
// Setting a max length and thus capping selection range early prevents
|
|
// selection change detection in setRangeText. Temporarily disable
|
|
// capping here with UINT32_MAX, and set it later in ::SetRangeText().
|
|
props.SetMaxLength(aHandlingSetValue.ValueSetterOptionsRef().contains(
|
|
ValueSetterOption::BySetRangeTextAPI)
|
|
? UINT32_MAX
|
|
: aHandlingSetValue.GetSettingValue().Length());
|
|
if (aHandlingSetValue.ValueSetterOptionsRef().contains(
|
|
ValueSetterOption::MoveCursorToEndIfValueChanged)) {
|
|
props.SetStart(aHandlingSetValue.GetSettingValue().Length());
|
|
props.SetEnd(aHandlingSetValue.GetSettingValue().Length());
|
|
props.SetDirection(SelectionDirection::Forward);
|
|
} else if (aHandlingSetValue.ValueSetterOptionsRef().contains(
|
|
ValueSetterOption::
|
|
MoveCursorToBeginSetSelectionDirectionForward)) {
|
|
props.SetStart(0);
|
|
props.SetEnd(0);
|
|
props.SetDirection(SelectionDirection::Forward);
|
|
}
|
|
}
|
|
|
|
// Update the frame display if needed
|
|
if (mBoundFrame) {
|
|
mBoundFrame->UpdateValueDisplay(true);
|
|
}
|
|
|
|
// If the text control element has focus, IMEContentObserver is not
|
|
// observing the content changes due to no bound frame or no TextEditor.
|
|
// Therefore, we need to let IMEContentObserver know all values are being
|
|
// replaced.
|
|
if (IMEContentObserver* observer = GetIMEContentObserver()) {
|
|
observer->OnTextControlValueChangedWhileNotObservable(mValue);
|
|
}
|
|
}
|
|
|
|
// If this is called as part of user input, we need to dispatch "input"
|
|
// event with "insertReplacementText" since web apps may want to know
|
|
// the user operation which changes editor value with a built-in function
|
|
// like autocomplete, password manager, session restore, etc.
|
|
// XXX Should we stop dispatching `input` event if the text control
|
|
// element has already removed from the DOM tree by a `beforeinput`
|
|
// event listener?
|
|
if (aHandlingSetValue.ValueSetterOptionsRef().contains(
|
|
ValueSetterOption::BySetUserInputAPI)) {
|
|
MOZ_ASSERT(aHandlingSetValue.GetTextControlElement());
|
|
|
|
// Update validity state before dispatching "input" event for its
|
|
// listeners like `EditorBase::NotifyEditorObservers()`.
|
|
aHandlingSetValue.GetTextControlElement()->OnValueChanged(
|
|
ValueChangeKind::UserInteraction,
|
|
aHandlingSetValue.GetSettingValue());
|
|
|
|
ClearLastInteractiveValue();
|
|
|
|
MOZ_ASSERT(!aHandlingSetValue.GetSettingValue().IsVoid());
|
|
DebugOnly<nsresult> rvIgnored = nsContentUtils::DispatchInputEvent(
|
|
MOZ_KnownLive(aHandlingSetValue.GetTextControlElement()),
|
|
eEditorInput, EditorInputType::eInsertReplacementText, nullptr,
|
|
InputEventOptions(inputEventData,
|
|
InputEventOptions::NeverCancelable::No));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"Failed to dispatch input event");
|
|
}
|
|
} else {
|
|
// Even if our value is not actually changing, apparently we need to mark
|
|
// our SelectionProperties dirty to make accessibility tests happy.
|
|
// Probably because they depend on the SetSelectionRange() call we make on
|
|
// our frame in RestoreSelectionState, but I have no idea why they do.
|
|
if (IsSelectionCached()) {
|
|
SelectionProperties& props = GetSelectionProperties();
|
|
props.SetIsDirty();
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void TextControlState::InitializeKeyboardEventListeners() {
|
|
// register key listeners
|
|
EventListenerManager* manager =
|
|
mTextCtrlElement->GetOrCreateListenerManager();
|
|
if (manager) {
|
|
manager->AddEventListenerByType(mTextListener, u"keydown"_ns,
|
|
TrustedEventsAtSystemGroupBubble());
|
|
manager->AddEventListenerByType(mTextListener, u"keypress"_ns,
|
|
TrustedEventsAtSystemGroupBubble());
|
|
manager->AddEventListenerByType(mTextListener, u"keyup"_ns,
|
|
TrustedEventsAtSystemGroupBubble());
|
|
}
|
|
|
|
mSelCon->SetScrollContainerFrame(mBoundFrame->GetScrollTargetFrame());
|
|
}
|
|
|
|
void TextControlState::SetPreviewText(const nsAString& aValue, bool aNotify) {
|
|
// If we don't have a preview div, there's nothing to do.
|
|
Element* previewDiv = GetPreviewNode();
|
|
if (!previewDiv) {
|
|
return;
|
|
}
|
|
|
|
nsAutoString previewValue(aValue);
|
|
|
|
nsContentUtils::RemoveNewlines(previewValue);
|
|
MOZ_ASSERT(previewDiv->GetFirstChild(), "preview div has no child");
|
|
previewDiv->GetFirstChild()->AsText()->SetText(previewValue, aNotify);
|
|
}
|
|
|
|
void TextControlState::GetPreviewText(nsAString& aValue) {
|
|
// If we don't have a preview div, there's nothing to do.
|
|
Element* previewDiv = GetPreviewNode();
|
|
if (!previewDiv) {
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(previewDiv->GetFirstChild(), "preview div has no child");
|
|
const nsTextFragment* text = previewDiv->GetFirstChild()->GetText();
|
|
|
|
aValue.Truncate();
|
|
text->AppendTo(aValue);
|
|
}
|
|
|
|
bool TextControlState::EditorHasComposition() {
|
|
return mTextEditor && mTextEditor->IsIMEComposing();
|
|
}
|
|
|
|
IMEContentObserver* TextControlState::GetIMEContentObserver() const {
|
|
if (NS_WARN_IF(!mTextCtrlElement) ||
|
|
mTextCtrlElement != IMEStateManager::GetFocusedElement()) {
|
|
return nullptr;
|
|
}
|
|
IMEContentObserver* observer = IMEStateManager::GetActiveContentObserver();
|
|
// The text control element may be an editing host. In this case, the
|
|
// observer does not observe the anonymous nodes under mTextCtrlElement.
|
|
// So, it means that the observer is not for ours.
|
|
return observer && observer->EditorIsTextEditor() ? observer : nullptr;
|
|
}
|
|
|
|
} // namespace mozilla
|