forked from mirrors/gecko-dev
6513faf43f
Similar to the previous patch, this changes a lot of lines. However, I think that it's not so hard to investigate regression point in this patch because `CreateNodeResultBase` is not used so many times at handling on edit action. Differential Revision: https://phabricator.services.mozilla.com/D157575
3220 lines
134 KiB
C++
3220 lines
134 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "ErrorList.h"
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#include "HTMLEditor.h"
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#include "AutoRangeArray.h"
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#include "EditAction.h"
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#include "EditorUtils.h"
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#include "HTMLEditHelpers.h"
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#include "HTMLEditUtils.h"
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#include "PendingStyles.h"
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#include "SelectionState.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/ContentIterator.h"
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#include "mozilla/EditorForwards.h"
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#include "mozilla/mozalloc.h"
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#include "mozilla/dom/AncestorIterator.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/HTMLBRElement.h"
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#include "mozilla/dom/Selection.h"
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#include "nsAString.h"
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#include "nsAttrName.h"
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#include "nsCOMPtr.h"
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#include "nsCaseTreatment.h"
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#include "nsComponentManagerUtils.h"
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#include "nsDebug.h"
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#include "nsError.h"
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#include "nsGkAtoms.h"
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#include "nsAtom.h"
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#include "nsIContent.h"
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#include "nsNameSpaceManager.h"
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#include "nsINode.h"
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#include "nsIPrincipal.h"
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#include "nsISupportsImpl.h"
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#include "nsLiteralString.h"
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#include "nsRange.h"
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#include "nsReadableUtils.h"
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#include "nsString.h"
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#include "nsStringFwd.h"
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#include "nsStyledElement.h"
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#include "nsTArray.h"
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#include "nsUnicharUtils.h"
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#include "nscore.h"
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class nsISupports;
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namespace mozilla {
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using namespace dom;
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using EmptyCheckOption = HTMLEditUtils::EmptyCheckOption;
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using LeafNodeType = HTMLEditUtils::LeafNodeType;
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using LeafNodeTypes = HTMLEditUtils::LeafNodeTypes;
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using WalkTreeOption = HTMLEditUtils::WalkTreeOption;
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template nsresult HTMLEditor::SetInlinePropertiesAsSubAction(
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const AutoTArray<EditorInlineStyleAndValue, 1>& aStylesToSet);
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template nsresult HTMLEditor::SetInlinePropertiesAsSubAction(
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const AutoTArray<EditorInlineStyleAndValue, 32>& aStylesToSet);
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nsresult HTMLEditor::SetInlinePropertyAsAction(nsStaticAtom& aProperty,
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nsStaticAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aPrincipal) {
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AutoEditActionDataSetter editActionData(
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*this,
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HTMLEditUtils::GetEditActionForFormatText(aProperty, aAttribute, true),
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aPrincipal);
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switch (editActionData.GetEditAction()) {
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case EditAction::eSetFontFamilyProperty:
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MOZ_ASSERT(!aValue.IsVoid());
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// XXX Should we trim unnecessary white-spaces?
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editActionData.SetData(aValue);
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break;
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case EditAction::eSetColorProperty:
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case EditAction::eSetBackgroundColorPropertyInline:
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editActionData.SetColorData(aValue);
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break;
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default:
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break;
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}
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nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
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if (NS_FAILED(rv)) {
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NS_WARNING_ASSERTION(rv == NS_ERROR_EDITOR_ACTION_CANCELED,
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"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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// XXX Due to bug 1659276 and bug 1659924, we should not scroll selection
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// into view after setting the new style.
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AutoPlaceholderBatch treatAsOneTransaction(*this, ScrollSelectionIntoView::No,
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__FUNCTION__);
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nsStaticAtom* property = &aProperty;
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nsStaticAtom* attribute = aAttribute;
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nsString value(aValue);
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AutoTArray<EditorInlineStyle, 1> stylesToRemove;
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if (&aProperty == nsGkAtoms::sup) {
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// Superscript and Subscript styles are mutually exclusive.
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stylesToRemove.AppendElement(EditorInlineStyle(*nsGkAtoms::sub));
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} else if (&aProperty == nsGkAtoms::sub) {
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// Superscript and Subscript styles are mutually exclusive.
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stylesToRemove.AppendElement(EditorInlineStyle(*nsGkAtoms::sup));
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}
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// Handling `<tt>` element code was implemented for composer (bug 115922).
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// This shouldn't work with `Document.execCommand()`. Currently, aPrincipal
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// is set only when the root caller is Document::ExecCommand() so that
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// we should handle `<tt>` element only when aPrincipal is nullptr that
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// must be only when XUL command is executed on composer.
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else if (!aPrincipal) {
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if (&aProperty == nsGkAtoms::tt) {
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stylesToRemove.AppendElement(
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EditorInlineStyle(*nsGkAtoms::font, nsGkAtoms::face));
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} else if (&aProperty == nsGkAtoms::font && aAttribute == nsGkAtoms::face) {
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if (!value.LowerCaseEqualsASCII("tt")) {
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stylesToRemove.AppendElement(EditorInlineStyle(*nsGkAtoms::tt));
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} else {
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stylesToRemove.AppendElement(
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EditorInlineStyle(*nsGkAtoms::font, nsGkAtoms::face));
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// Override property, attribute and value if the new font face value is
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// "tt".
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property = nsGkAtoms::tt;
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attribute = nullptr;
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value.Truncate();
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}
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}
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}
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if (!stylesToRemove.IsEmpty()) {
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nsresult rv = RemoveInlinePropertiesAsSubAction(stylesToRemove);
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if (NS_FAILED(rv)) {
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NS_WARNING("HTMLEditor::RemoveInlinePropertiesAsSubAction() failed");
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return rv;
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}
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}
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AutoTArray<EditorInlineStyleAndValue, 1> styleToSet;
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styleToSet.AppendElement(
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attribute
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? EditorInlineStyleAndValue(*property, *attribute, std::move(value))
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: EditorInlineStyleAndValue(*property));
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rv = SetInlinePropertiesAsSubAction(styleToSet);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"HTMLEditor::SetInlinePropertiesAsSubAction() failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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NS_IMETHODIMP HTMLEditor::SetInlineProperty(const nsAString& aProperty,
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const nsAString& aAttribute,
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const nsAString& aValue) {
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nsStaticAtom* property = NS_GetStaticAtom(aProperty);
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if (NS_WARN_IF(!property)) {
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return NS_ERROR_INVALID_ARG;
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}
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nsStaticAtom* attribute = EditorUtils::GetAttributeAtom(aAttribute);
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AutoEditActionDataSetter editActionData(
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*this,
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HTMLEditUtils::GetEditActionForFormatText(*property, attribute, true));
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switch (editActionData.GetEditAction()) {
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case EditAction::eSetFontFamilyProperty:
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MOZ_ASSERT(!aValue.IsVoid());
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// XXX Should we trim unnecessary white-spaces?
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editActionData.SetData(aValue);
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break;
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case EditAction::eSetColorProperty:
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case EditAction::eSetBackgroundColorPropertyInline:
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editActionData.SetColorData(aValue);
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break;
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default:
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break;
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}
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nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
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if (NS_FAILED(rv)) {
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NS_WARNING_ASSERTION(rv == NS_ERROR_EDITOR_ACTION_CANCELED,
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"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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AutoTArray<EditorInlineStyleAndValue, 1> styleToSet;
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styleToSet.AppendElement(
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attribute ? EditorInlineStyleAndValue(*property, *attribute, aValue)
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: EditorInlineStyleAndValue(*property));
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rv = SetInlinePropertiesAsSubAction(styleToSet);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"HTMLEditor::SetInlinePropertiesAsSubAction() failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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template <size_t N>
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nsresult HTMLEditor::SetInlinePropertiesAsSubAction(
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const AutoTArray<EditorInlineStyleAndValue, N>& aStylesToSet) {
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MOZ_ASSERT(IsEditActionDataAvailable());
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MOZ_ASSERT(!aStylesToSet.IsEmpty());
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DebugOnly<nsresult> rvIgnored = CommitComposition();
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
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"EditorBase::CommitComposition() failed, but ignored");
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if (SelectionRef().IsCollapsed()) {
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// Manipulating text attributes on a collapsed selection only sets state
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// for the next text insertion
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mPendingStylesToApplyToNewContent->PreserveStyles(aStylesToSet);
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return NS_OK;
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}
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// XXX Shouldn't we return before calling `CommitComposition()`?
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if (IsInPlaintextMode()) {
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return NS_OK;
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}
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EditActionResult result = CanHandleHTMLEditSubAction();
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if (result.Failed() || result.Canceled()) {
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NS_WARNING_ASSERTION(result.Succeeded(),
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"HTMLEditor::CanHandleHTMLEditSubAction() failed");
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return result.Rv();
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}
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AutoPlaceholderBatch treatAsOneTransaction(
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*this, ScrollSelectionIntoView::Yes, __FUNCTION__);
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IgnoredErrorResult ignoredError;
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AutoEditSubActionNotifier startToHandleEditSubAction(
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*this, EditSubAction::eInsertElement, nsIEditor::eNext, ignoredError);
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if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
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return ignoredError.StealNSResult();
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}
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NS_WARNING_ASSERTION(
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!ignoredError.Failed(),
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"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
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// TODO: We don't need AutoTransactionsConserveSelection here in the normal
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// cases, but removing this may cause the behavior with the legacy
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// mutation event listeners. We should try to delete this in a bug.
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AutoTransactionsConserveSelection dontChangeMySelection(*this);
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AutoRangeArray selectionRanges(SelectionRef());
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for (const EditorInlineStyleAndValue& styleToSet : aStylesToSet) {
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// The ranges may be updated by changing the DOM tree. In strictly
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// speaking, we should save and restore the ranges at every range loop,
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// but we've never done so and it may be expensive if there are a lot of
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// ranges. Therefore, we should do it for every style handling for now.
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// TODO: We should collect everything required for removing the style before
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// touching the DOM tree. Then, we need to save and restore the
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// ranges only once.
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MOZ_ALWAYS_TRUE(selectionRanges.SaveAndTrackRanges(*this));
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for (const OwningNonNull<nsRange>& selectionRange :
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selectionRanges.Ranges()) {
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// Adjust range to include any ancestors whose children are entirely
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// selected
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nsresult rv = PromoteInlineRange(*selectionRange);
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if (NS_FAILED(rv)) {
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NS_WARNING("HTMLEditor::PromoteInlineRange() failed");
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return rv;
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}
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EditorDOMRange range(selectionRange);
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if (NS_WARN_IF(!range.IsPositioned())) {
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continue;
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}
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// If range is in a text node, apply new style simply.
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if (range.InSameContainer() && range.StartRef().IsInTextNode()) {
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// MOZ_KnownLive(...ContainerAs<Text>()) because of grabbed by `range`.
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// MOZ_KnownLive(styleToSet.*) due to bug 1622253.
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SplitRangeOffFromNodeResult wrapTextInStyledElementResult =
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SetInlinePropertyOnTextNode(
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MOZ_KnownLive(*range.StartRef().ContainerAs<Text>()),
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range.StartRef().Offset(), range.EndRef().Offset(),
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MOZ_KnownLive(styleToSet.HTMLPropertyRef()),
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MOZ_KnownLive(styleToSet.mAttribute),
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styleToSet.mAttributeValue);
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if (wrapTextInStyledElementResult.isErr()) {
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NS_WARNING("HTMLEditor::SetInlinePropertyOnTextNode() failed");
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return wrapTextInStyledElementResult.unwrapErr();
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}
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// There is AutoTransactionsConserveSelection, so we don't need to
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// update selection here.
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wrapTextInStyledElementResult.IgnoreCaretPointSuggestion();
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continue;
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}
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// Collect editable nodes which are entirely contained in the range.
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AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContentsAroundRange;
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{
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ContentSubtreeIterator subtreeIter;
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// If there is no node which is entirely in the range,
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// `ContentSubtreeIterator::Init()` fails, but this is possible case,
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// don't warn it.
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if (NS_SUCCEEDED(
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subtreeIter.Init(range.StartRef().ToRawRangeBoundary(),
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range.EndRef().ToRawRangeBoundary()))) {
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for (; !subtreeIter.IsDone(); subtreeIter.Next()) {
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nsINode* node = subtreeIter.GetCurrentNode();
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if (NS_WARN_IF(!node)) {
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return NS_ERROR_FAILURE;
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}
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if (node->IsContent() &&
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EditorUtils::IsEditableContent(*node->AsContent(),
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EditorType::HTML)) {
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arrayOfContentsAroundRange.AppendElement(*node->AsContent());
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}
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}
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}
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}
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// If start node is a text node, apply new style to a part of it.
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if (range.StartRef().IsInTextNode() &&
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EditorUtils::IsEditableContent(*range.StartRef().ContainerAs<Text>(),
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EditorType::HTML)) {
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// MOZ_KnownLive(...ContainerAs<Text>()) because of grabbed by `range`.
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// MOZ_KnownLive(styleToSet.*) due to bug 1622253.
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SplitRangeOffFromNodeResult wrapTextInStyledElementResult =
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SetInlinePropertyOnTextNode(
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MOZ_KnownLive(*range.StartRef().ContainerAs<Text>()),
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range.StartRef().Offset(),
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range.StartRef().ContainerAs<Text>()->TextDataLength(),
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MOZ_KnownLive(styleToSet.HTMLPropertyRef()),
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MOZ_KnownLive(styleToSet.mAttribute),
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styleToSet.mAttributeValue);
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if (wrapTextInStyledElementResult.isErr()) {
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NS_WARNING("HTMLEditor::SetInlinePropertyOnTextNode() failed");
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return wrapTextInStyledElementResult.unwrapErr();
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}
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// There is AutoTransactionsConserveSelection, so we don't need to
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// update selection here.
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wrapTextInStyledElementResult.IgnoreCaretPointSuggestion();
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}
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// Then, apply new style to all nodes in the range entirely.
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for (auto& content : arrayOfContentsAroundRange) {
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// MOZ_KnownLive due to bug 1622253.
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Result<EditorDOMPoint, nsresult> setStyleResult =
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SetInlinePropertyOnNode(MOZ_KnownLive(*content),
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MOZ_KnownLive(styleToSet.HTMLPropertyRef()),
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MOZ_KnownLive(styleToSet.mAttribute),
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styleToSet.mAttributeValue);
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if (MOZ_UNLIKELY(setStyleResult.isErr())) {
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NS_WARNING("HTMLEditor::SetInlinePropertyOnNode() failed");
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return setStyleResult.unwrapErr();
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}
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// There is AutoTransactionsConserveSelection, so we don't need to
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// update selection here.
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}
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// Finally, if end node is a text node, apply new style to a part of it.
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if (range.EndRef().IsInTextNode() &&
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EditorUtils::IsEditableContent(*range.EndRef().ContainerAs<Text>(),
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EditorType::HTML)) {
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// MOZ_KnownLive(...ContainerAs<Text>()) because of grabbed by `range`.
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// MOZ_KnownLive(styleToSet.mAttribute) due to bug 1622253.
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SplitRangeOffFromNodeResult wrapTextInStyledElementResult =
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SetInlinePropertyOnTextNode(
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MOZ_KnownLive(*range.EndRef().ContainerAs<Text>()), 0,
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range.EndRef().Offset(),
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MOZ_KnownLive(styleToSet.HTMLPropertyRef()),
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MOZ_KnownLive(styleToSet.mAttribute),
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styleToSet.mAttributeValue);
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if (wrapTextInStyledElementResult.isErr()) {
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NS_WARNING("HTMLEditor::SetInlinePropertyOnTextNode() failed");
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return wrapTextInStyledElementResult.unwrapErr();
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}
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// There is AutoTransactionsConserveSelection, so we don't need to
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// update selection here.
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wrapTextInStyledElementResult.IgnoreCaretPointSuggestion();
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}
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}
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MOZ_ASSERT(selectionRanges.HasSavedRanges());
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selectionRanges.RestoreFromSavedRanges();
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}
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MOZ_ASSERT(!selectionRanges.HasSavedRanges());
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nsresult rv = selectionRanges.ApplyTo(SelectionRef());
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if (NS_WARN_IF(Destroyed())) {
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return NS_ERROR_EDITOR_DESTROYED;
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}
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AutoRangeArray::ApplyTo() failed");
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return rv;
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}
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Result<bool, nsresult> HTMLEditor::ElementIsGoodContainerForTheStyle(
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Element& aElement, nsAtom* aProperty, nsAtom* aAttribute,
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const nsAString* aValue) {
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// aContent can be null, in which case we'll return false in a few lines
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MOZ_ASSERT(aProperty);
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MOZ_ASSERT_IF(aAttribute, aValue);
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// First check for <b>, <i>, etc.
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if (aElement.IsHTMLElement(aProperty) && !aElement.GetAttrCount() &&
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!aAttribute) {
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return true;
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}
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// Special cases for various equivalencies: <strong>, <em>, <s>
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if (!aElement.GetAttrCount() &&
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((aProperty == nsGkAtoms::b &&
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aElement.IsHTMLElement(nsGkAtoms::strong)) ||
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(aProperty == nsGkAtoms::i && aElement.IsHTMLElement(nsGkAtoms::em)) ||
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(aProperty == nsGkAtoms::strike &&
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aElement.IsHTMLElement(nsGkAtoms::s)))) {
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return true;
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}
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// Now look for things like <font>
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if (aAttribute) {
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nsString attrValue;
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if (aElement.IsHTMLElement(aProperty) &&
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IsOnlyAttribute(&aElement, aAttribute) &&
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aElement.GetAttr(kNameSpaceID_None, aAttribute, attrValue) &&
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attrValue.Equals(*aValue, nsCaseInsensitiveStringComparator)) {
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// This is not quite correct, because it excludes cases like
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// <font face=000> being the same as <font face=#000000>.
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// Property-specific handling is needed (bug 760211).
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return true;
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}
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}
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// No luck so far. Now we check for a <span> with a single style=""
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// attribute that sets only the style we're looking for, if this type of
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// style supports it
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if (!CSSEditUtils::IsCSSEditableProperty(&aElement, aProperty, aAttribute) ||
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!aElement.IsHTMLElement(nsGkAtoms::span) ||
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aElement.GetAttrCount() != 1 ||
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!aElement.HasAttr(kNameSpaceID_None, nsGkAtoms::style)) {
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return false;
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}
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// Some CSS styles are not so simple. For instance, underline is
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// "text-decoration: underline", which decomposes into four different text-*
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// properties. So for now, we just create a span, add the desired style, and
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// see if it matches.
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RefPtr<Element> newSpanElement = CreateHTMLContent(nsGkAtoms::span);
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if (!newSpanElement) {
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NS_WARNING("EditorBase::CreateHTMLContent(nsGkAtoms::span) failed");
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return false;
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}
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nsStyledElement* styledNewSpanElement =
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nsStyledElement::FromNode(newSpanElement);
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if (!styledNewSpanElement) {
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return false;
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}
|
|
// MOZ_KnownLive(*styledNewSpanElement): It's newSpanElement whose type is
|
|
// RefPtr.
|
|
Result<int32_t, nsresult> result =
|
|
CSSEditUtils::SetCSSEquivalentToHTMLStyleWithoutTransaction(
|
|
*this, MOZ_KnownLive(*styledNewSpanElement), aProperty, aAttribute,
|
|
aValue);
|
|
if (result.isErr()) {
|
|
// The call shouldn't return destroyed error because it must be
|
|
// impossible to run script with modifying the new orphan node.
|
|
MOZ_ASSERT_UNREACHABLE("How did you destroy this editor?");
|
|
if (NS_WARN_IF(result.inspectErr() == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return Err(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
return false;
|
|
}
|
|
nsStyledElement* styledElement = nsStyledElement::FromNode(&aElement);
|
|
if (!styledElement) {
|
|
return false;
|
|
}
|
|
return CSSEditUtils::DoStyledElementsHaveSameStyle(*styledNewSpanElement,
|
|
*styledElement);
|
|
}
|
|
|
|
SplitRangeOffFromNodeResult HTMLEditor::SetInlinePropertyOnTextNode(
|
|
Text& aText, uint32_t aStartOffset, uint32_t aEndOffset, nsAtom& aProperty,
|
|
nsAtom* aAttribute, const nsAString& aValue) {
|
|
if (!aText.GetParentNode() ||
|
|
!HTMLEditUtils::CanNodeContain(*aText.GetParentNode(), aProperty)) {
|
|
return SplitRangeOffFromNodeResult(nullptr, &aText, nullptr);
|
|
}
|
|
|
|
// Don't need to do anything if no characters actually selected
|
|
if (aStartOffset == aEndOffset) {
|
|
return SplitRangeOffFromNodeResult(nullptr, &aText, nullptr);
|
|
}
|
|
|
|
// Don't need to do anything if property already set on node
|
|
if (CSSEditUtils::IsCSSEditableProperty(&aText, &aProperty, aAttribute)) {
|
|
// The HTML styles defined by aProperty/aAttribute have a CSS equivalence
|
|
// for node; let's check if it carries those CSS styles
|
|
nsAutoString value(aValue);
|
|
Result<bool, nsresult> isComputedCSSEquivalentToHTMLInlineStyleOrError =
|
|
CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*this, aText, &aProperty, aAttribute, value);
|
|
if (isComputedCSSEquivalentToHTMLInlineStyleOrError.isErr()) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet() failed");
|
|
return SplitRangeOffFromNodeResult(
|
|
isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrapErr());
|
|
}
|
|
if (isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrap()) {
|
|
return SplitRangeOffFromNodeResult(nullptr, &aText, nullptr);
|
|
}
|
|
} else if (HTMLEditUtils::IsInlineStyleSetByElement(aText, aProperty,
|
|
aAttribute, &aValue)) {
|
|
return SplitRangeOffFromNodeResult(nullptr, &aText, nullptr);
|
|
}
|
|
|
|
// Make the range an independent node.
|
|
SplitNodeResult splitAtEndResult = [&]() MOZ_CAN_RUN_SCRIPT {
|
|
EditorDOMPoint atEnd(&aText, aEndOffset);
|
|
if (atEnd.IsEndOfContainer()) {
|
|
return SplitNodeResult::NotHandled(atEnd, GetSplitNodeDirection());
|
|
}
|
|
// We need to split off back of text node
|
|
SplitNodeResult splitNodeResult = SplitNodeWithTransaction(atEnd);
|
|
if (splitNodeResult.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return splitNodeResult;
|
|
}
|
|
if (MOZ_UNLIKELY(!splitNodeResult.HasCaretPointSuggestion())) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeWithTransaction() didn't suggest caret "
|
|
"point");
|
|
return SplitNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
return splitNodeResult;
|
|
}();
|
|
if (MOZ_UNLIKELY(splitAtEndResult.isErr())) {
|
|
return SplitRangeOffFromNodeResult(splitAtEndResult.unwrapErr());
|
|
}
|
|
EditorDOMPoint pointToPutCaret = splitAtEndResult.UnwrapCaretPoint();
|
|
SplitNodeResult splitAtStartResult = [&]() MOZ_CAN_RUN_SCRIPT {
|
|
EditorDOMPoint atStart(splitAtEndResult.DidSplit()
|
|
? splitAtEndResult.GetPreviousContent()
|
|
: &aText,
|
|
aStartOffset);
|
|
if (atStart.IsStartOfContainer()) {
|
|
return SplitNodeResult::NotHandled(atStart, GetSplitNodeDirection());
|
|
}
|
|
// We need to split off front of text node
|
|
SplitNodeResult splitNodeResult = SplitNodeWithTransaction(atStart);
|
|
if (splitNodeResult.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return splitNodeResult;
|
|
}
|
|
if (MOZ_UNLIKELY(!splitNodeResult.HasCaretPointSuggestion())) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeWithTransaction() didn't suggest caret "
|
|
"point");
|
|
return SplitNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
return splitNodeResult;
|
|
}();
|
|
if (MOZ_UNLIKELY(splitAtStartResult.isErr())) {
|
|
return SplitRangeOffFromNodeResult(splitAtStartResult.unwrapErr());
|
|
}
|
|
if (splitAtStartResult.HasCaretPointSuggestion()) {
|
|
pointToPutCaret = splitAtStartResult.UnwrapCaretPoint();
|
|
}
|
|
|
|
MOZ_ASSERT_IF(splitAtStartResult.DidSplit(),
|
|
splitAtStartResult.GetPreviousContent()->IsText());
|
|
MOZ_ASSERT_IF(splitAtStartResult.DidSplit(),
|
|
splitAtStartResult.GetNextContent()->IsText());
|
|
MOZ_ASSERT_IF(splitAtEndResult.DidSplit(),
|
|
splitAtEndResult.GetPreviousContent()->IsText());
|
|
MOZ_ASSERT_IF(splitAtEndResult.DidSplit(),
|
|
splitAtEndResult.GetNextContent()->IsText());
|
|
// Note that those text nodes are grabbed by splitAtStartResult,
|
|
// splitAtEndResult or the callers. Therefore, we don't need to make them
|
|
// strong pointer.
|
|
Text* const leftTextNode =
|
|
splitAtStartResult.DidSplit()
|
|
? Text::FromNode(splitAtStartResult.GetPreviousContent())
|
|
: nullptr;
|
|
Text* const middleTextNode =
|
|
splitAtStartResult.DidSplit()
|
|
? Text::FromNode(splitAtStartResult.GetNextContent())
|
|
: (splitAtEndResult.DidSplit()
|
|
? Text::FromNode(splitAtEndResult.GetPreviousContent())
|
|
: &aText);
|
|
Text* const rightTextNode =
|
|
splitAtEndResult.DidSplit()
|
|
? Text::FromNode(splitAtEndResult.GetNextContent())
|
|
: nullptr;
|
|
if (aAttribute) {
|
|
// Look for siblings that are correct type of node
|
|
nsIContent* sibling = HTMLEditUtils::GetPreviousSibling(
|
|
*middleTextNode, {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (sibling && sibling->IsElement()) {
|
|
OwningNonNull<Element> element(*sibling->AsElement());
|
|
Result<bool, nsresult> result = ElementIsGoodContainerForTheStyle(
|
|
element, &aProperty, aAttribute, &aValue);
|
|
if (MOZ_UNLIKELY(result.isErr())) {
|
|
NS_WARNING("HTMLEditor::ElementIsGoodContainerForTheStyle() failed");
|
|
return SplitRangeOffFromNodeResult(result.unwrapErr());
|
|
}
|
|
if (result.inspect()) {
|
|
// Previous sib is already right kind of inline node; slide this over
|
|
Result<MoveNodeResult, nsresult> moveTextNodeResult =
|
|
MoveNodeToEndWithTransaction(MOZ_KnownLive(*middleTextNode),
|
|
element);
|
|
if (MOZ_UNLIKELY(moveTextNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(moveTextNodeResult.unwrapErr());
|
|
}
|
|
MoveNodeResult unwrappedMoveTextNodeResult =
|
|
moveTextNodeResult.unwrap();
|
|
unwrappedMoveTextNodeResult.MoveCaretPointTo(
|
|
pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion});
|
|
return SplitRangeOffFromNodeResult(leftTextNode, middleTextNode,
|
|
rightTextNode,
|
|
std::move(pointToPutCaret));
|
|
}
|
|
}
|
|
sibling = HTMLEditUtils::GetNextSibling(
|
|
*middleTextNode, {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (sibling && sibling->IsElement()) {
|
|
OwningNonNull<Element> element(*sibling->AsElement());
|
|
Result<bool, nsresult> result = ElementIsGoodContainerForTheStyle(
|
|
element, &aProperty, aAttribute, &aValue);
|
|
if (MOZ_UNLIKELY(result.isErr())) {
|
|
NS_WARNING("HTMLEditor::ElementIsGoodContainerForTheStyle() failed");
|
|
return SplitRangeOffFromNodeResult(result.unwrapErr());
|
|
}
|
|
if (result.inspect()) {
|
|
// Following sib is already right kind of inline node; slide this over
|
|
Result<MoveNodeResult, nsresult> moveTextNodeResult =
|
|
MoveNodeWithTransaction(MOZ_KnownLive(*middleTextNode),
|
|
EditorDOMPoint(sibling, 0u));
|
|
if (MOZ_UNLIKELY(moveTextNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(moveTextNodeResult.unwrapErr());
|
|
}
|
|
MoveNodeResult unwrappedMoveTextNodeResult =
|
|
moveTextNodeResult.unwrap();
|
|
unwrappedMoveTextNodeResult.MoveCaretPointTo(
|
|
pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion});
|
|
return SplitRangeOffFromNodeResult(leftTextNode, middleTextNode,
|
|
rightTextNode,
|
|
std::move(pointToPutCaret));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Wrap the node inside inline node with appropriate {attribute,value}
|
|
Result<EditorDOMPoint, nsresult> setStyleResult = SetInlinePropertyOnNode(
|
|
MOZ_KnownLive(*middleTextNode), aProperty, aAttribute, aValue);
|
|
if (MOZ_UNLIKELY(setStyleResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetInlinePropertyOnNode() failed");
|
|
return SplitRangeOffFromNodeResult(setStyleResult.unwrapErr());
|
|
}
|
|
return SplitRangeOffFromNodeResult(leftTextNode, middleTextNode,
|
|
rightTextNode, setStyleResult.unwrap());
|
|
}
|
|
|
|
Result<EditorDOMPoint, nsresult> HTMLEditor::SetInlinePropertyOnNodeImpl(
|
|
nsIContent& aContent, nsAtom& aProperty, nsAtom* aAttribute,
|
|
const nsAString& aValue) {
|
|
// If this is an element that can't be contained in a span, we have to
|
|
// recurse to its children.
|
|
if (!HTMLEditUtils::CanNodeContain(*nsGkAtoms::span, aContent)) {
|
|
if (!aContent.HasChildren()) {
|
|
return EditorDOMPoint();
|
|
}
|
|
|
|
AutoTArray<OwningNonNull<nsIContent>, 32> arrayOfContents;
|
|
// Populate the list.
|
|
for (nsCOMPtr<nsIContent> child = aContent.GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
if (EditorUtils::IsEditableContent(*child, EditorType::HTML) &&
|
|
(!child->IsText() ||
|
|
HTMLEditUtils::IsVisibleTextNode(*child->AsText()))) {
|
|
arrayOfContents.AppendElement(*child);
|
|
}
|
|
}
|
|
|
|
// Then loop through the list, set the property on each node.
|
|
EditorDOMPoint pointToPutCaret;
|
|
for (const OwningNonNull<nsIContent>& content : arrayOfContents) {
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
Result<EditorDOMPoint, nsresult> setInlinePropertyResult =
|
|
SetInlinePropertyOnNode(MOZ_KnownLive(content), aProperty, aAttribute,
|
|
aValue);
|
|
if (MOZ_UNLIKELY(setInlinePropertyResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetInlinePropertyOnNode() failed");
|
|
return setInlinePropertyResult;
|
|
}
|
|
if (setInlinePropertyResult.inspect().IsSet()) {
|
|
pointToPutCaret = setInlinePropertyResult.unwrap();
|
|
}
|
|
}
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
// First check if there's an adjacent sibling we can put our node into.
|
|
nsCOMPtr<nsIContent> previousSibling = HTMLEditUtils::GetPreviousSibling(
|
|
aContent, {WalkTreeOption::IgnoreNonEditableNode});
|
|
nsCOMPtr<nsIContent> nextSibling = HTMLEditUtils::GetNextSibling(
|
|
aContent, {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (previousSibling && previousSibling->IsElement()) {
|
|
OwningNonNull<Element> previousElement(*previousSibling->AsElement());
|
|
Result<bool, nsresult> canMoveIntoPreviousSibling =
|
|
ElementIsGoodContainerForTheStyle(previousElement, &aProperty,
|
|
aAttribute, &aValue);
|
|
if (canMoveIntoPreviousSibling.isErr()) {
|
|
NS_WARNING("HTMLEditor::ElementIsGoodContainerForTheStyle() failed");
|
|
return canMoveIntoPreviousSibling.propagateErr();
|
|
}
|
|
if (canMoveIntoPreviousSibling.inspect()) {
|
|
Result<MoveNodeResult, nsresult> moveNodeResult =
|
|
MoveNodeToEndWithTransaction(aContent, *previousSibling);
|
|
if (MOZ_UNLIKELY(moveNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return moveNodeResult.propagateErr();
|
|
}
|
|
MoveNodeResult unwrappedMoveNodeResult = moveNodeResult.unwrap();
|
|
if (!nextSibling || !nextSibling->IsElement()) {
|
|
return unwrappedMoveNodeResult.UnwrapCaretPoint();
|
|
}
|
|
OwningNonNull<Element> nextElement(*nextSibling->AsElement());
|
|
Result<bool, nsresult> canMoveIntoNextSibling =
|
|
ElementIsGoodContainerForTheStyle(nextElement, &aProperty, aAttribute,
|
|
&aValue);
|
|
if (canMoveIntoNextSibling.isErr()) {
|
|
NS_WARNING("HTMLEditor::ElementIsGoodContainerForTheStyle() failed");
|
|
unwrappedMoveNodeResult.IgnoreCaretPointSuggestion();
|
|
return canMoveIntoNextSibling.propagateErr();
|
|
}
|
|
if (!canMoveIntoNextSibling.inspect()) {
|
|
return unwrappedMoveNodeResult.UnwrapCaretPoint();
|
|
}
|
|
unwrappedMoveNodeResult.IgnoreCaretPointSuggestion();
|
|
|
|
// JoinNodesWithTransaction (DoJoinNodes) tries to collapse selection to
|
|
// the joined point and we want to skip updating `Selection` here.
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
JoinNodesResult joinNodesResult =
|
|
JoinNodesWithTransaction(*previousSibling, *nextSibling);
|
|
if (joinNodesResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::JoinNodesWithTransaction() failed");
|
|
return Err(joinNodesResult.Rv());
|
|
}
|
|
// So, let's take it.
|
|
return joinNodesResult.AtJoinedPoint<EditorDOMPoint>();
|
|
}
|
|
}
|
|
|
|
if (nextSibling && nextSibling->IsElement()) {
|
|
OwningNonNull<Element> nextElement(*nextSibling->AsElement());
|
|
Result<bool, nsresult> canMoveIntoNextSibling =
|
|
ElementIsGoodContainerForTheStyle(nextElement, &aProperty, aAttribute,
|
|
&aValue);
|
|
if (canMoveIntoNextSibling.isErr()) {
|
|
NS_WARNING("HTMLEditor::ElementIsGoodContainerForTheStyle() failed");
|
|
return canMoveIntoNextSibling.propagateErr();
|
|
}
|
|
if (canMoveIntoNextSibling.inspect()) {
|
|
Result<MoveNodeResult, nsresult> moveNodeResult =
|
|
MoveNodeWithTransaction(aContent, EditorDOMPoint(nextElement, 0u));
|
|
if (MOZ_UNLIKELY(moveNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return moveNodeResult.propagateErr();
|
|
}
|
|
return moveNodeResult.unwrap().UnwrapCaretPoint();
|
|
}
|
|
}
|
|
|
|
// Don't need to do anything if property already set on node
|
|
if (CSSEditUtils::IsCSSEditableProperty(&aContent, &aProperty, aAttribute)) {
|
|
nsAutoString value(aValue);
|
|
Result<bool, nsresult> isComputedCSSEquivalentToHTMLInlineStyleOrError =
|
|
CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*this, aContent, &aProperty, aAttribute, value);
|
|
if (isComputedCSSEquivalentToHTMLInlineStyleOrError.isErr()) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet() failed");
|
|
return isComputedCSSEquivalentToHTMLInlineStyleOrError.propagateErr();
|
|
}
|
|
if (isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrap()) {
|
|
return EditorDOMPoint();
|
|
}
|
|
} else if (HTMLEditUtils::IsInlineStyleSetByElement(aContent, aProperty,
|
|
aAttribute, &aValue)) {
|
|
return EditorDOMPoint();
|
|
}
|
|
|
|
auto ShouldUseCSS = [&]() {
|
|
return (IsCSSEnabled() && CSSEditUtils::IsCSSEditableProperty(
|
|
&aContent, &aProperty, aAttribute)) ||
|
|
// bgcolor is always done using CSS
|
|
aAttribute == nsGkAtoms::bgcolor ||
|
|
// called for removing parent style, we should use CSS with
|
|
// `<span>` element.
|
|
aValue.EqualsLiteral("-moz-editor-invert-value");
|
|
};
|
|
|
|
if (ShouldUseCSS()) {
|
|
RefPtr<Element> spanElement;
|
|
EditorDOMPoint pointToPutCaret;
|
|
// We only add style="" to <span>s with no attributes (bug 746515). If we
|
|
// don't have one, we need to make one.
|
|
if (aContent.IsHTMLElement(nsGkAtoms::span) &&
|
|
!aContent.AsElement()->GetAttrCount()) {
|
|
spanElement = aContent.AsElement();
|
|
} else {
|
|
Result<CreateElementResult, nsresult> wrapInSpanElementResult =
|
|
InsertContainerWithTransaction(aContent, *nsGkAtoms::span);
|
|
if (MOZ_UNLIKELY(wrapInSpanElementResult.isErr())) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertContainerWithTransaction(nsGkAtoms::span) "
|
|
"failed");
|
|
return wrapInSpanElementResult.propagateErr();
|
|
}
|
|
CreateElementResult unwrappedWrapInSpanElementResult =
|
|
wrapInSpanElementResult.unwrap();
|
|
MOZ_ASSERT(unwrappedWrapInSpanElementResult.GetNewNode());
|
|
unwrappedWrapInSpanElementResult.MoveCaretPointTo(
|
|
pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion});
|
|
spanElement = unwrappedWrapInSpanElementResult.UnwrapNewNode();
|
|
}
|
|
|
|
// Add the CSS styles corresponding to the HTML style request
|
|
if (nsStyledElement* spanStyledElement =
|
|
nsStyledElement::FromNode(spanElement)) {
|
|
// MOZ_KnownLive(*spanStyledElement): It's spanElement whose type is
|
|
// RefPtr.
|
|
Result<int32_t, nsresult> result =
|
|
CSSEditUtils::SetCSSEquivalentToHTMLStyleWithTransaction(
|
|
*this, MOZ_KnownLive(*spanStyledElement), &aProperty, aAttribute,
|
|
&aValue);
|
|
if (result.isErr()) {
|
|
if (result.inspectErr() == NS_ERROR_EDITOR_DESTROYED) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::SetCSSEquivalentToHTMLStyleWithTransaction() "
|
|
"failed");
|
|
return Err(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING(
|
|
"CSSEditUtils::SetCSSEquivalentToHTMLStyleWithTransaction() "
|
|
"failed, but ignored");
|
|
}
|
|
}
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
// is it already the right kind of node, but with wrong attribute?
|
|
if (aContent.IsHTMLElement(&aProperty)) {
|
|
if (NS_WARN_IF(!aAttribute)) {
|
|
return Err(NS_ERROR_INVALID_ARG);
|
|
}
|
|
// Just set the attribute on it.
|
|
nsresult rv = SetAttributeWithTransaction(
|
|
MOZ_KnownLive(*aContent.AsElement()), *aAttribute, aValue);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return Err(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::SetAttributeWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
return EditorDOMPoint();
|
|
}
|
|
|
|
// ok, chuck it in its very own container
|
|
Result<CreateElementResult, nsresult> wrapWithNewElementToFormatResult =
|
|
InsertContainerWithTransaction(
|
|
aContent, aProperty, aAttribute ? *aAttribute : *nsGkAtoms::_empty,
|
|
aValue);
|
|
if (MOZ_UNLIKELY(wrapWithNewElementToFormatResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::InsertContainerWithTransaction() failed");
|
|
return wrapWithNewElementToFormatResult.propagateErr();
|
|
}
|
|
MOZ_ASSERT(wrapWithNewElementToFormatResult.inspect().GetNewNode());
|
|
return wrapWithNewElementToFormatResult.unwrap().UnwrapCaretPoint();
|
|
}
|
|
|
|
Result<EditorDOMPoint, nsresult> HTMLEditor::SetInlinePropertyOnNode(
|
|
nsIContent& aContent, nsAtom& aProperty, nsAtom* aAttribute,
|
|
const nsAString& aValue) {
|
|
if (NS_WARN_IF(!aContent.GetParentNode())) {
|
|
return Err(NS_ERROR_FAILURE);
|
|
}
|
|
OwningNonNull<nsINode> parent = *aContent.GetParentNode();
|
|
nsCOMPtr<nsIContent> previousSibling = aContent.GetPreviousSibling(),
|
|
nextSibling = aContent.GetNextSibling();
|
|
EditorDOMPoint pointToPutCaret;
|
|
if (aContent.IsElement()) {
|
|
Result<EditorDOMPoint, nsresult> removeStyleResult =
|
|
RemoveStyleInside(MOZ_KnownLive(*aContent.AsElement()), &aProperty,
|
|
aAttribute, SpecifiedStyle::Preserve);
|
|
if (MOZ_UNLIKELY(removeStyleResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::RemoveStyleInside() failed");
|
|
return removeStyleResult.propagateErr();
|
|
}
|
|
if (removeStyleResult.inspect().IsSet()) {
|
|
pointToPutCaret = removeStyleResult.unwrap();
|
|
}
|
|
}
|
|
|
|
if (aContent.GetParentNode()) {
|
|
// The node is still where it was
|
|
Result<EditorDOMPoint, nsresult> setStyleResult =
|
|
SetInlinePropertyOnNodeImpl(aContent, aProperty, aAttribute, aValue);
|
|
NS_WARNING_ASSERTION(setStyleResult.isOk(),
|
|
"HTMLEditor::SetInlinePropertyOnNodeImpl() failed");
|
|
return setStyleResult;
|
|
}
|
|
|
|
// It's vanished. Use the old siblings for reference to construct a
|
|
// list. But first, verify that the previous/next siblings are still
|
|
// where we expect them; otherwise we have to give up.
|
|
if (NS_WARN_IF(previousSibling &&
|
|
previousSibling->GetParentNode() != parent) ||
|
|
NS_WARN_IF(nextSibling && nextSibling->GetParentNode() != parent)) {
|
|
return Err(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
AutoTArray<OwningNonNull<nsIContent>, 24> nodesToSet;
|
|
for (nsIContent* content = previousSibling ? previousSibling->GetNextSibling()
|
|
: parent->GetFirstChild();
|
|
content && content != nextSibling; content = content->GetNextSibling()) {
|
|
if (EditorUtils::IsEditableContent(*content, EditorType::HTML)) {
|
|
nodesToSet.AppendElement(*content);
|
|
}
|
|
}
|
|
|
|
for (OwningNonNull<nsIContent>& content : nodesToSet) {
|
|
// MOZ_KnownLive because 'nodesToSet' is guaranteed to
|
|
// keep it alive.
|
|
Result<EditorDOMPoint, nsresult> setStyleResult =
|
|
SetInlinePropertyOnNodeImpl(MOZ_KnownLive(content), aProperty,
|
|
aAttribute, aValue);
|
|
if (MOZ_UNLIKELY(setStyleResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetInlinePropertyOnNodeImpl() failed");
|
|
return setStyleResult;
|
|
}
|
|
if (setStyleResult.inspect().IsSet()) {
|
|
pointToPutCaret = setStyleResult.unwrap();
|
|
}
|
|
}
|
|
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
SplitRangeOffResult HTMLEditor::SplitAncestorStyledInlineElementsAtRangeEdges(
|
|
const EditorDOMRange& aRange, nsAtom* aProperty, nsAtom* aAttribute) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (NS_WARN_IF(!aRange.IsPositioned())) {
|
|
return SplitRangeOffResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
EditorDOMRange range(aRange);
|
|
|
|
// split any matching style nodes above the start of range
|
|
SplitNodeResult resultAtStart = [&]() MOZ_CAN_RUN_SCRIPT {
|
|
AutoTrackDOMRange tracker(RangeUpdaterRef(), &range);
|
|
SplitNodeResult result = SplitAncestorStyledInlineElementsAt(
|
|
range.StartRef(), aProperty, aAttribute,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (result.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitAncestorStyledInlineElementsAt() failed");
|
|
return SplitNodeResult(result.unwrapErr());
|
|
}
|
|
tracker.FlushAndStopTracking();
|
|
if (result.Handled()) {
|
|
auto startOfRange = result.AtSplitPoint<EditorDOMPoint>();
|
|
if (!startOfRange.IsSet()) {
|
|
result.IgnoreCaretPointSuggestion();
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitAncestorStyledInlineElementsAt() didn't return "
|
|
"split point");
|
|
return SplitNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
range.SetStart(std::move(startOfRange));
|
|
}
|
|
return result;
|
|
}();
|
|
if (resultAtStart.isErr()) {
|
|
return SplitRangeOffResult(resultAtStart.unwrapErr());
|
|
}
|
|
|
|
// second verse, same as the first...
|
|
SplitNodeResult resultAtEnd = [&]() MOZ_CAN_RUN_SCRIPT {
|
|
AutoTrackDOMRange tracker(RangeUpdaterRef(), &range);
|
|
SplitNodeResult result = SplitAncestorStyledInlineElementsAt(
|
|
range.EndRef(), aProperty, aAttribute,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (result.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitAncestorStyledInlineElementsAt() failed");
|
|
return SplitNodeResult(result.unwrapErr());
|
|
}
|
|
tracker.FlushAndStopTracking();
|
|
if (result.Handled()) {
|
|
auto endOfRange = result.AtSplitPoint<EditorDOMPoint>();
|
|
if (!endOfRange.IsSet()) {
|
|
result.IgnoreCaretPointSuggestion();
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitAncestorStyledInlineElementsAt() didn't return "
|
|
"split point");
|
|
return SplitNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
range.SetEnd(std::move(endOfRange));
|
|
}
|
|
return result;
|
|
}();
|
|
if (resultAtEnd.isErr()) {
|
|
resultAtStart.IgnoreCaretPointSuggestion();
|
|
return SplitRangeOffResult(resultAtEnd.unwrapErr());
|
|
}
|
|
|
|
return SplitRangeOffResult(std::move(range), std::move(resultAtStart),
|
|
std::move(resultAtEnd));
|
|
}
|
|
|
|
SplitNodeResult HTMLEditor::SplitAncestorStyledInlineElementsAt(
|
|
const EditorDOMPoint& aPointToSplit, nsAtom* aProperty, nsAtom* aAttribute,
|
|
SplitAtEdges aSplitAtEdges) {
|
|
if (NS_WARN_IF(!aPointToSplit.IsInContentNode())) {
|
|
return SplitNodeResult(NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
// We assume that this method is called only when we're removing style(s).
|
|
// Even if we're in HTML mode and there is no presentation element in the
|
|
// block, we may need to overwrite the block's style with `<span>` element
|
|
// and CSS. For example, `<h1>` element has `font-weight: bold;` as its
|
|
// default style. If `Document.execCommand("bold")` is called for its
|
|
// text, we should make it unbold. Therefore, we shouldn't check
|
|
// IsCSSEnabled() in most cases. However, there is an exception.
|
|
// FontFaceStateCommand::SetState() calls RemoveInlinePropertyAsAction()
|
|
// with nsGkAtoms::tt before calling SetInlinePropertyAsAction() if we
|
|
// are handling a XUL command. Only in that case, we need to check
|
|
// IsCSSEnabled().
|
|
bool useCSS = aProperty != nsGkAtoms::tt || IsCSSEnabled();
|
|
|
|
AutoTArray<OwningNonNull<nsIContent>, 24> arrayOfParents;
|
|
for (nsIContent* content :
|
|
aPointToSplit.GetContainer()->InclusiveAncestorsOfType<nsIContent>()) {
|
|
if (HTMLEditUtils::IsBlockElement(*content) || !content->GetParent() ||
|
|
!EditorUtils::IsEditableContent(*content->GetParent(),
|
|
EditorType::HTML)) {
|
|
break;
|
|
}
|
|
arrayOfParents.AppendElement(*content);
|
|
}
|
|
|
|
// Split any matching style nodes above the point.
|
|
SplitNodeResult result =
|
|
SplitNodeResult::NotHandled(aPointToSplit, GetSplitNodeDirection());
|
|
MOZ_ASSERT(!result.Handled());
|
|
EditorDOMPoint pointToPutCaret;
|
|
for (OwningNonNull<nsIContent>& content : arrayOfParents) {
|
|
bool isSetByCSS = false;
|
|
if (useCSS &&
|
|
CSSEditUtils::IsCSSEditableProperty(content, aProperty, aAttribute)) {
|
|
// The HTML style defined by aProperty/aAttribute has a CSS equivalence
|
|
// in this implementation for the node; let's check if it carries those
|
|
// CSS styles
|
|
nsAutoString firstValue;
|
|
Result<bool, nsresult> isSpecifiedByCSSOrError =
|
|
CSSEditUtils::IsSpecifiedCSSEquivalentToHTMLInlineStyleSet(
|
|
*this, *content, aProperty, aAttribute, firstValue);
|
|
if (isSpecifiedByCSSOrError.isErr()) {
|
|
result.IgnoreCaretPointSuggestion();
|
|
NS_WARNING(
|
|
"CSSEditUtils::IsSpecifiedCSSEquivalentToHTMLInlineStyleSet() "
|
|
"failed");
|
|
return SplitNodeResult(isSpecifiedByCSSOrError.unwrapErr());
|
|
}
|
|
isSetByCSS = isSpecifiedByCSSOrError.unwrap();
|
|
}
|
|
if (!isSetByCSS) {
|
|
if (!content->IsElement()) {
|
|
continue;
|
|
}
|
|
// If aProperty is set, we need to split only elements which applies the
|
|
// given style.
|
|
if (aProperty) {
|
|
// If the content is an inline element represents aProperty or
|
|
// the content is a link element and aProperty is `href`, we should
|
|
// split the content.
|
|
if (!content->IsHTMLElement(aProperty) &&
|
|
!(aProperty == nsGkAtoms::href && HTMLEditUtils::IsLink(content))) {
|
|
continue;
|
|
}
|
|
}
|
|
// If aProperty is nullptr, we need to split any style.
|
|
else if (!EditorUtils::IsEditableContent(content, EditorType::HTML) ||
|
|
!HTMLEditUtils::IsRemovableInlineStyleElement(
|
|
*content->AsElement())) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Found a style node we need to split.
|
|
// XXX If first content is a text node and CSS is enabled, we call this
|
|
// with text node but in such case, this does nothing, but returns
|
|
// as handled with setting only previous or next node. If its parent
|
|
// is a block, we do nothing but return as handled.
|
|
AutoTrackDOMPoint trackPointToPutCaret(RangeUpdaterRef(), &pointToPutCaret);
|
|
SplitNodeResult splitNodeResult = SplitNodeDeepWithTransaction(
|
|
MOZ_KnownLive(content), result.AtSplitPoint<EditorDOMPoint>(),
|
|
aSplitAtEdges);
|
|
if (splitNodeResult.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeDeepWithTransaction() failed");
|
|
return splitNodeResult;
|
|
}
|
|
trackPointToPutCaret.FlushAndStopTracking();
|
|
splitNodeResult.MoveCaretPointTo(pointToPutCaret,
|
|
{SuggestCaret::OnlyIfHasSuggestion});
|
|
|
|
// If it's not handled, it means that `content` is not a splitable node
|
|
// like a void element even if it has some children, and the split point
|
|
// is middle of it.
|
|
if (!splitNodeResult.Handled()) {
|
|
continue;
|
|
}
|
|
// Mark the final result as handled forcibly.
|
|
result = splitNodeResult.ToHandledResult();
|
|
MOZ_ASSERT(result.Handled());
|
|
}
|
|
|
|
return pointToPutCaret.IsSet()
|
|
? SplitNodeResult(std::move(result), std::move(pointToPutCaret))
|
|
: std::move(result);
|
|
}
|
|
|
|
Result<EditorDOMPoint, nsresult> HTMLEditor::ClearStyleAt(
|
|
const EditorDOMPoint& aPoint, nsAtom* aProperty, nsAtom* aAttribute,
|
|
SpecifiedStyle aSpecifiedStyle) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (NS_WARN_IF(!aPoint.IsSet())) {
|
|
return Err(NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
// TODO: We should rewrite this to stop unnecessary element creation and
|
|
// deleting it later because it causes the original element may be
|
|
// removed from the DOM tree even if same element is still in the
|
|
// DOM tree from point of view of users.
|
|
|
|
// First, split inline elements at the point.
|
|
// E.g., if aProperty is nsGkAtoms::b and `<p><b><i>a[]bc</i></b></p>`,
|
|
// we want to make it as `<p><b><i>a</i></b><b><i>bc</i></b></p>`.
|
|
EditorDOMPoint pointToPutCaret(aPoint);
|
|
SplitNodeResult splitResult = SplitAncestorStyledInlineElementsAt(
|
|
aPoint, aProperty, aAttribute,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (splitResult.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitAncestorStyledInlineElementsAt() failed");
|
|
return Err(splitResult.unwrapErr());
|
|
}
|
|
splitResult.MoveCaretPointTo(pointToPutCaret, *this,
|
|
{SuggestCaret::OnlyIfHasSuggestion,
|
|
SuggestCaret::OnlyIfTransactionsAllowedToDoIt});
|
|
|
|
// If there is no styled inline elements of aProperty/aAttribute, we just
|
|
// return the given point.
|
|
// E.g., `<p><i>a[]bc</i></p>` for nsGkAtoms::b.
|
|
if (!splitResult.Handled()) {
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
// If it did split nodes, but topmost ancestor inline element is split
|
|
// at start of it, we don't need the empty inline element. Let's remove
|
|
// it now. Then, we'll get the following DOM tree if there is no "a" in the
|
|
// above case:
|
|
// <p><b><i>bc</i></b></p>
|
|
// ^^
|
|
if (splitResult.GetPreviousContent() &&
|
|
HTMLEditUtils::IsEmptyNode(
|
|
*splitResult.GetPreviousContent(),
|
|
{EmptyCheckOption::TreatSingleBRElementAsVisible,
|
|
EmptyCheckOption::TreatListItemAsVisible,
|
|
EmptyCheckOption::TreatTableCellAsVisible})) {
|
|
AutoTrackDOMPoint trackPointToPutCaret(RangeUpdaterRef(), &pointToPutCaret);
|
|
// Delete previous node if it's empty.
|
|
// MOZ_KnownLive(splitResult.GetPreviousContent()):
|
|
// It's grabbed by splitResult.
|
|
nsresult rv = DeleteNodeWithTransaction(
|
|
MOZ_KnownLive(*splitResult.GetPreviousContent()));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::DeleteNodeWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
}
|
|
|
|
// If we reached block from end of a text node, we can do nothing here.
|
|
// E.g., `<p style="font-weight: bold;">a[]bc</p>` for nsGkAtoms::b and
|
|
// we're in CSS mode.
|
|
// XXX Chrome resets block style and creates `<span>` elements for each
|
|
// line in this case.
|
|
if (!splitResult.GetNextContent()) {
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
// Otherwise, the next node is topmost ancestor inline element which has
|
|
// the style. We want to put caret between the split nodes, but we need
|
|
// to keep other styles. Therefore, next, we need to split at start of
|
|
// the next node. The first example should become
|
|
// `<p><b><i>a</i></b><b><i></i></b><b><i>bc</i></b></p>`.
|
|
// ^^^^^^^^^^^^^^
|
|
nsIContent* firstLeafChildOfNextNode = HTMLEditUtils::GetFirstLeafContent(
|
|
*splitResult.GetNextContent(), {LeafNodeType::OnlyLeafNode});
|
|
EditorDOMPoint atStartOfNextNode(firstLeafChildOfNextNode
|
|
? firstLeafChildOfNextNode
|
|
: splitResult.GetNextContent(),
|
|
0);
|
|
RefPtr<HTMLBRElement> brElement;
|
|
// But don't try to split non-containers like `<br>`, `<hr>` and `<img>`
|
|
// element.
|
|
if (!atStartOfNextNode.IsInContentNode() ||
|
|
!HTMLEditUtils::IsContainerNode(
|
|
*atStartOfNextNode.ContainerAs<nsIContent>())) {
|
|
// If it's a `<br>` element, let's move it into new node later.
|
|
brElement = HTMLBRElement::FromNode(atStartOfNextNode.GetContainer());
|
|
if (!atStartOfNextNode.GetContainerParentAs<nsIContent>()) {
|
|
NS_WARNING("atStartOfNextNode was in an orphan node");
|
|
return Err(NS_ERROR_FAILURE);
|
|
}
|
|
atStartOfNextNode.Set(atStartOfNextNode.GetContainerParent(), 0);
|
|
}
|
|
SplitNodeResult splitResultAtStartOfNextNode =
|
|
SplitAncestorStyledInlineElementsAt(
|
|
atStartOfNextNode, aProperty, aAttribute,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (splitResultAtStartOfNextNode.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitAncestorStyledInlineElementsAt() failed");
|
|
return Err(splitResultAtStartOfNextNode.unwrapErr());
|
|
}
|
|
splitResultAtStartOfNextNode.MoveCaretPointTo(
|
|
pointToPutCaret, *this,
|
|
{SuggestCaret::OnlyIfHasSuggestion,
|
|
SuggestCaret::OnlyIfTransactionsAllowedToDoIt});
|
|
|
|
if (splitResultAtStartOfNextNode.Handled() &&
|
|
splitResultAtStartOfNextNode.GetNextContent()) {
|
|
// If the right inline elements are empty, we should remove them. E.g.,
|
|
// if the split point is at end of a text node (or end of an inline
|
|
// element), e.g., <div><b><i>abc[]</i></b></div>, then now, it's been
|
|
// changed to:
|
|
// <div><b><i>abc</i></b><b><i>[]</i></b><b><i></i></b></div>
|
|
// ^^^^^^^^^^^^^^
|
|
// We will change it to:
|
|
// <div><b><i>abc</i></b><b><i>[]</i></b></div>
|
|
// ^^
|
|
// And if it has only padding <br> element, we should move it into the
|
|
// previous <i> which will have new content.
|
|
bool seenBR = false;
|
|
if (HTMLEditUtils::IsEmptyNode(
|
|
*splitResultAtStartOfNextNode.GetNextContent(),
|
|
{EmptyCheckOption::TreatListItemAsVisible,
|
|
EmptyCheckOption::TreatTableCellAsVisible},
|
|
&seenBR)) {
|
|
// Delete next node if it's empty.
|
|
// MOZ_KnownLive(splitResultAtStartOfNextNode.GetNextContent()):
|
|
// It's grabbed by splitResultAtStartOfNextNode.
|
|
nsresult rv = DeleteNodeWithTransaction(
|
|
MOZ_KnownLive(*splitResultAtStartOfNextNode.GetNextContent()));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::DeleteNodeWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
if (seenBR && !brElement) {
|
|
brElement = HTMLEditUtils::GetFirstBRElement(
|
|
*splitResultAtStartOfNextNode.GetNextContent()->AsElement());
|
|
}
|
|
}
|
|
}
|
|
|
|
// If there is no content, we should return here.
|
|
// XXX Is this possible case without mutation event listener?
|
|
if (NS_WARN_IF(!splitResultAtStartOfNextNode.Handled()) ||
|
|
!splitResultAtStartOfNextNode.GetPreviousContent()) {
|
|
// XXX This is really odd, but we retrun this value...
|
|
const EditorRawDOMPoint& splitPoint =
|
|
splitResult.AtSplitPoint<EditorRawDOMPoint>();
|
|
const EditorRawDOMPoint& splitPointAtStartOfNextNode =
|
|
splitResultAtStartOfNextNode.AtSplitPoint<EditorRawDOMPoint>();
|
|
return EditorDOMPoint(splitPoint.GetContainer(),
|
|
splitPointAtStartOfNextNode.Offset());
|
|
}
|
|
|
|
// Now, we want to put `<br>` element into the empty split node if
|
|
// it was in next node of the first split.
|
|
// E.g., `<p><b><i>a</i></b><b><i><br></i></b><b><i>bc</i></b></p>`
|
|
nsIContent* firstLeafChildOfPreviousNode = HTMLEditUtils::GetFirstLeafContent(
|
|
*splitResultAtStartOfNextNode.GetPreviousContent(),
|
|
{LeafNodeType::OnlyLeafNode});
|
|
pointToPutCaret.Set(firstLeafChildOfPreviousNode
|
|
? firstLeafChildOfPreviousNode
|
|
: splitResultAtStartOfNextNode.GetPreviousContent(),
|
|
0);
|
|
|
|
// If the right node starts with a `<br>`, suck it out of right node and into
|
|
// the left node left node. This is so we you don't revert back to the
|
|
// previous style if you happen to click at the end of a line.
|
|
if (brElement) {
|
|
{
|
|
Result<MoveNodeResult, nsresult> moveBRElementResult =
|
|
MoveNodeWithTransaction(*brElement, pointToPutCaret);
|
|
if (MOZ_UNLIKELY(moveBRElementResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return moveBRElementResult.propagateErr();
|
|
}
|
|
MoveNodeResult unwrappedMoveBRElementResult =
|
|
moveBRElementResult.unwrap();
|
|
unwrappedMoveBRElementResult.MoveCaretPointTo(
|
|
pointToPutCaret, *this,
|
|
{SuggestCaret::OnlyIfHasSuggestion,
|
|
SuggestCaret::OnlyIfTransactionsAllowedToDoIt});
|
|
}
|
|
|
|
if (splitResultAtStartOfNextNode.GetNextContent() &&
|
|
splitResultAtStartOfNextNode.GetNextContent()->IsInComposedDoc()) {
|
|
// If we split inline elements at immediately before <br> element which is
|
|
// the last visible content in the right element, we don't need the right
|
|
// element anymore. Otherwise, we'll create the following DOM tree:
|
|
// - <b>abc</b>{}<br><b></b>
|
|
// ^^^^^^^
|
|
// - <b><i>abc</i></b><i><br></i><b></b>
|
|
// ^^^^^^^
|
|
if (HTMLEditUtils::IsEmptyNode(
|
|
*splitResultAtStartOfNextNode.GetNextContent(),
|
|
{EmptyCheckOption::TreatSingleBRElementAsVisible,
|
|
EmptyCheckOption::TreatListItemAsVisible,
|
|
EmptyCheckOption::TreatTableCellAsVisible})) {
|
|
// MOZ_KnownLive because the result is grabbed by
|
|
// splitResultAtStartOfNextNode.
|
|
nsresult rv = DeleteNodeWithTransaction(
|
|
MOZ_KnownLive(*splitResultAtStartOfNextNode.GetNextContent()));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::DeleteNodeWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
}
|
|
// If the next content has only one <br> element, there may be empty
|
|
// inline elements around it. We don't need them anymore because user
|
|
// cannot put caret into them. E.g., <b><i>abc[]<br></i><br></b> has
|
|
// been changed to <b><i>abc</i></b><i>{}<br></i><b><i></i><br></b> now.
|
|
// ^^^^^^^^^^^^^^^^^^
|
|
// We don't need the empty <i>.
|
|
else if (HTMLEditUtils::IsEmptyNode(
|
|
*splitResultAtStartOfNextNode.GetNextContent(),
|
|
{EmptyCheckOption::TreatListItemAsVisible,
|
|
EmptyCheckOption::TreatTableCellAsVisible})) {
|
|
AutoTArray<OwningNonNull<nsIContent>, 4> emptyInlineContainerElements;
|
|
HTMLEditUtils::CollectEmptyInlineContainerDescendants(
|
|
*splitResultAtStartOfNextNode.GetNextContent()->AsElement(),
|
|
emptyInlineContainerElements,
|
|
{EmptyCheckOption::TreatSingleBRElementAsVisible,
|
|
EmptyCheckOption::TreatListItemAsVisible,
|
|
EmptyCheckOption::TreatTableCellAsVisible});
|
|
for (const OwningNonNull<nsIContent>& emptyInlineContainerElement :
|
|
emptyInlineContainerElements) {
|
|
// MOZ_KnownLive(emptyInlineContainerElement) due to bug 1622253.
|
|
nsresult rv = DeleteNodeWithTransaction(
|
|
MOZ_KnownLive(emptyInlineContainerElement));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::DeleteNodeWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Update the child.
|
|
pointToPutCaret.Set(pointToPutCaret.GetContainer(), 0);
|
|
}
|
|
// Finally, remove the specified style in the previous node at the
|
|
// second split and tells good insertion point to the caller. I.e., we
|
|
// want to make the first example as:
|
|
// `<p><b><i>a</i></b><i>[]</i><b><i>bc</i></b></p>`
|
|
// ^^^^^^^^^
|
|
if (Element* previousElementOfSplitPoint = Element::FromNode(
|
|
splitResultAtStartOfNextNode.GetPreviousContent())) {
|
|
// Track the point at the new hierarchy. This is so we can know where
|
|
// to put the selection after we call RemoveStyleInside().
|
|
// RemoveStyleInside() could remove any and all of those nodes, so I
|
|
// have to use the range tracking system to find the right spot to put
|
|
// selection.
|
|
AutoTrackDOMPoint tracker(RangeUpdaterRef(), &pointToPutCaret);
|
|
// MOZ_KnownLive(previousElementOfSplitPoint):
|
|
// It's grabbed by splitResultAtStartOfNextNode.
|
|
Result<EditorDOMPoint, nsresult> removeStyleResult =
|
|
RemoveStyleInside(MOZ_KnownLive(*previousElementOfSplitPoint),
|
|
aProperty, aAttribute, aSpecifiedStyle);
|
|
if (MOZ_UNLIKELY(removeStyleResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::RemoveStyleInside() failed");
|
|
return removeStyleResult;
|
|
}
|
|
// We've already computed a suggested caret position at start of first leaf
|
|
// which is stored in pointToPutCaret, so we don't need to update it here.
|
|
}
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
Result<EditorDOMPoint, nsresult> HTMLEditor::RemoveStyleInside(
|
|
Element& aElement, nsAtom* aProperty, nsAtom* aAttribute,
|
|
SpecifiedStyle aSpecifiedStyle) {
|
|
// First, handle all descendants.
|
|
AutoTArray<OwningNonNull<nsIContent>, 32> arrayOfChildContents;
|
|
HTMLEditor::GetChildNodesOf(aElement, arrayOfChildContents);
|
|
EditorDOMPoint pointToPutCaret;
|
|
for (const OwningNonNull<nsIContent>& child : arrayOfChildContents) {
|
|
if (!child->IsElement()) {
|
|
continue;
|
|
}
|
|
Result<EditorDOMPoint, nsresult> removeStyleResult =
|
|
RemoveStyleInside(MOZ_KnownLive(*child->AsElement()), aProperty,
|
|
aAttribute, aSpecifiedStyle);
|
|
if (MOZ_UNLIKELY(removeStyleResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::RemoveStyleInside() failed");
|
|
return removeStyleResult;
|
|
}
|
|
if (removeStyleResult.inspect().IsSet()) {
|
|
pointToPutCaret = removeStyleResult.unwrap();
|
|
}
|
|
}
|
|
|
|
// Next, remove the element or its attribute.
|
|
auto ShouldRemoveHTMLStyle = [&]() {
|
|
if (aProperty) {
|
|
return
|
|
// If the element is a presentation element of aProperty
|
|
aElement.NodeInfo()->NameAtom() == aProperty ||
|
|
// or an `<a>` element with `href` attribute
|
|
(aProperty == nsGkAtoms::href && HTMLEditUtils::IsLink(&aElement)) ||
|
|
// or an `<a>` element with `name` attribute
|
|
(aProperty == nsGkAtoms::name &&
|
|
HTMLEditUtils::IsNamedAnchor(&aElement));
|
|
}
|
|
// XXX Why do we check if aElement is editable only when aProperty is
|
|
// nullptr?
|
|
if (EditorUtils::IsEditableContent(aElement, EditorType::HTML)) {
|
|
// or removing all styles and the element is a presentation element.
|
|
return HTMLEditUtils::IsRemovableInlineStyleElement(aElement);
|
|
}
|
|
return false;
|
|
};
|
|
|
|
if (ShouldRemoveHTMLStyle()) {
|
|
// If aAttribute is nullptr, we want to remove any matching inline styles
|
|
// entirely.
|
|
if (!aAttribute) {
|
|
// If some style rules are specified to aElement, we need to keep them
|
|
// as far as possible.
|
|
// XXX Why don't we clone `id` attribute?
|
|
if (aProperty && aSpecifiedStyle != SpecifiedStyle::Discard &&
|
|
(aElement.HasAttr(kNameSpaceID_None, nsGkAtoms::style) ||
|
|
aElement.HasAttr(kNameSpaceID_None, nsGkAtoms::_class))) {
|
|
// Move `style` attribute and `class` element to span element before
|
|
// removing aElement from the tree.
|
|
Result<CreateElementResult, nsresult> wrapInSpanElementResult =
|
|
InsertContainerWithTransaction(aElement, *nsGkAtoms::span);
|
|
if (wrapInSpanElementResult.isErr()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertContainerWithTransaction(nsGkAtoms::span) "
|
|
"failed");
|
|
return wrapInSpanElementResult.propagateErr();
|
|
}
|
|
CreateElementResult unwrappedWrapInSpanElementResult =
|
|
wrapInSpanElementResult.unwrap();
|
|
MOZ_ASSERT(unwrappedWrapInSpanElementResult.GetNewNode());
|
|
unwrappedWrapInSpanElementResult.MoveCaretPointTo(
|
|
pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion});
|
|
const RefPtr<Element> spanElement =
|
|
unwrappedWrapInSpanElementResult.UnwrapNewNode();
|
|
nsresult rv = CloneAttributeWithTransaction(*nsGkAtoms::style,
|
|
*spanElement, aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return Err(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::CloneAttributeWithTransaction(nsGkAtoms::style) "
|
|
"failed");
|
|
return Err(rv);
|
|
}
|
|
rv = CloneAttributeWithTransaction(*nsGkAtoms::_class, *spanElement,
|
|
aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return Err(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::CloneAttributeWithTransaction(nsGkAtoms::_class) "
|
|
"failed");
|
|
return Err(rv);
|
|
}
|
|
}
|
|
Result<EditorDOMPoint, nsresult> unwrapElementResult =
|
|
RemoveContainerWithTransaction(aElement);
|
|
if (MOZ_UNLIKELY(unwrapElementResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return unwrapElementResult.propagateErr();
|
|
}
|
|
if (AllowsTransactionsToChangeSelection() &&
|
|
unwrapElementResult.inspect().IsSet()) {
|
|
pointToPutCaret = unwrapElementResult.unwrap();
|
|
}
|
|
}
|
|
// If aAttribute is specified, we want to remove only the attribute
|
|
// unless it's the last attribute of aElement.
|
|
else if (aElement.HasAttr(kNameSpaceID_None, aAttribute)) {
|
|
if (IsOnlyAttribute(&aElement, aAttribute)) {
|
|
Result<EditorDOMPoint, nsresult> unwrapElementResult =
|
|
RemoveContainerWithTransaction(aElement);
|
|
if (MOZ_UNLIKELY(unwrapElementResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return unwrapElementResult.propagateErr();
|
|
}
|
|
if (unwrapElementResult.inspect().IsSet()) {
|
|
pointToPutCaret = unwrapElementResult.unwrap();
|
|
}
|
|
} else {
|
|
nsresult rv = RemoveAttributeWithTransaction(aElement, *aAttribute);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return Err(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::RemoveAttributeWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Then, remove CSS style if specified.
|
|
// XXX aElement may have already been removed from the DOM tree. Why
|
|
// do we keep handling aElement here??
|
|
if (CSSEditUtils::IsCSSEditableProperty(&aElement, aProperty, aAttribute)) {
|
|
Result<bool, nsresult> elementHasSpecifiedCSSEquivalentStylesOrError =
|
|
CSSEditUtils::HaveSpecifiedCSSEquivalentStyles(*this, aElement,
|
|
aProperty, aAttribute);
|
|
if (elementHasSpecifiedCSSEquivalentStylesOrError.isErr()) {
|
|
NS_WARNING("CSSEditUtils::HaveSpecifiedCSSEquivalentStyles() failed");
|
|
return elementHasSpecifiedCSSEquivalentStylesOrError.propagateErr();
|
|
}
|
|
if (elementHasSpecifiedCSSEquivalentStylesOrError.unwrap()) {
|
|
if (nsStyledElement* styledElement =
|
|
nsStyledElement::FromNode(&aElement)) {
|
|
// If aElement has CSS declaration of the given style, remove it.
|
|
// MOZ_KnownLive(*styledElement): It's aElement and its lifetime must be
|
|
// guaranteed by the caller because of MOZ_CAN_RUN_SCRIPT method.
|
|
nsresult rv =
|
|
CSSEditUtils::RemoveCSSEquivalentToHTMLStyleWithTransaction(
|
|
*this, MOZ_KnownLive(*styledElement), aProperty, aAttribute,
|
|
nullptr);
|
|
if (rv == NS_ERROR_EDITOR_DESTROYED) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::RemoveCSSEquivalentToHTMLStyleWithTransaction() "
|
|
"destroyed the editor");
|
|
return Err(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"CSSEditUtils::RemoveCSSEquivalentToHTMLStyleWithTransaction() "
|
|
"failed, but ignored");
|
|
}
|
|
// Additionally, remove aElement itself if it's a `<span>` or `<font>`
|
|
// and it does not have non-empty `style`, `id` nor `class` attribute.
|
|
if (aElement.IsAnyOfHTMLElements(nsGkAtoms::span, nsGkAtoms::font) &&
|
|
!HTMLEditor::HasStyleOrIdOrClassAttribute(aElement)) {
|
|
Result<EditorDOMPoint, nsresult> unwrapSpanOrFontElementResult =
|
|
RemoveContainerWithTransaction(aElement);
|
|
if (MOZ_UNLIKELY(unwrapSpanOrFontElementResult.isErr() &&
|
|
unwrapSpanOrFontElementResult.inspectErr() ==
|
|
NS_ERROR_EDITOR_DESTROYED)) {
|
|
NS_WARNING("HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return Err(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
unwrapSpanOrFontElementResult.isOk(),
|
|
"HTMLEditor::RemoveContainerWithTransaction() failed, but ignored");
|
|
if (MOZ_LIKELY(unwrapSpanOrFontElementResult.isOk()) &&
|
|
unwrapSpanOrFontElementResult.inspect().IsSet()) {
|
|
pointToPutCaret = unwrapSpanOrFontElementResult.unwrap();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aProperty != nsGkAtoms::font || aAttribute != nsGkAtoms::size ||
|
|
!aElement.IsAnyOfHTMLElements(nsGkAtoms::big, nsGkAtoms::small)) {
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
// Finally, remove aElement if it's a `<big>` or `<small>` element and
|
|
// we're removing `<font size>`.
|
|
Result<EditorDOMPoint, nsresult> unwrapBigOrSmallElementResult =
|
|
RemoveContainerWithTransaction(aElement);
|
|
NS_WARNING_ASSERTION(unwrapBigOrSmallElementResult.isOk(),
|
|
"HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return unwrapBigOrSmallElementResult;
|
|
}
|
|
|
|
bool HTMLEditor::IsOnlyAttribute(const Element* aElement, nsAtom* aAttribute) {
|
|
MOZ_ASSERT(aElement);
|
|
|
|
uint32_t attrCount = aElement->GetAttrCount();
|
|
for (uint32_t i = 0; i < attrCount; ++i) {
|
|
const nsAttrName* name = aElement->GetAttrNameAt(i);
|
|
if (!name->NamespaceEquals(kNameSpaceID_None)) {
|
|
return false;
|
|
}
|
|
|
|
// if it's the attribute we know about, or a special _moz attribute,
|
|
// keep looking
|
|
if (name->LocalName() != aAttribute) {
|
|
nsAutoString attrString;
|
|
name->LocalName()->ToString(attrString);
|
|
if (!StringBeginsWith(attrString, u"_moz"_ns)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
// if we made it through all of them without finding a real attribute
|
|
// other than aAttribute, then return true
|
|
return true;
|
|
}
|
|
|
|
nsresult HTMLEditor::PromoteRangeIfStartsOrEndsInNamedAnchor(nsRange& aRange) {
|
|
// We assume that <a> is not nested.
|
|
// XXX Shouldn't ignore the editing host.
|
|
if (NS_WARN_IF(!aRange.GetStartContainer()) ||
|
|
NS_WARN_IF(!aRange.GetEndContainer())) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
EditorRawDOMPoint newRangeStart(aRange.StartRef());
|
|
for (Element* element :
|
|
aRange.GetStartContainer()->InclusiveAncestorsOfType<Element>()) {
|
|
if (element->IsHTMLElement(nsGkAtoms::body)) {
|
|
break;
|
|
}
|
|
if (!HTMLEditUtils::IsNamedAnchor(element)) {
|
|
continue;
|
|
}
|
|
newRangeStart.Set(element);
|
|
break;
|
|
}
|
|
|
|
if (!newRangeStart.IsInContentNode()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::PromoteRangeIfStartsOrEndsInNamedAnchor() reached root "
|
|
"element from start container");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorRawDOMPoint newRangeEnd(aRange.EndRef());
|
|
for (Element* element :
|
|
aRange.GetEndContainer()->InclusiveAncestorsOfType<Element>()) {
|
|
if (element->IsHTMLElement(nsGkAtoms::body)) {
|
|
break;
|
|
}
|
|
if (!HTMLEditUtils::IsNamedAnchor(element)) {
|
|
continue;
|
|
}
|
|
newRangeEnd.SetAfter(element);
|
|
break;
|
|
}
|
|
|
|
if (!newRangeEnd.IsInContentNode()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::PromoteRangeIfStartsOrEndsInNamedAnchor() reached root "
|
|
"element from end container");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (newRangeStart == aRange.StartRef() && newRangeEnd == aRange.EndRef()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv = aRange.SetStartAndEnd(newRangeStart.ToRawRangeBoundary(),
|
|
newRangeEnd.ToRawRangeBoundary());
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "nsRange::SetStartAndEnd() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::PromoteInlineRange(nsRange& aRange) {
|
|
if (NS_WARN_IF(!aRange.GetStartContainer()) ||
|
|
NS_WARN_IF(!aRange.GetEndContainer())) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
EditorRawDOMPoint newRangeStart(aRange.StartRef());
|
|
for (nsIContent* content :
|
|
aRange.GetStartContainer()->InclusiveAncestorsOfType<nsIContent>()) {
|
|
MOZ_ASSERT(newRangeStart.GetContainer() == content);
|
|
if (content->IsHTMLElement(nsGkAtoms::body) ||
|
|
!EditorUtils::IsEditableContent(*content, EditorType::HTML) ||
|
|
!IsStartOfContainerOrBeforeFirstEditableChild(newRangeStart)) {
|
|
break;
|
|
}
|
|
newRangeStart.Set(content);
|
|
}
|
|
if (!newRangeStart.IsInContentNode()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::PromoteInlineRange() reached root element from start "
|
|
"container");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorRawDOMPoint newRangeEnd(aRange.EndRef());
|
|
for (nsIContent* content :
|
|
aRange.GetEndContainer()->InclusiveAncestorsOfType<nsIContent>()) {
|
|
MOZ_ASSERT(newRangeEnd.GetContainer() == content);
|
|
if (content->IsHTMLElement(nsGkAtoms::body) ||
|
|
!EditorUtils::IsEditableContent(*content, EditorType::HTML) ||
|
|
!IsEndOfContainerOrEqualsOrAfterLastEditableChild(newRangeEnd)) {
|
|
break;
|
|
}
|
|
newRangeEnd.SetAfter(content);
|
|
}
|
|
if (!newRangeEnd.IsInContentNode()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::PromoteInlineRange() reached root element from end "
|
|
"container");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (newRangeStart == aRange.StartRef() && newRangeEnd == aRange.EndRef()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv = aRange.SetStartAndEnd(newRangeStart.ToRawRangeBoundary(),
|
|
newRangeEnd.ToRawRangeBoundary());
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "nsRange::SetStartAndEnd() failed");
|
|
return rv;
|
|
}
|
|
|
|
bool HTMLEditor::IsStartOfContainerOrBeforeFirstEditableChild(
|
|
const EditorRawDOMPoint& aPoint) const {
|
|
MOZ_ASSERT(aPoint.IsSet());
|
|
|
|
if (aPoint.IsStartOfContainer()) {
|
|
return true;
|
|
}
|
|
|
|
if (aPoint.IsInTextNode()) {
|
|
return false;
|
|
}
|
|
|
|
nsIContent* firstEditableChild = HTMLEditUtils::GetFirstChild(
|
|
*aPoint.GetContainer(), {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (!firstEditableChild) {
|
|
return true;
|
|
}
|
|
return EditorRawDOMPoint(firstEditableChild).Offset() >= aPoint.Offset();
|
|
}
|
|
|
|
bool HTMLEditor::IsEndOfContainerOrEqualsOrAfterLastEditableChild(
|
|
const EditorRawDOMPoint& aPoint) const {
|
|
MOZ_ASSERT(aPoint.IsSet());
|
|
|
|
if (aPoint.IsEndOfContainer()) {
|
|
return true;
|
|
}
|
|
|
|
if (aPoint.IsInTextNode()) {
|
|
return false;
|
|
}
|
|
|
|
nsIContent* lastEditableChild = HTMLEditUtils::GetLastChild(
|
|
*aPoint.GetContainer(), {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (!lastEditableChild) {
|
|
return true;
|
|
}
|
|
return EditorRawDOMPoint(lastEditableChild).Offset() < aPoint.Offset();
|
|
}
|
|
|
|
nsresult HTMLEditor::GetInlinePropertyBase(nsStaticAtom& aHTMLProperty,
|
|
nsAtom* aAttribute,
|
|
const nsAString* aValue,
|
|
bool* aFirst, bool* aAny, bool* aAll,
|
|
nsAString* outValue) const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
*aAny = false;
|
|
*aAll = true;
|
|
*aFirst = false;
|
|
bool first = true;
|
|
|
|
bool isCollapsed = SelectionRef().IsCollapsed();
|
|
RefPtr<nsRange> range = SelectionRef().GetRangeAt(0);
|
|
// XXX: Should be a while loop, to get each separate range
|
|
// XXX: ERROR_HANDLING can currentItem be null?
|
|
if (range) {
|
|
// For each range, set a flag
|
|
bool firstNodeInRange = true;
|
|
|
|
if (isCollapsed) {
|
|
nsCOMPtr<nsINode> collapsedNode = range->GetStartContainer();
|
|
if (NS_WARN_IF(!collapsedNode)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsString tOutString;
|
|
const PendingStyleState styleState = [&]() {
|
|
if (aAttribute) {
|
|
auto state = mPendingStylesToApplyToNewContent->GetStyleState(
|
|
aHTMLProperty, aAttribute, &tOutString);
|
|
if (outValue) {
|
|
outValue->Assign(tOutString);
|
|
}
|
|
return state;
|
|
}
|
|
return mPendingStylesToApplyToNewContent->GetStyleState(aHTMLProperty);
|
|
}();
|
|
if (styleState != PendingStyleState::NotUpdated) {
|
|
*aFirst = *aAny = *aAll =
|
|
(styleState == PendingStyleState::BeingPreserved);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (collapsedNode->IsContent() &&
|
|
CSSEditUtils::IsCSSEditableProperty(collapsedNode, &aHTMLProperty,
|
|
aAttribute)) {
|
|
if (aValue) {
|
|
tOutString.Assign(*aValue);
|
|
}
|
|
Result<bool, nsresult> isComputedCSSEquivalentToHTMLInlineStyleOrError =
|
|
CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*this, MOZ_KnownLive(*collapsedNode->AsContent()),
|
|
&aHTMLProperty, aAttribute, tOutString);
|
|
if (isComputedCSSEquivalentToHTMLInlineStyleOrError.isErr()) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet() "
|
|
"failed");
|
|
return isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrapErr();
|
|
}
|
|
*aFirst = *aAny = *aAll =
|
|
isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrap();
|
|
if (outValue) {
|
|
outValue->Assign(tOutString);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
*aFirst = *aAny = *aAll = collapsedNode->IsContent() &&
|
|
HTMLEditUtils::IsInlineStyleSetByElement(
|
|
*collapsedNode->AsContent(), aHTMLProperty,
|
|
aAttribute, aValue, outValue);
|
|
return NS_OK;
|
|
}
|
|
|
|
// Non-collapsed selection
|
|
|
|
nsAutoString firstValue, theValue;
|
|
|
|
nsCOMPtr<nsINode> endNode = range->GetEndContainer();
|
|
uint32_t endOffset = range->EndOffset();
|
|
|
|
PostContentIterator postOrderIter;
|
|
DebugOnly<nsresult> rvIgnored = postOrderIter.Init(range);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"Failed to initialize post-order content iterator");
|
|
for (; !postOrderIter.IsDone(); postOrderIter.Next()) {
|
|
if (!postOrderIter.GetCurrentNode()->IsContent()) {
|
|
continue;
|
|
}
|
|
nsCOMPtr<nsIContent> content =
|
|
postOrderIter.GetCurrentNode()->AsContent();
|
|
|
|
if (content->IsHTMLElement(nsGkAtoms::body)) {
|
|
break;
|
|
}
|
|
|
|
// just ignore any non-editable nodes
|
|
if (content->IsText() &&
|
|
(!EditorUtils::IsEditableContent(*content, EditorType::HTML) ||
|
|
!HTMLEditUtils::IsVisibleTextNode(*content->AsText()))) {
|
|
continue;
|
|
}
|
|
if (content->GetAsText()) {
|
|
if (!isCollapsed && first && firstNodeInRange) {
|
|
firstNodeInRange = false;
|
|
if (range->StartOffset() == content->Length()) {
|
|
continue;
|
|
}
|
|
} else if (content == endNode && !endOffset) {
|
|
continue;
|
|
}
|
|
} else if (content->IsElement()) {
|
|
// handle non-text leaf nodes here
|
|
continue;
|
|
}
|
|
|
|
bool isSet = false;
|
|
bool useTextDecoration =
|
|
&aHTMLProperty == nsGkAtoms::u || &aHTMLProperty == nsGkAtoms::strike;
|
|
if (first) {
|
|
if (CSSEditUtils::IsCSSEditableProperty(content, &aHTMLProperty,
|
|
aAttribute)) {
|
|
// The HTML styles defined by aHTMLProperty/aAttribute have a CSS
|
|
// equivalence in this implementation for node; let's check if it
|
|
// carries those CSS styles
|
|
if (aValue) {
|
|
firstValue.Assign(*aValue);
|
|
}
|
|
Result<bool, nsresult>
|
|
isComputedCSSEquivalentToHTMLInlineStyleOrError =
|
|
CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*this, *content, &aHTMLProperty, aAttribute, firstValue);
|
|
if (isComputedCSSEquivalentToHTMLInlineStyleOrError.isErr()) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet() "
|
|
"failed");
|
|
return isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrapErr();
|
|
}
|
|
isSet = isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrap();
|
|
} else {
|
|
isSet = HTMLEditUtils::IsInlineStyleSetByElement(
|
|
*content, aHTMLProperty, aAttribute, aValue, &firstValue);
|
|
}
|
|
*aFirst = isSet;
|
|
first = false;
|
|
if (outValue) {
|
|
*outValue = firstValue;
|
|
}
|
|
} else {
|
|
if (CSSEditUtils::IsCSSEditableProperty(content, &aHTMLProperty,
|
|
aAttribute)) {
|
|
// The HTML styles defined by aHTMLProperty/aAttribute have a CSS
|
|
// equivalence in this implementation for node; let's check if it
|
|
// carries those CSS styles
|
|
if (aValue) {
|
|
theValue.Assign(*aValue);
|
|
}
|
|
Result<bool, nsresult>
|
|
isComputedCSSEquivalentToHTMLInlineStyleOrError =
|
|
CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*this, *content, &aHTMLProperty, aAttribute, theValue);
|
|
if (isComputedCSSEquivalentToHTMLInlineStyleOrError.isErr()) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet() "
|
|
"failed");
|
|
return isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrapErr();
|
|
}
|
|
isSet = isComputedCSSEquivalentToHTMLInlineStyleOrError.unwrap();
|
|
} else {
|
|
isSet = HTMLEditUtils::IsInlineStyleSetByElement(
|
|
*content, aHTMLProperty, aAttribute, aValue, &theValue);
|
|
}
|
|
|
|
if (firstValue != theValue &&
|
|
// For text-decoration related HTML properties, i.e. <u> and
|
|
// <strike>, we have to also check |isSet| because text-decoration
|
|
// is a shorthand property, and it may contains other unrelated
|
|
// longhand components, e.g. text-decoration-color, so we have to do
|
|
// an extra check before setting |*aAll| to false.
|
|
// e.g.
|
|
// firstValue: "underline rgb(0, 0, 0)"
|
|
// theValue: "underline rgb(0, 0, 238)" // <a> uses blue color
|
|
// These two values should be the same if we are checking `<u>`.
|
|
// That's why we need to check |*aFirst| and |isSet|.
|
|
//
|
|
// This is a work-around for text-decoration.
|
|
// The spec issue: https://github.com/w3c/editing/issues/241.
|
|
// Once this spec issue is resolved, we could drop this work-around
|
|
// check.
|
|
(!useTextDecoration || *aFirst != isSet)) {
|
|
*aAll = false;
|
|
}
|
|
}
|
|
|
|
if (isSet) {
|
|
*aAny = true;
|
|
} else {
|
|
*aAll = false;
|
|
}
|
|
}
|
|
}
|
|
if (!*aAny) {
|
|
// make sure that if none of the selection is set, we don't report all is
|
|
// set
|
|
*aAll = false;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::GetInlineProperty(nsStaticAtom& aHTMLProperty,
|
|
nsAtom* aAttribute,
|
|
const nsAString& aValue, bool* aFirst,
|
|
bool* aAny, bool* aAll) const {
|
|
if (NS_WARN_IF(!aFirst) || NS_WARN_IF(!aAny) || NS_WARN_IF(!aAll)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
AutoEditActionDataSetter editActionData(*this, EditAction::eNotEditing);
|
|
if (NS_WARN_IF(!editActionData.CanHandle())) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
const nsAString* val = !aValue.IsEmpty() ? &aValue : nullptr;
|
|
nsresult rv = GetInlinePropertyBase(aHTMLProperty, aAttribute, val, aFirst,
|
|
aAny, aAll, nullptr);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::GetInlinePropertyBase() failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLEditor::GetInlinePropertyWithAttrValue(
|
|
const nsAString& aHTMLProperty, const nsAString& aAttribute,
|
|
const nsAString& aValue, bool* aFirst, bool* aAny, bool* aAll,
|
|
nsAString& outValue) {
|
|
nsStaticAtom* property = NS_GetStaticAtom(aHTMLProperty);
|
|
if (NS_WARN_IF(!property)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
nsStaticAtom* attribute = EditorUtils::GetAttributeAtom(aAttribute);
|
|
// MOZ_KnownLive because nsStaticAtom is available until shutting down.
|
|
nsresult rv = GetInlinePropertyWithAttrValue(MOZ_KnownLive(*property),
|
|
MOZ_KnownLive(attribute), aValue,
|
|
aFirst, aAny, aAll, outValue);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::GetInlinePropertyWithAttrValue() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::GetInlinePropertyWithAttrValue(
|
|
nsStaticAtom& aHTMLProperty, nsAtom* aAttribute, const nsAString& aValue,
|
|
bool* aFirst, bool* aAny, bool* aAll, nsAString& outValue) {
|
|
if (NS_WARN_IF(!aFirst) || NS_WARN_IF(!aAny) || NS_WARN_IF(!aAll)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
AutoEditActionDataSetter editActionData(*this, EditAction::eNotEditing);
|
|
if (NS_WARN_IF(!editActionData.CanHandle())) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
const nsAString* val = !aValue.IsEmpty() ? &aValue : nullptr;
|
|
nsresult rv = GetInlinePropertyBase(aHTMLProperty, aAttribute, val, aFirst,
|
|
aAny, aAll, &outValue);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::GetInlinePropertyBase() failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveAllInlinePropertiesAsAction(
|
|
nsIPrincipal* aPrincipal) {
|
|
AutoEditActionDataSetter editActionData(
|
|
*this, EditAction::eRemoveAllInlineStyleProperties, aPrincipal);
|
|
nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING_ASSERTION(rv == NS_ERROR_EDITOR_ACTION_CANCELED,
|
|
"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(
|
|
*this, ScrollSelectionIntoView::Yes, __FUNCTION__);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eRemoveAllTextProperties, nsIEditor::eNext,
|
|
ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditorBase::ToGenericNSResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
AutoTArray<EditorInlineStyle, 1> removeAllInlineStyles;
|
|
removeAllInlineStyles.AppendElement(EditorInlineStyle::RemoveAllStyles());
|
|
rv = RemoveInlinePropertiesAsSubAction(removeAllInlineStyles);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveInlinePropertiesAsSubAction() failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveInlinePropertyAsAction(nsStaticAtom& aHTMLProperty,
|
|
nsStaticAtom* aAttribute,
|
|
nsIPrincipal* aPrincipal) {
|
|
AutoEditActionDataSetter editActionData(
|
|
*this,
|
|
HTMLEditUtils::GetEditActionForFormatText(aHTMLProperty, aAttribute,
|
|
false),
|
|
aPrincipal);
|
|
switch (editActionData.GetEditAction()) {
|
|
case EditAction::eRemoveFontFamilyProperty:
|
|
MOZ_ASSERT(!u""_ns.IsVoid());
|
|
editActionData.SetData(u""_ns);
|
|
break;
|
|
case EditAction::eRemoveColorProperty:
|
|
case EditAction::eRemoveBackgroundColorPropertyInline:
|
|
editActionData.SetColorData(u""_ns);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING_ASSERTION(rv == NS_ERROR_EDITOR_ACTION_CANCELED,
|
|
"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
AutoTArray<EditorInlineStyle, 8> removeInlineStyleAndRelatedElements;
|
|
AppendInlineStyleAndRelatedStyle(EditorInlineStyle(aHTMLProperty, aAttribute),
|
|
removeInlineStyleAndRelatedElements);
|
|
rv = RemoveInlinePropertiesAsSubAction(removeInlineStyleAndRelatedElements);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveInlinePropertiesAsSubAction() failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLEditor::RemoveInlineProperty(const nsAString& aProperty,
|
|
const nsAString& aAttribute) {
|
|
nsStaticAtom* property = NS_GetStaticAtom(aProperty);
|
|
nsStaticAtom* attribute = EditorUtils::GetAttributeAtom(aAttribute);
|
|
|
|
AutoEditActionDataSetter editActionData(
|
|
*this,
|
|
HTMLEditUtils::GetEditActionForFormatText(*property, attribute, false));
|
|
switch (editActionData.GetEditAction()) {
|
|
case EditAction::eRemoveFontFamilyProperty:
|
|
MOZ_ASSERT(!u""_ns.IsVoid());
|
|
editActionData.SetData(u""_ns);
|
|
break;
|
|
case EditAction::eRemoveColorProperty:
|
|
case EditAction::eRemoveBackgroundColorPropertyInline:
|
|
editActionData.SetColorData(u""_ns);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING_ASSERTION(rv == NS_ERROR_EDITOR_ACTION_CANCELED,
|
|
"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
AutoTArray<EditorInlineStyle, 1> removeOneInlineStyle;
|
|
removeOneInlineStyle.AppendElement(EditorInlineStyle(*property, attribute));
|
|
rv = RemoveInlinePropertiesAsSubAction(removeOneInlineStyle);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveInlinePropertiesAsSubAction() failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
void HTMLEditor::AppendInlineStyleAndRelatedStyle(
|
|
const EditorInlineStyle& aStyleToRemove,
|
|
nsTArray<EditorInlineStyle>& aStylesToRemove) const {
|
|
if (aStyleToRemove.mHTMLProperty == nsGkAtoms::b) {
|
|
EditorInlineStyle strong(*nsGkAtoms::strong);
|
|
if (!aStylesToRemove.Contains(strong)) {
|
|
aStylesToRemove.AppendElement(std::move(strong));
|
|
}
|
|
} else if (aStyleToRemove.mHTMLProperty == nsGkAtoms::i) {
|
|
EditorInlineStyle em(*nsGkAtoms::em);
|
|
if (!aStylesToRemove.Contains(em)) {
|
|
aStylesToRemove.AppendElement(std::move(em));
|
|
}
|
|
} else if (aStyleToRemove.mHTMLProperty == nsGkAtoms::strike) {
|
|
EditorInlineStyle s(*nsGkAtoms::s);
|
|
if (!aStylesToRemove.Contains(s)) {
|
|
aStylesToRemove.AppendElement(std::move(s));
|
|
}
|
|
} else if (aStyleToRemove.mHTMLProperty == nsGkAtoms::font) {
|
|
if (aStyleToRemove.mAttribute == nsGkAtoms::size) {
|
|
EditorInlineStyle big(*nsGkAtoms::big), small(*nsGkAtoms::small);
|
|
if (!aStylesToRemove.Contains(big)) {
|
|
aStylesToRemove.AppendElement(std::move(big));
|
|
}
|
|
if (!aStylesToRemove.Contains(small)) {
|
|
aStylesToRemove.AppendElement(std::move(small));
|
|
}
|
|
}
|
|
// Handling <tt> element code was implemented for composer (bug 115922).
|
|
// This shouldn't work with Document.execCommand() for compatibility with
|
|
// the other browsers. Currently, edit action principal is set only when
|
|
// the root caller is Document::ExecCommand() so that we should handle <tt>
|
|
// element only when the principal is nullptr that must be only when XUL
|
|
// command is executed on composer.
|
|
else if (aStyleToRemove.mAttribute == nsGkAtoms::face &&
|
|
!GetEditActionPrincipal()) {
|
|
EditorInlineStyle tt(*nsGkAtoms::tt);
|
|
if (!aStylesToRemove.Contains(tt)) {
|
|
aStylesToRemove.AppendElement(std::move(tt));
|
|
}
|
|
}
|
|
}
|
|
if (!aStylesToRemove.Contains(aStyleToRemove)) {
|
|
aStylesToRemove.AppendElement(aStyleToRemove);
|
|
}
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveInlinePropertiesAsSubAction(
|
|
const nsTArray<EditorInlineStyle>& aStylesToRemove) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!aStylesToRemove.IsEmpty());
|
|
|
|
DebugOnly<nsresult> rvIgnored = CommitComposition();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"EditorBase::CommitComposition() failed, but ignored");
|
|
|
|
if (SelectionRef().IsCollapsed()) {
|
|
// Manipulating text attributes on a collapsed selection only sets state
|
|
// for the next text insertion
|
|
mPendingStylesToApplyToNewContent->ClearStyles(aStylesToRemove);
|
|
return NS_OK;
|
|
}
|
|
|
|
// XXX Shouldn't we quit before calling `CommitComposition()`?
|
|
if (IsInPlaintextMode()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result.Rv();
|
|
}
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(
|
|
*this, ScrollSelectionIntoView::Yes, __FUNCTION__);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eRemoveTextProperty, nsIEditor::eNext,
|
|
ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return ignoredError.StealNSResult();
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
// TODO: We don't need AutoTransactionsConserveSelection here in the normal
|
|
// cases, but removing this may cause the behavior with the legacy
|
|
// mutation event listeners. We should try to delete this in a bug.
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
AutoRangeArray selectionRanges(SelectionRef());
|
|
for (const EditorInlineStyle& styleToRemove : aStylesToRemove) {
|
|
// The ranges may be updated by changing the DOM tree. In strictly
|
|
// speaking, we should save and restore the ranges at every range loop,
|
|
// but we've never done so and it may be expensive if there are a lot of
|
|
// ranges. Therefore, we should do it for every style handling for now.
|
|
// TODO: We should collect everything required for removing the style before
|
|
// touching the DOM tree. Then, we need to save and restore the
|
|
// ranges only once.
|
|
MOZ_ALWAYS_TRUE(selectionRanges.SaveAndTrackRanges(*this));
|
|
const bool isCSSInvertibleStyle =
|
|
styleToRemove.mHTMLProperty &&
|
|
CSSEditUtils::IsCSSInvertible(*styleToRemove.mHTMLProperty,
|
|
styleToRemove.mAttribute);
|
|
for (const OwningNonNull<nsRange>& range : selectionRanges.Ranges()) {
|
|
if (styleToRemove.mHTMLProperty == nsGkAtoms::name) {
|
|
// Promote range if it starts or end in a named anchor and we want to
|
|
// remove named anchors
|
|
nsresult rv = PromoteRangeIfStartsOrEndsInNamedAnchor(*range);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::PromoteRangeIfStartsOrEndsInNamedAnchor() failed");
|
|
return rv;
|
|
}
|
|
} else {
|
|
// Adjust range to include any ancestors whose children are entirely
|
|
// selected
|
|
nsresult rv = PromoteInlineRange(*range);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::PromoteInlineRange() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Remove this style from ancestors of our range endpoints, splitting
|
|
// them as appropriate
|
|
SplitRangeOffResult splitRangeOffResult =
|
|
SplitAncestorStyledInlineElementsAtRangeEdges(
|
|
EditorDOMRange(range), styleToRemove.mHTMLProperty,
|
|
styleToRemove.mAttribute);
|
|
if (splitRangeOffResult.isErr()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitAncestorStyledInlineElementsAtRangeEdges() "
|
|
"failed");
|
|
return splitRangeOffResult.unwrapErr();
|
|
}
|
|
// There is AutoTransactionsConserveSelection, so we don't need to
|
|
// update selection here.
|
|
splitRangeOffResult.IgnoreCaretPointSuggestion();
|
|
|
|
// XXX Modifying `range` means that we may modify ranges in `Selection`.
|
|
// Is this intentional? Note that the range may be not in
|
|
// `Selection` too. It seems that at least one of them is not
|
|
// an unexpected case.
|
|
const EditorDOMRange& splitRange = splitRangeOffResult.RangeRef();
|
|
if (NS_WARN_IF(!splitRange.IsPositioned())) {
|
|
continue;
|
|
}
|
|
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContentsToInvertStyle;
|
|
{
|
|
// Collect top level children in the range first.
|
|
// TODO: Perhaps, HTMLEditUtils::IsSplittableNode should be used here
|
|
// instead of EditorUtils::IsEditableContent.
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContentsAroundRange;
|
|
if (splitRange.InSameContainer() &&
|
|
splitRange.StartRef().IsInTextNode()) {
|
|
if (!EditorUtils::IsEditableContent(
|
|
*splitRange.StartRef().ContainerAs<Text>(),
|
|
EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
arrayOfContentsAroundRange.AppendElement(
|
|
*splitRange.StartRef().ContainerAs<Text>());
|
|
} else if (splitRange.IsInTextNodes() &&
|
|
splitRange.InAdjacentSiblings()) {
|
|
// Adjacent siblings are in a same element, so the editable state of
|
|
// both text nodes are always same.
|
|
if (!EditorUtils::IsEditableContent(
|
|
*splitRange.StartRef().ContainerAs<Text>(),
|
|
EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
arrayOfContentsAroundRange.AppendElement(
|
|
*splitRange.StartRef().ContainerAs<Text>());
|
|
arrayOfContentsAroundRange.AppendElement(
|
|
*splitRange.EndRef().ContainerAs<Text>());
|
|
} else {
|
|
// Append first node if it's a text node but selected not entirely.
|
|
if (splitRange.StartRef().IsInTextNode() &&
|
|
!splitRange.StartRef().IsStartOfContainer() &&
|
|
EditorUtils::IsEditableContent(
|
|
*splitRange.StartRef().ContainerAs<Text>(),
|
|
EditorType::HTML)) {
|
|
arrayOfContentsAroundRange.AppendElement(
|
|
*splitRange.StartRef().ContainerAs<Text>());
|
|
}
|
|
// Append all entirely selected nodes.
|
|
ContentSubtreeIterator subtreeIter;
|
|
if (NS_SUCCEEDED(
|
|
subtreeIter.Init(splitRange.StartRef().ToRawRangeBoundary(),
|
|
splitRange.EndRef().ToRawRangeBoundary()))) {
|
|
for (; !subtreeIter.IsDone(); subtreeIter.Next()) {
|
|
nsCOMPtr<nsINode> node = subtreeIter.GetCurrentNode();
|
|
if (NS_WARN_IF(!node)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (node->IsContent() &&
|
|
EditorUtils::IsEditableContent(*node->AsContent(),
|
|
EditorType::HTML)) {
|
|
arrayOfContentsAroundRange.AppendElement(*node->AsContent());
|
|
}
|
|
}
|
|
}
|
|
// Append last node if it's a text node but selected not entirely.
|
|
if (!splitRange.InSameContainer() &&
|
|
splitRange.EndRef().IsInTextNode() &&
|
|
!splitRange.EndRef().IsEndOfContainer() &&
|
|
EditorUtils::IsEditableContent(
|
|
*splitRange.EndRef().ContainerAs<Text>(), EditorType::HTML)) {
|
|
arrayOfContentsAroundRange.AppendElement(
|
|
*splitRange.EndRef().ContainerAs<Text>());
|
|
}
|
|
}
|
|
if (isCSSInvertibleStyle) {
|
|
arrayOfContentsToInvertStyle.SetCapacity(
|
|
arrayOfContentsAroundRange.Length());
|
|
}
|
|
|
|
for (OwningNonNull<nsIContent>& content : arrayOfContentsAroundRange) {
|
|
// We should remove style from the element and its descendants.
|
|
if (content->IsElement()) {
|
|
Result<EditorDOMPoint, nsresult> removeStyleResult =
|
|
RemoveStyleInside(MOZ_KnownLive(*content->AsElement()),
|
|
styleToRemove.mHTMLProperty,
|
|
styleToRemove.mAttribute,
|
|
SpecifiedStyle::Preserve);
|
|
if (MOZ_UNLIKELY(removeStyleResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::RemoveStyleInside() failed");
|
|
return removeStyleResult.unwrapErr();
|
|
}
|
|
// There is AutoTransactionsConserveSelection, so we don't need to
|
|
// update selection here.
|
|
|
|
// If the element was removed from the DOM tree by
|
|
// RemoveStyleInside, we need to do nothing for it anymore.
|
|
if (!content->GetParentNode()) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (isCSSInvertibleStyle) {
|
|
arrayOfContentsToInvertStyle.AppendElement(content);
|
|
}
|
|
|
|
// If the style is specified in parent block and we can remove the
|
|
// style with inserting new <span> element, we should do it.
|
|
Result<bool, nsresult> isRemovableParentStyleOrError =
|
|
IsRemovableParentStyleWithNewSpanElement(
|
|
MOZ_KnownLive(content), styleToRemove.mHTMLProperty,
|
|
styleToRemove.mAttribute);
|
|
if (MOZ_UNLIKELY(isRemovableParentStyleOrError.isErr())) {
|
|
NS_WARNING(
|
|
"HTMLEditor::IsRemovableParentStyleWithNewSpanElement() "
|
|
"failed");
|
|
return isRemovableParentStyleOrError.unwrapErr();
|
|
}
|
|
if (!isRemovableParentStyleOrError.unwrap()) {
|
|
// E.g., text-decoration cannot be override visually in children.
|
|
// In such cases, we can do nothing.
|
|
continue;
|
|
}
|
|
|
|
// If it's not a text node, should wrap it into a new element,
|
|
// move it into direct child which has same style, or specify
|
|
// the style to its parent.
|
|
if (!content->IsText()) {
|
|
// XXX Do we need to call this even when data node or something? If
|
|
// so, for what?
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
Result<EditorDOMPoint, nsresult> setStyleResult =
|
|
SetInlinePropertyOnNode(
|
|
MOZ_KnownLive(content), *styleToRemove.mHTMLProperty,
|
|
styleToRemove.mAttribute, u"-moz-editor-invert-value"_ns);
|
|
if (MOZ_UNLIKELY(setStyleResult.isErr())) {
|
|
if (NS_WARN_IF(setStyleResult.unwrapErr() ==
|
|
NS_ERROR_EDITOR_DESTROYED)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SetInlinePropertyOnNode(-moz-editor-invert-"
|
|
"value) failed");
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING(
|
|
"HTMLEditor::SetInlinePropertyOnNode(-moz-editor-invert-"
|
|
"value) failed, but ignored");
|
|
}
|
|
// There is AutoTransactionsConserveSelection, so we don't need to
|
|
// update selection here.
|
|
continue;
|
|
}
|
|
|
|
// If current node is a text node, we need to create `<span>` element
|
|
// for it to overwrite parent style. Unfortunately, all browsers
|
|
// don't join text nodes when removing a style. Therefore, there
|
|
// may be multiple text nodes as adjacent siblings. That's the
|
|
// reason why we need to handle text nodes in this loop.
|
|
uint32_t startOffset = content == splitRange.StartRef().GetContainer()
|
|
? splitRange.StartRef().Offset()
|
|
: 0;
|
|
uint32_t endOffset = content == splitRange.EndRef().GetContainer()
|
|
? splitRange.EndRef().Offset()
|
|
: content->Length();
|
|
SplitRangeOffFromNodeResult wrapTextInStyledElementResult =
|
|
SetInlinePropertyOnTextNode(
|
|
MOZ_KnownLive(*content->AsText()), startOffset, endOffset,
|
|
*styleToRemove.mHTMLProperty, styleToRemove.mAttribute,
|
|
u"-moz-editor-invert-value"_ns);
|
|
if (wrapTextInStyledElementResult.isErr()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SetInlinePropertyOnTextNode(-moz-editor-invert-"
|
|
"value) failed");
|
|
return wrapTextInStyledElementResult.unwrapErr();
|
|
}
|
|
// There is AutoTransactionsConserveSelection, so we don't need to
|
|
// update selection here.
|
|
wrapTextInStyledElementResult.IgnoreCaretPointSuggestion();
|
|
// If we've split the content, let's swap content in
|
|
// arrayOfContentsToInvertStyle with the text node which is applied
|
|
// the style.
|
|
if (isCSSInvertibleStyle) {
|
|
MOZ_ASSERT(
|
|
wrapTextInStyledElementResult.GetMiddleContentAs<Text>());
|
|
if (Text* textNode =
|
|
wrapTextInStyledElementResult.GetMiddleContentAs<Text>()) {
|
|
if (textNode != content) {
|
|
arrayOfContentsToInvertStyle.ReplaceElementAt(
|
|
arrayOfContentsToInvertStyle.Length() - 1,
|
|
OwningNonNull<nsIContent>(*textNode));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (arrayOfContentsToInvertStyle.IsEmpty()) {
|
|
continue;
|
|
}
|
|
MOZ_ASSERT(isCSSInvertibleStyle);
|
|
|
|
// Finally, we should remove the style from all leaf text nodes if
|
|
// they still have the style.
|
|
AutoTArray<OwningNonNull<Text>, 32> leafTextNodes;
|
|
for (const OwningNonNull<nsIContent>& content :
|
|
arrayOfContentsToInvertStyle) {
|
|
// XXX Should we ignore content which has already removed from the
|
|
// DOM tree by the previous for-loop?
|
|
if (content->IsElement()) {
|
|
CollectEditableLeafTextNodes(*content->AsElement(), leafTextNodes);
|
|
}
|
|
}
|
|
for (const OwningNonNull<Text>& textNode : leafTextNodes) {
|
|
Result<bool, nsresult> isRemovableParentStyleOrError =
|
|
IsRemovableParentStyleWithNewSpanElement(
|
|
MOZ_KnownLive(textNode), styleToRemove.mHTMLProperty,
|
|
styleToRemove.mAttribute);
|
|
if (isRemovableParentStyleOrError.isErr()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::IsRemovableParentStyleWithNewSpanElement() "
|
|
"failed");
|
|
return isRemovableParentStyleOrError.unwrapErr();
|
|
}
|
|
if (!isRemovableParentStyleOrError.unwrap()) {
|
|
continue;
|
|
}
|
|
// MOZ_KnownLive because 'leafTextNodes' is guaranteed to
|
|
// keep it alive.
|
|
SplitRangeOffFromNodeResult wrapTextInStyledElementResult =
|
|
SetInlinePropertyOnTextNode(
|
|
MOZ_KnownLive(textNode), 0, textNode->TextLength(),
|
|
*styleToRemove.mHTMLProperty, styleToRemove.mAttribute,
|
|
u"-moz-editor-invert-value"_ns);
|
|
if (wrapTextInStyledElementResult.isErr()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SetInlinePropertyOnTextNode(-moz-editor-invert-"
|
|
"value) failed");
|
|
return wrapTextInStyledElementResult.unwrapErr();
|
|
}
|
|
// There is AutoTransactionsConserveSelection, so we don't need to
|
|
// update selection here.
|
|
wrapTextInStyledElementResult.IgnoreCaretPointSuggestion();
|
|
} // for-loop of leafTextNodes
|
|
} // for-loop of selectionRanges
|
|
MOZ_ASSERT(selectionRanges.HasSavedRanges());
|
|
selectionRanges.RestoreFromSavedRanges();
|
|
} // for-loop of styles
|
|
|
|
MOZ_ASSERT(!selectionRanges.HasSavedRanges());
|
|
nsresult rv = selectionRanges.ApplyTo(SelectionRef());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AutoRangeArray::ApplyTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
Result<bool, nsresult> HTMLEditor::IsRemovableParentStyleWithNewSpanElement(
|
|
nsIContent& aContent, nsAtom* aHTMLProperty, nsAtom* aAttribute) const {
|
|
// We don't support to remove all inline styles with this path.
|
|
if (!aHTMLProperty) {
|
|
return false;
|
|
}
|
|
|
|
// First check whether the style is invertible since this is the fastest
|
|
// check.
|
|
if (!CSSEditUtils::IsCSSInvertible(*aHTMLProperty, aAttribute)) {
|
|
return false;
|
|
}
|
|
|
|
// If parent block has the removing style, we should create `<span>`
|
|
// element to remove the style even in HTML mode since Chrome does it.
|
|
if (!CSSEditUtils::IsCSSEditableProperty(&aContent, aHTMLProperty,
|
|
aAttribute)) {
|
|
return false;
|
|
}
|
|
|
|
// aContent's computed style indicates the CSS equivalence to
|
|
// the HTML style to remove is applied; but we found no element
|
|
// in the ancestors of aContent carrying specified styles;
|
|
// assume it comes from a rule and let's try to insert a span
|
|
// "inverting" the style
|
|
nsAutoString emptyString;
|
|
Result<bool, nsresult> isComputedCSSEquivalentToHTMLInlineStyleOrError =
|
|
CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*this, aContent, aHTMLProperty, aAttribute, emptyString);
|
|
NS_WARNING_ASSERTION(
|
|
isComputedCSSEquivalentToHTMLInlineStyleOrError.isOk(),
|
|
"CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet() "
|
|
"failed");
|
|
return isComputedCSSEquivalentToHTMLInlineStyleOrError;
|
|
}
|
|
|
|
void HTMLEditor::CollectEditableLeafTextNodes(
|
|
Element& aElement, nsTArray<OwningNonNull<Text>>& aLeafTextNodes) const {
|
|
for (nsIContent* child = aElement.GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
if (child->IsElement()) {
|
|
CollectEditableLeafTextNodes(*child->AsElement(), aLeafTextNodes);
|
|
continue;
|
|
}
|
|
if (child->IsText()) {
|
|
aLeafTextNodes.AppendElement(*child->AsText());
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult HTMLEditor::IncreaseFontSizeAsAction(nsIPrincipal* aPrincipal) {
|
|
AutoEditActionDataSetter editActionData(*this, EditAction::eIncrementFontSize,
|
|
aPrincipal);
|
|
nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING_ASSERTION(rv == NS_ERROR_EDITOR_ACTION_CANCELED,
|
|
"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
rv = IncrementOrDecrementFontSizeAsSubAction(FontSize::incr);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::IncrementOrDecrementFontSizeAsSubAction("
|
|
"FontSize::incr) failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::DecreaseFontSizeAsAction(nsIPrincipal* aPrincipal) {
|
|
AutoEditActionDataSetter editActionData(*this, EditAction::eDecrementFontSize,
|
|
aPrincipal);
|
|
nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING_ASSERTION(rv == NS_ERROR_EDITOR_ACTION_CANCELED,
|
|
"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
rv = IncrementOrDecrementFontSizeAsSubAction(FontSize::decr);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::IncrementOrDecrementFontSizeAsSubAction("
|
|
"FontSize::decr) failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::IncrementOrDecrementFontSizeAsSubAction(
|
|
FontSize aIncrementOrDecrement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// Committing composition and changing font size should be undone together.
|
|
AutoPlaceholderBatch treatAsOneTransaction(
|
|
*this, ScrollSelectionIntoView::Yes, __FUNCTION__);
|
|
|
|
DebugOnly<nsresult> rvIgnored = CommitComposition();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"EditorBase::CommitComposition() failed, but ignored");
|
|
|
|
// If selection is collapsed, set typing state
|
|
if (SelectionRef().IsCollapsed()) {
|
|
nsStaticAtom& bigOrSmallTagName = aIncrementOrDecrement == FontSize::incr
|
|
? *nsGkAtoms::big
|
|
: *nsGkAtoms::small;
|
|
|
|
// Let's see in what kind of element the selection is
|
|
if (!SelectionRef().RangeCount()) {
|
|
return NS_OK;
|
|
}
|
|
const auto firstRangeStartPoint =
|
|
EditorBase::GetFirstSelectionStartPoint<EditorRawDOMPoint>();
|
|
if (NS_WARN_IF(!firstRangeStartPoint.IsSet())) {
|
|
return NS_OK;
|
|
}
|
|
Element* element =
|
|
firstRangeStartPoint.GetContainerOrContainerParentElement();
|
|
if (NS_WARN_IF(!element)) {
|
|
return NS_OK;
|
|
}
|
|
if (!HTMLEditUtils::CanNodeContain(*element, bigOrSmallTagName)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Manipulating text attributes on a collapsed selection only sets state
|
|
// for the next text insertion
|
|
mPendingStylesToApplyToNewContent->PreserveStyle(bigOrSmallTagName, nullptr,
|
|
u""_ns);
|
|
return NS_OK;
|
|
}
|
|
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eSetTextProperty, nsIEditor::eNext, ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return ignoredError.StealNSResult();
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
// TODO: We don't need AutoTransactionsConserveSelection here in the normal
|
|
// cases, but removing this may cause the behavior with the legacy
|
|
// mutation event listeners. We should try to delete this in a bug.
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
AutoRangeArray selectionRanges(SelectionRef());
|
|
MOZ_ALWAYS_TRUE(selectionRanges.SaveAndTrackRanges(*this));
|
|
for (const OwningNonNull<nsRange>& domRange : selectionRanges.Ranges()) {
|
|
// Adjust range to include any ancestors with entirely selected children
|
|
if (NS_FAILED(PromoteInlineRange(*domRange))) {
|
|
NS_WARNING("HTMLEditor::PromoteInlineRange() failed");
|
|
// for consistency with setting/removing inline styles, we should keep
|
|
// handling the other ranges.
|
|
continue;
|
|
}
|
|
|
|
EditorDOMRange range(domRange);
|
|
if (NS_WARN_IF(!range.IsPositioned())) {
|
|
continue;
|
|
}
|
|
|
|
if (range.InSameContainer() && range.StartRef().IsInTextNode()) {
|
|
Result<CreateElementResult, nsresult> wrapInBigOrSmallElementResult =
|
|
SetFontSizeOnTextNode(
|
|
MOZ_KnownLive(*range.StartRef().ContainerAs<Text>()),
|
|
range.StartRef().Offset(), range.EndRef().Offset(),
|
|
aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(wrapInBigOrSmallElementResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetFontSizeOnTextNode() failed");
|
|
return wrapInBigOrSmallElementResult.unwrapErr();
|
|
}
|
|
// There is an AutoTransactionsConserveSelection instance so that we don't
|
|
// need to update selection for this change.
|
|
wrapInBigOrSmallElementResult.inspect().IgnoreCaretPointSuggestion();
|
|
continue;
|
|
}
|
|
|
|
// Not the easy case. Range not contained in single text node. There
|
|
// are up to three phases here. There are all the nodes reported by the
|
|
// subtree iterator to be processed. And there are potentially a
|
|
// starting textnode and an ending textnode which are only partially
|
|
// contained by the range.
|
|
|
|
// Let's handle the nodes reported by the iterator. These nodes are
|
|
// entirely contained in the selection range. We build up a list of them
|
|
// (since doing operations on the document during iteration would perturb
|
|
// the iterator).
|
|
|
|
// Iterate range and build up array
|
|
ContentSubtreeIterator subtreeIter;
|
|
if (NS_SUCCEEDED(subtreeIter.Init(range.StartRef().ToRawRangeBoundary(),
|
|
range.EndRef().ToRawRangeBoundary()))) {
|
|
nsTArray<OwningNonNull<nsIContent>> arrayOfContents;
|
|
for (; !subtreeIter.IsDone(); subtreeIter.Next()) {
|
|
if (NS_WARN_IF(!subtreeIter.GetCurrentNode()->IsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
OwningNonNull<nsIContent> content =
|
|
*subtreeIter.GetCurrentNode()->AsContent();
|
|
|
|
if (EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
arrayOfContents.AppendElement(content);
|
|
}
|
|
}
|
|
|
|
// Now that we have the list, do the font size change on each node
|
|
for (OwningNonNull<nsIContent>& content : arrayOfContents) {
|
|
// MOZ_KnownLive because of bug 1622253
|
|
Result<EditorDOMPoint, nsresult> fontChangeOnNodeResult =
|
|
SetFontSizeWithBigOrSmallElement(MOZ_KnownLive(content),
|
|
aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(fontChangeOnNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetFontSizeWithBigOrSmallElement() failed");
|
|
return fontChangeOnNodeResult.unwrapErr();
|
|
}
|
|
// There is an AutoTransactionsConserveSelection, so we don't need to
|
|
// update selection here.
|
|
}
|
|
}
|
|
// Now check the start and end parents of the range to see if they need
|
|
// to be separately handled (they do if they are text nodes, due to how
|
|
// the subtree iterator works - it will not have reported them).
|
|
if (range.StartRef().IsInTextNode() &&
|
|
!range.StartRef().IsEndOfContainer() &&
|
|
EditorUtils::IsEditableContent(*range.StartRef().ContainerAs<Text>(),
|
|
EditorType::HTML)) {
|
|
Result<CreateElementResult, nsresult> wrapInBigOrSmallElementResult =
|
|
SetFontSizeOnTextNode(
|
|
MOZ_KnownLive(*range.StartRef().ContainerAs<Text>()),
|
|
range.StartRef().Offset(),
|
|
range.StartRef().ContainerAs<Text>()->TextDataLength(),
|
|
aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(wrapInBigOrSmallElementResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetFontSizeOnTextNode() failed");
|
|
return wrapInBigOrSmallElementResult.unwrapErr();
|
|
}
|
|
// There is an AutoTransactionsConserveSelection instance so that we
|
|
// don't need to update selection for this change.
|
|
wrapInBigOrSmallElementResult.inspect().IgnoreCaretPointSuggestion();
|
|
}
|
|
if (range.EndRef().IsInTextNode() && !range.EndRef().IsStartOfContainer() &&
|
|
EditorUtils::IsEditableContent(*range.EndRef().ContainerAs<Text>(),
|
|
EditorType::HTML)) {
|
|
Result<CreateElementResult, nsresult> wrapInBigOrSmallElementResult =
|
|
SetFontSizeOnTextNode(
|
|
MOZ_KnownLive(*range.EndRef().ContainerAs<Text>()), 0u,
|
|
range.EndRef().Offset(), aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(wrapInBigOrSmallElementResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetFontSizeOnTextNode() failed");
|
|
return wrapInBigOrSmallElementResult.unwrapErr();
|
|
}
|
|
// There is an AutoTransactionsConserveSelection instance so that we
|
|
// don't need to update selection for this change.
|
|
wrapInBigOrSmallElementResult.inspect().IgnoreCaretPointSuggestion();
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(selectionRanges.HasSavedRanges());
|
|
selectionRanges.RestoreFromSavedRanges();
|
|
nsresult rv = selectionRanges.ApplyTo(SelectionRef());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AutoRangeArray::ApplyTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
Result<CreateElementResult, nsresult> HTMLEditor::SetFontSizeOnTextNode(
|
|
Text& aTextNode, uint32_t aStartOffset, uint32_t aEndOffset,
|
|
FontSize aIncrementOrDecrement) {
|
|
// Don't need to do anything if no characters actually selected
|
|
if (aStartOffset == aEndOffset) {
|
|
return CreateElementResult::NotHandled();
|
|
}
|
|
|
|
if (!aTextNode.GetParentNode() ||
|
|
!HTMLEditUtils::CanNodeContain(*aTextNode.GetParentNode(),
|
|
*nsGkAtoms::big)) {
|
|
return CreateElementResult::NotHandled();
|
|
}
|
|
|
|
aEndOffset = std::min(aTextNode.Length(), aEndOffset);
|
|
|
|
// Make the range an independent node.
|
|
RefPtr<Text> textNodeForTheRange = &aTextNode;
|
|
|
|
EditorDOMPoint pointToPutCaret;
|
|
{
|
|
auto pointToPutCaretOrError =
|
|
[&]() MOZ_CAN_RUN_SCRIPT -> Result<EditorDOMPoint, nsresult> {
|
|
EditorDOMPoint pointToPutCaret;
|
|
// Split at the end of the range.
|
|
EditorDOMPoint atEnd(textNodeForTheRange, aEndOffset);
|
|
if (!atEnd.IsEndOfContainer()) {
|
|
// We need to split off back of text node
|
|
SplitNodeResult splitAtEndResult = SplitNodeWithTransaction(atEnd);
|
|
if (splitAtEndResult.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return Err(splitAtEndResult.unwrapErr());
|
|
}
|
|
if (MOZ_UNLIKELY(!splitAtEndResult.HasCaretPointSuggestion())) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeWithTransaction() didn't suggest caret "
|
|
"point");
|
|
return Err(NS_ERROR_FAILURE);
|
|
}
|
|
splitAtEndResult.MoveCaretPointTo(pointToPutCaret, *this, {});
|
|
MOZ_ASSERT_IF(AllowsTransactionsToChangeSelection(),
|
|
pointToPutCaret.IsSet());
|
|
textNodeForTheRange =
|
|
Text::FromNodeOrNull(splitAtEndResult.GetPreviousContent());
|
|
MOZ_DIAGNOSTIC_ASSERT(textNodeForTheRange);
|
|
// When adding caret suggestion to SplitNodeResult, here didn't change
|
|
// selection so that just ignore it.
|
|
splitAtEndResult.IgnoreCaretPointSuggestion();
|
|
}
|
|
|
|
// Split at the start of the range.
|
|
EditorDOMPoint atStart(textNodeForTheRange, aStartOffset);
|
|
if (!atStart.IsStartOfContainer()) {
|
|
// We need to split off front of text node
|
|
SplitNodeResult splitAtStartResult = SplitNodeWithTransaction(atStart);
|
|
if (splitAtStartResult.isErr()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return Err(splitAtStartResult.unwrapErr());
|
|
}
|
|
if (MOZ_UNLIKELY(!splitAtStartResult.HasCaretPointSuggestion())) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeWithTransaction() didn't suggest caret "
|
|
"point");
|
|
return Err(NS_ERROR_FAILURE);
|
|
}
|
|
splitAtStartResult.MoveCaretPointTo(pointToPutCaret, *this, {});
|
|
MOZ_ASSERT_IF(AllowsTransactionsToChangeSelection(),
|
|
pointToPutCaret.IsSet());
|
|
textNodeForTheRange =
|
|
Text::FromNodeOrNull(splitAtStartResult.GetNextContent());
|
|
MOZ_DIAGNOSTIC_ASSERT(textNodeForTheRange);
|
|
// When adding caret suggestion to SplitNodeResult, here didn't change
|
|
// selection so that just ignore it.
|
|
splitAtStartResult.IgnoreCaretPointSuggestion();
|
|
}
|
|
|
|
return pointToPutCaret;
|
|
}();
|
|
if (MOZ_UNLIKELY(pointToPutCaretOrError.isErr())) {
|
|
// Don't warn here since it should be done in the lambda.
|
|
return pointToPutCaretOrError.propagateErr();
|
|
}
|
|
pointToPutCaret = pointToPutCaretOrError.unwrap();
|
|
}
|
|
|
|
// Look for siblings that are correct type of node
|
|
nsStaticAtom* const bigOrSmallTagName =
|
|
aIncrementOrDecrement == FontSize::incr ? nsGkAtoms::big
|
|
: nsGkAtoms::small;
|
|
nsCOMPtr<nsIContent> sibling = HTMLEditUtils::GetPreviousSibling(
|
|
*textNodeForTheRange, {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (sibling && sibling->IsHTMLElement(bigOrSmallTagName)) {
|
|
// Previous sib is already right kind of inline node; slide this over
|
|
Result<MoveNodeResult, nsresult> moveTextNodeResult =
|
|
MoveNodeToEndWithTransaction(*textNodeForTheRange, *sibling);
|
|
if (MOZ_UNLIKELY(moveTextNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return moveTextNodeResult.propagateErr();
|
|
}
|
|
MoveNodeResult unwrappedMoveTextNodeResult = moveTextNodeResult.unwrap();
|
|
unwrappedMoveTextNodeResult.MoveCaretPointTo(
|
|
pointToPutCaret, *this, {SuggestCaret::OnlyIfHasSuggestion});
|
|
// XXX Should we return the new container?
|
|
return CreateElementResult::NotHandled(std::move(pointToPutCaret));
|
|
}
|
|
sibling = HTMLEditUtils::GetNextSibling(
|
|
*textNodeForTheRange, {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (sibling && sibling->IsHTMLElement(bigOrSmallTagName)) {
|
|
// Following sib is already right kind of inline node; slide this over
|
|
Result<MoveNodeResult, nsresult> moveTextNodeResult =
|
|
MoveNodeWithTransaction(*textNodeForTheRange,
|
|
EditorDOMPoint(sibling, 0u));
|
|
if (MOZ_UNLIKELY(moveTextNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return moveTextNodeResult.propagateErr();
|
|
}
|
|
MoveNodeResult unwrappedMoveTextNodeResult = moveTextNodeResult.unwrap();
|
|
unwrappedMoveTextNodeResult.MoveCaretPointTo(
|
|
pointToPutCaret, *this, {SuggestCaret::OnlyIfHasSuggestion});
|
|
// XXX Should we return the new container?
|
|
return CreateElementResult::NotHandled(std::move(pointToPutCaret));
|
|
}
|
|
|
|
// Else wrap the node inside font node with appropriate relative size
|
|
Result<CreateElementResult, nsresult> wrapTextInBigOrSmallElementResult =
|
|
InsertContainerWithTransaction(*textNodeForTheRange,
|
|
MOZ_KnownLive(*bigOrSmallTagName));
|
|
if (wrapTextInBigOrSmallElementResult.isErr()) {
|
|
NS_WARNING("HTMLEditor::InsertContainerWithTransaction() failed");
|
|
return wrapTextInBigOrSmallElementResult;
|
|
}
|
|
CreateElementResult unwrappedWrapTextInBigOrSmallElementResult =
|
|
wrapTextInBigOrSmallElementResult.unwrap();
|
|
unwrappedWrapTextInBigOrSmallElementResult.MoveCaretPointTo(
|
|
pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion});
|
|
return CreateElementResult(
|
|
unwrappedWrapTextInBigOrSmallElementResult.UnwrapNewNode(),
|
|
std::move(pointToPutCaret));
|
|
}
|
|
|
|
Result<EditorDOMPoint, nsresult> HTMLEditor::SetFontSizeOfFontElementChildren(
|
|
nsIContent& aContent, FontSize aIncrementOrDecrement) {
|
|
// This routine looks for all the font nodes in the tree rooted by aNode,
|
|
// including aNode itself, looking for font nodes that have the size attr
|
|
// set. Any such nodes need to have big or small put inside them, since
|
|
// they override any big/small that are above them.
|
|
|
|
// If this is a font node with size, put big/small inside it.
|
|
if (aContent.IsHTMLElement(nsGkAtoms::font) &&
|
|
aContent.AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::size)) {
|
|
EditorDOMPoint pointToPutCaret;
|
|
|
|
// Cycle through children and adjust relative font size.
|
|
AutoTArray<OwningNonNull<nsIContent>, 32> arrayOfContents;
|
|
HTMLEditor::GetChildNodesOf(aContent, arrayOfContents);
|
|
for (const auto& child : arrayOfContents) {
|
|
// MOZ_KnownLive because of bug 1622253
|
|
Result<EditorDOMPoint, nsresult> setFontSizeOfChildResult =
|
|
SetFontSizeWithBigOrSmallElement(MOZ_KnownLive(child),
|
|
aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(setFontSizeOfChildResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::WrapContentInBigOrSmallElement() failed");
|
|
return setFontSizeOfChildResult;
|
|
}
|
|
if (setFontSizeOfChildResult.inspect().IsSet()) {
|
|
pointToPutCaret = setFontSizeOfChildResult.unwrap();
|
|
}
|
|
}
|
|
|
|
// WrapContentInBigOrSmallElement already calls us recursively,
|
|
// so we don't need to check our children again.
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
// Otherwise cycle through the children.
|
|
EditorDOMPoint pointToPutCaret;
|
|
AutoTArray<OwningNonNull<nsIContent>, 32> arrayOfContents;
|
|
HTMLEditor::GetChildNodesOf(aContent, arrayOfContents);
|
|
for (const auto& child : arrayOfContents) {
|
|
// MOZ_KnownLive because of bug 1622253
|
|
Result<EditorDOMPoint, nsresult> fontSizeChangeResult =
|
|
SetFontSizeOfFontElementChildren(MOZ_KnownLive(child),
|
|
aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(fontSizeChangeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetFontSizeOfFontElementChildren() failed");
|
|
return fontSizeChangeResult;
|
|
}
|
|
if (fontSizeChangeResult.inspect().IsSet()) {
|
|
pointToPutCaret = fontSizeChangeResult.unwrap();
|
|
}
|
|
}
|
|
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
Result<EditorDOMPoint, nsresult> HTMLEditor::SetFontSizeWithBigOrSmallElement(
|
|
nsIContent& aContent, FontSize aIncrementOrDecrement) {
|
|
nsStaticAtom* const bigOrSmallTagName =
|
|
aIncrementOrDecrement == FontSize::incr ? nsGkAtoms::big
|
|
: nsGkAtoms::small;
|
|
|
|
// Is aContent the opposite of what we want?
|
|
if ((aIncrementOrDecrement == FontSize::incr &&
|
|
aContent.IsHTMLElement(nsGkAtoms::small)) ||
|
|
(aIncrementOrDecrement == FontSize::decr &&
|
|
aContent.IsHTMLElement(nsGkAtoms::big))) {
|
|
// First, populate any nested font elements that have the size attr set
|
|
Result<EditorDOMPoint, nsresult> fontSizeChangeOfDescendantsResult =
|
|
SetFontSizeOfFontElementChildren(aContent, aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(fontSizeChangeOfDescendantsResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetFontSizeOfFontElementChildren() failed");
|
|
return fontSizeChangeOfDescendantsResult;
|
|
}
|
|
EditorDOMPoint pointToPutCaret = fontSizeChangeOfDescendantsResult.unwrap();
|
|
// In that case, just unwrap the <big> or <small> element.
|
|
Result<EditorDOMPoint, nsresult> unwrapBigOrSmallElementResult =
|
|
RemoveContainerWithTransaction(MOZ_KnownLive(*aContent.AsElement()));
|
|
if (MOZ_UNLIKELY(unwrapBigOrSmallElementResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return unwrapBigOrSmallElementResult;
|
|
}
|
|
if (unwrapBigOrSmallElementResult.inspect().IsSet()) {
|
|
pointToPutCaret = unwrapBigOrSmallElementResult.unwrap();
|
|
}
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
if (HTMLEditUtils::CanNodeContain(*bigOrSmallTagName, aContent)) {
|
|
// First, populate any nested font tags that have the size attr set
|
|
Result<EditorDOMPoint, nsresult> fontSizeChangeOfDescendantsResult =
|
|
SetFontSizeOfFontElementChildren(aContent, aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(fontSizeChangeOfDescendantsResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetFontSizeOfFontElementChildren() failed");
|
|
return fontSizeChangeOfDescendantsResult;
|
|
}
|
|
|
|
EditorDOMPoint pointToPutCaret = fontSizeChangeOfDescendantsResult.unwrap();
|
|
|
|
// Next, if next or previous is <big> or <small>, move aContent into it.
|
|
nsCOMPtr<nsIContent> sibling = HTMLEditUtils::GetPreviousSibling(
|
|
aContent, {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (sibling && sibling->IsHTMLElement(bigOrSmallTagName)) {
|
|
Result<MoveNodeResult, nsresult> moveNodeResult =
|
|
MoveNodeToEndWithTransaction(aContent, *sibling);
|
|
if (MOZ_UNLIKELY(moveNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return moveNodeResult.propagateErr();
|
|
}
|
|
MoveNodeResult unwrappedMoveNodeResult = moveNodeResult.unwrap();
|
|
unwrappedMoveNodeResult.MoveCaretPointTo(
|
|
pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion});
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
sibling = HTMLEditUtils::GetNextSibling(
|
|
aContent, {WalkTreeOption::IgnoreNonEditableNode});
|
|
if (sibling && sibling->IsHTMLElement(bigOrSmallTagName)) {
|
|
Result<MoveNodeResult, nsresult> moveNodeResult =
|
|
MoveNodeWithTransaction(aContent, EditorDOMPoint(sibling, 0u));
|
|
if (MOZ_UNLIKELY(moveNodeResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return moveNodeResult.propagateErr();
|
|
}
|
|
MoveNodeResult unwrappedMoveNodeResult = moveNodeResult.unwrap();
|
|
unwrappedMoveNodeResult.MoveCaretPointTo(
|
|
pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion});
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
// Otherwise, wrap aContent in new <big> or <small>
|
|
Result<CreateElementResult, nsresult> wrapInBigOrSmallElementResult =
|
|
InsertContainerWithTransaction(aContent,
|
|
MOZ_KnownLive(*bigOrSmallTagName));
|
|
if (MOZ_UNLIKELY(wrapInBigOrSmallElementResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::InsertContainerWithTransaction() failed");
|
|
return Err(wrapInBigOrSmallElementResult.unwrapErr());
|
|
}
|
|
CreateElementResult unwrappedWrapInBigOrSmallElementResult =
|
|
wrapInBigOrSmallElementResult.unwrap();
|
|
MOZ_ASSERT(unwrappedWrapInBigOrSmallElementResult.GetNewNode());
|
|
unwrappedWrapInBigOrSmallElementResult.MoveCaretPointTo(
|
|
pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion});
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
// none of the above? then cycle through the children.
|
|
// MOOSE: we should group the children together if possible
|
|
// into a single "big" or "small". For the moment they are
|
|
// each getting their own.
|
|
EditorDOMPoint pointToPutCaret;
|
|
AutoTArray<OwningNonNull<nsIContent>, 32> arrayOfContents;
|
|
HTMLEditor::GetChildNodesOf(aContent, arrayOfContents);
|
|
for (const auto& child : arrayOfContents) {
|
|
// MOZ_KnownLive because of bug 1622253
|
|
Result<EditorDOMPoint, nsresult> setFontSizeOfChildResult =
|
|
SetFontSizeWithBigOrSmallElement(MOZ_KnownLive(child),
|
|
aIncrementOrDecrement);
|
|
if (MOZ_UNLIKELY(setFontSizeOfChildResult.isErr())) {
|
|
NS_WARNING("HTMLEditor::SetFontSizeWithBigOrSmallElement() failed");
|
|
return setFontSizeOfChildResult;
|
|
}
|
|
if (setFontSizeOfChildResult.inspect().IsSet()) {
|
|
pointToPutCaret = setFontSizeOfChildResult.unwrap();
|
|
}
|
|
}
|
|
|
|
return pointToPutCaret;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLEditor::GetFontFaceState(bool* aMixed, nsAString& outFace) {
|
|
if (NS_WARN_IF(!aMixed)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
*aMixed = true;
|
|
outFace.Truncate();
|
|
|
|
AutoEditActionDataSetter editActionData(*this, EditAction::eNotEditing);
|
|
if (NS_WARN_IF(!editActionData.CanHandle())) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
bool first, any, all;
|
|
|
|
nsresult rv = GetInlinePropertyBase(*nsGkAtoms::font, nsGkAtoms::face,
|
|
nullptr, &first, &any, &all, &outFace);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::GetInlinePropertyBase(nsGkAtoms::font, nsGkAtoms::face) "
|
|
"failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
if (any && !all) {
|
|
return NS_OK; // mixed
|
|
}
|
|
if (all) {
|
|
*aMixed = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
// if there is no font face, check for tt
|
|
rv = GetInlinePropertyBase(*nsGkAtoms::tt, nullptr, nullptr, &first, &any,
|
|
&all, nullptr);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::GetInlinePropertyBase(nsGkAtoms::tt) failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
if (any && !all) {
|
|
return NS_OK; // mixed
|
|
}
|
|
if (all) {
|
|
*aMixed = false;
|
|
outFace.AssignLiteral("tt");
|
|
}
|
|
|
|
if (!any) {
|
|
// there was no font face attrs of any kind. We are in normal font.
|
|
outFace.Truncate();
|
|
*aMixed = false;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::GetFontColorState(bool* aMixed, nsAString& aOutColor) {
|
|
if (NS_WARN_IF(!aMixed)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
*aMixed = true;
|
|
aOutColor.Truncate();
|
|
|
|
AutoEditActionDataSetter editActionData(*this, EditAction::eNotEditing);
|
|
if (NS_WARN_IF(!editActionData.CanHandle())) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
bool first, any, all;
|
|
nsresult rv = GetInlinePropertyBase(*nsGkAtoms::font, nsGkAtoms::color,
|
|
nullptr, &first, &any, &all, &aOutColor);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::GetInlinePropertyBase(nsGkAtoms::font, nsGkAtoms::color) "
|
|
"failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
if (any && !all) {
|
|
return NS_OK; // mixed
|
|
}
|
|
if (all) {
|
|
*aMixed = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!any) {
|
|
// there was no font color attrs of any kind..
|
|
aOutColor.Truncate();
|
|
*aMixed = false;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// The return value is true only if the instance of the HTML editor we created
|
|
// can handle CSS styles and if the CSS preference is checked.
|
|
NS_IMETHODIMP HTMLEditor::GetIsCSSEnabled(bool* aIsCSSEnabled) {
|
|
*aIsCSSEnabled = IsCSSEnabled();
|
|
return NS_OK;
|
|
}
|
|
|
|
bool HTMLEditor::HasStyleOrIdOrClassAttribute(Element& aElement) {
|
|
return aElement.HasNonEmptyAttr(nsGkAtoms::style) ||
|
|
aElement.HasNonEmptyAttr(nsGkAtoms::_class) ||
|
|
aElement.HasNonEmptyAttr(nsGkAtoms::id);
|
|
}
|
|
|
|
} // namespace mozilla
|