зеркало из https://github.com/mozilla/gecko-dev.git
2592 строки
99 KiB
C++
2592 строки
99 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 "HTMLEditor.h"
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#include "HTMLEditUtils.h"
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#include "TypeInState.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/ContentIterator.h"
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#include "mozilla/EditAction.h"
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#include "mozilla/EditorUtils.h"
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#include "mozilla/SelectionState.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 "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 ChildBlockBoundary = HTMLEditUtils::ChildBlockBoundary;
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nsresult HTMLEditor::SetInlinePropertyAsAction(nsAtom& aProperty,
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nsAtom* 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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AutoPlaceholderBatch treatAsOneTransaction(*this);
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nsAtom* property = &aProperty;
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nsAtom* attribute = aAttribute;
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nsAutoString value(aValue);
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if (&aProperty == nsGkAtoms::sup) {
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// Superscript and Subscript styles are mutually exclusive.
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nsresult rv = RemoveInlinePropertyInternal(nsGkAtoms::sub, nullptr,
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RemoveRelatedElements::No);
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if (NS_FAILED(rv)) {
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NS_WARNING(
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"HTMLEditor::RemoveInlinePropertyInternal(nsGkAtoms::sub, "
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"RemoveRelatedElements::No) failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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} else if (&aProperty == nsGkAtoms::sub) {
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// Superscript and Subscript styles are mutually exclusive.
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nsresult rv = RemoveInlinePropertyInternal(nsGkAtoms::sup, nullptr,
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RemoveRelatedElements::No);
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if (NS_FAILED(rv)) {
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NS_WARNING(
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"HTMLEditor::RemoveInlinePropertyInternal(nsGkAtoms::sup, "
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"RemoveRelatedElements::No) failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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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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nsresult rv = RemoveInlinePropertyInternal(
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nsGkAtoms::font, nsGkAtoms::face, RemoveRelatedElements::No);
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if (NS_FAILED(rv)) {
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NS_WARNING(
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"HTMLEditor::RemoveInlinePropertyInternal(nsGkAtoms::font, "
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"nsGkAtoms::face, RemoveRelatedElements::No) failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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} else if (&aProperty == nsGkAtoms::font && aAttribute == nsGkAtoms::face) {
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if (!value.LowerCaseEqualsASCII("tt")) {
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nsresult rv = RemoveInlinePropertyInternal(nsGkAtoms::tt, nullptr,
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RemoveRelatedElements::No);
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if (NS_FAILED(rv)) {
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NS_WARNING(
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"HTMLEditor::RemoveInlinePropertyInternal(nsGkAtoms::tt, "
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"RemoveRelatedElements::No) failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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} else {
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nsresult rv = RemoveInlinePropertyInternal(
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nsGkAtoms::font, nsGkAtoms::face, RemoveRelatedElements::No);
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if (NS_FAILED(rv)) {
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NS_WARNING(
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"HTMLEditor::RemoveInlinePropertyInternal(nsGkAtoms::font, "
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"nsGkAtoms::face, RemoveRelatedElements::No) failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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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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rv = SetInlinePropertyInternal(MOZ_KnownLive(*property),
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MOZ_KnownLive(attribute), value);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"HTMLEditor::SetInlinePropertyInternal() 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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RefPtr<nsAtom> property = NS_Atomize(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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rv = SetInlinePropertyInternal(*property, MOZ_KnownLive(attribute), aValue);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"HTMLEditor::SetInlinePropertyInternal() failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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nsresult HTMLEditor::SetInlinePropertyInternal(
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nsAtom& aProperty, nsAtom* aAttribute, const nsAString& aAttributeValue) {
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MOZ_ASSERT(IsEditActionDataAvailable());
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if (NS_WARN_IF(!mInitSucceeded)) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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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 (SelectionRefPtr()->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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mTypeInState->SetProp(&aProperty, aAttribute, aAttributeValue);
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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 (IsPlaintextEditor()) {
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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(*this);
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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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{
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AutoSelectionRestorer restoreSelectionLater(*this);
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AutoTransactionsConserveSelection dontChangeMySelection(*this);
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// Loop through the ranges in the selection
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// XXX This is different from `SetCSSBackgroundColorWithTransaction()`.
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// It refers `Selection::GetRangeAt()` in each time. The result may
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// be different if mutation event listener changes the `Selection`.
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AutoRangeArray arrayOfRanges(SelectionRefPtr());
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for (auto& range : arrayOfRanges.mRanges) {
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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(*range);
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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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// XXX Shouldn't we skip the range if it's been collapsed by mutation
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// event listener?
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EditorDOMPoint startOfRange(range->StartRef());
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EditorDOMPoint endOfRange(range->EndRef());
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if (NS_WARN_IF(!startOfRange.IsSet()) ||
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NS_WARN_IF(!endOfRange.IsSet())) {
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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 (startOfRange.GetContainer() == endOfRange.GetContainer() &&
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startOfRange.IsInTextNode()) {
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nsresult rv = SetInlinePropertyOnTextNode(
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MOZ_KnownLive(*startOfRange.GetContainerAsText()),
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startOfRange.Offset(), endOfRange.Offset(), aProperty, aAttribute,
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aAttributeValue);
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if (NS_FAILED(rv)) {
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NS_WARNING("HTMLEditor::SetInlinePropertyOnTextNode() failed");
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return rv;
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}
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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> arrayOfContents;
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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(subtreeIter.Init(range))) {
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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() && EditorUtils::IsEditableContent(
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*node->AsContent(), EditorType::HTML)) {
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arrayOfContents.AppendElement(*node->AsContent());
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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 (startOfRange.IsInTextNode() &&
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EditorUtils::IsEditableContent(*startOfRange.ContainerAsText(),
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EditorType::HTML)) {
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nsresult rv = SetInlinePropertyOnTextNode(
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MOZ_KnownLive(*startOfRange.GetContainerAsText()),
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startOfRange.Offset(), startOfRange.GetContainer()->Length(),
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aProperty, aAttribute, aAttributeValue);
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if (NS_FAILED(rv)) {
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NS_WARNING("HTMLEditor::SetInlinePropertyOnTextNode() failed");
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return rv;
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}
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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 : arrayOfContents) {
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// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
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// keep it alive.
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nsresult rv = SetInlinePropertyOnNode(
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MOZ_KnownLive(*content), aProperty, aAttribute, aAttributeValue);
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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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if (NS_FAILED(rv)) {
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NS_WARNING("HTMLEditor::SetInlinePropertyOnNode() failed");
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return rv;
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}
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}
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// Finally, if end node is a text node, apply new style to a part ot it.
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if (endOfRange.IsInTextNode() &&
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EditorUtils::IsEditableContent(*endOfRange.GetContainerAsText(),
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EditorType::HTML)) {
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nsresult rv = SetInlinePropertyOnTextNode(
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MOZ_KnownLive(*endOfRange.GetContainerAsText()), 0,
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endOfRange.Offset(), aProperty, aAttribute, aAttributeValue);
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if (NS_FAILED(rv)) {
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NS_WARNING("HTMLEditor::SetInlinePropertyOnNode() failed");
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return rv;
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}
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}
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}
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}
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// Restoring `Selection` may have destroyed us.
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return NS_WARN_IF(Destroyed()) ? NS_ERROR_EDITOR_DESTROYED : NS_OK;
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}
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// Helper function for SetInlinePropertyOn*: is aNode a simple old <b>, <font>,
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// <span style="">, etc. that we can reuse instead of creating a new one?
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bool HTMLEditor::IsSimpleModifiableNode(nsIContent* aContent, nsAtom* aProperty,
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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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RefPtr<dom::Element> element = Element::FromNodeOrNull(aContent);
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if (NS_WARN_IF(!element)) {
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return false;
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}
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// First check for <b>, <i>, etc.
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if (element->IsHTMLElement(aProperty) && !element->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 (!element->GetAttrCount() &&
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((aProperty == nsGkAtoms::b &&
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element->IsHTMLElement(nsGkAtoms::strong)) ||
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(aProperty == nsGkAtoms::i && element->IsHTMLElement(nsGkAtoms::em)) ||
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(aProperty == nsGkAtoms::strike &&
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element->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 (element->IsHTMLElement(aProperty) &&
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IsOnlyAttribute(element, aAttribute) &&
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element->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(element, aProperty, aAttribute) ||
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!element->IsHTMLElement(nsGkAtoms::span) ||
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element->GetAttrCount() != 1 ||
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!element->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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mCSSEditUtils->SetCSSEquivalentToHTMLStyle(newSpanElement, aProperty,
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aAttribute, aValue,
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/*suppress transaction*/ true);
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return CSSEditUtils::DoElementsHaveSameStyle(*newSpanElement, *element);
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}
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nsresult HTMLEditor::SetInlinePropertyOnTextNode(
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Text& aText, uint32_t aStartOffset, uint32_t aEndOffset, nsAtom& aProperty,
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nsAtom* aAttribute, const nsAString& aValue) {
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if (!aText.GetParentNode() ||
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!HTMLEditUtils::CanNodeContain(*aText.GetParentNode(), aProperty)) {
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return NS_OK;
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}
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// Don't need to do anything if no characters actually selected
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if (aStartOffset == aEndOffset) {
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return NS_OK;
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}
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// Don't need to do anything if property already set on node
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if (CSSEditUtils::IsCSSEditableProperty(&aText, &aProperty, aAttribute)) {
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// The HTML styles defined by aProperty/aAttribute have a CSS equivalence
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// for node; let's check if it carries those CSS styles
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nsAutoString value(aValue);
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if (CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
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aText, &aProperty, aAttribute, value)) {
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return NS_OK;
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}
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} else if (IsTextPropertySetByContent(&aText, &aProperty, aAttribute,
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&aValue)) {
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return NS_OK;
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}
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// Make the range an independent node.
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nsCOMPtr<nsIContent> textNodeForTheRange = &aText;
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// Split at the end of the range.
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EditorDOMPoint atEnd(textNodeForTheRange, aEndOffset);
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if (!atEnd.IsEndOfContainer()) {
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// We need to split off back of text node
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ErrorResult error;
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textNodeForTheRange = SplitNodeWithTransaction(atEnd, error);
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if (NS_WARN_IF(Destroyed())) {
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error = NS_ERROR_EDITOR_DESTROYED;
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}
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if (error.Failed()) {
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NS_WARNING_ASSERTION(error.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED),
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"HTMLEditor::SplitNodeWithTransaction() failed");
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return error.StealNSResult();
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}
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}
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// Split at the start of the range.
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EditorDOMPoint atStart(textNodeForTheRange, aStartOffset);
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if (!atStart.IsStartOfContainer()) {
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// We need to split off front of text node
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ErrorResult error;
|
|
nsCOMPtr<nsIContent> newLeftNode = SplitNodeWithTransaction(atStart, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error = NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (error.Failed()) {
|
|
NS_WARNING_ASSERTION(error.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED),
|
|
"HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
Unused << newLeftNode;
|
|
}
|
|
|
|
if (aAttribute) {
|
|
// Look for siblings that are correct type of node
|
|
nsCOMPtr<nsIContent> sibling = GetPriorHTMLSibling(textNodeForTheRange);
|
|
if (IsSimpleModifiableNode(sibling, &aProperty, aAttribute, &aValue)) {
|
|
// Previous sib is already right kind of inline node; slide this over
|
|
nsresult rv =
|
|
MoveNodeToEndWithTransaction(*textNodeForTheRange, *sibling);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
sibling = GetNextHTMLSibling(textNodeForTheRange);
|
|
if (IsSimpleModifiableNode(sibling, &aProperty, aAttribute, &aValue)) {
|
|
// Following sib is already right kind of inline node; slide this over
|
|
nsresult rv = MoveNodeWithTransaction(*textNodeForTheRange,
|
|
EditorDOMPoint(sibling, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Reparent the node inside inline node with appropriate {attribute,value}
|
|
nsresult rv = SetInlinePropertyOnNode(*textNodeForTheRange, aProperty,
|
|
aAttribute, aValue);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::SetInlinePropertyOnNode() failed");
|
|
return rv;
|
|
}
|
|
|
|
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()) {
|
|
nsTArray<OwningNonNull<nsIContent>> arrayOfNodes;
|
|
|
|
// Populate the list.
|
|
for (nsCOMPtr<nsIContent> child = aContent.GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
if (EditorUtils::IsEditableContent(*child, EditorType::HTML) &&
|
|
!IsEmptyTextNode(*child)) {
|
|
arrayOfNodes.AppendElement(*child);
|
|
}
|
|
}
|
|
|
|
// Then loop through the list, set the property on each node.
|
|
for (auto& node : arrayOfNodes) {
|
|
// MOZ_KnownLive because 'arrayOfNodes' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv = SetInlinePropertyOnNode(MOZ_KnownLive(node), aProperty,
|
|
aAttribute, aValue);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::SetInlinePropertyOnNode() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// First check if there's an adjacent sibling we can put our node into.
|
|
nsCOMPtr<nsIContent> previousSibling = GetPriorHTMLSibling(&aContent);
|
|
nsCOMPtr<nsIContent> nextSibling = GetNextHTMLSibling(&aContent);
|
|
if (IsSimpleModifiableNode(previousSibling, &aProperty, aAttribute,
|
|
&aValue)) {
|
|
nsresult rv = MoveNodeToEndWithTransaction(aContent, *previousSibling);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
if (!IsSimpleModifiableNode(nextSibling, &aProperty, aAttribute, &aValue)) {
|
|
return NS_OK;
|
|
}
|
|
rv = JoinNodesWithTransaction(*previousSibling, *nextSibling);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::JoinNodesWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
if (IsSimpleModifiableNode(nextSibling, &aProperty, aAttribute, &aValue)) {
|
|
nsresult rv =
|
|
MoveNodeWithTransaction(aContent, EditorDOMPoint(nextSibling, 0));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Don't need to do anything if property already set on node
|
|
if (CSSEditUtils::IsCSSEditableProperty(&aContent, &aProperty, aAttribute)) {
|
|
nsAutoString value(aValue);
|
|
if (CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
aContent, &aProperty, aAttribute, value)) {
|
|
return NS_OK;
|
|
}
|
|
} else if (IsTextPropertySetByContent(&aContent, &aProperty, aAttribute,
|
|
&aValue)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
bool useCSS = (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 (useCSS) {
|
|
RefPtr<Element> spanElement;
|
|
// 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 {
|
|
spanElement = InsertContainerWithTransaction(aContent, *nsGkAtoms::span);
|
|
if (!spanElement) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertContainerWithTransaction(nsGkAtoms::span) "
|
|
"failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// Add the CSS styles corresponding to the HTML style request
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(spanElement, &aProperty,
|
|
aAttribute, &aValue, false);
|
|
return NS_OK;
|
|
}
|
|
|
|
// is it already the right kind of node, but with wrong attribute?
|
|
if (aContent.IsHTMLElement(&aProperty)) {
|
|
if (NS_WARN_IF(!aAttribute)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
// Just set the attribute on it.
|
|
nsresult rv = SetAttributeWithTransaction(
|
|
MOZ_KnownLive(*aContent.AsElement()), *aAttribute, aValue);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::SetAttributeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
// ok, chuck it in its very own container
|
|
RefPtr<Element> newContainerElement = InsertContainerWithTransaction(
|
|
aContent, aProperty, aAttribute ? *aAttribute : *nsGkAtoms::_empty,
|
|
aValue);
|
|
NS_WARNING_ASSERTION(newContainerElement,
|
|
"HTMLEditor::InsertContainerWithTransaction() failed");
|
|
return newContainerElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult HTMLEditor::SetInlinePropertyOnNode(nsIContent& aNode,
|
|
nsAtom& aProperty,
|
|
nsAtom* aAttribute,
|
|
const nsAString& aValue) {
|
|
nsCOMPtr<nsIContent> previousSibling = aNode.GetPreviousSibling(),
|
|
nextSibling = aNode.GetNextSibling();
|
|
if (NS_WARN_IF(!aNode.GetParentNode())) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
OwningNonNull<nsINode> parent = *aNode.GetParentNode();
|
|
if (aNode.IsElement()) {
|
|
nsresult rv = RemoveStyleInside(MOZ_KnownLive(*aNode.AsElement()),
|
|
&aProperty, aAttribute);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveStyleInside() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
if (aNode.GetParentNode()) {
|
|
// The node is still where it was
|
|
nsresult rv =
|
|
SetInlinePropertyOnNodeImpl(aNode, aProperty, aAttribute, aValue);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::SetInlinePropertyOnNodeImpl() failed");
|
|
return rv;
|
|
}
|
|
|
|
// 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 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.
|
|
nsresult rv = SetInlinePropertyOnNodeImpl(MOZ_KnownLive(content), aProperty,
|
|
aAttribute, aValue);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::SetInlinePropertyOnNodeImpl() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
SplitRangeOffResult HTMLEditor::SplitAncestorStyledInlineElementsAtRangeEdges(
|
|
const EditorDOMPoint& aStartOfRange, const EditorDOMPoint& aEndOfRange,
|
|
nsAtom* aProperty, nsAtom* aAttribute) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (NS_WARN_IF(!aStartOfRange.IsSet()) || NS_WARN_IF(!aEndOfRange.IsSet())) {
|
|
return SplitRangeOffResult(NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
EditorDOMPoint startOfRange(aStartOfRange);
|
|
EditorDOMPoint endOfRange(aEndOfRange);
|
|
|
|
// split any matching style nodes above the start of range
|
|
SplitNodeResult resultAtStart(NS_ERROR_NOT_INITIALIZED);
|
|
{
|
|
AutoTrackDOMPoint tracker(RangeUpdaterRef(), &endOfRange);
|
|
resultAtStart = SplitAncestorStyledInlineElementsAt(startOfRange, aProperty,
|
|
aAttribute);
|
|
if (resultAtStart.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitAncestorStyledInlineElementsAt() failed");
|
|
return SplitRangeOffResult(resultAtStart.Rv());
|
|
}
|
|
if (resultAtStart.Handled()) {
|
|
startOfRange = resultAtStart.SplitPoint();
|
|
if (!startOfRange.IsSet()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitAncestorStyledInlineElementsAt() didn't return "
|
|
"split point");
|
|
return SplitRangeOffResult(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
|
|
// second verse, same as the first...
|
|
SplitNodeResult resultAtEnd(NS_ERROR_NOT_INITIALIZED);
|
|
{
|
|
AutoTrackDOMPoint tracker(RangeUpdaterRef(), &startOfRange);
|
|
resultAtEnd =
|
|
SplitAncestorStyledInlineElementsAt(endOfRange, aProperty, aAttribute);
|
|
if (resultAtEnd.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitAncestorStyledInlineElementsAt() failed");
|
|
return SplitRangeOffResult(resultAtEnd.Rv());
|
|
}
|
|
if (resultAtEnd.Handled()) {
|
|
endOfRange = resultAtEnd.SplitPoint();
|
|
if (!endOfRange.IsSet()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitAncestorStyledInlineElementsAt() didn't return "
|
|
"split point");
|
|
return SplitRangeOffResult(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
|
|
return SplitRangeOffResult(startOfRange, resultAtStart, endOfRange,
|
|
resultAtEnd);
|
|
}
|
|
|
|
SplitNodeResult HTMLEditor::SplitAncestorStyledInlineElementsAt(
|
|
const EditorDOMPoint& aPointToSplit, nsAtom* aProperty,
|
|
nsAtom* aAttribute) {
|
|
if (NS_WARN_IF(!aPointToSplit.IsSet()) ||
|
|
NS_WARN_IF(!aPointToSplit.GetContainerAsContent())) {
|
|
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(aPointToSplit);
|
|
MOZ_ASSERT(!result.Handled());
|
|
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;
|
|
isSetByCSS = CSSEditUtils::IsSpecifiedCSSEquivalentToHTMLInlineStyleSet(
|
|
*content, aProperty, aAttribute, firstValue);
|
|
}
|
|
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.
|
|
SplitNodeResult splitNodeResult = SplitNodeDeepWithTransaction(
|
|
MOZ_KnownLive(content), result.SplitPoint(),
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeDeepWithTransaction() failed");
|
|
return splitNodeResult;
|
|
}
|
|
MOZ_ASSERT(splitNodeResult.Handled());
|
|
// Mark the final result as handled forcibly.
|
|
result = SplitNodeResult(splitNodeResult.GetPreviousNode(),
|
|
splitNodeResult.GetNextNode());
|
|
MOZ_ASSERT(result.Handled());
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
EditResult HTMLEditor::ClearStyleAt(const EditorDOMPoint& aPoint,
|
|
nsAtom* aProperty, nsAtom* aAttribute) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (NS_WARN_IF(!aPoint.IsSet())) {
|
|
return EditResult(NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
// 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>`.
|
|
SplitNodeResult splitResult =
|
|
SplitAncestorStyledInlineElementsAt(aPoint, aProperty, aAttribute);
|
|
if (splitResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitAncestorStyledInlineElementsAt() failed");
|
|
return EditResult(splitResult.Rv());
|
|
}
|
|
|
|
// 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 EditResult(aPoint);
|
|
}
|
|
|
|
// 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.
|
|
if (splitResult.GetPreviousNode() &&
|
|
IsEmptyNode(*splitResult.GetPreviousNode(), false, true)) {
|
|
// Delete previous node if it's empty.
|
|
nsresult rv = DeleteNodeWithTransaction(
|
|
MOZ_KnownLive(*splitResult.GetPreviousNode()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return EditResult(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.GetNextNode()) {
|
|
MOZ_ASSERT(IsCSSEnabled());
|
|
return EditResult(aPoint);
|
|
}
|
|
|
|
// 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::GetFirstLeafChild(
|
|
*splitResult.GetNextNode(), ChildBlockBoundary::Ignore);
|
|
EditorDOMPoint atStartOfNextNode(firstLeafChildOfNextNode
|
|
? firstLeafChildOfNextNode
|
|
: splitResult.GetNextNode(),
|
|
0);
|
|
RefPtr<HTMLBRElement> brElement;
|
|
// But don't try to split non-containers like `<br>`, `<hr>` and `<img>`
|
|
// element.
|
|
if (!atStartOfNextNode.IsInContentNode() ||
|
|
!HTMLEditUtils::IsContainerNode(
|
|
*atStartOfNextNode.ContainerAsContent())) {
|
|
// If it's a `<br>` element, let's move it into new node later.
|
|
brElement = HTMLBRElement::FromNode(atStartOfNextNode.GetContainer());
|
|
if (!atStartOfNextNode.GetContainerParentAsContent()) {
|
|
NS_WARNING("atStartOfNextNode was in an orphan node");
|
|
return EditResult(NS_ERROR_FAILURE);
|
|
}
|
|
atStartOfNextNode.Set(atStartOfNextNode.GetContainerParent(), 0);
|
|
}
|
|
SplitNodeResult splitResultAtStartOfNextNode =
|
|
SplitAncestorStyledInlineElementsAt(atStartOfNextNode, aProperty,
|
|
aAttribute);
|
|
if (splitResultAtStartOfNextNode.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitAncestorStyledInlineElementsAt() failed");
|
|
return EditResult(splitResultAtStartOfNextNode.Rv());
|
|
}
|
|
|
|
// Let's remove the next node if it becomes empty by splitting it.
|
|
// XXX Is this possible case without mutation event listener?
|
|
if (splitResultAtStartOfNextNode.Handled() &&
|
|
splitResultAtStartOfNextNode.GetNextNode() &&
|
|
IsEmptyNode(*splitResultAtStartOfNextNode.GetNextNode(), false, true)) {
|
|
// Delete next node if it's empty.
|
|
nsresult rv = DeleteNodeWithTransaction(
|
|
MOZ_KnownLive(*splitResultAtStartOfNextNode.GetNextNode()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return EditResult(rv);
|
|
}
|
|
}
|
|
|
|
// 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.GetPreviousNode()) {
|
|
// XXX This is really odd, but we retrun this value...
|
|
return EditResult(
|
|
EditorDOMPoint(splitResult.SplitPoint().GetContainer(),
|
|
splitResultAtStartOfNextNode.SplitPoint().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::GetFirstLeafChild(
|
|
*splitResultAtStartOfNextNode.GetPreviousNode(),
|
|
ChildBlockBoundary::Ignore);
|
|
EditorDOMPoint pointToPutCaret(
|
|
firstLeafChildOfPreviousNode
|
|
? firstLeafChildOfPreviousNode
|
|
: splitResultAtStartOfNextNode.GetPreviousNode(),
|
|
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) {
|
|
nsresult rv = MoveNodeWithTransaction(*brElement, pointToPutCaret);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return EditResult(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 (splitResultAtStartOfNextNode.GetPreviousNode()->IsElement()) {
|
|
// 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);
|
|
nsresult rv = RemoveStyleInside(
|
|
MOZ_KnownLive(
|
|
*splitResultAtStartOfNextNode.GetPreviousNode()->AsElement()),
|
|
aProperty, aAttribute);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveStyleInside() failed");
|
|
return EditResult(rv);
|
|
}
|
|
}
|
|
return EditResult(pointToPutCaret);
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveStyleInside(Element& aElement, nsAtom* aProperty,
|
|
nsAtom* aAttribute) {
|
|
// First, handle all descendants.
|
|
RefPtr<nsIContent> child = aElement.GetFirstChild();
|
|
while (child) {
|
|
// cache next sibling since we might remove child
|
|
// XXX Well, the next sibling is moved from `aElement`, shouldn't we skip
|
|
// it here?
|
|
nsCOMPtr<nsIContent> nextSibling = child->GetNextSibling();
|
|
if (child->IsElement()) {
|
|
nsresult rv = RemoveStyleInside(MOZ_KnownLive(*child->AsElement()),
|
|
aProperty, aAttribute);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveStyleInside() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
child = ToRefPtr(std::move(nextSibling));
|
|
}
|
|
|
|
// Next, remove the element or its attribute.
|
|
bool removeHTMLStyle = false;
|
|
if (aProperty) {
|
|
removeHTMLStyle =
|
|
// 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?
|
|
else if (EditorUtils::IsEditableContent(aElement, EditorType::HTML)) {
|
|
// or removing all styles and the element is a presentation element.
|
|
removeHTMLStyle = HTMLEditUtils::IsRemovableInlineStyleElement(aElement);
|
|
}
|
|
|
|
if (removeHTMLStyle) {
|
|
// 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 &&
|
|
(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.
|
|
RefPtr<Element> spanElement =
|
|
InsertContainerWithTransaction(aElement, *nsGkAtoms::span);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!spanElement) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertContainerWithTransaction(nsGkAtoms::span) "
|
|
"failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv = CloneAttributeWithTransaction(*nsGkAtoms::style,
|
|
*spanElement, aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::CloneAttributeWithTransaction(nsGkAtoms::style) "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
rv = CloneAttributeWithTransaction(*nsGkAtoms::_class, *spanElement,
|
|
aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::CloneAttributeWithTransaction(nsGkAtoms::_class) "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
}
|
|
nsresult rv = RemoveContainerWithTransaction(aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
// 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)) {
|
|
nsresult rv = RemoveContainerWithTransaction(aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
} else {
|
|
nsresult rv = RemoveAttributeWithTransaction(aElement, *aAttribute);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::RemoveAttributeWithTransaction() failed");
|
|
return 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) &&
|
|
CSSEditUtils::HaveSpecifiedCSSEquivalentStyles(aElement, aProperty,
|
|
aAttribute)) {
|
|
// If aElement has CSS declaration of the given style, remove it.
|
|
DebugOnly<nsresult> rvIgnored =
|
|
mCSSEditUtils->RemoveCSSEquivalentToHTMLStyle(
|
|
&aElement, aProperty, aAttribute, nullptr, false);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rvIgnored),
|
|
"CSSEditUtils::RemoveCSSEquivalentToHTMLStyle() 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)) {
|
|
DebugOnly<nsresult> rvIgnored = RemoveContainerWithTransaction(aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rvIgnored),
|
|
"HTMLEditor::RemoveContainerWithTransaction() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
// Finally, remove aElement if it's a `<big>` or `<small>` element and
|
|
// we're removing `<font size>`.
|
|
if (aProperty == nsGkAtoms::font && aAttribute == nsGkAtoms::size &&
|
|
aElement.IsAnyOfHTMLElements(nsGkAtoms::big, nsGkAtoms::small)) {
|
|
nsresult rv = RemoveContainerWithTransaction(aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
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, NS_LITERAL_STRING("_moz"))) {
|
|
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.GetContainerAsContent()) {
|
|
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.GetContainerAsContent()) {
|
|
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.GetContainerAsContent()) {
|
|
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.GetContainerAsContent()) {
|
|
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 =
|
|
GetFirstEditableChild(*aPoint.GetContainer());
|
|
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 = GetLastEditableChild(*aPoint.GetContainer());
|
|
if (!lastEditableChild) {
|
|
return true;
|
|
}
|
|
return EditorRawDOMPoint(lastEditableChild).Offset() < aPoint.Offset();
|
|
}
|
|
|
|
nsresult HTMLEditor::GetInlinePropertyBase(nsAtom& 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 = SelectionRefPtr()->IsCollapsed();
|
|
RefPtr<nsRange> range = SelectionRefPtr()->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;
|
|
}
|
|
bool isSet, theSetting;
|
|
nsString tOutString;
|
|
if (aAttribute) {
|
|
mTypeInState->GetTypingState(isSet, theSetting, &aHTMLProperty,
|
|
aAttribute, &tOutString);
|
|
if (outValue) {
|
|
outValue->Assign(tOutString);
|
|
}
|
|
} else {
|
|
mTypeInState->GetTypingState(isSet, theSetting, &aHTMLProperty);
|
|
}
|
|
if (isSet) {
|
|
*aFirst = *aAny = *aAll = theSetting;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (collapsedNode->IsContent() &&
|
|
CSSEditUtils::IsCSSEditableProperty(collapsedNode, &aHTMLProperty,
|
|
aAttribute)) {
|
|
if (aValue) {
|
|
tOutString.Assign(*aValue);
|
|
}
|
|
*aFirst = *aAny = *aAll =
|
|
CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
MOZ_KnownLive(*collapsedNode->AsContent()), &aHTMLProperty,
|
|
aAttribute, tOutString);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (outValue) {
|
|
outValue->Assign(tOutString);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
isSet = IsTextPropertySetByContent(collapsedNode, &aHTMLProperty,
|
|
aAttribute, aValue, outValue);
|
|
*aFirst = *aAny = *aAll = isSet;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Non-collapsed selection
|
|
|
|
nsAutoString firstValue, theValue;
|
|
|
|
nsCOMPtr<nsINode> endNode = range->GetEndContainer();
|
|
int32_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) ||
|
|
IsEmptyTextNode(*content))) {
|
|
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);
|
|
}
|
|
isSet = CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*content, &aHTMLProperty, aAttribute, firstValue);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
} else {
|
|
isSet = IsTextPropertySetByContent(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);
|
|
}
|
|
isSet = CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*content, &aHTMLProperty, aAttribute, theValue);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
} else {
|
|
isSet = IsTextPropertySetByContent(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;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLEditor::GetInlineProperty(const nsAString& aHTMLProperty,
|
|
const nsAString& aAttribute,
|
|
const nsAString& aValue,
|
|
bool* aFirst, bool* aAny,
|
|
bool* aAll) {
|
|
RefPtr<nsAtom> property = NS_Atomize(aHTMLProperty);
|
|
nsStaticAtom* attribute = EditorUtils::GetAttributeAtom(aAttribute);
|
|
nsresult rv = GetInlineProperty(property, MOZ_KnownLive(attribute), aValue,
|
|
aFirst, aAny, aAll);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::GetInlineProperty() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::GetInlineProperty(nsAtom* aHTMLProperty,
|
|
nsAtom* aAttribute,
|
|
const nsAString& aValue, bool* aFirst,
|
|
bool* aAny, bool* aAll) const {
|
|
if (NS_WARN_IF(!aHTMLProperty) || 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) {
|
|
RefPtr<nsAtom> property = NS_Atomize(aHTMLProperty);
|
|
nsStaticAtom* attribute = EditorUtils::GetAttributeAtom(aAttribute);
|
|
nsresult rv = GetInlinePropertyWithAttrValue(
|
|
property, MOZ_KnownLive(attribute), aValue, aFirst, aAny, aAll, outValue);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::GetInlinePropertyWithAttrValue() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::GetInlinePropertyWithAttrValue(
|
|
nsAtom* aHTMLProperty, nsAtom* aAttribute, const nsAString& aValue,
|
|
bool* aFirst, bool* aAny, bool* aAll, nsAString& outValue) {
|
|
if (NS_WARN_IF(!aHTMLProperty) || 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);
|
|
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");
|
|
|
|
rv =
|
|
RemoveInlinePropertyInternal(nullptr, nullptr, RemoveRelatedElements::No);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveInlinePropertyInternal(nullptr, "
|
|
"nullptr, RemoveRelatedElements::No) 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(!EmptyString().IsVoid());
|
|
editActionData.SetData(EmptyString());
|
|
break;
|
|
case EditAction::eRemoveColorProperty:
|
|
case EditAction::eRemoveBackgroundColorPropertyInline:
|
|
editActionData.SetColorData(EmptyString());
|
|
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);
|
|
}
|
|
|
|
rv = RemoveInlinePropertyInternal(&aHTMLProperty, aAttribute,
|
|
RemoveRelatedElements::Yes);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveInlinePropertyInternal("
|
|
"RemoveRelatedElements::Yes) 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(!EmptyString().IsVoid());
|
|
editActionData.SetData(EmptyString());
|
|
break;
|
|
case EditAction::eRemoveColorProperty:
|
|
case EditAction::eRemoveBackgroundColorPropertyInline:
|
|
editActionData.SetColorData(EmptyString());
|
|
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);
|
|
}
|
|
|
|
rv = RemoveInlinePropertyInternal(MOZ_KnownLive(property),
|
|
MOZ_KnownLive(attribute),
|
|
RemoveRelatedElements::No);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveInlinePropertyInternal("
|
|
"RemoveRelatedElements::No) failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveInlinePropertyInternal(
|
|
nsStaticAtom* aProperty, nsStaticAtom* aAttribute,
|
|
RemoveRelatedElements aRemoveRelatedElements) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aAttribute != nsGkAtoms::_empty);
|
|
|
|
if (NS_WARN_IF(!mInitSucceeded)) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
DebugOnly<nsresult> rvIgnored = CommitComposition();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"EditorBase::CommitComposition() failed, but ignored");
|
|
|
|
// Also remove equivalent properties (bug 317093)
|
|
struct HTMLStyle final {
|
|
// HTML tag name or nsGkAtoms::href or nsGkAtoms::name.
|
|
nsStaticAtom* mProperty = nullptr;
|
|
// HTML attribute like nsGkAtom::color for nsGkAtoms::font.
|
|
nsStaticAtom* mAttribute = nullptr;
|
|
|
|
explicit HTMLStyle(nsStaticAtom* aProperty,
|
|
nsStaticAtom* aAttribute = nullptr)
|
|
: mProperty(aProperty), mAttribute(aAttribute) {}
|
|
};
|
|
AutoTArray<HTMLStyle, 3> removeStyles;
|
|
if (aRemoveRelatedElements == RemoveRelatedElements::Yes) {
|
|
if (aProperty == nsGkAtoms::b) {
|
|
removeStyles.AppendElement(HTMLStyle(nsGkAtoms::strong));
|
|
} else if (aProperty == nsGkAtoms::i) {
|
|
removeStyles.AppendElement(HTMLStyle(nsGkAtoms::em));
|
|
} else if (aProperty == nsGkAtoms::strike) {
|
|
removeStyles.AppendElement(HTMLStyle(nsGkAtoms::s));
|
|
} else if (aProperty == nsGkAtoms::font) {
|
|
if (aAttribute == nsGkAtoms::size) {
|
|
removeStyles.AppendElement(HTMLStyle(nsGkAtoms::big));
|
|
removeStyles.AppendElement(HTMLStyle(nsGkAtoms::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 (aAttribute == nsGkAtoms::face && !GetEditActionPrincipal()) {
|
|
removeStyles.AppendElement(HTMLStyle(nsGkAtoms::tt));
|
|
}
|
|
}
|
|
}
|
|
removeStyles.AppendElement(HTMLStyle(aProperty, aAttribute));
|
|
|
|
if (SelectionRefPtr()->IsCollapsed()) {
|
|
// Manipulating text attributes on a collapsed selection only sets state
|
|
// for the next text insertion
|
|
if (removeStyles[0].mProperty) {
|
|
for (HTMLStyle& style : removeStyles) {
|
|
MOZ_ASSERT(style.mProperty);
|
|
if (style.mProperty == nsGkAtoms::href ||
|
|
style.mProperty == nsGkAtoms::name) {
|
|
mTypeInState->ClearProp(nsGkAtoms::a, nullptr);
|
|
} else {
|
|
mTypeInState->ClearProp(style.mProperty, style.mAttribute);
|
|
}
|
|
}
|
|
} else {
|
|
mTypeInState->ClearAllProps();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// XXX Shouldn't we quit before calling `CommitComposition()`?
|
|
if (IsPlaintextEditor()) {
|
|
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);
|
|
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");
|
|
|
|
{
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
for (HTMLStyle& style : removeStyles) {
|
|
// Loop through the ranges in the selection.
|
|
// XXX Although `Selection` will be restored by AutoSelectionRestorer,
|
|
// AutoRangeArray just grabs the ranges in `Selection`. Therefore,
|
|
// modifying each range may notify selection listener. So perhaps,
|
|
// we should clone each range here instead.
|
|
AutoRangeArray arrayOfRanges(SelectionRefPtr());
|
|
for (auto& range : arrayOfRanges.mRanges) {
|
|
if (style.mProperty == 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(
|
|
EditorDOMPoint(range->StartRef()),
|
|
EditorDOMPoint(range->EndRef()), MOZ_KnownLive(style.mProperty),
|
|
MOZ_KnownLive(style.mAttribute));
|
|
if (splitRangeOffResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitAncestorStyledInlineElementsAtRangeEdges() "
|
|
"failed");
|
|
return splitRangeOffResult.Rv();
|
|
}
|
|
|
|
// 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 EditorDOMPoint& startOfRange(
|
|
splitRangeOffResult.SplitPointAtStart());
|
|
const EditorDOMPoint& endOfRange(splitRangeOffResult.SplitPointAtEnd());
|
|
if (NS_WARN_IF(!startOfRange.IsSet()) ||
|
|
NS_WARN_IF(!endOfRange.IsSet())) {
|
|
continue;
|
|
}
|
|
|
|
nsresult rv = range->SetStartAndEnd(startOfRange.ToRawRangeBoundary(),
|
|
endOfRange.ToRawRangeBoundary());
|
|
// Note that modifying a range in `Selection` may run script so that
|
|
// we might have been destroyed here.
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("nsRange::SetStartAndEnd() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Collect editable nodes which are entirely contained in the range.
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
if (startOfRange.GetContainer() == endOfRange.GetContainer() &&
|
|
startOfRange.IsInTextNode()) {
|
|
if (!EditorUtils::IsEditableContent(*startOfRange.ContainerAsText(),
|
|
EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
arrayOfContents.AppendElement(*startOfRange.ContainerAsText());
|
|
} else if (startOfRange.IsInTextNode() && endOfRange.IsInTextNode() &&
|
|
startOfRange.GetContainer()->GetNextSibling() ==
|
|
endOfRange.GetContainer()) {
|
|
if (EditorUtils::IsEditableContent(*startOfRange.ContainerAsText(),
|
|
EditorType::HTML)) {
|
|
arrayOfContents.AppendElement(*startOfRange.ContainerAsText());
|
|
}
|
|
if (EditorUtils::IsEditableContent(*endOfRange.ContainerAsText(),
|
|
EditorType::HTML)) {
|
|
arrayOfContents.AppendElement(*endOfRange.ContainerAsText());
|
|
}
|
|
if (arrayOfContents.IsEmpty()) {
|
|
continue;
|
|
}
|
|
} else {
|
|
// Append first node if it's a text node but selected not entirely.
|
|
if (startOfRange.IsInTextNode() &&
|
|
!startOfRange.IsStartOfContainer() &&
|
|
EditorUtils::IsEditableContent(*startOfRange.ContainerAsText(),
|
|
EditorType::HTML)) {
|
|
arrayOfContents.AppendElement(*startOfRange.ContainerAsText());
|
|
}
|
|
// Append all entirely selected nodes.
|
|
ContentSubtreeIterator subtreeIter;
|
|
if (NS_SUCCEEDED(subtreeIter.Init(range))) {
|
|
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)) {
|
|
arrayOfContents.AppendElement(*node->AsContent());
|
|
}
|
|
}
|
|
}
|
|
// Append last node if it's a text node but selected not entirely.
|
|
if (startOfRange.GetContainer() != endOfRange.GetContainer() &&
|
|
endOfRange.IsInTextNode() && !endOfRange.IsEndOfContainer() &&
|
|
EditorUtils::IsEditableContent(*endOfRange.ContainerAsText(),
|
|
EditorType::HTML)) {
|
|
arrayOfContents.AppendElement(*endOfRange.ContainerAsText());
|
|
}
|
|
}
|
|
|
|
for (OwningNonNull<nsIContent>& content : arrayOfContents) {
|
|
if (content->IsElement()) {
|
|
nsresult rv =
|
|
RemoveStyleInside(MOZ_KnownLive(*content->AsElement()),
|
|
MOZ_KnownLive(style.mProperty),
|
|
MOZ_KnownLive(style.mAttribute));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveStyleInside() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
bool isRemovable = IsRemovableParentStyleWithNewSpanElement(
|
|
MOZ_KnownLive(content), MOZ_KnownLive(style.mProperty),
|
|
MOZ_KnownLive(style.mAttribute));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!isRemovable) {
|
|
continue;
|
|
}
|
|
|
|
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.
|
|
DebugOnly<nsresult> rvIgnored = SetInlinePropertyOnNode(
|
|
MOZ_KnownLive(content), MOZ_KnownLive(*style.mProperty),
|
|
MOZ_KnownLive(style.mAttribute),
|
|
NS_LITERAL_STRING("-moz-editor-invert-value"));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rvIgnored),
|
|
"HTMLEditor::SetInlinePropertyOnNode(-moz-editor-invert-value) "
|
|
"failed, but ignored");
|
|
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 == startOfRange.GetContainer()
|
|
? startOfRange.Offset()
|
|
: 0;
|
|
uint32_t endOffset = content == endOfRange.GetContainer()
|
|
? endOfRange.Offset()
|
|
: content->Length();
|
|
nsresult rv = SetInlinePropertyOnTextNode(
|
|
MOZ_KnownLive(*content->AsText()), startOffset, endOffset,
|
|
MOZ_KnownLive(*style.mProperty), MOZ_KnownLive(style.mAttribute),
|
|
NS_LITERAL_STRING("-moz-editor-invert-value"));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SetInlinePropertyOnTextNode(-moz-editor-invert-"
|
|
"value) failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// For avoiding unnecessary loop cost, check whether the style is
|
|
// invertible first.
|
|
if (style.mProperty &&
|
|
CSSEditUtils::IsCSSInvertible(*style.mProperty, style.mAttribute)) {
|
|
// Finally, we should remove the style from all leaf text nodes if
|
|
// they still have the style.
|
|
AutoTArray<OwningNonNull<Text>, 32> leafTextNodes;
|
|
for (OwningNonNull<nsIContent>& content : arrayOfContents) {
|
|
if (content->IsElement()) {
|
|
CollectEditableLeafTextNodes(*content->AsElement(),
|
|
leafTextNodes);
|
|
}
|
|
}
|
|
for (OwningNonNull<Text>& textNode : leafTextNodes) {
|
|
bool isRemovable = IsRemovableParentStyleWithNewSpanElement(
|
|
MOZ_KnownLive(textNode), MOZ_KnownLive(style.mProperty),
|
|
MOZ_KnownLive(style.mAttribute));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!isRemovable) {
|
|
continue;
|
|
}
|
|
// MOZ_KnownLive because 'leafTextNodes' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv = SetInlinePropertyOnTextNode(
|
|
MOZ_KnownLive(textNode), 0, textNode->TextLength(),
|
|
MOZ_KnownLive(*style.mProperty),
|
|
MOZ_KnownLive(style.mAttribute),
|
|
NS_LITERAL_STRING("-moz-editor-invert-value"));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SetInlinePropertyOnTextNode(-moz-editor-invert-"
|
|
"value) failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
} // for-loop of selection ranges
|
|
} // for-loop of styles
|
|
} // AutoSelectionRestorer and AutoTransactionsConserveSelection
|
|
|
|
// Restoring `Selection` may cause destroying us.
|
|
return NS_WARN_IF(Destroyed()) ? NS_ERROR_EDITOR_DESTROYED : NS_OK;
|
|
}
|
|
|
|
bool 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;
|
|
bool isSet = CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
aContent, aHTMLProperty, aAttribute, emptyString);
|
|
return NS_WARN_IF(Destroyed()) ? false : isSet;
|
|
}
|
|
|
|
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 = RelativeFontChange(FontSize::incr);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RelativeFontChange(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 = RelativeFontChange(FontSize::decr);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RelativeFontChange(FontSize::decr) failed");
|
|
return EditorBase::ToGenericNSResult(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::RelativeFontChange(FontSize aDir) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
DebugOnly<nsresult> rvIgnored = CommitComposition();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"EditorBase::CommitComposition() failed, but ignored");
|
|
|
|
// If selection is collapsed, set typing state
|
|
if (SelectionRefPtr()->IsCollapsed()) {
|
|
nsAtom& atom = aDir == FontSize::incr ? *nsGkAtoms::big : *nsGkAtoms::small;
|
|
|
|
// Let's see in what kind of element the selection is
|
|
if (NS_WARN_IF(!SelectionRefPtr()->RangeCount())) {
|
|
return NS_OK;
|
|
}
|
|
RefPtr<const nsRange> firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange) ||
|
|
NS_WARN_IF(!firstRange->GetStartContainer())) {
|
|
return NS_OK;
|
|
}
|
|
OwningNonNull<nsINode> selectedNode = *firstRange->GetStartContainer();
|
|
if (selectedNode->IsText()) {
|
|
if (NS_WARN_IF(!selectedNode->GetParentNode())) {
|
|
return NS_OK;
|
|
}
|
|
selectedNode = *selectedNode->GetParentNode();
|
|
}
|
|
if (!HTMLEditUtils::CanNodeContain(selectedNode, atom)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Manipulating text attributes on a collapsed selection only sets state
|
|
// for the next text insertion
|
|
mTypeInState->SetProp(&atom, nullptr, EmptyString());
|
|
return NS_OK;
|
|
}
|
|
|
|
// Wrap with txn batching, rules sniffing, and selection preservation code
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this);
|
|
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");
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
// Loop through the ranges in the selection
|
|
AutoRangeArray arrayOfRanges(SelectionRefPtr());
|
|
for (auto& range : arrayOfRanges.mRanges) {
|
|
// Adjust range to include any ancestors with entirely selected children
|
|
nsresult rv = PromoteInlineRange(*range);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::PromoteInlineRange() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Check for easy case: both range endpoints in same text node
|
|
nsCOMPtr<nsINode> startNode = range->GetStartContainer();
|
|
nsCOMPtr<nsINode> endNode = range->GetEndContainer();
|
|
MOZ_ASSERT(startNode);
|
|
MOZ_ASSERT(endNode);
|
|
if (startNode == endNode && startNode->IsText()) {
|
|
nsresult rv = RelativeFontChangeOnTextNode(
|
|
aDir, MOZ_KnownLive(*startNode->GetAsText()), range->StartOffset(),
|
|
range->EndOffset());
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeOnTextNode() failed");
|
|
return rv;
|
|
}
|
|
} else {
|
|
// 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))) {
|
|
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 'arrayOfContents' is guaranteed to keep it
|
|
// alive.
|
|
nsresult rv = RelativeFontChangeOnNode(
|
|
aDir == FontSize::incr ? +1 : -1, MOZ_KnownLive(content));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeOnNode() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
// 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 (startNode->IsText() && EditorUtils::IsEditableContent(
|
|
*startNode->AsText(), EditorType::HTML)) {
|
|
nsresult rv = RelativeFontChangeOnTextNode(
|
|
aDir, MOZ_KnownLive(*startNode->AsText()), range->StartOffset(),
|
|
startNode->Length());
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeOnTextNode() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
if (endNode->IsText() && EditorUtils::IsEditableContent(
|
|
*endNode->AsText(), EditorType::HTML)) {
|
|
nsresult rv = RelativeFontChangeOnTextNode(
|
|
aDir, MOZ_KnownLive(*endNode->AsText()), 0, range->EndOffset());
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeOnTextNode() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::RelativeFontChangeOnTextNode(FontSize aDir,
|
|
Text& aTextNode,
|
|
int32_t aStartOffset,
|
|
int32_t aEndOffset) {
|
|
// Don't need to do anything if no characters actually selected
|
|
if (aStartOffset == aEndOffset) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!aTextNode.GetParentNode() ||
|
|
!HTMLEditUtils::CanNodeContain(*aTextNode.GetParentNode(),
|
|
*nsGkAtoms::big)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// -1 is a magic value meaning to the end of node
|
|
if (aEndOffset == -1) {
|
|
aEndOffset = aTextNode.Length();
|
|
}
|
|
|
|
// Make the range an independent node.
|
|
nsCOMPtr<nsIContent> textNodeForTheRange = &aTextNode;
|
|
|
|
// Split at the end of the range.
|
|
EditorDOMPoint atEnd(textNodeForTheRange, aEndOffset);
|
|
if (!atEnd.IsEndOfContainer()) {
|
|
// We need to split off back of text node
|
|
ErrorResult error;
|
|
textNodeForTheRange = SplitNodeWithTransaction(atEnd, error);
|
|
if (error.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
}
|
|
|
|
// Split at the start of the range.
|
|
EditorDOMPoint atStart(textNodeForTheRange, aStartOffset);
|
|
if (!atStart.IsStartOfContainer()) {
|
|
// We need to split off front of text node
|
|
ErrorResult error;
|
|
nsCOMPtr<nsIContent> newLeftNode = SplitNodeWithTransaction(atStart, error);
|
|
if (error.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
Unused << newLeftNode;
|
|
}
|
|
|
|
// Look for siblings that are correct type of node
|
|
nsAtom* nodeType = aDir == FontSize::incr ? nsGkAtoms::big : nsGkAtoms::small;
|
|
nsCOMPtr<nsIContent> sibling = GetPriorHTMLSibling(textNodeForTheRange);
|
|
if (sibling && sibling->IsHTMLElement(nodeType)) {
|
|
// Previous sib is already right kind of inline node; slide this over
|
|
nsresult rv = MoveNodeToEndWithTransaction(*textNodeForTheRange, *sibling);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
sibling = GetNextHTMLSibling(textNodeForTheRange);
|
|
if (sibling && sibling->IsHTMLElement(nodeType)) {
|
|
// Following sib is already right kind of inline node; slide this over
|
|
nsresult rv = MoveNodeWithTransaction(*textNodeForTheRange,
|
|
EditorDOMPoint(sibling, 0));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Else reparent the node inside font node with appropriate relative size
|
|
RefPtr<Element> newElement = InsertContainerWithTransaction(
|
|
*textNodeForTheRange, MOZ_KnownLive(*nodeType));
|
|
NS_WARNING_ASSERTION(newElement,
|
|
"HTMLEditor::InsertContainerWithTransaction() failed");
|
|
return newElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult HTMLEditor::RelativeFontChangeHelper(int32_t aSizeChange,
|
|
nsINode* aNode) {
|
|
MOZ_ASSERT(aNode);
|
|
|
|
/* 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.
|
|
*/
|
|
|
|
// Can only change font size by + or - 1
|
|
if (aSizeChange != 1 && aSizeChange != -1) {
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
// If this is a font node with size, put big/small inside it.
|
|
if (aNode->IsHTMLElement(nsGkAtoms::font) &&
|
|
aNode->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::size)) {
|
|
// Cycle through children and adjust relative font size.
|
|
AutoTArray<nsCOMPtr<nsIContent>, 10> childList;
|
|
for (nsIContent* child = aNode->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
childList.AppendElement(child);
|
|
}
|
|
|
|
for (const auto& child : childList) {
|
|
// MOZ_KnownLive because 'childList' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv = RelativeFontChangeOnNode(aSizeChange, MOZ_KnownLive(child));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeOnNode() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// RelativeFontChangeOnNode already calls us recursively,
|
|
// so we don't need to check our children again.
|
|
return NS_OK;
|
|
}
|
|
|
|
// Otherwise cycle through the children.
|
|
AutoTArray<nsCOMPtr<nsIContent>, 10> childList;
|
|
for (nsIContent* child = aNode->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
childList.AppendElement(child);
|
|
}
|
|
|
|
for (const auto& child : childList) {
|
|
// MOZ_KnownLive because 'childList' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv = RelativeFontChangeHelper(aSizeChange, MOZ_KnownLive(child));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeHelper() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::RelativeFontChangeOnNode(int32_t aSizeChange,
|
|
nsIContent* aNode) {
|
|
MOZ_ASSERT(aNode);
|
|
// Can only change font size by + or - 1
|
|
if (aSizeChange != 1 && aSizeChange != -1) {
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
nsAtom* atom;
|
|
if (aSizeChange == 1) {
|
|
atom = nsGkAtoms::big;
|
|
} else {
|
|
atom = nsGkAtoms::small;
|
|
}
|
|
|
|
// Is it the opposite of what we want?
|
|
if ((aSizeChange == 1 && aNode->IsHTMLElement(nsGkAtoms::small)) ||
|
|
(aSizeChange == -1 && aNode->IsHTMLElement(nsGkAtoms::big))) {
|
|
// first populate any nested font tags that have the size attr set
|
|
nsresult rv = RelativeFontChangeHelper(aSizeChange, aNode);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeHelper() failed");
|
|
return rv;
|
|
}
|
|
// in that case, just remove this node and pull up the children
|
|
rv = RemoveContainerWithTransaction(MOZ_KnownLive(*aNode->AsElement()));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
// can it be put inside a "big" or "small"?
|
|
if (HTMLEditUtils::CanNodeContain(*atom, *aNode)) {
|
|
// first populate any nested font tags that have the size attr set
|
|
nsresult rv = RelativeFontChangeHelper(aSizeChange, aNode);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeHelper() failed");
|
|
return rv;
|
|
}
|
|
|
|
// ok, chuck it in.
|
|
// first look at siblings of aNode for matching bigs or smalls.
|
|
// if we find one, move aNode into it.
|
|
nsCOMPtr<nsIContent> sibling = GetPriorHTMLSibling(aNode);
|
|
if (sibling && sibling->IsHTMLElement(atom)) {
|
|
// previous sib is already right kind of inline node; slide this over into
|
|
// it
|
|
nsresult rv = MoveNodeToEndWithTransaction(*aNode, *sibling);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
sibling = GetNextHTMLSibling(aNode);
|
|
if (sibling && sibling->IsHTMLElement(atom)) {
|
|
// following sib is already right kind of inline node; slide this over
|
|
// into it
|
|
return MoveNodeWithTransaction(*aNode, EditorDOMPoint(sibling, 0));
|
|
}
|
|
|
|
// else insert it above aNode
|
|
RefPtr<Element> newElement =
|
|
InsertContainerWithTransaction(*aNode, MOZ_KnownLive(*atom));
|
|
NS_WARNING_ASSERTION(newElement,
|
|
"HTMLEditor::InsertContainerWithTransaction() failed");
|
|
return newElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// 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.
|
|
AutoTArray<nsCOMPtr<nsIContent>, 10> childList;
|
|
for (nsIContent* child = aNode->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
childList.AppendElement(child);
|
|
}
|
|
|
|
for (const auto& child : childList) {
|
|
// MOZ_KnownLive because 'childList' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv = RelativeFontChangeOnNode(aSizeChange, MOZ_KnownLive(child));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeOnNode() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
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 (for instance, Composer can, Messenger can't) 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
|