зеркало из https://github.com/mozilla/gecko-dev.git
136 строки
4.6 KiB
C++
136 строки
4.6 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 "HTMLEditHelpers.h"
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#include "EditorDOMPoint.h"
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#include "HTMLEditor.h"
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#include "WSRunObject.h"
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#include "mozilla/ContentIterator.h"
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#include "mozilla/OwningNonNull.h"
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#include "mozilla/dom/HTMLBRElement.h"
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#include "mozilla/dom/Text.h"
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#include "nsIContent.h"
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#include "nsINode.h"
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#include "nsRange.h"
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class nsISupports;
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namespace mozilla {
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using namespace dom;
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template void DOMIterator::AppendAllNodesToArray(
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nsTArray<OwningNonNull<nsIContent>>& aArrayOfNodes) const;
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template void DOMIterator::AppendAllNodesToArray(
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nsTArray<OwningNonNull<HTMLBRElement>>& aArrayOfNodes) const;
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template void DOMIterator::AppendNodesToArray(
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BoolFunctor aFunctor, nsTArray<OwningNonNull<nsIContent>>& aArrayOfNodes,
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void* aClosure) const;
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template void DOMIterator::AppendNodesToArray(
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BoolFunctor aFunctor, nsTArray<OwningNonNull<Element>>& aArrayOfNodes,
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void* aClosure) const;
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template void DOMIterator::AppendNodesToArray(
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BoolFunctor aFunctor, nsTArray<OwningNonNull<Text>>& aArrayOfNodes,
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void* aClosure) const;
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/******************************************************************************
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* some helper classes for iterating the dom tree
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*****************************************************************************/
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DOMIterator::DOMIterator(nsINode& aNode) : mIter(&mPostOrderIter) {
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DebugOnly<nsresult> rv = mIter->Init(&aNode);
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MOZ_ASSERT(NS_SUCCEEDED(rv));
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}
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nsresult DOMIterator::Init(nsRange& aRange) { return mIter->Init(&aRange); }
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nsresult DOMIterator::Init(const RawRangeBoundary& aStartRef,
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const RawRangeBoundary& aEndRef) {
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return mIter->Init(aStartRef, aEndRef);
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}
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DOMIterator::DOMIterator() : mIter(&mPostOrderIter) {}
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template <class NodeClass>
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void DOMIterator::AppendAllNodesToArray(
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nsTArray<OwningNonNull<NodeClass>>& aArrayOfNodes) const {
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for (; !mIter->IsDone(); mIter->Next()) {
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if (NodeClass* node = NodeClass::FromNode(mIter->GetCurrentNode())) {
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aArrayOfNodes.AppendElement(*node);
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}
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}
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}
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template <class NodeClass>
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void DOMIterator::AppendNodesToArray(
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BoolFunctor aFunctor, nsTArray<OwningNonNull<NodeClass>>& aArrayOfNodes,
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void* aClosure /* = nullptr */) const {
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for (; !mIter->IsDone(); mIter->Next()) {
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NodeClass* node = NodeClass::FromNode(mIter->GetCurrentNode());
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if (node && aFunctor(*node, aClosure)) {
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aArrayOfNodes.AppendElement(*node);
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}
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}
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}
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DOMSubtreeIterator::DOMSubtreeIterator() : DOMIterator() {
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mIter = &mSubtreeIter;
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}
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nsresult DOMSubtreeIterator::Init(nsRange& aRange) {
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return mIter->Init(&aRange);
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}
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/******************************************************************************
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* mozilla::SplitNodeResult
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*****************************************************************************/
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nsresult SplitNodeResult::SuggestCaretPointTo(
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const HTMLEditor& aHTMLEditor, const SuggestCaretOptions& aOptions) const {
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mHandledCaretPoint = true;
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if (!mCaretPoint.IsSet()) {
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if (aOptions.contains(SuggestCaret::OnlyIfHasSuggestion)) {
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return NS_OK;
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}
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NS_WARNING("There was no suggestion to put caret");
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return NS_ERROR_FAILURE;
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}
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if (aOptions.contains(SuggestCaret::OnlyIfTransactionsAllowedToDoIt) &&
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!aHTMLEditor.AllowsTransactionsToChangeSelection()) {
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return NS_OK;
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}
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nsresult rv = aHTMLEditor.CollapseSelectionTo(mCaretPoint);
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if (MOZ_UNLIKELY(rv == NS_ERROR_EDITOR_DESTROYED)) {
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NS_WARNING(
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"EditorBase::CollapseSelectionTo() caused destroying the editor");
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return NS_ERROR_EDITOR_DESTROYED;
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}
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return aOptions.contains(SuggestCaret::AndIgnoreTrivialError) &&
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MOZ_UNLIKELY(NS_FAILED(rv))
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? NS_SUCCESS_EDITOR_BUT_IGNORED_TRIVIAL_ERROR
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: rv;
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}
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bool SplitNodeResult::MoveCaretPointTo(EditorDOMPoint& aPointToPutCaret,
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const HTMLEditor& aHTMLEditor,
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const SuggestCaretOptions& aOptions) {
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MOZ_ASSERT(!aOptions.contains(SuggestCaret::AndIgnoreTrivialError));
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mHandledCaretPoint = true;
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if (aOptions.contains(SuggestCaret::OnlyIfHasSuggestion) &&
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!mCaretPoint.IsSet()) {
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return false;
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}
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if (aOptions.contains(SuggestCaret::OnlyIfTransactionsAllowedToDoIt) &&
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!aHTMLEditor.AllowsTransactionsToChangeSelection()) {
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return false;
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}
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aPointToPutCaret = UnwrapCaretPoint();
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return true;
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}
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} // namespace mozilla
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