зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.2 KiB
C++
115 строки
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "mozilla/EditorUtils.h"
|
|
|
|
#include "mozilla/ContentIterator.h"
|
|
#include "mozilla/EditorDOMPoint.h"
|
|
#include "mozilla/OwningNonNull.h"
|
|
#include "mozilla/dom/Selection.h"
|
|
#include "nsComponentManagerUtils.h"
|
|
#include "nsError.h"
|
|
#include "nsIContent.h"
|
|
#include "nsIDocShell.h"
|
|
#include "mozilla/dom/Document.h"
|
|
#include "nsIInterfaceRequestorUtils.h"
|
|
#include "nsINode.h"
|
|
|
|
class nsISupports;
|
|
class nsRange;
|
|
|
|
namespace mozilla {
|
|
|
|
using namespace dom;
|
|
|
|
/******************************************************************************
|
|
* some helper classes for iterating the dom tree
|
|
*****************************************************************************/
|
|
|
|
DOMIterator::DOMIterator(nsINode& aNode MOZ_GUARD_OBJECT_NOTIFIER_PARAM_IN_IMPL)
|
|
: mIter(&mPostOrderIter) {
|
|
MOZ_GUARD_OBJECT_NOTIFIER_INIT;
|
|
DebugOnly<nsresult> rv = mIter->Init(&aNode);
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
}
|
|
|
|
nsresult DOMIterator::Init(nsRange& aRange) { return mIter->Init(&aRange); }
|
|
|
|
DOMIterator::DOMIterator(MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_IN_IMPL)
|
|
: mIter(&mPostOrderIter) {
|
|
MOZ_GUARD_OBJECT_NOTIFIER_INIT;
|
|
}
|
|
|
|
void DOMIterator::AppendList(
|
|
const BoolDomIterFunctor& functor,
|
|
nsTArray<OwningNonNull<nsINode>>& arrayOfNodes) const {
|
|
// Iterate through dom and build list
|
|
for (; !mIter->IsDone(); mIter->Next()) {
|
|
nsCOMPtr<nsINode> node = mIter->GetCurrentNode();
|
|
|
|
if (functor(node)) {
|
|
arrayOfNodes.AppendElement(*node);
|
|
}
|
|
}
|
|
}
|
|
|
|
DOMSubtreeIterator::DOMSubtreeIterator(
|
|
MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_IN_IMPL)
|
|
: DOMIterator(MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_TO_PARENT) {
|
|
mIter = &mSubtreeIter;
|
|
}
|
|
|
|
nsresult DOMSubtreeIterator::Init(nsRange& aRange) {
|
|
return mIter->Init(&aRange);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* some general purpose editor utils
|
|
*****************************************************************************/
|
|
|
|
bool EditorUtils::IsDescendantOf(const nsINode& aNode, const nsINode& aParent,
|
|
EditorRawDOMPoint* aOutPoint /* = nullptr */) {
|
|
if (aOutPoint) {
|
|
aOutPoint->Clear();
|
|
}
|
|
|
|
if (&aNode == &aParent) {
|
|
return false;
|
|
}
|
|
|
|
for (const nsINode* node = &aNode; node; node = node->GetParentNode()) {
|
|
if (node->GetParentNode() == &aParent) {
|
|
if (aOutPoint) {
|
|
MOZ_ASSERT(node->IsContent());
|
|
aOutPoint->Set(node->AsContent());
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool EditorUtils::IsDescendantOf(const nsINode& aNode, const nsINode& aParent,
|
|
EditorDOMPoint* aOutPoint) {
|
|
MOZ_ASSERT(aOutPoint);
|
|
aOutPoint->Clear();
|
|
if (&aNode == &aParent) {
|
|
return false;
|
|
}
|
|
|
|
for (const nsINode* node = &aNode; node; node = node->GetParentNode()) {
|
|
if (node->GetParentNode() == &aParent) {
|
|
MOZ_ASSERT(node->IsContent());
|
|
aOutPoint->Set(node->AsContent());
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
} // namespace mozilla
|