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Bug 1165982 - part 1 - provide fallible initialization of nsDOMIterator from an nsRange; r=ehsan

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This commit is contained in:
Nathan Froyd 2015-05-22 09:58:30 -04:00
parent 309d57da39
commit a587185972
4 changed files with 33 additions and 20 deletions
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25
editor/libeditor/nsEditorUtils.cpp
View File

@ -66,14 +66,6 @@ nsAutoSelectionReset::Abort()
* some helper classes for iterating the dom tree
*****************************************************************************/
nsDOMIterator::nsDOMIterator(nsRange& aRange)
{
MOZ_ASSERT(aRange.GetStartParent(), "Invalid range");
mIter = NS_NewContentIterator();
DebugOnly<nsresult> res = mIter->Init(&aRange);
MOZ_ASSERT(NS_SUCCEEDED(res));
}
nsDOMIterator::nsDOMIterator(nsINode& aNode)
{
mIter = NS_NewContentIterator();
@ -81,6 +73,13 @@ nsDOMIterator::nsDOMIterator(nsINode& aNode)
MOZ_ASSERT(NS_SUCCEEDED(res));
}
nsresult
nsDOMIterator::Init(nsRange& aRange)
{
mIter = NS_NewContentIterator();
return mIter->Init(&aRange);
}
nsDOMIterator::nsDOMIterator()
{
}
@ -103,11 +102,15 @@ nsDOMIterator::AppendList(const nsBoolDomIterFunctor& functor,
}
}
nsDOMSubtreeIterator::nsDOMSubtreeIterator(nsRange& aRange)
nsDOMSubtreeIterator::nsDOMSubtreeIterator()
{
}
nsresult
nsDOMSubtreeIterator::Init(nsRange& aRange)
{
mIter = NS_NewContentSubtreeIterator();
DebugOnly<nsresult> res = mIter->Init(&aRange);
MOZ_ASSERT(NS_SUCCEEDED(res));
return mIter->Init(&aRange);
}
nsDOMSubtreeIterator::~nsDOMSubtreeIterator()

12
editor/libeditor/nsEditorUtils.h
View File

@ -173,24 +173,26 @@ class nsBoolDomIterFunctor
class MOZ_STACK_CLASS nsDOMIterator
{
public:
explicit nsDOMIterator(nsRange& aRange);
nsDOMIterator();
explicit nsDOMIterator(nsINode& aNode);
virtual ~nsDOMIterator();
nsresult Init(nsRange& aRange);
void AppendList(const nsBoolDomIterFunctor& functor,
nsTArray<mozilla::dom::OwningNonNull<nsINode>>& arrayOfNodes) const;
protected:
nsCOMPtr<nsIContentIterator> mIter;
// For nsDOMSubtreeIterator
nsDOMIterator();
};
class MOZ_STACK_CLASS nsDOMSubtreeIterator : public nsDOMIterator
{
public:
explicit nsDOMSubtreeIterator(nsRange& aRange);
nsDOMSubtreeIterator();
virtual ~nsDOMSubtreeIterator();
nsresult Init(nsRange& aRange);
};
class nsTrivialFunctor : public nsBoolDomIterFunctor

4
editor/libeditor/nsHTMLDataTransfer.cpp
View File

@ -2151,7 +2151,9 @@ nsHTMLEditor::CreateListOfNodesToPaste(DocumentFragment& aFragment,
// Now use a subtree iterator over the range to create a list of nodes
nsTrivialFunctor functor;
nsDOMSubtreeIterator iter(*docFragRange);
nsDOMSubtreeIterator iter;
rv = iter.Init(*docFragRange);
NS_ENSURE_SUCCESS(rv, );
iter.AppendList(functor, outNodeList);
}

12
editor/libeditor/nsHTMLEditRules.cpp
View File

@ -2403,7 +2403,9 @@ nsHTMLEditRules::WillDeleteSelection(Selection* aSelection,
// Build a list of nodes in the range
nsTArray<OwningNonNull<nsINode>> arrayOfNodes;
nsTrivialFunctor functor;
nsDOMSubtreeIterator iter(*range);
nsDOMSubtreeIterator iter;
nsresult res = iter.Init(*range);
NS_ENSURE_SUCCESS(res, res);
iter.AppendList(functor, arrayOfNodes);
// Now that we have the list, delete non-table elements
@ -5783,7 +5785,9 @@ nsHTMLEditRules::GetNodesForOperation(nsTArray<nsRefPtr<nsRange>>& aArrayOfRange
}
// Gather up a list of all the nodes
for (auto& range : aArrayOfRanges) {
nsDOMSubtreeIterator iter(*range);
nsDOMSubtreeIterator iter;
nsresult res = iter.Init(*range);
NS_ENSURE_SUCCESS(res, res);
if (aOutArrayOfNodes.Length() == 0) {
iter.AppendList(nsTrivialFunctor(), aOutArrayOfNodes);
} else {
@ -7291,7 +7295,9 @@ nsHTMLEditRules::AdjustSpecialBreaks()
// Gather list of empty nodes
nsTArray<OwningNonNull<nsINode>> nodeArray;
nsEmptyEditableFunctor functor(mHTMLEditor);
nsDOMIterator iter(*mDocChangeRange);
nsDOMIterator iter;
nsresult res = iter.Init(*mDocChangeRange);
NS_ENSURE_SUCCESS(res, );
iter.AppendList(functor, nodeArray);
// Put moz-br's into these empty li's and td's