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Bug 1460509 - part 56: Make HTMLEditRules::AlignBlockContents() return NS_ERROR_EDITOR_DESTROYED if it causes destroying the editor r=m_kato

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MozReview-Commit-ID: Jn4m4uTdLtW

--HG--
extra : rebase_source : dcaa6a6ebfb34965053680b12fbaa0236ac604a6
This commit is contained in:
Masayuki Nakano 2018-05-16 14:45:34 +09:00
parent bfe1ba2a3d
commit 7fd1c21f25
2 changed files with 35 additions and 7 deletions
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26
editor/libeditor/HTMLEditRules.cpp
View File

@ -5952,9 +5952,6 @@ HTMLEditRules::AlignInnerBlocks(nsINode& aNode,
}
/**
* AlignBlockContents() aligns contents of a block element.
*/
nsresult
HTMLEditRules::AlignBlockContents(nsINode& aNode,
const nsAString& aAlignType)
@ -5972,9 +5969,17 @@ HTMLEditRules::AlignBlockContents(nsINode& aNode,
if (firstChild == lastChild && firstChild->IsHTMLElement(nsGkAtoms::div)) {
// the cell already has a div containing all of its content: just
// act on this div.
return HTMLEditorRef().SetAttributeOrEquivalent(firstChild->AsElement(),
nsGkAtoms::align,
aAlignType, false);
nsresult rv =
HTMLEditorRef().SetAttributeOrEquivalent(firstChild->AsElement(),
nsGkAtoms::align,
aAlignType, false);
if (NS_WARN_IF(!CanHandleEditAction())) {
return NS_ERROR_EDITOR_DESTROYED;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// else we need to put in a div, set the alignment, and toss in all the
@ -5982,6 +5987,9 @@ HTMLEditRules::AlignBlockContents(nsINode& aNode,
EditorRawDOMPoint atStartOfNode(&aNode, 0);
RefPtr<Element> divElem =
HTMLEditorRef().CreateNodeWithTransaction(*nsGkAtoms::div, atStartOfNode);
if (NS_WARN_IF(!CanHandleEditAction())) {
return NS_ERROR_EDITOR_DESTROYED;
}
if (NS_WARN_IF(!divElem)) {
return NS_ERROR_FAILURE;
}
@ -5989,6 +5997,9 @@ HTMLEditRules::AlignBlockContents(nsINode& aNode,
nsresult rv =
HTMLEditorRef().SetAttributeOrEquivalent(divElem, nsGkAtoms::align,
aAlignType, false);
if (NS_WARN_IF(!CanHandleEditAction())) {
return NS_ERROR_EDITOR_DESTROYED;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
@ -5997,6 +6008,9 @@ HTMLEditRules::AlignBlockContents(nsINode& aNode,
nsresult rv =
HTMLEditorRef().MoveNodeWithTransaction(*lastChild,
EditorRawDOMPoint(divElem, 0));
if (NS_WARN_IF(!CanHandleEditAction())) {
return NS_ERROR_EDITOR_DESTROYED;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}

16
editor/libeditor/HTMLEditRules.h
View File

@ -402,7 +402,21 @@ protected:
MOZ_MUST_USE nsresult DidAbsolutePosition();
nsresult AlignInnerBlocks(nsINode& aNode, const nsAString& aAlignType);
nsresult AlignBlockContents(nsINode& aNode, const nsAString& aAlignType);
/**
* AlignBlockContents() sets align attribute of <div> element which is
* only child of aNode to aAlignType. If aNode has 2 or more children or
* does not have a <div> element has only child, inserts a <div> element
* into aNode and move all children of aNode into the new <div> element.
*
* @param aNode The node whose contents should be aligned
* to aAlignType.
* @param aAlignType New value of align attribute of <div> which
* is only child of aNode.
*/
MOZ_MUST_USE nsresult
AlignBlockContents(nsINode& aNode, const nsAString& aAlignType);
nsresult AppendInnerFormatNodes(nsTArray<OwningNonNull<nsINode>>& aArray,
nsINode* aNode);
nsresult GetFormatString(nsINode* aNode, nsAString &outFormat);