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| author | Gaming4JC <g4jc@hyperbola.info> | 2020-05-22 22:26:28 -0400 |
|---|---|---|
| committer | Gaming4JC <g4jc@hyperbola.info> | 2020-07-31 15:59:59 -0400 |
| commit | 5f6ecd756b06e40c889ddab70356d7033336763b (patch) | |
| tree | 0df83efa208ad77f36ffb3666129725c070e29b9 /editor | |
| parent | 1115c63bf788dad121f65cf465ebf73562b4d029 (diff) | |
| download | uxp-5f6ecd756b06e40c889ddab70356d7033336763b.tar.gz | |
Issue #1621 - Part 4: Check whether node can be splited.
At first, HTMLEditor::GetActiveEditingHost might return null in this situation, we should check whether nullptr is returned. At second, SplitNodeDeep returns error since curent is design mode and selection node has no parent. So we should check error.
Ref: Bug 1350772
Diffstat (limited to 'editor')
| -rw-r--r-- | editor/libeditor/HTMLEditRules.cpp | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/editor/libeditor/HTMLEditRules.cpp b/editor/libeditor/HTMLEditRules.cpp index fe5e6c2bf5..f24d0131d1 100644 --- a/editor/libeditor/HTMLEditRules.cpp +++ b/editor/libeditor/HTMLEditRules.cpp @@ -1509,10 +1509,11 @@ HTMLEditRules::WillInsertBreak(Selection& aSelection, nsCOMPtr<Element> blockParent = htmlEditor->GetBlock(node); NS_ENSURE_TRUE(blockParent, NS_ERROR_FAILURE); - // If the active editing host is an inline element, or if the active editing - // host is the block parent itself, just append a br. + // When there is an active editing host (the <body> if it's in designMode) + // and a block which becomes the parent of line breaker is in it, do the + // standard thing. nsCOMPtr<Element> host = htmlEditor->GetActiveEditingHost(); - if (!EditorUtils::IsDescendantOf(blockParent, host)) { + if (host && !EditorUtils::IsDescendantOf(blockParent, host)) { nsresult rv = StandardBreakImpl(node, offset, aSelection); NS_ENSURE_SUCCESS(rv, rv); *aHandled = true; @@ -6498,10 +6499,14 @@ HTMLEditRules::SplitParagraph(nsIDOMNode *aPara, // split the paragraph NS_ENSURE_STATE(mHTMLEditor); NS_ENSURE_STATE(selNode->IsContent()); - mHTMLEditor->SplitNodeDeep(*para, *selNode->AsContent(), *aOffset, - HTMLEditor::EmptyContainers::yes, - getter_AddRefs(leftPara), - getter_AddRefs(rightPara)); + int32_t offset = + mHTMLEditor->SplitNodeDeep(*para, *selNode->AsContent(), *aOffset, + HTMLEditor::EmptyContainers::yes, + getter_AddRefs(leftPara), + getter_AddRefs(rightPara)); + if (NS_WARN_IF(offset == -1)) { + return NS_ERROR_FAILURE; + } // get rid of the break, if it is visible (otherwise it may be needed to prevent an empty p) NS_ENSURE_STATE(mHTMLEditor); if (mHTMLEditor->IsVisBreak(aBRNode)) { |