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Bug 1214377 - Hack to solve Thunderbird's need to detect style pre-wrap. r=roc

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This commit is contained in:
Jorg K 2015-10-13 13:21:00 +02:00
parent 9bb72b9ef2
commit 81295a7fcb
1 changed files with 15 additions and 5 deletions
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20
dom/base/nsDocumentEncoder.cpp
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@ -51,6 +51,7 @@
#include "mozilla/dom/EncodingUtils.h"
#include "nsContainerFrame.h"
#include "nsBlockFrame.h"
#include "nsComputedDOMStyle.h"
using namespace mozilla;
using namespace mozilla::dom;
@ -1428,10 +1429,6 @@ nsHTMLCopyEncoder::SetSelection(nsISelection* aSelection)
return NS_ERROR_NULL_POINTER;
range->GetCommonAncestorContainer(getter_AddRefs(commonParent));
// Thunderbird's msg compose code abuses the HTML copy encoder and gets
// confused if mIsTextWidget ends up becoming true, so for now we skip
// this logic in Thunderbird.
#ifndef MOZ_THUNDERBIRD
for (nsCOMPtr<nsIContent> selContent(do_QueryInterface(commonParent));
selContent;
selContent = selContent->GetParent())
@ -1442,6 +1439,20 @@ nsHTMLCopyEncoder::SetSelection(nsISelection* aSelection)
mIsTextWidget = true;
break;
}
#ifdef MOZ_THUNDERBIRD
else if (selContent->IsElement()) {
nsRefPtr<nsStyleContext> styleContext =
nsComputedDOMStyle::GetStyleContextForElementNoFlush(
selContent->AsElement(), nullptr, nullptr);
if (styleContext) {
const nsStyleText* textStyle = styleContext->StyleText();
if (textStyle->mWhiteSpace == NS_STYLE_WHITESPACE_PRE_WRAP) {
mIsTextWidget = true;
}
}
}
break;
#endif
}
// normalize selection if we are not in a widget
@ -1451,7 +1462,6 @@ nsHTMLCopyEncoder::SetSelection(nsISelection* aSelection)
mMimeType.AssignLiteral("text/plain");
return NS_OK;
}
#endif
// also consider ourselves in a text widget if we can't find an html document
nsCOMPtr<nsIHTMLDocument> htmlDoc = do_QueryInterface(mDocument);