REGRESSION(r109480): Form state for iframe content is not restored

[Kent Tamura]

Created attachment 151438 [details]
Repro.  Put this to LayoutTests/fast/loader/.  Requires iframe/@srcdoc.

Regression by 
    http://trac.webkit.org/changeset/109480/trunk
    https://bugs.webkit.org/show_bug.cgi?id=79206

In r109480, I forgot to take care of documents in <iframe>s in a document loaded by FrameLoader::loadItem().

[Kent Tamura]

Created attachment 151624 [details]
Patch

[Kent Tamura]

Comment on attachment 151624 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=151624&action=review

> Source/WebCore/loader/HistoryController.cpp:166
> -    if (item->isCurrentDocument(document)) {
> +    if (item->isCurrentDocument(document) && document->attached()) {

I'm not confident of this change.

HistoryController::saveDocumentState() is called twice for a subframe document when the main frame is navigated to another URL.

1. FrameLoader::detachChildren() of the parent FrameLoader
   FrameLoader::detachFromParent()
   FrameLoader::closeURL()
   HistoryController::saveDocumentState()

2. HTMLFrameOwnerElement::disconnectContentFrame
   FrameLoader::frameDetached()
   FrameLoader::detachFromParent()
   FrameLoader::closeURL()
   HistoryController::saveDocumentState()

Is it an expected behavior?

[Kent Tamura]

Created attachment 160301 [details]
Patch 2

just rebase

Comment on attachment 160301 [details]
Patch 2

View in context: https://bugs.webkit.org/attachment.cgi?id=160301&action=review

> Source/WebCore/ChangeLog:29
> +        Added. This function checks the current HisotryItem is associated

spelling Hisotry

> Source/WebCore/loader/HistoryController.cpp:182
> +static inline bool isAssociatedToRequestedHisotryItem(const HistoryItem* current, Frame* frame, const HistoryItem* requested)

spelling "Hisotry"

[Kent Tamura]

Created attachment 160891 [details]
Patch for landing

hisotry

[WebKit Review Bot]

Comment on attachment 160891 [details]
Patch for landing

Clearing flags on attachment: 160891

Committed r126839: <http://trac.webkit.org/changeset/126839>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.