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Reviewed by Maciej.
- tests for http://bugs.webkit.org/show_bug.cgi?id=12794
<rdar://problem/5028154> REGRESSION: TripTik planner at aaa.com never
finishes loading due to unclosed canvas tag (12794)
* fast/canvas/canvas-hides-fallback-expected.txt: Added.
* fast/canvas/canvas-hides-fallback.html: Added.
* fast/canvas/script-inside-canvas-fallback-expected.txt: Added.
* fast/canvas/script-inside-canvas-fallback.html: Added.
* fast/canvas/unclosed-canvas-1-expected.txt: Added.
* fast/canvas/unclosed-canvas-1.html: Added.
* fast/canvas/unclosed-canvas-2-expected.txt: Added.
* fast/canvas/unclosed-canvas-2.html: Added.
* fast/canvas/unclosed-canvas-3-expected.txt: Added.
* fast/canvas/unclosed-canvas-3.html: Added.
* fast/canvas/unclosed-canvas-4-expected.txt: Added.
* fast/canvas/unclosed-canvas-4.html: Added.
WebCore:
Reviewed by Maciej.
- fix http://bugs.webkit.org/show_bug.cgi?id=12794
<rdar://problem/5028154> REGRESSION: TripTik planner at aaa.com never
finishes loading due to unclosed canvas tag (12794)
Change <canvas> elements so that their contents are parsed normally,
but not rendered. This change fixes the bug, because normal parsing
rules close the <canvas> element in that case. The special parser
stuff was just getting in the way.
Also do some basic cleanup to the HTML parser. This was motivated by
an earlier version of this patch that made even more changes to the
parser, but the cleanup is still worth landing.
Test: fast/canvas/canvas-hides-fallback.html
Test: fast/canvas/script-inside-canvas-fallback.html
Test: fast/canvas/unclosed-canvas-1.html
Test: fast/canvas/unclosed-canvas-2.html
Test: fast/canvas/unclosed-canvas-3.html
Test: fast/canvas/unclosed-canvas-4.html
* html/HTMLCanvasElement.h: Added a data member to keep track of whether the
renderer is a RenderHTMLCanvas or not.
* html/HTMLCanvasElement.cpp:
(WebCore::HTMLCanvasElement::createRenderer): If JavaScript is enabled, create
a RenderHTMLCanvas. If it's not, let the default code create the default type
of renderer, which will result in fallback content being visible. The
RenderHTMLCanvas class already hides all of its children. Set the m_rendererIsCanvas
boolean accordingly. Since the actual storage for the canvas is allocated lazily
when you actually get a drawing context, we don't need to do anything special
to prevent it when JavaScript is disabled; the relevant functions won't be called.
(WebCore::HTMLCanvasElement::reset): Protect the code that manipulates the
RenderHTMLCanvas with a check of m_rendererIsCanvas. This is the only code inside
the DOM element that relies on the renderer type.
* html/HTMLParser.h: Removed unneeded includes. Marked HTMLParser as
Noncopyable. Changed the Document parameter to the constructor to instead
of HTMLDocument. Renamed discard_until to m_skipModeTag for clarity.
Removed unused noSpaces function and unneeded public doc() function.
Moved data members all down to the end so you can see them together in order.
Renamed map to m_currentMapElement and isindex to m_isindexElement.
Removed unused end and headLoaded data members. Renamed m_fragment to
m_isParsingFragment to make it clearer that it's a boolean, not a fragment.
* html/HTMLParser.cpp:
(WebCore::HTMLParser::HTMLParser): Changed to use member construction
syntax instead of calling reset(). This is especially helpful in the
fragment case, where calling reset() later on is illegal, so not using
it in the constructor lets us assert.
(WebCore::HTMLParser::~HTMLParser): Did an explicit deref instead of
calling setCurrent for its side effect.
(WebCore::HTMLParser::reset): Updated for member name changes and removal
and to use document instead of doc().
(WebCore::HTMLParser::setCurrent): Use document instead of doc().
(WebCore::HTMLParser::setSkipMode): Added. No longer inline. Now sets the
m_inCanvasBeforeFirstOpenTag data member to false.
(WebCore::HTMLParser::parseToken): Tightened up the skip mode logic at the
top of the function, and added a FIXME about the strange case there where
we don't skip yet stay in skip mode. Updated for renaming and doc().
(WebCore::HTMLParser::insertNode): Updated for renaming and doc().
(WebCore::HTMLParser::handleError): Ditto.
(WebCore::HTMLParser::framesetCreateErrorCheck): Ditto.
(WebCore::HTMLParser::isindexCreateErrorCheck): Changed to use RefPtr.
(WebCore::HTMLParser::noscriptCreateErrorCheck): Updated for renaming and doc().
(WebCore::HTMLParser::mapCreateErrorCheck): Ditto.
(WebCore::HTMLParser::getNode): Removed the special case for canvas here.
Canvas fallback is now handled in the DOM, not the parser. Updated for
renaming and doc().
(WebCore::HTMLParser::allowNestedRedundantTag): Changed a #define into a C++
constant.
(WebCore::HTMLParser::processCloseTag): Updated for renaming and doc().
(WebCore::HTMLParser::isInline): Ditto.
(WebCore::HTMLParser::tagIsOnStack): Added. Used by new canvas logic.
(WebCore::HTMLParser::popBlock): Updated for renaming and doc(). Also renamed
the local variable Elem to elem.
(WebCore::HTMLParser::createHead): Ditto.
(WebCore::HTMLParser::handleIsindex): Changed to use RefPtr.
(WebCore::HTMLParser::startBody): Updated for renaming and doc().
(WebCore::HTMLParser::finished): Ditto.
git-svn-id: svn://svn.chromium.org/blink/trunk@20170 bbb929c8-8fbe-4397-9dbb-9b2b20218538
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