Home | History | Annotate | Download | only in parser
      1 /*
      2  * Copyright (C) 2013 Google, Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GOOGLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "core/html/parser/HTMLParserOptions.h"
     28 
     29 #include "bindings/core/v8/ScriptController.h"
     30 #include "core/dom/Document.h"
     31 #include "core/frame/LocalFrame.h"
     32 #include "core/frame/Settings.h"
     33 #include "core/loader/FrameLoader.h"
     34 
     35 namespace blink {
     36 
     37 HTMLParserOptions::HTMLParserOptions(Document* document)
     38 {
     39     LocalFrame* frame = document ? document->frame() : 0;
     40     scriptEnabled = frame && frame->script().canExecuteScripts(NotAboutToExecuteScript);
     41     pluginsEnabled = frame && frame->loader().allowPlugins(NotAboutToInstantiatePlugin);
     42 
     43     // We force the main-thread parser for three cases:
     44     // - about:blank and javascript (which uses about:blank) for compatibility
     45     //   with historical synchronous loading/parsing behavior.
     46     // - HTML imports (FIXME: enable off-thread parser for this case)
     47     // - inspector/DOMPatchSupport replacing the whole document.
     48     //   (DOMPatchSupport calls in |DocumentParser::pinToMainThread()| for this case)
     49     // FIXME: Gecko does not load javascript: urls synchronously, why do we?
     50     // See LayoutTests/loader/iframe-sync-loads.html
     51     useThreading = document && !document->importsController() && !document->url().isAboutBlankURL();
     52 }
     53 
     54 }
     55