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1 /* | 1 /* |
2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. | 2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #ifndef HTMLScriptRunner_h | 26 #ifndef HTMLScriptRunner_h |
27 #define HTMLScriptRunner_h | 27 #define HTMLScriptRunner_h |
28 | 28 |
29 #include "core/dom/PendingScript.h" | 29 #include "core/dom/PendingScript.h" |
30 #include "core/fetch/ResourceClient.h" | |
31 #include "platform/heap/Handle.h" | |
30 #include "wtf/Deque.h" | 32 #include "wtf/Deque.h" |
31 #include "wtf/PassRefPtr.h" | 33 #include "wtf/PassRefPtr.h" |
32 #include "wtf/text/TextPosition.h" | 34 #include "wtf/text/TextPosition.h" |
33 | 35 |
34 namespace WebCore { | 36 namespace WebCore { |
35 | 37 |
36 class Resource; | 38 class Resource; |
37 class ScriptResource; | 39 class ScriptResource; |
38 class Document; | 40 class Document; |
39 class Element; | 41 class Element; |
40 class LocalFrame; | 42 class LocalFrame; |
41 class HTMLScriptRunnerHost; | 43 class HTMLScriptRunnerHost; |
42 class ScriptSourceCode; | 44 class ScriptSourceCode; |
43 | 45 |
44 class HTMLScriptRunner { | 46 class HTMLScriptRunner FINAL : public NoBaseWillBeGarbageCollectedFinalized<HTML ScriptRunner>, private ResourceClient { |
45 WTF_MAKE_NONCOPYABLE(HTMLScriptRunner); WTF_MAKE_FAST_ALLOCATED; | 47 WTF_MAKE_NONCOPYABLE(HTMLScriptRunner); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMO VED; |
46 public: | 48 public: |
47 static PassOwnPtr<HTMLScriptRunner> create(Document* document, HTMLScriptRun nerHost* host) | 49 static PassOwnPtrWillBeRawPtr<HTMLScriptRunner> create(Document* document, H TMLScriptRunnerHost* host) |
48 { | 50 { |
49 return adoptPtr(new HTMLScriptRunner(document, host)); | 51 return adoptPtrWillBeNoop(new HTMLScriptRunner(document, host)); |
50 } | 52 } |
51 ~HTMLScriptRunner(); | 53 ~HTMLScriptRunner(); |
52 | 54 |
53 void detach(); | 55 void detach(); |
54 | 56 |
55 // Processes the passed in script and any pending scripts if possible. | 57 // Processes the passed in script and any pending scripts if possible. |
56 void execute(PassRefPtr<Element> scriptToProcess, const TextPosition& script StartPosition); | 58 void execute(PassRefPtrWillBeRawPtr<Element> scriptToProcess, const TextPosi tion& scriptStartPosition); |
57 | 59 |
58 void executeScriptsWaitingForLoad(Resource*); | 60 void executeScriptsWaitingForLoad(Resource*); |
59 bool hasScriptsWaitingForResources() const { return m_hasScriptsWaitingForRe sources; } | 61 bool hasScriptsWaitingForResources() const { return m_hasScriptsWaitingForRe sources; } |
60 void executeScriptsWaitingForResources(); | 62 void executeScriptsWaitingForResources(); |
61 bool executeScriptsWaitingForParsing(); | 63 bool executeScriptsWaitingForParsing(); |
62 | 64 |
63 bool hasParserBlockingScript() const; | 65 bool hasParserBlockingScript() const; |
64 bool isExecutingScript() const { return !!m_scriptNestingLevel; } | 66 bool isExecutingScript() const { return !!m_scriptNestingLevel; } |
65 | 67 |
68 // ResourceClient | |
69 virtual void notifyFinished(Resource*) OVERRIDE; | |
70 | |
71 void trace(Visitor*); | |
72 | |
66 private: | 73 private: |
67 HTMLScriptRunner(Document*, HTMLScriptRunnerHost*); | 74 HTMLScriptRunner(Document*, HTMLScriptRunnerHost*); |
68 | 75 |
69 LocalFrame* frame() const; | 76 LocalFrame* frame() const; |
70 | 77 |
71 enum PendingScriptType { | 78 enum PendingScriptType { |
72 PendingScriptBlockingParser, | 79 PendingScriptBlockingParser, |
73 PendingScriptDeferred | 80 PendingScriptDeferred |
74 }; | 81 }; |
75 | 82 |
76 void executeParsingBlockingScript(); | 83 void executeParsingBlockingScript(); |
77 void executePendingScriptAndDispatchEvent(PendingScript&, PendingScriptType) ; | 84 void executePendingScriptAndDispatchEvent(PendingScript&, PendingScriptType) ; |
78 void executeParsingBlockingScripts(); | 85 void executeParsingBlockingScripts(); |
79 | 86 |
80 void requestParsingBlockingScript(Element*); | 87 void requestParsingBlockingScript(Element*); |
81 void requestDeferredScript(Element*); | 88 void requestDeferredScript(Element*); |
82 bool requestPendingScript(PendingScript&, Element*) const; | 89 bool requestPendingScript(PendingScript&, Element*) const; |
83 | 90 |
84 void runScript(Element*, const TextPosition& scriptStartPosition); | 91 void runScript(Element*, const TextPosition& scriptStartPosition); |
85 | 92 |
86 // Helpers for dealing with HTMLScriptRunnerHost | 93 // Helpers for dealing with HTMLScriptRunnerHost |
87 void watchForLoad(PendingScript&); | 94 void watchForLoad(PendingScript&); |
88 void stopWatchingForLoad(PendingScript&); | 95 void stopWatchingForLoad(PendingScript&); |
89 bool isPendingScriptReady(const PendingScript&); | 96 bool isPendingScriptReady(const PendingScript&); |
90 ScriptSourceCode sourceFromPendingScript(const PendingScript&, bool& errorOc curred) const; | 97 ScriptSourceCode sourceFromPendingScript(const PendingScript&, bool& errorOc curred) const; |
91 | 98 |
92 Document* m_document; | 99 RawPtrWillBeMember<Document> m_document; |
93 HTMLScriptRunnerHost* m_host; | 100 HTMLScriptRunnerHost* m_host; |
haraken
2014/05/29 01:46:08
This raw pointer looks OK, but it'd be better if w
sof
2014/05/29 06:02:07
Yes, it is safe.
| |
94 PendingScript m_parserBlockingScript; | 101 PendingScript m_parserBlockingScript; |
95 Deque<PendingScript> m_scriptsToExecuteAfterParsing; // http://www.whatwg.or g/specs/web-apps/current-work/#list-of-scripts-that-will-execute-when-the-docume nt-has-finished-parsing | 102 Deque<PendingScript> m_scriptsToExecuteAfterParsing; // http://www.whatwg.or g/specs/web-apps/current-work/#list-of-scripts-that-will-execute-when-the-docume nt-has-finished-parsing |
haraken
2014/05/29 01:46:08
Add a FIXME to change this to a HeapDeque.
sof
2014/05/29 06:02:07
It's a non-heap version for a reason. i.e., we can
| |
96 unsigned m_scriptNestingLevel; | 103 unsigned m_scriptNestingLevel; |
97 | 104 |
98 // We only want stylesheet loads to trigger script execution if script | 105 // We only want stylesheet loads to trigger script execution if script |
99 // execution is currently stopped due to stylesheet loads, otherwise we'd | 106 // execution is currently stopped due to stylesheet loads, otherwise we'd |
100 // cause nested script execution when parsing <style> tags since </style> | 107 // cause nested script execution when parsing <style> tags since </style> |
101 // tags can cause Document to call executeScriptsWaitingForResources. | 108 // tags can cause Document to call executeScriptsWaitingForResources. |
102 bool m_hasScriptsWaitingForResources; | 109 bool m_hasScriptsWaitingForResources; |
103 }; | 110 }; |
104 | 111 |
105 } | 112 } |
106 | 113 |
107 #endif | 114 #endif |
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