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27 #include "core/dom/ScriptRunner.h"
29 #include "core/dom/Document.h"
30 #include "core/dom/Element.h"
31 #include "core/dom/PendingScript.h"
32 #include "core/dom/ScriptLoader.h"
33 #include "core/fetch/ScriptResource.h"
34 #include "platform/heap/Handle.h"
38 ScriptRunner::ScriptRunner(Document* document)
39 : m_document(document)
40 , m_timer(this, &ScriptRunner::timerFired)
45 ScriptRunner::~ScriptRunner()
49 void ScriptRunner::queueScriptForExecution(ScriptLoader* scriptLoader, ResourcePtr<ScriptResource> resource, ExecutionType executionType)
52 ASSERT(resource.get());
54 Element* element = scriptLoader->element();
56 ASSERT(element->inDocument());
58 m_document->incrementLoadEventDelayCount();
60 switch (executionType) {
62 m_pendingAsyncScripts.add(scriptLoader, PendingScript(element, resource.get()));
65 case IN_ORDER_EXECUTION:
66 m_scriptsToExecuteInOrder.append(PendingScript(element, resource.get()));
71 void ScriptRunner::suspend()
76 void ScriptRunner::resume()
78 if (hasPendingScripts())
79 m_timer.startOneShot(0, FROM_HERE);
82 void ScriptRunner::notifyScriptReady(ScriptLoader* scriptLoader, ExecutionType executionType)
84 switch (executionType) {
86 ASSERT(m_pendingAsyncScripts.contains(scriptLoader));
87 m_scriptsToExecuteSoon.append(m_pendingAsyncScripts.take(scriptLoader));
90 case IN_ORDER_EXECUTION:
91 ASSERT(!m_scriptsToExecuteInOrder.isEmpty());
94 m_timer.startOneShot(0, FROM_HERE);
97 void ScriptRunner::notifyScriptLoadError(ScriptLoader* scriptLoader, ExecutionType executionType)
99 switch (executionType) {
100 case ASYNC_EXECUTION:
101 ASSERT(m_pendingAsyncScripts.contains(scriptLoader));
102 m_pendingAsyncScripts.remove(scriptLoader);
103 m_document->decrementLoadEventDelayCount();
106 case IN_ORDER_EXECUTION:
107 ASSERT(!m_scriptsToExecuteInOrder.isEmpty());
112 void ScriptRunner::timerFired(Timer<ScriptRunner>* timer)
114 ASSERT_UNUSED(timer, timer == &m_timer);
116 RefPtrWillBeRawPtr<Document> protect(m_document.get());
118 Vector<PendingScript> scripts;
119 scripts.swap(m_scriptsToExecuteSoon);
121 size_t numInOrderScriptsToExecute = 0;
122 for (; numInOrderScriptsToExecute < m_scriptsToExecuteInOrder.size() && m_scriptsToExecuteInOrder[numInOrderScriptsToExecute].resource()->isLoaded(); ++numInOrderScriptsToExecute)
123 scripts.append(m_scriptsToExecuteInOrder[numInOrderScriptsToExecute]);
124 if (numInOrderScriptsToExecute)
125 m_scriptsToExecuteInOrder.remove(0, numInOrderScriptsToExecute);
127 size_t size = scripts.size();
128 for (size_t i = 0; i < size; ++i) {
129 ScriptResource* resource = scripts[i].resource();
130 RefPtrWillBeRawPtr<Element> element = scripts[i].releaseElementAndClear();
131 toScriptLoaderIfPossible(element.get())->execute(resource);
132 m_document->decrementLoadEventDelayCount();
136 void ScriptRunner::trace(Visitor* visitor)
139 visitor->trace(m_document);
140 visitor->trace(m_scriptsToExecuteInOrder);
141 visitor->trace(m_scriptsToExecuteSoon);
142 visitor->trace(m_pendingAsyncScripts);