Exemplo n.º 1
0
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript)
{
    bool errorOccurred = false;
    ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);

    // Stop watching loads before executeScript to prevent recursion if the script reloads itself.
    if (pendingScript.cachedScript() && pendingScript.watchingForLoad())
        stopWatchingForLoad(pendingScript);

    if (!isExecutingScript()) {
#if ENABLE(CUSTOM_ELEMENTS)
        CustomElementRegistry::deliverAllLifecycleCallbacks();
#endif
        MutationObserver::deliverAllMutations();
    }

    // Clear the pending script before possible rentrancy from executeScript()
    RefPtr<Element> element = pendingScript.releaseElementAndClear();
    if (ScriptElement* scriptElement = toScriptElement(element.get())) {
        NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
        IgnoreDestructiveWriteCountIncrementer ignoreDestructiveWriteCountIncrementer(m_document);
        if (errorOccurred)
            scriptElement->dispatchErrorEvent();
        else {
            ASSERT(isExecutingScript());
            scriptElement->executeScript(sourceCode);
            element->dispatchEvent(createScriptLoadEvent());
        }
    }
    ASSERT(!isExecutingScript());
}
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript)
{
    bool errorOccurred = false;
    ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);

    // Stop watching loads before executeScript to prevent recursion if the script reloads itself.
    if (pendingScript.resource() && pendingScript.watchingForLoad())
        stopWatchingForLoad(pendingScript);

    if (!isExecutingScript())
        Microtask::performCheckpoint();

    // Clear the pending script before possible rentrancy from executeScript()
    RefPtr<Element> element = pendingScript.releaseElementAndClear();
    if (ScriptLoader* scriptLoader = toScriptLoaderIfPossible(element.get())) {
        NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
        IgnoreDestructiveWriteCountIncrementer ignoreDestructiveWriteCountIncrementer(m_document);
        if (errorOccurred)
            scriptLoader->dispatchErrorEvent();
        else {
            ASSERT(isExecutingScript());
            scriptLoader->executeScript(sourceCode);
            element->dispatchEvent(createScriptLoadEvent());
        }
    }
    ASSERT(!isExecutingScript());
}
Exemplo n.º 3
0
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript)
{
    bool errorOccurred = false;
    ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);

    // Stop watching loads before executeScript to prevent recursion if the script reloads itself.
    if (pendingScript.cachedScript() && pendingScript.watchingForLoad())
        stopWatchingForLoad(pendingScript);

    // WebERA: Insert HB relation between the execution of a pending script and the load of the script
    if (HBIsCurrentEventActionValid() && pendingScript.cachedScript() && pendingScript.cachedScript()->isLoaded() && pendingScript.cachedScript()->getLoadingEventAction() != 0) {
        HBAddExplicitArc(pendingScript.cachedScript()->getLoadingEventAction(), HBCurrentEventAction());
    }

    // Clear the pending script before possible rentrancy from executeScript()
    RefPtr<Element> element = pendingScript.releaseElementAndClear();
    if (ScriptElement* scriptElement = toScriptElement(element.get())) {
        NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
        IgnoreDestructiveWriteCountIncrementer ignoreDestructiveWriteCountIncrementer(m_document);
        if (errorOccurred)
            scriptElement->dispatchErrorEvent();
        else {
            ASSERT(isExecutingScript());
            scriptElement->executeScript(sourceCode);
            element->dispatchEvent(createScriptLoadEvent());
        }
    }
    ASSERT(!m_scriptNestingLevel);
}
Exemplo n.º 4
0
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript, PendingScriptType pendingScriptType)
{
    bool errorOccurred = false;
    ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);

    // Stop watching loads before executeScript to prevent recursion if the script reloads itself.
    if (pendingScript.resource() && pendingScript.watchingForLoad())
        stopWatchingForLoad(pendingScript);

    if (!isExecutingScript()) {
        Microtask::performCheckpoint();
        if (pendingScriptType == PendingScriptBlockingParser) {
            m_hasScriptsWaitingForResources = !m_document->isScriptExecutionReady();
            // The parser cannot be unblocked as a microtask requested another resource
            if (m_hasScriptsWaitingForResources)
                return;
        }
    }

    // Clear the pending script before possible rentrancy from executeScript()
    RefPtr<Element> element = pendingScript.releaseElementAndClear();
    if (ScriptLoader* scriptLoader = toScriptLoaderIfPossible(element.get())) {
        NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
        IgnoreDestructiveWriteCountIncrementer ignoreDestructiveWriteCountIncrementer(m_document);
        if (errorOccurred)
            scriptLoader->dispatchErrorEvent();
        else {
            ASSERT(isExecutingScript());
            scriptLoader->executeScript(sourceCode);
            element->dispatchEvent(createScriptLoadEvent());
        }
    }
    ASSERT(!isExecutingScript());
}
Exemplo n.º 5
0
void HTMLScriptRunner::detach()
{
    if (!m_document)
        return;

    m_parserBlockingScript->stopWatchingForLoad();
    m_parserBlockingScript->releaseElementAndClear();

    while (!m_scriptsToExecuteAfterParsing.isEmpty()) {
        PendingScript* pendingScript = m_scriptsToExecuteAfterParsing.takeFirst();
        pendingScript->stopWatchingForLoad();
        pendingScript->releaseElementAndClear();
    }
    m_document = nullptr;
}
Exemplo n.º 6
0
void HTMLScriptRunner::executePendingScriptAndDispatchEvent(PendingScript& pendingScript)
{
    bool errorOccurred = false;
    ScriptSourceCode sourceCode = sourceFromPendingScript(pendingScript, errorOccurred);

    // Clear the pending script before possible rentrancy from executeScript()
    RefPtr<Element> scriptElement = pendingScript.releaseElementAndClear();
    {
        NestingLevelIncrementer nestingLevelIncrementer(m_scriptNestingLevel);
        if (errorOccurred)
            scriptElement->dispatchEvent(createScriptErrorEvent());
        else 
		{
            executeScript(scriptElement.get(), sourceCode);
            scriptElement->dispatchEvent(createScriptLoadEvent());
        }
    }
    ASSERT(!m_scriptNestingLevel);
}