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This CL generated by |sed -i '/sky\/engine\/config.h/d'| and a manual sweep to catch some oddballs. TBR=eseidel@chromium.org Review URL: https://codereview.chromium.org/1206763002.
128 lines
3.8 KiB
C++
128 lines
3.8 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "sky/engine/core/html/parser/HTMLScriptRunner.h"
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#include "base/bind.h"
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#include "sky/engine/core/app/AbstractModule.h"
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#include "sky/engine/core/dom/Document.h"
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#include "sky/engine/core/dom/Microtask.h"
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#include "sky/engine/core/frame/LocalFrame.h"
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#include "sky/engine/core/html/HTMLScriptElement.h"
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#include "sky/engine/core/script/dart_controller.h"
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namespace blink {
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PassOwnPtr<HTMLScriptRunner> HTMLScriptRunner::createForScript(
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PassRefPtr<HTMLScriptElement> element,
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TextPosition position,
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HTMLScriptRunnerHost* host) {
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return adoptPtr(new HTMLScriptRunner(element, position, host));
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}
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HTMLScriptRunner::HTMLScriptRunner(PassRefPtr<HTMLScriptElement> element,
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TextPosition position,
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HTMLScriptRunnerHost* host)
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: m_host(host),
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m_element(element),
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m_position(position),
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m_state(StateInitial),
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m_weakFactory(this) {
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}
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HTMLScriptRunner::~HTMLScriptRunner()
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{
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// If we hit this ASSERT we failed to notify the ScriptRunnerHost!
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ASSERT(m_state == StateCompleted);
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}
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bool HTMLScriptRunner::isExecutingScript() const {
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return m_state == StateExecuting;
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}
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void HTMLScriptRunner::advanceTo(State state, AdvanceType advanceType) {
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if (advanceType == ExecutionNormal) {
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switch (m_state) {
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case StateInitial:
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ASSERT(state == StateLoading);
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break;
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case StateLoading:
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ASSERT(state == StateExecuting);
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break;
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case StateExecuting:
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ASSERT(state == StateCompleted);
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break;
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case StateCompleted:
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ASSERT_NOT_REACHED();
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}
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}
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m_state = state;
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if (m_state == StateCompleted)
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m_host->scriptExecutionCompleted();
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// We may be deleted by scriptExecutionCompleted().
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}
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static LocalFrame* contextFrame(Element* element) {
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Document* contextDocument = element->document().contextDocument().get();
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if (!contextDocument)
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return nullptr;
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LocalFrame* frame = contextDocument->frame();
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if (!frame)
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return nullptr;
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return frame;
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}
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void HTMLScriptRunner::scriptFailed() {
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advanceTo(StateCompleted, ExecutionFailure);
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}
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void HTMLScriptRunner::start() {
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ASSERT(m_state == StateInitial);
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ASSERT(m_element->document().haveImportsLoaded());
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Document& sourceDocument = m_element->document();
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String source = m_element->textContent();
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LocalFrame* frame = contextFrame(m_element.get());
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if (!frame)
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return scriptFailed();
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advanceTo(StateLoading);
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ASSERT(sourceDocument.module());
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DartController::LoadFinishedCallback loadFinished = base::Bind(
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&HTMLScriptRunner::executeLibrary, m_weakFactory.GetWeakPtr());
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frame->dart().LoadScriptInModule(sourceDocument.module(), source,
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m_position, loadFinished);
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}
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// Enforce that the caller holds refs using RefPtr.
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// FIXME: Neither of these should need refs, the Script should hold onto the
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// library the document should keep the Module alive.
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void HTMLScriptRunner::executeLibrary(RefPtr<AbstractModule> module,
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RefPtr<DartValue> library) {
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if (!module)
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return scriptFailed();
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advanceTo(StateExecuting);
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// Ian says we'll remove microtasks, but for now execute them right before
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// we "run" the script (call 'init'), not at dependency resolution
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// or script failures, etc.
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Microtask::performCheckpoint();
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if (LocalFrame* frame = contextFrame(m_element.get())) {
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frame->dart().ExecuteLibraryInModule(module.get(),
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library->dart_value(),
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m_element.get());
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}
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advanceTo(StateCompleted);
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// We may be deleted at this point.
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}
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}
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