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(The merge base is r180365, roughly three weeks behind where Sky forked from Blink at r181355.) sky/engine/bindings-dart was third_party/WebKit/Source/bindings/ R=rafaelw@chromium.org Review URL: https://codereview.chromium.org/875013003
138 lines
5.0 KiB
C++
138 lines
5.0 KiB
C++
/*
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* Copyright (C) 2014 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ScriptState_h
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#define ScriptState_h
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#include "bindings/common/AbstractScriptValue.h"
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#include "platform/heap/Handle.h"
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#include "wtf/Assertions.h"
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#include "wtf/Noncopyable.h"
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#include "wtf/RefCounted.h"
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namespace blink {
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class AbstractScriptPromiseResolver;
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class AbstractScriptStateProtectingContext;
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class DOMException;
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class DOMWrapperWorld;
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class ExecutionContext;
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class IDBAny;
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class IDBKey;
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class LocalDOMWindow;
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class LocalFrame;
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class SharedBuffer;
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class ScriptPromiseResolver;
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class V8ScriptState;
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class WebBlobInfo;
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class ScriptState : public RefCounted<ScriptState> {
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WTF_MAKE_NONCOPYABLE(ScriptState);
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public:
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virtual ~ScriptState() { }
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virtual bool isV8ScriptState() const { return false; }
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virtual bool isDartScriptState() const { return false; }
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virtual V8ScriptState* v8ScriptState() = 0;
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virtual ExecutionContext* executionContext() const = 0;
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virtual LocalDOMWindow* domWindow() const = 0;
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virtual LocalDOMWindow* callingDOMWindow() const = 0;
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virtual PassRefPtr<AbstractScriptValue> createNull() = 0;
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virtual PassRefPtr<AbstractScriptValue> createUndefined() = 0;
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virtual PassRefPtr<AbstractScriptValue> createBoolean(bool value) = 0;
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virtual PassRefPtr<AbstractScriptPromise> createEmptyPromise() = 0;
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virtual PassRefPtr<AbstractScriptPromise> createRejectedPromise(PassRefPtrWillBeRawPtr<DOMException>) = 0;
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virtual PassRefPtr<AbstractScriptPromise> createPromiseRejectedWithTypeError(const String& message) = 0;
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virtual PassOwnPtr<AbstractScriptPromiseResolver> createPromiseResolver(ScriptPromiseResolver*) = 0;
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virtual AbstractScriptStateProtectingContext* createProtectingContext() = 0;
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virtual PassRefPtr<AbstractScriptValue> idbAnyToScriptValue(IDBAny*) = 0;
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virtual PassRefPtr<AbstractScriptValue> idbKeyToScriptValue(IDBKey*) = 0;
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virtual const String* name() = 0;
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virtual intptr_t libraryId() = 0;
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virtual bool isJavaScript() = 0;
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#ifndef NDEBUG
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virtual void assertPrimaryKeyValidOrInjectable(PassRefPtr<SharedBuffer>, const Vector<blink::WebBlobInfo>*, IDBKey*, const IDBKeyPath&) = 0;
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#endif
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protected:
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ScriptState() { }
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};
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class AbstractScriptStateProtectingContext {
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public:
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virtual ~AbstractScriptStateProtectingContext() { }
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virtual ScriptState* get() const = 0;
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virtual void clear() = 0;
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protected:
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AbstractScriptStateProtectingContext() { }
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};
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// ScriptStateProtectingContext keeps the context (V8) or isolate (Dart) associated with the ScriptState alive.
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// You need to call clear() once you no longer need the context. Otherwise, the context will leak.
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class ScriptStateProtectingContext {
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WTF_MAKE_NONCOPYABLE(ScriptStateProtectingContext);
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public:
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ScriptStateProtectingContext(ScriptState* scriptState)
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: m_implProtectingContext(scriptState ? scriptState->createProtectingContext() : 0) { }
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~ScriptStateProtectingContext()
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{
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clear();
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}
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ScriptState* operator->() const
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{
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return m_implProtectingContext ? m_implProtectingContext->get() : 0;
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}
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ScriptState* get() const
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{
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return m_implProtectingContext ? m_implProtectingContext->get() : 0;
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}
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void clear()
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{
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if (m_implProtectingContext) {
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m_implProtectingContext->clear();
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delete m_implProtectingContext;
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m_implProtectingContext = 0;
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}
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}
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private:
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AbstractScriptStateProtectingContext* m_implProtectingContext;
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};
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} // namespace blink
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#endif // ScriptState_h
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