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Unified Diff: Source/bindings/core/v8/ScriptPromisePropertyBase.h

Issue 361863003: Add a helper for implementing Promise-valued properties. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: More feedback. Keeping separate header file for now. Created 6 years, 6 months ago
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Index: Source/bindings/core/v8/ScriptPromisePropertyBase.h
diff --git a/Source/bindings/core/v8/ScriptPromisePropertyBase.h b/Source/bindings/core/v8/ScriptPromisePropertyBase.h
new file mode 100644
index 0000000000000000000000000000000000000000..2cecbdc05819ffc5871dc8193b6d368393ad60e4
--- /dev/null
+++ b/Source/bindings/core/v8/ScriptPromisePropertyBase.h
@@ -0,0 +1,70 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ScriptPromisePropertyBase_h
+#define ScriptPromisePropertyBase_h
+
+#include "bindings/core/v8/ScopedPersistent.h"
+#include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptPromiseProperties.h"
+#include "core/dom/ContextLifecycleObserver.h"
+#include "wtf/RefCounted.h"
+#include <v8.h>
+
+namespace WebCore {
+
+class ExecutionContext;
+
+class ScriptPromisePropertyBase : public ContextLifecycleObserver, public RefCounted<ScriptPromisePropertyBase> {
+public:
+ virtual ~ScriptPromisePropertyBase();
+
+ enum Name {
+#define P(Name) Name
+ SCRIPT_PROMISE_PROPERTIES(P)
+#undef P
+ };
+
+ enum State {
+ Pending,
+ Resolved,
+ Rejected,
+ };
+ State state() const { return m_state; }
+
+ ScriptPromise promise(DOMWrapperWorld&);
+
+protected:
+ ScriptPromisePropertyBase(ExecutionContext*, Name);
+
+ void resolveOrReject(State targetState);
+
+ // ScriptPromiseProperty overrides these to wrap the holder,
+ // rejected value and resolved value. The
+ // ScriptPromisePropertyBase caller will enter the V8Context for
+ // the property's execution context and the world it is
+ // creating/settling promises in; the implementation should use
+ // this context.
+ virtual v8::Handle<v8::Object> holder(v8::Handle<v8::Object> creationContext, v8::Isolate*) = 0;
+ virtual v8::Handle<v8::Value> resolvedValue(v8::Handle<v8::Object> creationContext, v8::Isolate*) = 0;
+ virtual v8::Handle<v8::Value> rejectedValue(v8::Handle<v8::Object> creationContext, v8::Isolate*) = 0;
+
+private:
+ void resolveOrRejectInternal(v8::Handle<v8::Promise::Resolver>);
+
+ v8::Handle<v8::String> promiseName();
+ v8::Handle<v8::String> resolverName();
+
+ v8::Isolate* m_isolate;
+ Name m_name;
+ State m_state;
+
+ // FIXME: When isolated worlds are supported replace this with a
+ // set of wrappers.
+ ScopedPersistent<v8::Object> m_mainWorldWrapper;
+};
+
+} // namespace WebCore
+
+#endif // ScriptPromisePropertyBase_h
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