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Convert arguments to V8 directly in EventEmitter::Emmit

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This gets rid of the extra conversion between ListValue.
This commit is contained in:
Cheng Zhao 2015-01-14 17:51:54 -08:00
parent 65d2540807
commit 2d6dc9c527
10 changed files with 68 additions and 134 deletions
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40
atom/browser/api/event_emitter.h
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@ -9,10 +9,6 @@
#include "native_mate/wrappable.h"
namespace base {
class ListValue;
}
namespace content {
class WebContents;
}
@ -26,29 +22,39 @@ namespace mate {
// Provide helperers to emit event in JavaScript.
class EventEmitter : public Wrappable {
public:
typedef std::vector<v8::Handle<v8::Value>> Arguments;
typedef std::vector<v8::Handle<v8::Value>> ValueArray;
protected:
EventEmitter();
// this.emit(name, new Event());
bool Emit(const base::StringPiece& name);
// this.emit(name, new Event(), args...);
bool Emit(const base::StringPiece& name, const base::ListValue& args);
template<typename... Args>
bool Emit(const base::StringPiece& name, const Args&... args) {
return EmitWithSender(name, nullptr, nullptr, args...);
}
// this.emit(name, new Event(sender, message), args...);
bool Emit(const base::StringPiece& name, const base::ListValue& args,
content::WebContents* sender, IPC::Message* message);
template<typename... Args>
bool EmitWithSender(const base::StringPiece& name,
content::WebContents* sender,
IPC::Message* message,
const Args&... args) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Locker locker(isolate);
v8::HandleScope handle_scope(isolate);
// Lower level implementations.
bool Emit(v8::Isolate* isolate,
const base::StringPiece& name,
Arguments args,
content::WebContents* sender = nullptr,
IPC::Message* message = nullptr);
ValueArray converted = { ConvertToV8(isolate, args)... };
return CallEmit(isolate, name, sender, message, converted);
}
private:
// Lower level implementations.
bool CallEmit(v8::Isolate* isolate,
const base::StringPiece& name,
content::WebContents* sender,
IPC::Message* message,
ValueArray args);
DISALLOW_COPY_AND_ASSIGN(EventEmitter);
};