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Enable using custom events when emitting

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This commit is contained in:
Cheng Zhao 2015-07-29 14:24:45 +08:00
parent d42fd6fc7e
commit 625143426a
2 changed files with 33 additions and 8 deletions
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13
atom/browser/api/event_emitter.cc
View file

@ -37,9 +37,8 @@ v8::Local<v8::Object> CreateEventObject(v8::Isolate* isolate) {
EventEmitter::EventEmitter() {
}
v8::Local<v8::Object> EventEmitter::CreateJSEvent(v8::Isolate* isolate,
content::WebContents* sender,
IPC::Message* message) {
v8::Local<v8::Object> EventEmitter::CreateJSEvent(
v8::Isolate* isolate, content::WebContents* sender, IPC::Message* message) {
v8::Local<v8::Object> event;
bool use_native_event = sender && message;
@ -54,4 +53,12 @@ v8::Local<v8::Object> EventEmitter::CreateJSEvent(v8::Isolate* isolate,
return event;
}
v8::Local<v8::Object> EventEmitter::CreateCustomEvent(
v8::Isolate* isolate, v8::Local<v8::Object> custom_event) {
v8::Local<v8::Object> event = CreateEventObject(isolate);
event->SetPrototype(custom_event->CreationContext(), custom_event);
mate::Dictionary(isolate, event).Set("sender", GetWrapper(isolate));
return event;
}
} // namespace mate

28
atom/browser/api/event_emitter.h
View file

@ -25,6 +25,14 @@ class EventEmitter : public Wrappable {
public:
typedef std::vector<v8::Local<v8::Value>> ValueArray;
// this.emit(name, event, args...);
template<typename... Args>
bool EmitCustomEvent(const base::StringPiece& name,
v8::Local<v8::Object> event,
const Args&... args) {
return EmitWithEvent(name, CreateCustomEvent(isolate(), event), args...);
}
// this.emit(name, new Event(), args...);
template<typename... Args>
bool Emit(const base::StringPiece& name, const Args&... args) {
@ -37,21 +45,31 @@ class EventEmitter : public Wrappable {
content::WebContents* sender,
IPC::Message* message,
const Args&... args) {
v8::Locker locker(isolate());
v8::HandleScope handle_scope(isolate());
v8::Local<v8::Object> event = CreateJSEvent(isolate(), sender, message);
EmitEvent(isolate(), GetWrapper(isolate()), name, event, args...);
return event->Get(
StringToV8(isolate(), "defaultPrevented"))->BooleanValue();
return EmitWithEvent(name, event, args...);
}
protected:
EventEmitter();
private:
// this.emit(name, event, args...);
template<typename... Args>
bool EmitWithEvent(const base::StringPiece& name,
v8::Local<v8::Object> event,
const Args&... args) {
v8::Locker locker(isolate());
v8::HandleScope handle_scope(isolate());
EmitEvent(isolate(), GetWrapper(isolate()), name, event, args...);
return event->Get(
StringToV8(isolate(), "defaultPrevented"))->BooleanValue();
}
v8::Local<v8::Object> CreateJSEvent(v8::Isolate* isolate,
content::WebContents* sender,
IPC::Message* message);
v8::Local<v8::Object> CreateCustomEvent(
v8::Isolate* isolate, v8::Local<v8::Object> event);
DISALLOW_COPY_AND_ASSIGN(EventEmitter);
};