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Allow passing V8 objects in EventEmitter

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This commit is contained in:
Cheng Zhao 2014-10-25 11:30:35 +08:00
parent 485bd7bbd3
commit d8447524cb
2 changed files with 35 additions and 15 deletions
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38
atom/browser/api/event_emitter.cc
View file

@ -4,8 +4,6 @@
#include "atom/browser/api/event_emitter.h"
#include <vector>
#include "atom/browser/api/event.h"
#include "atom/common/native_mate_converters/v8_value_converter.h"
#include "base/memory/scoped_ptr.h"
@ -64,6 +62,23 @@ bool EventEmitter::Emit(const base::StringPiece& name,
v8::Handle<v8::Context> context = isolate->GetCurrentContext();
scoped_ptr<atom::V8ValueConverter> converter(new atom::V8ValueConverter);
// v8_args = [args...];
Arguments v8_args;
v8_args.reserve(args.GetSize());
for (size_t i = 0; i < args.GetSize(); i++) {
const base::Value* value(NULL);
if (args.Get(i, &value))
v8_args.push_back(converter->ToV8Value(value, context));
}
return Emit(isolate, name, v8_args, sender, message);
}
bool EventEmitter::Emit(v8::Isolate* isolate,
const base::StringPiece& name,
Arguments args,
content::WebContents* sender,
IPC::Message* message) {
v8::Handle<v8::Object> event;
bool use_native_event = sender && message;
@ -75,20 +90,13 @@ bool EventEmitter::Emit(const base::StringPiece& name,
event = CreateEventObject(isolate);
}
// v8_args = [name, event, args...];
std::vector<v8::Handle<v8::Value>> v8_args;
v8_args.reserve(args.GetSize() + 2);
v8_args.push_back(mate::StringToV8(isolate, name));
v8_args.push_back(event);
for (size_t i = 0; i < args.GetSize(); i++) {
const base::Value* value(NULL);
if (args.Get(i, &value))
v8_args.push_back(converter->ToV8Value(value, context));
}
// args = [name, event, args...];
args.insert(args.begin(), event);
args.insert(args.begin(), mate::StringToV8(isolate, name));
// this.emit.apply(this, v8_args);
node::MakeCallback(isolate, GetWrapper(isolate), "emit", v8_args.size(),
&v8_args[0]);
// this.emit.apply(this, args);
node::MakeCallback(isolate, GetWrapper(isolate), "emit", args.size(),
&args[0]);
if (use_native_event) {
Handle<Event> native_event;

12
atom/browser/api/event_emitter.h
View file

@ -5,6 +5,8 @@
#ifndef ATOM_BROWSER_API_EVENT_EMITTER_H_
#define ATOM_BROWSER_API_EVENT_EMITTER_H_
#include <vector>
#include "native_mate/wrappable.h"
namespace base {
@ -23,6 +25,9 @@ namespace mate {
// Provide helperers to emit event in JavaScript.
class EventEmitter : public Wrappable {
public:
typedef std::vector<v8::Handle<v8::Value>> Arguments;
protected:
EventEmitter();
@ -36,6 +41,13 @@ class EventEmitter : public Wrappable {
bool Emit(const base::StringPiece& name, const base::ListValue& args,
content::WebContents* sender, IPC::Message* message);
// Lower level implementations.
bool Emit(v8::Isolate* isolate,
const base::StringPiece& name,
Arguments args,
content::WebContents* sender = nullptr,
IPC::Message* message = nullptr);
private:
DISALLOW_COPY_AND_ASSIGN(EventEmitter);
};