76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
// Copyright (c) 2019 GitHub, Inc.
|
|
// Use of this source code is governed by the MIT license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "shell/common/gin_helper/event_emitter.h"
|
|
|
|
#include "content/public/browser/render_frame_host.h"
|
|
#include "content/public/browser/render_process_host.h"
|
|
#include "shell/browser/api/event.h"
|
|
#include "shell/common/gin_helper/dictionary.h"
|
|
#include "shell/common/gin_helper/object_template_builder.h"
|
|
|
|
namespace gin_helper::internal {
|
|
|
|
namespace {
|
|
|
|
v8::Persistent<v8::ObjectTemplate> event_template;
|
|
|
|
void PreventDefault(gin_helper::Arguments* args) {
|
|
Dictionary self;
|
|
if (args->GetHolder(&self))
|
|
self.Set("defaultPrevented", true);
|
|
}
|
|
|
|
} // namespace
|
|
|
|
v8::Local<v8::Object> CreateCustomEvent(v8::Isolate* isolate,
|
|
v8::Local<v8::Object> sender,
|
|
v8::Local<v8::Object> custom_event) {
|
|
if (event_template.IsEmpty()) {
|
|
event_template.Reset(
|
|
isolate,
|
|
ObjectTemplateBuilder(isolate, v8::ObjectTemplate::New(isolate))
|
|
.SetMethod("preventDefault", &PreventDefault)
|
|
.Build());
|
|
}
|
|
|
|
v8::Local<v8::Context> context = isolate->GetCurrentContext();
|
|
CHECK(!context.IsEmpty());
|
|
v8::Local<v8::Object> event =
|
|
v8::Local<v8::ObjectTemplate>::New(isolate, event_template)
|
|
->NewInstance(context)
|
|
.ToLocalChecked();
|
|
if (!sender.IsEmpty())
|
|
Dictionary(isolate, event).Set("sender", sender);
|
|
if (!custom_event.IsEmpty())
|
|
event->SetPrototype(context, custom_event).IsJust();
|
|
return event;
|
|
}
|
|
|
|
v8::Local<v8::Object> CreateNativeEvent(
|
|
v8::Isolate* isolate,
|
|
v8::Local<v8::Object> sender,
|
|
content::RenderFrameHost* frame,
|
|
electron::mojom::ElectronApiIPC::MessageSyncCallback callback) {
|
|
v8::Local<v8::Object> event;
|
|
if (frame && callback) {
|
|
gin::Handle<Event> native_event = Event::Create(isolate);
|
|
native_event->SetCallback(std::move(callback));
|
|
event = native_event.ToV8().As<v8::Object>();
|
|
} else {
|
|
// No need to create native event if we do not need to send reply.
|
|
event = CreateCustomEvent(isolate);
|
|
}
|
|
|
|
Dictionary dict(isolate, event);
|
|
dict.Set("sender", sender);
|
|
// Should always set frameId even when callback is null.
|
|
if (frame) {
|
|
dict.Set("frameId", frame->GetRoutingID());
|
|
dict.Set("processId", frame->GetProcess()->GetID());
|
|
}
|
|
return event;
|
|
}
|
|
|
|
} // namespace gin_helper::internal
|