82 lines
		
	
	
	
		
			2.4 KiB
			
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
	
		
			2.4 KiB
			
		
	
	
	
		
			C++
		
	
	
	
	
	
// Copyright (c) 2014 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "atom/browser/api/event_emitter.h"
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#include "atom/browser/api/event.h"
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#include "native_mate/arguments.h"
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#include "native_mate/dictionary.h"
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#include "native_mate/object_template_builder.h"
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#include "ui/events/event_constants.h"
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#include "atom/common/node_includes.h"
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namespace mate {
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namespace {
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v8::Persistent<v8::ObjectTemplate> event_template;
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void PreventDefault(mate::Arguments* args) {
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  mate::Dictionary self(args->isolate(), args->GetThis());
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  self.Set("defaultPrevented", true);
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}
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// Create a pure JavaScript Event object.
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v8::Local<v8::Object> CreateEventObject(v8::Isolate* isolate) {
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  if (event_template.IsEmpty()) {
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    event_template.Reset(isolate, ObjectTemplateBuilder(isolate)
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        .SetMethod("preventDefault", &PreventDefault)
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        .Build());
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  }
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  return v8::Local<v8::ObjectTemplate>::New(
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      isolate, event_template)->NewInstance();
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}
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}  // namespace
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namespace internal {
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v8::Local<v8::Object> CreateJSEvent(
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    v8::Isolate* isolate,
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    v8::Local<v8::Object> object,
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    content::WebContents* sender,
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    IPC::Message* message) {
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  v8::Local<v8::Object> event;
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  bool use_native_event = sender && message;
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  if (use_native_event) {
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    mate::Handle<mate::Event> native_event = mate::Event::Create(isolate);
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    native_event->SetSenderAndMessage(sender, message);
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    event = v8::Local<v8::Object>::Cast(native_event.ToV8());
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  } else {
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    event = CreateEventObject(isolate);
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  }
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  mate::Dictionary(isolate, event).Set("sender", object);
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  return event;
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}
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v8::Local<v8::Object> CreateCustomEvent(
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    v8::Isolate* isolate,
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    v8::Local<v8::Object> object,
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    v8::Local<v8::Object> custom_event) {
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  v8::Local<v8::Object> event = CreateEventObject(isolate);
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  (void)event->SetPrototype(custom_event->CreationContext(), custom_event);
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  mate::Dictionary(isolate, event).Set("sender", object);
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  return event;
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}
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v8::Local<v8::Object> CreateEventFromFlags(v8::Isolate* isolate, int flags) {
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  mate::Dictionary obj = mate::Dictionary::CreateEmpty(isolate);
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  obj.Set("shiftKey", static_cast<bool>(flags & ui::EF_SHIFT_DOWN));
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  obj.Set("ctrlKey", static_cast<bool>(flags & ui::EF_CONTROL_DOWN));
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  obj.Set("altKey", static_cast<bool>(flags & ui::EF_ALT_DOWN));
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  obj.Set("metaKey", static_cast<bool>(flags & ui::EF_COMMAND_DOWN));
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  return obj.GetHandle();
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}
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}  // namespace internal
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}  // namespace mate
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