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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/extensions/app_window_custom_bindings.h"
#include <string>
#include "chrome/common/extensions/extension_messages.h"
#include "chrome/renderer/extensions/chrome_v8_context.h"
#include "chrome/renderer/extensions/dispatcher.h"
#include "content/public/renderer/render_thread.h"
#include "content/public/renderer/render_view.h"
#include "content/public/renderer/render_view_observer.h"
#include "content/public/renderer/render_view_visitor.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebScopedMicrotaskSuppression.h"
#include "v8/include/v8.h"
namespace extensions {
class DidCreateDocumentElementObserver : public content::RenderViewObserver {
public:
DidCreateDocumentElementObserver(
content::RenderView* view, Dispatcher* dispatcher)
: content::RenderViewObserver(view), dispatcher_(dispatcher) {
}
virtual void DidCreateDocumentElement(WebKit::WebFrame* frame) OVERRIDE {
DCHECK(frame);
DCHECK(dispatcher_);
// Don't attempt to inject the titlebar into iframes.
if (frame->parent())
return;
v8::HandleScope handle_scope;
ChromeV8Context* v8_context =
dispatcher_->v8_context_set().GetByV8Context(
frame->mainWorldScriptContext());
if (!v8_context)
return;
v8::Context::Scope context_scope(v8_context->v8_context());
v8_context->module_system()->CallModuleMethod(
"injectAppTitlebar", "didCreateDocumentElement");
}
private:
Dispatcher* dispatcher_;
};
AppWindowCustomBindings::AppWindowCustomBindings(Dispatcher* dispatcher)
: ChromeV8Extension(dispatcher) {
RouteFunction("GetView",
base::Bind(&AppWindowCustomBindings::GetView,
base::Unretained(this)));
RouteFunction("OnContextReady",
base::Bind(&AppWindowCustomBindings::OnContextReady,
base::Unretained(this)));
}
namespace {
class LoadWatcher : public content::RenderViewObserver {
public:
LoadWatcher(v8::Isolate* isolate,
content::RenderView* view,
v8::Handle<v8::Function> cb)
: content::RenderViewObserver(view),
isolate_(isolate),
callback_(v8::Persistent<v8::Function>::New(isolate, cb)) {
}
virtual void DidCreateDocumentElement(WebKit::WebFrame* frame) OVERRIDE {
CallbackAndDie(frame, true);
}
virtual void DidFailProvisionalLoad(
WebKit::WebFrame* frame,
const WebKit::WebURLError& error) OVERRIDE {
CallbackAndDie(frame, false);
}
virtual ~LoadWatcher() {
callback_.Dispose(isolate_);
}
private:
v8::Isolate* isolate_;
v8::Persistent<v8::Function> callback_;
void CallbackAndDie(WebKit::WebFrame* frame, bool succeeded) {
v8::HandleScope handle_scope;
v8::Local<v8::Context> context = frame->mainWorldScriptContext();
v8::Context::Scope scope(context);
v8::Local<v8::Object> global = context->Global();
{
WebKit::WebScopedMicrotaskSuppression suppression;
v8::Handle<v8::Value> args[] = {
succeeded ? v8::True() : v8::False()
};
callback_->Call(global, 1, args);
}
delete this;
}
};
} // namespace
v8::Handle<v8::Value> AppWindowCustomBindings::OnContextReady(
const v8::Arguments& args) {
if (args.Length() != 2)
return v8::Undefined();
if (!args[0]->IsInt32())
return v8::Undefined();
if (!args[1]->IsFunction())
return v8::Undefined();
int view_id = args[0]->Int32Value();
content::RenderView* view = content::RenderView::FromRoutingID(view_id);
if (!view)
return v8::Undefined();
v8::Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(args[1]);
new LoadWatcher(args.GetIsolate(), view, func);
return v8::True();
}
v8::Handle<v8::Value> AppWindowCustomBindings::GetView(
const v8::Arguments& args) {
// TODO(jeremya): convert this to IDL nocompile to get validation, and turn
// these argument checks into CHECK().
if (args.Length() != 2)
return v8::Undefined();
if (!args[0]->IsInt32())
return v8::Undefined();
if (!args[1]->IsBoolean())
return v8::Undefined();
int view_id = args[0]->Int32Value();
bool inject_titlebar = args[1]->BooleanValue();
if (view_id == MSG_ROUTING_NONE)
return v8::Undefined();
content::RenderView* view = content::RenderView::FromRoutingID(view_id);
if (!view)
return v8::Undefined();
if (inject_titlebar)
new DidCreateDocumentElementObserver(view, dispatcher());
// TODO(jeremya): it doesn't really make sense to set the opener here, but we
// need to make sure the security origin is set up before returning the DOM
// reference. A better way to do this would be to have the browser pass the
// opener through so opener_id is set in RenderViewImpl's constructor.
content::RenderView* render_view = GetCurrentRenderView();
if (!render_view)
return v8::Undefined();
WebKit::WebFrame* opener = render_view->GetWebView()->mainFrame();
WebKit::WebFrame* frame = view->GetWebView()->mainFrame();
frame->setOpener(opener);
content::RenderThread::Get()->Send(
new ExtensionHostMsg_ResumeRequests(view->GetRoutingID()));
v8::Local<v8::Value> window = frame->mainWorldScriptContext()->Global();
return window;
}
} // namespace extensions
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