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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/chrome_v8_extension.h"
#include "base/logging.h"
#include "base/lazy_instance.h"
#include "base/stringprintf.h"
#include "base/string_util.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_set.h"
#include "chrome/common/extensions/api/extension_api.h"
#include "chrome/renderer/extensions/chrome_v8_context.h"
#include "chrome/renderer/extensions/extension_dispatcher.h"
#include "content/public/renderer/render_view.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
#include "ui/base/resource/resource_bundle.h"
using extensions::ExtensionAPI;
using WebKit::WebDocument;
using WebKit::WebFrame;
using WebKit::WebView;
namespace {
static base::LazyInstance<ChromeV8Extension::InstanceSet> g_instances =
LAZY_INSTANCE_INITIALIZER;
} // namespace
// static
content::RenderView* ChromeV8Extension::GetCurrentRenderView() {
WebFrame* webframe = WebFrame::frameForCurrentContext();
DCHECK(webframe) << "RetrieveCurrentFrame called when not in a V8 context.";
if (!webframe)
return NULL;
WebView* webview = webframe->view();
if (!webview)
return NULL; // can happen during closing
content::RenderView* renderview = content::RenderView::FromWebView(webview);
DCHECK(renderview) << "Encountered a WebView without a WebViewDelegate";
return renderview;
}
ChromeV8Extension::ChromeV8Extension(ExtensionDispatcher* extension_dispatcher)
: extension_dispatcher_(extension_dispatcher) {
g_instances.Get().insert(this);
}
ChromeV8Extension::~ChromeV8Extension() {
g_instances.Get().erase(this);
}
// static
const ChromeV8Extension::InstanceSet& ChromeV8Extension::GetAll() {
return g_instances.Get();
}
const extensions::Extension*
ChromeV8Extension::GetExtensionForCurrentRenderView() const {
content::RenderView* renderview = GetCurrentRenderView();
if (!renderview)
return NULL; // this can happen as a tab is closing.
WebDocument document = renderview->GetWebView()->mainFrame()->document();
GURL url = document.url();
const ExtensionSet* extensions = extension_dispatcher_->extensions();
if (!extensions->ExtensionBindingsAllowed(
ExtensionURLInfo(document.securityOrigin(), url)))
return NULL;
return extensions->GetExtensionOrAppByURL(
ExtensionURLInfo(document.securityOrigin(), url));
}
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