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// Copyright 2014 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/browser/task_manager/tab_contents_information.h"
#include "base/callback.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/devtools/devtools_window.h"
#include "chrome/browser/favicon/favicon_tab_helper.h"
#include "chrome/browser/prerender/prerender_manager.h"
#include "chrome/browser/prerender/prerender_manager_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/task_manager/renderer_resource.h"
#include "chrome/browser/task_manager/task_manager_util.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_finder.h"
#include "chrome/browser/ui/browser_iterator.h"
#include "chrome/browser/ui/tab_contents/tab_contents_iterator.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/process_map.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension_set.h"
#include "grit/theme_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/image/image_skia.h"
using content::WebContents;
namespace task_manager {
namespace {
// Returns true if the WebContents is currently owned by the prerendering
// manager.
bool IsContentsPrerendering(WebContents* web_contents) {
Profile* profile =
Profile::FromBrowserContext(web_contents->GetBrowserContext());
prerender::PrerenderManager* prerender_manager =
prerender::PrerenderManagerFactory::GetForProfile(profile);
return prerender_manager &&
prerender_manager->IsWebContentsPrerendering(web_contents, NULL);
}
} // namespace
// Tracks a single tab contents, prerendered page, or Instant page.
class TabContentsResource : public RendererResource {
public:
explicit TabContentsResource(content::WebContents* web_contents);
~TabContentsResource() override;
// Resource methods:
Type GetType() const override;
base::string16 GetTitle() const override;
gfx::ImageSkia GetIcon() const override;
content::WebContents* GetWebContents() const override;
private:
// Returns true if contains content rendered by an extension.
bool HostsExtension() const;
static gfx::ImageSkia* prerender_icon_;
content::WebContents* web_contents_;
Profile* profile_;
DISALLOW_COPY_AND_ASSIGN(TabContentsResource);
};
gfx::ImageSkia* TabContentsResource::prerender_icon_ = NULL;
TabContentsResource::TabContentsResource(WebContents* web_contents)
: RendererResource(web_contents->GetRenderProcessHost()->GetHandle(),
web_contents->GetRenderViewHost()),
web_contents_(web_contents),
profile_(Profile::FromBrowserContext(web_contents->GetBrowserContext())) {
if (!prerender_icon_) {
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
prerender_icon_ = rb.GetImageSkiaNamed(IDR_PRERENDER);
}
}
TabContentsResource::~TabContentsResource() {}
bool TabContentsResource::HostsExtension() const {
return web_contents_->GetURL().SchemeIs(extensions::kExtensionScheme);
}
Resource::Type TabContentsResource::GetType() const {
// A tab that loads an extension URL is considered to be an extension for
// these purposes, although it's tracked as a TabContentsResource.
return HostsExtension() ? EXTENSION : RENDERER;
}
base::string16 TabContentsResource::GetTitle() const {
// Fall back on the URL if there's no title.
GURL url = web_contents_->GetURL();
base::string16 tab_title = util::GetTitleFromWebContents(web_contents_);
// Only classify as an app if the URL is an app and the tab is hosting an
// extension process. (It's possible to be showing the URL from before it
// was installed as an app.)
extensions::ProcessMap* process_map = extensions::ProcessMap::Get(profile_);
bool is_app =
extensions::ExtensionRegistry::Get(profile_)
->enabled_extensions().GetAppByURL(url) != NULL &&
process_map->Contains(web_contents_->GetRenderProcessHost()->GetID());
int message_id = util::GetMessagePrefixID(
is_app,
HostsExtension(),
profile_->IsOffTheRecord(),
IsContentsPrerendering(web_contents_),
false); // is_background
return l10n_util::GetStringFUTF16(message_id, tab_title);
}
gfx::ImageSkia TabContentsResource::GetIcon() const {
if (IsContentsPrerendering(web_contents_))
return *prerender_icon_;
FaviconTabHelper::CreateForWebContents(web_contents_);
return FaviconTabHelper::FromWebContents(web_contents_)->
GetFavicon().AsImageSkia();
}
WebContents* TabContentsResource::GetWebContents() const {
return web_contents_;
}
TabContentsInformation::TabContentsInformation() {}
TabContentsInformation::~TabContentsInformation() {}
bool TabContentsInformation::CheckOwnership(
content::WebContents* web_contents) {
return chrome::FindBrowserWithWebContents(web_contents) ||
DevToolsWindow::IsDevToolsWindow(web_contents) ||
IsContentsPrerendering(web_contents);
}
void TabContentsInformation::GetAll(const NewWebContentsCallback& callback) {
for (TabContentsIterator iterator; !iterator.done(); iterator.Next()) {
callback.Run(*iterator);
WebContents* devtools =
DevToolsWindow::GetInTabWebContents(*iterator, NULL);
if (devtools)
callback.Run(devtools);
}
// Because a WebContents* may start its life as a prerender, and later be
// put into a tab, this class tracks the prerender contents in the same
// way as the tab contents.
std::vector<Profile*> profiles(
g_browser_process->profile_manager()->GetLoadedProfiles());
for (size_t i = 0; i < profiles.size(); ++i) {
prerender::PrerenderManager* prerender_manager =
prerender::PrerenderManagerFactory::GetForProfile(profiles[i]);
if (prerender_manager) {
const std::vector<content::WebContents*> contentses =
prerender_manager->GetAllPrerenderingContents();
for (size_t j = 0; j < contentses.size(); ++j)
callback.Run(contentses[j]);
}
}
}
scoped_ptr<RendererResource> TabContentsInformation::MakeResource(
content::WebContents* web_contents) {
return scoped_ptr<RendererResource>(new TabContentsResource(web_contents));
}
} // namespace task_manager
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