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// Copyright 2015 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_management/providers/web_contents/renderer_task.h"
#include "base/i18n/rtl.h"
#include "base/numerics/safe_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/favicon/favicon_utils.h"
#include "chrome/browser/process_resource_usage.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_info_cache.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/task_management/task_manager_observer.h"
#include "chrome/grit/generated_resources.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/common/service_registry.h"
#include "ui/base/l10n/l10n_util.h"
namespace task_management {
namespace {
// Creates the Mojo service wrapper that will be used to sample the V8 memory
// usage and the the WebCache resource stats of the render process hosted by
// |render_process_host|.
ProcessResourceUsage* CreateRendererResourcesSampler(
content::RenderProcessHost* render_process_host) {
ResourceUsageReporterPtr service;
content::ServiceRegistry* service_registry =
render_process_host->GetServiceRegistry();
if (service_registry)
service_registry->ConnectToRemoteService(mojo::GetProxy(&service));
return new ProcessResourceUsage(service.Pass());
}
// Gets the profile name associated with the browser context of the given
// |render_process_host| from the profile info cache.
base::string16 GetRendererProfileName(
const content::RenderProcessHost* render_process_host) {
Profile* profile =
Profile::FromBrowserContext(render_process_host->GetBrowserContext());
DCHECK(profile);
ProfileInfoCache& cache =
g_browser_process->profile_manager()->GetProfileInfoCache();
size_t index =
cache.GetIndexOfProfileWithPath(profile->GetOriginalProfile()->GetPath());
if (index != std::string::npos)
return cache.GetNameOfProfileAtIndex(index);
return base::string16();
}
inline bool IsRendererResourceSamplingDisabled(int64 flags) {
return (flags & (REFRESH_TYPE_V8_MEMORY | REFRESH_TYPE_WEBCACHE_STATS)) == 0;
}
} // namespace
RendererTask::RendererTask(const base::string16& title,
const gfx::ImageSkia* icon,
content::WebContents* web_contents,
content::RenderProcessHost* render_process_host)
: Task(title, icon, render_process_host->GetHandle()),
web_contents_(web_contents),
render_process_host_(render_process_host),
renderer_resources_sampler_(
CreateRendererResourcesSampler(render_process_host_)),
render_process_id_(render_process_host_->GetID()),
v8_memory_allocated_(0),
v8_memory_used_(0),
webcache_stats_(),
profile_name_(GetRendererProfileName(render_process_host_)) {
// All renderer tasks are capable of reporting network usage, so the default
// invalid value of -1 doesn't apply here.
OnNetworkBytesRead(0);
// Tag the web_contents with a |ContentFaviconDriver| (if needed) so that
// we can use it to observe favicons changes.
favicon::CreateContentFaviconDriverForWebContents(web_contents);
favicon::ContentFaviconDriver::FromWebContents(web_contents)->AddObserver(
this);
}
RendererTask::~RendererTask() {
favicon::ContentFaviconDriver::FromWebContents(web_contents())->
RemoveObserver(this);
}
void RendererTask::Activate() {
if (!web_contents_->GetDelegate())
return;
web_contents_->GetDelegate()->ActivateContents(web_contents_);
}
void RendererTask::Refresh(const base::TimeDelta& update_interval,
int64 refresh_flags) {
Task::Refresh(update_interval, refresh_flags);
if (IsRendererResourceSamplingDisabled(refresh_flags))
return;
// The renderer resources refresh is performed asynchronously, we will invoke
// it and record the current values (which might be invalid at the moment. We
// can safely ignore that and count on future refresh cycles potentially
// having valid values).
renderer_resources_sampler_->Refresh(base::Closure());
v8_memory_allocated_ = base::saturated_cast<int64>(
renderer_resources_sampler_->GetV8MemoryAllocated());
v8_memory_used_ = base::saturated_cast<int64>(
renderer_resources_sampler_->GetV8MemoryUsed());
webcache_stats_ = renderer_resources_sampler_->GetWebCoreCacheStats();
}
Task::Type RendererTask::GetType() const {
return Task::RENDERER;
}
int RendererTask::GetChildProcessUniqueID() const {
return render_process_id_;
}
base::string16 RendererTask::GetProfileName() const {
return profile_name_;
}
int64 RendererTask::GetV8MemoryAllocated() const {
return v8_memory_allocated_;
}
int64 RendererTask::GetV8MemoryUsed() const {
return v8_memory_used_;
}
bool RendererTask::ReportsWebCacheStats() const {
return true;
}
blink::WebCache::ResourceTypeStats RendererTask::GetWebCacheStats() const {
return webcache_stats_;
}
void RendererTask::OnFaviconAvailable(const gfx::Image& image) {
}
void RendererTask::OnFaviconUpdated(favicon::FaviconDriver* favicon_driver,
bool icon_url_changed) {
UpdateFavicon();
}
// static
base::string16 RendererTask::GetTitleFromWebContents(
content::WebContents* web_contents) {
DCHECK(web_contents);
base::string16 title = web_contents->GetTitle();
if (title.empty()) {
GURL url = web_contents->GetURL();
title = base::UTF8ToUTF16(url.spec());
// Force URL to be LTR.
title = base::i18n::GetDisplayStringInLTRDirectionality(title);
} else {
// Since the title could later be concatenated with
// IDS_TASK_MANAGER_TAB_PREFIX (for example), we need to explicitly set the
// title to be LTR format if there is no strong RTL charater in it.
// Otherwise, if IDS_TASK_MANAGER_TAB_PREFIX is an RTL word, the
// concatenated result might be wrong. For example, http://mail.yahoo.com,
// whose title is "Yahoo! Mail: The best web-based Email!", without setting
// it explicitly as LTR format, the concatenated result will be "!Yahoo!
// Mail: The best web-based Email :BAT", in which the capital letters "BAT"
// stands for the Hebrew word for "tab".
base::i18n::AdjustStringForLocaleDirection(&title);
}
return title;
}
// static
const gfx::ImageSkia* RendererTask::GetFaviconFromWebContents(
content::WebContents* web_contents) {
DCHECK(web_contents);
// Tag the web_contents with a |ContentFaviconDriver| (if needed) so that
// we can use it to retrieve the favicon if there is one.
favicon::CreateContentFaviconDriverForWebContents(web_contents);
gfx::Image image =
favicon::ContentFaviconDriver::FromWebContents(web_contents)->
GetFavicon();
if (image.IsEmpty())
return nullptr;
return image.ToImageSkia();
}
// static
const base::string16 RendererTask::PrefixRendererTitle(
const base::string16& title,
bool is_app,
bool is_extension,
bool is_incognito,
bool is_background) {
int message_id = IDS_TASK_MANAGER_TAB_PREFIX;
if (is_incognito && !is_app && !is_extension) {
message_id = IDS_TASK_MANAGER_TAB_INCOGNITO_PREFIX;
} else if (is_app) {
if (is_background)
message_id = IDS_TASK_MANAGER_BACKGROUND_PREFIX;
else if (is_incognito)
message_id = IDS_TASK_MANAGER_APP_INCOGNITO_PREFIX;
else
message_id = IDS_TASK_MANAGER_APP_PREFIX;
} else if (is_extension) {
if (is_incognito)
message_id = IDS_TASK_MANAGER_EXTENSION_INCOGNITO_PREFIX;
else
message_id = IDS_TASK_MANAGER_EXTENSION_PREFIX;
}
return l10n_util::GetStringFUTF16(message_id, title);
}
} // namespace task_management
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