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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/browser/ui/views/ash/launcher/launcher_updater.h"
#include "ash/launcher/launcher.h"
#include "ash/launcher/launcher_model.h"
#include "ash/shell.h"
#include "ash/wm/window_util.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/extension_tab_helper.h"
#include "chrome/browser/favicon/favicon_tab_helper.h"
#include "chrome/browser/tabs/tab_strip_model.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
#include "chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.h"
#include "chrome/browser/web_applications/web_app.h"
#include "content/public/browser/web_contents.h"
#include "grit/ui_resources.h"
#include "ui/aura/window.h"
#include "ui/base/resource/resource_bundle.h"
namespace {
ChromeLauncherDelegate::AppType GetDelegateType(LauncherUpdater::Type type) {
switch (type) {
case LauncherUpdater::TYPE_APP:
return ChromeLauncherDelegate::APP_TYPE_WINDOW;
case LauncherUpdater::TYPE_APP_PANEL:
return ChromeLauncherDelegate::APP_TYPE_APP_PANEL;
case LauncherUpdater::TYPE_EXTENSION_PANEL:
return ChromeLauncherDelegate::APP_TYPE_EXTENSION_PANEL;
case LauncherUpdater::TYPE_TABBED:
NOTREACHED();
}
return ChromeLauncherDelegate::APP_TYPE_WINDOW;
}
} // namespace
LauncherUpdater::LauncherUpdater(aura::Window* window,
TabStripModel* tab_model,
ChromeLauncherDelegate* delegate,
Type type,
const std::string& app_id)
: window_(window),
tab_model_(tab_model),
launcher_delegate_(delegate),
type_(type),
app_id_(app_id),
is_incognito_(tab_model->profile()->GetOriginalProfile() !=
tab_model->profile()),
item_id_(-1) {
}
LauncherUpdater::~LauncherUpdater() {
tab_model_->RemoveObserver(this);
if (item_id_ != -1)
launcher_delegate_->LauncherItemClosed(item_id_);
}
void LauncherUpdater::Init() {
tab_model_->AddObserver(this);
if (type_ != TYPE_TABBED) {
ChromeLauncherDelegate::AppType app_type = GetDelegateType(type_);
ash::LauncherItemStatus app_status =
ash::wm::IsActiveWindow(window_) ?
ash::STATUS_ACTIVE : ash::STATUS_RUNNING;
item_id_ = launcher_delegate_->CreateAppLauncherItem(
this, app_id_, app_type, app_status);
} else {
item_id_ = launcher_delegate_->CreateTabbedLauncherItem(
this,
is_incognito_ ? ChromeLauncherDelegate::STATE_INCOGNITO :
ChromeLauncherDelegate::STATE_NOT_INCOGNITO);
}
// In testing scenarios we can get tab strips with no active contents.
if (tab_model_->GetActiveTabContents())
UpdateLauncher(tab_model_->GetActiveTabContents());
}
// static
LauncherUpdater* LauncherUpdater::Create(Browser* browser) {
Type type;
std::string app_id;
if (browser->type() == Browser::TYPE_TABBED) {
type = TYPE_TABBED;
} else if (browser->is_app()) {
if (browser->is_type_panel()) {
if (browser->app_type() == Browser::APP_TYPE_CHILD)
type = TYPE_EXTENSION_PANEL;
else
type = TYPE_APP_PANEL;
} else {
type = TYPE_APP;
}
app_id = web_app::GetExtensionIdFromApplicationName(browser->app_name());
} else {
return NULL;
}
LauncherUpdater* icon_updater = new LauncherUpdater(
browser->window()->GetNativeHandle(), browser->tabstrip_model(),
ChromeLauncherDelegate::instance(), type, app_id);
icon_updater->Init();
return icon_updater;
}
void LauncherUpdater::BrowserActivationStateChanged() {
launcher_delegate_->SetItemStatus(
item_id_,
ash::wm::IsActiveWindow(window_) ?
ash::STATUS_ACTIVE : ash::STATUS_RUNNING);
}
void LauncherUpdater::ActiveTabChanged(TabContentsWrapper* old_contents,
TabContentsWrapper* new_contents,
int index,
bool user_gesture) {
// Update immediately on a tab change.
UpdateLauncher(new_contents);
}
void LauncherUpdater::TabChangedAt(
TabContentsWrapper* tab,
int index,
TabStripModelObserver::TabChangeType change_type) {
if (index != tab_model_->active_index() ||
!(change_type != TabStripModelObserver::LOADING_ONLY &&
change_type != TabStripModelObserver::TITLE_NOT_LOADING)) {
return;
}
if (tab->favicon_tab_helper()->FaviconIsValid() ||
!tab->favicon_tab_helper()->ShouldDisplayFavicon()) {
// We have the favicon, update immediately.
UpdateLauncher(tab);
} else {
// Let the model know we're waiting. We delay updating as otherwise the user
// sees flicker as we fetch the favicon.
int item_index = launcher_model()->ItemIndexByID(item_id_);
if (item_index == -1)
return;
launcher_model()->SetPendingUpdate(item_index);
}
}
void LauncherUpdater::FaviconUpdated() {
UpdateLauncher(tab_model_->GetActiveTabContents());
}
void LauncherUpdater::UpdateLauncher(TabContentsWrapper* tab) {
if (!tab)
return; // Assume the window is going to be closed if there are no tabs.
if (type_ == TYPE_APP)
return; // TYPE_APP is entirely maintained by ChromeLauncherDelegate.
int item_index = launcher_model()->ItemIndexByID(item_id_);
if (item_index == -1)
return;
ash::LauncherItem item = launcher_model()->items()[item_index];
if (type_ != TYPE_TABBED) {
SkBitmap new_image;
if (type_ == TYPE_EXTENSION_PANEL) {
if (!favicon_loader_.get() ||
favicon_loader_->web_contents() != tab->web_contents()) {
favicon_loader_.reset(
new LauncherFaviconLoader(this, tab->web_contents()));
}
// Update the icon for app panels.
new_image = favicon_loader_->GetFavicon();
if (new_image.empty()) {
if (tab->extension_tab_helper()->GetExtensionAppIcon())
new_image = *tab->extension_tab_helper()->GetExtensionAppIcon();
}
} else {
// Use the app icon if we can.
if (tab->extension_tab_helper()->GetExtensionAppIcon())
new_image = *tab->extension_tab_helper()->GetExtensionAppIcon();
else
new_image = tab->favicon_tab_helper()->GetFavicon();
}
// Only update the icon if we have a new image, or none has been set yet.
// This avoids flickering to an empty image when a pinned app is opened.
if (!new_image.empty())
item.image = new_image;
else if (item.image.empty())
item.image = Extension::GetDefaultIcon(true);
} else {
if (tab->favicon_tab_helper()->ShouldDisplayFavicon()) {
item.image = tab->favicon_tab_helper()->GetFavicon();
if (item.image.empty()) {
item.image = *ResourceBundle::GetSharedInstance().GetBitmapNamed(
IDR_DEFAULT_FAVICON);
}
} else {
item.image = *ResourceBundle::GetSharedInstance().GetBitmapNamed(
IDR_DEFAULT_FAVICON);
}
}
launcher_model()->Set(item_index, item);
}
ash::LauncherModel* LauncherUpdater::launcher_model() {
return launcher_delegate_->model();
}
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