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// Copyright 2013 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/ash/launcher/browser_status_monitor.h"
#include "ash/shell.h"
#include "ash/wm/window_util.h"
#include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_finder.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/web_applications/web_app.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_view.h"
#include "ui/aura/client/activation_client.h"
#include "ui/aura/root_window.h"
#include "ui/aura/window.h"
#include "ui/gfx/screen.h"
BrowserStatusMonitor::BrowserStatusMonitor(
ChromeLauncherController* launcher_controller)
: launcher_controller_(launcher_controller),
observed_activation_clients_(this),
observed_root_windows_(this) {
DCHECK(launcher_controller_);
BrowserList* browser_list =
BrowserList::GetInstance(chrome::HOST_DESKTOP_TYPE_ASH);
browser_list->AddObserver(this);
// This check needs for win7_aura. Without this, all tests in
// ChromeLauncherController will fail in win7_aura.
if (ash::Shell::HasInstance()) {
// We can't assume all RootWindows have the same ActivationClient.
// Add a RootWindow and its ActivationClient to the observed list.
ash::Shell::RootWindowList root_windows = ash::Shell::GetAllRootWindows();
ash::Shell::RootWindowList::const_iterator iter = root_windows.begin();
for (; iter != root_windows.end(); ++iter) {
// |observed_activation_clients_| can have the same activation client
// multiple times - which would be handled by the used
// |ScopedObserverWithDuplicatedSources|.
observed_activation_clients_.Add(
aura::client::GetActivationClient(*iter));
observed_root_windows_.Add(static_cast<aura::Window*>(*iter));
}
ash::Shell::GetInstance()->GetScreen()->AddObserver(this);
}
}
BrowserStatusMonitor::~BrowserStatusMonitor() {
// This check needs for win7_aura. Without this, all tests in
// ChromeLauncherController will fail in win7_aura.
if (ash::Shell::HasInstance())
ash::Shell::GetInstance()->GetScreen()->RemoveObserver(this);
BrowserList* browser_list =
BrowserList::GetInstance(chrome::HOST_DESKTOP_TYPE_ASH);
browser_list->RemoveObserver(this);
}
void BrowserStatusMonitor::OnWindowActivated(aura::Window* gained_active,
aura::Window* lost_active) {
Browser* browser = chrome::FindBrowserWithWindow(lost_active);
content::WebContents* active_contents = NULL;
if (browser) {
active_contents = browser->tab_strip_model()->GetActiveWebContents();
if (active_contents)
UpdateAppState(active_contents);
}
browser = chrome::FindBrowserWithWindow(gained_active);
if (browser) {
active_contents = browser->tab_strip_model()->GetActiveWebContents();
if (active_contents)
UpdateAppState(active_contents);
}
}
void BrowserStatusMonitor::OnWindowDestroyed(aura::Window* window) {
// Remove RootWindow and its ActivationClient from observed list.
observed_root_windows_.Remove(window);
observed_activation_clients_.Remove(aura::client::GetActivationClient(
static_cast<aura::RootWindow*>(window)));
}
void BrowserStatusMonitor::OnBrowserAdded(Browser* browser) {
browser->tab_strip_model()->AddObserver(this);
if (browser->is_type_popup() && browser->is_app()) {
std::string app_id =
web_app::GetExtensionIdFromApplicationName(browser->app_name());
if (!app_id.empty()) {
browser_to_app_id_map_[browser] = app_id;
launcher_controller_->LockV1AppWithID(app_id);
}
}
}
void BrowserStatusMonitor::OnBrowserRemoved(Browser* browser) {
browser->tab_strip_model()->RemoveObserver(this);
if (browser_to_app_id_map_.find(browser) != browser_to_app_id_map_.end()) {
launcher_controller_->UnlockV1AppWithID(browser_to_app_id_map_[browser]);
browser_to_app_id_map_.erase(browser);
}
launcher_controller_->UpdateBrowserItemStatus();
}
void BrowserStatusMonitor::OnDisplayBoundsChanged(
const gfx::Display& display) {
// Do nothing here.
}
void BrowserStatusMonitor::OnDisplayAdded(const gfx::Display& new_display) {
// Add a new RootWindow and its ActivationClient to observed list.
aura::RootWindow* root_window = ash::Shell::GetInstance()->
display_controller()->GetRootWindowForDisplayId(new_display.id());
observed_activation_clients_.Add(
aura::client::GetActivationClient(root_window));
}
void BrowserStatusMonitor::OnDisplayRemoved(const gfx::Display& old_display) {
// When this is called, RootWindow of |old_display| is already removed.
// Instead, we can remove RootWindow and its ActivationClient in the
// OnWindowRemoved().
// Do nothing here.
}
void BrowserStatusMonitor::ActiveTabChanged(content::WebContents* old_contents,
content::WebContents* new_contents,
int index,
int reason) {
Browser* browser = NULL;
if (old_contents)
browser = chrome::FindBrowserWithWebContents(old_contents);
// Update immediately on a tab change.
if (browser &&
(TabStripModel::kNoTab !=
browser->tab_strip_model()->GetIndexOfWebContents(old_contents)))
UpdateAppState(old_contents);
UpdateAppState(new_contents);
}
void BrowserStatusMonitor::TabInsertedAt(content::WebContents* contents,
int index,
bool foreground) {
UpdateAppState(contents);
}
void BrowserStatusMonitor::TabDetachedAt(content::WebContents* contents,
int index) {
launcher_controller_->UpdateAppState(
contents, ChromeLauncherController::APP_STATE_REMOVED);
}
void BrowserStatusMonitor::TabChangedAt(
content::WebContents* contents,
int index,
TabStripModelObserver::TabChangeType change_type) {
UpdateAppState(contents);
}
void BrowserStatusMonitor::TabReplacedAt(TabStripModel* tab_strip_model,
content::WebContents* old_contents,
content::WebContents* new_contents,
int index) {
launcher_controller_->UpdateAppState(
old_contents,
ChromeLauncherController::APP_STATE_REMOVED);
UpdateAppState(new_contents);
}
void BrowserStatusMonitor::UpdateAppState(content::WebContents* contents) {
if (!contents)
return;
ChromeLauncherController::AppState app_state =
ChromeLauncherController::APP_STATE_INACTIVE;
Browser* browser = chrome::FindBrowserWithWebContents(contents);
if (browser->tab_strip_model()->GetActiveWebContents() == contents) {
if (browser->window()->IsActive())
app_state = ChromeLauncherController::APP_STATE_WINDOW_ACTIVE;
else
app_state = ChromeLauncherController::APP_STATE_ACTIVE;
}
launcher_controller_->UpdateAppState(contents, app_state);
}
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