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// Copyright 2014 The Chromium Authors
// 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/shelf/app_window_shelf_controller.h"
#include "ash/public/cpp/shelf_model.h"
#include "ash/shell.h"
#include "chrome/browser/ui/ash/shelf/app_window_shelf_item_controller.h"
#include "chrome/browser/ui/ash/shelf/chrome_shelf_controller.h"
#include "ui/wm/public/activation_client.h"
AppWindowShelfController::AppWindowShelfController(ChromeShelfController* owner)
: owner_(owner) {
// TODO: this doesn't work in mash: https://crbug.com/826386 .
if (ash::Shell::HasInstance() && ash::Shell::Get()->GetPrimaryRootWindow()) {
activation_client_ =
wm::GetActivationClient(ash::Shell::Get()->GetPrimaryRootWindow());
if (activation_client_) {
activation_client_->AddObserver(this);
}
}
owner->shelf_model()->AddObserver(this);
}
AppWindowShelfController::~AppWindowShelfController() {
owner()->shelf_model()->RemoveObserver(this);
if (activation_client_) {
activation_client_->RemoveObserver(this);
}
}
void AppWindowShelfController::OnWindowActivated(
wm::ActivationChangeObserver::ActivationReason reason,
aura::Window* new_active,
aura::Window* old_active) {
// Make the newly active window the active (first) entry in the controller.
AppWindowShelfItemController* new_controller =
ControllerForWindow(new_active);
if (new_controller) {
new_controller->SetActiveWindow(new_active);
}
// Mark the old active window's shelf item as running (if different).
AppWindowShelfItemController* old_controller =
ControllerForWindow(old_active);
if (old_controller && old_controller != new_controller) {
owner_->SetItemStatus(old_controller->shelf_id(), ash::STATUS_RUNNING);
}
}
void AppWindowShelfController::ShelfItemDelegateChanged(
const ash::ShelfID& id,
ash::ShelfItemDelegate* old_delegate,
ash::ShelfItemDelegate* delegate) {
DCHECK(old_delegate);
// Notify the shelf controller that its delegate might be destroyed and
// cache needs to be updated. See crbug.com/770005
OnItemDelegateDiscarded(old_delegate);
}
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