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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 "ash/launcher/launcher_model.h"
#include "ash/launcher/launcher_model_observer.h"
#include "ui/aura/window.h"
namespace ash {
LauncherModel::LauncherModel() : next_id_(1) {
Add(0, LauncherItem(TYPE_APP_LIST));
Add(1, LauncherItem(TYPE_BROWSER_SHORTCUT));
}
LauncherModel::~LauncherModel() {
}
void LauncherModel::Add(int index, const LauncherItem& item) {
DCHECK(index >= 0 && index <= item_count());
items_.insert(items_.begin() + index, item);
items_[index].id = next_id_++;
FOR_EACH_OBSERVER(LauncherModelObserver, observers_,
LauncherItemAdded(index));
}
void LauncherModel::RemoveItemAt(int index) {
DCHECK(index >= 0 && index < item_count());
// The app list and browser shortcut can't be removed.
DCHECK(items_[index].type != TYPE_APP_LIST &&
items_[index].type != TYPE_BROWSER_SHORTCUT);
LauncherID id = items_[index].id;
items_.erase(items_.begin() + index);
FOR_EACH_OBSERVER(LauncherModelObserver, observers_,
LauncherItemRemoved(index, id));
}
void LauncherModel::Move(int index, int target_index) {
if (index == target_index)
return;
LauncherItem item(items_[index]);
items_.erase(items_.begin() + index);
items_.insert(items_.begin() + target_index, item);
FOR_EACH_OBSERVER(LauncherModelObserver, observers_,
LauncherItemMoved(index, target_index));
}
void LauncherModel::Set(int index, const LauncherItem& item) {
DCHECK(index >= 0 && index < item_count());
LauncherItem old_item(items_[index]);
items_[index] = item;
items_[index].id = old_item.id;
FOR_EACH_OBSERVER(LauncherModelObserver, observers_,
LauncherItemChanged(index, old_item));
}
void LauncherModel::SetPendingUpdate(int index) {
FOR_EACH_OBSERVER(LauncherModelObserver, observers_,
LauncherItemWillChange(index));
}
int LauncherModel::ItemIndexByID(LauncherID id) {
LauncherItems::const_iterator i = ItemByID(id);
return i == items_.end() ? -1 : static_cast<int>(i - items_.begin());
}
LauncherItems::const_iterator LauncherModel::ItemByID(int id) const {
for (LauncherItems::const_iterator i = items_.begin();
i != items_.end(); ++i) {
if (i->id == id)
return i;
}
return items_.end();
}
void LauncherModel::AddObserver(LauncherModelObserver* observer) {
observers_.AddObserver(observer);
}
void LauncherModel::RemoveObserver(LauncherModelObserver* observer) {
observers_.RemoveObserver(observer);
}
} // namespace ash
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