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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 "ash/shelf/shelf.h"
#include <algorithm>
#include <cmath>
#include "ash/focus_cycler.h"
#include "ash/root_window_controller.h"
#include "ash/screen_util.h"
#include "ash/shelf/shelf_delegate.h"
#include "ash/shelf/shelf_item_delegate.h"
#include "ash/shelf/shelf_item_delegate_manager.h"
#include "ash/shelf/shelf_layout_manager.h"
#include "ash/shelf/shelf_model.h"
#include "ash/shelf/shelf_navigator.h"
#include "ash/shelf/shelf_util.h"
#include "ash/shelf/shelf_view.h"
#include "ash/shell.h"
#include "ash/shell_delegate.h"
#include "ash/shell_window_ids.h"
#include "ash/wm/window_properties.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/aura/window_observer.h"
#include "ui/compositor/layer.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia_operations.h"
#include "ui/gfx/skbitmap_operations.h"
#include "ui/views/accessible_pane_view.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"
#include "ui/wm/public/activation_client.h"
namespace ash {
const char Shelf::kNativeViewName[] = "ShelfView";
Shelf::Shelf(ShelfModel* shelf_model,
ShelfDelegate* shelf_delegate,
ShelfWidget* shelf_widget)
: shelf_view_(NULL),
alignment_(shelf_widget->GetAlignment()),
delegate_(shelf_delegate),
shelf_widget_(shelf_widget) {
shelf_view_ = new ShelfView(shelf_model, delegate_, this);
shelf_view_->Init();
shelf_widget_->GetContentsView()->AddChildView(shelf_view_);
shelf_widget_->GetNativeView()->SetName(kNativeViewName);
delegate_->OnShelfCreated(this);
}
Shelf::~Shelf() {
delegate_->OnShelfDestroyed(this);
}
// static
Shelf* Shelf::ForPrimaryDisplay() {
return Shelf::ForWindow(Shell::GetPrimaryRootWindow());
}
// static
Shelf* Shelf::ForWindow(const aura::Window* window) {
ShelfWidget* shelf_widget = RootWindowController::ForWindow(window)->shelf();
return shelf_widget ? shelf_widget->shelf() : NULL;
}
void Shelf::SetAlignment(ShelfAlignment alignment) {
alignment_ = alignment;
shelf_view_->OnShelfAlignmentChanged();
// ShelfLayoutManager will resize the shelf.
}
bool Shelf::IsHorizontalAlignment() const {
return alignment_ == SHELF_ALIGNMENT_BOTTOM ||
alignment_ == SHELF_ALIGNMENT_TOP;
}
void Shelf::SetAutoHideBehavior(ShelfAutoHideBehavior behavior) {
shelf_widget_->shelf_layout_manager()->SetAutoHideBehavior(behavior);
}
ShelfAutoHideBehavior Shelf::GetAutoHideBehavior() const {
return shelf_widget_->shelf_layout_manager()->auto_hide_behavior();
}
gfx::Rect Shelf::GetScreenBoundsOfItemIconForWindow(
const aura::Window* window) {
ShelfID id = GetShelfIDForWindow(window);
gfx::Rect bounds(shelf_view_->GetIdealBoundsOfItemIcon(id));
gfx::Point screen_origin;
views::View::ConvertPointToScreen(shelf_view_, &screen_origin);
return gfx::Rect(screen_origin.x() + bounds.x(),
screen_origin.y() + bounds.y(),
bounds.width(),
bounds.height());
}
void Shelf::UpdateIconPositionForWindow(aura::Window* window) {
shelf_view_->UpdatePanelIconPosition(
GetShelfIDForWindow(window),
ScreenUtil::ConvertRectFromScreen(
shelf_widget()->GetNativeView(),
window->GetBoundsInScreen()).CenterPoint());
}
void Shelf::ActivateShelfItem(int index) {
// We pass in a keyboard event which will then trigger a switch to the
// next item if the current one is already active.
ui::KeyEvent event(ui::ET_KEY_RELEASED,
ui::VKEY_UNKNOWN, // The actual key gets ignored.
ui::EF_NONE);
const ShelfItem& item = shelf_view_->model()->items()[index];
ShelfItemDelegate* item_delegate =
Shell::GetInstance()->shelf_item_delegate_manager()->GetShelfItemDelegate(
item.id);
item_delegate->ItemSelected(event);
}
void Shelf::CycleWindowLinear(CycleDirection direction) {
int item_index = GetNextActivatedItemIndex(
*(shelf_view_->model()), direction);
if (item_index >= 0)
ActivateShelfItem(item_index);
}
void Shelf::AddIconObserver(ShelfIconObserver* observer) {
shelf_view_->AddIconObserver(observer);
}
void Shelf::RemoveIconObserver(ShelfIconObserver* observer) {
shelf_view_->RemoveIconObserver(observer);
}
bool Shelf::IsShowingMenu() const {
return shelf_view_->IsShowingMenu();
}
bool Shelf::IsShowingOverflowBubble() const {
return shelf_view_->IsShowingOverflowBubble();
}
void Shelf::SetVisible(bool visible) const {
shelf_view_->SetVisible(visible);
}
bool Shelf::IsVisible() const {
return shelf_view_->visible();
}
void Shelf::SchedulePaint() {
shelf_view_->SchedulePaintForAllButtons();
}
views::View* Shelf::GetAppListButtonView() const {
return shelf_view_->GetAppListButtonView();
}
void Shelf::LaunchAppIndexAt(int item_index) {
ShelfModel* shelf_model = shelf_view_->model();
const ShelfItems& items = shelf_model->items();
int item_count = shelf_model->item_count();
int indexes_left = item_index >= 0 ? item_index : item_count;
int found_index = -1;
// Iterating until we have hit the index we are interested in which
// is true once indexes_left becomes negative.
for (int i = 0; i < item_count && indexes_left >= 0; i++) {
if (items[i].type != TYPE_APP_LIST) {
found_index = i;
indexes_left--;
}
}
// There are two ways how found_index can be valid: a.) the nth item was
// found (which is true when indexes_left is -1) or b.) the last item was
// requested (which is true when index was passed in as a negative number).
if (found_index >= 0 && (indexes_left == -1 || item_index < 0)) {
// Then set this one as active (or advance to the next item of its kind).
ActivateShelfItem(found_index);
}
}
gfx::Rect Shelf::GetVisibleItemsBoundsInScreen() const {
return shelf_view_->GetVisibleItemsBoundsInScreen();
}
app_list::ApplicationDragAndDropHost* Shelf::GetDragAndDropHostForAppList() {
return shelf_view_;
}
} // namespace ash
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