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// Copyright (c) 2009 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.
#ifndef CHROME_BROWSER_VIEWS_TABS_TAB_OVERVIEW_GRID_H_
#define CHROME_BROWSER_VIEWS_TABS_TAB_OVERVIEW_GRID_H_
#include "base/scoped_ptr.h"
#include "chrome/browser/views/tabs/grid.h"
class TabOverviewCell;
class TabOverviewController;
class TabOverviewDragController;
// TabOverviewGrid is used to provide a grid view of the contents of a tab
// strip model. Each cell of the grid is a TabOverviewCell. TabOverviewGrids
// primary responsibility is to forward events to TabOverviewDragController.
class TabOverviewGrid : public Grid {
public:
explicit TabOverviewGrid(TabOverviewController* controller);
virtual ~TabOverviewGrid();
// Returns true if a drag is underway and the drag is in the process of
// modifying the tab strip model.
bool modifying_model() const;
// Returns the TabOverviewCell at the specified index.
TabOverviewCell* GetTabOverviewCellAt(int index);
// Cancels the drag. Does nothing if a drag is not underway.
void CancelDrag();
// If a drag is under way, this invokes Drag on the DragController with the
// current position of the mouse.
void UpdateDragController();
// View overrides.
virtual bool OnMousePressed(const views::MouseEvent& event);
virtual bool OnMouseDragged(const views::MouseEvent& event);
virtual void OnMouseReleased(const views::MouseEvent& event, bool canceled);
// AnimationDelegate overrides.
virtual void AnimationEnded(const Animation* animation);
virtual void AnimationProgressed(const Animation* animation);
virtual void AnimationCanceled(const Animation* animation);
private:
TabOverviewController* controller_;
scoped_ptr<TabOverviewDragController> drag_controller_;
DISALLOW_COPY_AND_ASSIGN(TabOverviewGrid);
};
#endif // CHROME_BROWSER_VIEWS_TABS_TAB_OVERVIEW_GRID_H_
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