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// Copyright (c) 2010 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_UI_VIEWS_TABS_TAB_STRIP_CONTROLLER_H_
#define CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_CONTROLLER_H_
#pragma once
class BaseTab;
class BaseTabStrip;
class GURL;
namespace gfx {
class Point;
}
// Model/Controller for the TabStrip.
// NOTE: All indices used by this class are in model coordinates.
class TabStripController {
public:
virtual ~TabStripController() {}
// Returns the number of tabs in the model.
virtual int GetCount() const = 0;
// Returns true if |index| is a valid model index.
virtual bool IsValidIndex(int index) const = 0;
// Returns the selected index, in terms of the model.
virtual int GetSelectedIndex() const = 0;
// Returns true if the selected index is selected.
virtual bool IsTabSelected(int index) const = 0;
// Returns true if the selected index is pinned.
virtual bool IsTabPinned(int index) const = 0;
// Returns true if the selected index is closeable.
virtual bool IsTabCloseable(int index) const = 0;
// Returns true if the selected index is the new tab page.
virtual bool IsNewTabPage(int index) const = 0;
// Select the tab at the specified index in the model.
virtual void SelectTab(int index) = 0;
// Closes the tab at the specified index in the model.
virtual void CloseTab(int index) = 0;
// Shows a context menu for the tab at the specified point in screen coords.
virtual void ShowContextMenu(BaseTab* tab, const gfx::Point& p) = 0;
// Updates the loading animations of all the tabs.
virtual void UpdateLoadingAnimations() = 0;
// Returns true if the associated TabStrip's delegate supports tab moving or
// detaching. Used by the Frame to determine if dragging on the Tab
// itself should move the window in cases where there's only one
// non drag-able Tab.
virtual int HasAvailableDragActions() const = 0;
// Performans a drop at the specified location.
virtual void PerformDrop(bool drop_before, int index, const GURL& url) = 0;
// Return true if this tab strip is compatible with the provided tab strip.
// Compatible tab strips can transfer tabs during drag and drop.
virtual bool IsCompatibleWith(BaseTabStrip* other) const = 0;
// Creates the new tab.
virtual void CreateNewTab() = 0;
};
#endif // CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_CONTROLLER_H_
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