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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.
#ifndef CHROME_BROWSER_UI_VIEWS_TABS_TAB_CONTROLLER_H_
#define CHROME_BROWSER_UI_VIEWS_TABS_TAB_CONTROLLER_H_
#pragma once
class BaseTab;
class TabStripSelectionModel;
namespace gfx {
class Point;
}
namespace views {
class MouseEvent;
}
// Controller for tabs.
class TabController {
public:
virtual const TabStripSelectionModel& GetSelectionModel() = 0;
// Returns true if multiple selection is supported.
virtual bool SupportsMultipleSelection() = 0;
// Selects the tab.
virtual void SelectTab(BaseTab* tab) = 0;
// Extends the selection from the anchor to |tab|.
virtual void ExtendSelectionTo(BaseTab* tab) = 0;
// Toggles whether |tab| is selected.
virtual void ToggleSelected(BaseTab* tab) = 0;
// Adds the selection from the anchor to |tab|.
virtual void AddSelectionFromAnchorTo(BaseTab* tab) = 0;
// Closes the tab.
virtual void CloseTab(BaseTab* tab) = 0;
// Shows a context menu for the tab at the specified point in screen coords.
virtual void ShowContextMenuForTab(BaseTab* tab, const gfx::Point& p) = 0;
// Returns true if |tab| is the active tab. The active tab is the one whose
// content is shown in the browser.
virtual bool IsActiveTab(const BaseTab* tab) const = 0;
// Returns true if the specified Tab is selected.
virtual bool IsTabSelected(const BaseTab* tab) const = 0;
// Returns true if the specified Tab is pinned.
virtual bool IsTabPinned(const BaseTab* tab) const = 0;
// Returns true if the specified Tab is closeable.
virtual bool IsTabCloseable(const BaseTab* tab) const = 0;
// Potentially starts a drag for the specified Tab.
virtual void MaybeStartDrag(
BaseTab* tab,
const views::MouseEvent& event,
const TabStripSelectionModel& original_selection) = 0;
// Continues dragging a Tab.
virtual void ContinueDrag(views::View* view, const gfx::Point& location) = 0;
// Ends dragging a Tab. |canceled| is true if the drag was aborted in a way
// other than the user releasing the mouse. Returns whether the tab has been
// destroyed.
virtual bool EndDrag(bool canceled) = 0;
// Returns the tab that contains the specified coordinates, in terms of |tab|,
// or NULL if there is no tab that contains the specified point.
virtual BaseTab* GetTabAt(BaseTab* tab,
const gfx::Point& tab_in_tab_coordinates) = 0;
// Informs that an active tab is selected when already active (ie - clicked
// when already active/foreground).
virtual void ClickActiveTab(const BaseTab* tab) const = 0;
// Invoked when a mouse event occurs on |source|.
virtual void OnMouseEventInTab(views::View* source,
const views::MouseEvent& event) = 0;
// Returns true if |tab| needs to be painted. If false is returned the tab is
// not painted. If true is returned the tab should be painted and |clip| is
// set to the clip (if |clip| is empty means no clip).
virtual bool ShouldPaintTab(const BaseTab* tab, gfx::Rect* clip) = 0;
protected:
virtual ~TabController() {}
};
#endif // CHROME_BROWSER_UI_VIEWS_TABS_TAB_CONTROLLER_H_
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