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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CHROME_BROWSER_TABS_TAB_H__
#define CHROME_BROWSER_TABS_TAB_H__
#include "base/gfx/point.h"
#include "chrome/browser/tabs/tab_renderer.h"
#include "chrome/browser/tabs/tab_strip_model.h"
#include "chrome/views/button.h"
#include "chrome/views/menu.h"
namespace gfx {
class Point;
}
class TabContents;
class Profile;
///////////////////////////////////////////////////////////////////////////////
//
// Tab
//
// A subclass of TabRenderer that represents an individual Tab in a TabStrip.
//
///////////////////////////////////////////////////////////////////////////////
class Tab : public TabRenderer,
public Menu::Delegate,
public ChromeViews::BaseButton::ButtonListener {
public:
static const std::string kTabClassName;
// An interface implemented by an object that can help this Tab complete
// various actions. The index parameter is the index of this Tab in the
// TabRenderer::Model.
class TabDelegate {
public:
// Returns true if the specified Tab is selected.
virtual bool IsTabSelected(const Tab* tab) const = 0;
// Selects the specified Tab.
virtual void SelectTab(Tab* tab) = 0;
// Closes the specified Tab.
virtual void CloseTab(Tab* tab) = 0;
// Returns true if the specified command is enabled for the specified Tab.
virtual bool IsCommandEnabledForTab(
TabStripModel::ContextMenuCommand command_id, const Tab* tab) const = 0;
// Executes the specified command for the specified Tab.
virtual void ExecuteCommandForTab(
TabStripModel::ContextMenuCommand command_id, Tab* tab) = 0;
// Potentially starts a drag for the specified Tab.
virtual void MaybeStartDrag(Tab* tab,
const ChromeViews::MouseEvent& event) = 0;
// Continues dragging a Tab.
virtual void ContinueDrag(const ChromeViews::MouseEvent& event) = 0;
// Ends dragging a Tab. |canceled| is true if the drag was aborted in a way
// other than the user releasing the mouse.
virtual void EndDrag(bool canceled) = 0;
};
explicit Tab(TabDelegate* delegate);
virtual ~Tab();
// Used to set/check whether this Tab is being animated closed.
void set_closing(bool closing) { closing_ = closing; }
bool closing() const { return closing_; }
// TabRenderer overrides:
virtual bool IsSelected() const;
private:
// ChromeViews::View overrides:
virtual bool OnMousePressed(const ChromeViews::MouseEvent& event);
virtual bool OnMouseDragged(const ChromeViews::MouseEvent& event);
virtual void OnMouseReleased(const ChromeViews::MouseEvent& event,
bool canceled);
virtual bool GetTooltipText(int x, int y, std::wstring* tooltip);
virtual bool GetTooltipTextOrigin(int x, int y, CPoint* origin);
virtual std::string GetClassName() const { return kTabClassName; }
virtual bool GetAccessibleRole(VARIANT* role);
virtual bool GetAccessibleName(std::wstring* name);
// ChromeViews::Menu::Delegate overrides:
virtual bool IsCommandEnabled(int id) const;
virtual void ExecuteCommand(int id);
// ChromeViews::BaseButton::ButtonListener overrides:
virtual void ButtonPressed(ChromeViews::BaseButton* sender);
// Run a context menu for this Tab at the specified screen point.
void RunContextMenuAt(const gfx::Point& screen_point);
// An instance of a delegate object that can perform various actions based on
// user gestures.
TabDelegate* delegate_;
// True if the tab is being animated closed.
bool closing_;
DISALLOW_EVIL_CONSTRUCTORS(Tab);
};
#endif CHROME_BROWSER_TABS_TAB_H__
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