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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_VIEWS_CUSTOM_FRAME_WINDOW_H__
#define CHROME_VIEWS_CUSTOM_FRAME_WINDOW_H__
#include "chrome/common/gfx/chrome_canvas.h"
#include "chrome/views/window.h"
#include "chrome/views/window_delegate.h"
namespace ChromeViews {
////////////////////////////////////////////////////////////////////////////////
//
// CustomFrameWindow
//
// A CustomFrameWindow is a Window subclass that implements the Chrome-style
// window frame used on Windows XP and Vista without DWM Composition.
// See documentation in window.h for more information about the capabilities
// of this window type.
//
////////////////////////////////////////////////////////////////////////////////
class CustomFrameWindow : public Window {
public:
CustomFrameWindow();
class NonClientView;
explicit CustomFrameWindow(NonClientView* non_client_view);
virtual ~CustomFrameWindow();
// Create the CustomFrameWindow.
// The parent of this window is always the desktop, however the owner is a
// window that this window is dependent on, if this window is opened as a
// modal dialog or dependent window. This is NULL if the window is not
// dependent on any other window.
// |contents_view| is the view to be displayed in the client area of the
// window.
// |window_delegate| is an object implementing the WindowDelegate interface
// that supplies information to the window such as its title, icon, etc.
virtual void Init(HWND owner,
const gfx::Rect& bounds,
View* contents_view,
WindowDelegate* window_delegate);
// Executes the specified SC_command.
void ExecuteSystemMenuCommand(int command);
// Returns whether or not the frame is active.
bool is_active() const { return is_active_; }
class NonClientView : public View {
public:
virtual void Init(ClientView* client_view) = 0;
// Calculates the bounds of the client area of the window assuming the
// window is sized to |width| and |height|.
virtual gfx::Rect CalculateClientAreaBounds(int width,
int height) const = 0;
// Calculates the size of window required to display a client area of the
// specified width and height.
virtual gfx::Size CalculateWindowSizeForClientSize(int width,
int height) const = 0;
// Returns the point, in screen coordinates, where the system menu should
// be shown so it shows up anchored to the system menu icon.
virtual CPoint GetSystemMenuPoint() const = 0;
// Determines the windows HT* code when the mouse cursor is at the
// specified point, in window coordinates.
virtual int HitTest(const gfx::Point& point) = 0;
// Returns a mask to be used to clip the top level window for the given
// size. This is used to create the non-rectangular window shape.
virtual void GetWindowMask(const gfx::Size& size,
gfx::Path* window_mask) = 0;
// Toggles the enable state for the Close button (and the Close menu item in
// the system menu).
virtual void EnableClose(bool enable) = 0;
};
// Overridden from Window:
virtual gfx::Size CalculateWindowSizeForClientSize(
const gfx::Size& client_size) const;
virtual void UpdateWindowTitle();
protected:
// Overridden from Window:
virtual void SizeWindowToDefault();
virtual void EnableClose(bool enable);
// Overridden from HWNDViewContainer:
virtual void OnInitMenu(HMENU menu);
virtual void OnMouseLeave();
virtual LRESULT OnNCActivate(BOOL active);
virtual LRESULT OnNCCalcSize(BOOL mode, LPARAM l_param);
virtual LRESULT OnNCHitTest(const CPoint& point);
virtual LRESULT OnNCMouseMove(UINT flags, const CPoint& point);
virtual void OnNCPaint(HRGN rgn);
virtual void OnNCRButtonDown(UINT flags, const CPoint& point);
virtual void OnNCLButtonDown(UINT flags, const CPoint& point);
virtual LRESULT OnSetCursor(HWND window, UINT hittest_code, UINT message);
virtual void OnSize(UINT param, const CSize& size);
// The View that provides the non-client area of the window (title bar,
// window controls, sizing borders etc).
NonClientView* non_client_view_;
private:
// Shows the system menu at the specified screen point.
void RunSystemMenu(const CPoint& point);
// Resets the window region.
void ResetWindowRegion();
// True if this window is the active top level window.
bool is_active_;
// Static resource initialization.
static void InitClass();
enum ResizeCursor {
RC_NORMAL = 0, RC_VERTICAL, RC_HORIZONTAL, RC_NESW, RC_NWSE
};
static HCURSOR resize_cursors_[6];
DISALLOW_EVIL_CONSTRUCTORS(CustomFrameWindow);
};
}
#endif // CHROME_VIEWS_CUSTOM_FRAME_WINDOW_H__
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