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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_STATUS_VIEW_H__
#define CHROME_BROWSER_STATUS_VIEW_H__

#include <atlbase.h>
#include <atlapp.h>
#include <atlcrack.h>
#include <atlctrls.h>
#include <atlmisc.h>
#include <vector>

#include "base/basictypes.h"
#include "chrome/browser/tab_contents.h"

typedef CWinTraits<WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS>
    StatusViewTraits;

// A base class for about:network, about:ipc etc.  It handles creating a row of
// buttons at the top of the page.  Derived classes get a rect of the remaining
// area and can create their own controls there.
class StatusView : public TabContents,
                   public CWindowImpl<StatusView, CWindow, StatusViewTraits> {
 public:
  StatusView(TabContentsType type);

  BEGIN_MSG_MAP(StatusView)
    MSG_WM_CREATE(OnCreate)
    MSG_WM_ERASEBKGND(OnEraseBkgnd)
    MSG_WM_SIZE(OnSize)
  END_MSG_MAP()

  virtual void CreateView(HWND parent_hwnd, const gfx::Rect& initial_bounds);
  virtual HWND GetContainerHWND() const { return m_hWnd; }

  // Derived classes should implement the following functions
  // TabContents override, to set the page title.
  // virtual const std::wstring GetDefaultTitle() = 0;
  // Gives a rect whose top left corner is after the buttons.  The size of the
  // controls that are added by derived classes will be set in the next OnSize,
  // for now can use any height/width.
  virtual void OnCreate(const CRect& rect) = 0;
  virtual void OnSize(const CRect& rect) = 0;

 protected:
  // Should be deleted via CloseContents.
  virtual ~StatusView();

  // Creates and adds a button to the top row of the page.  Button ids should
  // be unique and start at 101.
  void CreateButton(int id, const wchar_t* title);
  void SetButtonText(int id, const wchar_t* title);

  static const int kLayoutPadding;
  static const int kButtonWidth;
  static const int kButtonHeight;

 private:
  // FocusTraversal Implementation
  // TODO (jcampan): make focus traversal work
  ChromeViews::View* FindNextFocusableView(ChromeViews::View* starting_view,
                                          bool reverse, bool dont_loop) {
    return NULL;
  }

  // Event handlers
  LRESULT OnCreate(LPCREATESTRUCT create_struct);
  void OnSize(UINT size_command, const CSize& new_size);
  LRESULT OnEraseBkgnd(HDC hdc);

  struct ButtonInfo {
    CButton* button;
    int id;
  };

  std::vector<ButtonInfo> buttons_;

  DISALLOW_EVIL_CONSTRUCTORS(StatusView);
};

#endif  // #ifndef CHROME_BROWSER_STATUS_VIEW_H__