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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.
//
// @file
// Infobar window.
#ifndef CEEE_IE_PLUGIN_BHO_INFOBAR_WINDOW_H_
#define CEEE_IE_PLUGIN_BHO_INFOBAR_WINDOW_H_
#include <atlbase.h>
#include <atlapp.h> // Must be included AFTER base.
#include <atlcrack.h>
#include <atlgdi.h>
#include <atlmisc.h>
#include <atlwin.h>
#include "base/singleton.h"
#include "base/scoped_ptr.h"
#include "ceee/ie/plugin/bho/infobar_browser_window.h"
namespace infobar_api {
enum InfobarType {
FIRST_INFOBAR_TYPE = 0,
TOP_INFOBAR = 0, // Infobar at the top.
BOTTOM_INFOBAR = 1, // Infobar at the bottom.
END_OF_INFOBAR_TYPE = 2
};
// InfobarWindow is the window created on the top or bottom of the browser tab
// window that contains the web browser window.
class InfobarWindow : public InfobarBrowserWindow::Delegate,
public CWindowImpl<InfobarWindow, CWindow> {
public:
class Delegate {
public:
virtual ~Delegate() {}
// Returns the window handle for the HTML container window.
virtual HWND GetContainerWindow() = 0;
// Informs about window.close() event.
virtual void OnWindowClose(InfobarType type) = 0;
};
static InfobarWindow* CreateInfobar(InfobarType type, Delegate* delegate);
~InfobarWindow();
// Implementation of InfobarBrowserWindow::Delegate.
// Informs about window.close() event.
virtual void OnWindowClose();
// Shows the infobar.
// NOTE: Navigate should be called before Show.
// The height of the infobar is calculated to fit the content (limited to
// max_height if the content is too high; no limit if max_height is set to
// 0).
// slide indicates whether to show sliding effect.
HRESULT Show(int max_height, bool slide);
// Hides the infobar.
HRESULT Hide();
// Navigates the HTML view of the infobar.
HRESULT Navigate(const std::wstring& url);
// Reserves space for the infobar when IE window recalculates its size.
void ReserveSpace(RECT* rect);
// Updates the infobar size and position when IE content window size or
// position is changed.
void UpdatePosition();
// Destroys the browser window.
void Reset();
private:
BEGIN_MSG_MAP(InfobarWindow)
MSG_WM_TIMER(OnTimer);
MSG_WM_CREATE(OnCreate)
MSG_WM_PAINT(OnPaint)
MSG_WM_SIZE(OnSize)
END_MSG_MAP()
// Type of the infobar - whether it is displayed at the top or at the bottom
// of the IE content window.
InfobarType type_;
// Delegate, connection to the infobar manager.
Delegate* delegate_;
// URL to navigate to.
std::wstring url_;
// Whether the infobar is shown or not.
bool show_;
// The target height of the infobar.
int target_height_;
// The current height of the infobar.
int current_height_;
// Indicates whether the infobar is sliding.
bool sliding_infobar_;
// The Chrome Frame host handling a Chrome Frame instance for us.
CComPtr<InfobarBrowserWindow> chrome_frame_host_;
// Constructor.
InfobarWindow(InfobarType type, Delegate* delegate);
// If show is true, shrinks IE content window and shows the infobar
// either at the top or at the bottom. Otherwise, hides the infobar and
// restores IE content window.
void StartUpdatingLayout(bool show, int max_height, bool slide);
// Based on the current height and the target height, decides the height of
// the next step. This is used when showing sliding effect.
int CalculateNextHeight();
// Calculates the position of the infobar based on its current height.
RECT CalculatePosition();
// Updates the layout (sizes and positions of infobar and IE content window)
// based on the current height.
void UpdateLayout();
HRESULT GetContentSize(SIZE* size);
// Event handlers.
LRESULT OnTimer(UINT_PTR nIDEvent);
LRESULT OnCreate(LPCREATESTRUCT lpCreateStruct);
void OnPaint(CDCHandle dc);
void OnSize(UINT type, CSize size);
void AdjustSize();
DISALLOW_COPY_AND_ASSIGN(InfobarWindow);
};
} // namespace infobar_api
#endif // CEEE_IE_PLUGIN_BHO_INFOBAR_WINDOW_H_
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