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// Copyright (c) 2006-2008 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_VIEWS_STATUS_BUBBLE_H__
#define CHROME_BROWSER_VIEWS_STATUS_BUBBLE_H__
#include "base/gfx/rect.h"
#include "chrome/views/hwnd_view_container.h"
#include "chrome/views/view_container.h"
class GURL;
// StatusBubble displays a bubble of text that fades in, hovers over the
// browser chrome and fades away when not needed. It is primarily designed
// to allow users to see where hovered links point to.
class StatusBubble {
public:
explicit StatusBubble(ChromeViews::ViewContainer* frame);
~StatusBubble();
// Sets the bubble contents to a specific string and causes the bubble
// to display immediately. Subsequent empty SetURL calls (typically called
// when the cursor exits a link) will set the status bubble back to its
// status text. To hide the status bubble again, either call SetStatus
// with an empty string, or call Hide().
void SetStatus(const std::wstring& status);
// Sets the bubble text to a URL - if given a non-empty URL, this will cause
// the bubble to fade in and remain open until given an empty URL or until
// the Hide() method is called. languages is the value of Accept-Language
// to determine what characters are understood by a user.
void SetURL(const GURL& url, const std::wstring& languages);
// Clear the URL and begin the fadeout of the bubble if not status text
// needs to be displayed.
void ClearURL();
// Skip the fade and instant-hide the bubble.
void Hide();
// Called when the user's mouse has moved over web content.
void MouseMoved();
// Set the bounds of the bubble relative to the browser window.
void SetBounds(int x, int y, int w, int h);
// Reposition the bubble - as we are using a WS_POPUP for the bubble,
// we have to manually position it when the browser window moves.
void Reposition();
private:
class StatusView;
// Initializes the popup and view.
void Init();
// Attempt to move the status bubble out of the way of the cursor, allowing
// users to see links in the region normally occupied by the status bubble.
void AvoidMouse();
// The status text we want to display when there are no URLs to display.
std::wstring status_text_;
// The url we want to display when there is not status text to display.
std::wstring url_text_;
// Position relative to the parent window.
CPoint position_;
CSize size_;
// How vertically offset the bubble is from its root position_.
int offset_;
// We use a HWND for the popup so that it may float above any HWNDs in our
// UI (the location bar, for example).
ChromeViews::HWNDViewContainer* popup_;
double opacity_;
ChromeViews::ViewContainer* frame_;
StatusView* view_;
DISALLOW_EVIL_CONSTRUCTORS(StatusBubble);
};
#endif // CHROME_BROWSER_VIEWS_STATUS_BUBBLE_H__
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