Expand status bubble to accommodate long URLs....

chrome/browser/views/status_bubble_views.h

 // 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_VIEWS_H_
 #define CHROME_BROWSER_VIEWS_STATUS_BUBBLE_VIEWS_H_
 
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
+#include "base/task.h"
 #include "chrome/browser/status_bubble.h"
+#include "googleurl/src/gurl.h"
 #include "gfx/rect.h"
 
 class GURL;
 namespace gfx {
 class Point;
 }
 namespace views {
 class Widget;
 }
 
 // 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 StatusBubbleViews : public StatusBubble {
  public:
   // How wide the bubble's shadow is.
   static const int kShadowThickness;
 
   // The combined vertical padding above and below the text.
   static const int kTotalVerticalPadding = 7;
 
+  // On hover, expand status bubble to fit long URL after this delay.
+  static const int kExpandHoverDelay = 1600;
+
   explicit StatusBubbleViews(views::Widget* frame);
   ~StatusBubbleViews();
 
   // 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();
 
   // The bubble only has a preferred height: the sum of the height of
   // the font and kTotalVerticalPadding.
   gfx::Size GetPreferredSize();
 
   // Set the bounds of the bubble relative to the browser window.
   void SetBounds(int x, int y, int w, int h);
 
+  // Set bubble to new width.
+  void SetBubbleWidth(int width);
+
   // Overridden from StatusBubble:
   virtual void SetStatus(const std::wstring& status);
   virtual void SetURL(const GURL& url, const std::wstring& languages);
   virtual void Hide();
   virtual void MouseMoved(const gfx::Point& location, bool left_content);
   virtual void UpdateDownloadShelfVisibility(bool visible);
 
  private:
   class StatusView;
+  class StatusViewExpander;
 
   // 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(const gfx::Point& location);
 
   // Returns true if the frame_ is visible and not minimized.
   bool IsFrameVisible();
 
+  // Expand bubble size to accommodate a long URL.
+  void ExpandBubble();
+
+  // Cancel all waiting expansion animations in the timer.
+  void CancelExpandTimer();
+
+  // Get the standard width for a status bubble in the current frame size.
+  int GetStandardStatusBubbleWidth();
+
+  // Get the maximum possible width for a status bubble in the current frame
+  // size.
+  int GetMaxStatusBubbleWidth();
+
   // 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 no status text to display.
   std::wstring url_text_;
 
+  // The original, non-elided URL.
+  GURL url_;
+
+  // Used to elide the original URL again when we expand it.
+  std::wstring languages_;
+
   // Position relative to the parent window.
   gfx::Point position_;
   gfx::Size 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).
   scoped_ptr<views::Widget> popup_;
   double opacity_;
 
   views::Widget* frame_;
   StatusView* view_;
 
+  // Manages the expansion of a status bubble to fit a long URL.
+  scoped_ptr<StatusViewExpander> expand_view_;
+
   // If the download shelf is visible, do not obscure it.
   bool download_shelf_is_visible_;
 
+  // If the bubble has already been expanded, and encounters a new URL,
+  // change size immediately, with no hover.
+  bool is_expanded_;
+
+  // Times expansion of status bubble when URL is too long for standard width.
+  ScopedRunnableMethodFactory<StatusBubbleViews> expand_timer_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(StatusBubbleViews);
 };
 
 #endif  // CHROME_BROWSER_VIEWS_STATUS_BUBBLE_VIEWS_H_