gtk: Hide the status bubble when the mouse nears it.

chrome/browser/gtk/status_bubble_gtk.h

Index: chrome/browser/gtk/status_bubble_gtk.h
diff --git a/chrome/browser/gtk/status_bubble_gtk.h b/chrome/browser/gtk/status_bubble_gtk.h
index 87b43d32256490bd8619263eafefb10bb768246a..9784668c126deeae644a37920082fbb82c485712 100644
--- a/chrome/browser/gtk/status_bubble_gtk.h
+++ b/chrome/browser/gtk/status_bubble_gtk.h
@@ -9,6 +9,7 @@
 
 #include <string>
 
+#include "base/gfx/point.h"
 #include "base/scoped_ptr.h"
 #include "base/task.h"
 #include "chrome/browser/status_bubble.h"
@@ -30,16 +31,19 @@ class StatusBubbleGtk : public StatusBubble,
   explicit StatusBubbleGtk(Profile* profile);
   virtual ~StatusBubbleGtk();
 
+  bool flip_horizontally() const { return flip_horizontally_; }
+  int y_offset() const { return y_offset_; }
+
   // StatusBubble implementation.
   virtual void SetStatus(const std::wstring& status);
   virtual void SetURL(const GURL& url, const std::wstring& languages);
   virtual void Hide();
-  virtual void MouseMoved();
+  virtual void MouseMoved(const gfx::Point& location, bool left_content);
 
   // Called when the download shelf becomes visible or invisible.
   // This is used by to ensure that the status bubble does not obscure
   // the download shelf, when it is visible.
-  virtual void UpdateDownloadShelfVisibility(bool visible) { }
+  virtual void UpdateDownloadShelfVisibility(bool visible);
 
   // Overridden from NotificationObserver:
   void Observe(NotificationType type,
@@ -69,6 +73,19 @@ class StatusBubbleGtk : public StatusBubble,
   // Notification from the window that we should retheme ourself.
   void UserChangedTheme();
 
+  // Sets whether the bubble should be flipped horizontally and displayed on the
+  // opposite side of the tab contents.  Reshapes the container and queues a
+  // redraw if necessary.
+  void SetFlipHorizontally(bool flip_horizontally);
+
+  static gboolean HandleMotionNotifyThunk(GtkWidget* widget,
+                                          GdkEventMotion* event,
+                                          gpointer user_data) {
+    return reinterpret_cast<StatusBubbleGtk*>(user_data)->
+        HandleMotionNotify(event);
+  }
+  gboolean HandleMotionNotify(GdkEventMotion* event);
+
   NotificationRegistrar registrar_;
 
   // Provides colors.
@@ -77,6 +94,9 @@ class StatusBubbleGtk : public StatusBubble,
   // The toplevel event box.
   OwnedWidgetGtk container_;
 
+  // The GtkAlignment holding |label_|.
+  GtkWidget* padding_;
+
   // The GtkLabel holding the text.
   GtkWidget* label_;
 
@@ -88,6 +108,17 @@ class StatusBubbleGtk : public StatusBubble,
 
   // A timer that hides our window after a delay.
   ScopedRunnableMethodFactory<StatusBubbleGtk> timer_factory_;
+
+  // Should the bubble be flipped horizontally (e.g. displayed on the right for
+  // an LTR language)?  We move the bubble to the other side of the tab contents
+  // rather than sliding it down when the download shelf is visible.
+  bool flip_horizontally_;
+
+  // Vertical offset used to hide the status bubble as the pointer nears it.
+  int y_offset_;
+
+  // If the download shelf is visible, do not obscure it.
+  bool download_shelf_is_visible_;
 };
 
 #endif  // CHROME_BROWSER_GTK_STATUS_BUBBLE_GTK_H_