Mac: Resize status bubble when window is resized.

BUG=22956
TEST=Load a (slow-loading) web site so that a status bubble will appear and be visible for a while. While the status bubble is visible, resize the window. The status bubble should move and/or resize appropriately.

Review URL: http://codereview.chromium.org/266018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@28448 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/cocoa/browser_window_cocoa.mm

@@ -11,6 +11,7 @@
 #import "chrome/browser/cocoa/clear_browsing_data_controller.h"
 #import "chrome/browser/cocoa/download_shelf_controller.h"
 #include "chrome/browser/cocoa/page_info_window_mac.h"
+#include "chrome/browser/cocoa/status_bubble_mac.h"
 #include "chrome/browser/cocoa/task_manager_mac.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/download/download_shelf.h"

chrome/browser/cocoa/browser_window_controller.h

@@ -31,7 +31,7 @@ class ConstrainedWindowMac;
 @class GTMWindowSheetController;
 @class InfoBarContainerController;
 class LocationBar;
-class StatusBubble;
+class StatusBubbleMac;
 class TabContents;
 @class TabContentsController;
 @class TabStripController;
@@ -65,7 +65,7 @@ class TabStripModelObserverBridge;
   scoped_nsobject<TabStripController> tabStripController_;
   scoped_nsobject<FindBarCocoaController> findBarCocoaController_;
   scoped_nsobject<InfoBarContainerController> infoBarContainerController_;
-  scoped_ptr<StatusBubble> statusBubble_;
+  scoped_ptr<StatusBubbleMac> statusBubble_;
   scoped_nsobject<DownloadShelfController> downloadShelfController_;
   scoped_nsobject<ExtensionShelfController> extensionShelfController_;
   scoped_nsobject<BookmarkBarController> bookmarkBarController_;
@@ -91,7 +91,7 @@ class TabStripModelObserverBridge;
 - (LocationBar*)locationBar;
 
 // Access the C++ bridge object representing the status bubble for the window.
-- (StatusBubble*)statusBubble;
+- (StatusBubbleMac*)statusBubble;
 
 // Updates the toolbar (and transitively the location bar) with the states of
 // the specified |tab|.  If |shouldRestore| is true, we're switching
@@ -156,6 +156,9 @@ class TabStripModelObserverBridge;
 - (void)attachConstrainedWindow:(ConstrainedWindowMac*)window;
 - (void)removeConstrainedWindow:(ConstrainedWindowMac*)window;
 
+// Delegate method called when window is resized.
+- (void)windowDidResize:(NSNotification*)notification;
+
 @end
 
 

chrome/browser/cocoa/browser_window_controller.mm

@@ -647,7 +647,7 @@ willPositionSheet:(NSWindow*)sheet
   return [toolbarController_ locationBar];
 }
 
-- (StatusBubble*)statusBubble {
+- (StatusBubbleMac*)statusBubble {
   return statusBubble_.get();
 }
 
@@ -1081,6 +1081,14 @@ willPositionSheet:(NSWindow*)sheet
   bookmarkBubbleController_.reset(nil);
 }
 
+// Delegate method called when window is resized.
+- (void)windowDidResize:(NSNotification*)notification {
+  // Resize (and possibly move) the status bubble. Note that we may get called
+  // when the status bubble does not exist.
+  if(statusBubble_.get())
+    statusBubble_->UpdateSizeAndPosition();
+}
+
 @end
 
 @implementation BrowserWindowController (Private)

chrome/browser/cocoa/status_bubble_mac.h

@@ -26,6 +26,11 @@ class StatusBubbleMac : public StatusBubble {
   virtual void MouseMoved();
   virtual void UpdateDownloadShelfVisibility(bool visible);
 
+  // Mac-specific method: Update the size and position of the status bubble to
+  // match the parent window. Safe to call even when the status bubble does not
+  // exist.
+  void UpdateSizeAndPosition();
+
  private:
   friend class StatusBubbleMacTest;
 
@@ -38,6 +43,9 @@ class StatusBubbleMac : public StatusBubble {
   void FadeIn();
   void FadeOut();
 
+  // Calculate the appropriate frame for the status bubble window.
+  NSRect CalculateWindowFrame();
+
   // The window we attach ourselves to.
   NSWindow* parent_;  // WEAK
 

chrome/browser/cocoa/status_bubble_mac.mm

@@ -182,11 +182,8 @@ void StatusBubbleMac::Create() {
   if (window_)
     return;
 
-  NSRect rect = [parent_ frame];
-  rect.size.height = kWindowHeight;
-  rect.size.width = static_cast<int>(kWindowWidthPercent * rect.size.width);
   // TODO(avi):fix this for RTL
-  window_ = [[NSWindow alloc] initWithContentRect:rect
+  window_ = [[NSWindow alloc] initWithContentRect:CalculateWindowFrame()
                                         styleMask:NSBorderlessWindowMask
                                           backing:NSBackingStoreBuffered
                                             defer:YES];
@@ -227,3 +224,18 @@ void StatusBubbleMac::FadeOut() {
   [NSAnimationContext endGrouping];
 }
 
+void StatusBubbleMac::UpdateSizeAndPosition() {
+  if (!window_)
+    return;
+
+  [window_ setFrame:CalculateWindowFrame() display:YES];
+}
+
+NSRect StatusBubbleMac::CalculateWindowFrame() {
+  DCHECK(parent_);
+
+  NSRect rect = [parent_ frame];
+  rect.size.height = kWindowHeight;
+  rect.size.width = static_cast<int>(kWindowWidthPercent * rect.size.width);
+  return rect;
+}

chrome/browser/cocoa/status_bubble_mac_unittest.mm

@@ -17,7 +17,6 @@
 @end
 @implementation StatusBubbleMacTestWindowDelegate
 - (GTMTheme *)gtm_themeForWindow:(NSWindow *)window {
-  NSLog(@"gettheme");
   return [[[GTMTheme alloc] init] autorelease];
 }
 @end
@@ -119,3 +118,49 @@ TEST_F(StatusBubbleMacTest, Delete) {
   bubble->SetStatus(L"showing");
   delete bubble;
 }
+
+TEST_F(StatusBubbleMacTest, UpdateSizeAndPosition) {
+  // Test |UpdateSizeAndPosition()| when status bubble does not exist (shouldn't
+  // crash; shouldn't create window).
+  EXPECT_FALSE(GetWindow());
+  bubble_->UpdateSizeAndPosition();
+  EXPECT_FALSE(GetWindow());
+
+  // Create a status bubble (with contents) and call resize (without actually
+  // resizing); the frame size shouldn't change.
+  bubble_->SetStatus(L"UpdateSizeAndPosition test");
+  ASSERT_TRUE(GetWindow());
+  NSRect rect_before = [GetWindow() frame];
+  bubble_->UpdateSizeAndPosition();
+  NSRect rect_after = [GetWindow() frame];
+  EXPECT_TRUE(NSEqualRects(rect_before, rect_after));
+
+  // Move the window and call resize; only the origin should change.
+  NSWindow* window = cocoa_helper_.window();
+  ASSERT_TRUE(window);
+  NSRect frame = [window frame];
+  rect_before = [GetWindow() frame];
+  frame.origin.x += 10.0;  // (fairly arbitrary nonzero value)
+  frame.origin.y += 10.0;  // (fairly arbitrary nonzero value)
+  [window setFrame:frame display:YES];
+  bubble_->UpdateSizeAndPosition();
+  rect_after = [GetWindow() frame];
+  EXPECT_NE(rect_before.origin.x, rect_after.origin.x);
+  EXPECT_NE(rect_before.origin.y, rect_after.origin.y);
+  EXPECT_EQ(rect_before.size.width, rect_after.size.width);
+  EXPECT_EQ(rect_before.size.height, rect_after.size.height);
+
+  // Resize the window (without moving). The origin shouldn't change. The width
+  // should change (in the current implementation), but not the height.
+  frame = [window frame];
+  rect_before = [GetWindow() frame];
+  frame.size.width += 50.0;   // (fairly arbitrary nonzero value)
+  frame.size.height += 50.0;  // (fairly arbitrary nonzero value)
+  [window setFrame:frame display:YES];
+  bubble_->UpdateSizeAndPosition();
+  rect_after = [GetWindow() frame];
+  EXPECT_EQ(rect_before.origin.x, rect_after.origin.x);
+  EXPECT_EQ(rect_before.origin.y, rect_after.origin.y);
+  EXPECT_NE(rect_before.size.width, rect_after.size.width);
+  EXPECT_EQ(rect_before.size.height, rect_after.size.height);
+}