Implement Instant on Mac

chrome/browser/cocoa/browser_window_controller.mm

 // 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.
 
 #import "chrome/browser/cocoa/browser_window_controller.h"
 
 #include <Carbon/Carbon.h>
 
 #include "app/l10n_util.h"
 #include "app/l10n_util_mac.h"
@@ skipping 1354 matching lines @@
   // Must do it after sidebar and devtools update, otherwise bookmark bar might
   // call resizeView -> layoutSubviews and cause unnecessary relayout.
   // TODO(viettrungluu): perhaps update to not terminate running animations (if
   // applicable)?
   [self updateBookmarkBarVisibilityWithAnimation:NO];
 
   [infoBarContainerController_ changeTabContents:contents];
 }
 
 - (void)onReplaceTabWithContents:(TabContents*)contents {
+  // This is only called when instant results are committed.  Simply remove the
+  // preview view; the tab strip controller will reinstall the view as the
+  // active view.
+  [previewableContentsController_ hidePreview];
+  [self updateBookmarkBarVisibilityWithAnimation:NO];
 }
 
 - (void)onSelectedTabChange:(TabStripModelObserver::TabChangeType)change {
   // Update titles if this is the currently selected tab and if it isn't just
   // the loading state which changed.
   if (change != TabStripModelObserver::LOADING_ONLY)
     windowShim_->UpdateTitleBar();
 
   // Update the bookmark bar if this is the currently selected tab and if it
   // isn't just the title which changed. This for transitions between the NTP
@@ skipping 326 matching lines @@
 // tab strip mode.
 - (void)toggleTabStripDisplayMode {
   [super toggleTabStripDisplayMode];
   [self createTabStripController];
 }
 
 - (BOOL)useVerticalTabs {
   return browser_->tabstrip_model()->delegate()->UseVerticalTabs();
 }
 
+- (void)showInstant:(TabContents*)previewContents {
+  [previewableContentsController_ showPreview:previewContents];
+  [self updateBookmarkBarVisibilityWithAnimation:NO];
+}
+
+- (void)hideInstant {
+  // TODO(rohitrao): Revisit whether or not this method should be called when
+  // instant isn't showing.
+  if (![previewableContentsController_ isShowingPreview])
+    return;
+
+  [previewableContentsController_ hidePreview];
+  [self updateBookmarkBarVisibilityWithAnimation:NO];
+}
+
 - (void)sheetDidEnd:(NSWindow*)sheet
          returnCode:(NSInteger)code
             context:(void*)context {
   [sheet orderOut:self];
 }
 
 @end  // @implementation BrowserWindowController
 
 
 @implementation BrowserWindowController(Fullscreen)
@@ skipping 244 matching lines @@
 
 - (BOOL)supportsBookmarkBar {
   return [self supportsWindowFeature:Browser::FEATURE_BOOKMARKBAR];
 }
 
 - (BOOL)isNormalWindow {
   return browser_->type() == Browser::TYPE_NORMAL;
 }
 
 @end  // @implementation BrowserWindowController(WindowType)