Support the OS X find pasteboard on OS X.

chrome/browser/cocoa/find_bar_cocoa_controller.mm

 // Copyright (c) 2009 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 <Cocoa/Cocoa.h>
 
 #include "app/l10n_util.h"
 #include "base/mac_util.h"
 #include "base/sys_string_conversions.h"
 #include "grit/generated_resources.h"
 #include "chrome/browser/find_bar_controller.h"
 #include "chrome/browser/cocoa/browser_window_cocoa.h"
 #import "chrome/browser/cocoa/find_bar_cocoa_controller.h"
 #import "chrome/browser/cocoa/find_bar_bridge.h"
+#import "chrome/browser/cocoa/find_pasteboard.h"
 #import "chrome/browser/cocoa/focus_tracker.h"
 #import "chrome/browser/cocoa/tab_strip_controller.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 
 namespace {
 static float kFindBarOpenDuration = 0.2;
 static float kFindBarCloseDuration = 0.15;
 }
 
 @interface FindBarCocoaController (PrivateMethods)
 // Returns the appropriate frame for a hidden find bar.
 - (NSRect)hiddenFindBarFrame;
 
 // Sets the frame of |findBarView_|.  |duration| is ignored if |animate| is NO.
 - (void)setFindBarFrame:(NSRect)endFrame
                 animate:(BOOL)animate
                duration:(float)duration;
 @end
 
 @implementation FindBarCocoaController
 
 - (id)init {
   if ((self = [super initWithNibName:@"FindBar"
                               bundle:mac_util::MainAppBundle()])) {
+    [[NSNotificationCenter defaultCenter]
+        addObserver:self
+           selector:@selector(findPboardUpdated:)
+               name:kFindPasteboardChangedNotification
+             object:[FindPasteboard sharedInstance]];
   }
   return self;
 }
 
 - (void)dealloc {
   // All animations should be explicitly stopped by the TabContents before a tab
   // is closed.
   DCHECK(!currentAnimation_.get());
+  [[NSNotificationCenter defaultCenter] removeObserver:self];
   [super dealloc];
 }
 
 - (void)setFindBarBridge:(FindBarBridge*)findBarBridge {
   DCHECK(!findBarBridge_);  // should only be called once.
   findBarBridge_ = findBarBridge;
 }
 
 - (void)awakeFromNib {
   [findBarView_ setFrame:[self hiddenFindBarFrame]];
@@ skipping 11 matching lines @@
         false, false);
 }
 
 - (IBAction)nextResult:(id)sender {
   if (findBarBridge_)
     findBarBridge_->GetFindBarController()->tab_contents()->StartFinding(
         base::SysNSStringToUTF16([findText_ stringValue]),
         true, false);
 }
 
+- (void)findPboardUpdated:(NSNotification*)notification {
+  [self setFindText:[[FindPasteboard sharedInstance] findText]];
+}
+
 // Positions the find bar container view in the correct location based on the
 // current state of the window.  The find bar container is always positioned one
 // pixel above the infobar container.  Note that we are using the infobar
 // container location as a proxy for the toolbar location, but we cannot
 // position based on the toolbar because the toolbar is not always present (for
 // example in fullscreen windows).
 - (void)positionFindBarView:(NSView*)infoBarContainerView {
   static const int kRightEdgeOffset = 25;
   NSView* containerView = [self view];
   int containerHeight = NSHeight([containerView frame]);
@@ skipping 15 matching lines @@
 // NSControl delegate method.
 - (void)controlTextDidChange:(NSNotification *)aNotification {
   if (!findBarBridge_)
     return;
 
   TabContents* tab_contents =
       findBarBridge_->GetFindBarController()->tab_contents();
   if (!tab_contents)
     return;
 
-  string16 findText = base::SysNSStringToUTF16([findText_ stringValue]);
-  if (findText.length() > 0) {
-    tab_contents->StartFinding(findText, true, false);
+  NSString* findText = [findText_ stringValue];
+  [[FindPasteboard sharedInstance] setFindText:findText];
+
+  if ([findText length] > 0) {
+    tab_contents->StartFinding(base::SysNSStringToUTF16(findText), true, false);
   } else {
     // The textbox is empty so we reset.
     tab_contents->StopFinding(true);  // true = clear selection on page.
     [self updateUIForFindResult:tab_contents->find_result()
-          withText:string16()];
+                       withText:string16()];
   }
 }
 
 // NSControl delegate method
 - (BOOL)control:(NSControl*)control
     textView:(NSTextView*)textView
     doCommandBySelector:(SEL)command {
   if (command == @selector(insertNewline:)) {
     NSEvent* event = [NSApp currentEvent];
 
@@ skipping 72 matching lines @@
 
 - (void)restoreSavedFocus {
   if (!(focusTracker_.get() &&
         [focusTracker_ restoreFocusInWindow:[findBarView_ window]])) {
     // Fall back to giving focus to the tab contents.
     findBarBridge_->GetFindBarController()->tab_contents()->Focus();
   }
   focusTracker_.reset(nil);
 }
 
-- (void)setFindText:(const string16&)findText {
-  [findText_ setStringValue:base::SysUTF16ToNSString(findText)];
+- (void)setFindText:(NSString*)findText {
+  [findText_ setStringValue:findText];
+
+  // Make sure the text in the find bar always ends up in the find pasteboard
+  // (and, via notifications, in the other find bars too).
+  [[FindPasteboard sharedInstance] setFindText:findText];
 }
 
 - (void)clearResults:(const FindNotificationDetails&)results {
   // Just call updateUIForFindResult, which will take care of clearing
   // the search text and the results label.
   [self updateUIForFindResult:results withText:string16()];
 }
 
 - (void)updateUIForFindResult:(const FindNotificationDetails&)result
                      withText:(const string16&)findText {
@@ skipping 34 matching lines @@
   // Resize |resultsLabel_| to completely contain its string and right-justify
   // it within |findText_|.  sizeToFit may shrink the frame vertically, which we
   // don't want, so we save the original vertical positioning.
   NSRect labelFrame = [resultsLabel_ frame];
   [resultsLabel_ sizeToFit];
   labelFrame.size.width = [resultsLabel_ frame].size.width;
   labelFrame.origin.x = NSMaxX([findText_ frame]) - labelFrame.size.width;
   [resultsLabel_ setFrame:labelFrame];
 
   // TODO(rohitrao): If the search string is too long, then it will overlap with
-  // the results label.  Fix.
+  // the results label. Fix. Perhaps use the code that fades out the tab titles
+  // if they are too long.
 }
 
 - (BOOL)isFindBarVisible {
   // Find bar is visible if any part of it is on the screen.
   return NSIntersectsRect([[self view] bounds], [findBarView_ frame]);
 }
 
 // NSAnimation delegate methods.
 - (void)animationDidEnd:(NSAnimation*)animation {
   // Autorelease the animation (cannot use release because the animation object
@@ skipping 36 matching lines @@
 
   currentAnimation_.reset(
       [[NSViewAnimation alloc]
         initWithViewAnimations:[NSArray arrayWithObjects:dict, nil]]);
   [currentAnimation_ setDuration:duration];
   [currentAnimation_ setDelegate:self];
   [currentAnimation_ startAnimation];
 }
 
 @end