src/chrome/browser/ui/cocoa/find_bar/find_bar_cocoa_controller.mm

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #import <Cocoa/Cocoa.h>
   6
   7 #include "base/auto_reset.h"
   8 #include "base/mac/bundle_locations.h"
   9 #include "base/mac/mac_util.h"
  10 #include "base/strings/sys_string_conversions.h"
  11 #include "grit/theme_resources.h"
  12 #include "grit/ui_resources.h"
  13 #include "chrome/browser/ui/browser_finder.h"
  14 #include "chrome/browser/ui/browser_window.h"
  15 #include "chrome/browser/ui/cocoa/browser_window_controller.h"
  16 #import "chrome/browser/ui/cocoa/find_bar/find_bar_bridge.h"
  17 #import "chrome/browser/ui/cocoa/find_bar/find_bar_cocoa_controller.h"
  18 #import "chrome/browser/ui/cocoa/find_bar/find_bar_text_field.h"
  19 #import "chrome/browser/ui/cocoa/find_bar/find_bar_text_field_cell.h"
  20 #import "chrome/browser/ui/cocoa/image_button_cell.h"
  21 #import "chrome/browser/ui/cocoa/nsview_additions.h"
  22 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
  23 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
  24 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
  25 #include "content/public/browser/render_view_host.h"
  26 #include "content/public/browser/web_contents.h"
  27 #include "content/public/browser/web_contents_view.h"
  28 #import "third_party/GTM/AppKit/GTMNSAnimation+Duration.h"
  29 #import "ui/base/cocoa/find_pasteboard.h"
  30 #import "ui/base/cocoa/focus_tracker.h"
  31
  32 using content::NativeWebKeyboardEvent;
  33
  34 const float kFindBarOpenDuration = 0.2;
  35 const float kFindBarCloseDuration = 0.15;
  36 const float kFindBarMoveDuration = 0.15;
  37 const float kRightEdgeOffset = 25;
  38
  39
  40 @interface FindBarCocoaController (PrivateMethods) <NSAnimationDelegate>
  41 // Returns the appropriate frame for a hidden find bar.
  42 - (NSRect)hiddenFindBarFrame;
  43
  44 // Animates the given |view| to the given |endFrame| within |duration| seconds.
  45 // Returns a new NSViewAnimation.
  46 - (NSViewAnimation*)createAnimationForView:(NSView*)view
  47                                    toFrame:(NSRect)endFrame
  48                                   duration:(float)duration;
  49
  50 // Sets the frame of |findBarView_|.  |duration| is ignored if |animate| is NO.
  51 - (void)setFindBarFrame:(NSRect)endFrame
  52                 animate:(BOOL)animate
  53                duration:(float)duration;
  54
  55 // Returns the horizontal position the FindBar should use in order to avoid
  56 // overlapping with the current find result, if there's one.
  57 - (float)findBarHorizontalPosition;
  58
  59 // Adjusts the horizontal position if necessary to avoid overlapping with the
  60 // current find result.
  61 - (void)moveFindBarIfNecessary:(BOOL)animate;
  62
  63 // Puts |text| into the find bar and enables the buttons, but doesn't start a
  64 // new search for |text|.
  65 - (void)prepopulateText:(NSString*)text;
  66
  67 // Clears the find results for all tabs in browser associated with this find
  68 // bar. If |suppressPboardUpdateActions_| is true then the current tab is not
  69 // cleared.
  70 - (void)clearFindResultsForCurrentBrowser;
  71
  72 - (BrowserWindowController*)browserWindowController;
  73 @end
  74
  75 @implementation FindBarCocoaController
  76
  77 @synthesize findBarView = findBarView_;
  78
  79 - (id)initWithBrowser:(Browser*)browser {
  80   if ((self = [super initWithNibName:@"FindBar"
  81                               bundle:base::mac::FrameworkBundle()])) {
  82     [[NSNotificationCenter defaultCenter]
  83         addObserver:self
  84            selector:@selector(findPboardUpdated:)
  85                name:kFindPasteboardChangedNotification
  86              object:[FindPasteboard sharedInstance]];
  87     browser_ = browser;
  88   }
  89   return self;
  90 }
  91
  92 - (void)dealloc {
  93   // All animations should have been explicitly stopped before a tab is closed.
  94   DCHECK(!showHideAnimation_.get());
  95   DCHECK(!moveAnimation_.get());
  96   [[NSNotificationCenter defaultCenter] removeObserver:self];
  97   [super dealloc];
  98 }
  99
 100 - (void)setFindBarBridge:(FindBarBridge*)findBarBridge {
 101   DCHECK(!findBarBridge_);  // should only be called once.
 102   findBarBridge_ = findBarBridge;
 103 }
 104
 105 - (void)awakeFromNib {
 106   [[closeButton_ cell] setImageID:IDR_CLOSE_1
 107                    forButtonState:image_button_cell::kDefaultState];
 108   [[closeButton_ cell] setImageID:IDR_CLOSE_1_H
 109                    forButtonState:image_button_cell::kHoverState];
 110   [[closeButton_ cell] setImageID:IDR_CLOSE_1_P
 111                    forButtonState:image_button_cell::kPressedState];
 112   [[closeButton_ cell] setImageID:IDR_CLOSE_1
 113                    forButtonState:image_button_cell::kDisabledState];
 114
 115   [findBarView_ setFrame:[self hiddenFindBarFrame]];
 116   defaultWidth_ = NSWidth([findBarView_ frame]);
 117
 118   [self prepopulateText:[[FindPasteboard sharedInstance] findText]];
 119 }
 120
 121 - (IBAction)close:(id)sender {
 122   if (findBarBridge_)
 123     findBarBridge_->GetFindBarController()->EndFindSession(
 124         FindBarController::kKeepSelectionOnPage,
 125         FindBarController::kKeepResultsInFindBox);
 126
 127   // Turn off hover state on close button else the button will remain
 128   // hovered when we bring the find bar back up.
 129   // crbug.com/227424
 130   [[closeButton_ cell] setIsMouseInside:NO];
 131 }
 132
 133 - (IBAction)previousResult:(id)sender {
 134   if (findBarBridge_) {
 135     FindTabHelper* findTabHelper = FindTabHelper::FromWebContents(
 136         findBarBridge_->GetFindBarController()->web_contents());
 137     findTabHelper->StartFinding(
 138         base::SysNSStringToUTF16([findText_ stringValue]),
 139         false, false);
 140   }
 141 }
 142
 143 - (IBAction)nextResult:(id)sender {
 144   if (findBarBridge_) {
 145     FindTabHelper* findTabHelper = FindTabHelper::FromWebContents(
 146         findBarBridge_->GetFindBarController()->web_contents());
 147     findTabHelper->StartFinding(
 148         base::SysNSStringToUTF16([findText_ stringValue]),
 149         true, false);
 150   }
 151 }
 152
 153 - (void)findPboardUpdated:(NSNotification*)notification {
 154   if (!suppressPboardUpdateActions_)
 155     [self prepopulateText:[[FindPasteboard sharedInstance] findText]];
 156   [self clearFindResultsForCurrentBrowser];
 157 }
 158
 159 - (void)positionFindBarViewAtMaxY:(CGFloat)maxY maxWidth:(CGFloat)maxWidth {
 160   NSView* containerView = [self view];
 161   CGFloat containerHeight = NSHeight([containerView frame]);
 162   CGFloat containerWidth = std::min(maxWidth, defaultWidth_);
 163
 164   // Adjust where we'll actually place the find bar.
 165   maxY += [containerView cr_lineWidth];
 166   maxY_ = maxY;
 167   CGFloat x = [self findBarHorizontalPosition];
 168   NSRect newFrame = NSMakeRect(x, maxY - containerHeight,
 169                                containerWidth, containerHeight);
 170
 171   if (moveAnimation_.get() != nil) {
 172     NSRect frame = [containerView frame];
 173     [moveAnimation_ stopAnimation];
 174     // Restore to the X position before the animation was stopped. The Y
 175     // position is immediately adjusted.
 176     frame.origin.y = newFrame.origin.y;
 177     [containerView setFrame:frame];
 178     moveAnimation_.reset([self createAnimationForView:containerView
 179                                               toFrame:newFrame
 180                                              duration:kFindBarMoveDuration]);
 181   } else {
 182     [containerView setFrame:newFrame];
 183   }
 184 }
 185
 186 - (BOOL)isOffTheRecordProfile {
 187   return browser_ && browser_->profile() &&
 188          browser_->profile()->IsOffTheRecord();
 189 }
 190
 191 // NSControl delegate method.
 192 - (void)controlTextDidChange:(NSNotification*)aNotification {
 193   if (!findBarBridge_)
 194     return;
 195
 196   content::WebContents* webContents =
 197       findBarBridge_->GetFindBarController()->web_contents();
 198   if (!webContents)
 199     return;
 200   FindTabHelper* findTabHelper = FindTabHelper::FromWebContents(webContents);
 201
 202   NSString* findText = [findText_ stringValue];
 203   if (![self isOffTheRecordProfile]) {
 204     base::AutoReset<BOOL> suppressReset(&suppressPboardUpdateActions_, YES);
 205     [[FindPasteboard sharedInstance] setFindText:findText];
 206   }
 207
 208   if ([findText length] > 0) {
 209     findTabHelper->
 210         StartFinding(base::SysNSStringToUTF16(findText), true, false);
 211   } else {
 212     // The textbox is empty so we reset.
 213     findTabHelper->StopFinding(FindBarController::kClearSelectionOnPage);
 214     [self updateUIForFindResult:findTabHelper->find_result()
 215                        withText:string16()];
 216   }
 217 }
 218
 219 // NSControl delegate method
 220 - (BOOL)control:(NSControl*)control
 221     textView:(NSTextView*)textView
 222     doCommandBySelector:(SEL)command {
 223   if (command == @selector(insertNewline:)) {
 224     // Pressing Return
 225     NSEvent* event = [NSApp currentEvent];
 226
 227     if ([event modifierFlags] & NSShiftKeyMask)
 228       [previousButton_ performClick:nil];
 229     else
 230       [nextButton_ performClick:nil];
 231
 232     return YES;
 233   } else if (command == @selector(insertLineBreak:)) {
 234     // Pressing Ctrl-Return
 235     if (findBarBridge_) {
 236       findBarBridge_->GetFindBarController()->EndFindSession(
 237           FindBarController::kActivateSelectionOnPage,
 238           FindBarController::kClearResultsInFindBox);
 239     }
 240     return YES;
 241   } else if (command == @selector(pageUp:) ||
 242              command == @selector(pageUpAndModifySelection:) ||
 243              command == @selector(scrollPageUp:) ||
 244              command == @selector(pageDown:) ||
 245              command == @selector(pageDownAndModifySelection:) ||
 246              command == @selector(scrollPageDown:) ||
 247              command == @selector(scrollToBeginningOfDocument:) ||
 248              command == @selector(scrollToEndOfDocument:) ||
 249              command == @selector(moveUp:) ||
 250              command == @selector(moveDown:)) {
 251     content::WebContents* web_contents =
 252         findBarBridge_->GetFindBarController()->web_contents();
 253     if (!web_contents)
 254       return NO;
 255
 256     // Sanity-check to make sure we got a keyboard event.
 257     NSEvent* event = [NSApp currentEvent];
 258     if ([event type] != NSKeyDown && [event type] != NSKeyUp)
 259       return NO;
 260
 261     // Forward the event to the renderer.
 262     // TODO(rohitrao): Should this call -[BaseView keyEvent:]?  Is there code in
 263     // that function that we want to keep or avoid? Calling
 264     // |ForwardKeyboardEvent()| directly ignores edit commands, which breaks
 265     // cmd-up/down if we ever decide to include |moveToBeginningOfDocument:| in
 266     // the list above.
 267     content::RenderViewHost* render_view_host =
 268         web_contents->GetRenderViewHost();
 269     render_view_host->ForwardKeyboardEvent(NativeWebKeyboardEvent(event));
 270     return YES;
 271   }
 272
 273   return NO;
 274 }
 275
 276 // Methods from FindBar
 277 - (void)showFindBar:(BOOL)animate {
 278   // Save the currently-focused view.  |findBarView_| is in the view
 279   // hierarchy by now.  showFindBar can be called even when the
 280   // findbar is already open, so do not overwrite an already saved
 281   // view.
 282   if (!focusTracker_.get())
 283     focusTracker_.reset(
 284         [[FocusTracker alloc] initWithWindow:[findBarView_ window]]);
 285
 286   // The browser window might have changed while the FindBar was hidden.
 287   // Update its position now.
 288   [[self browserWindowController] layoutSubviews];
 289
 290   // Move to the correct horizontal position first, to prevent the FindBar
 291   // from jumping around when switching tabs.
 292   // Prevent jumping while the FindBar is animating (hiding, then showing) too.
 293   if (![self isFindBarVisible])
 294     [self moveFindBarIfNecessary:NO];
 295
 296   // Animate the view into place.
 297   NSRect frame = [findBarView_ frame];
 298   frame.origin = NSZeroPoint;
 299   [self setFindBarFrame:frame animate:animate duration:kFindBarOpenDuration];
 300 }
 301
 302 - (void)hideFindBar:(BOOL)animate {
 303   NSRect frame = [self hiddenFindBarFrame];
 304   [self setFindBarFrame:frame animate:animate duration:kFindBarCloseDuration];
 305 }
 306
 307 - (void)stopAnimation {
 308   if (showHideAnimation_.get()) {
 309     [showHideAnimation_ stopAnimation];
 310     showHideAnimation_.reset(nil);
 311   }
 312   if (moveAnimation_.get()) {
 313     [moveAnimation_ stopAnimation];
 314     moveAnimation_.reset(nil);
 315   }
 316 }
 317
 318 - (void)setFocusAndSelection {
 319   [[findText_ window] makeFirstResponder:findText_];
 320
 321   // Enable the buttons if the find text is non-empty.
 322   BOOL buttonsEnabled = ([[findText_ stringValue] length] > 0) ? YES : NO;
 323   [previousButton_ setEnabled:buttonsEnabled];
 324   [nextButton_ setEnabled:buttonsEnabled];
 325 }
 326
 327 - (void)restoreSavedFocus {
 328   if (!(focusTracker_.get() &&
 329         [focusTracker_ restoreFocusInWindow:[findBarView_ window]])) {
 330     // Fall back to giving focus to the tab contents.
 331     findBarBridge_->GetFindBarController()->web_contents()->GetView()->Focus();
 332   }
 333   focusTracker_.reset(nil);
 334 }
 335
 336 - (void)setFindText:(NSString*)findText
 337       selectedRange:(const NSRange&)selectedRange {
 338   [findText_ setStringValue:findText];
 339
 340   if (![self isOffTheRecordProfile]) {
 341     // Make sure the text in the find bar always ends up in the find pasteboard
 342     // (and, via notifications, in the other find bars too).
 343     base::AutoReset<BOOL> suppressReset(&suppressPboardUpdateActions_, YES);
 344     [[FindPasteboard sharedInstance] setFindText:findText];
 345   }
 346
 347   NSText* editor = [findText_ currentEditor];
 348   if (selectedRange.location != NSNotFound)
 349     [editor setSelectedRange:selectedRange];
 350 }
 351
 352 - (NSString*)findText {
 353   return [findText_ stringValue];
 354 }
 355
 356 - (NSRange)selectedRange {
 357   NSText* editor = [findText_ currentEditor];
 358   return (editor != nil) ? [editor selectedRange] : NSMakeRange(NSNotFound, 0);
 359 }
 360
 361 - (NSString*)matchCountText {
 362   return [[findText_ findBarTextFieldCell] resultsString];
 363 }
 364
 365 - (void)updateFindBarForChangedWebContents {
 366   content::WebContents* contents =
 367       findBarBridge_->GetFindBarController()->web_contents();
 368   if (!contents)
 369     return;
 370   FindTabHelper* findTabHelper = FindTabHelper::FromWebContents(contents);
 371
 372   // If the find UI is visible but the results are cleared then also clear
 373   // the results label and update the buttons.
 374   if (findTabHelper->find_ui_active() &&
 375       findTabHelper->previous_find_text().empty()) {
 376     BOOL buttonsEnabled = [[findText_ stringValue] length] > 0 ? YES : NO;
 377     [previousButton_ setEnabled:buttonsEnabled];
 378     [nextButton_ setEnabled:buttonsEnabled];
 379     [[findText_ findBarTextFieldCell] clearResults];
 380   }
 381 }
 382
 383 - (void)clearResults:(const FindNotificationDetails&)results {
 384   // Just call updateUIForFindResult, which will take care of clearing
 385   // the search text and the results label.
 386   [self updateUIForFindResult:results withText:string16()];
 387 }
 388
 389 - (void)updateUIForFindResult:(const FindNotificationDetails&)result
 390                      withText:(const string16&)findText {
 391   // If we don't have any results and something was passed in, then
 392   // that means someone pressed Cmd-G while the Find box was
 393   // closed. In that case we need to repopulate the Find box with what
 394   // was passed in.
 395   if ([[findText_ stringValue] length] == 0 && !findText.empty()) {
 396     [findText_ setStringValue:base::SysUTF16ToNSString(findText)];
 397     [findText_ selectText:self];
 398   }
 399
 400   // Make sure Find Next and Find Previous are enabled if we found any matches.
 401   BOOL buttonsEnabled = result.number_of_matches() > 0;
 402   [previousButton_ setEnabled:buttonsEnabled];
 403   [nextButton_ setEnabled:buttonsEnabled];
 404
 405   // Update the results label.
 406   BOOL validRange = result.active_match_ordinal() != -1 &&
 407                     result.number_of_matches() != -1;
 408   NSString* searchString = [findText_ stringValue];
 409   if ([searchString length] > 0 && validRange) {
 410     [[findText_ findBarTextFieldCell]
 411         setActiveMatch:result.active_match_ordinal()
 412                     of:result.number_of_matches()];
 413   } else {
 414     // If there was no text entered, we don't show anything in the results area.
 415     [[findText_ findBarTextFieldCell] clearResults];
 416   }
 417
 418   [findText_ resetFieldEditorFrameIfNeeded];
 419
 420   // If we found any results, reset the focus tracker, so we always
 421   // restore focus to the tab contents.
 422   if (result.number_of_matches() > 0)
 423     focusTracker_.reset(nil);
 424
 425   // Adjust the FindBar position, even when there are no matches (so that it
 426   // goes back to the default position, if required).
 427   [self moveFindBarIfNecessary:[self isFindBarVisible]];
 428 }
 429
 430 - (BOOL)isFindBarVisible {
 431   // Find bar is visible if any part of it is on the screen.
 432   return NSIntersectsRect([[self view] bounds], [findBarView_ frame]);
 433 }
 434
 435 - (BOOL)isFindBarAnimating {
 436   return (showHideAnimation_.get() != nil) || (moveAnimation_.get() != nil);
 437 }
 438
 439 // NSAnimation delegate methods.
 440 - (void)animationDidEnd:(NSAnimation*)animation {
 441   // Autorelease the animations (cannot use release because the animation object
 442   // is still on the stack.
 443   if (animation == showHideAnimation_.get()) {
 444     [showHideAnimation_.release() autorelease];
 445   } else if (animation == moveAnimation_.get()) {
 446     [moveAnimation_.release() autorelease];
 447   } else {
 448     NOTREACHED();
 449   }
 450
 451   // If the find bar is not visible, make it actually hidden, so it'll no longer
 452   // respond to key events.
 453   [findBarView_ setHidden:![self isFindBarVisible]];
 454   [[self browserWindowController] onFindBarVisibilityChanged];
 455 }
 456
 457 - (gfx::Point)findBarWindowPosition {
 458   gfx::Rect viewRect(NSRectToCGRect([[self view] frame]));
 459   // Convert Cocoa coordinates (Y growing up) to Y growing down.
 460   // Offset from |maxY_|, which represents the content view's top, instead
 461   // of from the superview, which represents the whole browser window.
 462   viewRect.set_y(maxY_ - viewRect.bottom());
 463   return viewRect.origin();
 464 }
 465
 466 - (int)findBarWidth {
 467   return NSWidth([[self view] frame]);
 468 }
 469
 470 @end
 471
 472 @implementation FindBarCocoaController (PrivateMethods)
 473
 474 - (NSRect)hiddenFindBarFrame {
 475   NSRect frame = [findBarView_ frame];
 476   NSRect containerBounds = [[self view] bounds];
 477   frame.origin = NSMakePoint(NSMinX(containerBounds), NSMaxY(containerBounds));
 478   return frame;
 479 }
 480
 481 - (NSViewAnimation*)createAnimationForView:(NSView*)view
 482                                    toFrame:(NSRect)endFrame
 483                                   duration:(float)duration {
 484   NSDictionary* dict = [NSDictionary dictionaryWithObjectsAndKeys:
 485       view, NSViewAnimationTargetKey,
 486       [NSValue valueWithRect:endFrame], NSViewAnimationEndFrameKey, nil];
 487
 488   NSViewAnimation* animation =
 489       [[NSViewAnimation alloc]
 490         initWithViewAnimations:[NSArray arrayWithObjects:dict, nil]];
 491   [animation gtm_setDuration:duration
 492                    eventMask:NSLeftMouseUpMask];
 493   [animation setDelegate:self];
 494   [animation startAnimation];
 495   return animation;
 496 }
 497
 498 - (void)setFindBarFrame:(NSRect)endFrame
 499                 animate:(BOOL)animate
 500                duration:(float)duration {
 501   // Save the current frame.
 502   NSRect startFrame = [findBarView_ frame];
 503
 504   // Stop any existing animations.
 505   [showHideAnimation_ stopAnimation];
 506
 507   if (!animate) {
 508     [findBarView_ setFrame:endFrame];
 509     [findBarView_ setHidden:![self isFindBarVisible]];
 510     [[self browserWindowController] onFindBarVisibilityChanged];
 511     showHideAnimation_.reset(nil);
 512     return;
 513   }
 514
 515   // If animating, ensure that the find bar is not hidden. Hidden status will be
 516   // updated at the end of the animation.
 517   [findBarView_ setHidden:NO];
 518   //[[self browserWindowController] onFindBarVisibilityChanged];
 519
 520   // Reset the frame to what was saved above.
 521   [findBarView_ setFrame:startFrame];
 522
 523   [[self browserWindowController] onFindBarVisibilityChanged];
 524
 525   showHideAnimation_.reset([self createAnimationForView:findBarView_
 526                                                 toFrame:endFrame
 527                                                duration:duration]);
 528 }
 529
 530 - (float)findBarHorizontalPosition {
 531   // Get the rect of the FindBar.
 532   NSView* view = [self view];
 533   NSRect frame = [view frame];
 534   gfx::Rect viewRect(NSRectToCGRect(frame));
 535
 536   if (!findBarBridge_ || !findBarBridge_->GetFindBarController())
 537     return frame.origin.x;
 538   content::WebContents* contents =
 539       findBarBridge_->GetFindBarController()->web_contents();
 540   if (!contents)
 541     return frame.origin.x;
 542
 543   // Get the size of the container.
 544   gfx::Rect containerRect(contents->GetView()->GetContainerSize());
 545
 546   // Position the FindBar on the top right corner.
 547   viewRect.set_x(
 548       containerRect.width() - viewRect.width() - kRightEdgeOffset);
 549   // Convert from Cocoa coordinates (Y growing up) to Y growing down.
 550   // Notice that the view frame's Y offset is relative to the whole window,
 551   // while GetLocationForFindbarView() expects it relative to the
 552   // content's boundaries. |maxY_| has the correct placement in Cocoa coords,
 553   // so we just have to invert the Y coordinate.
 554   viewRect.set_y(maxY_ - viewRect.bottom());
 555
 556   // Get the rect of the current find result, if there is one.
 557   const FindNotificationDetails& findResult =
 558       FindTabHelper::FromWebContents(contents)->find_result();
 559   if (findResult.number_of_matches() == 0)
 560     return viewRect.x();
 561   gfx::Rect selectionRect(findResult.selection_rect());
 562
 563   // Adjust |view_rect| to avoid the |selection_rect| within |container_rect|.
 564   gfx::Rect newPos = FindBarController::GetLocationForFindbarView(
 565       viewRect, containerRect, selectionRect);
 566
 567   return newPos.x();
 568 }
 569
 570 - (void)moveFindBarIfNecessary:(BOOL)animate {
 571   // Don't animate during tests.
 572   if (FindBarBridge::disable_animations_during_testing_)
 573     animate = NO;
 574
 575   NSView* view = [self view];
 576   NSRect frame = [view frame];
 577   float x = [self findBarHorizontalPosition];
 578   if (frame.origin.x == x)
 579     return;
 580
 581   if (animate) {
 582     [moveAnimation_ stopAnimation];
 583     // Restore to the position before the animation was stopped.
 584     [view setFrame:frame];
 585     frame.origin.x = x;
 586     moveAnimation_.reset([self createAnimationForView:view
 587                                               toFrame:frame
 588                                              duration:kFindBarMoveDuration]);
 589   } else {
 590     frame.origin.x = x;
 591     [view setFrame:frame];
 592   }
 593 }
 594
 595 - (void)prepopulateText:(NSString*)text {
 596   [self setFindText:text selectedRange:NSMakeRange(NSNotFound, 0)];
 597
 598   // Has to happen after |ClearResults()| above.
 599   BOOL buttonsEnabled = [text length] > 0 ? YES : NO;
 600   [previousButton_ setEnabled:buttonsEnabled];
 601   [nextButton_ setEnabled:buttonsEnabled];
 602 }
 603
 604 - (void)clearFindResultsForCurrentBrowser {
 605   if (!browser_)
 606     return;
 607
 608   content::WebContents* activeWebContents =
 609       findBarBridge_->GetFindBarController()->web_contents();
 610
 611   TabStripModel* tabStripModel = browser_->tab_strip_model();
 612   for (int i = 0; i < tabStripModel->count(); ++i) {
 613     content::WebContents* webContents = tabStripModel->GetWebContentsAt(i);
 614     if (suppressPboardUpdateActions_ && activeWebContents == webContents)
 615       continue;
 616     FindTabHelper* findTabHelper =
 617         FindTabHelper::FromWebContents(webContents);
 618     findTabHelper->StopFinding(FindBarController::kClearSelectionOnPage);
 619     findBarBridge_->ClearResults(findTabHelper->find_result());
 620   }
 621 }
 622
 623 - (BrowserWindowController*)browserWindowController {
 624   if (!browser_)
 625     return nil;
 626   return [BrowserWindowController
 627       browserWindowControllerForWindow:browser_->window()->GetNativeWindow()];
 628 }
 629
 630 @end