web_contents_view_mac.mm revision 010d83a9304c5a91596085d917d248abff47903a
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 <Carbon/Carbon.h> 6 7#import "content/browser/web_contents/web_contents_view_mac.h" 8 9#include <string> 10 11#import "base/mac/scoped_sending_event.h" 12#include "base/message_loop/message_loop.h" 13#import "base/message_loop/message_pump_mac.h" 14#include "content/browser/renderer_host/popup_menu_helper_mac.h" 15#include "content/browser/renderer_host/render_view_host_factory.h" 16#include "content/browser/renderer_host/render_view_host_impl.h" 17#include "content/browser/renderer_host/render_widget_host_view_mac.h" 18#include "content/browser/web_contents/web_contents_impl.h" 19#import "content/browser/web_contents/web_drag_dest_mac.h" 20#import "content/browser/web_contents/web_drag_source_mac.h" 21#include "content/common/view_messages.h" 22#include "content/public/browser/web_contents_delegate.h" 23#include "content/public/browser/web_contents_view_delegate.h" 24#include "skia/ext/skia_utils_mac.h" 25#import "third_party/mozilla/NSPasteboard+Utils.h" 26#include "ui/base/clipboard/custom_data_helper.h" 27#import "ui/base/cocoa/focus_tracker.h" 28#include "ui/base/dragdrop/cocoa_dnd_util.h" 29#include "ui/gfx/image/image_skia_util_mac.h" 30 31using blink::WebDragOperation; 32using blink::WebDragOperationsMask; 33using content::DropData; 34using content::PopupMenuHelper; 35using content::RenderViewHostFactory; 36using content::RenderWidgetHostView; 37using content::RenderWidgetHostViewMac; 38using content::WebContents; 39using content::WebContentsImpl; 40using content::WebContentsViewMac; 41 42// Ensure that the blink::WebDragOperation enum values stay in sync with 43// NSDragOperation constants, since the code below static_casts between 'em. 44#define COMPILE_ASSERT_MATCHING_ENUM(name) \ 45 COMPILE_ASSERT(int(NS##name) == int(blink::Web##name), enum_mismatch_##name) 46COMPILE_ASSERT_MATCHING_ENUM(DragOperationNone); 47COMPILE_ASSERT_MATCHING_ENUM(DragOperationCopy); 48COMPILE_ASSERT_MATCHING_ENUM(DragOperationLink); 49COMPILE_ASSERT_MATCHING_ENUM(DragOperationGeneric); 50COMPILE_ASSERT_MATCHING_ENUM(DragOperationPrivate); 51COMPILE_ASSERT_MATCHING_ENUM(DragOperationMove); 52COMPILE_ASSERT_MATCHING_ENUM(DragOperationDelete); 53COMPILE_ASSERT_MATCHING_ENUM(DragOperationEvery); 54 55@interface WebContentsViewCocoa (Private) 56- (id)initWithWebContentsViewMac:(WebContentsViewMac*)w; 57- (void)registerDragTypes; 58- (void)setCurrentDragOperation:(NSDragOperation)operation; 59- (DropData*)dropData; 60- (void)startDragWithDropData:(const DropData&)dropData 61 dragOperationMask:(NSDragOperation)operationMask 62 image:(NSImage*)image 63 offset:(NSPoint)offset; 64- (void)cancelDeferredClose; 65- (void)clearWebContentsView; 66- (void)closeTabAfterEvent; 67- (void)viewDidBecomeFirstResponder:(NSNotification*)notification; 68@end 69 70namespace content { 71WebContentsView* CreateWebContentsView( 72 WebContentsImpl* web_contents, 73 WebContentsViewDelegate* delegate, 74 RenderViewHostDelegateView** render_view_host_delegate_view) { 75 WebContentsViewMac* rv = new WebContentsViewMac(web_contents, delegate); 76 *render_view_host_delegate_view = rv; 77 return rv; 78} 79 80WebContentsViewMac::WebContentsViewMac(WebContentsImpl* web_contents, 81 WebContentsViewDelegate* delegate) 82 : web_contents_(web_contents), 83 delegate_(delegate), 84 allow_overlapping_views_(false), 85 overlay_view_(NULL), 86 underlay_view_(NULL) { 87} 88 89WebContentsViewMac::~WebContentsViewMac() { 90 // This handles the case where a renderer close call was deferred 91 // while the user was operating a UI control which resulted in a 92 // close. In that case, the Cocoa view outlives the 93 // WebContentsViewMac instance due to Cocoa retain count. 94 [cocoa_view_ cancelDeferredClose]; 95 [cocoa_view_ clearWebContentsView]; 96} 97 98gfx::NativeView WebContentsViewMac::GetNativeView() const { 99 return cocoa_view_.get(); 100} 101 102gfx::NativeView WebContentsViewMac::GetContentNativeView() const { 103 RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView(); 104 if (!rwhv) 105 return NULL; 106 return rwhv->GetNativeView(); 107} 108 109gfx::NativeWindow WebContentsViewMac::GetTopLevelNativeWindow() const { 110 return [cocoa_view_.get() window]; 111} 112 113void WebContentsViewMac::GetContainerBounds(gfx::Rect* out) const { 114 // Convert bounds to window coordinate space. 115 NSRect bounds = 116 [cocoa_view_.get() convertRect:[cocoa_view_.get() bounds] toView:nil]; 117 118 // Convert bounds to screen coordinate space. 119 NSWindow* window = [cocoa_view_.get() window]; 120 bounds.origin = [window convertBaseToScreen:bounds.origin]; 121 122 // Flip y to account for screen flip. 123 NSScreen* screen = [[NSScreen screens] objectAtIndex:0]; 124 bounds.origin.y = [screen frame].size.height - bounds.origin.y 125 - bounds.size.height; 126 *out = gfx::Rect(NSRectToCGRect(bounds)); 127} 128 129void WebContentsViewMac::StartDragging( 130 const DropData& drop_data, 131 WebDragOperationsMask allowed_operations, 132 const gfx::ImageSkia& image, 133 const gfx::Vector2d& image_offset, 134 const DragEventSourceInfo& event_info) { 135 // By allowing nested tasks, the code below also allows Close(), 136 // which would deallocate |this|. The same problem can occur while 137 // processing -sendEvent:, so Close() is deferred in that case. 138 // Drags from web content do not come via -sendEvent:, this sets the 139 // same flag -sendEvent: would. 140 base::mac::ScopedSendingEvent sending_event_scoper; 141 142 // The drag invokes a nested event loop, arrange to continue 143 // processing events. 144 base::MessageLoop::ScopedNestableTaskAllower allow( 145 base::MessageLoop::current()); 146 NSDragOperation mask = static_cast<NSDragOperation>(allowed_operations); 147 NSPoint offset = NSPointFromCGPoint( 148 gfx::PointAtOffsetFromOrigin(image_offset).ToCGPoint()); 149 [cocoa_view_ startDragWithDropData:drop_data 150 dragOperationMask:mask 151 image:gfx::NSImageFromImageSkia(image) 152 offset:offset]; 153} 154 155void WebContentsViewMac::SizeContents(const gfx::Size& size) { 156 // TODO(brettw | japhet) This is a hack and should be removed. 157 // See web_contents_view.h. 158 // Note(erikchen): This method has /never/ worked correctly. I've removed the 159 // previous implementation. 160} 161 162void WebContentsViewMac::Focus() { 163 NSWindow* window = [cocoa_view_.get() window]; 164 [window makeFirstResponder:GetContentNativeView()]; 165 if (![window isVisible]) 166 return; 167 [window makeKeyAndOrderFront:nil]; 168} 169 170void WebContentsViewMac::SetInitialFocus() { 171 if (web_contents_->FocusLocationBarByDefault()) 172 web_contents_->SetFocusToLocationBar(false); 173 else 174 [[cocoa_view_.get() window] makeFirstResponder:GetContentNativeView()]; 175} 176 177void WebContentsViewMac::StoreFocus() { 178 // We're explicitly being asked to store focus, so don't worry if there's 179 // already a view saved. 180 focus_tracker_.reset( 181 [[FocusTracker alloc] initWithWindow:[cocoa_view_ window]]); 182} 183 184void WebContentsViewMac::RestoreFocus() { 185 // TODO(avi): Could we be restoring a view that's no longer in the key view 186 // chain? 187 if (!(focus_tracker_.get() && 188 [focus_tracker_ restoreFocusInWindow:[cocoa_view_ window]])) { 189 // Fall back to the default focus behavior if we could not restore focus. 190 // TODO(shess): If location-bar gets focus by default, this will 191 // select-all in the field. If there was a specific selection in 192 // the field when we navigated away from it, we should restore 193 // that selection. 194 SetInitialFocus(); 195 } 196 197 focus_tracker_.reset(nil); 198} 199 200DropData* WebContentsViewMac::GetDropData() const { 201 return [cocoa_view_ dropData]; 202} 203 204void WebContentsViewMac::UpdateDragCursor(WebDragOperation operation) { 205 [cocoa_view_ setCurrentDragOperation: operation]; 206} 207 208void WebContentsViewMac::GotFocus() { 209 // This is only used in the views FocusManager stuff but it bleeds through 210 // all subclasses. http://crbug.com/21875 211} 212 213// This is called when the renderer asks us to take focus back (i.e., it has 214// iterated past the last focusable element on the page). 215void WebContentsViewMac::TakeFocus(bool reverse) { 216 if (reverse) { 217 [[cocoa_view_ window] selectPreviousKeyView:cocoa_view_.get()]; 218 } else { 219 [[cocoa_view_ window] selectNextKeyView:cocoa_view_.get()]; 220 } 221} 222 223void WebContentsViewMac::ShowContextMenu( 224 content::RenderFrameHost* render_frame_host, 225 const ContextMenuParams& params) { 226 // Allow delegates to handle the context menu operation first. 227 if (web_contents_->GetDelegate() && 228 web_contents_->GetDelegate()->HandleContextMenu(params)) { 229 return; 230 } 231 232 if (delegate()) 233 delegate()->ShowContextMenu(render_frame_host, params); 234 else 235 DLOG(ERROR) << "Cannot show context menus without a delegate."; 236} 237 238// Display a popup menu for WebKit using Cocoa widgets. 239void WebContentsViewMac::ShowPopupMenu( 240 const gfx::Rect& bounds, 241 int item_height, 242 double item_font_size, 243 int selected_item, 244 const std::vector<MenuItem>& items, 245 bool right_aligned, 246 bool allow_multiple_selection) { 247 popup_menu_helper_.reset( 248 new PopupMenuHelper(web_contents_->GetRenderViewHost())); 249 popup_menu_helper_->ShowPopupMenu(bounds, item_height, item_font_size, 250 selected_item, items, right_aligned, 251 allow_multiple_selection); 252 popup_menu_helper_.reset(); 253} 254 255void WebContentsViewMac::HidePopupMenu() { 256 if (popup_menu_helper_) 257 popup_menu_helper_->Hide(); 258} 259 260gfx::Rect WebContentsViewMac::GetViewBounds() const { 261 // This method is not currently used on mac. 262 NOTIMPLEMENTED(); 263 return gfx::Rect(); 264} 265 266void WebContentsViewMac::SetAllowOverlappingViews(bool overlapping) { 267 if (allow_overlapping_views_ == overlapping) 268 return; 269 270 allow_overlapping_views_ = overlapping; 271 RenderWidgetHostViewMac* view = static_cast<RenderWidgetHostViewMac*>( 272 web_contents_->GetRenderWidgetHostView()); 273 if (view) 274 view->SetAllowOverlappingViews(allow_overlapping_views_); 275} 276 277bool WebContentsViewMac::GetAllowOverlappingViews() const { 278 return allow_overlapping_views_; 279} 280 281void WebContentsViewMac::SetOverlayView( 282 WebContentsView* overlay, const gfx::Point& offset) { 283 DCHECK(!underlay_view_); 284 if (overlay_view_) 285 RemoveOverlayView(); 286 287 overlay_view_ = static_cast<WebContentsViewMac*>(overlay); 288 DCHECK(!overlay_view_->overlay_view_); 289 overlay_view_->underlay_view_ = this; 290 overlay_view_offset_ = offset; 291 UpdateRenderWidgetHostViewOverlay(); 292} 293 294void WebContentsViewMac::RemoveOverlayView() { 295 DCHECK(overlay_view_); 296 297 RenderWidgetHostViewMac* rwhv = static_cast<RenderWidgetHostViewMac*>( 298 web_contents_->GetRenderWidgetHostView()); 299 if (rwhv) 300 rwhv->RemoveOverlayView(); 301 302 overlay_view_->underlay_view_ = NULL; 303 overlay_view_ = NULL; 304} 305 306void WebContentsViewMac::UpdateRenderWidgetHostViewOverlay() { 307 RenderWidgetHostViewMac* rwhv = static_cast<RenderWidgetHostViewMac*>( 308 web_contents_->GetRenderWidgetHostView()); 309 if (!rwhv) 310 return; 311 312 if (overlay_view_) { 313 RenderWidgetHostViewMac* overlay_rwhv = 314 static_cast<RenderWidgetHostViewMac*>( 315 overlay_view_->web_contents_->GetRenderWidgetHostView()); 316 if (overlay_rwhv) 317 rwhv->SetOverlayView(overlay_rwhv, overlay_view_offset_); 318 } 319 320 if (underlay_view_) { 321 RenderWidgetHostViewMac* underlay_rwhv = 322 static_cast<RenderWidgetHostViewMac*>( 323 underlay_view_->web_contents_->GetRenderWidgetHostView()); 324 if (underlay_rwhv) 325 underlay_rwhv->SetOverlayView(rwhv, underlay_view_->overlay_view_offset_); 326 } 327} 328 329void WebContentsViewMac::CreateView( 330 const gfx::Size& initial_size, gfx::NativeView context) { 331 WebContentsViewCocoa* view = 332 [[WebContentsViewCocoa alloc] initWithWebContentsViewMac:this]; 333 cocoa_view_.reset(view); 334} 335 336RenderWidgetHostViewBase* WebContentsViewMac::CreateViewForWidget( 337 RenderWidgetHost* render_widget_host) { 338 if (render_widget_host->GetView()) { 339 // During testing, the view will already be set up in most cases to the 340 // test view, so we don't want to clobber it with a real one. To verify that 341 // this actually is happening (and somebody isn't accidentally creating the 342 // view twice), we check for the RVH Factory, which will be set when we're 343 // making special ones (which go along with the special views). 344 DCHECK(RenderViewHostFactory::has_factory()); 345 return static_cast<RenderWidgetHostViewBase*>( 346 render_widget_host->GetView()); 347 } 348 349 RenderWidgetHostViewMac* view = new RenderWidgetHostViewMac( 350 render_widget_host); 351 if (delegate()) { 352 base::scoped_nsobject<NSObject<RenderWidgetHostViewMacDelegate> > 353 rw_delegate( 354 delegate()->CreateRenderWidgetHostViewDelegate(render_widget_host)); 355 356 view->SetDelegate(rw_delegate.get()); 357 } 358 view->SetAllowOverlappingViews(allow_overlapping_views_); 359 360 // Fancy layout comes later; for now just make it our size and resize it 361 // with us. In case there are other siblings of the content area, we want 362 // to make sure the content area is on the bottom so other things draw over 363 // it. 364 NSView* view_view = view->GetNativeView(); 365 [view_view setFrame:[cocoa_view_.get() bounds]]; 366 [view_view setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable]; 367 // Add the new view below all other views; this also keeps it below any 368 // overlay view installed. 369 [cocoa_view_.get() addSubview:view_view 370 positioned:NSWindowBelow 371 relativeTo:nil]; 372 // For some reason known only to Cocoa, the autorecalculation of the key view 373 // loop set on the window doesn't set the next key view when the subview is 374 // added. On 10.6 things magically work fine; on 10.5 they fail 375 // <http://crbug.com/61493>. Digging into Cocoa key view loop code yielded 376 // madness; TODO(avi,rohit): look at this again and figure out what's really 377 // going on. 378 [cocoa_view_.get() setNextKeyView:view_view]; 379 return view; 380} 381 382RenderWidgetHostViewBase* WebContentsViewMac::CreateViewForPopupWidget( 383 RenderWidgetHost* render_widget_host) { 384 return new RenderWidgetHostViewMac(render_widget_host); 385} 386 387void WebContentsViewMac::SetPageTitle(const base::string16& title) { 388 // Meaningless on the Mac; widgets don't have a "title" attribute 389} 390 391 392void WebContentsViewMac::RenderViewCreated(RenderViewHost* host) { 393 // We want updates whenever the intrinsic width of the webpage changes. 394 // Put the RenderView into that mode. The preferred width is used for example 395 // when the "zoom" button in the browser window is clicked. 396 host->EnablePreferredSizeMode(); 397} 398 399void WebContentsViewMac::RenderViewSwappedIn(RenderViewHost* host) { 400 UpdateRenderWidgetHostViewOverlay(); 401} 402 403void WebContentsViewMac::SetOverscrollControllerEnabled(bool enabled) { 404} 405 406bool WebContentsViewMac::IsEventTracking() const { 407 return base::MessagePumpMac::IsHandlingSendEvent(); 408} 409 410// Arrange to call CloseTab() after we're back to the main event loop. 411// The obvious way to do this would be PostNonNestableTask(), but that 412// will fire when the event-tracking loop polls for events. So we 413// need to bounce the message via Cocoa, instead. 414void WebContentsViewMac::CloseTabAfterEventTracking() { 415 [cocoa_view_ cancelDeferredClose]; 416 [cocoa_view_ performSelector:@selector(closeTabAfterEvent) 417 withObject:nil 418 afterDelay:0.0]; 419} 420 421void WebContentsViewMac::CloseTab() { 422 web_contents_->Close(web_contents_->GetRenderViewHost()); 423} 424 425} // namespace content 426 427@implementation WebContentsViewCocoa 428 429- (id)initWithWebContentsViewMac:(WebContentsViewMac*)w { 430 self = [super initWithFrame:NSZeroRect]; 431 if (self != nil) { 432 webContentsView_ = w; 433 dragDest_.reset( 434 [[WebDragDest alloc] initWithWebContentsImpl:[self webContents]]); 435 [self registerDragTypes]; 436 437 [[NSNotificationCenter defaultCenter] 438 addObserver:self 439 selector:@selector(viewDidBecomeFirstResponder:) 440 name:kViewDidBecomeFirstResponder 441 object:nil]; 442 443 if (webContentsView_->delegate()) { 444 [dragDest_ setDragDelegate:webContentsView_->delegate()-> 445 GetDragDestDelegate()]; 446 } 447 } 448 return self; 449} 450 451- (void)dealloc { 452 // Cancel any deferred tab closes, just in case. 453 [self cancelDeferredClose]; 454 455 // This probably isn't strictly necessary, but can't hurt. 456 [self unregisterDraggedTypes]; 457 458 [[NSNotificationCenter defaultCenter] removeObserver:self]; 459 460 [super dealloc]; 461} 462 463// Registers for the view for the appropriate drag types. 464- (void)registerDragTypes { 465 NSArray* types = [NSArray arrayWithObjects: 466 ui::kChromeDragDummyPboardType, 467 kWebURLsWithTitlesPboardType, 468 NSURLPboardType, 469 NSStringPboardType, 470 NSHTMLPboardType, 471 NSRTFPboardType, 472 NSFilenamesPboardType, 473 ui::kWebCustomDataPboardType, 474 nil]; 475 [self registerForDraggedTypes:types]; 476} 477 478- (void)setCurrentDragOperation:(NSDragOperation)operation { 479 [dragDest_ setCurrentOperation:operation]; 480} 481 482- (DropData*)dropData { 483 return [dragDest_ currentDropData]; 484} 485 486- (WebContentsImpl*)webContents { 487 if (webContentsView_ == NULL) 488 return NULL; 489 return webContentsView_->web_contents(); 490} 491 492- (void)mouseEvent:(NSEvent*)theEvent { 493 WebContentsImpl* webContents = [self webContents]; 494 if (webContents && webContents->GetDelegate()) { 495 NSPoint location = [NSEvent mouseLocation]; 496 if ([theEvent type] == NSMouseMoved) 497 webContents->GetDelegate()->ContentsMouseEvent( 498 webContents, gfx::Point(location.x, location.y), true); 499 if ([theEvent type] == NSMouseExited) 500 webContents->GetDelegate()->ContentsMouseEvent( 501 webContents, gfx::Point(location.x, location.y), false); 502 } 503} 504 505- (void)setMouseDownCanMoveWindow:(BOOL)canMove { 506 mouseDownCanMoveWindow_ = canMove; 507} 508 509- (BOOL)mouseDownCanMoveWindow { 510 // This is needed to prevent mouseDowns from moving the window 511 // around. The default implementation returns YES only for opaque 512 // views. WebContentsViewCocoa does not draw itself in any way, but 513 // its subviews do paint their entire frames. Returning NO here 514 // saves us the effort of overriding this method in every possible 515 // subview. 516 return mouseDownCanMoveWindow_; 517} 518 519- (void)pasteboard:(NSPasteboard*)sender provideDataForType:(NSString*)type { 520 [dragSource_ lazyWriteToPasteboard:sender 521 forType:type]; 522} 523 524- (void)startDragWithDropData:(const DropData&)dropData 525 dragOperationMask:(NSDragOperation)operationMask 526 image:(NSImage*)image 527 offset:(NSPoint)offset { 528 dragSource_.reset([[WebDragSource alloc] 529 initWithContents:[self webContents] 530 view:self 531 dropData:&dropData 532 image:image 533 offset:offset 534 pasteboard:[NSPasteboard pasteboardWithName:NSDragPboard] 535 dragOperationMask:operationMask]); 536 [dragSource_ startDrag]; 537} 538 539// NSDraggingSource methods 540 541// Returns what kind of drag operations are available. This is a required 542// method for NSDraggingSource. 543- (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)isLocal { 544 if (dragSource_) 545 return [dragSource_ draggingSourceOperationMaskForLocal:isLocal]; 546 // No web drag source - this is the case for dragging a file from the 547 // downloads manager. Default to copy operation. Note: It is desirable to 548 // allow the user to either move or copy, but this requires additional 549 // plumbing to update the download item's path once its moved. 550 return NSDragOperationCopy; 551} 552 553// Called when a drag initiated in our view ends. 554- (void)draggedImage:(NSImage*)anImage 555 endedAt:(NSPoint)screenPoint 556 operation:(NSDragOperation)operation { 557 [dragSource_ endDragAt:screenPoint operation:operation]; 558 559 // Might as well throw out this object now. 560 dragSource_.reset(); 561} 562 563// Called when a drag initiated in our view moves. 564- (void)draggedImage:(NSImage*)draggedImage movedTo:(NSPoint)screenPoint { 565} 566 567// Called when a file drag is dropped and the promised files need to be written. 568- (NSArray*)namesOfPromisedFilesDroppedAtDestination:(NSURL*)dropDest { 569 if (![dropDest isFileURL]) 570 return nil; 571 572 NSString* fileName = [dragSource_ dragPromisedFileTo:[dropDest path]]; 573 if (!fileName) 574 return nil; 575 576 return @[ fileName ]; 577} 578 579// NSDraggingDestination methods 580 581- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender { 582 return [dragDest_ draggingEntered:sender view:self]; 583} 584 585- (void)draggingExited:(id<NSDraggingInfo>)sender { 586 [dragDest_ draggingExited:sender]; 587} 588 589- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)sender { 590 return [dragDest_ draggingUpdated:sender view:self]; 591} 592 593- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender { 594 return [dragDest_ performDragOperation:sender view:self]; 595} 596 597- (void)cancelDeferredClose { 598 SEL aSel = @selector(closeTabAfterEvent); 599 [NSObject cancelPreviousPerformRequestsWithTarget:self 600 selector:aSel 601 object:nil]; 602} 603 604- (void)clearWebContentsView { 605 webContentsView_ = NULL; 606 [dragSource_ clearWebContentsView]; 607} 608 609- (void)closeTabAfterEvent { 610 webContentsView_->CloseTab(); 611} 612 613- (void)viewDidBecomeFirstResponder:(NSNotification*)notification { 614 NSView* view = [notification object]; 615 if (![[self subviews] containsObject:view]) 616 return; 617 618 NSSelectionDirection direction = 619 [[[notification userInfo] objectForKey:kSelectionDirection] 620 unsignedIntegerValue]; 621 if (direction == NSDirectSelection) 622 return; 623 624 [self webContents]-> 625 FocusThroughTabTraversal(direction == NSSelectingPrevious); 626} 627 628// When the subviews require a layout, their size should be reset to the size 629// of this view. (It is possible for the size to get out of sync as an 630// optimization in preparation for an upcoming WebContentsView resize. 631// http://crbug.com/264207) 632- (void)resizeSubviewsWithOldSize:(NSSize)oldBoundsSize { 633 for (NSView* subview in self.subviews) 634 [subview setFrame:self.bounds]; 635} 636 637@end 638