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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 #ifndef CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_H_
6 #define CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_H_
7 
8 // A class acting as the Objective-C controller for the Browser
9 // object. Handles interactions between Cocoa and the cross-platform
10 // code. Each window has a single toolbar and, by virtue of being a
11 // TabWindowController, a tab strip along the top.
12 
13 #import <Cocoa/Cocoa.h>
14 
15 #include "base/mac/scoped_nsobject.h"
16 #include "base/memory/scoped_ptr.h"
17 #include "chrome/browser/translate/chrome_translate_client.h"
18 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
19 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bubble_controller.h"
20 #import "chrome/browser/ui/cocoa/browser_command_executor.h"
21 #import "chrome/browser/ui/cocoa/fullscreen_exit_bubble_controller.h"
22 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
23 #import "chrome/browser/ui/cocoa/tabs/tab_window_controller.h"
24 #import "chrome/browser/ui/cocoa/themed_window.h"
25 #import "chrome/browser/ui/cocoa/url_drop_target.h"
26 #import "chrome/browser/ui/cocoa/view_resizer.h"
27 #include "components/translate/core/common/translate_errors.h"
28 #include "ui/base/accelerators/accelerator_manager.h"
29 #include "ui/gfx/rect.h"
30 
31 @class AvatarBaseController;
32 class Browser;
33 class BrowserWindow;
34 class BrowserWindowCocoa;
35 @class DevToolsController;
36 @class DownloadShelfController;
37 class ExtensionKeybindingRegistryCocoa;
38 @class FindBarCocoaController;
39 @class FullscreenModeController;
40 @class FullscreenWindow;
41 @class InfoBarContainerController;
42 class LocationBarViewMac;
43 @class OverlayableContentsController;
44 class PermissionBubbleCocoa;
45 @class PresentationModeController;
46 class StatusBubbleMac;
47 @class TabStripController;
48 @class TabStripView;
49 @class ToolbarController;
50 @class TranslateBubbleController;
51 
52 namespace content {
53 class WebContents;
54 }
55 
56 namespace extensions {
57 class Command;
58 }
59 
60 @interface BrowserWindowController :
61   TabWindowController<NSUserInterfaceValidations,
62                       BookmarkBarControllerDelegate,
63                       BrowserCommandExecutor,
64                       ViewResizer,
65                       TabStripControllerDelegate> {
66  @private
67   // The ordering of these members is important as it determines the order in
68   // which they are destroyed. |browser_| needs to be destroyed last as most of
69   // the other objects hold weak references to it or things it owns
70   // (tab/toolbar/bookmark models, profiles, etc).
71   scoped_ptr<Browser> browser_;
72   NSWindow* savedRegularWindow_;
73   scoped_ptr<BrowserWindowCocoa> windowShim_;
74   base::scoped_nsobject<ToolbarController> toolbarController_;
75   base::scoped_nsobject<TabStripController> tabStripController_;
76   base::scoped_nsobject<FindBarCocoaController> findBarCocoaController_;
77   base::scoped_nsobject<InfoBarContainerController> infoBarContainerController_;
78   base::scoped_nsobject<DownloadShelfController> downloadShelfController_;
79   base::scoped_nsobject<BookmarkBarController> bookmarkBarController_;
80   base::scoped_nsobject<DevToolsController> devToolsController_;
81   base::scoped_nsobject<OverlayableContentsController>
82       overlayableContentsController_;
83   base::scoped_nsobject<PresentationModeController> presentationModeController_;
84   base::scoped_nsobject<FullscreenExitBubbleController>
85       fullscreenExitBubbleController_;
86 
87   // Strong. StatusBubble is a special case of a strong reference that
88   // we don't wrap in a scoped_ptr because it is acting the same
89   // as an NSWindowController in that it wraps a window that must
90   // be shut down before our destructors are called.
91   StatusBubbleMac* statusBubble_;
92 
93   BookmarkBubbleController* bookmarkBubbleController_;  // Weak.
94   BOOL initializing_;  // YES while we are currently in initWithBrowser:
95   BOOL ownsBrowser_;  // Only ever NO when testing
96 
97   TranslateBubbleController* translateBubbleController_;  // Weak.
98 
99   // The total amount by which we've grown the window up or down (to display a
100   // bookmark bar and/or download shelf), respectively; reset to 0 when moved
101   // away from the bottom/top or resized (or zoomed).
102   CGFloat windowTopGrowth_;
103   CGFloat windowBottomGrowth_;
104 
105   // YES only if we're shrinking the window from an apparent zoomed state (which
106   // we'll only do if we grew it to the zoomed state); needed since we'll then
107   // restrict the amount of shrinking by the amounts specified above. Reset to
108   // NO on growth.
109   BOOL isShrinkingFromZoomed_;
110 
111   // The view controller that manages the incognito badge or the multi-profile
112   // avatar button. Depending on whether the --new-profile-management flag is
113   // used, the multi-profile button can either be the avatar's icon badge or a
114   // button with the profile's name. If the flag is used, the button is always
115   // shown, otherwise the view will always be in the view hierarchy but will
116   // be hidden unless it's appropriate to show it (i.e. if there's more than
117   // one profile).
118   base::scoped_nsobject<AvatarBaseController> avatarButtonController_;
119 
120   // Lazily created view which draws the background for the floating set of bars
121   // in presentation mode (for window types having a floating bar; it remains
122   // nil for those which don't).
123   base::scoped_nsobject<NSView> floatingBarBackingView_;
124 
125   // The borderless window used in fullscreen mode when Cocoa's System
126   // Fullscreen API is not being used (or not available, before OS 10.7).
127   base::scoped_nsobject<NSWindow> fullscreenWindow_;
128 
129   // The Cocoa implementation of the PermissionBubbleView.
130   scoped_ptr<PermissionBubbleCocoa> permissionBubbleCocoa_;
131 
132   // True between |-windowWillEnterFullScreen:| and |-windowDidEnterFullScreen:|
133   // to indicate that the window is in the process of transitioning into
134   // AppKit fullscreen mode.
135   BOOL enteringAppKitFullscreen_;
136 
137   // Only adjust the tab strip once while entering fullscreen. See the
138   // implementation of -[BrowserWindowController updateSubviewZOrder:] for more
139   // details.
140   BOOL hasAdjustedTabStripWhileEnteringAppKitFullscreen_;
141 
142   // True between |enterImmersiveFullscreen| and |-windowDidEnterFullScreen:|
143   // to indicate that the window is in the process of transitioning into
144   // AppKit fullscreen mode.
145   BOOL enteringImmersiveFullscreen_;
146 
147   // True between |-setPresentationMode:url:bubbleType:| and
148   // |-windowDidEnterFullScreen:| to indicate that the window is in the process
149   // of transitioning into fullscreen presentation mode.
150   BOOL enteringPresentationMode_;
151 
152   // The size of the original (non-fullscreen) window.  This is saved just
153   // before entering fullscreen mode and is only valid when |-isFullscreen|
154   // returns YES.
155   NSRect savedRegularWindowFrame_;
156 
157   // The proportion of the floating bar which is shown (in presentation mode).
158   CGFloat floatingBarShownFraction_;
159 
160   // Various UI elements/events may want to ensure that the floating bar is
161   // visible (in presentation mode), e.g., because of where the mouse is or
162   // where keyboard focus is. Whenever an object requires bar visibility, it has
163   // itself added to |barVisibilityLocks_|. When it no longer requires bar
164   // visibility, it has itself removed.
165   base::scoped_nsobject<NSMutableSet> barVisibilityLocks_;
166 
167   // Bar visibility locks and releases only result (when appropriate) in changes
168   // in visible state when the following is |YES|.
169   BOOL barVisibilityUpdatesEnabled_;
170 
171   // When going fullscreen for a tab, we need to store the URL and the
172   // fullscreen type, since we can't show the bubble until
173   // -windowDidEnterFullScreen: gets called.
174   GURL fullscreenUrl_;
175   FullscreenExitBubbleType fullscreenBubbleType_;
176 
177   // The Extension Command Registry used to determine which keyboard events to
178   // handle.
179   scoped_ptr<ExtensionKeybindingRegistryCocoa> extension_keybinding_registry_;
180 
181   // Whether the root view of the window is layer backed.
182   BOOL windowViewWantsLayer_;
183 }
184 
185 // A convenience class method which gets the |BrowserWindowController| for a
186 // given window. This method returns nil if no window in the chain has a BWC.
187 + (BrowserWindowController*)browserWindowControllerForWindow:(NSWindow*)window;
188 
189 // A convenience class method which gets the |BrowserWindowController| for a
190 // given view.  This is the controller for the window containing |view|, if it
191 // is a BWC, or the first controller in the parent-window chain that is a
192 // BWC. This method returns nil if no window in the chain has a BWC.
193 + (BrowserWindowController*)browserWindowControllerForView:(NSView*)view;
194 
195 // Helper method used to update the "Signin" menu item to reflect the current
196 // signed in state. Class-level function as it's still required even when there
197 // are no open browser windows.
198 + (void)updateSigninItem:(id)signinItem
199               shouldShow:(BOOL)showSigninMenuItem
200           currentProfile:(Profile*)profile;
201 
202 // Load the browser window nib and do any Cocoa-specific initialization.
203 // Takes ownership of |browser|.
204 - (id)initWithBrowser:(Browser*)browser;
205 
206 // Call to make the browser go away from other places in the cross-platform
207 // code.
208 - (void)destroyBrowser;
209 
210 // Ensure bounds for the window abide by the minimum window size.
211 - (gfx::Rect)enforceMinWindowSize:(gfx::Rect)bounds;
212 
213 // Access the C++ bridge between the NSWindow and the rest of Chromium.
214 - (BrowserWindow*)browserWindow;
215 
216 // Return a weak pointer to the toolbar controller.
217 - (ToolbarController*)toolbarController;
218 
219 // Return a weak pointer to the tab strip controller.
220 - (TabStripController*)tabStripController;
221 
222 // Return a weak pointer to the find bar controller.
223 - (FindBarCocoaController*)findBarCocoaController;
224 
225 // Access the ObjC controller that contains the infobars.
226 - (InfoBarContainerController*)infoBarContainerController;
227 
228 // Access the C++ bridge object representing the status bubble for the window.
229 - (StatusBubbleMac*)statusBubble;
230 
231 // Access the C++ bridge object representing the location bar.
232 - (LocationBarViewMac*)locationBarBridge;
233 
234 // Returns a weak pointer to the floating bar backing view;
235 - (NSView*)floatingBarBackingView;
236 
237 // Returns a weak pointer to the overlayable contents controller.
238 - (OverlayableContentsController*)overlayableContentsController;
239 
240 // Access the Profile object that backs this Browser.
241 - (Profile*)profile;
242 
243 // Access the avatar button controller.
244 - (AvatarBaseController*)avatarButtonController;
245 
246 // Forces the toolbar (and transitively the location bar) to update its current
247 // state.  If |tab| is non-NULL, we're switching (back?) to this tab and should
248 // restore any previous location bar state (such as user editing) as well.
249 - (void)updateToolbarWithContents:(content::WebContents*)tab;
250 
251 // Sets whether or not the current page in the frontmost tab is bookmarked.
252 - (void)setStarredState:(BOOL)isStarred;
253 
254 // Sets whether or not the current page is translated.
255 - (void)setCurrentPageIsTranslated:(BOOL)on;
256 
257 // Happens when the zoom level is changed in the active tab, the active tab is
258 // changed, or a new browser window or tab is created. |canShowBubble| denotes
259 // whether it would be appropriate to show a zoom bubble or not.
260 - (void)zoomChangedForActiveTab:(BOOL)canShowBubble;
261 
262 // Return the rect, in WebKit coordinates (flipped), of the window's grow box
263 // in the coordinate system of the content area of the currently selected tab.
264 - (NSRect)selectedTabGrowBoxRect;
265 
266 // Called to tell the selected tab to update its loading state.
267 // |force| is set if the update is due to changing tabs, as opposed to
268 // the page-load finishing.  See comment in reload_button.h.
269 - (void)setIsLoading:(BOOL)isLoading force:(BOOL)force;
270 
271 // Brings this controller's window to the front.
272 - (void)activate;
273 
274 // Make the location bar the first responder, if possible.
275 - (void)focusLocationBar:(BOOL)selectAll;
276 
277 // Make the (currently-selected) tab contents the first responder, if possible.
278 - (void)focusTabContents;
279 
280 // Returns the frame of the regular (non-fullscreened) window (even if the
281 // window is currently in fullscreen mode).  The frame is returned in Cocoa
282 // coordinates (origin in bottom-left).
283 - (NSRect)regularWindowFrame;
284 
285 // Whether or not to show the avatar, which is either the incognito guy or the
286 // user's profile avatar.
287 - (BOOL)shouldShowAvatar;
288 
289 // Whether or not to show the new avatar button used by --new-profile-maagement.
290 - (BOOL)shouldUseNewAvatarButton;
291 
292 - (BOOL)isBookmarkBarVisible;
293 
294 // Returns YES if the bookmark bar is currently animating.
295 - (BOOL)isBookmarkBarAnimating;
296 
297 - (BookmarkBarController*)bookmarkBarController;
298 
299 - (DevToolsController*)devToolsController;
300 
301 - (BOOL)isDownloadShelfVisible;
302 
303 // Lazily creates the download shelf in visible state if it doesn't exist yet.
304 - (void)createAndAddDownloadShelf;
305 
306 // Returns the download shelf controller, if it exists.
307 - (DownloadShelfController*)downloadShelf;
308 
309 // Retains the given FindBarCocoaController and adds its view to this
310 // browser window.  Must only be called once per
311 // BrowserWindowController.
312 - (void)addFindBar:(FindBarCocoaController*)findBarCocoaController;
313 
314 // The user changed the theme.
315 - (void)userChangedTheme;
316 
317 // Executes the command in the context of the current browser.
318 // |command| is an integer value containing one of the constants defined in the
319 // "chrome/app/chrome_command_ids.h" file.
320 - (void)executeCommand:(int)command;
321 
322 // Consults the Command Registry to see if this |event| needs to be handled as
323 // an extension command and returns YES if so (NO otherwise).
324 // Only extensions with the given |priority| are considered.
325 - (BOOL)handledByExtensionCommand:(NSEvent*)event
326     priority:(ui::AcceleratorManager::HandlerPriority)priority;
327 
328 // Delegate method for the status bubble to query its base frame.
329 - (NSRect)statusBubbleBaseFrame;
330 
331 // Show the bookmark bubble (e.g. user just clicked on the STAR)
332 - (void)showBookmarkBubbleForURL:(const GURL&)url
333                alreadyBookmarked:(BOOL)alreadyBookmarked;
334 
335 // Show the translate bubble.
336 - (void)showTranslateBubbleForWebContents:(content::WebContents*)contents
337                                      step:(translate::TranslateStep)step
338                                 errorType:
339                                     (translate::TranslateErrors::Type)errorType;
340 
341 // Shows or hides the docked web inspector depending on |contents|'s state.
342 - (void)updateDevToolsForContents:(content::WebContents*)contents;
343 
344 // Gets the current theme provider.
345 - (ui::ThemeProvider*)themeProvider;
346 
347 // Gets the window style.
348 - (ThemedWindowStyle)themedWindowStyle;
349 
350 // Returns the position in the coordinates of the root view
351 // ([[self contentView] superview]) that the top left of a theme image with
352 // |alignment| should be painted at. If the window does not have a tab strip,
353 // the offset for THEME_IMAGE_ALIGN_WITH_FRAME is always returned. The result of
354 // this method can be used in conjunction with
355 // [NSGraphicsContext cr_setPatternPhase:] to set the offset of pattern colors.
356 - (NSPoint)themeImagePositionForAlignment:(ThemeImageAlignment)alignment;
357 
358 // Return the point to which a bubble window's arrow should point, in window
359 // coordinates.
360 - (NSPoint)bookmarkBubblePoint;
361 
362 // Called when the Add Search Engine dialog is closed.
363 - (void)sheetDidEnd:(NSWindow*)sheet
364          returnCode:(NSInteger)code
365             context:(void*)context;
366 
367 // Executes the command registered by the extension that has the given id.
368 - (void)executeExtensionCommand:(const std::string&)extension_id
369                         command:(const extensions::Command&)command;
370 
371 @end  // @interface BrowserWindowController
372 
373 
374 // Methods having to do with the window type (normal/popup/app, and whether the
375 // window has various features; fullscreen and presentation mode methods are
376 // separate).
377 @interface BrowserWindowController(WindowType)
378 
379 // Determines whether this controller's window supports a given feature (i.e.,
380 // whether a given feature is or can be shown in the window).
381 // TODO(viettrungluu): |feature| is really should be |Browser::Feature|, but I
382 // don't want to include browser.h (and you can't forward declare enums).
383 - (BOOL)supportsWindowFeature:(int)feature;
384 
385 // Called to check whether or not this window has a normal title bar (YES if it
386 // does, NO otherwise). (E.g., normal browser windows do not, pop-ups do.)
387 - (BOOL)hasTitleBar;
388 
389 // Called to check whether or not this window has a toolbar (YES if it does, NO
390 // otherwise). (E.g., normal browser windows do, pop-ups do not.)
391 - (BOOL)hasToolbar;
392 
393 // Called to check whether or not this window has a location bar (YES if it
394 // does, NO otherwise). (E.g., normal browser windows do, pop-ups may or may
395 // not.)
396 - (BOOL)hasLocationBar;
397 
398 // Called to check whether or not this window can have bookmark bar (YES if it
399 // does, NO otherwise). (E.g., normal browser windows may, pop-ups may not.)
400 - (BOOL)supportsBookmarkBar;
401 
402 // Called to check if this controller's window is a tabbed window (e.g., not a
403 // pop-up window). Returns YES if it is, NO otherwise.
404 // Note: The |-has...| methods are usually preferred, so this method is largely
405 // deprecated.
406 - (BOOL)isTabbedWindow;
407 
408 @end  // @interface BrowserWindowController(WindowType)
409 
410 // Fullscreen terminology:
411 //
412 // ----------------------------------------------------------------------------
413 // There are 2 APIs that cause the window to get resized, and possibly move
414 // spaces.
415 //
416 // + AppKitFullscreen API: AppKit touts a feature known as "fullscreen". This
417 // involves moving the current window to a different space, and resizing the
418 // window to take up the entire size of the screen.
419 //
420 // + Immersive fullscreen: An alternative to AppKitFullscreen API. Uses on 10.6
421 // (before AppKitFullscreen API was available), and on certain HTML/Flash
422 // content. This is a method defined by Chrome.
423 //
424 // The Immersive fullscreen API can be called after the AppKitFullscreen API.
425 // Calling the AppKitFullscreen API while immersive fullscreen API has been
426 // invoked causes all fullscreen modes to exit.
427 //
428 // ----------------------------------------------------------------------------
429 // There are 2 "styles" of omnibox sliding.
430 // + OMNIBOX_TABS_PRESENT: Both the omnibox and the tabstrip are present.
431 // Moving the cursor to the top causes the menubar to appear, and everything
432 // else to slide down.
433 // + OMNIBOX_TABS_HIDDEN: Both tabstrip and omnibox are hidden. Moving cursor
434 // to top shows tabstrip, omnibox, and menu bar.
435 //
436 // The omnibox sliding styles are used in conjunction with the fullscreen APIs.
437 // There is exactly 1 sliding style active at a time. The sliding is mangaged
438 // by the presentationModeController_. (poorly named).
439 //
440 // ----------------------------------------------------------------------------
441 // There are several "fullscreen modes" bantered around. Technically, any
442 // fullscreen API can be combined with any sliding style.
443 //
444 // + System fullscreen***deprecated***: This term is confusing. Don't use it.
445 // It either refers to the AppKitFullscreen API, or the behavior that users
446 // expect to see when they click the fullscreen button, or some Chrome specific
447 // implementation that uses the AppKitFullscreen API.
448 //
449 // + Canonical Fullscreen: When a user clicks on the fullscreen button, they
450 // expect a fullscreen behavior similar to other AppKit apps.
451 //  - AppKitFullscreen API + OMNIBOX_TABS_PRESENT.
452 //  - The button click directly invokes the AppKitFullscreen API. This class
453 //  get a callback, and calls adjustUIForOmniboxFullscreen.
454 //  - There is a menu item that is intended to invoke the same behavior. When
455 //  the user clicks the menu item, or use its hotkey, this class invokes the
456 //  AppKitFullscreen API.
457 //
458 // + Presentation Mode:
459 //  - OMNIBOX_TABS_HIDDEN, typically with AppKitFullscreen API, but can
460 //  also be with Immersive fullscreen API.
461 //  - This class sets a flag, indicating that it wants Presentation Mode
462 //  instead of Canonical Fullscreen. Then it invokes the AppKitFullscreen API.
463 //
464 // + HTML5 fullscreen. <-- Currently uses AppKitFullscreen API. This should
465 // eventually migrate to the Immersive Fullscreen API.
466 //
467 // There are more fullscreen styles on OSX than other OSes. However, all OSes
468 // share the same cross-platform code for entering fullscreen
469 // (FullscreenController). It is important for OSX fullscreen logic to track
470 // how the user triggered fullscreen mode.
471 // There are currently 5 possible mechanisms:
472 //   - User clicks the AppKit Fullscreen button.
473 //     -- This invokes -[BrowserWindowController windowWillEnterFullscreen:]
474 //   - User selects the menu item "Enter Full Screen".
475 //     -- This invokes FullscreenController::ToggleFullscreenModeInternal(
476 //        BROWSER_WITH_CHROME)
477 //   - User selects the menu item "Enter Presentation Mode".
478 //     -- This invokes FullscreenController::ToggleFullscreenModeInternal(
479 //        BROWSER)
480 //     -- The corresponding URL will be empty.
481 //   - User requests fullscreen via an extension.
482 //     -- This invokes FullscreenController::ToggleFullscreenModeInternal(
483 //        BROWSER)
484 //     -- The corresponding URL will be the url of the extension.
485 //   - User requests fullscreen via Flash or JavaScript apis.
486 //     -- This invokes FullscreenController::ToggleFullscreenModeInternal(
487 //        BROWSER)
488 //     -- browser_->fullscreen_controller()->
489 //        IsWindowFullscreenForTabOrPending() returns true.
490 //     -- The corresponding URL will be the url of the web page.
491 
492 // Methods having to do with fullscreen and presentation mode.
493 @interface BrowserWindowController(Fullscreen)
494 
495 // Toggles fullscreen mode.  Meant to be called by Lion windows when they enter
496 // or exit Lion fullscreen mode.  Must not be called on Snow Leopard or earlier.
497 - (void)handleLionToggleFullscreen;
498 
499 // Enters Canonical Fullscreen.
500 - (void)enterFullscreenWithChrome;
501 
502 // Updates the contents of the fullscreen exit bubble with |url| and
503 // |bubbleType|.
504 - (void)updateFullscreenExitBubbleURL:(const GURL&)url
505                            bubbleType:(FullscreenExitBubbleType)bubbleType;
506 
507 // Returns YES if the browser window is in or entering any fullscreen mode.
508 - (BOOL)isInAnyFullscreenMode;
509 
510 // Returns YES if the browser window is currently in or entering fullscreen via
511 // the built-in immersive mechanism.
512 - (BOOL)isInImmersiveFullscreen;
513 
514 // Returns YES if the browser window is currently in or entering fullscreen via
515 // the AppKit Fullscreen API.
516 - (BOOL)isInAppKitFullscreen;
517 
518 // Enters presentation mode.
519 - (void)enterPresentationMode;
520 
521 // Enter fullscreen for an extension.
522 - (void)enterExtensionFullscreenForURL:(const GURL&)url
523                             bubbleType:(FullscreenExitBubbleType)bubbleType;
524 
525 // Enters Immersive Fullscreen for the given URL.
526 - (void)enterWebContentFullscreenForURL:(const GURL&)url
527                              bubbleType:(FullscreenExitBubbleType)bubbleType;
528 
529 // Exits the current fullscreen mode.
530 - (void)exitAnyFullscreen;
531 
532 // Whether the system is in the very specific fullscreen mode: Presentation
533 // Mode.
534 - (BOOL)inPresentationMode;
535 
536 // Resizes the fullscreen window to fit the screen it's currently on.  Called by
537 // the PresentationModeController when there is a change in monitor placement or
538 // resolution.
539 - (void)resizeFullscreenWindow;
540 
541 // Query/lock/release the requirement that the tab strip/toolbar/attached
542 // bookmark bar bar cluster is visible (e.g., when one of its elements has
543 // focus). This is required for the floating bar in presentation mode, but
544 // should also be called when not in presentation mode; see the comments for
545 // |barVisibilityLocks_| for more details. Double locks/releases by the same
546 // owner are ignored. If |animate:| is YES, then an animation may be performed,
547 // possibly after a small delay if |delay:| is YES. If |animate:| is NO,
548 // |delay:| will be ignored. In the case of multiple calls, later calls have
549 // precedence with the rule that |animate:NO| has precedence over |animate:YES|,
550 // and |delay:NO| has precedence over |delay:YES|.
551 - (BOOL)isBarVisibilityLockedForOwner:(id)owner;
552 - (void)lockBarVisibilityForOwner:(id)owner
553                     withAnimation:(BOOL)animate
554                             delay:(BOOL)delay;
555 - (void)releaseBarVisibilityForOwner:(id)owner
556                        withAnimation:(BOOL)animate
557                                delay:(BOOL)delay;
558 
559 // Returns YES if any of the views in the floating bar currently has focus.
560 - (BOOL)floatingBarHasFocus;
561 
562 @end  // @interface BrowserWindowController(Fullscreen)
563 
564 
565 // Methods which are either only for testing, or only public for testing.
566 @interface BrowserWindowController (TestingAPI)
567 
568 // Put the incognito badge or multi-profile avatar on the browser and adjust the
569 // tab strip accordingly.
570 - (void)installAvatar;
571 
572 // Allows us to initWithBrowser withOUT taking ownership of the browser.
573 - (id)initWithBrowser:(Browser*)browser takeOwnership:(BOOL)ownIt;
574 
575 // Adjusts the window height by the given amount.  If the window spans from the
576 // top of the current workspace to the bottom of the current workspace, the
577 // height is not adjusted.  If growing the window by the requested amount would
578 // size the window to be taller than the current workspace, the window height is
579 // capped to be equal to the height of the current workspace.  If the window is
580 // partially offscreen, its height is not adjusted at all.  This function
581 // prefers to grow the window down, but will grow up if needed.  Calls to this
582 // function should be followed by a call to |layoutSubviews|.
583 // Returns if the window height was changed.
584 - (BOOL)adjustWindowHeightBy:(CGFloat)deltaH;
585 
586 // Return an autoreleased NSWindow suitable for fullscreen use.
587 - (NSWindow*)createFullscreenWindow;
588 
589 // Resets any saved state about window growth (due to showing the bookmark bar
590 // or the download shelf), so that future shrinking will occur from the bottom.
591 - (void)resetWindowGrowthState;
592 
593 // Computes by how far in each direction, horizontal and vertical, the
594 // |source| rect doesn't fit into |target|.
595 - (NSSize)overflowFrom:(NSRect)source
596                     to:(NSRect)target;
597 
598 // The fullscreen exit bubble controller, or nil if the bubble isn't showing.
599 - (FullscreenExitBubbleController*)fullscreenExitBubbleController;
600 
601 // Gets the rect, in window base coordinates, that the omnibox popup should be
602 // positioned relative to.
603 - (NSRect)omniboxPopupAnchorRect;
604 
605 // Force a layout of info bars.
606 - (void)layoutInfoBars;
607 
608 @end  // @interface BrowserWindowController (TestingAPI)
609 
610 
611 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_H_
612