blob: 19696f497809f737dfca0fdd68e824cdf5ffe219 [file] [log] [blame]
// Copyright 2012 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/ui/cocoa/browser_window_controller.h"
#include <cmath>
#include <numeric>
#include <utility>
#include "base/command_line.h"
#include "base/mac/bundle_locations.h"
#import "base/mac/foundation_util.h"
#include "base/mac/mac_util.h"
#import "base/mac/sdk_forward_declarations.h"
#include "base/strings/sys_string_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "build/buildflag.h"
#include "chrome/app/chrome_command_ids.h" // IDC_*
#include "chrome/browser/bookmarks/bookmark_model_factory.h"
#include "chrome/browser/bookmarks/managed_bookmark_service_factory.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/devtools/devtools_window.h"
#include "chrome/browser/extensions/extension_commands_global_registry.h"
#include "chrome/browser/lifetime/browser_shutdown.h"
#include "chrome/browser/permissions/permission_request_manager.h"
#include "chrome/browser/profiles/avatar_menu.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_attributes_storage.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/profiles/profiles_state.h"
#include "chrome/browser/themes/theme_service.h"
#include "chrome/browser/themes/theme_service_factory.h"
#include "chrome/browser/translate/chrome_translate_client.h"
#include "chrome/browser/ui/bookmarks/bookmark_editor.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_command_controller.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_instant_controller.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_window_state.h"
#import "chrome/browser/ui/cocoa/background_gradient_view.h"
#import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
#import "chrome/browser/ui/cocoa/bookmarks/bookmark_bubble_observer_cocoa.h"
#import "chrome/browser/ui/cocoa/bookmarks/bookmark_editor_controller.h"
#import "chrome/browser/ui/cocoa/browser/exclusive_access_controller_views.h"
#include "chrome/browser/ui/cocoa/browser_dialogs_views_mac.h"
#import "chrome/browser/ui/cocoa/browser_window_cocoa.h"
#import "chrome/browser/ui/cocoa/browser_window_command_handler.h"
#import "chrome/browser/ui/cocoa/browser_window_controller_private.h"
#import "chrome/browser/ui/cocoa/browser_window_layout.h"
#import "chrome/browser/ui/cocoa/browser_window_utils.h"
#import "chrome/browser/ui/cocoa/dev_tools_controller.h"
#import "chrome/browser/ui/cocoa/download/download_shelf_controller.h"
#include "chrome/browser/ui/cocoa/extensions/extension_keybinding_registry_cocoa.h"
#import "chrome/browser/ui/cocoa/fast_resize_view.h"
#import "chrome/browser/ui/cocoa/find_bar/find_bar_bridge.h"
#import "chrome/browser/ui/cocoa/find_bar/find_bar_cocoa_controller.h"
#import "chrome/browser/ui/cocoa/framed_browser_window.h"
#import "chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_controller.h"
#import "chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_visibility_lock_controller.h"
#include "chrome/browser/ui/cocoa/fullscreen_placeholder_view.h"
#import "chrome/browser/ui/cocoa/fullscreen_window.h"
#import "chrome/browser/ui/cocoa/infobars/infobar_container_controller.h"
#include "chrome/browser/ui/cocoa/l10n_util.h"
#import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.h"
#import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
#import "chrome/browser/ui/cocoa/location_bar/star_decoration.h"
#import "chrome/browser/ui/cocoa/profiles/avatar_base_controller.h"
#import "chrome/browser/ui/cocoa/profiles/avatar_button_controller.h"
#import "chrome/browser/ui/cocoa/profiles/avatar_icon_controller.h"
#import "chrome/browser/ui/cocoa/status_bubble_mac.h"
#import "chrome/browser/ui/cocoa/tab_contents/overlayable_contents_controller.h"
#import "chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.h"
#import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
#import "chrome/browser/ui/cocoa/tabs/tab_strip_view.h"
#import "chrome/browser/ui/cocoa/tabs/tab_view.h"
#import "chrome/browser/ui/cocoa/toolbar/app_toolbar_button.h"
#import "chrome/browser/ui/cocoa/toolbar/toolbar_controller.h"
#import "chrome/browser/ui/cocoa/touchbar/browser_window_touch_bar_controller.h"
#include "chrome/browser/ui/cocoa/translate/translate_bubble_bridge_views.h"
#import "chrome/browser/ui/cocoa/translate/translate_bubble_controller.h"
#include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
#include "chrome/browser/ui/location_bar/location_bar.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/tabs/tab_strip_model_delegate.h"
#include "chrome/browser/ui/translate/translate_bubble_model_impl.h"
#include "chrome/browser/ui/window_sizer/window_sizer.h"
#include "chrome/common/chrome_features.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/extensions/command.h"
#include "chrome/common/pref_names.h"
#include "components/bookmarks/browser/bookmark_model.h"
#include "components/bookmarks/managed/managed_bookmark_service.h"
#include "components/omnibox/browser/omnibox_edit_model.h"
#include "components/omnibox/browser/omnibox_popup_model.h"
#include "components/signin/core/browser/profile_management_switches.h"
#include "components/translate/core/browser/translate_manager.h"
#include "components/translate/core/browser/translate_ui_delegate.h"
#include "components/web_modal/web_contents_modal_dialog_manager.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/web_contents.h"
#import "ui/base/cocoa/cocoa_base_utils.h"
#import "ui/base/cocoa/nsview_additions.h"
#import "ui/base/cocoa/touch_bar_forward_declarations.h"
#include "ui/base/ui_features.h"
#include "ui/display/screen.h"
#import "ui/gfx/mac/coordinate_conversion.h"
#include "ui/gfx/mac/scoped_cocoa_disable_screen_updates.h"
#include "ui/gfx/scrollbar_size.h"
using bookmarks::BookmarkModel;
using bookmarks::BookmarkNode;
// ORGANIZATION: This is a big file. It is (in principle) organized as follows
// (in order):
// 1. Interfaces. Very short, one-time-use classes may include an implementation
// immediately after their interface.
// 2. The general implementation section, ordered as follows:
// i. Public methods and overrides.
// ii. Overrides/implementations of undocumented methods.
// iii. Delegate methods for various protocols, formal and informal, to which
// |BrowserWindowController| conforms.
// 3. (temporary) Implementation sections for various categories.
// Private methods are defined and implemented separately in
// browser_window_controller_private.{h,mm}.
// Not all of the above guidelines are followed and more (re-)organization is
// needed. BUT PLEASE TRY TO KEEP THIS FILE ORGANIZED. I'd rather re-organize as
// little as possible, since doing so messes up the file's history.
// TODO(viettrungluu): [] on-going re-organization, splitting
// things into multiple files -- the plan is as follows:
// - in general, everything stays in browser_window_controller.h, but is split
// off into categories (see below)
// - core stuff stays in
// - ... overrides also stay (without going into a category, in particular)
// - private stuff which everyone needs goes into
// browser_window_controller_private.{h,mm}; if no one else needs them, they
// can go in individual files (see below)
// - area/task-specific stuff go in browser_window_controller_<area>.mm
// - ... in categories called "(<Area>)" or "(<PrivateArea>)"
// Plan of action:
// - first re-organize into categories
// - then split into files
// Notes on self-inflicted (not user-inflicted) window resizing and moving:
// When the bookmark bar goes from hidden to shown (on a non-NTP) page, or when
// the download shelf goes from hidden to shown, we grow the window downwards in
// order to maintain a constant content area size. When either goes from shown
// to hidden, we consequently shrink the window from the bottom, also to keep
// the content area size constant. To keep things simple, if the window is not
// entirely on-screen, we don't grow/shrink the window.
// The complications come in when there isn't enough room (on screen) below the
// window to accomodate the growth. In this case, we grow the window first
// downwards, and then upwards. So, when it comes to shrinking, we do the
// opposite: shrink from the top by the amount by which we grew at the top, and
// then from the bottom -- unless the user moved/resized/zoomed the window, in
// which case we "reset state" and just shrink from the bottom.
// A further complication arises due to the way in which "zoom" ("maximize")
// works on Mac OS X. Basically, for our purposes, a window is "zoomed" whenever
// it occupies the full available vertical space. (Note that the green zoom
// button does not track zoom/unzoomed state per se, but basically relies on
// this heuristic.) We don't, in general, want to shrink the window if the
// window is zoomed (scenario: window is zoomed, download shelf opens -- which
// doesn't cause window growth, download shelf closes -- shouldn't cause the
// window to become unzoomed!). However, if we grew the window
// (upwards/downwards) to become zoomed in the first place, we *should* shrink
// the window by the amounts by which we grew (scenario: window occupies *most*
// of vertical space, download shelf opens causing growth so that window
// occupies all of vertical space -- i.e., window is effectively zoomed,
// download shelf closes -- should return the window to its previous state).
// A major complication is caused by the way grows/shrinks are handled and
// animated. Basically, the BWC doesn't see the global picture, but it sees
// grows and shrinks in small increments (as dictated by the animation). Thus
// window growth/shrinkage (at the top/bottom) have to be tracked incrementally.
// Allowing shrinking from the zoomed state also requires tracking: We check on
// any shrink whether we're both zoomed and have previously grown -- if so, we
// set a flag, and constrain any resize by the allowed amounts. On further
// shrinks, we check the flag (since the size/position of the window will no
// longer indicate that the window is shrinking from an apparent zoomed state)
// and if it's set we continue to constrain the resize.
using content::RenderWidgetHostView;
using content::WebContents;
namespace {
// Make |window| able to handle Browser commands.
void SetUpBrowserWindowCommandHandler(NSWindow* window) {
setCommandHandler:[[[BrowserWindowCommandHandler alloc] init]
// Decouples the command dispatcher associated with |window| from Browser
// command handling. This prevents handlers with a reference to |window|
// attempting to look up a Browser* for it.
void ClearCommandHandler(NSWindow* window) {
// Returns true if the Tab Detaching in Fullscreen is enabled. It's enabled by
// default.
bool IsTabDetachingInFullscreenEnabled() {
return !base::CommandLine::ForCurrentProcess()->HasSwitch(
} // namespace
@implementation BrowserWindowController
+ (BrowserWindowController*)browserWindowControllerForWindow:(NSWindow*)window {
return base::mac::ObjCCast<BrowserWindowController>(
[TabWindowController tabWindowControllerForWindow:window]);
+ (BrowserWindowController*)browserWindowControllerForView:(NSView*)view {
NSWindow* window = [view window];
return [BrowserWindowController browserWindowControllerForWindow:window];
// Load the browser window nib and do any Cocoa-specific initialization.
// Takes ownership of |browser|. Note that the nib also sets this controller
// up as the window's delegate.
- (id)initWithBrowser:(Browser*)browser {
return [self initWithBrowser:browser takeOwnership:YES];
// Private(TestingAPI) init routine with testing options.
- (id)initWithBrowser:(Browser*)browser takeOwnership:(BOOL)ownIt {
bool hasTabStrip = browser->SupportsWindowFeature(Browser::FEATURE_TABSTRIP);
bool hasTitleBar = browser->SupportsWindowFeature(Browser::FEATURE_TITLEBAR);
if ((self = [super initTabWindowControllerWithTabStrip:hasTabStrip
titleBar:hasTitleBar])) {
initializing_ = YES;
ownsBrowser_ = ownIt;
NSWindow* window = [self window];
// Make the content view for the window have a layer. This will make all
// sub-views have layers. This is necessary to ensure correct layer
// ordering of all child views and their layers.
[[window contentView] setWantsLayer:YES];
windowShim_.reset(new BrowserWindowCocoa(browser, self));
// This has to happen before -enforceMinWindowSize: is called further down.
[[self window]
setMinSize:(browser->is_type_tabbed() ? kMinCocoaTabbedWindowSize
: kMinCocoaPopupWindowSize)
// Lion will attempt to automagically save and restore the UI. This
// functionality appears to be leaky (or at least interacts badly with our
// architecture) and thus BrowserWindowController never gets released. This
// prevents the browser from being able to quit <>.
[window setRestorable:NO];
// Get the windows to swish in on Lion.
[window setAnimationBehavior:NSWindowAnimationBehaviorDocumentWindow];
// Get the most appropriate size for the window, then enforce the
// minimum width and height. The window shim will handle flipping
// the coordinates for us so we can use it to save some code.
// Note that this may leave a significant portion of the window
// offscreen, but there will always be enough window onscreen to
// drag the whole window back into view.
ui::WindowShowState show_state = ui::SHOW_STATE_DEFAULT;
gfx::Rect desiredContentRect;
gfx::Rect windowRect = desiredContentRect;
windowRect = [self enforceMinWindowSize:windowRect];
// When we are given x/y coordinates of 0 on a created popup window, assume
// none were given by the command.
if (browser_->is_type_popup() &&
windowRect.x() == 0 && windowRect.y() == 0) {
gfx::Size size = windowRect.size();
// Creates the manager for fullscreen and fullscreen bubbles.
new ExclusiveAccessController(self, browser_.get()));
// Size and position the window. Note that it is not yet onscreen. Popup
// windows may get resized later on in this function, once the actual size
// of the toolbar/tabstrip is known.
// Puts the incognito badge on the window frame, if necessary.
[self installAvatar];
// Create a sub-controller for the docked devTools and add its view to the
// hierarchy.
devToolsController_.reset([[DevToolsController alloc] init]);
[[devToolsController_ view] setFrame:[[self tabContentArea] bounds]];
[[self tabContentArea] addSubview:[devToolsController_ view]];
// Create the overlayable contents controller. This provides the switch
// view that TabStripController needs.
[[OverlayableContentsController alloc] init]);
[[overlayableContentsController_ view]
setFrame:[[devToolsController_ view] bounds]];
[[devToolsController_ view]
addSubview:[overlayableContentsController_ view]];
// Create a controller for the tab strip, giving it the model object for
// this window's Browser and the tab strip view. The controller will handle
// registering for the appropriate tab notifications from the back-end and
// managing the creation of new tabs.
[self createTabStripController];
// Create a controller for the toolbar, giving it the toolbar model object
// and the toolbar view from the nib. The controller will handle
// registering for the appropriate command state changes from the back-end.
// Adds the toolbar to the content area.
toolbarController_.reset([[ToolbarController alloc]
[[toolbarController_ toolbarView] setResizeDelegate:self];
[toolbarController_ setHasToolbar:[self hasToolbar]
hasLocationBar:[self hasLocationBar]];
// Create a sub-controller for the bookmark bar.
bookmarkBarController_.reset([[BookmarkBarController alloc]
initialWidth:NSWidth([[[self window] contentView] frame])
// This call loads the view.
BookmarkBarToolbarView* bookmarkBarView =
[bookmarkBarController_ controlledView];
[bookmarkBarView setResizeDelegate:self];
[bookmarkBarController_ setBookmarkBarEnabled:[self supportsBookmarkBar]];
// Create the infobar container view, so we can pass it to the
// ToolbarController.
[[InfoBarContainerController alloc] initWithResizeDelegate:self]);
// We don't want to try and show the bar before it gets placed in its parent
// view, so this step shoudn't be inside the bookmark bar controller's
// |-awakeFromNib|.
[self updateFullscreenCollectionBehavior];
[self layoutSubviews];
// For non-trusted, non-app popup windows, |desiredContentRect| contains the
// desired height of the content, not of the whole window. Now that all the
// views are laid out, measure the current content area size and grow if
// needed. The window has not been placed onscreen yet, so this extra resize
// will not cause visible jank.
if (chrome::SavedBoundsAreContentBounds(browser_.get())) {
CGFloat deltaH = desiredContentRect.height() -
NSHeight([[self tabContentArea] frame]);
// Do not shrink the window, as that may break minimum size invariants.
if (deltaH > 0) {
// Convert from tabContentArea coordinates to window coordinates.
NSSize convertedSize =
[[self tabContentArea] convertSize:NSMakeSize(0, deltaH)
NSRect frame = [[self window] frame];
frame.size.height += convertedSize.height;
frame.origin.y -= convertedSize.height;
[[self window] setFrame:frame display:NO];
// Create the bridge for the status bubble.
statusBubble_ = new StatusBubbleMac([self window], self);
// This must be done after the view is added to the window since it relies
// on the window bounds to determine whether to show buttons or not.
if ([self hasToolbar]) // Do not create the buttons in popups.
[toolbarController_ createBrowserActionButtons];
new ExtensionKeybindingRegistryCocoa(browser_->profile(),
[self window],
blockLayoutSubviews_ = NO;
// We are done initializing now.
initializing_ = NO;
return self;
- (void)dealloc {
DCHECK([self window]);
ClearCommandHandler([self window]);
// Explicitly release |fullscreenToolbarController_| here, as it may call
// back to this BWC in |-dealloc|.
[fullscreenToolbarController_ exitFullscreenMode];
// Explicitly release |fullscreenTransition_| here since it may call back to
// this BWC in |-dealloc|. Reset the fullscreen variables.
if (fullscreenTransition_) {
[fullscreenTransition_ browserWillBeDestroyed];
[self resetCustomAppKitFullscreenVariables];
// Under certain testing configurations we may not actually own the browser.
if (ownsBrowser_ == NO)
[[NSNotificationCenter defaultCenter] removeObserver:self];
// Inform reference counted objects that the Browser will be destroyed. This
// ensures they invalidate their weak Browser* to prevent use-after-free.
// These may outlive the Browser if they are retained by something else. For
// example, since 10.10, the Nib loader internally creates an NSDictionary
// that retains NSViewControllers and is autoreleased, so there is no way to
// guarantee that the [super dealloc] call below will also call dealloc on the
// controllers.
[toolbarController_ browserWillBeDestroyed];
[tabStripController_ browserWillBeDestroyed];
[findBarCocoaController_ browserWillBeDestroyed];
[downloadShelfController_ browserWillBeDestroyed];
[bookmarkBarController_ browserWillBeDestroyed];
[avatarButtonController_ browserWillBeDestroyed];
[bookmarkBubbleController_ browserWillBeDestroyed];
[super dealloc];
// Hack to address
// On TouchBar MacBooks, the touch bar machinery retains a reference
// to the browser window controller (which is an NSTouchBarProvider by
// default) but doesn't release it if Chrome quits before it takes the
// key window (for example, quitting from the Dock icon context menu.)
// If the window denies being a touch bar provider, it's never added
// to the set of providers and the reference is never taken. This
// prevents us from providing a touch bar from the window directly
// but descendant responders can still provide one.
// rdar://29467717
- (BOOL)conformsToProtocol:(Protocol*)protocol {
if ([protocol isEqual:NSProtocolFromString(@"NSFunctionBarProvider")] ||
[protocol isEqual:NSProtocolFromString(@"NSTouchBarProvider")]) {
return NO;
return [super conformsToProtocol:protocol];
- (gfx::Rect)enforceMinWindowSize:(gfx::Rect)bounds {
gfx::Rect checkedBounds = bounds;
NSSize minSize = [[self window] minSize];
if (bounds.width() < minSize.width)
if (bounds.height() < minSize.height)
return checkedBounds;
- (BrowserWindow*)browserWindow {
return windowShim_.get();
- (ToolbarController*)toolbarController {
return toolbarController_.get();
- (TabStripController*)tabStripController {
return tabStripController_.get();
- (FindBarCocoaController*)findBarCocoaController {
return findBarCocoaController_.get();
- (InfoBarContainerController*)infoBarContainerController {
return infoBarContainerController_.get();
- (StatusBubbleMac*)statusBubble {
return statusBubble_;
- (LocationBarViewMac*)locationBarBridge {
return [toolbarController_ locationBarBridge];
- (NSView*)floatingBarBackingView {
return floatingBarBackingView_;
- (OverlayableContentsController*)overlayableContentsController {
return overlayableContentsController_;
- (Profile*)profile {
return browser_->profile();
- (AvatarBaseController*)avatarButtonController {
return avatarButtonController_.get();
- (void)destroyBrowser {
[NSApp removeWindowsItem:[self window]];
// This is invoked from chrome::SessionEnding() which will terminate the
// process without spinning another RunLoop. So no need to perform an
// autorelease. Note this is currently controlled by an experiment. See
// features::kDesktopFastShutdown in chrome/browser/
DCHECK_EQ(browser_shutdown::GetShutdownType(), browser_shutdown::END_SESSION);
// Called when the window meets the criteria to be closed (ie,
// |-windowShouldClose:| returns YES). We must be careful to preserve the
// semantics of BrowserWindow::Close() and not call the Browser's dtor directly
// from this method.
- (void)windowWillClose:(NSNotification*)notification {
// Speculative fix for It seems possible that AppKit
// may invoke -windowWillClose: twice under rare conditions. That would cause
// the logic below to post a second -autorelease, resulting in a double free.
// (Well, actually, a zombie access when the closure tries to call release on
// the strongly captured |self| pointer).
DCHECK(!didWindowWillClose_) << "If hit, please update";
if (didWindowWillClose_)
didWindowWillClose_ = YES;
DCHECK_EQ([notification object], [self window]);
[savedRegularWindow_ close];
// We delete statusBubble here because we need to kill off the dependency
// that its window has on our window before our window goes away.
delete statusBubble_;
statusBubble_ = NULL;
// We can't actually use |-autorelease| here because there's an embedded
// run loop in the |-performClose:| which contains its own autorelease pool.
// Instead call it after a zero-length delay, which gets us back to the main
// event loop.
[self performSelector:@selector(autorelease)
- (void)updateDevToolsForContents:(WebContents*)contents {
BOOL layout_changed =
[devToolsController_ updateDevToolsForWebContents:contents
if (layout_changed && [findBarCocoaController_ isFindBarVisible])
[self layoutSubviews];
// Called when the user wants to close a window or from the shutdown process.
// The Browser object is in control of whether or not we're allowed to close. It
// may defer closing due to several states, such as onUnload handlers needing to
// be fired. If closing is deferred, the Browser will handle the processing
// required to get us to the closing state and (by watching for all the tabs
// going away) will again call to close the window when it's finally ready.
- (BOOL)windowShouldClose:(id)sender {
// Disable updates while closing all tabs to avoid flickering.
gfx::ScopedCocoaDisableScreenUpdates disabler;
// Give beforeunload handlers the chance to cancel the close before we hide
// the window below.
if (!browser_->ShouldCloseWindow())
return NO;
// saveWindowPositionIfNeeded: only works if we are the last active
// window, but orderOut: ends up activating another window, so we
// have to save the window position before we call orderOut:.
[self saveWindowPositionIfNeeded];
bool fast_tab_closing_enabled =
if (!browser_->tab_strip_model()->empty()) {
// Tab strip isn't empty. Hide the frame (so it appears to have closed
// immediately) and close all the tabs, allowing the renderers to shut
// down. When the tab strip is empty we'll be called back again.
[[self window] orderOut:self];
if (fast_tab_closing_enabled)
return NO;
} else if (fast_tab_closing_enabled &&
!browser_->HasCompletedUnloadProcessing()) {
// The browser needs to finish running unload handlers.
// Hide the window (so it appears to have closed immediately), and
// the browser will call us back again when it is ready to close.
[[self window] orderOut:self];
return NO;
// the tab strip is empty, it's ok to close the window
return YES;
// Called right after our window became the main window.
- (void)windowDidBecomeMain:(NSNotification*)notification {
// Set this window as active even if the previously active window was the
// same one. This is needed for tracking visibility changes of a browser.
if (browser_->window())
// Always saveWindowPositionIfNeeded when becoming main, not just
// when |browser_| is not the last active browser. See .
[self saveWindowPositionIfNeeded];
NSView* rootView = [[[self window] contentView] superview];
[rootView cr_recursivelyInvokeBlock:^(id view) {
if ([view conformsToProtocol:@protocol(ThemedWindowDrawing)])
[view windowDidChangeActive];
- (void)windowDidResignMain:(NSNotification*)notification {
NSView* rootView = [[[self window] contentView] superview];
[rootView cr_recursivelyInvokeBlock:^(id view) {
if ([view conformsToProtocol:@protocol(ThemedWindowDrawing)])
[view windowDidChangeActive];
if (browser_->window())
// Called when we have been minimized.
- (void)windowDidMiniaturize:(NSNotification *)notification {
[self saveWindowPositionIfNeeded];
// Called when we have been unminimized.
- (void)windowDidDeminiaturize:(NSNotification *)notification {
// Make sure the window's show_state (which is now ui::SHOW_STATE_NORMAL)
// gets saved.
[self saveWindowPositionIfNeeded];
// Called when the user clicks the zoom button (or selects it from the Window
// menu) to determine the "standard size" of the window, based on the content
// and other factors. If the current size/location differs nontrivally from the
// standard size, Cocoa resizes the window to the standard size, and saves the
// current size as the "user size". If the current size/location is the same (up
// to a fudge factor) as the standard size, Cocoa resizes the window to the
// saved user size. (It is possible for the two to coincide.) In this way, the
// zoom button acts as a toggle. We determine the standard size based on the
// content, but enforce a minimum width (calculated using the dimensions of the
// screen) to ensure websites with small intrinsic width (such as
// don't end up with a wee window. Moreover, we always declare the standard
// width to be at least as big as the current width, i.e., we never want zooming
// to the standard width to shrink the window. This is consistent with other
// browsers' behaviour, and is desirable in multi-tab situations. Note, however,
// that the "toggle" behaviour means that the window can still be "unzoomed" to
// the user size.
// Note: this method is also called from -isZoomed. If the returned zoomed rect
// equals the current window's frame, -isZoomed returns YES.
- (NSRect)windowWillUseStandardFrame:(NSWindow*)window
defaultFrame:(NSRect)frame {
// Forget that we grew the window up (if we in fact did).
[self resetWindowGrowthState];
// |frame| already fills the current screen. Never touch y and height since we
// always want to fill vertically.
// If the shift key is down, maximize. Hopefully this should make the
// "switchers" happy.
if ([[NSApp currentEvent] modifierFlags] & NSShiftKeyMask) {
return frame;
// To prevent strange results on portrait displays, the basic minimum zoomed
// width is the larger of: 60% of available width, 60% of available height
// (bounded by available width).
const CGFloat kProportion = 0.6;
CGFloat zoomedWidth =
std::max(kProportion * NSWidth(frame),
std::min(kProportion * NSHeight(frame), NSWidth(frame)));
WebContents* contents = browser_->tab_strip_model()->GetActiveWebContents();
if (contents) {
CGFloat intrinsicWidth =
// If the intrinsic width is bigger, then make it the zoomed width.
zoomedWidth = std::max(zoomedWidth,
std::min(intrinsicWidth, NSWidth(frame)));
// Never shrink from the current size on zoom (see above).
NSRect currentFrame = [[self window] frame];
zoomedWidth = std::max(zoomedWidth, NSWidth(currentFrame));
// |frame| determines our maximum extents. We need to set the origin of the
// frame -- and only move it left if necessary.
if (currentFrame.origin.x + zoomedWidth > NSMaxX(frame))
frame.origin.x = NSMaxX(frame) - zoomedWidth;
frame.origin.x = currentFrame.origin.x;
// Set the width. Don't touch y or height.
frame.size.width = zoomedWidth;
return frame;
- (void)activate {
[BrowserWindowUtils activateWindowForController:[self nsWindowController]];
// Determine whether we should let a window zoom/unzoom to the given |newFrame|.
// We avoid letting unzoom move windows between screens, because it's really
// strange and unintuitive.
- (BOOL)windowShouldZoom:(NSWindow*)window toFrame:(NSRect)newFrame {
// Figure out which screen |newFrame| is on.
NSScreen* newScreen = nil;
CGFloat newScreenOverlapArea = 0.0;
for (NSScreen* screen in [NSScreen screens]) {
NSRect overlap = NSIntersectionRect(newFrame, [screen frame]);
CGFloat overlapArea = NSWidth(overlap) * NSHeight(overlap);
if (overlapArea > newScreenOverlapArea) {
newScreen = screen;
newScreenOverlapArea = overlapArea;
// If we're somehow not on any screen, allow the zoom.
if (!newScreen)
return YES;
// If the new screen is the current screen, we can return a definitive YES.
// Note: This check is not strictly necessary, but just short-circuits in the
// "no-brainer" case. To test the complicated logic below, comment this out!
NSScreen* curScreen = [window screen];
if (newScreen == curScreen)
return YES;
// Worry a little: What happens when a window is on two (or more) screens?
// E.g., what happens in a 50-50 scenario? Cocoa may reasonably elect to zoom
// to the other screen rather than staying on the officially current one. So
// we compare overlaps with the current window frame, and see if Cocoa's
// choice was reasonable (allowing a small rounding error). This should
// hopefully avoid us ever erroneously denying a zoom when a window is on
// multiple screens.
NSRect curFrame = [window frame];
NSRect newScrIntersectCurFr = NSIntersectionRect([newScreen frame], curFrame);
NSRect curScrIntersectCurFr = NSIntersectionRect([curScreen frame], curFrame);
if (NSWidth(newScrIntersectCurFr) * NSHeight(newScrIntersectCurFr) >=
(NSWidth(curScrIntersectCurFr) * NSHeight(curScrIntersectCurFr) - 1.0)) {
return YES;
// If it wasn't reasonable, return NO.
return NO;
// Adjusts the window height by the given amount.
- (BOOL)adjustWindowHeightBy:(CGFloat)deltaH {
// By not adjusting the window height when initializing, we can ensure that
// the window opens with the same size that was saved on close.
if (initializing_ || [self isInAnyFullscreenMode] || deltaH == 0)
return NO;
NSWindow* window = [self window];
NSRect windowFrame = [window frame];
NSRect workarea = [[window screen] visibleFrame];
// Prevent the window from growing smaller than its minimum height:
// .
if (deltaH < 0) {
CGFloat minWindowHeight = [window minSize].height;
if (windowFrame.size.height + deltaH < minWindowHeight) {
// |deltaH| + |windowFrame.size.height| = |minWindowHeight|.
deltaH = minWindowHeight - windowFrame.size.height;
if (deltaH == 0) {
return NO;
// If the window is not already fully in the workarea, do not adjust its frame
// at all.
if (!NSContainsRect(workarea, windowFrame))
return NO;
// Record the position of the top/bottom of the window, so we can easily check
// whether we grew the window upwards/downwards.
CGFloat oldWindowMaxY = NSMaxY(windowFrame);
CGFloat oldWindowMinY = NSMinY(windowFrame);
// We are "zoomed" if we occupy the full vertical space.
bool isZoomed = (windowFrame.origin.y == workarea.origin.y &&
NSHeight(windowFrame) == NSHeight(workarea));
// If we're shrinking the window....
if (deltaH < 0) {
bool didChange = false;
// Don't reset if not currently zoomed since shrinking can take several
// steps!
if (isZoomed)
isShrinkingFromZoomed_ = YES;
// If we previously grew at the top, shrink as much as allowed at the top
// first.
if (windowTopGrowth_ > 0) {
CGFloat shrinkAtTopBy = MIN(-deltaH, windowTopGrowth_);
windowFrame.size.height -= shrinkAtTopBy; // Shrink the window.
deltaH += shrinkAtTopBy; // Update the amount left to shrink.
windowTopGrowth_ -= shrinkAtTopBy; // Update the growth state.
didChange = true;
// Similarly for the bottom (not an "else if" since we may have to
// simultaneously shrink at both the top and at the bottom). Note that
// |deltaH| may no longer be nonzero due to the above.
if (deltaH < 0 && windowBottomGrowth_ > 0) {
CGFloat shrinkAtBottomBy = MIN(-deltaH, windowBottomGrowth_);
windowFrame.origin.y += shrinkAtBottomBy; // Move the window up.
windowFrame.size.height -= shrinkAtBottomBy; // Shrink the window.
deltaH += shrinkAtBottomBy; // Update the amount left....
windowBottomGrowth_ -= shrinkAtBottomBy; // Update the growth state.
didChange = true;
// If we're shrinking from zoomed but we didn't change the top or bottom
// (since we've reached the limits imposed by |window...Growth_|), then stop
// here. Don't reset |isShrinkingFromZoomed_| since we might get called
// again for the same shrink.
if (isShrinkingFromZoomed_ && !didChange)
return NO;
} else {
isShrinkingFromZoomed_ = NO;
// Don't bother with anything else.
if (isZoomed)
return NO;
// Shrinking from zoomed is handled above (and is constrained by
// |window...Growth_|).
if (!isShrinkingFromZoomed_) {
// Resize the window down until it hits the bottom of the workarea, then if
// needed continue resizing upwards. Do not resize the window to be taller
// than the current workarea.
// Resize the window as requested, keeping the top left corner fixed.
windowFrame.origin.y -= deltaH;
windowFrame.size.height += deltaH;
// If the bottom left corner is now outside the visible frame, move the
// window up to make it fit, but make sure not to move the top left corner
// out of the visible frame.
if (windowFrame.origin.y < workarea.origin.y) {
windowFrame.origin.y = workarea.origin.y;
windowFrame.size.height =
std::min(NSHeight(windowFrame), NSHeight(workarea));
// Record (if applicable) how much we grew the window in either direction.
// (N.B.: These only record growth, not shrinkage.)
if (NSMaxY(windowFrame) > oldWindowMaxY)
windowTopGrowth_ += NSMaxY(windowFrame) - oldWindowMaxY;
if (NSMinY(windowFrame) < oldWindowMinY)
windowBottomGrowth_ += oldWindowMinY - NSMinY(windowFrame);
// Disable subview resizing while resizing the window, or else we will get
// unwanted renderer resizes. The calling code must call layoutSubviews to
// make things right again.
NSView* chromeContentView = [self chromeContentView];
BOOL autoresizesSubviews = [chromeContentView autoresizesSubviews];
[chromeContentView setAutoresizesSubviews:NO];
// On Yosemite the toolbar can flicker when hiding or showing the bookmarks
// bar. Here, |chromeContentView| is set to not autoresize its subviews during
// the window resize. Because |chromeContentView| is not flipped, if the
// window is getting shorter, the toolbar will move up within the window.
// Soon after, a call to layoutSubviews corrects its position. Passing NO to
// setFrame:display: should keep the toolbarView's intermediate position
// hidden, as should the prior call to disable screen updates. For some
// reason, neither prevents the toolbarView's intermediate position from
// becoming visible. Its subsequent appearance in its correct location causes
// the flicker. It may be that the Appkit assumes that updating the window
// immediately is not a big deal given that everything in it is layer-backed.
// Indeed, turning off layer backing for all ancestors of the toolbarView
// causes the flicker to go away.
// By shifting the toolbarView enough so that it's in its correct location
// immediately after the call to setFrame:display:, the toolbar will be in
// the right spot when the Appkit prematurely flushes the window contents to
// the screen. .
if ([self hasToolbar]) {
NSView* toolbarView = [toolbarController_ view];
NSRect currentWindowFrame = [window frame];
NSRect toolbarViewFrame = [toolbarView frame];
toolbarViewFrame.origin.y += windowFrame.size.height -
[toolbarView setFrame:toolbarViewFrame];
[window setFrame:windowFrame display:NO];
[chromeContentView setAutoresizesSubviews:autoresizesSubviews];
return YES;
// Main method to resize browser window subviews. This method should be called
// when resizing any child of the content view, rather than resizing the views
// directly. If the view is already the correct height, does not force a
// relayout.
- (void)resizeView:(NSView*)view newHeight:(CGFloat)height {
// We should only ever be called for one of the following four views.
// |downloadShelfController_| may be nil. If we are asked to size the bookmark
// bar directly, its superview must be this controller's content view.
DCHECK(view == [toolbarController_ view] ||
view == [infoBarContainerController_ view] ||
view == [downloadShelfController_ view] ||
view == [bookmarkBarController_ view]);
// The infobar has insufficient information to determine its new height. It
// knows the total height of all of the info bars (which is what it passes
// into this method), but knows nothing about the maximum arrow height, which
// is determined by this class.
if (view == [infoBarContainerController_ view]) {
base::scoped_nsobject<BrowserWindowLayout> layout(
[[BrowserWindowLayout alloc] init]);
[self updateLayoutParameters:layout];
// Use the new height for the info bar.
[layout setInfoBarHeight:height];
chrome::LayoutOutput output = [layout computeLayout];
height = NSHeight(output.infoBarFrame);
// Change the height of the view and call |-layoutSubViews|. We set the height
// here without regard to where the view is on the screen or whether it needs
// to "grow up" or "grow down." The below call to |-layoutSubviews| will
// position each view correctly.
NSRect frame = [view frame];
if (NSHeight(frame) == height)
// Disable screen updates to prevent flickering.
gfx::ScopedCocoaDisableScreenUpdates disabler;
// Grow or shrink the window by the amount of the height change. We adjust
// the window height only in two cases:
// 1) We are adjusting the height of the bookmark bar and it is currently
// animating either open or closed.
// 2) We are adjusting the height of the download shelf.
// We do not adjust the window height for bookmark bar changes on the NTP.
BOOL shouldAdjustBookmarkHeight =
[bookmarkBarController_ isAnimatingBetweenState:BookmarkBar::HIDDEN
if ((shouldAdjustBookmarkHeight && view == [bookmarkBarController_ view]) ||
view == [downloadShelfController_ view]) {
CGFloat deltaH = height - NSHeight(frame);
[self adjustWindowHeightBy:deltaH];
frame.size.height = height;
// TODO(rohitrao): Determine if calling setFrame: twice is bad.
[view setFrame:frame];
[self layoutSubviews];
- (BOOL)handledByExtensionCommand:(NSEvent*)event
priority:(ui::AcceleratorManager::HandlerPriority)priority {
return extensionKeybindingRegistry_->ProcessKeyEvent(
content::NativeWebKeyboardEvent(event), priority);
// StatusBubble delegate method: tell the status bubble the frame it should
// position itself in.
- (NSRect)statusBubbleBaseFrame {
NSView* view = [overlayableContentsController_ view];
return [view convertRect:[view bounds] toView:nil];
- (void)updateToolbarWithContents:(WebContents*)tab {
[toolbarController_ updateToolbarWithContents:tab];
- (void)resetTabState:(WebContents*)tab {
[toolbarController_ resetTabState:tab];
- (void)setStarredState:(BOOL)isStarred {
[toolbarController_ setStarredState:isStarred];
- (void)setCurrentPageIsTranslated:(BOOL)on {
[toolbarController_ setTranslateIconLit:on];
- (void)onActiveTabChanged:(content::WebContents*)oldContents
to:(content::WebContents*)newContents {
if ([self isInAnyFullscreenMode]) {
[[self fullscreenToolbarController] revealToolbarForWebContents:newContents
- (void)zoomChangedForActiveTab:(BOOL)canShowBubble {
[toolbarController_ zoomChangedForActiveTab:canShowBubble];
// Accept tabs from a BrowserWindowController with the same Profile.
- (BOOL)canReceiveFrom:(TabWindowController*)source {
BrowserWindowController* realSource =
if (!realSource || browser_->profile() != realSource->browser_->profile()) {
return NO;
// Can't drag a tab from a normal browser to a pop-up
if (browser_->type() != realSource->browser_->type()) {
return NO;
return YES;
// Move a given tab view to the location of the current placeholder. If there is
// no placeholder, it will go at the end. |controller| is the window controller
// of a tab being dropped from a different window. It will be nil if the drag is
// within the window, otherwise the tab is removed from that window before being
// placed into this one. The implementation will call |-removePlaceholder| since
// the drag is now complete. This also calls |-layoutTabs| internally so
// clients do not need to call it again.
- (void)moveTabViews:(NSArray*)views
fromController:(TabWindowController*)dragController {
if (dragController) {
// Moving between windows.
NSView* activeTabView = [dragController activeTabView];
BrowserWindowController* dragBWC =
// We will drop the tabs starting at indexOfPlaceholder, and increment from
// there. We remove the placehoder before dropping the tabs, so that the
// new tab animation's destination frame is correct.
int tabIndex = [tabStripController_ indexOfPlaceholder];
[self removePlaceholder];
for (NSView* view in views) {
// Figure out the WebContents to drop into our tab model from the source
// window's model.
int index = [dragBWC->tabStripController_ modelIndexForTabView:view];
WebContents* contents =
// The tab contents may have gone away if given a window.close() while it
// is being dragged. If so, bail, we've got nothing to drop.
if (!contents)
// Convert |view|'s frame (which starts in the source tab strip's
// coordinate system) to the coordinate system of the destination tab
// strip. This needs to be done before being detached so the window
// transforms can be performed.
NSRect destinationFrame = [view frame];
NSPoint tabOrigin = destinationFrame.origin;
tabOrigin = [[dragController tabStripView] convertPoint:tabOrigin
tabOrigin = ui::ConvertPointFromWindowToScreen([dragController window],
tabOrigin = ui::ConvertPointFromScreenToWindow([self window], tabOrigin);
tabOrigin = [[self tabStripView] convertPoint:tabOrigin fromView:nil];
destinationFrame.origin = tabOrigin;
// Before the tab is detached from its originating tab strip, store the
// pinned state so that it can be maintained between the windows.
bool isPinned = dragBWC->browser_->tab_strip_model()->IsTabPinned(index);
// Now that we have enough information about the tab, we can remove it
// from the dragging window. We need to do this *before* we add it to the
// new window as this will remove the WebContents' delegate.
[dragController detachTabView:view];
// Deposit it into our model at the appropriate location (it already knows
// where it should go from tracking the drag). Doing this sets the tab's
// delegate to be the Browser.
[tabStripController_ dropWebContents:contents
activate:view == activeTabView];
} else {
// Moving within a window.
for (NSView* view in views) {
int index = [tabStripController_ modelIndexForTabView:view];
[tabStripController_ moveTabFromIndex:index];
[self removePlaceholder];
// Tells the tab strip to forget about this tab in preparation for it being
// put into a different tab strip, such as during a drop on another window.
- (void)detachTabView:(NSView*)view {
int index = [tabStripController_ modelIndexForTabView:view];
// TODO(erikchen): While it might be nice to fix ownership semantics here,
// realistically the code is going to be deleted in the not-too-distant
// future.
- (NSArray*)tabViews {
return [tabStripController_ tabViews];
- (NSView*)activeTabView {
return [tabStripController_ activeTabView];
- (void)setIsLoading:(BOOL)isLoading force:(BOOL)force {
[toolbarController_ setIsLoading:isLoading force:force];
- (void)firstResponderUpdated:(NSResponder*)responder {
if (![self isInAppKitFullscreen] ||
[fullscreenToolbarController_ toolbarStyle] ==
FullscreenToolbarStyle::TOOLBAR_NONE) {
if (!responder) {
[self releaseToolbarVisibilityForOwner:self withAnimation:YES];
if (![responder isKindOfClass:[NSView class]])
// If the view is in the download shelf or the tab content area, don't
// lock the toolbar.
NSView* view = base::mac::ObjCCastStrict<NSView>(responder);
if (![view isDescendantOf:[[self window] contentView]] ||
[view isDescendantOf:[downloadShelfController_ view]] ||
[view isDescendantOf:[self tabContentArea]]) {
[self releaseToolbarVisibilityForOwner:self withAnimation:YES];
[self lockToolbarVisibilityForOwner:self withAnimation:YES];
// Make the location bar the first responder, if possible.
- (void)focusLocationBar:(BOOL)selectAll {
[toolbarController_ focusLocationBar:selectAll];
- (void)focusTabContents {
content::WebContents* const activeWebContents =
if (activeWebContents)
- (void)layoutTabs {
[tabStripController_ layoutTabs];
- (TabWindowController*)detachTabsToNewWindow:(NSArray*)tabViews
draggedTab:(NSView*)draggedTab {
DCHECK_GT([tabViews count], 0U);
// Disable screen updates so that this appears as a single visual change.
gfx::ScopedCocoaDisableScreenUpdates disabler;
// Set the window size. Need to do this before we detach the tab so it's
// still in the window. We have to flip the coordinates as that's what
// is expected by the Browser code.
NSWindow* sourceWindow = [draggedTab window];
NSRect windowRect = [sourceWindow frame];
NSScreen* screen = [sourceWindow screen];
windowRect.origin.y =
NSHeight([screen frame]) - NSMaxY(windowRect) + [self menubarOffset];
gfx::Rect browserRect(windowRect.origin.x, windowRect.origin.y,
NSWidth(windowRect), NSHeight(windowRect));
std::vector<TabStripModelDelegate::NewStripContents> contentses;
TabStripModel* model = browser_->tab_strip_model();
for (TabView* tabView in tabViews) {
// Fetch the tab contents for the tab being dragged.
int index = [tabStripController_ modelIndexForTabView:tabView];
bool isPinned = model->IsTabPinned(index);
bool isActive = (index == model->active_index());
TabStripModelDelegate::NewStripContents item;
item.web_contents = model->DetachWebContentsAt(index);
item.add_types =
(isActive ? TabStripModel::ADD_ACTIVE : TabStripModel::ADD_NONE) |
(isPinned ? TabStripModel::ADD_PINNED : TabStripModel::ADD_NONE);
// Create a new window with the dragged tabs in its model.
Browser* newBrowser =
std::move(contentses), browserRect, false);
// Get the new controller by asking the new window for its delegate.
BrowserWindowController* controller = [BrowserWindowController
DCHECK(controller && [controller isKindOfClass:[TabWindowController class]]);
// Ensure that the window will appear on top of the source window in
// fullscreen mode.
if ([self isInAppKitFullscreen]) {
NSWindow* window = [controller window];
NSUInteger collectionBehavior = [window collectionBehavior];
collectionBehavior &= ~NSWindowCollectionBehaviorFullScreenPrimary;
collectionBehavior |= NSWindowCollectionBehaviorFullScreenAuxiliary;
[window setCollectionBehavior:collectionBehavior];
[window setLevel:NSFloatingWindowLevel];
controller->savedRegularWindowFrame_ = savedRegularWindowFrame_;
// And make sure we use the correct frame in the new view.
TabStripController* tabStripController = [controller tabStripController];
NSView* tabStrip = [self tabStripView];
NSEnumerator* tabEnumerator = [tabViews objectEnumerator];
for (NSView* newView in [tabStripController tabViews]) {
NSView* oldView = [tabEnumerator nextObject];
if (oldView) {
// Pushes tabView's frame back inside the tabstrip.
NSRect sourceTabRect = [oldView frame];
NSSize tabOverflow =
[self overflowFrom:[tabStrip convertRect:sourceTabRect toView:nil]
to:[tabStrip frame]];
NSRect tabRect =
NSOffsetRect(sourceTabRect, -tabOverflow.width, -tabOverflow.height);
// Force the added tab to the right size (remove stretching.)
tabRect.size.height = [TabStripController defaultTabHeight];
[tabStripController setFrame:tabRect ofTabView:newView];
return controller;
- (void)detachedWindowEnterFullscreenIfNeeded:(TabWindowController*)source {
// Ensure that this is only called when the tab is detached into its own
// window (in which the overlay window will be present).
DCHECK([self overlayWindow]);
if (([[source window] styleMask] & NSFullScreenWindowMask)
== NSFullScreenWindowMask) {
[self updateFullscreenCollectionBehavior];
// Since the detached window in fullscreen will have the size of the
// screen, it will set |savedRegularWindowFrame_| to the screen size after
// it enters fullscreen. Make sure that we have the correct value for the
// |savedRegularWindowFrame_|.
NSRect regularWindowFrame = savedRegularWindowFrame_;
[[self window] toggleFullScreen:nil];
savedRegularWindowFrame_ = regularWindowFrame;
- (void)insertPlaceholderForTab:(TabView*)tab
frame:(NSRect)frame {
[super insertPlaceholderForTab:tab frame:frame];
[tabStripController_ insertPlaceholderForTab:tab frame:frame];
- (void)removePlaceholder {
[super removePlaceholder];
[tabStripController_ insertPlaceholderForTab:nil frame:NSZeroRect];
- (BOOL)isDragSessionActive {
// The tab can be dragged within the existing tab strip or detached
// into its own window (then the overlay window will be present).
return [[self tabStripController] isDragSessionActive] ||
[self overlayWindow] != nil;
- (BOOL)tabDraggingAllowed {
return [tabStripController_ tabDraggingAllowed];
- (BOOL)tabTearingAllowed {
return ![self isInAnyFullscreenMode] || IsTabDetachingInFullscreenEnabled();
- (BOOL)windowMovementAllowed {
return ![self isInAnyFullscreenMode] || [self overlayWindow];
- (BOOL)isTabFullyVisible:(TabView*)tab {
return [tabStripController_ isTabFullyVisible:tab];
- (void)showNewTabButton:(BOOL)show {
[tabStripController_ showNewTabButton:show];
- (BOOL)shouldShowAvatar {
if (![self hasTabStrip])
return NO;
if (browser_->profile()->IsOffTheRecord())
return YES;
ProfileAttributesEntry* entry;
return g_browser_process->profile_manager()
.GetProfileAttributesWithPath(browser_->profile()->GetPath(), &entry);
- (BOOL)shouldUseNewAvatarButton {
return profiles::IsRegularOrGuestSession(browser_.get());
- (BOOL)isBookmarkBarVisible {
return [bookmarkBarController_ isVisible];
- (BOOL)isBookmarkBarAnimating {
return [bookmarkBarController_ isAnimationRunning];
- (BookmarkBarController*)bookmarkBarController {
return bookmarkBarController_;
- (DevToolsController*)devToolsController {
return devToolsController_;
- (BOOL)isDownloadShelfVisible {
return downloadShelfController_ != nil &&
[downloadShelfController_ isVisible];
- (void)createAndAddDownloadShelf {
if (!downloadShelfController_.get()) {
downloadShelfController_.reset([[DownloadShelfController alloc]
initWithBrowser:browser_.get() resizeDelegate:self]);
[self.chromeContentView addSubview:[downloadShelfController_ view]];
[self layoutSubviews];
- (DownloadShelfController*)downloadShelf {
return downloadShelfController_;
- (void)addFindBar:(FindBarCocoaController*)findBarCocoaController {
// Shouldn't call addFindBar twice.
// Create a controller for the findbar.
findBarCocoaController_.reset([findBarCocoaController retain]);
[self layoutSubviews];
[self updateSubviewZOrder];
- (NSWindow*)createFullscreenWindow {
NSWindow* window = [[[FullscreenWindow alloc]
initForScreen:[[self window] screen]] autorelease];
return window;
- (NSInteger)numberOfTabs {
// count() includes pinned tabs.
return browser_->tab_strip_model()->count();
- (BOOL)hasLiveTabs {
return !browser_->tab_strip_model()->empty();
- (NSString*)activeTabTitle {
WebContents* contents = browser_->tab_strip_model()->GetActiveWebContents();
return base::SysUTF16ToNSString(contents->GetTitle());
- (NSRect)regularWindowFrame {
return [self isInAnyFullscreenMode] ? savedRegularWindowFrame_
: [[self window] frame];
// (Override of |TabWindowController| method.)
- (BOOL)hasTabStrip {
return [self supportsWindowFeature:Browser::FEATURE_TABSTRIP];
- (BOOL)isTabDraggable:(NSView*)tabView {
// TODO(avi, thakis): ConstrainedWindowSheetController has no api to move
// tabsheets between windows. Until then, we have to prevent having to move a
// tabsheet between windows, e.g. no tearing off of tabs.
int index = [tabStripController_ modelIndexForTabView:tabView];
WebContents* contents = browser_->tab_strip_model()->GetWebContentsAt(index);
if (!contents)
return NO;
const web_modal::WebContentsModalDialogManager* manager =
return !manager || !manager->IsDialogActive();
- (CGFloat)menubarOffset {
return [[self fullscreenToolbarController] computeLayout].menubarOffset;
// TabStripControllerDelegate protocol.
- (void)onActivateTabWithContents:(WebContents*)contents {
// Update various elements that are interested in knowing the current
// WebContents.
// Update all the UI bits.
// Update the bookmark bar.
// TODO(viettrungluu): perhaps update to not terminate running animations (if
// applicable)?
[infoBarContainerController_ changeWebContents:contents];
// Must do this after bookmark and infobar updates to avoid
// unnecesary resize in contents.
[devToolsController_ updateDevToolsForWebContents:contents
- (void)onTabChanged:(TabChangeType)change withContents:(WebContents*)contents {
// Update titles if this is the currently selected tab and if it isn't just
// the loading state which changed.
if (change != TabChangeType::kLoadingOnly)
// Update the bookmark bar if this is the currently selected tab. This for
// transitions between the NTP (showing its floating bookmark bar) and normal
// web pages (showing no bookmark bar).
// TODO(viettrungluu): perhaps update to not terminate running animations?
- (void)onTabDetachedWithContents:(WebContents*)contents {
[infoBarContainerController_ tabDetachedWithContents:contents];
- (void)onTabInsertedWithContents:(content::WebContents*)contents
inForeground:(BOOL)inForeground {
if ([self isInAnyFullscreenMode] && !inForeground)
[[self fullscreenToolbarController]
if (inForeground) {
AppToolbarButton* appMenuButton =
static_cast<AppToolbarButton*>([toolbarController_ appMenuButton]);
[appMenuButton animateIfPossibleWithDelay:YES];
- (void)userChangedTheme {
NSView* rootView = [[[self window] contentView] superview];
[rootView cr_recursivelyInvokeBlock:^(id view) {
if ([view conformsToProtocol:@protocol(ThemedWindowDrawing)])
[view windowDidChangeTheme];
// TODO(andresantoso): Remove this once all themed views respond to
// windowDidChangeTheme above.
[view setNeedsDisplay:YES];
- (const ui::ThemeProvider*)themeProvider {
return &ThemeService::GetThemeProviderForProfile(browser_->profile());
- (ThemedWindowStyle)themedWindowStyle {
ThemedWindowStyle style = 0;
if (browser_->profile()->IsOffTheRecord())
if (browser_->is_devtools())
if (browser_->is_type_popup())
style |= THEMED_POPUP;
return style;
- (NSPoint)themeImagePositionForAlignment:(ThemeImageAlignment)alignment {
NSView* windowChromeView = [[[self window] contentView] superview];
NSView* tabStripView = nil;
if ([self hasTabStrip])
tabStripView = [self tabStripView];
return [BrowserWindowUtils themeImagePositionFor:windowChromeView
- (NSPoint)bookmarkBubblePoint {
return [toolbarController_ bookmarkBubblePoint];
// Show the bookmark bubble (e.g. user just clicked on the STAR).
- (void)showBookmarkBubbleForURL:(const GURL&)url
alreadyBookmarked:(BOOL)alreadyMarked {
if (bookmarkBubbleObserver_.get())
bookmarkBubbleObserver_.reset(new BookmarkBubbleObserverCocoa(self));
if (chrome::ShowPilotDialogsWithViewsToolkit()) {
[self window], [self bookmarkBubblePoint])),
[[self window] contentView], bookmarkBubbleObserver_.get(),
browser_.get(), url, alreadyMarked,
[self locationBarBridge]->star_decoration());
} else {
NOTREACHED() << "MacViews Browser can't show cocoa dialogs";
BookmarkModel* model =
bookmarks::ManagedBookmarkService* managed =
const BookmarkNode* node = model->GetMostRecentlyAddedUserNodeForURL(url);
bookmarkBubbleController_ = [[BookmarkBubbleController alloc]
initWithParentWindow:[self window]
[bookmarkBubbleController_ showWindow:self];
- (void)bookmarkBubbleClosed {
// Nil out the weak bookmark bubble controller reference.
bookmarkBubbleController_ = nil;
// Handle the editBookmarkNode: action sent from bookmark bubble controllers.
- (void)editBookmarkNode:(id)sender {
BOOL responds = [sender respondsToSelector:@selector(node)];
if (responds) {
const BookmarkNode* node = [sender node];
if (node)
BookmarkEditor::Show([self window], browser_->profile(),
- (void)showTranslateBubbleForWebContents:(content::WebContents*)contents
errorType {
if (chrome::ShowAllDialogsWithViewsToolkit()) {
ShowTranslateBubbleViews([self window], [self locationBarBridge], contents,
step, errorType, true);
// TODO(hajimehoshi): The similar logic exists at TranslateBubbleView::
// ShowBubble. This should be unified.
if (translateBubbleController_) {
// When the user reads the advanced setting panel, the bubble should not be
// changed because they are focusing on the bubble.
if (translateBubbleController_.webContents == contents &&
translateBubbleController_.model->GetViewState() ==
TranslateBubbleModel::VIEW_STATE_ADVANCED) {
if (step != translate::TRANSLATE_STEP_TRANSLATE_ERROR) {
TranslateBubbleModel::ViewState viewState =
[translateBubbleController_ switchView:viewState];
} else {
[translateBubbleController_ switchToErrorView:errorType];
std::string sourceLanguage;
std::string targetLanguage;
contents, &sourceLanguage, &targetLanguage);
std::unique_ptr<translate::TranslateUIDelegate> uiDelegate(
new translate::TranslateUIDelegate(
sourceLanguage, targetLanguage));
std::unique_ptr<TranslateBubbleModel> model(
new TranslateBubbleModelImpl(step, std::move(uiDelegate)));
translateBubbleController_ =
[[TranslateBubbleController alloc] initWithParentWindow:self
[translateBubbleController_ showWindow:nil];
NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
[center addObserver:self
object:[translateBubbleController_ window]];
- (void)dismissPermissionBubble {
PermissionPrompt::Delegate* delegate = [self permissionRequestManager];
if (delegate)
// Nil out the weak translate bubble controller reference.
- (void)translateBubbleWindowWillClose:(NSNotification*)notification {
DCHECK_EQ([notification object], [translateBubbleController_ window]);
NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
[center removeObserver:self
object:[translateBubbleController_ window]];
translateBubbleController_ = nil;
// If the browser is in incognito mode or has multi-profiles, install the image
// view to decorate the window at the upper right. Use the same base y
// coordinate as the tab strip.
- (void)installAvatar {
// Install the image into the badge view. Hide it for now; positioning and
// sizing will be done by the layout code. The AvatarIcon will choose which
// image to display based on the browser. The AvatarButton will display
// the browser profile's name unless the browser is incognito.
NSView* view;
if ([self shouldUseNewAvatarButton]) {
avatarButtonController_.reset([[AvatarButtonController alloc]
window:[self window]]);
} else {
[[AvatarIconController alloc] initWithBrowser:browser_.get()]);
view = [avatarButtonController_ view];
if (cocoa_l10n_util::ShouldFlipWindowControlsInRTL())
[view setAutoresizingMask:NSViewMaxXMargin | NSViewMinYMargin];
[view setAutoresizingMask:NSViewMinXMargin | NSViewMinYMargin];
[view setHidden:![self shouldShowAvatar]];
// Install the view.
[[[self window] contentView] addSubview:view];
// Called when we get a three-finger swipe.
- (void)swipeWithEvent:(NSEvent*)event {
CGFloat deltaX = [event deltaX];
CGFloat deltaY = [event deltaY];
// Map forwards and backwards to history; left is positive, right is negative.
unsigned int command = 0;
if (deltaX > 0.5) {
command = IDC_BACK;
} else if (deltaX < -0.5) {
command = IDC_FORWARD;
} else if (deltaY > 0.5) {
// TODO(pinkerton): figure out page-up,
} else if (deltaY < -0.5) {
// TODO(pinkerton): figure out page-down,
// Ensure the command is valid first (ExecuteCommand() won't do that) and
// then make it so.
if (chrome::IsCommandEnabled(browser_.get(), command)) {
// Delegate method called when window is resized.
- (void)windowDidResize:(NSNotification*)notification {
[self saveWindowPositionIfNeeded];
// Resize (and possibly move) the status bubble. Note that we may get called
// when the status bubble does not exist.
if (statusBubble_) {
[self updatePermissionBubbleAnchor];
// The FindBar needs to know its own position to properly detect overlaps
// with find results. The position changes whenever the window is resized,
// and |layoutSubviews| computes the FindBar's position.
// TODO: calling |layoutSubviews| here is a waste, find a better way to
// do this.
if ([findBarCocoaController_ isFindBarVisible])
[self layoutSubviews];
// Delegate method called when window did move. (See below for why we don't use
// |-windowWillMove:|, which is called less frequently than |-windowDidMove|
// instead.)
- (void)windowDidMove:(NSNotification*)notification {
[self saveWindowPositionIfNeeded];
// When dragging tabs, the window is repositioned with direct setFrame: calls
// which don't automatically reposition child windows. Most dialogs block tab
// dragging or dismiss on focus loss. Permission bubbles do not, so ensure
// they are anchored correctly.
if ([self isDragSessionActive])
[self updatePermissionBubbleAnchor];
NSWindow* window = [self window];
NSRect windowFrame = [window frame];
NSRect workarea = [[window screen] visibleFrame];
// We reset the window growth state whenever the window is moved out of the
// work area or away (up or down) from the bottom or top of the work area.
// Unfortunately, Cocoa sends |-windowWillMove:| too frequently (including
// when clicking on the title bar to activate), and of course
// |-windowWillMove| is called too early for us to apply our heuristic. (The
// heuristic we use for detecting window movement is that if |windowTopGrowth_
// > 0|, then we should be at the bottom of the work area -- if we're not,
// we've moved. Similarly for the other side.)
if (!NSContainsRect(workarea, windowFrame) ||
(windowTopGrowth_ > 0 && NSMinY(windowFrame) != NSMinY(workarea)) ||
(windowBottomGrowth_ > 0 && NSMaxY(windowFrame) != NSMaxY(workarea)))
[self resetWindowGrowthState];
// Delegate method called when window will be resized; not called for
// |-setFrame:display:|.
- (NSSize)windowWillResize:(NSWindow*)sender toSize:(NSSize)frameSize {
[self resetWindowGrowthState];
return frameSize;
// Delegate method: see |NSWindowDelegate| protocol.
- (id)windowWillReturnFieldEditor:(NSWindow*)sender toObject:(id)obj {
// Ask the toolbar controller if it wants to return a custom field editor
// for the specific object.
return [toolbarController_ customFieldEditorForObject:obj];
// (Needed for |BookmarkBarControllerDelegate| protocol.)
- (void)bookmarkBar:(BookmarkBarController*)controller
toState:(BookmarkBar::State)newState {
[toolbarController_ setDividerOpacity:[self toolbarDividerOpacity]];
[self adjustToolbarAndBookmarkBarForCompression:
[controller getDesiredToolbarHeightCompression]];
// (Needed for |BookmarkBarControllerDelegate| protocol.)
- (void)bookmarkBar:(BookmarkBarController*)controller
toState:(BookmarkBar::State)newState {
[toolbarController_ setDividerOpacity:[self toolbarDividerOpacity]];
[self adjustToolbarAndBookmarkBarForCompression:
[controller getDesiredToolbarHeightCompression]];
// (Private/TestingAPI)
- (void)resetWindowGrowthState {
windowTopGrowth_ = 0;
windowBottomGrowth_ = 0;
isShrinkingFromZoomed_ = NO;
- (NSSize)overflowFrom:(NSRect)source
to:(NSRect)target {
// If |source|'s boundary is outside of |target|'s, set its distance
// to |x|. Note that |source| can overflow to both side, but we
// have nothing to do for such case.
CGFloat x = 0;
if (NSMaxX(target) < NSMaxX(source)) // |source| overflows to right
x = NSMaxX(source) - NSMaxX(target);
else if (NSMinX(source) < NSMinX(target)) // |source| overflows to left
x = NSMinX(source) - NSMinX(target);
// Same as |x| above.
CGFloat y = 0;
if (NSMaxY(target) < NSMaxY(source))
y = NSMaxY(source) - NSMaxY(target);
else if (NSMinY(source) < NSMinY(target))
y = NSMinY(source) - NSMinY(target);
return NSMakeSize(x, y);
// (Private/TestingAPI)
- (NSRect)omniboxPopupAnchorRect {
// Start with toolbar rect.
NSView* toolbarView = [toolbarController_ view];
NSRect anchorRect = [toolbarView frame];
// Adjust to account for height and possible bookmark bar. Compress by 1
// to account for the separator.
anchorRect.origin.y =
NSMaxY(anchorRect) - [toolbarController_ desiredHeightForCompression:1];
// Shift to window base coordinates.
return [[toolbarView superview] convertRect:anchorRect toView:nil];
- (BOOL)isLayoutSubviewsBlocked {
return blockLayoutSubviews_;
- (BOOL)isActiveTabContentsControllerResizeBlocked {
[[tabStripController_ activeTabContentsController] blockFullscreenResize];
- (void)sheetDidEnd:(NSWindow*)sheet
context:(void*)context {
[sheet orderOut:self];
- (FullscreenToolbarController*)fullscreenToolbarController {
return fullscreenToolbarController_.get();
- (void)setFullscreenToolbarController:
(FullscreenToolbarController*)controller {
fullscreenToolbarController_.reset([controller retain]);
- (void)setBrowserWindowTouchBarController:
(BrowserWindowTouchBarController*)touchBarController {
touchBarController_.reset([touchBarController retain]);
- (void)executeExtensionCommand:(const std::string&)extension_id
command:(const extensions::Command&)command {
// Global commands are handled by the ExtensionCommandsGlobalRegistry
// instance.
- (void)setAlertState:(TabAlertState)alertState {
static_cast<BrowserWindowCocoa*>([self browserWindow])
- (TabAlertState)alertState {
return static_cast<BrowserWindowCocoa*>([self browserWindow])->alert_state();
- (BrowserWindowTouchBarController*)browserWindowTouchBarController {
if (!touchBarController_) {
touchBarController_.reset([[BrowserWindowTouchBarController alloc]
window:[self window]]);
return touchBarController_.get();
- (BOOL)isToolbarShowing {
return [fullscreenToolbarController_ mustShowFullscreenToolbar];
@end // @implementation BrowserWindowController
@implementation BrowserWindowController(Fullscreen)
- (void)enterBrowserFullscreen {
[self enterAppKitFullscreen];
- (void)updateUIForTabFullscreen:
(ExclusiveAccessContext::TabFullscreenState)state {
// Only need to update and layout toolbar in fullscreen mode.
if (![self isInAnyFullscreenMode])
state == ExclusiveAccessContext::STATE_EXIT_TAB_FULLSCREEN];
- (void)updateFullscreenExitBubble {
[self showFullscreenExitBubbleIfNecessary];
- (BOOL)exitExtensionFullscreenIfPossible {
if (browser_->exclusive_access_manager()
->IsExtensionFullscreenOrPending()) {
browser_->extension_window_controller()->SetFullscreenMode(NO, GURL());
return YES;
return NO;
- (BOOL)isInImmersiveFullscreen {
return fullscreenWindow_.get() != nil || enteringImmersiveFullscreen_;
- (BOOL)isInAppKitFullscreen {
return !exitingAppKitFullscreen_ &&
(([[self window] styleMask] & NSFullScreenWindowMask) ==
NSFullScreenWindowMask ||
- (BOOL)isInAnyFullscreenMode {
return [self isInImmersiveFullscreen] || [self isInAppKitFullscreen];
- (NSView*)avatarView {
return [avatarButtonController_ view];
- (void)enterWebContentFullscreen {
// HTML5 Fullscreen should only use AppKit fullscreen in 10.10+.
// However, if the user is using multiple monitors and turned off
// "Separate Space in Each Display", use Immersive Fullscreen so
// that the other monitors won't blank out.
display::Screen* screen = display::Screen::GetScreen();
BOOL hasMultipleMonitors = screen && screen->GetNumDisplays() > 1;
if (base::mac::IsAtLeastOS10_10() &&
!(hasMultipleMonitors && ![NSScreen screensHaveSeparateSpaces])) {
[self enterAppKitFullscreen];
} else {
[self enterImmersiveFullscreen];
if (!exclusiveAccessController_->url().is_empty())
[self updateFullscreenExitBubble];
- (void)exitAnyFullscreen {
// TODO(erikchen): Fullscreen modes should stack. Should be able to exit
// Immersive Fullscreen and still be in AppKit Fullscreen.
if ([self isInAppKitFullscreen])
[self exitAppKitFullscreenAsync:NO];
if ([self isInImmersiveFullscreen])
[self exitImmersiveFullscreen];
- (void)exitFullscreenAnimationFinished {
if (appKitDidExitFullscreen_) {
[self windowDidExitFullScreen:nil];
appKitDidExitFullscreen_ = NO;
- (void)resizeFullscreenWindow {
DCHECK([self isInAnyFullscreenMode]);
if (![self isInAnyFullscreenMode])
NSWindow* window = [self window];
[window setFrame:[[window screen] frame] display:YES];
[self layoutSubviews];
- (BOOL)isToolbarVisibilityLockedForOwner:(id)owner {
FullscreenToolbarVisibilityLockController* visibilityController =
[self fullscreenToolbarVisibilityLockController];
return [visibilityController isToolbarVisibilityLockedForOwner:owner];
- (void)lockToolbarVisibilityForOwner:(id)owner withAnimation:(BOOL)animate {
FullscreenToolbarVisibilityLockController* visibilityController =
[self fullscreenToolbarVisibilityLockController];
[visibilityController lockToolbarVisibilityForOwner:owner
- (void)releaseToolbarVisibilityForOwner:(id)owner withAnimation:(BOOL)animate {
FullscreenToolbarVisibilityLockController* visibilityController =
[self fullscreenToolbarVisibilityLockController];
[visibilityController releaseToolbarVisibilityForOwner:owner
- (BOOL)floatingBarHasFocus {
NSResponder* focused = [[self window] firstResponder];
return [focused isKindOfClass:[AutocompleteTextFieldEditor class]];
- (BOOL)isFullscreenForTabContentOrExtension {
FullscreenController* controller =
return controller->IsWindowFullscreenForTabOrPending() ||
- (ExclusiveAccessController*)exclusiveAccessController {
return exclusiveAccessController_.get();
@end // @implementation BrowserWindowController(Fullscreen)
@implementation BrowserWindowController(WindowType)
- (BOOL)supportsWindowFeature:(int)feature {
return browser_->SupportsWindowFeature(
- (BOOL)hasTitleBar {
return [self supportsWindowFeature:Browser::FEATURE_TITLEBAR];
- (BOOL)hasToolbar {
FullscreenToolbarLayout layout =
[[self fullscreenToolbarController] computeLayout];
return layout.toolbarStyle != FullscreenToolbarStyle::TOOLBAR_NONE &&
[self supportsWindowFeature:Browser::FEATURE_TOOLBAR];
- (BOOL)hasLocationBar {
return [self supportsWindowFeature:Browser::FEATURE_LOCATIONBAR];
- (BOOL)supportsBookmarkBar {
return [self supportsWindowFeature:Browser::FEATURE_BOOKMARKBAR];
- (BOOL)isTabbedWindow {
return browser_->is_type_tabbed();
- (NSRect)savedRegularWindowFrame {
return savedRegularWindowFrame_;
- (BOOL)isFullscreenTransitionInProgress {
return enteringAppKitFullscreen_ || exitingAppKitFullscreen_;
@end // @implementation BrowserWindowController(WindowType)