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.
5 #include "chrome/browser/ui/cocoa/panels/panel_window_controller_cocoa.h"
7 #import <Cocoa/Cocoa.h>
9 #include "base/auto_reset.h"
10 #include "base/logging.h"
11 #include "base/mac/bundle_locations.h"
12 #include "base/mac/mac_util.h"
13 #include "base/mac/scoped_nsautorelease_pool.h"
14 #include "base/strings/sys_string_conversions.h"
15 #include "chrome/app/chrome_command_ids.h" // IDC_*
16 #include "chrome/browser/chrome_browser_application_mac.h"
17 #include "chrome/browser/profiles/profile.h"
18 #import "chrome/browser/ui/cocoa/browser_command_executor.h"
19 #import "chrome/browser/ui/cocoa/browser_window_utils.h"
20 #import "chrome/browser/ui/cocoa/panels/mouse_drag_controller.h"
21 #import "chrome/browser/ui/cocoa/panels/panel_cocoa.h"
22 #import "chrome/browser/ui/cocoa/panels/panel_titlebar_view_cocoa.h"
23 #import "chrome/browser/ui/cocoa/panels/panel_utils_cocoa.h"
24 #import "chrome/browser/ui/cocoa/sprite_view.h"
25 #import "chrome/browser/ui/cocoa/tab_contents/favicon_util_mac.h"
26 #import "chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.h"
27 #include "chrome/browser/ui/panels/panel_bounds_animation.h"
28 #include "chrome/browser/ui/panels/panel_collection.h"
29 #include "chrome/browser/ui/panels/panel_constants.h"
30 #include "chrome/browser/ui/panels/panel_manager.h"
31 #include "chrome/browser/ui/panels/stacked_panel_collection.h"
32 #include "chrome/browser/ui/tabs/tab_strip_model.h"
33 #include "chrome/browser/ui/toolbar/encoding_menu_controller.h"
34 #include "content/public/browser/render_widget_host_view.h"
35 #include "content/public/browser/web_contents.h"
36 #include "ui/base/resource/resource_bundle.h"
37 #include "ui/gfx/image/image.h"
38 #include "ui/resources/grit/ui_resources.h"
40 using content::WebContents;
42 const int kMinimumWindowSize = 1;
43 const double kBoundsAnimationSpeedPixelsPerSecond = 1000;
44 const double kBoundsAnimationMaxDurationSeconds = 0.18;
46 // Edge thickness to trigger user resizing via system, in screen pixels.
47 const double kWidthOfMouseResizeArea = 15.0;
49 @interface PanelWindowControllerCocoa (PanelsCanBecomeKey)
50 // Internal helper method for extracting the total number of panel windows
51 // from the panel manager. Used to decide if panel can become the key window.
55 @implementation PanelWindowCocoaImpl
56 // The panels cannot be reduced to 3-px windows on the edge of the screen
57 // active area (above Dock). Default constraining logic makes at least a height
58 // of the titlebar visible, so the user could still grab it. We do 'restore'
59 // differently, and minimize panels to 3 px. Hence the need to override the
60 // constraining logic.
61 - (NSRect)constrainFrameRect:(NSRect)frameRect toScreen:(NSScreen *)screen {
65 // Prevent panel window from becoming key - for example when it is minimized.
66 // Panel windows use a higher priority NSWindowLevel to ensure they are always
67 // visible, causing the OS to prefer panel windows when selecting a window
68 // to make the key window. To counter this preference, we override
69 // -[NSWindow:canBecomeKeyWindow] to restrict when the panel can become the
70 // key window to a limited set of scenarios, such as when cycling through
71 // windows, when panels are the only remaining windows, when an event
72 // triggers window activation, etc. The panel may also be prevented from
73 // becoming the key window, regardless of the above scenarios, such as when
74 // a panel is minimized.
75 - (BOOL)canBecomeKeyWindow {
76 // Give precedence to controller preventing activation of the window.
77 PanelWindowControllerCocoa* controller =
78 base::mac::ObjCCast<PanelWindowControllerCocoa>([self windowController]);
79 if (![controller canBecomeKeyWindow])
82 BrowserCrApplication* app = base::mac::ObjCCast<BrowserCrApplication>(
83 [BrowserCrApplication sharedApplication]);
85 // A Panel window can become the key window only in limited scenarios.
86 // This prevents the system from always preferring a Panel window due
87 // to its higher priority NSWindowLevel when selecting a window to make key.
88 return ([app isHandlingSendEvent] && [[app currentEvent] window] == self) ||
89 [controller activationRequestedByPanel] ||
90 [app isCyclingWindows] ||
91 [app previousKeyWindow] == self ||
92 [[app windows] count] == static_cast<NSUInteger>([controller numPanels]);
95 - (void)performMiniaturize:(id)sender {
96 [[self windowController] minimizeButtonClicked:0];
99 - (void)mouseMoved:(NSEvent*)event {
100 // Cocoa does not support letting the application determine the edges that
101 // can trigger the user resizing. To work around this, we track the mouse
102 // location. When it is close to the edge/corner where the user resizing
103 // is not desired, we force the min and max size of the window to be same
104 // as current window size. For all other cases, we restore the min and max
106 PanelWindowControllerCocoa* controller =
107 base::mac::ObjCCast<PanelWindowControllerCocoa>([self windowController]);
108 NSRect frame = [self frame];
109 if ([controller canResizeByMouseAtCurrentLocation]) {
110 // Mac window server limits window sizes to 10000.
111 NSSize maxSize = NSMakeSize(10000, 10000);
113 // If the user is resizing a stacked panel by its bottom edge, make sure its
114 // height cannot grow more than what the panel below it could offer. This is
115 // because growing a stacked panel by y amount will shrink the panel below
116 // it by same amount and we do not want the panel below it being shrunk to
117 // be smaller than the titlebar.
118 Panel* panel = [controller panel];
119 NSPoint point = [NSEvent mouseLocation];
120 if (point.y < NSMinY(frame) + kWidthOfMouseResizeArea && panel->stack()) {
121 Panel* belowPanel = panel->stack()->GetPanelBelow(panel);
122 if (belowPanel && !belowPanel->IsMinimized()) {
123 maxSize.height = panel->GetBounds().height() +
124 belowPanel->GetBounds().height() - panel::kTitlebarHeight;
128 // Enable the user-resizing by setting both min and max size to the right
130 [self setMinSize:NSMakeSize(panel::kPanelMinWidth,
131 panel::kPanelMinHeight)];
132 [self setMaxSize:maxSize];
134 // Disable the user-resizing by setting both min and max size to be same as
135 // current window size.
136 [self setMinSize:frame.size];
137 [self setMaxSize:frame.size];
140 [super mouseMoved:event];
144 // ChromeEventProcessingWindow expects its controller to implement the
145 // BrowserCommandExecutor protocol.
146 @interface PanelWindowControllerCocoa (InternalAPI) <BrowserCommandExecutor>
148 // BrowserCommandExecutor methods.
149 - (void)executeCommand:(int)command;
153 @implementation PanelWindowControllerCocoa (InternalAPI)
155 // This gets called whenever a browser-specific keyboard shortcut is performed
156 // in the Panel window. We simply swallow all those events.
157 - (void)executeCommand:(int)command {}
161 @implementation PanelWindowControllerCocoa
163 - (id)initWithPanel:(PanelCocoa*)window {
165 [base::mac::FrameworkBundle() pathForResource:@"Panel" ofType:@"nib"];
166 if ((self = [super initWithWindowNibPath:nibpath owner:self])) {
167 windowShim_.reset(window);
168 animateOnBoundsChange_ = YES;
169 canBecomeKeyWindow_ = YES;
170 activationRequestedByPanel_ = NO;
176 return windowShim_->panel();
179 - (void)awakeFromNib {
180 NSWindow* window = [self window];
183 DCHECK(titlebar_view_);
184 DCHECK_EQ(self, [window delegate]);
186 [self updateWindowLevel];
188 [self updateWindowCollectionBehavior];
190 [titlebar_view_ attach];
192 // Set initial size of the window to match the size of the panel to give
193 // the renderer the proper size to work with earlier, avoiding a resize
194 // after the window is revealed.
195 gfx::Rect panelBounds = windowShim_->panel()->GetBounds();
196 NSRect frame = [window frame];
197 frame.size.width = panelBounds.width();
198 frame.size.height = panelBounds.height();
199 [window setFrame:frame display:NO];
201 // MacOS will turn the user-resizing to the user-dragging if the direction of
202 // the dragging is orthogonal to the direction of the arrow cursor. We do not
203 // want this since it will bypass our dragging logic. The panel window is
204 // still draggable because we track and handle the dragging in our custom way.
205 [[self window] setMovable:NO];
207 [self updateTrackingArea];
210 - (void)updateWebContentsViewFrame {
211 content::WebContents* webContents = windowShim_->panel()->GetWebContents();
215 // Compute the size of the web contents view. Don't assume it's similar to the
216 // size of the contentView, because the contentView is managed by the Cocoa
217 // to be (window - standard titlebar), while we have taller custom titlebar
218 // instead. In coordinate system of window's contentView.
219 NSRect contentFrame = [self contentRectForFrameRect:[[self window] frame]];
220 contentFrame.origin = NSZeroPoint;
222 NSView* contentView = webContents->GetNativeView();
223 if (!NSEqualRects([contentView frame], contentFrame))
224 [contentView setFrame:contentFrame];
227 - (void)disableWebContentsViewAutosizing {
228 [[[self window] contentView] setAutoresizesSubviews:NO];
231 - (void)enableWebContentsViewAutosizing {
232 [self updateWebContentsViewFrame];
233 [[[self window] contentView] setAutoresizesSubviews:YES];
236 - (void)revealAnimatedWithFrame:(const NSRect&)frame {
237 NSWindow* window = [self window]; // This ensures loading the nib.
239 // Disable subview resizing while resizing the window to avoid renderer
240 // resizes during intermediate stages of animation.
241 [self disableWebContentsViewAutosizing];
243 // We grow the window from the bottom up to produce a 'reveal' animation.
244 NSRect startFrame = NSMakeRect(NSMinX(frame), NSMinY(frame),
245 NSWidth(frame), kMinimumWindowSize);
246 [window setFrame:startFrame display:NO animate:NO];
247 // Shows the window without making it key, on top of its layer, even if
248 // Chromium is not an active app.
249 [window orderFrontRegardless];
250 // TODO(dcheng): Temporary hack to work around the fact that
251 // orderFrontRegardless causes us to become the first responder. The usual
252 // Chrome assumption is that becoming the first responder = you have focus, so
253 // we always deactivate the controls here. If we're created as an active
254 // panel, we'll get a NSWindowDidBecomeKeyNotification and reactivate the web
255 // view properly. See crbug.com/97831 for more details.
256 WebContents* web_contents = windowShim_->panel()->GetWebContents();
257 // RWHV may be NULL in unit tests.
258 if (web_contents && web_contents->GetRenderWidgetHostView())
259 web_contents->GetRenderWidgetHostView()->SetActive(false);
261 // This will re-enable the content resizing after it finishes.
262 [self setPanelFrame:frame animate:YES];
265 - (void)updateTitleBar {
266 NSString* newTitle = base::SysUTF16ToNSString(
267 windowShim_->panel()->GetWindowTitle());
268 pendingWindowTitle_.reset(
269 [BrowserWindowUtils scheduleReplaceOldTitle:pendingWindowTitle_.get()
270 withNewTitle:newTitle
271 forWindow:[self window]]);
272 [titlebar_view_ setTitle:newTitle];
277 base::scoped_nsobject<NSView> iconView;
278 if (throbberShouldSpin_) {
279 // If the throbber is spinning now, no need to replace it.
280 if ([[titlebar_view_ icon] isKindOfClass:[SpriteView class]])
284 ResourceBundle::GetSharedInstance().GetNativeImageNamed(
285 IDR_THROBBER).ToNSImage();
286 SpriteView* spriteView = [[SpriteView alloc] init];
287 [spriteView setImage:iconImage];
288 iconView.reset(spriteView);
290 const gfx::Image& page_icon = windowShim_->panel()->GetCurrentPageIcon();
291 ResourceBundle& rb = ResourceBundle::GetSharedInstance();
292 NSRect iconFrame = [[titlebar_view_ icon] frame];
293 NSImage* iconImage = page_icon.IsEmpty() ?
294 rb.GetNativeImageNamed(IDR_DEFAULT_FAVICON).ToNSImage() :
295 page_icon.ToNSImage();
296 NSImageView* imageView = [[NSImageView alloc] initWithFrame:iconFrame];
297 [imageView setImage:iconImage];
298 iconView.reset(imageView);
300 [titlebar_view_ setIcon:iconView];
303 - (void)updateThrobber:(BOOL)shouldSpin {
304 if (throbberShouldSpin_ == shouldSpin)
306 throbberShouldSpin_ = shouldSpin;
308 // If the titlebar view has not been attached, bail out.
315 - (void)updateTitleBarMinimizeRestoreButtonVisibility {
316 Panel* panel = windowShim_->panel();
317 [titlebar_view_ setMinimizeButtonVisibility:panel->CanShowMinimizeButton()];
318 [titlebar_view_ setRestoreButtonVisibility:panel->CanShowRestoreButton()];
321 - (void)webContentsInserted:(WebContents*)contents {
322 NSView* view = contents->GetNativeView();
323 [[[self window] contentView] addSubview:view];
324 [view setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
326 [self enableWebContentsViewAutosizing];
329 - (void)webContentsDetached:(WebContents*)contents {
330 [contents->GetNativeView() removeFromSuperview];
333 - (PanelTitlebarViewCocoa*)titlebarView {
334 return titlebar_view_;
337 // Called to validate menu and toolbar items when this window is key. All the
338 // items we care about have been set with the |-commandDispatch:|
339 // action and a target of FirstResponder in IB.
340 // Delegate to the NSApp delegate if Panel does not care about the command or
341 // shortcut, to make sure the global items in Chrome main app menu still work.
342 - (BOOL)validateUserInterfaceItem:(id<NSValidatedUserInterfaceItem>)item {
343 if ([item action] == @selector(commandDispatch:)) {
344 NSInteger tag = [item tag];
345 CommandUpdater* command_updater = windowShim_->panel()->command_updater();
346 if (command_updater->SupportsCommand(tag))
347 return command_updater->IsCommandEnabled(tag);
349 return [[NSApp delegate] validateUserInterfaceItem:item];
354 // Called when the user picks a menu or toolbar item when this window is key.
355 // Calls through to the panel object to execute the command or delegates up.
356 - (void)commandDispatch:(id)sender {
358 NSInteger tag = [sender tag];
359 CommandUpdater* command_updater = windowShim_->panel()->command_updater();
360 if (command_updater->SupportsCommand(tag))
361 windowShim_->panel()->ExecuteCommandIfEnabled(tag);
363 [[NSApp delegate] commandDispatch:sender];
366 // Handler for the custom Close button.
368 windowShim_->panel()->Close();
371 // Handler for the custom Minimize button.
372 - (void)minimizeButtonClicked:(int)modifierFlags {
373 Panel* panel = windowShim_->panel();
374 panel->OnMinimizeButtonClicked((modifierFlags & NSShiftKeyMask) ?
375 panel::APPLY_TO_ALL : panel::NO_MODIFIER);
378 // Handler for the custom Restore button.
379 - (void)restoreButtonClicked:(int)modifierFlags {
380 Panel* panel = windowShim_->panel();
381 panel->OnRestoreButtonClicked((modifierFlags & NSShiftKeyMask) ?
382 panel::APPLY_TO_ALL : panel::NO_MODIFIER);
385 // Called when the user wants to close the panel or from the shutdown process.
386 // The Panel object is in control of whether or not we're allowed to close. It
387 // may defer closing due to several states, such as onbeforeUnload handlers
388 // needing to be fired. If closing is deferred, the Panel will handle the
389 // processing required to get us to the closing state and (by watching for
390 // the web content going away) will again call to close the window when it's
392 - (BOOL)windowShouldClose:(id)sender {
393 Panel* panel = windowShim_->panel();
394 // Give beforeunload handlers the chance to cancel the close before we hide
396 if (!panel->ShouldCloseWindow())
399 if (panel->GetWebContents()) {
400 // Terminate any playing animations.
401 [self terminateBoundsAnimation];
402 animateOnBoundsChange_ = NO;
403 // Make panel close the web content, allowing the renderer to shut down
404 // and call us back again.
405 panel->OnWindowClosing();
409 // No web content; it's ok to close the window.
413 // When windowShouldClose returns YES (or if controller receives direct 'close'
414 // signal), window will be unconditionally closed. Clean up.
415 - (void)windowWillClose:(NSNotification*)notification {
416 DCHECK(!windowShim_->panel()->GetWebContents());
417 // Avoid callbacks from a nonblocking animation in progress, if any.
418 [self terminateBoundsAnimation];
419 windowShim_->DidCloseNativeWindow();
420 // Call |-autorelease| after a zero-length delay to avoid deadlock from
421 // code in the current run loop that waits on PANEL_CLOSED notification.
422 // The notification is sent when this object is freed, but this object
423 // cannot be freed until the current run loop completes.
424 [self performSelector:@selector(autorelease)
429 - (void)startDrag:(NSPoint)mouseLocation {
430 // Convert from Cocoa's screen coordinates to platform-indepedent screen
431 // coordinates because PanelManager method takes platform-indepedent screen
433 windowShim_->panel()->manager()->StartDragging(
434 windowShim_->panel(),
435 cocoa_utils::ConvertPointFromCocoaCoordinates(mouseLocation));
438 - (void)endDrag:(BOOL)cancelled {
439 windowShim_->panel()->manager()->EndDragging(cancelled);
442 - (void)drag:(NSPoint)mouseLocation {
443 // Convert from Cocoa's screen coordinates to platform-indepedent screen
444 // coordinates because PanelManager method takes platform-indepedent screen
446 windowShim_->panel()->manager()->Drag(
447 cocoa_utils::ConvertPointFromCocoaCoordinates(mouseLocation));
450 - (void)setPanelFrame:(NSRect)frame
451 animate:(BOOL)animate {
452 BOOL jumpToDestination = (!animateOnBoundsChange_ || !animate);
454 // If no animation is in progress, apply bounds change instantly.
455 if (jumpToDestination && ![self isAnimatingBounds]) {
456 [[self window] setFrame:frame display:YES animate:NO];
460 NSDictionary *windowResize = [NSDictionary dictionaryWithObjectsAndKeys:
461 [self window], NSViewAnimationTargetKey,
462 [NSValue valueWithRect:frame], NSViewAnimationEndFrameKey, nil];
463 NSArray *animations = [NSArray arrayWithObjects:windowResize, nil];
465 // If an animation is in progress, update the animation with new target
466 // bounds. Also, set the destination frame bounds to the new value.
467 if (jumpToDestination && [self isAnimatingBounds]) {
468 [boundsAnimation_ setViewAnimations:animations];
469 [[self window] setFrame:frame display:YES animate:NO];
473 // Will be enabled back in animationDidEnd callback.
474 [self disableWebContentsViewAutosizing];
476 // Terminate previous animation, if it is still playing.
477 [self terminateBoundsAnimation];
480 [[NSViewAnimation alloc] initWithViewAnimations:animations];
481 [boundsAnimation_ setDelegate:self];
483 NSRect currentFrame = [[self window] frame];
484 // Compute duration. We use constant speed of animation, however if the change
485 // is too large, we clip the duration (effectively increasing speed) to
486 // limit total duration of animation. This makes 'small' transitions fast.
487 // 'distance' is the max travel between 4 potentially traveling corners.
488 double distanceX = std::max(std::abs(NSMinX(currentFrame) - NSMinX(frame)),
489 std::abs(NSMaxX(currentFrame) - NSMaxX(frame)));
490 double distanceY = std::max(std::abs(NSMinY(currentFrame) - NSMinY(frame)),
491 std::abs(NSMaxY(currentFrame) - NSMaxY(frame)));
492 double distance = std::max(distanceX, distanceY);
493 double duration = std::min(distance / kBoundsAnimationSpeedPixelsPerSecond,
494 kBoundsAnimationMaxDurationSeconds);
495 // Detect animation that happens when expansion state is set to MINIMIZED
496 // and there is relatively big portion of the panel to hide from view.
497 // Initialize animation differently in this case, using fast-pause-slow
498 // method, see below for more details.
500 windowShim_->panel()->expansion_state() == Panel::MINIMIZED) {
501 animationStopToShowTitlebarOnly_ = 1.0 -
502 (windowShim_->panel()->TitleOnlyHeight() - NSHeight(frame)) / distanceY;
503 if (animationStopToShowTitlebarOnly_ > 0.7) { // Relatively big movement.
504 playingMinimizeAnimation_ = YES;
508 [boundsAnimation_ setDuration: PanelManager::AdjustTimeInterval(duration)];
509 [boundsAnimation_ setFrameRate:0.0];
510 [boundsAnimation_ setAnimationBlockingMode: NSAnimationNonblocking];
511 [boundsAnimation_ startAnimation];
514 - (float)animation:(NSAnimation*)animation
515 valueForProgress:(NSAnimationProgress)progress {
516 return PanelBoundsAnimation::ComputeAnimationValue(
517 progress, playingMinimizeAnimation_, animationStopToShowTitlebarOnly_);
520 - (void)cleanupAfterAnimation {
521 playingMinimizeAnimation_ = NO;
522 if (!windowShim_->panel()->IsMinimized())
523 [self enableWebContentsViewAutosizing];
526 - (void)animationDidEnd:(NSAnimation*)animation {
527 [self cleanupAfterAnimation];
529 // Only invoke this callback from animationDidEnd, since animationDidStop can
530 // be called when we interrupt/restart animation which is in progress.
531 // We only need this notification when animation indeed finished moving
533 Panel* panel = windowShim_->panel();
534 panel->manager()->OnPanelAnimationEnded(panel);
537 - (void)animationDidStop:(NSAnimation*)animation {
538 [self cleanupAfterAnimation];
541 - (void)terminateBoundsAnimation {
542 if (!boundsAnimation_)
544 [boundsAnimation_ stopAnimation];
545 [boundsAnimation_ setDelegate:nil];
546 [boundsAnimation_ release];
547 boundsAnimation_ = nil;
550 - (BOOL)isAnimatingBounds {
551 return boundsAnimation_ && [boundsAnimation_ isAnimating];
554 - (void)onTitlebarMouseClicked:(int)modifierFlags {
555 Panel* panel = windowShim_->panel();
556 panel->OnTitlebarClicked((modifierFlags & NSShiftKeyMask) ?
557 panel::APPLY_TO_ALL : panel::NO_MODIFIER);
560 - (void)onTitlebarDoubleClicked:(int)modifierFlags {
561 // Double-clicking is only allowed to minimize docked panels.
562 Panel* panel = windowShim_->panel();
563 if (panel->collection()->type() != PanelCollection::DOCKED ||
564 panel->IsMinimized())
566 [self minimizeButtonClicked:modifierFlags];
569 - (int)titlebarHeightInScreenCoordinates {
570 NSView* titlebar = [self titlebarView];
571 return NSHeight([titlebar convertRect:[titlebar bounds] toView:nil]);
574 // TODO(dcheng): These two selectors are almost copy-and-paste from
575 // BrowserWindowController. Figure out the appropriate way of code sharing,
576 // whether it's refactoring more things into BrowserWindowUtils or making a
577 // common base controller for browser windows.
578 - (void)windowDidBecomeKey:(NSNotification*)notification {
579 // We need to activate the controls (in the "WebView"). To do this, get the
580 // selected WebContents's RenderWidgetHostView and tell it to activate.
581 if (WebContents* contents = windowShim_->panel()->GetWebContents()) {
582 if (content::RenderWidgetHostView* rwhv =
583 contents->GetRenderWidgetHostView())
584 rwhv->SetActive(true);
587 windowShim_->panel()->OnActiveStateChanged(true);
589 // Make the window user-resizable when it gains the focus.
590 [[self window] setStyleMask:
591 [[self window] styleMask] | NSResizableWindowMask];
594 - (void)windowDidResignKey:(NSNotification*)notification {
595 // If our app is still active and we're still the key window, ignore this
596 // message, since it just means that a menu extra (on the "system status bar")
597 // was activated; we'll get another |-windowDidResignKey| if we ever really
598 // lose key window status.
599 if ([NSApp isActive] && ([NSApp keyWindow] == [self window]))
602 [self onWindowDidResignKey];
605 - (void)windowWillStartLiveResize:(NSNotification*)notification {
606 // Check if the user-resizing is allowed for the triggering edge/corner.
607 // This is an extra safe guard because we are not able to track the mouse
608 // movement outside the window and Cocoa could trigger the user-resizing
609 // when the mouse moves a bit outside the edge/corner.
610 if (![self canResizeByMouseAtCurrentLocation])
613 windowShim_->panel()->OnPanelStartUserResizing();
616 - (void)windowDidEndLiveResize:(NSNotification*)notification {
621 Panel* panel = windowShim_->panel();
622 panel->OnPanelEndUserResizing();
624 gfx::Rect newBounds =
625 cocoa_utils::ConvertRectFromCocoaCoordinates([[self window] frame]);
626 if (windowShim_->panel()->GetBounds() == newBounds)
628 windowShim_->set_cached_bounds_directly(newBounds);
630 panel->IncreaseMaxSize(newBounds.size());
631 panel->set_full_size(newBounds.size());
633 panel->collection()->RefreshLayout();
636 - (NSSize)windowWillResize:(NSWindow*)sender toSize:(NSSize)newSize {
637 // As an extra safe guard, we avoid the user resizing if it is deemed not to
638 // be allowed (see comment in windowWillStartLiveResize).
639 if ([[self window] inLiveResize] && !userResizing_)
640 return [[self window] frame].size;
644 - (void)windowDidResize:(NSNotification*)notification {
645 Panel* panel = windowShim_->panel();
647 panel->collection()->OnPanelResizedByMouse(
649 cocoa_utils::ConvertRectFromCocoaCoordinates([[self window] frame]));
652 [self updateTrackingArea];
654 if (![self isAnimatingBounds] ||
655 panel->collection()->type() != PanelCollection::DOCKED)
658 // Remove the web contents view from the view hierarchy when the panel is not
659 // taller than the titlebar. Put it back when the panel grows taller than
660 // the titlebar. Note that RenderWidgetHostViewMac works for the case that
661 // the web contents view does not exist in the view hierarchy (i.e. the tab
662 // is not the main one), but it does not work well, like causing occasional
663 // crashes (http://crbug.com/265932), if the web contents view is made hidden.
665 // This is needed when the docked panels are being animated. When the
666 // animation starts, the contents view autosizing is disabled. After the
667 // animation ends, the contents view autosizing is reenabled and the frame
668 // of contents view is updated. Thus it is likely that the contents view will
669 // overlap with the titlebar view when the panel shrinks to be very small.
670 // The implementation of the web contents view assumes that it will never
671 // overlap with another view in order to paint the web contents view directly.
672 content::WebContents* webContents = panel->GetWebContents();
675 NSView* contentView = webContents->GetNativeView();
676 if (NSHeight([self contentRectForFrameRect:[[self window] frame]]) <= 0) {
677 // No need to retain the view before it is removed from its superview
678 // because WebContentsView keeps a reference to this view.
679 if ([contentView superview])
680 [contentView removeFromSuperview];
682 if (![contentView superview]) {
683 [[[self window] contentView] addSubview:contentView];
685 // When the web contents view is put back, we need to tell its render
686 // widget host view to accept focus.
687 content::RenderWidgetHostView* rwhv =
688 webContents->GetRenderWidgetHostView();
690 [[self window] makeFirstResponder:rwhv->GetNativeView()];
691 rwhv->SetActive([[self window] isMainWindow]);
698 // Activate the window. -|windowDidBecomeKey:| will be called when
699 // window becomes active.
700 base::AutoReset<BOOL> pin(&activationRequestedByPanel_, true);
701 [BrowserWindowUtils activateWindowForController:self];
705 if (![[self window] isMainWindow])
710 // Cocoa does not support deactivating a NSWindow explicitly. To work around
711 // this, we call orderOut and orderFront to force the window to lose its key
714 // Before doing this, we need to disable screen updates to prevent flickering.
715 NSDisableScreenUpdates();
717 // If a panel is in stacked mode, the window has a background parent window.
718 // We need to detach it from its parent window before applying the ordering
719 // change and then put it back because otherwise tha background parent window
721 NSWindow* parentWindow = [[self window] parentWindow];
723 [parentWindow removeChildWindow:[self window]];
725 [[self window] orderOut:nil];
726 [[self window] orderFront:nil];
729 [parentWindow addChildWindow:[self window] ordered:NSWindowAbove];
731 NSEnableScreenUpdates();
733 // Though the above workaround causes the window to lose its key window state,
734 // it does not trigger the system to call windowDidResignKey.
735 [self onWindowDidResignKey];
738 - (void)onWindowDidResignKey {
739 // We need to deactivate the controls (in the "WebView"). To do this, get the
740 // selected WebContents's RenderWidgetHostView and tell it to deactivate.
741 if (WebContents* contents = windowShim_->panel()->GetWebContents()) {
742 if (content::RenderWidgetHostView* rwhv =
743 contents->GetRenderWidgetHostView())
744 rwhv->SetActive(false);
747 windowShim_->panel()->OnActiveStateChanged(false);
749 // Make the window not user-resizable when it loses the focus. This is to
750 // solve the problem that the bottom edge of the active panel does not
751 // trigger the user-resizing if this panel stacks with another inactive
752 // panel at the bottom.
753 [[self window] setStyleMask:
754 [[self window] styleMask] & ~NSResizableWindowMask];
757 - (void)preventBecomingKeyWindow:(BOOL)prevent {
758 canBecomeKeyWindow_ = !prevent;
761 - (void)fullScreenModeChanged:(bool)isFullScreen {
762 [self updateWindowLevel];
764 // If the panel is not always on top, its z-order should not be affected if
765 // some other window enters fullscreen mode.
766 if (!windowShim_->panel()->IsAlwaysOnTop())
769 // The full-screen window is in normal level and changing the panel window
770 // to same normal level will not move it below the full-screen window. Thus
771 // we need to reorder the panel window.
773 [[self window] orderOut:nil];
775 [[self window] orderFrontRegardless];
778 - (BOOL)canBecomeKeyWindow {
779 // Panel can only gain focus if it is expanded. Minimized panels do not
780 // participate in Cmd-~ rotation.
781 // TODO(dimich): If it will be ever desired to expand/focus the Panel on
782 // keyboard navigation or via main menu, the care should be taken to avoid
783 // cases when minimized Panel is getting keyboard input, invisibly.
784 return canBecomeKeyWindow_;
788 return windowShim_->panel()->manager()->num_panels();
791 - (BOOL)activationRequestedByPanel {
792 return activationRequestedByPanel_;
795 - (void)updateWindowLevel {
796 [self updateWindowLevel:windowShim_->panel()->IsMinimized()];
799 - (void)updateWindowLevel:(BOOL)panelIsMinimized {
800 if (![self isWindowLoaded])
802 Panel* panel = windowShim_->panel();
803 if (!panel->IsAlwaysOnTop()) {
804 [[self window] setLevel:NSNormalWindowLevel];
807 // If we simply use NSStatusWindowLevel (25) for all docked panel windows,
808 // IME composition windows for things like CJK languages appear behind panels.
809 // Pre 10.7, IME composition windows have a window level of 19, which is
810 // lower than the dock at level 20. Since we want panels to appear on top of
811 // the dock, it is impossible to enforce an ordering where IME > panel > dock,
813 // On 10.7, IME composition windows and the dock both live at level 20, so we
814 // use the same window level for panels. Since newly created windows appear at
815 // the top of their window level, panels are typically on top of the dock, and
816 // the IME composition window correctly draws over the panel.
817 // An autohide dock causes problems though: since it's constantly being
818 // revealed, it ends up drawing on top of other windows at the same level.
819 // While this is OK for expanded panels, it makes minimized panels impossible
820 // to activate. As a result, we still use NSStatusWindowLevel for minimized
821 // panels, since it's impossible to compose IME text in them anyway.
822 if (panelIsMinimized) {
823 [[self window] setLevel:NSStatusWindowLevel];
826 [[self window] setLevel:NSDockWindowLevel];
829 - (void)updateWindowCollectionBehavior {
830 if (![self isWindowLoaded])
832 NSWindowCollectionBehavior collectionBehavior =
833 NSWindowCollectionBehaviorParticipatesInCycle;
834 if (windowShim_->panel()->IsAlwaysOnTop())
835 collectionBehavior |= NSWindowCollectionBehaviorCanJoinAllSpaces;
836 [[self window] setCollectionBehavior:collectionBehavior];
839 - (void)updateTrackingArea {
840 NSView* superview = [[[self window] contentView] superview];
842 if (trackingArea_.get())
843 [superview removeTrackingArea:trackingArea_.get()];
846 [[CrTrackingArea alloc] initWithRect:[superview bounds]
847 options:NSTrackingInVisibleRect |
848 NSTrackingMouseMoved |
849 NSTrackingActiveInKeyWindow
852 [superview addTrackingArea:trackingArea_.get()];
855 - (void)showShadow:(BOOL)show {
856 if (![self isWindowLoaded])
858 [[self window] setHasShadow:show];
861 - (void)miniaturize {
862 [[self window] miniaturize:nil];
865 - (BOOL)isMiniaturized {
866 return [[self window] isMiniaturized];
869 - (BOOL)canResizeByMouseAtCurrentLocation {
870 panel::Resizability resizability = windowShim_->panel()->CanResizeByMouse();
871 NSRect frame = [[self window] frame];
872 NSPoint point = [NSEvent mouseLocation];
874 if (point.y < NSMinY(frame) + kWidthOfMouseResizeArea) {
875 if (point.x < NSMinX(frame) + kWidthOfMouseResizeArea &&
876 (resizability & panel::RESIZABLE_BOTTOM_LEFT) == 0) {
879 if (point.x > NSMaxX(frame) - kWidthOfMouseResizeArea &&
880 (resizability & panel::RESIZABLE_BOTTOM_RIGHT) == 0) {
883 if ((resizability & panel::RESIZABLE_BOTTOM) == 0)
885 } else if (point.y > NSMaxY(frame) - kWidthOfMouseResizeArea) {
886 if (point.x < NSMinX(frame) + kWidthOfMouseResizeArea &&
887 (resizability & panel::RESIZABLE_TOP_LEFT) == 0) {
890 if (point.x > NSMaxX(frame) - kWidthOfMouseResizeArea &&
891 (resizability & panel::RESIZABLE_TOP_RIGHT) == 0) {
894 if ((resizability & panel::RESIZABLE_TOP) == 0)
897 if (point.x < NSMinX(frame) + kWidthOfMouseResizeArea &&
898 (resizability & panel::RESIZABLE_LEFT) == 0) {
901 if (point.x > NSMaxX(frame) - kWidthOfMouseResizeArea &&
902 (resizability & panel::RESIZABLE_RIGHT) == 0) {
909 // We have custom implementation of these because our titlebar height is custom
910 // and does not match the standard one.
911 - (NSRect)frameRectForContentRect:(NSRect)contentRect {
912 // contentRect is in contentView coord system. We should add a titlebar on top
913 // and then convert to the windows coord system.
914 contentRect.size.height += panel::kTitlebarHeight;
915 NSRect frameRect = [[[self window] contentView] convertRect:contentRect
920 - (NSRect)contentRectForFrameRect:(NSRect)frameRect {
921 NSRect contentRect = [[[self window] contentView] convertRect:frameRect
923 contentRect.size.height -= panel::kTitlebarHeight;
924 if (contentRect.size.height < 0)
925 contentRect.size.height = 0;