1 // Copyright 2014 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 #import "ui/views/cocoa/bridged_native_widget.h"
7 #import <objc/runtime.h>
9 #include "base/logging.h"
10 #include "base/mac/mac_util.h"
11 #import "base/mac/sdk_forward_declarations.h"
12 #include "base/thread_task_runner_handle.h"
13 #import "ui/base/cocoa/constrained_window/constrained_window_animation.h"
14 #include "ui/base/ime/input_method.h"
15 #include "ui/base/ime/input_method_factory.h"
16 #include "ui/base/ui_base_switches_util.h"
17 #include "ui/gfx/display.h"
18 #include "ui/gfx/geometry/dip_util.h"
19 #import "ui/gfx/mac/coordinate_conversion.h"
20 #import "ui/gfx/mac/nswindow_frame_controls.h"
21 #include "ui/gfx/screen.h"
22 #import "ui/views/cocoa/bridged_content_view.h"
23 #import "ui/views/cocoa/cocoa_mouse_capture.h"
24 #include "ui/views/cocoa/tooltip_manager_mac.h"
25 #import "ui/views/cocoa/views_nswindow_delegate.h"
26 #import "ui/views/cocoa/widget_owner_nswindow_adapter.h"
27 #include "ui/views/ime/input_method_bridge.h"
28 #include "ui/views/ime/null_input_method.h"
29 #include "ui/views/view.h"
30 #include "ui/views/views_delegate.h"
31 #include "ui/views/widget/native_widget_mac.h"
32 #include "ui/views/widget/widget.h"
33 #include "ui/views/widget/widget_aura_utils.h"
34 #include "ui/views/widget/widget_delegate.h"
36 // The NSView that hosts the composited CALayer drawing the UI. It fills the
37 // window but is not hittable so that accessibility hit tests always go to the
38 // BridgedContentView.
39 @interface ViewsCompositorSuperview : NSView
42 @implementation ViewsCompositorSuperview
43 - (NSView*)hitTest:(NSPoint)aPoint {
50 int kWindowPropertiesKey;
52 float GetDeviceScaleFactorFromView(NSView* view) {
53 gfx::Display display =
54 gfx::Screen::GetScreenFor(view)->GetDisplayNearestWindow(view);
55 DCHECK(display.is_valid());
56 return display.device_scale_factor();
59 // Returns true if bounds passed to window in SetBounds should be treated as
60 // though they are in screen coordinates.
61 bool PositionWindowInScreenCoordinates(views::Widget* widget,
62 views::Widget::InitParams::Type type) {
63 // Replicate the logic in desktop_aura/desktop_screen_position_client.cc.
64 if (views::GetAuraWindowTypeForWidgetType(type) == ui::wm::WINDOW_TYPE_POPUP)
67 return widget && widget->is_top_level();
70 // Return the content size for a minimum or maximum widget size.
71 gfx::Size GetClientSizeForWindowSize(NSWindow* window,
72 const gfx::Size& window_size) {
74 NSMakeRect(0, 0, window_size.width(), window_size.height());
75 // Note gfx::Size will prevent dimensions going negative. They are allowed to
76 // be zero at this point, because Widget::GetMinimumSize() may later increase
78 return gfx::Size([window contentRectForFrameRect:frame_rect].size);
86 gfx::Size BridgedNativeWidget::GetWindowSizeForClientSize(
88 const gfx::Size& content_size) {
90 NSMakeRect(0, 0, content_size.width(), content_size.height());
91 NSRect frame_rect = [window frameRectForContentRect:content_rect];
92 return gfx::Size(NSWidth(frame_rect), NSHeight(frame_rect));
95 BridgedNativeWidget::BridgedNativeWidget(NativeWidgetMac* parent)
96 : native_widget_mac_(parent),
97 focus_manager_(nullptr),
98 widget_type_(Widget::InitParams::TYPE_WINDOW), // Updated in Init().
100 target_fullscreen_state_(false),
101 in_fullscreen_transition_(false),
102 window_visible_(false),
103 wants_to_be_visible_(false) {
105 window_delegate_.reset(
106 [[ViewsNSWindowDelegate alloc] initWithBridgedNativeWidget:this]);
109 BridgedNativeWidget::~BridgedNativeWidget() {
110 RemoveOrDestroyChildren();
111 DCHECK(child_windows_.empty());
112 SetFocusManager(NULL);
115 if ([window_ delegate]) {
116 // If the delegate is still set on a modal dialog, it means it was not
117 // closed via [NSApplication endSheet:]. This is probably OK if the widget
118 // was never shown. But Cocoa ignores close() calls on open sheets. Calling
119 // endSheet: here would work, but it messes up assumptions elsewhere. E.g.
120 // DialogClientView assumes its delegate is alive when closing, which isn't
121 // true after endSheet: synchronously calls OnNativeWidgetDestroyed().
122 // So ban it. Modal dialogs should be closed via Widget::Close().
123 DCHECK(!native_widget_mac_->IsWindowModalSheet());
125 // If the delegate is still set, it means OnWindowWillClose has not been
126 // called and the window is still open. Calling -[NSWindow close] will
127 // synchronously call OnWindowWillClose and notify NativeWidgetMac.
130 DCHECK(![window_ delegate]);
133 void BridgedNativeWidget::Init(base::scoped_nsobject<NSWindow> window,
134 const Widget::InitParams& params) {
135 widget_type_ = params.type;
138 window_.swap(window);
139 [window_ setDelegate:window_delegate_];
141 // Register for application hide notifications so that visibility can be
142 // properly tracked. This is not done in the delegate so that the lifetime is
143 // tied to the C++ object, rather than the delegate (which may be reference
144 // counted). This is required since the application hides do not send an
145 // orderOut: to individual windows. Unhide, however, does send an order
147 [[NSNotificationCenter defaultCenter]
148 addObserver:window_delegate_
149 selector:@selector(onWindowOrderChanged:)
150 name:NSApplicationDidHideNotification
153 // Validate the window's initial state, otherwise the bridge's initial
154 // tracking state will be incorrect.
155 DCHECK(![window_ isVisible]);
156 DCHECK_EQ(0u, [window_ styleMask] & NSFullScreenWindowMask);
159 // Disallow creating child windows of views not currently in an NSWindow.
160 CHECK([params.parent window]);
161 BridgedNativeWidget* bridged_native_widget_parent =
162 NativeWidgetMac::GetBridgeForNativeWindow([params.parent window]);
163 // If the parent is another BridgedNativeWidget, just add to the collection
164 // of child windows it owns and manages. Otherwise, create an adapter to
165 // anchor the child widget and observe when the parent NSWindow is closed.
166 if (bridged_native_widget_parent) {
167 parent_ = bridged_native_widget_parent;
168 bridged_native_widget_parent->child_windows_.push_back(this);
170 parent_ = new WidgetOwnerNSWindowAdapter(this, params.parent);
174 // Set a meaningful initial bounds. Note that except for frameless widgets
175 // with no WidgetDelegate, the bounds will be set again by Widget after
176 // initializing the non-client view. In the former case, if bounds were not
177 // set at all, the creator of the Widget is expected to call SetBounds()
178 // before calling Widget::Show() to avoid a kWindowSizeDeterminedLater-sized
179 // (i.e. 1x1) window appearing.
180 if (!params.bounds.IsEmpty()) {
181 SetBounds(params.bounds);
183 // If a position is set, but no size, complain. Otherwise, a 1x1 window
184 // would appear there, which might be unexpected.
185 DCHECK(params.bounds.origin().IsOrigin())
186 << "Zero-sized windows not supported on Mac.";
188 // Otherwise, bounds is all zeroes. Cocoa will currently have the window at
189 // the bottom left of the screen. To support a client calling SetSize() only
190 // (and for consistency across platforms) put it at the top-left instead.
191 // Read back the current frame: it will be a 1x1 context rect but the frame
192 // size also depends on the window style.
193 NSRect frame_rect = [window_ frame];
194 SetBounds(gfx::Rect(gfx::Point(),
195 gfx::Size(NSWidth(frame_rect), NSHeight(frame_rect))));
198 // Widgets for UI controls (usually layered above web contents) start visible.
199 if (params.type == Widget::InitParams::TYPE_CONTROL)
200 SetVisibilityState(SHOW_INACTIVE);
202 // Tooltip Widgets shouldn't have their own tooltip manager, but tooltips are
203 // native on Mac, so nothing should ever want one in Widget form.
204 DCHECK_NE(params.type, Widget::InitParams::TYPE_TOOLTIP);
205 tooltip_manager_.reset(new TooltipManagerMac(this));
208 void BridgedNativeWidget::SetFocusManager(FocusManager* focus_manager) {
209 if (focus_manager_ == focus_manager)
213 focus_manager_->RemoveFocusChangeListener(this);
216 focus_manager->AddFocusChangeListener(this);
218 focus_manager_ = focus_manager;
221 void BridgedNativeWidget::SetBounds(const gfx::Rect& new_bounds) {
222 Widget* widget = native_widget_mac_->GetWidget();
223 // -[NSWindow contentMinSize] is only checked by Cocoa for user-initiated
224 // resizes. This is not what toolkit-views expects, so clamp. Note there is
225 // no check for maximum size (consistent with aura::Window::SetBounds()).
226 gfx::Size clamped_content_size =
227 GetClientSizeForWindowSize(window_, new_bounds.size());
228 clamped_content_size.SetToMax(widget->GetMinimumSize());
230 // A contentRect with zero width or height is a banned practice in ChromeMac,
231 // due to unpredictable OSX treatment.
232 DCHECK(!clamped_content_size.IsEmpty())
233 << "Zero-sized windows not supported on Mac";
235 if (!window_visible_ && native_widget_mac_->IsWindowModalSheet()) {
236 // Window-Modal dialogs (i.e. sheets) are positioned by Cocoa when shown for
237 // the first time. They also have no frame, so just update the content size.
238 [window_ setContentSize:NSMakeSize(clamped_content_size.width(),
239 clamped_content_size.height())];
242 gfx::Rect actual_new_bounds(
244 GetWindowSizeForClientSize(window_, clamped_content_size));
246 if (parent_ && !PositionWindowInScreenCoordinates(widget, widget_type_))
247 actual_new_bounds.Offset(parent_->GetChildWindowOffset());
249 [window_ setFrame:gfx::ScreenRectToNSRect(actual_new_bounds)
254 void BridgedNativeWidget::SetRootView(views::View* view) {
255 if (view == [bridged_view_ hostedView])
258 // If this is ever false, the compositor will need to be properly torn down
259 // and replaced, pointing at the new view.
260 DCHECK(!view || !compositor_widget_);
262 [bridged_view_ clearView];
263 bridged_view_.reset();
264 // Note that there can still be references to the old |bridged_view_|
265 // floating around in Cocoa libraries at this point. However, references to
266 // the old views::View will be gone, so any method calls will become no-ops.
269 bridged_view_.reset([[BridgedContentView alloc] initWithView:view]);
270 // Objective C initializers can return nil. However, if |view| is non-NULL
271 // this should be treated as an error and caught early.
272 CHECK(bridged_view_);
274 [window_ setContentView:bridged_view_];
277 void BridgedNativeWidget::SetVisibilityState(WindowVisibilityState new_state) {
279 // - A window with an invisible parent is not made visible.
280 // - A parent changing visibility updates child window visibility.
281 // * But only when changed via this function - ignore changes via the
282 // NSWindow API, or changes propagating out from here.
283 wants_to_be_visible_ = new_state != HIDE_WINDOW;
285 if (new_state == HIDE_WINDOW) {
286 [window_ orderOut:nil];
287 DCHECK(!window_visible_);
291 DCHECK(wants_to_be_visible_);
292 // If the parent (or an ancestor) is hidden, return and wait for it to become
294 if (parent() && !parent()->IsVisibleParent())
297 if (native_widget_mac_->IsWindowModalSheet()) {
298 NSWindow* parent_window = parent_->GetNSWindow();
299 DCHECK(parent_window);
301 [NSApp beginSheet:window_
302 modalForWindow:parent_window
303 modalDelegate:[window_ delegate]
304 didEndSelector:@selector(sheetDidEnd:returnCode:contextInfo:)
305 contextInfo:nullptr];
309 if (new_state == SHOW_AND_ACTIVATE_WINDOW) {
310 [window_ makeKeyAndOrderFront:nil];
311 [NSApp activateIgnoringOtherApps:YES];
313 // ui::SHOW_STATE_INACTIVE is typically used to avoid stealing focus from a
314 // parent window. So, if there's a parent, order above that. Otherwise, this
315 // will order above all windows at the same level.
316 NSInteger parent_window_number = 0;
318 parent_window_number = [parent_->GetNSWindow() windowNumber];
320 [window_ orderWindow:NSWindowAbove
321 relativeTo:parent_window_number];
323 DCHECK(window_visible_);
325 // For non-sheet modal types, use the constrained window animations to make
326 // the window appear.
327 if (native_widget_mac_->GetWidget()->IsModal()) {
328 base::scoped_nsobject<NSAnimation> show_animation(
329 [[ConstrainedWindowAnimationShow alloc] initWithWindow:window_]);
330 // The default mode is blocking, which would block the UI thread for the
331 // duration of the animation, but would keep it smooth. The window also
332 // hasn't yet received a frame from the compositor at this stage, so it is
333 // fully transparent until the GPU sends a frame swap IPC. For the blocking
334 // option, the animation needs to wait until AcceleratedWidgetSwapCompleted
335 // has been called at least once, otherwise it will animate nothing.
336 [show_animation setAnimationBlockingMode:NSAnimationNonblocking];
337 [show_animation startAnimation];
341 void BridgedNativeWidget::AcquireCapture() {
342 DCHECK(!HasCapture());
343 if (!window_visible_)
344 return; // Capture on hidden windows is disallowed.
346 mouse_capture_.reset(new CocoaMouseCapture(this));
348 // Initiating global event capture with addGlobalMonitorForEventsMatchingMask:
349 // will reset the mouse cursor to an arrow. Asking the window for an update
350 // here will restore what we want. However, it can sometimes cause the cursor
351 // to flicker, once, on the initial mouseDown.
352 // TOOD(tapted): Make this unnecessary by only asking for global mouse capture
353 // for the cases that need it (e.g. menus, but not drag and drop).
354 [window_ cursorUpdate:[NSApp currentEvent]];
357 void BridgedNativeWidget::ReleaseCapture() {
358 mouse_capture_.reset();
361 bool BridgedNativeWidget::HasCapture() {
362 return mouse_capture_ && mouse_capture_->IsActive();
365 void BridgedNativeWidget::SetNativeWindowProperty(const char* name,
367 NSString* key = [NSString stringWithUTF8String:name];
369 [GetWindowProperties() setObject:[NSValue valueWithPointer:value]
372 [GetWindowProperties() removeObjectForKey:key];
376 void* BridgedNativeWidget::GetNativeWindowProperty(const char* name) const {
377 NSString* key = [NSString stringWithUTF8String:name];
378 return [[GetWindowProperties() objectForKey:key] pointerValue];
381 void BridgedNativeWidget::SetCursor(NSCursor* cursor) {
382 [window_delegate_ setCursor:cursor];
385 void BridgedNativeWidget::OnWindowWillClose() {
387 parent_->RemoveChildWindow(this);
390 [window_ setDelegate:nil];
391 [[NSNotificationCenter defaultCenter] removeObserver:window_delegate_];
392 native_widget_mac_->OnWindowWillClose();
395 void BridgedNativeWidget::OnFullscreenTransitionStart(
396 bool target_fullscreen_state) {
397 // Note: This can fail for fullscreen changes started externally, but a user
398 // shouldn't be able to do that if the window is invisible to begin with.
399 DCHECK(window_visible_);
401 DCHECK_NE(target_fullscreen_state, target_fullscreen_state_);
402 target_fullscreen_state_ = target_fullscreen_state;
403 in_fullscreen_transition_ = true;
405 // If going into fullscreen, store an answer for GetRestoredBounds().
406 if (target_fullscreen_state)
407 bounds_before_fullscreen_ = gfx::ScreenRectFromNSRect([window_ frame]);
410 void BridgedNativeWidget::OnFullscreenTransitionComplete(
411 bool actual_fullscreen_state) {
412 in_fullscreen_transition_ = false;
414 if (target_fullscreen_state_ == actual_fullscreen_state) {
415 // Ensure constraints are re-applied when completing a transition.
416 OnSizeConstraintsChanged();
420 // First update to reflect reality so that OnTargetFullscreenStateChanged()
421 // expects the change.
422 target_fullscreen_state_ = actual_fullscreen_state;
423 ToggleDesiredFullscreenState();
425 // Usually ToggleDesiredFullscreenState() sets |in_fullscreen_transition_| via
426 // OnFullscreenTransitionStart(). When it does not, it means Cocoa ignored the
427 // toggleFullScreen: request. This can occur when the fullscreen transition
428 // fails and Cocoa is *about* to send windowDidFailToEnterFullScreen:.
429 // Annoyingly, for this case, Cocoa first sends windowDidExitFullScreen:.
430 if (in_fullscreen_transition_)
431 DCHECK_NE(target_fullscreen_state_, actual_fullscreen_state);
434 void BridgedNativeWidget::ToggleDesiredFullscreenState() {
435 // If there is currently an animation into or out of fullscreen, then AppKit
436 // emits the string "not in fullscreen state" to stdio and does nothing. For
437 // this case, schedule a transition back into the desired state when the
438 // animation completes.
439 if (in_fullscreen_transition_) {
440 target_fullscreen_state_ = !target_fullscreen_state_;
444 // Going fullscreen implicitly makes the window visible. AppKit does this.
445 // That is, -[NSWindow isVisible] is always true after a call to -[NSWindow
446 // toggleFullScreen:]. Unfortunately, this change happens after AppKit calls
447 // -[NSWindowDelegate windowWillEnterFullScreen:], and AppKit doesn't send an
448 // orderWindow message. So intercepting the implicit change is hard.
449 // Luckily, to trigger externally, the window typically needs to be visible in
450 // the first place. So we can just ensure the window is visible here instead
451 // of relying on AppKit to do it, and not worry that OnVisibilityChanged()
452 // won't be called for externally triggered fullscreen requests.
453 if (!window_visible_)
454 SetVisibilityState(SHOW_INACTIVE);
456 if (base::mac::IsOSSnowLeopard()) {
458 return; // TODO(tapted): Implement this for Snow Leopard.
461 // Enable fullscreen collection behavior because:
462 // 1: -[NSWindow toggleFullscreen:] would otherwise be ignored,
463 // 2: the fullscreen button must be enabled so the user can leave fullscreen.
464 // This will be reset when a transition out of fullscreen completes.
465 gfx::SetNSWindowCanFullscreen(window_, true);
467 [window_ toggleFullScreen:nil];
470 void BridgedNativeWidget::OnSizeChanged() {
471 gfx::Size new_size = GetClientAreaSize();
472 native_widget_mac_->GetWidget()->OnNativeWidgetSizeChanged(new_size);
474 UpdateLayerProperties();
477 void BridgedNativeWidget::OnVisibilityChanged() {
478 OnVisibilityChangedTo([window_ isVisible]);
481 void BridgedNativeWidget::OnVisibilityChangedTo(bool new_visibility) {
482 if (window_visible_ == new_visibility)
485 window_visible_ = new_visibility;
487 // If arriving via SetVisible(), |wants_to_be_visible_| should already be set.
488 // If made visible externally (e.g. Cmd+H), just roll with it. Don't try (yet)
489 // to distinguish being *hidden* externally from being hidden by a parent
490 // window - we might not need that.
491 if (window_visible_) {
492 wants_to_be_visible_ = true;
495 [parent_->GetNSWindow() addChildWindow:window_ ordered:NSWindowAbove];
497 mouse_capture_.reset(); // Capture on hidden windows is not permitted.
499 // When becoming invisible, remove the entry in any parent's childWindow
500 // list. Cocoa's childWindow management breaks down when child windows are
503 [parent_->GetNSWindow() removeChildWindow:window_];
506 // TODO(tapted): Investigate whether we want this for Mac. This is what Aura
507 // does, and it is what tests expect. However, because layer drawing is
508 // asynchronous (and things like deminiaturize in AppKit are not), it can
509 // result in a CALayer appearing on screen before it has been redrawn in the
510 // GPU process. This is a general problem. In content, a helper class,
511 // RenderWidgetResizeHelper, blocks the UI thread in -[NSView setFrameSize:]
512 // and RenderWidgetHostView::Show() until a frame is ready.
514 layer()->SetVisible(window_visible_);
515 layer()->SchedulePaint(gfx::Rect(GetClientAreaSize()));
518 NotifyVisibilityChangeDown();
520 native_widget_mac_->GetWidget()->OnNativeWidgetVisibilityChanged(
523 // Toolkit-views suppresses redraws while not visible. To prevent Cocoa asking
524 // for an "empty" draw, disable auto-display while hidden. For example, this
525 // prevents Cocoa drawing just *after* a minimize, resulting in a blank window
526 // represented in the deminiaturize animation.
527 [window_ setAutodisplay:window_visible_];
530 void BridgedNativeWidget::OnBackingPropertiesChanged() {
532 UpdateLayerProperties();
535 void BridgedNativeWidget::OnWindowKeyStatusChangedTo(bool is_key) {
536 Widget* widget = native_widget_mac()->GetWidget();
537 widget->OnNativeWidgetActivationChanged(is_key);
538 // The contentView is the BridgedContentView hosting the views::RootView. The
539 // focus manager will already know if a native subview has focus.
540 if ([window_ contentView] == [window_ firstResponder]) {
542 widget->OnNativeFocus();
543 widget->GetFocusManager()->RestoreFocusedView();
545 widget->OnNativeBlur();
546 widget->GetFocusManager()->StoreFocusedView(true);
551 void BridgedNativeWidget::OnSizeConstraintsChanged() {
552 // Don't modify the size constraints or fullscreen collection behavior while
553 // in fullscreen or during a transition. OnFullscreenTransitionComplete will
554 // reset these after leaving fullscreen.
555 if (target_fullscreen_state_ || in_fullscreen_transition_)
558 Widget* widget = native_widget_mac()->GetWidget();
559 gfx::Size min_size = widget->GetMinimumSize();
560 gfx::Size max_size = widget->GetMaximumSize();
561 bool is_resizable = widget->widget_delegate()->CanResize();
562 bool shows_resize_controls =
563 is_resizable && (min_size.IsEmpty() || min_size != max_size);
564 bool shows_fullscreen_controls =
565 is_resizable && widget->widget_delegate()->CanMaximize();
567 gfx::ApplyNSWindowSizeConstraints(window_, min_size, max_size,
568 shows_resize_controls,
569 shows_fullscreen_controls);
572 InputMethod* BridgedNativeWidget::CreateInputMethod() {
573 if (switches::IsTextInputFocusManagerEnabled())
574 return new NullInputMethod();
576 return new InputMethodBridge(this, GetHostInputMethod(), true);
579 ui::InputMethod* BridgedNativeWidget::GetHostInputMethod() {
580 if (!input_method_) {
581 // Delegate is NULL because Mac IME does not need DispatchKeyEventPostIME
583 input_method_ = ui::CreateInputMethod(NULL, nil);
585 return input_method_.get();
588 gfx::Rect BridgedNativeWidget::GetRestoredBounds() const {
589 if (target_fullscreen_state_ || in_fullscreen_transition_)
590 return bounds_before_fullscreen_;
592 return gfx::ScreenRectFromNSRect([window_ frame]);
595 void BridgedNativeWidget::CreateLayer(ui::LayerType layer_type,
597 DCHECK(bridged_view_);
603 SetLayer(new ui::Layer(layer_type));
604 // Note, except for controls, this will set the layer to be hidden, since it
605 // is only called during Init().
606 layer()->SetVisible(window_visible_);
607 layer()->set_delegate(this);
611 // Transparent window support.
612 layer()->GetCompositor()->SetHostHasTransparentBackground(translucent);
613 layer()->SetFillsBoundsOpaquely(!translucent);
615 [window_ setOpaque:NO];
616 [window_ setBackgroundColor:[NSColor clearColor]];
619 UpdateLayerProperties();
622 ////////////////////////////////////////////////////////////////////////////////
623 // BridgedNativeWidget, internal::InputMethodDelegate:
625 void BridgedNativeWidget::DispatchKeyEventPostIME(const ui::KeyEvent& key) {
626 DCHECK(focus_manager_);
627 native_widget_mac_->GetWidget()->OnKeyEvent(const_cast<ui::KeyEvent*>(&key));
629 focus_manager_->OnKeyEvent(key);
632 ////////////////////////////////////////////////////////////////////////////////
633 // BridgedNativeWidget, CocoaMouseCaptureDelegate:
635 void BridgedNativeWidget::PostCapturedEvent(NSEvent* event) {
636 [bridged_view_ processCapturedMouseEvent:event];
639 void BridgedNativeWidget::OnMouseCaptureLost() {
640 native_widget_mac_->GetWidget()->OnMouseCaptureLost();
643 ////////////////////////////////////////////////////////////////////////////////
644 // BridgedNativeWidget, FocusChangeListener:
646 void BridgedNativeWidget::OnWillChangeFocus(View* focused_before,
650 void BridgedNativeWidget::OnDidChangeFocus(View* focused_before,
652 ui::TextInputClient* input_client =
653 focused_now ? focused_now->GetTextInputClient() : NULL;
654 [bridged_view_ setTextInputClient:input_client];
657 ////////////////////////////////////////////////////////////////////////////////
658 // BridgedNativeWidget, LayerDelegate:
660 void BridgedNativeWidget::OnPaintLayer(const ui::PaintContext& context) {
661 DCHECK(window_visible_);
662 native_widget_mac_->GetWidget()->OnNativeWidgetPaint(context);
665 void BridgedNativeWidget::OnDelegatedFrameDamage(
666 const gfx::Rect& damage_rect_in_dip) {
670 void BridgedNativeWidget::OnDeviceScaleFactorChanged(
671 float device_scale_factor) {
675 base::Closure BridgedNativeWidget::PrepareForLayerBoundsChange() {
677 return base::Closure();
680 ////////////////////////////////////////////////////////////////////////////////
681 // BridgedNativeWidget, AcceleratedWidgetMac:
683 NSView* BridgedNativeWidget::AcceleratedWidgetGetNSView() const {
684 return compositor_superview_;
687 bool BridgedNativeWidget::AcceleratedWidgetShouldIgnoreBackpressure() const {
691 void BridgedNativeWidget::AcceleratedWidgetSwapCompleted(
692 const std::vector<ui::LatencyInfo>& latency_info) {
695 void BridgedNativeWidget::AcceleratedWidgetHitError() {
696 compositor_->ScheduleFullRedraw();
699 ////////////////////////////////////////////////////////////////////////////////
700 // BridgedNativeWidget, BridgedNativeWidgetOwner:
702 NSWindow* BridgedNativeWidget::GetNSWindow() {
706 gfx::Vector2d BridgedNativeWidget::GetChildWindowOffset() const {
707 return gfx::ScreenRectFromNSRect([window_ frame]).OffsetFromOrigin();
710 bool BridgedNativeWidget::IsVisibleParent() const {
711 return parent_ ? window_visible_ && parent_->IsVisibleParent()
715 void BridgedNativeWidget::RemoveChildWindow(BridgedNativeWidget* child) {
716 auto location = std::find(
717 child_windows_.begin(), child_windows_.end(), child);
718 DCHECK(location != child_windows_.end());
719 child_windows_.erase(location);
721 // Note the child is sometimes removed already by AppKit. This depends on OS
722 // version, and possibly some unpredictable reference counting. Removing it
723 // here should be safe regardless.
724 [window_ removeChildWindow:child->window_];
727 ////////////////////////////////////////////////////////////////////////////////
728 // BridgedNativeWidget, private:
730 void BridgedNativeWidget::RemoveOrDestroyChildren() {
731 // TODO(tapted): Implement unowned child windows if required.
732 while (!child_windows_.empty()) {
733 // The NSWindow can only be destroyed after -[NSWindow close] is complete.
734 // Retain the window, otherwise the reference count can reach zero when the
735 // child calls back into RemoveChildWindow() via its OnWindowWillClose().
736 base::scoped_nsobject<NSWindow> child(
737 [child_windows_.back()->ns_window() retain]);
742 void BridgedNativeWidget::NotifyVisibilityChangeDown() {
743 // Child windows sometimes like to close themselves in response to visibility
744 // changes. That's supported, but only with the asynchronous Widget::Close().
745 // Perform a heuristic to detect child removal that would break these loops.
746 const size_t child_count = child_windows_.size();
747 if (!window_visible_) {
748 for (BridgedNativeWidget* child : child_windows_) {
749 if (child->window_visible_)
750 [child->ns_window() orderOut:nil];
752 DCHECK(!child->window_visible_);
753 CHECK_EQ(child_count, child_windows_.size());
755 // The orderOut calls above should result in a call to OnVisibilityChanged()
756 // in each child. There, children will remove themselves from the NSWindow
757 // childWindow list as well as propagate NotifyVisibilityChangeDown() calls
758 // to any children of their own.
759 DCHECK_EQ(0u, [[window_ childWindows] count]);
763 NSUInteger visible_children = 0; // For a DCHECK below.
764 NSInteger parent_window_number = [window_ windowNumber];
765 for (BridgedNativeWidget* child: child_windows_) {
766 // Note: order the child windows on top, regardless of whether or not they
767 // are currently visible. They probably aren't, since the parent was hidden
768 // prior to this, but they could have been made visible in other ways.
769 if (child->wants_to_be_visible_) {
771 // Here -[NSWindow orderWindow:relativeTo:] is used to put the window on
772 // screen. However, that by itself is insufficient to guarantee a correct
773 // z-order relationship. If this function is being called from a z-order
774 // change in the parent, orderWindow turns out to be unreliable (i.e. the
775 // ordering doesn't always take effect). What this actually relies on is
776 // the resulting call to OnVisibilityChanged() in the child, which will
777 // then insert itself into -[NSWindow childWindows] to let Cocoa do its
778 // internal layering magic.
779 [child->ns_window() orderWindow:NSWindowAbove
780 relativeTo:parent_window_number];
781 DCHECK(child->window_visible_);
783 CHECK_EQ(child_count, child_windows_.size());
785 DCHECK_EQ(visible_children, [[window_ childWindows] count]);
788 gfx::Size BridgedNativeWidget::GetClientAreaSize() const {
789 NSRect content_rect = [window_ contentRectForFrameRect:[window_ frame]];
790 return gfx::Size(NSWidth(content_rect), NSHeight(content_rect));
793 void BridgedNativeWidget::CreateCompositor() {
794 DCHECK(!compositor_);
795 DCHECK(!compositor_widget_);
796 DCHECK(ViewsDelegate::views_delegate);
798 ui::ContextFactory* context_factory =
799 ViewsDelegate::views_delegate->GetContextFactory();
800 DCHECK(context_factory);
802 AddCompositorSuperview();
804 // TODO(tapted): Get this value from GpuDataManagerImpl via ViewsDelegate.
805 bool needs_gl_finish_workaround = false;
807 compositor_widget_.reset(
808 new ui::AcceleratedWidgetMac(needs_gl_finish_workaround));
809 compositor_.reset(new ui::Compositor(compositor_widget_->accelerated_widget(),
811 base::ThreadTaskRunnerHandle::Get()));
812 compositor_widget_->SetNSView(this);
815 void BridgedNativeWidget::InitCompositor() {
817 float scale_factor = GetDeviceScaleFactorFromView(compositor_superview_);
818 gfx::Size size_in_dip = GetClientAreaSize();
819 compositor_->SetScaleAndSize(scale_factor,
820 ConvertSizeToPixel(scale_factor, size_in_dip));
821 compositor_->SetRootLayer(layer());
824 void BridgedNativeWidget::DestroyCompositor() {
826 layer()->set_delegate(nullptr);
829 if (!compositor_widget_) {
830 DCHECK(!compositor_);
833 compositor_widget_->ResetNSView();
835 compositor_widget_.reset();
838 void BridgedNativeWidget::AddCompositorSuperview() {
839 DCHECK(!compositor_superview_);
840 compositor_superview_.reset(
841 [[ViewsCompositorSuperview alloc] initWithFrame:[bridged_view_ bounds]]);
843 // Size and resize automatically with |bridged_view_|.
844 [compositor_superview_
845 setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
847 // Enable HiDPI backing when supported (only on 10.7+).
848 if ([compositor_superview_ respondsToSelector:
849 @selector(setWantsBestResolutionOpenGLSurface:)]) {
850 [compositor_superview_ setWantsBestResolutionOpenGLSurface:YES];
853 base::scoped_nsobject<CALayer> background_layer([[CALayer alloc] init]);
855 setAutoresizingMask:kCALayerWidthSizable | kCALayerHeightSizable];
857 // Set the layer first to create a layer-hosting view (not layer-backed).
858 [compositor_superview_ setLayer:background_layer];
859 [compositor_superview_ setWantsLayer:YES];
861 // The UI compositor should always be the first subview, to ensure webviews
862 // are drawn on top of it.
863 DCHECK_EQ(0u, [[bridged_view_ subviews] count]);
864 [bridged_view_ addSubview:compositor_superview_];
867 void BridgedNativeWidget::UpdateLayerProperties() {
869 DCHECK(compositor_superview_);
870 gfx::Size size_in_dip = GetClientAreaSize();
871 layer()->SetBounds(gfx::Rect(size_in_dip));
873 float scale_factor = GetDeviceScaleFactorFromView(compositor_superview_);
874 compositor_->SetScaleAndSize(scale_factor,
875 ConvertSizeToPixel(scale_factor, size_in_dip));
878 NSMutableDictionary* BridgedNativeWidget::GetWindowProperties() const {
879 NSMutableDictionary* properties = objc_getAssociatedObject(
880 window_, &kWindowPropertiesKey);
882 properties = [NSMutableDictionary dictionary];
883 objc_setAssociatedObject(window_, &kWindowPropertiesKey,
884 properties, OBJC_ASSOCIATION_RETAIN);