| // Copyright 2014 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 "ui/views/cocoa/views_nswindow_delegate.h" |
| |
| #include "base/logging.h" |
| #import "base/mac/bind_objc_block.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #import "ui/views/cocoa/bridged_content_view.h" |
| #import "ui/views/cocoa/bridged_native_widget.h" |
| #include "ui/views/widget/native_widget_mac.h" |
| |
| @implementation ViewsNSWindowDelegate |
| |
| - (id)initWithBridgedNativeWidget:(views::BridgedNativeWidget*)parent { |
| DCHECK(parent); |
| if ((self = [super init])) { |
| parent_ = parent; |
| } |
| return self; |
| } |
| |
| - (views::NativeWidgetMac*)nativeWidgetMac { |
| return parent_->native_widget_mac(); |
| } |
| |
| - (NSCursor*)cursor { |
| return cursor_.get(); |
| } |
| |
| - (void)setCursor:(NSCursor*)newCursor { |
| if (cursor_.get() == newCursor) |
| return; |
| |
| cursor_.reset([newCursor retain]); |
| [parent_->ns_window() resetCursorRects]; |
| } |
| |
| - (void)onWindowOrderChanged:(NSNotification*)notification { |
| parent_->OnVisibilityChanged(); |
| } |
| |
| - (void)onSystemControlTintChanged:(NSNotification*)notification { |
| parent_->OnSystemControlTintChanged(); |
| } |
| |
| - (void)sheetDidEnd:(NSWindow*)sheet |
| returnCode:(NSInteger)returnCode |
| contextInfo:(void*)contextInfo { |
| // |parent_| will be null when triggered from the block in -windowWillClose:. |
| if (!parent_) |
| return; |
| |
| [sheet orderOut:nil]; |
| parent_->OnWindowWillClose(); |
| } |
| |
| // NSWindowDelegate implementation. |
| |
| - (void)windowDidFailToEnterFullScreen:(NSWindow*)window { |
| // Cocoa should already have sent an (unexpected) windowDidExitFullScreen: |
| // notification, and the attempt to get back into fullscreen should fail. |
| // Nothing to do except verify |parent_| is no longer trying to fullscreen. |
| DCHECK(!parent_->target_fullscreen_state()); |
| } |
| |
| - (void)windowDidFailToExitFullScreen:(NSWindow*)window { |
| // Unlike entering fullscreen, windowDidFailToExitFullScreen: is sent *before* |
| // windowDidExitFullScreen:. Also, failing to exit fullscreen just dumps the |
| // window out of fullscreen without an animation; still sending the expected, |
| // windowDidExitFullScreen: notification. So, again, nothing to do here. |
| DCHECK(!parent_->target_fullscreen_state()); |
| } |
| |
| - (void)windowDidResize:(NSNotification*)notification { |
| parent_->OnSizeChanged(); |
| } |
| |
| - (void)windowDidMove:(NSNotification*)notification { |
| // Note: windowDidMove: is sent only once at the end of a window drag. There |
| // is also windowWillMove: sent at the start, also once. When the window is |
| // being moved by the WindowServer live updates are not provided. |
| parent_->OnPositionChanged(); |
| } |
| |
| - (void)windowDidBecomeKey:(NSNotification*)notification { |
| parent_->OnWindowKeyStatusChangedTo(true); |
| } |
| |
| - (void)windowDidResignKey:(NSNotification*)notification { |
| parent_->OnWindowKeyStatusChangedTo(false); |
| } |
| |
| - (BOOL)windowShouldClose:(id)sender { |
| views::NonClientView* nonClientView = |
| [self nativeWidgetMac]->GetWidget()->non_client_view(); |
| return !nonClientView || nonClientView->CanClose(); |
| } |
| |
| - (void)windowWillClose:(NSNotification*)notification { |
| // Retain |self|. |parent_| should be cleared. OnWindowWillClose() may delete |
| // |parent_|, but it may also dealloc |self| before returning. However, the |
| // observers it notifies before that need a valid |parent_| on the delegate, |
| // so it can only be cleared after OnWindowWillClose() returns. |
| base::scoped_nsobject<NSObject> keepAlive(self, base::scoped_policy::RETAIN); |
| NSWindow* window = parent_->ns_window(); |
| if (NSWindow* sheetParent = [window sheetParent]) { |
| // On no! Something called -[NSWindow close] on a sheet rather than calling |
| // -[NSWindow endSheet:] on its parent. If the modal session is not ended |
| // then the parent will never be able to show another sheet. But calling |
| // -endSheet: here will block the thread with an animation, so post a task. |
| // Use a block: The argument to -endSheet: must be retained, since it's the |
| // window that is closing and -performSelector: won't retain the argument. |
| // The NSWindowDelegate (i.e. |self|) must also be explicitly retained. Even |
| // though the call to OnWindowWillClose() below will remove |self| as the |
| // NSWindow delegate, the call to -[NSApp beginSheet:] also took a weak |
| // reference to the delegate, which will be destroyed when the sheet's |
| // BridgedNativeWidget is destroyed. |
| base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, base::BindBlock(^{ |
| [sheetParent endSheet:window]; |
| [[self retain] release]; // Force |self| to be retained for the block. |
| })); |
| } |
| DCHECK([window isEqual:[notification object]]); |
| parent_->OnWindowWillClose(); |
| parent_ = nullptr; |
| } |
| |
| - (void)windowDidMiniaturize:(NSNotification*)notification { |
| parent_->OnVisibilityChanged(); |
| } |
| |
| - (void)windowDidDeminiaturize:(NSNotification*)notification { |
| parent_->OnVisibilityChanged(); |
| } |
| |
| - (void)windowDidChangeBackingProperties:(NSNotification*)notification { |
| parent_->OnBackingPropertiesChanged(); |
| } |
| |
| - (void)windowWillEnterFullScreen:(NSNotification*)notification { |
| parent_->OnFullscreenTransitionStart(true); |
| } |
| |
| - (void)windowDidEnterFullScreen:(NSNotification*)notification { |
| parent_->OnFullscreenTransitionComplete(true); |
| } |
| |
| - (void)windowWillExitFullScreen:(NSNotification*)notification { |
| parent_->OnFullscreenTransitionStart(false); |
| } |
| |
| - (void)windowDidExitFullScreen:(NSNotification*)notification { |
| parent_->OnFullscreenTransitionComplete(false); |
| } |
| |
| // Allow non-resizable windows (without NSResizableWindowMask) to fill the |
| // screen in fullscreen mode. This only happens when |
| // -[NSWindow toggleFullscreen:] is called since non-resizable windows have no |
| // fullscreen button. Without this they would only enter fullscreen at their |
| // current size. |
| - (NSSize)window:(NSWindow*)window |
| willUseFullScreenContentSize:(NSSize)proposedSize { |
| return proposedSize; |
| } |
| |
| // Override to correctly position modal dialogs. |
| - (NSRect)window:(NSWindow*)window |
| willPositionSheet:(NSWindow*)sheet |
| usingRect:(NSRect)defaultSheetLocation { |
| // As per NSWindowDelegate documentation, the origin indicates the top left |
| // point of the host frame in window coordinates. The width changes the |
| // animation from vertical to trapezoid if it is smaller than the width of the |
| // dialog. The height is ignored but should be set to zero. |
| return NSMakeRect(0, [self nativeWidgetMac]->SheetPositionY(), |
| NSWidth(defaultSheetLocation), 0); |
| } |
| |
| @end |