// Copyright 2015 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/single_web_contents_dialog_manager_cocoa.h" #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_custom_sheet.h" #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_mac.h" #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_sheet_controller.h" #include "components/web_modal/web_contents_modal_dialog_host.h" #include "components/web_modal/web_contents_modal_dialog_manager.h" #include "content/public/browser/web_contents.h" SingleWebContentsDialogManagerCocoa::SingleWebContentsDialogManagerCocoa( ConstrainedWindowMac* client, id sheet, web_modal::SingleWebContentsDialogManagerDelegate* delegate) : client_(client), sheet_([sheet retain]), delegate_(delegate), host_(nullptr) { DCHECK(client); client->set_manager(this); } SingleWebContentsDialogManagerCocoa::~SingleWebContentsDialogManagerCocoa() { } void SingleWebContentsDialogManagerCocoa::Show() { // If a dialog is initially shown on a hidden/background WebContents, the // |delegate_| will defer the Show() until the WebContents is shown. If the // defer happens during tab closure or tab dragging, a suspected data race or // ObserverList ordering may result in |host_| being null here. If the tab is // closing anyway, it doesn't matter. For tab dragging, avoid a crash, but the // user may have to switch tabs again to see the dialog. See // http://crbug.com/514826 for details. if (!host_) return; NSView* parent_view = host_->GetHostView(); // Note that simply [parent_view window] for an inactive tab is nil. However, // the following should always be non-nil for all WebContents containers. NSWindow* parent_window = delegate_->GetWebContents()->GetTopLevelNativeWindow(); [[ConstrainedWindowSheetController controllerForParentWindow:parent_window] showSheet:sheet_ forParentView:parent_view]; } void SingleWebContentsDialogManagerCocoa::Hide() { NSWindow* parent_window = delegate_->GetWebContents()->GetTopLevelNativeWindow(); [[ConstrainedWindowSheetController controllerForParentWindow:parent_window] hideSheet]; } void SingleWebContentsDialogManagerCocoa::Close() { [[ConstrainedWindowSheetController controllerForSheet:sheet_] closeSheet:sheet_]; client_->set_manager(nullptr); bool dialog_was_open = client_->DialogWasShown(); client_->OnDialogClosing(); // |client_| might delete itself here. if (dialog_was_open) delegate_->WillClose(dialog()); // Deletes |this|. } void SingleWebContentsDialogManagerCocoa::Focus() { } void SingleWebContentsDialogManagerCocoa::Pulse() { [[ConstrainedWindowSheetController controllerForSheet:sheet_] pulseSheet:sheet_]; } void SingleWebContentsDialogManagerCocoa::HostChanged( web_modal::WebContentsModalDialogHost* new_host) { // No need to observe the host. For Cocoa, the constrained window controller // will reposition the dialog when necessary. The host can also never change. // Tabs showing a dialog can not be dragged off a Cocoa browser window. // However, closing a tab with a dialog open will set the host back to null. DCHECK_NE(!!host_, !!new_host); host_ = new_host; } gfx::NativeWindow SingleWebContentsDialogManagerCocoa::dialog() { return [sheet_ sheetWindow]; }