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// 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<ConstrainedWindowSheet> 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:sheet_];
}
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];
}
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