MacViews: Unify web contents modal dialog types

chrome/browser/ui/cocoa/single_web_contents_dialog_manager_cocoa.mm

+// 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"
+#import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
+#include "components/web_modal/web_contents_modal_dialog_manager.h"
+
+using web_modal::NativeWebContentsModalDialog;
+using web_modal::SingleWebContentsDialogManagerDelegate;
+
+SingleWebContentsDialogManagerCocoa::SingleWebContentsDialogManagerCocoa(
+    ConstrainedWindowMac* client,
+    id<ConstrainedWindowSheet> sheet,
+    web_modal::SingleWebContentsDialogManagerDelegate* delegate)
+    : client_(client),
+      sheet_([sheet retain]),
+      delegate_(delegate),
+      shown_(false) {
+  if (client)
+    client->set_manager(this);
+}
+
+SingleWebContentsDialogManagerCocoa::~SingleWebContentsDialogManagerCocoa() {
+}
+
+void SingleWebContentsDialogManagerCocoa::Show() {
+  if (shown_)
+    return;
+
+  content::WebContents* web_contents = delegate_->GetWebContents();
+  NSWindow* parent_window = web_contents->GetTopLevelNativeWindow();
+  NSView* parent_view = GetSheetParentViewForWebContents(web_contents);
+  if (!parent_window || !parent_view)
+    return;
+
+  shown_ = true;
+  [[ConstrainedWindowSheetController controllerForParentWindow:parent_window]
+      showSheet:sheet_ forParentView:parent_view];
+}
+
+void SingleWebContentsDialogManagerCocoa::Hide() {
+}
+
+void SingleWebContentsDialogManagerCocoa::Close() {
+  [[ConstrainedWindowSheetController controllerForSheet:sheet_]
+      closeSheet:sheet_];
+  if (client_) {
+    client_->set_manager(nullptr);
+    client_->OnDialogClosing();  // |client_| might delete itself here.
+    client_ = nullptr;
+  }
+  delegate_->WillClose(dialog());
+}
+
+void SingleWebContentsDialogManagerCocoa::Focus() {
+}
+
+void SingleWebContentsDialogManagerCocoa::Pulse() {
+  [[ConstrainedWindowSheetController controllerForSheet:sheet_]
+      pulseSheet:sheet_];
+}
+
+void SingleWebContentsDialogManagerCocoa::HostChanged(
+    web_modal::WebContentsModalDialogHost* new_host) {
+}
+
+NativeWebContentsModalDialog SingleWebContentsDialogManagerCocoa::dialog() {
+  return [sheet_ sheetWindow];
+}
+
+namespace web_modal {
+
+SingleWebContentsDialogManager*
+WebContentsModalDialogManager::CreateNativeWebModalManager(
+    NativeWebContentsModalDialog dialog,
+    SingleWebContentsDialogManagerDelegate* delegate) {
+  base::scoped_nsobject<CustomConstrainedWindowSheet> sheet(
+      [[CustomConstrainedWindowSheet alloc] initWithCustomWindow:dialog]);
+  return new SingleWebContentsDialogManagerCocoa(nullptr, sheet, delegate);
+}
+
+}  // namespace web_modal