Prompt for granting permission to access USB devices.

chrome/browser/ui/cocoa/extensions/device_permissions_dialog_controller.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_COCOA_EXTENSIONS_DEVICE_PERMISSIONS_DIALOG_CONTROLER_H_
+#define CHROME_BROWSER_UI_COCOA_EXTENSIONS_DEVICE_PERMISSIONS_DIALOG_CONTROLER_H_
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/mac/scoped_nsobject.h"
+#import "chrome/browser/ui/cocoa/constrained_window/constrained_window_mac.h"
+#include "extensions/browser/api/device_permissions_prompt.h"
+
+namespace content {
+class WebContents;
+}
+
+@class DevicePermissionsViewController;
+
+// Displays an device permissions selector prompt as a modal sheet constrained
+// to the window/tab displaying the given web contents.
+class DevicePermissionsDialogController
+    : public extensions::DevicePermissionsPrompt::Delegate,
+      public extensions::DevicePermissionsPrompt::Prompt::Observer,
+      public ConstrainedWindowMacDelegate {
+ public:
+  DevicePermissionsDialogController(
+      content::WebContents* web_contents,
+      extensions::DevicePermissionsPrompt::Delegate* delegate,
+      scoped_refptr<extensions::DevicePermissionsPrompt::Prompt> prompt);
+  virtual ~DevicePermissionsDialogController();
+
+  // extensions::DevicePermissionsPrompt::Delegate implementation.
+  virtual void OnUsbDevicesChosen(
+      const std::vector<scoped_refptr<device::UsbDevice>>& devices) override;
+
+  // extensions::DevicePermissionsPrompt::Prompt::Observer implementation.
+  virtual void OnDevicesChanged() override;
+
+  // ConstrainedWindowMacDelegate implementation.
+  virtual void OnConstrainedWindowClosed(ConstrainedWindowMac* window) override;
+
+  ConstrainedWindowMac* constrained_window() const {
+    return constrained_window_.get();
+  }
+  DevicePermissionsViewController* view_controller() const {
+    return view_controller_;
+  }
+
+ private:
+  extensions::DevicePermissionsPrompt::Delegate* delegate_;
+  scoped_refptr<extensions::DevicePermissionsPrompt::Prompt> prompt_;
+  base::scoped_nsobject<DevicePermissionsViewController> view_controller_;
+  scoped_ptr<ConstrainedWindowMac> constrained_window_;
+};
+
+#endif  // CHROME_BROWSER_UI_COCOA_EXTENSIONS_DEVICE_PERMISSIONS_DIALOG_CONTROLER_H_