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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 //
      5 // This file contains helper functions used by Chromium OS login.
      6 
      7 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_HELPER_H_
      8 #define CHROME_BROWSER_CHROMEOS_LOGIN_HELPER_H_
      9 
     10 #include "base/compiler_specific.h"
     11 #include "base/strings/string16.h"
     12 #include "third_party/skia/include/core/SkColor.h"
     13 #include "ui/views/view.h"
     14 
     15 class GURL;
     16 
     17 namespace gfx {
     18 class Rect;
     19 class Size;
     20 }  // namespace gfx
     21 
     22 namespace chromeos {
     23 
     24 // Returns bounds of the screen to use for login wizard.
     25 // The rect is centered within the default monitor and sized accordingly if
     26 // |size| is not empty. Otherwise the whole monitor is occupied.
     27 gfx::Rect CalculateScreenBounds(const gfx::Size& size);
     28 
     29 // Returns the size of user image required for proper display under current DPI.
     30 int GetCurrentUserImageSize();
     31 
     32 // Define the constants in |login| namespace to avoid potential
     33 // conflict with other chromeos components.
     34 namespace login {
     35 
     36 // Maximum size of user image, in which it should be saved to be properly
     37 // displayed under all possible DPI values.
     38 const int kMaxUserImageSize = 512;
     39 
     40 // A helper class for easily mocking out Network*Handler calls for tests.
     41 class NetworkStateHelper {
     42  public:
     43   NetworkStateHelper();
     44   virtual ~NetworkStateHelper();
     45 
     46   // Returns name of the currently connected network.
     47   // If there are no connected networks, returns name of the network
     48   // that is in the "connecting" state. Otherwise empty string is returned.
     49   // If there are multiple connected networks, network priority:
     50   // Ethernet > WiFi > Cellular. Same for connecting network.
     51   virtual base::string16 GetCurrentNetworkName() const;
     52 
     53   // Returns true if the default network is in connected state.
     54   virtual bool IsConnected() const;
     55 
     56   // Returns true if the default network is in connecting state.
     57   virtual bool IsConnecting() const;
     58 
     59  private:
     60   DISALLOW_COPY_AND_ASSIGN(NetworkStateHelper);
     61 };
     62 
     63 }  // namespace login
     64 
     65 }  // namespace chromeos
     66 
     67 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_HELPER_H_
     68