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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 <string>
     11 
     12 #include "base/compiler_specific.h"
     13 #include "base/strings/string16.h"
     14 #include "third_party/skia/include/core/SkColor.h"
     15 #include "ui/views/view.h"
     16 
     17 class GURL;
     18 
     19 namespace gfx {
     20 class Rect;
     21 class Size;
     22 }  // namespace gfx
     23 
     24 namespace chromeos {
     25 
     26 // Returns bounds of the screen to use for login wizard.
     27 // The rect is centered within the default monitor and sized accordingly if
     28 // |size| is not empty. Otherwise the whole monitor is occupied.
     29 gfx::Rect CalculateScreenBounds(const gfx::Size& size);
     30 
     31 // Returns the size of user image required for proper display under current DPI.
     32 int GetCurrentUserImageSize();
     33 
     34 // Define the constants in |login| namespace to avoid potential
     35 // conflict with other chromeos components.
     36 namespace login {
     37 
     38 // Maximum size of user image, in which it should be saved to be properly
     39 // displayed under all possible DPI values.
     40 const int kMaxUserImageSize = 512;
     41 
     42 // Returns true if lock/login should scroll user pods into view itself when
     43 // virtual keyboard is shown and disable vk overscroll.
     44 bool LoginScrollIntoViewEnabled();
     45 
     46 // A helper class for easily mocking out Network*Handler calls for tests.
     47 class NetworkStateHelper {
     48  public:
     49   NetworkStateHelper();
     50   virtual ~NetworkStateHelper();
     51 
     52   // Returns name of the currently connected network.
     53   // If there are no connected networks, returns name of the network
     54   // that is in the "connecting" state. Otherwise empty string is returned.
     55   // If there are multiple connected networks, network priority:
     56   // Ethernet > WiFi > Cellular. Same for connecting network.
     57   virtual base::string16 GetCurrentNetworkName() const;
     58 
     59   // Returns true if the default network is in connected state.
     60   virtual bool IsConnected() const;
     61 
     62   // Returns true if the default network is in connecting state.
     63   virtual bool IsConnecting() const;
     64 
     65  private:
     66   DISALLOW_COPY_AND_ASSIGN(NetworkStateHelper);
     67 };
     68 
     69 }  // namespace login
     70 
     71 }  // namespace chromeos
     72 
     73 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_HELPER_H_
     74