Tizen.Applications/Tizen.Applications/Application.cs

   1 /// Copyright 2016 by Samsung Electronics, Inc.,
   2 ///
   3 /// This software is the confidential and proprietary information
   4 /// of Samsung Electronics, Inc. ("Confidential Information"). You
   5 /// shall not disclose such Confidential Information and shall use
   6 /// it only in accordance with the terms of the license agreement
   7 /// you entered into with Samsung.
   8
   9
  10 using System;
  11
  12 namespace Tizen.Applications
  13 {
  14     /// <summary>
  15     /// The Application handles an application state change or system events and provides mechanisms that launch other applications.
  16     /// </summary>
  17     public abstract class Application
  18     {
  19         private static Application s_CurrentApplication = null;
  20
  21         private Interop.AppEvent.SafeAppEventHandle _lowMemoryNativeHandle;
  22         private Interop.AppEvent.SafeAppEventHandle _localeChangedNativeHandle;
  23
  24         /// <summary>
  25         /// The low memory event.
  26         /// </summary>
  27         public event EventHandler<LowMemoryEventArgs> LowMemory;
  28
  29         /// <summary>
  30         /// The system language changed event.
  31         /// </summary>
  32         public event EventHandler<LocaleChangedEventArgs> LocaleChanged;
  33
  34         /// <summary>
  35         ///
  36         /// </summary>
  37         public static Application Current { get { return s_CurrentApplication; } }
  38
  39         /// <summary>
  40         ///
  41         /// </summary>
  42         public ApplicationInfo ApplicationInfo { get; internal set; }
  43
  44         /// <summary>
  45         /// Runs the application's main loop.
  46         /// </summary>
  47         /// <param name="args"></param>
  48         public virtual void Run(string[] args)
  49         {
  50             s_CurrentApplication = this;
  51
  52             Interop.AppEvent.AddEventHandler(Interop.AppEvent.EventNames.LowMemory, HandleAppEvent, IntPtr.Zero, out _lowMemoryNativeHandle);
  53             Interop.AppEvent.AddEventHandler(Interop.AppEvent.EventNames.LanguageSet, HandleAppEvent, IntPtr.Zero, out _localeChangedNativeHandle);
  54         }
  55
  56         /// <summary>
  57         /// Exits the main loop of application.
  58         /// </summary>
  59         public abstract void Exit();
  60
  61         /// <summary>
  62         ///
  63         /// </summary>
  64         protected virtual void OnCreate()
  65         {
  66         }
  67
  68         /// <summary>
  69         ///
  70         /// </summary>
  71         protected virtual void OnTerminate()
  72         {
  73         }
  74
  75         /// <summary>
  76         ///
  77         /// </summary>
  78         /// <param name="control"></param>
  79         protected virtual void OnAppControlReceived(ReceivedAppControl control)
  80         {
  81         }
  82
  83         /// <summary>
  84         ///
  85         /// </summary>
  86         /// <param name="e"></param>
  87         protected virtual void OnLowMemory(LowMemoryEventArgs e)
  88         {
  89             EventHandler<LowMemoryEventArgs> eh = LowMemory;
  90             if (eh != null)
  91             {
  92                 eh(this, e);
  93             }
  94         }
  95
  96         /// <summary>
  97         ///
  98         /// </summary>
  99         /// <param name="e"></param>
 100         protected virtual void OnLocaleChanged(LocaleChangedEventArgs e)
 101         {
 102             EventHandler<LocaleChangedEventArgs> eh = LocaleChanged;
 103             if (eh != null)
 104             {
 105                 eh(this, e);
 106             }
 107         }
 108
 109         internal void SendCreate()
 110         {
 111             ApplicationInfo = new ApplicationInfo();
 112             OnCreate();
 113         }
 114
 115         private void HandleAppEvent(string eventName, IntPtr eventData, IntPtr data)
 116         {
 117             Console.WriteLine("HandleAppEvent!! eventName={0}, eventData={1}", eventName, eventData);
 118             Bundle b = new Bundle(eventData);
 119             if (eventName == Interop.AppEvent.EventNames.LowMemory)
 120             {
 121                 string value = b.GetItem<string>(Interop.AppEvent.EventKeys.LowMemory);
 122                 LowMemoryStatus status = LowMemoryStatus.Normal;
 123                 if (value == Interop.AppEvent.EventValues.MemorySoftWarning)
 124                 {
 125                     status = LowMemoryStatus.SoftWarning;
 126                 }
 127                 else if (value == Interop.AppEvent.EventValues.MemoryHardWarning)
 128                 {
 129                     status = LowMemoryStatus.HardWarning;
 130                 }
 131                 OnLowMemory(new LowMemoryEventArgs { LowMemoryStatus = status });
 132             }
 133             else if (eventName == Interop.AppEvent.EventNames.LanguageSet)
 134             {
 135                 string value = b.GetItem<string>(Interop.AppEvent.EventKeys.LanguageSet);
 136                 OnLocaleChanged(new LocaleChangedEventArgs { Locale = value });
 137             }
 138         }
 139     }
 140 }