StephaneLenclud@193: //
StephaneLenclud@193: // Copyright (C) 2014-2016 Stéphane Lenclud.
StephaneLenclud@193: //
StephaneLenclud@193: // This file is part of SharpDisplayManager.
StephaneLenclud@193: //
StephaneLenclud@193: // SharpDisplayManager is free software: you can redistribute it and/or modify
StephaneLenclud@193: // it under the terms of the GNU General Public License as published by
StephaneLenclud@193: // the Free Software Foundation, either version 3 of the License, or
StephaneLenclud@193: // (at your option) any later version.
StephaneLenclud@193: //
StephaneLenclud@193: // SharpDisplayManager is distributed in the hope that it will be useful,
StephaneLenclud@193: // but WITHOUT ANY WARRANTY; without even the implied warranty of
StephaneLenclud@193: // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
StephaneLenclud@193: // GNU General Public License for more details.
StephaneLenclud@193: //
StephaneLenclud@193: // You should have received a copy of the GNU General Public License
StephaneLenclud@193: // along with SharpDisplayManager.  If not, see <http://www.gnu.org/licenses/>.
StephaneLenclud@193: //
StephaneLenclud@193: 
StephaneLenclud@193: using System;
StephaneLenclud@192: using System.Collections.Generic;
StephaneLenclud@192: using System.ComponentModel;
StephaneLenclud@192: using System.Data;
StephaneLenclud@192: using System.Drawing;
StephaneLenclud@192: using System.Linq;
StephaneLenclud@192: using System.Text;
StephaneLenclud@192: using System.Threading.Tasks;
StephaneLenclud@192: using System.Windows.Forms;
StephaneLenclud@193: using System.Diagnostics;
StephaneLenclud@193: using SharpLib.Display;
StephaneLenclud@193: 
StephaneLenclud@192: 
StephaneLenclud@225: namespace SharpDisplayClientIdle
StephaneLenclud@192: {
StephaneLenclud@193: 
StephaneLenclud@193:     /// <summary>
StephaneLenclud@193:     /// Sharp Display Client designed to act as an idle client.
StephaneLenclud@193:     /// It should take care of screen saving and other such concerns.
StephaneLenclud@193:     /// </summary>
StephaneLenclud@192:     public partial class FormClientIdle : Form
StephaneLenclud@192:     {
StephaneLenclud@192:         public StartParams Params { get; set; }
StephaneLenclud@192: 
StephaneLenclud@193:         Client iClient;
StephaneLenclud@193:         ContentAlignment iAlignment;
StephaneLenclud@193:         TextField iTextField;
Stephane@197:         //Used to determine if screen saver need to kick in
Stephane@197:         private PowerManager.SettingNotifier iPowerSettingNotifier;
Stephane@197:         private bool MonitorPowerOn;
StephaneLenclud@193: 
StephaneLenclud@193:         public delegate void CloseDelegate();
StephaneLenclud@193:         public delegate void CloseConnectionDelegate();
StephaneLenclud@193: 
StephaneLenclud@193: 
StephaneLenclud@192:         public FormClientIdle()
StephaneLenclud@192:         {
StephaneLenclud@192:             InitializeComponent();
StephaneLenclud@192:         }
StephaneLenclud@193: 
StephaneLenclud@193:         /// <summary>
StephaneLenclud@193:         /// 
StephaneLenclud@193:         /// </summary>
StephaneLenclud@193:         /// <param name="sender"></param>
StephaneLenclud@193:         /// <param name="e"></param>
StephaneLenclud@193:         private void FormClientIdle_Load(object sender, EventArgs e)
StephaneLenclud@193:         {
StephaneLenclud@196:             //Prevents showing in the Open Task view (Windows Key + Tab)
StephaneLenclud@196:             Visible = false;
StephaneLenclud@196: 
StephaneLenclud@193:             //Display client
StephaneLenclud@193:             iClient = new Client();
StephaneLenclud@193:             iClient.CloseOrderEvent += OnCloseOrder;
StephaneLenclud@193:             iClient.Open();
StephaneLenclud@193:             iClient.SetName("Idle");
StephaneLenclud@194:             iClient.SetPriority(Priorities.Background);
StephaneLenclud@193:             SetupDisplayClient();
StephaneLenclud@193: 
StephaneLenclud@193:             //Timer
StephaneLenclud@193:             iTimer.Interval = IntervalToNextMinute();
StephaneLenclud@193:             iTimer.Start();
Stephane@197: 
Stephane@197:             //Create our power setting notifier and register the event we are interested in
Stephane@197:             iPowerSettingNotifier = new PowerManager.SettingNotifier(Handle);
Stephane@197:             iPowerSettingNotifier.OnMonitorPowerOn += OnMonitorPowerOn;
Stephane@197:             iPowerSettingNotifier.OnMonitorPowerOff += OnMonitorPowerOff;
Stephane@197:             MonitorPowerOn = true;
Stephane@197: 
StephaneLenclud@193:         }
StephaneLenclud@193: 
StephaneLenclud@193:         /// <summary>
Stephane@197:         /// Broadcast messages to subscribers.
Stephane@197:         /// </summary>
Stephane@197:         /// <param name="message"></param>
Stephane@197:         protected override void WndProc(ref Message aMessage)
Stephane@197:         {
Stephane@197:             //Hook in our power manager
Stephane@197:             if (iPowerSettingNotifier != null)
Stephane@197:             {
Stephane@197:                 iPowerSettingNotifier.WndProc(ref aMessage);
Stephane@197:             }
Stephane@197: 
Stephane@197:             base.WndProc(ref aMessage);
Stephane@197:         }
Stephane@197: 
Stephane@197: 
Stephane@197: 
Stephane@197:         /// <summary>
Stephane@197:         /// 
Stephane@197:         /// </summary>
Stephane@197:         private void OnMonitorPowerOn()
Stephane@197:         {
Stephane@197:             MonitorPowerOn = true;
Stephane@197:             UpdateDisplay();
Stephane@197:         }
Stephane@197: 
Stephane@197:         /// <summary>
Stephane@197:         /// 
Stephane@197:         /// </summary>
Stephane@197:         private void OnMonitorPowerOff()
Stephane@197:         {
Stephane@197:             MonitorPowerOn = false;
Stephane@197:             UpdateDisplay();
Stephane@197:         }
Stephane@197: 
Stephane@197: 
Stephane@197:         /// <summary>
StephaneLenclud@193:         /// 
StephaneLenclud@193:         /// </summary>
StephaneLenclud@193:         /// <returns></returns>
StephaneLenclud@193:         public static int IntervalToNextMinute()
StephaneLenclud@193:         {
StephaneLenclud@193:             DateTime now = DateTime.Now;
StephaneLenclud@193:             return 60000 - now.Millisecond;
StephaneLenclud@193:         }
StephaneLenclud@193: 
StephaneLenclud@193: 
StephaneLenclud@193:         /// <summary>
StephaneLenclud@193:         /// 
StephaneLenclud@193:         /// </summary>
StephaneLenclud@193:         /// <returns></returns>
StephaneLenclud@193:         public bool IsClientReady()
StephaneLenclud@193:         {
StephaneLenclud@193:             return (iClient != null && iClient.IsReady());
StephaneLenclud@193:         }
StephaneLenclud@193: 
StephaneLenclud@193:         /// <summary>
StephaneLenclud@193:         /// 
StephaneLenclud@193:         /// </summary>
StephaneLenclud@193:         public void SetupDisplayClient()
StephaneLenclud@193:         {
StephaneLenclud@193:             //Setup our layout
StephaneLenclud@193: 
StephaneLenclud@193:             //Set one column one line layout
StephaneLenclud@193:             TableLayout layout = new TableLayout(1, 1);
StephaneLenclud@193:             iClient.SetLayout(layout);
StephaneLenclud@193: 
StephaneLenclud@193:             //Setup our fields
StephaneLenclud@193:             iAlignment = ContentAlignment.MiddleCenter;
StephaneLenclud@193:             iTextField = new TextField(DateTime.Now.ToString("t"), iAlignment, 0, 0);
StephaneLenclud@193: 
StephaneLenclud@193:             //Set our fields
StephaneLenclud@193:             iClient.CreateFields(new DataField[]
StephaneLenclud@193:             {
StephaneLenclud@193:                 iTextField
StephaneLenclud@193:             });
StephaneLenclud@193:         }
StephaneLenclud@193: 
StephaneLenclud@193:         public void OnCloseOrder()
StephaneLenclud@193:         {
StephaneLenclud@193:             CloseThreadSafe();
StephaneLenclud@193:         }
StephaneLenclud@193: 
StephaneLenclud@193:         /// <summary>
StephaneLenclud@193:         ///
StephaneLenclud@193:         /// </summary>
StephaneLenclud@193:         public void CloseThreadSafe()
StephaneLenclud@193:         {
StephaneLenclud@193:             if (this.InvokeRequired)
StephaneLenclud@193:             {
StephaneLenclud@193:                 //Not in the proper thread, invoke ourselves
StephaneLenclud@193:                 CloseDelegate d = new CloseDelegate(CloseThreadSafe);
StephaneLenclud@193:                 this.Invoke(d, new object[] { });
StephaneLenclud@193:             }
StephaneLenclud@193:             else
StephaneLenclud@193:             {
StephaneLenclud@193:                 //We are in the proper thread
StephaneLenclud@193:                 Close();
StephaneLenclud@193:             }
StephaneLenclud@193:         }
StephaneLenclud@193: 
StephaneLenclud@193:         /// <summary>
StephaneLenclud@193:         ///
StephaneLenclud@193:         /// </summary>
StephaneLenclud@193:         public void CloseConnectionThreadSafe()
StephaneLenclud@193:         {
StephaneLenclud@193:             if (this.InvokeRequired)
StephaneLenclud@193:             {
StephaneLenclud@193:                 //Not in the proper thread, invoke ourselves
StephaneLenclud@193:                 CloseConnectionDelegate d = new CloseConnectionDelegate(CloseConnectionThreadSafe);
StephaneLenclud@193:                 this.Invoke(d, new object[] { });
StephaneLenclud@193:             }
StephaneLenclud@193:             else
StephaneLenclud@193:             {
StephaneLenclud@193:                 //We are in the proper thread
StephaneLenclud@193:                 if (IsClientReady())
StephaneLenclud@193:                 {
StephaneLenclud@193:                     string sessionId = iClient.SessionId;
StephaneLenclud@193:                     Trace.TraceInformation("Closing client: " + sessionId);
StephaneLenclud@193:                     iClient.Close();
StephaneLenclud@193:                     Trace.TraceInformation("Closed client: " + sessionId);
StephaneLenclud@193:                 }
StephaneLenclud@193: 
StephaneLenclud@193:                 iClient = null;
StephaneLenclud@193:             }
StephaneLenclud@193:         }
StephaneLenclud@193: 
StephaneLenclud@193:         /// <summary>
StephaneLenclud@193:         /// 
StephaneLenclud@193:         /// </summary>
StephaneLenclud@193:         /// <param name="sender"></param>
StephaneLenclud@193:         /// <param name="e"></param>
StephaneLenclud@193:         private void FormClientIdle_FormClosing(object sender, FormClosingEventArgs e)
StephaneLenclud@193:         {
StephaneLenclud@193:             CloseConnectionThreadSafe();
StephaneLenclud@193:         }
StephaneLenclud@193: 
StephaneLenclud@193: 
StephaneLenclud@193:         /// <summary>
StephaneLenclud@193:         /// 
StephaneLenclud@193:         /// </summary>
StephaneLenclud@193:         /// <param name="sender"></param>
StephaneLenclud@193:         /// <param name="e"></param>
StephaneLenclud@193:         private void iTimer_Tick(object sender, EventArgs e)
StephaneLenclud@193:         {
StephaneLenclud@193:             //Timer
StephaneLenclud@193:             iTimer.Interval = IntervalToNextMinute();
StephaneLenclud@193:             iTimer.Start();
StephaneLenclud@193: 
Stephane@197:             UpdateDisplay();
Stephane@197: 
Stephane@197:         }
Stephane@197: 
Stephane@197:         /// <summary>
Stephane@197:         /// 
Stephane@197:         /// </summary>
Stephane@197:         private void UpdateDisplay()
Stephane@197:         {
StephaneLenclud@193:             //
StephaneLenclud@193:             if (String.IsNullOrEmpty(iTextField.Text))
StephaneLenclud@193:             {
StephaneLenclud@193:                 //Time to show our time
StephaneLenclud@193:                 iTextField.Text = DateTime.Now.ToString("t");
StephaneLenclud@193:             }
StephaneLenclud@193:             else
StephaneLenclud@193:             {
StephaneLenclud@194:                 //Do some screen saving                
StephaneLenclud@193:                 iTextField.Text = "";
StephaneLenclud@193:             }
StephaneLenclud@193: 
StephaneLenclud@193:             // Update our field
StephaneLenclud@193:             iClient.SetField(iTextField);
StephaneLenclud@194: 
StephaneLenclud@194:             //Now make sure we save our screen from any running system monitor
Stephane@197:             //We don't go into screen saving mode if our monitor is still on
Stephane@197:             if (String.IsNullOrEmpty(iTextField.Text) && !MonitorPowerOn)
StephaneLenclud@194:             {
StephaneLenclud@194:                 //If text it empty it means we need to cool down our display even if system monitor is running
StephaneLenclud@194:                 iClient.SetPriority(Priorities.SystemMonitor + 1);
StephaneLenclud@194:             }
StephaneLenclud@194:             else
StephaneLenclud@194:             {
StephaneLenclud@194:                 //Switch back to background then, leaving system monitor if any doing its magic
StephaneLenclud@194:                 iClient.SetPriority(Priorities.Background);
StephaneLenclud@194:             }
StephaneLenclud@193:         }
StephaneLenclud@193: 
Stephane@197:         /// <summary>
Stephane@197:         /// 
Stephane@197:         /// </summary>
Stephane@197:         /// <param name="sender"></param>
Stephane@197:         /// <param name="e"></param>
StephaneLenclud@193:         private void FormClientIdle_Shown(object sender, EventArgs e)
StephaneLenclud@193:         {
StephaneLenclud@193:             //Visible = false;
StephaneLenclud@193:         }
StephaneLenclud@192:     }
StephaneLenclud@193: 
StephaneLenclud@192: }