Introduced separate config files for screen configuration.

Fixes LukeSkywalker92#2

README.md

@@ -71,6 +71,7 @@ The following properties can be configured:
 | -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `botToken`           | The token of the Telegram Bot, which will recieve the images. How to create a bot and get the token is explained [here](https://core.telegram.org/bots#6-botfather). |
 | `whitelistChats`     | Use this to only allow certain users to send photos to your TeleFrame. See hints below.                                                                              |
+| `screenConfig`       | Points to the configuration file of your screen, see folder TeleFrame/config/screens for possible configurations. Default: config/screens/hdmi_standard.js           |
 | `playSoundOnRecieve` | Play a sound on recieving a message, set `false` to turn off.                                                                                                        |
 | `showVideos`         | When set to true, videos that are send to the bot are also shown.                                                                                                    |
 | `playVideoAudio`     | If recieved videos should be played with sound or not.                                                                                                               |

config/config.example.js

@@ -1,6 +1,7 @@
 var config = {
   botToken: "",
   whitelistChats: [],
+  screenConfig: "./config/screens/dsi_raspberry_7inch.js",  
   playSoundOnRecieve: "sound1.mp3",
   showVideos: true,
   playVideoAudio: false,

config/screens/dsi_raspberry_7inch.js

@@ -0,0 +1,21 @@
+/*
+ * settings for the official Raspberry Pi 7'' screen connected via DSI
+ *
+ */
+var screen = {
+    name: "Raspberry Pi 7'' DSI screen",
+    xres: 800,
+    yres: 480,
+    hasTouch: true,
+    hasBacklightCtl: true,
+    hasBacklightDimming: true,
+    cmdInit: "sudo chmod 666 /sys/class/backlight/rpi_backlight/bl_power /sys/class/backlight/rpi_backlight/brightness",
+    cmdBacklightOff: "sudo echo 1 > /sys/class/backlight/rpi_backlight/bl_power",
+    cmdBacklightOn:  "sudo echo 0 > /sys/class/backlight/rpi_backlight/bl_power",
+    cmdBacklightDimming: "sudo echo %% >/sys/class/backlight/rpi_backlight/brightness",
+};
+
+/*************** DO NOT EDIT THE LINE BELOW ***************/
+if (typeof module !== "undefined") {
+  module.exports = screen;
+}

config/screens/hdmi_default.js

@@ -0,0 +1,21 @@
+/*
+ * settings for standard screen connected via HDMI
+ *
+ */
+var screen = {
+    name: "Standard HDMI screen",
+    xres: 1024,
+    yres: 600,
+    hasTouch: true,
+    hasBacklightCtl: true,
+    hasBacklightDimming: false,
+    cmdInit: "",
+    cmdBacklightOff: "tvservice -o",
+    cmdBacklightOn:  "tvservice --preferred && sudo chvt 6 && sudo chvt 7",
+    cmdBacklightDimming: "",
+};
+
+/*************** DO NOT EDIT THE LINE BELOW ***************/
+if (typeof module !== "undefined") {
+  module.exports = screen;
+}

js/schedules.js

@@ -2,13 +2,21 @@ var schedule = require('node-schedule');
 const exec = require("child_process").exec;
 
 var schedules = class {
-  constructor(config, logger) {
+    constructor(config, screen, logger) {
     this.turnOnHour = config.turnOnHour;
     this.turnOffHour = config.turnOffHour;
+    this.screen = screen;
     this.logger = logger;
     this.opts = {timeout: 15000};
     var self = this;
 
+    // initialize the monitor control if required
+    if(this.screen.cmdInit.length >0){
+	exec(this.screen.cmdInit , this.opts, function(error, stdout, stderr) {
+        self.checkForExecError(error, stdout, stderr);
+      });
+    }
+
     //generate schedule for turning the monitor on
     this.monitorOnSchedule = schedule.scheduleJob('* * ' + this.turnOnHour.toString() + ' * * *', function() {
       self.turnMonitorOn();
@@ -26,15 +34,15 @@ var schedules = class {
   //execute command for turning the monitor on
   turnMonitorOn() {
     var self = this;
-    exec("tvservice --preferred && sudo chvt 6 && sudo chvt 7", self.opts, function(error, stdout, stderr) {
+    exec(self.screen.cmdBacklightOn, self.opts, function(error, stdout, stderr) {
       self.checkForExecError(error, stdout, stderr);
     });
   }
 
   //execute command for turning the monitor off
   turnMonitorOff() {
-var self = this;
-    exec("tvservice -o", self.opts, function(error, stdout, stderr) {
+    var self = this;
+    exec(self.screen.cmdBacklightOff, self.opts, function(error, stdout, stderr) {
       self.checkForExecError(error, stdout, stderr);
     });
   }

main.js

@@ -1,6 +1,17 @@
 const { app, BrowserWindow, ipcMain } = require("electron");
 const { logger, rendererLogger } = require("./js/logger");
 const config = require("./config/config");
+
+var myscreenConfig="";
+if(config.hasOwnProperty("screenConfig"))
+{
+    myscreenConfig = config.screenConfig;
+}else{
+    myscreenConfig = "./config/screens/hdmi_default";
+}
+const screen = require(myscreenConfig);
+logger.info("Configuring for: " +  screen.name + " (" + myscreenConfig + ")");
+
 const telebot = require("./js/bot");
 const imagewatcher = require("./js/imageWatchdog");
 const inputhandler = require("./js/inputHandler");
@@ -9,6 +20,7 @@ const schedules = require("./js/schedules");
 
 //create global variables
 global.config = config;
+global.screen = screen;
 global.rendererLogger = rendererLogger;
 global.images = [];
 
@@ -67,7 +79,7 @@ function createWindow() {
   // generate scheduler, when times for turning monitor off and on
   // are given in the config file
   if (config.toggleMonitor) {
-    var scheduler = new schedules(config, logger);
+    var scheduler = new schedules(config, screen, logger);
   }
 
   // Open the DevTools.