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Hey guys,
I need your help :).
My module “Pictures” can show any kind of pictures, located on a mounted network drive. On startup node_helper mounts a specific drive, then it scans this folder every two seconds (it could be any other value) and write all filenames in a text file. Pictures imports and filters this file. At the end it generates a slideshow.
Now I want to implement pdf files in the same way. Actually it works with a little workaround but I’m not happy with that. I have to start MagicMirror and additionally I have to start another browser (unfortunatelly “node serveronly” doesn’t work) on the pi to show pdf files with the integrated plugin.
For that I have several questions^^:
Is there a possibility to show pdf files native in my module?
My slideshow is a little laggy on the pi (3B). Any PC with the same network connection shows the same slideshow in browser with perfect performance. Can I improve my slideshow performance anyhow?
I have a problem to run “node serveronly” with raspian stretch an the new MagicMirror 2.3.1. I can start but as soon as I connect to the pi by IP:8080 my module generates -75 errors. This won’t happen if MagicMirror runs with “npm start”.
Best regards
flash
node_helper.js
var request = require('request');
var NodeHelper = require("node_helper");
const exec = require('child_process').exec;
module.exports = NodeHelper.create({
start: function() {
this.started = false;
},
socketNotificationReceived: function(notification, payload) {
if (notification === "CONFIG" && this.started == false) {
this.config = payload;
// mounting network drive
exec("/usr/bin/sudo mount -t cifs -o user=" + this.config.user + ",password=" + this.config.password + " " + this.config.source + " /home/pi/MagicMirror/modules/Pictures/images", null);
this.started = true;
}
if (notification === "GET_PICTURE_DATA" && this.started) {
var path = "/home/pi/MagicMirror/modules/Pictures/images/"+ this.config.folder + "/";
var opt1 = '-type f ! -path "/home/pi/MagicMirror/modules/Pictures/images/' + this.config.folder + '/.thumb/*" | awk -F"/"'
var opt2 = '{print $NF"/" }';
var opt3 = '| sort > ~/MagicMirror/modules/Pictures/files.txt';
exec("find " + "'" + path + "' " + opt1 + " '" + opt2 + "' " + opt3, null);
this.getData(payload);
}
},
getData: function(options) {
request(options, (error, response, body) => {
this.sendSocketNotification("PICTURE_DATA", body);
});
}
});
Pictures.js
var showPicture = 0;
var textdata = [];
var textdataHelp = [];
var findExt = [];
Module.register("Pictures",{
defaults: {
loadingText: 'Lade SlideShow...',
pictureInterval: 20 * 1000,
},
start: function() {
Log.info("Starting module: " + this.name);
this.loaded = false;
this.sendSocketNotification('CONFIG', this.config);
this.locationSelf = window.location.href;
this.file = 'modules/Pictures/files.txt';
setTimeout(this.updateFiles, 2000, this);
},
socketNotificationReceived: function(notification, payload){
if(notification === 'PICTURE_DATA' && payload !== null){
this.loaded = false;
textdataHelp = payload.split("/\n");
if (textdataHelp[0] !== ""){
textdata = []; // textdata will not be cleared, if helper has no content
}
for (i = 0; i textdata.length - 1) {
showPicture = 0;
}
self.updateDom(1000);
showPicture++;
}
},
getDom: function() {
var wrapper = document.createElement("div");
var pictureInfo = document.createElement('table');
if (!this.loaded) {
wrapper.innerHTML = this.config.loadingText;
return wrapper;
}
var currCount = showPicture + 1;
var tableHead = document.createElement('tr');
tableHead.className = 'normal small';
var y = 0
findExt = textdata[showPicture].split(".");
for (i = 0; i 0){
//tableHead.innerHTML = '<br />' + currCount + '/' + textdata.length;
tableHead.innerHTML = '<br />' + currCount + '/' + textdata.length;
}else{
tableHead.innerHTML = '<img src="' + this.locationSelf + 'modules/Pictures/images/' + this.config.folder + '/' + textdata[showPicture] +'" alt="Vorschau" /><br />' + currCount + '/' + textdata.length;
}
y = 0;
findExt = [];
pictureInfo.appendChild(tableHead);
wrapper.appendChild(pictureInfo);
return wrapper;
},
});
