43 lines
1.6 KiB
JavaScript
43 lines
1.6 KiB
JavaScript
//This file is only for saving the whiteboard. (Not to a file, only to RAM atm. Whiteboard is gone after server restart)
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var savedBoards = {};
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module.exports = {
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handleEventsAndData : function(content) {
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var tool = content["t"]; //Tool witch is used
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var wid = content["wid"]; //whiteboard ID
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var username = content["username"];
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if(tool==="clear") { //Clear the whiteboard
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delete savedBoards[wid];
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} else if(tool==="undo") { //Undo an action
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if(savedBoards[wid]) {
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for(var i=savedBoards[wid].length-1;i>=0;i--){
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if(savedBoards[wid][i]["username"]==username) {
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var drawId = savedBoards[wid][i]["drawId"];
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for(var i=savedBoards[wid].length-1;i>=0;i--){
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if(savedBoards[wid][i]["drawId"]==drawId && savedBoards[wid][i]["username"]==username) {
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savedBoards[wid].splice(i, 1);
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}
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}
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break;
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}
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}
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}
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} else if(["line", "pen", "rect", "circle", "eraser", "addImgBG", "recSelect", "eraseRec", "addTextBox", "setTextboxText", "removeTextbox"].includes(tool)) { //Save all this actions
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if(!savedBoards[wid]) {
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savedBoards[wid] = [];
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}
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delete content["wid"]; //Delete id from content so we don't store it twice
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if(tool==="setTextboxText") {
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for(var i=savedBoards[wid].length-1;i>=0;i--){ //Remove old textbox tex -> dont store it twice
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if(savedBoards[wid][i]["t"]==="setTextboxText" && savedBoards[wid][i]["d"][0]===content["d"][0]) {
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savedBoards[wid].splice(i,1);
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}
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}
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}
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savedBoards[wid].push(content);
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}
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},
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loadStoredData : function(wid) { //Load saved whiteboard
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return savedBoards[wid] ? savedBoards[wid] : [];
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}
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} |