663 lines
25 KiB
JavaScript
663 lines
25 KiB
JavaScript
var whiteboardId = getQueryVariable("whiteboardid");
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whiteboardId = whiteboardId || "myNewWhiteboard";
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whiteboardId = unescape(encodeURIComponent(whiteboardId)).replace(/[^a-zA-Z0-9 ]/g, "");
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var myUsername = getQueryVariable("username");
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var accessToken = getQueryVariable("accesstoken");
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myUsername = myUsername || "unknown" + (Math.random() + "").substring(2, 6);
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accessToken = accessToken || "";
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var accessDenied = false;
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var url = document.URL.substr(0, document.URL.lastIndexOf('/'));
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var signaling_socket = null;
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var urlSplit = url.split("/");
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var subdir = "";
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for (var i = 3; i < urlSplit.length; i++) {
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subdir = subdir + '/' + urlSplit[i];
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}
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if (subdir != "") {
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signaling_socket = io("", { "path": subdir + "/socket.io" }); //Connect even if we are in a subdir behind a reverse proxy
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} else {
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signaling_socket = io();
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}
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signaling_socket.on('connect', function () {
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console.log("Websocket connected!");
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signaling_socket.on('drawToWhiteboard', function (content) {
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whiteboard.handleEventsAndData(content, true);
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});
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signaling_socket.on('refreshUserBadges', function () {
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whiteboard.refreshUserBadges();
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});
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signaling_socket.on('wrongAccessToken', function () {
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if (!accessDenied) {
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accessDenied = true;
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showBasicAlert("Access denied! Wrong accessToken!")
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}
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});
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signaling_socket.on('updateSmallestScreenResolution', function (widthHeight) {
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whiteboard.updateSmallestScreenResolution(widthHeight["w"], widthHeight["h"]);
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});
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signaling_socket.emit('joinWhiteboard', { wid: whiteboardId, at: accessToken, windowWidthHeight: { w: $(window).width(), h: $(window).height() } });
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});
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$(document).ready(function () {
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if (getQueryVariable("webdav") == "true") {
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$("#uploadWebDavBtn").show();
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}
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whiteboard.loadWhiteboard("#whiteboardContainer", { //Load the whiteboard
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whiteboardId: whiteboardId,
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username: btoa(myUsername),
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sendFunction: function (content) {
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content["at"] = accessToken;
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signaling_socket.emit('drawToWhiteboard', content);
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}
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});
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// request whiteboard from server
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$.get(subdir + "/loadwhiteboard", { wid: whiteboardId, at: accessToken }).done(function (data) {
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whiteboard.loadData(data)
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});
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$(window).resize(function () {
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signaling_socket.emit('updateScreenResolution', { at: accessToken, windowWidthHeight: { w: $(window).width(), h: $(window).height() } });
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})
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/*----------------/
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Whiteboard actions
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/----------------*/
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//Handle key actions
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$(document).on("keydown", function (e) {
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if (e.which == 16) {
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whiteboard.pressedKeys["shift"] = true; //Used for straight lines...
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}
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//console.log(e.which);
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});
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$(document).on("keyup", function (e) {
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if (e.which == 16) {
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whiteboard.pressedKeys["shift"] = false;
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}
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});
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var shortcutFunctions = {
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clearWhiteboard: function () { whiteboard.clearWhiteboard(); },
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undoStep: function () { whiteboard.undoWhiteboardClick(); },
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setTool_mouse: function () { $(".whiteboardTool[tool=mouse]").click(); },
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setTool_recSelect: function () { $(".whiteboardTool[tool=recSelect]").click(); },
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setTool_pen: function () {
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$(".whiteboardTool[tool=pen]").click();
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whiteboard.redrawMouseCursor();
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},
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setTool_line: function () { $(".whiteboardTool[tool=line]").click(); },
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setTool_rect: function () { $(".whiteboardTool[tool=rect]").click(); },
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setTool_circle: function () { $(".whiteboardTool[tool=circle]").click(); },
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setTool_text: function () { $(".whiteboardTool[tool=text]").click(); },
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setTool_eraser: function () {
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$(".whiteboardTool[tool=eraser]").click();
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whiteboard.redrawMouseCursor();
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},
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thickness_bigger: function () {
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var thickness = parseInt($("#whiteboardThicknessSlider").val()) + 1;
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$("#whiteboardThicknessSlider").val(thickness);
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whiteboard.setStrokeThickness(thickness);
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whiteboard.redrawMouseCursor();
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},
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thickness_smaller: function () {
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var thickness = parseInt($("#whiteboardThicknessSlider").val()) - 1;
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$("#whiteboardThicknessSlider").val(thickness);
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whiteboard.setStrokeThickness(thickness);
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whiteboard.redrawMouseCursor();
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},
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openColorPicker: function () { $("#whiteboardColorpicker").click(); },
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saveWhiteboardAsImage: function () { $("#saveAsImageBtn").click(); },
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saveWhiteboardAsJson: function () { $("#saveAsJSONBtn").click(); },
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uploadWhiteboardToWebDav: function () { $("#uploadWebDavBtn").click(); },
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uploadJsonToWhiteboard: function () { $("#uploadJsonBtn").click(); },
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shareWhiteboard: function () { $("#shareWhiteboardBtn").click(); },
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hideShowControls: function () { $("#minMaxBtn").click(); },
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setDrawColorBlack: function () {
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whiteboard.setDrawColor("black");
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whiteboard.redrawMouseCursor();
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$("#whiteboardColorpicker").css({ "background": "black" });
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},
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setDrawColorRed: function () {
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whiteboard.setDrawColor("red");
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whiteboard.redrawMouseCursor();
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$("#whiteboardColorpicker").css({ "background": "red" });
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},
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setDrawColorGreen: function () {
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whiteboard.setDrawColor("green");
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whiteboard.redrawMouseCursor();
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$("#whiteboardColorpicker").css({ "background": "green" });
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},
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setDrawColorBlue: function () {
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whiteboard.setDrawColor("blue");
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whiteboard.redrawMouseCursor();
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$("#whiteboardColorpicker").css({ "background": "blue" });
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},
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setDrawColorYellow: function () {
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whiteboard.setDrawColor("yellow");
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whiteboard.redrawMouseCursor();
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$("#whiteboardColorpicker").css({ "background": "yellow" });
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},
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toggleLineRecCircle: function () {
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var activeTool = $(".whiteboardTool.active").attr("tool");
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if (activeTool == "line") {
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$(".whiteboardTool[tool=rect]").click();
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} else if (activeTool == "rect") {
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$(".whiteboardTool[tool=circle]").click();
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} else {
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$(".whiteboardTool[tool=line]").click();
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}
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},
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togglePenEraser: function () {
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var activeTool = $(".whiteboardTool.active").attr("tool");
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if (activeTool == "pen") {
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$(".whiteboardTool[tool=eraser]").click();
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} else {
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$(".whiteboardTool[tool=pen]").click();
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}
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},
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toggleMainColors: function () {
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var bgColor = $("#whiteboardColorpicker")[0].style.backgroundColor;
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if (bgColor == "blue") {
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shortcutFunctions.setDrawColorGreen();
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} else if (bgColor == "green") {
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shortcutFunctions.setDrawColorYellow();
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} else if (bgColor == "yellow") {
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shortcutFunctions.setDrawColorRed();
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} else if (bgColor == "red") {
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shortcutFunctions.setDrawColorBlack();
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} else {
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shortcutFunctions.setDrawColorBlue();
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}
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},
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moveDraggableUp: function () {
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var elm = whiteboard.tool == "text" ? $("#"+whiteboard.latestActiveTextBoxId) : $(".dragMe")[0];
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var p = $(elm).position();
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$(elm).css({ top: p.top - 5, left: p.left })
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},
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moveDraggableDown: function () {
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var elm = whiteboard.tool == "text" ? $("#"+whiteboard.latestActiveTextBoxId) : $(".dragMe")[0];
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var p = $(elm).position();
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$(elm).css({ top: p.top + 5, left: p.left })
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},
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moveDraggableLeft: function () {
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var elm = whiteboard.tool == "text" ? $("#"+whiteboard.latestActiveTextBoxId) : $(".dragMe")[0];
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var p = $(elm).position();
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$(elm).css({ top: p.top, left: p.left - 5 })
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},
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moveDraggableRight: function () {
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var elm = whiteboard.tool == "text" ? $("#"+whiteboard.latestActiveTextBoxId) : $(".dragMe")[0];
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var p = $(elm).position();
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$(elm).css({ top: p.top, left: p.left + 5 })
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},
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dropDraggable: function () {
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$($(".dragMe")[0]).find('.addToCanvasBtn').click();
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},
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addToBackground: function () {
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$($(".dragMe")[0]).find('.addToBackgroundBtn').click();
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},
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cancelAllActions: function () { whiteboard.escKeyAction(); },
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deleteSelection: function () { whiteboard.delKeyAction(); },
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}
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//Load keybindings from keybinds.js to given functions
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for (var i in keybinds) {
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if (shortcutFunctions[keybinds[i]]) {
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keymage(i, shortcutFunctions[keybinds[i]], { preventDefault: true });
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} else {
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console.error("function you want to keybind on key:", i, "named:", keybinds[i], "is not available!")
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}
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}
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// whiteboard clear button
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$("#whiteboardTrashBtn").click(function () {
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$("#whiteboardTrashBtnConfirm").show().focus();
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$(this).css({ visibility: "hidden" });
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});
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$("#whiteboardTrashBtnConfirm").mouseout(function () {
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$(this).hide();
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$("#whiteboardTrashBtn").css({ visibility: "inherit" });
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});
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$("#whiteboardTrashBtnConfirm").click(function () {
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$(this).hide();
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$("#whiteboardTrashBtn").css({ visibility: "inherit" });
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whiteboard.clearWhiteboard();
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});
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// undo button
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$("#whiteboardUndoBtn").click(function () {
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whiteboard.undoWhiteboardClick();
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});
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// switch tool
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$(".whiteboardTool").click(function () {
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$(".whiteboardTool").removeClass("active");
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$(this).addClass("active");
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var activeTool = $(this).attr("tool");
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whiteboard.setTool(activeTool);
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if (activeTool == "mouse" || activeTool == "recSelect") {
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$(".activeToolIcon").empty();
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} else {
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$(".activeToolIcon").html($(this).html()); //Set Active icon the same as the button icon
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}
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});
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// upload image button
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$("#addImgToCanvasBtn").click(function () {
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showBasicAlert("Please drag the image into the browser.");
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});
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// save image as png
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$("#saveAsImageBtn").click(function () {
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var imgData = whiteboard.getImageDataBase64();
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var w = window.open('about:blank'); //Firefox will not allow downloads without extra window
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setTimeout(function () { //FireFox seems to require a setTimeout for this to work.
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var a = document.createElement('a');
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a.href = imgData;
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a.download = 'whiteboard.png';
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w.document.body.appendChild(a);
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a.click();
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w.document.body.removeChild(a);
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setTimeout(function () { w.close(); }, 100);
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}, 0);
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});
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// save image to json containing steps
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$("#saveAsJSONBtn").click(function () {
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var imgData = whiteboard.getImageDataJson();
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var w = window.open('about:blank'); //Firefox will not allow downloads without extra window
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setTimeout(function () { //FireFox seems to require a setTimeout for this to work.
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var a = document.createElement('a');
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a.href = window.URL.createObjectURL(new Blob([imgData], { type: 'text/json' }));
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a.download = 'whiteboard.json';
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w.document.body.appendChild(a);
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a.click();
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w.document.body.removeChild(a);
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setTimeout(function () { w.close(); }, 100);
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}, 0);
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});
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$("#uploadWebDavBtn").click(function () {
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if ($(".webdavUploadBtn").length > 0) {
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return;
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}
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var webdavserver = localStorage.getItem('webdavserver') || ""
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var webdavpath = localStorage.getItem('webdavpath') || "/"
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var webdavusername = localStorage.getItem('webdavusername') || ""
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var webdavpassword = localStorage.getItem('webdavpassword') || ""
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var webDavHtml = $('<div>' +
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'<table>' +
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'<tr>' +
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'<td>Server URL:</td>' +
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'<td><input class="webdavserver" type="text" value="' + webdavserver + '" placeholder="https://yourserver.com/remote.php/webdav/"></td>' +
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'<td></td>' +
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'</tr>' +
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'<tr>' +
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'<td>Path:</td>' +
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'<td><input class="webdavpath" type="text" placeholder="folder" value="' + webdavpath + '"></td>' +
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'<td style="font-size: 0.7em;"><i>path always have to start & end with "/"</i></td>' +
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'</tr>' +
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'<tr>' +
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'<td>Username:</td>' +
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'<td><input class="webdavusername" type="text" value="' + webdavusername + '" placeholder="username"></td>' +
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'<td style="font-size: 0.7em;"></td>' +
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'</tr>' +
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'<tr>' +
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'<td>Password:</td>' +
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'<td><input class="webdavpassword" type="password" value="' + webdavpassword + '" placeholder="password"></td>' +
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'<td style="font-size: 0.7em;"></td>' +
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'</tr>' +
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'<tr>' +
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'<td style="font-size: 0.7em;" colspan="3">Note: You have to generate and use app credentials if you have 2 Factor Auth activated on your dav/nextcloud server!</td>' +
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'</tr>' +
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'<tr>' +
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'<td></td>' +
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'<td colspan="2"><span class="loadingWebdavText" style="display:none;">Saving to webdav, please wait...</span><button class="modalBtn webdavUploadBtn"><i class="fas fa-upload"></i> Start Upload</button></td>' +
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'</tr>' +
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'</table>' +
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'</div>');
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webDavHtml.find(".webdavUploadBtn").click(function () {
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var webdavserver = webDavHtml.find(".webdavserver").val();
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localStorage.setItem('webdavserver', webdavserver);
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var webdavpath = webDavHtml.find(".webdavpath").val();
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localStorage.setItem('webdavpath', webdavpath);
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var webdavusername = webDavHtml.find(".webdavusername").val();
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localStorage.setItem('webdavusername', webdavusername);
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var webdavpassword = webDavHtml.find(".webdavpassword").val();
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localStorage.setItem('webdavpassword', webdavpassword);
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var base64data = whiteboard.getImageDataBase64();
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var webdavaccess = {
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webdavserver: webdavserver,
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webdavpath: webdavpath,
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webdavusername: webdavusername,
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webdavpassword: webdavpassword
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}
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webDavHtml.find(".loadingWebdavText").show();
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webDavHtml.find(".webdavUploadBtn").hide();
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saveWhiteboardToWebdav(base64data, webdavaccess, function (err) {
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if (err) {
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webDavHtml.find(".loadingWebdavText").hide();
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webDavHtml.find(".webdavUploadBtn").show();
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} else {
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webDavHtml.parents(".basicalert").remove();
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}
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});
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})
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showBasicAlert(webDavHtml, {
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header: "Save to Webdav",
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okBtnText: "cancel",
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headercolor: "#0082c9"
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})
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});
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// upload json containing steps
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$("#uploadJsonBtn").click(function () {
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$("#myFile").click();
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});
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$("#shareWhiteboardBtn").click(function () {
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var url = window.location.href;
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var s = url.indexOf("&username=") !== -1 ? "&username=" : "username="; //Remove username from url
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var urlSlpit = url.split(s);
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var urlStart = urlSlpit[0];
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if (urlSlpit.length > 1) {
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var endSplit = urlSlpit[1].split("&");
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endSplit = endSplit.splice(1, 1);
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urlStart += "&" + endSplit.join("&");
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}
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$("<textarea/>").appendTo("body").val(urlStart).select().each(function () {
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document.execCommand('copy');
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}).remove();
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showBasicAlert("Copied Whiteboard-URL to clipboard.", { hideAfter: 2 })
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});
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var btnsMini = false;
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$("#minMaxBtn").click(function () {
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if (!btnsMini) {
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$("#toolbar").find(".btn-group:not(.minGroup)").hide();
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$(this).find("#minBtn").hide();
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$(this).find("#maxBtn").show();
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} else {
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$("#toolbar").find(".btn-group").show();
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$(this).find("#minBtn").show();
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$(this).find("#maxBtn").hide();
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}
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btnsMini = !btnsMini;
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})
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// load json to whiteboard
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$("#myFile").on("change", function () {
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var file = document.getElementById("myFile").files[0];
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var reader = new FileReader();
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reader.onload = function (e) {
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try {
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var j = JSON.parse(e.target.result);
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whiteboard.loadJsonData(j);
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} catch (e) {
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showBasicAlert("File was not a valid JSON!");
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}
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};
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reader.readAsText(file);
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$(this).val("");
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});
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// On thickness slider change
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$("#whiteboardThicknessSlider").on("input", function () {
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whiteboard.setStrokeThickness($(this).val());
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});
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// handle drag&drop
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var dragCounter = 0;
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$('#whiteboardContainer').on("dragenter", function (e) {
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e.preventDefault();
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e.stopPropagation();
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dragCounter++;
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whiteboard.dropIndicator.show();
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});
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$('#whiteboardContainer').on("dragleave", function (e) {
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e.preventDefault();
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e.stopPropagation();
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dragCounter--;
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if (dragCounter === 0) {
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whiteboard.dropIndicator.hide();
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}
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});
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$('#whiteboardContainer').on('drop', function (e) { //Handle drop
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if (e.originalEvent.dataTransfer) {
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if (e.originalEvent.dataTransfer.files.length) { //File from harddisc
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e.preventDefault();
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e.stopPropagation();
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var filename = e.originalEvent.dataTransfer.files[0]["name"];
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if (isImageFileName(filename)) {
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var blob = e.originalEvent.dataTransfer.files[0];
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var reader = new window.FileReader();
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reader.readAsDataURL(blob);
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reader.onloadend = function () {
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base64data = reader.result;
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uploadImgAndAddToWhiteboard(base64data);
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}
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} else {
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showBasicAlert("File must be an image!");
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}
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} else { //File from other browser
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var fileUrl = e.originalEvent.dataTransfer.getData('URL');
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var imageUrl = e.originalEvent.dataTransfer.getData('text/html');
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var rex = /src="?([^"\s]+)"?\s*/;
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var url = rex.exec(imageUrl);
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if (url && url.length > 1) {
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url = url[1];
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} else {
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url = "";
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}
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isValidImageUrl(fileUrl, function (isImage) {
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if (isImage && isImageFileName(url)) {
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whiteboard.addImgToCanvasByUrl(fileUrl);
|
|
} else {
|
|
isValidImageUrl(url, function (isImage) {
|
|
if (isImage) {
|
|
if (isImageFileName(url) || url.startsWith("http")) {
|
|
whiteboard.addImgToCanvasByUrl(url);
|
|
} else {
|
|
uploadImgAndAddToWhiteboard(url); //Last option maybe its base64
|
|
}
|
|
} else {
|
|
showBasicAlert("Can only upload Imagedata!");
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
}
|
|
dragCounter = 0;
|
|
whiteboard.dropIndicator.hide();
|
|
});
|
|
|
|
$('#whiteboardColorpicker').colorPicker({
|
|
renderCallback: function (elm) {
|
|
whiteboard.setDrawColor(elm.val());
|
|
}
|
|
});
|
|
});
|
|
|
|
//Prevent site from changing tab on drag&drop
|
|
window.addEventListener("dragover", function (e) {
|
|
e = e || event;
|
|
e.preventDefault();
|
|
}, false);
|
|
window.addEventListener("drop", function (e) {
|
|
e = e || event;
|
|
e.preventDefault();
|
|
}, false);
|
|
|
|
function uploadImgAndAddToWhiteboard(base64data) {
|
|
var date = (+new Date());
|
|
$.ajax({
|
|
type: 'POST',
|
|
url: document.URL.substr(0, document.URL.lastIndexOf('/')) + '/upload',
|
|
data: {
|
|
'imagedata': base64data,
|
|
'whiteboardId': whiteboardId,
|
|
'date': date,
|
|
'at': accessToken
|
|
},
|
|
success: function (msg) {
|
|
var filename = whiteboardId + "_" + date + ".png";
|
|
whiteboard.addImgToCanvasByUrl(document.URL.substr(0, document.URL.lastIndexOf('/')) + "/uploads/" + filename); //Add image to canvas
|
|
console.log("Image uploaded!");
|
|
},
|
|
error: function (err) {
|
|
showBasicAlert("Failed to upload frame: " + JSON.stringify(err));
|
|
}
|
|
});
|
|
}
|
|
|
|
function saveWhiteboardToWebdav(base64data, webdavaccess, callback) {
|
|
var date = (+new Date());
|
|
$.ajax({
|
|
type: 'POST',
|
|
url: document.URL.substr(0, document.URL.lastIndexOf('/')) + '/upload',
|
|
data: {
|
|
'imagedata': base64data,
|
|
'whiteboardId': whiteboardId,
|
|
'date': date,
|
|
'at': accessToken,
|
|
'webdavaccess': JSON.stringify(webdavaccess)
|
|
},
|
|
success: function (msg) {
|
|
showBasicAlert("Whiteboard was saved to Webdav!", {
|
|
headercolor: "#5c9e5c"
|
|
});
|
|
console.log("Image uploaded for webdav!");
|
|
callback();
|
|
},
|
|
error: function (err) {
|
|
if (err.status == 403) {
|
|
showBasicAlert("Could not connect to Webdav folder! Please check the credentials and paths and try again!");
|
|
} else {
|
|
showBasicAlert("Unknown Webdav error! ", err);
|
|
}
|
|
callback(err);
|
|
}
|
|
});
|
|
}
|
|
|
|
// verify if filename refers to an image
|
|
function isImageFileName(filename) {
|
|
var extension = filename.split(".")[filename.split(".").length - 1];
|
|
var known_extensions = ["png", "jpg", "jpeg", "gif", "tiff", "bmp", "webp"];
|
|
return known_extensions.includes(extension.toLowerCase());
|
|
}
|
|
|
|
// verify if given url is url to an image
|
|
function isValidImageUrl(url, callback) {
|
|
var img = new Image();
|
|
var timer = null;
|
|
img.onerror = img.onabort = function () {
|
|
clearTimeout(timer);
|
|
callback(false);
|
|
};
|
|
img.onload = function () {
|
|
clearTimeout(timer);
|
|
callback(true);
|
|
};
|
|
timer = setTimeout(function () {
|
|
callback(false);
|
|
}, 2000);
|
|
img.src = url;
|
|
}
|
|
|
|
// handle pasting from clipboard
|
|
window.addEventListener("paste", function (e) {
|
|
if ($(".basicalert").length > 0) {
|
|
return;
|
|
}
|
|
if (e.clipboardData) {
|
|
var items = e.clipboardData.items;
|
|
var imgItemFound = false;
|
|
if (items) {
|
|
// Loop through all items, looking for any kind of image
|
|
for (var i = 0; i < items.length; i++) {
|
|
if (items[i].type.indexOf("image") !== -1) {
|
|
imgItemFound = true;
|
|
// We need to represent the image as a file,
|
|
var blob = items[i].getAsFile();
|
|
|
|
var reader = new window.FileReader();
|
|
reader.readAsDataURL(blob);
|
|
reader.onloadend = function () {
|
|
console.log("Uploading image!");
|
|
base64data = reader.result;
|
|
uploadImgAndAddToWhiteboard(base64data);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!imgItemFound && whiteboard.tool != "text") {
|
|
showBasicAlert("Please Drag&Drop the image into the Whiteboard. (Browsers don't allow copy+past from the filesystem directly)");
|
|
}
|
|
}
|
|
});
|
|
|
|
function showBasicAlert(html, newOptions) {
|
|
var options = {
|
|
header: "INFO MESSAGE",
|
|
okBtnText: "Ok",
|
|
headercolor: "#d25d5d",
|
|
hideAfter: false
|
|
}
|
|
if (newOptions) {
|
|
for (var i in newOptions) {
|
|
options[i] = newOptions[i];
|
|
}
|
|
}
|
|
var alertHtml = $('<div class="basicalert" style="position:absolute; top:0px; left:0px; width:100%; top:70px; font-family: monospace;">' +
|
|
'<div style="width: 30%; margin: auto; background: #aaaaaa; border-radius: 5px; font-size: 1.2em; border: 1px solid gray;">' +
|
|
'<div style="border-bottom: 1px solid #676767; background: ' + options["headercolor"] + '; padding-left: 5px; font-size: 0.8em;">' + options["header"] + '</div>' +
|
|
'<div style="padding: 10px;" class="htmlcontent"></div>' +
|
|
'<div style="height: 20px; padding: 10px;"><button class="modalBtn okbtn" style="float: right;">' + options["okBtnText"] + '</button></div>' +
|
|
'</div>' +
|
|
'</div>');
|
|
alertHtml.find(".htmlcontent").append(html);
|
|
$("body").append(alertHtml);
|
|
alertHtml.find(".okbtn").click(function () {
|
|
alertHtml.remove();
|
|
})
|
|
if (options.hideAfter) {
|
|
setTimeout(function () {
|
|
alertHtml.find(".okbtn").click();
|
|
}, 1000 * options.hideAfter)
|
|
}
|
|
}
|
|
|
|
// get 'GET' parameter by variable name
|
|
function getQueryVariable(variable) {
|
|
var query = window.location.search.substring(1);
|
|
var vars = query.split("&");
|
|
for (var i = 0; i < vars.length; i++) {
|
|
var pair = vars[i].split("=");
|
|
if (pair[0] == variable) {
|
|
return pair[1];
|
|
}
|
|
}
|
|
return false;
|
|
} |