WebDev/VersaWhiteboard
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add function to move textbox

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raphael 2019-02-05 13:04:26 +01:00
parent 15b2aeaf9b
commit 5c60f68c14
4 changed files with 50 additions and 33 deletions
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1
README.md
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@ -43,7 +43,6 @@ Call your site with GET parameters to change the WhiteboardID or the Username
* You shoud be able to customize without ever toutching the whiteboard.js (take a look at index.html & main.js)
## ToDo
* Enable drag and drop for texts
* Show indicator on slider which tool is active (Pen, Text...)
* Make undo function more reliable on texts
* Add more callbacks for errors and things ...

5
public/css/main.css
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@ -54,9 +54,10 @@ button {
.textBox.active {
border: 1px dashed gray;
}
.textBox>.removeIcon {
.textBox>.removeIcon,.textBox>.moveIcon {
display:none;
}
.textBox.active>.removeIcon {
.textBox.active>.removeIcon,.textBox.active>.moveIcon {
display:block;
}

73
public/js/whiteboard.js
View File

@ -46,11 +46,11 @@ var whiteboard = {
_this.backgroundGrid = $('<div style="position: absolute; left:0px; top:0; opacity: 0.2; background-image:url(\'' + _this.settings["backgroundGridUrl"] + '\'); height: 100%; width: 100%;"></div>');
// container for background images
_this.imgContainer = $('<div style="position: absolute; left:0px; top:0; height: 100%; width: 100%;"></div>');
// whiteboard canvas
// whiteboard canvas
_this.canvasElement = $('<canvas id="whiteboardCanvas" style="position: absolute; left:0px; top:0; cursor:crosshair;"></canvas>');
// SVG container holding drawing or moving previews
_this.svgContainer = $('<svg style="position: absolute; top:0px; left:0px;" width="' + _this.settings.canvasWidth + '" height="' + _this.settings.canvasHeight + '"></svg>');
// drag and drop indicator, hidden by default
// drag and drop indicator, hidden by default
_this.dropIndicator = $('<div style="position:absolute; height: 100%; width: 100%; border: 7px dashed gray; text-align: center; top: 0px; left: 0px; color: gray; font-size: 23em; display: none;"><i class="far fa-plus-square" aria-hidden="true"></i></div>')
// container for other users cursors
_this.cursorContainer = $('<div style="position: absolute; left:0px; top:0; height: 100%; width: 100%;"></div>');
@ -60,13 +60,13 @@ var whiteboard = {
_this.mouseOverlay = $('<div style="cursor:none; position: absolute; left:0px; top:0; height: 100%; width: 100%;"></div>');
$(whiteboardContainer).append(_this.backgroundGrid)
.append(_this.imgContainer)
.append(_this.canvasElement)
.append(_this.svgContainer)
.append(_this.dropIndicator)
.append(_this.cursorContainer)
.append(_this.textContainer)
.append(_this.mouseOverlay);
.append(_this.imgContainer)
.append(_this.canvasElement)
.append(_this.svgContainer)
.append(_this.dropIndicator)
.append(_this.cursorContainer)
.append(_this.textContainer)
.append(_this.mouseOverlay);
this.canvas = $("#whiteboardCanvas")[0];
this.canvas.height = _this.settings.canvasHeight;
this.canvas.width = _this.settings.canvasWidth;
@ -340,7 +340,7 @@ var whiteboard = {
currX = (e.offsetX || e.pageX - $(e.target).offset().left);
currY = (e.offsetY || e.pageY - $(e.target).offset().top);
var fontsize = _this.thickness * 0.5;
var txId = 'tx'+(+new Date());
var txId = 'tx' + (+new Date());
_this.sendFunction({ "t": "addTextBox", "d": [_this.drawcolor, fontsize, currX, currY, txId] });
_this.addTextBox(_this.drawcolor, fontsize, currX, currY, txId, true);
});
@ -483,7 +483,7 @@ var whiteboard = {
addImgToCanvasByUrl: function (url) {
var _this = this;
var wasTextTool = false;
if(_this.tool==="text") {
if (_this.tool === "text") {
wasTextTool = true;
_this.setTool("mouse"); //Set to mouse tool while dropping to prevent errors
}
@ -502,7 +502,7 @@ var whiteboard = {
_this.imgDragActive = false;
_this.refreshCursorAppearance();
imgDiv.remove();
if(wasTextTool) {
if (wasTextTool) {
_this.setTool("text");
}
});
@ -523,7 +523,7 @@ var whiteboard = {
_this.sendFunction({ "t": "addImgBG", "draw": draw, "url": url, "d": [width, height, left, top] });
_this.drawId++;
imgDiv.remove();
if(wasTextTool) {
if (wasTextTool) {
_this.setTool("text");
}
});
@ -536,37 +536,52 @@ var whiteboard = {
},
addTextBox(textcolor, fontsize, left, top, txId, newLocalBox) {
var _this = this;
var textBox = $('<div id="'+txId+'" class="textBox" style="font-family: monospace; position:absolute; top:' + top + 'px; left:' + left + 'px;">'+
'<div contentEditable="true" spellcheck="false" class="textContent" style="outline: none; font-size:'+fontsize+'em; color:'+textcolor+'; min-width:50px; min-height:50px;"></div>'+
'<div title="remove textbox" class="removeIcon" style="position:absolute; cursor:pointer; top:-4px; right:2px;">x</div>'+
'</div>')
textBox.click(function(e) {
var textBox = $('<div id="' + txId + '" class="textBox" style="font-family: monospace; position:absolute; top:' + top + 'px; left:' + left + 'px;">' +
'<div contentEditable="true" spellcheck="false" class="textContent" style="outline: none; font-size:' + fontsize + 'em; color:' + textcolor + '; min-width:50px; min-height:50px;"></div>' +
'<div title="remove textbox" class="removeIcon" style="position:absolute; cursor:pointer; top:-4px; right:2px;">x</div>' +
'<div title="move textbox" class="moveIcon" style="position:absolute; cursor:move; top:1px; left:2px; font-size: 0.5em;"><i class="fas fa-expand-arrows-alt"></i></div>' +
'</div>');
textBox.click(function (e) {
e.preventDefault();
return false;
})
this.textContainer.append(textBox);
textBox.find(".textContent").on("input", function() {
textBox.draggable({
handle: ".moveIcon",
stop: function () {
var textBoxPosition = textBox.position();
_this.sendFunction({ "t": "setTextboxPosition", "d": [txId, textBoxPosition.top, textBoxPosition.left] });
},
drag: function() {
var textBoxPosition = textBox.position();
_this.sendFunction({ "t": "setTextboxPosition", "d": [txId, textBoxPosition.top, textBoxPosition.left] });
}
});
textBox.find(".textContent").on("input", function () {
var text = btoa($(this).html()); //Get html and make encode base64
_this.sendFunction({ "t": "setTextboxText", "d": [txId, text] });
});
textBox.find(".removeIcon").click(function(e) {
$("#"+txId).remove();
textBox.find(".removeIcon").click(function (e) {
$("#" + txId).remove();
_this.sendFunction({ "t": "removeTextbox", "d": [txId] });
e.preventDefault();
return false;
});
if(newLocalBox) {
if (newLocalBox) {
textBox.find(".textContent").focus();
}
if(this.tool==="text") {
if (this.tool === "text") {
textBox.addClass("active");
}
},
setTextboxText(txId, text) {
$("#"+txId).find(".textContent").html(atob(text)); //Set decoded base64 as html
$("#" + txId).find(".textContent").html(atob(text)); //Set decoded base64 as html
},
removeTextbox(txId) {
$("#"+txId).remove();
$("#" + txId).remove();
},
setTextboxPosition(txId, top, left) {
$("#" + txId).css({"top" : top+"px", "left" : left+"px"});
},
drawImgToCanvas(url, width, height, left, top, doneCallback) {
var _this = this;
@ -607,7 +622,7 @@ var whiteboard = {
},
setTool: function (tool) {
this.tool = tool;
if(this.tool==="text") {
if (this.tool === "text") {
$(".textBox").addClass("active");
this.textContainer.appendTo($(whiteboardContainer)); //Bring textContainer to the front
} else {
@ -649,6 +664,8 @@ var whiteboard = {
_this.setTextboxText(data[0], data[1]);
} else if (tool === "removeTextbox") {
_this.removeTextbox(data[0]);
} else if(tool === "setTextboxPosition") {
_this.setTextboxPosition(data[0], data[1], data[2]);
} else if (tool === "clear") {
_this.canvas.height = _this.canvas.height;
_this.imgContainer.empty();
@ -672,7 +689,7 @@ var whiteboard = {
}
});
if (isNewData && ["line", "pen", "rect", "circle", "eraser", "addImgBG", "recSelect", "eraseRec", "addTextBox", "setTextboxText", "removeTextbox"].includes(tool)) {
if (isNewData && ["line", "pen", "rect", "circle", "eraser", "addImgBG", "recSelect", "eraseRec", "addTextBox", "setTextboxText", "removeTextbox", "setTextboxPosition"].includes(tool)) {
content["drawId"] = content["drawId"] ? content["drawId"] : _this.drawId;
content["username"] = content["username"] ? content["username"] : _this.settings.username;
_this.drawBuffer.push(content);
@ -762,7 +779,7 @@ var whiteboard = {
if (_this.settings.sendFunction) {
_this.settings.sendFunction(content);
}
if (["line", "pen", "rect", "circle", "eraser", "addImgBG", "recSelect", "eraseRec", "addTextBox", "setTextboxText", "removeTextbox"].includes(tool)) {
if (["line", "pen", "rect", "circle", "eraser", "addImgBG", "recSelect", "eraseRec", "addTextBox", "setTextboxText", "removeTextbox", "setTextboxPosition"].includes(tool)) {
_this.drawBuffer.push(content);
}
},

2
s_whiteboard.js
View File

@ -22,7 +22,7 @@ module.exports = {
}
}
}
} else if(["line", "pen", "rect", "circle", "eraser", "addImgBG", "recSelect", "eraseRec", "addTextBox", "setTextboxText", "removeTextbox"].includes(tool)) { //Save all this actions
} else if(["line", "pen", "rect", "circle", "eraser", "addImgBG", "recSelect", "eraseRec", "addTextBox", "setTextboxText", "removeTextbox", "setTextboxPosition"].includes(tool)) { //Save all this actions
if(!savedBoards[wid]) {
savedBoards[wid] = [];
}