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gradiantor.js
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gradiantor.js
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'use strict';
/**
* Vanilla JS Advanced Gradient Builder
* Part Of Genereight App Generator Frontend Collection
* @version: 1
* @author: [email protected]
*/
class Gn8Gradiantor {
constructor ( data ) {
this.toolbox;
this.promise;
this.isRepeating = false;
this.isLinear = true;
this.isRadial = false;
this.colors = [];
this.angle = 90;
this.shape = "ellipse";
this.center = {
"x" : 50,
"y" : 50
};
this.size = "farthest-corner"; /** farthest-corner, contain : closest-side */
//radial-gradient(circle closest-side at 60% 55%, red, yellow, black)
//repeating-radial-gradient(circle closest-side at 60% 55%, red, yellow, black)
//linear-gradient(angle, color-stop1, color-stop2)
//repeating-linear-gradient(angle, color-stop1, color-stop2)
this.promiseResolve;
this.promiseReject;
this.timer;
this.lastPosition = {
"x" : 0,
"y" : 0
};
this.string = "";
this.rotateRect = {};
this.rotateEnvironment = 0;
if ( typeof data != "object" ) {
try {
this.data = JSON.parse( data );
} catch (error) {
console.log( "not valid data - gn8Colorize" );
}
} else {
this.data = data;
}
try {
this.id = this.data.id + "-gradiantor" || this.idFunction() + "-gradiantor";
this.container = this.data.container;
this.value = this.data.value || "linear-gradient(30deg, rgb(55, 192, 176) 0%, rgb(245, 155, 146) 100%)";
if ( this.value == "none" ) this.value = "linear-gradient(90deg, rgb(55, 192, 176) 0%, rgb(245, 155, 146) 100%)";
if ( this.value ) {
this.analyseValue();
this.string = this.value;
}
} catch (error) {
console.log( "can not create - Gn8Gradiantor" );
}
}
init () {
var checked = "";
if ( this.isRepeating ) checked = "checked";
this.toolbox = document.createElement( "div" );
this.toolbox.id = this.id;
this.toolbox.classList.add( "gn8-gradiantor-toolbox" );
this.toolbox.innerHTML = `
<div class="gn8-gradiantor-wrap" ></div>
<div class="gn8-gradiantor-tool-wrap" >
<ul class="gn8-gradiantor-tool-list" >
<li data-tooltype="linear" class="gn8-gradiantor-tool linear" style="background-image: linear-gradient(90deg, black, white); background-clip: content-box;" >
</li>
<li data-tooltype="radial" class="gn8-gradiantor-tool radial" style="background-image: radial-gradient(black, white); background-clip: content-box;" >
</li>
<li style="display: flex; flex-direction: row; align-items: center; margin-left: 10px;" >
<input type="checkbox" id="${this.id}-is-repeating" ${checked} >
<label for="${this.id}-is-repeating" style="font-size:.8em;">Repeating Gradient</label>
</li>
</ul>
<div class="gn8-gradiantor-tool-container" ></div>
</div>
`;
this.container.appendChild( this.toolbox );
this.toolContainer = this.toolbox.querySelector( ".gn8-gradiantor-tool-container" );
this.toolContainer.addEventListener( "click", function (e) {
if ( e.target == e.currentTarget ) {
if ( document.getElementById( this.id + "-lab" ) && e.target === e.currentTarget ) {
document.getElementById( this.id + "-lab" ).remove();
}
this.toolbox.querySelectorAll( ".gn8-gradiantor-picker-cursor" ).forEach( element => {
element.classList.remove( "active" );
} );
}
}.bind( this ) );
this.toolbox.addEventListener( "click", function (e) {
e.stopPropagation();
} );
this.toolbox.querySelector( ".gn8-gradiantor-wrap" ).addEventListener( "click", function (e) {
this.toolbox.remove();
this.promiseResolve( this.string );
}.bind( this ) );
this.promise = new Promise( ( resolve, reject ) => {
this.promiseResolve = resolve;
this.promiseReject = reject;
var tools = this.toolbox.querySelectorAll( "li.gn8-gradiantor-tool" );
for ( let index = 0; index < tools.length; index++ ) {
tools[index].addEventListener( "click", function (e) {
if ( document.getElementById( this.id + "-lab" ) && e.target === e.currentTarget ) document.getElementById( this.id + "-lab" ).remove();
this.toolbox.querySelectorAll( ".gn8-gradiantor-picker-cursor" ).forEach( element => {
element.classList.remove( "active" );
} );
}.bind( this ) );
tools[index].addEventListener( "click", function (e) {
for ( let index = 0; index < tools.length; index++ ) {
tools[index].classList.remove( "active" );
}
e.currentTarget.classList.add( "active" );
this[ e.currentTarget.getAttribute( "data-tooltype" ) ]();
}.bind( this ) );
}
document.getElementById( `${this.id}-is-repeating` ).addEventListener( "change", function (e) {
this.isRepeating = e.currentTarget.checked;
if ( this.isLinear ) this.linear();
if ( this.isRadial ) this.radial();
}.bind( this ) );
if ( this.isLinear ) {
this.toolbox.querySelector( "li.gn8-gradiantor-tool.linear" ).classList.add( "active" );
this.linear();
}else{
this.toolbox.querySelector( "li.gn8-gradiantor-tool.radial" ).classList.add( "active" );
this.radial();
}
} );
return this.promise;
}
analyseValue () {
var type = "";
var desc = "";
var colors = [];
var types = ["linear-gradient","radial-gradient","repeating-linear-gradient","repeating-radial-gradient"];
types.forEach( t => {
if ( this.value.search( t ) > -1 ) type = t;
} );
if ( !type ) return;
this.value = this.value.replace( type, '' );
var reg = /rgba?(\(\s*\d+\s*,\s*\d+\s*,\s*\d+)(?:\s*,.+?)?\)/g;
do {
var color = reg.exec( this.value );
if ( color ) {
colors.push( color[0] );
}
} while ( color );
if ( colors && colors.length > 0 ) {
for (let index = 0; index < colors.length; index++) {
this.value = this.value.replace( colors[index], `cooloor-${index}` );
}
this.value = this.value.replace( "(", '' ).replace( ")", '' );
var parts = this.value.split( "," );
if ( parts[0].search( "cooloor-" ) < 0 ) desc = parts[0];
for (let index = 0; index < parts.length; index++) {
var part = parts[ index ];
for (let index = 0; index < colors.length; index++) {
const color = colors[index];
if ( part.search( "cooloor-"+index ) > -1 ) {
var pers = part.replace( "cooloor-"+index, '' ).replace(/ /g,'');
var clrid = this.idFunction();
var theColor = [ color, "", clrid ];
if ( !isNaN( parseInt( pers ) ) ) theColor[1] = parseInt( pers );
this.colors.push( theColor );
continue;
}
}
}
switch ( type ) {
case 'linear-gradient':
this.isLinear = true;
this.isRadial = false;
this.isRepeating = false;
if ( desc ) this.angle = parseInt( desc ) || 90;
break;
case 'repeating-linear-gradient':
this.isLinear = true;
this.isRadial = false;
this.isRepeating = true;
if ( desc ) this.angle = parseInt( desc ) || 90;
break;
case 'radial-gradient':
this.isLinear = false;
this.isRadial = true;
this.isRepeating = false;
break;
case 'repeating-radial-gradient':
this.isLinear = false;
this.isRadial = true;
this.isRepeating = true;
break;
default:
break;
}
if ( ["radial-gradient","repeating-radial-gradient"].indexOf( type ) > -1 ) {
if ( desc.search( "circle" ) > -1 ) {
this.shape = "circle";
desc = desc.replace( "circle", "" );
}
if ( desc.search( "closest-side" ) > -1 ) {
this.size = "closest-side";
desc = desc.replace( "closest-side", "" );
}else{
desc = desc.replace( "farthest-corner", "" );
}
["farthest-corner","farthest-side","closest-corner","closest-side"].forEach( element => {
desc = desc.replace( element, "" );
} );
desc = desc.replace( "at", "" ).trim();
var center = desc.split( " " );
if ( center[0] && parseInt( center[0] ) > -1 ) this.center.x = parseInt( center[0] );
if ( center[1] && parseInt( center[1] ) > -1 ) this.center.y = parseInt( center[1] );
}
}
}
linear () {
var fitGradient = function ( deg ) {
var x = 1.6;
var divDeg = ( deg % 90 ) * (Math.PI / 180)
var width = this.toolContainer.offsetWidth;
var height = this.toolContainer.offsetHeight;
var minLength = width / x;
var theWidth = Math.ceil( minLength * Math.cos( Math.abs( divDeg ) ) + minLength * Math.sin( Math.abs( divDeg ) ) );
var gradient = this.toolContainer.querySelector( ".gn8-gradiantor-gradient-container" );
gradient.style.width = "12px";
gradient.style.height = theWidth + "px";
gradient.style.left = ( width - 6 ) / 2 + "px";
gradient.style.top = ( height - theWidth ) / 2 + "px";
gradient.style.webkitTransform = 'rotate('+deg+'deg)';
gradient.style.mozTransform = 'rotate('+deg+'deg)';
gradient.style.msTransform = 'rotate('+deg+'deg)';
gradient.style.oTransform = 'rotate('+deg+'deg)';
gradient.style.transform = 'rotate('+deg+'deg)';
var rotate = this.toolContainer.querySelector( ".gn8-gradiantor-rotate" );
rotate.style.webkitTransform = 'rotate('+deg+'deg)';
rotate.style.mozTransform = 'rotate('+deg+'deg)';
rotate.style.msTransform = 'rotate('+deg+'deg)';
rotate.style.oTransform = 'rotate('+deg+'deg)';
rotate.style.transform = 'rotate('+deg+'deg)';
}.bind( this );
var drawGradient = function ( colors ) {
colors = sortColors( colors );
var frame = this.toolContainer.querySelector( ".gn8-gradiantor-frame" );
var gradient = this.toolContainer.querySelector( ".gn8-gradiantor-gradient-container" );
var stepsContainer = gradient.querySelector( ".gn8-gradiantor-gradient-steps" );
stepsContainer.innerHTML = `<canvas id="${this.id}-gradient-canvas" width="10" height="${stepsContainer.offsetHeight}"></canvas>`;
var canvas = document.getElementById( `${this.id}-gradient-canvas` );
var ctx = canvas.getContext("2d");
var grd = ctx.createLinearGradient(0, stepsContainer.offsetHeight, 0, 0);
// Fill with gradient
var colorsArray = [];
for (let index = 0; index < colors.length; index++) {
const color = colors[index];
colorsArray.push( `${color[0]} ${color[1]}%` );
grd.addColorStop( color[1] / 100, color[0] );
addColor( index, color[0], color[1], color[2] );
}
ctx.fillStyle = grd;
ctx.fillRect(0, 0, 10, stepsContainer.offsetHeight);
if ( this.isRepeating ) {
var realBackgroundImage = `repeating-linear-gradient(${this.angle}deg,${colorsArray.join(",")})`;
}else{
var realBackgroundImage = `linear-gradient(${this.angle}deg,${colorsArray.join(",")})`;
}
frame.style.backgroundImage = realBackgroundImage;
canvas.addEventListener( "click", function (e) {
var c = e.currentTarget || e.target;
var ctx = c.getContext("2d");
var imgData = ctx.getImageData( e.offsetX, e.offsetY, 1, 1 );
var color = `rgba(${imgData.data[0]},${imgData.data[1]},${imgData.data[2]},${imgData.data[3]})`;
var percent = ( ( c.height - e.offsetY ) / c.height ) * 100;
var id = this.idFunction();
this.colors.push( [ color, percent, id ] );
drawGradient( this.colors );
}.bind( this ) );
collectString();
}.bind( this );
var collectString = function () {
var colors = [];
this.colors.forEach( color => {
var percent = "";
if ( color[1] || color[1] === 0 ) percent = color[1] + "%";
colors.push( `${color[0]} ${percent}` );
} );
colors = colors.join();
if ( !this.isRepeating ) {
this.string = `linear-gradient(${this.angle}deg,${colors})`;
}else{
this.string = `repeating-linear-gradient(${this.angle}deg,${colors})`;
}
console.log(this.string);
}.bind( this );
var addColor = function ( index, color, percent, id ) {
var steps = this.toolContainer.querySelector( ".gn8-gradiantor-gradient-steps" );
var maxHeight = steps.offsetHeight;
var mark = document.createElement( "div" );
mark.classList.add( "gn8-gradiantor-picker-cursor" );
mark.innerHTML = `<span style="display: inline; background-color: ${color};" ></span>`;
mark.setAttribute( "data-color-index", index );
mark.setAttribute( "data-color-percn", percent );
mark.setAttribute( "data-color-id", id );
steps.appendChild( mark );
var bottom = percent - ( ( mark.offsetHeight / 2 ) / maxHeight ) * 100;
if ( ( ( percent / 100 ) * maxHeight + mark.offsetHeight ) > maxHeight ) {
bottom = ( ( maxHeight - mark.offsetHeight ) / maxHeight ) * 100;
}
if ( ( ( percent / 100 ) * maxHeight - mark.offsetHeight ) < 0 ) {
bottom = 0;
}
mark.style.bottom = bottom + "%";
mark.addEventListener( "click", function ( e ) {
manageColor( e );
} );
}.bind( this );
var manageColor = function (e) {
var markr = e.currentTarget;
var color = window.getComputedStyle( markr.querySelector( "span" ), null ).getPropertyValue("background-color");
var percn = parseInt( markr.getAttribute( "data-color-percn" ) );
var clrid = markr.getAttribute( "data-color-id" );
var index = markr.getAttribute( "data-color-index" );
var dlt = `<div id="${this.id}-delete" style="margin: 5%; font-size: 2em; color: red; cursor: pointer;">×</div>`;
if ( parseInt( index ) == 0 || index == this.colors.length - 1 ) {
dlt = `<div id="${this.id}-delete" style="margin: 5%; font-size: 2em; color: rgba(0,0,0,.2); cursor: not-allowed;">×</div>`;
}
this.toolbox.querySelectorAll( ".gn8-gradiantor-picker-cursor" ).forEach( element => {
element.classList.remove( "active" );
} );
markr.classList.add( "active" );
if ( !document.getElementById( this.id + "-lab" ) ) {
var lab = document.createElement( "div" );
lab.id = this.id + "-lab";
lab.style.zIndex = "100";
lab.style.border = "1px solid rgb(221,221,221)";
lab.style.borderRadius = "5px";
this.toolbox.querySelector( ".gn8-gradiantor-tool-wrap" ).appendChild( lab );
}
var lab = document.getElementById( this.id + "-lab" );
lab.innerHTML = `
<div style="display: flex; flex-direction: row; flex: 1; justify-content: center;">
<div id="${this.id}-color" style="background-color: ${color}; border: 1px solid rgb(200,200,200); border-radius: 5px; width: 40%; margin: 5%;"></div>
<div style="margin: 5%; width: 40%; display:flex; flex-direction:row; align-items: center;">
<input value="${percn}" name="percent" id="${this.id}-percent" type="number" min="0" max="100" step="5" style="padding: 5px; border-radius: 5px; border: 1px solid rgb(200,200,200);" >
<span style="padding: 3px;" >%</span>
</div>
${dlt}
</div>
`;
lab.querySelector( `#${this.id}-percent` ).addEventListener( "change", function (e) {
let color = window.getComputedStyle( lab.querySelector( `#${this.id}-color` ), null ).getPropertyValue("background-color");
lab.querySelector( `#${this.id}-color` ).style.backgroundColor = color;
markr.querySelector( "span" ).style.backgroundColor = color;
for (let index = 0; index < this.colors.length; index++) {
const c = this.colors[index];
if ( c[2] == clrid ) {
var cIndex = index;
break;
}
}
updateColor( {
"id" : clrid,
"index" : cIndex,
"color" : color,
"percnt": parseInt( e.currentTarget.value )
} );
}.bind( this ) );
lab.querySelector( `#${this.id}-color` ).addEventListener( "click", function (e) {
var data = {
"id" : null,
"container" : this.toolbox,
"value" : window.getComputedStyle( e.currentTarget, null ).getPropertyValue("background-color")
}
var colorizer = new Gn8Colorize( data );
colorizer.init().then( success => {
let color = success.rgb;
lab.querySelector( `#${this.id}-color` ).style.backgroundColor = color;
markr.querySelector( "span" ).style.backgroundColor = color;
for (let index = 0; index < this.colors.length; index++) {
const c = this.colors[index];
if ( c[2] == clrid ) {
var cIndex = index;
break;
}
}
updateColor( {
"id" : clrid,
"index" : cIndex,
"color" : color,
"percnt": parseInt( lab.querySelector( `#${this.id}-percent` ).value )
} );
},error => {} );
}.bind( this ) );
lab.querySelector( `#${this.id}-delete` ).addEventListener( "click", function (e) {
for (let index = 0; index < this.colors.length; index++) {
const c = this.colors[index];
if ( c[2] == clrid ) {
var cIndex = index;
break;
}
}
if ( this.colors.length > 2 ) {
this.colors.splice(cIndex, 1);
drawGradient( this.colors );
lab.remove();
}
}.bind( this ) );
}.bind( this );
var updateColor = function ( data ) {
if ( typeof data.index != typeof undefined ) {
this.colors[ data.index ] = [
data.color, data.percnt, data.id
]
}else{
}
var colors = sortColors( this.colors );
drawGradient( colors );
}.bind( this );
var sortColors = function ( colors ) {
colors.sort( function( a, b ) {
return a[1] - b[1];
} );
return colors;
}
var rotateGradient = function () {
var rotate = this.toolContainer.querySelector( ".gn8-gradiantor-rotate" );
rotate.addEventListener( "mousedown", function (e) {
if ( e.currentTarget != e.target ) return;
e.stopPropagation();
this.lastPosition.x = e.pageX;
this.lastPosition.y = e.pageY;
e.currentTarget.classList.add( "gn8-gradiantor-rotating" );
}.bind( this ) );
rotate.addEventListener( "mousemove", function (e) {
if ( !e.currentTarget.classList.contains( "gn8-gradiantor-rotating" ) ) return;
e.stopImmediatePropagation();
if ( !this.timer || this.timer < Date.now() - 10 ) {
var isRight = false;
if ( e.pageX >= this.rotateRect[ "left" ] + this.rotateRect[ "width" ] / 2 ) {
isRight = true;
}
var isBottom = false;
if ( e.pageY >= this.rotateRect[ "top" ] + this.rotateRect[ "height" ] / 2 ) {
isBottom = true;
}
var toRight = false;
var toBottom = false;
if ( e.pageX > this.lastPosition.x ) toRight = true;
if ( e.pageY > this.lastPosition.y ) toBottom = true;
var isHorizental = false;
if ( Math.abs( e.pageX - this.lastPosition.x ) > Math.abs( e.pageY - this.lastPosition.y ) ) isHorizental = true;
var increase = false;
if ( isHorizental ) {
if ( isBottom ) {
if ( !toRight ) increase = true;
}else{
if ( toRight ) increase = true;
}
}else{
if ( isRight ) {
if( toBottom ) increase = true;
}else{
if( !toBottom ) increase = true;
}
}
var displace = ( Math.sqrt(
Math.abs( e.pageX - this.lastPosition.x ) ** 2 +
Math.abs( e.pageY - this.lastPosition.y ) ** 2
) / this.rotateEnvironment ) * 360;
if ( !increase ) displace *= -1;
this.angle += displace;
this.timer = Date.now();
this.angle = this.angle % 360;
this.lastPosition.x = e.pageX;
this.lastPosition.y = e.pageY;
fitGradient( this.angle );
drawGradient( this.colors );
}
}.bind( this ) );
rotate.addEventListener( "mouseout", function (e) {
mouseup(e);
}.bind( this ) );
rotate.addEventListener( "mouseup", function (e) {
mouseup(e);
}.bind( this ) );
}.bind( this );
var mouseup = function (e) {
e.currentTarget.classList.remove( "gn8-gradiantor-rotating" );
this.lastPosition.x = e.pageX;
this.lastPosition.y = e.pageY;
}.bind( this );
var x = 1.6;
var width = this.toolContainer.offsetWidth;
var height = this.toolContainer.offsetHeight;
this.toolContainer.innerHTML = `
<div class="gn8-gradiantor-rotate"></div>
<div class="gn8-gradiantor-frame"></div>
<div class="gn8-gradiantor-gradient-container">
<div class="gn8-gradiantor-gradient-steps">
</div>
</div>
`;
var rotate = this.toolContainer.querySelector( ".gn8-gradiantor-rotate" );
rotate.style.width = width + "px";
rotate.style.height = height + "px";
rotate.style.left = "0px";
rotate.style.top = "0px";
this.rotateRect = rotate.getBoundingClientRect();
this.rotateEnvironment = Math.PI * width;
var frame = this.toolContainer.querySelector( ".gn8-gradiantor-frame" );
frame.style.width = width / x + "px";
frame.style.height = height / x + "px";
frame.style.left = ( width - width / x ) / 2 + "px";
frame.style.top = ( height - height / x ) / 2 + "px";
this.colors = sortColors( this.colors );
fitGradient( this.angle );
drawGradient( this.colors );
rotateGradient();
}
radial () {
var collectString = function () {
var colors = [];
this.colors.forEach( color => {
var percent = "";
if ( color[1] || color[1] === 0 ) percent = color[1] + "%";
colors.push( `${color[0]} ${percent}` );
} );
colors = colors.join();
if ( !this.isRepeating ) {
this.string = `radial-gradient(${this.shape} ${this.size} at ${this.center.x}% ${this.center.y}%,${colors})`;
}else{
this.string = `repeating-radial-gradient(${this.shape} ${this.size} at ${this.center.x}% ${this.center.y}%deg,${colors})`;
}
console.log(this.string);
}.bind( this );
var addColor = function ( index, color, percent, id ) {
var steps = this.toolContainer.querySelector( ".gn8-gradiantor-gradient-steps" );
var maxHeight = steps.offsetHeight;
var mark = document.createElement( "div" );
mark.classList.add( "gn8-gradiantor-picker-cursor" );
mark.innerHTML = `<span style="display: inline; background-color: ${color};" ></span>`;
mark.setAttribute( "data-color-index", index );
mark.setAttribute( "data-color-percn", percent );
mark.setAttribute( "data-color-id", id );
steps.appendChild( mark );
var top = percent - ( ( mark.offsetHeight / 2 ) / maxHeight ) * 100;
if ( ( ( percent / 100 ) * maxHeight + mark.offsetHeight ) > maxHeight ) {
top = ( ( maxHeight - mark.offsetHeight ) / maxHeight ) * 100;
}
if ( ( ( percent / 100 ) * maxHeight - mark.offsetHeight ) < 0 ) {
top = 0;
}
mark.style.top = top + "%";
mark.addEventListener( "click", function ( e ) {
manageColor( e );
} );
}.bind( this );
var manageColor = function (e) {
var markr = e.currentTarget;
var color = window.getComputedStyle( markr.querySelector( "span" ), null ).getPropertyValue("background-color");
var percn = parseInt( markr.getAttribute( "data-color-percn" ) );
var clrid = markr.getAttribute( "data-color-id" );
var index = markr.getAttribute( "data-color-index" );
var disabled = "";
var dlt = `<div id="${this.id}-delete" style="margin: 5%; font-size: 2em; color: red; cursor: pointer;">×</div>`;
if ( parseInt( index ) == 0 || index == this.colors.length - 1 ) {
dlt = `<div id="${this.id}-delete" style="margin: 5%; font-size: 2em; color: rgba(0,0,0,.2); cursor: not-allowed;">×</div>`;
}
this.toolbox.querySelectorAll( ".gn8-gradiantor-picker-cursor" ).forEach( element => {
element.classList.remove( "active" );
} );
markr.classList.add( "active" );
if ( !document.getElementById( this.id + "-lab" ) ) {
var lab = document.createElement( "div" );
lab.id = this.id + "-lab";
lab.style.zIndex = "100";
this.toolbox.appendChild( lab );
}
var lab = document.getElementById( this.id + "-lab" );
lab.innerHTML = `
<div style="display: flex; flex-direction: row; flex: 1; justify-content: center;">
<div id="${this.id}-color" style="background-color: ${color}; border: 1px solid rgb(200,200,200); border-radius: 5px; width: 40%; margin: 5%;"></div>
<div style="margin: 5%; width: 40%; display:flex; flex-direction:row; align-items: center;">
<input value="${percn}" name="percent" id="${this.id}-percent" type="number" min="0" max="100" step="5" style="padding: 5px; border-radius: 5px; border: 1px solid rgb(200,200,200);" ${disabled} >
<span style="padding: 3px;" >%</span>
</div>
${dlt}
</div>
<div class="gn8-gradiantor-wrap" ></div>
`;
lab.querySelector( `#${this.id}-percent` ).addEventListener( "change", function (e) {
let color = window.getComputedStyle( lab.querySelector( `#${this.id}-color` ), null ).getPropertyValue("background-color");
lab.querySelector( `#${this.id}-color` ).style.backgroundColor = color;
markr.querySelector( "span" ).style.backgroundColor = color;
for (let index = 0; index < this.colors.length; index++) {
const c = this.colors[index];
if ( c[2] == clrid ) {
var cIndex = index;
break;
}
}
updateColor( {
"id" : clrid,
"index" : cIndex,
"color" : color,
"percnt": parseInt( e.currentTarget.value )
} );
}.bind( this ) );
lab.querySelector( `#${this.id}-color` ).addEventListener( "click", function (e) {
var data = {
"id" : null,
"container" : this.toolbox,
"value" : window.getComputedStyle( e.currentTarget, null ).getPropertyValue("background-color")
}
var colorizer = new Gn8Colorize( data );
colorizer.init().then( success => {
let color = success.rgb;
lab.querySelector( `#${this.id}-color` ).style.backgroundColor = color;
markr.querySelector( "span" ).style.backgroundColor = color;
for (let index = 0; index < this.colors.length; index++) {
const c = this.colors[index];
if ( c[2] == clrid ) {
var cIndex = index;
break;
}
}
updateColor( {
"id" : clrid,
"index" : cIndex,
"color" : color,
"percnt": parseInt( lab.querySelector( `#${this.id}-percent` ).value )
} );
},error => {} );
}.bind( this ) );
lab.querySelector( `#${this.id}-delete` ).addEventListener( "click", function (e) {
for (let index = 0; index < this.colors.length; index++) {
const c = this.colors[index];
if ( c[2] == clrid ) {
var cIndex = index;
break;
}
}
if ( this.colors.length > 2 ) {
this.colors.splice(cIndex, 1);
drawGradient( this.colors );
lab.remove();
}
}.bind( this ) );
}.bind( this );
var updateColor = function ( data ) {
if ( typeof data.index != typeof undefined ) {
this.colors[ data.index ] = [
data.color, data.percnt, data.id
]
}else{
}
var colors = sortColors( this.colors );
drawGradient( colors );
}.bind( this );
var sortColors = function ( colors ) {
colors.sort( function( a, b ) {
return a[1] - b[1];
} );
return colors;
}
var fitGradient = function () {
var frame = this.toolContainer.querySelector( ".gn8-gradiantor-frame" );
var width = frame.offsetWidth;
var height = frame.offsetHeight;
var startPointX = ( this.center.x / 100 ) * width;
var startPointY = ( this.center.y / 100 ) * height;
if ( this.size == "farthest-corner" ){
var direction = -1;
var endPointX = 0;
if ( this.center.x < 50 ) {
endPointX = width;
direction = 1
}
var endPointY = 0;
var deg = (
Math.atan (
Math.abs( endPointX - startPointX ) / Math.abs( endPointY - startPointY )
) * 180 ) / Math.PI;
if ( this.center.y < 50 ) {
endPointY = height;
var deg = (
Math.atan (
Math.abs( endPointY - startPointY ) / Math.abs( endPointX - startPointX )
) * 180 ) / Math.PI + 90;
}
deg = deg * direction;
deg += 180;
var theHeight = Math.sqrt( Math.abs( endPointX - startPointX ) ** 2 + Math.abs( endPointY - startPointY ) ** 2 );
} else {
var x = ( this.center.x / 100 ) * width;
var y = ( this.center.y / 100 ) * height;
if ( this.center.x >= 50 ) x = width - x;
if ( this.center.y >= 50 ) y = height - y;
if ( x < y ) {
var endPointX = 0;
var deg = 90;
if ( this.center.x >= 50 ) {
endPointX = width;
var deg = -90 ;
}
var endPointY = startPointY;
var theHeight = x;
} else {
var endPointX = startPointX;
var endPointY = 0;
var deg = 180;
if ( this.center.y >= 50 ) {
endPointY = height;
var deg = 0;
}
var theHeight = y;
}
}
var gradient = this.toolContainer.querySelector( ".gn8-gradiantor-radial-gradient-container" );
gradient.style.width = "12px";
gradient.style.height = theHeight + "px";
gradient.style.left = ( startPointX - 6 ) + "px";
gradient.style.top = startPointY + "px";
gradient.style.webkitTransform = 'rotate('+deg+'deg)';
gradient.style.mozTransform = 'rotate('+deg+'deg)';
gradient.style.msTransform = 'rotate('+deg+'deg)';
gradient.style.oTransform = 'rotate('+deg+'deg)';
gradient.style.transform = 'rotate('+deg+'deg)';
}.bind( this );
var drawGradient = function ( colors ) {
colors = sortColors( colors );
var frame = this.toolContainer.querySelector( ".gn8-gradiantor-frame" );
var gradient = this.toolContainer.querySelector( ".gn8-gradiantor-radial-gradient-container" );
var stepsContainer = gradient.querySelector( ".gn8-gradiantor-gradient-steps" );
stepsContainer.innerHTML = `<canvas id="${this.id}-gradient-canvas" width="10" height="${stepsContainer.offsetHeight}"></canvas>`;
var canvas = document.getElementById( `${this.id}-gradient-canvas` );
var ctx = canvas.getContext("2d");
var grd = ctx.createLinearGradient(0, 0, 0, stepsContainer.offsetHeight);
// Fill with gradient
var colorsArray = [];
for (let index = 0; index < colors.length; index++) {
const color = colors[index];
colorsArray.push( `${color[0]} ${color[1]}%` );
}
for (let index = colors.length - 1; index >= 0; index--) {
const color = colors[index];
grd.addColorStop( color[1] / 100, color[0] );
addColor( index, color[0], color[1], color[2] );
}
ctx.fillStyle = grd;
ctx.fillRect(0, 0, 10, stepsContainer.offsetHeight);
if ( this.isRepeating ) {
var realBackgroundImage = `repeating-radial-gradient(${this.shape} ${this.size} at ${this.center.x}% ${this.center.y}%,${colorsArray.join(",")})`;
}else{
var realBackgroundImage = `radial-gradient(${this.shape} ${this.size} at ${this.center.x}% ${this.center.y}%,${colorsArray.join(",")})`;
}
frame.style.backgroundImage = realBackgroundImage;
canvas.addEventListener( "click", function (e) {
var c = e.currentTarget || e.target;
var ctx = c.getContext("2d");
var imgData = ctx.getImageData( e.offsetX, e.offsetY, 1, 1 );
var color = `rgba(${imgData.data[0]},${imgData.data[1]},${imgData.data[2]},${imgData.data[3]})`;
var percent = ( ( e.offsetY ) / c.height ) * 100;
var id = this.idFunction();
this.colors.push( [ color, percent, id ] );
drawGradient( this.colors );
}.bind( this ) );
collectString();
}.bind( this );
var circleSelected = "";
if ( this.shape == "circle" ) circleSelected = "checked";
var containSelected = "";
if ( this.size == "closest-side" ) containSelected = "checked";
var coverSelected = "";
if ( this.size == "farthest-corner" ) coverSelected = "checked";
var width = this.toolContainer.offsetWidth;
var height = this.toolContainer.offsetHeight;
this.toolContainer.innerHTML = `
<div class="gn8-gradiantor-frame radial"></div>
<div class="gn8-gradiantor-radial-gradient-container">
<div class="gn8-gradiantor-gradient-steps">
</div>
</div>
<ul class="gn8-gradiantor-radial-list" >
<div class="items" >
<p style="font-size:.8em; width: 100%">Coverage:</p>
<li style="display: flex; flex-direction: row; align-items: center; margin-left: 10px;" >
<input type="radio" id="${this.id}-is-contain" name="coverage" value="closest-side" ${containSelected} >
<label for="${this.id}-is-contain" style="font-size:.8em;">Contain</label>
<input type="radio" id="${this.id}-is-cover" name="coverage" value="farthest-corner" ${coverSelected} >
<label for="${this.id}-is-cover" style="font-size:.8em;">Cover</label>
</li>
</div>
<div class="items" >
<p style="font-size:.8em; width: 100%">Shape:</p>
<li style="display: flex; flex-direction: row; align-items: center; margin-left: 10px;" >
<input type="checkbox" id="${this.id}-is-circle" ${circleSelected} >
<label for="${this.id}-is-circle" style="font-size:.8em;">Circle</label>
</li>
</div>
</ul>
`;
this.toolContainer.querySelectorAll( "[name='coverage']" ).forEach( element => {
element.addEventListener( "change", function (e) {
this.size = this.toolContainer.querySelector( "[name='coverage']:checked" ).value;
fitGradient();
drawGradient( this.colors );
}.bind( this ) );
} );
this.toolContainer.querySelector( `#${this.id}-is-circle` ).addEventListener( "change", function (e) {
this.shape = "ellipse";
if ( e.target.checked ) {
this.shape = "circle";
}
fitGradient();
drawGradient( this.colors );
}.bind( this ) );
var frame = this.toolContainer.querySelector( ".gn8-gradiantor-frame" );
frame.style.width = width + "px";
frame.style.height = height - 70 + "px";
frame.style.left = 0 + "px";
frame.style.top = 0 + "px";
var frameMatrix = frame.getBoundingClientRect();
frame.addEventListener( "click", function (e) {
e.stopPropagation();
var x = e.pageX - frameMatrix[ "left" ];
var y = e.pageY - frameMatrix[ "top" ];
this.center.x = ( x / frameMatrix[ "width" ] ) * 100;
this.center.y = ( y / frameMatrix[ "height" ] ) * 100;
fitGradient();
drawGradient( this.colors );
}.bind( this ) );
this.colors = sortColors( this.colors );
fitGradient();
drawGradient( this.colors );
}
idFunction ( l ) {
if( !l ){
l = 31;
}else{
l = parseInt(l) - 1;
}
var r = "";
var p = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz123456789";
var f = "abcdefghijklmnopqrstuvwxyz";
for (var i = 0; i < l; i++){
r += p.charAt(Math.floor(Math.random() * p.length));
}
r = f.charAt(Math.floor(Math.random() * f.length)) + r;
return r;
}
}