svgedit
Version:
Powerful SVG-Editor for your browser
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JavaScript
/* eslint-disable max-len */
/* eslint-disable no-bitwise */
/**
* @external Math
*/
/**
* @memberof external:Math
* @param {Float} value
* @param {Float} precision
* @returns {Float}
*/
function toFixedNumeric (value, precision) {
if (precision === undefined) precision = 0;
return Math.round(value * (10 ** precision)) / (10 ** precision);
}
/**
* Whether a value is `null` or `undefined`.
* @param {any} val
* @returns {boolean}
*/
const isNullish = (val) => {
return val === null || val === undefined;
};
/**
* Controls for all the input elements for the typing in color values.
*/
export default class ColorValuePicker {
/**
* @param {external:jQuery} picker
* @param {external:jQuery.jPicker.Color} color
* @param {external:jQuery.fn.$.fn.jPicker} bindedHex
* @param {Float} alphaPrecision
*/
constructor (picker, color, bindedHex, alphaPrecision) {
const that = this; // private properties and methods
const inputs = picker.querySelectorAll('td.Text input');
// input box key down - use arrows to alter color
/**
*
* @param {Event} e
* @returns {Event|false|void}
*/
function keyDown (e) {
if (e.target.value === '' && e.target !== hex && ((!isNullish(bindedHex) && e.target !== bindedHex) || isNullish(bindedHex))) return undefined;
if (!validateKey(e)) return e;
switch (e.target) {
case red:
switch (e.keyCode) {
case 38:
red.value = setValueInRange.call(that, (red.value << 0) + 1, 0, 255);
color.val('r', red.value, e.target);
return false;
case 40:
red.value = setValueInRange.call(that, (red.value << 0) - 1, 0, 255);
color.val('r', red.value, e.target);
return false;
}
break;
case green:
switch (e.keyCode) {
case 38:
green.value = setValueInRange.call(that, (green.value << 0) + 1, 0, 255);
color.val('g', green.value, e.target);
return false;
case 40:
green.value = setValueInRange.call(that, (green.value << 0) - 1, 0, 255);
color.val('g', green.value, e.target);
return false;
}
break;
case blue:
switch (e.keyCode) {
case 38:
blue.value = setValueInRange.call(that, (blue.value << 0) + 1, 0, 255);
color.val('b', blue.value, e.target);
return false;
case 40:
blue.value = setValueInRange.call(that, (blue.value << 0) - 1, 0, 255);
color.val('b', blue.value, e.target);
return false;
}
break;
case alpha:
switch (e.keyCode) {
case 38:
alpha.value = setValueInRange.call(that, Number.parseFloat(alpha.value) + 1, 0, 100);
color.val('a', toFixedNumeric((alpha.value * 255) / 100, alphaPrecision), e.target);
return false;
case 40:
alpha.value = setValueInRange.call(that, Number.parseFloat(alpha.value) - 1, 0, 100);
color.val('a', toFixedNumeric((alpha.value * 255) / 100, alphaPrecision), e.target);
return false;
}
break;
case hue:
switch (e.keyCode) {
case 38:
hue.value = setValueInRange.call(that, (hue.value << 0) + 1, 0, 360);
color.val('h', hue.value, e.target);
return false;
case 40:
hue.value =setValueInRange.call(that, (hue.value << 0) - 1, 0, 360);
color.val('h', hue.value, e.target);
return false;
}
break;
case saturation:
switch (e.keyCode) {
case 38:
saturation.value = setValueInRange.call(that, (saturation.value << 0) + 1, 0, 100);
color.val('s', saturation.value, e.target);
return false;
case 40:
saturation.value = setValueInRange.call(that, (saturation.value << 0) - 1, 0, 100);
color.val('s', saturation.value, e.target);
return false;
}
break;
case value:
switch (e.keyCode) {
case 38:
value.value = setValueInRange.call(that, (value.value << 0) + 1, 0, 100);
color.val('v', value.value, e.target);
return false;
case 40:
value.value = setValueInRange.call(that, (value.value << 0) - 1, 0, 100);
color.val('v', value.value, e.target);
return false;
}
break;
}
return undefined;
}
// input box key up - validate value and set color
/**
* @param {Event} e
* @returns {Event|void}
* @todo Why is this returning an event?
*/
function keyUp (e) {
if (e.target.value === '' && e.target !== hex &&
((!isNullish(bindedHex) && e.target !== bindedHex) ||
isNullish(bindedHex))) return undefined;
if (!validateKey(e)) return e;
switch (e.target) {
case red:
red.value = setValueInRange.call(that, red.value, 0, 255);
color.val('r', red.value, e.target);
break;
case green:
green.value = setValueInRange.call(that, green.value, 0, 255);
color.val('g', green.value, e.target);
break;
case blue:
blue.value = setValueInRange.call(that, blue.value, 0, 255);
color.val('b', blue.value, e.target);
break;
case alpha:
alpha.value = setValueInRange.call(that, alpha.value, 0, 100);
color.val('a', toFixedNumeric((alpha.value * 255) / 100, alphaPrecision), e.target);
break;
case hue:
hue.value = setValueInRange.call(that, hue.value, 0, 360);
color.val('h', hue.value, e.target);
break;
case saturation:
saturation.value = setValueInRange.call(that, saturation.value, 0, 100);
color.val('s', saturation.value, e.target);
break;
case value:
value.value = setValueInRange.call(that, value.value, 0, 100);
color.val('v', value.value, e.target);
break;
case hex:
hex.value = hex.value.replace(/[^a-fA-F\d]/g, '').toLowerCase().substring(0, 6);
bindedHex && bindedHex.val(hex.value);
color.val('hex', hex.value !== '' ? hex.value : null, e.target);
break;
case bindedHex:
bindedHex.value = bindedHex.value.replace(/[^a-fA-F\d]/g, '').toLowerCase().substring(0, 6);
hex.val(bindedHex.value);
color.val('hex', bindedHex.value !== '' ? bindedHex.value : null, e.target);
break;
case ahex:
ahex.value = ahex.value.replace(/[^a-fA-F\d]/g, '').toLowerCase().substring(0, 2);
color.val('a', !isNullish(ahex.value) ? Number.parseInt(ahex.value, 16) : null, e.target);
break;
}
return undefined;
}
// input box blur - reset to original if value empty
/**
* @param {Event} e
* @returns {void}
*/
function blur (e) {
if (!isNullish(color.value)) {
switch (e.target) {
case red:
color.value = 'r';
red.value = color.value;
break;
case green:
color.value = 'g';
green.value = color.value;
break;
case blue:
color.value = 'b';
blue.value = color.value;
break;
case alpha:
color.value = 'a';
alpha.value = toFixedNumeric((color.value * 100) / 255, alphaPrecision);
break;
case hue:
color.value = 'h';
hue.value = color.value;
break;
case saturation:
color.value = 's';
saturation.value = color.value;
break;
case value:
color.value = 'v';
value.value = color.value;
break;
case hex:
case bindedHex:
color.value = 'hex';
hex.value = color.value;
bindedHex.value = color.value;
break;
case ahex:
color.value = 'ahex';
ahex.value = color.value.substring(6);
break;
}
}
}
/**
* @param {Event} e
* @returns {boolean}
*/
function validateKey (e) {
switch (e.keyCode) {
case 9:
case 16:
case 29:
case 37:
case 39:
return false;
case 'c'.charCodeAt():
case 'v'.charCodeAt():
if (e.ctrlKey) return false;
}
return true;
}
/**
* Constrain value within range.
* @param {Float|string} value
* @param {Float} min
* @param {Float} max
* @returns {Float|string} Returns a number or numeric string
*/
function setValueInRange (value, min, max) {
if (value === '' || isNaN(value)) return min;
if (value > max) return max;
if (value < min) return min;
return value;
}
/**
* @param {external:jQuery} ui
* @param {Element} context
* @returns {void}
*/
function colorChanged (ui, context) {
const all = ui.val('all');
if (context !== red) red.value = (!isNullish(all) ? all.r : '');
if (context !== green) green.value = (!isNullish(all) ? all.g : '');
if (context !== blue) blue.value = (!isNullish(all) ? all.b : '');
if (alpha && context !== alpha) alpha.value = (!isNullish(all) ? toFixedNumeric((all.a * 100) / 255, alphaPrecision) : '');
if (context !== hue) hue.value = (!isNullish(all) ? all.h : '');
if (context !== saturation) saturation.value = (!isNullish(all) ? all.s : '');
if (context !== value) value.value = (!isNullish(all) ? all.v : '');
if (context !== hex && ((bindedHex && context !== bindedHex) || !bindedHex)) hex.value = (!isNullish(all) ? all.hex : '');
if (bindedHex && context !== bindedHex && context !== hex) bindedHex.value = (!isNullish(all) ? all.hex : '');
if (ahex && context !== ahex) ahex.value = (!isNullish(all) ? all.ahex.substring(6) : '');
}
/**
* Unbind all events and null objects.
* @returns {void}
*/
function destroy () {
red.removeEventListener('keyup', keyUp);
green.removeEventListener('keyup', keyUp);
blue.removeEventListener('keyup', keyUp);
hue.removeEventListener('keyup', keyUp);
saturation.removeEventListener('keyup', keyUp);
value.removeEventListener('keyup', keyUp);
hex.removeEventListener('keyup', keyUp);
red.removeEventListener('blur', blur);
green.removeEventListener('blur', blur);
blue.removeEventListener('blur', blur);
hue.removeEventListener('blur', blur);
saturation.removeEventListener('blur', blur);
value.removeEventListener('blur', blur);
hex.removeEventListener('blur', blur);
red.removeEventListener('keydown', keyDown);
green.removeEventListener('keydown', keyDown);
blue.removeEventListener('keydown', keyDown);
hue.removeEventListener('keydown', keyDown);
saturation.removeEventListener('keydown', keyDown);
value.removeEventListener('keydown', keyDown);
if (alpha !== null) {
alpha.removeEventListener('keyup', keyUp);
alpha.removeEventListener('blur', blur);
alpha.removeEventListener('keydown', keyDown);
}
if (ahex !== null) {
ahex.removeEventListener('keyup', keyUp);
ahex.removeEventListener('blur', blur);
}
if (bindedHex !== null) {
bindedHex.removeEventListener('keyup', keyUp);
bindedHex.removeEventListener('blur', blur);
}
color.unbind(colorChanged);
red = null;
green = null;
blue = null;
alpha = null;
hue = null;
saturation = null;
value = null;
hex = null;
ahex = null;
}
let
red = inputs[3];
let green = inputs[4];
let blue = inputs[5];
let alpha = inputs.length > 7 ? inputs[6] : null;
let hue = inputs[0];
let saturation = inputs[1];
let value = inputs[2];
let hex = inputs[(inputs.length > 7) ? 7 : 6];
let ahex = inputs.length > 7 ? inputs[8] : null;
Object.assign(that, { destroy });
red.addEventListener('keyup', keyUp);
green.addEventListener('keyup', keyUp);
blue.addEventListener('keyup', keyUp);
hue.addEventListener('keyup', keyUp);
saturation.addEventListener('keyup', keyUp);
value.addEventListener('keyup', keyUp);
hex.addEventListener('keyup', keyUp);
red.addEventListener('blur', blur);
green.addEventListener('blur', blur);
blue.addEventListener('blur', blur);
hue.addEventListener('blur', blur);
saturation.addEventListener('blur', blur);
value.addEventListener('blur', blur);
hex.addEventListener('blur', blur);
red.addEventListener('keydown', keyDown);
green.addEventListener('keydown', keyDown);
blue.addEventListener('keydown', keyDown);
hue.addEventListener('keydown', keyDown);
saturation.addEventListener('keydown', keyDown);
value.addEventListener('keydown', keyDown);
if (alpha !== null) {
alpha.addEventListener('keyup', keyUp);
alpha.addEventListener('blur', blur);
alpha.addEventListener('keydown', keyDown);
}
if (ahex !== null) {
ahex.addEventListener('keyup', keyUp);
ahex.addEventListener('blur', blur);
}
if (bindedHex !== null) {
bindedHex.addEventListener('keyup', keyUp);
bindedHex.addEventListener('blur', blur);
}
color.bind(colorChanged);
}
}