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jscolor Color Picker
Detta skript bör inte installeras direkt. Det är ett bibliotek för andra skript att inkludera med meta-direktivet // @require https://update.greasyfork.org/scripts/19017/121465/jscolor.js
/**
* jscolor - JavaScript Color Picker
*
* @link http://jscolor.com
* @license For open source use: GPLv3
* For commercial use: JSColor Commercial License
* @author Jan Odvarko
* @version 2.0.4
*
* See usage examples at http://jscolor.com/examples/
*/
if (!window.jscolor) { window.jscolor = (function () {
var jsc = {
register : function () {
jsc.attachDOMReadyEvent(jsc.init);
jsc.attachEvent(document, 'mousedown', jsc.onDocumentMouseDown);
jsc.attachEvent(document, 'touchstart', jsc.onDocumentTouchStart);
jsc.attachEvent(window, 'resize', jsc.onWindowResize);
},
init : function () {
if (jsc.jscolor.lookupClass) {
jsc.jscolor.installByClassName(jsc.jscolor.lookupClass);
}
},
tryInstallOnElements : function (elms, className) {
var matchClass = new RegExp('(^|\\s)(' + className + ')(\\s*(\\{[^}]*\\})|\\s|$)', 'i');
for (var i = 0; i < elms.length; i += 1) {
if (elms[i].type !== undefined && elms[i].type.toLowerCase() == 'color') {
if (jsc.isColorAttrSupported) {
// skip inputs of type 'color' if supported by the browser
continue;
}
}
var m;
if (!elms[i].jscolor && elms[i].className && (m = elms[i].className.match(matchClass))) {
var targetElm = elms[i];
var optsStr = null;
var dataOptions = jsc.getDataAttr(targetElm, 'jscolor');
if (dataOptions !== null) {
optsStr = dataOptions;
} else if (m[4]) {
optsStr = m[4];
}
var opts = {};
if (optsStr) {
try {
opts = (new Function ('return (' + optsStr + ')'))();
} catch(eParseError) {
jsc.warn('Error parsing jscolor options: ' + eParseError + ':\n' + optsStr);
}
}
targetElm.jscolor = new jsc.jscolor(targetElm, opts);
}
}
},
isColorAttrSupported : (function () {
var elm = document.createElement('input');
if (elm.setAttribute) {
elm.setAttribute('type', 'color');
if (elm.type.toLowerCase() == 'color') {
return true;
}
}
return false;
})(),
isCanvasSupported : (function () {
var elm = document.createElement('canvas');
return !!(elm.getContext && elm.getContext('2d'));
})(),
fetchElement : function (mixed) {
return typeof mixed === 'string' ? document.getElementById(mixed) : mixed;
},
isElementType : function (elm, type) {
return elm.nodeName.toLowerCase() === type.toLowerCase();
},
getDataAttr : function (el, name) {
var attrName = 'data-' + name;
var attrValue = el.getAttribute(attrName);
if (attrValue !== null) {
return attrValue;
}
return null;
},
attachEvent : function (el, evnt, func) {
if (el.addEventListener) {
el.addEventListener(evnt, func, false);
} else if (el.attachEvent) {
el.attachEvent('on' + evnt, func);
}
},
detachEvent : function (el, evnt, func) {
if (el.removeEventListener) {
el.removeEventListener(evnt, func, false);
} else if (el.detachEvent) {
el.detachEvent('on' + evnt, func);
}
},
_attachedGroupEvents : {},
attachGroupEvent : function (groupName, el, evnt, func) {
if (!jsc._attachedGroupEvents.hasOwnProperty(groupName)) {
jsc._attachedGroupEvents[groupName] = [];
}
jsc._attachedGroupEvents[groupName].push([el, evnt, func]);
jsc.attachEvent(el, evnt, func);
},
detachGroupEvents : function (groupName) {
if (jsc._attachedGroupEvents.hasOwnProperty(groupName)) {
for (var i = 0; i < jsc._attachedGroupEvents[groupName].length; i += 1) {
var evt = jsc._attachedGroupEvents[groupName][i];
jsc.detachEvent(evt[0], evt[1], evt[2]);
}
delete jsc._attachedGroupEvents[groupName];
}
},
attachDOMReadyEvent : function (func) {
var fired = false;
var fireOnce = function () {
if (!fired) {
fired = true;
func();
}
};
if (document.readyState === 'complete') {
setTimeout(fireOnce, 1); // async
return;
}
if (document.addEventListener) {
document.addEventListener('DOMContentLoaded', fireOnce, false);
// Fallback
window.addEventListener('load', fireOnce, false);
} else if (document.attachEvent) {
// IE
document.attachEvent('onreadystatechange', function () {
if (document.readyState === 'complete') {
document.detachEvent('onreadystatechange', arguments.callee);
fireOnce();
}
})
// Fallback
window.attachEvent('onload', fireOnce);
// IE7/8
if (document.documentElement.doScroll && window == window.top) {
var tryScroll = function () {
if (!document.body) { return; }
try {
document.documentElement.doScroll('left');
fireOnce();
} catch (e) {
setTimeout(tryScroll, 1);
}
};
tryScroll();
}
}
},
warn : function (msg) {
if (window.console && window.console.warn) {
window.console.warn(msg);
}
},
preventDefault : function (e) {
if (e.preventDefault) { e.preventDefault(); }
e.returnValue = false;
},
captureTarget : function (target) {
// IE
if (target.setCapture) {
jsc._capturedTarget = target;
jsc._capturedTarget.setCapture();
}
},
releaseTarget : function () {
// IE
if (jsc._capturedTarget) {
jsc._capturedTarget.releaseCapture();
jsc._capturedTarget = null;
}
},
fireEvent : function (el, evnt) {
if (!el) {
return;
}
if (document.createEvent) {
var ev = document.createEvent('HTMLEvents');
ev.initEvent(evnt, true, true);
el.dispatchEvent(ev);
} else if (document.createEventObject) {
var ev = document.createEventObject();
el.fireEvent('on' + evnt, ev);
} else if (el['on' + evnt]) { // alternatively use the traditional event model
el['on' + evnt]();
}
},
classNameToList : function (className) {
return className.replace(/^\s+|\s+$/g, '').split(/\s+/);
},
// The className parameter (str) can only contain a single class name
hasClass : function (elm, className) {
if (!className) {
return false;
}
return -1 != (' ' + elm.className.replace(/\s+/g, ' ') + ' ').indexOf(' ' + className + ' ');
},
// The className parameter (str) can contain multiple class names separated by whitespace
setClass : function (elm, className) {
var classList = jsc.classNameToList(className);
for (var i = 0; i < classList.length; i += 1) {
if (!jsc.hasClass(elm, classList[i])) {
elm.className += (elm.className ? ' ' : '') + classList[i];
}
}
},
// The className parameter (str) can contain multiple class names separated by whitespace
unsetClass : function (elm, className) {
var classList = jsc.classNameToList(className);
for (var i = 0; i < classList.length; i += 1) {
var repl = new RegExp(
'^\\s*' + classList[i] + '\\s*|' +
'\\s*' + classList[i] + '\\s*$|' +
'\\s+' + classList[i] + '(\\s+)',
'g'
);
elm.className = elm.className.replace(repl, '$1');
}
},
getStyle : function (elm) {
return window.getComputedStyle ? window.getComputedStyle(elm) : elm.currentStyle;
},
setStyle : (function () {
var helper = document.createElement('div');
var getSupportedProp = function (names) {
for (var i = 0; i < names.length; i += 1) {
if (names[i] in helper.style) {
return names[i];
}
}
};
var props = {
borderRadius: getSupportedProp(['borderRadius', 'MozBorderRadius', 'webkitBorderRadius']),
boxShadow: getSupportedProp(['boxShadow', 'MozBoxShadow', 'webkitBoxShadow'])
};
return function (elm, prop, value) {
switch (prop.toLowerCase()) {
case 'opacity':
var alphaOpacity = Math.round(parseFloat(value) * 100);
elm.style.opacity = value;
elm.style.filter = 'alpha(opacity=' + alphaOpacity + ')';
break;
default:
elm.style[props[prop]] = value;
break;
}
};
})(),
setBorderRadius : function (elm, value) {
jsc.setStyle(elm, 'borderRadius', value || '0');
},
setBoxShadow : function (elm, value) {
jsc.setStyle(elm, 'boxShadow', value || 'none');
},
getElementPos : function (e, relativeToViewport) {
var x=0, y=0;
var rect = e.getBoundingClientRect();
x = rect.left;
y = rect.top;
if (!relativeToViewport) {
var viewPos = jsc.getViewPos();
x += viewPos[0];
y += viewPos[1];
}
return [x, y];
},
getElementSize : function (e) {
return [e.offsetWidth, e.offsetHeight];
},
// get pointer's X/Y coordinates relative to viewport
getAbsPointerPos : function (e) {
if (!e) { e = window.event; }
var x = 0, y = 0;
if (typeof e.changedTouches !== 'undefined' && e.changedTouches.length) {
// touch devices
x = e.changedTouches[0].clientX;
y = e.changedTouches[0].clientY;
} else if (typeof e.clientX === 'number') {
x = e.clientX;
y = e.clientY;
}
return { x: x, y: y };
},
// get pointer's X/Y coordinates relative to target element
getRelPointerPos : function (e) {
if (!e) { e = window.event; }
var target = e.target || e.srcElement;
var targetRect = target.getBoundingClientRect();
var x = 0, y = 0;
var clientX = 0, clientY = 0;
if (typeof e.changedTouches !== 'undefined' && e.changedTouches.length) {
// touch devices
clientX = e.changedTouches[0].clientX;
clientY = e.changedTouches[0].clientY;
} else if (typeof e.clientX === 'number') {
clientX = e.clientX;
clientY = e.clientY;
}
x = clientX - targetRect.left;
y = clientY - targetRect.top;
return { x: x, y: y };
},
getViewPos : function () {
var doc = document.documentElement;
return [
(window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0),
(window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0)
];
},
getViewSize : function () {
var doc = document.documentElement;
return [
(window.innerWidth || doc.clientWidth),
(window.innerHeight || doc.clientHeight),
];
},
redrawPosition : function () {
if (jsc.picker && jsc.picker.owner) {
var thisObj = jsc.picker.owner;
var tp, vp;
if (thisObj.fixed) {
// Fixed elements are positioned relative to viewport,
// therefore we can ignore the scroll offset
tp = jsc.getElementPos(thisObj.targetElement, true); // target pos
vp = [0, 0]; // view pos
} else {
tp = jsc.getElementPos(thisObj.targetElement); // target pos
vp = jsc.getViewPos(); // view pos
}
var ts = jsc.getElementSize(thisObj.targetElement); // target size
var vs = jsc.getViewSize(); // view size
var ps = jsc.getPickerOuterDims(thisObj); // picker size
var a, b, c;
switch (thisObj.position.toLowerCase()) {
case 'left': a=1; b=0; c=-1; break;
case 'right':a=1; b=0; c=1; break;
case 'top': a=0; b=1; c=-1; break;
default: a=0; b=1; c=1; break;
}
var l = (ts[b]+ps[b])/2;
// compute picker position
if (!thisObj.smartPosition) {
var pp = [
tp[a],
tp[b]+ts[b]-l+l*c
];
} else {
var pp = [
-vp[a]+tp[a]+ps[a] > vs[a] ?
(-vp[a]+tp[a]+ts[a]/2 > vs[a]/2 && tp[a]+ts[a]-ps[a] >= 0 ? tp[a]+ts[a]-ps[a] : tp[a]) :
tp[a],
-vp[b]+tp[b]+ts[b]+ps[b]-l+l*c > vs[b] ?
(-vp[b]+tp[b]+ts[b]/2 > vs[b]/2 && tp[b]+ts[b]-l-l*c >= 0 ? tp[b]+ts[b]-l-l*c : tp[b]+ts[b]-l+l*c) :
(tp[b]+ts[b]-l+l*c >= 0 ? tp[b]+ts[b]-l+l*c : tp[b]+ts[b]-l-l*c)
];
}
var x = pp[a];
var y = pp[b];
var positionValue = thisObj.fixed ? 'fixed' : 'absolute';
var contractShadow =
(pp[0] + ps[0] > tp[0] || pp[0] < tp[0] + ts[0]) &&
(pp[1] + ps[1] < tp[1] + ts[1]);
jsc._drawPosition(thisObj, x, y, positionValue, contractShadow);
}
},
_drawPosition : function (thisObj, x, y, positionValue, contractShadow) {
var vShadow = contractShadow ? 0 : thisObj.shadowBlur; // px
jsc.picker.wrap.style.position = positionValue;
jsc.picker.wrap.style.left = x + 'px';
jsc.picker.wrap.style.top = y + 'px';
jsc.setBoxShadow(
jsc.picker.boxS,
thisObj.shadow ?
new jsc.BoxShadow(0, vShadow, thisObj.shadowBlur, 0, thisObj.shadowColor) :
null);
},
getPickerDims : function (thisObj) {
var displaySlider = !!jsc.getSliderComponent(thisObj);
var dims = [
2 * thisObj.insetWidth + 2 * thisObj.padding + thisObj.width +
(displaySlider ? 2 * thisObj.insetWidth + jsc.getPadToSliderPadding(thisObj) + thisObj.sliderSize : 0),
2 * thisObj.insetWidth + 2 * thisObj.padding + thisObj.height +
(thisObj.closable ? 2 * thisObj.insetWidth + thisObj.padding + thisObj.buttonHeight : 0)
];
return dims;
},
getPickerOuterDims : function (thisObj) {
var dims = jsc.getPickerDims(thisObj);
return [
dims[0] + 2 * thisObj.borderWidth,
dims[1] + 2 * thisObj.borderWidth
];
},
getPadToSliderPadding : function (thisObj) {
return Math.max(thisObj.padding, 1.5 * (2 * thisObj.pointerBorderWidth + thisObj.pointerThickness));
},
getPadYComponent : function (thisObj) {
switch (thisObj.mode.charAt(1).toLowerCase()) {
case 'v': return 'v'; break;
}
return 's';
},
getSliderComponent : function (thisObj) {
if (thisObj.mode.length > 2) {
switch (thisObj.mode.charAt(2).toLowerCase()) {
case 's': return 's'; break;
case 'v': return 'v'; break;
}
}
return null;
},
onDocumentMouseDown : function (e) {
if (!e) { e = window.event; }
var target = e.target || e.srcElement;
if (target._jscLinkedInstance) {
if (target._jscLinkedInstance.showOnClick) {
target._jscLinkedInstance.show();
}
} else if (target._jscControlName) {
jsc.onControlPointerStart(e, target, target._jscControlName, 'mouse');
} else {
// Mouse is outside the picker controls -> hide the color picker!
if (jsc.picker && jsc.picker.owner) {
jsc.picker.owner.hide();
}
}
},
onDocumentTouchStart : function (e) {
if (!e) { e = window.event; }
var target = e.target || e.srcElement;
if (target._jscLinkedInstance) {
if (target._jscLinkedInstance.showOnClick) {
target._jscLinkedInstance.show();
}
} else if (target._jscControlName) {
jsc.onControlPointerStart(e, target, target._jscControlName, 'touch');
} else {
if (jsc.picker && jsc.picker.owner) {
jsc.picker.owner.hide();
}
}
},
onWindowResize : function (e) {
jsc.redrawPosition();
},
onParentScroll : function (e) {
// hide the picker when one of the parent elements is scrolled
if (jsc.picker && jsc.picker.owner) {
jsc.picker.owner.hide();
}
},
_pointerMoveEvent : {
mouse: 'mousemove',
touch: 'touchmove'
},
_pointerEndEvent : {
mouse: 'mouseup',
touch: 'touchend'
},
_pointerOrigin : null,
_capturedTarget : null,
onControlPointerStart : function (e, target, controlName, pointerType) {
var thisObj = target._jscInstance;
jsc.preventDefault(e);
jsc.captureTarget(target);
var registerDragEvents = function (doc, offset) {
jsc.attachGroupEvent('drag', doc, jsc._pointerMoveEvent[pointerType],
jsc.onDocumentPointerMove(e, target, controlName, pointerType, offset));
jsc.attachGroupEvent('drag', doc, jsc._pointerEndEvent[pointerType],
jsc.onDocumentPointerEnd(e, target, controlName, pointerType));
};
registerDragEvents(document, [0, 0]);
if (window.parent && window.frameElement) {
var rect = window.frameElement.getBoundingClientRect();
var ofs = [-rect.left, -rect.top];
registerDragEvents(window.parent.window.document, ofs);
}
var abs = jsc.getAbsPointerPos(e);
var rel = jsc.getRelPointerPos(e);
jsc._pointerOrigin = {
x: abs.x - rel.x,
y: abs.y - rel.y
};
switch (controlName) {
case 'pad':
// if the slider is at the bottom, move it up
switch (jsc.getSliderComponent(thisObj)) {
case 's': if (thisObj.hsv[1] === 0) { thisObj.fromHSV(null, 100, null); }; break;
case 'v': if (thisObj.hsv[2] === 0) { thisObj.fromHSV(null, null, 100); }; break;
}
jsc.setPad(thisObj, e, 0, 0);
break;
case 'sld':
jsc.setSld(thisObj, e, 0);
break;
}
jsc.dispatchFineChange(thisObj);
},
onDocumentPointerMove : function (e, target, controlName, pointerType, offset) {
return function (e) {
var thisObj = target._jscInstance;
switch (controlName) {
case 'pad':
if (!e) { e = window.event; }
jsc.setPad(thisObj, e, offset[0], offset[1]);
jsc.dispatchFineChange(thisObj);
break;
case 'sld':
if (!e) { e = window.event; }
jsc.setSld(thisObj, e, offset[1]);
jsc.dispatchFineChange(thisObj);
break;
}
}
},
onDocumentPointerEnd : function (e, target, controlName, pointerType) {
return function (e) {
var thisObj = target._jscInstance;
jsc.detachGroupEvents('drag');
jsc.releaseTarget();
// Always dispatch changes after detaching outstanding mouse handlers,
// in case some user interaction will occur in user's onchange callback
// that would intrude with current mouse events
jsc.dispatchChange(thisObj);
};
},
dispatchChange : function (thisObj) {
if (thisObj.valueElement) {
if (jsc.isElementType(thisObj.valueElement, 'input')) {
jsc.fireEvent(thisObj.valueElement, 'change');
}
}
},
dispatchFineChange : function (thisObj) {
if (thisObj.onFineChange) {
var callback;
if (typeof thisObj.onFineChange === 'string') {
callback = new Function (thisObj.onFineChange);
} else {
callback = thisObj.onFineChange;
}
callback.call(thisObj);
}
},
setPad : function (thisObj, e, ofsX, ofsY) {
var pointerAbs = jsc.getAbsPointerPos(e);
var x = ofsX + pointerAbs.x - jsc._pointerOrigin.x - thisObj.padding - thisObj.insetWidth;
var y = ofsY + pointerAbs.y - jsc._pointerOrigin.y - thisObj.padding - thisObj.insetWidth;
var xVal = x * (360 / (thisObj.width - 1));
var yVal = 100 - (y * (100 / (thisObj.height - 1)));
switch (jsc.getPadYComponent(thisObj)) {
case 's': thisObj.fromHSV(xVal, yVal, null, jsc.leaveSld); break;
case 'v': thisObj.fromHSV(xVal, null, yVal, jsc.leaveSld); break;
}
},
setSld : function (thisObj, e, ofsY) {
var pointerAbs = jsc.getAbsPointerPos(e);
var y = ofsY + pointerAbs.y - jsc._pointerOrigin.y - thisObj.padding - thisObj.insetWidth;
var yVal = 100 - (y * (100 / (thisObj.height - 1)));
switch (jsc.getSliderComponent(thisObj)) {
case 's': thisObj.fromHSV(null, yVal, null, jsc.leavePad); break;
case 'v': thisObj.fromHSV(null, null, yVal, jsc.leavePad); break;
}
},
_vmlNS : 'jsc_vml_',
_vmlCSS : 'jsc_vml_css_',
_vmlReady : false,
initVML : function () {
if (!jsc._vmlReady) {
// init VML namespace
var doc = document;
if (!doc.namespaces[jsc._vmlNS]) {
doc.namespaces.add(jsc._vmlNS, 'urn:schemas-microsoft-com:vml');
}
if (!doc.styleSheets[jsc._vmlCSS]) {
var tags = ['shape', 'shapetype', 'group', 'background', 'path', 'formulas', 'handles', 'fill', 'stroke', 'shadow', 'textbox', 'textpath', 'imagedata', 'line', 'polyline', 'curve', 'rect', 'roundrect', 'oval', 'arc', 'image'];
var ss = doc.createStyleSheet();
ss.owningElement.id = jsc._vmlCSS;
for (var i = 0; i < tags.length; i += 1) {
ss.addRule(jsc._vmlNS + '\\:' + tags[i], 'behavior:url(#default#VML);');
}
}
jsc._vmlReady = true;
}
},
createPalette : function () {
var paletteObj = {
elm: null,
draw: null
};
if (jsc.isCanvasSupported) {
// Canvas implementation for modern browsers
var canvas = document.createElement('canvas');
var ctx = canvas.getContext('2d');
var drawFunc = function (width, height, type) {
canvas.width = width;
canvas.height = height;
ctx.clearRect(0, 0, canvas.width, canvas.height);
var hGrad = ctx.createLinearGradient(0, 0, canvas.width, 0);
hGrad.addColorStop(0 / 6, '#F00');
hGrad.addColorStop(1 / 6, '#FF0');
hGrad.addColorStop(2 / 6, '#0F0');
hGrad.addColorStop(3 / 6, '#0FF');
hGrad.addColorStop(4 / 6, '#00F');
hGrad.addColorStop(5 / 6, '#F0F');
hGrad.addColorStop(6 / 6, '#F00');
ctx.fillStyle = hGrad;
ctx.fillRect(0, 0, canvas.width, canvas.height);
var vGrad = ctx.createLinearGradient(0, 0, 0, canvas.height);
switch (type.toLowerCase()) {
case 's':
vGrad.addColorStop(0, 'rgba(255,255,255,0)');
vGrad.addColorStop(1, 'rgba(255,255,255,1)');
break;
case 'v':
vGrad.addColorStop(0, 'rgba(0,0,0,0)');
vGrad.addColorStop(1, 'rgba(0,0,0,1)');
break;
}
ctx.fillStyle = vGrad;
ctx.fillRect(0, 0, canvas.width, canvas.height);
};
paletteObj.elm = canvas;
paletteObj.draw = drawFunc;
} else {
// VML fallback for IE 7 and 8
jsc.initVML();
var vmlContainer = document.createElement('div');
vmlContainer.style.position = 'relative';
vmlContainer.style.overflow = 'hidden';
var hGrad = document.createElement(jsc._vmlNS + ':fill');
hGrad.type = 'gradient';
hGrad.method = 'linear';
hGrad.angle = '90';
hGrad.colors = '16.67% #F0F, 33.33% #00F, 50% #0FF, 66.67% #0F0, 83.33% #FF0'
var hRect = document.createElement(jsc._vmlNS + ':rect');
hRect.style.position = 'absolute';
hRect.style.left = -1 + 'px';
hRect.style.top = -1 + 'px';
hRect.stroked = false;
hRect.appendChild(hGrad);
vmlContainer.appendChild(hRect);
var vGrad = document.createElement(jsc._vmlNS + ':fill');
vGrad.type = 'gradient';
vGrad.method = 'linear';
vGrad.angle = '180';
vGrad.opacity = '0';
var vRect = document.createElement(jsc._vmlNS + ':rect');
vRect.style.position = 'absolute';
vRect.style.left = -1 + 'px';
vRect.style.top = -1 + 'px';
vRect.stroked = false;
vRect.appendChild(vGrad);
vmlContainer.appendChild(vRect);
var drawFunc = function (width, height, type) {
vmlContainer.style.width = width + 'px';
vmlContainer.style.height = height + 'px';
hRect.style.width =
vRect.style.width =
(width + 1) + 'px';
hRect.style.height =
vRect.style.height =
(height + 1) + 'px';
// Colors must be specified during every redraw, otherwise IE won't display
// a full gradient during a subsequential redraw
hGrad.color = '#F00';
hGrad.color2 = '#F00';
switch (type.toLowerCase()) {
case 's':
vGrad.color = vGrad.color2 = '#FFF';
break;
case 'v':
vGrad.color = vGrad.color2 = '#000';
break;
}
};
paletteObj.elm = vmlContainer;
paletteObj.draw = drawFunc;
}
return paletteObj;
},
createSliderGradient : function () {
var sliderObj = {
elm: null,
draw: null
};
if (jsc.isCanvasSupported) {
// Canvas implementation for modern browsers
var canvas = document.createElement('canvas');
var ctx = canvas.getContext('2d');
var drawFunc = function (width, height, color1, color2) {
canvas.width = width;
canvas.height = height;
ctx.clearRect(0, 0, canvas.width, canvas.height);
var grad = ctx.createLinearGradient(0, 0, 0, canvas.height);
grad.addColorStop(0, color1);
grad.addColorStop(1, color2);
ctx.fillStyle = grad;
ctx.fillRect(0, 0, canvas.width, canvas.height);
};
sliderObj.elm = canvas;
sliderObj.draw = drawFunc;
} else {
// VML fallback for IE 7 and 8
jsc.initVML();
var vmlContainer = document.createElement('div');
vmlContainer.style.position = 'relative';
vmlContainer.style.overflow = 'hidden';
var grad = document.createElement(jsc._vmlNS + ':fill');
grad.type = 'gradient';
grad.method = 'linear';
grad.angle = '180';
var rect = document.createElement(jsc._vmlNS + ':rect');
rect.style.position = 'absolute';
rect.style.left = -1 + 'px';
rect.style.top = -1 + 'px';
rect.stroked = false;
rect.appendChild(grad);
vmlContainer.appendChild(rect);
var drawFunc = function (width, height, color1, color2) {
vmlContainer.style.width = width + 'px';
vmlContainer.style.height = height + 'px';
rect.style.width = (width + 1) + 'px';
rect.style.height = (height + 1) + 'px';
grad.color = color1;
grad.color2 = color2;
};
sliderObj.elm = vmlContainer;
sliderObj.draw = drawFunc;
}
return sliderObj;
},
leaveValue : 1<<0,
leaveStyle : 1<<1,
leavePad : 1<<2,
leaveSld : 1<<3,
BoxShadow : (function () {
var BoxShadow = function (hShadow, vShadow, blur, spread, color, inset) {
this.hShadow = hShadow;
this.vShadow = vShadow;
this.blur = blur;
this.spread = spread;
this.color = color;
this.inset = !!inset;
};
BoxShadow.prototype.toString = function () {
var vals = [
Math.round(this.hShadow) + 'px',
Math.round(this.vShadow) + 'px',
Math.round(this.blur) + 'px',
Math.round(this.spread) + 'px',
this.color
];
if (this.inset) {
vals.push('inset');
}
return vals.join(' ');
};
return BoxShadow;
})(),
//
// Usage:
// var myColor = new jscolor(<targetElement> [, <options>])
//
jscolor : function (targetElement, options) {
// General options
//
this.value = null; // initial HEX color. To change it later, use methods fromString(), fromHSV() and fromRGB()
this.valueElement = targetElement; // element that will be used to display and input the color code
this.styleElement = targetElement; // element that will preview the picked color using CSS backgroundColor
this.required = true; // whether the associated text <input> can be left empty
this.refine = true; // whether to refine the entered color code (e.g. uppercase it and remove whitespace)
this.hash = false; // whether to prefix the HEX color code with # symbol
this.uppercase = true; // whether to uppercase the color code
this.onFineChange = null; // called instantly every time the color changes (value can be either a function or a string with javascript code)
this.activeClass = 'jscolor-active'; // class to be set to the target element when a picker window is open on it
this.minS = 0; // min allowed saturation (0 - 100)
this.maxS = 100; // max allowed saturation (0 - 100)
this.minV = 0; // min allowed value (brightness) (0 - 100)
this.maxV = 100; // max allowed value (brightness) (0 - 100)
// Accessing the picked color
//
this.hsv = [0, 0, 100]; // read-only [0-360, 0-100, 0-100]
this.rgb = [255, 255, 255]; // read-only [0-255, 0-255, 0-255]
// Color Picker options
//
this.width = 181; // width of color palette (in px)
this.height = 101; // height of color palette (in px)
this.showOnClick = true; // whether to display the color picker when user clicks on its target element
this.mode = 'HSV'; // HSV | HVS | HS | HV - layout of the color picker controls
this.position = 'bottom'; // left | right | top | bottom - position relative to the target element
this.smartPosition = true; // automatically change picker position when there is not enough space for it
this.sliderSize = 16; // px
this.crossSize = 8; // px
this.closable = false; // whether to display the Close button
this.closeText = 'Close';
this.buttonColor = '#000000'; // CSS color
this.buttonHeight = 18; // px
this.padding = 12; // px
this.backgroundColor = '#FFFFFF'; // CSS color
this.borderWidth = 1; // px
this.borderColor = '#BBBBBB'; // CSS color
this.borderRadius = 8; // px
this.insetWidth = 1; // px
this.insetColor = '#BBBBBB'; // CSS color
this.shadow = true; // whether to display shadow
this.shadowBlur = 15; // px
this.shadowColor = 'rgba(0,0,0,0.2)'; // CSS color
this.pointerColor = '#4C4C4C'; // px
this.pointerBorderColor = '#FFFFFF'; // px
this.pointerBorderWidth = 1; // px
this.pointerThickness = 2; // px
this.zIndex = 1000;
this.container = null; // where to append the color picker (BODY element by default)
for (var opt in options) {
if (options.hasOwnProperty(opt)) {
this[opt] = options[opt];
}
}
this.hide = function () {
if (isPickerOwner()) {
detachPicker();
}
};
this.show = function () {
drawPicker();
};
this.redraw = function () {
if (isPickerOwner()) {
drawPicker();
}
};
this.importColor = function () {
if (!this.valueElement) {
this.exportColor();
} else {
if (jsc.isElementType(this.valueElement, 'input')) {
if (!this.refine) {
if (!this.fromString(this.valueElement.value, jsc.leaveValue)) {
if (this.styleElement) {
this.styleElement.style.backgroundImage = this.styleElement._jscOrigStyle.backgroundImage;
this.styleElement.style.backgroundColor = this.styleElement._jscOrigStyle.backgroundColor;
this.styleElement.style.color = this.styleElement._jscOrigStyle.color;
}
this.exportColor(jsc.leaveValue | jsc.leaveStyle);
}
} else if (!this.required && /^\s*$/.test(this.valueElement.value)) {
this.valueElement.value = '';
if (this.styleElement) {
this.styleElement.style.backgroundImage = this.styleElement._jscOrigStyle.backgroundImage;
this.styleElement.style.backgroundColor = this.styleElement._jscOrigStyle.backgroundColor;
this.styleElement.style.color = this.styleElement._jscOrigStyle.color;
}
this.exportColor(jsc.leaveValue | jsc.leaveStyle);
} else if (this.fromString(this.valueElement.value)) {
// managed to import color successfully from the value -> OK, don't do anything
} else {
this.exportColor();
}
} else {
// not an input element -> doesn't have any value
this.exportColor();
}
}
};
this.exportColor = function (flags) {
if (!(flags & jsc.leaveValue) && this.valueElement) {
var value = this.toString();
if (this.uppercase) { value = value.toUpperCase(); }
if (this.hash) { value = '#' + value; }
if (jsc.isElementType(this.valueElement, 'input')) {
this.valueElement.value = value;
} else {
this.valueElement.innerHTML = value;
}
}
if (!(flags & jsc.leaveStyle)) {
if (this.styleElement) {
this.styleElement.style.backgroundImage = 'none';
this.styleElement.style.backgroundColor = '#' + this.toString();
this.styleElement.style.color = this.isLight() ? '#000' : '#FFF';
}
}
if (!(flags & jsc.leavePad) && isPickerOwner()) {
redrawPad();
}
if (!(flags & jsc.leaveSld) && isPickerOwner()) {
redrawSld();
}
};
// h: 0-360
// s: 0-100
// v: 0-100
//
this.fromHSV = function (h, s, v, flags) { // null = don't change
if (h !== null) {
if (isNaN(h)) { return false; }
h = Math.max(0, Math.min(360, h));
}
if (s !== null) {
if (isNaN(s)) { return false; }
s = Math.max(0, Math.min(100, this.maxS, s), this.minS);
}
if (v !== null) {
if (isNaN(v)) { return false; }
v = Math.max(0, Math.min(100, this.maxV, v), this.minV);
}
this.rgb = HSV_RGB(
h===null ? this.hsv[0] : (this.hsv[0]=h),
s===null ? this.hsv[1] : (this.hsv[1]=s),
v===null ? this.hsv[2] : (this.hsv[2]=v)
);
this.exportColor(flags);
};
// r: 0-255
// g: 0-255
// b: 0-255
//
this.fromRGB = function (r, g, b, flags) { // null = don't change
if (r !== null) {
if (isNaN(r)) { return false; }
r = Math.max(0, Math.min(255, r));
}
if (g !== null) {
if (isNaN(g)) { return false; }
g = Math.max(0, Math.min(255, g));
}
if (b !== null) {
if (isNaN(b)) { return false; }
b = Math.max(0, Math.min(255, b));
}
var hsv = RGB_HSV(
r===null ? this.rgb[0] : r,
g===null ? this.rgb[1] : g,
b===null ? this.rgb[2] : b
);
if (hsv[0] !== null) {
this.hsv[0] = Math.max(0, Math.min(360, hsv[0]));
}
if (hsv[2] !== 0) {
this.hsv[1] = hsv[1]===null ? null : Math.max(0, this.minS, Math.min(100, this.maxS, hsv[1]));
}
this.hsv[2] = hsv[2]===null ? null : Math.max(0, this.minV, Math.min(100, this.maxV, hsv[2]));
// update RGB according to final HSV, as some values might be trimmed
var rgb = HSV_RGB(this.hsv[0], this.hsv[1], this.hsv[2]);
this.rgb[0] = rgb[0];
this.rgb[1] = rgb[1];
this.rgb[2] = rgb[2];
this.exportColor(flags);
};
this.fromString = function (str, flags) {
var m;
if (m = str.match(/^\W*([0-9A-F]{3}([0-9A-F]{3})?)\W*$/i)) {
// HEX notation
//
if (m[1].length === 6) {
// 6-char notation
this.fromRGB(
parseInt(m[1].substr(0,2),16),
parseInt(m[1].substr(2,2),16),
parseInt(m[1].substr(4,2),16),
flags
);
} else {
// 3-char notation
this.fromRGB(
parseInt(m[1].charAt(0) + m[1].charAt(0),16),
parseInt(m[1].charAt(1) + m[1].charAt(1),16),
parseInt(m[1].charAt(2) + m[1].charAt(2),16),
flags
);
}
return true;
} else if (m = str.match(/^\W*rgba?\(([^)]*)\)\W*$/i)) {
var params = m[1].split(',');
var re = /^\s*(\d*)(\.\d+)?\s*$/;
var mR, mG, mB;
if (
params.length >= 3 &&
(mR = params[0].match(re)) &&
(mG = params[1].match(re)) &&
(mB = params[2].match(re))
) {
var r = parseFloat((mR[1] || '0') + (mR[2] || ''));
var g = parseFloat((mG[1] || '0') + (mG[2] || ''));
var b = parseFloat((mB[1] || '0') + (mB[2] || ''));
this.fromRGB(r, g, b, flags);
return true;
}
}
return false;
};
this.toString = function () {
return (
(0x100 | Math.round(this.rgb[0])).toString(16).substr(1) +
(0x100 | Math.round(this.rgb[1])).toString(16).substr(1) +
(0x100 | Math.round(this.rgb[2])).toString(16).substr(1)
);
};
this.toHEXString = function () {
return '#' + this.toString().toUpperCase();
};
this.toRGBString = function () {
return ('rgb(' +
Math.round(this.rgb[0]) + ',' +
Math.round(this.rgb[1]) + ',' +
Math.round(this.rgb[2]) + ')'
);
};
this.isLight = function () {
return (
0.213 * this.rgb[0] +
0.715 * this.rgb[1] +
0.072 * this.rgb[2] >
255 / 2
);
};
this._processParentElementsInDOM = function () {
if (this._linkedElementsProcessed) { return; }
this._linkedElementsProcessed = true;
var elm = this.targetElement;
do {
// If the target element or one of its parent nodes has fixed position,
// then use fixed positioning instead
//
// Note: In Firefox, getComputedStyle returns null in a hidden iframe,
// that's why we need to check if the returned style object is non-empty
var currStyle = jsc.getStyle(elm);
if (currStyle && currStyle.position.toLowerCase() === 'fixed') {
this.fixed = true;
}
if (elm !== this.targetElement) {
// Ensure to attach onParentScroll only once to each parent element
// (multiple targetElements can share the same parent nodes)
//
// Note: It's not just offsetParents that can be scrollable,
// that's why we loop through all parent nodes
if (!elm._jscEventsAttached) {
jsc.attachEvent(elm, 'scroll', jsc.onParentScroll);
elm._jscEventsAttached = true;
}
}
} while ((elm = elm.parentNode) && !jsc.isElementType(elm, 'body'));
};
// r: 0-255
// g: 0-255
// b: 0-255
//
// returns: [ 0-360, 0-100, 0-100 ]
//
function RGB_HSV (r, g, b) {
r /= 255;
g /= 255;
b /= 255;
var n = Math.min(Math.min(r,g),b);
var v = Math.max(Math.max(r,g),b);
var m = v - n;
if (m === 0) { return [ null, 0, 100 * v ]; }
var h = r===n ? 3+(b-g)/m : (g===n ? 5+(r-b)/m : 1+(g-r)/m);
return [
60 * (h===6?0:h),
100 * (m/v),
100 * v
];
}
// h: 0-360
// s: 0-100
// v: 0-100
//
// returns: [ 0-255, 0-255, 0-255 ]
//
function HSV_RGB (h, s, v) {
var u = 255 * (v / 100);
if (h === null) {
return [ u, u, u ];
}
h /= 60;
s /= 100;
var i = Math.floor(h);
var f = i%2 ? h-i : 1-(h-i);
var m = u * (1 - s);
var n = u * (1 - s * f);
switch (i) {
case 6:
case 0: return [u,n,m];
case 1: return [n,u,m];
case 2: return [m,u,n];
case 3: return [m,n,u];
case 4: return [n,m,u];
case 5: return [u,m,n];
}
}
function detachPicker () {
jsc.unsetClass(THIS.targetElement, THIS.activeClass);
jsc.picker.wrap.parentNode.removeChild(jsc.picker.wrap);
delete jsc.picker.owner;
}
function drawPicker () {
// At this point, when drawing the picker, we know what the parent elements are
// and we can do all related DOM operations, such as registering events on them
// or checking their positioning
THIS._processParentElementsInDOM();
if (!jsc.picker) {
jsc.picker = {
owner: null,
wrap : document.createElement('div'),
box : document.createElement('div'),
boxS : document.createElement('div'), // shadow area
boxB : document.createElement('div'), // border
pad : document.createElement('div'),
padB : document.createElement('div'), // border
padM : document.createElement('div'), // mouse/touch area
padPal : jsc.createPalette(),
cross : document.createElement('div'),
crossBY : document.createElement('div'), // border Y
crossBX : document.createElement('div'), // border X
crossLY : document.createElement('div'), // line Y
crossLX : document.createElement('div'), // line X
sld : document.createElement('div'),
sldB : document.createElement('div'), // border
sldM : document.createElement('div'), // mouse/touch area
sldGrad : jsc.createSliderGradient(),
sldPtrS : document.createElement('div'), // slider pointer spacer
sldPtrIB : document.createElement('div'), // slider pointer inner border
sldPtrMB : document.createElement('div'), // slider pointer middle border
sldPtrOB : document.createElement('div'), // slider pointer outer border
btn : document.createElement('div'),
btnT : document.createElement('span') // text
};
jsc.picker.pad.appendChild(jsc.picker.padPal.elm);
jsc.picker.padB.appendChild(jsc.picker.pad);
jsc.picker.cross.appendChild(jsc.picker.crossBY);
jsc.picker.cross.appendChild(jsc.picker.crossBX);
jsc.picker.cross.appendChild(jsc.picker.crossLY);
jsc.picker.cross.appendChild(jsc.picker.crossLX);
jsc.picker.padB.appendChild(jsc.picker.cross);
jsc.picker.box.appendChild(jsc.picker.padB);
jsc.picker.box.appendChild(jsc.picker.padM);
jsc.picker.sld.appendChild(jsc.picker.sldGrad.elm);
jsc.picker.sldB.appendChild(jsc.picker.sld);
jsc.picker.sldB.appendChild(jsc.picker.sldPtrOB);
jsc.picker.sldPtrOB.appendChild(jsc.picker.sldPtrMB);
jsc.picker.sldPtrMB.appendChild(jsc.picker.sldPtrIB);
jsc.picker.sldPtrIB.appendChild(jsc.picker.sldPtrS);
jsc.picker.box.appendChild(jsc.picker.sldB);
jsc.picker.box.appendChild(jsc.picker.sldM);
jsc.picker.btn.appendChild(jsc.picker.btnT);
jsc.picker.box.appendChild(jsc.picker.btn);
jsc.picker.boxB.appendChild(jsc.picker.box);
jsc.picker.wrap.appendChild(jsc.picker.boxS);
jsc.picker.wrap.appendChild(jsc.picker.boxB);
}
var p = jsc.picker;
var displaySlider = !!jsc.getSliderComponent(THIS);
var dims = jsc.getPickerDims(THIS);
var crossOuterSize = (2 * THIS.pointerBorderWidth + THIS.pointerThickness + 2 * THIS.crossSize);
var padToSliderPadding = jsc.getPadToSliderPadding(THIS);
var borderRadius = Math.min(
THIS.borderRadius,
Math.round(THIS.padding * Math.PI)); // px
var padCursor = 'crosshair';
// wrap
p.wrap.style.clear = 'both';
p.wrap.style.width = (dims[0] + 2 * THIS.borderWidth) + 'px';
p.wrap.style.height = (dims[1] + 2 * THIS.borderWidth) + 'px';
p.wrap.style.zIndex = THIS.zIndex;
// picker
p.box.style.width = dims[0] + 'px';
p.box.style.height = dims[1] + 'px';
p.boxS.style.position = 'absolute';
p.boxS.style.left = '0';
p.boxS.style.top = '0';
p.boxS.style.width = '100%';
p.boxS.style.height = '100%';
jsc.setBorderRadius(p.boxS, borderRadius + 'px');
// picker border
p.boxB.style.position = 'relative';
p.boxB.style.border = THIS.borderWidth + 'px solid';
p.boxB.style.borderColor = THIS.borderColor;
p.boxB.style.background = THIS.backgroundColor;
jsc.setBorderRadius(p.boxB, borderRadius + 'px');
// IE hack:
// If the element is transparent, IE will trigger the event on the elements under it,
// e.g. on Canvas or on elements with border
p.padM.style.background =
p.sldM.style.background =
'#FFF';
jsc.setStyle(p.padM, 'opacity', '0');
jsc.setStyle(p.sldM, 'opacity', '0');
// pad
p.pad.style.position = 'relative';
p.pad.style.width = THIS.width + 'px';
p.pad.style.height = THIS.height + 'px';
// pad palettes (HSV and HVS)
p.padPal.draw(THIS.width, THIS.height, jsc.getPadYComponent(THIS));
// pad border
p.padB.style.position = 'absolute';
p.padB.style.left = THIS.padding + 'px';
p.padB.style.top = THIS.padding + 'px';
p.padB.style.border = THIS.insetWidth + 'px solid';
p.padB.style.borderColor = THIS.insetColor;
// pad mouse area
p.padM._jscInstance = THIS;
p.padM._jscControlName = 'pad';
p.padM.style.position = 'absolute';
p.padM.style.left = '0';
p.padM.style.top = '0';
p.padM.style.width = (THIS.padding + 2 * THIS.insetWidth + THIS.width + padToSliderPadding / 2) + 'px';
p.padM.style.height = dims[1] + 'px';
p.padM.style.cursor = padCursor;
// pad cross
p.cross.style.position = 'absolute';
p.cross.style.left =
p.cross.style.top =
'0';
p.cross.style.width =
p.cross.style.height =
crossOuterSize + 'px';
// pad cross border Y and X
p.crossBY.style.position =
p.crossBX.style.position =
'absolute';
p.crossBY.style.background =
p.crossBX.style.background =
THIS.pointerBorderColor;
p.crossBY.style.width =
p.crossBX.style.height =
(2 * THIS.pointerBorderWidth + THIS.pointerThickness) + 'px';
p.crossBY.style.height =
p.crossBX.style.width =
crossOuterSize + 'px';
p.crossBY.style.left =
p.crossBX.style.top =
(Math.floor(crossOuterSize / 2) - Math.floor(THIS.pointerThickness / 2) - THIS.pointerBorderWidth) + 'px';
p.crossBY.style.top =
p.crossBX.style.left =
'0';
// pad cross line Y and X
p.crossLY.style.position =
p.crossLX.style.position =
'absolute';
p.crossLY.style.background =
p.crossLX.style.background =
THIS.pointerColor;
p.crossLY.style.height =
p.crossLX.style.width =
(crossOuterSize - 2 * THIS.pointerBorderWidth) + 'px';
p.crossLY.style.width =
p.crossLX.style.height =
THIS.pointerThickness + 'px';
p.crossLY.style.left =
p.crossLX.style.top =
(Math.floor(crossOuterSize / 2) - Math.floor(THIS.pointerThickness / 2)) + 'px';
p.crossLY.style.top =
p.crossLX.style.left =
THIS.pointerBorderWidth + 'px';
// slider
p.sld.style.overflow = 'hidden';
p.sld.style.width = THIS.sliderSize + 'px';
p.sld.style.height = THIS.height + 'px';
// slider gradient
p.sldGrad.draw(THIS.sliderSize, THIS.height, '#000', '#000');
// slider border
p.sldB.style.display = displaySlider ? 'block' : 'none';
p.sldB.style.position = 'absolute';
p.sldB.style.right = THIS.padding + 'px';
p.sldB.style.top = THIS.padding + 'px';
p.sldB.style.border = THIS.insetWidth + 'px solid';
p.sldB.style.borderColor = THIS.insetColor;
// slider mouse area
p.sldM._jscInstance = THIS;
p.sldM._jscControlName = 'sld';
p.sldM.style.display = displaySlider ? 'block' : 'none';
p.sldM.style.position = 'absolute';
p.sldM.style.right = '0';
p.sldM.style.top = '0';
p.sldM.style.width = (THIS.sliderSize + padToSliderPadding / 2 + THIS.padding + 2 * THIS.insetWidth) + 'px';
p.sldM.style.height = dims[1] + 'px';
p.sldM.style.cursor = 'default';
// slider pointer inner and outer border
p.sldPtrIB.style.border =
p.sldPtrOB.style.border =
THIS.pointerBorderWidth + 'px solid ' + THIS.pointerBorderColor;
// slider pointer outer border
p.sldPtrOB.style.position = 'absolute';
p.sldPtrOB.style.left = -(2 * THIS.pointerBorderWidth + THIS.pointerThickness) + 'px';
p.sldPtrOB.style.top = '0';
// slider pointer middle border
p.sldPtrMB.style.border = THIS.pointerThickness + 'px solid ' + THIS.pointerColor;
// slider pointer spacer
p.sldPtrS.style.width = THIS.sliderSize + 'px';
p.sldPtrS.style.height = sliderPtrSpace + 'px';
// the Close button
function setBtnBorder () {
var insetColors = THIS.insetColor.split(/\s+/);
var outsetColor = insetColors.length < 2 ? insetColors[0] : insetColors[1] + ' ' + insetColors[0] + ' ' + insetColors[0] + ' ' + insetColors[1];
p.btn.style.borderColor = outsetColor;
}
p.btn.style.display = THIS.closable ? 'block' : 'none';
p.btn.style.position = 'absolute';
p.btn.style.left = THIS.padding + 'px';
p.btn.style.bottom = THIS.padding + 'px';
p.btn.style.padding = '0 15px';
p.btn.style.height = THIS.buttonHeight + 'px';
p.btn.style.border = THIS.insetWidth + 'px solid';
setBtnBorder();
p.btn.style.color = THIS.buttonColor;
p.btn.style.font = '12px sans-serif';
p.btn.style.textAlign = 'center';
try {
p.btn.style.cursor = 'pointer';
} catch(eOldIE) {
p.btn.style.cursor = 'hand';
}
p.btn.onmousedown = function () {
THIS.hide();
};
p.btnT.style.lineHeight = THIS.buttonHeight + 'px';
p.btnT.innerHTML = '';
p.btnT.appendChild(document.createTextNode(THIS.closeText));
// place pointers
redrawPad();
redrawSld();
// If we are changing the owner without first closing the picker,
// make sure to first deal with the old owner
if (jsc.picker.owner && jsc.picker.owner !== THIS) {
jsc.unsetClass(jsc.picker.owner.targetElement, THIS.activeClass);
}
// Set the new picker owner
jsc.picker.owner = THIS;
// The redrawPosition() method needs picker.owner to be set, that's why we call it here,
// after setting the owner
if (jsc.isElementType(container, 'body')) {
jsc.redrawPosition();
} else {
jsc._drawPosition(THIS, 0, 0, 'relative', false);
}
if (p.wrap.parentNode != container) {
container.appendChild(p.wrap);
}
jsc.setClass(THIS.targetElement, THIS.activeClass);
}
function redrawPad () {
// redraw the pad pointer
switch (jsc.getPadYComponent(THIS)) {
case 's': var yComponent = 1; break;
case 'v': var yComponent = 2; break;
}
var x = Math.round((THIS.hsv[0] / 360) * (THIS.width - 1));
var y = Math.round((1 - THIS.hsv[yComponent] / 100) * (THIS.height - 1));
var crossOuterSize = (2 * THIS.pointerBorderWidth + THIS.pointerThickness + 2 * THIS.crossSize);
var ofs = -Math.floor(crossOuterSize / 2);
jsc.picker.cross.style.left = (x + ofs) + 'px';
jsc.picker.cross.style.top = (y + ofs) + 'px';
// redraw the slider
switch (jsc.getSliderComponent(THIS)) {
case 's':
var rgb1 = HSV_RGB(THIS.hsv[0], 100, THIS.hsv[2]);
var rgb2 = HSV_RGB(THIS.hsv[0], 0, THIS.hsv[2]);
var color1 = 'rgb(' +
Math.round(rgb1[0]) + ',' +
Math.round(rgb1[1]) + ',' +
Math.round(rgb1[2]) + ')';
var color2 = 'rgb(' +
Math.round(rgb2[0]) + ',' +
Math.round(rgb2[1]) + ',' +
Math.round(rgb2[2]) + ')';
jsc.picker.sldGrad.draw(THIS.sliderSize, THIS.height, color1, color2);
break;
case 'v':
var rgb = HSV_RGB(THIS.hsv[0], THIS.hsv[1], 100);
var color1 = 'rgb(' +
Math.round(rgb[0]) + ',' +
Math.round(rgb[1]) + ',' +
Math.round(rgb[2]) + ')';
var color2 = '#000';
jsc.picker.sldGrad.draw(THIS.sliderSize, THIS.height, color1, color2);
break;
}
}
function redrawSld () {
var sldComponent = jsc.getSliderComponent(THIS);
if (sldComponent) {
// redraw the slider pointer
switch (sldComponent) {
case 's': var yComponent = 1; break;
case 'v': var yComponent = 2; break;
}
var y = Math.round((1 - THIS.hsv[yComponent] / 100) * (THIS.height - 1));
jsc.picker.sldPtrOB.style.top = (y - (2 * THIS.pointerBorderWidth + THIS.pointerThickness) - Math.floor(sliderPtrSpace / 2)) + 'px';
}
}
function isPickerOwner () {
return jsc.picker && jsc.picker.owner === THIS;
}
function blurValue () {
THIS.importColor();
}
// Find the target element
if (typeof targetElement === 'string') {
var id = targetElement;
var elm = document.getElementById(id);
if (elm) {
this.targetElement = elm;
} else {
jsc.warn('Could not find target element with ID \'' + id + '\'');
}
} else if (targetElement) {
this.targetElement = targetElement;
} else {
jsc.warn('Invalid target element: \'' + targetElement + '\'');
}
if (this.targetElement._jscLinkedInstance) {
jsc.warn('Cannot link jscolor twice to the same element. Skipping.');
return;
}
this.targetElement._jscLinkedInstance = this;
// Find the value element
this.valueElement = jsc.fetchElement(this.valueElement);
// Find the style element
this.styleElement = jsc.fetchElement(this.styleElement);
var THIS = this;
var container =
this.container ?
jsc.fetchElement(this.container) :
document.getElementsByTagName('body')[0];
var sliderPtrSpace = 3; // px
// For BUTTON elements it's important to stop them from sending the form when clicked
// (e.g. in Safari)
if (jsc.isElementType(this.targetElement, 'button')) {
if (this.targetElement.onclick) {
var origCallback = this.targetElement.onclick;
this.targetElement.onclick = function (evt) {
origCallback.call(this, evt);
return false;
};
} else {
this.targetElement.onclick = function () { return false; };
}
}
/*
var elm = this.targetElement;
do {
// If the target element or one of its offsetParents has fixed position,
// then use fixed positioning instead
//
// Note: In Firefox, getComputedStyle returns null in a hidden iframe,
// that's why we need to check if the returned style object is non-empty
var currStyle = jsc.getStyle(elm);
if (currStyle && currStyle.position.toLowerCase() === 'fixed') {
this.fixed = true;
}
if (elm !== this.targetElement) {
// attach onParentScroll so that we can recompute the picker position
// when one of the offsetParents is scrolled
if (!elm._jscEventsAttached) {
jsc.attachEvent(elm, 'scroll', jsc.onParentScroll);
elm._jscEventsAttached = true;
}
}
} while ((elm = elm.offsetParent) && !jsc.isElementType(elm, 'body'));
*/
// valueElement
if (this.valueElement) {
if (jsc.isElementType(this.valueElement, 'input')) {
var updateField = function () {
THIS.fromString(THIS.valueElement.value, jsc.leaveValue);
jsc.dispatchFineChange(THIS);
};
jsc.attachEvent(this.valueElement, 'keyup', updateField);
jsc.attachEvent(this.valueElement, 'input', updateField);
jsc.attachEvent(this.valueElement, 'blur', blurValue);
this.valueElement.setAttribute('autocomplete', 'off');
}
}
// styleElement
if (this.styleElement) {
this.styleElement._jscOrigStyle = {
backgroundImage : this.styleElement.style.backgroundImage,
backgroundColor : this.styleElement.style.backgroundColor,
color : this.styleElement.style.color
};
}
if (this.value) {
// Try to set the color from the .value option and if unsuccessful,
// export the current color
this.fromString(this.value) || this.exportColor();
} else {
this.importColor();
}
}
};
//================================
// Public properties and methods
//================================
// By default, search for all elements with class="jscolor" and install a color picker on them.
//
// You can change what class name will be looked for by setting the property jscolor.lookupClass
// anywhere in your HTML document. To completely disable the automatic lookup, set it to null.
//
jsc.jscolor.lookupClass = 'jscolor';
jsc.jscolor.installByClassName = function (className) {
var inputElms = document.getElementsByTagName('input');
var buttonElms = document.getElementsByTagName('button');
jsc.tryInstallOnElements(inputElms, className);
jsc.tryInstallOnElements(buttonElms, className);
};
jsc.register();
return jsc.jscolor;
})(); }