Commit 981bd126 authored by Dries's avatar Dries
Browse files

- Patch #623292 by manfer, mfer: updated Farbtastic.

parent 14f30458
// $Id$
// Farbtastic 1.2
(function($) {
$.farbtastic = function (callback) {
$.farbtastic(this, callback);
return this;
};
$.farbtastic = function (container, callback) {
var container = $(container).get(0);
return container.farbtastic || (container.farbtastic = new $._farbtastic(container, callback));
};
$._farbtastic = function (container, callback) {
// Store farbtastic object
var fb = this;
// Insert markup
$(container).html('<div class="farbtastic"><div class="color"></div><div class="wheel"></div><div class="overlay"></div><div class="h-marker marker"></div><div class="sl-marker marker"></div></div>');
var e = $('.farbtastic', container);
fb.wheel = $('.wheel', container).get(0);
// Dimensions
fb.radius = 84;
fb.square = 100;
fb.width = 194;
// Fix background PNGs in IE6
if (navigator.appVersion.match(/MSIE [0-6]\./)) {
$('*', e).each(function () {
if (this.currentStyle.backgroundImage != 'none') {
var image = this.currentStyle.backgroundImage;
image = this.currentStyle.backgroundImage.substring(5, image.length - 2);
$(this).css({
'backgroundImage': 'none',
'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='" + image + "')"
});
}
});
}
/**
* Link to the given element(s) or callback.
*/
fb.linkTo = function (callback) {
// Unbind previous nodes
if (typeof fb.callback == 'object') {
$(fb.callback).unbind('keyup', fb.updateValue);
}
// Reset color
fb.color = null;
// Bind callback or elements
if (typeof callback == 'function') {
fb.callback = callback;
}
else if (typeof callback == 'object' || typeof callback == 'string') {
fb.callback = $(callback);
fb.callback.bind('keyup', fb.updateValue);
if (fb.callback.get(0).value) {
fb.setColor(fb.callback.get(0).value);
}
}
return this;
};
fb.updateValue = function (event) {
if (this.value && this.value != fb.color) {
fb.setColor(this.value);
}
};
/**
* Change color with HTML syntax #123456
*/
fb.setColor = function (color) {
var unpack = fb.unpack(color);
if (fb.color != color && unpack) {
fb.color = color;
fb.rgb = unpack;
fb.hsl = fb.RGBToHSL(fb.rgb);
fb.updateDisplay();
}
return this;
};
/**
* Change color with HSL triplet [0..1, 0..1, 0..1]
*/
fb.setHSL = function (hsl) {
fb.hsl = hsl;
fb.rgb = fb.HSLToRGB(hsl);
fb.color = fb.pack(fb.rgb);
fb.updateDisplay();
return this;
};
/////////////////////////////////////////////////////
/**
* Retrieve the coordinates of the given event relative to the center
* of the widget.
*/
fb.widgetCoords = function (event) {
var offset = $(fb.wheel).offset();
return { x: (event.pageX - offset.left) - fb.width / 2, y: (event.pageY - offset.top) - fb.width / 2 };
};
/**
* Mousedown handler
*/
fb.mousedown = function (event) {
// Capture mouse
if (!document.dragging) {
$(document).bind('mousemove', fb.mousemove).bind('mouseup', fb.mouseup);
document.dragging = true;
}
// Check which area is being dragged
var pos = fb.widgetCoords(event);
fb.circleDrag = Math.max(Math.abs(pos.x), Math.abs(pos.y)) * 2 > fb.square;
// Process
fb.mousemove(event);
return false;
};
/**
* Mousemove handler
*/
fb.mousemove = function (event) {
// Get coordinates relative to color picker center
var pos = fb.widgetCoords(event);
// Set new HSL parameters
if (fb.circleDrag) {
var hue = Math.atan2(pos.x, -pos.y) / 6.28;
if (hue < 0) hue += 1;
fb.setHSL([hue, fb.hsl[1], fb.hsl[2]]);
}
else {
var sat = Math.max(0, Math.min(1, -(pos.x / fb.square) + .5));
var lum = Math.max(0, Math.min(1, -(pos.y / fb.square) + .5));
fb.setHSL([fb.hsl[0], sat, lum]);
}
return false;
};
/**
* Mouseup handler
*/
fb.mouseup = function () {
// Uncapture mouse
$(document).unbind('mousemove', fb.mousemove);
$(document).unbind('mouseup', fb.mouseup);
document.dragging = false;
};
/**
* Update the markers and styles
*/
fb.updateDisplay = function () {
// Markers
var angle = fb.hsl[0] * 6.28;
$('.h-marker', e).css({
left: Math.round(Math.sin(angle) * fb.radius + fb.width / 2) + 'px',
top: Math.round(-Math.cos(angle) * fb.radius + fb.width / 2) + 'px'
});
$('.sl-marker', e).css({
left: Math.round(fb.square * (.5 - fb.hsl[1]) + fb.width / 2) + 'px',
top: Math.round(fb.square * (.5 - fb.hsl[2]) + fb.width / 2) + 'px'
});
// Saturation/Luminance gradient
$('.color', e).css('backgroundColor', fb.pack(fb.HSLToRGB([fb.hsl[0], 1, 0.5])));
// Linked elements or callback
if (typeof fb.callback == 'object') {
// Set background/foreground color
$(fb.callback).css({
backgroundColor: fb.color,
color: fb.hsl[2] > 0.5 ? '#000' : '#fff'
});
// Change linked value
$(fb.callback).each(function() {
if (this.value && this.value != fb.color) {
this.value = fb.color;
}
});
}
else if (typeof fb.callback == 'function') {
fb.callback.call(fb, fb.color);
}
};
/* Various color utility functions */
fb.pack = function (rgb) {
var r = Math.round(rgb[0] * 255);
var g = Math.round(rgb[1] * 255);
var b = Math.round(rgb[2] * 255);
return '#' + (r < 16 ? '0' : '') + r.toString(16) +
(g < 16 ? '0' : '') + g.toString(16) +
(b < 16 ? '0' : '') + b.toString(16);
};
fb.unpack = function (color) {
if (color.length == 7) {
return [parseInt('0x' + color.substring(1, 3)) / 255,
parseInt('0x' + color.substring(3, 5)) / 255,
parseInt('0x' + color.substring(5, 7)) / 255];
}
else if (color.length == 4) {
return [parseInt('0x' + color.substring(1, 2)) / 15,
parseInt('0x' + color.substring(2, 3)) / 15,
parseInt('0x' + color.substring(3, 4)) / 15];
}
};
fb.HSLToRGB = function (hsl) {
var m1, m2, r, g, b;
var h = hsl[0], s = hsl[1], l = hsl[2];
m2 = (l <= 0.5) ? l * (s + 1) : l + s - l*s;
m1 = l * 2 - m2;
return [this.hueToRGB(m1, m2, h+0.33333),
this.hueToRGB(m1, m2, h),
this.hueToRGB(m1, m2, h-0.33333)];
};
fb.hueToRGB = function (m1, m2, h) {
h = (h < 0) ? h + 1 : ((h > 1) ? h - 1 : h);
if (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
if (h * 2 < 1) return m2;
if (h * 3 < 2) return m1 + (m2 - m1) * (0.66666 - h) * 6;
return m1;
};
fb.RGBToHSL = function (rgb) {
var min, max, delta, h, s, l;
var r = rgb[0], g = rgb[1], b = rgb[2];
min = Math.min(r, Math.min(g, b));
max = Math.max(r, Math.max(g, b));
delta = max - min;
l = (min + max) / 2;
s = 0;
if (l > 0 && l < 1) {
s = delta / (l < 0.5 ? (2 * l) : (2 - 2 * l));
}
h = 0;
if (delta > 0) {
if (max == r && max != g) h += (g - b) / delta;
if (max == g && max != b) h += (2 + (b - r) / delta);
if (max == b && max != r) h += (4 + (r - g) / delta);
h /= 6;
}
return [h, s, l];
};
// Install mousedown handler (the others are set on the document on-demand)
$('*', e).mousedown(fb.mousedown);
// Init color
fb.setColor('#000000');
// Set linked elements/callback
if (callback) {
fb.linkTo(callback);
}
};
})(jQuery);
(function(e){e.fn.farbtastic=function(f){e.farbtastic(this,f);return this};e.farbtastic=function(f,l){f=e(f).get(0);return f.farbtastic||(f.farbtastic=new e._farbtastic(f,l))};e._farbtastic=function(f,l){var a=this;e(f).html('<div class="farbtastic"><div class="color"></div><div class="wheel"></div><div class="overlay"></div><div class="h-marker marker"></div><div class="sl-marker marker"></div></div>');var k=e(".farbtastic",f);a.wheel=e(".wheel",f).get(0);a.radius=84;a.square=100;a.width=194;navigator.appVersion.match(/MSIE [0-6]\./)&&
e("*",k).each(function(){if(this.currentStyle.backgroundImage!="none"){var b=this.currentStyle.backgroundImage;b=this.currentStyle.backgroundImage.substring(5,b.length-2);e(this).css({backgroundImage:"none",filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='"+b+"')"})}});a.linkTo=function(b){typeof a.callback=="object"&&e(a.callback).unbind("keyup",a.updateValue);a.color=null;if(typeof b=="function")a.callback=b;else if(typeof b=="object"||typeof b=="string"){a.callback=
e(b);a.callback.bind("keyup",a.updateValue);a.callback.get(0).value&&a.setColor(a.callback.get(0).value)}return this};a.updateValue=function(){this.value&&this.value!=a.color&&a.setColor(this.value)};a.setColor=function(b){var c=a.unpack(b);if(a.color!=b&&c){a.color=b;a.rgb=c;a.hsl=a.RGBToHSL(a.rgb);a.updateDisplay()}return this};a.setHSL=function(b){a.hsl=b;a.rgb=a.HSLToRGB(b);a.color=a.pack(a.rgb);a.updateDisplay();return this};a.widgetCoords=function(b){var c=e(a.wheel).offset();return{x:b.pageX-
c.left-a.width/2,y:b.pageY-c.top-a.width/2}};a.mousedown=function(b){if(!document.dragging){e(document).bind("mousemove",a.mousemove).bind("mouseup",a.mouseup);document.dragging=true}var c=a.widgetCoords(b);a.circleDrag=Math.max(Math.abs(c.x),Math.abs(c.y))*2>a.square;a.mousemove(b);return false};a.mousemove=function(b){var c=a.widgetCoords(b);if(a.circleDrag){b=Math.atan2(c.x,-c.y)/6.28;if(b<0)b+=1;a.setHSL([b,a.hsl[1],a.hsl[2]])}else{b=Math.max(0,Math.min(1,-(c.x/a.square)+0.5));c=Math.max(0,Math.min(1,
-(c.y/a.square)+0.5));a.setHSL([a.hsl[0],b,c])}return false};a.mouseup=function(){e(document).unbind("mousemove",a.mousemove);e(document).unbind("mouseup",a.mouseup);document.dragging=false};a.updateDisplay=function(){var b=a.hsl[0]*6.28;e(".h-marker",k).css({left:Math.round(Math.sin(b)*a.radius+a.width/2)+"px",top:Math.round(-Math.cos(b)*a.radius+a.width/2)+"px"});e(".sl-marker",k).css({left:Math.round(a.square*(0.5-a.hsl[1])+a.width/2)+"px",top:Math.round(a.square*(0.5-a.hsl[2])+a.width/2)+"px"});
e(".color",k).css("backgroundColor",a.pack(a.HSLToRGB([a.hsl[0],1,0.5])));if(typeof a.callback=="object"){e(a.callback).css({backgroundColor:a.color,color:a.hsl[2]>0.5?"#000":"#fff"});e(a.callback).each(function(){if(this.value&&this.value!=a.color)this.value=a.color})}else typeof a.callback=="function"&&a.callback.call(a,a.color)};a.pack=function(b){var c=Math.round(b[0]*255),d=Math.round(b[1]*255);b=Math.round(b[2]*255);return"#"+(c<16?"0":"")+c.toString(16)+(d<16?"0":"")+d.toString(16)+(b<16?"0":
"")+b.toString(16)};a.unpack=function(b){if(b.length==7)return[parseInt("0x"+b.substring(1,3))/255,parseInt("0x"+b.substring(3,5))/255,parseInt("0x"+b.substring(5,7))/255];else if(b.length==4)return[parseInt("0x"+b.substring(1,2))/15,parseInt("0x"+b.substring(2,3))/15,parseInt("0x"+b.substring(3,4))/15]};a.HSLToRGB=function(b){var c,d=b[0];c=b[1];b=b[2];c=b<=0.5?b*(c+1):b+c-b*c;b=b*2-c;return[this.hueToRGB(b,c,d+0.33333),this.hueToRGB(b,c,d),this.hueToRGB(b,c,d-0.33333)]};a.hueToRGB=function(b,c,
d){d=d<0?d+1:d>1?d-1:d;if(d*6<1)return b+(c-b)*d*6;if(d*2<1)return c;if(d*3<2)return b+(c-b)*(0.66666-d)*6;return b};a.RGBToHSL=function(b){var c,d,m,g,h=b[0],i=b[1],j=b[2];c=Math.min(h,Math.min(i,j));b=Math.max(h,Math.max(i,j));d=b-c;g=(c+b)/2;m=0;if(g>0&&g<1)m=d/(g<0.5?2*g:2-2*g);c=0;if(d>0){if(b==h&&b!=i)c+=(i-j)/d;if(b==i&&b!=j)c+=2+(j-h)/d;if(b==j&&b!=h)c+=4+(h-i)/d;c/=6}return[c,m,g]};e("*",k).mousedown(a.mousedown);a.setColor("#000000");l&&a.linkTo(l)}})(jQuery);
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