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jquery.waiting.js
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jquery.waiting.js
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(function($){
var defaultSettings = {
size: 0,
quantity: 10,
dotSize: 6,
enableReverse: true,
waitMovementIncrementer: 1,
light: false,
fullScreen: false,
speed: 100,
circleCount: 1,
tailPercent: 0.25
};
$.waiting = function(el, options){
var base = $(el).data("waiting");
if(typeof base === 'undefined'){
base = this;
// Access to jQuery and DOM versions of element
base.el = el;
base.$el = $(el);
// Add a reverse reference to the DOM object
base.$el.data("waiting",base);
}
if(typeof options === "string"){
switch(options){
case 'pause':
base.pause();
break;
case 'play':
base.play();
break;
case 'done':
base.done();
break;
}
}
base.init = function(){
base.userSettings = $.extend({},defaultSettings, options);
base.position = {top:0,left:0,height:0,width:0};
base.originalPosition = base.position;
base.intervalID = 0;
base.resizeIntervalID = 0;
base.createWaiting();
};
base.pause = function(){
clearInterval(base.intervalID);
};
base.play = function(){
base.pause();
base.intervalID = setInterval(function(){
base.waitingLoopColorChange();
}, base.userSettings.speed);
};
base.done = function(){
if(typeof base.$mask !== 'undefined'){
base.pause();
base.$mask.remove();
base.$el.removeData("waiting");
}
};
base.createWaiting = function(){
base.done();
if(typeof base.$mask === 'undefined'){
base.$mask = $('<div style="position:absolute;z-index:9000;background-color:#' + (base.userSettings.light ? '9090a6' : '222') + ';filter:alpha(opacity=50);opacity:0.5;"></div>').appendTo('body');
if(base.userSettings.enableReverse){
base.$mask.click(function(){
base.userSettings.waitMovementIncrementer *= -1;
});
}
}
if(typeof base.$wait === 'undefined'){
base.$wait = $('<div class="ringHolder" style="z-index:9001;position:relative;"></div>').appendTo(base.$mask);
}
base.waitSizing();
base.pause();
clearInterval(base.resizeIntervalID);
base.play();
base.resizeIntervalID = setInterval(function(){
base.waitingTargetMoved();
}, 20);
$(window).resize(function(){
base.waitSizing();
});
};
base.waitingTargetMoved = function(){
var hidden = base.$el.is(':hidden');
base.$mask.toggle(!hidden);
if(!hidden){
base.getLeftTopHeightWidth();
if(base.position.top !== base.originalPosition.top || base.position.left !== base.originalPosition.left ||
base.position.height !== base.originalPosition.height || base.position.width !== base.originalPosition.width){
base.waitSizing();
}
}
};
base.getLeftTopHeightWidth = function(){
if(base.userSettings.fullScreen){
base.position.height = $(window).outerHeight();
base.position.width = $(window).outerWidth();
base.position.top = window.pageYOffset;
base.position.left = window.pageXOffset;
} else {
base.position.height = base.$el.outerHeight();
base.position.width = base.$el.outerWidth();
if(base.$el.offset() !== undefined){
var offset = base.$el.offset();
base.position.top = offset.top;
base.position.left = offset.left;
}
}
return base.position;
};
base.waitSizing = function(){
var size = base.userSettings.size;
var dotSize = base.userSettings.dotSize;
base.getLeftTopHeightWidth();
base.resetPosition();
var maskHeight = base.position.height;
var maskWidth = base.position.width;
if(size === 0 || (size > (base.position.height - dotSize) || size > (base.position.width - dotSize))){
var boxSize = base.userSettings.size;
if(base.userSettings.fullScreen){
maskHeight = $('body').outerHeight();
maskWidth = $('body').outerWidth();
boxSize = Math.min(tempHeight, tempWidth) - dotSize;
} else {
boxSize = (base.position.height < base.position.width ? base.position.height : base.position.width) - dotSize;
}
size = boxSize;
}
base.$mask.height(maskHeight).width(maskWidth).offset({top:base.position.top, left:base.position.left});
base.$wait.height(size).width(size).offset({top:(base.position.top + (base.position.height/2 - size/2)), left:(base.position.left+ (base.position.width/2 - size/2))}).html('');
base.drawCircles(size);
};
base.drawCircles = function(size){
if(base.$wait.children().filter('.ring').length === 0){
var dotSize = base.userSettings.dotSize;
var quantity = base.userSettings.quantity;
var circleCount = base.userSettings.circleCount;
base.loopMax = (quantity - 1);
var halfDot = dotSize / 2;
for(var circ = 0; circ < circleCount; circ++){
for(var ndx = 0; ndx < quantity; ndx++){
var cxcy = size / 2;
var angle = ((360 / quantity) * (ndx + 1)) * Math.PI / 180;
var radius = cxcy - ((circ) * (cxcy / circleCount));
var x = (cxcy + radius * Math.cos(angle)) - halfDot;
var y = (cxcy + radius * Math.sin(angle)) - halfDot;
base.$wait.append('<div loopOrder="' + ndx + '" class="ring" style="filter:alpha(opacity=100); opacity:1; left:' + x + 'px; top:' + y + 'px; height:' + dotSize + 'px; width:' + dotSize + 'px; position:absolute; background-color:#777; -moz-border-radius:' + dotSize + 'px; -webkit-border-radius:' + dotSize + 'px; border-radius:' + dotSize + 'px;"></div>');
}
}
}
};
base.waitingLoopColorChange = function(){
base.$wait.children('div').each(function(i,e){
$this = $(this);
var order = 1 * $this.attr('loopOrder');
var incrementer = (base.userSettings.waitMovementIncrementer * 1) > 0 ? 1 : -1;
order += incrementer;
if (order > base.loopMax){
order = 0;
}
if (order < 0) {
order = base.loopMax;
}
$this.attr('loopOrder', order);
var tailPercent = base.userSettings.tailPercent * 1;
if (tailPercent > 1)
tailPercent = 1;
var tail = (base.loopMax * tailPercent);
var tailSections = (tail < 4 ? 1 : (tail / 4));
var upwards = incrementer > 0;
var useLight = base.userSettings.light;
var color = useLight ? '#1e64ae' : '#666';
if (order <= tailSections){
color = (upwards ? (useLight ? '#fafcfe' : '#ddd') : (useLight ? '#3e84ce' : '#888'));
} else if (order <= tailSections * 2){
color = (upwards ? (useLight ? '#bcd4ee' : '#bbb') : (useLight ? '#7dacde' : '#999'));
} else if (order <= tailSections * 3){
color = (upwards ? (useLight ? '#7dacde' : '#999') : (useLight ? '#bcd4ee' : '#bbb'));
} else if (order <= tailSections * 4){
color = (upwards ? (useLight ? '#3e84ce' : '#888') : (useLight ? '#fafcfe' : '#ddd'));
}
$this.css("backgroundColor" ,color);
});
};
base.resetPosition = function(){
base.originalPosition.top = base.position.top;
base.originalPosition.left = base.position.left;
base.originalPosition.height = base.position.height;
base.originalPosition.width = base.position.width;
};
if(typeof options !== "string")
base.init();
};
$.fn.waiting = function(options){
return this.each(function(){
(new $.waiting(this, options));
});
};
})(jQuery);