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| /* | |
| * Scrolline.js - Create an indication bar line of scroll position | |
| * Basic usage : $.scrolline(); | |
| * --- | |
| * Version: 1.0 | |
| * Copyright 2014, Anthony Ly (http://anthonyly.com) | |
| * Released under the MIT Licence | |
| */ | |
| (function($, window, document, undefined) { | |
| $.extend({ | |
| scrolline: function (options) { | |
| var defaults = { | |
| backColor : '#ecf0f1', | |
| direction : 'horizontal', | |
| frontColor : '#2ecc71', | |
| opacity : 1, | |
| position : 'top', | |
| reverse : false, | |
| weight : 5, | |
| zindex : 10, | |
| scrollEnd : function() {} | |
| }; | |
| function Plugin(options) { | |
| this.params = $.extend(defaults, options); | |
| this.$back = $(document.createElement('div')); | |
| this.$front = $(document.createElement('div')); | |
| this.init(); | |
| } | |
| Plugin.prototype = { | |
| init : function() { | |
| var self = this, | |
| tBack, rBack, bBack, lBack, bgBack, | |
| tFront, rFront, bFront, lFront, bgFront; | |
| // Direction and position | |
| if(self.params.direction != 'vertical') self.params.direction = 'horizontal'; | |
| if(self.params.direction == 'vertical' && self.params.position != 'right') self.params.position = 'left'; | |
| if(self.params.direction == 'horizontal' && self.params.position != 'bottom') self.params.position = 'top'; | |
| if(self.params.direction == 'vertical') { | |
| bBack = tBack = 0; | |
| if(self.params.position == 'right') { | |
| rBack = 0; | |
| lBack = 'auto'; | |
| } else { | |
| rBack = 'auto'; | |
| lBack = 0; | |
| } | |
| } else { | |
| rBack = lBack = 0; | |
| if(self.params.position == 'bottom') { | |
| tBack = 'auto'; | |
| bBack = 0; | |
| } else { | |
| tBack = 0; | |
| bBack = 'auto'; | |
| } | |
| } | |
| if(self.params.reverse && self.params.reverse === true) { | |
| if(self.params.direction == 'vertical') { | |
| bFront = rFront = lFront = 0; | |
| tFront = 'auto'; | |
| } else { | |
| bFront = rFront = rFront = 0; | |
| lFront = 'auto'; | |
| } | |
| } else { | |
| tFront = lFront = 0; | |
| bFront = rFront = 'auto'; | |
| } | |
| self.$front.css({ | |
| background : self.params.frontColor, | |
| bottom : bFront, | |
| height : 0, | |
| left : lFront, | |
| margin: 0, | |
| overflow: 'hidden', | |
| padding: 0, | |
| position: 'absolute', | |
| right : rFront, | |
| top: tFront, | |
| width : 0 | |
| }).appendTo(self.$back); | |
| self.$back.css({ | |
| background : self.params.backColor, | |
| bottom: bBack, | |
| height : 0, | |
| left : lBack, | |
| opacity: self.params.opacity, | |
| margin: 0, | |
| overflow: 'hidden', | |
| position: 'fixed', | |
| padding: 0, | |
| right : rBack, | |
| top: tBack, | |
| width : 0, | |
| zIndex : self.params.zindex, | |
| }).appendTo('body'); | |
| $(window).on("load resize scroll orientationchange", function() { | |
| self.scrollListener(); | |
| }); | |
| }, | |
| scrollListener : function() { | |
| var self = this, | |
| hWin = $(window).height(), | |
| wWin = $(window).width(), | |
| hDoc = $(document).height(), | |
| scrollValue = $(window).scrollTop(), | |
| wBack, hBack, wFront, hFront, scrollineVal, wRef; | |
| if(self.params.direction == 'vertical') { | |
| scrollineVal = (scrollValue + hWin) * hWin / hDoc; | |
| wBack = self.params.weight; | |
| hBack = wRef = hWin; | |
| wFront = self.params.weight; | |
| hFront = scrollineVal; | |
| } else { | |
| scrollineVal = (scrollValue + hWin) * wWin / hDoc; | |
| wBack = wRef = wWin; | |
| hBack = self.params.weight; | |
| wFront = scrollineVal; | |
| hFront = self.params.weight; | |
| } | |
| self.$back.css({ | |
| height: hBack, | |
| width: wBack | |
| }); | |
| self.$front.css({ | |
| height: hFront, | |
| width: wFront | |
| }); | |
| if(scrollineVal >= wRef) { | |
| self.params.scrollEnd(); | |
| } | |
| } | |
| }; | |
| new Plugin(options); | |
| } | |
| }); | |
| })(jQuery, window, document); |