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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Directory : /home/rainic/www/oldTZh/wp-content/plugins/powerpack-elements/assets/js/

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Current File : /home/rainic/www/oldTZh/wp-content/plugins/powerpack-elements/assets/js/frontend-timeline.js

(function($) {

	PPTimeline = function( settings, $scope ) {
		this.node         = $scope;
		this.timeline     = this.node.find('.pp-timeline');
		this.items        = this.node.find('.pp-timeline-vertical .pp-timeline-item');
		this.connector    = this.node.find('.pp-timeline-vertical .pp-timeline-connector');
		this.progressBar  = this.node.find('.pp-timeline-vertical .pp-timeline-connector-inner');
		this.markerClass  = this.node.find('.pp-timeline-vertical .pp-timeline-marker-wrapper');

		if ( 'undefined' !== typeof settings.window ) {
			this.window	= settings.window;
		}

		this.init();
	};

	PPTimeline.prototype = {
		node: '',
		items: '',
		connector: '',
		progressBar: '',
		window: $(window),
		winHeight: 0,
		scrollTop: 0,
		lastWinHeight: -1,
		lastScrollTop: -1,
		isScrolling: false,
		isResizing: false,
		isAnimating: false,
		animationClass: 'bounce-in',

		init: function()
		{
            var timeline_layout = this.timeline.data('timeline-layout');

            if ( timeline_layout == 'vertical' ) {
                this.winHeight	= $(window).height();
                this.scrollTop	= this.window.scrollTop();

                this.bindEvents();
                this.requestAnimation();
                this.revealItems();
            }
		},

		bindEvents: function()
		{
			this.window.on( 'scroll', $.proxy( function() {
				this.scrollTop = this.window.scrollTop();
				
				this.requestAnimation();
				this.revealItems();
			}, this ) );

			$(window).on( 'resize', $.proxy( function() {
				this.scrollTop 	= this.window.scrollTop();
				this.winHeight	= $(window).height();
	
				this.requestAnimation();
			}, this ) );
		},

		requestAnimation: function()
		{
			if ( ! this.isAnimating ) {
				var frameId = requestAnimationFrame( this.reboot.bind(this) );
			}

			this.isAnimating = true;
		},

		revealItems: function()
		{
			var self = this;

			this.items.each( function() {
				if ( ( $(this).offset().top <= ( self.window.scrollTop() + $(window).outerHeight() * 0.95 ) ) && $(this).hasClass('pp-timeline-item-hidden') ) {
					$(this).removeClass('pp-timeline-item-hidden').addClass( self.animationClass );
				}
			} );
		},

		setup: function()
		{
			var self = this,
				lastMarkerHeight = this.items.last().find( this.markerClass ).outerHeight();

			this.connector.css({
				'top': self.items.first().find( self.markerClass ).offset().top - self.items.first().offset().top,
				'bottom': ( self.node.offset().top + self.node.outerHeight() ) - self.items.last().find( self.markerClass ).offset().top - ( lastMarkerHeight / 2 )
			});
		},

		reboot: function()
		{
			this.isAnimating = false;

			if ( this.winHeight !== this.lastWinHeight ) {
				this.setup();
			}

			this.start.bind( this )();
		},

		start: function()
		{
			if ( this.scrollTop !== this.lastScrollTop || this.winHeight !== this.lastWinHeight ) {
				this.lastScrollTop = this.scrollTop;
				this.lastWinHeight = this.winHeight;

				this.progress();
			}
		},

		progress: function()
		{
			var self = this,
				win	= $(window);

			this.items.each( function() {
				if ( $(this).find( self.markerClass ).offset().top < ( self.window.scrollTop() + win.outerHeight() / 2 ) ) {
					$(this).addClass('pp-timeline-item-active');
				} else {
					$(this).removeClass('pp-timeline-item-active');
				}
			} );

			var lastMarkerPos = this.items.last().find( this.markerClass ).offset().top,
				lastMarkerHeight = this.items.last().find( this.markerClass ).outerHeight(),
				progressPos	= ( this.window.scrollTop() - this.progressBar.offset().top ) + ( win.outerHeight() / 2 );

			if ( lastMarkerPos <= ( this.window.scrollTop() + win.outerHeight() / 2 ) ) {
				progressPos = lastMarkerPos - this.progressBar.offset().top;
			}
			
			progressPos = progressPos + ( lastMarkerHeight / 2 );

			this.progressBar.css( 'height', progressPos + 'px' );
		}
	};

})(jQuery);

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