jquery + css 特效 之 一款基于jQuery/CSS3实现拼图效果的相册

<div id="im_wrapper" class="im_wrapper"> <div style="background-position: 0px 0px;"> <img src="images/thumbs/1.jpg" alt="" /></div> <div style="background-position: ⑴25px 0px;"> <img src="images/thumbs/2.jpg" alt="" /></div> <div style="background-position: ⑵50px 0px;"> <img src="images/thumbs/3.jpg" alt="" /></div> <div style="background-position: ⑶75px 0px;"> <img src="images/thumbs/4.jpg" alt="" /></div> <div style="background-position: ⑸00px 0px;"> <img src="images/thumbs/5.jpg" alt="" /></div> <div style="background-position: ⑹25px 0px;"> <img src="images/thumbs/6.jpg" alt="" /></div> <div style="background-position: 0px ⑴25px;"> <img src="images/thumbs/7.jpg" alt="" /></div> <div style="background-position: ⑴25px ⑴25px;"> <img src="images/thumbs/8.jpg" alt="" /></div> <div style="background-position: ⑵50px ⑴25px;"> <img src="images/thumbs/9.jpg" alt="" /></div> <div style="background-position: ⑶75px ⑴25px;"> <img src="images/thumbs/10.jpg" alt="" /></div> <div style="background-position: ⑸00px ⑴25px;"> <img src="images/thumbs/11.jpg" alt="" /></div> <div style="background-position: ⑹25px ⑴25px;"> <img src="images/thumbs/12.jpg" alt="" /></div> <div style="background-position: 0px ⑵50px;"> <img src="images/thumbs/13.jpg" alt="" /></div> <div style="background-position: ⑴25px ⑵50px;"> <img src="images/thumbs/14.jpg" alt="" /></div> <div style="background-position: ⑵50px ⑵50px;"> <img src="images/thumbs/15.jpg" alt="" /></div> <div style="background-position: ⑶75px ⑵50px;"> <img src="images/thumbs/16.jpg" alt="" /></div> <div style="background-position: ⑸00px ⑵50px;"> <img src="images/thumbs/17.jpg" alt="" /></div> <div style="background-position: ⑹25px ⑵50px;"> <img src="images/thumbs/18.jpg" alt="" /></div> <div style="background-position: 0px ⑶75px;"> <img src="images/thumbs/19.jpg" alt="" /></div> <div style="background-position: ⑴25px ⑶75px;"> <img src="images/thumbs/20.jpg" alt="" /></div> <div style="background-position: ⑵50px ⑶75px;"> <img src="images/thumbs/21.jpg" alt="" /></div> <div style="background-position: ⑶75px ⑶75px;"> <img src="images/thumbs/22.jpg" alt="" /></div> <div style="background-position: ⑸00px ⑶75px;"> <img src="images/thumbs/23.jpg" alt="" /></div> <div style="background-position: ⑹25px ⑶75px;"> <img src="images/thumbs/24.jpg" alt="" /></div> </div> <div id="im_loading" class="im_loading"> </div> <div id="im_next" class="im_next"> </div> <div id="im_prev" class="im_prev"> </div> <div> </div>

(function ($, sr) { var debounce = function (func, threshold, execAsap) { var timeout; return function debounced() { var obj = this, args = arguments; function delayed() { if (!execAsap) func.apply(obj, args); timeout = null; }; if (timeout) clearTimeout(timeout); else if (execAsap) func.apply(obj, args); timeout = setTimeout(delayed, threshold || 100); }; } //smartresize jQuery.fn[sr] = function (fn) { return fn ? this.bind('resize', debounce(fn)) : this.trigger(sr); }; })(jQuery, 'smartresize'); </script> <script type="text/javascript"> $(function () { //check if the user made the //mistake to open it with IE var ie = false; if ($.browser.msie) ie = true; //flag to control the click event var flg_click = true; //the wrapper var $im_wrapper = $('#im_wrapper'); //the thumbs var $thumbs = $im_wrapper.children('div'); //all the images var $thumb_imgs = $thumbs.find('img'); //number of images var nmb_thumbs = $thumbs.length; //image loading status var $im_loading = $('#im_loading'); //the next and previous buttons var $im_next = $('#im_next'); var $im_prev = $('#im_prev'); //number of thumbs per line var per_line = 6; //number of thumbs per column var per_col = Math.ceil(nmb_thumbs / per_line) //index of the current thumb var current = ⑴; //mode = grid | single var mode = 'grid'; //an array with the positions of the thumbs //we will use it for the navigation in single mode var positionsArray = []; for (var i = 0; i < nmb_thumbs; ++i) positionsArray[i] = i; //preload all the images $im_loading.show(); var loaded = 0; $thumb_imgs.each(function () { var $this = $(this); $('<img/>').load(function () { ++loaded; if (loaded == nmb_thumbs * 2) start(); }).attr('src', $this.attr('src')); $('<img/>').load(function () { ++loaded; if (loaded == nmb_thumbs * 2) start(); }).attr('src', $this.attr('src').replace('/thumbs', '')); }); //starts the animation function start() { $im_loading.hide(); //disperse the thumbs in a grid disperse(); } //disperses the thumbs in a grid based on windows dimentions function disperse() { if (!flg_click) return; setflag(); mode = 'grid'; //center point for first thumb along the width of the window var spaces_w = $(window).width() / (per_line + 1); //center point for first thumb along the height of the window var spaces_h = $(window).height() / (per_col + 1); //let's disperse the thumbs equally on the page $thumbs.each(function (i) { var $thumb = $(this); //calculate left and top for each thumb, //considering how many we want per line var left = spaces_w * ((i % per_line) + 1) - $thumb.width() / 2; var top = spaces_h * (Math.ceil((i + 1) / per_line)) - $thumb.height() / 2; //lets give a random degree to each thumb var r = Math.floor(Math.random() * 41) - 20; /* now we animate the thumb to its final positions; we also fade in its image, animate it to 115x115, and remove any background image of the thumb - this is not relevant for the first time we call disperse, but when changing from single to grid mode */ if (ie) var param = { 'left': left + 'px', 'top': top + 'px' }; else var param = { 'left': left + 'px', 'top': top + 'px', 'rotate': r + 'deg' }; $thumb.stop() .animate(param, 700, function () { if (i == nmb_thumbs - 1) setflag(); }) .find('img') .fadeIn(700, function () { $thumb.css({ 'background-image': 'none' }); $(this).animate({ 'width': '115px', 'height': '115px', 'marginTop': '5px', 'marginLeft': '5px' }, 150); }); }); } //controls if we can click on the thumbs or not //if theres an animation in progress //we don't want the user to be able to click function setflag() { flg_click = !flg_click } /* when we click on a thumb, we want to merge them and show the full image that was clicked. we need to animate the thumbs positions in order to center the final image in the screen. The image itself is the background image that each thumb will have (different background positions) If we are currently seeing the single image, then we want to disperse the thumbs again, and with this, showing the thumbs images. */ $thumbs.bind('click', function () { if (!flg_click) return; setflag(); var $this = $(this); current = $this.index(); if (mode == 'grid') { mode = 'single'; //the source of the full image var image_src = $this.find('img').attr('src').replace('/thumbs', ''); $thumbs.each(function (i) { var $thumb = $(this); var $image = $thumb.find('img'); //first we animate the thumb image //to fill the thumbs dimentions $image.stop().an

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