891 lines
29 KiB
JavaScript
891 lines
29 KiB
JavaScript
// JavaScript Document
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var getDom = function(element) {
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return typeof(element) == 'object' ? element : document.getElementById(element);
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};
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// 窗口大小
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var getWindowSize = function() {
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var windowWidth, windowHeight;
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if (self.innerHeight) { // all except Explorer
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windowWidth = self.innerWidth;
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windowHeight = self.innerHeight;
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} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
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windowWidth = document.documentElement.clientWidth;
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windowHeight = document.documentElement.clientHeight;
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} else if (document.body) { // other Explorers
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windowWidth = window.screen.width;
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windowHeight= window.screen.height;
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}
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var visibleWidth, visibleHeight;
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visibleWidth = document.body.clientWidth;
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visibleHeight = document.body.clientHeight;
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return new Array(windowWidth, windowHeight, visibleWidth, visibleHeight);
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};
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// 获取鼠标位置
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var getXY = function (e){
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var XY;
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if(navigator.userAgent.match(/msie/i)){
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var scrollPos;
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if (typeof window.pageYOffset != 'undefined'){
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scrollPos = [window.pageXOffset, window.pageYOffset];
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}else if(typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat'){
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scrollPos = [document.documentElement.scrollLeft, document.documentElement.scrollTop];
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}else if(typeof document.body != 'undefined'){
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scrollPos =[document.body.scrollLeft, document.body.scrollTop];
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}
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XY =[
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window.event.clientX + scrollPos[0] - document.body.clientLeft,
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window.event.clientY + scrollPos[1] - document.body.clientTop
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];
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}else{
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XY = [e.pageX, e.pageY];
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}
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return XY;
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};
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// 透明度
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opacity = {
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set : function() {
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var args = arguments;
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var o = getDom(args[0]);
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try{
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o.filters.alpha.opacity = args[1];
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}catch(e){
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o.style.opacity = args[1]/100;
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o.style.filter = 'alpha(opacity='+ (args[1]) +')';
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}
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},
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get : function() {
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var o = getDom(arguments[0]), p;
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try{
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p = parseInt(o.filters.alpha.opacity, 10);
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if(isNaN(p)) p=100;
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}catch(e){
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p = o.style.opacity;
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p *= 100;
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}
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return p;
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}
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},
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// 显示隐藏下拉框
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displaySelect = function(status) {
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var selects = document.getElementsByTagName('select');
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var count = selects.length;
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for (var i=0;i<count;i++){
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selects[i].style.visibility = status ? 'visible' : 'hidden';
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}
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},
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// 事件操作
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Event = {
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'add' : function(o, e, h) {
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o = getDom(o);
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if(o.addEventListener){
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o.addEventListener(e, h, false);
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}else if(o.attachEvent){
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o.attachEvent('on'+e, function(){
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return h.call(o, window.event);
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});
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}else{
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var oldHandler = o['on'+e] || function(){};
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o['on'+e] = function(){
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oldHandler();
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h();
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}
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}
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},
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'remove' : function(o, e, h) {
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o = getDom(o);
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if(o.removeEventListener){
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o.removeEventListener(e, h, false);
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}else if(o.detachEvent){
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o.detachEvent('on'+e, h);
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}else{
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o['on'+e] = null;
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}
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},
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'end' : function(e) {
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e = e || window.event;
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e.stopPropagation && (e.preventDefault(), e.stopPropagation()) || (e.cancelBubble = true, e.returnValue = false);
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}
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};
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/*============================================================
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- 主体函数 Picasa
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- Cody By Mudoo 09.02
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============================================================*/
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function Picasa(){}
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Picasa.prototype = {
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author : 'Mudoo',
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version : '1.0 Alpha',
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name : 'MyPicasa', // 实例名
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inited : false, // 是否已完成初始化
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selector : '', // 选择器
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// 功能状态
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hotkey : true, // 快捷按键是否可用
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wheel : true, // 鼠标滚轮是否可用
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slide : true, // 幻灯片播放是否可用
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auto : true, // 自动播放是否可用
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zoomAnimation : true, // 图片缩放动画是否可用
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// 参数
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itemWidth : 36, // 列表项宽度(像素)
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maskOpacity : 50, // 遮罩层透明度
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fadeOutTime : 200, // 隐藏遮罩层动画时间
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itemsOpacity : 60, // 列表项透明度
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perHintOpacity : 40, // 百分比提示框透明度
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fadeInModulus : 5, // 渐显系数
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fadeOutModulus : 8, // 渐隐系数
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moveModulus : 6, // 移动系数
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zoomModulus : 10, // 缩放系数
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zoomSpeed : .8, // 缩放步长
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zoomMin : 5, // 缩放最小百分比
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zoomMax : 5000, // 缩放最大百分比
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defaulePerMax : 85, // 初始图片最大占屏幕百分比
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toQuickInterval : 200, // 切换到快速模式间歇(1秒=1000)
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quickDoInterval : 50, // 快速模式动作间歇(1秒=1000)
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autoInterval : 3000, // 自动播放间歇(1秒=1000)
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actionSpeed : 2, // 动作速度(越小越快，1秒=1000)
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// 计时器
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doFade : null, // 透明
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doZoom : null, // 图片缩放
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doShowItem : null, // 列表显示
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doMove : null, // 列表移动
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doToQuick : null, // 切换到快速模式
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doQuick : null, // 快速模式
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doLoad : null, // 加载图片
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doAuto : null, // 自动播放
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doHidePerHint : null, // 隐藏百分比提示栏
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doFadePerHint : null, // 显示百分比提示栏
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// 变量
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arrItems : [], // 列表数组
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arrCount : -1, // 列表数量
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currentNo : 0, // 当前图片No
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itemDefaultX : 0, // 列表默认位置
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initialCoord : [0, 0], // 图片初始坐标
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moveDistance : [0, 0], // 图片拖拽移动距离
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defaultSizePer : 100, // 默认图片大小百分比
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fullSizePer : 100, // 满屏图片大小百分比
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currentSizePer : 100, // 当前图片大小百分比
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currentZoomSize : [0, 0], // 当前图片大小
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currentZoomCoord: [0, 0], // 当前图片坐标
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isLoaded : false, // 图片是否加载完
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isZooming : false, // 是否正在缩放图片
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isDraging : false, // 是否正在拖拽图片
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isAutoPlaying : false, // 是否正在自动播放
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activeImage : null, // 图片加载容器
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lng : { // 中文
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'zoomin' : 'zoom in',
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'zoomout' : 'zoom out',
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'zoomactual': 'true size',
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'zoomauto' : 'zoom auto',
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'prev' : 'prev',
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'slide' : 'play',
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'next' : 'next',
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'autoplay' : 'auto play',
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'loading' : 'loading...',
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'loaderror' : 'image load error!'
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},
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initData:function(){
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var img, name;
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var self = this;
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self.arrItems = [];
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$(self.selector).each(function(index){
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$(this).attr('PicasaNo', index);
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var thumb = $(this).attr('thumb');
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img = [thumb,$(this).attr('picasa')];
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name = img[1].substr(img[1].lastIndexOf('\/')+1);
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self.arrItems.push(new Array(img,name,[0,0],''));
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});
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this.arrCount = this.arrItems.length;
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if (this.inited) {
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//若初始化，则填充缩略图列表
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this.createItems();
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$('#PV_Control li').click(function(){
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var number = $(this).attr('number');
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self.changeImage(number);
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});
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}
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},
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play:function(e){
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this.display($(e).get(0));
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},
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// 初始化
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init : function(selectorUser) {
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this.selector = selectorUser;
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var self = this;
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if(!this.inited) {
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this.createFrame();
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this.setElementEvent();
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if(this.wheel) this.setWheel();
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this.inited = true;
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}
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},
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// 生成框架
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createFrame : function() {
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// 背景遮罩
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this.mask = document.createElement('div');
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this.mask.id = 'PicasaMask';
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document.body.appendChild(this.mask);
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// 主体框架
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this.frame = document.createElement('div');
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this.frame.id = 'PicasaView';
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this.frame.innerHTML =
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'<div id="PV_Loading"></div>'+
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'<div id="PV_Error" >error</div>'+
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'<a href="#" id="PV_Close" ><span>×</span></a>'+
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'<img id="PV_Picture" src="" />'+
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'<img id="PV_Picture_Temp" src="" />'+
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'<div id="PV_PerHint"></div>'+
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'<div id="PV_Hint"></div>'+
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'<div id="PV_Control">'+
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' <ul id="PV_Items"></ul>'+
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' <div id="PV_Buttons">'+
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' <div id="PV_Zoom"><a href="javascript: void(0);" id="PV_Btn_ZoomActual">1:1</a><a href="javascript: void(0);" id="PV_Btn_ZoomOut">-</a><a href="javascript: void(0);" id="PV_Btn_ZoomIn">+</a></div>'+
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' <div id="PV_Select" class="PV_Btn_Normal"><a href="javascript: void(0);" id="PV_Btn_Prev"></a><a href="javascript: void(0);" id="PV_Btn_Slide"></a><a href="javascript: void(0);" id="PV_Btn_Next"></a></div>'+
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' <div id="PV_AutoPlay"><a href="javascript: void(0);" id="PV_Btn_AutoPlay">自动播放</a></div>'+
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' </div>'+
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'</div>';
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document.body.appendChild(this.frame);
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this.CloseBox = document.getElementById('PV_Close');
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// 框架对象
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this.Picture = getDom('PV_Picture'); // 大图
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this.Loading = getDom('PV_Loading'); // 加载提示图
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this.Error = getDom('PV_Error'); // 错误提示图
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this.fPerHint = getDom('PV_PerHint'); // 缩放百分比提示框
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this.fHint = getDom('PV_Hint'); // 底部提示框
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this.fControl = getDom('PV_Control'); // 控制栏
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this.fItems = getDom('PV_Items'); // 列表项
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this.fButtons = getDom('PV_Buttons'); // 控制按钮
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// 按钮对象
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this.btnZoomIn = getDom('PV_Btn_ZoomIn'); // 放大(+)
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this.btnZoomOut = getDom('PV_Btn_ZoomOut'); // 缩小(-)
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this.btnZoomActual = getDom('PV_Btn_ZoomActual'); // 原始尺寸(1:1)
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this.btnPrev = getDom('PV_Btn_Prev'); // 上一张图片
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this.btnSlide = getDom('PV_Btn_Slide'); // 幻灯片演示
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this.btnNext = getDom('PV_Btn_Next'); // 下一张图片
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this.btnAutoPlay = getDom('PV_Btn_AutoPlay'); // 自动播放
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this.mask.style.display = 'none';
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this.frame.style.display = 'none';
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var self = this;
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this.activeImage = new Image();
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this.activeImage.onload = function() {self.doLoad = setTimeout(function() {self.loadedAction();}, 0)}
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this.activeImage.onerror = function() {self.doLoad = setTimeout(function() {self.loadError();}, 0)}
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// 设置遮罩层透明度
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opacity.set(this.mask, this.maskOpacity);
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},
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// 生成列表项
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createItems : function() {
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var itemStr = '';
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for (var i=0; i<this.arrCount; i++){
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itemStr += '<li number="'+i+'"><img src="'+ this.arrItems[i][0][0] +'" /></li>';
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}
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this.fItems.innerHTML = itemStr;
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this.fItems.style.width = (this.arrCount*36) +'px';
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},
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// 设置框架布局
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setFrameLayout : function() {
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this._setFrame();
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opacity.set(this.fPerHint, 0);
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$(this.mask).fadeIn(this.fadeOutTime);
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},
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setFrameResize:function(){
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var self = this;
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self._setFrame();
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var winSize = getWindowSize();
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var widthPer = Math.round(this.activeImage.width/winSize[2]*100);
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var heightPer = Math.round(this.activeImage.height/winSize[1]*100);
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var sizePer = 100;
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if(widthPer>heightPer && widthPer>=this.defaulePerMax) {
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sizePer = Math.round((winSize[2]*this.defaulePerMax)/this.activeImage.width);
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}else if(widthPer<heightPer && heightPer>=this.defaulePerMax){
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sizePer = Math.round((winSize[1]*this.defaulePerMax)/this.activeImage.height);
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}
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this.defaultSizePer = sizePer;
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this.zoomAction(sizePer, true, false);
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},
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_setFrame:function() {
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//this.mask.style.display = '';
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this.frame.style.display = '';
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var winSize = getWindowSize();
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this.mask.style.width = winSize[2] +'px';
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this.mask.style.height = winSize[1] +'px';
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this.frame.style.width = winSize[2] +'px';
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this.frame.style.height = winSize[1] +'px';
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this.fHint.style.width = winSize[2] +'px';
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this.fHint.style.top = (winSize[1]-this.fControl.offsetHeight-this.fHint.offsetHeight) +'px';
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this.fControl.style.width = winSize[2] +'px';
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this.fControl.style.top = (winSize[1]-this.fControl.offsetHeight) +'px';
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this.fButtons.style.left = ((winSize[2]-this.fButtons.offsetWidth)/2) +'px';
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this.itemDefaultX = Math.round((winSize[2]-this.itemWidth)/2);
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this.fItems.style.left = this.itemDefaultX +'px';
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this.initialCoord = [
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Math.round(winSize[2]/2),
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Math.round((winSize[1]-this.fControl.offsetHeight)/2)
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];
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//重设loading，hit位置。
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this.Loading.style.left = (this.initialCoord[0]-30) +'px';
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this.Loading.style.top = (this.initialCoord[1]-30) +'px';
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this.Error.style.left = (this.initialCoord[0]-Math.round(this.Error.offsetWidth/2)) +'px';
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this.Error.style.top = (this.initialCoord[1]-Math.round(this.Error.offsetHeight/2)) +'px';
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this.fPerHint.style.left = (this.initialCoord[0]-Math.round(this.fPerHint.offsetWidth/2)) +'px';
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this.fPerHint.style.top = (this.initialCoord[1]-Math.round(this.fPerHint.offsetHeight/2)) +'px';
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},
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// 设置事件
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setElementEvent : function() {
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var self = this;
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this.frame.oncontextmenu = function() {return false}
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//this.CloseBox.onclick = function() {self.close()}//点击按钮关闭
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this.frame.onclick = function() {self.close()}//点击蒙版关闭
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this.Picture.onclick = Event.end;
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this.Picture.ondblclick = function() {
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var zoomPer = self.currentSizePer==self.defaultSizePer ? self.fullSizePer : self.defaultSizePer;
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if(self.moveDistance.join(',')!='0,0') {
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zoomPer = self.defaultSizePer;
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self.moveDistance = [0, 0];
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}
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self.zoomAction(zoomPer, true);
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}
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this.dragPicture();
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this.Loading.onclick = Event.end;
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this.Error.onclick = Event.end;
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this.fPerHint.onclick = Event.end;
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this.fControl.onclick = Event.end;
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this.fControl.ondblclick = function() {
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var zoomPer = self.currentSizePer==self.defaultSizePer ? self.fullSizePer : self.defaultSizePer;
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if(self.moveDistance.join(',')!='0,0') {
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zoomPer = self.defaultSizePer;
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self.moveDistance = [0, 0];
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}
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self.zoomAction(zoomPer, true);
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}
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this.fControl.onmouseover = function() {clearInterval(self.doFade); self.doFade = self.fadeAction(1, self.fItems, 100)}
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this.fControl.onmouseout = function() {clearInterval(self.doFade); self.doFade = self.fadeAction(0, self.fItems, self.itemsOpacity)}
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this.btnZoomIn.onmouseover = function() {self.hint(self.lng.zoomin);}
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this.btnZoomIn.onmouseout = function() {self.hint();}
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this.btnZoomIn.onclick = function() {self.zoomAction(1); return false;}
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this.setQuickAction(this.btnZoomIn, 'self.zoomAction(1);');
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this.btnZoomOut.onmouseover = function() {self.hint(self.lng.zoomout);}
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this.btnZoomOut.onmouseout = function() {self.hint();}
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this.btnZoomOut.onclick = function() {self.zoomAction(-1); return false;}
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this.setQuickAction(this.btnZoomOut, 'self.zoomAction(-1);');
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this.btnZoomActual.onmouseover = function() {self.hint(self.currentSizePer==100 ? self.lng.zoomauto : self.lng.zoomactual);}
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this.btnZoomActual.onmouseout = function() {self.hint();}
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this.btnZoomActual.onclick = function() {self.zoomAction(self.currentSizePer==100 ? self.defaultSizePer : 0); return false;}
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this.btnPrev.onmouseover = function() {self.hint(self.lng.prev);getDom('PV_Select').className='PV_Btn_PrevOver';}
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this.btnPrev.onmouseout = function() {self.hint();getDom('PV_Select').className='PV_Btn_Normal';}
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this.btnPrev.onclick = function() {self.changeImage(self.currentNo-1); return false;}
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this.setQuickAction(this.btnPrev, 'self.changeImage(self.currentNo-1);');
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this.btnSlide.onmouseover = function() {self.hint(self.lng.slide);getDom('PV_Select').className='PV_Btn_SildeOver';}
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this.btnSlide.onmouseout = function() {self.hint();getDom('PV_Select').className='PV_Btn_Normal';}
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this.btnSlide.onclick = function() {return false;}
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||
this.btnNext.onmouseover = function() {self.hint(self.lng.next);getDom('PV_Select').className='PV_Btn_NextOver';}
|
||
this.btnNext.onmouseout = function() {self.hint();getDom('PV_Select').className='PV_Btn_Normal';}
|
||
this.btnNext.onclick = function() {self.changeImage(self.currentNo+1); return false;}
|
||
this.setQuickAction(this.btnNext, 'self.changeImage(self.currentNo+1);');
|
||
|
||
this.btnAutoPlay.onmouseover = function() {self.hint(self.lng.autoplay);}
|
||
this.btnAutoPlay.onmouseout = function() {self.hint();}
|
||
this.btnAutoPlay.onclick = function() {self.autoPlayAction(); return false;}
|
||
},
|
||
|
||
// 开始显示
|
||
display : function() {
|
||
var self = this;
|
||
PicasaOpen = self;
|
||
var o = getDom(arguments[0]);
|
||
if(!this.inited) this.initialize();
|
||
|
||
if(this.hotkey) this.setKeyboard(true);
|
||
displaySelect(false);
|
||
|
||
this.setFrameLayout();
|
||
this.currentNo = parseInt(o.getAttribute('PicasaNo'),10);
|
||
if (o.getAttribute('PicasaNo') == null) this.currentNo = 0;
|
||
this.loadImage();
|
||
this.moveAction();
|
||
this.doShowItem = setTimeout(function(){
|
||
self.fadeAction(1, self.fItems, self.itemsOpacity, 0);
|
||
}, 0);
|
||
},
|
||
|
||
// 切换图片
|
||
changeImage : function() {
|
||
if(this.isDraging) return;
|
||
var No = arguments[0];
|
||
if(No<0) No = 0;
|
||
if(No>=this.arrCount) No = this.arrCount-1;
|
||
if(No == this.currentNo) return;
|
||
|
||
clearInterval(this.doZoom);
|
||
clearTimeout(this.doAuto);
|
||
|
||
this.currentNo = No;
|
||
this.moveAction(true);
|
||
this.loadImage();
|
||
},
|
||
|
||
// 加载图片
|
||
loadImage : function() {
|
||
clearTimeout(this.doLoad);
|
||
var self = this;
|
||
this.isLoaded = false;
|
||
//this.Picture.style.display = 'none';
|
||
this.Loading.style.display = '';
|
||
this.Error.style.display = 'none';
|
||
if(this.Loading.offsetLeft==0) {
|
||
this.Loading.style.left = (this.initialCoord[0]-30) +'px';
|
||
this.Loading.style.top = (this.initialCoord[1]-30) +'px';
|
||
}
|
||
this.hintTxt = this.lng.loading;
|
||
this.hint();
|
||
this.activeImage.src = this.arrItems[this.currentNo][0][1];
|
||
this.Picture.src = this.activeImage.src;
|
||
$('#PV_Picture').css('display','none').fadeIn();
|
||
},
|
||
loadedAction : function() {
|
||
this.isLoaded = true;
|
||
var winSize = getWindowSize();
|
||
var widthPer = Math.round(this.activeImage.width/winSize[2]*100);
|
||
var heightPer = Math.round(this.activeImage.height/winSize[1]*100);
|
||
var sizePer = 100;
|
||
if(widthPer>heightPer && widthPer>=this.defaulePerMax) {
|
||
sizePer = Math.round((winSize[2]*this.defaulePerMax)/this.activeImage.width);
|
||
}else if(widthPer<heightPer && heightPer>=this.defaulePerMax){
|
||
sizePer = Math.round((winSize[1]*this.defaulePerMax)/this.activeImage.height);
|
||
}
|
||
this.defaultSizePer = sizePer;
|
||
this.fullSizePer = Math.round(winSize[2]/this.activeImage.width*100);
|
||
this.moveDistance = [0, 0];
|
||
|
||
this.arrItems[this.currentNo][2] = [this.activeImage.width, this.activeImage.height];
|
||
//this.Picture.src = this.activeImage.src;
|
||
|
||
this.zoomAction(sizePer, true, false);
|
||
var cItem = this.arrItems[this.currentNo];
|
||
var hintTxt = '';
|
||
if(cItem[3]!='') hintTxt = cItem[3]+' — ';
|
||
hintTxt += cItem[1] +' ('+ (cItem[2][0] +' x '+ cItem[2][1]) +')';
|
||
this.hintTxt = '<strong>'+ hintTxt +'</strong>';
|
||
this.hint();
|
||
|
||
this.Picture.style.display = '';
|
||
this.Loading.style.display = 'none';
|
||
this.Error.style.display = 'none';
|
||
if(this.isAutoPlaying) this.autoPlay();
|
||
},
|
||
loadError : function() {
|
||
if (!PicasaOpen) return;//动画方式退出。
|
||
this.Picture.style.display = 'none';
|
||
this.Loading.style.display = 'none';
|
||
this.Error.style.display = '';
|
||
this.Error.style.left = (this.initialCoord[0]-30) +'px';
|
||
this.Error.style.top = (this.initialCoord[1]-30) +'px';
|
||
|
||
this.hintTxt = this.lng.loaderror;
|
||
this.hint();
|
||
if(this.isAutoPlaying) this.autoPlay();
|
||
},
|
||
|
||
// 自动播放
|
||
autoPlayAction : function() {
|
||
if(!this.auto) return;
|
||
if(this.isAutoPlaying) {
|
||
clearTimeout(this.doAuto);
|
||
this.isAutoPlaying = false;
|
||
}else{
|
||
this.autoPlay();
|
||
this.isAutoPlaying = true;
|
||
}
|
||
|
||
this.setButton(this.btnAutoPlay, this.isAutoPlaying);
|
||
},
|
||
autoPlay : function() {
|
||
var self = this;
|
||
var No = this.currentNo>=this.arrCount-1 ? 0 : this.currentNo+1;
|
||
this.doAuto = setTimeout(function() {
|
||
self.changeImage(No);
|
||
}, this.autoInterval);
|
||
},
|
||
|
||
// 拖拽图片
|
||
dragPicture : function() {
|
||
var self = this;
|
||
var currentCoord = [];
|
||
var currentXY = [];
|
||
|
||
function dragMove(e) {
|
||
if(self.isZooming) return false;
|
||
if(!self.isDraging) {
|
||
self.fControl.style.display = 'none';
|
||
self.fHint.style.display = 'none';
|
||
self.isDraging = true;
|
||
}
|
||
var mouseXY = getXY(e);
|
||
self.Picture.style.left = (currentCoord[0]+mouseXY[0]-currentXY[0]) +'px';
|
||
self.Picture.style.top = (currentCoord[1]+mouseXY[1]-currentXY[1]) +'px';
|
||
return false;
|
||
}
|
||
function initDrag(e) {
|
||
currentCoord = [self.Picture.offsetLeft, self.Picture.offsetTop];
|
||
currentXY = getXY(e);
|
||
|
||
document.onmousemove = dragMove;
|
||
document.onmouseup = stopDrag;
|
||
return false;
|
||
}
|
||
function stopDrag() {
|
||
document.onmousemove = null;
|
||
document.onmouseup = null;
|
||
|
||
self.moveDistance = [Math.round((self.currentZoomCoord[0]-self.Picture.offsetLeft)/self.currentSizePer*100), Math.round((self.currentZoomCoord[1]-self.Picture.offsetTop)/self.currentSizePer*100)];
|
||
self.fControl.style.display = '';
|
||
self.fHint.style.display = '';
|
||
self.isDraging = false;
|
||
}
|
||
this.Picture.onmousedown = initDrag;
|
||
},
|
||
|
||
// 图片缩放
|
||
zoomAction : function() {
|
||
if(!this.isLoaded || this.isDraging) return;
|
||
clearInterval(this.doZoom);
|
||
switch(arguments[0]) {
|
||
case -1 :
|
||
this.currentSizePer *= this.zoomSpeed;
|
||
break;
|
||
case 0 :
|
||
this.currentSizePer = 100;
|
||
break;
|
||
case 1 :
|
||
this.currentSizePer /= this.zoomSpeed;
|
||
break;
|
||
case 2 :
|
||
this.currentSizePer = 0;
|
||
break;
|
||
default :
|
||
this.currentSizePer = arguments[0];
|
||
break;
|
||
}
|
||
if(!arguments[1]) {
|
||
if(this.currentSizePer<this.zoomMin) this.currentSizePer=this.zoomMin;
|
||
if(this.currentSizePer>this.zoomMax) this.currentSizePer=this.zoomMax;
|
||
this.currentSizePer = Math.round(this.currentSizePer);
|
||
}
|
||
|
||
this.setButton(this.btnZoomActual, (this.currentSizePer==100));
|
||
|
||
var size = this.arrItems[this.currentNo][2];
|
||
this.currentZoomSize = [Math.round(size[0]*this.currentSizePer/100), Math.round(size[1]*this.currentSizePer/100)];
|
||
this.currentZoomCoord = [Math.round(this.initialCoord[0]-this.currentZoomSize[0]/2), Math.round(this.initialCoord[1]-this.currentZoomSize[1]/2)];
|
||
|
||
var moveDistance = [Math.round(this.moveDistance[0]*this.currentSizePer/100), Math.round(this.moveDistance[1]*this.currentSizePer/100)];
|
||
var zoomSize = this.currentZoomSize;
|
||
var zoomCoord = [this.currentZoomCoord[0]-moveDistance[0], this.currentZoomCoord[1]-moveDistance[1]]
|
||
var animation = arguments[2]==undefined ? this.zoomAnimation : arguments[2];
|
||
|
||
if(animation) {
|
||
var self = this;
|
||
var is_close = arguments[3];//arguments[3]退出时回调,退出缩放动画
|
||
this.doZoom = setInterval(function() {
|
||
self.zoomLoop(zoomSize, zoomCoord,is_close);
|
||
}, this.actionSpeed);
|
||
this.isZooming = true;
|
||
}else{
|
||
this.Picture.width = zoomSize[0];
|
||
this.Picture.height = zoomSize[1];
|
||
this.Picture.style.left = zoomCoord[0] +'px';
|
||
this.Picture.style.top = zoomCoord[1] +'px';
|
||
this.perHint(this.currentSizePer);
|
||
}
|
||
},
|
||
zoomLoop : function() {
|
||
var zoomSize = arguments[0];
|
||
var zoomCoord = arguments[1];
|
||
var sizeSpeed = [Math.round((zoomSize[0]-this.Picture.width)/this.zoomModulus*10)/10, Math.round((zoomSize[1]-this.Picture.height)/this.zoomModulus*10)/10]
|
||
var coordSpeed = [Math.round((zoomCoord[0]-this.Picture.offsetLeft)/this.zoomModulus*10)/10, Math.round((zoomCoord[1]-this.Picture.offsetTop)/this.zoomModulus*10)/10]
|
||
|
||
if((sizeSpeed.join(',')!='0,0') || coordSpeed.join(',')!='0,0') {
|
||
this.Picture.width += (sizeSpeed[0]>0 ? Math.ceil(sizeSpeed[0]) : Math.floor(sizeSpeed[0]));
|
||
this.Picture.height += (sizeSpeed[1]>0 ? Math.ceil(sizeSpeed[1]) : Math.floor(sizeSpeed[1]));
|
||
this.Picture.style.left = (this.Picture.offsetLeft+(coordSpeed[0]>0 ? Math.ceil(coordSpeed[0]) : Math.floor(coordSpeed[0]))) +'px';
|
||
this.Picture.style.top = (this.Picture.offsetTop+(coordSpeed[1]>0 ? Math.ceil(coordSpeed[1]) : Math.floor(coordSpeed[1]))) +'px';
|
||
|
||
this.perHint(Math.round(this.Picture.width/this.arrItems[this.currentNo][2][0]*100));
|
||
}else{
|
||
clearInterval(this.doZoom);
|
||
this.isZooming = false;
|
||
if (arguments[2]!=undefined) {
|
||
this.stopAll();
|
||
}
|
||
}
|
||
},
|
||
|
||
// 列表移动
|
||
moveAction : function() {
|
||
clearInterval(this.doMove);
|
||
var self = this;
|
||
var moveX = this.itemDefaultX-this.currentNo*this.itemWidth;
|
||
if(arguments[0]) {
|
||
this.doMove = setInterval(function(){
|
||
self.moveLoop(moveX);
|
||
}, this.actionSpeed);
|
||
}else{
|
||
this.fItems.style.left = moveX +'px';
|
||
}
|
||
},
|
||
moveLoop : function() {
|
||
var moveX = arguments[0];
|
||
var currX = this.fItems.offsetLeft;
|
||
var speed = Math.round((moveX-currX)/this.moveModulus*10)/10;
|
||
if(speed!=0) {
|
||
speed = speed>0 ? Math.ceil(speed) : Math.floor(speed);
|
||
this.fItems.style.left = (currX+speed) +'px';
|
||
}else{
|
||
this.fItems.style.left = moveX +'px';
|
||
clearInterval(this.doMove);
|
||
}
|
||
},
|
||
|
||
// 渐变
|
||
fadeAction : function() {
|
||
var args = arguments;
|
||
if(args[3]) opacity.set(args[1], args[3]);
|
||
|
||
var self = this;
|
||
var modulus = args[0]==1 ? this.fadeInModulus : this.fadeOutModulus;
|
||
var intervalID = setInterval(function(){
|
||
self.fadeLoop(args[1], args[2], modulus, intervalID)
|
||
}, this.actionSpeed);
|
||
return intervalID;
|
||
},
|
||
fadeLoop : function() {
|
||
var args = arguments;
|
||
var o = getDom(args[0]);
|
||
var currOpacity = opacity.get(o);
|
||
var modulus = parseInt(args[2], 10) || 5;
|
||
var speed = Math.round((args[1]-currOpacity)/modulus*10)/10;
|
||
|
||
if(speed!=0) {
|
||
speed = speed>0 ? Math.ceil(speed) : Math.floor(speed);
|
||
currOpacity += speed;
|
||
opacity.set(o, currOpacity);
|
||
}else{
|
||
clearInterval(args[3]);
|
||
}
|
||
},
|
||
|
||
// 信息提示
|
||
hint : function() {
|
||
var msg='';
|
||
if(arguments[0]) {
|
||
msg = arguments[0];
|
||
}else{
|
||
msg = this.hintTxt;
|
||
}
|
||
this.fHint.innerHTML = msg;
|
||
},
|
||
|
||
// 缩放百分比提示
|
||
perHint : function() {
|
||
this.fPerHint.innerHTML = arguments[0] +'%';
|
||
var self = this;
|
||
clearInterval(this.doFadePerHint);
|
||
this.doFadePerHint = this.fadeAction(1, self.fPerHint, this.perHintOpacity);
|
||
clearTimeout(this.doHidePerHint);
|
||
this.doHidePerHint = setTimeout(function(){
|
||
self.doFadePerHint = self.fadeAction(0, self.fPerHint, 0);
|
||
}, 1000);
|
||
},
|
||
|
||
// 快速模式
|
||
setQuickAction : function() {
|
||
var args = arguments;
|
||
var self = this;
|
||
args[0].onmousedown = function() {
|
||
self.doToQuick = setTimeout(function(){
|
||
self.doQuick = setInterval(function() {
|
||
eval(args[1]);
|
||
}, self.quickDoInterval);
|
||
}, self.toQuickInterval);
|
||
}
|
||
args[0].onmouseup = function() {
|
||
clearTimeout(self.doToQuick);
|
||
clearInterval(self.doQuick);
|
||
}
|
||
Event.add(args[0], 'mouseout', function() {
|
||
clearTimeout(self.doToQuick);
|
||
clearInterval(self.doQuick);
|
||
});
|
||
},
|
||
|
||
// 快捷键操作
|
||
setKeyboard : function(b) {
|
||
var self = this;
|
||
if(b) {
|
||
document.onkeydown = function(e) {self.keyboardAction(e);}
|
||
}else{
|
||
document.onkeydown = null;
|
||
}
|
||
},
|
||
keyboardAction : function(e) {
|
||
e = e || window.event;
|
||
var key = e.keyCode;
|
||
var isHotKey = false;
|
||
|
||
if(key==27) {
|
||
this.close();
|
||
isHotKey = true;
|
||
}else if(key==37) {
|
||
this.changeImage(this.currentNo-1);
|
||
isHotKey = true;
|
||
}else if(key==39) {
|
||
this.changeImage(this.currentNo+1);
|
||
isHotKey = true;
|
||
}else if(key==38 || key==187 || key==107) {
|
||
this.zoomAction(1);
|
||
isHotKey = true;
|
||
}else if(key==40 || key==189 || key==109) {
|
||
this.zoomAction(-1);
|
||
isHotKey = true;
|
||
}else if(key==111 || key==191 || key==220) {
|
||
this.zoomAction(100);
|
||
isHotKey = true;
|
||
}else if(key==106) {
|
||
this.zoomAction(this.defaultSizePer);
|
||
isHotKey = true;
|
||
}
|
||
if(isHotKey) Event.end(e);
|
||
},
|
||
|
||
// 滚轮操作
|
||
setWheel : function(b) {
|
||
var self = this;
|
||
if (window.addEventListener) {
|
||
this.frame.addEventListener('DOMMouseScroll', function(e) {self.frameWheelAction(e);}, false);
|
||
this.fControl.addEventListener('DOMMouseScroll', function(e) {self.itemWheelAction(e);}, false);
|
||
}
|
||
this.frame.onmousewheel = function() {self.frameWheelAction();};
|
||
this.fControl.onmousewheel = function() {self.itemWheelAction();};
|
||
},
|
||
getWheel : function(e) {
|
||
e = e || window.event;
|
||
|
||
var delta = 0;
|
||
if (e.wheelDelta) {
|
||
delta = e.wheelDelta/120;
|
||
//if (window.opera) delta = -delta;
|
||
} else if (e.detail) {
|
||
delta = -e.detail/3;
|
||
}
|
||
|
||
delta = delta>0 ? 1 : -1;
|
||
return delta;
|
||
},
|
||
frameWheelAction : function(e) {
|
||
this.zoomAction(this.getWheel(e));
|
||
Event.end(e);
|
||
},
|
||
itemWheelAction : function(e) {
|
||
this.changeImage((this.currentNo-this.getWheel(e)));
|
||
Event.end(e);
|
||
},
|
||
|
||
// 设置按钮
|
||
setButton : function() {
|
||
var args = arguments;
|
||
args[0].className = args[1] ? 'seled' : '';
|
||
},
|
||
|
||
// 停止所有动作
|
||
stopAll : function() {
|
||
clearTimeout(this.doShowItem);
|
||
clearTimeout(this.doAuto);
|
||
clearTimeout(this.doToQuick);
|
||
clearInterval(this.doQuick);
|
||
clearTimeout(this.doLoad);
|
||
clearInterval(this.doZoom);
|
||
clearInterval(this.doMove);
|
||
clearInterval(this.doFade);
|
||
clearTimeout(this.doHidePerHint);
|
||
clearInterval(this.doFadePerHint);
|
||
|
||
if(this.isAutoPlaying) this.autoPlayAction();
|
||
this.setKeyboard(false);
|
||
displaySelect(true);
|
||
$(this.mask).fadeOut(this.fadeOutTime);
|
||
$(this.frame).fadeOut(this.fadeOutTime);
|
||
this.activeImage.src = '';
|
||
},
|
||
|
||
// 结束关闭
|
||
close : function() {
|
||
PicasaOpen = false;
|
||
if (this.Error.style.display==''
|
||
|| this.hintTxt == 'loading...') {
|
||
this.stopAll();
|
||
}else{
|
||
this.zoomAction(2,true,true,true);
|
||
}
|
||
},
|
||
|
||
// 销毁
|
||
destruction : function() {
|
||
this.stopAll();
|
||
this.mask = null;// 框架对象
|
||
this.frame = null;
|
||
this.Picture = null;
|
||
this.Loading = null;
|
||
this.Error = null;
|
||
this.fPerHint = null;
|
||
this.fHint = null;
|
||
this.fControl = null;
|
||
this.fItems = null;
|
||
this.fButtons = null;
|
||
|
||
// 按钮对象
|
||
this.btnZoomIn = null;
|
||
this.btnZoomOut = null;
|
||
this.btnZoomActual = null;
|
||
this.btnPrev = null;
|
||
this.btnSlide = null;
|
||
this.btnNext = null;
|
||
this.btnAutoPlay = null;
|
||
|
||
this.activeImage = null;
|
||
window[this.name] = null;
|
||
//try{window.CollectGarbage();}catch(e){};
|
||
}
|
||
} |