发布于 2016-12-05 03:07:41 | 59 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的精品教程，程序狗速度看过来！
Highslide 缩图浏览器的Javascript弹出
Highslide JS 是一个开源的JavaScript软件，提供一个Web2.0方法，弹出窗口。它简化了弹出窗口的缩略图和能在HTML网页上方便使用。
/******************************************************************************
Name: Highslide JS
Version: 3.1.0 (March 1 2007)
Author: Torstein H鴑si
Support: http://vikjavev.no/highslide/forum
Email: See http://vikjavev.no/megsjol
Licence:
Highslide JS is licensed under a Creative Commons Attribution-NonCommercial 2.5
License (http://creativecommons.org/licenses/by-nc/2.5/).
You are free:
* to copy, distribute, display, and perform the work
* to make derivative works
Under the following conditions:
* Attribution. You must attribute the work in the manner specified by the
author or licensor.
* Noncommercial. You may not use this work for commercial purposes.
* For any reuse or distribution, you must make clear to others the license
terms of this work.
* Any of these conditions can be waived if you get permission from the
copyright holder.
Your fair use and other rights are in no way affected by the above.
******************************************************************************/
var hs = {
// Apply your own settings here, or override them in the html file.
graphicsDir : 'highslide/graphics/',
restoreCursor : "zoomout.cur", // necessary for preload
fullExpandIcon : 'fullexpand.gif',
expandSteps : 10, // number of steps in zoom. Each step lasts for duration/step milliseconds.
expandDuration : 250, // milliseconds
restoreSteps : 10,
restoreDuration : 250,
allowMultipleInstances: true,
hideThumbOnExpand : true,
captionSlideSpeed : 1, // set to 0 to disable slide in effect
outlineWhileAnimating : 0, // not recommended, animation gets jaggy on slow systems.
outlineStartOffset : 3, // ends at 10
marginLeft : 10,
marginRight : 35, // leave room for scrollbars + outline
marginTop : 10,
marginBottom : 35, // leave room for scrollbars + outline
zIndexCounter : 1001, // adjust to other absolutely positioned elements
fullExpandTitle : '放大到实际尺寸',
restoreTitle : '单击可关闭图片, 本窗口可拖动。使用←→键察看上一图或下一图片。',
focusTitle : '切换到这幅图片',
loadingText : 'loading...',
loadingTitle : '点击关闭',
loadingOpacity : 0.75,
showCredits : false, // you can set this to false if you want
creditsText : 'Powered by <i>Highslide JS</i>',
creditsHref : 'http://vikjavev.no/highslide/?user=1',
creditsTitle : 'Go to the Highslide JS homepage',
// These settings can also be overridden inline for each image
anchor : 'auto', // where the image expands from
align : 'auto', // position in the client (overrides anchor)
captionId : null,
captionTemplateId : null,
slideshowGroup : null, // defines groups for next/previous links and keystrokes
spaceForCaption : 30, // leaves space below images with captions
minWidth: 200,
minHeight: 200,
allowSizeReduction: true, // allow the image to reduce to fit client size. If false, this overrides minWidth and minHeight
outlineType : 'drop-shadow', // set null to disable outlines
wrapperClassName : null, // for enhanced css-control
enableKeyListener : true,
// END OF YOUR SETTINGS
// declare internal properties
preloadTheseImages : new Array(),
continuePreloading: true,
expandedImagesCounter : 0,
expanders : new Array(),
overrides : new Array(
'anchor',
'align',
'outlineType',
'outlineWhileAnimating',
'spaceForCaption',
'wrapperClassName',
'minWidth',
'minHeight',
'captionId',
'captionTemplateId',
'allowSizeReduction',
'slideshowGroup',
'enableKeyListener'
),
overlays : new Array(),
toggleImagesGroup : null,
pendingOutlines : new Array(),
// drag functionality
ie : (document.all && !window.opera),
safari : navigator.userAgent.indexOf("Safari") != -1,
hasFocused : false,
$ : function (id) {
return document.getElementById(id);
},
push : function (arr, val) {
arr[arr.length] = val;
},
createElement : function (tag, attribs, styles, parent) {
var el = document.createElement(tag);
if (attribs) hs.setAttribs(el, attribs);
if (styles) hs.setStyles(el, styles);
if (parent) parent.appendChild(el);
return el;
},
setAttribs : function (el, attribs) {
for (var x in attribs) {
el[x] = attribs[x];
}
},
setStyles : function (el, styles) {
for (var x in styles) {
try { el.style[x] = styles[x]; }
catch (e) {}
}
},
ieVersion : function () {
arr = navigator.appVersion.split("MSIE");
return parseFloat(arr[1]);
},
clientInfo : function () {
var iebody = (document.compatMode && document.compatMode != "BackCompat")
? document.documentElement : document.body;
this.width = hs.ie ? iebody.clientWidth : self.innerWidth;
this.height = hs.ie ? iebody.clientHeight : self.innerHeight;
this.scrollLeft = hs.ie ? iebody.scrollLeft : pageXOffset;
this.scrollTop = hs.ie ? iebody.scrollTop : pageYOffset;
} ,
position : function(el) {
var parent = el;
var p = Array();
p.x = parent.offsetLeft;
p.y = parent.offsetTop;
while (parent.offsetParent) {
parent = parent.offsetParent;
p.x += parent.offsetLeft;
p.y += parent.offsetTop;
}
return p;
},
expand : function(a, params, contentType) {
try {
new HsExpander(a, params, contentType);
return false;
} catch (e) {
return true;
}
},
focusTopmost : function() {
var topZ = 0;
var topmostKey = -1;
for (i = 0; i < hs.expanders.length; i++) {
if (hs.expanders[i]) {
if (hs.expanders[i].wrapper.style.zIndex && hs.expanders[i].wrapper.style.zIndex > topZ) {
topZ = hs.expanders[i].wrapper.style.zIndex;
topmostKey = i;
}
}
}
if (topmostKey == -1) hs.focusKey = -1;
else hs.expanders[topmostKey].focus();
},
closeId : function(elId) { // for text links
for (i = 0; i < hs.expanders.length; i++) {
if (hs.expanders[i] && (hs.expanders[i].thumb.id == elId || hs.expanders[i].a.id == elId)) {
hs.expanders[i].doClose();
return;
}
}
},
close : function(el) {
var key = hs.getWrapperKey(el);
if (hs.expanders[key]) hs.expanders[key].doClose();
return false;
},
toggleImages : function(closeId, expandEl) {
if (closeId) hs.closeId(closeId);
if (hs.ie) expandEl.href = expandEl.href.replace('about:(blank)?', ''); // mysterious IE thing
hs.toggleImagesExpandEl = expandEl;
return false;
},
getAdjacentAnchor : function(key, op) {
var aAr = document.getElementsByTagName('A');
var hsAr = new Array;
var activeI = -1;
var j = 0;
for (i = 0; i < aAr.length; i++) {
if (hs.isHsAnchor(aAr[i]) && ((hs.expanders[key].slideshowGroup == hs.getParam(aAr[i], 'slideshowGroup')))) {
hsAr[j] = aAr[i];
if (hs.expanders[key] && aAr[i] == hs.expanders[key].a) {
activeI = j;
}
j++;
}
}
return hsAr[activeI + op];
},
getParam : function (a, param) {
try {
var s = a.onclick.toString();
var oneLine = s.replace(/\s/g, ' ');
var sParams = oneLine.replace(/.*?hs.(htmlE|e)xpand\s*?\(\s*?this\s*?,\s*?{(.*?)}.*?$/, '$2');
if (hs.safari) { // stupid bug
for (var i = 0; i < hs.overrides.length; i++) {
sParams = sParams.replace(hs.overrides[i] +':', ','+ hs.overrides[i] +':').replace(/^\s*?,/, '');
}
}
if (oneLine == sParams) return null;
eval('var arr = {'+ sParams +'};');
for (var x in arr) {
if (x == param) return arr[x];
}
} catch (e) {
return null;
}
},
getSrc : function (a) {
var src = hs.getParam(a, 'src');
if (src) return src;
return a.rel.replace(/_slash_/g, '/') || a.href;
},
previousOrNext : function (el, op) {
if (typeof el == 'object') var activeKey = hs.getWrapperKey(el);
else if (typeof el == 'number') var activeKey = el;
if (hs.expanders[activeKey]) {
hs.toggleImagesExpandEl = hs.getAdjacentAnchor(activeKey, op);
hs.expanders[activeKey].doClose();
}
return false;
},
previous : function (el) {
return hs.previousOrNext(el, -1);
},
next : function (el) {
return hs.previousOrNext(el, 1);
},
keyHandler : function(e) {
if (!e) e = window.event;
if (!e.target) e.target = e.srcElement; // ie
if (e.target.form) return; // form element has focus
var op = null;
switch (e.keyCode) {
case 34: // Page Down
case 39: // Arrow right
case 40: // Arrow left
op = 1;
break;
case 33: // Page Up
case 37: // Arrow left
case 38: // Arrow down
op = -1;
break;
case 27: // Escape
case 13: // Enter
if (hs.expanders[hs.focusKey]) hs.expanders[hs.focusKey].doClose();
return false;
}
if (op != null) {
hs.removeEventListener(document, 'keydown', hs.keyHandler);
if (hs.expanders[hs.focusKey] && !hs.expanders[hs.focusKey].enableKeyListener) return true;
return hs.previousOrNext(hs.focusKey, op);
}
else return true;
},
registerOverlay : function (overlay) {
hs.push(hs.overlays, overlay);
},
getWrapperKey : function (el) {
var key = -1;
while (el.parentNode) {
el = el.parentNode;
if (el.id && el.id.match(/^highslide-wrapper-[0-9]+$/)) {
key = el.id.replace(/^highslide-wrapper-([0-9]+)$/, "$1");
break;
}
}
return key;
},
cleanUp : function () {
if (hs.toggleImagesExpandEl) {
hs.toggleImagesExpandEl.onclick();
hs.toggleImagesExpandEl = null;
} else {
for (i = 0; i < hs.expanders.length; i++) {
if (hs.expanders[i] && hs.expanders[i].isExpanded) hs.focusTopmost();
}
}
},
mouseClickHandler : function(e)
{
if (!e) e = window.event;
if (e.button > 1) return true;
if (!e.target) e.target = e.srcElement;
var fobj = e.target;
while (fobj.parentNode
&& !(fobj.className && fobj.className.match(/highslide-(image|move|html)/)))
{
fobj = fobj.parentNode;
}
if (!fobj.parentNode) return;
hs.dragKey = hs.getWrapperKey(fobj);
if (fobj.className.match(/highslide-(image|move)/)) {
var isDraggable = true;
var wLeft = parseInt(hs.expanders[hs.dragKey].wrapper.style.left);
var wTop = parseInt(hs.expanders[hs.dragKey].wrapper.style.top);
}
if (e.type == 'mousedown') {
if (isDraggable) // drag or focus
{
hs.dragObj = hs.expanders[hs.dragKey].content;
if (fobj.className.match('highslide-image')) hs.dragObj.style.cursor = 'move';
hs.leftBeforeDrag = wLeft;
hs.topBeforeDrag = wTop;
hs.dragX = e.clientX;
hs.dragY = e.clientY;
hs.addEventListener(document, 'mousemove', hs.mouseMoveHandler);
if (e.preventDefault) e.preventDefault(); // FF
if (hs.dragObj.className.match(/highslide-(image|html)-blur/)) {
hs.expanders[hs.dragKey].focus();
hs.hasFocused = true;
}
return false;
}
else if (fobj.className.match(/highslide-html/)) { // just focus
hs.expanders[hs.dragKey].focus();
hs.expanders[hs.dragKey].redoShowHide();
hs.hasFocused = false; // why??
}
} else if (e.type == 'mouseup') {
hs.removeEventListener(document, 'mousemove', hs.mouseMoveHandler);
if (isDraggable && hs.expanders[hs.dragKey]) {
if (fobj.className.match('highslide-image')) {
fobj.style.cursor = hs.styleRestoreCursor;
}
var hasMoved = wLeft != hs.leftBeforeDrag || wTop != hs.topBeforeDrag;
if (!hasMoved && !hs.hasFocused && !fobj.className.match(/highslide-move/)) {
hs.expanders[hs.dragKey].doClose();
} else if (hasMoved || (!hasMoved && hs.hasHtmlExpanders)) {
hs.expanders[hs.dragKey].redoShowHide();
}
hs.hasFocused = false;
} else if (fobj.className.match('highslide-image-blur')) {
fobj.style.cursor = hs.styleRestoreCursor;
}
}
},
mouseMoveHandler : function(e)
{
if (!hs.expanders[hs.dragKey] || !hs.expanders[hs.dragKey].wrapper) return;
if (!e) e = window.event;
var exp = hs.expanders[hs.dragKey];
var w = exp.wrapper;
w.style.left = hs.leftBeforeDrag + e.clientX - hs.dragX +'px';
w.style.top = hs.topBeforeDrag + e.clientY - hs.dragY +'px';
if (exp.objOutline) {
var o = exp.objOutline;
o.outer.style.left = (parseInt(w.style.left) - o.offset) +'px';
o.outer.style.top = (parseInt(w.style.top) - o.offset) +'px';
}
return false;
},
addEventListener : function (el, event, func) {
if (document.addEventListener) el.addEventListener(event, func, false);
else if (document.attachEvent) el.attachEvent('on'+ event, func);
else el[event] = func;
},
removeEventListener : function (el, event, func) {
if (document.removeEventListener) el.removeEventListener(event, func, false);
else if (document.detachEvent) el.detachEvent('on'+ event, func);
else el[event] = null;
},
isHsAnchor : function (a) {
return (a.className && (a.className.match("highslide$") || a.className.match("highslide ")));
},
preloadFullImage : function (i) {
if (hs.continuePreloading && hs.preloadTheseImages[i] && hs.preloadTheseImages[i] != 'undefined') {
var img = document.createElement('img');
img.onload = function() { hs.preloadFullImage(i + 1); };
img.src = hs.preloadTheseImages[i];
}
},
preloadImages : function (number) {
if (number) this.numberOfImagesToPreload = number;
var j = 0;
var aTags = document.getElementsByTagName('A');
for (i = 0; i < aTags.length; i++) {
a = aTags[i];
if (hs.isHsAnchor(a)) {
if (j < this.numberOfImagesToPreload) {
hs.preloadTheseImages[j] = hs.getSrc(a);
j++;
}
}
}
// preload outlines
new HsOutline(hs.outlineType, function () { hs.preloadFullImage(0)} );
// preload cursor
var cur = document.createElement('img');
cur.src = hs.graphicsDir + hs.restoreCursor;
},
genContainer : function () {
if (!hs.container) {
hs.container = hs.createElement('div',
null,
{ position: 'absolute', left: 0, top: 0, width: '100%', zIndex: hs.zIndexCounter },
document.body
);
}
}
}; // end hs object
//-----------------------------------------------------------------------------
HsOutline = function (outlineType, onLoad) {
if (!outlineType) return;
if (onLoad) this.onLoad = onLoad;
this.outlineType = outlineType;
this.outline = new Array();
var v = hs.ieVersion();
hs.genContainer();
this.hasAlphaImageLoader = hs.ie && v >= 5.5 && v < 8;
this.hasPngSupport = !hs.ie || (hs.ie && v >= 8);
this.hasOutline = this.outlineType && (this.hasAlphaImageLoader || this.hasPngSupport);
this.outer = hs.createElement(
'table',
{
cellSpacing: 0 // saf
},
{
visibility: 'hidden',
position: 'absolute',
zIndex: hs.zIndexCounter++,
borderCollapse: 'collapse'
},
hs.container
);
this.tbody = hs.createElement('tbody', null, null, this.outer);
this.preloadOutlineElement(1); // recursive
};
HsOutline.prototype.preloadOutlineElement = function (i) {
if (this.outline[i] && this.outline[i].onload) { // Gecko multiple onloads bug
this.outline[i].onload = null;
return;
}
this.offset = this.hasOutline ? 10 : 0;
if (i == 1 || i == 4 || i == 6) this.tr = hs.createElement('tr', null, null, this.tbody);
if (i == 5) this.inner = hs.createElement('td', null, { padding: 0, margin: 0, border: 0, position: 'relative' }, this.tr);
var files = Array (0,8,1,2,7,3,6,5,4);
var src = hs.graphicsDir + "outlines/"+ this.outlineType +"/"+ files[i] +".png";
if (this.hasAlphaImageLoader) {
var bgKey = 'filter';
var bgValue = "progid:DXImageTransform.Microsoft.AlphaImageLoader("
+ "enabled=true, sizingMethod=scale src='"+ src + "') ";
} else if (this.hasPngSupport || this.hasIe7Bug) {
var bgKey = 'background';
var bgValue = 'url('+ src +')';
}
var styles = { lineHeight: 0, fontSize: 0, padding: 0, margin: 0, border: 0 };
if (this.hasOutline) styles[bgKey] = bgValue;
var td = hs.createElement('td', null, styles);
var img = hs.createElement('img', null, { visibility: 'hidden', display: 'block' }, td); // for onload trigger
var dim = 2 * this.offset;
hs.setStyles (td, { height: dim +'px', width: dim +'px'} );
var pThis = this;
if (i < 8) img.onload = function() { pThis.preloadOutlineElement(i + 1); };
else img.onload = function() {
hs.pendingOutlines[pThis.outlineType] = pThis;
if (pThis.onLoad) pThis.onLoad();
};
this.tr.appendChild(td);
if (this.hasOutline) img.src = src;
else img.onload();
};
HsOutline.prototype.destroy = function() {
this.outer.parentNode.removeChild(this.outer);
};
//-----------------------------------------------------------------------------
// The expander object
HsExpander = function(a, params, contentType) {
hs.continuePreloading = false;
// override inline parameters
for (i = 0; i < hs.overrides.length; i++) {
var name = hs.overrides[i];
if (params && typeof params[name] != 'undefined') this[name] = params[name];
else this[name] = hs[name];
}
if (params && params.thumbnailId) {
var el = hs.$(params.thumbnailId);
} else { // first img within anchor
for (i = 0; i < a.childNodes.length; i++) {
if (a.childNodes[i].tagName && a.childNodes[i].tagName == 'IMG') {
var el = a.childNodes[i];
break;
}
}
}
if (!el) el = a;
// cancel other
for (i = 0; i < hs.expanders.length; i++) {
if (hs.expanders[i] && hs.expanders[i].thumb != el && !hs.expanders[i].onLoadStarted) {
hs.expanders[i].cancelLoading();
}
}
// check if already open
for (i = 0; i < hs.expanders.length; i++) {
if (hs.expanders[i] && hs.expanders[i].thumb == el) {
hs.expanders[i].focus();
return false;
}
else if (hs.expanders[i] && !hs.allowMultipleInstances) {
hs.expanders[i].doClose();
}
}
this.key = hs.expandedImagesCounter++;
hs.expanders[this.key] = this;
if (contentType == 'html') {
this.isHtml = true;
this.contentType = 'html';
} else {
this.isImage = true;
this.contentType = 'image';
}
this.a = a;
this.thumbsUserSetId = el.id || a.id;
this.thumb = el;
this.overlays = new Array();
var pos = hs.position(el);
// instanciate the wrapper
this.wrapper = hs.createElement(
'div',
{
id: 'highslide-wrapper-'+ this.key,
className: this.wrapperClassName
},
{
visibility: 'hidden',
position: 'absolute',
zIndex: hs.zIndexCounter++
}
);
// store properties of thumbnail
this.thumbWidth = el.width ? el.width : el.offsetWidth;
this.thumbHeight = el.height ? el.height : el.offsetHeight;
this.thumbLeft = pos.x;
this.thumbTop = pos.y;
this.thumbClass = el.className;
// thumb borders
this.thumbOffsetBorderW = (this.thumb.offsetWidth - this.thumbWidth) / 2;
this.thumbOffsetBorderH = (this.thumb.offsetHeight - this.thumbHeight) / 2;
// get the wrapper
if (hs.pendingOutlines[this.outlineType]) {
this.connectOutline();
this[this.contentType +'Create']();
} else if (!this.outlineType) {
hs.genContainer();
this[this.contentType +'Create']();
} else {
this.displayLoading();
var pThis = this;
new HsOutline(this.outlineType,
function () {
pThis.connectOutline();
pThis[pThis.contentType +'Create']();
}
);
}
};
HsExpander.prototype.connectOutline = function(x, y) {
var w = hs.pendingOutlines[this.outlineType];
this.objOutline = w;
hs.pendingOutlines[this.outlineType] = null;
};
HsExpander.prototype.displayLoading = function() {
if (this.onLoadStarted || this.loading) return;
this.originalCursor = this.a.style.cursor;
this.a.style.cursor = 'wait';
if (!hs.loading) {
hs.loading = hs.createElement('a',
{
className: 'highslide-loading',
title: hs.loadingTitle,
innerHTML: hs.loadingText
},
{
position: 'absolute'
}, hs.container
);
if (hs.ie) hs.loading.style.filter = 'alpha(opacity='+ (100*hs.loadingOpacity) +')';
else hs.loading.style.opacity = hs.loadingOpacity;
}
this.loading = hs.loading;
this.loading.href = 'javascript:hs.expanders['+ this.key +'].cancelLoading()';
this.loading.visibility = 'visible';
this.loading.style.left = (this.thumbLeft + this.thumbOffsetBorderW
+ (this.thumbWidth - this.loading.offsetWidth) / 2) +'px';
this.loading.style.top = (this.thumbTop
+ (this.thumbHeight - this.loading.offsetHeight) / 2) +'px';
setTimeout(
"if (hs.expanders["+ this.key +"] && hs.expanders["+ this.key +"].loading) "
+ "hs.expanders["+ this.key +"].loading.style.visibility = 'visible';",
100
);
};
HsExpander.prototype.imageCreate = function() {
var img = document.createElement('img');
var key = this.key;
var img = document.createElement('img');
this.content = img;
img.onload = function () { if (hs.expanders[key]) hs.expanders[key].onLoad(); };
img.className = 'highslide-image '+ this.thumbClass;
img.style.visibility = 'hidden'; // prevent flickering in IE
img.style.display = 'block';
img.style.position = 'absolute';
img.style.zIndex = 3;
img.title = hs.restoreTitle;
img.onmouseover = function () {
if (hs.expanders[key]) hs.expanders[key].onMouseOver();
};
img.onmouseout = function (e) {
var rel = e ? e.relatedTarget : event.toElement;
if (hs.expanders[key]) hs.expanders[key].onMouseOut(rel);
};
if (hs.safari) hs.container.appendChild(img);
img.src = hs.getSrc(this.a);
this.displayLoading();
};
HsExpander.prototype.onLoad = function() {
try {
if (!this.content) return;
if (this.onLoadStarted) return; // old Gecko loop
else this.onLoadStarted = true;
if (this.loading) {
this.loading.style.visibility = 'hidden';
this.loading = null;
this.a.style.cursor = this.originalCursor || '';
}
if (this.isImage) {
this.newWidth = this.content.width;
this.newHeight = this.content.height;
this.fullExpandWidth = this.newWidth;
this.fullExpandHeight = this.newHeight;
this.content.width = this.thumbWidth;
this.content.height = this.thumbHeight;
}
// identify caption div
var modMarginBottom = hs.marginBottom;
if (!this.captionId && this.thumbsUserSetId) this.captionId = 'caption-for-'+ this.thumbsUserSetId;
if (this.captionId && (hs.$(this.captionId) || hs.$(this.captionId +'-taken'))) {
this.origCaption = hs.$(this.captionId +'-taken') ? hs.$(this.captionId +'-taken') : hs.$(this.captionId);
this.caption = this.origCaption.cloneNode(1);
modMarginBottom += this.spaceForCaption;
if (!hs.$(this.captionId +'-taken')) this.origCaption.id = this.captionId +'-taken';
if (!hs.$(this.captionId)) this.caption.id = this.captionId;
else this.caption.id = null;
if (this.captionTemplateId && hs.$(this.captionTemplateId)) {
this.origCapTpl = hs.$(this.captionTemplateId);
this.capTpl = this.origCapTpl.cloneNode(1);
this.capTpl.innerHTML
= this.capTpl.innerHTML.replace(/\s/g, ' ').replace('{caption}', this.caption.innerHTML);
this.caption = this.capTpl;
}
}
this.wrapper.appendChild(this.content);
this.content.style.position = 'relative'; // Saf
if (this.caption) this.wrapper.appendChild(this.caption);
this.wrapper.style.left = this.thumbLeft +'px';
this.wrapper.style.top = this.thumbTop +'px';
hs.container.appendChild(this.wrapper);
// correct for borders
this.offsetBorderW = (this.content.offsetWidth - this.thumbWidth) / 2;
this.offsetBorderH = (this.content.offsetHeight - this.thumbHeight) / 2;
var modMarginRight = hs.marginRight + 2 * this.offsetBorderW;
modMarginBottom += 2 * this.offsetBorderH;
var ratio = this.newWidth / this.newHeight;
var minWidth = this.allowSizeReduction ? this.minWidth : this.newWidth;
var minHeight = this.allowSizeReduction ? this.minHeight : this.newHeight;
var justify = { x: 'auto', y: 'auto' };
if (this.align == 'center') {
justify.x = 'center';
justify.y = 'center';
} else {
if (this.anchor.match(/^top/)) justify.y = null;
if (this.anchor.match(/right$/)) justify.x = 'max';
if (this.anchor.match(/^bottom/)) justify.y = 'max';
if (this.anchor.match(/left$/)) justify.x = null;
}
client = new hs.clientInfo();
// justify
this.x = {
min: parseInt(this.thumbLeft) - this.offsetBorderW + this.thumbOffsetBorderW,
span: this.newWidth,
minSpan: this.newWidth < minWidth ? this.newWidth : minWidth,
justify: justify.x,
marginMin: hs.marginLeft,
marginMax: modMarginRight,
scroll: client.scrollLeft,
clientSpan: client.width,
thumbSpan: this.thumbWidth
};
var oldRight = this.x.min + parseInt(this.thumbWidth);
this.x = this.justify(this.x);
this.y = {
min: parseInt(this.thumbTop) - this.offsetBorderH + this.thumbOffsetBorderH,
span: this.newHeight,
minSpan: this.newHeight < minHeight ? this.newHeight : minHeight,
justify: justify.y,
marginMin: hs.marginTop,
marginMax: modMarginBottom,
scroll: client.scrollTop,
clientSpan: client.height,
thumbSpan: this.thumbHeight
};
var oldBottom = this.y.min + parseInt(this.thumbHeight);
this.y = this.justify(this.y);
if (this.isHtml) this.htmlSizeOperations();
if (this.isImage) this.correctRatio(ratio);
var x = this.x;
var y = this.y;
// Selectbox bug
var imgPos = {x: x.min - 20, y: y.min - 20, w: x.span + 40, h: y.span + 40 + this.spaceForCaption};
hs.hideSelects = (hs.ie && hs.ieVersion() < 7);
if (hs.hideSelects) this.showHideElements('SELECT', 'hidden', imgPos);
// Iframes bug
hs.hideIframes = (window.opera || navigator.vendor == 'KDE' || (hs.ie && hs.ieVersion() < 5.5));
if (hs.hideIframes) this.showHideElements('IFRAME', 'hidden', imgPos);
// Make outline ready
if (this.objOutline && !this.outlineWhileAnimating) this.positionOutline(x.min, y.min, x.span, y.span);
var o2 = this.objOutline ? this.objOutline.offset : 0;
// Apply size change
this.changeSize(
1,
this.thumbLeft + this.thumbOffsetBorderW - this.offsetBorderW,
this.thumbTop + this.thumbOffsetBorderH - this.offsetBorderH,
this.thumbWidth,
this.thumbHeight,
x.min,
y.min,
x.span,
y.span,
hs.expandDuration,
hs.expandSteps,
hs.outlineStartOffset,
o2
);
} catch (e) {
if (hs.expanders[this.key] && hs.expanders[this.key].a)
window.location.href = hs.getSrc(hs.expanders[this.key].a);
}
};
HsExpander.prototype.changeSize = function(dir, x1, y1, w1, h1, x2, y2, w2, h2, dur, steps, oo1, oo2) {
dW = (w2 - w1) / steps;
dH = (h2 - h1) / steps;
dX = (x2 - x1) / steps;
dY = (y2 - y1) / steps;
dOo = (oo2 - oo1) /steps;
for (i = 1; i <= steps; i++) {
w1 += dW;
h1 += dH;
x1 += dX;
y1 += dY;
oo1 += dOo;
var obj = "hs.expanders["+ this.key +"]";
var s = "if ("+ obj +") {";
if (i == 1) {
s += obj +".content.style.visibility = 'visible';"
+ "if ("+ obj +".thumb.tagName == 'IMG' && hs.hideThumbOnExpand) "+ obj +".thumb.style.visibility = 'hidden';"
}
if (i == steps) {
w1 = w2;
h1 = h2;
x1 = x2;
y1 = y2;
oo1 = oo2;
}
s += obj +"."+ this.contentType +"SetSize("+ Math.round(w1) +", "+ Math.round(h1) +", "
+ Math.round(x1) +", "+ Math.round(y1) +", "+ Math.round(oo1);
if (i == steps) s += ', '+ dir;
s += ");}";
setTimeout(s, Math.round(i * (dur / steps)));
}
};
HsExpander.prototype.imageSetSize = function (w, h, x, y, offset, end) {
try {
this.content.width = w;
this.content.height = h;
if (this.objOutline && this.outlineWhileAnimating) {
var o = this.objOutline.offset - offset;
this.positionOutline(x + o, y + o, w - 2 * o, h - 2 * o, 1);
}
hs.setStyles ( this.wrapper,
{
'visibility': 'visible',
'left': x +'px',
'top': y +'px'
}
);
if (end == 1) this.onExpanded();
else if (end == -1) this.onEndClose();
} catch (e) {
window.location.href = hs.getSrc(this.a);
}
};
HsExpander.prototype.positionOutline = function(x, y, w, h, vis) {
if (!this.objOutline) return;
var o = this.objOutline;
if (vis) o.outer.style.visibility = 'visible';
o.outer.style.left = (x - o.offset) +'px';
o.outer.style.top = (y - o.offset) +'px';
o.outer.style.width = (w + 2 * (this.offsetBorderW + o.offset)) +'px';
w += 2 * (this.offsetBorderW - o.offset);
h += + 2 * (this.offsetBorderH - o.offset);
o.inner.style.width = w >= 0 ? w +'px' : 0;
o.inner.style.height = h >= 0 ? h +'px' : 0;
};
HsExpander.prototype.onExpanded = function() {
if (this.objOutline) this.objOutline.outer.style.visibility = 'visible';
this.isExpanded = true;
this.focus();
if (this.isHtml && this.objectLoadTime == 'after') this.writeExtendedContent();
this.createCustomOverlays();
if (hs.showCredits) this.writeCredits();
if (this.caption) this.writeCaption();
if (this.fullExpandWidth > this.x.span) this.createFullExpand();
if (!this.caption) this.onDisplayFinished();
};
HsExpander.prototype.onDisplayFinished = function() {
var key = this.key;
var outlineType = this.outlineType;
new HsOutline(outlineType, function () { if (hs.expanders[key]) hs.expanders[key].preloadNext(); });
};
HsExpander.prototype.preloadNext = function() {
var nextA = hs.getAdjacentAnchor(this.key, 1);
if (nextA) {
var img = document.createElement('img');
img.src = hs.getSrc(nextA);
}
};
HsExpander.prototype.justify = function (p) {
if (p.justify == 'auto' || p.justify == 'center') {
var hasMovedMin = false;
var allowReduce = true;
// calculate p.min
if (p.justify == 'center') p.min = Math.round(p.scroll + (p.clientSpan - p.span - p.marginMax) / 2);
else p.min = Math.round(p.min - ((p.span - p.thumbSpan) / 2)); // auto
if (p.min < p.scroll + p.marginMin) {
p.min = p.scroll + p.marginMin;
hasMovedMin = true;
}
if (p.span < p.minSpan) {
p.span = p.minSpan;
allowReduce = false;
}
// calculate right/newWidth
if (p.min + p.span > p.scroll + p.clientSpan - p.marginMax) {
if (hasMovedMin && allowReduce) p.span = p.clientSpan - p.marginMin - p.marginMax; // can't expand more
else if (p.span < p.clientSpan - p.marginMin - p.marginMax) { // move newTop up
p.min = p.scroll + p.clientSpan - p.span - p.marginMin - p.marginMax;
} else { // image larger than client
p.min = p.scroll + p.marginMin;
if (allowReduce) p.span = p.clientSpan - p.marginMin - p.marginMax;
}
}
if (p.span < p.minSpan) {
p.span = p.minSpan;
allowReduce = false;
}
} else if (p.justify == 'max') {
p.min = Math.floor(p.min - p.span + p.thumbSpan);
}
if (p.min < p.marginMin) {
tmpMin = p.min;
p.min = p.marginMin;
if (allowReduce) p.span = p.span - (p.min - tmpMin);
}
return p;
};
HsExpander.prototype.correctRatio = function(ratio) {
var x = this.x;
var y = this.y;
var changed = false;
if (x.span / y.span > ratio) { // width greater
var tmpWidth = x.span;
x.span = y.span * ratio;
if (x.span < x.minSpan) { // below minWidth
x.span = x.minSpan;
y.span = x.span / ratio;
}
changed = true;
} else if (x.span / y.span < ratio) { // height greater
var tmpHeight = y.span;
y.span = x.span / ratio;
changed = true;
}
if (changed) {
x.min = parseInt(this.thumbLeft) - this.offsetBorderW + this.thumbOffsetBorderW;
x.minSpan = x.span;
this.x = this.justify(x);
y.min = parseInt(this.thumbTop) - this.offsetBorderH + this.thumbOffsetBorderH;
y.minSpan = y.span;
this.y = this.justify(y);
}
};
HsExpander.prototype.cancelLoading = function() {
this.a.style.cursor = this.originalCursor;
if (this.loading) hs.loading.style.visibility = 'hidden';
hs.expanders[this.key] = null;
};
HsExpander.prototype.writeCredits = function () {
var credits = hs.createElement('a',
{
href: hs.creditsHref,
className: 'highslide-credits',
innerHTML: hs.creditsText,
title: hs.creditsTitle
}
);
this.createOverlay(credits, 'top left');
};
HsExpander.prototype.writeCaption = function() {
try {
this.wrapper.style.width = this.wrapper.offsetWidth +'px';
this.caption.style.visibility = 'hidden';
this.caption.style.position = 'relative';
if (hs.ie) this.caption.style.zoom = 1;
this.caption.className += ' highslide-display-block';
var capHeight = this.caption.offsetHeight;
var slideHeight = (capHeight < this.content.height) ? capHeight : this.content.height;
this.caption.style.top = '-'+ slideHeight +'px';
this.caption.style.zIndex = 2;
var step = 1;
if (slideHeight > 400) step = 4;
else if (slideHeight > 200) step = 2;
else if (slideHeight > 100) step = 1;
if (hs.captionSlideSpeed) step = step * hs.captionSlideSpeed;
else step = slideHeight;
var t = 0;
for (var top = -slideHeight; top <= 0; top += step, t += 10) {
var end = (top >= 0) ? 1 : 0;
var eval = "if (hs.expanders["+ this.key +"]) { "
+ "hs.expanders["+ this.key +"].placeCaption("+ top +", "+ end +");"
+ "}";
setTimeout (eval, t);
}
} catch (e) {}
};
HsExpander.prototype.placeCaption = function(top, end) {
if (!this.caption) return;
this.caption.style.top = top +'px';
this.caption.style.visibility = 'visible';
if (this.objOutline) this.objOutline.inner.style.height
= (this.wrapper.offsetHeight + top - 2 * this.objOutline.offset) +'px';
if (end) this.onDisplayFinished();
};
HsExpander.prototype.showHideElements = function (tagName, visibility, imgPos) {
var els = document.getElementsByTagName(tagName);
if (els) {
for (i = 0; i < els.length; i++) {
if (els[i].nodeName == tagName) {
var hiddenBy = els[i].getAttribute('hidden-by');
if (visibility == 'visible' && hiddenBy) {
hiddenBy = hiddenBy.replace('['+ this.key +']', '');
els[i].setAttribute('hidden-by', hiddenBy);
if (!hiddenBy) els[i].style.visibility = 'visible';
} else if (visibility == 'hidden') { // hide if behind
var elPos = hs.position(els[i]);
elPos.w = els[i].offsetWidth;
elPos.h = els[i].offsetHeight;
var clearsX = (elPos.x + elPos.w < imgPos.x || elPos.x > imgPos.x + imgPos.w);
var clearsY = (elPos.y + elPos.h < imgPos.y || elPos.y > imgPos.y + imgPos.h);
var wrapperKey = hs.getWrapperKey(els[i]);
if (!clearsX && !clearsY && wrapperKey != this.key) { // element falls behind image
if (!hiddenBy) {
els[i].setAttribute('hidden-by', '['+ this.key +']');
} else if (!hiddenBy.match('['+ this.key +']')) {
els[i].setAttribute('hidden-by', hiddenBy + '['+ this.key +']');
}
els[i].style.visibility = 'hidden';
} else if (hiddenBy == '['+ this.key +']' || hs.focusKey == wrapperKey) { // on move
els[i].setAttribute('hidden-by', '');
els[i].style.visibility = 'visible';
} else if (hiddenBy && hiddenBy.match('['+ this.key +']')) {
els[i].setAttribute('hidden-by', hiddenBy.replace('['+ this.key +']', ''));
}
}
}
}
}
};
HsExpander.prototype.focus = function() {
// blur others
for (i = 0; i < hs.expanders.length; i++) {
if (hs.expanders[i] && i == hs.focusKey) {
var blurExp = hs.expanders[i];
blurExp.content.className += ' highslide-'+ blurExp.contentType +'-blur';
if (blurExp.caption) {
blurExp.caption.className += ' highslide-caption-blur';
}
if (blurExp.isImage) {
blurExp.content.style.cursor = hs.ie ? 'hand' : 'pointer';
blurExp.content.title = hs.focusTitle;
}
}
}
// focus this
this.wrapper.style.zIndex = hs.zIndexCounter++;
if (this.objOutline) this.objOutline.outer.style.zIndex = this.wrapper.style.zIndex;
this.content.className = 'highslide-'+ this.contentType;
if (this.caption) {
this.caption.className = this.caption.className.replace(' highslide-caption-blur', '');
}
if (this.isImage) {
this.content.title = hs.restoreTitle;
hs.styleRestoreCursor = window.opera ? 'pointer' : 'url('+ hs.graphicsDir + hs.restoreCursor +'), pointer';
if (hs.ie && hs.ieVersion() < 6) hs.styleRestoreCursor = 'hand';
this.content.style.cursor = hs.styleRestoreCursor;
}
hs.focusKey = this.key;
hs.addEventListener(document, 'keydown', hs.keyHandler);
};
HsExpander.prototype.doClose = function() {
hs.removeEventListener(document, 'keydown', hs.keyHandler);
try {
if (!hs.expanders[this.key]) return;
this.isClosing = true;
var x = parseInt(this.wrapper.style.left);
var y = parseInt(this.wrapper.style.top);
var w = (this.isImage) ? this.content.width : parseInt(this.content.style.width);
var h = (this.isImage) ? this.content.height : parseInt(this.content.style.height);
if (this.objOutline && this.outlineWhileAnimating) this.positionOutline(x, y, w, h);
else if (this.objOutline) this.objOutline.destroy();
// remove children
var n = this.wrapper.childNodes.length;
for (i = n - 1; i >= 0 ; i--) {
var child = this.wrapper.childNodes[i];
if (child != this.content) {
this.wrapper.removeChild(this.wrapper.childNodes[i]);
}
}
if (this.objectLoadTime == 'after') this.destroyObject();
if (this.scrollerDiv && this.scrollerDiv != 'scrollingContent')
this[this.scrollerDiv].style.overflow = 'hidden';
this.wrapper.style.width = 'auto';
this.content.style.cursor = 'default';
var o2 = this.objOutline ? this.objOutline.offset : 0;
this.changeSize(
-1,
x,
y,
w,
h,
this.thumbLeft - this.offsetBorderW + this.thumbOffsetBorderW,
this.thumbTop - this.offsetBorderH + this.thumbOffsetBorderH,
this.thumbWidth,
this.thumbHeight,
hs.restoreDuration,
hs.restoreSteps,
o2,
hs.outlineStartOffset
);
} catch (e) {
hs.expanders[this.key].onEndClose();
}
};
HsExpander.prototype.onEndClose = function () {
this.thumb.style.visibility = 'visible';
if (hs.hideSelects) this.showHideElements('SELECT', 'visible');
if (hs.hideIframes) this.showHideElements('IFRAME', 'visible');
this.wrapper.parentNode.removeChild(this.wrapper);
if (this.objOutline && this.outlineWhileAnimating) this.objOutline.destroy();
hs.expanders[this.key] = null;
hs.cleanUp();
};
HsExpander.prototype.createOverlay = function (el, position, hideOnMouseOut, opacity) {
if (typeof el == 'string' && hs.$(el)) {
el = hs.$(el).cloneNode(true);
el.id = null;
}
if (!el || typeof el == 'string' || !this.isImage) return;
if (!position) var position = 'center center';
var overlay = hs.createElement(
'div',
null,
{
'position' : 'absolute',
'zIndex' : 3
},
this.wrapper
);
if (opacity && opacity < 1) {
if (hs.ie) overlay.style.filter = 'alpha(opacity='+ (opacity * 100) +')';
else overlay.style.opacity = opacity;
}
el.className += ' highslide-display-block';
overlay.appendChild(el);
var left = this.offsetBorderW;
var dLeft = this.content.width - overlay.offsetWidth;
var top = this.offsetBorderH;
var dTop = this.content.height - overlay.offsetHeight;
if (position.match(/^bottom/)) top += dTop;
if (position.match(/^center/)) top += dTop / 2;
if (position.match(/right$/)) left += dLeft;
if (position.match(/center$/)) left += dLeft / 2;
overlay.style.left = left +'px';
overlay.style.top = top +'px';
if (hideOnMouseOut) overlay.setAttribute('hideOnMouseOut', true);
hs.push(this.overlays, overlay);
};
HsExpander.prototype.createCustomOverlays = function() {
for (i = 0; i < hs.overlays.length; i++) {
var o = hs.overlays[i];
if (o.thumbnailId == null || o.thumbnailId == this.thumbsUserSetId) {
this.createOverlay(o.overlayId, o.position, o.hideOnMouseOut, o.opacity);
}
}
};
HsExpander.prototype.onMouseOver = function () {
for (i = 0; i < this.overlays.length; i++) {
this.overlays[i].style.visibility = 'visible';
}
};
HsExpander.prototype.onMouseOut = function(rel) {
var hideThese = new Array();
var j = 0;
for (i = 0; i < this.overlays.length; i++) {
var node = rel;
while (node && node.parentNode) {
if (node == this.overlays[i]) return;
node = node.parentNode;
}
if (this.overlays[i].getAttribute('hideOnMouseOut')) {
hideThese[j] = this.overlays[i];
j++;
}
}
for (i = 0; i < hideThese.length; i++) {
hideThese[i].style.visibility = 'hidden';
}
};
HsExpander.prototype.createFullExpand = function () {
var a = hs.createElement(
'a',
{
href: 'javascript:hs.expanders['+ this.key +'].doFullExpand();',
title: hs.fullExpandTitle
},
{
background: 'url('+ hs.graphicsDir + hs.fullExpandIcon+')',
display: 'block',
margin: '0 10px 10px 0',
width: '45px',
height: '44px'
}
);
this.createOverlay(a, 'bottom right', true, 0.75);
this.fullExpandIcon = a;
};
HsExpander.prototype.doFullExpand = function () {
try {
this.fullExpandIcon.parentNode.removeChild(this.fullExpandIcon);
this.focus();
this.x.min = parseInt(this.wrapper.style.left) - (this.fullExpandWidth - this.content.width) / 2;
if (this.x.min < hs.marginLeft) this.x.min = hs.marginLeft;
this.wrapper.style.left = this.x.min +'px';
var borderOffset = this.wrapper.offsetWidth - this.content.width;
this.content.width = this.fullExpandWidth;
this.content.height = this.fullExpandHeight;
this.x.span = this.content.width;
this.wrapper.style.width = (this.x.span + borderOffset) +'px';
this.y.span = this.wrapper.offsetHeight - 2 * this.offsetBorderH;
this.positionOutline(this.x.min, this.y.min, this.x.span, this.y.span);
// reposition overlays
for (x in this.overlays) {
this.overlays[x].parentNode.removeChild(this.overlays[x]);
}
if (hs.showCredits) this.writeCredits();
this.createCustomOverlays();
this.redoShowHide();
} catch (e) {
// window.location.href = hs.expanders[this.key].content.src;
}
};
// on end move and resize
HsExpander.prototype.redoShowHide = function() {
var imgPos = {
x: parseInt(this.wrapper.style.left) - 20,
y: parseInt(this.wrapper.style.top) - 20,
w: this.content.offsetWidth + 40,
h: this.content.offsetHeight + 40 + this.spaceForCaption
};
if (hs.hideSelects) this.showHideElements('SELECT', 'hidden', imgPos);
if (hs.hideIframes) this.showHideElements('IFRAME', 'hidden', imgPos);
};
// set handlers
hs.addEventListener(document, 'mousedown', hs.mouseClickHandler);
hs.addEventListener(document, 'mouseup', hs.mouseClickHandler);