//----------------------------------------------------------
// WebPlus LightBox
//----------------------------------------------------------
(function($)
{
jQuery.fn.wplightbox = function( settings )
{
//-----------------------------------
// Extend jQuery settings to include arguments
//-----------------------------------
settings = jQuery.extend(
{
bShowToolTip: false,
strCloseToolTip: 'Close (Esc)',
strPrevToolTip: 'Previous (<)',
strNextToolTip: 'Next (>)',
strPlayToolTip: 'Play',
strPauseToolTip: 'Pause',
bBkgrndClickable: true,
strBkgrndCol: '#000000',
nBkgrndOpacity: 0.5,
strContentCol: '#ffffff',
nContentOpacity: 0.8,
strCaptionCol: '#555555',
nCaptionOpacity: 1.0,
nCaptionType: 1,
bCaptionCount: false,
strCaptionFontType: 'Tahoma,Serif',
strCaptionFontCol: '#ffffff',
nCaptionFontSz: 15,
bShowPlay: true,
bAnimateOpenClose: true,
nPlayPeriod: 2000,
//-----------------------------------
// Permanent Settings
//-----------------------------------
nZIndex: 151,
nPlayBtnOffset: 18,
nNextBtnSz: 35,
nLoadBtnSz: 50,
nPlayBtnSz: 40,
nBtnOffset: 10,
nTableBorderSz: 10,
nCaptionPadding: 15,
nCaptionOffset: 10,
bShowTranspBkgrndDiv: true,
loadBtnSrc: ( settings.strImgDir + 'lightbox_load.gif' ),
blankSrc: ( settings.strScriptDir + 'blank.gif' ),
playBtnSrc: ( settings.strImgDir + 'lightbox_play.png' ),
playOverBtnSrc: ( settings.strImgDir + 'lightbox_play_over.png' ),
pauseBtnSrc: ( settings.strImgDir + 'lightbox_pause.png' ),
pauseOverBtnSrc: ( settings.strImgDir + 'lightbox_pause_over.png' ) ,
closeBtnSrc: ( settings.strImgDir + 'lightbox_close_' + settings.nButtonType + '.png' ),
closeOverBtnSrc: ( settings.strImgDir + 'lightbox_close_over_' + settings.nButtonType + '.png' ),
nextBtnSrc: ( settings.strImgDir + 'lightbox_next_' + settings.nButtonType + '.png' ),
nextOverBtnSrc: ( settings.strImgDir + 'lightbox_next_over_' + settings.nButtonType + '.png' ),
prevBtnSrc: ( settings.strImgDir + 'lightbox_prev_' + settings.nButtonType + '.png' ),
prevOverBtnSrc: ( settings.strImgDir + 'lightbox_prev_over_' + settings.nButtonType + '.png' ),
border_n: ( settings.strImgDir + 'lightbox_n_' + settings.nBorderType + '.png' ),
border_e: ( settings.strImgDir + 'lightbox_e_' + settings.nBorderType + '.png' ),
border_s: ( settings.strImgDir + 'lightbox_s_' + settings.nBorderType + '.png' ),
border_w: ( settings.strImgDir + 'lightbox_w_' + settings.nBorderType + '.png' ),
border_ne: ( settings.strImgDir + 'lightbox_ne_' + settings.nBorderType + '.png' ),
border_nw: ( settings.strImgDir + 'lightbox_nw_' + settings.nBorderType + '.png' ),
border_se: ( settings.strImgDir + 'lightbox_se_' + settings.nBorderType + '.png' ),
border_sw: ( settings.strImgDir + 'lightbox_sw_' + settings.nBorderType + '.png' )
}, settings);
//-----------------------------------
// Declare browser enumeration
//-----------------------------------
var eBrowser =
{
Msie:0,
Mozilla:1,
Safari:2,
Opera:3,
Chrome:4
};
//-----------------------------------
// Declare rel enumeration
//-----------------------------------
var eRel =
{
GalleryId:0,
UniqueId:1,
Caption:2,
Width:3,
Height:4
};
//-----------------------------------
// Declare content enumeration
//-----------------------------------
var eContent =
{
Image:0,
Iframe:1,
Flash:2,
QuickTime:3
};
//-----------------------------------
// Declare caption position enumeration
//-----------------------------------
var eCaption =
{
NoCaption:0,
ExternalDivBottom:1,
ExternalDivTop:2
};
//-----------------------------------
// Declare mouse over enumeration
//-----------------------------------
var eMouseOver =
{
None:0,
Next:1,
Prev:2
};
//-----------------------------------
// Declare member variables
//-----------------------------------
var m_nContentType = eContent.Image;
var m_AnchorArray = new Array();
var m_nArrayPos = 0;
var m_nArraySize = 0;
var $m_BackgroundDiv = null;
var $m_Table = null;
var $m_Content = null;
var $m_ContentContainer = null;
var $m_CloseDiv = null;
var $m_NextDiv = null;
var $m_PrevDiv = null;
var $m_PlayDiv = null;
var $m_CaptionContainer = null;
var $m_Caption = null;
var m_strCloseTitle = settings.bShowToolTip ? 'title="' + settings.strCloseToolTip + '"' : '';
var m_strPrevTitle = settings.bShowToolTip ? 'title="' + settings.strPrevToolTip + '"' : '';
var m_strNextTitle = settings.bShowToolTip ? 'title="' + settings.strNextToolTip + '"' : '';
var m_strPlayTitle = settings.bShowToolTip ? 'title="' + settings.strPlayToolTip + '"' : '';
var m_strPauseTitle = settings.bShowToolTip ? 'title="' + settings.strPauseToolTip + '"' : '';
var m_bResizing = false;
var m_bClosing = false;
var m_nResizeStep = 0;
var m_nResizeTimerId = 0;
var m_bChangingContent = false;
var m_bSingleItem = false;
var m_strSource;
var m_strCaption;
var m_nContentWidth = 0;
var m_nContentHeight = 0;
var m_nContentLeft = 0;
var m_nContentTop = 0;
var m_nOldContentWidth = m_nContentWidth;
var m_nOldContentHeight = m_nContentHeight;
var m_nOldContentLeft = m_nContentLeft;
var m_nOldContentTop = m_nContentTop;
var m_nDefaultWidth = 600;
var m_nDefaultHeight = 400;
var m_nCaptionHeight = settings.nCaptionFontSz + settings.nCaptionPadding;
var m_bPlaying = false;
var m_nPlayTimerId = 0;
var m_nMouseOverPos = 0;
var m_nBrowser = eBrowser.Opera;
if( jQuery.browser.mozilla )
m_nBrowser = eBrowser.Mozilla;
if( jQuery.browser.msie )
m_nBrowser = eBrowser.Msie;
else if( /chrome/.test( navigator.userAgent.toLowerCase() ) )
m_nBrowser = eBrowser.Chrome;
else if( jQuery.browser.safari )
m_nBrowser = eBrowser.Safari;
var m_bPngHack = ( jQuery.browser.msie && jQuery.browser.version < 7 );
//-----------------------------------
// Initialise gallery
//-----------------------------------
this.click(function()
{
if( !$m_Table )
Initialise( this );
return false;
});
//--------------------------------------
// Main initialisation function which registers events and configures lightbox
//--------------------------------------
function Initialise( anchor )
{
// Reset content dimensions
m_nContentWidth = 200;
m_nContentHeight = 200;
m_nContentLeft = GetContentLeft();
m_nContentTop = GetContentTop();
StoreOldDimensions();
// Preload loading image
imgLoad = new Image();
imgLoad.src = settings.loadBtnSrc;
//-----------------------------------
// Add lightbox elements
//-----------------------------------
// Add transparent background Div
if( settings.bShowTranspBkgrndDiv )
{
$('body').append('');
$m_BackgroundDiv = $('#wplightbox_bkgrnd');
}
// Add table to hold image contents
var strTable = '\
\
\
| \
| \
| \
\
\
| \
 | \
| \
\
\
| \
| \
| \
\
\
';
// Append contents table
$('body').append( strTable );
$m_Table = $('#wplightbox_table');
$m_ContentContainer = $('#wplightbox_contentcol');
$m_Content = $('#wplightbox_content');
// Add close button
$('body').append('');
$m_CloseDiv = $('#wplightbox_closediv');
// Add next and previous buttons
$('body').append('');
$('body').append('');
$m_NextDiv = $('#wplightbox_nextdiv');
$m_PrevDiv = $('#wplightbox_prevdiv');
// Add play button
if( settings.bShowPlay )
{
$('body').append('');
$m_PlayDiv = $('#wplightbox_playdiv');
}
// Initialise captions
InitCaption();
// Register mouse click
if( settings.bShowTranspBkgrndDiv && settings.bBkgrndClickable )
{
$m_BackgroundDiv.click(function()
{
StartClose();
return false;
});
}
//-----------------------------------
// Bind lightbox events
//-----------------------------------
// Register resize event
$(window).bind('resize', function()
{
m_nContentLeft = GetContentLeft();
m_nContentTop = GetContentTop();
if( settings.bShowTranspBkgrndDiv )
$m_BackgroundDiv.css({ 'width':GetPageWidth(), 'height':GetPageHeight(), 'overflow':'hidden' });
// Remove and re-append contents table - this fixes a bug with
// safari where resizing the table causes table border artefacts
if( $m_CaptionContainer )
{
$m_CaptionContainer.remove();
$m_CaptionContainer = null;
}
$m_Table.remove();
$('body').append( strTable );
$m_Table = $('#wplightbox_table');
$m_ContentContainer = $('#wplightbox_contentcol');
$m_Content = $('#wplightbox_content');
$m_Content.attr({ 'src':m_strSource, 'width':m_nContentWidth, 'height':m_nContentHeight });
$m_Table.css({ 'left':(m_nContentLeft - settings.nTableBorderSz), 'top':(m_nContentTop - settings.nTableBorderSz), 'width':(m_nContentWidth + (settings.nTableBorderSz * 2)), 'height':(m_nContentHeight + (settings.nTableBorderSz * 2)) });
$m_Table.show();
InitCaption();
SetCaptionText( true );
SetCaptionPosition();
ShowCaption( HasCaption() );
PositionCloseBtn();
if( settings.bShowPlay )
PositionPlayBtn();
PositionNextAndPrevBtn();
ShowImg();
});
// Split the lightbox tag into its component parts
var optionArray = anchor.rel.split('~#~');
// Reset the m_AnchorArray
if( m_nArraySize > 0 )
m_AnchorArray = [];
m_nArrayPos = 0;
// Load single item
if( optionArray[0] === 'wplightbox' )
{
m_nArraySize = 1;
m_AnchorArray[ m_nArrayPos ] = anchor;
if( settings.bAnimateOpenClose )
GetPositionFromAnchor( $(anchor), true );
Load( anchor, true );
RegisterEvents( true );
$m_Table.show();
}
else // Load multiple items
{
var nCount = 0;
var uniqueArray = new Array();
// Populate the m_AnchorArray
$('a').each( function(i)
{
if( this.rel )
{
var tmpArray = this.rel.split('~#~');
if( optionArray[0] === tmpArray[0] )
{
var bProcessAnchor = false;
if( tmpArray[eRel.UniqueId] === "" )
{
bProcessAnchor = true;
}
else if( uniqueArray[ tmpArray[eRel.UniqueId] ] != 99 )
{
uniqueArray[ tmpArray[eRel.UniqueId] ] = 99;
bProcessAnchor = true;
}
if( bProcessAnchor )
{
m_AnchorArray[ nCount ] = this;
++nCount;
}
}
}
});
m_nArraySize = nCount;
m_bSingleItem = ( m_nArraySize < 2 );
var assocOffset = GetAssociateImageOffset( anchor );
// Find current anchor position
for( nCount = 0; nCount < m_nArraySize; ++nCount )
{
if( m_AnchorArray[ nCount ].href === anchor.href
&& m_AnchorArray[ nCount ].rel === anchor.rel )
{
if( assocOffset === null )
{
m_nArrayPos = nCount;
break;
}
else
{
var anchorOffset = GetAssociateImageOffset( m_AnchorArray[ nCount ] );
if( anchorOffset != null
&& assocOffset.left === anchorOffset.left
&& assocOffset.top === anchorOffset.top )
{
m_nArrayPos = nCount;
break;
}
}
}
}
if( settings.bAnimateOpenClose )
GetPositionFromAnchor( $(m_AnchorArray[ m_nArrayPos ]), true );
Load( m_AnchorArray[ m_nArrayPos ], m_bSingleItem );
RegisterEvents( m_bSingleItem );
$m_Table.show();
}
if( m_bPngHack )
{
$('#ne,#n,#nw,#e,#w,#se,#s,#sw,#cne,#cn,#cnw,#ce,#cw,#cse,#cs,#csw,#wplightbox_closediv,#wplightbox_nextdiv,#wplightbox_prevdiv').PngHack();
if( settings.bShowPlay && !m_bSingleItem )
$m_PlayDiv.PngHack();
}
};
//--------------------------------------
// Configures next and previous buttons according to mouse over pos
//--------------------------------------
function SetMouseOverPos( nPos )
{
if( !m_bResizing )
{
m_nMouseOverPos = nPos;
switch( m_nMouseOverPos )
{
case eMouseOver.None:
$m_NextDiv.hide();
$m_PrevDiv.hide();
$m_Content.css({ 'cursor':'default' });
break;
case eMouseOver.Next:
$m_NextDiv.show();
$m_PrevDiv.hide();
$m_Content.css({ 'cursor':'pointer' });
break;
case eMouseOver.Prev:
$m_NextDiv.hide();
$m_PrevDiv.show();
$m_Content.css({ 'cursor':'pointer' });
break;
}
}
};
//--------------------------------------
// Get position from objAnchor
//--------------------------------------
function GetPositionFromAnchor( objAnchor, bStart )
{
var span = objAnchor.parent('span');
if( span.size() > 0 ) // If artistic text then extract position from grand-parent div
{
// This works ok as long as WP exports artistic text using
//
// If export format changes then update code below.
var positionDiv = span.parent().parent();
var divOffset = positionDiv.offset();
m_nContentLeft = divOffset.left;
m_nContentTop = divOffset.top;
m_nContentWidth = positionDiv.width();
m_nContentHeight = positionDiv.height();
}
else
{
var img = jQuery( 'img', objAnchor );
if( img.size() < 1 ) // If can't find image, search siblings
{
var parentDiv = $(objAnchor).parent('div');
if( parentDiv.size() > 0 )
img = jQuery( 'img', parentDiv );
}
if( img.size() > 0 ) // For a standard image, extract position from image coords
{
var imgOffset = img.offset();
m_nContentLeft = imgOffset.left;
m_nContentTop = imgOffset.top;
m_nContentWidth = img.width();
m_nContentHeight = img.height();
}
else // Else use raw anchor coords
{
var anchorOffset = objAnchor.offset();
m_nContentLeft = anchorOffset.left;
m_nContentTop = anchorOffset.top;
m_nContentWidth = objAnchor.width();
m_nContentHeight = objAnchor.height();
}
}
if( bStart )
{
$m_Table.css({ 'left':(m_nContentLeft - settings.nTableBorderSz), 'top':(m_nContentTop - settings.nTableBorderSz), 'width':(m_nContentWidth + (settings.nTableBorderSz * 2)), 'height':(m_nContentHeight + (settings.nTableBorderSz * 2)) });
}
}
//--------------------------------------
// Loads content from objAnchor
//--------------------------------------
function Load( objAnchor, bSingleItem )
{
var bItemLoaded = false;
m_bSingleItem = bSingleItem;
var objArray = objAnchor.rel.split('~#~');
if( objArray.length > 1 )
m_strCaption = objArray[eRel.Caption];
else
m_strCaption = '';
m_strSource = objAnchor.href;
if( !m_strSource.length )
{
// If not a standard
// extract image url from the area's href
// First attempt to find a child area
var childArea = jQuery( 'area', objAnchor );
if( childArea.size() > 0 )
{
jQuery.each( childArea, function(){
m_strSource = this.href;
if( m_strSource.length > 0 )
return false;
});
}
else
{
// Failed to find child area, find parent area
var parentDiv = $(objAnchor).parent('div');
if( parentDiv.size() > 0 )
{
var area = jQuery( 'area', parentDiv );
if( area.size() > 0 )
m_strSource = area[0].href;
}
}
}
SetContentToImage();
var urlType = m_strSource.toLowerCase().slice( m_strSource.lastIndexOf( '.' ) );
m_nContentType = eContent.Iframe; // Use Iframe as default content
switch( urlType )
{
case '.jpg':
case '.jpeg':
case '.png':
case '.gif':
case '.bmp':
m_nContentType = eContent.Image;
break;
case '.swf':
m_nContentType = eContent.Flash;
break;
case '.mov':
m_nContentType = eContent.QuickTime;
break;
}
if( m_nContentType != eContent.Image )
GetRelDimensions( objAnchor, m_nContentType );
HideControls();
if( m_nContentType == eContent.Image )
{
var image = new Image();
image.onload = function()
{
bItemLoaded = true;
image.onload = null;
StoreOldDimensions();
m_nContentWidth = image.width;
m_nContentHeight = image.height;
if( settings.nCaptionType == eCaption.ExternalDivTop )
{
SetCaptionText( true );
SetCaptionPosition();
}
m_nContentLeft = GetContentLeft();
m_nContentTop = GetContentTop();
StartResize();
};
image.src = m_strSource;
}
else
{
StartResize();
}
};
//--------------------------------------
// Displays new image
//--------------------------------------
function ShowImg()
{
StopResize();
switch( m_nContentType )
{
case eContent.Image:
$m_ContentContainer.append( '
' );
break;
case eContent.Iframe:
$m_ContentContainer.append( '' );
break;
case eContent.QuickTime:
{
var strObject = '';
$m_ContentContainer.append( strObject );
StopPlayTimer();
}
break;
case eContent.Flash:
{
if( DetectFlashVer( 8, 0, 0 ) )
{
var strFlashObject = '';
$m_ContentContainer.append( strFlashObject );
}
else
{
$m_ContentContainer.append( 'An old version of the Flash plugin was detected. Please upgrade your Flash plugin.<\/a><\/strong><\/div>' );
}
StopPlayTimer();
}
break;
}
$m_Content.remove();
$m_Content = $('#wplightbox_content');
$m_Content.attr({ 'src':m_strSource });
$m_Content.animate( { opacity:1.0 }, 10, function()
{
$m_Content.attr({ 'width':m_nContentWidth, 'height':m_nContentHeight });
$m_ContentContainer.animate( { 'opacity':1.0, '-moz-opacity':1.0, 'filter:alpha:opacity':100 }, 100, function()
{
m_bChangingContent = false;
PositionCloseBtn();
$m_CloseDiv.show();
if( !m_bSingleItem )
{
if( settings.bShowPlay )
{
PositionPlayBtn();
$m_PlayDiv.show();
}
PositionNextAndPrevBtn();
$m_NextDiv.show();
$m_PrevDiv.show();
}
});
});
ShowCaption( HasCaption() )
};
//--------------------------------------
// Extracts dimensions from 'rel' attribute of anchor
//--------------------------------------
function GetRelDimensions( objAnchor, nContentType )
{
if( objAnchor )
{
StoreOldDimensions();
var relArray = objAnchor.rel.split('~#~');
// Read in rel width if it has been set
if( relArray[eRel.Width] )
m_nContentWidth = eval( relArray[eRel.Width] );
else
m_nContentWidth = m_nDefaultWidth;
// Read in rel height if it has been set
if( relArray[eRel.Height] )
m_nContentHeight = eval( relArray[eRel.Height] );
else
m_nContentHeight = m_nDefaultHeight;
// Update content position relative to new size
m_nContentLeft = GetContentLeft();
m_nContentTop = GetContentTop();
}
};
//--------------------------------------
// Start resize animation timer
//--------------------------------------
function StartResize()
{
if( !m_bResizing )
{
m_bResizing = true;
m_nResizeStep = 0;
m_nResizeTimerId = setInterval( OnResize, 12 );
}
};
//--------------------------------------
// Switches main content to an image
//--------------------------------------
function SetContentToImage()
{
if( m_nContentType != eContent.Image )
{
$m_Content.remove();
$m_ContentContainer.append('');
$m_Content = $('#wplightbox_content');
}
};
//--------------------------------------
// Stop resize animation timer
//--------------------------------------
function StopResize()
{
if( m_bResizing )
{
m_bResizing = false;
clearInterval( m_nResizeTimerId );
}
};
//--------------------------------------
// Update resize animation
//--------------------------------------
function OnResize()
{
if( !settings.bAnimateOpenClose )
m_nResizeStep = 14;
m_nResizeStep += 1;
var nProgress = ( m_nResizeStep / 15 );
var nTop = Math.round( m_nOldContentTop + ( m_nContentTop - m_nOldContentTop ) * nProgress );
var nLeft = Math.round( m_nOldContentLeft + ( m_nContentLeft - m_nOldContentLeft ) * nProgress );
var nWidth = Math.round( m_nOldContentWidth + ( m_nContentWidth - m_nOldContentWidth ) * nProgress );
var nHeight = Math.round( m_nOldContentHeight + ( m_nContentHeight - m_nOldContentHeight ) * nProgress );
var nTableLeft = nLeft - settings.nTableBorderSz;
var nTableTop = nTop - settings.nTableBorderSz;
var nTableWidth = nWidth + ( settings.nTableBorderSz * 2 );
var nTableHeight = nHeight + ( settings.nTableBorderSz * 2 );
$m_Table.css({ 'left':nTableLeft, 'top':nTableTop, 'width':nTableWidth, 'height':nTableHeight });
if( m_nResizeStep >= 15 )
{
if( m_bClosing )
Close();
else
ShowImg();
}
};
//--------------------------------------
// Starts play timer
//--------------------------------------
function StartPlayTimer()
{
if( !m_bPlaying )
{
m_bPlaying = true;
if( settings.bShowToolTip )
$m_PlayDiv.attr({ 'title':settings.strPauseToolTip });
if( m_bPngHack )
$m_PlayDiv.ImgPngHack( settings.pauseBtnSrc );
else
$m_PlayDiv.css({ 'backgroundImage':'url(' + settings.pauseBtnSrc + ')' });
OnPlayTimer();
m_nPlayTimerId = setInterval( OnPlayTimer, settings.nPlayPeriod );
}
};
//--------------------------------------
// Stop play timer
//--------------------------------------
function StopPlayTimer()
{
if( m_bPlaying )
{
m_bPlaying = false;
if( settings.bShowToolTip )
$m_PlayDiv.attr({ 'title':settings.strPlayToolTip });
if( m_bPngHack )
$m_PlayDiv.ImgPngHack( settings.playBtnSrc );
else
$m_PlayDiv.css({ 'backgroundImage':'url(' + settings.playBtnSrc + ')' });
clearInterval( m_nPlayTimerId );
}
};
//--------------------------------------
// Updates play
//--------------------------------------
function OnPlayTimer()
{
Next( false );
};
//--------------------------------------
// Close wp lightbox
//--------------------------------------
function HideControls()
{
$m_Content.attr({ 'src':settings.loadBtnSrc, 'width':settings.nLoadBtnSz, 'height':settings.nLoadBtnSz });
$m_ContentContainer.css({ 'opacity':settings.nContentOpacity, '-moz-opacity':settings.nContentOpacity, 'filter:alpha:opacity':( settings.nContentOpacity * 100 ) });
$m_CloseDiv.hide();
ShowCaption( false );
if( !m_bSingleItem )
{
SetMouseOverPos( eMouseOver.None );
if( settings.bShowPlay )
$m_PlayDiv.hide();
}
}
//--------------------------------------
// Close wp lightbox
//--------------------------------------
function StartClose()
{
if( !m_bClosing )
{
m_bClosing = true;
if( settings.bAnimateOpenClose )
{
HideControls();
StoreOldDimensions();
SetContentToImage();
GetPositionFromAnchor( $(m_AnchorArray[ m_nArrayPos ]), false );
StartResize();
}
else
{
Close();
}
}
}
//--------------------------------------
// Close wp lightbox
//--------------------------------------
function Close()
{
if( settings.bAnimateOpenClose )
StopResize();
m_bClosing = false;
$(document).unbind('keyup');
$(window).unbind('resize');
$("#wplightbox_bkgrnd").unbind("click");
$("#wplightbox_close").unbind("click");
if( $m_CaptionContainer )
{
$m_CaptionContainer.remove();
$m_CaptionContainer = null;
}
$m_Table.remove();
$m_CloseDiv.remove();
if( !m_bSingleItem )
{
$("#wplightbox_next").unbind("click");
$("#wplightbox_prev").unbind("click");
$m_NextDiv.remove();
$m_PrevDiv.remove();
if( settings.bShowPlay )
{
StopPlayTimer();
$m_PlayDiv.unbind("click");
$m_PlayDiv.remove();
}
}
if( settings.bShowTranspBkgrndDiv )
$m_BackgroundDiv.animate({ 'opacity':0.0, '-moz-opacity':0.0, 'filter:alpha:opacity':0 }, 300, function() { $('#wplightbox_bkgrnd').remove(); m_nContentWidth = 200; m_nContentHeight = 200; });
$m_Table = null;
$m_CloseDiv = null;
$m_NextDiv = null;
$m_PrevDiv = null;
$m_PlayDiv = null;
$m_BackgroundDiv = null;
};
//--------------------------------------
// Move to next item
//--------------------------------------
function Next( bStopPlayTimer )
{
if( !m_bChangingContent )
{
if( bStopPlayTimer )
StopPlayTimer();
m_bChangingContent = true;
++m_nArrayPos;
if( m_nArrayPos >= m_nArraySize )
m_nArrayPos = 0;
Load( m_AnchorArray[ m_nArrayPos ], false );
}
};
//--------------------------------------
// Move to previous item
//--------------------------------------
function Prev()
{
if( !m_bChangingContent )
{
StopPlayTimer();
m_bChangingContent = true;
--m_nArrayPos;
if( m_nArrayPos < 0 )
m_nArrayPos = m_nArraySize - 1;
Load( m_AnchorArray[ m_nArrayPos ], false );
}
};
//--------------------------------------
// Register keyboard, mouse hover and mouse click events
//--------------------------------------
function RegisterEvents( bSingleItem )
{
$(document).bind('keyup', function(e)
{
if(e == null) keycode = event.keyCode; // IE
else keycode = e.which; // Mozilla
if( bSingleItem )
{
if( keycode == 27 )
StartClose();
}
else
{
switch( keycode )
{
case 27:
StartClose();
break;
case 190:
case 39:
Next( true );
break;
case 188:
case 37:
Prev();
break;
}
}
});
$m_CloseDiv.click( function(){ StartClose(); } );
$m_CloseDiv.hover(function() { if( m_bPngHack ) $(this).ImgPngHack( settings.closeOverBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.closeOverBtnSrc + ')' }); }, function() { if( m_bPngHack ) $(this).ImgPngHack( settings.closeBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.closeBtnSrc + ')' }); });
if( !bSingleItem )
{
if( settings.bShowPlay && !m_bSingleItem )
{
$m_PlayDiv.click( function()
{
if( !m_bPlaying )
StartPlayTimer();
else
StopPlayTimer();
});
}
$m_PrevDiv.click( function(){ Prev(); } );
$m_NextDiv.click( function(){ Next( true ); } );
$m_PrevDiv.hover(function() { if( m_bPngHack ) $(this).ImgPngHack( settings.prevOverBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.prevOverBtnSrc + ')' }); }, function() { if( m_bPngHack ) $(this).ImgPngHack( settings.prevBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.prevBtnSrc + ')' }); });
$m_NextDiv.hover(function() { if( m_bPngHack ) $(this).ImgPngHack( settings.nextOverBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.nextOverBtnSrc + ')' }); }, function() { if( m_bPngHack ) $(this).ImgPngHack( settings.nextBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.nextBtnSrc + ')' }); });
if( settings.bShowPlay )
{
$m_PlayDiv.hover(function()
{
if( m_bPlaying ) { if( m_bPngHack ) $(this).ImgPngHack( settings.pauseOverBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.pauseOverBtnSrc + ')' }); }
else { if( m_bPngHack ) $(this).ImgPngHack( settings.playOverBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.playOverBtnSrc + ')' }); }
},
function()
{
if( m_bPlaying ) { if( m_bPngHack ) $(this).ImgPngHack( settings.pauseBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.pauseBtnSrc + ')' }); }
else { if( m_bPngHack ) $(this).ImgPngHack( settings.playBtnSrc ); else $(this).css({ 'backgroundImage':'url(' + settings.playBtnSrc + ')' }); }
});
}
}
};
//--------------------------------------
// Positions next and previous buttons
//--------------------------------------
function PositionNextAndPrevBtn()
{
var nTopPos = m_nContentTop + ( m_nContentHeight / 2 ) - ( settings.nNextBtnSz / 2 );
$m_NextDiv.css({ 'left':( m_nContentLeft + m_nContentWidth - 3 + settings.nBtnOffset ), 'top': nTopPos });
$m_PrevDiv.css({ 'left':( m_nContentLeft - settings.nNextBtnSz - settings.nBtnOffset ), 'top': nTopPos });
};
//--------------------------------------
// Positions close button
//--------------------------------------
function PositionCloseBtn()
{
var nTop = m_nContentTop - settings.nNextBtnSz - settings.nBtnOffset;
if( settings.nCaptionType == eCaption.ExternalDivTop && HasCaption() )
nTop -= $m_CaptionContainer.height();
$m_CloseDiv.css({ 'left':( m_nContentLeft + m_nContentWidth - settings.nNextBtnSz ), 'top':nTop });
}
//--------------------------------------
// Positions play button
//--------------------------------------
function PositionPlayBtn()
{
$m_PlayDiv.css({ 'left':( m_nContentLeft + m_nContentWidth - ( settings.nPlayBtnSz + settings.nPlayBtnOffset ) ), 'top':( m_nContentTop + m_nContentHeight - ( settings.nPlayBtnSz + settings.nPlayBtnOffset ) ) });
};
//--------------------------------------
// Gets left position
//--------------------------------------
function GetContentLeft()
{
return Math.max( 0, ( $(window).width() - m_nContentWidth ) / 2 );
};
//--------------------------------------
// Gets top position
//--------------------------------------
function GetContentTop()
{
if( settings.nCaptionType == eCaption.ExternalDivTop )
{
if( $m_CaptionContainer && HasCaption() )
{
var nCaptionHt = GetCaptionHeight();
return Math.max( ( settings.nNextBtnSz + settings.nBtnOffset + GetCaptionHeight() ), ( GetPageScrollY() + ( Math.min( ( $(window).height() / 10 ) + nCaptionHt, ( ( $(window).height() - ( m_nContentHeight + 20 - nCaptionHt ) ) / 2 ) ) ) ) );
}
else
return Math.max( ( settings.nNextBtnSz + settings.nBtnOffset ), ( GetPageScrollY() + ( Math.min( ( $(window).height() / 10 ) + ( ( settings.nTableBorderSz * 2 ) + m_nCaptionHeight ), ( ( $(window).height() - ( m_nContentHeight + 20 + ( ( settings.nTableBorderSz * 2 ) + m_nCaptionHeight ) ) ) / 2 ) ) ) ) );
}
else
{
return Math.max( ( settings.nNextBtnSz + settings.nBtnOffset ), ( GetPageScrollY() + ( Math.min( ( $(window).height() / 10 ), ( ( $(window).height() - ( m_nContentHeight + 20 ) ) / 2 ) ) ) ) );
}
};
//--------------------------------------
// Gets page width
//--------------------------------------
function GetPageWidth()
{
var nPageWidth = ( m_nBrowser == eBrowser.Msie ) ? $(window).width() : Math.max( $(window).width(), $(document).width() );
nPageWidth = Math.max( nPageWidth, ( m_nContentWidth + 40 ) );
return nPageWidth;
};
//--------------------------------------
// Gets page height
//--------------------------------------
function GetPageHeight()
{
var nPageHeight = ( m_nBrowser == eBrowser.Msie ) ? $(document).height() : Math.max( $(window).height(), $(document).height() );
nPageHeight = Math.max( nPageHeight, ( GetContentTop() + m_nContentHeight + 100 ) );
return nPageHeight;
};
//--------------------------------------
// Gets page scroll values
//--------------------------------------
function GetPageScrollY()
{
var yScroll = 0;
if( window.pageYOffset )
yScroll = window.pageYOffset;
else if( document.body && document.body.scrollTop )
yScroll = document.body.scrollTop;
else if( document.documentElement && document.documentElement.scrollTop )
yScroll = document.documentElement.scrollTop;
else if( window.scrollY )
yScroll = window.scrollY;
return yScroll;
};
//--------------------------------------
// Records old content dimensions
//--------------------------------------
function StoreOldDimensions()
{
m_nOldContentWidth = m_nContentWidth;
m_nOldContentHeight = m_nContentHeight;
m_nOldContentTop = m_nContentTop;
m_nOldContentLeft = m_nContentLeft;
};
//--------------------------------------
// Performs png hack
//--------------------------------------
$.fn.PngHack = function()
{
this.each(function ()
{
var img = $(this).css('backgroundImage');
if( img.match(/^url\((.*\.png)\)$/i) )
{
img = RegExp.$1;
$(this).css(
{
'backgroundImage': 'none',
'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + img + "', sizingMethod=" + ($(this).css('background-repeat') == 'no-repeat' ? 'crop' : 'scale') + ")"
});
}
});
};
//--------------------------------------
// Performs png hack
//--------------------------------------
$.fn.ImgPngHack = function( strImgUrl )
{
$(this).css(
{
'backgroundImage': 'none',
'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader( src='" + strImgUrl + "' )"
});
};
//--------------------------------------
// Initialise captions
//--------------------------------------
function InitCaption()
{
// If caption container already initialised then don't continue
if( $m_CaptionContainer )
return;
switch( settings.nCaptionType )
{
case eCaption.ExternalDivBottom:
case eCaption.ExternalDivTop:
{
var strCaptionTable = '\
\
\
| \
| \
| \
\
\
| \
Caption | \
| \
\
\
| \
| \
| \
\
\
';
// Add caption table
$('body').append( strCaptionTable );
$m_CaptionContainer = $('#wplightbox_captiontable');
$m_Caption = $('#wplightbox_caption');
$('#wplightbox_captioncol').css({ 'opacity':settings.nCaptionOpacity, '-moz-opacity':settings.nCaptionOpacity, 'filter:alpha:opacity':( settings.nCaptionOpacity * 100 ) });
}
break;
};
}
//--------------------------------------
// Sets caption position
//--------------------------------------
function SetCaptionPosition()
{
switch( settings.nCaptionType )
{
case eCaption.ExternalDivBottom:
$m_CaptionContainer.css({ 'left':(m_nContentLeft - settings.nTableBorderSz), 'top':( m_nContentTop + settings.nCaptionOffset + m_nContentHeight ), 'width':(m_nContentWidth + (settings.nTableBorderSz * 2)) });
break;
case eCaption.ExternalDivTop:
$m_CaptionContainer.css({ 'left':(m_nContentLeft - settings.nTableBorderSz), 'width':(m_nContentWidth + (settings.nTableBorderSz * 2)) });
var nContentTop = GetContentTop();
var nCaptionHeight = GetCaptionHeight();
$m_CaptionContainer.css({ 'top':( m_nContentTop - ( settings.nCaptionOffset + nCaptionHeight ) ) });
break;
};
}
//--------------------------------------
// Returns true if content item has a caption
//--------------------------------------
function HasCaption()
{
if( settings.nCaptionType == eCaption.NoCaption )
return false;
if( m_strCaption && m_strCaption.length > 0 )
return true;
if( settings.bCaptionCount && !m_bSingleItem )
return true;
return false;
}
//--------------------------------------
// Sets caption position
//--------------------------------------
function SetCaptionText( bShow )
{
if( $m_Caption )
{
if( bShow ) // Apply caption text
{
if( settings.bCaptionCount && !m_bSingleItem )
{
var nImagePos = m_nArrayPos + 1;
var strCount = nImagePos + '/' + m_nArraySize + ' ';
$m_Caption.text( strCount + m_strCaption );
}
else
{
$m_Caption.text( m_strCaption );
}
}
else // Else clear caption text
{
$m_Caption.text( '' );
}
}
}
//--------------------------------------
// Displays or hides lightbox caption
//--------------------------------------
function ShowCaption( bShow )
{
switch( settings.nCaptionType )
{
case eCaption.ExternalDivBottom:
case eCaption.ExternalDivTop:
{
if( $m_CaptionContainer )
{
if( bShow )
{
SetCaptionText( true );
SetCaptionPosition();
$m_CaptionContainer.show();
}
else
{
SetCaptionText( false );
$m_CaptionContainer.hide();
}
}
}
break;
};
}
//--------------------------------------
// Returns caption height
//--------------------------------------
function GetCaptionHeight()
{
if( m_nBrowser == eBrowser.Msie )
{
return $m_CaptionContainer.height();
}
else
{
// This fixes a bug in the remaining browsers where the height of the
// caption container is only correct when the caption is displayed.
$m_CaptionContainer.show();
var nCaptionHeight = $m_CaptionContainer.height();
$m_CaptionContainer.hide();
return nCaptionHeight;
}
}
//--------------------------------------
// Returns image offset associated with objAnchor
//--------------------------------------
function GetAssociateImageOffset( anchor )
{
var img = jQuery( 'img', anchor );
if( img.size() < 1 ) // If can't find image, search siblings
{
var parentDiv = $(anchor).parent('div');
if( parentDiv.size() > 0 )
img = jQuery( 'img', parentDiv );
}
if( img.size() > 0 )
return img.offset();
return null;
}
};
})(jQuery);