$title

+EOD + +if (! -d $thumbdir) { + mkdir($thumbdir) or die("cannot create $thumbdir: $!"); +} + +opendir(my $dirhandle, $directory) or die("Cannot open directory $directory: $!"); + +foreach my $file (readdir($dirhandle)) { + if ($file =~ / \. ( png | jp e? g ) $ /ix) { + push(@files, $file); + } +} + +closedir($dirhandle); + +@files = sort { lc($a) cmp lc($b) } @files; + +if ($create_archive) { + print "Adding files to tar archive\n"; + $tar->add_files(@files); +} + +print "Generating thumbnails [ - cached | + generated ]\n"; + +foreach my $file (@files) { + my $thumb; + + if (defined($css_source)) { + print {$index} '

'; + } + else { + printf {$index} ( + '

', + 'text-align: center', + 'font-size: 80%', + 'float: left', + $thumb_max_dim * $thumb_spacing, + ($thumb_max_dim * $thumb_spacing) + ($thumb_no_names ? 0 : 10), + ); + } + + print {$index} " $\"$file\"$ \n"; + + if (not $thumb_no_names) { + print {$index} "
\n"; + + if ($css_source) { + print {$index} + "${file}"; + } + else { + printf {$index} ( + '%s', + 'text-decoration: none;', + $file, + $file, + ); + } + } + + print {$index} "

\n"; + print_progress; + $number++; + + if (-e "$thumbdir/$file") { + print '-'; + next; + } + + my $image = Image::Imlib2->load($file); + ($dx, $dy) = ($image->width, $image->height); + + if ($dx > $thumb_max_dim or $dy > $thumb_max_dim) { + if ($dx > $dy) { + $thumb = $image->create_scaled_image($thumb_max_dim, 0); + } + else { + $thumb = $image->create_scaled_image(0, $thumb_max_dim); + } + } + else { + $thumb = $image; + } + + $thumb->set_quality($thumb_quality); + $thumb->save("$thumbdir/$file"); + + chmod(DEFAULT_FILEMODE, "$thumbdir/$file"); + print '+'; +} +print "\n"; + +if ($create_archive) { + print "Writing tar archive to disk\n"; + $tar->write('images.tar', undef, (split(qr{/}, getcwd))[-1]); + + print $index "

archive\n"; +} + +print $index <<'EOD'; +

+ +EOD + +close($index) or die("Cannot close $indexfile: $!"); +chmod(DEFAULT_FILEMODE, $indexfile); + + + +=head1 NAME + +dthumb - Generate Thumbnails + Index for a set of images + +=head1 SYNOPSIS + +B [I] [I] + +=head1 DESCRIPTION + +dthumb will create an F with a list (thumbnails) of +all images found if I; the thumbnails will link to the images. + +The F file will always be created in I. +The thumbnails will be saved in F<.thumbs>, also in I. +If I is not specified, the current directory is used. + +Note that only the images in the directory itself will be processed, recursion +is not supported. + +=head1 OPTIONS + +=over + +=item B<-x>, B<--archive> + +Create (and link) an "image.tar" archive containing all full-size image files. +All but the last directories in the files' path are stripped, besides that the +directory structure is preserved. So, if you run dthumb -x in +.../mydir/, the archive will contain mydir/1.jpg, mydir/2.jpg etc. + +=item B<-c>, B<--css> I + +Use I for css definitions + +=item B<-n>, B<--no-names> + +Do not show image names below thumbnails + +=item B<-d>, B<--size> I + +Maximum thumbnail size (either width or height). Defaults to 200 + +=item B<-s>, B<--spacing> I + +Use I as spacing factor. +The size of each image element (image + possible border around it) is the +number of pixels (see --size) times I. +So for B<1.1> you have a small border around each image, for B<1.0> you have +no border at all, etc. + +=item B<-t>, B<--title> I + +Use I<title> as <title> for the XHTML output + +=item B<-q>, B<--quality> I<int> + +Set thumbnail quality. +Accepts values between 0 and 100, where 100 is the highest possible quality + +=back + +=head1 EXIT STATUS + +Zero upon success, non-zero otherwise. + +=head1 CONFIGURATION + +None. + +=head1 DEPENDENCIES + +B<dthumb> requires the Image::Imlib2 perl module. + +=head1 BUGS AND LIMITATIONS + +There is no detection for changed images, the thumbnails of deleted images are +not removed. + +=head1 AUTHOR + +Copyright (C) 2009, 2010 by Daniel Friesel E<lt>derf@chaosdorf.deE<gt> + +The lightbox code is (C) by Lokesh Dhakar +E<lt>http://huddletogether.com/projects/lightbox/E<gt>, licensed under +CC-BY-2.5 + +=head1 LICENSE + + 0. You just DO WHAT THE FUCK YOU WANT TO + + +=cut + +__DATA__ +/* + Lightbox JS: Fullsize Image Overlays + by Lokesh Dhakar - http://www.huddletogether.com + + For more information on this script, visit: + http://huddletogether.com/projects/lightbox/ + + Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/ + (basically, do anything you want, just leave my name and link) + + Table of Contents + ----------------- + Configuration + + Functions + - getPageScroll() + - getPageSize() + - pause() + - getKey() + - listenKey() + - showLightbox() + - hideLightbox() + - initLightbox() + - addLoadEvent() + + Function Calls + - addLoadEvent(initLightbox) + +*/ + + + +// +// Configuration +// + +// If you would like to use a custom loading image or close button reference them in the next two lines. +var loadingImage = 'loading.gif'; +var closeButton = 'close.gif'; + + + + + +// +// getPageScroll() +// Returns array with x,y page scroll values. +// Core code from - quirksmode.org +// +function getPageScroll(){ + + var yScroll; + + if (self.pageYOffset) { + yScroll = self.pageYOffset; + } else if (document.documentElement && document.documentElement.scrollTop){ // Explorer 6 Strict + yScroll = document.documentElement.scrollTop; + } else if (document.body) {// all other Explorers + yScroll = document.body.scrollTop; + } + + arrayPageScroll = new Array('',yScroll) + return arrayPageScroll; +} + + + +// +// getPageSize() +// Returns array with page width, height and window width, height +// Core code from - quirksmode.org +// Edit for Firefox by pHaez +// +function getPageSize(){ + + var xScroll, yScroll; + + if (window.innerHeight && window.scrollMaxY) { + xScroll = document.body.scrollWidth; + yScroll = window.innerHeight + window.scrollMaxY; + } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac + xScroll = document.body.scrollWidth; + yScroll = document.body.scrollHeight; + } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari + xScroll = document.body.offsetWidth; + yScroll = document.body.offsetHeight; + } + + var windowWidth, windowHeight; + if (self.innerHeight) { // all except Explorer + windowWidth = self.innerWidth; + windowHeight = self.innerHeight; + } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode + windowWidth = document.documentElement.clientWidth; + windowHeight = document.documentElement.clientHeight; + } else if (document.body) { // other Explorers + windowWidth = document.body.clientWidth; + windowHeight = document.body.clientHeight; + } + + // for small pages with total height less then height of the viewport + if(yScroll < windowHeight){ + pageHeight = windowHeight; + } else { + pageHeight = yScroll; + } + + // for small pages with total width less then width of the viewport + if(xScroll < windowWidth){ + pageWidth = windowWidth; + } else { + pageWidth = xScroll; + } + + + arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) + return arrayPageSize; +} + + +// +// pause(numberMillis) +// Pauses code execution for specified time. Uses busy code, not good. +// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602 +// +function pause(numberMillis) { + var now = new Date(); + var exitTime = now.getTime() + numberMillis; + while (true) { + now = new Date(); + if (now.getTime() > exitTime) + return; + } +} + +// +// getKey(key) +// Gets keycode. If 'x' is pressed then it hides the lightbox. +// + +function getKey(e){ + if (e == null) { // ie + keycode = event.keyCode; + } else { // mozilla + keycode = e.which; + } + key = String.fromCharCode(keycode).toLowerCase(); + + if(key == 'x'){ hideLightbox(); } +} + + +// +// listenKey() +// +function listenKey () { document.onkeypress = getKey; } + + +// +// showLightbox() +// Preloads images. Pleaces new image in lightbox then centers and displays. +// +function showLightbox(objLink) +{ + // prep objects + var objOverlay = document.getElementById('overlay'); + var objLightbox = document.getElementById('lightbox'); + var objCaption = document.getElementById('lightboxCaption'); + var objImage = document.getElementById('lightboxImage'); + var objLoadingImage = document.getElementById('loadingImage'); + var objLightboxDetails = document.getElementById('lightboxDetails'); + + + var arrayPageSize = getPageSize(); + var arrayPageScroll = getPageScroll(); + + // center loadingImage if it exists + if (objLoadingImage) { + objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px'); + objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px'); + objLoadingImage.style.display = 'block'; + } + + // set height of Overlay to take up whole page and show + objOverlay.style.height = (arrayPageSize[1] + 'px'); + objOverlay.style.display = 'block'; + + // preload image + imgPreload = new Image(); + + imgPreload.onload=function(){ + objImage.src = objLink.href; + + // center lightbox and make sure that the top and left values are not negative + // and the image placed outside the viewport + var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2); + var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2); + + objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px"; + objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px"; + + + objLightboxDetails.style.width = imgPreload.width + 'px'; + + if(objLink.getAttribute('title')){ + objCaption.style.display = 'block'; + //objCaption.style.width = imgPreload.width + 'px'; + objCaption.innerHTML = objLink.getAttribute('title'); + } else { + objCaption.style.display = 'none'; + } + + // A small pause between the image loading and displaying is required with IE, + // this prevents the previous image displaying for a short burst causing flicker. + if (navigator.appVersion.indexOf("MSIE")!=-1){ + pause(250); + } + + if (objLoadingImage) { objLoadingImage.style.display = 'none'; } + + // Hide select boxes as they will 'peek' through the image in IE + selects = document.getElementsByTagName("select"); + for (i = 0; i != selects.length; i++) { + selects[i].style.visibility = "hidden"; + } + + + objLightbox.style.display = 'block'; + + // After image is loaded, update the overlay height as the new image might have + // increased the overall page height. + arrayPageSize = getPageSize(); + objOverlay.style.height = (arrayPageSize[1] + 'px'); + + // Check for 'x' keypress + listenKey(); + + return false; + } + + imgPreload.src = objLink.href; + +} + + + + + +// +// hideLightbox() +// +function hideLightbox() +{ + // get objects + objOverlay = document.getElementById('overlay'); + objLightbox = document.getElementById('lightbox'); + + // hide lightbox and overlay + objOverlay.style.display = 'none'; + objLightbox.style.display = 'none'; + + // make select boxes visible + selects = document.getElementsByTagName("select"); + for (i = 0; i != selects.length; i++) { + selects[i].style.visibility = "visible"; + } + + // disable keypress listener + document.onkeypress = ''; +} + + + + +// +// initLightbox() +// Function runs on window load, going through link tags looking for rel="lightbox". +// These links receive onclick events that enable the lightbox display for their targets. +// The function also inserts html markup at the top of the page which will be used as a +// container for the overlay pattern and the inline image. +// +function initLightbox() +{ + + if (!document.getElementsByTagName){ return; } + var anchors = document.getElementsByTagName("a"); + + // loop through all anchor tags + for (var i=0; i<anchors.length; i++){ + var anchor = anchors[i]; + + if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "lightbox")){ + anchor.onclick = function () {showLightbox(this); return false;} + } + } + + // the rest of this code inserts html at the top of the page that looks like this: + // + // <div id="overlay"> + // <a href="#" onclick="hideLightbox(); return false;"><img id="loadingImage" /></a> + // </div> + // <div id="lightbox"> + // <a href="#" onclick="hideLightbox(); return false;" title="Click anywhere to close image"> + // <img id="closeButton" /> + // <img id="lightboxImage" /> + // </a> + // <div id="lightboxDetails"> + // <div id="lightboxCaption"></div> + // <div id="keyboardMsg"></div> + // </div> + // </div> + + var objBody = document.getElementsByTagName("body").item(0); + + // create overlay div and hardcode some functional styles (aesthetic styles are in CSS file) + var objOverlay = document.createElement("div"); + objOverlay.setAttribute('id','overlay'); + objOverlay.onclick = function () {hideLightbox(); return false;} + objOverlay.style.display = 'none'; + objOverlay.style.position = 'absolute'; + objOverlay.style.top = '0'; + objOverlay.style.left = '0'; + objOverlay.style.zIndex = '90'; + objOverlay.style.width = '100%'; + objBody.insertBefore(objOverlay, objBody.firstChild); + + var arrayPageSize = getPageSize(); + var arrayPageScroll = getPageScroll(); + + // preload and create loader image + var imgPreloader = new Image(); + + // if loader image found, create link to hide lightbox and create loadingimage + imgPreloader.onload=function(){ + + var objLoadingImageLink = document.createElement("a"); + objLoadingImageLink.setAttribute('href','#'); + objLoadingImageLink.onclick = function () {hideLightbox(); return false;} + objOverlay.appendChild(objLoadingImageLink); + + var objLoadingImage = document.createElement("img"); + objLoadingImage.src = loadingImage; + objLoadingImage.setAttribute('id','loadingImage'); + objLoadingImage.style.position = 'absolute'; + objLoadingImage.style.zIndex = '150'; + objLoadingImageLink.appendChild(objLoadingImage); + + imgPreloader.onload=function(){}; // clear onLoad, as IE will flip out w/animated gifs + + return false; + } + + imgPreloader.src = loadingImage; + + // create lightbox div, same note about styles as above + var objLightbox = document.createElement("div"); + objLightbox.setAttribute('id','lightbox'); + objLightbox.style.display = 'none'; + objLightbox.style.position = 'absolute'; + objLightbox.style.zIndex = '100'; + objBody.insertBefore(objLightbox, objOverlay.nextSibling); + + // create link + var objLink = document.createElement("a"); + objLink.setAttribute('href','#'); + objLink.setAttribute('title','Click to close'); + objLink.onclick = function () {hideLightbox(); return false;} + objLightbox.appendChild(objLink); + + // preload and create close button image + var imgPreloadCloseButton = new Image(); + + // if close button image found, + imgPreloadCloseButton.onload=function(){ + + var objCloseButton = document.createElement("img"); + objCloseButton.src = closeButton; + objCloseButton.setAttribute('id','closeButton'); + objCloseButton.style.position = 'absolute'; + objCloseButton.style.zIndex = '200'; + objLink.appendChild(objCloseButton); + + return false; + } + + imgPreloadCloseButton.src = closeButton; + + // create image + var objImage = document.createElement("img"); + objImage.setAttribute('id','lightboxImage'); + objLink.appendChild(objImage); + + // create details div, a container for the caption and keyboard message + var objLightboxDetails = document.createElement("div"); + objLightboxDetails.setAttribute('id','lightboxDetails'); + objLightbox.appendChild(objLightboxDetails); + + // create caption + var objCaption = document.createElement("div"); + objCaption.setAttribute('id','lightboxCaption'); + objCaption.style.display = 'none'; + objLightboxDetails.appendChild(objCaption); + + // create keyboard message + var objKeyboardMsg = document.createElement("div"); + objKeyboardMsg.setAttribute('id','keyboardMsg'); + objKeyboardMsg.innerHTML = 'press <a href="#" onclick="hideLightbox(); return false;"><kbd>x</kbd></a> to close'; + objLightboxDetails.appendChild(objKeyboardMsg); + + +} + + + + +// +// addLoadEvent() +// Adds event to window.onload without overwriting currently assigned onload functions. +// Function found at Simon Willison's weblog - http://simon.incutio.com/ +// +function addLoadEvent(func) +{ + var oldonload = window.onload; + if (typeof window.onload != 'function'){ + window.onload = func; + } else { + window.onload = function(){ + oldonload(); + func(); + } + } + +} + + + +addLoadEvent(initLightbox); // run initLightbox onLoad + diff --git a/bin/gen-xhtml-thumbnails b/bin/gen-xhtml-thumbnails deleted file mode 100755 index 6369bb0..0000000 --- a/bin/gen-xhtml-thumbnails +++ /dev/null @@ -1,768 +0,0 @@ -#!/usr/bin/perl -# Copyright © 2009,2010 by Daniel Friesel <derf@derf.homelinux.org> -# License: WTFPL <http://sam.zoy.org/wtfpl> -use strict; -use warnings; - -use constant { - DEFAULT_FILEMODE => oct(644), -}; - -use Archive::Tar; -use Cwd; -use Getopt::Long; -use Image::Imlib2; - - -my $directory = '.'; -my $thumbdir = "$directory/.thumbs"; -my $indexfile = "$directory/index.xhtml"; -my $lightboxfile = "$directory/lightbox.js"; -my $title = ''; -my $css_line = ''; -my $thumb_max_dim = 200; -my $thumb_quality = 75; -my $thumb_spacing = 1.1; -my $thumb_no_names = 0; -my $css_source; -my ($dx, $dy); -my @files; -my $number = 0; -my $create_archive = 0; -my $tar = Archive::Tar->new(); -local $| = 1; - -sub print_progress { - if (($number % 60) == 0) { - if ($number) { - printf(" %4d/%d\n", $number, scalar(@files)); - } - printf('[%3d%%] ', $number * 100 / @files); - } elsif (($number % 10) == 0) { - print ' '; - } - return; -} - -GetOptions( - 'c|css=s' => \$css_source, - 'd|size=i' => \$thumb_max_dim, - 's|spacing=f' => \$thumb_spacing, - 'n|no-names' => \$thumb_no_names, - 't|title=s' => \$title, - 'q|quality=i' => \$thumb_quality, - 'x|archive' => \$create_archive, -); - -if (@ARGV > 0) { - $directory = shift; -} - -if (defined($css_source)) { - $css_line = "<link rel=\"stylesheet\" type=\"text/css\" href=\"$css_source\"/>"; -} - -open(my $lightbox, '>', $lightboxfile) or die("Cannot open $lightboxfile for writing: $!"); -while (my $line = <DATA>) { - print {$lightbox} $line; -} -close($lightbox); - -open(my $index, '>', $indexfile) or die("Cannot open $indexfile for writing: $!"); - -print $index <<"EOD"; -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" - "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> -<head> - <title>$title - - $css_line - - - -

-EOD - -if (! -d $thumbdir) { - mkdir($thumbdir) or die("cannot create $thumbdir: $!"); -} - -opendir(my $dirhandle, $directory) or die("Cannot open directory $directory: $!"); - -foreach my $file (readdir($dirhandle)) { - if ($file =~ / \. ( png | jp e? g ) $ /ix) { - push(@files, $file); - } -} - -closedir($dirhandle); - -@files = sort { lc($a) cmp lc($b) } @files; - -if ($create_archive) { - print "Adding files to tar archive\n"; - $tar->add_files(@files); -} - -print "Generating thumbnails [ - cached | + generated ]\n"; - -foreach my $file (@files) { - my $thumb; - - if (defined($css_source)) { - print {$index} '

'; - } - else { - printf {$index} ( - '

', - 'text-align: center', - 'font-size: 80%', - 'float: left', - $thumb_max_dim * $thumb_spacing, - ($thumb_max_dim * $thumb_spacing) + ($thumb_no_names ? 0 : 10), - ); - } - - print {$index} " $\"$file\"$ \n"; - - if (not $thumb_no_names) { - print {$index} "
\n"; - - if ($css_source) { - print {$index} - "${file}"; - } - else { - printf {$index} ( - '%s', - 'text-decoration: none;', - $file, - $file, - ); - } - } - - print {$index} "

\n"; - print_progress; - $number++; - - if (-e "$thumbdir/$file") { - print '-'; - next; - } - - my $image = Image::Imlib2->load($file); - ($dx, $dy) = ($image->width, $image->height); - - if ($dx > $thumb_max_dim or $dy > $thumb_max_dim) { - if ($dx > $dy) { - $thumb = $image->create_scaled_image($thumb_max_dim, 0); - } - else { - $thumb = $image->create_scaled_image(0, $thumb_max_dim); - } - } - else { - $thumb = $image; - } - - $thumb->set_quality($thumb_quality); - $thumb->save("$thumbdir/$file"); - - chmod(DEFAULT_FILEMODE, "$thumbdir/$file"); - print '+'; -} -print "\n"; - -if ($create_archive) { - print "Writing tar archive to disk\n"; - $tar->write('images.tar', undef, (split(qr{/}, getcwd))[-1]); - - print $index "

archive\n"; -} - -print $index <<'EOD'; -

- -EOD - -close($index) or die("Cannot close $indexfile: $!"); -chmod(DEFAULT_FILEMODE, $indexfile); - - - -=head1 NAME - -gen-xhtml-thumbnails - Generate Thumbnails + Index for a set of images - -=head1 SYNOPSIS - -B [I] [I] - -=head1 DESCRIPTION - -gen-xhtml-thumbnails will create an F with a list (thumbnails) of -all images found if I; the thumbnails will link to the images. - -The F file will always be created in I. -The thumbnails will be saved in F<.thumbs>, also in I. -If I is not specified, the current directory is used. - -Note that only the images in the directory itself will be processed, recursion -is not supported. - -=head1 OPTIONS - -=over - -=item B<-x>, B<--archive> - -Create (and link) an "image.tar" archive containing all full-size image files. -All but the last directories in the files' path are stripped, besides that the -directory structure is preserved. So, if you run gen-xhtml-thumbnails -x in -.../mydir/, the archive will contain mydir/1.jpg, mydir/2.jpg etc. - -=item B<-c>, B<--css> I - -Use I for css definitions - -=item B<-n>, B<--no-names> - -Do not show image names below thumbnails - -=item B<-d>, B<--size> I - -Maximum thumbnail size (either width or height). Defaults to 200 - -=item B<-s>, B<--spacing> I - -Use I as spacing factor. -The size of each image element (image + possible border around it) is the -number of pixels (see --size) times I. -So for B<1.1> you have a small border around each image, for B<1.0> you have -no border at all, etc. - -=item B<-t>, B<--title> I - -Use I<title> as <title> for the XHTML output - -=item B<-q>, B<--quality> I<int> - -Set thumbnail quality. -Accepts values between 0 and 100, where 100 is the highest possible quality - -=back - -=head1 EXIT STATUS - -Zero upon success, non-zero otherwise. - -=head1 CONFIGURATION - -None. - -=head1 DEPENDENCIES - -B<gen-xhtml-thumbnails> requires the Image::Imlib2 perl module. - -=head1 BUGS AND LIMITATIONS - -There is no detection for changed images, the thumbnails of deleted images are -not removed. - -=head1 AUTHOR - -Copyright (C) 2009, 2010 by Daniel Friesel E<lt>derf@chaosdorf.deE<gt> - -The lightbox code is (C) by Lokesh Dhakar -E<lt>http://huddletogether.com/projects/lightbox/E<gt>, licensed under -CC-BY-2.5 - -=head1 LICENSE - - 0. You just DO WHAT THE FUCK YOU WANT TO - - -=cut - -__DATA__ -/* - Lightbox JS: Fullsize Image Overlays - by Lokesh Dhakar - http://www.huddletogether.com - - For more information on this script, visit: - http://huddletogether.com/projects/lightbox/ - - Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/ - (basically, do anything you want, just leave my name and link) - - Table of Contents - ----------------- - Configuration - - Functions - - getPageScroll() - - getPageSize() - - pause() - - getKey() - - listenKey() - - showLightbox() - - hideLightbox() - - initLightbox() - - addLoadEvent() - - Function Calls - - addLoadEvent(initLightbox) - -*/ - - - -// -// Configuration -// - -// If you would like to use a custom loading image or close button reference them in the next two lines. -var loadingImage = 'loading.gif'; -var closeButton = 'close.gif'; - - - - - -// -// getPageScroll() -// Returns array with x,y page scroll values. -// Core code from - quirksmode.org -// -function getPageScroll(){ - - var yScroll; - - if (self.pageYOffset) { - yScroll = self.pageYOffset; - } else if (document.documentElement && document.documentElement.scrollTop){ // Explorer 6 Strict - yScroll = document.documentElement.scrollTop; - } else if (document.body) {// all other Explorers - yScroll = document.body.scrollTop; - } - - arrayPageScroll = new Array('',yScroll) - return arrayPageScroll; -} - - - -// -// getPageSize() -// Returns array with page width, height and window width, height -// Core code from - quirksmode.org -// Edit for Firefox by pHaez -// -function getPageSize(){ - - var xScroll, yScroll; - - if (window.innerHeight && window.scrollMaxY) { - xScroll = document.body.scrollWidth; - yScroll = window.innerHeight + window.scrollMaxY; - } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac - xScroll = document.body.scrollWidth; - yScroll = document.body.scrollHeight; - } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari - xScroll = document.body.offsetWidth; - yScroll = document.body.offsetHeight; - } - - var windowWidth, windowHeight; - if (self.innerHeight) { // all except Explorer - windowWidth = self.innerWidth; - windowHeight = self.innerHeight; - } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode - windowWidth = document.documentElement.clientWidth; - windowHeight = document.documentElement.clientHeight; - } else if (document.body) { // other Explorers - windowWidth = document.body.clientWidth; - windowHeight = document.body.clientHeight; - } - - // for small pages with total height less then height of the viewport - if(yScroll < windowHeight){ - pageHeight = windowHeight; - } else { - pageHeight = yScroll; - } - - // for small pages with total width less then width of the viewport - if(xScroll < windowWidth){ - pageWidth = windowWidth; - } else { - pageWidth = xScroll; - } - - - arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) - return arrayPageSize; -} - - -// -// pause(numberMillis) -// Pauses code execution for specified time. Uses busy code, not good. -// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602 -// -function pause(numberMillis) { - var now = new Date(); - var exitTime = now.getTime() + numberMillis; - while (true) { - now = new Date(); - if (now.getTime() > exitTime) - return; - } -} - -// -// getKey(key) -// Gets keycode. If 'x' is pressed then it hides the lightbox. -// - -function getKey(e){ - if (e == null) { // ie - keycode = event.keyCode; - } else { // mozilla - keycode = e.which; - } - key = String.fromCharCode(keycode).toLowerCase(); - - if(key == 'x'){ hideLightbox(); } -} - - -// -// listenKey() -// -function listenKey () { document.onkeypress = getKey; } - - -// -// showLightbox() -// Preloads images. Pleaces new image in lightbox then centers and displays. -// -function showLightbox(objLink) -{ - // prep objects - var objOverlay = document.getElementById('overlay'); - var objLightbox = document.getElementById('lightbox'); - var objCaption = document.getElementById('lightboxCaption'); - var objImage = document.getElementById('lightboxImage'); - var objLoadingImage = document.getElementById('loadingImage'); - var objLightboxDetails = document.getElementById('lightboxDetails'); - - - var arrayPageSize = getPageSize(); - var arrayPageScroll = getPageScroll(); - - // center loadingImage if it exists - if (objLoadingImage) { - objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px'); - objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px'); - objLoadingImage.style.display = 'block'; - } - - // set height of Overlay to take up whole page and show - objOverlay.style.height = (arrayPageSize[1] + 'px'); - objOverlay.style.display = 'block'; - - // preload image - imgPreload = new Image(); - - imgPreload.onload=function(){ - objImage.src = objLink.href; - - // center lightbox and make sure that the top and left values are not negative - // and the image placed outside the viewport - var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2); - var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2); - - objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px"; - objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px"; - - - objLightboxDetails.style.width = imgPreload.width + 'px'; - - if(objLink.getAttribute('title')){ - objCaption.style.display = 'block'; - //objCaption.style.width = imgPreload.width + 'px'; - objCaption.innerHTML = objLink.getAttribute('title'); - } else { - objCaption.style.display = 'none'; - } - - // A small pause between the image loading and displaying is required with IE, - // this prevents the previous image displaying for a short burst causing flicker. - if (navigator.appVersion.indexOf("MSIE")!=-1){ - pause(250); - } - - if (objLoadingImage) { objLoadingImage.style.display = 'none'; } - - // Hide select boxes as they will 'peek' through the image in IE - selects = document.getElementsByTagName("select"); - for (i = 0; i != selects.length; i++) { - selects[i].style.visibility = "hidden"; - } - - - objLightbox.style.display = 'block'; - - // After image is loaded, update the overlay height as the new image might have - // increased the overall page height. - arrayPageSize = getPageSize(); - objOverlay.style.height = (arrayPageSize[1] + 'px'); - - // Check for 'x' keypress - listenKey(); - - return false; - } - - imgPreload.src = objLink.href; - -} - - - - - -// -// hideLightbox() -// -function hideLightbox() -{ - // get objects - objOverlay = document.getElementById('overlay'); - objLightbox = document.getElementById('lightbox'); - - // hide lightbox and overlay - objOverlay.style.display = 'none'; - objLightbox.style.display = 'none'; - - // make select boxes visible - selects = document.getElementsByTagName("select"); - for (i = 0; i != selects.length; i++) { - selects[i].style.visibility = "visible"; - } - - // disable keypress listener - document.onkeypress = ''; -} - - - - -// -// initLightbox() -// Function runs on window load, going through link tags looking for rel="lightbox". -// These links receive onclick events that enable the lightbox display for their targets. -// The function also inserts html markup at the top of the page which will be used as a -// container for the overlay pattern and the inline image. -// -function initLightbox() -{ - - if (!document.getElementsByTagName){ return; } - var anchors = document.getElementsByTagName("a"); - - // loop through all anchor tags - for (var i=0; i<anchors.length; i++){ - var anchor = anchors[i]; - - if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "lightbox")){ - anchor.onclick = function () {showLightbox(this); return false;} - } - } - - // the rest of this code inserts html at the top of the page that looks like this: - // - // <div id="overlay"> - // <a href="#" onclick="hideLightbox(); return false;"><img id="loadingImage" /></a> - // </div> - // <div id="lightbox"> - // <a href="#" onclick="hideLightbox(); return false;" title="Click anywhere to close image"> - // <img id="closeButton" /> - // <img id="lightboxImage" /> - // </a> - // <div id="lightboxDetails"> - // <div id="lightboxCaption"></div> - // <div id="keyboardMsg"></div> - // </div> - // </div> - - var objBody = document.getElementsByTagName("body").item(0); - - // create overlay div and hardcode some functional styles (aesthetic styles are in CSS file) - var objOverlay = document.createElement("div"); - objOverlay.setAttribute('id','overlay'); - objOverlay.onclick = function () {hideLightbox(); return false;} - objOverlay.style.display = 'none'; - objOverlay.style.position = 'absolute'; - objOverlay.style.top = '0'; - objOverlay.style.left = '0'; - objOverlay.style.zIndex = '90'; - objOverlay.style.width = '100%'; - objBody.insertBefore(objOverlay, objBody.firstChild); - - var arrayPageSize = getPageSize(); - var arrayPageScroll = getPageScroll(); - - // preload and create loader image - var imgPreloader = new Image(); - - // if loader image found, create link to hide lightbox and create loadingimage - imgPreloader.onload=function(){ - - var objLoadingImageLink = document.createElement("a"); - objLoadingImageLink.setAttribute('href','#'); - objLoadingImageLink.onclick = function () {hideLightbox(); return false;} - objOverlay.appendChild(objLoadingImageLink); - - var objLoadingImage = document.createElement("img"); - objLoadingImage.src = loadingImage; - objLoadingImage.setAttribute('id','loadingImage'); - objLoadingImage.style.position = 'absolute'; - objLoadingImage.style.zIndex = '150'; - objLoadingImageLink.appendChild(objLoadingImage); - - imgPreloader.onload=function(){}; // clear onLoad, as IE will flip out w/animated gifs - - return false; - } - - imgPreloader.src = loadingImage; - - // create lightbox div, same note about styles as above - var objLightbox = document.createElement("div"); - objLightbox.setAttribute('id','lightbox'); - objLightbox.style.display = 'none'; - objLightbox.style.position = 'absolute'; - objLightbox.style.zIndex = '100'; - objBody.insertBefore(objLightbox, objOverlay.nextSibling); - - // create link - var objLink = document.createElement("a"); - objLink.setAttribute('href','#'); - objLink.setAttribute('title','Click to close'); - objLink.onclick = function () {hideLightbox(); return false;} - objLightbox.appendChild(objLink); - - // preload and create close button image - var imgPreloadCloseButton = new Image(); - - // if close button image found, - imgPreloadCloseButton.onload=function(){ - - var objCloseButton = document.createElement("img"); - objCloseButton.src = closeButton; - objCloseButton.setAttribute('id','closeButton'); - objCloseButton.style.position = 'absolute'; - objCloseButton.style.zIndex = '200'; - objLink.appendChild(objCloseButton); - - return false; - } - - imgPreloadCloseButton.src = closeButton; - - // create image - var objImage = document.createElement("img"); - objImage.setAttribute('id','lightboxImage'); - objLink.appendChild(objImage); - - // create details div, a container for the caption and keyboard message - var objLightboxDetails = document.createElement("div"); - objLightboxDetails.setAttribute('id','lightboxDetails'); - objLightbox.appendChild(objLightboxDetails); - - // create caption - var objCaption = document.createElement("div"); - objCaption.setAttribute('id','lightboxCaption'); - objCaption.style.display = 'none'; - objLightboxDetails.appendChild(objCaption); - - // create keyboard message - var objKeyboardMsg = document.createElement("div"); - objKeyboardMsg.setAttribute('id','keyboardMsg'); - objKeyboardMsg.innerHTML = 'press <a href="#" onclick="hideLightbox(); return false;"><kbd>x</kbd></a> to close'; - objLightboxDetails.appendChild(objKeyboardMsg); - - -} - - - - -// -// addLoadEvent() -// Adds event to window.onload without overwriting currently assigned onload functions. -// Function found at Simon Willison's weblog - http://simon.incutio.com/ -// -function addLoadEvent(func) -{ - var oldonload = window.onload; - if (typeof window.onload != 'function'){ - window.onload = func; - } else { - window.onload = function(){ - oldonload(); - func(); - } - } - -} - - - -addLoadEvent(initLightbox); // run initLightbox onLoad - -- cgit v1.2.3