96 lines
2.4 KiB
JavaScript
96 lines
2.4 KiB
JavaScript
/*!
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Deck JS - deck.status
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Copyright (c) 2011 Caleb Troughton
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Dual licensed under the MIT license and GPL license.
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https://github.com/imakewebthings/deck.js/blob/master/MIT-license.txt
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https://github.com/imakewebthings/deck.js/blob/master/GPL-license.txt
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*/
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/*
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This module adds a (current)/(total) style status indicator to the deck.
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*/
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(function($, deck, undefined) {
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var $d = $(document),
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updateCurrent = function(e, from, to) {
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var opts = $[deck]('getOptions');
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$(opts.selectors.statusCurrent).text(opts.countNested ?
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to + 1 :
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$[deck]('getSlide', to).data('rootSlide')
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);
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};
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/*
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Extends defaults/options.
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options.selectors.statusCurrent
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The element matching this selector displays the current slide number.
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options.selectors.statusTotal
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The element matching this selector displays the total number of slides.
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options.countNested
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If false, only top level slides will be counted in the current and
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total numbers.
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*/
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$.extend(true, $[deck].defaults, {
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selectors: {
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statusCurrent: '.deck-status-current',
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statusTotal: '.deck-status-total'
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},
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countNested: true
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});
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$d.bind('deck.init', function() {
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var opts = $[deck]('getOptions'),
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slides = $[deck]('getSlides'),
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$current = $[deck]('getSlide'),
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ndx;
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// Set total slides once
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if (opts.countNested) {
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$(opts.selectors.statusTotal).text(slides.length);
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}
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else {
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/* Determine root slides by checking each slide's ancestor tree for
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any of the slide classes. */
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var rootIndex = 1,
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slideTest = $.map([
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opts.classes.before,
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opts.classes.previous,
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opts.classes.current,
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opts.classes.next,
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opts.classes.after
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], function(el, i) {
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return '.' + el;
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}).join(', ');
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/* Store the 'real' root slide number for use during slide changes. */
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$.each(slides, function(i, $el) {
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var $parentSlides = $el.parentsUntil(opts.selectors.container, slideTest);
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$el.data('rootSlide', $parentSlides.length ?
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$parentSlides.last().data('rootSlide') :
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rootIndex++
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);
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});
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$(opts.selectors.statusTotal).text(rootIndex - 1);
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}
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// Find where we started in the deck and set initial state
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$.each(slides, function(i, $el) {
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if ($el === $current) {
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ndx = i;
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return false;
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}
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});
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updateCurrent(null, ndx, ndx);
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})
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/* Update current slide number with each change event */
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.bind('deck.change', updateCurrent);
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})(jQuery, 'deck');
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