109 lines
2.7 KiB
JavaScript
109 lines
2.7 KiB
JavaScript
/*!
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Deck JS - deck.status
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Copyright (c) 2011-2014 Caleb Troughton
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Dual licensed under the MIT license.
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https://github.com/imakewebthings/deck.js/blob/master/MIT-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($, undefined) {
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var $document = $(document);
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var rootCounter;
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var updateCurrent = function(event, from, to) {
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var options = $.deck('getOptions');
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var currentSlideNumber = to + 1;
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if (!options.countNested) {
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currentSlideNumber = $.deck('getSlide', to).data('rootSlide');
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}
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$(options.selectors.statusCurrent).text(currentSlideNumber);
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};
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var markRootSlides = function() {
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var options = $.deck('getOptions');
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var slideTest = $.map([
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options.classes.before,
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options.classes.previous,
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options.classes.current,
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options.classes.next,
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options.classes.after
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], function(el, i) {
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return '.' + el;
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}).join(', ');
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rootCounter = 0;
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$.each($.deck('getSlides'), function(i, $slide) {
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var $parentSlides = $slide.parentsUntil(
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options.selectors.container,
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slideTest
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);
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if ($parentSlides.length) {
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$slide.data('rootSlide', $parentSlides.last().data('rootSlide'));
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}
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else {
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++rootCounter;
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$slide.data('rootSlide', rootCounter);
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}
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});
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};
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var setInitialSlideNumber = function() {
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var slides = $.deck('getSlides');
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var $currentSlide = $.deck('getSlide');
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var index;
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$.each(slides, function(i, $slide) {
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if ($slide === $currentSlide) {
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index = i;
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return false;
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}
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});
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updateCurrent(null, index, index);
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};
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var setTotalSlideNumber = function() {
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var options = $.deck('getOptions');
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var slides = $.deck('getSlides');
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if (options.countNested) {
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$(options.selectors.statusTotal).text(slides.length);
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}
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else {
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$(options.selectors.statusTotal).text(rootCounter);
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}
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};
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/*
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Extends defaults/options.
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options.selectors.statusCurrent
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The element matching this selector displays the current slide number.
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options.selectors.statusTotal
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The element matching this selector displays the total number of slides.
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options.countNested
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If false, only top level slides will be counted in the current and
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total numbers.
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*/
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$.extend(true, $.deck.defaults, {
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selectors: {
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statusCurrent: '.deck-status-current',
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statusTotal: '.deck-status-total'
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},
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countNested: true
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});
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$document.bind('deck.init', function() {
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markRootSlides();
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setInitialSlideNumber();
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setTotalSlideNumber();
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});
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$document.bind('deck.change', updateCurrent);
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})(jQuery, 'deck');
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