97 lines
2.9 KiB
JavaScript
97 lines
2.9 KiB
JavaScript
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/**
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* jQuery plugin for Responsive Hotspot
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*
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* Author: SK Lam
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*/
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(function() {
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'use strict';
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/*
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Reposition the HotSpots during init and resize windows
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*/
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function _positionHotspots(options) {
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var imageWidth = $(options.mainselector + ' ' + options.imageselector).prop('naturalWidth');
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var imageHeight = $(options.mainselector + ' ' + options.imageselector).prop('naturalHeight');
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var bannerWidth = $(options.mainselector).width();
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var bannerHeight = $(options.mainselector).height();
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$(options.selector).each(function() {
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var xPos = $(this).attr('data-x');
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var yPos = $(this).attr('data-y');
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xPos = xPos / imageWidth * bannerWidth;
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yPos = yPos / imageHeight * bannerHeight;
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$(this).css({
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'top': yPos,
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'left': xPos,
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'display': 'block',
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});
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$(this).children(options.tooltipselector).css({
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'margin-left': - ($(this).children(options.tooltipselector).width() / 2)
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});
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});
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}
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// Bind the events (hover or click) for the tooltip
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function _bindHotspots(e, options) {
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if ($(e).children(options.tooltipselector).is(':visible')) {
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$(e).children(options.tooltipselector).css('display', 'none');
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$(e).removeClass('hotspot-tooltip-open');
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} else {
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$(options.selector + ' ' + options.tooltipselector).css('display', 'none');
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$(e).children(options.tooltipselector).css('display', 'block');
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$(e).addClass('hotspot-tooltip-open');
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if ($(window).width() - ($(e).children(options.tooltipselector).offset().left + $(e).children(options.tooltipselector).outerWidth()) < 0) {
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$(e).children(options.tooltipselector).css({
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'right': '0',
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'left': 'auto',
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});
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}
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}
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}
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$.fn.hotSpot = function( options ) {
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// Extend our default options with those provided.
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// Note that the first argument to extend is an empty
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// object – this is to keep from overriding our "defaults" object.
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var _options = $.extend( {}, $.fn.hotSpot.defaults, options );
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// Position each hotspot
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this.each(function() {
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_positionHotspots.call($(this), _options);
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});
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// Bind the windows resize event to recalculate the hotspot position
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$(window).resize(function() {
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this.each(function() {
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_positionHotspots.call($(this), _options);
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});
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}.bind(this));
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// Bind the hover/click for selector to show the tooltip
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switch (_options.bindselector) {
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case 'click':
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this.find(_options.selector).bind ('click', function(e){_bindHotspots(e.currentTarget, _options)});
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this.find(_options.selector).addClass('hotspot-on-click');
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break;
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case 'hover':
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this.find(_options.selector).hover (function(e){_bindHotspots(e.currentTarget, _options)});
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break;
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default:
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break;
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}
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return this;
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};
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// Plugin defaults
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$.fn.hotSpot.defaults = {
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mainselector: '.hotspot-img',
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selector: '.hot-spot',
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imageselector: '.img-responsive',
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tooltipselector: '.tooltip',
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bindselector: 'hover'
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};
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}(jQuery));
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