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fancybox/source/helpers/jquery.fancybox-buttons.js

+ /*!
+ * Buttons helper for fancyBox
+ * version: 1.0.5 (Mon, 15 Oct 2012)
+ * @requires fancyBox v2.0 or later
+ *
+ * Usage:
+ *     $(".fancybox").fancybox({
+ *         helpers : {
+ *             buttons: {
+ *                 position : 'top'
+ *             }
+ *         }
+ *     });
+ *
+ */
+(function ($) {
+        //Shortcut for fancyBox object
+        var F = $.fancybox;
+
+        //Add helper object
+        F.helpers.buttons = {
+                defaults : {
+                        skipSingle : false, // disables if gallery contains single image
+                        position   : 'top', // 'top' or 'bottom'
+                        tpl        : '<div id="fancybox-buttons"><ul><li><a class="btnPrev" title="Previous" href="javascript:;"></a></li><li><a class="btnPlay" title="Start slideshow" href="javascript:;"></a></li><li><a class="btnNext" title="Next" href="javascript:;"></a></li><li><a class="btnToggle" title="Toggle size" href="javascript:;"></a></li><li><a class="btnClose" title="Close" href="javascript:jQuery.fancybox.close();"></a></li></ul></div>'
+                },
+
+                list : null,
+                buttons: null,
+
+                beforeLoad: function (opts, obj) {
+                        //Remove self if gallery do not have at least two items
+
+                        if (opts.skipSingle && obj.group.length < 2) {
+                                obj.helpers.buttons = false;
+                                obj.closeBtn = true;
+
+                                return;
+                        }
+
+                        //Increase top margin to give space for buttons
+                        obj.margin[ opts.position === 'bottom' ? 2 : 0 ] += 30;
+                },
+
+                onPlayStart: function () {
+                        if (this.buttons) {
+                                this.buttons.play.attr('title', 'Pause slideshow').addClass('btnPlayOn');
+                        }
+                },
+
+                onPlayEnd: function () {
+                        if (this.buttons) {
+                                this.buttons.play.attr('title', 'Start slideshow').removeClass('btnPlayOn');
+                        }
+                },
+
+                afterShow: function (opts, obj) {
+                        var buttons = this.buttons;
+
+                        if (!buttons) {
+                                this.list = $(opts.tpl).addClass(opts.position).appendTo('body');
+
+                                buttons = {
+                                        prev   : this.list.find('.btnPrev').click( F.prev ),
+                                        next   : this.list.find('.btnNext').click( F.next ),
+                                        play   : this.list.find('.btnPlay').click( F.play ),
+                                        toggle : this.list.find('.btnToggle').click( F.toggle )
+                                }
+                        }
+
+                        //Prev
+                        if (obj.index > 0 || obj.loop) {
+                                buttons.prev.removeClass('btnDisabled');
+                        } else {
+                                buttons.prev.addClass('btnDisabled');
+                        }
+
+                        //Next / Play
+                        if (obj.loop || obj.index < obj.group.length - 1) {
+                                buttons.next.removeClass('btnDisabled');
+                                buttons.play.removeClass('btnDisabled');
+
+                        } else {
+                                buttons.next.addClass('btnDisabled');
+                                buttons.play.addClass('btnDisabled');
+                        }
+
+                        this.buttons = buttons;
+
+                        this.onUpdate(opts, obj);
+                },
+
+                onUpdate: function (opts, obj) {
+                        var toggle;
+
+                        if (!this.buttons) {
+                                return;
+                        }
+
+                        toggle = this.buttons.toggle.removeClass('btnDisabled btnToggleOn');
+
+                        //Size toggle button
+                        if (obj.canShrink) {
+                                toggle.addClass('btnToggleOn');
+
+                        } else if (!obj.canExpand) {
+                                toggle.addClass('btnDisabled');
+                        }
+                },
+
+                beforeClose: function () {
+                        if (this.list) {
+                                this.list.remove();
+                        }
+
+                        this.list    = null;
+                        this.buttons = null;
+                }
+        };
+
+}(jQuery));