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|
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/* |
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Item Name: Winter Treefield |
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Author: wpdirectorykit |
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Author URI: https://wpdirectorykit.com/ |
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Version: 1.0 |
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*/ |
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|
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jQuery.fn.wdkTreefield = function (options) |
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{ |
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var defaults = { |
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ajax_url: null, |
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ajax_param: {}, |
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text_search: 'Search term', |
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text_no_results: 'No results found', |
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per_page: 10, |
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offset: 0, |
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attribute_id: 'id', |
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attribute_value: 'value', |
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language_id: null, |
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user_check: 'false', |
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sql_where: '', |
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hide_fields: '', |
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skip_id: null, |
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empty_value: ' - ', |
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callback_selected: function(key) { |
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console.log('called callback: '+key); |
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} |
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}; |
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|
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var options = jQuery.extend(defaults, options); |
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|
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var jqxhr; |
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var is_loading = false; |
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var request; |
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var search_enter_focus = false; |
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|
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/* Public API */ |
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/* |
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this.getCurrent = function() |
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{ |
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return options.currElImg; |
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} |
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|
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this.getIndex = function(){ |
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return options.currIndex; |
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}; |
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*/ |
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|
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return this.each (function () |
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{ |
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options.obj = jQuery(this); |
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|
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options.firstLoad=true; |
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options.endLoad=false; |
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|
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options.currValue=options.empty_value; |
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if(options.obj.val() != '') |
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options.currValue = options.obj.val(); |
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|
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generateHtml(); |
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|
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|
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// Add loading indicator |
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options.obj.parent().find(".circle-loading-bar").addClass(options.progressBar); |
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|
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// open scroll part |
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options.obj.parent().find('.btn-group:first button').on('click', function(event) { |
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var container = options.obj.parent().find('.list_container'); |
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|
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if( container.hasClass('win_visible') ) |
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{ |
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container.hide(); |
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container.removeClass('win_visible'); |
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container.parent().removeClass('win_open'); |
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} |
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else |
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{ |
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container.show(); |
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container.parent().addClass('win_open'); |
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container.addClass('win_visible'); |
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if(options.firstLoad) |
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options.obj.parent().find('.list_scroll').scrollTop(0); |
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options.firstLoad=false; |
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|
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jQuery(options.obj.parent().find('.search_term')).focus(); |
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} |
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|
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options.obj.parent().find('.list_scroll li').removeClass('selected'); |
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|
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return false; |
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}).on('keypress', function(event) { |
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var keyCode = event.keyCode || event.which; |
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|
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if(keyCode == 13) // Enter |
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{ |
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var container = options.obj.parent().find('.list_container'); |
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|
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if( container.hasClass('win_visible') ) |
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{ |
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container.hide(); |
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container.removeClass('win_visible'); |
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container.parent().removeClass('win_open'); |
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} |
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else |
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{ |
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container.show(); |
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container.parent().addClass('win_open'); |
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container.addClass('win_visible'); |
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if(options.firstLoad) |
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options.obj.parent().find('.list_scroll').scrollTop(0); |
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options.firstLoad=false; |
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|
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//options.obj.parent().find('.list_scroll li').first().addClass('selected'); |
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|
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search_enter_focus = true; |
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jQuery(options.obj.parent().find('.search_term')).focus(); |
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} |
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|
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return false; |
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} |
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}) |
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|
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// hide when click outside |
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jQuery(document).on('mouseup keyup', function (e) |
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{ |
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var container = options.obj.parent().find('.wdk_dropdown_tree'); |
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var container_hidder = options.obj.parent().find('.list_container'); |
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|
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if (!container.is(e.target) // if the target of the click isn't the container... |
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&& container.has(e.target).length === 0) // ... nor a descendant of the container |
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{ |
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container_hidder.hide(); |
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container_hidder.parent().removeClass('win_open'); |
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container_hidder.removeClass('win_visible'); |
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} |
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}); |
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|
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// load first n values |
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loadMore(); |
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|
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// scroll |
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var scroll_container = options.obj.parent().find('.list_scroll'); |
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var list_items = options.obj.parent().find('.list_items'); |
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|
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jQuery(scroll_container).on('scroll', function () { |
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if (jQuery(scroll_container).scrollTop() + jQuery(scroll_container).height() >= (jQuery(list_items).height() - 3)) { |
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if(!options.endLoad) |
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loadMore(); |
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} |
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}); |
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|
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// keypress/typing event |
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jQuery(options.obj.parent().find('.search_term')).on('keyup', function(event) { |
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var keyCode = event.keyCode || event.which; |
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|
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if(keyCode == 13) // Enter |
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{ |
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if(options.obj.parent().find('.list_scroll li.selected').length > 0) |
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{ |
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if(!search_enter_focus) |
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{ |
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var elSel = options.obj.parent().find('.list_scroll li.selected'); |
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|
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options.obj.parent().find('button:first-child').html(elSel.html()); |
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options.obj.val(elSel.attr('key')); |
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|
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options.obj.parent().find('.list_container').hide(); |
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options.obj.parent().find('.list_container').parent().removeClass('win_open'); |
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options.obj.parent().find('.list_container').removeClass('win_visible'); |
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options.obj.parent().find('.list_scroll li').removeClass('selected'); |
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|
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options.callback_selected(elSel.attr('key')); |
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} |
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|
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return false; |
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} |
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|
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if(search_enter_focus) |
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{ |
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search_enter_focus = false; |
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return false; |
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} |
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} |
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else if(keyCode == 38) // Up |
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{ |
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var elSel = options.obj.parent().find('.list_scroll li.selected'); |
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|
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if(elSel.length == 0) |
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{ |
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options.obj.parent().find('.list_scroll li').first().addClass('selected'); |
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} |
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|
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if(!elSel.is(':first-child')) |
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{ |
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elSel.prev().addClass('selected'); |
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elSel.removeClass('selected'); |
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|
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var container = options.obj.parent().find('.list_scroll'); |
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var scrollTo = elSel.prev(); |
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|
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// Calculating new position of scrollbar |
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var position = scrollTo.offset().top |
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- container.offset().top |
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+ container.scrollTop(); |
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|
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// Setting the value of scrollbar |
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if(!isVisible(scrollTo)) |
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container.scrollTop(position); |
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} |
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return false; |
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} |
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else if(keyCode == 40) // Down |
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{ |
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var elSel = options.obj.parent().find('.list_scroll li.selected'); |
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|
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if(elSel.length == 0) |
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{ |
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options.obj.parent().find('.list_scroll li').first().addClass('selected'); |
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} |
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|
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if(!elSel.is(':last-child')) |
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{ |
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elSel.next().addClass('selected'); |
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elSel.removeClass('selected'); |
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|
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var container = options.obj.parent().find('.list_scroll'); |
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var scrollTo = elSel.next(); |
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|
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// Calculating new position of scrollbar |
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var position = scrollTo.offset().top |
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- container.offset().top |
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+ container.scrollTop(); |
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|
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// Setting the value of scrollbar |
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|
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if(!isVisible(scrollTo)) |
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container.scrollTop(position); |
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} |
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return false; |
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} |
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|
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options.endLoad=false; |
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options.offset=0; |
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|
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//if(is_loading === false) |
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loadMore(); |
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|
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}).on('keypress', function(event) { |
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if ( event.which == 13 ) { |
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return false; |
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} |
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}); |
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|
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jQuery(options.obj.parent().find('span.input-group-addon')).on('click', function() { |
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options.endLoad=false; |
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options.offset=0; |
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|
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if(is_loading === false) |
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loadMore(); |
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}); |
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|
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|
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|
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return this; |
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}); |
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|
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function isVisible($el) { |
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var container = options.obj.parent().find('.list_scroll'); |
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|
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var winTop = container.scrollTop(); |
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var winBottom = winTop + container.height(); |
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var elTop = $el.offset().top-container.offset().top+winTop; |
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var elBottom = elTop + $el.height(); |
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|
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return ((elBottom <= winBottom) && (elTop >= winTop)); |
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} |
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|
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function loadMore() |
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{ |
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|
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|
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var search_term_val = options.obj.parent().find('.search_term').val(); |
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|
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if(options.offset == 0) |
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options.obj.parent().find('ul').html(''); |
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|
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var param = { offset: options.offset, |
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per_page: options.per_page, |
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curr_id: options.obj.val(), |
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attribute_id: options.attribute_id, |
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attribute_value: options.attribute_value, |
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search_term: search_term_val, |
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language_id: options.language_id, |
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skip_id: options.skip_id, |
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user_check: options.user_check, |
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sql_where: options.sql_where, |
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hide_fields: options.hide_fields |
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}; |
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|
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jQuery.extend( param, options.ajax_param ); |
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|
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// Assign handlers immediately after making the request, |
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// and remember the jqxhr object for this request |
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if(jqxhr != null) |
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jqxhr.abort(); |
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|
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options.callback_selected(options.obj.val()); |
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|
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showSpinner(); |
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|
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is_loading=true; |
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jqxhr = jQuery.post( options.ajax_url, param, function(data) { |
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hideSpinner(); |
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var list_items = options.obj.parent().find('ul'); |
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|
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if(data.success == false) |
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{ |
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options.endLoad=true; |
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list_items.html('<span class="no_results">'+options.text_no_results+'</span>'); |
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alert(data.message); |
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} |
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else |
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{ |
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jQuery.each( data.results, function( key, row ) { |
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if(key == 'lang_id') return true; |
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list_items.append("<li key='"+row.key+"'>"+row.value+"</li>"); |
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}); |
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|
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if(options.offset == 0) |
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options.obj.parent().find('.list_scroll').scrollTop(0); |
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|
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if(options.firstLoad) |
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options.obj.parent().find('button:first-child').html(data.curr_val); |
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|
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if(data.results.length == 0) |
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options.endLoad=true; |
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|
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if(options.offset == 0 && data.results.length == 0) |
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list_items.html('<span class="no_results">'+options.text_no_results+'</span>'); |
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|
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options.offset+=options.per_page; |
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resetElements(); |
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} |
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|
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is_loading=false; |
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}) |
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.fail(function() { |
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//alert( "error" ); |
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console.log( "abort" ); |
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hideSpinner(); |
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is_loading=false; |
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}); |
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} |
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|
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function hideSpinner() |
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{ |
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options.obj.parent().find('.loader-spiner').removeClass('fa-spinner'); |
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options.obj.parent().find('.loader-spiner').removeClass('fa-spin'); |
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options.obj.parent().find('.loader-spiner').addClass('fa-search'); |
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} |
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|
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function showSpinner() |
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{ |
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options.obj.parent().find('.loader-spiner').addClass('fa-spinner'); |
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options.obj.parent().find('.loader-spiner').addClass('fa-spin'); |
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options.obj.parent().find('.loader-spiner').removeClass('fa-search'); |
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} |
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|
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function resetElements() |
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{ |
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options.obj.parent().find("li *").off(); |
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options.obj.parent().find("li").on('click', function() { |
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options.obj.parent().find('button:first-child').html(jQuery(this).html()); |
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options.obj.val(jQuery(this).attr('key')); |
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options.obj.parent().find('.list_container').hide(); |
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options.obj.parent().find('.list_container').parent().removeClass('win_open'); |
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options.obj.parent().find('.list_container').removeClass('win_visible'); |
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|
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options.callback_selected(jQuery(this).attr('key')); |
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}); |
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|
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} |
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|
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function generateHtml() |
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{ |
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// hide input element |
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options.obj.css('display', 'none'); |
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|
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options.obj.before( |
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'<div class="wdk_dropdown_tree">'+ |
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// showing value, always visible |
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'<div class="btn-group ">'+ |
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'<button class="btn btn-default" type="button">'+ |
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options.currValue+' '+ |
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'</button>'+ |
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'<button type="button" class="btn btn-default dropdown-toggle"> <i class="fa fa-angle-down"></i> </button>'+ |
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'</div>'+ |
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// hidden part with scroll and search |
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'<div class="list_container color-primary">'+ |
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'<div class="list_scroll">'+ |
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'<ul class="list_items">'+ |
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// '<li key="key_1">test text adr 1</li>'+ |
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'</ul>'+ |
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'</div>'+ |
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// search input and loading indicator |
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'<div class="input-group">'+ |
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'<input type="text" class="form-control search_term" placeholder="'+options.text_search+'" aria-describedby="basic-addon2" autocomplete="off">'+ |
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'<span class="input-group-addon"><i class="loader-spiner fa fa-spinner fa-spin"></i></span>'+ |
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'</div>'+ |
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'</div>'+ |
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'</div>' |
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); |
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} |
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|
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} |
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