js/fk.autocomplete.js

   1 /**
   2  * Friendika people autocomplete
   3  *
   4  * require jQuery, jquery.textareas
   5  */
   6
   7
   8
   9 function ACPopup(elm,backend_url){
  10         this.idsel=-1;
  11         this.element = elm;
  12         this.searchText="";
  13         this.ready=true;
  14         this.kp_timer = false;
  15         this.url = backend_url;
  16
  17         style = $(elm).offset();
  18         w = $(elm).width();
  19         h = $(elm).height();
  20         style.top=style.top+h;
  21         style.width = w;
  22         style.position = 'absolute';
  23 /*      style['max-height'] = '150px';
  24         style.border = '1px solid red';
  25         style.background = '#cccccc';
  26
  27         style.overflow = 'auto';
  28         style['z-index'] = '100000';
  29 */
  30         style.display = 'none';
  31
  32         this.cont = $("<div class='acpopup'></div>");
  33         this.cont.css(style);
  34
  35         $("body").append(this.cont);
  36 }
  37 ACPopup.prototype.close = function(){
  38         $(this.cont).remove();
  39         this.ready=false;
  40 }
  41 ACPopup.prototype.search = function(text){
  42         var that = this;
  43         this.searchText=text;
  44         if (this.kp_timer) clearTimeout(this.kp_timer);
  45         this.kp_timer = setTimeout( function(){that._search();}, 500);
  46 }
  47 ACPopup.prototype._search = function(){
  48         console.log("_search");
  49         var that = this;
  50         var postdata = {
  51                 start:0,
  52                 count:100,
  53                 search:this.searchText,
  54                 type:'c',
  55         }
  56
  57         $.ajax({
  58                 type:'POST',
  59                 url: this.url,
  60                 data: postdata,
  61                 dataType: 'json',
  62                 success:function(data){
  63                         that.cont.html("");
  64                         if (data.tot>0){
  65                                 that.cont.show();
  66                                 $(data.items).each(function(){
  67                                         html = "<img src='{0}' height='16px' width='16px'>{1} ({2})".format(this.photo, this.name, this.nick)
  68                                         that.add(html, this.nick + '+' + this.id + ' - ' + this.link);
  69                                 });
  70                         } else {
  71                                 that.cont.hide();
  72                         }
  73                 }
  74         });
  75
  76 }
  77 ACPopup.prototype.add = function(label, value){
  78         var that=this;
  79         var elm = $("<div class='acpopupitem' title='"+value+"'>"+label+"</div>");
  80         elm.click(function(e){
  81                         t = $(this).attr('title').replace(new RegExp(' \- .*'),'');
  82                 el=$(that.element);
  83                 sel = el.getSelection();
  84                 sel.start = sel.start- that.searchText.length;
  85                 el.setSelection(sel.start,sel.end).replaceSelectedText(t).collapseSelection(false);
  86                 that.close();
  87         });
  88         $(this.cont).append(elm);
  89 }
  90 ACPopup.prototype.onkey = function(event){
  91         if (event.keyCode == '13' && this.idsel>-1) {
  92                 this.cont.children()[this.idsel].click();
  93                 event.preventDefault();
  94         }
  95         if (event.keyCode == '38') { //cursor up
  96                 cmax = this.cont.children().size()-1;
  97                 this.idsel--;
  98                 if (this.idsel<0) this.idsel=cmax;
  99                 event.preventDefault();
 100         }
 101         if (event.keyCode == '40') { //cursor down
 102                 cmax = this.cont.children().size()-1;
 103                 this.idsel++;
 104                 if (this.idsel>cmax) this.idsel=0;
 105                 event.preventDefault();
 106         }
 107
 108         if (event.keyCode == '38' || event.keyCode == '40' ) {
 109                 this.cont.children().removeClass('selected');
 110                 $(this.cont.children()[this.idsel]).addClass('selected');
 111         }
 112
 113         if (event.keyCode == '27') { //ESC
 114                 this.close();
 115         }
 116 }
 117
 118 function ContactAutocomplete(element,backend_url){
 119         this.pattern=/@([^ \n]+)$/;
 120         this.popup=null;
 121         var that = this;
 122
 123         $(element).unbind('keydown');
 124         $(element).unbind('keyup');
 125
 126         $(element).keydown(function(event){
 127                 if (that.popup!==null) that.popup.onkey(event);
 128         });
 129
 130         $(element).keyup(function(event){
 131                 cpos = $(this).getSelection();
 132                 if (cpos.start==cpos.end){
 133                         match = $(this).val().substring(0,cpos.start).match(that.pattern);
 134                         if (match!==null){
 135                                 if (that.popup===null){
 136                                         that.popup = new ACPopup(this, backend_url);
 137                                 }
 138                                 if (that.popup.ready && match[1]!==that.popup.searchText) that.popup.search(match[1]);
 139                                 if (!that.popup.ready) that.popup=null;
 140
 141                         } else {
 142                                 if (that.popup!==null) {that.popup.close(); that.popup=null;}
 143                         }
 144
 145
 146                 }
 147         });
 148
 149 }
 150
 151
 152 /**
 153  * jQuery plugin 'contact_autocomplete'
 154  */
 155 (function( $ ){
 156   $.fn.contact_autocomplete = function(backend_url) {
 157     this.each(function(){
 158                 new ContactAutocomplete(this, backend_url);
 159         });
 160   };
 161 })( jQuery );
 162
 163
 164
 165