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['max-height'] = '150px';
  22         style.width = w;
  23         style.border = '1px solid red';
  24         style.background = '#cccccc';
  25         style.position = 'absolute';
  26         style.overflow = 'auto';
  27         style['z-index'] = '100000';
  28         style.display = 'none';
  29
  30         this.cont = $("<div class='acpopup'></div>");
  31         this.cont.css(style);
  32
  33         $(elm).after(this.cont);
  34 }
  35 ACPopup.prototype.close = function(){
  36         $(this.cont).remove();
  37         this.ready=false;
  38 }
  39 ACPopup.prototype.search = function(text){
  40         var that = this;
  41         this.searchText=text;
  42         if (this.kp_timer) clearTimeout(this.kp_timer);
  43         this.kp_timer = setTimeout( function(){that._search();}, 1000);
  44 }
  45 ACPopup.prototype._search = function(){
  46         console.log("_search");
  47         var that = this;
  48         var postdata = {
  49                 start:0,
  50                 count:100,
  51                 search:this.searchText,
  52                 type:'c',
  53         }
  54
  55         $.ajax({
  56                 type:'POST',
  57                 url: this.url,
  58                 data: postdata,
  59                 dataType: 'json',
  60                 success:function(data){
  61                         that.cont.html("");
  62                         if (data.tot>0){
  63                                 that.cont.show();
  64                                 $(data.items).each(function(){
  65                                         html = "<img src='{0}' height='16px' width='16px'>{1} ({2})".format(this.photo, this.name, this.nick)
  66                                         that.add(html, this.nick);
  67                                 });
  68                         } else {
  69                                 that.cont.hide();
  70                         }
  71                 }
  72         });
  73
  74 }
  75 ACPopup.prototype.add = function(label, value){
  76         var that=this;
  77         var elm = $("<div class='acpopupitem' title='"+value+"'>"+label+"</div>");
  78         elm.click(function(e){
  79                 t = $(this).attr('title');
  80                 el=$(that.element);
  81                 sel = el.getSelection();
  82                 sel.start = sel.start- that.searchText.length;
  83                 el.setSelection(sel.start,sel.end).replaceSelectedText(t).collapseSelection(false);
  84                 that.close();
  85         });
  86         $(this.cont).append(elm);
  87 }
  88 ACPopup.prototype.onkey = function(event){
  89         if (event.keyCode == '13' && this.idsel>-1) {
  90                 this.cont.children()[this.idsel].click();
  91                 event.preventDefault();
  92         }
  93         if (event.keyCode == '38') { //cursor up
  94                 cmax = this.cont.children().size()-1;
  95                 this.idsel--;
  96                 if (this.idsel<0) this.idsel=cmax;
  97                 event.preventDefault();
  98         }
  99         if (event.keyCode == '40') { //cursor down
 100                 cmax = this.cont.children().size()-1;
 101                 this.idsel++;
 102                 if (this.idsel>cmax) this.idsel=0;
 103                 event.preventDefault();
 104         }
 105
 106         if (event.keyCode == '38' || event.keyCode == '40' ) {
 107                 this.cont.children().css({background:'#cccccc'}).removeClass('selected');
 108                 $(this.cont.children()[this.idsel]).css({background:'#ccccff'}).addClass('selected');
 109         }
 110
 111         if (event.keyCode == '27') { //ESC
 112                 this.close();
 113         }
 114 }
 115
 116 function ContactAutocomplete(element,backend_url){
 117         this.pattern=/@([^ \n]+)$/;
 118         this.popup=null;
 119         var that = this;
 120
 121         $(element).keydown(function(event){
 122                 if (that.popup!==null) that.popup.onkey(event);
 123         });
 124
 125         $(element).keyup(function(event){
 126                 cpos = $(this).getSelection();
 127                 if (cpos.start==cpos.end){
 128                         match = $(this).val().substring(0,cpos.start).match(that.pattern);
 129                         if (match!==null){
 130                                 if (that.popup===null){
 131                                         that.popup = new ACPopup(this, backend_url);
 132                                 }
 133                                 if (that.popup.ready && match[1]!==that.popup.searchText) that.popup.search(match[1]);
 134                                 if (!that.popup.ready) that.popup=null;
 135
 136                         } else {
 137                                 if (that.popup!==null) {that.popup.close(); that.popup=null;}
 138                         }
 139
 140
 141                 }
 142         });
 143
 144 }
 145
 146 /**
 147  * jQuery plugin 'contact_autocomplete'
 148  */
 149 (function( $ ){
 150   $.fn.contact_autocomplete = function(backend_url) {
 151     this.each(function(){
 152                 new ContactAutocomplete(this, backend_url);
 153         });
 154   };
 155 })( jQuery );
 156
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