view/js/autocomplete.js

   1 // @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt Expat
   2 /**
   3  * Friendica people autocomplete
   4  *
   5  * require jQuery, jquery.textcomplete
   6  *
   7  * for further documentation look at:
   8  * http://yuku-t.com/jquery-textcomplete/
   9  *
  10  * https://github.com/yuku-t/jquery-textcomplete/blob/master/doc/how_to_use.md
  11  */
  12
  13
  14 function contact_search(term, callback, backend_url, type, mode) {
  15
  16         // Check if there is a conversation id to include the unkonwn contacts of the conversation
  17         var conv_id = document.activeElement.id.match(/\d+$/);
  18
  19         // Check if there is a cached result that contains the same information we would get with a full server-side search
  20         var bt = backend_url+type;
  21         if(!(bt in contact_search.cache)) contact_search.cache[bt] = {};
  22
  23         var lterm = term.toLowerCase(); // Ignore case
  24         for(var t in contact_search.cache[bt]) {
  25                 if(lterm.indexOf(t) >= 0) { // A more broad search has been performed already, so use those results
  26                         // Filter old results locally
  27                         var matching = contact_search.cache[bt][t].filter(function (x) { return (x.name.toLowerCase().indexOf(lterm) >= 0 || (typeof x.nick !== 'undefined' && x.nick.toLowerCase().indexOf(lterm) >= 0)); }); // Need to check that nick exists because groups don't have one
  28                         matching.unshift({forum:false, text: term, replace: term});
  29                         setTimeout(function() { callback(matching); } , 1); // Use "pseudo-thread" to avoid some problems
  30                         return;
  31                 }
  32         }
  33
  34         var postdata = {
  35                 start:0,
  36                 count:100,
  37                 search:term,
  38                 type:type,
  39         };
  40
  41         if(conv_id !== null)
  42                 postdata['conversation'] = conv_id[0];
  43
  44         if(mode !== null)
  45                 postdata['smode'] = mode;
  46
  47
  48         $.ajax({
  49                 type:'POST',
  50                 url: backend_url,
  51                 data: postdata,
  52                 dataType: 'json',
  53                 success: function(data){
  54                         // Cache results if we got them all (more information would not improve results)
  55                         // data.count represents the maximum number of items
  56                         if(data.items.length -1 < data.count) {
  57                                 contact_search.cache[bt][lterm] = data.items;
  58                         }
  59                         var items = data.items.slice(0);
  60                         items.unshift({taggable:false, text: term, replace: term});
  61                         callback(items);
  62                 },
  63         }).fail(function () {callback([]); }); // Callback must be invoked even if something went wrong.
  64 }
  65 contact_search.cache = {};
  66
  67
  68 function contact_format(item) {
  69         // Show contact information if not explicitly told to show something else
  70         if(typeof item.text === 'undefined') {
  71                 var desc = ((item.label) ? item.nick + ' ' + item.label : item.nick);
  72                 var forum = ((item.forum) ? 'forum' : '');
  73                 if(typeof desc === 'undefined') desc = '';
  74                 if(desc) desc = ' ('+desc+')';
  75                 return "<div class='{0}' title='{4}'><img class='acpopup-img' src='{1}'><span class='acpopup-contactname'>{2}</span><span class='acpopup-sub-text'>{3}</span><div class='clear'></div></div>".format(forum, item.photo, item.name, desc, item.link);
  76         }
  77         else
  78                 return "<div>" + item.text + "</div>";
  79 }
  80
  81 function tag_format(item) {
  82         return "<div class='dropdown-item'>" + '#' + item.text + "</div>";
  83 }
  84
  85 function editor_replace(item) {
  86         if (typeof item.replace !== 'undefined') {
  87                 return '$1$2' + item.replace;
  88         }
  89
  90         if (typeof item.addr !== 'undefined') {
  91                 return '$1$2' + item.addr + ' ';
  92         }
  93
  94         // $2 ensures that prefix (@,@!) is preserved
  95         var id = item.id;
  96
  97         // don't add the id if it is empty (the id empty eg. if there are unknow contacts in thread)
  98         if (id.length < 1) {
  99                 return '$1$2' + item.nick.replace(' ', '') + ' ';
 100         }
 101         // 16 chars of hash should be enough. Full hash could be used if it can be done in a visually appealing way.
 102         // 16 chars is also the minimum length in the backend (otherwise it's interpreted as a local id).
 103         if (id.length > 16) {
 104                 id = item.id.substring(0,16);
 105         }
 106         return '$1$2' + item.nick.replace(' ', '') + '+' + id + ' ';
 107 }
 108
 109 function basic_replace(item) {
 110         if(typeof item.replace !== 'undefined')
 111                 return '$1'+item.replace;
 112
 113         return '$1'+item.name+' ';
 114 }
 115
 116 function webbie_replace(item) {
 117         if(typeof item.replace !== 'undefined')
 118                 return '$1'+item.replace;
 119
 120         return '$1'+item.nick+' ';
 121 }
 122
 123 function trim_replace(item) {
 124         if(typeof item.replace !== 'undefined')
 125                 return '$1'+item.replace;
 126
 127         return '$1'+item.name;
 128 }
 129
 130
 131 function submit_form(e) {
 132         $(e).parents('form').submit();
 133 }
 134
 135 function getWord(text, caretPos) {
 136         var index = text.indexOf(caretPos);
 137         var postText = text.substring(caretPos, caretPos+8);
 138         if ((postText.indexOf("[/list]") > 0) || postText.indexOf("[/ul]") > 0 || postText.indexOf("[/ol]") > 0) {
 139                 return postText;
 140         }
 141 }
 142
 143 function getCaretPosition(ctrl) {
 144         var CaretPos = 0;   // IE Support
 145         if (document.selection) {
 146                 ctrl.focus();
 147                 var Sel = document.selection.createRange();
 148                 Sel.moveStart('character', -ctrl.value.length);
 149                 CaretPos = Sel.text.length;
 150         }
 151         // Firefox support
 152         else if (ctrl.selectionStart || ctrl.selectionStart == '0')
 153                 CaretPos = ctrl.selectionStart;
 154         return (CaretPos);
 155 }
 156
 157 function setCaretPosition(ctrl, pos){
 158         if(ctrl.setSelectionRange) {
 159                 ctrl.focus();
 160                 ctrl.setSelectionRange(pos,pos);
 161         }
 162         else if (ctrl.createTextRange) {
 163                 var range = ctrl.createTextRange();
 164                 range.collapse(true);
 165                 range.moveEnd('character', pos);
 166                 range.moveStart('character', pos);
 167                 range.select();
 168         }
 169 }
 170
 171 function listNewLineAutocomplete(id) {
 172         var text = document.getElementById(id);
 173         var caretPos = getCaretPosition(text)
 174         var word = getWord(text.value, caretPos);
 175         if (word != null) {
 176                 var textBefore = text.value.substring(0, caretPos);
 177                 var textAfter  = text.value.substring(caretPos, text.length);
 178                 $('#' + id).val(textBefore + '\r\n[*] ' + textAfter).trigger('change');
 179                 setCaretPosition(text, caretPos + 5);
 180                 return true;
 181         }
 182         else {
 183                 return false;
 184         }
 185 }
 186
 187 function string2bb(element) {
 188         if(element == 'bold') return 'b';
 189         else if(element == 'italic') return 'i';
 190         else if(element == 'underline') return 'u';
 191         else if(element == 'overline') return 'o';
 192         else if(element == 'strike') return 's';
 193         else return element;
 194 }
 195
 196 /**
 197  * jQuery plugin 'editor_autocomplete'
 198  */
 199 (function( $ ) {
 200         let textcompleteObjects = [];
 201
 202         // jQuery wrapper for yuku/old-textcomplete
 203         // uses a local object directory to avoid recreating Textcomplete objects
 204         $.fn.textcomplete = function (strategies, options) {
 205                 if (!(this.data('textcompleteId') in textcompleteObjects)) {
 206                         let editor = new Textcomplete.editors.Textarea(this.get(0));
 207
 208                         this.data('textcompleteId', textcompleteObjects.length);
 209                         textcompleteObjects.push(new Textcomplete(editor, options));
 210                 }
 211
 212                 textcompleteObjects[this.data('textcompleteId')].register(strategies);
 213
 214                 return this;
 215         };
 216
 217         /**
 218          * This function should be called immediately after $.textcomplete() to prevent the escape key press to propagate
 219          * after the autocompletion dropdown has closed.
 220          * This avoids the input textarea to lose focus, the modal window to close, etc... when the expected behavior is
 221          * to just close the autocomplete dropdown.
 222          *
 223          * The custom event listener name allows removing this specific event listener, the "real" event this listens to
 224          * is the part before the first dot.
 225          *
 226          * @returns {*}
 227          */
 228         $.fn.fixTextcompleteEscape = function () {
 229                 if (this.data('textcompleteEscapeFixed')) {
 230                         return this;
 231                 }
 232
 233                 this.data('textcompleteEscapeFixed', true);
 234
 235                 return this.on({
 236                         'textComplete:show': function (e) {
 237                                 $(this).on('keydown.friendica.escape', function (e) {
 238                                         if (e.key === 'Escape') {
 239                                                 e.stopPropagation();
 240                                         }
 241                                 });
 242                         },
 243                         'textComplete:hide': function (e) {
 244                                 $(this).off('keydown.friendica.escape');
 245                         },
 246                 });
 247         }
 248
 249         $.fn.editor_autocomplete = function(backend_url) {
 250
 251                 // Autocomplete contacts
 252                 contacts = {
 253                         match: /(^|\s)(@\!*)([^ \n]+)$/,
 254                         index: 3,
 255                         search: function(term, callback) { contact_search(term, callback, backend_url, 'c'); },
 256                         replace: editor_replace,
 257                         template: contact_format,
 258                 };
 259
 260                 // Autocomplete forums
 261                 forums = {
 262                         match: /(^|\s)(!\!*)([^ \n]+)$/,
 263                         index: 3,
 264                         search: function(term, callback) { contact_search(term, callback, backend_url, 'f'); },
 265                         replace: editor_replace,
 266                         template: contact_format,
 267                 };
 268
 269                 // Autocomplete hashtags
 270                 tags = {
 271                         match: /(^|\s)(\#)([^ \n]{2,})$/,
 272                         index: 3,
 273                         search: function(term, callback) {
 274                                 $.getJSON(baseurl + '/hashtag/' + '?t=' + term)
 275                                 .done(function(data) {
 276                                         callback($.map(data, function(entry) {
 277                                                 // .toLowerCase() enables case-insensitive search
 278                                                 return entry.text.toLowerCase().indexOf(term.toLowerCase()) === 0 ? entry : null;
 279                                         }));
 280                                 });
 281                         },
 282                         replace: function(item) { return "$1$2" + item.text + ' '; },
 283                         template: tag_format
 284                 };
 285
 286                 // Autocomplete smilies e.g. ":like"
 287                 smilies = {
 288                         match: /(^|\s)(:[a-z]{2,})$/,
 289                         index: 2,
 290                         search: function(term, callback) { $.getJSON('smilies/json').done(function(data) { callback($.map(data, function(entry) { return entry.text.indexOf(term) === 0 ? entry : null; })); }); },
 291                         template: function(item) { return item.icon + ' ' + item.text; },
 292                         replace: function(item) { return "$1" + item.text + ' '; },
 293                 };
 294
 295                 this.attr('autocomplete','off');
 296                 this.textcomplete([contacts, forums, smilies, tags], {className:'acpopup', zIndex:10000});
 297                 this.fixTextcompleteEscape();
 298
 299                 return this;
 300         };
 301
 302         $.fn.search_autocomplete = function(backend_url) {
 303                 // Autocomplete contacts
 304                 contacts = {
 305                         match: /(^@)([^\n]{2,})$/,
 306                         index: 2,
 307                         search: function(term, callback) { contact_search(term, callback, backend_url, 'x', 'contact'); },
 308                         replace: webbie_replace,
 309                         template: contact_format,
 310                 };
 311
 312                 // Autocomplete forum accounts
 313                 community = {
 314                         match: /(^!)([^\n]{2,})$/,
 315                         index: 2,
 316                         search: function(term, callback) { contact_search(term, callback, backend_url, 'x', 'community'); },
 317                         replace: webbie_replace,
 318                         template: contact_format,
 319                 };
 320
 321                 // Autocomplete hashtags
 322                 tags = {
 323                         match: /(^|\s)(\#)([^ \n]{2,})$/,
 324                         index: 3,
 325                         search: function(term, callback) { $.getJSON(baseurl + '/hashtag/' + '?t=' + term).done(function(data) { callback($.map(data, function(entry) { return entry.text.indexOf(term) === 0 ? entry : null; })); }); },
 326                         replace: function(item) { return "$1$2" + item.text; },
 327                         template: tag_format
 328                 };
 329
 330                 this.attr('autocomplete', 'off');
 331                 this.textcomplete([contacts, community, tags], {className:'acpopup', maxCount:100, zIndex: 10000, appendTo:'nav'});
 332                 this.fixTextcompleteEscape();
 333                 this.on('textComplete:select', function(e, value, strategy) { submit_form(this); });
 334
 335                 return this;
 336         };
 337
 338         $.fn.name_autocomplete = function(backend_url, typ, autosubmit, onselect) {
 339                 if(typeof typ === 'undefined') typ = '';
 340                 if(typeof autosubmit === 'undefined') autosubmit = false;
 341
 342                 // Autocomplete contacts
 343                 names = {
 344                         match: /(^)([^\n]+)$/,
 345                         index: 2,
 346                         search: function(term, callback) { contact_search(term, callback, backend_url, typ); },
 347                         replace: trim_replace,
 348                         template: contact_format,
 349                 };
 350
 351                 this.attr('autocomplete','off');
 352                 this.textcomplete([names], {className:'acpopup', zIndex:10000});
 353                 this.fixTextcompleteEscape();
 354
 355                 if(autosubmit) {
 356                         this.on('textComplete:select', function(e,value,strategy) { submit_form(this); });
 357                 }
 358
 359                 if(typeof onselect !== 'undefined') {
 360                         this.on('textComplete:select', function(e, value, strategy) { onselect(value); });
 361                 }
 362
 363                 return this;
 364         };
 365
 366         $.fn.bbco_autocomplete = function(type) {
 367                 if (type === 'bbcode') {
 368                         var open_close_elements = ['bold', 'italic', 'underline', 'overline', 'strike', 'quote', 'code', 'spoiler', 'map', 'img', 'url', 'audio', 'video', 'embed', 'youtube', 'vimeo', 'list', 'ul', 'ol', 'li', 'table', 'tr', 'th', 'td', 'center', 'color', 'font', 'size', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'nobb', 'noparse', 'pre', 'abstract'];
 369                         var open_elements = ['*', 'hr'];
 370
 371                         var elements = open_close_elements.concat(open_elements);
 372                 }
 373
 374                 bbco = {
 375                         match: /\[(\w*\**)$/,
 376                         search: function (term, callback) {
 377                                 callback($.map(elements, function (element) {
 378                                         return element.indexOf(term) === 0 ? element : null;
 379                                 }));
 380                         },
 381                         index: 1,
 382                         replace: function (element) {
 383                                 element = string2bb(element);
 384                                 if(open_elements.indexOf(element) < 0) {
 385                                         if(element === 'list' || element === 'ol' || element === 'ul') {
 386                                                 return ['\[' + element + '\]' + '\n\[*\] ', '\n\[/' + element + '\]'];
 387                                         }
 388                                         else if(element === 'table') {
 389                                                 return ['\[' + element + '\]' + '\n\[tr\]', '\[/tr\]\n\[/' + element + '\]'];
 390                                         }
 391                                         else {
 392                                                 return ['\[' + element + '\]', '\[/' + element + '\]'];
 393                                         }
 394                                 }
 395                                 else {
 396                                         return '\[' + element + '\] ';
 397                                 }
 398                         }
 399                 };
 400
 401                 this.attr('autocomplete','off');
 402                 this.textcomplete([bbco], {className:'acpopup', zIndex:10000});
 403                 this.fixTextcompleteEscape();
 404
 405                 this.on('textComplete:select', function(e, value, strategy) { value; });
 406
 407                 this.keypress(function(e){
 408                         if (e.keyCode == 13) {
 409                                 var x = listNewLineAutocomplete(this.id);
 410                                 if(x) {
 411                                         e.stopImmediatePropagation();
 412                                         e.preventDefault();
 413                                 }
 414                         }
 415                 });
 416
 417                 return this;
 418         };
 419 })( jQuery );
 420 // @license-end