js/ui/tabcompleter.js

   1 qwebirc.ui.TabCompleterFactory = new Class({
   2   initialize: function(ui) {
   3     this.ui = ui;
   4     this.reset();
   5   },
   6   tabComplete: function(textBox) {
   7     var text = textBox.value;
   8
   9     if(!$defined(this.obj)) {
  10       this.incr = 1;
  11
  12       var w = this.ui.getActiveWindow();
  13       if(!w)
  14         return;
  15
  16       var startingWord = qwebirc.util.getEnclosedWord(text, qwebirc.util.getCaretPos(textBox));
  17       var preword = "", word = "", postword = "";
  18       if($defined(startingWord)) {
  19         var preword = text.substring(0, startingWord[0]);
  20         var word = startingWord[1];
  21         var postword = text.substring(startingWord[0] + word.length);
  22       }
  23
  24       var ltext = text.toLowerCase();
  25       if(text == "") {
  26         preword = "/msg ";
  27         obj = qwebirc.ui.QueryTabCompleter;
  28       } else if(w.client.isChannel(word)) {
  29         obj = qwebirc.ui.ChannelNameTabCompleter;
  30       } else if(ltext.match(/^\/(q|query|msg) /i)) {
  31         obj = qwebirc.ui.QueryTabCompleter;
  32       } else if(w.type == qwebirc.ui.WINDOW_CHANNEL) {
  33         /* "slug[TAB]" == "slug: " */
  34         if(preword == "") {
  35           if((postword != "") && postword.charAt(0) == " ") {
  36             postword = ":" + postword;
  37           } else {
  38             postword = ": " + postword;
  39           }
  40           this.incr++;
  41         }
  42         obj = qwebirc.ui.ChannelUsersTabCompleter;
  43       } else {
  44         return;
  45       }
  46
  47       if(postword == "")
  48         postword = " ";
  49
  50       this.obj = new obj(preword, word, postword, w);
  51       if(!$defined(this.obj))
  52         return;
  53     }
  54
  55     var r = this.obj.get();
  56     if(!$defined(r))
  57       return;
  58
  59     textBox.value = r[1];
  60     qwebirc.util.setCaretPos(textBox, r[0] + this.incr);
  61   },
  62   reset: function() {
  63     this.obj = null;
  64   }
  65 });
  66
  67 qwebirc.ui.TabIterator = new Class({
  68   initialize: function(prefix, list) {
  69     this.prefix = prefix;
  70     if(!$defined(list) || list.length == 0) {
  71       this.list = null;
  72     } else {
  73       var l = [];
  74
  75       var prefixl = prefix.toIRCCompletion();
  76
  77       /* convert the nick list to IRC lower case, stripping all non letters
  78        * before comparisions */
  79       for(var i=0;i<list.length;i++) {
  80         var l2 = list[i].toIRCCompletion();
  81
  82         if(l2.startsWith(prefixl))
  83           l.push(list[i]);
  84       }
  85       this.list = l;
  86     }
  87
  88     this.pos = -1;
  89   },
  90   next: function() {
  91     /*
  92      * ideally next would do the list gubbins recursively, but no JS engine currently
  93      * support tail recursion :(
  94      */
  95     if(!$defined(this.list))
  96       return null;
  97
  98     this.pos = this.pos + 1;
  99     if(this.pos >= this.list.length)
 100       this.pos = 0;
 101
 102     return this.list[this.pos];
 103   }
 104 });
 105
 106 qwebirc.ui.BaseTabCompleter = new Class({
 107   initialize: function(prefix, existingNick, suffix, list) {
 108     this.existingNick = existingNick;
 109     this.prefix = prefix;
 110     this.suffix = suffix;
 111     this.iterator = new qwebirc.ui.TabIterator(existingNick, list);
 112   },
 113   get: function() {
 114     var n = this.iterator.next();
 115     if(!$defined(n))
 116       return null;
 117
 118     var p = this.prefix + n;
 119     return [p.length, p + this.suffix];
 120   }
 121 });
 122
 123 qwebirc.ui.QueryTabCompleter = new Class({
 124   Extends: qwebirc.ui.BaseTabCompleter,
 125   initialize: function(prefix, existingNick, suffix, window) {
 126     this.parent(prefix, existingNick, suffix, window.client.lastNicks);
 127   }
 128 });
 129
 130 qwebirc.ui.ChannelNameTabCompleter = new Class({
 131   Extends: qwebirc.ui.BaseTabCompleter,
 132   initialize: function(prefix, existingText, suffix, window) {
 133
 134     /* WTB map */
 135     var l = [];
 136     for(var c in window.client.channels)
 137       l.push(c);
 138
 139     this.parent(prefix, existingText, suffix, l);
 140   }
 141 });
 142
 143 qwebirc.ui.ChannelUsersTabCompleter = new Class({
 144   Extends: qwebirc.ui.BaseTabCompleter,
 145   initialize: function(prefix, existingText, suffix, window) {
 146     var nc = window.client.tracker.getSortedByLastSpoke(window.name);
 147
 148     this.parent(prefix, existingText, suffix, nc);
 149   }
 150 });