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, backwards) {
   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_QUERY) {
  33         obj = qwebirc.ui.QueryNickTabCompleter;
  34       } else if(w.type == qwebirc.ui.WINDOW_CHANNEL) {
  35         /* "slug[TAB]" == "slug: " */
  36         if(preword == "") {
  37           if((postword != "") && postword.charAt(0) == " ") {
  38             postword = ":" + postword;
  39           } else {
  40             postword = ": " + postword;
  41           }
  42           this.incr++;
  43         }
  44         obj = qwebirc.ui.ChannelUsersTabCompleter;
  45       } else {
  46         return;
  47       }
  48
  49       if(postword == "")
  50         postword = " ";
  51
  52       this.obj = new obj(preword, word, postword, w);
  53       if(!$defined(this.obj))
  54         return;
  55     }
  56
  57     var r = this.obj.get(backwards);
  58     if(!$defined(r))
  59       return;
  60
  61     textBox.value = r[1];
  62     qwebirc.util.setCaretPos(textBox, r[0] + this.incr);
  63   },
  64   reset: function() {
  65     this.obj = null;
  66   }
  67 });
  68
  69 qwebirc.ui.TabIterator = new Class({
  70   initialize: function(client, prefix, list) {
  71     this.prefix = prefix;
  72     if(!$defined(list) || list.length == 0) {
  73       this.list = null;
  74     } else {
  75       var l = [];
  76
  77       var prefixl = qwebirc.irc.toIRCCompletion(client, prefix);
  78
  79       /* convert the nick list to IRC lower case, stripping all non letters
  80        * before comparisions */
  81       for(var i=0;i<list.length;i++) {
  82         var l2 = qwebirc.irc.toIRCCompletion(client, list[i]);
  83
  84         if(l2.startsWith(prefixl))
  85           l.push(list[i]);
  86       }
  87       this.list = l;
  88     }
  89
  90     this.pos = -1;
  91   },
  92   next: function() {
  93     /*
  94      * ideally next would do the list gubbins recursively, but no JS engine currently
  95      * support tail recursion :(
  96      */
  97     if(!$defined(this.list) || this.list.length == 0)
  98       return null;
  99
 100     this.pos = this.pos + 1;
 101     if(this.pos >= this.list.length)
 102       this.pos = 0;
 103
 104     return this.list[this.pos];
 105   },
 106   prev: function() {
 107     if(!$defined(this.list) || this.list.length == 0)
 108       return null;
 109
 110     this.pos = this.pos - 1;
 111     if(this.pos < 0)
 112       this.pos = this.list.length - 1;
 113
 114     return this.list[this.pos];
 115   }
 116 });
 117
 118 qwebirc.ui.BaseTabCompleter = new Class({
 119   initialize: function(client, prefix, existingNick, suffix, list) {
 120     this.existingNick = existingNick;
 121     this.prefix = prefix;
 122     this.suffix = suffix;
 123     this.iterator = new qwebirc.ui.TabIterator(client, existingNick, list);
 124   },
 125   get: function(backwards) {
 126     var n = backwards ? this.iterator.prev() : this.iterator.next();
 127     if(!$defined(n))
 128       return null;
 129
 130     var p = this.prefix + n;
 131     return [p.length, p + this.suffix];
 132   }
 133 });
 134
 135 qwebirc.ui.QueryTabCompleter = new Class({
 136   Extends: qwebirc.ui.BaseTabCompleter,
 137   initialize: function(prefix, existingNick, suffix, window) {
 138     this.parent(window.client, prefix, existingNick, suffix, window.client.lastNicks);
 139   }
 140 });
 141
 142 qwebirc.ui.QueryNickTabCompleter = new Class({
 143   Extends: qwebirc.ui.BaseTabCompleter,
 144   initialize: function(prefix, existingText, suffix, window) {
 145     var nick = window.name
 146     this.parent(window.client, prefix, existingText, suffix, [nick]);
 147   }
 148 });
 149
 150 qwebirc.ui.ChannelNameTabCompleter = new Class({
 151   Extends: qwebirc.ui.BaseTabCompleter,
 152   initialize: function(prefix, existingText, suffix, window) {
 153
 154     var wa = window.parentObject.windows.get(window.parentObject.getClientId(window.client));
 155     var l = window.client.channels.map(function(c) {
 156       var w = wa.get(c);
 157
 158       /* redundant? */
 159       if($defined(w))
 160         w = w.lastSelected;
 161
 162       return [w, c];
 163     });
 164
 165     l.sort(function(a, b) {
 166       return b[0] - a[0];
 167     });
 168
 169     var l2 = [];
 170     for(var i=0;i<l.length;i++)
 171       l2.push(l[i][1]);
 172     this.parent(window.client, prefix, existingText, suffix, l2);
 173   }
 174 });
 175
 176 qwebirc.ui.ChannelUsersTabCompleter = new Class({
 177   Extends: qwebirc.ui.BaseTabCompleter,
 178   initialize: function(prefix, existingText, suffix, window) {
 179     var nc = window.client.tracker.getSortedByLastSpokePrefix(window.name);
 180
 181     this.parent(window.client, prefix, existingText, suffix, nc);
 182   }
 183 });