wcfsetup/install/files/js/3rdParty/codemirror/addon/edit/closetag.js

   1 /**
   2  * Tag-closer extension for CodeMirror.
   3  *
   4  * This extension adds an "autoCloseTags" option that can be set to
   5  * either true to get the default behavior, or an object to further
   6  * configure its behavior.
   7  *
   8  * These are supported options:
   9  *
  10  * `whenClosing` (default true)
  11  *   Whether to autoclose when the '/' of a closing tag is typed.
  12  * `whenOpening` (default true)
  13  *   Whether to autoclose the tag when the final '>' of an opening
  14  *   tag is typed.
  15  * `dontCloseTags` (default is empty tags for HTML, none for XML)
  16  *   An array of tag names that should not be autoclosed.
  17  * `indentTags` (default is block tags for HTML, none for XML)
  18  *   An array of tag names that should, when opened, cause a
  19  *   blank line to be added inside the tag, and the blank line and
  20  *   closing line to be indented.
  21  *
  22  * See demos/closetag.html for a usage example.
  23  */
  24
  25 (function() {
  26   CodeMirror.defineOption("autoCloseTags", false, function(cm, val, old) {
  27     if (val && (old == CodeMirror.Init || !old)) {
  28       var map = {name: "autoCloseTags"};
  29       if (typeof val != "object" || val.whenClosing)
  30         map["'/'"] = function(cm) { return autoCloseTag(cm, '/'); };
  31       if (typeof val != "object" || val.whenOpening)
  32         map["'>'"] = function(cm) { return autoCloseTag(cm, '>'); };
  33       cm.addKeyMap(map);
  34     } else if (!val && (old != CodeMirror.Init && old)) {
  35       cm.removeKeyMap("autoCloseTags");
  36     }
  37   });
  38
  39   var htmlDontClose = ["area", "base", "br", "col", "command", "embed", "hr", "img", "input", "keygen", "link", "meta", "param",
  40                        "source", "track", "wbr"];
  41   var htmlIndent = ["applet", "blockquote", "body", "button", "div", "dl", "fieldset", "form", "frameset", "h1", "h2", "h3", "h4",
  42                     "h5", "h6", "head", "html", "iframe", "layer", "legend", "object", "ol", "p", "select", "table", "ul"];
  43
  44   function autoCloseTag(cm, ch) {
  45     var pos = cm.getCursor(), tok = cm.getTokenAt(pos);
  46     var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
  47     if (inner.mode.name != "xml") return CodeMirror.Pass;
  48
  49     var opt = cm.getOption("autoCloseTags"), html = inner.mode.configuration == "html";
  50     var dontCloseTags = (typeof opt == "object" && opt.dontCloseTags) || (html && htmlDontClose);
  51     var indentTags = (typeof opt == "object" && opt.indentTags) || (html && htmlIndent);
  52
  53     if (ch == ">" && state.tagName) {
  54       var tagName = state.tagName;
  55       if (tok.end > pos.ch) tagName = tagName.slice(0, tagName.length - tok.end + pos.ch);
  56       var lowerTagName = tagName.toLowerCase();
  57       // Don't process the '>' at the end of an end-tag or self-closing tag
  58       if (tok.type == "tag" && state.type == "closeTag" ||
  59           tok.string.indexOf("/") == (tok.string.length - 1) || // match something like <someTagName />
  60           dontCloseTags && indexOf(dontCloseTags, lowerTagName) > -1)
  61         return CodeMirror.Pass;
  62
  63       var doIndent = indentTags && indexOf(indentTags, lowerTagName) > -1;
  64       var curPos = doIndent ? CodeMirror.Pos(pos.line + 1, 0) : CodeMirror.Pos(pos.line, pos.ch + 1);
  65       cm.replaceSelection(">" + (doIndent ? "\n\n" : "") + "</" + tagName + ">",
  66                           {head: curPos, anchor: curPos});
  67       if (doIndent) {
  68         cm.indentLine(pos.line + 1);
  69         cm.indentLine(pos.line + 2);
  70       }
  71       return;
  72     } else if (ch == "/" && tok.string == "<") {
  73       var tagName = state.context && state.context.tagName;
  74       if (tagName) cm.replaceSelection("/" + tagName + ">", "end");
  75       return;
  76     }
  77     return CodeMirror.Pass;
  78   }
  79
  80   function indexOf(collection, elt) {
  81     if (collection.indexOf) return collection.indexOf(elt);
  82     for (var i = 0, e = collection.length; i < e; ++i)
  83       if (collection[i] == elt) return i;
  84     return -1;
  85   }
  86 })();