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

   1 (function(mod) {
   2   if (typeof exports == "object" && typeof module == "object") // CommonJS
   3     mod(require("../../lib/codemirror"), require("../fold/xml-fold"));
   4   else if (typeof define == "function" && define.amd) // AMD
   5     define(["../../lib/codemirror", "../fold/xml-fold"], mod);
   6   else // Plain browser env
   7     mod(CodeMirror);
   8 })(function(CodeMirror) {
   9   "use strict";
  10
  11   CodeMirror.defineOption("matchTags", false, function(cm, val, old) {
  12     if (old && old != CodeMirror.Init) {
  13       cm.off("cursorActivity", doMatchTags);
  14       cm.off("viewportChange", maybeUpdateMatch);
  15       clear(cm);
  16     }
  17     if (val) {
  18       cm.state.matchBothTags = typeof val == "object" && val.bothTags;
  19       cm.on("cursorActivity", doMatchTags);
  20       cm.on("viewportChange", maybeUpdateMatch);
  21       doMatchTags(cm);
  22     }
  23   });
  24
  25   function clear(cm) {
  26     if (cm.state.tagHit) cm.state.tagHit.clear();
  27     if (cm.state.tagOther) cm.state.tagOther.clear();
  28     cm.state.tagHit = cm.state.tagOther = null;
  29   }
  30
  31   function doMatchTags(cm) {
  32     cm.state.failedTagMatch = false;
  33     cm.operation(function() {
  34       clear(cm);
  35       if (cm.somethingSelected()) return;
  36       var cur = cm.getCursor(), range = cm.getViewport();
  37       range.from = Math.min(range.from, cur.line); range.to = Math.max(cur.line + 1, range.to);
  38       var match = CodeMirror.findMatchingTag(cm, cur, range);
  39       if (!match) return;
  40       if (cm.state.matchBothTags) {
  41         var hit = match.at == "open" ? match.open : match.close;
  42         if (hit) cm.state.tagHit = cm.markText(hit.from, hit.to, {className: "CodeMirror-matchingtag"});
  43       }
  44       var other = match.at == "close" ? match.open : match.close;
  45       if (other)
  46         cm.state.tagOther = cm.markText(other.from, other.to, {className: "CodeMirror-matchingtag"});
  47       else
  48         cm.state.failedTagMatch = true;
  49     });
  50   }
  51
  52   function maybeUpdateMatch(cm) {
  53     if (cm.state.failedTagMatch) doMatchTags(cm);
  54   }
  55
  56   CodeMirror.commands.toMatchingTag = function(cm) {
  57     var found = CodeMirror.findMatchingTag(cm, cm.getCursor());
  58     if (found) {
  59       var other = found.at == "close" ? found.open : found.close;
  60       if (other) cm.extendSelection(other.to, other.from);
  61     }
  62   };
  63 });