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+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**
+ * Tag-closer extension for CodeMirror.
+ *
+ * This extension adds an "autoCloseTags" option that can be set to
+ * either true to get the default behavior, or an object to further
+ * configure its behavior.
+ *
+ * These are supported options:
+ *
+ * `whenClosing` (default true)
+ * Whether to autoclose when the '/' of a closing tag is typed.
+ * `whenOpening` (default true)
+ * Whether to autoclose the tag when the final '>' of an opening
+ * tag is typed.
+ * `dontCloseTags` (default is empty tags for HTML, none for XML)
+ * An array of tag names that should not be autoclosed.
+ * `indentTags` (default is block tags for HTML, none for XML)
+ * An array of tag names that should, when opened, cause a
+ * blank line to be added inside the tag, and the blank line and
+ * closing line to be indented.
+ *
+ * See demos/closetag.html for a usage example.
+ */
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("../fold/xml-fold"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "../fold/xml-fold"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ CodeMirror.defineOption("autoCloseTags", false, function(cm, val, old) {
+ if (old != CodeMirror.Init && old)
+ cm.removeKeyMap("autoCloseTags");
+ if (!val) return;
+ var map = {name: "autoCloseTags"};
+ if (typeof val != "object" || val.whenClosing)
+ map["'/'"] = function(cm) { return autoCloseSlash(cm); };
+ if (typeof val != "object" || val.whenOpening)
+ map["'>'"] = function(cm) { return autoCloseGT(cm); };
+ cm.addKeyMap(map);
+ });
+
+ var htmlDontClose = ["area", "base", "br", "col", "command", "embed", "hr", "img", "input", "keygen", "link", "meta", "param",
+ "source", "track", "wbr"];
+ var htmlIndent = ["applet", "blockquote", "body", "button", "div", "dl", "fieldset", "form", "frameset", "h1", "h2", "h3", "h4",
+ "h5", "h6", "head", "html", "iframe", "layer", "legend", "object", "ol", "p", "select", "table", "ul"];
+
+ function autoCloseGT(cm) {
+ if (cm.getOption("disableInput")) return CodeMirror.Pass;
+ var ranges = cm.listSelections(), replacements = [];
+ for (var i = 0; i < ranges.length; i++) {
+ if (!ranges[i].empty()) return CodeMirror.Pass;
+ var pos = ranges[i].head, tok = cm.getTokenAt(pos);
+ var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
+ if (inner.mode.name != "xml" || !state.tagName) return CodeMirror.Pass;
+
+ var opt = cm.getOption("autoCloseTags"), html = inner.mode.configuration == "html";
+ var dontCloseTags = (typeof opt == "object" && opt.dontCloseTags) || (html && htmlDontClose);
+ var indentTags = (typeof opt == "object" && opt.indentTags) || (html && htmlIndent);
+
+ var tagName = state.tagName;
+ if (tok.end > pos.ch) tagName = tagName.slice(0, tagName.length - tok.end + pos.ch);
+ var lowerTagName = tagName.toLowerCase();
+ // Don't process the '>' at the end of an end-tag or self-closing tag
+ if (!tagName ||
+ tok.type == "string" && (tok.end != pos.ch || !/[\"\']/.test(tok.string.charAt(tok.string.length - 1)) || tok.string.length == 1) ||
+ tok.type == "tag" && state.type == "closeTag" ||
+ tok.string.indexOf("/") == (tok.string.length - 1) || // match something like <someTagName />
+ dontCloseTags && indexOf(dontCloseTags, lowerTagName) > -1 ||
+ closingTagExists(cm, tagName, pos, state, true))
+ return CodeMirror.Pass;
+
+ var indent = indentTags && indexOf(indentTags, lowerTagName) > -1;
+ replacements[i] = {indent: indent,
+ text: ">" + (indent ? "\n\n" : "") + "</" + tagName + ">",
+ newPos: indent ? CodeMirror.Pos(pos.line + 1, 0) : CodeMirror.Pos(pos.line, pos.ch + 1)};
+ }
+
+ for (var i = ranges.length - 1; i >= 0; i--) {
+ var info = replacements[i];
+ cm.replaceRange(info.text, ranges[i].head, ranges[i].anchor, "+input");
+ var sel = cm.listSelections().slice(0);
+ sel[i] = {head: info.newPos, anchor: info.newPos};
+ cm.setSelections(sel);
+ if (info.indent) {
+ cm.indentLine(info.newPos.line, null, true);
+ cm.indentLine(info.newPos.line + 1, null, true);
+ }
+ }
+ }
+
+ function autoCloseCurrent(cm, typingSlash) {
+ var ranges = cm.listSelections(), replacements = [];
+ var head = typingSlash ? "/" : "</";
+ for (var i = 0; i < ranges.length; i++) {
+ if (!ranges[i].empty()) return CodeMirror.Pass;
+ var pos = ranges[i].head, tok = cm.getTokenAt(pos);
+ var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
+ if (typingSlash && (tok.type == "string" || tok.string.charAt(0) != "<" ||
+ tok.start != pos.ch - 1))
+ return CodeMirror.Pass;
+ // Kludge to get around the fact that we are not in XML mode
+ // when completing in JS/CSS snippet in htmlmixed mode. Does not
+ // work for other XML embedded languages (there is no general
+ // way to go from a mixed mode to its current XML state).
+ if (inner.mode.name != "xml") {
+ if (cm.getMode().name == "htmlmixed" && inner.mode.name == "javascript")
+ replacements[i] = head + "script>";
+ else if (cm.getMode().name == "htmlmixed" && inner.mode.name == "css")
+ replacements[i] = head + "style>";
+ else
+ return CodeMirror.Pass;
+ } else {
+ if (!state.context || !state.context.tagName ||
+ closingTagExists(cm, state.context.tagName, pos, state))
+ return CodeMirror.Pass;
+ replacements[i] = head + state.context.tagName + ">";
+ }
+ }
+ cm.replaceSelections(replacements, null, '+input');
+ ranges = cm.listSelections();
+ for (var i = 0; i < ranges.length; i++)
+ if (i == ranges.length - 1 || ranges[i].head.line < ranges[i + 1].head.line)
+ cm.indentLine(ranges[i].head.line);
+ }
+
+ function autoCloseSlash(cm) {
+ if (cm.getOption("disableInput")) return CodeMirror.Pass;
+ return autoCloseCurrent(cm, true);
+ }
+
+ CodeMirror.commands.closeTag = function(cm) { return autoCloseCurrent(cm); };
+
+ function indexOf(collection, elt) {
+ if (collection.indexOf) return collection.indexOf(elt);
+ for (var i = 0, e = collection.length; i < e; ++i)
+ if (collection[i] == elt) return i;
+ return -1;
+ }
+
+ // If xml-fold is loaded, we use its functionality to try and verify
+ // whether a given tag is actually unclosed.
+ function closingTagExists(cm, tagName, pos, state, newTag) {
+ if (!CodeMirror.scanForClosingTag) return false;
+ var end = Math.min(cm.lastLine() + 1, pos.line + 500);
+ var nextClose = CodeMirror.scanForClosingTag(cm, pos, null, end);
+ if (!nextClose || nextClose.tag != tagName) return false;
+ var cx = state.context;
+ // If the immediate wrapping context contains onCx instances of
+ // the same tag, a closing tag only exists if there are at least
+ // that many closing tags of that type following.
+ for (var onCx = newTag ? 1 : 0; cx && cx.tagName == tagName; cx = cx.prev) ++onCx;
+ pos = nextClose.to;
+ for (var i = 1; i < onCx; i++) {
+ var next = CodeMirror.scanForClosingTag(cm, pos, null, end);
+ if (!next || next.tag != tagName) return false;
+ pos = next.to;
+ }
+ return true;
+ }
+});