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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
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3
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4 (function(mod) {
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5 if (typeof exports == "object" && typeof module == "object") // CommonJS
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6 mod(require("../../lib/codemirror"));
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7 else if (typeof define == "function" && define.amd) // AMD
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8 define(["../../lib/codemirror"], mod);
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9 else // Plain browser env
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10 mod(CodeMirror);
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11 })(function(CodeMirror) {
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12 "use strict";
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13
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14 var Pos = CodeMirror.Pos;
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15
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16 function matches(hint, typed, matchInMiddle) {
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17 if (matchInMiddle) return hint.indexOf(typed) >= 0;
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18 else return hint.lastIndexOf(typed, 0) == 0;
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19 }
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20
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21 function getHints(cm, options) {
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22 var tags = options && options.schemaInfo;
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23 var quote = (options && options.quoteChar) || '"';
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24 var matchInMiddle = options && options.matchInMiddle;
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25 if (!tags) return;
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26 var cur = cm.getCursor(), token = cm.getTokenAt(cur);
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27 if (token.end > cur.ch) {
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28 token.end = cur.ch;
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29 token.string = token.string.slice(0, cur.ch - token.start);
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30 }
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31 var inner = CodeMirror.innerMode(cm.getMode(), token.state);
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32 if (!inner.mode.xmlCurrentTag) return
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33 var result = [], replaceToken = false, prefix;
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34 var tag = /\btag\b/.test(token.type) && !/>$/.test(token.string);
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35 var tagName = tag && /^\w/.test(token.string), tagStart;
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36
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37 if (tagName) {
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38 var before = cm.getLine(cur.line).slice(Math.max(0, token.start - 2), token.start);
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39 var tagType = /<\/$/.test(before) ? "close" : /<$/.test(before) ? "open" : null;
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40 if (tagType) tagStart = token.start - (tagType == "close" ? 2 : 1);
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41 } else if (tag && token.string == "<") {
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42 tagType = "open";
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43 } else if (tag && token.string == "</") {
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44 tagType = "close";
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45 }
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46
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47 var tagInfo = inner.mode.xmlCurrentTag(inner.state)
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48 if (!tag && !tagInfo || tagType) {
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49 if (tagName)
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50 prefix = token.string;
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51 replaceToken = tagType;
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52 var context = inner.mode.xmlCurrentContext ? inner.mode.xmlCurrentContext(inner.state) : []
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53 var inner = context.length && context[context.length - 1]
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54 var curTag = inner && tags[inner]
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55 var childList = inner ? curTag && curTag.children : tags["!top"];
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56 if (childList && tagType != "close") {
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57 for (var i = 0; i < childList.length; ++i) if (!prefix || matches(childList[i], prefix, matchInMiddle))
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58 result.push("<" + childList[i]);
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59 } else if (tagType != "close") {
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60 for (var name in tags)
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61 if (tags.hasOwnProperty(name) && name != "!top" && name != "!attrs" && (!prefix || matches(name, prefix, matchInMiddle)))
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62 result.push("<" + name);
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63 }
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64 if (inner && (!prefix || tagType == "close" && matches(inner, prefix, matchInMiddle)))
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65 result.push("</" + inner + ">");
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66 } else {
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67 // Attribute completion
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68 var curTag = tagInfo && tags[tagInfo.name], attrs = curTag && curTag.attrs;
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69 var globalAttrs = tags["!attrs"];
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70 if (!attrs && !globalAttrs) return;
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71 if (!attrs) {
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72 attrs = globalAttrs;
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73 } else if (globalAttrs) { // Combine tag-local and global attributes
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74 var set = {};
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75 for (var nm in globalAttrs) if (globalAttrs.hasOwnProperty(nm)) set[nm] = globalAttrs[nm];
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76 for (var nm in attrs) if (attrs.hasOwnProperty(nm)) set[nm] = attrs[nm];
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77 attrs = set;
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78 }
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79 if (token.type == "string" || token.string == "=") { // A value
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80 var before = cm.getRange(Pos(cur.line, Math.max(0, cur.ch - 60)),
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81 Pos(cur.line, token.type == "string" ? token.start : token.end));
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82 var atName = before.match(/([^\s\u00a0=<>\"\']+)=$/), atValues;
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83 if (!atName || !attrs.hasOwnProperty(atName[1]) || !(atValues = attrs[atName[1]])) return;
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84 if (typeof atValues == 'function') atValues = atValues.call(this, cm); // Functions can be used to supply values for autocomplete widget
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85 if (token.type == "string") {
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86 prefix = token.string;
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87 var n = 0;
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88 if (/['"]/.test(token.string.charAt(0))) {
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89 quote = token.string.charAt(0);
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90 prefix = token.string.slice(1);
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91 n++;
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92 }
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93 var len = token.string.length;
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94 if (/['"]/.test(token.string.charAt(len - 1))) {
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95 quote = token.string.charAt(len - 1);
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96 prefix = token.string.substr(n, len - 2);
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97 }
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98 if (n) { // an opening quote
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99 var line = cm.getLine(cur.line);
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100 if (line.length > token.end && line.charAt(token.end) == quote) token.end++; // include a closing quote
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101 }
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102 replaceToken = true;
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103 }
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104 var returnHintsFromAtValues = function(atValues) {
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105 if (atValues)
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106 for (var i = 0; i < atValues.length; ++i) if (!prefix || matches(atValues[i], prefix, matchInMiddle))
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107 result.push(quote + atValues[i] + quote);
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108 return returnHints();
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109 };
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110 if (atValues && atValues.then) return atValues.then(returnHintsFromAtValues);
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111 return returnHintsFromAtValues(atValues);
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112 } else { // An attribute name
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113 if (token.type == "attribute") {
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114 prefix = token.string;
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115 replaceToken = true;
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116 }
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117 for (var attr in attrs) if (attrs.hasOwnProperty(attr) && (!prefix || matches(attr, prefix, matchInMiddle)))
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118 result.push(attr);
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119 }
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120 }
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121 function returnHints() {
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122 return {
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123 list: result,
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124 from: replaceToken ? Pos(cur.line, tagStart == null ? token.start : tagStart) : cur,
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125 to: replaceToken ? Pos(cur.line, token.end) : cur
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126 };
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127 }
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128 return returnHints();
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129 }
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130
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131 CodeMirror.registerHelper("hint", "xml", getHints);
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132 });
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