Mercurial > hg > OKFNAnnotator

annotate annotator_files/lib/range.js @ 4:6979313586cf

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new version of annotator.
author casties
date Mon, 27 Aug 2012 19:05:38 +0200
parents 6356e78ccf5c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 // Generated by CoffeeScript 1.3.3
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2 var Range,
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3 __hasProp = {}.hasOwnProperty,
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4 __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
3
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5
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6 Range = {};
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7
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8 Range.sniff = function(r) {
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9 if (r.commonAncestorContainer != null) {
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10 return new Range.BrowserRange(r);
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11 } else if (typeof r.start === "string") {
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12 return new Range.SerializedRange(r);
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13 } else if (r.start && typeof r.start === "object") {
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14 return new Range.NormalizedRange(r);
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15 } else {
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16 console.error(_t("Could not sniff range type"));
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17 return false;
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18 }
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19 };
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20
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21 Range.nodeFromXPath = function(xpath, root) {
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22 var customResolver, evaluateXPath, namespace, node, segment;
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23 if (root == null) {
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24 root = document;
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25 }
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26 evaluateXPath = function(xp, nsResolver) {
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27 if (nsResolver == null) {
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28 nsResolver = null;
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29 }
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30 return document.evaluate('.' + xp, root, nsResolver, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
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31 };
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32 if (!$.isXMLDoc(document.documentElement)) {
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33 return evaluateXPath(xpath);
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34 } else {
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35 customResolver = document.createNSResolver(document.ownerDocument === null ? document.documentElement : document.ownerDocument.documentElement);
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36 node = evaluateXPath(xpath, customResolver);
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37 if (!node) {
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38 xpath = ((function() {
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39 var _i, _len, _ref, _results;
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40 _ref = xpath.split('/');
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41 _results = [];
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42 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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43 segment = _ref[_i];
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44 if (segment && segment.indexOf(':') === -1) {
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45 _results.push(segment.replace(/^([a-z]+)/, 'xhtml:$1'));
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46 } else {
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47 _results.push(segment);
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48 }
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49 }
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50 return _results;
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51 })()).join('/');
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52 namespace = document.lookupNamespaceURI(null);
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53 customResolver = function(ns) {
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54 if (ns === 'xhtml') {
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55 return namespace;
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56 } else {
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57 return document.documentElement.getAttribute('xmlns:' + ns);
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58 }
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59 };
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60 node = evaluateXPath(xpath, customResolver);
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61 }
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62 return node;
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63 }
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64 };
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65
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66 Range.RangeError = (function(_super) {
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67
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68 __extends(RangeError, _super);
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69
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70 function RangeError(type, message, parent) {
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71 this.type = type;
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72 this.message = message;
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73 this.parent = parent != null ? parent : null;
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74 RangeError.__super__.constructor.call(this, this.message);
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75 }
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76
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77 return RangeError;
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78
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79 })(Error);
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80
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81 Range.BrowserRange = (function() {
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82
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83 function BrowserRange(obj) {
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84 this.commonAncestorContainer = obj.commonAncestorContainer;
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85 this.startContainer = obj.startContainer;
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86 this.startOffset = obj.startOffset;
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87 this.endContainer = obj.endContainer;
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88 this.endOffset = obj.endOffset;
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89 }
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90
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91 BrowserRange.prototype.normalize = function(root) {
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92 var it, node, nr, offset, p, r, _i, _len, _ref;
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93 if (this.tainted) {
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94 console.error(_t("You may only call normalize() once on a BrowserRange!"));
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95 return false;
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96 } else {
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97 this.tainted = true;
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98 }
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99 r = {};
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100 nr = {};
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101 _ref = ['start', 'end'];
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102 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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103 p = _ref[_i];
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104 node = this[p + 'Container'];
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105 offset = this[p + 'Offset'];
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106 if (!((node != null) && (offset != null))) {
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107 return false;
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108 }
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109 if (node.nodeType === 1) {
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110 it = node.childNodes[offset];
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111 node = it || node.childNodes[offset - 1];
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112 if (node.nodeType === 1 && !node.firstChild) {
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113 it = null;
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114 node = node.previousSibling;
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115 }
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116 while (node.nodeType !== 3) {
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117 node = node.firstChild;
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118 }
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119 offset = it ? 0 : node.nodeValue.length;
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120 }
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121 r[p] = node;
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122 r[p + 'Offset'] = offset;
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123 }
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124 nr.start = r.startOffset > 0 ? r.start.splitText(r.startOffset) : r.start;
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125 if (r.start === r.end) {
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126 if ((r.endOffset - r.startOffset) < nr.start.nodeValue.length) {
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127 nr.start.splitText(r.endOffset - r.startOffset);
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128 }
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129 nr.end = nr.start;
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130 } else {
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131 if (r.endOffset < r.end.nodeValue.length) {
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132 r.end.splitText(r.endOffset);
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133 }
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134 nr.end = r.end;
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135 }
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136 nr.commonAncestor = this.commonAncestorContainer;
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137 while (nr.commonAncestor.nodeType !== 1) {
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138 nr.commonAncestor = nr.commonAncestor.parentNode;
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139 }
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140 return new Range.NormalizedRange(nr);
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141 };
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142
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143 BrowserRange.prototype.serialize = function(root, ignoreSelector) {
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144 return this.normalize(root).serialize(root, ignoreSelector);
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145 };
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146
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147 return BrowserRange;
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148
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149 })();
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150
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151 Range.NormalizedRange = (function() {
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152
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153 function NormalizedRange(obj) {
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154 this.commonAncestor = obj.commonAncestor;
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155 this.start = obj.start;
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156 this.end = obj.end;
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157 }
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158
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159 NormalizedRange.prototype.normalize = function(root) {
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160 return this;
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161 };
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162
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163 NormalizedRange.prototype.limit = function(bounds) {
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164 var nodes, parent, startParents, _i, _len, _ref;
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165 nodes = $.grep(this.textNodes(), function(node) {
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166 return node.parentNode === bounds || $.contains(bounds, node.parentNode);
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167 });
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168 if (!nodes.length) {
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169 return null;
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170 }
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171 this.start = nodes[0];
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172 this.end = nodes[nodes.length - 1];
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173 startParents = $(this.start).parents();
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174 _ref = $(this.end).parents();
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175 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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176 parent = _ref[_i];
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177 if (startParents.index(parent) !== -1) {
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178 this.commonAncestor = parent;
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179 break;
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180 }
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181 }
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182 return this;
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183 };
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184
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185 NormalizedRange.prototype.serialize = function(root, ignoreSelector) {
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186 var end, serialization, start;
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187 serialization = function(node, isEnd) {
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188 var n, nodes, offset, origParent, textNodes, xpath, _i, _len;
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189 if (ignoreSelector) {
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190 origParent = $(node).parents(":not(" + ignoreSelector + ")").eq(0);
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191 } else {
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192 origParent = $(node).parent();
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193 }
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194 xpath = origParent.xpath(root)[0];
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195 textNodes = origParent.textNodes();
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196 nodes = textNodes.slice(0, textNodes.index(node));
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197 offset = 0;
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198 for (_i = 0, _len = nodes.length; _i < _len; _i++) {
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199 n = nodes[_i];
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200 offset += n.nodeValue.length;
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201 }
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202 if (isEnd) {
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203 return [xpath, offset + node.nodeValue.length];
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204 } else {
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205 return [xpath, offset];
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206 }
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207 };
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208 start = serialization(this.start);
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209 end = serialization(this.end, true);
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210 return new Range.SerializedRange({
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211 start: start[0],
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212 end: end[0],
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213 startOffset: start[1],
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214 endOffset: end[1]
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215 });
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216 };
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217
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218 NormalizedRange.prototype.text = function() {
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219 var node;
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220 return ((function() {
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221 var _i, _len, _ref, _results;
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222 _ref = this.textNodes();
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223 _results = [];
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224 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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225 node = _ref[_i];
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226 _results.push(node.nodeValue);
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227 }
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228 return _results;
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229 }).call(this)).join('');
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230 };
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231
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232 NormalizedRange.prototype.textNodes = function() {
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233 var end, start, textNodes, _ref;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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234 textNodes = $(this.commonAncestor).textNodes();
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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235 _ref = [textNodes.index(this.start), textNodes.index(this.end)], start = _ref[0], end = _ref[1];
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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236 return $.makeArray(textNodes.slice(start, end + 1 || 9e9));
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237 };
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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238
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239 NormalizedRange.prototype.toRange = function() {
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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240 var range;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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241 range = document.createRange();
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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242 range.setStartBefore(this.start);
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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243 range.setEndAfter(this.end);
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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244 return range;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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245 };
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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246
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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247 return NormalizedRange;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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248
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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249 })();
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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250
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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251 Range.SerializedRange = (function() {
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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252
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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253 function SerializedRange(obj) {
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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254 this.start = obj.start;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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255 this.startOffset = obj.startOffset;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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256 this.end = obj.end;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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257 this.endOffset = obj.endOffset;
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258 }
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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259
4
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diff changeset
260 SerializedRange.prototype.normalize = function(root) {
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diff changeset
261 var contains, length, node, p, range, tn, _i, _j, _len, _len1, _ref, _ref1;
6979313586cf new version of annotator.
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diff changeset
262 range = {};
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diff changeset
263 _ref = ['start', 'end'];
6979313586cf new version of annotator.
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diff changeset
264 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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265 p = _ref[_i];
6979313586cf new version of annotator.
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diff changeset
266 try {
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diff changeset
267 node = Range.nodeFromXPath(this[p], root);
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268 } catch (e) {
6979313586cf new version of annotator.
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269 throw new Range.RangeError(p, ("Error while finding " + p + " node: " + this[p] + ": ") + e, e);
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diff changeset
270 }
3
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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271 if (!node) {
4
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272 throw new Range.RangeError(p, "Couldn't find " + p + " node: " + this[p]);
3
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273 }
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274 length = 0;
4
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275 _ref1 = $(node).textNodes();
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276 for (_j = 0, _len1 = _ref1.length; _j < _len1; _j++) {
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diff changeset
277 tn = _ref1[_j];
3
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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278 if (length + tn.nodeValue.length >= this[p + 'Offset']) {
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279 range[p + 'Container'] = tn;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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280 range[p + 'Offset'] = this[p + 'Offset'] - length;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
281 break;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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282 } else {
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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283 length += tn.nodeValue.length;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
284 }
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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285 }
4
6979313586cf new version of annotator.
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diff changeset
286 if (!(range[p + 'Offset'] != null)) {
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diff changeset
287 throw new Range.RangeError("" + p + "offset", "Couldn't find offset " + this[p + 'Offset'] + " in element " + this[p]);
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diff changeset
288 }
3
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diff changeset
289 }
4
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diff changeset
290 contains = !(document.compareDocumentPosition != null) ? function(a, b) {
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diff changeset
291 return a.contains(b);
6979313586cf new version of annotator.
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diff changeset
292 } : function(a, b) {
6979313586cf new version of annotator.
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diff changeset
293 return a.compareDocumentPosition(b) & 16;
6979313586cf new version of annotator.
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diff changeset
294 };
6979313586cf new version of annotator.
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diff changeset
295 $(range.startContainer).parents().reverse().each(function() {
6979313586cf new version of annotator.
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diff changeset
296 if (contains(this, range.endContainer)) {
6979313586cf new version of annotator.
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diff changeset
297 range.commonAncestorContainer = this;
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diff changeset
298 return false;
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diff changeset
299 }
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diff changeset
300 });
3
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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301 return new Range.BrowserRange(range).normalize(root);
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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302 };
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
303
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
304 SerializedRange.prototype.serialize = function(root, ignoreSelector) {
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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305 return this.normalize(root).serialize(root, ignoreSelector);
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
306 };
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
307
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
308 SerializedRange.prototype.toObject = function() {
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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309 return {
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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310 start: this.start,
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
311 startOffset: this.startOffset,
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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312 end: this.end,
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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313 endOffset: this.endOffset
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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314 };
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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diff changeset
315 };
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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316
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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317 return SerializedRange;
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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318
6356e78ccf5c new version contains Annotator JS files to be used with FilesystemSite.
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319 })();