1 | ////////////////////////////////////////////////////
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2 | // wordWindow object
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3 | ////////////////////////////////////////////////////
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4 | function wordWindow() {
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5 | // private properties
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6 | this._forms = [];
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7 |
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8 | // private methods
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9 | this._getWordObject = _getWordObject;
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10 | //this._getSpellerObject = _getSpellerObject;
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11 | this._wordInputStr = _wordInputStr;
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12 | this._adjustIndexes = _adjustIndexes;
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13 | this._isWordChar = _isWordChar;
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14 | this._lastPos = _lastPos;
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15 |
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16 | // public properties
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17 | this.wordChar = /[a-zA-Z]/;
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18 | this.windowType = "wordWindow";
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19 | this.originalSpellings = new Array();
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20 | this.suggestions = new Array();
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21 | this.checkWordBgColor = "pink";
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22 | this.normWordBgColor = "white";
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23 | this.text = "";
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24 | this.textInputs = new Array();
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25 | this.indexes = new Array();
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26 | //this.speller = this._getSpellerObject();
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27 |
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28 | // public methods
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29 | this.resetForm = resetForm;
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30 | this.totalMisspellings = totalMisspellings;
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31 | this.totalWords = totalWords;
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32 | this.totalPreviousWords = totalPreviousWords;
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33 | //this.getTextObjectArray = getTextObjectArray;
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34 | this.getTextVal = getTextVal;
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35 | this.setFocus = setFocus;
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36 | this.removeFocus = removeFocus;
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37 | this.setText = setText;
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38 | //this.getTotalWords = getTotalWords;
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39 | this.writeBody = writeBody;
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40 | this.printForHtml = printForHtml;
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41 | }
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42 |
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43 | function resetForm() {
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44 | if( this._forms ) {
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45 | for( var i = 0; i < this._forms.length; i++ ) {
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46 | this._forms[i].reset();
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47 | }
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48 | }
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49 | return true;
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50 | }
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51 |
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52 | function totalMisspellings() {
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53 | var total_words = 0;
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54 | for( var i = 0; i < this.textInputs.length; i++ ) {
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55 | total_words += this.totalWords( i );
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56 | }
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57 | return total_words;
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58 | }
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59 |
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60 | function totalWords( textIndex ) {
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61 | return this.originalSpellings[textIndex].length;
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62 | }
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63 |
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64 | function totalPreviousWords( textIndex, wordIndex ) {
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65 | var total_words = 0;
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66 | for( var i = 0; i <= textIndex; i++ ) {
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67 | for( var j = 0; j < this.totalWords( i ); j++ ) {
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68 | if( i == textIndex && j == wordIndex ) {
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69 | break;
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70 | } else {
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71 | total_words++;
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72 | }
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73 | }
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74 | }
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75 | return total_words;
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76 | }
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77 |
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78 | //function getTextObjectArray() {
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79 | // return this._form.elements;
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80 | //}
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81 |
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82 | function getTextVal( textIndex, wordIndex ) {
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83 | var word = this._getWordObject( textIndex, wordIndex );
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84 | if( word ) {
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85 | return word.value;
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86 | }
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87 | }
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88 |
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89 | function setFocus( textIndex, wordIndex ) {
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90 | var word = this._getWordObject( textIndex, wordIndex );
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91 | if( word ) {
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92 | if( word.type == "text" ) {
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93 | word.focus();
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94 | word.style.backgroundColor = this.checkWordBgColor;
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95 | }
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96 | }
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97 | }
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98 |
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99 | function removeFocus( textIndex, wordIndex ) {
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100 | var word = this._getWordObject( textIndex, wordIndex );
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101 | if( word ) {
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102 | if( word.type == "text" ) {
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103 | word.blur();
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104 | word.style.backgroundColor = this.normWordBgColor;
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105 | }
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106 | }
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107 | }
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108 |
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109 | function setText( textIndex, wordIndex, newText ) {
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110 | var word = this._getWordObject( textIndex, wordIndex );
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111 | var beginStr;
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112 | var endStr;
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113 | if( word ) {
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114 | var pos = this.indexes[textIndex][wordIndex];
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115 | var oldText = word.value;
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116 | // update the text given the index of the string
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117 | beginStr = this.textInputs[textIndex].substring( 0, pos );
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118 | endStr = this.textInputs[textIndex].substring(
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119 | pos + oldText.length,
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120 | this.textInputs[textIndex].length
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121 | );
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122 | this.textInputs[textIndex] = beginStr + newText + endStr;
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123 |
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124 | // adjust the indexes on the stack given the differences in
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125 | // length between the new word and old word.
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126 | var lengthDiff = newText.length - oldText.length;
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127 | this._adjustIndexes( textIndex, wordIndex, lengthDiff );
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128 |
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129 | word.size = newText.length;
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130 | word.value = newText;
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131 | this.removeFocus( textIndex, wordIndex );
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132 | }
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133 | }
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134 |
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135 |
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136 | /* This should be more robust for extracting words from HTML.
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137 | * Many repercussions = project for another time; possibly
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138 | * make it a server side project with return of everything
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139 | * already done where only client side change (other than deleting
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140 | * the way we're processing) would be insertion of corrections into
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141 | * possible html markup within original spellings OR do it ALL
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142 | * here and give the server nothing but plain text words - MWB
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143 | * (Either way, give only plain text to spell checker)
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144 | */
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145 | // redesigned to handle plain text search failure to find words
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146 | // returned by server
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147 | function writeBody() {
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148 | var d = window.document;
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149 | d.open();
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150 |
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151 | // iterate through each text input.
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152 | for( var txtid = 0; txtid < this.textInputs.length; txtid++ ) {
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153 | d.writeln( '<form name="textInput'+txtid+'">' );
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154 | var wordtxt = this.textInputs[txtid];
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155 | //this.indexes[txtid] = []; // we'll copy after this is known
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156 | if( wordtxt ) {
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157 | var orig = this.originalSpellings[txtid];
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158 | if( !orig ) break;
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159 |
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160 | /* Create array of word locations
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161 | *
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162 | * Following logic is based on four assumptions:
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163 | * 1. Server always returns misspelled words in doc sequence
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164 | * 2. We'll never find a misspell occurrence the server didn't find.
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165 | * (but handle the exception if it happens)
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166 | * 3. Our plain text method of locating words the server found can fail
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167 | * 4. HTML is always valid
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168 | *
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169 | * We end up with arrays of only those words with their locations we could find
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170 | * using plain text search method.
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171 | */
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172 | var i,j,k;
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173 |
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174 | // initialize our locations working structure:
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175 | // serverTotal/dupFlag, totalFound/dupRef, positionArray/position
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176 | var locations = new Array(orig.length);
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177 | for(i=0;i<locations.length;i++) locations[i] = new Array(1,0,null);
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178 |
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179 | // now mark multiple misspell occurrences the server found
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180 | for(i=0;i<locations.length;i++) {
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181 | if(locations[i][0] == -1) continue; // already dup of a previous word
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182 | for(j=i+1;j<locations.length;j++) {
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183 | if(orig[j]==orig[i]) {
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184 | locations[i][0]++; // add up number server found
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185 | locations[j][0] = -1; // mark as dup reference
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186 | locations[j][1] = i; // reference to first occurrence
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187 | }
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188 | }
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189 | }
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190 |
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191 | // find all misspell locations we can with verbatim text search for each unique
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192 | // word and only search between tags.
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193 | // end up with locations[i][2] == Array of all positions we found word
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194 | var keepLooking;
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195 | var end_idx;
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196 | var begin_idx;
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197 | var tagNextStart;
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198 | for(i=0;i<locations.length;i++) {
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199 | if(locations[i][0] == -1) continue; // dup, we've already done this word
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200 | locations[i][2] = new Array();
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201 | keepLooking = true;
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202 | end_idx = 0;
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203 | tagNextStart = wordtxt.indexOf("<"); // we only look between tags
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204 | if(tagNextStart == -1) tagNextStart = wordtxt.length; // no tags
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205 | do {
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206 | begin_idx = wordtxt.indexOf( orig[i], end_idx );
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207 | if(begin_idx == -1) keepLooking = false;
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208 | else if(tagNextStart<begin_idx) { // prevents getting a FUBAR doc
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209 | end_idx=wordtxt.indexOf(">",tagNextStart+1)+1; // always found if valid html
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210 | tagNextStart=wordtxt.indexOf("<",end_idx);
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211 | if(tagNextStart == -1) tagNextStart=wordtxt.length; // no more tags
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212 | }
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213 | else if( !this._isWordChar(wordtxt.charAt(begin_idx+orig[i].length)) &&
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214 | !this._isWordChar(wordtxt.charAt(begin_idx-1)) ) {
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215 | locations[i][2].push(begin_idx);
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216 | end_idx = begin_idx + orig[i].length + 1;
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217 | }
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218 | else end_idx = begin_idx + orig[i].length + 1;
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219 | } while(keepLooking);
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220 | locations[i][1] = locations[i][2].length;
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221 | // Enforce one of our assumptions. This 'should' never happen, but if
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222 | // we found more occurances of any word than the server found,
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223 | // prevent mess up by getting rid of em
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224 | if(locations[i][1]>locations[i][0]) locations[i][1]=0;
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225 | }
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226 |
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227 | // Define all locations that have only one possibility.
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228 | // Those for which server and we found the same number of
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229 | // misspell occurrences for given misspelling of a word.
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230 | for(i=0;i<locations.length;i++) {
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231 | if(locations[i][0]==locations[i][1] && typeof(locations[i][2])=="object") {
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232 | locations[i][0]=1;
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233 | locations[i][1]=1;
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234 | var foundarray=locations[i][2];
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235 | locations[i][2]=foundarray.shift();
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236 | for(j=i+1;j<locations.length && foundarray.length>0;j++) {
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237 | if(locations[j][0] == -1 && locations[j][1]==i) {
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238 | locations[j][0]=1; // total 1
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239 | locations[j][1]=1; // found 1
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240 | locations[j][2]=foundarray.shift(); // the location
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241 | }
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242 | }
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243 | }
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244 | }
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245 |
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246 | // now reduce multiple possibilities (never a known case when using Aspell)
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247 | //
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248 | // Extract array of referenced words of which we've found
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249 | // at least one that have more locations in the original
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250 | // sequence than we could find
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251 | var multiwords = new Array(); // each item = [ref, docPosition]
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252 | for(i=0;i<locations.length;i++) {
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253 | if(locations[i][0]>locations[i][1] && locations[i][1]>0) {
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254 | for(j=0;j<locations[i][2].length;j++) {
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255 | multiwords.push(new Array(i,locations[i][2][j]));
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256 | }
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257 | locations[i][0] = -1; // mark as referenced after we've extracted info
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258 | locations[i][1] = i;
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259 | }
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260 | }
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261 |
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262 | // now sort this array by sequence we found in doc (presumably like server)
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263 | multiwords.sort(new Function("a","b","return a[1]-b[1]"));
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264 |
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265 | // Shift each location of this array to the location
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266 | // they fit in original server sequence
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267 | var keepLooking = true;
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268 | var maxcheck = true;
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269 | var minIdx = 0;
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270 | var minLoc = 0;
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271 | for(j=0;j<multiwords.length;j++) {
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272 | // check each position for this word in doc order; look for
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273 | // word location to pass minimum criteria, then look for upper
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274 | // criteria. if it doesn't fit, go to the next occurrence
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275 | for(keepLooking=true,i=minIdx;i<locations.length && keepLooking;i++) {
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276 | if(locations[i][0]==-1 && locations[i][1]==multiwords[j][0]) { // if a ref
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277 | if(multiwords[j][1]>minLoc) { // if beyond last word
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278 | for(maxcheck=true,k=i+1;k<locations.length && maxcheck;k++) {
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279 | if(locations[k][0] != -1 && locations[k][1]>0) {
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280 | if(locations[k][2]>multiwords[j][1]) { // and if before next word
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281 | locations[i][0] = 1;
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282 | locations[i][1] = 1;
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283 | locations[i][2] = multiwords[j][1];
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284 | minIdx = i+1; // no point starting next word search before here
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285 | keepLooking=false;
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286 | }
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287 | maxcheck=false;
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288 | }
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289 | }
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290 | if(maxcheck) { //nothing is after this location
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291 | locations[i][0] = 1;
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292 | locations[i][1] = 1;
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293 | locations[i][2] = multiwords[j][1];
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294 | minIdx = i+1;
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295 | keepLooking=false;
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296 | }
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297 | }
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298 | }
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299 | else if(locations[i][0] != -1) {
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300 | minLoc=locations[i][2];
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301 | minIdx=i+1; // where to start next word search
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302 | }
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303 | }
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304 | }
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305 |
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306 | // splice arrays to get rid of unfound words and their suggestions
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307 | // (should only omit words that plain text search can't find)
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308 | for(i=locations.length-1;i>=0;i--) { // reverse is simpler
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309 | if(locations[i][0] == -1 || locations[i][1]==0) { // unfound ref OR none found
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310 | locations.splice(i,1);
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311 | this.originalSpellings[txtid].splice(i,1);
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312 | this.suggestions[txtid].splice(i,1);
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313 | }
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314 | }
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315 |
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316 | // finally, write out the doc and word locations
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317 | this.indexes[txtid]= new Array(locations.length);
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318 | d.writeln('<div class="plainText">');
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319 | for(minLoc=0,i=0;i<locations.length;i++) {
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320 | this.indexes[txtid][i] = locations[i][2];
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321 | d.write(wordtxt.substring(minLoc,locations[i][2])); // before word
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322 | d.write( this._wordInputStr(this.originalSpellings[txtid][i],txtid,i)); // the word
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323 | minLoc = locations[i][2]+this.originalSpellings[txtid][i].length; // where to write from next
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324 | }
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325 | d.write(wordtxt.substring(minLoc)); // end of doc
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326 | d.writeln('</div>');
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327 | d.writeln('</form>');
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328 | }
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329 | }
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330 | d.close();
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331 |
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332 | // set the _forms property
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333 | this._forms = d.forms;
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334 |
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335 | // Replace all hyperlinks with spans without the href's that look like links.
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336 | // This prevents being able to break it by navigating the wordWindow with links.
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337 | var find = /<a(\s[^\>]*)href=\"[^\"]*\"(.*?)\<\/a\>/gi;
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338 | var repl = '<span style="color:blue;text-decoration:underline"$1$2</span>';
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339 | // memory leak for IE?
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340 | //d.body.innerHTML = d.body.innerHTML.replace(find,repl);
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341 | var doc = d.body.innerHTML.replace(find,repl);
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342 | d.body.innerHTML = doc;
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343 | }
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344 |
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345 | // return the character index in the full text after the last word we evaluated
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346 | function _lastPos( txtid, idx ) {
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347 | if( idx > 0 )
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348 | return this.indexes[txtid][idx-1] + this.originalSpellings[txtid][idx-1].length;
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349 | else
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350 | return 0;
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351 | }
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352 |
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353 | function printForHtml( n ) {
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354 | return n ; // by FredCK
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355 | /*
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356 | var htmlstr = n;
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357 | if( htmlstr.length == 1 ) {
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358 | // do simple case statement if it's just one character
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359 | switch ( n ) {
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360 | case "\n":
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361 | htmlstr = '<br/>';
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362 | break;
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363 | case "<":
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364 | htmlstr = '<';
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365 | break;
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366 | case ">":
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367 | htmlstr = '>';
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368 | break;
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369 | }
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370 | return htmlstr;
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371 | } else {
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372 | htmlstr = htmlstr.replace( /</g, '<' );
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373 | htmlstr = htmlstr.replace( />/g, '>' );
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374 | htmlstr = htmlstr.replace( /\n/g, '<br/>' );
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375 | return htmlstr;
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376 | }
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377 | */
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378 | }
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379 |
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380 | function _isWordChar( letter ) {
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381 | if( letter.search( this.wordChar ) == -1 ) {
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382 | return false;
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383 | } else {
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384 | return true;
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385 | }
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386 | }
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387 |
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388 | function _getWordObject( textIndex, wordIndex ) {
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389 | if( this._forms[textIndex] ) {
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390 | if( this._forms[textIndex].elements[wordIndex] ) {
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391 | return this._forms[textIndex].elements[wordIndex];
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392 | }
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393 | }
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394 | return null;
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395 | }
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396 |
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397 | function _wordInputStr( word ) {
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398 | var str = '<input readonly ';
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399 | str += 'class="blend" type="text" value="' + word + '" size="' + word.length + '">';
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400 | return str;
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401 | }
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402 |
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403 | function _adjustIndexes( textIndex, wordIndex, lengthDiff ) {
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404 | for( var i = wordIndex + 1; i < this.originalSpellings[textIndex].length; i++ ) {
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405 | this.indexes[textIndex][i] = this.indexes[textIndex][i] + lengthDiff;
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406 | }
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407 | }
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