| 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++ ) {
|
|---|
| 405 | this.indexes[textIndex][i] = this.indexes[textIndex][i] + lengthDiff;
|
|---|
| 406 | }
|
|---|
| 407 | }
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|---|
