www.pudn.com > BBS.rar > spellChecker.js

//////////////////////////////////////////////////// 
// spellChecker.js 
// 
// spellChecker object 
// 
// This file is sourced on web pages that have a textarea object to evaluate 
// for spelling. It includes the implementation for the spellCheckObject. 
// 
//////////////////////////////////////////////////// 
 
 
// constructor 
function spellChecker( textObject ) { 
 
	// public properties - configurable 
//	this.popUpUrl = '/speller/spellchecker.html';							// by FredCK 
	this.popUpUrl = 'fck_spellerpages/spellerpages/spellchecker.html';		// by FredCK 
	this.popUpName = 'spellchecker'; 
//	this.popUpProps = "menu=no,width=440,height=350,top=70,left=120,resizable=yes,status=yes";	// by FredCK 
	this.popUpProps = null ;																	// by FredCK 
//	this.spellCheckScript = '/speller/server-scripts/spellchecker.php';		// by FredCK 
	//this.spellCheckScript = '/cgi-bin/spellchecker.pl'; 
 
	// values used to keep track of what happened to a word 
	this.replWordFlag = "R";	// single replace 
	this.ignrWordFlag = "I";	// single ignore 
	this.replAllFlag = "RA";	// replace all occurances 
	this.ignrAllFlag = "IA";	// ignore all occurances 
	this.fromReplAll = "~RA";	// an occurance of a "replace all" word 
	this.fromIgnrAll = "~IA";	// an occurance of a "ignore all" word 
	// properties set at run time 
	this.wordFlags = new Array(); 
	this.currentTextIndex = 0; 
	this.currentWordIndex = 0; 
	this.spellCheckerWin = null; 
	this.controlWin = null; 
	this.wordWin = null; 
	this.textArea = textObject;	// deprecated 
	this.textInputs = arguments; 
 
	// private methods 
	this._spellcheck = _spellcheck; 
	this._getSuggestions = _getSuggestions; 
	this._setAsIgnored = _setAsIgnored; 
	this._getTotalReplaced = _getTotalReplaced; 
	this._setWordText = _setWordText; 
	this._getFormInputs = _getFormInputs; 
 
	// public methods 
	this.openChecker = openChecker; 
	this.startCheck = startCheck; 
	this.checkTextBoxes = checkTextBoxes; 
	this.checkTextAreas = checkTextAreas; 
	this.spellCheckAll = spellCheckAll; 
	this.ignoreWord = ignoreWord; 
	this.ignoreAll = ignoreAll; 
	this.replaceWord = replaceWord; 
	this.replaceAll = replaceAll; 
	this.terminateSpell = terminateSpell; 
	this.undo = undo; 
 
	// set the current window's "speller" property to the instance of this class. 
	// this object can now be referenced by child windows/frames. 
	window.speller = this; 
} 
 
// call this method to check all text boxes (and only text boxes) in the HTML document 
function checkTextBoxes() { 
	this.textInputs = this._getFormInputs( "^text$" ); 
	this.openChecker(); 
} 
 
// call this method to check all textareas (and only textareas ) in the HTML document 
function checkTextAreas() { 
	this.textInputs = this._getFormInputs( "^textarea$" ); 
	this.openChecker(); 
} 
 
// call this method to check all text boxes and textareas in the HTML document 
function spellCheckAll() { 
	this.textInputs = this._getFormInputs( "^text(area)?$" ); 
	this.openChecker(); 
} 
 
// call this method to check text boxe(s) and/or textarea(s) that were passed in to the 
// object's constructor or to the textInputs property 
function openChecker() { 
	this.spellCheckerWin = window.open( this.popUpUrl, this.popUpName, this.popUpProps ); 
	if( !this.spellCheckerWin.opener ) { 
		this.spellCheckerWin.opener = window; 
	} 
} 
 
function startCheck( wordWindowObj, controlWindowObj ) { 
 
	// set properties from args 
	this.wordWin = wordWindowObj; 
	this.controlWin = controlWindowObj; 
 
	// reset properties 
	this.wordWin.resetForm(); 
	this.controlWin.resetForm(); 
	this.currentTextIndex = 0; 
	this.currentWordIndex = 0; 
	// initialize the flags to an array - one element for each text input 
	this.wordFlags = new Array( this.wordWin.textInputs.length ); 
	// each element will be an array that keeps track of each word in the text 
	for( var i=0; i wi ) || i > ti ) { 
				// future word: set as "from ignore all" if 
				// 1) do not already have a flag and 
				// 2) have the same value as current word 
				if(( this.wordWin.getTextVal( i, j ) == s_word_to_repl ) 
				&& ( !this.wordFlags[i][j] )) { 
					this._setAsIgnored( i, j, this.fromIgnrAll ); 
				} 
			} 
		} 
	} 
 
	// finally, move on 
	this.currentWordIndex++; 
	this._spellcheck(); 
	return true; 
} 
 
function replaceWord() { 
	var wi = this.currentWordIndex; 
	var ti = this.currentTextIndex; 
	if( !this.wordWin ) { 
		alert( 'Error: Word frame not available.' ); 
		return false; 
	} 
	if( !this.wordWin.getTextVal( ti, wi )) { 
		alert( 'Error: "Not in dictionary" text is missing' ); 
		return false; 
	} 
	if( !this.controlWin.replacementText ) { 
		return false ; 
	} 
	var txt = this.controlWin.replacementText; 
	if( txt.value ) { 
		var newspell = new String( txt.value ); 
		if( this._setWordText( ti, wi, newspell, this.replWordFlag )) { 
			this.currentWordIndex++; 
			this._spellcheck(); 
		} 
	} 
	return true; 
} 
 
function replaceAll() { 
	var ti = this.currentTextIndex; 
	var wi = this.currentWordIndex; 
	if( !this.wordWin ) { 
		alert( 'Error: Word frame not available.' ); 
		return false; 
	} 
	var s_word_to_repl = this.wordWin.getTextVal( ti, wi ); 
	if( !s_word_to_repl ) { 
		alert( 'Error: "Not in dictionary" text is missing' ); 
		return false; 
	} 
	var txt = this.controlWin.replacementText; 
	if( !txt.value ) return false; 
	var newspell = new String( txt.value ); 
 
	// set this word as a "replace all" word. 
	this._setWordText( ti, wi, newspell, this.replAllFlag ); 
 
	// loop through all the words after this word 
	for( var i = ti; i < this.wordWin.textInputs.length; i++ ) { 
		for( var j = 0; j < this.wordWin.totalWords( i ); j++ ) { 
			if(( i == ti && j > wi ) || i > ti ) { 
				// future word: set word text to s_word_to_repl if 
				// 1) do not already have a flag and 
				// 2) have the same value as s_word_to_repl 
				if(( this.wordWin.getTextVal( i, j ) == s_word_to_repl ) 
				&& ( !this.wordFlags[i][j] )) { 
					this._setWordText( i, j, newspell, this.fromReplAll ); 
				} 
			} 
		} 
	} 
 
	// finally, move on 
	this.currentWordIndex++; 
	this._spellcheck(); 
	return true; 
} 
 
function terminateSpell() { 
	// called when we have reached the end of the spell checking. 
	var msg = "";		// by FredCK 
	var numrepl = this._getTotalReplaced(); 
	if( numrepl == 0 ) { 
		// see if there were no misspellings to begin with 
		if( !this.wordWin ) { 
			msg = ""; 
		} else { 
			if( this.wordWin.totalMisspellings() ) { 
//				msg += "No words changed.";			// by FredCK 
				msg += FCKLang.DlgSpellNoChanges ;	// by FredCK 
			} else { 
//				msg += "No misspellings found.";	// by FredCK 
				msg += FCKLang.DlgSpellNoMispell ;	// by FredCK 
			} 
		} 
	} else if( numrepl == 1 ) { 
//		msg += "One word changed.";			// by FredCK 
		msg += FCKLang.DlgSpellOneChange ;	// by FredCK 
	} else { 
//		msg += numrepl + " words changed.";	// by FredCK 
		msg += FCKLang.DlgSpellManyChanges.replace( /%1/g, numrepl ) ; 
	} 
	if( msg ) { 
//		msg += "\n";	// by FredCK 
		alert( msg ); 
	} 
 
	if( numrepl > 0 ) { 
		// update the text field(s) on the opener window 
		for( var i = 0; i < this.textInputs.length; i++ ) { 
			// this.textArea.value = this.wordWin.text; 
			if( this.wordWin ) { 
				if( this.wordWin.textInputs[i] ) { 
					this.textInputs[i].value = this.wordWin.textInputs[i]; 
				} 
			} 
		} 
	} 
 
	// return back to the calling window 
//	this.spellCheckerWin.close();					// by FredCK 
	if ( typeof( this.OnFinished ) == 'function' )	// by FredCK 
		this.OnFinished(numrepl) ;					// by FredCK 
 
	return true; 
} 
 
function undo() { 
	// skip if this is the first word! 
	var ti = this.currentTextIndex; 
	var wi = this.currentWordIndex; 
 
	if( this.wordWin.totalPreviousWords( ti, wi ) > 0 ) { 
		this.wordWin.removeFocus( ti, wi ); 
 
		// go back to the last word index that was acted upon 
		do { 
			// if the current word index is zero then reset the seed 
			if( this.currentWordIndex == 0 && this.currentTextIndex > 0 ) { 
				this.currentTextIndex--; 
				this.currentWordIndex = this.wordWin.totalWords( this.currentTextIndex )-1; 
				if( this.currentWordIndex < 0 ) this.currentWordIndex = 0; 
			} else { 
				if( this.currentWordIndex > 0 ) { 
					this.currentWordIndex--; 
				} 
			} 
		} while ( 
			this.wordWin.totalWords( this.currentTextIndex ) == 0 
			|| this.wordFlags[this.currentTextIndex][this.currentWordIndex] == this.fromIgnrAll 
			|| this.wordFlags[this.currentTextIndex][this.currentWordIndex] == this.fromReplAll 
		); 
 
		var text_idx = this.currentTextIndex; 
		var idx = this.currentWordIndex; 
		var preReplSpell = this.wordWin.originalSpellings[text_idx][idx]; 
 
		// if we got back to the first word then set the Undo button back to disabled 
		if( this.wordWin.totalPreviousWords( text_idx, idx ) == 0 ) { 
			this.controlWin.disableUndo(); 
		} 
 
		var i, j, origSpell ; 
		// examine what happened to this current word. 
		switch( this.wordFlags[text_idx][idx] ) { 
			// replace all: go through this and all the future occurances of the word 
			// and revert them all to the original spelling and clear their flags 
			case this.replAllFlag : 
				for( i = text_idx; i < this.wordWin.textInputs.length; i++ ) { 
					for( j = 0; j < this.wordWin.totalWords( i ); j++ ) { 
						if(( i == text_idx && j >= idx ) || i > text_idx ) { 
							origSpell = this.wordWin.originalSpellings[i][j]; 
							if( origSpell == preReplSpell ) { 
								this._setWordText ( i, j, origSpell, undefined ); 
							} 
						} 
					} 
				} 
				break; 
 
			// ignore all: go through all the future occurances of the word 
			// and clear their flags 
			case this.ignrAllFlag : 
				for( i = text_idx; i < this.wordWin.textInputs.length; i++ ) { 
					for( j = 0; j < this.wordWin.totalWords( i ); j++ ) { 
						if(( i == text_idx && j >= idx ) || i > text_idx ) { 
							origSpell = this.wordWin.originalSpellings[i][j]; 
							if( origSpell == preReplSpell ) { 
								this.wordFlags[i][j] = undefined; 
							} 
						} 
					} 
				} 
				break; 
 
			// replace: revert the word to its original spelling 
			case this.replWordFlag : 
				this._setWordText ( text_idx, idx, preReplSpell, undefined ); 
				break; 
		} 
 
		// For all four cases, clear the wordFlag of this word. re-start the process 
		this.wordFlags[text_idx][idx] = undefined; 
		this._spellcheck(); 
	} 
} 
 
function _spellcheck() { 
	var ww = this.wordWin; 
 
	// check if this is the last word in the current text element 
	if( this.currentWordIndex == ww.totalWords( this.currentTextIndex) ) { 
		this.currentTextIndex++; 
		this.currentWordIndex = 0; 
		// keep going if we're not yet past the last text element 
		if( this.currentTextIndex < this.wordWin.textInputs.length ) { 
			this._spellcheck(); 
			return; 
		} else { 
			this.terminateSpell(); 
			return; 
		} 
	} 
 
	// if this is after the first one make sure the Undo button is enabled 
	if( this.currentWordIndex > 0 ) { 
		this.controlWin.enableUndo(); 
	} 
 
	// skip the current word if it has already been worked on 
	if( this.wordFlags[this.currentTextIndex][this.currentWordIndex] ) { 
		// increment the global current word index and move on. 
		this.currentWordIndex++; 
		this._spellcheck(); 
	} else { 
		var evalText = ww.getTextVal( this.currentTextIndex, this.currentWordIndex ); 
		if( evalText ) { 
			this.controlWin.evaluatedText.value = evalText; 
			ww.setFocus( this.currentTextIndex, this.currentWordIndex ); 
			this._getSuggestions( this.currentTextIndex, this.currentWordIndex ); 
		} 
	} 
} 
 
function _getSuggestions( text_num, word_num ) { 
	this.controlWin.clearSuggestions(); 
	// add suggestion in list for each suggested word. 
	// get the array of suggested words out of the 
	// three-dimensional array containing all suggestions. 
	var a_suggests = this.wordWin.suggestions[text_num][word_num]; 
	if( a_suggests ) { 
		// got an array of suggestions. 
		for( var ii = 0; ii < a_suggests.length; ii++ ) { 
			this.controlWin.addSuggestion( a_suggests[ii] ); 
		} 
	} 
	this.controlWin.selectDefaultSuggestion(); 
} 
 
function _setAsIgnored( text_num, word_num, flag ) { 
	// set the UI 
	this.wordWin.removeFocus( text_num, word_num ); 
	// do the bookkeeping 
	this.wordFlags[text_num][word_num] = flag; 
	return true; 
} 
 
function _getTotalReplaced() { 
	var i_replaced = 0; 
	for( var i = 0; i < this.wordFlags.length; i++ ) { 
		for( var j = 0; j < this.wordFlags[i].length; j++ ) { 
			if(( this.wordFlags[i][j] == this.replWordFlag ) 
			|| ( this.wordFlags[i][j] == this.replAllFlag ) 
			|| ( this.wordFlags[i][j] == this.fromReplAll )) { 
				i_replaced++; 
			} 
		} 
	} 
	return i_replaced; 
} 
 
function _setWordText( text_num, word_num, newText, flag ) { 
	// set the UI and form inputs 
	this.wordWin.setText( text_num, word_num, newText ); 
	// keep track of what happened to this word: 
	this.wordFlags[text_num][word_num] = flag; 
	return true; 
} 
 
function _getFormInputs( inputPattern ) { 
	var inputs = new Array(); 
	for( var i = 0; i < document.forms.length; i++ ) { 
		for( var j = 0; j < document.forms[i].elements.length; j++ ) { 
			if( document.forms[i].elements[j].type.match( inputPattern )) { 
				inputs[inputs.length] = document.forms[i].elements[j]; 
			} 
		} 
	} 
	return inputs; 
}