// JS QuickTags version 1.2
//
// Copyright (c) 2002-2005 Alex King
// http://www.alexking.org/
//
// Licensed under the LGPL license
// http://www.gnu.org/copyleft/lesser.html
//
// **********************************************************************
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
// **********************************************************************
//
// This JavaScript will insert the tags below at the cursor position in IE and 
// Gecko-based browsers (Mozilla, Camino, Firefox, Netscape). For browsers that 
// do not support inserting at the cursor position (Safari, OmniWeb) it appends
// the tags to the end of the content.
//
// The variable 'edCanvas' must be defined as the <textarea> element you want
// to be editing in. See the accompanying 'index.html' page for an example.
//
// The file was modified by Michael K. Bergman to remove table-related HTML commands 
// and add button tooltips.  Modifications made 7/13/05.

var edButtons = new Array();
var edLinks = new Array();
var edOpenTags = new Array();

function edButton(id, display, tagStart, tagEnd, access, open, title) {
        this.id = id;                   // used to name the toolbar button
        this.display = display;         // label on button
        this.tagStart = tagStart;       // open tag
        this.tagEnd = tagEnd;           // close tag
        this.access = access;           // set to -1 if tag does not need to be closed
        this.open = open;                       // set to -1 if tag does not need to be closed
        this.title = title;             // button tooltip label
}

edButtons.push(
        new edButton(
                'ed_bold'
                ,'B'
                ,'<strong>'
                ,'</strong>'
                ,'b'
                ,''
                ,'Bold highlighted text'
        )
);

edButtons.push(
        new edButton(
                'ed_italic'
                ,'I'
                ,'<em>'
                ,'</em>'
                ,'i'
                ,''
                ,'Italicize highlighted text'
        )
);

edButtons.push(
        new edButton(
                'ed_link'
                ,'Link'
                ,''
                ,'</a>'
                ,'a'
                ,''
                ,'Define link related to highlighted text'
        )
); // special case

edButtons.push(
        new edButton(
                'ed_img'
                ,'Img'
                ,''
                ,''
                ,'m'
                ,-1
                ,'Insert picture image at cursor location'
        )
); // special case

edButtons.push(
        new edButton(
                'ed_ul'
                ,'UL'
                ,'<ul>\n'
                ,'</ul>\n\n'
                ,'u'
                ,''
                ,'Define unordered (bulleted) list for highlighted text'
        )
);

edButtons.push(
        new edButton(
                'ed_ol'
                ,'OL'
                ,'<ol>\n'
                ,'</ol>\n\n'
                ,'o'
                ,''
                ,'Define ordered (numbered) list for highlighted text'
        )
);

edButtons.push(
        new edButton(
                'ed_li'
                ,'Li'
                ,'\t<li>'
                ,'</li>\n'
                ,'l'
                ,''
                ,'Define specific list item by highlighting text'
        )
);

edButtons.push(
        new edButton(
                'ed_block'
                ,'Block'
                ,'<blockquote>'
                ,'</blockquote>'
                ,'q'
                ,''
                ,'Insert block quote for highlighted text'
        )
);

var extendedStart = edButtons.length;

// below here are the extended buttons

edButtons.push(
        new edButton(
                'ed_h3'
                ,'Heading'
                ,'<h3>'
                ,'</h3>\n\n'
                ,'3'
                ,''
                ,'Define highlighted text as a heading'
        )
);

edButtons.push(
        new edButton(
                'ed_p'
                ,'P'
                ,'<p>'
                ,'</p>\n\n'
                ,'p'
                ,''
                ,'Define highlighted text as paragraph style'
        )
);

edButtons.push(
        new edButton(
                'ed_code'
                ,'Code'
                ,'<code>'
                ,'</code>'
                ,'c'
                ,''
                ,'Define highlighted text as code style'
        )
);

edButtons.push(
        new edButton(
                'ed_pre'
                ,'Pre'
                ,'<pre>'
                ,'</pre>'
                ,''
                ,''
                ,'Define highlighted text as preformatted (fixed font) style'
        )
);

edButtons.push(
        new edButton(
                'ed_under'
                ,'U'
                ,'<u>'
                ,'</u>'
                ,''
                ,''
                ,'Underline highlighted text'
        )
);

edButtons.push(
        new edButton(
                'ed_strike'
                ,'S'
                ,'<s>'
                ,'</s>'
                ,''
                ,''
                ,'Strikethrough highlighted text'
        )
);

edButtons.push(
        new edButton(
                'ed_footnote'
                ,'Footnote'
                ,''
                ,''
                ,'f'
                ,-1
                ,'Provide a footnote for the highlighted text'
        )
);

function edLink(display, URL, newWin) {
        this.display = display;
        this.URL = URL;
        if (!newWin) {
                newWin = 0;
        }
        this.newWin = newWin;
}


edLinks[edLinks.length] = new edLink('alexking.org'
                                    ,'http://www.alexking.org/'
                                    );

function edShowButton(button, i) {
        if (button.access) {
                var accesskey = ' accesskey = "' + button.access + '"'
        }
        else {
                var accesskey = '';
        }
        switch (button.id) {
                case 'ed_img':
                        document.write('<input type="button" id="' + button.id + '" ' + accesskey + '" title="' + button.title + '" class="ed_button" onclick="edInsertImage(edCanvas);" value="' + button.display + '" />');
                        break;
                case 'ed_link':
                        document.write('<input type="button" id="' + button.id + '" ' + accesskey + '" title="' + button.title + '" class="ed_button" onclick="edInsertLink(edCanvas, ' + i + ');" value="' + button.display + '" />');
                        break;
                case 'ed_ext_link':
                        document.write('<input type="button" id="' + button.id + '" ' + accesskey + '" title="' + button.title + '" class="ed_button" onclick="edInsertExtLink(edCanvas, ' + i + ');" value="' + button.display + '" />');
                        break;
                case 'ed_footnote':
                        document.write('<input type="button" id="' + button.id + '" ' + accesskey + '" title="' + button.title + '" class="ed_button" onclick="edInsertFootnote(edCanvas);" value="' + button.display + '" />');
                        break;
                default:
                        document.write('<input type="button" id="' + button.id + '" ' + accesskey + '" title="' + button.title + '" class="ed_button" onclick="edInsertTag(edCanvas, ' + i + ');" value="' + button.display + '"  />');
                        break;
        }
}

function edShowLinks() {
        var tempStr = '<select onchange="edQuickLink(this.options[this.selectedIndex].value, this);"><option value="-1" selected>(Quick Links)</option>';
        for (i = 0; i < edLinks.length; i++) {
                tempStr += '<option value="' + i + '">' + edLinks[i].display + '</option>';
        }
        tempStr += '</select>';
        document.write(tempStr);
}

function edAddTag(button) {
        if (edButtons[button].tagEnd != '') {
                edOpenTags[edOpenTags.length] = button;
                document.getElementById(edButtons[button].id).value = '/' + document.getElementById(edButtons[button].id).value;
        }
}

function edRemoveTag(button) {
        for (i = 0; i < edOpenTags.length; i++) {
                if (edOpenTags[i] == button) {
                        edOpenTags.splice(i, 1);
                        document.getElementById(edButtons[button].id).value =           document.getElementById(edButtons[button].id).value.replace('/', '');
                }
        }
}

function edCheckOpenTags(button) {
        var tag = 0;
        for (i = 0; i < edOpenTags.length; i++) {
                if (edOpenTags[i] == button) {
                        tag++;
                }
        }
        if (tag > 0) {
                return true; // tag found
        }
        else {
                return false; // tag not found
        }
}       

function edPreview(myField) {
        text=myField.value;
        win = window.open(", ",'Preview', 'width = 500, height = 300, toolbar = no, resizeable = yes, scrollbars = yes, dependent = yes, modal = yes');
        win.document.write("<html>");
        win.document.write("<head>");
        win.document.write("<title>Preview Comment</title>");
        win.document.write("</head>");
        win.document.write("<body>");
        win.document.write(text);
        win.document.write("</body>");
        win.document.write("</html>");
}

function edCloseAllTags() {
        var count = edOpenTags.length;
        for (o = 0; o < count; o++) {
                edInsertTag(edCanvas, edOpenTags[edOpenTags.length - 1]);
        }
}

function edQuickLink(i, thisSelect) {
        if (i > -1) {
                var newWin = '';
                if (edLinks[i].newWin == 1) {
                        newWin = ' target="_blank"';
                }
                var tempStr = '<a href="' + edLinks[i].URL + '"' + newWin + '>' 
                            + edLinks[i].display
                            + '</a>';
                thisSelect.selectedIndex = 0;
                edInsertContent(edCanvas, tempStr);
        }
        else {
                thisSelect.selectedIndex = 0;
        }
}

function edSpell(myField) {
        var word = '';
        if (document.selection) {
                myField.focus();
            var sel = document.selection.createRange();
                if (sel.text.length > 0) {
                        word = sel.text;
                }
        }
        else if (myField.selectionStart || myField.selectionStart == '0') {
                var startPos = myField.selectionStart;
                var endPos = myField.selectionEnd;
                if (startPos != endPos) {
                        word = myField.value.substring(startPos, endPos);
                }
        }
        if (word == '') {
                word = prompt('Enter a word to look up:', '');
        }
        if (word != '') {
                window.open('http://www.answers.com/' + escape(word));
        }
}

function edToolbar() {
        document.write('<div id="ed_toolbar"><span>');
        for (i = 0; i < extendedStart; i++) {
                edShowButton(edButtons[i], i);
        }
        testvalue=document.text;
        if (edShowExtraCookie()) {
                document.write(
                        '<input type="button" id="ed_preview" class="ed_button" title="Preview HTML in WYSIWYG; not yet imnplemented!!" onclick="edPreview(edCanvas)"; value="Preview"/>'
                        + '<input type="button" id="ed_close" class="ed_button" title="Close all open tags" onclick="edCloseAllTags();" value="Close Tags" />'
                        + '<input type="button" id="ed_spell" class="ed_button" title="Look up spelling and definition" onclick="edSpell(edCanvas);" value="Dict" />'
                        + '<input type="button" id="ed_extra_show" class="ed_button" title="Show more buttons" onclick="edShowExtra()" value="&raquo;" style="visibility: hidden;" />'
                        + '</span><br />'
                        + '<span id="ed_extra_buttons">'
                        + '<input type="button" id="ed_extra_hide" class="ed_button" title="Show fewer buttons" onclick="edHideExtra();" value="&laquo;" />'
                );
        }
        else {
                document.write(
                        '<input type="button" id="ed_preview" class="ed_button" title="Preview HTML in WYSIWYG; not yet imnplemented!!" onclick="edPreview(edCanvas)"; value="Preview"/>'
                        + '<input type="button" id="ed_close" class="ed_button" title="Close all open tags" onclick="edCloseAllTags();" value="Close Tags" />'
                        + '<input type="button" id="ed_spell" class="ed_button" title="Look up spelling and definition" onclick="edSpell(edCanvas);" value="Dict" />'
                        + '<input type="button" id="ed_extra_show" class="ed_button" title="Show more buttons" onclick="edShowExtra()" value="&raquo;" />'
                        + '</span><br />'
                        + '<span id="ed_extra_buttons" style="display: none;">'
                        + '<input type="button" id="ed_extra_hide" class="ed_button" title="Show fewer buttons" onclick="edHideExtra();" value="&laquo;" />'
                );
        }
        for (i = extendedStart; i < edButtons.length; i++) {
                edShowButton(edButtons[i], i);
        }
        document.write('</span>');
//      edShowLinks();
        document.write('</div>');
}

function edShowExtra() {
        document.getElementById('ed_extra_show').style.visibility = 'hidden';
        document.getElementById('ed_extra_buttons').style.display = 'block';
        edSetCookie(
                'js_quicktags_extra'
                , 'show'
                , new Date("December 31, 2100")
        );
}

function edHideExtra() {
        document.getElementById('ed_extra_buttons').style.display = 'none';
        document.getElementById('ed_extra_show').style.visibility = 'visible';
        edSetCookie(
                'js_quicktags_extra'
                , 'hide'
                , new Date("December 31, 2100")
        );
}

// insertion code

function edInsertTag(myField, i) {
        //IE support
        if (document.selection) {
                myField.focus();
            sel = document.selection.createRange();
                if (sel.text.length > 0) {
                        sel.text = edButtons[i].tagStart + sel.text + edButtons[i].tagEnd;
                }
                else {
                        if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
                                sel.text = edButtons[i].tagStart;
                                edAddTag(i);
                        }
                        else {
                                sel.text = edButtons[i].tagEnd;
                                edRemoveTag(i);
                        }
                }
                myField.focus();
        }
        //MOZILLA/NETSCAPE support
        else if (myField.selectionStart || myField.selectionStart == '0') {
                var startPos = myField.selectionStart;
                var endPos = myField.selectionEnd;
                var cursorPos = endPos;
                var scrollTop = myField.scrollTop;
                if (startPos != endPos) {
                        myField.value = myField.value.substring(0, startPos)
                                      + edButtons[i].tagStart
                                      + myField.value.substring(startPos, endPos) 
                                      + edButtons[i].tagEnd
                                      + myField.value.substring(endPos, myField.value.length);
                        cursorPos += edButtons[i].tagStart.length + edButtons[i].tagEnd.length;
                }
                else {
                        if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
                                myField.value = myField.value.substring(0, startPos) 
                                              + edButtons[i].tagStart
                                              + myField.value.substring(endPos, myField.value.length);
                                edAddTag(i);
                                cursorPos = startPos + edButtons[i].tagStart.length;
                        }
                        else {
                                myField.value = myField.value.substring(0, startPos) 
                                              + edButtons[i].tagEnd
                                              + myField.value.substring(endPos, myField.value.length);
                                edRemoveTag(i);
                                cursorPos = startPos + edButtons[i].tagEnd.length;
                        }
                }
                myField.focus();
                myField.selectionStart = cursorPos;
                myField.selectionEnd = cursorPos;
                myField.scrollTop = scrollTop;
        }
        else {
                if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
                        myField.value += edButtons[i].tagStart;
                        edAddTag(i);
                }
                else {
                        myField.value += edButtons[i].tagEnd;
                        edRemoveTag(i);
                }
                myField.focus();
        }
}

function edInsertContent(myField, myValue) {
        //IE support
        if (document.selection) {
                myField.focus();
                sel = document.selection.createRange();
                sel.text = myValue;
                myField.focus();
        }
        //MOZILLA/NETSCAPE support
        else if (myField.selectionStart || myField.selectionStart == '0') {
                var startPos = myField.selectionStart;
                var endPos = myField.selectionEnd;
                var scrollTop = myField.scrollTop;
                myField.value = myField.value.substring(0, startPos)
                              + myValue 
                      + myField.value.substring(endPos, myField.value.length);
                myField.focus();
                myField.selectionStart = startPos + myValue.length;
                myField.selectionEnd = startPos + myValue.length;
                myField.scrollTop = scrollTop;
        } else {
                myField.value += myValue;
                myField.focus();
        }
}

function edInsertLink(myField, i, defaultValue) {
        if (!defaultValue) {
                defaultValue = 'http://';
        }
        if (!edCheckOpenTags(i)) {
                var URL = prompt('Enter the URL' ,defaultValue);
                if (URL) {
                        edButtons[i].tagStart = '<a href="' + URL + '">';
                        edInsertTag(myField, i);
                }
        }
        else {
                edInsertTag(myField, i);
        }
}

function edInsertExtLink(myField, i, defaultValue) {
        if (!defaultValue) {
                defaultValue = 'http://';
        }
        if (!edCheckOpenTags(i)) {
                var URL = prompt('Enter the URL' ,defaultValue);
                if (URL) {
                        edButtons[i].tagStart = '<a href="' + URL + '" rel="external">';
                        edInsertTag(myField, i);
                }
        }
        else {
                edInsertTag(myField, i);
        }
}

function edInsertImage(myField) {
        var myValue = prompt('Enter the URL of the image', 'http://');
        if (myValue) {
                myValue = '<img src="' 
                                + myValue 
                                + '" alt="' + prompt('Enter a description of the image', '') 
                                + '" />';
                edInsertContent(myField, myValue);
        }
}

function edInsertFootnote(myField) {
        var note = prompt('Enter the footnote:', '');
        if (!note || note == '') {
                return false;
        }
        var now = new Date;
        var fnId = 'fn' + now.getTime();
        var fnStart = edCanvas.value.indexOf('<ol class="footnotes">');
        if (fnStart != -1) {
                var fnStr1 = edCanvas.value.substring(0, fnStart)
                var fnStr2 = edCanvas.value.substring(fnStart, edCanvas.value.length)
                var count = countInstances(fnStr2, '<li id="') + 1;
        }
        else {
                var count = 1;
        }
        var count = '<sup><a href="#' + fnId + 'n" id="' + fnId + '" class="footnote">' + count + '</a></sup>';
        edInsertContent(edCanvas, count);
        if (fnStart != -1) {
                fnStr1 = edCanvas.value.substring(0, fnStart + count.length)
                fnStr2 = edCanvas.value.substring(fnStart + count.length, edCanvas.value.length)
        }
        else {
                var fnStr1 = edCanvas.value;
                var fnStr2 = "\n\n" + '<ol class="footnotes">' + "\n"
                           + '</ol>' + "\n";
        }
        var footnote = '        <li id="' + fnId + 'n">' + note + ' [<a href="#' + fnId + '">back</a>]</li>' + "\n"
                                 + '</ol>';
        edCanvas.value = fnStr1 + fnStr2.replace('</ol>', footnote);
}

function countInstances(string, substr) {
        var count = string.split(substr);
        return count.length - 1;
}

function edSetCookie(name, value, expires, path, domain) {
        document.cookie= name + "=" + escape(value) +
                ((expires) ? "; expires=" + expires.toGMTString() : "") +
                ((path) ? "; path=" + path : "") +
                ((domain) ? "; domain=" + domain : "");
}

function edShowExtraCookie() {
        var cookies = document.cookie.split(';');
        for (var i=0;i < cookies.length; i++) {
                var cookieData = cookies[i];
                while (cookieData.charAt(0) ==' ') {
                        cookieData = cookieData.substring(1, cookieData.length);
                }
                if (cookieData.indexOf('js_quicktags_extra') == 0) {
                        if (cookieData.substring(19, cookieData.length) == 'show') {
                                return true;
                        }
                        else {
                                return false;
                        }
                }
        }
        return false;
}