// new edit toolbar used with permission
// by Alex King
// http://www.alexking.org/

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

function edButton(id, display, tagStart, tagEnd, access, open) {
       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;           // access key
       this.open = open;                       // set to -1 if tag does not need to be closed
}

function zeroise(number, threshold) {
       // FIXME: or we could use an implementation of printf in js here
       var str = number.toString();
       if (number < 0) { str = str.substr(1, str.length) }
       while (str.length < threshold) { str = "0" + str }
       if (number < 0) { str = '-' + str }
       return str;
}

var now = new Date();
var datetime = now.getFullYear() + '-' +
                               zeroise(now.getMonth() + 1, 2) + '-' +
                               zeroise(now.getDate(), 2) + 'T' +
                               zeroise(now.getHours(), 2) + ':' +
                               zeroise(now.getMinutes(), 2) + ':' +
                               zeroise(now.getSeconds() ,2) +
                               // FIXME: we could try handling timezones like +05:30 and the like
                               zeroise((now.getTimezoneOffset()/60), 2) + ':' + '00';

edButtons[edButtons.length] =
new edButton('ed_strong'
,'str'
,'<strong>'
,'</strong>'
,'b'
);

edButtons[edButtons.length] =
new edButton('ed_em'
,'em'
,'<em>'
,'</em>'
,'i'
);

edButtons[edButtons.length] =
new edButton('ed_link'
,'link'
,''
,'</a>'
,'a'
); // special case

edButtons[edButtons.length] =
new edButton('ed_block'
,'b-quote'
,'<blockquote>'
,'</blockquote>'
,'q'
);

edButtons[edButtons.length] =
new edButton('ed_del'
,'del'
,'<del datetime="' + datetime + '">'
,'</del>'
,'d'
);

edButtons[edButtons.length] =
new edButton('ed_ins'
,'ins'
,'<ins datetime="' + datetime + '">'
,'</ins>'
,'s'
);

edButtons[edButtons.length] =
new edButton('ed_img'
,'img'
,''
,''
,'m'
,-1
); // special case

edButtons[edButtons.length] =
new edButton('ed_ul'
,'ul'
,'<ul>\n'
,'</ul>\n\n'
,'u'
);

edButtons[edButtons.length] =
new edButton('ed_ol'
,'ol'
,'<ol>\n'
,'</ol>\n\n'
,'o'
);

edButtons[edButtons.length] =
new edButton('ed_li'
,'li'
,'\t<li>'
,'</li>\n'
,'l'
);

edButtons[edButtons.length] =
new edButton('ed_pre'
,'code'
,'<code>'
,'</code>'
,'c'
);

edButtons[edButtons.length] =
new edButton('ed_more'
,'more'
,'<!--more-->'
,''
,'t'
,-1
);

edButtons[edButtons.length] =
new edButton('ed_next'
,'page'
,'<!--nextpage-->'
,''
,'p'
,-1
);

// my custom quicktags

edButtons[edButtons.length] =
new edButton('ed_dropcap'
,'drop cap'
,'<span class="dropcap">'
,'</span>'
,''
);

edButtons[edButtons.length] =
new edButton('ed_floatleft'
,'floatleft'
,'<span class="floatLeft" style="width: 200px">'
,'</span>'
,''
);

edButtons[edButtons.length] =
new edButton('ed_floatright'
,'floatright'
,'<span class="floatRight" style="width: 200px">'
,'</span>'
,''
);

edButtons[edButtons.length] =
new edButton('ed_bugmenot'
,'bugmenot'
,'(<a href="http://bugmenot.com/view.php?mode=bookmarklet&url=http://www.URL.com">login</a>)'
,''
);

edButtons[edButtons.length] =
new edButton('ed_gallery_preview'
,'gallery preview'
,'<a href="#_self" onClick="openGallery(\'GALLERY URL\')"><img src="GALLERY THUMBNAIL" alt="Gallery Thumbnail" class="imgWhiteBorder" /></a>\n\n<strong>GALLERY TITLE</strong>\nGALLERY DESCRIPTION\n\n<small>(if the gallery doesn\'t appear, check your browser\'s pop-up blocking configuration)</small>'
,''
);

edButtons[edButtons.length] =
new edButton('ed_gallery_preview'
,'book review header'
,'<strong><a href="BARNES AND NOBLE URL">TITLE</a> by AUTHOR</strong>\n\n<div class="star"></div><div class="star"></div><div class="halfstar"></div><div class="emptystar"></div><div class="emptystar"></div>\n\n<div class="bookinfo">NUMBER pages\nStarted MON. DAY, YEAR\nFinished MON. DAY, YEAR</div>\n\n'
,''
);

// end custom quicktags

function edLink() {
       this.display = '';
       this.URL = '';
       this.newWin = 0;
}

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

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

function edShowButton(button, i) {
       if (button.id == 'ed_img') {
               document.write('<input type="button" id="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertImage(edCanvas);" value="' + button.display + '" />');
       }
       else if (button.id == 'ed_link') {
               document.write('<input type="button" id="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertLink(edCanvas, ' + i + ');" value="' + button.display + '" />');
       }
       else {
               document.write('<input type="button" id="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertTag(edCanvas, ' + i + ');" value="' + button.display + '"  />');
       }
}

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 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://dictionary.reference.com/search?q=' + escape(word));
       }
}

function edToolbar() {
       document.write('<div id="ed_toolbar">');
       for (i = 0; i < edButtons.length; i++) {
               edShowButton(edButtons[i], i);
       }
       document.write('<input type="button" id="ed_spell" class="ed_button" onclick="edSpell(edCanvas);" title="Dictionary lookup" value="Dict." />');
       document.write('<input type="button" id="ed_close" class="ed_button" onclick="edCloseAllTags();" title="Close all open tags" value="Close Tags" />');
       //edShowLinks(); // disabled by default
       document.write('</div>');
}

// 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;
               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;
       } 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);
       }
}

/* In the edInsertImage function, I changed myValue to what's there now.
  This is the original code:

               myValue = '<img src="'
                               + myValue
                               + '" alt="' + prompt('Enter a description of the image', '')
                               + '" />';

*/

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', '')
                               + '" class="imgWhiteBorder"'
                               + ' />';
               edInsertContent(myField, myValue);
       }
}