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// this function generates the actual toolbar buttons with localized text
// we use it to avoid creating the toolbar where javascript is not enabled
function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText, imageId) {
// Don't generate buttons for browsers which don't fully
// support it.
mwEditButtons[mwEditButtons.length] =
{"imageId": imageId,
"imageFile": imageFile,
"speedTip": speedTip,
"tagOpen": tagOpen,
"tagClose": tagClose,
"sampleText": sampleText};
}
// this function generates the actual toolbar buttons with localized text
// we use it to avoid creating the toolbar where javascript is not enabled
function mwInsertEditButton(parent, item) {
var image = document.createElement("img");
image.width = 23;
image.height = 22;
image.className = "mw-toolbar-editbutton";
if (item.imageId) image.id = item.imageId;
image.src = item.imageFile;
image.border = 0;
image.alt = item.speedTip;
image.title = item.speedTip;
image.style.cursor = "pointer";
image.onclick = function() {
insertTags(item.tagOpen, item.tagClose, item.sampleText);
return false;
};
parent.appendChild(image);
return true;
}
function mwSetupToolbar() {
var toolbar = document.getElementById('toolbar');
if (!toolbar) { return false; }
var textbox = document.getElementById('wpTextbox1');
if (!textbox) { return false; }
// Don't generate buttons for browsers which don't fully
// support it.
if (!(document.selection && document.selection.createRange)
&& textbox.selectionStart === null) {
return false;
}
for (var i = 0; i < mwEditButtons.length; i++) {
mwInsertEditButton(toolbar, mwEditButtons[i]);
}
for (var i = 0; i < mwCustomEditButtons.length; i++) {
mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
}
return true;
}
// apply tagOpen/tagClose to selection in textarea,
// use sampleText instead of selection if there is none
function insertTags(tagOpen, tagClose, sampleText) {
var txtarea;
if (document.editform) {
txtarea = document.editform.wpTextbox1;
} else {
// some alternate form? take the first one we can find
var areas = document.getElementsByTagName('textarea');
txtarea = areas[0];
}
var selText, isSample = false;
if (document.selection && document.selection.createRange) { // IE/Opera
//save window scroll position
if (document.documentElement && document.documentElement.scrollTop)
var winScroll = document.documentElement.scrollTop
else if (document.body)
var winScroll = document.body.scrollTop;
//get current selection
txtarea.focus();
var range = document.selection.createRange();
selText = range.text;
//insert tags
checkSelectedText();
range.text = tagOpen + selText + tagClose;
//mark sample text as selected
if (isSample && range.moveStart) {
if (window.opera)
tagClose = tagClose.replace(/\n/g,'');
range.moveStart('character', - tagClose.length - selText.length);
range.moveEnd('character', - tagClose.length);
}
range.select();
//restore window scroll position
if (document.documentElement && document.documentElement.scrollTop)
document.documentElement.scrollTop = winScroll
else if (document.body)
document.body.scrollTop = winScroll;
} else if (txtarea.selectionStart || txtarea.selectionStart == '0') { // Mozilla
//save textarea scroll position
var textScroll = txtarea.scrollTop;
//get current selection
txtarea.focus();
var startPos = txtarea.selectionStart;
var endPos = txtarea.selectionEnd;
selText = txtarea.value.substring(startPos, endPos);
//insert tags
checkSelectedText();
txtarea.value = txtarea.value.substring(0, startPos)
+ tagOpen + selText + tagClose
+ txtarea.value.substring(endPos, txtarea.value.length);
//set new selection
if (isSample) {
txtarea.selectionStart = startPos + tagOpen.length;
txtarea.selectionEnd = startPos + tagOpen.length + selText.length;
} else {
txtarea.selectionStart = startPos + tagOpen.length + selText.length + tagClose.length;
txtarea.selectionEnd = txtarea.selectionStart;
}
//restore textarea scroll position
txtarea.scrollTop = textScroll;
}
function checkSelectedText(){
if (!selText) {
selText = sampleText;
isSample = true;
} else if (selText.charAt(selText.length - 1) == ' ') { //exclude ending space char
selText = selText.substring(0, selText.length - 1);
tagClose += ' '
}
}
}
/**
* Restore the edit box scroll state following a preview operation,
* and set up a form submission handler to remember this state
*/
function scrollEditBox() {
var editBox = document.getElementById( 'wpTextbox1' );
var scrollTop = document.getElementById( 'wpScrolltop' );
var editForm = document.getElementById( 'editform' );
if( editBox && scrollTop ) {
if( scrollTop.value )
editBox.scrollTop = scrollTop.value;
addHandler( editForm, 'submit', function() {
document.getElementById( 'wpScrolltop' ).value = document.getElementById( 'wpTextbox1' ).scrollTop;
} );
}
}
hookEvent( 'load', scrollEditBox );
hookEvent( 'load', mwSetupToolbar );
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