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var currentFocused;
// 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.push({
'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 );
// click tracking
if ( ( typeof $j != 'undefined' ) && ( typeof $j.trackAction != 'undefined' ) ) {
$j.trackAction( 'oldedit.' + item.speedTip.replace(/ /g, "-") );
}
return false;
};
parent.appendChild( image );
return true;
}
function mwSetupToolbar() {
var toolbar = document.getElementById( 'toolbar' );
if ( !toolbar ) {
return false;
}
// Don't generate buttons for browsers which don't fully
// support it.
// but don't assume wpTextbox1 is always here
var textboxes = document.getElementsByTagName( 'textarea' );
if ( !textboxes.length ) {
// No toolbar if we can't find any textarea
return false;
}
// Only check for selection capability if the textarea is visible - errors will occur otherwise - just because
// the textarea is not visible, doesn't mean we shouldn't build out the toolbar though - it might have been replaced
// with some other kind of control
if ( textboxes[0].style.display != 'none' ) {
if ( !( document.selection && document.selection.createRange )
&& textboxes[0].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 ) {
if ( typeof $j != 'undefined' && typeof $j.fn.textSelection != 'undefined' &&
( currentFocused.nodeName.toLowerCase() == 'iframe' || currentFocused.id == 'wpTextbox1' ) ) {
$j( '#wpTextbox1' ).textSelection(
'encapsulateSelection', { 'pre': tagOpen, 'peri': sampleText, 'post': tagClose }
);
return;
}
var txtarea;
if ( document.editform ) {
txtarea = currentFocused;
} 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( editForm && editBox && scrollTop ) {
if( scrollTop.value ) {
editBox.scrollTop = scrollTop.value;
}
addHandler( editForm, 'submit', function() {
scrollTop.value = editBox.scrollTop;
} );
}
}
hookEvent( 'load', scrollEditBox );
hookEvent( 'load', mwSetupToolbar );
hookEvent( 'load', function() {
currentFocused = document.getElementById( 'wpTextbox1' );
// http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html
// focus does not bubble normally, but using a trick we can do event delegation
// on the focus event on all text inputs to make the toolbox usable on all of them
var editForm = document.getElementById( 'editform' );
if ( !editForm ) {
return;
}
function onfocus( e ) {
var elm = e.target || e.srcElement;
if ( !elm ) {
return;
}
var tagName = elm.tagName.toLowerCase();
var type = elm.type || '';
if ( tagName !== 'textarea' && tagName !== 'input' ) {
return;
}
if ( tagName === 'input' && type.toLowerCase() !== 'text' ) {
return;
}
currentFocused = elm;
}
if ( editForm.addEventListener ) {
// Gecko, WebKit, Opera, etc... (all standards compliant browsers)
editForm.addEventListener( 'focus', onfocus, true ); // This MUST be true to work
} else if ( editForm.attachEvent ) {
// IE needs a specific trick here since it doesn't support the standard
editForm.attachEvent( 'onfocusin', function() { onfocus( event ); } );
}
// HACK: make currentFocused work with the usability iframe
// With proper focus detection support (HTML 5!) this'll be much cleaner
if ( typeof $j != 'undefined' ) {
var iframe = $j( '.wikiEditor-ui-text iframe' );
if ( iframe.length > 0 ) {
$j( iframe.get( 0 ).contentWindow.document )
.add( iframe.get( 0 ).contentWindow.document.body ) // for IE
.focus( function() { currentFocused = iframe.get( 0 ); } );
}
}
editForm
} );