silverstripe-framework/thirdparty/tinymce/classes/commands/RemoveFormat.js

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/**
* $Id: EditorCommands.js 1042 2009-03-04 16:00:50Z spocke $
*
* @author Moxiecode
* @copyright Copyright <EFBFBD> 2004-2008, Moxiecode Systems AB, All rights reserved.
*/
(function(tinymce) {
function processRange(dom, start, end, callback) {
var ancestor, n, startPoint, endPoint, sib;
function findEndPoint(n, c) {
do {
if (n.parentNode == c)
return n;
n = n.parentNode;
} while(n);
};
function process(n) {
callback(n);
tinymce.walk(n, callback, 'childNodes');
};
// Find common ancestor and end points
ancestor = dom.findCommonAncestor(start, end);
startPoint = findEndPoint(start, ancestor) || start;
endPoint = findEndPoint(end, ancestor) || end;
// Process left leaf
for (n = start; n && n != startPoint; n = n.parentNode) {
for (sib = n.nextSibling; sib; sib = sib.nextSibling)
process(sib);
}
// Process middle from start to end point
if (startPoint != endPoint) {
for (n = startPoint.nextSibling; n && n != endPoint; n = n.nextSibling)
process(n);
} else
process(startPoint);
// Process right leaf
for (n = end; n && n != endPoint; n = n.parentNode) {
for (sib = n.previousSibling; sib; sib = sib.previousSibling)
process(sib);
}
};
tinymce.GlobalCommands.add('RemoveFormat', function() {
var ed = this, dom = ed.dom, s = ed.selection, r = s.getRng(1), nodes = [], bm, start, end, sc, so, ec, eo, n;
function findFormatRoot(n) {
var sp;
dom.getParent(n, function(n) {
if (dom.is(n, ed.getParam('removeformat_selector')))
sp = n;
return dom.isBlock(n);
}, ed.getBody());
return sp;
};
function collect(n) {
if (dom.is(n, ed.getParam('removeformat_selector')))
nodes.push(n);
};
function walk(n) {
collect(n);
tinymce.walk(n, collect, 'childNodes');
};
bm = s.getBookmark();
sc = r.startContainer;
ec = r.endContainer;
so = r.startOffset;
eo = r.endOffset;
sc = sc.nodeType == 1 ? sc.childNodes[Math.min(so, sc.childNodes.length - 1)] : sc;
ec = ec.nodeType == 1 ? ec.childNodes[Math.min(so == eo ? eo : eo - 1, ec.childNodes.length - 1)] : ec;
// Same container
if (sc == ec) { // TEXT_NODE
start = findFormatRoot(sc);
// Handle single text node
if (sc.nodeType == 3) {
if (start && start.nodeType == 1) { // ELEMENT
n = sc.splitText(so);
n.splitText(eo - so);
dom.split(start, n);
s.moveToBookmark(bm);
}
return;
}
// Handle single element
walk(dom.split(start, sc) || sc);
} else {
// Find start/end format root
start = findFormatRoot(sc);
end = findFormatRoot(ec);
// Split start text node
if (start) {
if (sc.nodeType == 3) { // TEXT
// Since IE doesn't support white space nodes in the DOM we need to
// add this invisible character so that the splitText function can split the contents
if (so == sc.nodeValue.length)
sc.nodeValue += '\uFEFF'; // Yet another pesky IE fix
sc = sc.splitText(so);
}
}
// Split end text node
if (end) {
if (ec.nodeType == 3) // TEXT
ec.splitText(eo);
}
// If the start and end format root is the same then we need to wrap
// the end node in a span since the split calls might change the reference
// Example: <p><b><em>x[yz<span>---</span>12]3</em></b></p>
if (start && start == end)
dom.replace(dom.create('span', {id : '__end'}, ec.cloneNode(true)), ec);
// Split all start containers down to the format root
if (start)
start = dom.split(start, sc);
else
start = sc;
// If there is a span wrapper use that one instead
if (n = dom.get('__end')) {
ec = n;
end = findFormatRoot(ec);
}
// Split all end containers down to the format root
if (end)
end = dom.split(end, ec);
else
end = ec;
// Collect nodes in between
processRange(dom, start, end, collect);
// Remove invisible character for IE workaround if we find it
if (sc.nodeValue == '\uFEFF')
sc.nodeValue = '';
// Process start/end container elements
walk(ec);
walk(sc);
}
// Remove all collected nodes
tinymce.each(nodes, function(n) {
dom.remove(n, 1);
});
// Remove leftover wrapper
dom.remove('__end', 1);
s.moveToBookmark(bm);
});
})(tinymce);