silverstripe-framework/thirdparty/tinymce/classes/ForceBlocks.js

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/**
* $Id: ForceBlocks.js 1137 2009-05-22 15:13:40Z spocke $
*
* @author Moxiecode
* @copyright Copyright <EFBFBD> 2004-2008, Moxiecode Systems AB, All rights reserved.
*/
(function(tinymce) {
// Shorten names
var Event, isIE, isGecko, isOpera, each, extend;
Event = tinymce.dom.Event;
isIE = tinymce.isIE;
isGecko = tinymce.isGecko;
isOpera = tinymce.isOpera;
each = tinymce.each;
extend = tinymce.extend;
function isEmpty(n) {
n = n.innerHTML;
n = n.replace(/<(img|hr|table|input|select|textarea)[ \>]/gi, '-'); // Keep these convert them to - chars
n = n.replace(/<[^>]+>/g, ''); // Remove all tags
return n.replace(/[ \t\r\n]+/g, '') == '';
};
/**
* This is a internal class and no method in this class should be called directly form the out side.
*/
tinymce.create('tinymce.ForceBlocks', {
ForceBlocks : function(ed) {
var t = this, s = ed.settings, elm;
t.editor = ed;
t.dom = ed.dom;
elm = (s.forced_root_block || 'p').toLowerCase();
s.element = elm.toUpperCase();
ed.onPreInit.add(t.setup, t);
t.reOpera = new RegExp('(\\u00a0|&#160;|&nbsp;)<\/' + elm + '>', 'gi');
t.rePadd = new RegExp('<p( )([^>]+)><\\\/p>|<p( )([^>]+)\\\/>|<p( )([^>]+)>\\s+<\\\/p>|<p><\\\/p>|<p\\\/>|<p>\\s+<\\\/p>'.replace(/p/g, elm), 'gi');
t.reNbsp2BR1 = new RegExp('<p( )([^>]+)>[\\s\\u00a0]+<\\\/p>|<p>[\\s\\u00a0]+<\\\/p>'.replace(/p/g, elm), 'gi');
t.reNbsp2BR2 = new RegExp('<%p()([^>]+)>(&nbsp;|&#160;)<\\\/%p>|<%p>(&nbsp;|&#160;)<\\\/%p>'.replace(/%p/g, elm), 'gi');
t.reBR2Nbsp = new RegExp('<p( )([^>]+)>\\s*<br \\\/>\\s*<\\\/p>|<p>\\s*<br \\\/>\\s*<\\\/p>'.replace(/p/g, elm), 'gi');
function padd(ed, o) {
if (isOpera)
o.content = o.content.replace(t.reOpera, '</' + elm + '>');
o.content = o.content.replace(t.rePadd, '<' + elm + '$1$2$3$4$5$6>\u00a0</' + elm + '>');
if (!isIE && !isOpera && o.set) {
// Use &nbsp; instead of BR in padded paragraphs
o.content = o.content.replace(t.reNbsp2BR1, '<' + elm + '$1$2><br /></' + elm + '>');
o.content = o.content.replace(t.reNbsp2BR2, '<' + elm + '$1$2><br /></' + elm + '>');
} else
o.content = o.content.replace(t.reBR2Nbsp, '<' + elm + '$1$2>\u00a0</' + elm + '>');
};
ed.onBeforeSetContent.add(padd);
ed.onPostProcess.add(padd);
if (s.forced_root_block) {
ed.onInit.add(t.forceRoots, t);
ed.onSetContent.add(t.forceRoots, t);
ed.onBeforeGetContent.add(t.forceRoots, t);
}
},
setup : function() {
var t = this, ed = t.editor, s = ed.settings;
// Force root blocks when typing and when getting output
if (s.forced_root_block) {
ed.onKeyUp.add(t.forceRoots, t);
ed.onPreProcess.add(t.forceRoots, t);
}
if (s.force_br_newlines) {
// Force IE to produce BRs on enter
if (isIE) {
ed.onKeyPress.add(function(ed, e) {
var n, s = ed.selection;
if (e.keyCode == 13 && s.getNode().nodeName != 'LI') {
s.setContent('<br id="__" /> ', {format : 'raw'});
n = ed.dom.get('__');
n.removeAttribute('id');
s.select(n);
s.collapse();
return Event.cancel(e);
}
});
}
return;
}
if (!isIE && s.force_p_newlines) {
/* ed.onPreProcess.add(function(ed, o) {
each(ed.dom.select('br', o.node), function(n) {
var p = n.parentNode;
// Replace <p><br /></p> with <p>&nbsp;</p>
if (p && p.nodeName == 'p' && (p.childNodes.length == 1 || p.lastChild == n)) {
p.replaceChild(ed.getDoc().createTextNode('\u00a0'), n);
}
});
});*/
ed.onKeyPress.add(function(ed, e) {
if (e.keyCode == 13 && !e.shiftKey) {
if (!t.insertPara(e))
Event.cancel(e);
}
});
if (isGecko) {
ed.onKeyDown.add(function(ed, e) {
if ((e.keyCode == 8 || e.keyCode == 46) && !e.shiftKey)
t.backspaceDelete(e, e.keyCode == 8);
});
}
}
function ren(rn, na) {
var ne = ed.dom.create(na);
each(rn.attributes, function(a) {
if (a.specified && a.nodeValue)
ne.setAttribute(a.nodeName.toLowerCase(), a.nodeValue);
});
each(rn.childNodes, function(n) {
ne.appendChild(n.cloneNode(true));
});
rn.parentNode.replaceChild(ne, rn);
return ne;
};
// Padd empty inline elements within block elements
// For example: <p><strong><em></em></strong></p> becomes <p><strong><em>&nbsp;</em></strong></p>
ed.onPreProcess.add(function(ed, o) {
each(ed.dom.select('p,h1,h2,h3,h4,h5,h6,div', o.node), function(p) {
if (isEmpty(p)) {
each(ed.dom.select('span,em,strong,b,i', o.node), function(n) {
if (!n.hasChildNodes()) {
n.appendChild(ed.getDoc().createTextNode('\u00a0'));
return false; // Break the loop one padding is enough
}
});
}
});
});
// IE specific fixes
if (isIE) {
// Replaces IE:s auto generated paragraphs with the specified element name
if (s.element != 'P') {
ed.onKeyPress.add(function(ed, e) {
t.lastElm = ed.selection.getNode().nodeName;
});
ed.onKeyUp.add(function(ed, e) {
var bl, sel = ed.selection, n = sel.getNode(), b = ed.getBody();
if (b.childNodes.length === 1 && n.nodeName == 'P') {
n = ren(n, s.element);
sel.select(n);
sel.collapse();
ed.nodeChanged();
} else if (e.keyCode == 13 && !e.shiftKey && t.lastElm != 'P') {
bl = ed.dom.getParent(n, 'p');
if (bl) {
ren(bl, s.element);
ed.nodeChanged();
}
}
});
}
}
},
find : function(n, t, s) {
var ed = this.editor, w = ed.getDoc().createTreeWalker(n, 4, null, false), c = -1;
while (n = w.nextNode()) {
c++;
// Index by node
if (t == 0 && n == s)
return c;
// Node by index
if (t == 1 && c == s)
return n;
}
return -1;
},
forceRoots : function(ed, e) {
var t = this, ed = t.editor, b = ed.getBody(), d = ed.getDoc(), se = ed.selection, s = se.getSel(), r = se.getRng(), si = -2, ei, so, eo, tr, c = -0xFFFFFF;
var nx, bl, bp, sp, le, nl = b.childNodes, i, n, eid;
// Fix for bug #1863847
//if (e && e.keyCode == 13)
// return true;
// Wrap non blocks into blocks
for (i = nl.length - 1; i >= 0; i--) {
nx = nl[i];
// Is text or non block element
if (nx.nodeType == 3 || (!t.dom.isBlock(nx) && nx.nodeType != 8)) {
if (!bl) {
// Create new block but ignore whitespace
if (nx.nodeType != 3 || /[^\s]/g.test(nx.nodeValue)) {
// Store selection
if (si == -2 && r) {
if (!isIE) {
// If selection is element then mark it
if (r.startContainer.nodeType == 1 && (n = r.startContainer.childNodes[r.startOffset]) && n.nodeType == 1) {
// Save the id of the selected element
eid = n.getAttribute("id");
n.setAttribute("id", "__mce");
} else {
// If element is inside body, might not be the case in contentEdiable mode
if (ed.dom.getParent(r.startContainer, function(e) {return e === b;})) {
so = r.startOffset;
eo = r.endOffset;
si = t.find(b, 0, r.startContainer);
ei = t.find(b, 0, r.endContainer);
}
}
} else {
tr = d.body.createTextRange();
tr.moveToElementText(b);
tr.collapse(1);
bp = tr.move('character', c) * -1;
tr = r.duplicate();
tr.collapse(1);
sp = tr.move('character', c) * -1;
tr = r.duplicate();
tr.collapse(0);
le = (tr.move('character', c) * -1) - sp;
si = sp - bp;
ei = le;
}
}
bl = ed.dom.create(ed.settings.forced_root_block);
bl.appendChild(nx.cloneNode(1));
nx.parentNode.replaceChild(bl, nx);
}
} else {
if (bl.hasChildNodes())
bl.insertBefore(nx, bl.firstChild);
else
bl.appendChild(nx);
}
} else
bl = null; // Time to create new block
}
// Restore selection
if (si != -2) {
if (!isIE) {
bl = b.getElementsByTagName(ed.settings.element)[0];
r = d.createRange();
// Select last location or generated block
if (si != -1)
r.setStart(t.find(b, 1, si), so);
else
r.setStart(bl, 0);
// Select last location or generated block
if (ei != -1)
r.setEnd(t.find(b, 1, ei), eo);
else
r.setEnd(bl, 0);
if (s) {
s.removeAllRanges();
s.addRange(r);
}
} else {
try {
r = s.createRange();
r.moveToElementText(b);
r.collapse(1);
r.moveStart('character', si);
r.moveEnd('character', ei);
r.select();
} catch (ex) {
// Ignore
}
}
} else if (!isIE && (n = ed.dom.get('__mce'))) {
// Restore the id of the selected element
if (eid)
n.setAttribute('id', eid);
else
n.removeAttribute('id');
// Move caret before selected element
r = d.createRange();
r.setStartBefore(n);
r.setEndBefore(n);
se.setRng(r);
}
},
getParentBlock : function(n) {
var d = this.dom;
return d.getParent(n, d.isBlock);
},
insertPara : function(e) {
var t = this, ed = t.editor, dom = ed.dom, d = ed.getDoc(), se = ed.settings, s = ed.selection.getSel(), r = s.getRangeAt(0), b = d.body;
var rb, ra, dir, sn, so, en, eo, sb, eb, bn, bef, aft, sc, ec, n, vp = dom.getViewPort(ed.getWin()), y, ch, car;
// If root blocks are forced then use Operas default behavior since it's really good
// Removed due to bug: #1853816
// if (se.forced_root_block && isOpera)
// return true;
// Setup before range
rb = d.createRange();
// If is before the first block element and in body, then move it into first block element
rb.setStart(s.anchorNode, s.anchorOffset);
rb.collapse(true);
// Setup after range
ra = d.createRange();
// If is before the first block element and in body, then move it into first block element
ra.setStart(s.focusNode, s.focusOffset);
ra.collapse(true);
// Setup start/end points
dir = rb.compareBoundaryPoints(rb.START_TO_END, ra) < 0;
sn = dir ? s.anchorNode : s.focusNode;
so = dir ? s.anchorOffset : s.focusOffset;
en = dir ? s.focusNode : s.anchorNode;
eo = dir ? s.focusOffset : s.anchorOffset;
// If selection is in empty table cell
if (sn === en && /^(TD|TH)$/.test(sn.nodeName)) {
if (sn.firstChild.nodeName == 'BR')
dom.remove(sn.firstChild); // Remove BR
// Create two new block elements
if (sn.childNodes.length == 0) {
ed.dom.add(sn, se.element, null, '<br />');
aft = ed.dom.add(sn, se.element, null, '<br />');
} else {
n = sn.innerHTML;
sn.innerHTML = '';
ed.dom.add(sn, se.element, null, n);
aft = ed.dom.add(sn, se.element, null, '<br />');
}
// Move caret into the last one
r = d.createRange();
r.selectNodeContents(aft);
r.collapse(1);
ed.selection.setRng(r);
return false;
}
// If the caret is in an invalid location in FF we need to move it into the first block
if (sn == b && en == b && b.firstChild && ed.dom.isBlock(b.firstChild)) {
sn = en = sn.firstChild;
so = eo = 0;
rb = d.createRange();
rb.setStart(sn, 0);
ra = d.createRange();
ra.setStart(en, 0);
}
// Never use body as start or end node
sn = sn.nodeName == "HTML" ? d.body : sn; // Fix for Opera bug: https://bugs.opera.com/show_bug.cgi?id=273224&comments=yes
sn = sn.nodeName == "BODY" ? sn.firstChild : sn;
en = en.nodeName == "HTML" ? d.body : en; // Fix for Opera bug: https://bugs.opera.com/show_bug.cgi?id=273224&comments=yes
en = en.nodeName == "BODY" ? en.firstChild : en;
// Get start and end blocks
sb = t.getParentBlock(sn);
eb = t.getParentBlock(en);
bn = sb ? sb.nodeName : se.element; // Get block name to create
// Return inside list use default browser behavior
if (t.dom.getParent(sb, 'ol,ul,pre'))
return true;
// If caption or absolute layers then always generate new blocks within
if (sb && (sb.nodeName == 'CAPTION' || /absolute|relative|fixed/gi.test(dom.getStyle(sb, 'position', 1)))) {
bn = se.element;
sb = null;
}
// If caption or absolute layers then always generate new blocks within
if (eb && (eb.nodeName == 'CAPTION' || /absolute|relative|fixed/gi.test(dom.getStyle(sb, 'position', 1)))) {
bn = se.element;
eb = null;
}
// Use P instead
if (/(TD|TABLE|TH|CAPTION)/.test(bn) || (sb && bn == "DIV" && /left|right/gi.test(dom.getStyle(sb, 'float', 1)))) {
bn = se.element;
sb = eb = null;
}
// Setup new before and after blocks
bef = (sb && sb.nodeName == bn) ? sb.cloneNode(0) : ed.dom.create(bn);
aft = (eb && eb.nodeName == bn) ? eb.cloneNode(0) : ed.dom.create(bn);
// Remove id from after clone
aft.removeAttribute('id');
// Is header and cursor is at the end, then force paragraph under
if (/^(H[1-6])$/.test(bn) && sn.nodeValue && so == sn.nodeValue.length)
aft = ed.dom.create(se.element);
// Find start chop node
n = sc = sn;
do {
if (n == b || n.nodeType == 9 || t.dom.isBlock(n) || /(TD|TABLE|TH|CAPTION)/.test(n.nodeName))
break;
sc = n;
} while ((n = n.previousSibling ? n.previousSibling : n.parentNode));
// Find end chop node
n = ec = en;
do {
if (n == b || n.nodeType == 9 || t.dom.isBlock(n) || /(TD|TABLE|TH|CAPTION)/.test(n.nodeName))
break;
ec = n;
} while ((n = n.nextSibling ? n.nextSibling : n.parentNode));
// Place first chop part into before block element
if (sc.nodeName == bn)
rb.setStart(sc, 0);
else
rb.setStartBefore(sc);
rb.setEnd(sn, so);
bef.appendChild(rb.cloneContents() || d.createTextNode('')); // Empty text node needed for Safari
// Place secnd chop part within new block element
try {
ra.setEndAfter(ec);
} catch(ex) {
//console.debug(s.focusNode, s.focusOffset);
}
ra.setStart(en, eo);
aft.appendChild(ra.cloneContents() || d.createTextNode('')); // Empty text node needed for Safari
// Create range around everything
r = d.createRange();
if (!sc.previousSibling && sc.parentNode.nodeName == bn) {
r.setStartBefore(sc.parentNode);
} else {
if (rb.startContainer.nodeName == bn && rb.startOffset == 0)
r.setStartBefore(rb.startContainer);
else
r.setStart(rb.startContainer, rb.startOffset);
}
if (!ec.nextSibling && ec.parentNode.nodeName == bn)
r.setEndAfter(ec.parentNode);
else
r.setEnd(ra.endContainer, ra.endOffset);
// Delete and replace it with new block elements
r.deleteContents();
if (isOpera)
ed.getWin().scrollTo(0, vp.y);
// Never wrap blocks in blocks
if (bef.firstChild && bef.firstChild.nodeName == bn)
bef.innerHTML = bef.firstChild.innerHTML;
if (aft.firstChild && aft.firstChild.nodeName == bn)
aft.innerHTML = aft.firstChild.innerHTML;
// Padd empty blocks
if (isEmpty(bef))
bef.innerHTML = '<br />';
function appendStyles(e, en) {
var nl = [], nn, n, i;
e.innerHTML = '';
// Make clones of style elements
if (se.keep_styles) {
n = en;
do {
// We only want style specific elements
if (/^(SPAN|STRONG|B|EM|I|FONT|STRIKE|U)$/.test(n.nodeName)) {
nn = n.cloneNode(false);
dom.setAttrib(nn, 'id', ''); // Remove ID since it needs to be unique
nl.push(nn);
}
} while (n = n.parentNode);
}
// Append style elements to aft
if (nl.length > 0) {
for (i = nl.length - 1, nn = e; i >= 0; i--)
nn = nn.appendChild(nl[i]);
// Padd most inner style element
nl[0].innerHTML = isOpera ? '&nbsp;' : '<br />'; // Extra space for Opera so that the caret can move there
return nl[0]; // Move caret to most inner element
} else
e.innerHTML = isOpera ? '&nbsp;' : '<br />'; // Extra space for Opera so that the caret can move there
};
// Fill empty afterblook with current style
if (isEmpty(aft))
car = appendStyles(aft, en);
// Opera needs this one backwards for older versions
if (isOpera && parseFloat(opera.version()) < 9.5) {
r.insertNode(bef);
r.insertNode(aft);
} else {
r.insertNode(aft);
r.insertNode(bef);
}
// Normalize
aft.normalize();
bef.normalize();
function first(n) {
return d.createTreeWalker(n, NodeFilter.SHOW_TEXT, null, false).nextNode() || n;
};
// Move cursor and scroll into view
r = d.createRange();
r.selectNodeContents(isGecko ? first(car || aft) : car || aft);
r.collapse(1);
s.removeAllRanges();
s.addRange(r);
// scrollIntoView seems to scroll the parent window in most browsers now including FF 3.0b4 so it's time to stop using it and do it our selfs
y = ed.dom.getPos(aft).y;
ch = aft.clientHeight;
// Is element within viewport
if (y < vp.y || y + ch > vp.y + vp.h) {
ed.getWin().scrollTo(0, y < vp.y ? y : y - vp.h + 25); // Needs to be hardcoded to roughly one line of text if a huge text block is broken into two blocks
//console.debug('SCROLL!', 'vp.y: ' + vp.y, 'y' + y, 'vp.h' + vp.h, 'clientHeight' + aft.clientHeight, 'yyy: ' + (y < vp.y ? y : y - vp.h + aft.clientHeight));
}
return false;
},
backspaceDelete : function(e, bs) {
var t = this, ed = t.editor, b = ed.getBody(), n, se = ed.selection, r = se.getRng(), sc = r.startContainer, n, w, tn;
// The caret sometimes gets stuck in Gecko if you delete empty paragraphs
// This workaround removes the element by hand and moves the caret to the previous element
if (sc && ed.dom.isBlock(sc) && !/^(TD|TH)$/.test(sc.nodeName) && bs) {
if (sc.childNodes.length == 0 || (sc.childNodes.length == 1 && sc.firstChild.nodeName == 'BR')) {
// Find previous block element
n = sc;
while ((n = n.previousSibling) && !ed.dom.isBlock(n)) ;
if (n) {
if (sc != b.firstChild) {
// Find last text node
w = ed.dom.doc.createTreeWalker(n, NodeFilter.SHOW_TEXT, null, false);
while (tn = w.nextNode())
n = tn;
// Place caret at the end of last text node
r = ed.getDoc().createRange();
r.setStart(n, n.nodeValue ? n.nodeValue.length : 0);
r.setEnd(n, n.nodeValue ? n.nodeValue.length : 0);
se.setRng(r);
// Remove the target container
ed.dom.remove(sc);
}
return Event.cancel(e);
}
}
}
// Gecko generates BR elements here and there, we don't like those so lets remove them
function handler(e) {
var pr;
e = e.target;
// A new BR was created in a block element, remove it
if (e && e.parentNode && e.nodeName == 'BR' && (n = t.getParentBlock(e))) {
pr = e.previousSibling;
Event.remove(b, 'DOMNodeInserted', handler);
// Is there whitespace at the end of the node before then we might need the pesky BR
// to place the caret at a correct location see bug: #2013943
if (pr && pr.nodeType == 3 && /\s+$/.test(pr.nodeValue))
return;
// Only remove BR elements that got inserted in the middle of the text
if (e.previousSibling || e.nextSibling)
ed.dom.remove(e);
}
};
// Listen for new nodes
Event._add(b, 'DOMNodeInserted', handler);
// Remove listener
window.setTimeout(function() {
Event._remove(b, 'DOMNodeInserted', handler);
}, 1);
}
});
})(tinymce);