/**
* editor_plugin_src.js
*
* Copyright 2009, Moxiecode Systems AB
* Released under LGPL License.
*
* License: http://tinymce.moxiecode.com/license
* Contributing: http://tinymce.moxiecode.com/contributing
*/
(function() {
var TreeWalker = tinymce.dom.TreeWalker;
var externalName = 'contenteditable', internalName = 'data-mce-' + externalName;
var VK = tinymce.VK;
function handleContentEditableSelection(ed) {
var dom = ed.dom, selection = ed.selection, invisibleChar, caretContainerId = 'mce_noneditablecaret';
// Setup invisible character use zero width space on Gecko since it doesn't change the height of the container
invisibleChar = tinymce.isGecko ? '\u200B' : '\uFEFF';
// Returns the content editable state of a node "true/false" or null
function getContentEditable(node) {
var contentEditable;
// Ignore non elements
if (node.nodeType === 1) {
// Check for fake content editable
contentEditable = node.getAttribute(internalName);
if (contentEditable && contentEditable !== "inherit") {
return contentEditable;
}
// Check for real content editable
contentEditable = node.contentEditable;
if (contentEditable !== "inherit") {
return contentEditable;
}
}
return null;
};
// Returns the noneditable parent or null if there is a editable before it or if it wasn't found
function getNonEditableParent(node) {
var state;
while (node) {
state = getContentEditable(node);
if (state) {
return state === "false" ? node : null;
}
node = node.parentNode;
}
};
// Get caret container parent for the specified node
function getParentCaretContainer(node) {
while (node) {
if (node.id === caretContainerId) {
return node;
}
node = node.parentNode;
}
};
// Finds the first text node in the specified node
function findFirstTextNode(node) {
var walker;
if (node) {
walker = new TreeWalker(node, node);
for (node = walker.current(); node; node = walker.next()) {
if (node.nodeType === 3) {
return node;
}
}
}
};
// Insert caret container before/after target or expand selection to include block
function insertCaretContainerOrExpandToBlock(target, before) {
var caretContainer, rng;
// Select block
if (getContentEditable(target) === "false") {
if (dom.isBlock(target)) {
selection.select(target);
return;
}
}
rng = dom.createRng();
if (getContentEditable(target) === "true") {
if (!target.firstChild) {
target.appendChild(ed.getDoc().createTextNode('\u00a0'));
}
target = target.firstChild;
before = true;
}
//caretContainer = dom.create('span', {id: caretContainerId, 'data-mce-bogus': true, style:'border: 1px solid red'}, invisibleChar);
caretContainer = dom.create('span', {id: caretContainerId, 'data-mce-bogus': true}, invisibleChar);
if (before) {
target.parentNode.insertBefore(caretContainer, target);
} else {
dom.insertAfter(caretContainer, target);
}
rng.setStart(caretContainer.firstChild, 1);
rng.collapse(true);
selection.setRng(rng);
return caretContainer;
};
// Removes any caret container except the one we might be in
function removeCaretContainer(caretContainer) {
var child, currentCaretContainer, lastContainer;
if (caretContainer) {
rng = selection.getRng(true);
rng.setStartBefore(caretContainer);
rng.setEndBefore(caretContainer);
child = findFirstTextNode(caretContainer);
if (child && child.nodeValue.charAt(0) == invisibleChar) {
child = child.deleteData(0, 1);
}
dom.remove(caretContainer, true);
selection.setRng(rng);
} else {
currentCaretContainer = getParentCaretContainer(selection.getStart());
while ((caretContainer = dom.get(caretContainerId)) && caretContainer !== lastContainer) {
if (currentCaretContainer !== caretContainer) {
child = findFirstTextNode(caretContainer);
if (child && child.nodeValue.charAt(0) == invisibleChar) {
child = child.deleteData(0, 1);
}
dom.remove(caretContainer, true);
}
lastContainer = caretContainer;
}
}
};
// Modifies the selection to include contentEditable false elements or insert caret containers
function moveSelection() {
var nonEditableStart, nonEditableEnd, isCollapsed, rng, element;
// Checks if there is any contents to the left/right side of caret returns the noneditable element or any editable element if it finds one inside
function hasSideContent(element, left) {
var container, offset, walker, node, len;
container = rng.startContainer;
offset = rng.startOffset;
// If endpoint is in middle of text node then expand to beginning/end of element
if (container.nodeType == 3) {
len = container.nodeValue.length;
if ((offset > 0 && offset < len) || (left ? offset == len : offset == 0)) {
return;
}
} else {
// Can we resolve the node by index
if (offset < container.childNodes.length) {
// Browser represents caret position as the offset at the start of an element. When moving right
// this is the element we are moving into so we consider our container to be child node at offset-1
var pos = !left && offset > 0 ? offset-1 : offset;
container = container.childNodes[pos];
if (container.hasChildNodes()) {
container = container.firstChild;
}
} else {
// If not then the caret is at the last position in it's container and the caret container should be inserted after the noneditable element
return !left ? element : null;
}
}
// Walk left/right to look for contents
walker = new TreeWalker(container, element);
while (node = walker[left ? 'prev' : 'next']()) {
if (node.nodeType === 3 && node.nodeValue.length > 0) {
return;
} else if (getContentEditable(node) === "true") {
// Found contentEditable=true element return this one to we can move the caret inside it
return node;
}
}
return element;
};
// Remove any existing caret containers
removeCaretContainer();
// Get noneditable start/end elements
isCollapsed = selection.isCollapsed();
nonEditableStart = getNonEditableParent(selection.getStart());
nonEditableEnd = getNonEditableParent(selection.getEnd());
// Is any fo the range endpoints noneditable
if (nonEditableStart || nonEditableEnd) {
rng = selection.getRng(true);
// If it's a caret selection then look left/right to see if we need to move the caret out side or expand
if (isCollapsed) {
nonEditableStart = nonEditableStart || nonEditableEnd;
var start = selection.getStart();
if (element = hasSideContent(nonEditableStart, true)) {
// We have no contents to the left of the caret then insert a caret container before the noneditable element
insertCaretContainerOrExpandToBlock(element, true);
} else if (element = hasSideContent(nonEditableStart, false)) {
// We have no contents to the right of the caret then insert a caret container after the noneditable element
insertCaretContainerOrExpandToBlock(element, false);
} else {
// We are in the middle of a noneditable so expand to select it
selection.select(nonEditableStart);
}
} else {
rng = selection.getRng(true);
// Expand selection to include start non editable element
if (nonEditableStart) {
rng.setStartBefore(nonEditableStart);
}
// Expand selection to include end non editable element
if (nonEditableEnd) {
rng.setEndAfter(nonEditableEnd);
}
selection.setRng(rng);
}
}
};
function handleKey(ed, e) {
var keyCode = e.keyCode, nonEditableParent, caretContainer, startElement, endElement;
function getNonEmptyTextNodeSibling(node, prev) {
while (node = node[prev ? 'previousSibling' : 'nextSibling']) {
if (node.nodeType !== 3 || node.nodeValue.length > 0) {
return node;
}
}
};
function positionCaretOnElement(element, start) {
selection.select(element);
selection.collapse(start);
}
startElement = selection.getStart()
endElement = selection.getEnd();
// Disable all key presses in contentEditable=false except delete or backspace
nonEditableParent = getNonEditableParent(startElement) || getNonEditableParent(endElement);
if (nonEditableParent && (keyCode < 112 || keyCode > 124) && keyCode != VK.DELETE && keyCode != VK.BACKSPACE) {
// Is Ctrl+c, Ctrl+v or Ctrl+x then use default browser behavior
if ((tinymce.isMac ? e.metaKey : e.ctrlKey) && (keyCode == 67 || keyCode == 88 || keyCode == 86)) {
return;
}
e.preventDefault();
// Arrow left/right select the element and collapse left/right
if (keyCode == VK.LEFT || keyCode == VK.RIGHT) {
var left = keyCode == VK.LEFT;
// If a block element find previous or next element to position the caret
if (ed.dom.isBlock(nonEditableParent)) {
var targetElement = left ? nonEditableParent.previousSibling : nonEditableParent.nextSibling;
var walker = new TreeWalker(targetElement, targetElement);
var caretElement = left ? walker.prev() : walker.next();
positionCaretOnElement(caretElement, !left);
} else {
positionCaretOnElement(nonEditableParent, left);
}
}
} else {
// Is arrow left/right, backspace or delete
if (keyCode == VK.LEFT || keyCode == VK.RIGHT || keyCode == VK.BACKSPACE || keyCode == VK.DELETE) {
caretContainer = getParentCaretContainer(startElement);
if (caretContainer) {
// Arrow left or backspace
if (keyCode == VK.LEFT || keyCode == VK.BACKSPACE) {
nonEditableParent = getNonEmptyTextNodeSibling(caretContainer, true);
if (nonEditableParent && getContentEditable(nonEditableParent) === "false") {
e.preventDefault();
if (keyCode == VK.LEFT) {
positionCaretOnElement(nonEditableParent, true);
} else {
dom.remove(nonEditableParent);
}
} else {
removeCaretContainer(caretContainer);
}
}
// Arrow right or delete
if (keyCode == VK.RIGHT || keyCode == VK.DELETE) {
nonEditableParent = getNonEmptyTextNodeSibling(caretContainer);
if (nonEditableParent && getContentEditable(nonEditableParent) === "false") {
e.preventDefault();
if (keyCode == VK.RIGHT) {
positionCaretOnElement(nonEditableParent, false);
} else {
dom.remove(nonEditableParent);
}
} else {
removeCaretContainer(caretContainer);
}
}
}
}
}
};
ed.onMouseDown.addToTop(function(ed, e) {
var node = ed.selection.getNode();
if (getContentEditable(node) === "false" && node == e.target) {
// Expand selection on mouse down we can't block the default event since it's used for drag/drop
moveSelection();
}
});
ed.onMouseUp.addToTop(moveSelection);
ed.onKeyDown.addToTop(handleKey);
ed.onKeyUp.addToTop(moveSelection);
};
tinymce.create('tinymce.plugins.NonEditablePlugin', {
init : function(ed, url) {
var editClass, nonEditClass, nonEditableRegExps;
// Converts configured regexps to noneditable span items
function convertRegExpsToNonEditable(ed, args) {
var i = nonEditableRegExps.length, content = args.content, cls = tinymce.trim(nonEditClass);
// Don't replace the variables when raw is used for example on undo/redo
if (args.format == "raw") {
return;
}
while (i--) {
content = content.replace(nonEditableRegExps[i], function(match) {
var args = arguments, index = args[args.length - 2];
// Is value inside an attribute then don't replace
if (index > 0 && content.charAt(index - 1) == '"') {
return match;
}
return '<span class="' + cls + '" data-mce-content="' + ed.dom.encode(args[0]) + '">' + ed.dom.encode(typeof(args[1]) === "string" ? args[1] : args[0]) + '</span>';
});
}
args.content = content;
};
editClass = " " + tinymce.trim(ed.getParam("noneditable_editable_class", "mceEditable")) + " ";
nonEditClass = " " + tinymce.trim(ed.getParam("noneditable_noneditable_class", "mceNonEditable")) + " ";
// Setup noneditable regexps array
nonEditableRegExps = ed.getParam("noneditable_regexp");
if (nonEditableRegExps && !nonEditableRegExps.length) {
nonEditableRegExps = [nonEditableRegExps];
}
ed.onPreInit.add(function() {
handleContentEditableSelection(ed);
if (nonEditableRegExps) {
ed.selection.onBeforeSetContent.add(convertRegExpsToNonEditable);
ed.onBeforeSetContent.add(convertRegExpsToNonEditable);
}
// Apply contentEditable true/false on elements with the noneditable/editable classes
ed.parser.addAttributeFilter('class', function(nodes) {
var i = nodes.length, className, node;
while (i--) {
node = nodes[i];
className = " " + node.attr("class") + " ";
if (className.indexOf(editClass) !== -1) {
node.attr(internalName, "true");
} else if (className.indexOf(nonEditClass) !== -1) {
node.attr(internalName, "false");
}
}
});
// Remove internal name
ed.serializer.addAttributeFilter(internalName, function(nodes, name) {
var i = nodes.length, node;
while (i--) {
node = nodes[i];
if (nonEditableRegExps && node.attr('data-mce-content')) {
node.name = "#text";
node.type = 3;
node.raw = true;
node.value = node.attr('data-mce-content');
} else {
node.attr(externalName, null);
node.attr(internalName, null);
}
}
});
// Convert external name into internal name
ed.parser.addAttributeFilter(externalName, function(nodes, name) {
var i = nodes.length, node;
while (i--) {
node = nodes[i];
node.attr(internalName, node.attr(externalName));
node.attr(externalName, null);
}
});
});
},
getInfo : function() {
return {
longname : 'Non editable elements',
author : 'Moxiecode Systems AB',
authorurl : 'http://tinymce.moxiecode.com',
infourl : 'http://wiki.moxiecode.com/index.php/TinyMCE:Plugins/noneditable',
version : tinymce.majorVersion + "." + tinymce.minorVersion
};
}
});
// Register plugin
tinymce.PluginManager.add('noneditable', tinymce.plugins.NonEditablePlugin);
})();
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