xuemingqiang/leanote
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

v1.0

Browse Source 
只读模式
group, 分享
评论更多问题
博客标签总是存在一个
This commit is contained in:
lealife
2015-06-15 18:01:48 +08:00
parent 7e458bb433
commit 6987a38820
1453 changed files with 114561 additions and 91536 deletions
Download Patch File Download Diff File Expand all files Collapse all files

715
public/tinymce/classes/dom/Selection.js Normal file → Executable file
View File

@ -21,11 +21,13 @@ define("tinymce/dom/Selection", [
"tinymce/dom/TreeWalker",
"tinymce/dom/TridentSelection",
"tinymce/dom/ControlSelection",
"tinymce/dom/RangeUtils",
"tinymce/dom/BookmarkManager",
"tinymce/Env",
"tinymce/util/Tools"
], function(TreeWalker, TridentSelection, ControlSelection, Env, Tools) {
var each = Tools.each, grep = Tools.grep, trim = Tools.trim;
var isIE = Env.ie, isOpera = Env.opera;
], function(TreeWalker, TridentSelection, ControlSelection, RangeUtils, BookmarkManager, Env, Tools) {
var each = Tools.each, trim = Tools.trim;
var isIE = Env.ie;
/**
* Constructs a new selection instance.
@ -43,7 +45,7 @@ define("tinymce/dom/Selection", [
self.win = win;
self.serializer = serializer;
self.editor = editor;
self.bookmarkManager = new BookmarkManager(self);
self.controlSelection = new ControlSelection(self, editor);
// No W3C Range support
@ -55,17 +57,24 @@ define("tinymce/dom/Selection", [
Selection.prototype = {
/**
* Move the selection cursor range to the specified node and offset.
* If there is no node specified it will move it to the first suitable location within the body.
*
* @method setCursorLocation
* @param {Node} node Node to put the cursor in.
* @param {Number} offset Offset from the start of the node to put the cursor at.
* @param {Node} node Optional node to put the cursor in.
* @param {Number} offset Optional offset from the start of the node to put the cursor at.
*/
setCursorLocation: function(node, offset) {
var self = this, rng = self.dom.createRng();
rng.setStart(node, offset);
rng.setEnd(node, offset);
self.setRng(rng);
self.collapse(false);
if (!node) {
self._moveEndPoint(rng, self.editor.getBody(), true);
self.setRng(rng);
} else {
rng.setStart(node, offset);
rng.setEnd(node, offset);
self.setRng(rng);
self.collapse(false);
}
},
/**
@ -230,9 +239,10 @@ define("tinymce/dom/Selection", [
* node the parent element will be returned.
*
* @method getStart
* @param {Boolean} real Optional state to get the real parent when the selection is collapsed not the closest element.
* @return {Element} Start element of selection range.
*/
getStart: function() {
getStart: function(real) {
var self = this, rng = self.getRng(), startElement, parentElement, checkRng, node;
if (rng.duplicate || rng.item) {
@ -264,7 +274,9 @@ define("tinymce/dom/Selection", [
startElement = rng.startContainer;
if (startElement.nodeType == 1 && startElement.hasChildNodes()) {
startElement = startElement.childNodes[Math.min(startElement.childNodes.length - 1, rng.startOffset)];
if (!real || !rng.collapsed) {
startElement = startElement.childNodes[Math.min(startElement.childNodes.length - 1, rng.startOffset)];
}
}
if (startElement && startElement.nodeType == 3) {
@ -280,9 +292,10 @@ define("tinymce/dom/Selection", [
* node the parent element will be returned.
*
* @method getEnd
* @param {Boolean} real Optional state to get the real parent when the selection is collapsed not the closest element.
* @return {Element} End element of selection range.
*/
getEnd: function() {
getEnd: function(real) {
var self = this, rng = self.getRng(), endElement, endOffset;
if (rng.duplicate || rng.item) {
@ -307,7 +320,9 @@ define("tinymce/dom/Selection", [
endOffset = rng.endOffset;
if (endElement.nodeType == 1 && endElement.hasChildNodes()) {
endElement = endElement.childNodes[endOffset > 0 ? endOffset - 1 : endOffset];
if (!real || !rng.collapsed) {
endElement = endElement.childNodes[endOffset > 0 ? endOffset - 1 : endOffset];
}
}
if (endElement && endElement.nodeType == 3) {
@ -336,169 +351,7 @@ define("tinymce/dom/Selection", [
* tinymce.activeEditor.selection.moveToBookmark(bm);
*/
getBookmark: function(type, normalized) {
var t = this, dom = t.dom, rng, rng2, id, collapsed, name, element, chr = '', styles;
function findIndex(name, element) {
var index = 0;
each(dom.select(name), function(node, i) {
if (node == element) {
index = i;
}
});
return index;
}
function normalizeTableCellSelection(rng) {
function moveEndPoint(start) {
var container, offset, childNodes, prefix = start ? 'start' : 'end';
container = rng[prefix + 'Container'];
offset = rng[prefix + 'Offset'];
if (container.nodeType == 1 && container.nodeName == "TR") {
childNodes = container.childNodes;
container = childNodes[Math.min(start ? offset : offset - 1, childNodes.length - 1)];
if (container) {
offset = start ? 0 : container.childNodes.length;
rng['set' + (start ? 'Start' : 'End')](container, offset);
}
}
}
moveEndPoint(true);
moveEndPoint();
return rng;
}
function getLocation() {
var rng = t.getRng(true), root = dom.getRoot(), bookmark = {};
function getPoint(rng, start) {
var container = rng[start ? 'startContainer' : 'endContainer'],
offset = rng[start ? 'startOffset' : 'endOffset'], point = [], node, childNodes, after = 0;
if (container.nodeType == 3) {
if (normalized) {
for (node = container.previousSibling; node && node.nodeType == 3; node = node.previousSibling) {
offset += node.nodeValue.length;
}
}
point.push(offset);
} else {
childNodes = container.childNodes;
if (offset >= childNodes.length && childNodes.length) {
after = 1;
offset = Math.max(0, childNodes.length - 1);
}
point.push(t.dom.nodeIndex(childNodes[offset], normalized) + after);
}
for (; container && container != root; container = container.parentNode) {
point.push(t.dom.nodeIndex(container, normalized));
}
return point;
}
bookmark.start = getPoint(rng, true);
if (!t.isCollapsed()) {
bookmark.end = getPoint(rng);
}
return bookmark;
}
if (type == 2) {
element = t.getNode();
name = element.nodeName;
if (name == 'IMG') {
return {name: name, index: findIndex(name, element)};
}
if (t.tridentSel) {
return t.tridentSel.getBookmark(type);
}
return getLocation();
}
// Handle simple range
if (type) {
return {rng: t.getRng()};
}
rng = t.getRng();
id = dom.uniqueId();
collapsed = t.isCollapsed();
styles = 'overflow:hidden;line-height:0px';
// Explorer method
if (rng.duplicate || rng.item) {
// Text selection
if (!rng.item) {
rng2 = rng.duplicate();
try {
// Insert start marker
rng.collapse();
rng.pasteHTML('<span data-mce-type="bookmark" id="' + id + '_start" style="' + styles + '">' + chr + '</span>');
// Insert end marker
if (!collapsed) {
rng2.collapse(false);
// Detect the empty space after block elements in IE and move the
// end back one character <p></p>] becomes <p>]</p>
rng.moveToElementText(rng2.parentElement());
if (rng.compareEndPoints('StartToEnd', rng2) === 0) {
rng2.move('character', -1);
}
rng2.pasteHTML('<span data-mce-type="bookmark" id="' + id + '_end" style="' + styles + '">' + chr + '</span>');
}
} catch (ex) {
// IE might throw unspecified error so lets ignore it
return null;
}
} else {
// Control selection
element = rng.item(0);
name = element.nodeName;
return {name: name, index: findIndex(name, element)};
}
} else {
element = t.getNode();
name = element.nodeName;
if (name == 'IMG') {
return {name: name, index: findIndex(name, element)};
}
// W3C method
rng2 = normalizeTableCellSelection(rng.cloneRange());
// Insert end marker
if (!collapsed) {
rng2.collapse(false);
rng2.insertNode(dom.create('span', {'data-mce-type': "bookmark", id: id + '_end', style: styles}, chr));
}
rng = normalizeTableCellSelection(rng);
rng.collapse(true);
rng.insertNode(dom.create('span', {'data-mce-type': "bookmark", id: id + '_start', style: styles}, chr));
}
t.moveToBookmark({id: id, keep: 1});
return {id: id};
return this.bookmarkManager.getBookmark(type, normalized);
},
/**
@ -517,150 +370,7 @@ define("tinymce/dom/Selection", [
* tinymce.activeEditor.selection.moveToBookmark(bm);
*/
moveToBookmark: function(bookmark) {
var t = this, dom = t.dom, rng, root, startContainer, endContainer, startOffset, endOffset;
function setEndPoint(start) {
var point = bookmark[start ? 'start' : 'end'], i, node, offset, children;
if (point) {
offset = point[0];
// Find container node
for (node = root, i = point.length - 1; i >= 1; i--) {
children = node.childNodes;
if (point[i] > children.length - 1) {
return;
}
node = children[point[i]];
}
// Move text offset to best suitable location
if (node.nodeType === 3) {
offset = Math.min(point[0], node.nodeValue.length);
}
// Move element offset to best suitable location
if (node.nodeType === 1) {
offset = Math.min(point[0], node.childNodes.length);
}
// Set offset within container node
if (start) {
rng.setStart(node, offset);
} else {
rng.setEnd(node, offset);
}
}
return true;
}
function restoreEndPoint(suffix) {
var marker = dom.get(bookmark.id + '_' + suffix), node, idx, next, prev, keep = bookmark.keep;
if (marker) {
node = marker.parentNode;
if (suffix == 'start') {
if (!keep) {
idx = dom.nodeIndex(marker);
} else {
node = marker.firstChild;
idx = 1;
}
startContainer = endContainer = node;
startOffset = endOffset = idx;
} else {
if (!keep) {
idx = dom.nodeIndex(marker);
} else {
node = marker.firstChild;
idx = 1;
}
endContainer = node;
endOffset = idx;
}
if (!keep) {
prev = marker.previousSibling;
next = marker.nextSibling;
// Remove all marker text nodes
each(grep(marker.childNodes), function(node) {
if (node.nodeType == 3) {
node.nodeValue = node.nodeValue.replace(/\uFEFF/g, '');
}
});
// Remove marker but keep children if for example contents where inserted into the marker
// Also remove duplicated instances of the marker for example by a
// split operation or by WebKit auto split on paste feature
while ((marker = dom.get(bookmark.id + '_' + suffix))) {
dom.remove(marker, 1);
}
// If siblings are text nodes then merge them unless it's Opera since it some how removes the node
// and we are sniffing since adding a lot of detection code for a browser with 3% of the market
// isn't worth the effort. Sorry, Opera but it's just a fact
if (prev && next && prev.nodeType == next.nodeType && prev.nodeType == 3 && !isOpera) {
idx = prev.nodeValue.length;
prev.appendData(next.nodeValue);
dom.remove(next);
if (suffix == 'start') {
startContainer = endContainer = prev;
startOffset = endOffset = idx;
} else {
endContainer = prev;
endOffset = idx;
}
}
}
}
}
function addBogus(node) {
// Adds a bogus BR element for empty block elements
if (dom.isBlock(node) && !node.innerHTML && !isIE) {
node.innerHTML = '<br data-mce-bogus="1" />';
}
return node;
}
if (bookmark) {
if (bookmark.start) {
rng = dom.createRng();
root = dom.getRoot();
if (t.tridentSel) {
return t.tridentSel.moveToBookmark(bookmark);
}
if (setEndPoint(true) && setEndPoint()) {
t.setRng(rng);
}
} else if (bookmark.id) {
// Restore start/end points
restoreEndPoint('start');
restoreEndPoint('end');
if (startContainer) {
rng = dom.createRng();
rng.setStart(addBogus(startContainer), startOffset);
rng.setEnd(addBogus(endContainer), endOffset);
t.setRng(rng);
}
} else if (bookmark.name) {
t.select(dom.select(bookmark.name)[bookmark.index]);
} else if (bookmark.rng) {
t.setRng(bookmark.rng);
}
}
return this.bookmarkManager.moveToBookmark(bookmark);
},
/**
@ -675,54 +385,11 @@ define("tinymce/dom/Selection", [
* tinymce.activeEditor.selection.select(tinymce.activeEditor.dom.select('p')[0]);
*/
select: function(node, content) {
var self = this, dom = self.dom, rng = dom.createRng(), idx, nonEmptyElementsMap;
var self = this, dom = self.dom, rng = dom.createRng(), idx;
// Clear stored range set by FocusManager
self.lastFocusBookmark = null;
nonEmptyElementsMap = dom.schema.getNonEmptyElements();
function setPoint(node, start) {
var root = node, walker = new TreeWalker(node, root);
do {
// Text node
if (node.nodeType == 3 && trim(node.nodeValue).length !== 0) {
if (start) {
rng.setStart(node, 0);
} else {
rng.setEnd(node, node.nodeValue.length);
}
return;
}
// BR/IMG/INPUT elements
if (nonEmptyElementsMap[node.nodeName]) {
if (start) {
rng.setStartBefore(node);
} else {
if (node.nodeName == 'BR') {
rng.setEndBefore(node);
} else {
rng.setEndAfter(node);
}
}
return;
}
} while ((node = (start ? walker.next() : walker.prev())));
// Failed to find any text node or other suitable location then move to the root of body
if (root.nodeName == 'BODY') {
if (start) {
rng.setStart(root, 0);
} else {
rng.setEnd(root, root.childNodes.length);
}
}
}
if (node) {
if (!content && self.controlSelection.controlSelect(node)) {
return;
@ -734,8 +401,8 @@ define("tinymce/dom/Selection", [
// Find first/last text node or BR element
if (content) {
setPoint(node, 1);
setPoint(node);
self._moveEndPoint(rng, node, true);
self._moveEndPoint(rng, node);
}
self.setRng(rng);
@ -769,9 +436,9 @@ define("tinymce/dom/Selection", [
* Collapse the selection to start or end of range.
*
* @method collapse
* @param {Boolean} to_start Optional boolean state if to collapse to end or not. Defaults to start.
* @param {Boolean} toStart Optional boolean state if to collapse to end or not. Defaults to start.
*/
collapse: function(to_start) {
collapse: function(toStart) {
var self = this, rng = self.getRng(), node;
// Control range on IE
@ -781,7 +448,7 @@ define("tinymce/dom/Selection", [
rng.moveToElementText(node);
}
rng.collapse(!!to_start);
rng.collapse(!!toStart);
self.setRng(rng);
},
@ -809,9 +476,18 @@ define("tinymce/dom/Selection", [
getRng: function(w3c) {
var self = this, selection, rng, elm, doc = self.win.document, ieRng;
// if(aa) {
// log("..");
// }
function tryCompareBoundaryPoints(how, sourceRange, destinationRange) {
try {
return sourceRange.compareBoundaryPoints(how, destinationRange);
} catch (ex) {
// Gecko throws wrong document exception if the range points
// to nodes that where removed from the dom #6690
// Browsers should mutate existing DOMRange instances so that they always point
// to something in the document this is not the case in Gecko works fine in IE/WebKit/Blink
// For performance reasons just return -1
return -1;
}
}
// Use last rng passed from FocusManager if it's available this enables
// calls to editor.selection.getStart() to work when caret focus is lost on IE
@ -819,12 +495,17 @@ define("tinymce/dom/Selection", [
var bookmark = self.lastFocusBookmark;
// Convert bookmark to range IE 11 fix
if (bookmark.startContainer) {
rng = doc.createRange();
rng.setStart(bookmark.startContainer, bookmark.startOffset);
rng.setEnd(bookmark.endContainer, bookmark.endOffset);
} else {
rng = bookmark;
// life ace, 不知道会出什么错
try {
if (bookmark.startContainer) {
rng = doc.createRange();
rng.setStart(bookmark.startContainer, bookmark.startOffset);
rng.setEnd(bookmark.endContainer, bookmark.endOffset);
} else {
rng = bookmark;
}
} catch(e) {
console.trace(e);
}
return rng;
@ -848,7 +529,8 @@ define("tinymce/dom/Selection", [
}
// We have W3C ranges and it's IE then fake control selection since IE9 doesn't handle that correctly yet
if (isIE && rng && rng.setStart) {
// IE 11 doesn't support the selection object so we check for that as well
if (isIE && rng && rng.setStart && doc.selection) {
try {
// IE will sometimes throw an exception here
ieRng = doc.selection.createRange();
@ -879,8 +561,8 @@ define("tinymce/dom/Selection", [
}
if (self.selectedRange && self.explicitRange) {
if (rng.compareBoundaryPoints(rng.START_TO_START, self.selectedRange) === 0 &&
rng.compareBoundaryPoints(rng.END_TO_END, self.selectedRange) === 0) {
if (tryCompareBoundaryPoints(rng.START_TO_START, rng, self.selectedRange) === 0 &&
tryCompareBoundaryPoints(rng.END_TO_END, rng, self.selectedRange) === 0) {
// Safari, Opera and Chrome only ever select text which causes the range to change.
// This lets us use the originally set range if the selection hasn't been changed by the user.
rng = self.explicitRange;
@ -890,9 +572,6 @@ define("tinymce/dom/Selection", [
}
}
// log(">>")
// log((new Date()).getTime())
// log(rng);
return rng;
},
@ -905,6 +584,10 @@ define("tinymce/dom/Selection", [
setRng: function(rng, forward) {
var self = this, sel;
if (!rng) {
return;
}
// Is IE specific range
if (rng.select) {
try {
@ -970,7 +653,6 @@ define("tinymce/dom/Selection", [
},
/**
* 这里, 很重要
* Returns the currently selected element or the common ancestor element for both start and end of the selection.
*
* @method getNode
@ -981,13 +663,8 @@ define("tinymce/dom/Selection", [
*/
getNode: function() {
var self = this, rng = self.getRng(), elm;
// log(rng);
var startContainer = rng.startContainer, endContainer = rng.endContainer;
var startOffset = rng.startOffset, endOffset = rng.endOffset, root = self.dom.getRoot();
// log('start');
// log(startContainer);
// log('end');
// log(endContainer);
function skipEmptyTextNodes(node, forwards) {
var orig = node;
@ -1088,7 +765,7 @@ define("tinymce/dom/Selection", [
return selectedBlocks;
},
isForward: function(){
isForward: function() {
var dom = this.dom, sel = this.getSel(), anchorRange, focusRange;
// No support for selection direction then always return true
@ -1108,182 +785,13 @@ define("tinymce/dom/Selection", [
},
normalize: function() {
var self = this, rng, normalized, collapsed;
var self = this, rng = self.getRng();
function normalizeEndPoint(start) {
var container, offset, walker, dom = self.dom, body = dom.getRoot(), node, nonEmptyElementsMap, nodeName;
function hasBrBeforeAfter(node, left) {
var walker = new TreeWalker(node, dom.getParent(node.parentNode, dom.isBlock) || body);
while ((node = walker[left ? 'prev' : 'next']())) {
if (node.nodeName === "BR") {
return true;
}
}
}
function isPrevNode(node, name) {
return node.previousSibling && node.previousSibling.nodeName == name;
}
// Walks the dom left/right to find a suitable text node to move the endpoint into
// It will only walk within the current parent block or body and will stop if it hits a block or a BR/IMG
function findTextNodeRelative(left, startNode) {
var walker, lastInlineElement;
startNode = startNode || container;
walker = new TreeWalker(startNode, dom.getParent(startNode.parentNode, dom.isBlock) || body);
// Walk left until we hit a text node we can move to or a block/br/img
while ((node = walker[left ? 'prev' : 'next']())) {
// Found text node that has a length
if (node.nodeType === 3 && node.nodeValue.length > 0) {
container = node;
offset = left ? node.nodeValue.length : 0;
normalized = true;
return;
}
// Break if we find a block or a BR/IMG/INPUT etc
if (dom.isBlock(node) || nonEmptyElementsMap[node.nodeName.toLowerCase()]) {
return;
}
lastInlineElement = node;
}
// Only fetch the last inline element when in caret mode for now
if (collapsed && lastInlineElement) {
container = lastInlineElement;
normalized = true;
offset = 0;
}
}
container = rng[(start ? 'start' : 'end') + 'Container'];
offset = rng[(start ? 'start' : 'end') + 'Offset'];
nonEmptyElementsMap = dom.schema.getNonEmptyElements();
// If the container is a document move it to the body element
if (container.nodeType === 9) {
container = dom.getRoot();
offset = 0;
}
// If the container is body try move it into the closest text node or position
if (container === body) {
// If start is before/after a image, table etc
if (start) {
node = container.childNodes[offset > 0 ? offset - 1 : 0];
if (node) {
nodeName = node.nodeName.toLowerCase();
if (nonEmptyElementsMap[node.nodeName] || node.nodeName == "TABLE") {
return;
}
}
}
// Resolve the index
if (container.hasChildNodes()) {
offset = Math.min(!start && offset > 0 ? offset - 1 : offset, container.childNodes.length - 1);
container = container.childNodes[offset];
offset = 0;
// Don't walk into elements that doesn't have any child nodes like a IMG
if (container.hasChildNodes() && !/TABLE/.test(container.nodeName)) {
// Walk the DOM to find a text node to place the caret at or a BR
node = container;
walker = new TreeWalker(container, body);
do {
// Found a text node use that position
if (node.nodeType === 3 && node.nodeValue.length > 0) {
offset = start ? 0 : node.nodeValue.length;
container = node;
normalized = true;
break;
}
// Found a BR/IMG element that we can place the caret before
if (nonEmptyElementsMap[node.nodeName.toLowerCase()]) {
offset = dom.nodeIndex(node);
container = node.parentNode;
// Put caret after image when moving the end point
if (node.nodeName == "IMG" && !start) {
offset++;
}
normalized = true;
break;
}
} while ((node = (start ? walker.next() : walker.prev())));
}
}
}
// Lean the caret to the left if possible
if (collapsed) {
// So this: <b>x</b><i>|x</i>
// Becomes: <b>x|</b><i>x</i>
// Seems that only gecko has issues with this
if (container.nodeType === 3 && offset === 0) {
findTextNodeRelative(true);
}
// Lean left into empty inline elements when the caret is before a BR
// So this: <i><b></b><i>|<br></i>
// Becomes: <i><b>|</b><i><br></i>
// Seems that only gecko has issues with this.
// Special edge case for <p><a>x</a>|<br></p> since we don't want <p><a>x|</a><br></p>
if (container.nodeType === 1) {
node = container.childNodes[offset];
if(node && node.nodeName === 'BR' && !isPrevNode(node, 'A') &&
!hasBrBeforeAfter(node) && !hasBrBeforeAfter(node, true)) {
findTextNodeRelative(true, container.childNodes[offset]);
}
}
}
// Lean the start of the selection right if possible
// So this: x[<b>x]</b>
// Becomes: x<b>[x]</b>
if (start && !collapsed && container.nodeType === 3 && offset === container.nodeValue.length) {
findTextNodeRelative(false);
}
// Set endpoint if it was normalized
if (normalized) {
rng['set' + (start ? 'Start' : 'End')](container, offset);
}
}
// Normalize only on non IE browsers for now
if (isIE) {
return;
}
rng = self.getRng();
collapsed = rng.collapsed;
// Normalize the end points
normalizeEndPoint(true);
if (!collapsed) {
normalizeEndPoint();
}
// Set the selection if it was normalized
if (normalized) {
// If it was collapsed then make sure it still is
if (collapsed) {
rng.collapse(true);
}
//console.log(self.dom.dumpRng(rng));
if (Env.range && new RangeUtils(self.dom).normalize(rng)) {
self.setRng(rng, self.isForward());
}
return rng;
},
/**
@ -1399,6 +907,83 @@ define("tinymce/dom/Selection", [
}
},
placeCaretAt: function(clientX, clientY) {
var doc = this.editor.getDoc(), rng, point;
if (doc.caretPositionFromPoint) {
point = doc.caretPositionFromPoint(clientX, clientY);
rng = doc.createRange();
rng.setStart(point.offsetNode, point.offset);
rng.collapse(true);
} else if (doc.caretRangeFromPoint) {
rng = doc.caretRangeFromPoint(clientX, clientY);
} else if (doc.body.createTextRange) {
rng = doc.body.createTextRange();
try {
rng.moveToPoint(clientX, clientY);
rng.collapse(true);
} catch (ex) {
rng.collapse(clientY < doc.body.clientHeight);
}
}
this.setRng(rng);
},
_moveEndPoint: function(rng, node, start) {
var root = node, walker = new TreeWalker(node, root);
var nonEmptyElementsMap = this.dom.schema.getNonEmptyElements();
do {
// Text node
if (node.nodeType == 3 && trim(node.nodeValue).length !== 0) {
if (start) {
rng.setStart(node, 0);
} else {
rng.setEnd(node, node.nodeValue.length);
}
return;
}
// BR/IMG/INPUT elements but not table cells
if (nonEmptyElementsMap[node.nodeName] && !/^(TD|TH)$/.test(node.nodeName)) {
if (start) {
rng.setStartBefore(node);
} else {
if (node.nodeName == 'BR') {
rng.setEndBefore(node);
} else {
rng.setEndAfter(node);
}
}
return;
}
// Found empty text block old IE can place the selection inside those
if (Env.ie && Env.ie < 11 && this.dom.isBlock(node) && this.dom.isEmpty(node)) {
if (start) {
rng.setStart(node, 0);
} else {
rng.setEnd(node, 0);
}
return;
}
} while ((node = (start ? walker.next() : walker.prev())));
// Failed to find any text node or other suitable location then move to the root of body
if (root.nodeName == 'BODY') {
if (start) {
rng.setStart(root, 0);
} else {
rng.setEnd(root, root.childNodes.length);
}
}
},
destroy: function() {
this.win = null;
this.controlSelection.destroy();