| 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232 | 1×
1×
1×
1×
2832×
2832×
2832×
2832×
1×
40×
40×
40×
40×
40×
40×
4×
1×
1×
1×
3×
3×
3×
4×
4×
36×
36×
36×
36×
78×
12×
66×
36×
36×
50×
40×
40×
10×
50×
36×
36×
36×
1×
76×
76×
57×
16×
16×
7×
9×
9×
9×
9×
9×
9×
9×
41×
1×
60×
60×
60×
60×
141×
41×
100×
60×
60×
100×
100×
60×
1×
684×
1×
6×
6×
6×
6×
14×
14×
6×
1×
6×
6×
6×
1×
117×
117×
168×
117×
117×
117×
1×
142×
98×
44×
44×
76×
32×
44×
1×
30×
30×
48×
37×
37×
20×
28×
10×
1×
6×
6×
6×
18×
18×
18×
6×
18×
6×
6×
6×
1×
6×
18×
18×
13×
6×
1×
6×
6×
6×
6×
6×
3×
3×
3×
3×
4×
3×
6×
3×
6×
6×
6×
6×
1×
1×
| define(["require", "exports", "@syncfusion/ej2-base"], function (require, exports, ej2_base_1) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var DOMMethods = (function () {
function DOMMethods(editElement) {
this.directRangeElems = ['IMG', 'TABLE', 'AUDIO', 'VIDEO', 'HR'];
this.BLOCK_TAGS = ['address', 'article', 'aside', 'audio', 'blockquote',
'canvas', 'details', 'dd', 'div', 'dl', 'dt', 'fieldset', 'figcaption', 'figure', 'footer',
'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header', 'hgroup', 'hr', 'li', 'main', 'nav',
'noscript', 'output', 'p', 'pre', 'section', 'td', 'tfoot', 'th',
'video', 'body'];
this.editableElement = editElement;
this.currentDocument = editElement.ownerDocument;
}
DOMMethods.prototype.getBlockNode = function () {
var _this = this;
var blockCollection = [];
var selection = this.currentDocument.getSelection();
var range = selection.getRangeAt(0);
var directRange = range.startContainer === this.editableElement && range.startContainer === range.endContainer &&
range.startContainer.nodeName !== '#text';
if (directRange) {
if (range.startOffset === range.endOffset) {
var isDirectRangeElems = this.editableElement.childNodes[range.startOffset] &&
this.directRangeElems.indexOf(this.editableElement.childNodes[range.startOffset].nodeName) > -1;
Eif (isDirectRangeElems) {
blockCollection.push(this.editableElement.childNodes[range.startOffset]);
}
}
else {
var isElementRange = range.endOffset === range.startOffset + 1;
Eif (isElementRange) {
blockCollection.push(this.editableElement.childNodes[range.startOffset]);
}
}
Eif (blockCollection.length > 0) {
return blockCollection;
}
}
else {
var start = range.startContainer.nodeType === Node.TEXT_NODE ?
range.startContainer.parentElement : range.startContainer;
var end = range.endContainer.nodeType === Node.TEXT_NODE ?
range.endContainer.parentElement : range.endContainer;
var endBlockNode = this.isBlockNode(end) ? end : this.getParentBlockNode(end);
var blockNodeWalker = this.currentDocument.createTreeWalker(this.editableElement, NodeFilter.SHOW_ELEMENT, {
acceptNode: function (node) {
if (!range.intersectsNode(node)) {
return NodeFilter.FILTER_REJECT;
}
return _this.isBlockNode(node) ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_SKIP;
}
});
blockNodeWalker.currentNode = start;
while (blockNodeWalker.currentNode) {
if (this.isBlockNode(blockNodeWalker.currentNode)) {
this.addToBlockCollection(blockCollection, blockNodeWalker, range);
blockNodeWalker.nextNode();
}
else {
blockNodeWalker.previousNode();
}
if (blockNodeWalker.currentNode === end || blockNodeWalker.currentNode === endBlockNode) {
this.addToBlockCollection(blockCollection, blockNodeWalker, range);
break;
}
}
}
return blockCollection;
};
DOMMethods.prototype.addToBlockCollection = function (blockCollection, blockNodeWalker, range) {
var currentNode = blockNodeWalker.currentNode;
if (blockNodeWalker.currentNode && blockCollection.indexOf(blockNodeWalker.currentNode) === -1) {
if (currentNode.nodeName === 'LI') {
var isDirectChild = !currentNode.parentNode.closest('li');
if (isDirectChild) {
blockCollection.push(blockNodeWalker.currentNode);
}
else {
var commonAncestor = range.commonAncestorContainer;
var parentLI = currentNode.parentElement.closest('li');
var isNestedLI = currentNode.nodeName === 'LI' && !!parentLI;
var ancestorElement = commonAncestor.nodeType === 3 ? commonAncestor.parentElement : commonAncestor;
var isListAncestor = !!ancestorElement.closest('ul,ol');
Eif (isNestedLI && isListAncestor) {
blockCollection.push(blockNodeWalker.currentNode);
}
else {
return;
}
}
}
else {
blockCollection.push(blockNodeWalker.currentNode);
}
}
};
DOMMethods.prototype.getTextNodes = function (blockElem) {
var nodeCollection = [];
var selection = this.currentDocument.getSelection();
var range = selection.getRangeAt(0);
var textNodeWalker = this.currentDocument.createTreeWalker(blockElem, NodeFilter.SHOW_TEXT, {
acceptNode: function (node) {
if (!range.intersectsNode(node)) {
return NodeFilter.FILTER_REJECT;
}
return NodeFilter.FILTER_ACCEPT;
}
});
var textNode = textNodeWalker.nextNode();
while (textNode) {
nodeCollection.push(textNode);
textNode = textNodeWalker.nextNode();
}
return nodeCollection;
};
DOMMethods.prototype.isBlockNode = function (element) {
return (!!element && (element.nodeType === Node.ELEMENT_NODE && this.BLOCK_TAGS.indexOf(element.tagName.toLowerCase()) >= 0));
};
DOMMethods.prototype.getLastTextNode = function (node) {
var treeWalker = this.currentDocument.createTreeWalker(node, NodeFilter.SHOW_TEXT, null);
var lastTextNode = null;
var currentNode = treeWalker.nextNode();
while (currentNode) {
lastTextNode = currentNode;
currentNode = treeWalker.nextNode();
}
return lastTextNode;
};
DOMMethods.prototype.getFirstTextNode = function (node) {
var treeWalker = this.currentDocument.createTreeWalker(node, NodeFilter.SHOW_TEXT, null);
var firstTextNode = treeWalker.nextNode();
return firstTextNode;
};
DOMMethods.prototype.getParentBlockNode = function (node) {
var _this = this;
var treeWalker = this.currentDocument.createTreeWalker(this.editableElement, NodeFilter.SHOW_ELEMENT, {
acceptNode: function (currentNode) {
return _this.isBlockNode(currentNode) ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_SKIP;
}
});
treeWalker.currentNode = node;
var blockParent = treeWalker.parentNode();
return blockParent;
};
DOMMethods.prototype.getTopMostNode = function (text) {
if (this.isBlockNode(text.parentNode)) {
return text;
}
var parent = text.parentNode;
while (parent) {
if (!this.isBlockNode(parent.parentNode) && text.textContent === parent.textContent) {
parent = parent.parentNode;
}
else {
return parent;
}
}
return parent;
};
DOMMethods.prototype.findParentLiElementUntilEditable = function (node) {
var currentNode = node;
while (currentNode && currentNode !== this.editableElement) {
if (currentNode.nodeType === Node.ELEMENT_NODE) {
var element = currentNode;
if (element.tagName === 'LI') {
return element;
}
}
currentNode = currentNode.parentNode;
}
return null;
};
DOMMethods.prototype.getSelectedLiElements = function () {
var selection = this.currentDocument.getSelection();
var range = selection.getRangeAt(0);
var nodeInRange = function (rng, node) {
var nodeRange = rng.cloneRange();
nodeRange.selectNodeContents(node);
return (rng.compareBoundaryPoints(Range.END_TO_START, nodeRange) < 0 &&
rng.compareBoundaryPoints(Range.START_TO_END, nodeRange) > 0);
};
var walker = this.currentDocument.createTreeWalker(range.commonAncestorContainer, NodeFilter.SHOW_ALL, {
acceptNode: function (node) {
return nodeInRange(range, node)
? NodeFilter.FILTER_ACCEPT
: NodeFilter.FILTER_REJECT;
}
});
var liElements = new Set();
var startLi = this.findParentLiElementUntilEditable(walker.currentNode);
if (startLi) {
liElements.add(startLi);
}
while (walker.nextNode()) {
var li = this.findParentLiElementUntilEditable(walker.currentNode);
if (li) {
liElements.add(li);
}
}
return Array.from(liElements);
};
DOMMethods.prototype.getLiElementsInRange = function () {
var liElements = [];
var blockNodes = this.getSelectedLiElements();
var _loop_1 = function (i) {
var li = this_1.findParentLiElementUntilEditable(blockNodes[i]);
if (li && li.querySelectorAll('li').length > 0) {
var selection = this_1.currentDocument.getSelection();
var range_1 = selection.getRangeAt(0);
var liList = li.querySelectorAll('li');
liList.forEach(function (li) {
if (range_1.intersectsNode(li) && liElements.indexOf(li) === -1) {
liElements.push(li);
}
});
}
if (!ej2_base_1.isNullOrUndefined(li) && liElements.indexOf(li) === -1) {
liElements.push(li);
}
};
var this_1 = this;
for (var i = 0; i < blockNodes.length; i++) {
_loop_1(i);
}
return liElements;
};
return DOMMethods;
}());
exports.DOMMethods = DOMMethods;
});
|