forked from vadimdemedes/ink
/
dom.ts
228 lines (185 loc) Β· 5.2 KB
/
dom.ts
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
// eslint-disable-next-line n/file-extension-in-import
import Yoga, {type Node as YogaNode} from 'yoga-wasm-web/auto';
import measureText from './measure-text.js';
import applyStyles, {type Styles} from './styles.js';
import wrapText from './wrap-text.js';
import squashTextNodes from './squash-text-nodes.js';
import {type OutputTransformer} from './render-node-to-output.js';
type InkNode = {
parentNode: DOMElement | undefined;
yogaNode?: YogaNode;
internal_static?: boolean;
style: Styles;
};
export type TextName = '#text';
export type ElementNames =
| 'ink-root'
| 'ink-box'
| 'ink-text'
| 'ink-virtual-text';
export type NodeNames = ElementNames | TextName;
// eslint-disable-next-line @typescript-eslint/naming-convention
export type DOMElement = {
nodeName: ElementNames;
attributes: Record<string, DOMNodeAttribute>;
childNodes: DOMNode[];
internal_transform?: OutputTransformer;
// Internal properties
isStaticDirty?: boolean;
staticNode?: DOMElement;
onRender?: () => void;
onImmediateRender?: () => void;
} & InkNode;
export type TextNode = {
nodeName: TextName;
nodeValue: string;
} & InkNode;
// eslint-disable-next-line @typescript-eslint/naming-convention
export type DOMNode<T = {nodeName: NodeNames}> = T extends {
nodeName: infer U;
}
? U extends '#text'
? TextNode
: DOMElement
: never;
// eslint-disable-next-line @typescript-eslint/naming-convention
export type DOMNodeAttribute = boolean | string | number;
export const createNode = (nodeName: ElementNames): DOMElement => {
const node: DOMElement = {
nodeName,
style: {},
attributes: {},
childNodes: [],
parentNode: undefined,
yogaNode: nodeName === 'ink-virtual-text' ? undefined : Yoga.Node.create()
};
if (nodeName === 'ink-text') {
node.yogaNode?.setMeasureFunc(measureTextNode.bind(null, node));
}
return node;
};
export const appendChildNode = (
node: DOMElement,
childNode: DOMElement
): void => {
if (childNode.parentNode) {
removeChildNode(childNode.parentNode, childNode);
}
childNode.parentNode = node;
node.childNodes.push(childNode);
if (childNode.yogaNode) {
node.yogaNode?.insertChild(
childNode.yogaNode,
node.yogaNode.getChildCount()
);
}
if (node.nodeName === 'ink-text' || node.nodeName === 'ink-virtual-text') {
markNodeAsDirty(node);
}
};
export const insertBeforeNode = (
node: DOMElement,
newChildNode: DOMNode,
beforeChildNode: DOMNode
): void => {
if (newChildNode.parentNode) {
removeChildNode(newChildNode.parentNode, newChildNode);
}
newChildNode.parentNode = node;
const index = node.childNodes.indexOf(beforeChildNode);
if (index >= 0) {
node.childNodes.splice(index, 0, newChildNode);
if (newChildNode.yogaNode) {
node.yogaNode?.insertChild(newChildNode.yogaNode, index);
}
return;
}
node.childNodes.push(newChildNode);
if (newChildNode.yogaNode) {
node.yogaNode?.insertChild(
newChildNode.yogaNode,
node.yogaNode.getChildCount()
);
}
if (node.nodeName === 'ink-text' || node.nodeName === 'ink-virtual-text') {
markNodeAsDirty(node);
}
};
export const removeChildNode = (
node: DOMElement,
removeNode: DOMNode
): void => {
if (removeNode.yogaNode) {
removeNode.parentNode?.yogaNode?.removeChild(removeNode.yogaNode);
}
removeNode.parentNode = undefined;
const index = node.childNodes.indexOf(removeNode);
if (index >= 0) {
node.childNodes.splice(index, 1);
}
if (node.nodeName === 'ink-text' || node.nodeName === 'ink-virtual-text') {
markNodeAsDirty(node);
}
};
export const setAttribute = (
node: DOMElement,
key: string,
value: DOMNodeAttribute
): void => {
node.attributes[key] = value;
};
export const setStyle = (node: DOMNode, style: Styles): void => {
node.style = style;
if (node.yogaNode) {
applyStyles(node.yogaNode, style);
}
};
export const createTextNode = (text: string): TextNode => {
const node: TextNode = {
nodeName: '#text',
nodeValue: text,
yogaNode: undefined,
parentNode: undefined,
style: {}
};
setTextNodeValue(node, text);
return node;
};
const measureTextNode = function (
node: DOMNode,
width: number
): {width: number; height: number} {
const text =
node.nodeName === '#text' ? node.nodeValue : squashTextNodes(node);
const dimensions = measureText(text);
// Text fits into container, no need to wrap
if (dimensions.width <= width) {
return dimensions;
}
// This is happening when <Box> is shrinking child nodes and Yoga asks
// if we can fit this text node in a <1px space, so we just tell Yoga "no"
if (dimensions.width >= 1 && width > 0 && width < 1) {
return dimensions;
}
const textWrap = node.style?.textWrap ?? 'wrap';
const wrappedText = wrapText(text, width, textWrap);
return measureText(wrappedText);
};
const findClosestYogaNode = (node?: DOMNode): YogaNode | undefined => {
if (!node?.parentNode) {
return undefined;
}
return node.yogaNode ?? findClosestYogaNode(node.parentNode);
};
const markNodeAsDirty = (node?: DOMNode): void => {
// Mark closest Yoga node as dirty to measure text dimensions again
const yogaNode = findClosestYogaNode(node);
yogaNode?.markDirty();
};
export const setTextNodeValue = (node: TextNode, text: string): void => {
if (typeof text !== 'string') {
text = String(text);
}
node.nodeValue = text;
markNodeAsDirty(node);
};