提交 | 用户 | age
|
74e62c
|
1 |
import type { VNodeChild } from 'vue'; |
b71e4e
|
2 |
import type { App } from 'vue'; |
234c1d
|
3 |
|
74e62c
|
4 |
export function withInstall(...components: any[]) { |
V |
5 |
components.forEach((comp) => { |
|
6 |
comp.install = (app: App) => { |
|
7 |
app.component(comp.displayName || comp.name, comp); |
|
8 |
}; |
|
9 |
}); |
234c1d
|
10 |
} |
2f6253
|
11 |
|
陈 |
12 |
export function convertToUnit( |
|
13 |
str: string | number | null | undefined, |
|
14 |
unit = 'px' |
|
15 |
): string | undefined { |
|
16 |
if (str == null || str === '') { |
|
17 |
return undefined; |
|
18 |
} else if (isNaN(+str!)) { |
|
19 |
return String(str); |
|
20 |
} else { |
|
21 |
return `${Number(str)}${unit}`; |
|
22 |
} |
|
23 |
} |
|
24 |
|
|
25 |
/** |
|
26 |
* Camelize a hyphen-delimited string. |
|
27 |
*/ |
|
28 |
const camelizeRE = /-(\w)/g; |
|
29 |
export const camelize = (str: string): string => { |
|
30 |
return str.replace(camelizeRE, (_, c) => (c ? c.toUpperCase() : '')); |
|
31 |
}; |
|
32 |
|
|
33 |
export function wrapInArray<T>(v: T | T[] | null | undefined): T[] { |
|
34 |
return v != null ? (Array.isArray(v) ? v : [v]) : []; |
|
35 |
} |
|
36 |
|
|
37 |
const pattern = { |
|
38 |
styleList: /;(?![^(]*\))/g, |
|
39 |
styleProp: /:(.*)/, |
|
40 |
} as const; |
|
41 |
|
|
42 |
function parseStyle(style: string) { |
|
43 |
const styleMap: Dictionary<any> = {}; |
|
44 |
|
|
45 |
for (const s of style.split(pattern.styleList)) { |
|
46 |
let [key, val] = s.split(pattern.styleProp); |
|
47 |
key = key.trim(); |
|
48 |
if (!key) { |
|
49 |
continue; |
|
50 |
} |
|
51 |
// May be undefined if the `key: value` pair is incomplete. |
|
52 |
if (typeof val === 'string') { |
|
53 |
val = val.trim(); |
|
54 |
} |
|
55 |
styleMap[camelize(key)] = val; |
|
56 |
} |
|
57 |
|
|
58 |
return styleMap; |
|
59 |
} |
|
60 |
|
|
61 |
/** |
|
62 |
* Intelligently merges data for createElement. |
|
63 |
* Merges arguments left to right, preferring the right argument. |
|
64 |
* Returns new VNodeData object. |
|
65 |
*/ |
|
66 |
export function mergeData(...vNodeData: VNodeChild[]): VNodeChild; |
|
67 |
export function mergeData(...args: any[]): VNodeChild { |
|
68 |
const mergeTarget: any = {}; |
|
69 |
let i: number = args.length; |
|
70 |
let prop: string; |
|
71 |
|
|
72 |
// Allow for variadic argument length. |
|
73 |
while (i--) { |
|
74 |
// Iterate through the data properties and execute merge strategies |
|
75 |
// Object.keys eliminates need for hasOwnProperty call |
|
76 |
for (prop of Object.keys(args[i])) { |
|
77 |
switch (prop) { |
|
78 |
// Array merge strategy (array concatenation) |
|
79 |
case 'class': |
|
80 |
case 'directives': |
|
81 |
if (args[i][prop]) { |
|
82 |
mergeTarget[prop] = mergeClasses(mergeTarget[prop], args[i][prop]); |
|
83 |
} |
|
84 |
break; |
|
85 |
case 'style': |
|
86 |
if (args[i][prop]) { |
|
87 |
mergeTarget[prop] = mergeStyles(mergeTarget[prop], args[i][prop]); |
|
88 |
} |
|
89 |
break; |
|
90 |
// Space delimited string concatenation strategy |
|
91 |
case 'staticClass': |
|
92 |
if (!args[i][prop]) { |
|
93 |
break; |
|
94 |
} |
|
95 |
if (mergeTarget[prop] === undefined) { |
|
96 |
mergeTarget[prop] = ''; |
|
97 |
} |
|
98 |
if (mergeTarget[prop]) { |
|
99 |
// Not an empty string, so concatenate |
|
100 |
mergeTarget[prop] += ' '; |
|
101 |
} |
|
102 |
mergeTarget[prop] += args[i][prop].trim(); |
|
103 |
break; |
|
104 |
// Object, the properties of which to merge via array merge strategy (array concatenation). |
|
105 |
// Callback merge strategy merges callbacks to the beginning of the array, |
|
106 |
// so that the last defined callback will be invoked first. |
|
107 |
// This is done since to mimic how Object.assign merging |
|
108 |
// uses the last given value to assign. |
|
109 |
case 'on': |
|
110 |
case 'nativeOn': |
|
111 |
if (args[i][prop]) { |
|
112 |
mergeTarget[prop] = mergeListeners(mergeTarget[prop], args[i][prop]); |
|
113 |
} |
|
114 |
break; |
|
115 |
// Object merge strategy |
|
116 |
case 'attrs': |
|
117 |
case 'props': |
|
118 |
case 'domProps': |
|
119 |
case 'scopedSlots': |
|
120 |
case 'staticStyle': |
|
121 |
case 'hook': |
|
122 |
case 'transition': |
|
123 |
if (!args[i][prop]) { |
|
124 |
break; |
|
125 |
} |
|
126 |
if (!mergeTarget[prop]) { |
|
127 |
mergeTarget[prop] = {}; |
|
128 |
} |
|
129 |
mergeTarget[prop] = { ...args[i][prop], ...mergeTarget[prop] }; |
|
130 |
break; |
|
131 |
// Reassignment strategy (no merge) |
|
132 |
default: |
|
133 |
// slot, key, ref, tag, show, keepAlive |
|
134 |
if (!mergeTarget[prop]) { |
|
135 |
mergeTarget[prop] = args[i][prop]; |
|
136 |
} |
|
137 |
} |
|
138 |
} |
|
139 |
} |
|
140 |
|
|
141 |
return mergeTarget; |
|
142 |
} |
|
143 |
|
|
144 |
export function mergeStyles( |
|
145 |
target: undefined | string | object[] | object, |
|
146 |
source: undefined | string | object[] | object |
|
147 |
) { |
|
148 |
if (!target) return source; |
|
149 |
if (!source) return target; |
|
150 |
|
|
151 |
target = wrapInArray(typeof target === 'string' ? parseStyle(target) : target); |
|
152 |
|
|
153 |
return (target as object[]).concat(typeof source === 'string' ? parseStyle(source) : source); |
|
154 |
} |
|
155 |
|
|
156 |
export function mergeClasses(target: any, source: any) { |
|
157 |
if (!source) return target; |
|
158 |
if (!target) return source; |
|
159 |
|
|
160 |
return target ? wrapInArray(target).concat(source) : source; |
|
161 |
} |
|
162 |
|
|
163 |
export function mergeListeners( |
|
164 |
target: { [key: string]: Function | Function[] } | undefined, |
|
165 |
source: { [key: string]: Function | Function[] } | undefined |
|
166 |
) { |
|
167 |
if (!target) return source; |
|
168 |
if (!source) return target; |
|
169 |
|
|
170 |
let event: string; |
|
171 |
|
|
172 |
for (event of Object.keys(source)) { |
|
173 |
// Concat function to array of functions if callback present. |
|
174 |
if (target[event]) { |
|
175 |
// Insert current iteration data in beginning of merged array. |
|
176 |
target[event] = wrapInArray(target[event]); |
|
177 |
(target[event] as Function[]).push(...wrapInArray(source[event])); |
|
178 |
} else { |
|
179 |
// Straight assign. |
|
180 |
target[event] = source[event]; |
|
181 |
} |
|
182 |
} |
|
183 |
|
|
184 |
return target; |
|
185 |
} |