blob: 863250be2f4b7934338dc2f097824cfb6ae21f72 (
plain)
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
|
/**
@license
Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
*/
'use strict';
import { MIXIN_MATCH, VAR_ASSIGN } from './common-regex.js';
/**
* @param {Element} element
* @param {Object=} properties
*/
export function updateNativeProperties(element, properties) {
// remove previous properties
for (let p in properties) {
// NOTE: for bc with shim, don't apply null values.
if (p === null) {
element.style.removeProperty(p);
} else {
element.style.setProperty(p, properties[p]);
}
}
}
/**
* @param {Element} element
* @param {string} property
* @return {string}
*/
export function getComputedStyleValue(element, property) {
/**
* @const {string}
*/
const value = window.getComputedStyle(element).getPropertyValue(property);
if (!value) {
return '';
} else {
return value.trim();
}
}
/**
* return true if `cssText` contains a mixin definition or consumption
* @param {string} cssText
* @return {boolean}
*/
export function detectMixin(cssText) {
const has = MIXIN_MATCH.test(cssText) || VAR_ASSIGN.test(cssText);
// reset state of the regexes
MIXIN_MATCH.lastIndex = 0;
VAR_ASSIGN.lastIndex = 0;
return has;
}
|
