jiti-meet/react/features/base/styles/functions.js

97 lines
2.9 KiB
JavaScript

/* @flow */
import { Platform } from '../react';
import { ColorPalette } from './components';
declare type StyleSheet = Object;
/**
* The list of the well-known style properties which may not be numbers on Web
* but must be numbers on React Native.
*
* @private
*/
const _WELL_KNOWN_NUMBER_PROPERTIES = [ 'height', 'width' ];
/* eslint-disable flowtype/space-before-type-colon */
/**
* Create a style sheet using the provided style definitions.
*
* @param {StyleSheet} styles - A dictionary of named style definitions.
* @param {StyleSheet} [overrides={}] - Optional set of additional (often
* platform-dependent/specific) style definitions that will override the base
* (often platform-independent) styles.
* @returns {StyleSheet}
*/
export function createStyleSheet(styles: StyleSheet, overrides: StyleSheet = {})
: StyleSheet {
/* eslint-enable flowtype/space-before-type-colon */
const combinedStyles = {};
for (const k of Object.keys(styles)) {
combinedStyles[k]
= _shimStyles({
...styles[k],
...overrides[k]
});
}
return combinedStyles;
}
/**
* Works around a bug in react-native or react-native-webrtc on Android which
* causes Views overlaying RTCView to be clipped. Even though we (may) display
* multiple RTCViews, it is enough to apply the fix only to a View with a
* bounding rectangle containing all RTCviews and their overlaying Views.
*
* @param {StyleSheet} styles - An object which represents a stylesheet.
* @public
* @returns {StyleSheet}
*/
export function fixAndroidViewClipping<T: StyleSheet>(styles: T): T {
if (Platform.OS === 'android') {
styles.borderColor = ColorPalette.appBackground;
styles.borderWidth = 0.2;
}
return styles;
}
/**
* Shims style properties to work correctly on native. Allows us to minimize the
* number of style declarations that need to be set or overridden for specific
* platforms.
*
* @param {StyleSheet} styles - An object which represents a stylesheet.
* @private
* @returns {StyleSheet}
*/
function _shimStyles<T: StyleSheet>(styles: T): T {
// Certain style properties may not be numbers on Web but must be numbers on
// React Native. For example, height and width may be expressed in percent
// on Web but React Native will not understand them and we will get errors
// (at least during development). Convert such well-known properties to
// numbers if possible; otherwise, remove them to avoid runtime errors.
for (const k of _WELL_KNOWN_NUMBER_PROPERTIES) {
const v = styles[k];
const typeofV = typeof v;
if (typeofV !== 'undefined' && typeofV !== 'number') {
const numberV = Number(v);
if (Number.isNaN(numberV)) {
delete styles[k];
} else {
styles[k] = numberV;
}
}
}
return styles;
}