react-native/Libraries/StyleSheet/LayoutPropTypes.js

399 lines
14 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule LayoutPropTypes
* @flow
*/
'use strict';
var ReactPropTypes = require('React').PropTypes;
/**
* React Native's layout system is based on Flexbox and is powered both
* on iOS and Android by an open source project called css-layout:
* https://github.com/facebook/css-layout
*
* The implementation in css-layout is slightly different from what the
* Flexbox spec defines - for example, we chose more sensible default
* values. Since our layout docs are generated from the comments in this
* file, please keep a brief comment describing each prop type.
*
* These properties are a subset of our styles that are consumed by the layout
* algorithm and affect the positioning and sizing of views.
*/
var LayoutPropTypes = {
/** `width` sets the width of this component.
*
* It works similarly to `width` in CSS, but in React Native you
* must use logical pixel units, rather than percents, ems, or any of that.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/width for more details.
*/
width: ReactPropTypes.number,
/** `height` sets the height of this component.
*
* It works similarly to `height` in CSS, but in React Native you
* must use logical pixel units, rather than percents, ems, or any of that.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/height for more details.
*/
height: ReactPropTypes.number,
/** `top` is the number of logical pixels to offset the top edge of
* this component.
*
* It works similarly to `top` in CSS, but in React Native you must
* use logical pixel units, rather than percents, ems, or any of that.
*
* See https://developer.mozilla.org/en-US/docs/Web/CSS/top
* for more details of how `top` affects layout.
*/
top: ReactPropTypes.number,
/** `left` is the number of logical pixels to offset the left edge of
* this component.
*
* It works similarly to `left` in CSS, but in React Native you must
* use logical pixel units, rather than percents, ems, or any of that.
*
* See https://developer.mozilla.org/en-US/docs/Web/CSS/left
* for more details of how `left` affects layout.
*/
left: ReactPropTypes.number,
/** `right` is the number of logical pixels to offset the right edge of
* this component.
*
* It works similarly to `right` in CSS, but in React Native you must
* use logical pixel units, rather than percents, ems, or any of that.
*
* See https://developer.mozilla.org/en-US/docs/Web/CSS/right
* for more details of how `right` affects layout.
*/
right: ReactPropTypes.number,
/** `bottom` is the number of logical pixels to offset the bottom edge of
* this component.
*
* It works similarly to `bottom` in CSS, but in React Native you must
* use logical pixel units, rather than percents, ems, or any of that.
*
* See https://developer.mozilla.org/en-US/docs/Web/CSS/bottom
* for more details of how `bottom` affects layout.
*/
bottom: ReactPropTypes.number,
/** `minWidth` is the minimum width for this component, in logical pixels.
*
* It works similarly to `min-width` in CSS, but in React Native you
* must use logical pixel units, rather than percents, ems, or any of that.
*
* See https://developer.mozilla.org/en-US/docs/Web/CSS/min-width
* for more details.
*/
minWidth: ReactPropTypes.number,
/** `maxWidth` is the maximum width for this component, in logical pixels.
*
* It works similarly to `max-width` in CSS, but in React Native you
* must use logical pixel units, rather than percents, ems, or any of that.
*
* See https://developer.mozilla.org/en-US/docs/Web/CSS/max-width
* for more details.
*/
maxWidth: ReactPropTypes.number,
/** `minHeight` is the minimum height for this component, in logical pixels.
*
* It works similarly to `min-height` in CSS, but in React Native you
* must use logical pixel units, rather than percents, ems, or any of that.
*
* See https://developer.mozilla.org/en-US/docs/Web/CSS/min-height
* for more details.
*/
minHeight: ReactPropTypes.number,
/** `maxHeight` is the maximum height for this component, in logical pixels.
*
* It works similarly to `max-height` in CSS, but in React Native you
* must use logical pixel units, rather than percents, ems, or any of that.
*
* See https://developer.mozilla.org/en-US/docs/Web/CSS/max-height
* for more details.
*/
maxHeight: ReactPropTypes.number,
/** Setting `margin` has the same effect as setting each of
* `marginTop`, `marginLeft`, `marginBottom`, and `marginRight`.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/margin
* for more details.
*/
margin: ReactPropTypes.number,
/** Setting `marginVertical` has the same effect as setting both
* `marginTop` and `marginBottom`.
*/
marginVertical: ReactPropTypes.number,
/** Setting `marginHorizontal` has the same effect as setting
* both `marginLeft` and `marginRight`.
*/
marginHorizontal: ReactPropTypes.number,
/** `marginTop` works like `margin-top` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/margin-top
* for more details.
*/
marginTop: ReactPropTypes.number,
/** `marginBottom` works like `margin-bottom` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/margin-bottom
* for more details.
*/
marginBottom: ReactPropTypes.number,
/** `marginLeft` works like `margin-left` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/margin-left
* for more details.
*/
marginLeft: ReactPropTypes.number,
/** `marginRight` works like `margin-right` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/margin-right
* for more details.
*/
marginRight: ReactPropTypes.number,
/** Setting `padding` has the same effect as setting each of
* `paddingTop`, `paddingBottom`, `paddingLeft`, and `paddingRight`.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/padding
* for more details.
*/
padding: ReactPropTypes.number,
/** Setting `paddingVertical` is like setting both of
* `paddingTop` and `paddingBottom`.
*/
paddingVertical: ReactPropTypes.number,
/** Setting `paddingHorizontal` is like setting both of
* `paddingLeft` and `paddingRight`.
*/
paddingHorizontal: ReactPropTypes.number,
/** `paddingTop` works like `padding-top` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/padding-top
* for more details.
*/
paddingTop: ReactPropTypes.number,
/** `paddingBottom` works like `padding-bottom` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/padding-bottom
* for more details.
*/
paddingBottom: ReactPropTypes.number,
/** `paddingLeft` works like `padding-left` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/padding-left
* for more details.
*/
paddingLeft: ReactPropTypes.number,
/** `paddingRight` works like `padding-right` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/padding-right
* for more details.
*/
paddingRight: ReactPropTypes.number,
/** `borderWidth` works like `border-width` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/border-width
* for more details.
*/
borderWidth: ReactPropTypes.number,
/** `borderTopWidth` works like `border-top-width` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/border-top-width
* for more details.
*/
borderTopWidth: ReactPropTypes.number,
/** `borderRightWidth` works like `border-right-width` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/border-right-width
* for more details.
*/
borderRightWidth: ReactPropTypes.number,
/** `borderBottomWidth` works like `border-bottom-width` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-width
* for more details.
*/
borderBottomWidth: ReactPropTypes.number,
/** `borderLeftWidth` works like `border-left-width` in CSS.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/border-left-width
* for more details.
*/
borderLeftWidth: ReactPropTypes.number,
/** `position` in React Native is similar to regular CSS, but
* everything is set to `relative` by default, so `absolute`
* positioning is always just relative to the parent.
*
* If you want to position a child using specific numbers of logical
* pixels relative to its parent, set the child to have `absolute`
* position.
*
* If you want to position a child relative to something
* that is not its parent, just don't use styles for that. Use the
* component tree.
*
* See https://github.com/facebook/css-layout
* for more details on how `position` differs between React Native
* and CSS.
*/
position: ReactPropTypes.oneOf([
'absolute',
'relative'
]),
/** `flexDirection` controls which directions children of a container go.
* `row` goes left to right, `column` goes top to bottom, and you may
* be able to guess what the other two do. It works like `flex-direction`
* in CSS, except the default is `column`.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/flex-direction
* for more details.
*/
flexDirection: ReactPropTypes.oneOf([
'row',
'row-reverse',
'column',
'column-reverse'
]),
/** `flexWrap` controls whether children can wrap around after they
* hit the end of a flex container.
* It works like `flex-wrap` in CSS (default: nowrap).
* See https://developer.mozilla.org/en-US/docs/Web/CSS/flex-wrap
* for more details.
*/
flexWrap: ReactPropTypes.oneOf([
'wrap',
'nowrap'
]),
/** `justifyContent` aligns children in the main direction.
* For example, if children are flowing vertically, `justifyContent`
* controls how they align vertically.
* It works like `justify-content` in CSS (default: flex-start).
* See https://developer.mozilla.org/en-US/docs/Web/CSS/justify-content
* for more details.
*/
justifyContent: ReactPropTypes.oneOf([
'flex-start',
'flex-end',
'center',
'space-between',
'space-around'
]),
/** `alignItems` aligns children in the cross direction.
* For example, if children are flowing vertically, `alignItems`
* controls how they align horizontally.
* It works like `align-items` in CSS (default: stretch).
* See https://developer.mozilla.org/en-US/docs/Web/CSS/align-items
* for more details.
*/
alignItems: ReactPropTypes.oneOf([
'flex-start',
'flex-end',
'center',
'stretch'
]),
/** `alignSelf` controls how a child aligns in the cross direction,
* overriding the `alignItems` of the parent. It works like `align-self`
* in CSS (default: auto).
* See https://developer.mozilla.org/en-US/docs/Web/CSS/align-self
* for more details.
*/
alignSelf: ReactPropTypes.oneOf([
'auto',
'flex-start',
'flex-end',
'center',
'stretch'
]),
/** `overflow` controls how a children are measured and displayed.
* `overflow: hidden` causes views to be clipped while `overflow: scroll`
* causes views to be measured independently of their parents main axis.`
* It works like `overflow` in CSS (default: visible).
* See https://developer.mozilla.org/en/docs/Web/CSS/overflow
* for more details.
*/
overflow: ReactPropTypes.oneOf([
'visible',
'hidden',
'scroll',
]),
/** In React Native `flex` does not work the same way that it does in CSS.
* `flex` is a number rather than a string, and it works
* according to the `css-layout` library
* at https://github.com/facebook/css-layout.
*
* When `flex` is a positive number, it makes the component flexible
* and it will be sized proportional to its flex value. So a
* component with `flex` set to 2 will take twice the space as a
* component with `flex` set to 1.
*
* When `flex` is 0, the component is sized according to `width`
* and `height` and it is inflexible.
*
* When `flex` is -1, the component is normally sized according
* `width` and `height`. However, if there's not enough space,
* the component will shrink to its `minWidth` and `minHeight`.
*
* flexGrow, flexShrink, and flexBasis work the same as in CSS.
*/
flex: ReactPropTypes.number,
flexGrow: ReactPropTypes.number,
flexShrink: ReactPropTypes.number,
flexBasis: ReactPropTypes.number,
/**
* Aspect ratio control the size of the undefined dimension of a node. Aspect ratio is a
* non-standard property only available in react native and not CSS.
*
* - On a node with a set width/height aspect ratio control the size of the unset dimension
* - On a node with a set flex basis aspect ratio controls the size of the node in the cross axis
* if unset
* - On a node with a measure function aspect ratio works as though the measure function measures
* the flex basis
* - On a node with flex grow/shrink aspect ratio controls the size of the node in the cross axis
* if unset
* - Aspect ratio takes min/max dimensions into account
*/
aspectRatio: ReactPropTypes.number,
/** `zIndex` controls which components display on top of others.
* Normally, you don't use `zIndex`. Components render according to
* their order in the document tree, so later components draw over
* earlier ones. `zIndex` may be useful if you have animations or custom
* modal interfaces where you don't want this behavior.
*
* It works like the CSS `z-index` property - components with a larger
* `zIndex` will render on top. Think of the z-direction like it's
* pointing from the phone into your eyeball.
* See https://developer.mozilla.org/en-US/docs/Web/CSS/z-index for
* more details.
*/
zIndex: ReactPropTypes.number,
};
module.exports = LayoutPropTypes;