yeet

node_modules/react-native/Libraries/LayoutAnimation/LayoutAnimation.js

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+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ * @format
+ */
+
+'use strict';
+
+const UIManager = require('../ReactNative/UIManager');
+
+import Platform from '../Utilities/Platform';
+
+type Type =
+  | 'spring'
+  | 'linear'
+  | 'easeInEaseOut'
+  | 'easeIn'
+  | 'easeOut'
+  | 'keyboard';
+
+type Property = 'opacity' | 'scaleX' | 'scaleY' | 'scaleXY';
+
+type AnimationConfig = $ReadOnly<{|
+  duration?: number,
+  delay?: number,
+  springDamping?: number,
+  initialVelocity?: number,
+  type?: Type,
+  property?: Property,
+|}>;
+
+export type LayoutAnimationConfig = $ReadOnly<{|
+  duration: number,
+  create?: AnimationConfig,
+  update?: AnimationConfig,
+  delete?: AnimationConfig,
+|}>;
+
+function configureNext(
+  config: LayoutAnimationConfig,
+  onAnimationDidEnd?: Function,
+) {
+  if (!Platform.isTesting) {
+    UIManager.configureNextLayoutAnimation(
+      config,
+      onAnimationDidEnd ?? function() {},
+      function() {} /* unused onError */,
+    );
+  }
+}
+
+function create(
+  duration: number,
+  type: Type,
+  property: Property,
+): LayoutAnimationConfig {
+  return {
+    duration,
+    create: {type, property},
+    update: {type},
+    delete: {type, property},
+  };
+}
+
+const Presets = {
+  easeInEaseOut: (create(
+    300,
+    'easeInEaseOut',
+    'opacity',
+  ): LayoutAnimationConfig),
+  linear: (create(500, 'linear', 'opacity'): LayoutAnimationConfig),
+  spring: {
+    duration: 700,
+    create: {
+      type: 'linear',
+      property: 'opacity',
+    },
+    update: {
+      type: 'spring',
+      springDamping: 0.4,
+    },
+    delete: {
+      type: 'linear',
+      property: 'opacity',
+    },
+  },
+};
+
+/**
+ * Automatically animates views to their new positions when the
+ * next layout happens.
+ *
+ * A common way to use this API is to call it before calling `setState`.
+ *
+ * Note that in order to get this to work on **Android** you need to set the following flags via `UIManager`:
+ *
+ *     UIManager.setLayoutAnimationEnabledExperimental && UIManager.setLayoutAnimationEnabledExperimental(true);
+ */
+const LayoutAnimation = {
+  /**
+   * Schedules an animation to happen on the next layout.
+   *
+   * @param config Specifies animation properties:
+   *
+   *   - `duration` in milliseconds
+   *   - `create`, `AnimationConfig` for animating in new views
+   *   - `update`, `AnimationConfig` for animating views that have been updated
+   *
+   * @param onAnimationDidEnd Called when the animation finished.
+   * Only supported on iOS.
+   * @param onError Called on error. Only supported on iOS.
+   */
+  configureNext,
+  /**
+   * Helper for creating a config for `configureNext`.
+   */
+  create,
+  Types: Object.freeze({
+    spring: 'spring',
+    linear: 'linear',
+    easeInEaseOut: 'easeInEaseOut',
+    easeIn: 'easeIn',
+    easeOut: 'easeOut',
+    keyboard: 'keyboard',
+  }),
+  Properties: Object.freeze({
+    opacity: 'opacity',
+    scaleX: 'scaleX',
+    scaleY: 'scaleY',
+    scaleXY: 'scaleXY',
+  }),
+  checkConfig(...args: Array<mixed>) {
+    console.error('LayoutAnimation.checkConfig(...) has been disabled.');
+  },
+  Presets,
+  easeInEaseOut: (configureNext.bind(null, Presets.easeInEaseOut): (
+    onAnimationDidEnd?: any,
+  ) => void),
+  linear: (configureNext.bind(null, Presets.linear): (
+    onAnimationDidEnd?: any,
+  ) => void),
+  spring: (configureNext.bind(null, Presets.spring): (
+    onAnimationDidEnd?: any,
+  ) => void),
+};
+
+module.exports = LayoutAnimation;