88 lines
2.3 KiB
JavaScript
88 lines
2.3 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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*
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* This class is responsible for coordinating the "focused"
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* state for TextInputs. All calls relating to the keyboard
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* should be funneled through here
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*/
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'use strict';
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const Platform = require('Platform');
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const UIManager = require('UIManager');
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const inputs = new Set();
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const TextInputState = {
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/**
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* Internal state
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*/
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_currentlyFocusedID: (null: ?number),
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/**
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* Returns the ID of the currently focused text field, if one exists
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* If no text field is focused it returns null
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*/
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currentlyFocusedField: function(): ?number {
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return this._currentlyFocusedID;
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},
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/**
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* @param {number} TextInputID id of the text field to focus
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* Focuses the specified text field
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* noop if the text field was already focused
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*/
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focusTextInput: function(textFieldID: ?number) {
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if (this._currentlyFocusedID !== textFieldID && textFieldID !== null) {
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this._currentlyFocusedID = textFieldID;
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if (Platform.OS === 'ios') {
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UIManager.focus(textFieldID);
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} else if (Platform.OS === 'android') {
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UIManager.dispatchViewManagerCommand(
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textFieldID,
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UIManager.AndroidTextInput.Commands.focusTextInput,
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null
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);
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}
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}
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},
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/**
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* @param {number} textFieldID id of the text field to unfocus
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* Unfocuses the specified text field
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* noop if it wasn't focused
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*/
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blurTextInput: function(textFieldID: ?number) {
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if (this._currentlyFocusedID === textFieldID && textFieldID !== null) {
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this._currentlyFocusedID = null;
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if (Platform.OS === 'ios') {
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UIManager.blur(textFieldID);
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} else if (Platform.OS === 'android') {
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UIManager.dispatchViewManagerCommand(
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textFieldID,
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UIManager.AndroidTextInput.Commands.blurTextInput,
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null
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);
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}
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}
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},
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registerInput: function(textFieldID: number) {
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inputs.add(textFieldID);
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},
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unregisterInput: function(textFieldID: number) {
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inputs.delete(textFieldID);
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},
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isTextInput: function(textFieldID: number) {
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return inputs.has(textFieldID);
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},
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};
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module.exports = TextInputState;
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