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| 1 | +/** |
| 2 | + * @author Richard Davey <rich@photonstorm.com> |
| 3 | + * @copyright 2018 Photon Storm Ltd. |
| 4 | + * @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License} |
| 5 | + */ |
| 6 | + |
| 7 | +var Class = require('../../utils/Class'); |
| 8 | +var Features = require('../../device/Features'); |
| 9 | +var NOOP = require('../../utils/Class'); |
| 10 | + |
| 11 | +/** |
| 12 | + * @classdesc |
| 13 | + * The Keyboard Manager is a helper class that belongs to the Input Manager. |
| 14 | + * |
| 15 | + * Its role is to listen for native DOM Keyboard Events and then pass them onto the Input Manager for further processing. |
| 16 | + * |
| 17 | + * You do not need to create this class directly, the Input Manager will create an instance of it automatically. |
| 18 | + * |
| 19 | + * @class KeyboardManager |
| 20 | + * @memberof Phaser.Input.Keyboard |
| 21 | + * @constructor |
| 22 | + * @since 3.16.0 |
| 23 | + * |
| 24 | + * @param {Phaser.Input.InputManager} inputManager - A reference to the Input Manager. |
| 25 | + */ |
| 26 | +var KeyboardManager = new Class({ |
| 27 | + |
| 28 | + initialize: |
| 29 | + |
| 30 | + function KeyboardManager (inputManager) |
| 31 | + { |
| 32 | + /** |
| 33 | + * A reference to the Input Manager. |
| 34 | + * |
| 35 | + * @name Phaser.Input.Keyboard.KeyboardManager#manager |
| 36 | + * @type {Phaser.Input.InputManager} |
| 37 | + * @since 3.16.0 |
| 38 | + */ |
| 39 | + this.manager = inputManager; |
| 40 | + |
| 41 | + /** |
| 42 | + * If true the DOM keyboard events will have event.preventDefault applied to them, if false they will propagate fully. |
| 43 | + * |
| 44 | + * @name Phaser.Input.Keyboard.KeyboardManager#capture |
| 45 | + * @type {boolean} |
| 46 | + * @default true |
| 47 | + * @since 3.16.0 |
| 48 | + */ |
| 49 | + this.capture = true; |
| 50 | + |
| 51 | + /** |
| 52 | + * A boolean that controls if the Keyboard Manager is enabled or not. |
| 53 | + * Can be toggled on the fly. |
| 54 | + * |
| 55 | + * @name Phaser.Input.Keyboard.KeyboardManager#enabled |
| 56 | + * @type {boolean} |
| 57 | + * @default false |
| 58 | + * @since 3.16.0 |
| 59 | + */ |
| 60 | + this.enabled = false; |
| 61 | + |
| 62 | + /** |
| 63 | + * The Keyboard Event target, as defined in the Game Config. |
| 64 | + * Typically the canvas to which the game is rendering, but can be any interactive DOM element. |
| 65 | + * |
| 66 | + * @name Phaser.Input.Keyboard.KeyboardManager#target |
| 67 | + * @type {any} |
| 68 | + * @since 3.16.0 |
| 69 | + */ |
| 70 | + this.target; |
| 71 | + |
| 72 | + /** |
| 73 | + * The Key Down Event handler. |
| 74 | + * This function is sent the native DOM KeyEvent. |
| 75 | + * Initially empty and bound in the `startListeners` method. |
| 76 | + * |
| 77 | + * @name Phaser.Input.Keyboard.KeyboardManager#onKeyDown |
| 78 | + * @type {function} |
| 79 | + * @since 3.16.00 |
| 80 | + */ |
| 81 | + this.onKeyDown = NOOP; |
| 82 | + |
| 83 | + /** |
| 84 | + * The Key Up Event handler. |
| 85 | + * This function is sent the native DOM KeyEvent. |
| 86 | + * Initially empty and bound in the `startListeners` method. |
| 87 | + * |
| 88 | + * @name Phaser.Input.Keyboard.KeyboardManager#onKeyUp |
| 89 | + * @type {function} |
| 90 | + * @since 3.16.00 |
| 91 | + */ |
| 92 | + this.onKeyUp = NOOP; |
| 93 | + |
| 94 | + inputManager.events.once('boot', this.boot, this); |
| 95 | + }, |
| 96 | + |
| 97 | + /** |
| 98 | + * The Keyboard Manager boot process. |
| 99 | + * |
| 100 | + * @method Phaser.Input.Keyboard.KeyboardManager#boot |
| 101 | + * @private |
| 102 | + * @since 3.16.0 |
| 103 | + */ |
| 104 | + boot: function () |
| 105 | + { |
| 106 | + var config = this.manager.config; |
| 107 | + |
| 108 | + // this.enabled = config.inputMouse; |
| 109 | + // this.target = config.inputMouseEventTarget; |
| 110 | + // this.capture = config.inputMouseCapture; |
| 111 | + |
| 112 | + if (!this.target) |
| 113 | + { |
| 114 | + this.target = this.manager.game.canvas; |
| 115 | + } |
| 116 | + |
| 117 | + if (this.enabled && this.target) |
| 118 | + { |
| 119 | + this.startListeners(); |
| 120 | + } |
| 121 | + }, |
| 122 | + |
| 123 | + /** |
| 124 | + * Starts the Mouse Event listeners running. |
| 125 | + * This is called automatically and does not need to be manually invoked. |
| 126 | + * |
| 127 | + * @method Phaser.Input.Keyboard.KeyboardManager#startListeners |
| 128 | + * @since 3.16.0 |
| 129 | + */ |
| 130 | + startListeners: function () |
| 131 | + { |
| 132 | + var _this = this; |
| 133 | + var canvas = this.manager.canvas; |
| 134 | + |
| 135 | + this.onMouseDown = function (event) |
| 136 | + { |
| 137 | + if (event.defaultPrevented || !_this.enabled || !_this.manager) |
| 138 | + { |
| 139 | + // Do nothing if event already handled |
| 140 | + return; |
| 141 | + } |
| 142 | + |
| 143 | + _this.manager.queueMouseDown(event); |
| 144 | + |
| 145 | + if (_this.capture && event.target === canvas) |
| 146 | + { |
| 147 | + event.preventDefault(); |
| 148 | + } |
| 149 | + }; |
| 150 | + |
| 151 | + this.onMouseUp = function (event) |
| 152 | + { |
| 153 | + if (event.defaultPrevented || !_this.enabled || !_this.manager) |
| 154 | + { |
| 155 | + // Do nothing if event already handled |
| 156 | + return; |
| 157 | + } |
| 158 | + |
| 159 | + _this.manager.queueMouseUp(event); |
| 160 | + |
| 161 | + if (_this.capture && event.target === canvas) |
| 162 | + { |
| 163 | + event.preventDefault(); |
| 164 | + } |
| 165 | + }; |
| 166 | + |
| 167 | + var target = this.target; |
| 168 | + |
| 169 | + if (!target) |
| 170 | + { |
| 171 | + return; |
| 172 | + } |
| 173 | + |
| 174 | + var passive = { passive: true }; |
| 175 | + var nonPassive = { passive: false }; |
| 176 | + |
| 177 | + target.addEventListener('mousedown', this.onMouseDown, (this.capture) ? nonPassive : passive); |
| 178 | + target.addEventListener('mouseup', this.onMouseUp, (this.capture) ? nonPassive : passive); |
| 179 | + |
| 180 | + if (window) |
| 181 | + { |
| 182 | + window.addEventListener('mousedown', this.onMouseDown, nonPassive); |
| 183 | + window.addEventListener('mouseup', this.onMouseUp, nonPassive); |
| 184 | + } |
| 185 | + |
| 186 | + this.enabled = true; |
| 187 | + }, |
| 188 | + |
| 189 | + /** |
| 190 | + * Stops the Mouse Event listeners. |
| 191 | + * This is called automatically and does not need to be manually invoked. |
| 192 | + * |
| 193 | + * @method Phaser.Input.Keyboard.KeyboardManager#stopListeners |
| 194 | + * @since 3.16.0 |
| 195 | + */ |
| 196 | + stopListeners: function () |
| 197 | + { |
| 198 | + var target = this.target; |
| 199 | + |
| 200 | + target.removeEventListener('mousedown', this.onMouseDown); |
| 201 | + target.removeEventListener('mouseup', this.onMouseUp); |
| 202 | + |
| 203 | + if (window) |
| 204 | + { |
| 205 | + window.removeEventListener('mousedown', this.onMouseDown); |
| 206 | + window.removeEventListener('mouseup', this.onMouseUp); |
| 207 | + } |
| 208 | + }, |
| 209 | + |
| 210 | + /** |
| 211 | + * Destroys this Mouse Manager instance. |
| 212 | + * |
| 213 | + * @method Phaser.Input.Keyboard.KeyboardManager#destroy |
| 214 | + * @since 3.16.0 |
| 215 | + */ |
| 216 | + destroy: function () |
| 217 | + { |
| 218 | + this.stopListeners(); |
| 219 | + |
| 220 | + this.target = null; |
| 221 | + this.enabled = false; |
| 222 | + this.manager = null; |
| 223 | + } |
| 224 | + |
| 225 | +}); |
| 226 | + |
| 227 | +module.exports = KeyboardManager; |
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