| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @emails react-core |
| 8 | */ |
| 9 | |
| 10 | 'use strict'; |
| 11 | |
| 12 | // This test is a hot mess. It heavily uses internals and relies on DOM even |
| 13 | // though the responder plugin is only used in React Native. Sadness ensues. |
| 14 | // The coverage is valuable though, so we will keep it for now. |
| 15 | const {HostComponent} = require('react-reconciler/src/ReactWorkTags'); |
| 16 | |
| 17 | let EventBatching; |
| 18 | let EventPluginUtils; |
| 19 | let ResponderEventPlugin; |
| 20 | |
| 21 | const touch = function (nodeHandle, i) { |
| 22 | return {target: nodeHandle, identifier: i}; |
| 23 | }; |
| 24 | |
| 25 | function injectComponentTree(ComponentTree) { |
| 26 | EventPluginUtils.setComponentTree( |
| 27 | ComponentTree.getFiberCurrentPropsFromNode, |
| 28 | ComponentTree.getInstanceFromNode, |
| 29 | ComponentTree.getNodeFromInstance, |
| 30 | ); |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * @param {NodeHandle} nodeHandle @see NodeHandle. Handle of target. |
| 35 | * @param {Array<Touch>} touches All active touches. |
| 36 | * @param {Array<Touch>} changedTouches Only the touches that have changed. |
| 37 | * @return {TouchEvent} Model of a touch event that is compliant with responder |
| 38 | * system plugin. |
| 39 | */ |
| 40 | const touchEvent = function (nodeHandle, touches, changedTouches) { |
| 41 | return { |
| 42 | target: nodeHandle, |
| 43 | changedTouches: changedTouches, |
| 44 | touches: touches, |
| 45 | }; |
| 46 | }; |
| 47 | |
| 48 | const subsequence = function (arr, indices) { |
| 49 | const ret = []; |
| 50 | for (let i = 0; i < indices.length; i++) { |
| 51 | const index = indices[i]; |
| 52 | ret.push(arr[index]); |
| 53 | } |
| 54 | return ret; |
| 55 | }; |
| 56 | |
| 57 | const antiSubsequence = function (arr, indices) { |
| 58 | const ret = []; |
| 59 | for (let i = 0; i < arr.length; i++) { |
| 60 | if (indices.indexOf(i) === -1) { |
| 61 | ret.push(arr[i]); |
| 62 | } |
| 63 | } |
| 64 | return ret; |
| 65 | }; |
| 66 | |
| 67 | /** |
| 68 | * Helper for creating touch test config data. |
| 69 | * @param allTouchHandles |
| 70 | */ |
| 71 | const _touchConfig = function ( |
| 72 | topType, |
| 73 | targetNodeHandle, |
| 74 | allTouchHandles, |
| 75 | changedIndices, |
| 76 | eventTarget, |
| 77 | ) { |
| 78 | const allTouchObjects = allTouchHandles.map(touch); |
| 79 | const changedTouchObjects = subsequence(allTouchObjects, changedIndices); |
| 80 | const activeTouchObjects = |
| 81 | topType === 'topTouchStart' |
| 82 | ? allTouchObjects |
| 83 | : topType === 'topTouchMove' |
| 84 | ? allTouchObjects |
| 85 | : topType === 'topTouchEnd' |
| 86 | ? antiSubsequence(allTouchObjects, changedIndices) |
| 87 | : topType === 'topTouchCancel' |
| 88 | ? antiSubsequence(allTouchObjects, changedIndices) |
| 89 | : null; |
| 90 | |
| 91 | return { |
| 92 | nativeEvent: touchEvent( |
| 93 | targetNodeHandle, |
| 94 | activeTouchObjects, |
| 95 | changedTouchObjects, |
| 96 | ), |
| 97 | topLevelType: topType, |
| 98 | targetInst: getInstanceFromNode(targetNodeHandle), |
| 99 | }; |
| 100 | }; |
| 101 | |
| 102 | /** |
| 103 | * Creates test data for touch events using environment agnostic "node |
| 104 | * handles". |
| 105 | * |
| 106 | * @param {NodeHandle} nodeHandle Environment agnostic handle to DOM node. |
| 107 | * @param {Array<NodeHandle>} allTouchHandles Encoding of all "touches" in the |
| 108 | * form of a mapping from integer (touch `identifier`) to touch target. This is |
| 109 | * encoded in array form. Because of this, it is possible for two separate |
| 110 | * touches (meaning two separate indices) to have the same touch target ID - |
| 111 | * this corresponds to real world cases where two separate unique touches have |
| 112 | * the same target. These touches don't just represent all active touches, |
| 113 | * rather it also includes any touches that are not active, but are in the |
| 114 | * process of being removed. |
| 115 | * @param {Array<NodeHandle>} changedIndices Indices of `allTouchHandles` that |
| 116 | * have changed. |
| 117 | * @return {object} Config data used by test cases for extracting responder |
| 118 | * events. |
| 119 | */ |
| 120 | const startConfig = function (nodeHandle, allTouchHandles, changedIndices) { |
| 121 | return _touchConfig( |
| 122 | 'topTouchStart', |
| 123 | nodeHandle, |
| 124 | allTouchHandles, |
| 125 | changedIndices, |
| 126 | nodeHandle, |
| 127 | ); |
| 128 | }; |
| 129 | |
| 130 | /** |
| 131 | * @see `startConfig` |
| 132 | */ |
| 133 | const moveConfig = function (nodeHandle, allTouchHandles, changedIndices) { |
| 134 | return _touchConfig( |
| 135 | 'topTouchMove', |
| 136 | nodeHandle, |
| 137 | allTouchHandles, |
| 138 | changedIndices, |
| 139 | nodeHandle, |
| 140 | ); |
| 141 | }; |
| 142 | |
| 143 | /** |
| 144 | * @see `startConfig` |
| 145 | */ |
| 146 | const endConfig = function (nodeHandle, allTouchHandles, changedIndices) { |
| 147 | return _touchConfig( |
| 148 | 'topTouchEnd', |
| 149 | nodeHandle, |
| 150 | allTouchHandles, |
| 151 | changedIndices, |
| 152 | nodeHandle, |
| 153 | ); |
| 154 | }; |
| 155 | |
| 156 | /** |
| 157 | * Test config for events that aren't negotiation related, but rather result of |
| 158 | * a negotiation. |
| 159 | * |
| 160 | * Returns object of the form: |
| 161 | * |
| 162 | * { |
| 163 | * responderReject: { |
| 164 | * // Whatever "readableIDToID" was passed in. |
| 165 | * grandParent: {order: NA, assertEvent: null, returnVal: blah}, |
| 166 | * ... |
| 167 | * child: {order: NA, assertEvent: null, returnVal: blah}, |
| 168 | * } |
| 169 | * responderGrant: { |
| 170 | * grandParent: {order: NA, assertEvent: null, returnVal: blah}, |
| 171 | * ... |
| 172 | * child: {order: NA, assertEvent: null, returnVal: blah} |
| 173 | * } |
| 174 | * ... |
| 175 | * } |
| 176 | * |
| 177 | * After this is created, a test case would configure specific event orderings |
| 178 | * and optional assertions. Anything left with an `order` of `NA` will be |
| 179 | * required to never be invoked (the test runner will make sure it throws if |
| 180 | * ever invoked). |
| 181 | * |
| 182 | */ |
| 183 | const NA = -1; |
| 184 | const oneEventLoopTestConfig = function (readableIDToID) { |
| 185 | const ret = { |
| 186 | // Negotiation |
| 187 | scrollShouldSetResponder: {bubbled: {}, captured: {}}, |
| 188 | startShouldSetResponder: {bubbled: {}, captured: {}}, |
| 189 | moveShouldSetResponder: {bubbled: {}, captured: {}}, |
| 190 | responderTerminationRequest: {}, |
| 191 | |
| 192 | // Non-negotiation |
| 193 | responderReject: {}, // These do not bubble capture. |
| 194 | responderGrant: {}, |
| 195 | responderStart: {}, |
| 196 | responderMove: {}, |
| 197 | responderTerminate: {}, |
| 198 | responderEnd: {}, |
| 199 | responderRelease: {}, |
| 200 | }; |
| 201 | for (const eventName in ret) { |
| 202 | for (const readableNodeName in readableIDToID) { |
| 203 | if (ret[eventName].bubbled) { |
| 204 | // Two phase |
| 205 | ret[eventName].bubbled[readableNodeName] = { |
| 206 | order: NA, |
| 207 | assertEvent: null, |
| 208 | returnVal: undefined, |
| 209 | }; |
| 210 | ret[eventName].captured[readableNodeName] = { |
| 211 | order: NA, |
| 212 | assertEvent: null, |
| 213 | returnVal: undefined, |
| 214 | }; |
| 215 | } else { |
| 216 | ret[eventName][readableNodeName] = { |
| 217 | order: NA, |
| 218 | assertEvent: null, |
| 219 | returnVal: undefined, |
| 220 | }; |
| 221 | } |
| 222 | } |
| 223 | } |
| 224 | return ret; |
| 225 | }; |
| 226 | |
| 227 | /** |
| 228 | * @param {object} eventTestConfig |
| 229 | * @param {object} readableIDToID |
| 230 | */ |
| 231 | const registerTestHandlers = function (eventTestConfig, readableIDToID) { |
| 232 | const runs = {dispatchCount: 0}; |
| 233 | const neverFire = function (readableID, registrationName) { |
| 234 | runs.dispatchCount++; |
| 235 | expect('').toBe( |
| 236 | 'Event type: ' + |
| 237 | registrationName + |
| 238 | '\nShould never occur on:' + |
| 239 | readableID + |
| 240 | '\nFor event test config:\n' + |
| 241 | JSON.stringify(eventTestConfig) + |
| 242 | '\n', |
| 243 | ); |
| 244 | }; |
| 245 | |
| 246 | const registerOneEventType = function ( |
| 247 | registrationName, |
| 248 | eventTypeTestConfig, |
| 249 | ) { |
| 250 | for (const readableID in eventTypeTestConfig) { |
| 251 | const nodeConfig = eventTypeTestConfig[readableID]; |
| 252 | const id = readableIDToID[readableID]; |
| 253 | const handler = |
| 254 | nodeConfig.order === NA |
| 255 | ? neverFire.bind(null, readableID, registrationName) |
| 256 | : // We partially apply readableID and nodeConfig, as they change in the |
| 257 | // parent closure across iterations. |
| 258 | function (rID, config, e) { |
| 259 | expect( |
| 260 | rID + |
| 261 | '->' + |
| 262 | registrationName + |
| 263 | ' index:' + |
| 264 | runs.dispatchCount++, |
| 265 | ).toBe(rID + '->' + registrationName + ' index:' + config.order); |
| 266 | if (config.assertEvent) { |
| 267 | config.assertEvent(e); |
| 268 | } |
| 269 | return config.returnVal; |
| 270 | }.bind(null, readableID, nodeConfig); |
| 271 | putListener(getInstanceFromNode(id), registrationName, handler); |
| 272 | } |
| 273 | }; |
| 274 | for (const eventName in eventTestConfig) { |
| 275 | const oneEventTypeTestConfig = eventTestConfig[eventName]; |
| 276 | const hasTwoPhase = !!oneEventTypeTestConfig.bubbled; |
| 277 | if (hasTwoPhase) { |
| 278 | registerOneEventType( |
| 279 | ResponderEventPlugin.eventTypes[eventName].phasedRegistrationNames |
| 280 | .bubbled, |
| 281 | oneEventTypeTestConfig.bubbled, |
| 282 | ); |
| 283 | registerOneEventType( |
| 284 | ResponderEventPlugin.eventTypes[eventName].phasedRegistrationNames |
| 285 | .captured, |
| 286 | oneEventTypeTestConfig.captured, |
| 287 | ); |
| 288 | } else { |
| 289 | registerOneEventType( |
| 290 | ResponderEventPlugin.eventTypes[eventName].registrationName, |
| 291 | oneEventTypeTestConfig, |
| 292 | ); |
| 293 | } |
| 294 | } |
| 295 | return runs; |
| 296 | }; |
| 297 | |
| 298 | const run = function (config, hierarchyConfig, nativeEventConfig) { |
| 299 | let max = NA; |
| 300 | const searchForMax = function (nodeConfig) { |
| 301 | for (const readableID in nodeConfig) { |
| 302 | const order = nodeConfig[readableID].order; |
| 303 | max = order > max ? order : max; |
| 304 | } |
| 305 | }; |
| 306 | for (const eventName in config) { |
| 307 | const eventConfig = config[eventName]; |
| 308 | if (eventConfig.bubbled) { |
| 309 | searchForMax(eventConfig.bubbled); |
| 310 | searchForMax(eventConfig.captured); |
| 311 | } else { |
| 312 | searchForMax(eventConfig); |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | // Register the handlers |
| 317 | const runData = registerTestHandlers(config, hierarchyConfig); |
| 318 | |
| 319 | // Trigger the event |
| 320 | const extractedEvents = ResponderEventPlugin.extractEvents( |
| 321 | nativeEventConfig.topLevelType, |
| 322 | nativeEventConfig.targetInst, |
| 323 | nativeEventConfig.nativeEvent, |
| 324 | nativeEventConfig.target, |
| 325 | 0, |
| 326 | ); |
| 327 | |
| 328 | // At this point the negotiation events have been dispatched as part of the |
| 329 | // extraction process, but not the side effectful events. Below, we dispatch |
| 330 | // side effectful events. |
| 331 | EventBatching.runEventsInBatch(extractedEvents); |
| 332 | |
| 333 | // Ensure that every event that declared an `order`, was actually dispatched. |
| 334 | expect('number of events dispatched:' + runData.dispatchCount).toBe( |
| 335 | 'number of events dispatched:' + (max + 1), |
| 336 | ); // +1 for extra ++ |
| 337 | }; |
| 338 | |
| 339 | const GRANDPARENT_HOST_NODE = {}; |
| 340 | const PARENT_HOST_NODE = {}; |
| 341 | const CHILD_HOST_NODE = {}; |
| 342 | const CHILD_HOST_NODE2 = {}; |
| 343 | |
| 344 | // These intentionally look like Fibers. ReactTreeTraversal depends on their field names. |
| 345 | // TODO: we could test this with regular DOM nodes (and real fibers) instead. |
| 346 | const GRANDPARENT_INST = { |
| 347 | return: null, |
| 348 | tag: HostComponent, |
| 349 | stateNode: GRANDPARENT_HOST_NODE, |
| 350 | memoizedProps: {}, |
| 351 | }; |
| 352 | const PARENT_INST = { |
| 353 | return: GRANDPARENT_INST, |
| 354 | tag: HostComponent, |
| 355 | stateNode: PARENT_HOST_NODE, |
| 356 | memoizedProps: {}, |
| 357 | }; |
| 358 | const CHILD_INST = { |
| 359 | return: PARENT_INST, |
| 360 | tag: HostComponent, |
| 361 | stateNode: CHILD_HOST_NODE, |
| 362 | memoizedProps: {}, |
| 363 | }; |
| 364 | const CHILD_INST2 = { |
| 365 | return: PARENT_INST, |
| 366 | tag: HostComponent, |
| 367 | stateNode: CHILD_HOST_NODE2, |
| 368 | memoizedProps: {}, |
| 369 | }; |
| 370 | |
| 371 | GRANDPARENT_HOST_NODE.testInstance = GRANDPARENT_INST; |
| 372 | PARENT_HOST_NODE.testInstance = PARENT_INST; |
| 373 | CHILD_HOST_NODE.testInstance = CHILD_INST; |
| 374 | CHILD_HOST_NODE2.testInstance = CHILD_INST2; |
| 375 | |
| 376 | const three = { |
| 377 | grandParent: GRANDPARENT_HOST_NODE, |
| 378 | parent: PARENT_HOST_NODE, |
| 379 | child: CHILD_HOST_NODE, |
| 380 | }; |
| 381 | |
| 382 | const siblings = { |
| 383 | parent: PARENT_HOST_NODE, |
| 384 | childOne: CHILD_HOST_NODE, |
| 385 | childTwo: CHILD_HOST_NODE2, |
| 386 | }; |
| 387 | |
| 388 | function getInstanceFromNode(node) { |
| 389 | return node.testInstance; |
| 390 | } |
| 391 | |
| 392 | function getNodeFromInstance(inst) { |
| 393 | return inst.stateNode; |
| 394 | } |
| 395 | |
| 396 | function getFiberCurrentPropsFromNode(node) { |
| 397 | return node.testInstance.memoizedProps; |
| 398 | } |
| 399 | |
| 400 | function putListener(instance, registrationName, handler) { |
| 401 | instance.memoizedProps[registrationName] = handler; |
| 402 | } |
| 403 | |
| 404 | function deleteAllListeners(instance) { |
| 405 | instance.memoizedProps = {}; |
| 406 | } |
| 407 | |
| 408 | describe('ResponderEventPlugin', () => { |
| 409 | beforeEach(() => { |
| 410 | jest.resetModules(); |
| 411 | |
| 412 | EventBatching = require('react-native-renderer/src/legacy-events/EventBatching'); |
| 413 | EventPluginUtils = require('react-native-renderer/src/legacy-events/EventPluginUtils'); |
| 414 | ResponderEventPlugin = |
| 415 | require('react-native-renderer/src/legacy-events/ResponderEventPlugin').default; |
| 416 | |
| 417 | deleteAllListeners(GRANDPARENT_INST); |
| 418 | deleteAllListeners(PARENT_INST); |
| 419 | deleteAllListeners(CHILD_INST); |
| 420 | deleteAllListeners(CHILD_INST2); |
| 421 | |
| 422 | injectComponentTree({ |
| 423 | getInstanceFromNode, |
| 424 | getNodeFromInstance, |
| 425 | getFiberCurrentPropsFromNode, |
| 426 | }); |
| 427 | }); |
| 428 | |
| 429 | it('should do nothing when no one wants to respond', () => { |
| 430 | let config = oneEventLoopTestConfig(three); |
| 431 | config.startShouldSetResponder.captured.grandParent = { |
| 432 | order: 0, |
| 433 | returnVal: false, |
| 434 | }; |
| 435 | config.startShouldSetResponder.captured.parent = { |
| 436 | order: 1, |
| 437 | returnVal: false, |
| 438 | }; |
| 439 | config.startShouldSetResponder.captured.child = { |
| 440 | order: 2, |
| 441 | returnVal: false, |
| 442 | }; |
| 443 | config.startShouldSetResponder.bubbled.child = {order: 3, returnVal: false}; |
| 444 | config.startShouldSetResponder.bubbled.parent = { |
| 445 | order: 4, |
| 446 | returnVal: false, |
| 447 | }; |
| 448 | config.startShouldSetResponder.bubbled.grandParent = { |
| 449 | order: 5, |
| 450 | returnVal: false, |
| 451 | }; |
| 452 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 453 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 454 | |
| 455 | // Now no handlers should be called on `touchEnd`. |
| 456 | config = oneEventLoopTestConfig(three); |
| 457 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 458 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 459 | }); |
| 460 | |
| 461 | /** |
| 462 | * Simple Start Granting |
| 463 | * -------------------- |
| 464 | */ |
| 465 | |
| 466 | it('should grant responder grandParent while capturing', () => { |
| 467 | let config = oneEventLoopTestConfig(three); |
| 468 | config.startShouldSetResponder.captured.grandParent = { |
| 469 | order: 0, |
| 470 | returnVal: true, |
| 471 | }; |
| 472 | config.responderGrant.grandParent = {order: 1}; |
| 473 | config.responderStart.grandParent = {order: 2}; |
| 474 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 475 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 476 | getInstanceFromNode(three.grandParent), |
| 477 | ); |
| 478 | |
| 479 | config = oneEventLoopTestConfig(three); |
| 480 | config.responderEnd.grandParent = {order: 0}; |
| 481 | config.responderRelease.grandParent = {order: 1}; |
| 482 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 483 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 484 | }); |
| 485 | |
| 486 | it('should grant responder parent while capturing', () => { |
| 487 | let config = oneEventLoopTestConfig(three); |
| 488 | config.startShouldSetResponder.captured.grandParent = { |
| 489 | order: 0, |
| 490 | returnVal: false, |
| 491 | }; |
| 492 | config.startShouldSetResponder.captured.parent = { |
| 493 | order: 1, |
| 494 | returnVal: true, |
| 495 | }; |
| 496 | config.responderGrant.parent = {order: 2}; |
| 497 | config.responderStart.parent = {order: 3}; |
| 498 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 499 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 500 | getInstanceFromNode(three.parent), |
| 501 | ); |
| 502 | |
| 503 | config = oneEventLoopTestConfig(three); |
| 504 | config.responderEnd.parent = {order: 0}; |
| 505 | config.responderRelease.parent = {order: 1}; |
| 506 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 507 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 508 | }); |
| 509 | |
| 510 | it('should grant responder child while capturing', () => { |
| 511 | let config = oneEventLoopTestConfig(three); |
| 512 | config.startShouldSetResponder.captured.grandParent = { |
| 513 | order: 0, |
| 514 | returnVal: false, |
| 515 | }; |
| 516 | config.startShouldSetResponder.captured.parent = { |
| 517 | order: 1, |
| 518 | returnVal: false, |
| 519 | }; |
| 520 | config.startShouldSetResponder.captured.child = {order: 2, returnVal: true}; |
| 521 | config.responderGrant.child = {order: 3}; |
| 522 | config.responderStart.child = {order: 4}; |
| 523 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 524 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 525 | getInstanceFromNode(three.child), |
| 526 | ); |
| 527 | |
| 528 | config = oneEventLoopTestConfig(three); |
| 529 | config.responderEnd.child = {order: 0}; |
| 530 | config.responderRelease.child = {order: 1}; |
| 531 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 532 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 533 | }); |
| 534 | |
| 535 | it('should grant responder child while bubbling', () => { |
| 536 | let config = oneEventLoopTestConfig(three); |
| 537 | config.startShouldSetResponder.captured.grandParent = { |
| 538 | order: 0, |
| 539 | returnVal: false, |
| 540 | }; |
| 541 | config.startShouldSetResponder.captured.parent = { |
| 542 | order: 1, |
| 543 | returnVal: false, |
| 544 | }; |
| 545 | config.startShouldSetResponder.captured.child = { |
| 546 | order: 2, |
| 547 | returnVal: false, |
| 548 | }; |
| 549 | config.startShouldSetResponder.bubbled.child = {order: 3, returnVal: true}; |
| 550 | config.responderGrant.child = {order: 4}; |
| 551 | config.responderStart.child = {order: 5}; |
| 552 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 553 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 554 | getInstanceFromNode(three.child), |
| 555 | ); |
| 556 | |
| 557 | config = oneEventLoopTestConfig(three); |
| 558 | config.responderEnd.child = {order: 0}; |
| 559 | config.responderRelease.child = {order: 1}; |
| 560 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 561 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 562 | }); |
| 563 | |
| 564 | it('should grant responder parent while bubbling', () => { |
| 565 | let config = oneEventLoopTestConfig(three); |
| 566 | config.startShouldSetResponder.captured.grandParent = { |
| 567 | order: 0, |
| 568 | returnVal: false, |
| 569 | }; |
| 570 | config.startShouldSetResponder.captured.parent = { |
| 571 | order: 1, |
| 572 | returnVal: false, |
| 573 | }; |
| 574 | config.startShouldSetResponder.captured.child = { |
| 575 | order: 2, |
| 576 | returnVal: false, |
| 577 | }; |
| 578 | config.startShouldSetResponder.bubbled.child = {order: 3, returnVal: false}; |
| 579 | config.startShouldSetResponder.bubbled.parent = {order: 4, returnVal: true}; |
| 580 | config.responderGrant.parent = {order: 5}; |
| 581 | config.responderStart.parent = {order: 6}; |
| 582 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 583 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 584 | getInstanceFromNode(three.parent), |
| 585 | ); |
| 586 | |
| 587 | config = oneEventLoopTestConfig(three); |
| 588 | config.responderEnd.parent = {order: 0}; |
| 589 | config.responderRelease.parent = {order: 1}; |
| 590 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 591 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 592 | }); |
| 593 | |
| 594 | it('should grant responder grandParent while bubbling', () => { |
| 595 | let config = oneEventLoopTestConfig(three); |
| 596 | config.startShouldSetResponder.captured.grandParent = { |
| 597 | order: 0, |
| 598 | returnVal: false, |
| 599 | }; |
| 600 | config.startShouldSetResponder.captured.parent = { |
| 601 | order: 1, |
| 602 | returnVal: false, |
| 603 | }; |
| 604 | config.startShouldSetResponder.captured.child = { |
| 605 | order: 2, |
| 606 | returnVal: false, |
| 607 | }; |
| 608 | config.startShouldSetResponder.bubbled.child = {order: 3, returnVal: false}; |
| 609 | config.startShouldSetResponder.bubbled.parent = { |
| 610 | order: 4, |
| 611 | returnVal: false, |
| 612 | }; |
| 613 | config.startShouldSetResponder.bubbled.grandParent = { |
| 614 | order: 5, |
| 615 | returnVal: true, |
| 616 | }; |
| 617 | config.responderGrant.grandParent = {order: 6}; |
| 618 | config.responderStart.grandParent = {order: 7}; |
| 619 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 620 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 621 | getInstanceFromNode(three.grandParent), |
| 622 | ); |
| 623 | |
| 624 | config = oneEventLoopTestConfig(three); |
| 625 | config.responderEnd.grandParent = {order: 0}; |
| 626 | config.responderRelease.grandParent = {order: 1}; |
| 627 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 628 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 629 | }); |
| 630 | |
| 631 | /** |
| 632 | * Simple Move Granting |
| 633 | * -------------------- |
| 634 | */ |
| 635 | |
| 636 | it('should grant responder grandParent while capturing move', () => { |
| 637 | let config = oneEventLoopTestConfig(three); |
| 638 | |
| 639 | config.startShouldSetResponder.captured.grandParent = {order: 0}; |
| 640 | config.startShouldSetResponder.captured.parent = {order: 1}; |
| 641 | config.startShouldSetResponder.captured.child = {order: 2}; |
| 642 | config.startShouldSetResponder.bubbled.child = {order: 3}; |
| 643 | config.startShouldSetResponder.bubbled.parent = {order: 4}; |
| 644 | config.startShouldSetResponder.bubbled.grandParent = {order: 5}; |
| 645 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 646 | |
| 647 | config = oneEventLoopTestConfig(three); |
| 648 | config.moveShouldSetResponder.captured.grandParent = { |
| 649 | order: 0, |
| 650 | returnVal: true, |
| 651 | }; |
| 652 | config.responderGrant.grandParent = {order: 1}; |
| 653 | config.responderMove.grandParent = {order: 2}; |
| 654 | run(config, three, moveConfig(three.child, [three.child], [0])); |
| 655 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 656 | getInstanceFromNode(three.grandParent), |
| 657 | ); |
| 658 | |
| 659 | config = oneEventLoopTestConfig(three); |
| 660 | config.responderEnd.grandParent = {order: 0}; |
| 661 | config.responderRelease.grandParent = {order: 1}; |
| 662 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 663 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 664 | }); |
| 665 | |
| 666 | it('should grant responder parent while capturing move', () => { |
| 667 | let config = oneEventLoopTestConfig(three); |
| 668 | |
| 669 | config.startShouldSetResponder.captured.grandParent = {order: 0}; |
| 670 | config.startShouldSetResponder.captured.parent = {order: 1}; |
| 671 | config.startShouldSetResponder.captured.child = {order: 2}; |
| 672 | config.startShouldSetResponder.bubbled.child = {order: 3}; |
| 673 | config.startShouldSetResponder.bubbled.parent = {order: 4}; |
| 674 | config.startShouldSetResponder.bubbled.grandParent = {order: 5}; |
| 675 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 676 | |
| 677 | config = oneEventLoopTestConfig(three); |
| 678 | config.moveShouldSetResponder.captured.grandParent = { |
| 679 | order: 0, |
| 680 | returnVal: false, |
| 681 | }; |
| 682 | config.moveShouldSetResponder.captured.parent = {order: 1, returnVal: true}; |
| 683 | config.responderGrant.parent = {order: 2}; |
| 684 | config.responderMove.parent = {order: 3}; |
| 685 | run(config, three, moveConfig(three.child, [three.child], [0])); |
| 686 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 687 | getInstanceFromNode(three.parent), |
| 688 | ); |
| 689 | |
| 690 | config = oneEventLoopTestConfig(three); |
| 691 | config.responderEnd.parent = {order: 0}; |
| 692 | config.responderRelease.parent = {order: 1}; |
| 693 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 694 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 695 | }); |
| 696 | |
| 697 | it('should grant responder child while capturing move', () => { |
| 698 | let config = oneEventLoopTestConfig(three); |
| 699 | |
| 700 | config.startShouldSetResponder.captured.grandParent = {order: 0}; |
| 701 | config.startShouldSetResponder.captured.parent = {order: 1}; |
| 702 | config.startShouldSetResponder.captured.child = {order: 2}; |
| 703 | config.startShouldSetResponder.bubbled.child = {order: 3}; |
| 704 | config.startShouldSetResponder.bubbled.parent = {order: 4}; |
| 705 | config.startShouldSetResponder.bubbled.grandParent = {order: 5}; |
| 706 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 707 | |
| 708 | config = oneEventLoopTestConfig(three); |
| 709 | config.moveShouldSetResponder.captured.grandParent = { |
| 710 | order: 0, |
| 711 | returnVal: false, |
| 712 | }; |
| 713 | config.moveShouldSetResponder.captured.parent = { |
| 714 | order: 1, |
| 715 | returnVal: false, |
| 716 | }; |
| 717 | config.moveShouldSetResponder.captured.child = {order: 2, returnVal: true}; |
| 718 | config.responderGrant.child = {order: 3}; |
| 719 | config.responderMove.child = {order: 4}; |
| 720 | run(config, three, moveConfig(three.child, [three.child], [0])); |
| 721 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 722 | getInstanceFromNode(three.child), |
| 723 | ); |
| 724 | |
| 725 | config = oneEventLoopTestConfig(three); |
| 726 | config.responderEnd.child = {order: 0}; |
| 727 | config.responderRelease.child = {order: 1}; |
| 728 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 729 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 730 | }); |
| 731 | |
| 732 | it('should grant responder child while bubbling move', () => { |
| 733 | let config = oneEventLoopTestConfig(three); |
| 734 | |
| 735 | config.startShouldSetResponder.captured.grandParent = {order: 0}; |
| 736 | config.startShouldSetResponder.captured.parent = {order: 1}; |
| 737 | config.startShouldSetResponder.captured.child = {order: 2}; |
| 738 | config.startShouldSetResponder.bubbled.child = {order: 3}; |
| 739 | config.startShouldSetResponder.bubbled.parent = {order: 4}; |
| 740 | config.startShouldSetResponder.bubbled.grandParent = {order: 5}; |
| 741 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 742 | |
| 743 | config = oneEventLoopTestConfig(three); |
| 744 | config.moveShouldSetResponder.captured.grandParent = { |
| 745 | order: 0, |
| 746 | returnVal: false, |
| 747 | }; |
| 748 | config.moveShouldSetResponder.captured.parent = { |
| 749 | order: 1, |
| 750 | returnVal: false, |
| 751 | }; |
| 752 | config.moveShouldSetResponder.captured.child = {order: 2, returnVal: false}; |
| 753 | config.moveShouldSetResponder.bubbled.child = {order: 3, returnVal: true}; |
| 754 | config.responderGrant.child = {order: 4}; |
| 755 | config.responderMove.child = {order: 5}; |
| 756 | run(config, three, moveConfig(three.child, [three.child], [0])); |
| 757 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 758 | getInstanceFromNode(three.child), |
| 759 | ); |
| 760 | |
| 761 | config = oneEventLoopTestConfig(three); |
| 762 | config.responderEnd.child = {order: 0}; |
| 763 | config.responderRelease.child = {order: 1}; |
| 764 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 765 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 766 | }); |
| 767 | |
| 768 | it('should grant responder parent while bubbling move', () => { |
| 769 | let config = oneEventLoopTestConfig(three); |
| 770 | |
| 771 | config.startShouldSetResponder.captured.grandParent = {order: 0}; |
| 772 | config.startShouldSetResponder.captured.parent = {order: 1}; |
| 773 | config.startShouldSetResponder.captured.child = {order: 2}; |
| 774 | config.startShouldSetResponder.bubbled.child = {order: 3}; |
| 775 | config.startShouldSetResponder.bubbled.parent = {order: 4}; |
| 776 | config.startShouldSetResponder.bubbled.grandParent = {order: 5}; |
| 777 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 778 | |
| 779 | config = oneEventLoopTestConfig(three); |
| 780 | config.moveShouldSetResponder.captured.grandParent = { |
| 781 | order: 0, |
| 782 | returnVal: false, |
| 783 | }; |
| 784 | config.moveShouldSetResponder.captured.parent = { |
| 785 | order: 1, |
| 786 | returnVal: false, |
| 787 | }; |
| 788 | config.moveShouldSetResponder.captured.child = {order: 2, returnVal: false}; |
| 789 | config.moveShouldSetResponder.bubbled.child = {order: 3, returnVal: false}; |
| 790 | config.moveShouldSetResponder.bubbled.parent = {order: 4, returnVal: true}; |
| 791 | config.responderGrant.parent = {order: 5}; |
| 792 | config.responderMove.parent = {order: 6}; |
| 793 | run(config, three, moveConfig(three.child, [three.child], [0])); |
| 794 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 795 | getInstanceFromNode(three.parent), |
| 796 | ); |
| 797 | |
| 798 | config = oneEventLoopTestConfig(three); |
| 799 | config.responderEnd.parent = {order: 0}; |
| 800 | config.responderRelease.parent = {order: 1}; |
| 801 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 802 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 803 | }); |
| 804 | |
| 805 | it('should grant responder grandParent while bubbling move', () => { |
| 806 | let config = oneEventLoopTestConfig(three); |
| 807 | |
| 808 | config.startShouldSetResponder.captured.grandParent = {order: 0}; |
| 809 | config.startShouldSetResponder.captured.parent = {order: 1}; |
| 810 | config.startShouldSetResponder.captured.child = {order: 2}; |
| 811 | config.startShouldSetResponder.bubbled.child = {order: 3}; |
| 812 | config.startShouldSetResponder.bubbled.parent = {order: 4}; |
| 813 | config.startShouldSetResponder.bubbled.grandParent = {order: 5}; |
| 814 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 815 | |
| 816 | config = oneEventLoopTestConfig(three); |
| 817 | config.moveShouldSetResponder.captured.grandParent = { |
| 818 | order: 0, |
| 819 | returnVal: false, |
| 820 | }; |
| 821 | config.moveShouldSetResponder.captured.parent = { |
| 822 | order: 1, |
| 823 | returnVal: false, |
| 824 | }; |
| 825 | config.moveShouldSetResponder.captured.child = {order: 2, returnVal: false}; |
| 826 | config.moveShouldSetResponder.bubbled.child = {order: 3, returnVal: false}; |
| 827 | config.moveShouldSetResponder.bubbled.parent = {order: 4, returnVal: false}; |
| 828 | config.moveShouldSetResponder.bubbled.grandParent = { |
| 829 | order: 5, |
| 830 | returnVal: true, |
| 831 | }; |
| 832 | config.responderGrant.grandParent = {order: 6}; |
| 833 | config.responderMove.grandParent = {order: 7}; |
| 834 | run(config, three, moveConfig(three.child, [three.child], [0])); |
| 835 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 836 | getInstanceFromNode(three.grandParent), |
| 837 | ); |
| 838 | |
| 839 | config = oneEventLoopTestConfig(three); |
| 840 | config.responderEnd.grandParent = {order: 0}; |
| 841 | config.responderRelease.grandParent = {order: 1}; |
| 842 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 843 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 844 | }); |
| 845 | |
| 846 | /** |
| 847 | * Common ancestor tests |
| 848 | * --------------------- |
| 849 | */ |
| 850 | |
| 851 | it('should bubble negotiation to first common ancestor of responder', () => { |
| 852 | let config = oneEventLoopTestConfig(three); |
| 853 | config.startShouldSetResponder.captured.grandParent = { |
| 854 | order: 0, |
| 855 | returnVal: false, |
| 856 | }; |
| 857 | config.startShouldSetResponder.captured.parent = { |
| 858 | order: 1, |
| 859 | returnVal: true, |
| 860 | }; |
| 861 | config.responderGrant.parent = {order: 2}; |
| 862 | config.responderStart.parent = {order: 3}; |
| 863 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 864 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 865 | getInstanceFromNode(three.parent), |
| 866 | ); |
| 867 | |
| 868 | // While `parent` is still responder, we create new handlers that verify |
| 869 | // the ordering of propagation, restarting the count at `0`. |
| 870 | config = oneEventLoopTestConfig(three); |
| 871 | config.startShouldSetResponder.captured.grandParent = { |
| 872 | order: 0, |
| 873 | returnVal: false, |
| 874 | }; |
| 875 | |
| 876 | config.startShouldSetResponder.bubbled.grandParent = { |
| 877 | order: 1, |
| 878 | returnVal: false, |
| 879 | }; |
| 880 | config.responderStart.parent = {order: 2}; |
| 881 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 882 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 883 | getInstanceFromNode(three.parent), |
| 884 | ); |
| 885 | |
| 886 | config = oneEventLoopTestConfig(three); |
| 887 | config.responderEnd.parent = {order: 0}; |
| 888 | config.responderRelease.parent = {order: 1}; |
| 889 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 890 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 891 | }); |
| 892 | |
| 893 | it('should bubble negotiation to first common ancestor of responder then transfer', () => { |
| 894 | let config = oneEventLoopTestConfig(three); |
| 895 | config.startShouldSetResponder.captured.grandParent = { |
| 896 | order: 0, |
| 897 | returnVal: false, |
| 898 | }; |
| 899 | config.startShouldSetResponder.captured.parent = { |
| 900 | order: 1, |
| 901 | returnVal: true, |
| 902 | }; |
| 903 | config.responderGrant.parent = {order: 2}; |
| 904 | config.responderStart.parent = {order: 3}; |
| 905 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 906 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 907 | getInstanceFromNode(three.parent), |
| 908 | ); |
| 909 | |
| 910 | config = oneEventLoopTestConfig(three); |
| 911 | |
| 912 | // Parent is responder, and responder is transferred by a second touch start |
| 913 | config.startShouldSetResponder.captured.grandParent = { |
| 914 | order: 0, |
| 915 | returnVal: true, |
| 916 | }; |
| 917 | config.responderGrant.grandParent = {order: 1}; |
| 918 | config.responderTerminationRequest.parent = {order: 2, returnVal: true}; |
| 919 | config.responderTerminate.parent = {order: 3}; |
| 920 | config.responderStart.grandParent = {order: 4}; |
| 921 | run( |
| 922 | config, |
| 923 | three, |
| 924 | startConfig(three.child, [three.child, three.child], [1]), |
| 925 | ); |
| 926 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 927 | getInstanceFromNode(three.grandParent), |
| 928 | ); |
| 929 | |
| 930 | config = oneEventLoopTestConfig(three); |
| 931 | config.responderEnd.grandParent = {order: 0}; |
| 932 | // one remains\ /one ended \ |
| 933 | run(config, three, endConfig(three.child, [three.child, three.child], [1])); |
| 934 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 935 | getInstanceFromNode(three.grandParent), |
| 936 | ); |
| 937 | |
| 938 | config = oneEventLoopTestConfig(three); |
| 939 | config.responderEnd.grandParent = {order: 0}; |
| 940 | config.responderRelease.grandParent = {order: 1}; |
| 941 | run(config, three, endConfig(three.child, [three.child], [0])); |
| 942 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 943 | }); |
| 944 | |
| 945 | /** |
| 946 | * If nothing is responder, then the negotiation should propagate directly to |
| 947 | * the deepest target in the second touch. |
| 948 | */ |
| 949 | it('should negotiate with deepest target on second touch if nothing is responder', () => { |
| 950 | // Initially nothing wants to become the responder |
| 951 | let config = oneEventLoopTestConfig(three); |
| 952 | config.startShouldSetResponder.captured.grandParent = { |
| 953 | order: 0, |
| 954 | returnVal: false, |
| 955 | }; |
| 956 | config.startShouldSetResponder.captured.parent = { |
| 957 | order: 1, |
| 958 | returnVal: false, |
| 959 | }; |
| 960 | config.startShouldSetResponder.bubbled.parent = { |
| 961 | order: 2, |
| 962 | returnVal: false, |
| 963 | }; |
| 964 | config.startShouldSetResponder.bubbled.grandParent = { |
| 965 | order: 3, |
| 966 | returnVal: false, |
| 967 | }; |
| 968 | |
| 969 | run(config, three, startConfig(three.parent, [three.parent], [0])); |
| 970 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 971 | |
| 972 | config = oneEventLoopTestConfig(three); |
| 973 | |
| 974 | // Now child wants to become responder. Negotiation should bubble as deep |
| 975 | // as the target is because we don't find first common ancestor (with |
| 976 | // current responder) because there is no current responder. |
| 977 | // (Even if this is the second active touch). |
| 978 | config.startShouldSetResponder.captured.grandParent = { |
| 979 | order: 0, |
| 980 | returnVal: false, |
| 981 | }; |
| 982 | config.startShouldSetResponder.captured.parent = { |
| 983 | order: 1, |
| 984 | returnVal: false, |
| 985 | }; |
| 986 | config.startShouldSetResponder.captured.child = { |
| 987 | order: 2, |
| 988 | returnVal: false, |
| 989 | }; |
| 990 | config.startShouldSetResponder.bubbled.child = {order: 3, returnVal: true}; |
| 991 | config.responderGrant.child = {order: 4}; |
| 992 | config.responderStart.child = {order: 5}; |
| 993 | // / Two active touches \ /one of them new\ |
| 994 | run( |
| 995 | config, |
| 996 | three, |
| 997 | startConfig(three.child, [three.parent, three.child], [1]), |
| 998 | ); |
| 999 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1000 | getInstanceFromNode(three.child), |
| 1001 | ); |
| 1002 | |
| 1003 | // Now we remove the original first touch, keeping the second touch that |
| 1004 | // started within the current responder (child). Nothing changes because |
| 1005 | // there's still touches that started inside of the current responder. |
| 1006 | config = oneEventLoopTestConfig(three); |
| 1007 | config.responderEnd.child = {order: 0}; |
| 1008 | // / one ended\ /one remains \ |
| 1009 | run( |
| 1010 | config, |
| 1011 | three, |
| 1012 | endConfig(three.child, [three.parent, three.child], [0]), |
| 1013 | ); |
| 1014 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1015 | getInstanceFromNode(three.child), |
| 1016 | ); |
| 1017 | |
| 1018 | // Okay, now let's add back that first touch (nothing should change) and |
| 1019 | // then we'll try peeling back the touches in the opposite order to make |
| 1020 | // sure that first removing the second touch instantly causes responder to |
| 1021 | // be released. |
| 1022 | config = oneEventLoopTestConfig(three); |
| 1023 | config.startShouldSetResponder.captured.grandParent = { |
| 1024 | order: 0, |
| 1025 | returnVal: false, |
| 1026 | }; |
| 1027 | config.startShouldSetResponder.captured.parent = { |
| 1028 | order: 1, |
| 1029 | returnVal: false, |
| 1030 | }; |
| 1031 | config.startShouldSetResponder.bubbled.parent = { |
| 1032 | order: 2, |
| 1033 | returnVal: false, |
| 1034 | }; |
| 1035 | config.startShouldSetResponder.bubbled.grandParent = { |
| 1036 | order: 3, |
| 1037 | returnVal: false, |
| 1038 | }; |
| 1039 | // Interesting: child still gets moves even though touch target is parent! |
| 1040 | // Current responder gets a `responderStart` for any touch while responder. |
| 1041 | config.responderStart.child = {order: 4}; |
| 1042 | // / Two active touches \ /one of them new\ |
| 1043 | run( |
| 1044 | config, |
| 1045 | three, |
| 1046 | startConfig(three.parent, [three.child, three.parent], [1]), |
| 1047 | ); |
| 1048 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1049 | getInstanceFromNode(three.child), |
| 1050 | ); |
| 1051 | |
| 1052 | // Now, move that new touch that had no effect, and did not start within |
| 1053 | // the current responder. |
| 1054 | config = oneEventLoopTestConfig(three); |
| 1055 | config.moveShouldSetResponder.captured.grandParent = { |
| 1056 | order: 0, |
| 1057 | returnVal: false, |
| 1058 | }; |
| 1059 | config.moveShouldSetResponder.captured.parent = { |
| 1060 | order: 1, |
| 1061 | returnVal: false, |
| 1062 | }; |
| 1063 | config.moveShouldSetResponder.bubbled.parent = {order: 2, returnVal: false}; |
| 1064 | config.moveShouldSetResponder.bubbled.grandParent = { |
| 1065 | order: 3, |
| 1066 | returnVal: false, |
| 1067 | }; |
| 1068 | // Interesting: child still gets moves even though touch target is parent! |
| 1069 | // Current responder gets a `responderMove` for any touch while responder. |
| 1070 | config.responderMove.child = {order: 4}; |
| 1071 | // / Two active touches \ /one of them moved\ |
| 1072 | run( |
| 1073 | config, |
| 1074 | three, |
| 1075 | moveConfig(three.parent, [three.child, three.parent], [1]), |
| 1076 | ); |
| 1077 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1078 | getInstanceFromNode(three.child), |
| 1079 | ); |
| 1080 | |
| 1081 | config = oneEventLoopTestConfig(three); |
| 1082 | config.responderEnd.child = {order: 0}; |
| 1083 | config.responderRelease.child = {order: 1}; |
| 1084 | // /child end \ /parent remain\ |
| 1085 | run( |
| 1086 | config, |
| 1087 | three, |
| 1088 | endConfig(three.child, [three.child, three.parent], [0]), |
| 1089 | ); |
| 1090 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 1091 | }); |
| 1092 | |
| 1093 | /** |
| 1094 | * If nothing is responder, then the negotiation should propagate directly to |
| 1095 | * the deepest target in the second touch. |
| 1096 | */ |
| 1097 | it('should negotiate until first common ancestor when there are siblings', () => { |
| 1098 | // Initially nothing wants to become the responder |
| 1099 | let config = oneEventLoopTestConfig(siblings); |
| 1100 | config.startShouldSetResponder.captured.parent = { |
| 1101 | order: 0, |
| 1102 | returnVal: false, |
| 1103 | }; |
| 1104 | config.startShouldSetResponder.captured.childOne = { |
| 1105 | order: 1, |
| 1106 | returnVal: false, |
| 1107 | }; |
| 1108 | config.startShouldSetResponder.bubbled.childOne = { |
| 1109 | order: 2, |
| 1110 | returnVal: true, |
| 1111 | }; |
| 1112 | config.responderGrant.childOne = {order: 3}; |
| 1113 | config.responderStart.childOne = {order: 4}; |
| 1114 | |
| 1115 | run( |
| 1116 | config, |
| 1117 | siblings, |
| 1118 | startConfig(siblings.childOne, [siblings.childOne], [0]), |
| 1119 | ); |
| 1120 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1121 | getInstanceFromNode(siblings.childOne), |
| 1122 | ); |
| 1123 | |
| 1124 | // If the touch target is the sibling item, the negotiation should only |
| 1125 | // propagate to first common ancestor of current responder and sibling (so |
| 1126 | // the parent). |
| 1127 | config = oneEventLoopTestConfig(siblings); |
| 1128 | config.startShouldSetResponder.captured.parent = { |
| 1129 | order: 0, |
| 1130 | returnVal: false, |
| 1131 | }; |
| 1132 | config.startShouldSetResponder.bubbled.parent = { |
| 1133 | order: 1, |
| 1134 | returnVal: false, |
| 1135 | }; |
| 1136 | config.responderStart.childOne = {order: 2}; |
| 1137 | |
| 1138 | const touchConfig = startConfig( |
| 1139 | siblings.childTwo, |
| 1140 | [siblings.childOne, siblings.childTwo], |
| 1141 | [1], |
| 1142 | ); |
| 1143 | run(config, siblings, touchConfig); |
| 1144 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1145 | getInstanceFromNode(siblings.childOne), |
| 1146 | ); |
| 1147 | |
| 1148 | // move childOne |
| 1149 | config = oneEventLoopTestConfig(siblings); |
| 1150 | config.moveShouldSetResponder.captured.parent = { |
| 1151 | order: 0, |
| 1152 | returnVal: false, |
| 1153 | }; |
| 1154 | config.moveShouldSetResponder.bubbled.parent = {order: 1, returnVal: false}; |
| 1155 | config.responderMove.childOne = {order: 2}; |
| 1156 | run( |
| 1157 | config, |
| 1158 | siblings, |
| 1159 | moveConfig( |
| 1160 | siblings.childOne, |
| 1161 | [siblings.childOne, siblings.childTwo], |
| 1162 | [0], |
| 1163 | ), |
| 1164 | ); |
| 1165 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1166 | getInstanceFromNode(siblings.childOne), |
| 1167 | ); |
| 1168 | |
| 1169 | // move childTwo: Only negotiates to `parent`. |
| 1170 | config = oneEventLoopTestConfig(siblings); |
| 1171 | config.moveShouldSetResponder.captured.parent = { |
| 1172 | order: 0, |
| 1173 | returnVal: false, |
| 1174 | }; |
| 1175 | config.moveShouldSetResponder.bubbled.parent = {order: 1, returnVal: false}; |
| 1176 | config.responderMove.childOne = {order: 2}; |
| 1177 | run( |
| 1178 | config, |
| 1179 | siblings, |
| 1180 | moveConfig( |
| 1181 | siblings.childTwo, |
| 1182 | [siblings.childOne, siblings.childTwo], |
| 1183 | [1], |
| 1184 | ), |
| 1185 | ); |
| 1186 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1187 | getInstanceFromNode(siblings.childOne), |
| 1188 | ); |
| 1189 | }); |
| 1190 | |
| 1191 | it('should notify of being rejected. responderStart/Move happens on current responder', () => { |
| 1192 | // Initially nothing wants to become the responder |
| 1193 | let config = oneEventLoopTestConfig(three); |
| 1194 | config.startShouldSetResponder.captured.grandParent = { |
| 1195 | order: 0, |
| 1196 | returnVal: false, |
| 1197 | }; |
| 1198 | config.startShouldSetResponder.captured.parent = { |
| 1199 | order: 1, |
| 1200 | returnVal: false, |
| 1201 | }; |
| 1202 | config.startShouldSetResponder.captured.child = { |
| 1203 | order: 2, |
| 1204 | returnVal: false, |
| 1205 | }; |
| 1206 | config.startShouldSetResponder.bubbled.child = {order: 3, returnVal: true}; |
| 1207 | config.responderGrant.child = {order: 4}; |
| 1208 | config.responderStart.child = {order: 5}; |
| 1209 | |
| 1210 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 1211 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1212 | getInstanceFromNode(three.child), |
| 1213 | ); |
| 1214 | |
| 1215 | // Suppose parent wants to become responder on move, and is rejected |
| 1216 | config = oneEventLoopTestConfig(three); |
| 1217 | config.moveShouldSetResponder.captured.grandParent = { |
| 1218 | order: 0, |
| 1219 | returnVal: false, |
| 1220 | }; |
| 1221 | config.moveShouldSetResponder.captured.parent = { |
| 1222 | order: 1, |
| 1223 | returnVal: false, |
| 1224 | }; |
| 1225 | config.moveShouldSetResponder.bubbled.parent = {order: 2, returnVal: true}; |
| 1226 | config.responderGrant.parent = {order: 3}; |
| 1227 | config.responderTerminationRequest.child = {order: 4, returnVal: false}; |
| 1228 | config.responderReject.parent = {order: 5}; |
| 1229 | // The start/move should occur on the original responder if new one is rejected |
| 1230 | config.responderMove.child = {order: 6}; |
| 1231 | |
| 1232 | let touchConfig = moveConfig(three.child, [three.child], [0]); |
| 1233 | run(config, three, touchConfig); |
| 1234 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1235 | getInstanceFromNode(three.child), |
| 1236 | ); |
| 1237 | |
| 1238 | config = oneEventLoopTestConfig(three); |
| 1239 | config.startShouldSetResponder.captured.grandParent = { |
| 1240 | order: 0, |
| 1241 | returnVal: false, |
| 1242 | }; |
| 1243 | config.startShouldSetResponder.captured.parent = { |
| 1244 | order: 1, |
| 1245 | returnVal: false, |
| 1246 | }; |
| 1247 | config.startShouldSetResponder.bubbled.parent = {order: 2, returnVal: true}; |
| 1248 | config.responderGrant.parent = {order: 3}; |
| 1249 | config.responderTerminationRequest.child = {order: 4, returnVal: false}; |
| 1250 | config.responderReject.parent = {order: 5}; |
| 1251 | // The start/move should occur on the original responder if new one is rejected |
| 1252 | config.responderStart.child = {order: 6}; |
| 1253 | |
| 1254 | touchConfig = startConfig(three.child, [three.child, three.child], [1]); |
| 1255 | run(config, three, touchConfig); |
| 1256 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1257 | getInstanceFromNode(three.child), |
| 1258 | ); |
| 1259 | }); |
| 1260 | |
| 1261 | it('should negotiate scroll', () => { |
| 1262 | // Initially nothing wants to become the responder |
| 1263 | let config = oneEventLoopTestConfig(three); |
| 1264 | config.startShouldSetResponder.captured.grandParent = { |
| 1265 | order: 0, |
| 1266 | returnVal: false, |
| 1267 | }; |
| 1268 | config.startShouldSetResponder.captured.parent = { |
| 1269 | order: 1, |
| 1270 | returnVal: false, |
| 1271 | }; |
| 1272 | config.startShouldSetResponder.captured.child = { |
| 1273 | order: 2, |
| 1274 | returnVal: false, |
| 1275 | }; |
| 1276 | config.startShouldSetResponder.bubbled.child = {order: 3, returnVal: true}; |
| 1277 | config.responderGrant.child = {order: 4}; |
| 1278 | config.responderStart.child = {order: 5}; |
| 1279 | |
| 1280 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 1281 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1282 | getInstanceFromNode(three.child), |
| 1283 | ); |
| 1284 | |
| 1285 | // If the touch target is the sibling item, the negotiation should only |
| 1286 | // propagate to first common ancestor of current responder and sibling (so |
| 1287 | // the parent). |
| 1288 | config = oneEventLoopTestConfig(three); |
| 1289 | config.scrollShouldSetResponder.captured.grandParent = { |
| 1290 | order: 0, |
| 1291 | returnVal: false, |
| 1292 | }; |
| 1293 | config.scrollShouldSetResponder.captured.parent = { |
| 1294 | order: 1, |
| 1295 | returnVal: false, |
| 1296 | }; |
| 1297 | config.scrollShouldSetResponder.bubbled.parent = { |
| 1298 | order: 2, |
| 1299 | returnVal: true, |
| 1300 | }; |
| 1301 | config.responderGrant.parent = {order: 3}; |
| 1302 | config.responderTerminationRequest.child = {order: 4, returnVal: false}; |
| 1303 | config.responderReject.parent = {order: 5}; |
| 1304 | |
| 1305 | run(config, three, { |
| 1306 | topLevelType: 'topScroll', |
| 1307 | targetInst: getInstanceFromNode(three.parent), |
| 1308 | nativeEvent: {}, |
| 1309 | }); |
| 1310 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1311 | getInstanceFromNode(three.child), |
| 1312 | ); |
| 1313 | |
| 1314 | // Now lets let the scroll take control this time. |
| 1315 | config = oneEventLoopTestConfig(three); |
| 1316 | config.scrollShouldSetResponder.captured.grandParent = { |
| 1317 | order: 0, |
| 1318 | returnVal: false, |
| 1319 | }; |
| 1320 | config.scrollShouldSetResponder.captured.parent = { |
| 1321 | order: 1, |
| 1322 | returnVal: false, |
| 1323 | }; |
| 1324 | config.scrollShouldSetResponder.bubbled.parent = { |
| 1325 | order: 2, |
| 1326 | returnVal: true, |
| 1327 | }; |
| 1328 | config.responderGrant.parent = {order: 3}; |
| 1329 | config.responderTerminationRequest.child = {order: 4, returnVal: true}; |
| 1330 | config.responderTerminate.child = {order: 5}; |
| 1331 | |
| 1332 | run(config, three, { |
| 1333 | topLevelType: 'topScroll', |
| 1334 | targetInst: getInstanceFromNode(three.parent), |
| 1335 | nativeEvent: {}, |
| 1336 | }); |
| 1337 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1338 | getInstanceFromNode(three.parent), |
| 1339 | ); |
| 1340 | }); |
| 1341 | |
| 1342 | it('should cancel correctly', () => { |
| 1343 | // Initially our child becomes responder |
| 1344 | let config = oneEventLoopTestConfig(three); |
| 1345 | config.startShouldSetResponder.captured.grandParent = { |
| 1346 | order: 0, |
| 1347 | returnVal: false, |
| 1348 | }; |
| 1349 | config.startShouldSetResponder.captured.parent = { |
| 1350 | order: 1, |
| 1351 | returnVal: false, |
| 1352 | }; |
| 1353 | config.startShouldSetResponder.captured.child = { |
| 1354 | order: 2, |
| 1355 | returnVal: false, |
| 1356 | }; |
| 1357 | config.startShouldSetResponder.bubbled.child = {order: 3, returnVal: true}; |
| 1358 | config.responderGrant.child = {order: 4}; |
| 1359 | config.responderStart.child = {order: 5}; |
| 1360 | |
| 1361 | run(config, three, startConfig(three.child, [three.child], [0])); |
| 1362 | expect(ResponderEventPlugin._getResponder()).toBe( |
| 1363 | getInstanceFromNode(three.child), |
| 1364 | ); |
| 1365 | |
| 1366 | config = oneEventLoopTestConfig(three); |
| 1367 | config.responderEnd.child = {order: 0}; |
| 1368 | config.responderTerminate.child = {order: 1}; |
| 1369 | |
| 1370 | const nativeEvent = _touchConfig( |
| 1371 | 'topTouchCancel', |
| 1372 | three.child, |
| 1373 | [three.child], |
| 1374 | [0], |
| 1375 | ); |
| 1376 | run(config, three, nativeEvent); |
| 1377 | expect(ResponderEventPlugin._getResponder()).toBe(null); |
| 1378 | }); |
| 1379 | |
| 1380 | it( |
| 1381 | 'should determine the first common ancestor correctly', |
| 1382 | async () => { |
| 1383 | // This test was moved here from the ReactTreeTraversal test since only the |
| 1384 | // ResponderEventPlugin uses `getLowestCommonAncestor` |
| 1385 | const React = require('react'); |
| 1386 | const ReactDOMClient = require('react-dom/client'); |
| 1387 | const act = require('internal-test-utils').act; |
| 1388 | const getLowestCommonAncestor = |
| 1389 | require('react-native-renderer/src/legacy-events/ResponderEventPlugin').getLowestCommonAncestor; |
| 1390 | // This works by accident and will likely break in the future. |
| 1391 | const ReactDOMComponentTree = require('react-dom-bindings/src/client/ReactDOMComponentTree'); |
| 1392 | |
| 1393 | class ChildComponent extends React.Component { |
| 1394 | divRef = React.createRef(); |
| 1395 | div1Ref = React.createRef(); |
| 1396 | div2Ref = React.createRef(); |
| 1397 | |
| 1398 | render() { |
| 1399 | return ( |
| 1400 | <div ref={this.divRef} id={this.props.id + '__DIV'}> |
| 1401 | <div ref={this.div1Ref} id={this.props.id + '__DIV_1'} /> |
| 1402 | <div ref={this.div2Ref} id={this.props.id + '__DIV_2'} /> |
| 1403 | </div> |
| 1404 | ); |
| 1405 | } |
| 1406 | } |
| 1407 | |
| 1408 | class ParentComponent extends React.Component { |
| 1409 | pRef = React.createRef(); |
| 1410 | p_P1Ref = React.createRef(); |
| 1411 | p_P1_C1Ref = React.createRef(); |
| 1412 | p_P1_C2Ref = React.createRef(); |
| 1413 | p_OneOffRef = React.createRef(); |
| 1414 | |
| 1415 | render() { |
| 1416 | return ( |
| 1417 | <div ref={this.pRef} id="P"> |
| 1418 | <div ref={this.p_P1Ref} id="P_P1"> |
| 1419 | <ChildComponent ref={this.p_P1_C1Ref} id="P_P1_C1" /> |
| 1420 | <ChildComponent ref={this.p_P1_C2Ref} id="P_P1_C2" /> |
| 1421 | </div> |
| 1422 | <div ref={this.p_OneOffRef} id="P_OneOff" /> |
| 1423 | </div> |
| 1424 | ); |
| 1425 | } |
| 1426 | } |
| 1427 | |
| 1428 | const container = document.createElement('div'); |
| 1429 | const root = ReactDOMClient.createRoot(container); |
| 1430 | let parent; |
| 1431 | await act(() => { |
| 1432 | root.render(<ParentComponent ref={current => (parent = current)} />); |
| 1433 | }); |
| 1434 | |
| 1435 | const ancestors = [ |
| 1436 | // Common ancestor with self is self. |
| 1437 | { |
| 1438 | one: parent.p_P1_C1Ref.current.div1Ref.current, |
| 1439 | two: parent.p_P1_C1Ref.current.div1Ref.current, |
| 1440 | com: parent.p_P1_C1Ref.current.div1Ref.current, |
| 1441 | }, |
| 1442 | // Common ancestor with self is self - even if topmost DOM. |
| 1443 | { |
| 1444 | one: parent.pRef.current, |
| 1445 | two: parent.pRef.current, |
| 1446 | com: parent.pRef.current, |
| 1447 | }, |
| 1448 | // Siblings |
| 1449 | { |
| 1450 | one: parent.p_P1_C1Ref.current.div1Ref.current, |
| 1451 | two: parent.p_P1_C1Ref.current.div2Ref.current, |
| 1452 | com: parent.p_P1_C1Ref.current.divRef.current, |
| 1453 | }, |
| 1454 | // Common ancestor with parent is the parent. |
| 1455 | { |
| 1456 | one: parent.p_P1_C1Ref.current.div1Ref.current, |
| 1457 | two: parent.p_P1_C1Ref.current.divRef.current, |
| 1458 | com: parent.p_P1_C1Ref.current.divRef.current, |
| 1459 | }, |
| 1460 | // Common ancestor with grandparent is the grandparent. |
| 1461 | { |
| 1462 | one: parent.p_P1_C1Ref.current.div1Ref.current, |
| 1463 | two: parent.p_P1Ref.current, |
| 1464 | com: parent.p_P1Ref.current, |
| 1465 | }, |
| 1466 | // Grandparent across subcomponent boundaries. |
| 1467 | { |
| 1468 | one: parent.p_P1_C1Ref.current.div1Ref.current, |
| 1469 | two: parent.p_P1_C2Ref.current.div1Ref.current, |
| 1470 | com: parent.p_P1Ref.current, |
| 1471 | }, |
| 1472 | // Something deep with something one-off. |
| 1473 | { |
| 1474 | one: parent.p_P1_C1Ref.current.div1Ref.current, |
| 1475 | two: parent.p_OneOffRef.current, |
| 1476 | com: parent.pRef.current, |
| 1477 | }, |
| 1478 | ]; |
| 1479 | let i; |
| 1480 | for (i = 0; i < ancestors.length; i++) { |
| 1481 | const plan = ancestors[i]; |
| 1482 | const firstCommon = getLowestCommonAncestor( |
| 1483 | ReactDOMComponentTree.getInstanceFromNode(plan.one), |
| 1484 | ReactDOMComponentTree.getInstanceFromNode(plan.two), |
| 1485 | ); |
| 1486 | expect(firstCommon).toBe( |
| 1487 | ReactDOMComponentTree.getInstanceFromNode(plan.com), |
| 1488 | ); |
| 1489 | } |
| 1490 | }, |
| 1491 | // TODO: this is a long running test, we should speed it up. |
| 1492 | 60 * 1000, |
| 1493 | ); |
| 1494 | }); |