初始化提交

WebDriverAgentLib/Utilities/FBActiveAppDetectionPoint.m

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+/**
+* 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.
+*/
+
+#import "FBActiveAppDetectionPoint.h"
+
+#import "FBErrorBuilder.h"
+#import "FBLogger.h"
+#import "FBXCTestDaemonsProxy.h"
+#import "XCTestManager_ManagerInterface-Protocol.h"
+
+@implementation FBActiveAppDetectionPoint
+
+- (instancetype)init {
+  if ((self = [super init])) {
+    CGSize screenSize = [UIScreen mainScreen].bounds.size;
+    // Consider the element, which is located close to the top left corner of the screen the on-screen one.
+    CGFloat pointDistance = MIN(screenSize.width, screenSize.height) * (CGFloat) 0.2;
+    _coordinates = CGPointMake(pointDistance, pointDistance);
+  }
+  return self;
+}
+
++ (instancetype)sharedInstance
+{
+  static FBActiveAppDetectionPoint *instance;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    instance = [[self alloc] init];
+  });
+  return instance;
+}
+
++ (id<FBXCAccessibilityElement>)axElementWithPoint:(CGPoint)point
+{
+  __block id<FBXCAccessibilityElement> onScreenElement = nil;
+  id<XCTestManager_ManagerInterface> proxy = [FBXCTestDaemonsProxy testRunnerProxy];
+  dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+  [proxy _XCT_requestElementAtPoint:point
+                              reply:^(id element, NSError *error) {
+                                if (nil == error) {
+                                  onScreenElement = element;
+                                } else {
+                                  [FBLogger logFmt:@"Cannot request the screen point at %@", NSStringFromCGPoint(point)];
+                                }
+                                dispatch_semaphore_signal(sem);
+                              }];
+  dispatch_semaphore_wait(sem, dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3 * NSEC_PER_SEC)));
+  return onScreenElement;
+}
+
+- (id<FBXCAccessibilityElement>)axElement
+{
+  return [self.class axElementWithPoint:self.coordinates];
+}
+
+- (BOOL)setCoordinatesWithString:(NSString *)coordinatesStr error:(NSError **)error
+{
+  NSArray<NSString *> *screenPointCoords = [coordinatesStr componentsSeparatedByString:@","];
+  if (screenPointCoords.count != 2) {
+    return [[[FBErrorBuilder builder]
+             withDescriptionFormat:@"The screen point coordinates should be separated by a single comma character. Got '%@' instead", coordinatesStr]
+            buildError:error];
+  }
+  NSString *strX = [screenPointCoords.firstObject stringByTrimmingCharactersInSet:
+                    NSCharacterSet.whitespaceAndNewlineCharacterSet];
+  NSString *strY = [screenPointCoords.lastObject stringByTrimmingCharactersInSet:
+                    NSCharacterSet.whitespaceAndNewlineCharacterSet];
+  if (0 == strX.length || 0 == strY.length) {
+    return [[[FBErrorBuilder builder]
+             withDescriptionFormat:@"Both screen point coordinates should be valid numbers. Got '%@' instead", coordinatesStr]
+            buildError:error];
+  }
+  self.coordinates = CGPointMake((CGFloat) strX.doubleValue, (CGFloat) strY.doubleValue);
+  return YES;
+}
+
+- (NSString *)stringCoordinates
+{
+  return [NSString stringWithFormat:@"%.2f,%.2f", self.coordinates.x, self.coordinates.y];
+}
+
+@end