xref: /expo/ios/Client/EXRootViewController.m (revision bbef49b2) 
1// Copyright 2015-present 650 Industries. All rights reserved.
2
3@import UIKit;
4
5#import "EXAppDelegate.h"
6#import "EXAppViewController.h"
7#import "EXButtonView.h"
8#import "EXHomeAppManager.h"
9#import "EXHomeDiagnosticsViewController.h"
10#import "EXKernel.h"
11#import "EXAppLoader.h"
12#import "EXKernelAppRecord.h"
13#import "EXKernelAppRegistry.h"
14#import "EXKernelDevKeyCommands.h"
15#import "EXKernelLinkingManager.h"
16#import "EXKernelServiceRegistry.h"
17#import "EXMenuGestureRecognizer.h"
18#import "EXMenuViewController.h"
19#import "EXRootViewController.h"
20#import "EXMenuWindow.h"
21
22NSString * const kEXHomeDisableNuxDefaultsKey = @"EXKernelDisableNuxDefaultsKey";
23NSString * const kEXHomeIsNuxFinishedDefaultsKey = @"EXHomeIsNuxFinishedDefaultsKey";
24
25NS_ASSUME_NONNULL_BEGIN
26
27@interface EXRootViewController () <EXAppBrowserController>
28
29@property (nonatomic, strong) EXMenuViewController *menuViewController;
30@property (nonatomic, assign) BOOL isMenuVisible;
31@property (nonatomic, assign) BOOL isAnimatingMenu;
32@property (nonatomic, assign) BOOL isAnimatingAppTransition;
33@property (nonatomic, strong) EXButtonView *btnMenu;
34@property (nonatomic, strong, nullable) EXMenuWindow *menuWindow;
35
36@end
37
38@implementation EXRootViewController
39
40- (instancetype)init
41{
42  if (self = [super init]) {
43    [EXKernel sharedInstance].browserController = self;
44    [[NSNotificationCenter defaultCenter] addObserver:self
45                                             selector:@selector(_updateMenuButtonBehavior)
46                                                 name:kEXKernelDidChangeMenuBehaviorNotification
47                                               object:nil];
48    [self _maybeResetNuxState];
49  }
50  return self;
51}
52
53- (void)viewDidLoad
54{
55  [super viewDidLoad];
56  _btnMenu = [[EXButtonView alloc] init];
57  _btnMenu.hidden = YES;
58  [self.view addSubview:_btnMenu];
59  EXMenuGestureRecognizer *menuGestureRecognizer = [[EXMenuGestureRecognizer alloc] initWithTarget:self action:@selector(_onMenuGestureRecognized:)];
60  [((EXAppDelegate *)[UIApplication sharedApplication].delegate).window addGestureRecognizer:menuGestureRecognizer];
61}
62
63- (void)viewWillLayoutSubviews
64{
65  [super viewWillLayoutSubviews];
66  _btnMenu.frame = CGRectMake(0, 0, 48.0f, 48.0f);
67  _btnMenu.center = CGPointMake(self.view.frame.size.width - 36.0f, self.view.frame.size.height - 72.0f);
68  [self.view bringSubviewToFront:_btnMenu];
69}
70
71#pragma mark - EXViewController
72
73- (void)createRootAppAndMakeVisible
74{
75  EXHomeAppManager *homeAppManager = [[EXHomeAppManager alloc] init];
76  EXAppLoader *homeAppLoader = [[EXAppLoader alloc] initWithLocalManifest:[EXHomeAppManager bundledHomeManifest]];
77  EXKernelAppRecord *homeAppRecord = [[EXKernelAppRecord alloc] initWithAppLoader:homeAppLoader appManager:homeAppManager];
78  [[EXKernel sharedInstance].appRegistry registerHomeAppRecord:homeAppRecord];
79  [self moveAppToVisible:homeAppRecord];
80}
81
82#pragma mark - EXAppBrowserController
83
84- (void)moveAppToVisible:(EXKernelAppRecord *)appRecord
85{
86  [self _foregroundAppRecord:appRecord];
87
88  // When foregrounding the app record we want to add it to the history to handle the edge case
89  // where a user opened a project, then went to home and cleared history, then went back to a
90  // the already open project.
91  [self addHistoryItemWithUrl:appRecord.appLoader.manifestUrl manifest:appRecord.appLoader.manifest];
92}
93
94- (void)toggleMenuWithCompletion:(void (^ _Nullable)(void))completion
95{
96  [self setIsMenuVisible:!_isMenuVisible completion:completion];
97}
98
99- (void)setIsMenuVisible:(BOOL)isMenuVisible completion:(void (^ _Nullable)(void))completion
100{
101  if (!_menuViewController) {
102    _menuViewController = [[EXMenuViewController alloc] init];
103  }
104  if (isMenuVisible != _isMenuVisible) {
105    if (!_isAnimatingMenu) {
106      _isMenuVisible = isMenuVisible;
107      [self _animateMenuToVisible:_isMenuVisible completion:completion];
108    }
109  } else {
110    completion();
111  }
112}
113
114- (void)showDiagnostics
115{
116  __weak typeof(self) weakSelf = self;
117  [self setIsMenuVisible:NO completion:^{
118    __strong typeof(weakSelf) strongSelf = weakSelf;
119    if (strongSelf) {
120      EXHomeDiagnosticsViewController *vcDiagnostics = [[EXHomeDiagnosticsViewController alloc] init];
121      [strongSelf presentViewController:vcDiagnostics animated:NO completion:nil];
122    }
123  }];
124}
125
126- (void)showQRReader
127{
128  [self moveHomeToVisible];
129  [[self _getHomeAppManager] showQRReader];
130}
131
132- (void)moveHomeToVisible
133{
134  __weak typeof(self) weakSelf = self;
135  [self setIsMenuVisible:NO completion:^{
136    __strong typeof(weakSelf) strongSelf = weakSelf;
137    if (strongSelf) {
138      [strongSelf moveAppToVisible:[EXKernel sharedInstance].appRegistry.homeAppRecord];
139
140      if (strongSelf.isMenuVisible) {
141        [strongSelf setIsMenuVisible:NO completion:nil];
142      }
143    }
144  }];
145}
146
147- (void)refreshVisibleApp
148{
149  // this is different from Util.reload()
150  // because it can work even on an errored app record (e.g. with no manifest, or with no running bridge).
151  [self setIsMenuVisible:NO completion:nil];
152  EXKernelAppRecord *visibleApp = [EXKernel sharedInstance].visibleApp;
153  [[EXKernel sharedInstance] logAnalyticsEvent:@"RELOAD_EXPERIENCE" forAppRecord:visibleApp];
154  NSURL *urlToRefresh = visibleApp.appLoader.manifestUrl;
155
156  // Unregister visible app record so all modules get destroyed.
157  [[[EXKernel sharedInstance] appRegistry] unregisterAppWithRecord:visibleApp];
158
159  // Create new app record.
160  [[EXKernel sharedInstance] createNewAppWithUrl:urlToRefresh initialProps:nil];
161}
162
163- (void)addHistoryItemWithUrl:(NSURL *)manifestUrl manifest:(NSDictionary *)manifest
164{
165  [[self _getHomeAppManager] addHistoryItemWithUrl:manifestUrl manifest:manifest];
166}
167
168- (void)getHistoryUrlForExperienceId:(NSString *)experienceId completion:(void (^)(NSString *))completion
169{
170  return [[self _getHomeAppManager] getHistoryUrlForExperienceId:experienceId completion:completion];
171}
172
173- (void)setIsNuxFinished:(BOOL)isFinished
174{
175  [[NSUserDefaults standardUserDefaults] setBool:isFinished forKey:kEXHomeIsNuxFinishedDefaultsKey];
176  [[NSUserDefaults standardUserDefaults] synchronize];
177}
178
179- (BOOL)isNuxFinished
180{
181  return [[NSUserDefaults standardUserDefaults] boolForKey:kEXHomeIsNuxFinishedDefaultsKey];
182}
183
184- (void)appDidFinishLoadingSuccessfully:(EXKernelAppRecord *)appRecord
185{
186  // show nux if needed
187  if (!self.isNuxFinished
188      && appRecord == [EXKernel sharedInstance].visibleApp
189      && appRecord != [EXKernel sharedInstance].appRegistry.homeAppRecord
190      && !self.isMenuVisible) {
191    [self setIsMenuVisible:YES completion:nil];
192  }
193
194  // check button availability when any new app loads
195  [self _updateMenuButtonBehavior];
196}
197
198#pragma mark - internal
199
200- (void)_foregroundAppRecord:(EXKernelAppRecord *)appRecord
201{
202  if (_isAnimatingAppTransition) {
203    return;
204  }
205  EXAppViewController *viewControllerToShow = appRecord.viewController;
206  EXAppViewController *viewControllerToHide;
207  if (viewControllerToShow != self.contentViewController) {
208    _isAnimatingAppTransition = YES;
209    if (self.contentViewController) {
210      viewControllerToHide = (EXAppViewController *)self.contentViewController;
211    }
212    if (viewControllerToShow) {
213      [viewControllerToShow willMoveToParentViewController:self];
214      [self.view addSubview:viewControllerToShow.view];
215      [viewControllerToShow foregroundControllers];
216    }
217
218    __weak typeof(self) weakSelf = self;
219    void (^transitionFinished)(void) = ^{
220      __strong typeof(weakSelf) strongSelf = weakSelf;
221      if (strongSelf) {
222        if (viewControllerToHide) {
223          // backgrounds and then dismisses all modals that are presented by the app
224          [viewControllerToHide backgroundControllers];
225          [viewControllerToHide dismissViewControllerAnimated:NO completion:nil];
226          [viewControllerToHide willMoveToParentViewController:nil];
227          [viewControllerToHide.view removeFromSuperview];
228          [viewControllerToHide didMoveToParentViewController:nil];
229        }
230        if (viewControllerToShow) {
231          [viewControllerToShow didMoveToParentViewController:strongSelf];
232          strongSelf.contentViewController = viewControllerToShow;
233        }
234        [strongSelf.view setNeedsLayout];
235        strongSelf.isAnimatingAppTransition = NO;
236        if (strongSelf.delegate) {
237          [strongSelf.delegate viewController:strongSelf didNavigateAppToVisible:appRecord];
238        }
239      }
240    };
241
242    BOOL animated = (viewControllerToHide && viewControllerToShow);
243    if (animated) {
244      if (viewControllerToHide.contentView) {
245        viewControllerToHide.contentView.transform = CGAffineTransformIdentity;
246        viewControllerToHide.contentView.alpha = 1.0f;
247      }
248      if (viewControllerToShow.contentView) {
249        viewControllerToShow.contentView.transform = CGAffineTransformMakeScale(1.1f, 1.1f);
250        viewControllerToShow.contentView.alpha = 0;
251      }
252      [UIView animateWithDuration:0.3f animations:^{
253        if (viewControllerToHide.contentView) {
254          viewControllerToHide.contentView.transform = CGAffineTransformMakeScale(0.95f, 0.95f);
255          viewControllerToHide.contentView.alpha = 0.5f;
256        }
257        if (viewControllerToShow.contentView) {
258          viewControllerToShow.contentView.transform = CGAffineTransformIdentity;
259          viewControllerToShow.contentView.alpha = 1.0f;
260        }
261      } completion:^(BOOL finished) {
262        transitionFinished();
263      }];
264    } else {
265      transitionFinished();
266    }
267  }
268}
269
270- (void)_animateMenuToVisible:(BOOL)visible completion:(void (^ _Nullable)(void))completion
271{
272  _isAnimatingMenu = YES;
273  __weak typeof(self) weakSelf = self;
274  if (visible) {
275    [_menuViewController willMoveToParentViewController:self];
276
277    if (_menuWindow == nil) {
278      _menuWindow = [[EXMenuWindow alloc] init];
279    }
280
281    [_menuWindow setFrame:self.view.frame];
282    [_menuWindow addSubview:_menuViewController.view];
283    [_menuWindow makeKeyAndVisible];
284
285    _menuViewController.view.alpha = 0.0f;
286    _menuViewController.view.transform = CGAffineTransformMakeScale(1.1f, 1.1f);
287    [UIView animateWithDuration:0.1f animations:^{
288      self.menuViewController.view.alpha = 1.0f;
289      self.menuViewController.view.transform = CGAffineTransformIdentity;
290    } completion:^(BOOL finished) {
291      __strong typeof(weakSelf) strongSelf = weakSelf;
292      if (strongSelf) {
293        strongSelf.isAnimatingMenu = NO;
294        [strongSelf.menuViewController didMoveToParentViewController:self];
295        if (completion) {
296          completion();
297        }
298      }
299    }];
300  } else {
301    _menuViewController.view.alpha = 1.0f;
302    [UIView animateWithDuration:0.1f animations:^{
303      self.menuViewController.view.alpha = 0.0f;
304    } completion:^(BOOL finished) {
305      __strong typeof(weakSelf) strongSelf = weakSelf;
306      if (strongSelf) {
307        strongSelf.isAnimatingMenu = NO;
308        [strongSelf.menuViewController willMoveToParentViewController:nil];
309        [strongSelf.menuViewController.view removeFromSuperview];
310        [strongSelf.menuViewController didMoveToParentViewController:nil];
311        strongSelf.menuWindow = nil;
312        if (completion) {
313          completion();
314        }
315      }
316    }];
317  }
318}
319
320- (EXHomeAppManager *)_getHomeAppManager
321{
322  return (EXHomeAppManager *)[EXKernel sharedInstance].appRegistry.homeAppRecord.appManager;
323}
324
325- (void)_maybeResetNuxState
326{
327  // used by appetize: optionally disable nux
328  BOOL disableNuxDefaultsValue = [[NSUserDefaults standardUserDefaults] boolForKey:kEXHomeDisableNuxDefaultsKey];
329  if (disableNuxDefaultsValue) {
330    [self setIsNuxFinished:YES];
331    [[NSUserDefaults standardUserDefaults] removeObjectForKey:kEXHomeDisableNuxDefaultsKey];
332  }
333}
334
335- (void)_updateMenuButtonBehavior
336{
337  BOOL shouldShowButton = [[EXKernelDevKeyCommands sharedInstance] isLegacyMenuButtonAvailable];
338  dispatch_async(dispatch_get_main_queue(), ^{
339    self.btnMenu.hidden = !shouldShowButton;
340  });
341}
342
343- (void)_onMenuGestureRecognized:(EXMenuGestureRecognizer *)sender
344{
345  if (sender.state == UIGestureRecognizerStateEnded) {
346    [[EXKernel sharedInstance] switchTasks];
347  }
348}
349
350@end
351
352NS_ASSUME_NONNULL_END
353