xref: /expo/ios/Client/EXRootViewController.m (revision bd4f6aa5) 
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
95- (void)toggleMenuWithCompletion:(void (^ _Nullable)(void))completion
96{
97  [self setIsMenuVisible:!_isMenuVisible completion:completion];
98}
99
100- (void)setIsMenuVisible:(BOOL)isMenuVisible completion:(void (^ _Nullable)(void))completion
101{
102  if (!_menuViewController) {
103    _menuViewController = [[EXMenuViewController alloc] init];
104  }
105  if (isMenuVisible != _isMenuVisible) {
106    if (!_isAnimatingMenu) {
107      _isMenuVisible = isMenuVisible;
108      [self _animateMenuToVisible:_isMenuVisible completion:completion];
109    }
110  } else {
111    completion();
112  }
113}
114
115- (void)showDiagnostics
116{
117  __weak typeof(self) weakSelf = self;
118  [self setIsMenuVisible:NO completion:^{
119    __strong typeof(weakSelf) strongSelf = weakSelf;
120    if (strongSelf) {
121      EXHomeDiagnosticsViewController *vcDiagnostics = [[EXHomeDiagnosticsViewController alloc] init];
122      [strongSelf presentViewController:vcDiagnostics animated:NO completion:nil];
123    }
124  }];
125}
126
127- (void)showQRReader
128{
129  [self moveHomeToVisible];
130  [[self _getHomeAppManager] showQRReader];
131}
132
133- (void)moveHomeToVisible
134{
135  __weak typeof(self) weakSelf = self;
136  [self setIsMenuVisible:NO completion:^{
137    __strong typeof(weakSelf) strongSelf = weakSelf;
138    if (strongSelf) {
139      [strongSelf moveAppToVisible:[EXKernel sharedInstance].appRegistry.homeAppRecord];
140
141      if (strongSelf.isMenuVisible) {
142        [strongSelf setIsMenuVisible:NO completion:nil];
143      }
144    }
145  }];
146}
147
148- (void)refreshVisibleApp
149{
150  // this is different from Util.reload()
151  // because it can work even on an errored app record (e.g. with no manifest, or with no running bridge).
152  [self setIsMenuVisible:NO completion:nil];
153  EXKernelAppRecord *visibleApp = [EXKernel sharedInstance].visibleApp;
154  [[EXKernel sharedInstance] logAnalyticsEvent:@"RELOAD_EXPERIENCE" forAppRecord:visibleApp];
155  NSURL *urlToRefresh = visibleApp.appLoader.manifestUrl;
156
157  // Unregister visible app record so all modules get destroyed.
158  [[[EXKernel sharedInstance] appRegistry] unregisterAppWithRecord:visibleApp];
159
160  // Create new app record.
161  [[EXKernel sharedInstance] createNewAppWithUrl:urlToRefresh initialProps:nil];
162}
163
164- (void)addHistoryItemWithUrl:(NSURL *)manifestUrl manifest:(NSDictionary *)manifest
165{
166  [[self _getHomeAppManager] addHistoryItemWithUrl:manifestUrl manifest:manifest];
167}
168
169- (void)getHistoryUrlForExperienceId:(NSString *)experienceId completion:(void (^)(NSString *))completion
170{
171  return [[self _getHomeAppManager] getHistoryUrlForExperienceId:experienceId completion:completion];
172}
173
174- (void)setIsNuxFinished:(BOOL)isFinished
175{
176  [[NSUserDefaults standardUserDefaults] setBool:isFinished forKey:kEXHomeIsNuxFinishedDefaultsKey];
177  [[NSUserDefaults standardUserDefaults] synchronize];
178}
179
180- (BOOL)isNuxFinished
181{
182  return [[NSUserDefaults standardUserDefaults] boolForKey:kEXHomeIsNuxFinishedDefaultsKey];
183}
184
185- (void)appDidFinishLoadingSuccessfully:(EXKernelAppRecord *)appRecord
186{
187  // show nux if needed
188  if (!self.isNuxFinished
189      && appRecord == [EXKernel sharedInstance].visibleApp
190      && appRecord != [EXKernel sharedInstance].appRegistry.homeAppRecord
191      && !self.isMenuVisible) {
192    [self setIsMenuVisible:YES completion:nil];
193  }
194
195  // check button availability when any new app loads
196  [self _updateMenuButtonBehavior];
197}
198
199#pragma mark - internal
200
201- (void)_foregroundAppRecord:(EXKernelAppRecord *)appRecord
202{
203  if (_isAnimatingAppTransition) {
204    return;
205  }
206  EXAppViewController *viewControllerToShow = appRecord.viewController;
207  EXAppViewController *viewControllerToHide;
208  if (viewControllerToShow != self.contentViewController) {
209    _isAnimatingAppTransition = YES;
210    if (self.contentViewController) {
211      viewControllerToHide = (EXAppViewController *)self.contentViewController;
212    }
213    if (viewControllerToShow) {
214      [viewControllerToShow willMoveToParentViewController:self];
215      [self.view addSubview:viewControllerToShow.view];
216      [viewControllerToShow foregroundControllers];
217    }
218
219    __weak typeof(self) weakSelf = self;
220    void (^transitionFinished)(void) = ^{
221      __strong typeof(weakSelf) strongSelf = weakSelf;
222      if (strongSelf) {
223        if (viewControllerToHide) {
224          // backgrounds and then dismisses all modals that are presented by the app
225          [viewControllerToHide backgroundControllers];
226          [viewControllerToHide dismissViewControllerAnimated:NO completion:nil];
227          [viewControllerToHide willMoveToParentViewController:nil];
228          [viewControllerToHide.view removeFromSuperview];
229          [viewControllerToHide didMoveToParentViewController:nil];
230        }
231        if (viewControllerToShow) {
232          [viewControllerToShow didMoveToParentViewController:strongSelf];
233          strongSelf.contentViewController = viewControllerToShow;
234        }
235        [strongSelf.view setNeedsLayout];
236        strongSelf.isAnimatingAppTransition = NO;
237        if (strongSelf.delegate) {
238          [strongSelf.delegate viewController:strongSelf didNavigateAppToVisible:appRecord];
239        }
240      }
241    };
242
243    BOOL animated = (viewControllerToHide && viewControllerToShow);
244    if (animated) {
245      if (viewControllerToHide.contentView) {
246        viewControllerToHide.contentView.transform = CGAffineTransformIdentity;
247        viewControllerToHide.contentView.alpha = 1.0f;
248      }
249      if (viewControllerToShow.contentView) {
250        viewControllerToShow.contentView.transform = CGAffineTransformMakeScale(1.1f, 1.1f);
251        viewControllerToShow.contentView.alpha = 0;
252      }
253      [UIView animateWithDuration:0.3f animations:^{
254        if (viewControllerToHide.contentView) {
255          viewControllerToHide.contentView.transform = CGAffineTransformMakeScale(0.95f, 0.95f);
256          viewControllerToHide.contentView.alpha = 0.5f;
257        }
258        if (viewControllerToShow.contentView) {
259          viewControllerToShow.contentView.transform = CGAffineTransformIdentity;
260          viewControllerToShow.contentView.alpha = 1.0f;
261        }
262      } completion:^(BOOL finished) {
263        transitionFinished();
264      }];
265    } else {
266      transitionFinished();
267    }
268  }
269}
270
271- (void)_animateMenuToVisible:(BOOL)visible completion:(void (^ _Nullable)(void))completion
272{
273  _isAnimatingMenu = YES;
274  __weak typeof(self) weakSelf = self;
275  if (visible) {
276    [_menuViewController willMoveToParentViewController:self];
277
278    if (_menuWindow == nil) {
279      _menuWindow = [[EXMenuWindow alloc] init];
280    }
281
282    [_menuWindow setFrame:self.view.frame];
283    [_menuWindow addSubview:_menuViewController.view];
284    [_menuWindow makeKeyAndVisible];
285
286    _menuViewController.view.alpha = 0.0f;
287    _menuViewController.view.transform = CGAffineTransformMakeScale(1.1f, 1.1f);
288    [UIView animateWithDuration:0.1f animations:^{
289      self.menuViewController.view.alpha = 1.0f;
290      self.menuViewController.view.transform = CGAffineTransformIdentity;
291    } completion:^(BOOL finished) {
292      __strong typeof(weakSelf) strongSelf = weakSelf;
293      if (strongSelf) {
294        strongSelf.isAnimatingMenu = NO;
295        [strongSelf.menuViewController didMoveToParentViewController:self];
296        if (completion) {
297          completion();
298        }
299      }
300    }];
301  } else {
302    _menuViewController.view.alpha = 1.0f;
303    [UIView animateWithDuration:0.1f animations:^{
304      self.menuViewController.view.alpha = 0.0f;
305    } completion:^(BOOL finished) {
306      __strong typeof(weakSelf) strongSelf = weakSelf;
307      if (strongSelf) {
308        strongSelf.isAnimatingMenu = NO;
309        [strongSelf.menuViewController willMoveToParentViewController:nil];
310        [strongSelf.menuViewController.view removeFromSuperview];
311        [strongSelf.menuViewController didMoveToParentViewController:nil];
312        strongSelf.menuWindow = nil;
313        if (completion) {
314          completion();
315        }
316      }
317    }];
318  }
319}
320
321- (EXHomeAppManager *)_getHomeAppManager
322{
323  return (EXHomeAppManager *)[EXKernel sharedInstance].appRegistry.homeAppRecord.appManager;
324}
325
326- (void)_maybeResetNuxState
327{
328  // used by appetize: optionally disable nux
329  BOOL disableNuxDefaultsValue = [[NSUserDefaults standardUserDefaults] boolForKey:kEXHomeDisableNuxDefaultsKey];
330  if (disableNuxDefaultsValue) {
331    [self setIsNuxFinished:YES];
332    [[NSUserDefaults standardUserDefaults] removeObjectForKey:kEXHomeDisableNuxDefaultsKey];
333  }
334}
335
336- (void)_updateMenuButtonBehavior
337{
338  BOOL shouldShowButton = [[EXKernelDevKeyCommands sharedInstance] isLegacyMenuButtonAvailable];
339  dispatch_async(dispatch_get_main_queue(), ^{
340    self.btnMenu.hidden = !shouldShowButton;
341  });
342}
343
344- (void)_onMenuGestureRecognized:(EXMenuGestureRecognizer *)sender
345{
346  if (sender.state == UIGestureRecognizerStateEnded) {
347    [[EXKernel sharedInstance] switchTasks];
348  }
349}
350
351@end
352
353NS_ASSUME_NONNULL_END
354