components/AppBar/examples/AppBarPresentedExample.m

// Copyright 2018-present the Material Components for iOS authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#import <UIKit/UIKit.h>

#import "AppBarSampleViewController.h"
#import "MaterialButtons.h"
#import "MaterialButtons+Theming.h"
#import "MaterialContainerScheme.h"

@interface AppBarPresentedExample : UIViewController

@property(nonatomic, strong) AppBarSampleViewController *demoViewController;
@property(nonatomic, strong) id<MDCContainerScheming> containerScheme;

@end

@implementation AppBarPresentedExample

- (void)viewDidLoad {
  [super viewDidLoad];

  if (!self.containerScheme) {
    self.containerScheme = [[MDCContainerScheme alloc] init];
  }

  self.view.backgroundColor = [UIColor colorWithWhite:(CGFloat)0.95 alpha:1];

  self.demoViewController = [[AppBarSampleViewController alloc] init];
  self.demoViewController.containerScheme = self.containerScheme;

  // Need to update the status bar style after applying the theme.
  [self setNeedsStatusBarAppearanceUpdate];

  CGFloat buttonMargin = 10;
  MDCButton *button = [[MDCButton alloc] init];
  [button setTitle:@"Present Modal App Bar Demo" forState:UIControlStateNormal];
  [button sizeToFit];
  button.center = self.view.center;
  button.frame = CGRectMake(button.frame.origin.x, button.center.y - 48 * 2 - buttonMargin,
                            button.bounds.size.width, MAX(button.bounds.size.height, 48));
  [button addTarget:self
                action:@selector(presentDemo)
      forControlEvents:UIControlEventTouchUpInside];
  [self.view addSubview:button];
  [button applyContainedThemeWithScheme:self.containerScheme];

  if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
    MDCButton *popoverButton = [[MDCButton alloc] init];
    [popoverButton setTitle:@"Present Popover App Bar Demo" forState:UIControlStateNormal];
    [popoverButton sizeToFit];
    popoverButton.center = self.view.center;
    popoverButton.frame =
        CGRectMake(popoverButton.frame.origin.x, popoverButton.center.y - 48,
                   popoverButton.bounds.size.width, MAX(popoverButton.bounds.size.height, 48));
    [popoverButton addTarget:self
                      action:@selector(presentDemoPopover)
            forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:popoverButton];

    [popoverButton applyContainedThemeWithScheme:self.containerScheme];
  }
}

- (void)presentDemo {
  self.demoViewController.modalPresentationStyle = UIModalPresentationPageSheet;
  [self presentViewController:self.demoViewController animated:YES completion:nil];
}

- (void)presentDemoPopover {
  CGRect rect = CGRectMake(self.view.bounds.size.width / 2, self.topLayoutGuide.length, 1, 1);
  rect = CGRectMake(self.view.bounds.size.width / 2, self.view.safeAreaInsets.top, 1, 1);

  self.demoViewController.modalPresentationStyle = UIModalPresentationPopover;
  self.demoViewController.popoverPresentationController.sourceView = self.view;
  self.demoViewController.popoverPresentationController.sourceRect = rect;
  UIPopoverController *popoverController =
      [[UIPopoverController alloc] initWithContentViewController:self.demoViewController];
  [popoverController presentPopoverFromRect:rect
                                     inView:self.view
                   permittedArrowDirections:UIPopoverArrowDirectionAny
                                   animated:YES];
}

@end

@implementation AppBarPresentedExample (CatalogByConvention)

+ (NSDictionary *)catalogMetadata {
  return @{
    @"breadcrumbs" : @[ @"App Bar", @"Presented" ],
    @"primaryDemo" : @NO,
    @"presentable" : @YES,
  };
}

- (BOOL)catalogShouldHideNavigation {
  return YES;
}

@end