131 lines
4.8 KiB
Plaintext
131 lines
4.8 KiB
Plaintext
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "tools/skottie_ios_app/SkiaContext.h"
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#include "tools/skottie_ios_app/SkottieViewController.h"
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#include "include/core/SkTypes.h"
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#import <UIKit/UIKit.h>
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#include <cstdlib>
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@interface AppViewController : UIViewController
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@property (strong) SkiaContext* skiaContext;
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@property (strong) UIStackView* stackView;
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@end
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@implementation AppViewController
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- (void)loadView {
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[self setView:[[UIView alloc] init]];
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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if (![self skiaContext]) {
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#if (SK_SUPPORT_GPU && defined(SK_METAL) && !defined(SK_BUILD_FOR_GOOGLE3))
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[self setSkiaContext:MakeSkiaMetalContext()];
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#elif (SK_SUPPORT_GPU && defined(SK_GL) && !defined(SK_BUILD_FOR_GOOGLE3))
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[self setSkiaContext:MakeSkiaGLContext()];
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#else
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[self setSkiaContext:MakeSkiaUIContext()];
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#endif
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if (![self skiaContext]) {
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NSLog(@"abort: failed to make skia context.");
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std::abort();
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}
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}
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CGFloat screenWidth = [[UIScreen mainScreen] bounds].size.width;
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UIStackView* stack = [[UIStackView alloc] init];
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[stack setAxis:UILayoutConstraintAxisVertical];
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[stack setDistribution:UIStackViewDistributionEqualSpacing];
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NSBundle* mainBundle = [NSBundle mainBundle];
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NSArray<NSString*>* paths = [mainBundle pathsForResourcesOfType:@"json"
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inDirectory:@"data"];
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constexpr CGFloat kSpacing = 2;
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CGFloat totalHeight = kSpacing;
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for (NSUInteger i = 0; i < [paths count]; ++i) {
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NSString* path = [paths objectAtIndex:i];
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NSData* content = [NSData dataWithContentsOfFile:path];
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if (!content) {
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NSLog(@"'%@' not found", path);
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continue;
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}
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SkottieViewController* controller = [[SkottieViewController alloc] init];
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if (![controller loadAnimation:content]) {
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continue;
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}
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CGSize animSize = [controller size];
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CGFloat height = animSize.width ? (screenWidth * animSize.height / animSize.width) : 0;
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CGRect frame = {{0, 0}, {screenWidth, height}};
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UIView* skiaView = [[self skiaContext] makeViewWithController:controller withFrame:frame];
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[[[skiaView heightAnchor] constraintEqualToConstant:height] setActive:true];
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[[[skiaView widthAnchor] constraintEqualToConstant:screenWidth] setActive:true];
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[skiaView setNeedsDisplay];
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[stack addArrangedSubview:skiaView];
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totalHeight += height + kSpacing;
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}
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[stack setFrame:{{0, 0}, {screenWidth, totalHeight}}];
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[stack setNeedsDisplay];
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CGFloat statusBarHeight = [[UIApplication sharedApplication] statusBarFrame].size.height;
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CGSize mainScreenSize = [[UIScreen mainScreen] bounds].size;
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CGRect scrollViewBounds = {{0, statusBarHeight},
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{mainScreenSize.width, mainScreenSize.height - statusBarHeight}};
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UIScrollView* scrollView = [[UIScrollView alloc] initWithFrame:scrollViewBounds];
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[scrollView setContentSize:[stack frame].size];
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[scrollView addSubview:stack];
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[scrollView setBackgroundColor:[UIColor blackColor]];
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[scrollView setNeedsDisplay];
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[self setStackView:stack];
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UIView* mainView = [self view];
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[mainView setBounds:{{0, 0}, mainScreenSize}];
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[mainView setBackgroundColor:[UIColor whiteColor]];
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[mainView addSubview:scrollView];
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[mainView setNeedsDisplay];
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UITapGestureRecognizer* tapGestureRecognizer = [[UITapGestureRecognizer alloc] init];
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[tapGestureRecognizer addTarget:self action:@selector(handleTap:)];
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[mainView addGestureRecognizer:tapGestureRecognizer];
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}
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- (void)handleTap:(UIGestureRecognizer*)sender {
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if ([sender state] != UIGestureRecognizerStateEnded) {
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return;
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}
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NSArray<UIView*>* subviews = [[self stackView] subviews];
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for (NSUInteger i = 0; i < [subviews count]; ++i) {
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UIView* uIView = [subviews objectAtIndex:i];
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if (SkiaViewController* controller = [[self skiaContext] getViewController:uIView]) {
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[controller togglePaused];
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[uIView setNeedsDisplay];
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}
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}
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}
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@end
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@interface AppDelegate : UIResponder <UIApplicationDelegate>
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@property (strong, nonatomic) UIWindow* window;
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@end
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@implementation AppDelegate
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- (BOOL)application:(UIApplication*)app didFinishLaunchingWithOptions:(NSDictionary*)ops {
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[self setWindow:[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]];
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[[self window] setRootViewController:[[AppViewController alloc] init]];
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[[self window] makeKeyAndVisible];
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return YES;
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}
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@end
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int main(int argc, char* argv[]) {
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@autoreleasepool {
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return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
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}
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}
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