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Pods/CocoaDebug/Sources/Sandbox/_FilePreviewController.m

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+//
+//  Example
+//  man
+//
+//  Created by man 11/11/2018.
+//  Copyright © 2020 man. All rights reserved.
+//
+
+#import "_FilePreviewController.h"
+#import "_FileInfo.h"
+#import <QuickLook/QuickLook.h>
+#import <WebKit/WebKit.h>
+#import "_Sandboxer-Header.h"
+#import "_Sandboxer.h"
+
+@interface _FilePreviewController () <QLPreviewControllerDataSource, WKNavigationDelegate, WKUIDelegate, UIDocumentInteractionControllerDelegate>
+
+@property (nonatomic, strong) WKWebView *wkWebView;
+
+@property (nonatomic, strong) UITextView *textView;
+
+@property (nonatomic, strong) UIActivityIndicatorView *activityIndicatorView;
+
+@property (nonatomic, strong) UIDocumentInteractionController *documentInteractionController;
+
+@end
+
+@implementation _FilePreviewController
+
+#pragma mark - View Lifecycle
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+    
+    self.title = self.fileInfo.displayName.stringByDeletingPathExtension;
+    self.view.backgroundColor = [UIColor whiteColor];
+    
+    [self init_documentInteractionController];
+    [self initDatas];
+    [self setupViews];
+    [self loadFile];
+}
+
+- (void)viewDidLayoutSubviews {
+    [super viewDidLayoutSubviews];
+
+    if (self.wkWebView) {
+        self.wkWebView.frame = self.view.bounds;
+    }
+    
+//    if (self.webView) {
+//        self.webView.frame = self.view.bounds;
+//    }
+    
+    if (self.textView) {
+        self.textView.frame = self.view.bounds;
+    }
+    
+    self.activityIndicatorView.center = self.view.center;
+}
+
+#pragma mark - Private Methods
+
+- (void)init_documentInteractionController {
+    if (!self.documentInteractionController) {
+        self.documentInteractionController = [UIDocumentInteractionController interactionControllerWithURL:self.fileInfo.URL];
+        self.documentInteractionController.delegate = self;
+        self.documentInteractionController.name = self.fileInfo.displayName;
+    }
+}
+
+- (void)initDatas {
+    
+}
+
+- (void)setupViews {
+    
+    if ([_Sandboxer shared].isShareable) {
+        UIBarButtonItem *shareItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(sharingAction)];
+        self.navigationItem.rightBarButtonItem = shareItem;
+    }
+    
+    if (self.fileInfo.isCanPreviewInWebView) {
+        self.wkWebView = [[WKWebView alloc] initWithFrame:self.view.bounds];
+        self.wkWebView.backgroundColor = [UIColor whiteColor];
+        self.wkWebView.navigationDelegate = self;
+        [self.view addSubview:self.wkWebView];
+    } else {
+        switch (self.fileInfo.type) {
+            case _FileTypePList: {
+                self.textView = [[UITextView alloc] initWithFrame:self.view.bounds];
+                self.textView.editable = NO;
+                self.textView.alwaysBounceVertical = YES;
+                [self.view addSubview:self.textView];
+                break;
+            }
+            default:
+                break;
+        }
+    }
+    
+    [self.view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showOrHideNavigationBar)]];
+    
+    self.activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
+    [self.view addSubview:self.activityIndicatorView];
+}
+
+- (void)loadFile {
+    if (self.fileInfo.isCanPreviewInWebView) {
+        if (@available(iOS 9.0, *)) {
+            [self.wkWebView loadFileURL:self.fileInfo.URL allowingReadAccessToURL:self.fileInfo.URL];
+        } else {
+            // Fallback on earlier versions
+        }
+    } else {
+        switch (self.fileInfo.type) {
+            case _FileTypePList: {
+                [self.activityIndicatorView startAnimating];
+                dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+                    NSData *data = [NSData dataWithContentsOfFile:self.fileInfo.URL.path];
+                    if (data) {
+                        NSString *content = [[NSPropertyListSerialization propertyListWithData:data options:kNilOptions format:nil error:nil] description];
+                        dispatch_async(dispatch_get_main_queue(), ^{
+                            [self.activityIndicatorView stopAnimating];
+                            self.textView.text = content;
+                        });
+                    } else {
+                        dispatch_async(dispatch_get_main_queue(), ^{
+                            [self.activityIndicatorView stopAnimating];
+                            [self showAlert];
+                        });
+                    }
+                });
+                break;
+            }
+            default: {
+                [self showAlert];
+            }
+                break;
+        }
+    }
+}
+
+#pragma mark - alert
+- (void)showAlert {
+    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Not supported" message:nil preferredStyle:UIAlertControllerStyleAlert];
+    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleCancel handler:nil];
+    [alert addAction:cancelAction];
+    
+    alert.popoverPresentationController.permittedArrowDirections = 0;
+    alert.popoverPresentationController.sourceView = self.view;
+    alert.popoverPresentationController.sourceRect = CGRectMake(self.view.bounds.size.width / 2.0, self.view.bounds.size.height / 2.0, 0, 0);
+    
+    [self presentViewController:alert animated:YES completion:nil];
+}
+
+#pragma mark - Action
+
+- (void)showOrHideNavigationBar {
+    [self.navigationController setNavigationBarHidden:!self.navigationController.isNavigationBarHidden animated:YES];
+}
+
+- (void)sharingAction {
+    if (![_Sandboxer shared].isShareable) { return; }
+    
+    [self init_documentInteractionController];
+
+    if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
+        [self.documentInteractionController presentOptionsMenuFromBarButtonItem:self.navigationItem.rightBarButtonItem animated:YES];
+    } else {
+        [self.documentInteractionController presentOptionsMenuFromRect:CGRectZero inView:self.view animated:YES];
+    }
+}
+
+#pragma mark - UIDocumentInteractionControllerDelegate
+
+- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller {
+    return self.navigationController;
+}
+
+- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller {
+    return self.view.bounds;
+}
+
+- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller {
+    return self.view;
+}
+
+#pragma mark - QLPreviewControllerDataSource
+
+- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)controller {
+    return 1;
+}
+
+- (id<QLPreviewItem>)previewController:(QLPreviewController *)controller previewItemAtIndex:(NSInteger)index {
+    return self.fileInfo.URL;
+}
+
+#pragma mark - WKNavigationDelegate
+
+- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation {
+    ////NSLog(@"%@", NSStringFromSelector(_cmd));
+    [self.activityIndicatorView startAnimating];
+}
+
+- (void)webView:(WKWebView *)webView didCommitNavigation:(WKNavigation *)navigation {
+    ////NSLog(@"%@", NSStringFromSelector(_cmd));
+    [self.activityIndicatorView stopAnimating];
+}
+
+- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
+    ////NSLog(@"%@", NSStringFromSelector(_cmd));
+    [self.activityIndicatorView stopAnimating];
+}
+
+- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error {
+    ////NSLog(@"%@, error = %@", NSStringFromSelector(_cmd), error);
+    [self.activityIndicatorView stopAnimating];
+}
+
+#pragma mark - WKUIDelegate
+
+
+
+@end