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TUIKit/TUIChat/UI_Minimalist/Chat/TUIFileViewController_Minimalist.m

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+//
+//  FileViewController.m
+//  TUIKitDemo
+//
+//  Created by kennethmiao on 2018/11/12.
+//  Copyright © 2018 Tencent. All rights reserved.
+//
+
+#import "TUIFileViewController_Minimalist.h"
+#import <QuickLook/QuickLook.h>
+#import <TIMCommon/TIMDefine.h>
+#import <TUICore/TUIGlobalization.h>
+#import <TUICore/TUIThemeManager.h>
+#import <TUICore/UIView+TUILayout.h>
+#import <TUICore/UIView+TUIToast.h>
+#import "ReactiveObjC/ReactiveObjC.h"
+
+@interface TUIFileViewController_Minimalist () <UIDocumentInteractionControllerDelegate>
+@property(nonatomic, strong) UIImageView *image;
+@property(nonatomic, strong) UILabel *name;
+@property(nonatomic, strong) UILabel *progress;
+@property(nonatomic, strong) UIButton *button;
+@property(nonatomic, strong) UIDocumentInteractionController *document;
+@end
+
+@implementation TUIFileViewController_Minimalist
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+    self.view.backgroundColor = [UIColor whiteColor];
+
+    UILabel *titleLabel = [[UILabel alloc] init];
+    titleLabel.text = TIMCommonLocalizableString(File);
+    titleLabel.font = [UIFont boldSystemFontOfSize:17.0];
+    titleLabel.textColor = TIMCommonDynamicColor(@"nav_title_text_color", @"#000000");
+    [titleLabel sizeToFit];
+    self.navigationItem.titleView = titleLabel;
+
+    // left
+    UIImage *defaultImage = [UIImage imageNamed:TUIChatImagePath(@"back")];
+    UIButton *leftButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
+    UIImage *formatImage = [TIMCommonDynamicImage(@"nav_back_img", defaultImage) rtl_imageFlippedForRightToLeftLayoutDirection];
+    [leftButton addTarget:self action:@selector(onBack:) forControlEvents:UIControlEventTouchUpInside];
+    [leftButton setImage:formatImage forState:UIControlStateNormal];
+    UIBarButtonItem *leftItem = [[UIBarButtonItem alloc] initWithCustomView:leftButton];
+    self.navigationItem.leftBarButtonItem = leftItem;
+
+    _image = [[UIImageView alloc] initWithFrame:CGRectMake((self.view.frame.size.width - 80) * 0.5, NavBar_Height + StatusBar_Height + 50, 80, 80)];
+    _image.contentMode = UIViewContentModeScaleAspectFit;
+    _image.image = [UIImage imageNamed:TUIChatImagePath(@"msg_file")];
+    [self.view addSubview:_image];
+
+    _name = [[UILabel alloc] initWithFrame:CGRectMake(0, _image.frame.origin.y + _image.frame.size.height + 20, self.view.frame.size.width, 40)];
+    _name.textColor = [UIColor blackColor];
+    _name.font = [UIFont systemFontOfSize:15];
+    _name.textAlignment = NSTextAlignmentCenter;
+    _name.text = _data.fileName;
+    [self.view addSubview:_name];
+
+    _button = [[UIButton alloc] initWithFrame:CGRectMake(100, _name.frame.origin.y + _name.frame.size.height + 20, self.view.frame.size.width - 200, 40)];
+    [_button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
+    _button.backgroundColor = [UIColor colorWithRed:44 / 255.0 green:145 / 255.0 blue:247 / 255.0 alpha:1.0];
+    _button.layer.cornerRadius = 5;
+    [_button.layer setMasksToBounds:YES];
+    [_button addTarget:self action:@selector(onOpen:) forControlEvents:UIControlEventTouchUpInside];
+
+    [self.view addSubview:_button];
+
+    @weakify(self);
+    [RACObserve(_data, downladProgress) subscribeNext:^(NSNumber *x) {
+      @strongify(self);
+      int progress = [x intValue];
+      if (progress < 100 && progress > 0) {
+          [self.button setTitle:[NSString stringWithFormat:TIMCommonLocalizableString(TUIKitDownloadProgressFormat), progress] forState:UIControlStateNormal];
+      } else {
+          [self.button setTitle:TIMCommonLocalizableString(TUIKitOpenWithOtherApp) forState:UIControlStateNormal];
+      }
+    }];
+    if ([_data isLocalExist]) {
+        [self.button setTitle:TIMCommonLocalizableString(TUIKitOpenWithOtherApp) forState:UIControlStateNormal];
+
+    } else {
+        [self.button setTitle:TIMCommonLocalizableString(Download) forState:UIControlStateNormal];
+    }
+}
+
+- (void)onOpen:(id)sender {
+    BOOL isExist = NO;
+    NSString *path = [_data getFilePath:&isExist];
+    if (isExist) {
+        NSURL *url = [NSURL fileURLWithPath:path];
+        _document = [UIDocumentInteractionController interactionControllerWithURL:url];
+        _document.delegate = self;
+        [_document presentOptionsMenuFromRect:self.view.bounds inView:self.view animated:YES];
+    } else {
+        [_data downloadFile];
+    }
+}
+
+- (void)onBack:(id)sender {
+    if (self.dismissClickCallback) {
+        self.dismissClickCallback();
+    }
+    [self.navigationController popViewControllerAnimated:YES];
+}
+
+- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller {
+    return self.view;
+}
+
+- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller {
+    return self.view.frame;
+}
+
+- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller {
+    return self;
+}
+@end