mirror of
https://github.com/zydeco/minivmac4ios.git
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458 lines
21 KiB
Objective-C
458 lines
21 KiB
Objective-C
//
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// InsertDiskViewController.m
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// Mini vMac
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//
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// Created by Jesús A. Álvarez on 07/05/2016.
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// Copyright © 2016 namedfork. All rights reserved.
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//
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#import "InsertDiskViewController.h"
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#import "AppDelegate.h"
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#import "UIImage+DiskImageIcon.h"
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@interface InsertDiskViewController () <UITextFieldDelegate>
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@end
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@interface FileTableViewCell : UITableViewCell
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@property (nonatomic, weak) InsertDiskViewController *controller;
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@property (nonatomic, strong) NSString *filePath;
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- (void)share:(id)sender;
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- (void)rename:(id)sender;
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- (void)delete:(id)sender;
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@end
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@implementation InsertDiskViewController
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{
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NSString *basePath;
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NSArray<NSString*> *diskImages, *otherFiles;
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UIAlertController *createDiskImageController;
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__block __weak UITextField *sizeTextField;
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__block __weak UITextField *nameTextField;
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}
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+ (void)initialize {
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UIMenuController *menuController = [UIMenuController sharedMenuController];
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menuController.menuItems = @[[[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"Rename", @"Rename Context Menu Item") action:@selector(rename:)],
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[[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"Share", @"Share Context Menu Item") action:@selector(share:)]];
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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basePath = [AppDelegate sharedInstance].documentsPath;
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[self loadDirectoryContents];
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self.navigationItem.rightBarButtonItem = self.editButtonItem;
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}
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- (void)viewDidAppear:(BOOL)animated {
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[super viewDidAppear:animated];
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NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
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[nc addObserver:self selector:@selector(reloadData:) name:MNVMDidInsertDiskNotification object:nil];
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[nc addObserver:self selector:@selector(reloadData:) name:MNVMDidEjectDiskNotification object:nil];
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}
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- (void)viewDidDisappear:(BOOL)animated {
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[super viewDidDisappear:animated];
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NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
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[nc removeObserver:self name:MNVMDidInsertDiskNotification object:nil];
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[nc removeObserver:self name:MNVMDidEjectDiskNotification object:nil];
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}
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- (void)loadDirectoryContents {
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NSArray *allFiles = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:basePath error:NULL];
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diskImages = [allFiles pathsMatchingExtensions:[AppDelegate sharedInstance].diskImageExtensions];
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otherFiles = [allFiles filteredArrayUsingPredicate:[NSPredicate predicateWithBlock:^BOOL(NSString* _Nonnull name, NSDictionary<NSString *,id> * _Nullable bindings) {
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BOOL isDiskImage = [diskImages containsObject:name];
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BOOL isDirectory;
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BOOL isHidden = [name hasPrefix:@"."];
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[[NSFileManager defaultManager] fileExistsAtPath:[basePath stringByAppendingPathComponent:name] isDirectory:&isDirectory];
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return !(isDirectory || isDiskImage || isHidden);
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}]];
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}
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- (void)reloadData:(id)sender {
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[self loadDirectoryContents];
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[self.tableView reloadData];
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}
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- (void)showSettings:(id)sender {
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[[AppDelegate sharedInstance] showSettings:sender];
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}
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- (void)dismiss:(id)sender {
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[self dismissViewControllerAnimated:YES completion:nil];
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}
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#pragma mark - Table view data source
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- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
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return self.editing ? 2 : 1;
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}
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
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switch (section) {
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case 0: return diskImages.count + (self.editing ? 1 : 0);
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case 1: return otherFiles.count;
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default: return 0;
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}
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}
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- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
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return section == 0 ? NSLocalizedString(@"Disk Images", nil) : NSLocalizedString(@"Other Files", nil);
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}
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- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
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return self.editing ? UITableViewAutomaticDimension : 0.0;
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}
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- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
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[super setEditing:editing animated:animated];
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[self.tableView beginUpdates];
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[self loadDirectoryContents];
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self.tableView.tableHeaderView = nil;
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[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationFade];
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if (editing) {
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[self.tableView insertSections:[NSIndexSet indexSetWithIndex:1] withRowAnimation:UITableViewRowAnimationFade];
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} else {
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[self.tableView deleteSections:[NSIndexSet indexSetWithIndex:1] withRowAnimation:UITableViewRowAnimationFade];
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}
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[self.tableView endUpdates];
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}
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- (NSString *)fileAtIndexPath:(NSIndexPath *)indexPath {
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NSArray<NSString*> *files = indexPath.section == 0 ? diskImages : otherFiles;
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if (indexPath.row < files.count) {
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NSString *fileName = files[indexPath.row];
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return [basePath stringByAppendingPathComponent:fileName];
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} else {
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return nil;
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}
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}
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- (NSIndexPath *)indexPathForFile:(NSString *)filePath {
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NSString *fileName = filePath.lastPathComponent;
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if ([diskImages containsObject:fileName]) {
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return [NSIndexPath indexPathForRow:[diskImages indexOfObject:fileName] inSection:0];
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} else if ([otherFiles containsObject:fileName]) {
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return [NSIndexPath indexPathForRow:[otherFiles indexOfObject:fileName] inSection:1];
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} else {
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return nil;
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}
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
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FileTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
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NSString *filePath = [self fileAtIndexPath:indexPath];
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if (filePath) {
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cell.filePath = filePath;
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if ([[AppDelegate sharedInstance] isDiskInserted:filePath]) {
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cell.userInteractionEnabled = NO;
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cell.textLabel.enabled = NO;
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cell.imageView.alpha = 0.5;
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}
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} else {
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cell.textLabel.text = NSLocalizedString(@"Create Disk Image…", nil);
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cell.detailTextLabel.text = nil;
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}
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cell.controller = self;
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return cell;
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}
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- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
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if (self.editing == NO) {
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return UITableViewCellEditingStyleNone;
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} else if (indexPath.section == 0) {
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if (indexPath.row == diskImages.count) {
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return UITableViewCellEditingStyleInsert;
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}
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NSString *filePath = [self fileAtIndexPath:indexPath];
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BOOL isInserted = [[AppDelegate sharedInstance] isDiskInserted:filePath];
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return isInserted ? UITableViewCellEditingStyleNone : UITableViewCellEditingStyleDelete;
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} else {
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return UITableViewCellEditingStyleDelete;
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}
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}
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- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
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if (editingStyle == UITableViewCellEditingStyleDelete) {
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[self askDeleteFile:[self fileAtIndexPath:indexPath]];
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} else if (editingStyle == UITableViewCellEditingStyleInsert) {
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[self createDiskImage];
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}
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}
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- (BOOL)tableView:(UITableView *)tableView shouldShowMenuForRowAtIndexPath:(nonnull NSIndexPath *)indexPath {
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return [self fileAtIndexPath:indexPath] != nil;
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}
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- (BOOL)tableView:(UITableView *)tableView canPerformAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender {
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return (action == @selector(share:) || action == @selector(rename:) || action == @selector(delete:));
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}
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- (void)tableView:(UITableView *)tableView performAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender {
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// menu will not be shown if this method doesn't exist
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}
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- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
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NSString *filePath = [self fileAtIndexPath:indexPath];
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if (filePath && ![[AppDelegate sharedInstance] isDiskInserted:filePath]) {
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[self dismissViewControllerAnimated:YES completion:^{
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[[AppDelegate sharedInstance] insertDisk:filePath];
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}];
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}
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}
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#pragma mark - File Actions
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- (void)askDeleteFile:(NSString*)filePath {
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NSString *fileName = filePath.lastPathComponent;
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NSString *message = [NSString stringWithFormat:NSLocalizedString(@"Are you sure you want to delete %@? This operation cannot be undone.", nil), fileName];
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UIAlertController *alertController = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Delete File", nil) message:message preferredStyle:UIAlertControllerStyleAlert];
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[alertController addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"Delete", nil) style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
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NSError *error = nil;
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if ([[NSFileManager defaultManager] removeItemAtPath:filePath error:&error]) {
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NSIndexPath *indexPath = [self indexPathForFile:filePath];
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[self loadDirectoryContents];
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[self.tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
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} else {
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[[AppDelegate sharedInstance] showAlertWithTitle:NSLocalizedString(@"Could not delete file", nil) message:error.localizedDescription];
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}
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}]];
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[alertController addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", nil) style:UIAlertActionStyleCancel handler:nil]];
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[self presentViewController:alertController animated:YES completion:nil];
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}
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- (void)askRenameFile:(NSString*)filePath {
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NSString *fileName = filePath.lastPathComponent;
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UIAlertController *alertController = [UIAlertController alertControllerWithTitle:fileName message:NSLocalizedString(@"Enter new name", nil) preferredStyle:UIAlertControllerStyleAlert];
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[alertController addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
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nameTextField = textField;
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textField.delegate = self;
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textField.placeholder = fileName;
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textField.text = fileName;
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}];
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[alertController addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"Rename", nil) style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
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NSError *error = nil;
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NSString *newName = alertController.textFields.firstObject.text;
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NSString *newPath = [filePath.stringByDeletingLastPathComponent stringByAppendingPathComponent:newName];
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if ([[NSFileManager defaultManager] moveItemAtPath:filePath toPath:newPath error:&error]) {
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NSIndexPath *oldIndexPath = [self indexPathForFile:filePath];
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[self loadDirectoryContents];
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NSIndexPath *newIndexPath = [self indexPathForFile:newPath];
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if (newIndexPath == nil) {
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[self.tableView deleteRowsAtIndexPaths:@[oldIndexPath] withRowAnimation:UITableViewRowAnimationFade];
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} else {
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[self.tableView moveRowAtIndexPath:oldIndexPath toIndexPath:newIndexPath];
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[self.tableView reloadRowsAtIndexPaths:@[newIndexPath] withRowAnimation:UITableViewRowAnimationNone];
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}
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} else {
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[[AppDelegate sharedInstance] showAlertWithTitle:NSLocalizedString(@"Could not rename file", nil) message:error.localizedDescription];
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}
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}]];
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[alertController addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", nil) style:UIAlertActionStyleCancel handler:nil]];
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[self presentViewController:alertController animated:YES completion:nil];
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}
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#pragma mark - Disk Image Creation
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- (void)createDiskImage {
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UIAlertController *alertController = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Create Disk Image", nil) message:nil preferredStyle:UIAlertControllerStyleAlert];
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[alertController addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
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textField.placeholder = NSLocalizedString(@"name", nil);
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[textField addTarget:self action:@selector(validateCreateDiskImageInput:) forControlEvents:UIControlEventAllEditingEvents];
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}];
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[alertController addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
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textField.placeholder = NSLocalizedString(@"size", nil);
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textField.keyboardType = UIKeyboardTypeDecimalPad;
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UILabel *unitLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 60.0, 32.0)];
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textField.rightViewMode = UITextFieldViewModeAlways;
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textField.rightView = unitLabel;
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unitLabel.textAlignment = NSTextAlignmentRight;
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UISegmentedControl *unitsControl = [[UISegmentedControl alloc] initWithFrame:CGRectMake(0, 0, 80.0, 16.0)];
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NSArray *units = @[NSLocalizedString(@"KB", nil), NSLocalizedString(@"MB", nil)];
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[units enumerateObjectsUsingBlock:^(NSString *title, NSUInteger idx, BOOL * _Nonnull stop) {
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[unitsControl insertSegmentWithTitle:title atIndex:idx animated:NO];
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}];
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unitsControl.selectedSegmentIndex = 0;
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textField.rightView = unitsControl;
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sizeTextField = textField;
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textField.delegate = self;
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[textField addTarget:self action:@selector(validateCreateDiskImageInput:) forControlEvents:UIControlEventAllEditingEvents];
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[unitsControl addTarget:self action:@selector(validateCreateDiskImageInput:) forControlEvents:UIControlEventValueChanged];
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unitLabel.text = [unitsControl titleForSegmentAtIndex:unitsControl.selectedSegmentIndex];
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}];
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[alertController addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", nil) style:UIAlertActionStyleCancel handler:nil]];
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UIAlertAction *createAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Create", nil) style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
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NSString *name = [self _newDiskImageName];
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off_t size = [self _newDiskImageSize];
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createDiskImageController = nil;
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[self createDiskImageWithName:name size:size];
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}];
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[alertController addAction:createAction];
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createAction.enabled = NO;
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[self presentViewController:alertController animated:YES completion:nil];
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createDiskImageController = alertController;
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}
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- (BOOL)validateCreateDiskImageInput:(id)sender {
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BOOL valid = NO;
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if (self.presentedViewController == createDiskImageController) {
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NSString *name = [self _newDiskImageName];
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BOOL nameIsValid = (name.length > 0) && ![name hasPrefix:@"."] && ![name containsString:@"/"] && ![name containsString:@"*"];
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off_t size = [self _newDiskImageSize];
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BOOL sizeIsValid = (size >= 400 * 1024) && (size <= 2LL * 1024 * 1024 * 1024);
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valid = nameIsValid && sizeIsValid;
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UIAlertAction *createAction = createDiskImageController.actions[1];
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createAction.enabled = valid;
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}
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return valid;
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}
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- (NSString*)_newDiskImageName {
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return createDiskImageController ? createDiskImageController.textFields[0].text : nil;
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}
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- (off_t)_newDiskImageSize {
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if (createDiskImageController == nil) {
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return 0;
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}
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UISegmentedControl *unitsControl = (UISegmentedControl*)createDiskImageController.textFields[1].rightView;
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off_t unitsMultiplier = (unitsControl.selectedSegmentIndex == 0) ? 1024 : 1024 * 1024;
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off_t size = createDiskImageController.textFields[1].text.floatValue * unitsMultiplier;
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return size;
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}
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- (void)createDiskImageWithName:(NSString*)name size:(off_t)size {
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NSString *imageFileName = [[AppDelegate sharedInstance].diskImageExtensions containsObject:name.pathExtension.lowercaseString] ? name : [name stringByAppendingPathExtension:@"img"];
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NSString *imagePath = [basePath stringByAppendingPathComponent:imageFileName];
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int fd = open(imagePath.fileSystemRepresentation, O_CREAT | O_TRUNC | O_EXCL | O_WRONLY, 0666);
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if (fd == -1) {
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[[AppDelegate sharedInstance] showAlertWithTitle:NSLocalizedString(@"Could not create disk image", nil) message:[[NSString alloc] initWithUTF8String:strerror(errno)]];
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return;
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}
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UIAlertController *alertController = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Creating Disk Image", nil) message:@"\n\n\n" preferredStyle:UIAlertControllerStyleAlert];
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[self presentViewController:alertController animated:true completion:^{
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UIView *alertView = alertController.view;
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UIActivityIndicatorView *activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
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activityView.color = [UIColor blackColor];
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activityView.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin;
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activityView.center = CGPointMake(alertView.bounds.size.width / 2.0, alertView.bounds.size.height / 2.0 + 32.0);
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[alertView addSubview:activityView];
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[activityView startAnimating];
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dispatch_async(dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0), ^{
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int error = 0;
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if (ftruncate(fd, size)) {
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error = errno;
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}
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close(fd);
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dispatch_async(dispatch_get_main_queue(), ^{
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[activityView stopAnimating];
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[self dismissViewControllerAnimated:YES completion:^{
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if (error) {
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[[AppDelegate sharedInstance] showAlertWithTitle:NSLocalizedString(@"Could not create disk image", nil) message:[[NSString alloc] initWithUTF8String:strerror(error)]];
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}
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}];
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[self.tableView beginUpdates];
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[self loadDirectoryContents];
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[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationFade];
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[self.tableView endUpdates];
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});
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});
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}];
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}
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#pragma mark - Text Field Delegate
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- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
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if (textField == sizeTextField) {
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UISegmentedControl *unitsControl = (UISegmentedControl*)textField.rightView;
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NSArray *unitShortcuts = @[@"k", @"m"];
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if (string.length == 0) {
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return YES;
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} else if (string.length == 1 && [unitShortcuts indexOfObject:string.lowercaseString] != NSNotFound) {
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unitsControl.selectedSegmentIndex = [unitShortcuts indexOfObject:string.lowercaseString];
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[unitsControl sendActionsForControlEvents:UIControlEventValueChanged];
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return NO;
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} else {
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NSString *newString = [textField.text stringByReplacingCharactersInRange:range withString:string];
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NSScanner *scanner = [NSScanner scannerWithString:newString];
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double value;
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return [scanner scanDouble:&value] && scanner.isAtEnd && value >= 0;
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}
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} else {
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return YES;
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}
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}
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- (void)textFieldDidBeginEditing:(UITextField *)textField {
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if (textField == nameTextField && textField.text.pathExtension.length > 0) {
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UITextPosition *beforeExtensionPosition = [textField positionFromPosition:textField.endOfDocument offset:-(textField.text.pathExtension.length + 1)];
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UITextRange *nameWithoutExtensionRange = [textField textRangeFromPosition:textField.beginningOfDocument toPosition:beforeExtensionPosition];
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[textField performSelector:@selector(setSelectedTextRange:) withObject:nameWithoutExtensionRange afterDelay:0.1];
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}
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}
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@end
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@implementation FileTableViewCell
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- (void)prepareForReuse {
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[super prepareForReuse];
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self.userInteractionEnabled = YES;
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self.textLabel.text = nil;
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self.textLabel.enabled = YES;
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self.imageView.image = nil;
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self.imageView.alpha = 1.0;
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self.detailTextLabel.text = nil;
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}
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- (void)setFilePath:(NSString *)filePath {
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_filePath = filePath;
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NSString *fileName = filePath.lastPathComponent;
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self.textLabel.text = self.editing ? fileName : fileName.stringByDeletingPathExtension;
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NSDictionary *attributes = [[NSURL fileURLWithPath:filePath] resourceValuesForKeys:@[NSURLTotalFileSizeKey] error:NULL];
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if (attributes && attributes[NSURLTotalFileSizeKey]) {
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BOOL isDiskImage = [[AppDelegate sharedInstance].diskImageExtensions containsObject:fileName.pathExtension.lowercaseString];
|
|
if (isDiskImage) {
|
|
UIImage *icon = [UIImage imageWithIconForDiskImage:filePath];
|
|
if (icon == nil) {
|
|
icon = [UIImage imageNamed:@"floppy"];
|
|
}
|
|
self.imageView.image = icon;
|
|
} else {
|
|
self.imageView.image = [UIImage imageNamed:@"document"];
|
|
}
|
|
NSString *sizeString = [NSByteCountFormatter stringFromByteCount:[attributes[NSURLTotalFileSizeKey] longLongValue] countStyle:NSByteCountFormatterCountStyleBinary];
|
|
self.detailTextLabel.text = sizeString;
|
|
} else {
|
|
self.imageView.image = nil;
|
|
self.detailTextLabel.text = nil;
|
|
}
|
|
}
|
|
|
|
- (void)share:(id)sender {
|
|
UIActivityViewController *avc = [[UIActivityViewController alloc] initWithActivityItems:@[[NSURL fileURLWithPath:self.filePath]] applicationActivities:nil];
|
|
avc.modalPresentationStyle = UIModalPresentationPopover;
|
|
avc.popoverPresentationController.sourceView = self.imageView;
|
|
avc.popoverPresentationController.sourceRect = self.imageView.bounds;
|
|
[self.controller presentViewController:avc animated:YES completion:nil];
|
|
}
|
|
|
|
- (void)rename:(id)sender {
|
|
[self.controller askRenameFile:self.filePath];
|
|
}
|
|
|
|
- (void)delete:(id)sender {
|
|
[self.controller askDeleteFile:self.filePath];
|
|
}
|
|
|
|
@end
|