code.grnet.gr Git - pithos-ios/blob - Classes/UIViewController+Conveniences.m

   1 //
   2 //  UIViewController+Conveniences.m
   3 //
   4 //  Created by Mike Mayo on 7/21/10.
   5 //
   6
   7 #import "UIViewController+Conveniences.h"
   8 #import "NSObject+Conveniences.h"
   9 #import "OpenStackRequest.h"
  10 #import "LogEntryModalViewController.h"
  11 #import "APILogEntry.h"
  12 #import "OpenStackAccount.h"
  13 #import "OpenStackAppDelegate.h"
  14 #import "UIColor+MoreColors.h"
  15 #import "ErrorAlerter.h"
  16 #import "RootViewController.h"
  17
  18 @implementation UIViewController (Conveniences)
  19
  20 -(void)cancelButtonPressed:(id)sender {
  21         [self dismissModalViewControllerAnimated:YES];
  22 }
  23
  24 - (void)addCancelButton {
  25     UIBarButtonItem *cancel = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancelButtonPressed:)];
  26     self.navigationItem.leftBarButtonItem = cancel;
  27     [cancel release];
  28 }
  29
  30 - (void)addSaveButton {
  31     UIBarButtonItem *save = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(saveButtonPressed:)];
  32     self.navigationItem.rightBarButtonItem = save;
  33     [save release];
  34 }
  35
  36 - (void)addAddButton {
  37     UIBarButtonItem *add = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addButtonPressed:)];
  38     self.navigationItem.rightBarButtonItem = add;
  39     [add release];
  40 }
  41
  42 - (void)addDoneButton {
  43     UIBarButtonItem *done = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(doneButtonPressed:)];
  44     self.navigationItem.rightBarButtonItem = done;
  45     [done release];
  46 }
  47
  48 - (void)addNextButton {
  49     UIBarButtonItem *next = [[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStyleBordered target:self action:@selector(nextButtonPressed:)];
  50     self.navigationItem.rightBarButtonItem = next;
  51     [next release];
  52 }
  53
  54 - (UINavigationController *)navigationControllerWithRootViewController:(UIViewController *)viewController {
  55     UINavigationController *nav = [[[UINavigationController alloc] initWithRootViewController:viewController] autorelease];
  56     if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
  57         nav.modalPresentationStyle = UIModalPresentationFormSheet;
  58         nav.navigationBar.barStyle = UIBarStyleBlack;
  59         nav.navigationBar.opaque = NO;
  60     } else {
  61         nav.navigationBar.tintColor = self.navigationController.navigationBar.tintColor;
  62         nav.navigationBar.translucent = self.navigationController.navigationBar.translucent;
  63         nav.navigationBar.opaque = self.navigationController.navigationBar.opaque;
  64         nav.navigationBar.barStyle = self.navigationController.navigationBar.barStyle;
  65     }
  66     return nav;
  67 }
  68
  69 - (void)presentModalViewControllerWithNavigation:(UIViewController *)viewController animated:(BOOL)animated {
  70     [self.navigationController presentModalViewController:[self navigationControllerWithRootViewController:viewController]
  71                                                  animated:animated];
  72 }
  73
  74 - (void)presentModalViewControllerWithNavigation:(UIViewController *)viewController {
  75     [self presentModalViewControllerWithNavigation:viewController animated:YES];
  76 }
  77
  78 - (void)presentPrimaryViewController:(UIViewController *)viewController animated:(BOOL)animated {
  79     // if we're on iphone, do a regular push, on iPad, let's change the split view
  80
  81     if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
  82         OpenStackAppDelegate *app = [[UIApplication sharedApplication] delegate];
  83         app.masterNavigationController.viewControllers = [NSArray arrayWithObject:viewController];
  84         if (app.rootViewController.popoverController != nil) {
  85             viewController.navigationItem.leftBarButtonItem = app.barButtonItem;
  86         }
  87     } else {
  88         [self.navigationController pushViewController:viewController animated:animated];
  89     }
  90 }
  91
  92 - (void)presentPrimaryViewController:(UIViewController *)viewController {
  93     [self presentPrimaryViewController:viewController animated:YES];
  94 }
  95
  96 - (void)alert:(NSString *)title message:(NSString *)message {
  97     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
  98         [alert show];
  99     [alert release];
 100 }
 101
 102 - (void)alert:(NSString *)message request:(OpenStackRequest *)request addAccountSettingsButton:(BOOL)addAccountSettingsButton {
 103    request.errorAlerter = [[[ErrorAlerter alloc] init] autorelease];
 104    if ((request.responseStatusCode == 401) || request.responseStatusCode == 403) {
 105         message = [message stringByAppendingString:@" Authorization failed. Please check your Username and Token."];
 106     } else if (request.responseStatusCode == 503) {
 107         message = [message stringByAppendingString:@" Service is currently unavailable. Please try again later."];
 108     }
 109     [request.errorAlerter alert:message request:request viewController:self addAccountSettingsButton:addAccountSettingsButton];
 110 }
 111
 112 - (void)alert:(NSString *)message request:(OpenStackRequest *)request {
 113     [self alert:message request:request addAccountSettingsButton:NO];
 114 }
 115
 116 - (void)failOnBadConnection {
 117     NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
 118     if (![defaults boolForKey:@"already_failed_on_connection"]) {
 119         [self alert:@"Connection Error" message:@"Please check your connection or API URL and try again."];
 120     }
 121     [defaults setBool:YES forKey:@"already_failed_on_connection"];
 122     [defaults synchronize];
 123 }
 124
 125 - (UITableViewCell *)tableView:(UITableView *)tableView emptyCellWithImage:(UIImage *)image title:(NSString *)title subtitle:(NSString *)subtitle deleteButtonTitle:(NSString *)deleteButtonTitle deleteButtonSelector:(SEL)deleteButtonSelector {
 126     static NSString *CellIdentifier = @"EmptyCell";
 127
 128     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
 129     if (cell == nil) {
 130         cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
 131     }
 132
 133     UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, tableView.frame.size.height)];
 134     container.center = cell.center;
 135     container.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin;
 136
 137     UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
 138
 139     CGRect imageRect = CGRectMake(tableView.frame.size.width / 2.0 - imageView.frame.size.width / 2.0, (tableView.frame.size.height / 2.0 - imageView.frame.size.height / 2.0) - 35.0, imageView.frame.size.width, imageView.frame.size.height);
 140
 141     if (deleteButtonTitle) {
 142         imageRect = CGRectMake(tableView.frame.size.width / 2.0 - imageView.frame.size.width / 2.0, (tableView.frame.size.height / 2.0 - imageView.frame.size.height / 2.0) - 78.0, imageView.frame.size.width, imageView.frame.size.height);
 143     }
 144
 145     imageView.frame = imageRect;
 146
 147     [container addSubview:imageView];
 148     [imageView release];
 149
 150     UIFont *font = [UIFont boldSystemFontOfSize:18.0];
 151     CGSize size = [title sizeWithFont:font constrainedToSize:CGSizeMake(tableView.frame.size.width - 20.0, tableView.frame.size.height) lineBreakMode:UILineBreakModeWordWrap];
 152     CGRect rect = CGRectMake(10.0, imageView.frame.origin.y + imageView.frame.size.height + 20.0, tableView.frame.size.width - 20.0, size.height);
 153
 154     UILabel *label = [[UILabel alloc] initWithFrame:rect];
 155     label.numberOfLines = 0;
 156     label.lineBreakMode = UILineBreakModeWordWrap;
 157     label.font = font;
 158     label.textColor = [UIColor emptyCollectionGrayColor];
 159     label.text = title;
 160     label.textAlignment = UITextAlignmentCenter;
 161     [container addSubview:label];
 162
 163     font = [UIFont boldSystemFontOfSize:14.0];
 164     size = [subtitle sizeWithFont:font constrainedToSize:CGSizeMake(tableView.frame.size.width - 20.0, tableView.frame.size.height) lineBreakMode:UILineBreakModeWordWrap];
 165     rect = CGRectMake(10.0, rect.origin.y + label.frame.size.height + 8.0, tableView.frame.size.width - 20.0, size.height);
 166
 167     UILabel *sublabel = [[UILabel alloc] initWithFrame:rect];
 168     sublabel.numberOfLines = 0;
 169     sublabel.lineBreakMode = UILineBreakModeWordWrap;
 170     sublabel.font = font;
 171     sublabel.textColor = [UIColor emptyCollectionGrayColor];
 172     sublabel.text = subtitle;
 173     sublabel.textAlignment = UITextAlignmentCenter;
 174     [container addSubview:sublabel];
 175
 176
 177     if (deleteButtonTitle) {
 178         rect = CGRectMake(10.0, rect.origin.y + sublabel.frame.size.height + 57.0, 301.0, 43.0);
 179         UIButton *deleteButton = [UIButton buttonWithType:UIButtonTypeCustom];
 180         deleteButton.frame = rect;
 181         deleteButton.titleLabel.font = [UIFont boldSystemFontOfSize:18.0];
 182         [deleteButton setBackgroundImage:[UIImage imageNamed:@"red-button.png"] forState:UIControlStateNormal];
 183         [deleteButton setTitle:deleteButtonTitle forState:UIControlStateNormal];
 184         [deleteButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
 185         [deleteButton addTarget:self action:deleteButtonSelector forControlEvents:UIControlEventTouchUpInside];
 186         [container addSubview:deleteButton];
 187     }
 188
 189     [label release];
 190     [sublabel release];
 191
 192     [cell addSubview:container];
 193     [container release];
 194
 195     return cell;
 196 }
 197
 198 - (UITableViewCell *)tableView:(UITableView *)tableView emptyCellWithImage:(UIImage *)image title:(NSString *)title subtitle:(NSString *)subtitle {
 199     return [self tableView:tableView emptyCellWithImage:image title:title subtitle:subtitle deleteButtonTitle:nil deleteButtonSelector:nil];
 200 }
 201
 202 @end