CyteKit/ViewController.mm

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2014  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cydia is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cydia is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cydia.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "CyteKit/ViewController.h"
  23
  24 #include <Foundation/Foundation.h>
  25 #include <UIKit/UIKit.h>
  26
  27 #include "iPhonePrivate.h"
  28
  29 @implementation UIViewController (Cydia)
  30
  31 - (BOOL) hasLoaded {
  32     return YES;
  33 }
  34
  35 - (void) reloadData {
  36     [self view];
  37 }
  38
  39 - (void) unloadData {
  40     if (UIViewController *modal = [self modalViewController])
  41         [modal unloadData];
  42 }
  43
  44 - (UIViewController *) parentOrPresentingViewController {
  45     if (UIViewController *parent = [self parentViewController])
  46         return parent;
  47     if ([self respondsToSelector:@selector(presentingViewController)])
  48         return [self presentingViewController];
  49     return nil;
  50 }
  51
  52 @end
  53
  54 @implementation CyteViewController
  55
  56 - (void) setDelegate:(id)delegate {
  57     delegate_ = delegate;
  58 }
  59
  60 - (id) delegate {
  61     return delegate_;
  62 }
  63
  64 - (void) viewWillAppear:(BOOL)animated {
  65     [super viewWillAppear:animated];
  66
  67     // Load on first appearance. We don't need to set the loaded flag here
  68     // because it is set for us the first time -reloadData is called.
  69     if (![self hasLoaded])
  70         [self reloadData];
  71 }
  72
  73 - (BOOL) hasLoaded {
  74     return loaded_;
  75 }
  76
  77 - (void) releaseSubviews {
  78     loaded_ = NO;
  79 }
  80
  81 - (void) setView:(UIView *)view {
  82     // Nasty hack for 2.x-compatibility. In 3.0+, we can and
  83     // should just override -viewDidUnload instead.
  84     if (view == nil)
  85         [self releaseSubviews];
  86
  87     [super setView:view];
  88 }
  89
  90 - (void) reloadData {
  91     [super reloadData];
  92
  93     // This is called automatically on the first appearance of a controller,
  94     // or any other time it needs to reload the information shown. However (!),
  95     // this is not called by any tab bar or navigation controller's -reloadData
  96     // method unless this controller returns YES from -hadLoaded.
  97     loaded_ = YES;
  98 }
  99
 100 - (void) unloadData {
 101     loaded_ = NO;
 102     [super unloadData];
 103 }
 104
 105 - (NSURL *) navigationURL {
 106     return nil;
 107 }
 108
 109 - (void) setPageColor:(UIColor *)color {
 110     if (color == nil)
 111         color = [UIColor groupTableViewBackgroundColor];
 112     color_ = color;
 113 }
 114
 115 #include "InterfaceOrientation.h"
 116
 117 @end