CyteKit/ViewController.mm

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2015  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/UCPlatform.h"
  23
  24 #include <Foundation/Foundation.h>
  25 #include <UIKit/UIKit.h>
  26
  27 #include "CyteKit/ViewController.h"
  28
  29 #include "iPhonePrivate.h"
  30 #include <Menes/ObjectHandle.h>
  31
  32 @implementation UIViewController (Cydia)
  33
  34 - (BOOL) hasLoaded {
  35     return YES;
  36 }
  37
  38 - (void) reloadData {
  39     [self view];
  40 }
  41
  42 - (void) unloadData {
  43     if (UIViewController *modal = [self modalViewController])
  44         [modal unloadData];
  45 }
  46
  47 - (UIViewController *) parentOrPresentingViewController {
  48     if (UIViewController *parent = [self parentViewController])
  49         return parent;
  50     if ([self respondsToSelector:@selector(presentingViewController)])
  51         return [self presentingViewController];
  52     return nil;
  53 }
  54
  55 - (NSURL *) navigationURL {
  56     return nil;
  57 }
  58
  59 @end
  60
  61 @implementation CyteViewController {
  62     _transient id delegate_;
  63     BOOL loaded_;
  64     _H<UIColor> color_;
  65 }
  66
  67 - (void) setDelegate:(id)delegate {
  68     delegate_ = delegate;
  69 }
  70
  71 - (id) delegate {
  72     return delegate_;
  73 }
  74
  75 - (void) viewWillAppear:(BOOL)animated {
  76     [super viewWillAppear:animated];
  77
  78     // Load on first appearance. We don't need to set the loaded flag here
  79     // because it is set for us the first time -reloadData is called.
  80     if (![self hasLoaded])
  81         [self reloadData];
  82 }
  83
  84 - (BOOL) hasLoaded {
  85     return loaded_;
  86 }
  87
  88 - (void) releaseSubviews {
  89     loaded_ = NO;
  90 }
  91
  92 - (void) setView:(UIView *)view {
  93     // Nasty hack for 2.x-compatibility. In 3.0+, we can and
  94     // should just override -viewDidUnload instead.
  95     if (view == nil)
  96         [self releaseSubviews];
  97
  98     [super setView:view];
  99 }
 100
 101 - (void) reloadData {
 102     [super reloadData];
 103
 104     // This is called automatically on the first appearance of a controller,
 105     // or any other time it needs to reload the information shown. However (!),
 106     // this is not called by any tab bar or navigation controller's -reloadData
 107     // method unless this controller returns YES from -hadLoaded.
 108     loaded_ = YES;
 109 }
 110
 111 - (void) unloadData {
 112     loaded_ = NO;
 113     [super unloadData];
 114 }
 115
 116 - (void) setPageColor:(UIColor *)color {
 117     if (color == nil)
 118         color = [UIColor groupTableViewBackgroundColor];
 119     color_ = color;
 120 }
 121
 122 - (UIColor *) pageColor {
 123     return color_;
 124 }
 125
 126 #include "InterfaceOrientation.h"
 127
 128 @end