[22548] | 1 | /* BSD License: Based on SimpleWebView by Sean Heber <[email protected]>, J. Zdziarski */
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| 2 |
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| 3 | #include <sys/select.h>
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| 4 |
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| 5 | #import <UIKit/UIView-Geometry.h>
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| 6 | #import <UIKit/UIView-Rendering.h>
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| 7 |
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| 8 | #import "GreenstoneApplication.h"
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| 9 | #import "SimpleWebView.h"
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| 10 |
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| 11 | // ****** change name away from SimpleWebView
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| 12 |
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| 13 |
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| 14 | @implementation MyWebView
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| 15 | - (void) gestureEnded:(struct __GSEvent *)event
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| 16 | {
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| 17 | [ super gestureEnded: event ];
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| 18 | [ _delegate gestureEnded: event ];
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| 19 | }
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| 20 |
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| 21 | - (void) doubleTap:(struct __GSEvent *)event
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| 22 | {
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| 23 | [ super doubleTap: event ];
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| 24 | [ _delegate doubleTap: event ];
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| 25 | }
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| 26 |
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| 27 |
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| 28 | @end
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| 29 |
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| 30 |
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| 31 | @implementation SimpleWebView
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| 32 |
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| 33 | -(void)view: (UIView*)v didSetFrame:(CGRect)f
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| 34 | {
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| 35 | if (v == webView) {
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| 36 | [ scroller setContentSize: f.size ];
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| 37 | }
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| 38 | }
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| 39 |
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| 40 | -(void)view:(id)v didDrawInRect:(CGRect)f duration:(float)d
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| 41 | {
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| 42 | if (v == webView) {
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| 43 | size = [ webView bounds ].size;
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| 44 | if (size.height != lastSize.height
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| 45 | || size.width != lastSize.width)
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| 46 | {
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| 47 | lastSize = size;
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| 48 | [ scroller setContentSize: size ];
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| 49 | }
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| 50 | }
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| 51 | }
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| 52 |
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| 53 | - (void)gestureEnded:(struct __GSEvent *)event {
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| 54 | [ webView redrawScaledDocument ];
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| 55 | [ webView setNeedsDisplay ];
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| 56 | [ scroller setContentSize: [ webView bounds ].size ];
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| 57 | }
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| 58 |
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| 59 | - (void)doubleTap:(struct __GSEvent *)event {
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| 60 | struct timeval tv;
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| 61 | tv.tv_sec = 2;
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| 62 | tv.tv_usec = 0;
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| 63 | select(NULL, NULL, NULL, NULL, &tv);
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| 64 | [ webView redrawScaledDocument ];
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| 65 | [ webView setNeedsDisplay ];
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| 66 | [ scroller setContentSize: [ webView bounds ].size ];
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| 67 | }
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| 68 |
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| 69 |
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| 70 | -(void)dealloc
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| 71 | {
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| 72 | [ urlRequest release ];
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| 73 | [ webView release ];
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| 74 | [ scroller release ];
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| 75 |
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| 76 | [ super dealloc ];
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| 77 | }
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| 78 |
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| 79 | -(id)initWithFrame: (CGRect)frame
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| 80 | {
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| 81 | return [self initWithFrame:frame withParent:nil];
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| 82 | }
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| 83 |
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| 84 |
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| 85 | -(id)initWithFrame: (CGRect)frame withParent:(UIView*)parent
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| 86 | {
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| 87 | [ super initWithFrame: frame ];
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| 88 |
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| 89 | _parent = parent;
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| 90 | urlRequest = nil;
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| 91 |
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| 92 | int frame_x_dim = frame.size.width;
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| 93 | int frame_y_dim = frame.size.height;
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| 94 |
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| 95 | int nav_x_org = 0.0f;
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| 96 | int nav_y_org = 0.0f;
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| 97 | int nav_x_dim = frame_x_dim;
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| 98 | int nav_y_dim = TOP_NAVBAR_HEIGHT;
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| 99 |
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| 100 | CGRect navrect = CGRectMake(nav_x_org,nav_y_org,nav_x_dim,nav_y_dim);
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| 101 | UINavigationBar* navbar = [[UINavigationBar alloc] initWithFrame: navrect];
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| 102 |
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| 103 | [navbar showButtonsWithLeftTitle:@"Back" rightTitle:nil leftBack:YES];
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| 104 | [navbar enableAnimation];
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| 105 | [navbar setBarStyle: 2]; // Dark, transparent // ****
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| 106 | [navbar setDelegate: self];
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| 107 |
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| 108 | int scroll_x_org = 0.0f;
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| 109 | int scroll_y_org = 0.0f;
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| 110 | int scroll_x_dim = frame_x_dim;
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| 111 | int scroll_y_dim = frame_y_dim;
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| 112 |
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| 113 | CGRect scrollrect = CGRectMake(scroll_x_org,scroll_y_org,scroll_x_dim,scroll_y_dim);
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| 114 |
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| 115 | scroller = [ [ UIScroller alloc ] initWithFrame: scrollrect ];
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| 116 | [ scroller setScrollingEnabled: YES ];
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| 117 | [ scroller setAdjustForContentSizeChange: YES ];
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| 118 | [ scroller setClipsSubviews: NO ];
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| 119 | [ scroller setAllowsRubberBanding: YES ];
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| 120 | [ scroller setDelegate: self ];
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| 121 |
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| 122 | webView = [ [ MyWebView alloc ] initWithFrame: [ scroller bounds ] ];
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| 123 | [ webView setTilingEnabled: YES ];
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| 124 | [ webView setTileSize: scrollrect.size ];
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| 125 | [ webView setAutoresizes: YES];
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| 126 | [ webView setDelegate: self];
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| 127 | [ webView setEnabledGestures: 0xFF ];
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| 128 | [ webView setSmoothsFonts: YES ];
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| 129 |
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| 130 |
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| 131 | [ self addSubview: scroller ];
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| 132 | [ scroller addSubview: webView ];
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| 133 |
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| 134 | [self addSubview: navbar];
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| 135 |
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| 136 | return self;
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| 137 | }
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| 138 |
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| 139 |
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| 140 | -(void) setParent:(UIView*)parent
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| 141 | {
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| 142 | _parent = parent;
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| 143 | }
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| 144 |
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| 145 |
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| 146 | -(id) loadURL:(NSURL*)url
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| 147 | {
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| 148 | CGPoint zero;
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| 149 | zero.x = zero.y = 0;
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| 150 | [scroller scrollPointVisibleAtTopLeft: zero];
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| 151 |
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| 152 | if (urlRequest != nil) { // *****
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| 153 | [urlRequest release];
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| 154 | urlRequest = nil;
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| 155 | }
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| 156 |
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| 157 | urlRequest = [[NSURLRequest requestWithURL:url] retain];
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| 158 | [webView loadRequest:urlRequest];
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| 159 | }
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| 160 |
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| 161 |
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| 162 | //***********
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| 163 | //* Delegates
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| 164 | //***********
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| 165 |
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| 166 |
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| 167 |
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| 168 | -(void) navigationBar:(UINavigationBar*)navbar buttonClicked:(int)button
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| 169 | {
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| 170 | switch (button)
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| 171 | {
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| 172 | case 1: // left
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| 173 | if (_parent != nil) {
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| 174 | // only do transition if there is a parent view to go back to
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| 175 | int transStyle = UITransitionBothShiftRight;
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| 176 | [GreenstoneApplication transitionView:transStyle fromView:self toView:_parent];
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| 177 | }
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| 178 |
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| 179 | // need to think about deallocating self? // *****
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| 180 | break;
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| 181 |
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| 182 | default:
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| 183 | NSLog(@"Unrecognised button = %d",button);
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| 184 | break;
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| 185 | }
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| 186 | }
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| 187 |
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| 188 | @end
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| 189 |
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| 190 |
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| 191 |
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| 192 |
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| 193 |
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| 194 |
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