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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