[iPhone] Hack UIWebView〜コンパイル

SafariのレンダリングエンジンでHTMLを表示できるUIWebViewを試してみた．
Web上にあんまり情報がまとまっておらず，ちょっと苦労した．
・ソースコード
MyWebView.m

#import "MyWebView.h"
@interface UIWebView (HackWebView)	// for peeking msg to UIWebView
- (BOOL) respondsToSelector:(SEL) selector;
@end
@implementation UIWebView (HackWebView)
- (BOOL) respondsToSelector:(SEL) selector {
NSLog(@"[UIWebView] respondsToSelector: %s", selector);
return [super respondsToSelector:selector];
}
@end
@implementation MyWebView
- (id) initWithFrame:(CGRect) frame {
self = [super initWithFrame:frame];
// create WebView
webView_ = [[[UIWebView alloc] initWithFrame:frame] autorelease];
[webView_ setDelegate:self];
[webView_ setTilingEnabled: YES];
[webView_ setTileSize: CGSizeMake(320,500)];
[webView_ setAutoresizes: YES];
[self addSubview:webView_];
// load html
NSString *html = [NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"source" ofType:@"html"] encoding:NSUTF8StringEncoding error:nil];
[webView_ loadHTMLString:html baseURL:nil];
return self;
}
- (void) view:(id)view didDrawInRect:(CGRect)rect duration:(float)duration {
}
- (void) view:(id)view didSetFrame:(CGRect)currentRect oldFrame:(CGRect)oldRect {
[self setContentSize:currentRect.size];
}
- (BOOL) respondsToSelector:(SEL) selector {
NSLog(@"[MyWebView] respondsToSelector: %s", selector);
return [super respondsToSelector:selector];
}
@end

MyWebView.h

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import <UIKit/UIApplication.h>
#import <UIKit/UIView-Geometry.h>
#import <UIKit/UIView-Hierarchy.h>
#import <UIKit/UIView-Internal.h>
#import <UIKit/UIScroller.h>
#import <UIKit/UIWebView.h>
//#import <WebKit/WebView.h>
//#import <WebKit/WebFrame.h>
// if activate these lines, can't compile this..... I disgust a warning msg.
#import <WebCore/DOMHTMLDocument.h>
#import <WebCore/DOMHTMLElement-DOMHTMLElementExtensions.h>
#import "global.h"
@interface MyWebView : UIScroller {
UIWebView *webView_;
}
@end

・コンパイルとヘッダファイル修正
実は，Erica氏のヘッダファイル等ではコンパイルできない．
そこで，修正をかける．修正は４つのファイルで，以下です．

>
diff ./include/UIKit/UIWebView.h ./include.original/UIKit/UIWebView.h
9c9
< //#import "UIKeyboardInputProtocol.h"
---
> #import "UIKeyboardInputProtocol.h"
11c11
< @class DOMHTMLElement, DOMNode, DOMNode/*<UIFormControl>*/, NSTimer, UIAutoscrollTimer, UIInformalDelegate, UITextLoupe, UITextTraits, UITextView, UIView, WebPDFView, WebView;
---
> @class DOMHTMLElement, DOMNode, DOMNode<UIFormControl>, NSTimer, UIAutoscrollTimer, UIInformalDelegate, UITextLoupe, UITextTraits, UITextView, UIView, WebPDFView, WebView;
13c13
< @interface UIWebView : UITiledView/* <UIKeyboardInput>*/
---
> @interface UIWebView : UITiledView <UIKeyboardInput>
43c43
<       DOMNode/*<UIFormControl>*/ *element;
---
>         DOMNode<UIFormControl> *element;
diff ./include/WebCore/DOMHTMLDocument.h ./include.original/WebCore/DOMHTMLDocument.h
13c13
< //-     // Error parsing type: 以下略
---
> -     // Error parsing type: 以下略
diff ./include/WebCore/DOMObject.h ./include.original/WebCore/DOMObject.h
9c9
< //#import "NSCopyingProtocol.h"
---
> #import "NSCopyingProtocol.h"
diff ./include/WebCore/WebScriptObject.h ./include.original/WebCore/WebScriptObject.h
7c7
< //#import "NSObject.h"
---
> #import "NSObject.h"
</pre>

これで，自前でUIWebViewを作ることができますた．