On Nov 24, 2008, at 6:32 PM, Pierce Freeman wrote:
Sorry for my newbie-ness, but I still don't really get what you are
talking
about. Are you saying that I should do this:
[WebView setFrameLoadDelegate:didFinishLoadForFrame];
- (void)didFinishLoadForFrame
{
// Do stuff
}
No. Here you're sending setFrameLoadDelegate: to the WebView class instead of an instance, and passing part of the method name as an argument. It likely won't compile, and certainly won't work. Additionally, you're missing part of the delegate method signature.
You'd typically have something like this:
- (void)loadURL
{
NSURLRequest *request = [NSURLRequest requestWithURL:_httpURL
cachePolicy:NSURLRequestReturnCacheDataElseLoad timeoutInterval:60.0];
// self is an object implementing any delegate methods you want to receive
[_webView setFrameLoadDelegate:self];
[[_webView mainFrame] loadRequest:request];
}
- (void)webView:(WebView *)sender didFailLoadWithError:(NSError *)
error forFrame:(WebFrame *)frame;
{
// do something with error
}
- (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)
frame
{
// wait until all frames are loaded
if (NO == [_webView isLoading])
// do something with frame/view
}
where the delegate messages are delivered after each frame loads or
fails. This is the basic delegate pattern in Cocoa, which should be
explained pretty thoroughly in the documentation.
See http://developer.apple.com/documentation/Cocoa/Conceptual/DisplayWebContent/Tasks/LocationChanges.html and http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaFundamentals/CommunicatingWithObjects/chapter_6_section_4.html.
-- Adam
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