Question

i am making an iphone app that get data from web ,i use HPPLE to parse the html ,all works fine but in same cases i have problem to access elements created dynamically by JavaScript (document.write) in html web page .this is my html web source page source

<table dir = "rtl .......">
<tbody>
<script src = "get.aspx?type=js&file=ajax&rev=3"......>
<script language = "JavaScript" src = "get.aspx?type=js&file=mc&rev=6"></script>
<script>..</script>
<tr>..</tr>
<tr>..</tr>
<tr>..</tr>
<tr>..</tr>
<tr>..</tr>
<tr>..</tr>
<tr>..</tr>
<script>..</script>
<tr>..</tr>
<tr>..</tr>
<tr>..</tr>

i can see all elements labelled < tr> with safari Browser’s Developer Tools ,but when i try to download the html code the source that I get contains no html tags i want. sory of my bad english.and i hope some one help me.

Answer 1

The simplest solution to get JavaScript support is use a UIWebView. It doesn’t need to be added to the view hierarchy.

UIWebView *webView = [[UIWebView alloc] init];
NSString *url = @"http://www.google.com";
webView.delegate = self;
frames = 0; // NSUInteger instance variable to track frame loads
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:url]]];    

UIWebViewDelegate Methods

- (void)webViewDidStartLoad:(UIWebView *)webView {
    frames++;
}

- (void)webViewDidFinishLoad:(UIWebView *)webView {
    frames--;
    if (frames > 0) return;

    NSString *document = [webView stringByEvaluatingJavaScriptFromString:@"document.body.innerHTML"];

    // Use HPPLE to parse
}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error {
    // Handle error
}

Now that you have the document text, you could pass that to HPPLE