Hi,
I am a newbie in the Mac world.
I need to create an app that is able to extract information entered on a web page, from text fields. My app will load a webpage hosted somewhere, and within the webpage there will be a a series of text fields and a submit button. Once the button is clicked, I must be able to read the information entered into the text fields of this webpage.
I have code as follows:
+ (BOOL)isSelectorExcludedFromWebScript:(SEL)aSelector
{
// For security, you must explicitly allow a selector to be called from JavaScript.
if (aSelector == @selector(showMessage:)) {
return NO; // i.e. showMessage: is NOT _excluded_ from scripting, so it can be called.
}
return YES; // disallow everything else
}
- (void)showMessage:(NSString *)message
{
// This method is called from the JavaScript "onClick" handler of the INPUT element
// in the HTML. This shows you how to have HTML form elements call Cocoa methods.
DOMDocument *myDOMDocument = [[webView mainFrame] DOMDocument]; // 3
DOMElement *contentTitle = [myDOMDocument getElementById:@"TexTest"]; // DOM
message = [[contentTitle firstChild] nodeValue]; // lines
NSRunAlertPanel(@"Message from JavaScript", message, nil, nil, nil);
}
When I run the app, and it gets to NSRunAlertPanel, it does not want to execute further.
When I comment the 3 DOM lines out, the NSRunAlertPanel shows its message and I can continue.
The HTML looks like this:
<body>
<h1 id="contentTitle">Some kind of title</h1>
<div id="main_content">
<p>Some content</p>
<p>Some more content</p>
</div>
<div>
<input id="TexTest" value=" " type="text">
</div>
<div>
<input id="message_button" value="Show Message" onclick="window.AppController.showMessage_('Hello there...');" type="button">
</div>
</body>
Anybody able to assist in this matter?