Re: Call getElementById in Cocoa
Re: Call getElementById in Cocoa
- Subject: Re: Call getElementById in Cocoa
- From: Pierce Freeman <email@hidden>
- Date: Mon, 24 Nov 2008 17:10:48 -0800
- Thread-topic: Call getElementById in Cocoa
Okay, sounds good. Just making sure, would that code would work?
Sincerely,
Pierce F
On 11/24/08 3:54 PM, "Jean-Daniel Dupas" <email@hidden> wrote:
> The link I provided is for another option, using Javascript call to
> retreive the value, but I think using the native DOM API is prefered.
>
> Note that before calling mainFrameDocument, you should make sure the
> document is loaded. There is probably a WebView delegate method that
> provide this info.
>
>
> Le 25 nov. 08 à 00:43, Pierce Freeman a écrit :
>
>> Does this code convey what you are saying/how to do this?
>>
>> IBOutlet id webView;
>>
>> NSString *urlOfObject = [NSString stringWithFormat:
>> @"http://www.somesite.com/hiddenFieldPage.php";];
>>
>>
>> [[webView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL
>> URLWithString:urlOfObject]]];
>>
>> DomDocument *domObject = [webView mainFrameDocument];
>>
>> NSString *hiddenField = [domObject getElementById:@"hiddenField"];
>>
>> Also, how would the link that you gave come into play in this case?
>>
>>
>> Sincerely,
>>
>> Pierce F
>>
>>
>>
>> On 11/24/08 8:11 AM, "Jean-Daniel Dupas" <email@hidden>
>> wrote:
>>
>>>
>>> Le 24 nov. 08 à 16:42, Pierce Freeman a écrit :
>>>
>>>> Hi everyone.
>>>>
>>>> I am wondering if there is some way to call the getElementById on a
>>>> website
>>>> through Cocoa, and then return the value of the field. I am
>>>> assuming it
>>>> would somehow be through WebKit, but I am not sure how to do this
>>>> (as well
>>>> as if the method needs a different way to get the page's code). The
>>>> use
>>>> would be the application getting the value of a hidden field, and
>>>> then
>>>> outputting it to the user.
>>>>
>>>>
>>>> Sincerely,
>>>>
>>>> Pierce Freeman
>>>
>>> You can do this either by using the Cocoa DOM API directly:
>>>
>>> You call -mainFrameDocument on your WebView to get a DOMDocument
>>> instance, and have access to the DOM functions from here (there is no
>>> up-to-date doc of the Cocoa DOM API, you will have to check headers
>>> files directly to see what function is available, for example the
>>> DOMDocument.h file show you that there is a -[DomDocument
>>> getElementById:] method.
>>>
>>> or you can execute js from your Cocoa code:
>>>
>>> http://developer.apple.com/documentation/Cocoa/Conceptual/DisplayWebContent/
>>> Ta
>>> sks/JavaScriptFromObjC.html
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
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