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<?xml version="1.0"?> <!DOCTYPE gsdoc PUBLIC "-//GNUstep//DTD gsdoc 1.0.4//EN" "http://www.gnustep.org/gsdoc-1_0_4.dtd"> <gsdoc base="NSURLDownload" up="Base"> <head> <title>NSURLDownload class documentation</title> <author name="Generated by Debian"></author> </head> <body> <front><contents /></front> <chapter> <heading> Software documentation for the NSURLDownload class </heading> <class name="NSURLDownload" super="NSObject" ovadd="10.2.0" gvadd="1.13.0"> <declared>Foundation/NSURLDownload.h</declared> <desc> Handles download to file. </desc> <ivariable type="void*" name="_NSURLDownloadInternal" validity="protected" ovadd="10.2.0" gvadd="1.13.0"> <desc> <em>Warning</em> the underscore at the start of the name of this instance variable indicates that, even though it is not technically <em>private</em>, it is intended for internal use within the package, and you should not use the variable in other code. </desc> </ivariable> <method type="BOOL" factory="yes" ovadd="10.2.0" gvadd="1.13.0"> <sel>canResumeDownloadDecodedWithEncodingMIMEType:</sel> <arg type="NSString*">MIMEType</arg> <desc> Returns a flag saying whether the class can resume a download which was decoded with <var>MIMEType</var>. <br /> </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>cancel</sel> <desc> Cancels the download and deletes any downloaded file. </desc> </method> <method type="BOOL" ovadd="10.2.0" gvadd="1.13.0"> <sel>deletesFileUponFailure</sel> <desc> Returns a flag saying whether a partially downloaded file should be deleted on failure... <code>YES</code> by default. </desc> </method> <method type="id" ovadd="10.2.0" gvadd="1.13.0"> <sel>initWithRequest:</sel> <arg type="NSURLRequest*">request</arg> <sel>delegate:</sel> <arg type="id">delegate</arg> <desc> Initialises the receiver and start the download process. </desc> </method> <method type="id" init="yes" ovadd="10.2.0" gvadd="1.13.0"> <sel>initWithResumeData:</sel> <arg type="NSData*">resumeData</arg> <sel>delegate:</sel> <arg type="id">delegate</arg> <sel>path:</sel> <arg type="NSString*">path</arg> <desc> Initialises the receiver with data from a previous partial download and resumes (or restarts) the downloading process. </desc> </method> <method type="NSURLRequest*" ovadd="10.2.0" gvadd="1.13.0"> <sel>request</sel> <desc> Returns the receiver's request. </desc> </method> <method type="NSData*" ovadd="10.2.0" gvadd="1.13.0"> <sel>resumeData</sel> <desc> Returns state data of an incomplete download... this data should be sufficient to resume/restart the download using the <ref type="method" id="-initWithResumeData:delegate:path:">-initWithResumeData:delegate:path:</ref> method. <br /> Returns <code>nil</code> if a resume is probably impossible. <br /> NB. You need to call <ref type="method" id="-setDeletesFileUponFailure:">-setDeletesFileUponFailure:</ref> to turn off deletion if you wish to be able to resume an incomplete download. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>setDeletesFileUponFailure:</sel> <arg type="BOOL">deletesFileUponFailure</arg> <desc> Sets a flag to determine if downloaded file is be deleted upon failure. This is <code>YES</code> by default and needs to be set to <code>NO</code> if you want to be able to attempt to resume a failed download. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>setDestination:</sel> <arg type="NSString*">path</arg> <sel>allowOverwrite:</sel> <arg type="BOOL">allowOverwrite</arg> <desc> Sets the <var>path</var> to which the file is downloaded. <br /> May be called (once only) after initialisation of the receiver or when the delegate receives a <ref type="method" id="-download:decideDestinationWithSuggestedFilename:">-download:decideDestinationWithSuggestedFilename:</ref> message. <br /> Appends a number to the filename if <var>allowOverwrite</var> is <code>NO</code> and a file already exists at <var>path</var>. <br /> See <ref type="method" id="-download:didCreateDestination:">-download:didCreateDestination:</ref> also. </desc> </method> </class> </chapter> <chapter> <heading> Software documentation for the NSObject(NSURLDownloadDelegate) category </heading> <category name="NSURLDownloadDelegate" class="NSObject" ovadd="10.7.0" gvadd="1.13.0"> <declared>Foundation/NSURLDownload.h</declared> <desc> <em>Description forthcoming.</em> </desc> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>decideDestinationWithSuggestedFilename:</sel> <arg type="NSString*">filename</arg> <desc> Called when it's time to establish a name for the downloaded file... the delegate may decide a name by inspecting the response. <br /> The delegate should call <ref type="method" id="-setDestination:allowOverwrite:"> -setDestination:allowOverwrite: </ref> to set the <var>filename</var> to be used. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>didCancelAuthenticationChallenge:</sel> <arg type="NSURLAuthenticationChallenge*">challenge</arg> <desc> Called when authentication of a request is cancelled. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>didCreateDestination:</sel> <arg type="NSString*">path</arg> <desc> Called when the <var>download</var> has created the downloaded file. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>didFailWithError:</sel> <arg type="NSError*">error</arg> <desc> Called when the <var>download</var> fails. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>didReceiveAuthenticationChallenge:</sel> <arg type="NSURLAuthenticationChallenge*">challenge</arg> <desc> Called when an authentication <var>challenge</var> is received. <br /> The delegate should send <ref type="method" id="-useCredential:forAuthenticationChallenge:">-useCredential:forAuthenticationChallenge:</ref> or <ref type="method" id="-continueWithoutCredentialForAuthenticationChallenge:">-continueWithoutCredentialForAuthenticationChallenge:</ref> or <ref type="method" id="-cancel">-cancel</ref> to the connection sender when done. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>didReceiveDataOfLength:</sel> <arg type="NSUInteger">length</arg> <desc> Called when some data has been received. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>didReceiveResponse:</sel> <arg type="NSURLResponse*">response</arg> <desc> Called when a <var>response</var> is received. <br /> Multiple responses may be received on the same <var>download</var> (eg with server push) and the delegate should be prepared to treat each separately. </desc> </method> <method type="BOOL" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>shouldDecodeSourceDataOfMIMEType:</sel> <arg type="NSString*">encodingType</arg> <desc> Called if the <var>download</var> file is encoded... the delegate should return <code>YES</code> if the downloaded data is to be decoded, <code>NO</code> otherwise. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>willResumeWithResponse:</sel> <arg type="NSURLResponse*">response</arg> <sel>fromByte:</sel> <arg type="long long">startingByte</arg> <desc> Called when a <var>download</var> is resuming from previously stored data and a <var>response</var> has been received from the server. <br /> The startingBytes is the offset from which the downloaded data will actually commence... and may be zero if the entire <var>download</var> must be redone. </desc> </method> <method type="NSURLRequest*" ovadd="10.2.0" gvadd="1.13.0"> <sel>download:</sel> <arg type="NSURLDownload*">download</arg> <sel>willSendRequest:</sel> <arg type="NSURLRequest*">request</arg> <sel>redirectResponse:</sel> <arg type="NSURLResponse*">redirectResponse</arg> <desc> Called if a new <var>request</var> has to be sent due to redirection. <br /> Must return the <var>request</var> argument (or a modified copy of it) to have the process continue. </desc> </method> <method type="void" ovadd="10.2.0" gvadd="1.13.0"> <sel>downloadDidFinish:</sel> <arg type="NSURLDownload*">download</arg> <desc> Called when the <var>download</var> completes after having received all data. </desc> </method> </category> </chapter> <chapter> <heading> Software documentation for the NSURLDownloadDelegate protocol </heading> <protocol name="NSURLDownloadDelegate" ovadd="10.7.0" gvadd="1.13.0"> <declared>Foundation/NSURLDownload.h</declared> <conform>NSObject</conform> <desc> <em>Description forthcoming.</em> </desc> </protocol> </chapter> </body> </gsdoc>