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NIChameleonObserver.html
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<div id="projectname">NimbusKit
 <span id="projectnumber">1.2.1 - <a href="http://github.com/jverkoey/nimbus">Fork Nimbus on Github</a> - <a href="http://wiki.nimbuskit.info/">Visit the Nimbus Wiki</a></span>
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<div id="projectbrief">The iOS framework that grows only as fast as its documentation</div>
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<div class="summary">
<a href="#pub-methods">Tasks</a> |
<a href="classNIChameleonObserver-members.html">List of all members</a> </div>
<div class="headertitle">
<div class="title">NIChameleonObserver Class Reference<div class="ingroups"><a class="el" href="NimbusCSS.html">Nimbus CSS</a></div></div> </div>
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<div class="contents">
<a name="details" id="details"></a><h2 class="groupheader">Overview</h2>
<div class="textblock"><p>An observer for the Chameleon server. </p>
<p>This observer connects to a Chameleon server and waits for changes in stylesheets. Once a stylesheet change has been detected, the new stylesheet is retrieved from the server and a notification is fired via NIStylesheetDidChangeNotification after the stylesheet has been reloaded.</p>
<p>Thanks to the use of NIOperations, the stylesheet loading and processing is accomplished on a separate thread. This means that the UI will only be notified of stylesheet changes once the request thread has successfully loaded and processed the changed stylesheet. </p>
</div><div class="dynheader">
Inheritance diagram for NIChameleonObserver:</div>
<div class="dyncontent">
<div class="center">
<img src="NIChameleonObserver.png" usemap="#NIChameleonObserver_map" alt=""/>
<map id="NIChameleonObserver_map" name="NIChameleonObserver_map">
<area href="NIOperationDelegate-Protocol.html" title="The delegate protocol for an NIOperation. " alt="<NIOperationDelegate>" shape="rect" coords="0,0,151,24"/>
<area href="NICSSParserDelegate-Protocol.html" title="The delegate protocol for NICSSParser. " alt="<NICSSParserDelegate>" shape="rect" coords="161,0,312,24"/>
</map>
</div></div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Tasks</h2></td></tr>
<tr class="memitem:initWithStylesheetCache:host:"><td class="memItemLeft" align="right" valign="top">(id) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NIChameleonObserver.html#initWithStylesheetCache:host:">initWithStylesheetCache:host:</a></td></tr>
<tr class="separator:initWithStylesheetCache:host:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:stylesheetForPath:"><td class="memItemLeft" align="right" valign="top">(<a class="el" href="NIStylesheet.html">NIStylesheet</a> *) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NIChameleonObserver.html#stylesheetForPath:">stylesheetForPath:</a></td></tr>
<tr class="separator:stylesheetForPath:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:watchSkinChanges"><td class="memItemLeft" align="right" valign="top">(void) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NIChameleonObserver.html#watchSkinChanges">watchSkinChanges</a></td></tr>
<tr class="separator:watchSkinChanges"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:enableBonjourDiscovery:"><td class="memItemLeft" align="right" valign="top">(void) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NIChameleonObserver.html#enableBonjourDiscovery:">enableBonjourDiscovery:</a></td></tr>
<tr class="separator:enableBonjourDiscovery:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:cssParser:pathFromPath:"><td class="memItemLeft" align="right" valign="top">(NSString *) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NICSSParserDelegate-Protocol.html#cssParser:pathFromPath:">cssParser:pathFromPath:</a></td></tr>
<tr class="separator:cssParser:pathFromPath:"><td class="memSeparator" colspan="2"> </td></tr>
<tr><td colspan="2"><div class="groupHeader">[NIOperationDelegate] State Changes</div></td></tr>
<tr class="memitem:nimbusOperationDidStart:"><td class="memItemLeft" align="right" valign="top">(void) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NIOperationDelegate-Protocol.html#nimbusOperationDidStart:">nimbusOperationDidStart:</a></td></tr>
<tr class="separator:nimbusOperationDidStart:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:nimbusOperationWillFinish:"><td class="memItemLeft" align="right" valign="top">(void) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NIOperationDelegate-Protocol.html#nimbusOperationWillFinish:">nimbusOperationWillFinish:</a></td></tr>
<tr class="separator:nimbusOperationWillFinish:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:nimbusOperationDidFinish:"><td class="memItemLeft" align="right" valign="top">(void) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NIOperationDelegate-Protocol.html#nimbusOperationDidFinish:">nimbusOperationDidFinish:</a></td></tr>
<tr class="separator:nimbusOperationDidFinish:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:nimbusOperationDidFail:withError:"><td class="memItemLeft" align="right" valign="top">(void) </td><td class="memItemRight" valign="bottom">- <a class="el" href="NIOperationDelegate-Protocol.html#nimbusOperationDidFail:withError:">nimbusOperationDidFail:withError:</a></td></tr>
<tr class="separator:nimbusOperationDidFail:withError:"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Method Documentation</h2>
<a class="anchor" id="initWithStylesheetCache:host:"></a>
<div class="memitem">
<h3 class="memname">initWithStylesheetCache:host:</h3>
<div class="memdoc">
<p class="abstract">Initializes a newly allocated Chameleon observer with a given stylesheet cache and host. </p>
<div class="declaration">
- (id)initWithStylesheetCache:(<a class="el" href="NIStylesheetCache.html">NIStylesheetCache</a> *)stylesheetCache host:(NSString *)host;</td></tr>
</div>
</div>
</div>
<a class="anchor" id="stylesheetForPath:"></a>
<div class="memitem">
<h3 class="memname">stylesheetForPath:</h3>
<div class="memdoc">
<p class="abstract">Returns a loaded stylesheet from the given path. </p>
<div class="declaration">
- (<a class="el" href="NIStylesheet.html">NIStylesheet</a>*)stylesheetForPath:(NSString *)path;</td></tr>
</div>
</div>
</div>
<a class="anchor" id="watchSkinChanges"></a>
<div class="memitem">
<h3 class="memname">watchSkinChanges</h3>
<div class="memdoc">
<p class="abstract">Begins listening to the Chameleon server for changes. </p>
<div class="declaration">
- (void)watchSkinChanges;</td></tr>
</div>
<h5>Discussion</h5>
<p>When changes are detected the Chameleon observer downloads the new CSS files, reloads them, and then fires the appropriate notifications. </p>
</div>
</div>
<a class="anchor" id="enableBonjourDiscovery:"></a>
<div class="memitem">
<h3 class="memname">enableBonjourDiscovery:</h3>
<div class="memdoc">
<p class="abstract">Browses Bonjour for services with the given name (e.g. </p>
<div class="declaration">
- (void)enableBonjourDiscovery:(NSString *)serviceName;</td></tr>
</div>
<h5>Discussion</h5>
<p>your username) and sets the host automatically. </p>
</div>
</div>
<a class="anchor" id="nimbusOperationDidStart:"></a>
<div class="memitem">
<h3 class="memname">nimbusOperationDidStart:</h3>
<div class="memdoc">
<p class="abstract">The operation has started executing. </p>
<div class="declaration">
- (void)nimbusOperationDidStart:(<a class="el" href="NIOperation.html">NIOperation</a> *)operation;</td></tr>
</div>
<h5>Discussion</h5>
</div>
</div>
<a class="anchor" id="nimbusOperationWillFinish:"></a>
<div class="memitem">
<h3 class="memname">nimbusOperationWillFinish:</h3>
<div class="memdoc">
<p class="abstract">The operation is about to complete successfully. </p>
<div class="declaration">
- (void)nimbusOperationWillFinish:(<a class="el" href="NIOperation.html">NIOperation</a> *)operation;</td></tr>
</div>
<h5>Discussion</h5>
<p>This will not be called if the operation fails.</p>
<p>This will be called from within the operation's runloop and must be thread safe. </p>
</div>
</div>
<a class="anchor" id="nimbusOperationDidFinish:"></a>
<div class="memitem">
<h3 class="memname">nimbusOperationDidFinish:</h3>
<div class="memdoc">
<p class="abstract">The operation has completed successfully. </p>
<div class="declaration">
- (void)nimbusOperationDidFinish:(<a class="el" href="NIOperation.html">NIOperation</a> *)operation;</td></tr>
</div>
<h5>Discussion</h5>
<p>This will not be called if the operation fails. </p>
</div>
</div>
<a class="anchor" id="nimbusOperationDidFail:withError:"></a>
<div class="memitem">
<h3 class="memname">nimbusOperationDidFail:withError:</h3>
<div class="memdoc">
<p class="abstract">The operation failed in some way and has completed. </p>
<div class="declaration">
- (void)nimbusOperationDidFail:(<a class="el" href="NIOperation.html">NIOperation</a> *)operation withError:(NSError *)error;</td></tr>
</div>
<h5>Discussion</h5>
<p>operationDidFinish: will not be called. </p>
</div>
</div>
<a class="anchor" id="cssParser:pathFromPath:"></a>
<div class="memitem">
<h3 class="memname">cssParser:pathFromPath:</h3>
<div class="memdoc">
<p class="abstract">The implementor may use this method to change the filename that will be used to load the CSS file from disk. </p>
<div class="declaration">
- (NSString*)cssParser:(<a class="el" href="NICSSParser.html">NICSSParser</a> *)parser pathFromPath:(NSString *)path;</td></tr>
</div>
<h5>Discussion</h5>
<p>If nil is returned then the given filename will be used.</p>
<p>Example: This is used by the Chameleon observer to hash filenames with md5, effectively flattening the path structure so that the files can be accessed without creating subdirectories. </p>
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