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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>Nimbus: src/css/src/NIStylesheet.m Source File</title>
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<a style="float: right;margin-right:20px;margin-top:20px" href='http://www.pledgie.com/campaigns/15519'><img alt='Click here to support Nimbus development and make a donation at www.pledgie.com !' src='http://www.pledgie.com/campaigns/15519.png?skin_name=chrome' border='0' /></a>
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<div id="projectname">Nimbus
 <span id="projectnumber">0.9.3 - <a href="http://github.com/jverkoey/nimbus">Nimbus is proudly hosted on Github</a></span>
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<div id="projectbrief">An iOS framework whose growth is bounded by O(documentation).</div>
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<div class="title">src/css/src/NIStylesheet.m</div> </div>
</div>
<div class="contents">
<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">//</span>
<a name="l00002"></a>00002 <span class="comment">// Copyright 2011 Jeff Verkoeyen</span>
<a name="l00003"></a>00003 <span class="comment">//</span>
<a name="l00004"></a>00004 <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span>
<a name="l00005"></a>00005 <span class="comment">// you may not use this file except in compliance with the License.</span>
<a name="l00006"></a>00006 <span class="comment">// You may obtain a copy of the License at</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span>
<a name="l00009"></a>00009 <span class="comment">//</span>
<a name="l00010"></a>00010 <span class="comment">// Unless required by applicable law or agreed to in writing, software</span>
<a name="l00011"></a>00011 <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span>
<a name="l00012"></a>00012 <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<a name="l00013"></a>00013 <span class="comment">// See the License for the specific language governing permissions and</span>
<a name="l00014"></a>00014 <span class="comment">// limitations under the License.</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#import "NIStylesheet.h"</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="preprocessor">#import "NICSSParser.h"</span>
<a name="l00020"></a>00020 <span class="preprocessor">#import "NICSSRuleset.h"</span>
<a name="l00021"></a>00021 <span class="preprocessor">#import "NIStyleable.h"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#import "NimbusCore.h"</span>
<a name="l00023"></a>00023
<a name="l00024"></a><a class="code" href="group___c_s_s-_stylesheets.html#ga9be59ce3e581475f2ae8e9888bc9f239">00024</a> <a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a>* <span class="keyword">const</span> <a class="code" href="group___c_s_s-_stylesheets.html#ga9be59ce3e581475f2ae8e9888bc9f239" title="The notification key for when a stylesheet has changed.">NIStylesheetDidChangeNotification</a> = <span class="stringliteral">@"NIStylesheetDidChangeNotification"</span>;
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="keyword">@interface </span><a class="code" href="interface_n_i_stylesheet.html" title="Loads and caches information regarding a specific stylesheet.">NIStylesheet</a>()
<a name="l00027"></a>00027 <span class="keyword">@property</span> (nonatomic, readonly, copy) NSDictionary* rawRulesets;
<a name="l00028"></a>00028 <span class="keyword">@property</span> (nonatomic, readonly, copy) NSDictionary* significantScopeToScopes;
<a name="l00029"></a>00029 <span class="keyword">@end</span>
<a name="l00030"></a>00030
<a name="l00034"></a>00034 <span class="keyword">@implementation </span><a class="code" href="interface_n_i_stylesheet.html" title="Loads and caches information regarding a specific stylesheet.">NIStylesheet</a>
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">@synthesize</span> rawRulesets = _rawRulesets;
<a name="l00037"></a>00037 <span class="keyword">@synthesize</span> significantScopeToScopes = _significantScopeToScopes;
<a name="l00038"></a>00038
<a name="l00039"></a>00039
<a name="l00041"></a>00041 - (void)dealloc {
<a name="l00042"></a>00042 [[NSNotificationCenter defaultCenter] removeObserver:self];
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(_rawRulesets);
<a name="l00045"></a>00045 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(_ruleSets);
<a name="l00046"></a>00046 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(_significantScopeToScopes);
<a name="l00047"></a>00047
<a name="l00048"></a>00048 [<span class="keyword">super</span> dealloc];
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051
<a name="l00053"></a>00053 - (id)init {
<a name="l00054"></a>00054 <span class="keywordflow">if</span> ((<span class="keyword">self</span> = [super init])) {
<a name="l00055"></a>00055 _ruleSets = [[NSMutableDictionary alloc] init];
<a name="l00056"></a>00056
<a name="l00057"></a>00057 NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
<a name="l00058"></a>00058 [nc addObserver: self
<a name="l00059"></a>00059 selector: @selector(didReceiveMemoryWarning:)
<a name="l00060"></a>00060 name: UIApplicationDidReceiveMemoryWarningNotification
<a name="l00061"></a>00061 object: nil];
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067
<a name="l00070"></a>00070 <span class="preprocessor">#pragma mark - Rule Sets</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span>
<a name="l00072"></a>00072
<a name="l00074"></a>00074 <span class="comment">// Builds a map of significant scopes to full scopes.</span>
<a name="l00075"></a>00075 <span class="comment">//</span>
<a name="l00076"></a>00076 <span class="comment">// For example, consider the following rulesets:</span>
<a name="l00077"></a>00077 <span class="comment">//</span>
<a name="l00078"></a>00078 <span class="comment">// .root UIButton {</span>
<a name="l00079"></a>00079 <span class="comment">// }</span>
<a name="l00080"></a>00080 <span class="comment">// .apple UIButton {</span>
<a name="l00081"></a>00081 <span class="comment">// }</span>
<a name="l00082"></a>00082 <span class="comment">// UIButton UIView {</span>
<a name="l00083"></a>00083 <span class="comment">// }</span>
<a name="l00084"></a>00084 <span class="comment">// UIView {</span>
<a name="l00085"></a>00085 <span class="comment">// }</span>
<a name="l00086"></a>00086 <span class="comment">//</span>
<a name="l00087"></a>00087 <span class="comment">// The generated scope map will look like:</span>
<a name="l00088"></a>00088 <span class="comment">//</span>
<a name="l00089"></a>00089 <span class="comment">// UIButton => (.root UIButton, .apple UIButton)</span>
<a name="l00090"></a>00090 <span class="comment">// UIView => (UIButton UIView, UIView)</span>
<a name="l00091"></a>00091 <span class="comment">//</span>
<a name="l00092"></a>00092 - (void)rebuildSignificantScopeToScopes {
<a name="l00093"></a>00093 NSMutableDictionary* significantScopeToScopes =
<a name="l00094"></a>00094 [[NSMutableDictionary alloc] initWithCapacity:[_rawRulesets count]];
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordflow">for</span> (<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a>* scope in _rawRulesets) {
<a name="l00097"></a>00097 NSArray* parts = [scope componentsSeparatedByString:@" "];
<a name="l00098"></a>00098 <a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a>* mostSignificantScopePart = [parts lastObject];
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="comment">// TODO (jverkoey Oct 6, 2011): We should respect CSS specificity. Right now this will</span>
<a name="l00101"></a>00101 <span class="comment">// give higher precedance to newer styles. Instead, we should prefer styles that have more</span>
<a name="l00102"></a>00102 <span class="comment">// selectors.</span>
<a name="l00103"></a>00103 NSMutableArray* scopes = [significantScopeToScopes objectForKey:mostSignificantScopePart];
<a name="l00104"></a>00104 <span class="keywordflow">if</span> (nil == scopes) {
<a name="l00105"></a>00105 scopes = [[NSMutableArray alloc] initWithObjects:scope, nil];
<a name="l00106"></a>00106 [significantScopeToScopes setObject:scopes forKey:mostSignificantScopePart];
<a name="l00107"></a>00107 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(scopes);
<a name="l00108"></a>00108
<a name="l00109"></a>00109 } <span class="keywordflow">else</span> {
<a name="l00110"></a>00110 [scopes addObject:scope];
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113
<a name="l00114"></a>00114 [_significantScopeToScopes release];
<a name="l00115"></a>00115 _significantScopeToScopes = [significantScopeToScopes copy];
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(significantScopeToScopes);
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119
<a name="l00120"></a>00120
<a name="l00122"></a>00122 - (void)ruleSetsDidChange {
<a name="l00123"></a>00123 [<span class="keyword">self</span> rebuildSignificantScopeToScopes];
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a>00126
<a name="l00129"></a>00129 <span class="preprocessor">#pragma mark - NSNotifications</span>
<a name="l00130"></a>00130 <span class="preprocessor"></span>
<a name="l00131"></a>00131
<a name="l00133"></a>00133 - (void)reduceMemory {
<a name="l00134"></a>00134 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(_ruleSets);
<a name="l00135"></a>00135 _ruleSets = [[NSMutableDictionary alloc] init];
<a name="l00136"></a>00136 }
<a name="l00137"></a>00137
<a name="l00138"></a>00138
<a name="l00140"></a>00140 - (void)didReceiveMemoryWarning:(<span class="keywordtype">void</span>*)object {
<a name="l00141"></a>00141 [<span class="keyword">self</span> reduceMemory];
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144
<a name="l00147"></a>00147 <span class="preprocessor">#pragma mark - Public Methods</span>
<a name="l00148"></a>00148 <span class="preprocessor"></span>
<a name="l00149"></a>00149
<a name="l00151"></a><a class="code" href="interface_n_i_stylesheet.html#a96bd7584fa340a41f3066bc550dcec64">00151</a> - (BOOL)loadFromPath:(<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a> *)path {
<a name="l00152"></a>00152 <span class="keywordflow">return</span> [<span class="keyword">self</span> <a class="code" href="interface_n_i_stylesheet.html#af95a88b29e53a7695d03fc77e057f131" title="Loads and parses a CSS file from disk.">loadFromPath</a>:path <a class="code" href="interface_n_i_stylesheet.html#af95a88b29e53a7695d03fc77e057f131" title="Loads and parses a CSS file from disk.">pathPrefix</a>:nil <a class="code" href="interface_n_i_stylesheet.html#af95a88b29e53a7695d03fc77e057f131" title="Loads and parses a CSS file from disk.">delegate</a>:nil];
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155
<a name="l00157"></a><a class="code" href="interface_n_i_stylesheet.html#ad35501aa073cb676534dc597133ad4ab">00157</a> - (BOOL)loadFromPath:(<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a> *)path pathPrefix:(<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a> *)pathPrefix {
<a name="l00158"></a>00158 <span class="keywordflow">return</span> [<span class="keyword">self</span> <a class="code" href="interface_n_i_stylesheet.html#af95a88b29e53a7695d03fc77e057f131" title="Loads and parses a CSS file from disk.">loadFromPath</a>:path <a class="code" href="interface_n_i_stylesheet.html#af95a88b29e53a7695d03fc77e057f131" title="Loads and parses a CSS file from disk.">pathPrefix</a>:pathPrefix <a class="code" href="interface_n_i_stylesheet.html#af95a88b29e53a7695d03fc77e057f131" title="Loads and parses a CSS file from disk.">delegate</a>:nil];
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00161"></a>00161
<a name="l00163"></a><a class="code" href="interface_n_i_stylesheet.html#af95a88b29e53a7695d03fc77e057f131">00163</a> - (BOOL)loadFromPath:(<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a> *)path
<a name="l00164"></a>00164 pathPrefix:(<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a> *)pathPrefix
<a name="l00165"></a>00165 delegate:(<span class="keywordtype">id</span><<a class="code" href="protocol_n_i_c_s_s_parser_delegate-p.html" title="The delegate protocol for NICSSParser.">NICSSParserDelegate</a>>)delegate {
<a name="l00166"></a>00166 BOOL loadDidSucceed = NO;
<a name="l00167"></a>00167
<a name="l00168"></a>00168 @<span class="keyword">synchronized</span>(<span class="keyword">self</span>) {
<a name="l00169"></a>00169 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(_rawRulesets);
<a name="l00170"></a>00170 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(_ruleSets);
<a name="l00171"></a>00171 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(_significantScopeToScopes);
<a name="l00172"></a>00172
<a name="l00173"></a>00173 _ruleSets = [[NSMutableDictionary alloc] init];
<a name="l00174"></a>00174
<a name="l00175"></a>00175 <a class="code" href="interface_n_i_c_s_s_parser.html" title="An Objective-C wrapper for the flex CSS parser.">NICSSParser</a>* parser = [[<a class="code" href="interface_n_i_c_s_s_parser.html" title="An Objective-C wrapper for the flex CSS parser.">NICSSParser</a> alloc] init];
<a name="l00176"></a>00176
<a name="l00177"></a>00177 NSDictionary* results = [parser <a class="code" href="interface_n_i_c_s_s_parser.html#a18ca0240e27097c49922e2dc1db2f2be" title="Reads a CSS file from a given path and returns a dictionary of raw CSS rule sets.">dictionaryForPath</a>:path
<a name="l00178"></a>00178 <a class="code" href="interface_n_i_c_s_s_parser.html#a18ca0240e27097c49922e2dc1db2f2be" title="Reads a CSS file from a given path and returns a dictionary of raw CSS rule sets.">pathPrefix</a>:pathPrefix
<a name="l00179"></a>00179 <a class="code" href="interface_n_i_c_s_s_parser.html#a18ca0240e27097c49922e2dc1db2f2be" title="Reads a CSS file from a given path and returns a dictionary of raw CSS rule sets.">delegate</a>:delegate];
<a name="l00180"></a>00180 <span class="keywordflow">if</span> (nil != results && ![parser didFailToParse]) {
<a name="l00181"></a>00181 _rawRulesets = [results retain];
<a name="l00182"></a>00182 loadDidSucceed = YES;
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(parser);
<a name="l00185"></a>00185
<a name="l00186"></a>00186 <span class="keywordflow">if</span> (loadDidSucceed) {
<a name="l00187"></a>00187 [<span class="keyword">self</span> ruleSetsDidChange];
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="keywordflow">return</span> loadDidSucceed;
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193
<a name="l00194"></a>00194
<a name="l00196"></a><a class="code" href="interface_n_i_stylesheet.html#adc4556a3250618a7d33d7468e5d3d82b">00196</a> - (void)addStylesheet:(<a class="code" href="interface_n_i_stylesheet.html" title="Loads and caches information regarding a specific stylesheet.">NIStylesheet</a> *)stylesheet {
<a name="l00197"></a>00197 NIDASSERT(nil != stylesheet);
<a name="l00198"></a>00198 <span class="keywordflow">if</span> (nil == stylesheet) {
<a name="l00199"></a>00199 <span class="keywordflow">return</span>;
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201
<a name="l00202"></a>00202 @<span class="keyword">synchronized</span>(<span class="keyword">self</span>) {
<a name="l00203"></a>00203 NSMutableDictionary* compositeRuleSets = [<span class="keyword">self</span>.rawRulesets mutableCopy];
<a name="l00204"></a>00204
<a name="l00205"></a>00205 BOOL ruleSetsDidChange = NO;
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="keywordflow">for</span> (<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a>* selector in stylesheet.rawRulesets) {
<a name="l00208"></a>00208 NSDictionary* incomingRuleSet = [stylesheet.rawRulesets objectForKey:selector];
<a name="l00209"></a>00209 NSDictionary* existingRuleSet = [<span class="keyword">self</span>.rawRulesets objectForKey:selector];
<a name="l00210"></a>00210
<a name="l00211"></a>00211 <span class="comment">// Don't bother adding empty rulesets.</span>
<a name="l00212"></a>00212 <span class="keywordflow">if</span> ([incomingRuleSet count] > 0) {
<a name="l00213"></a>00213 ruleSetsDidChange = YES;
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="keywordflow">if</span> (nil == existingRuleSet) {
<a name="l00216"></a>00216 <span class="comment">// There is no rule set of this selector - simply add the new one.</span>
<a name="l00217"></a>00217 [compositeRuleSets setObject:incomingRuleSet forKey:selector];
<a name="l00218"></a>00218 <span class="keywordflow">continue</span>;
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220
<a name="l00221"></a>00221 NSMutableDictionary* compositeRuleSet = [existingRuleSet mutableCopy];
<a name="l00222"></a>00222 <span class="comment">// Add the incoming rule set entries, overwriting any existing ones.</span>
<a name="l00223"></a>00223 [compositeRuleSet addEntriesFromDictionary:incomingRuleSet];
<a name="l00224"></a>00224
<a name="l00225"></a>00225 [compositeRuleSets setObject:compositeRuleSet forKey:selector];
<a name="l00226"></a>00226 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(compositeRuleSet);
<a name="l00227"></a>00227 }
<a name="l00228"></a>00228 }
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(_rawRulesets);
<a name="l00231"></a>00231 _rawRulesets = [compositeRuleSets copy];
<a name="l00232"></a>00232 <a class="code" href="group___preprocessor-_macros.html#ga5d2e99251aeb3ddb687e27f72336e5db" title="Release and assign nil to an object.">NI_RELEASE_SAFELY</a>(compositeRuleSets);
<a name="l00233"></a>00233
<a name="l00234"></a>00234 <span class="keywordflow">if</span> (ruleSetsDidChange) {
<a name="l00235"></a>00235 [<span class="keyword">self</span> ruleSetsDidChange];
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238 }
<a name="l00239"></a>00239
<a name="l00240"></a>00240
<a name="l00243"></a>00243 <span class="preprocessor">#pragma mark Applying Styles to Views</span>
<a name="l00244"></a>00244 <span class="preprocessor"></span>
<a name="l00245"></a>00245
<a name="l00247"></a>00247 - (void)applyRuleSet:(<a class="code" href="interface_n_i_c_s_s_ruleset.html" title="A simple translator from raw CSS rulesets to Objective-C values.">NICSSRuleset</a> *)ruleSet toView:(UIView *)view {
<a name="l00248"></a>00248 <span class="keywordflow">if</span> ([view respondsToSelector:<span class="keyword">@selector</span>(applyStyleWithRuleSet:)]) {
<a name="l00249"></a>00249 [(id<<a class="code" href="protocol_n_i_styleable-p.html" title="The protocol used by the NIStylesheet to apply NICSSRuleSets to views.">NIStyleable</a>>)<a class="code" href="protocol_n_i_styleable-p.html" title="The protocol used by the NIStylesheet to apply NICSSRuleSets to views.">view</a> applyStyleWithRuleSet:ruleSet];
<a name="l00250"></a>00250 }
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252
<a name="l00253"></a>00253
<a name="l00255"></a><a class="code" href="interface_n_i_stylesheet.html#a62b3736dd285a2eb2e60c4c446605c24">00255</a> - (void)applyStyleToView:(UIView *)view withClassName:(<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a> *)className {
<a name="l00256"></a>00256 <a class="code" href="interface_n_i_c_s_s_ruleset.html" title="A simple translator from raw CSS rulesets to Objective-C values.">NICSSRuleset</a> *ruleset = [<span class="keyword">self</span> <a class="code" href="interface_n_i_stylesheet.html#ac25cdc9c8a9b28ea62d222c9d419efcd" title="Returns an autoreleased ruleset for the given class name.">rulesetForClassName</a>:className];
<a name="l00257"></a>00257 <span class="keywordflow">if</span> (nil != ruleset) {
<a name="l00258"></a>00258 [<span class="keyword">self</span> applyRuleSet:ruleset toView:view];
<a name="l00259"></a>00259 }
<a name="l00260"></a>00260 }
<a name="l00261"></a>00261
<a name="l00262"></a>00262
<a name="l00264"></a><a class="code" href="interface_n_i_stylesheet.html#ac25cdc9c8a9b28ea62d222c9d419efcd">00264</a> - (<a class="code" href="interface_n_i_c_s_s_ruleset.html" title="A simple translator from raw CSS rulesets to Objective-C values.">NICSSRuleset</a> *)rulesetForClassName:(<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a> *)className {
<a name="l00265"></a>00265 <a class="code" href="interface_n_i_c_s_s_ruleset.html" title="A simple translator from raw CSS rulesets to Objective-C values.">NICSSRuleset</a>* ruleSet = nil;
<a name="l00266"></a>00266
<a name="l00267"></a>00267 NSArray* selectors = [_significantScopeToScopes objectForKey:className];
<a name="l00268"></a>00268 <span class="keywordflow">if</span> ([selectors count] > 0) {
<a name="l00269"></a>00269 <span class="comment">// Gather all of the rule sets for this view into a composite rule set.</span>
<a name="l00270"></a>00270 ruleSet = [_ruleSets objectForKey:className];
<a name="l00271"></a>00271
<a name="l00272"></a>00272 <span class="keywordflow">if</span> (nil == ruleSet) {
<a name="l00273"></a>00273 ruleSet = [[<a class="code" href="interface_n_i_c_s_s_ruleset.html" title="A simple translator from raw CSS rulesets to Objective-C values.">NICSSRuleset</a> alloc] init];
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="comment">// Composite the rule sets into one.</span>
<a name="l00276"></a>00276 <span class="keywordflow">for</span> (<a class="code" href="class_n_s_string.html" title="For manipulating NSStrings.">NSString</a>* selector in selectors) {
<a name="l00277"></a>00277 [ruleSet <a class="code" href="interface_n_i_c_s_s_ruleset.html#a7918f250ef12324a3e227cb02bbfedf4" title="Adds a raw CSS ruleset to this ruleset object.">addEntriesFromDictionary</a>:[_rawRulesets objectForKey:selector]];
<a name="l00278"></a>00278 }
<a name="l00279"></a>00279
<a name="l00280"></a>00280 NIDASSERT(nil != _ruleSets);
<a name="l00281"></a>00281 [_ruleSets setObject:ruleSet forKey:className];
<a name="l00282"></a>00282 [ruleSet autorelease]; <span class="comment">// We can release the ruleSet because it's retained by the dictionary.</span>
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285
<a name="l00286"></a>00286 <span class="keywordflow">return</span> ruleSet;
<a name="l00287"></a>00287 }
<a name="l00288"></a>00288
<a name="l00289"></a>00289
<a name="l00291"></a>00291 - (NSSet *)<a class="code" href="interface_n_i_stylesheet.html#a8b4cf64369996018bd95328f78aba762" title="A set of NSString filenames for the in this stylesheet.">dependencies</a> {
<a name="l00292"></a>00292 <span class="keywordflow">return</span> [_rawRulesets objectForKey:kDependenciesSelectorKey];
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="keyword">@end</span>
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