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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="title">NIActions.m</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2011-2014 NimbusKit</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">//</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// limitations under the License.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">//</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#import "NIActions.h"</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#import "NIActions+Subclassing.h"</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#import "NIDebuggingTools.h"</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#if !defined(__has_feature) || !__has_feature(objc_arc)</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"></span><span class="preprocessor">#error "Nimbus requires ARC support."</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">@interface </span><a class="code" href="NIActions.html">NIActions</a> ()</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">@property</span> (nonatomic, strong) NSMutableDictionary* objectToAction;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">@property</span> (nonatomic, strong) NSMutableDictionary* classToAction;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">@property</span> (nonatomic, strong) NSMutableSet* objectSet;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">@end</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">@implementation </span><a class="code" href="NIActions.html">NIActions</a></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="Actions.html#ginitWithTarget:"> 36</a></span> - (id)initWithTarget:(<span class="keywordtype">id</span>)target {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">if</span> ((<span class="keyword">self</span> = [super init])) {</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  _target = target;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  _objectToAction = [[NSMutableDictionary alloc] init];</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  _classToAction = [[NSMutableDictionary alloc] init];</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  _objectSet = [[NSMutableSet alloc] init];</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  }</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> <span class="keyword">self</span>;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> }</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> - (id)init {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> [<span class="keyword">self</span> initWithTarget:nil];</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#pragma mark - Private</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> - (id)keyForObject:(<span class="keywordtype">id</span><NSObject>)object {</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> @(<span class="keywordtype">object</span>.hash);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment">//</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// actionForObject: and actionForClass: are used when attaching actions to objects and classes and</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// will always return an NIObjectActions object. These methods should not be used for determining</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment">// whether an action is attached to a given object or class.</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">//</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">// actionForObjectOrClassOfObject: determines whether an action has been attached to an object</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// or class of object and then returns the NIObjectActions or nil if no actions have been attached.</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment">//</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// Retrieves an NIObjectActions object for the given object or creates one if it doesn't yet exist</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// so that actions may be attached.</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> - (NIObjectActions *)actionForObject:(<span class="keywordtype">id</span><NSObject>)object {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">id</span> key = [<span class="keyword">self</span> keyForObject:object];</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  NIObjectActions* action = [<span class="keyword">self</span>.objectToAction objectForKey:key];</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">if</span> (nil == action) {</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  action = [[NIObjectActions alloc] init];</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  [<span class="keyword">self</span>.objectToAction setObject:action forKey:key];</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> action;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> }</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// Retrieves an NIObjectActions object for the given class or creates one if it doesn't yet exist</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">// so that actions may be attached.</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> - (NIObjectActions *)actionForClass:(Class)class {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  NIObjectActions* action = [<span class="keyword">self</span>.classToAction objectForKey:class];</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">if</span> (nil == action) {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  action = [[NIObjectActions alloc] init];</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  [<span class="keyword">self</span>.classToAction setObject:action forKey:(id<NSCopying>)class];</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> action;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// Fetches any attached actions for a given object.</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> - (NIObjectActions *)actionForObjectOrClassOfObject:(<span class="keywordtype">id</span><NSObject>)object {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordtype">id</span> key = [<span class="keyword">self</span> keyForObject:object];</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  NIObjectActions* action = [<span class="keyword">self</span>.objectToAction objectForKey:key];</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (nil == action) {</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  action = [<span class="keyword">self</span>.class objectFromKeyClass:object.class map:self.classToAction];</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> action;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#pragma mark - Public</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="Actions.html#gattachToObject:tapBlock:"> 101</a></span> - (id)attachToObject:(<span class="keywordtype">id</span><NSObject>)object tapBlock:(<a class="code" href="Actions.html#gNIActionBlock">NIActionBlock</a>)action {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  [<span class="keyword">self</span>.objectSet addObject:object];</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  [<span class="keyword">self</span> actionForObject:object].tapAction = action;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> object;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> }</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="Actions.html#gattachToObject:detailBlock:"> 107</a></span> - (id)attachToObject:(<span class="keywordtype">id</span><NSObject>)object detailBlock:(<a class="code" href="Actions.html#gNIActionBlock">NIActionBlock</a>)action {</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  [<span class="keyword">self</span>.objectSet addObject:object];</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  [<span class="keyword">self</span> actionForObject:object].detailAction = action;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">return</span> object;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> }</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="Actions.html#gattachToObject:navigationBlock:"> 113</a></span> - (id)attachToObject:(<span class="keywordtype">id</span><NSObject>)object navigationBlock:(<a class="code" href="Actions.html#gNIActionBlock">NIActionBlock</a>)action {</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  [<span class="keyword">self</span>.objectSet addObject:object];</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  [<span class="keyword">self</span> actionForObject:object].navigateAction = action;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> object;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="Actions.html#gattachToObject:tapSelector:"> 119</a></span> - (id)attachToObject:(<span class="keywordtype">id</span><NSObject>)object tapSelector:(<span class="keywordtype">SEL</span>)selector {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  [<span class="keyword">self</span>.objectSet addObject:object];</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  [<span class="keyword">self</span> actionForObject:object].tapSelector = selector;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> object;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> }</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="Actions.html#gattachToObject:detailSelector:"> 125</a></span> - (id)attachToObject:(<span class="keywordtype">id</span><NSObject>)object detailSelector:(<span class="keywordtype">SEL</span>)selector {</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  [<span class="keyword">self</span>.objectSet addObject:object];</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  [<span class="keyword">self</span> actionForObject:object].detailSelector = selector;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">return</span> object;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> }</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="Actions.html#gattachToObject:navigationSelector:"> 131</a></span> - (id)attachToObject:(<span class="keywordtype">id</span><NSObject>)object navigationSelector:(<span class="keywordtype">SEL</span>)selector {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  [<span class="keyword">self</span>.objectSet addObject:object];</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  [<span class="keyword">self</span> actionForObject:object].navigateSelector = selector;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">return</span> object;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> }</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="Actions.html#gattachToClass:tapBlock:"> 137</a></span> - (void)attachToClass:(Class)aClass tapBlock:(<a class="code" href="Actions.html#gNIActionBlock">NIActionBlock</a>)action {</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  [<span class="keyword">self</span> actionForClass:aClass].tapAction = action;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> }</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="Actions.html#gattachToClass:detailBlock:"> 141</a></span> - (void)attachToClass:(Class)aClass detailBlock:(<a class="code" href="Actions.html#gNIActionBlock">NIActionBlock</a>)action {</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  [<span class="keyword">self</span> actionForClass:aClass].detailAction = action;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div>
<div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="Actions.html#gattachToClass:navigationBlock:"> 145</a></span> - (void)attachToClass:(Class)aClass navigationBlock:(<a class="code" href="Actions.html#gNIActionBlock">NIActionBlock</a>)action {</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  [<span class="keyword">self</span> actionForClass:aClass].navigateAction = action;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> }</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="Actions.html#gattachToClass:tapSelector:"> 149</a></span> - (void)attachToClass:(Class)aClass tapSelector:(<span class="keywordtype">SEL</span>)selector {</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  [<span class="keyword">self</span> actionForClass:aClass].tapSelector = selector;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> }</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a name="l00153"></a><span class="lineno"><a class="line" href="Actions.html#gattachToClass:detailSelector:"> 153</a></span> - (void)attachToClass:(Class)aClass detailSelector:(<span class="keywordtype">SEL</span>)selector {</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  [<span class="keyword">self</span> actionForClass:aClass].detailSelector = selector;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
<div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="Actions.html#gattachToClass:navigationSelector:"> 157</a></span> - (void)attachToClass:(Class)aClass navigationSelector:(<span class="keywordtype">SEL</span>)selector {</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  [<span class="keyword">self</span> actionForClass:aClass].navigateSelector = selector;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> }</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div>
<div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="Actions.html#gisObjectActionable:"> 161</a></span> - (BOOL)isObjectActionable:(<span class="keywordtype">id</span><NSObject>)object {</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (nil == <span class="keywordtype">object</span>) {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> NO;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  BOOL objectIsActionable = [<span class="keyword">self</span>.objectSet containsObject:object];</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (!objectIsActionable) {</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  objectIsActionable = (nil != [<span class="keyword">self</span>.class <a class="code" href="Actions.html#gobjectFromKeyClass:map:">objectFromKeyClass</a>:object.class <a class="code" href="Actions.html#gobjectFromKeyClass:map:">map</a>:self.classToAction]);</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">return</span> objectIsActionable;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> }</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div>
<div class="line"><a name="l00173"></a><span class="lineno"><a class="line" href="Actions.html#gobjectFromKeyClass:map:"> 173</a></span> + (id)objectFromKeyClass:(Class)keyClass map:(NSMutableDictionary *)map {</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordtype">id</span> <span class="keywordtype">object</span> = [map objectForKey:keyClass];</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (nil == <span class="keywordtype">object</span>) {</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// No mapping found for this key class, but it may be a subclass of another object that does</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="comment">// have a mapping, so let's see what we can find.</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  Class superClass = nil;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">for</span> (Class <span class="keyword">class</span> in map.allKeys) {</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// We want to find the lowest node in the class hierarchy so that we pick the lowest ancestor</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// in the hierarchy tree.</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">if</span> ([keyClass isSubclassOfClass:<span class="keyword">class</span>]</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  && (nil == superClass || [keyClass isSubclassOfClass:superClass])) {</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  superClass = <span class="keyword">class</span>;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> (nil != superClass) {</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">object</span> = [map objectForKey:superClass];</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="comment">// Add this subclass to the map so that next time this result is instant.</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  [map setObject:object forKey:(id<NSCopying>)keyClass];</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  }</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  }</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (nil == <span class="keywordtype">object</span>) {</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// We couldn't find a mapping at all so let's add an empty mapping.</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  [map setObject:[NSNull class] forKey:(id<NSCopying>)keyClass];</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<span class="keywordtype">object</span> == [NSNull <span class="keyword">class</span>]) {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// Don't return null mappings.</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordtype">object</span> = nil;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">return</span> object;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> }</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="keyword">@end</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="keyword">@implementation </span>NIObjectActions</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">@end</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div>
<div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="Actions.html#gNIPushControllerAction"> 214</a></span> <a class="code" href="Actions.html#gNIActionBlock">NIActionBlock</a> <a class="code" href="Actions.html#gNIPushControllerAction">NIPushControllerAction</a>(Class controllerClass) {</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">return</span> <span class="comment">// You must initialize the actions object with initWithTarget: and pass a valid</span><span class="comment">// controller.</span><span class="comment">// No navigation controller to push this new controller; this controller</span><span class="comment">// is going to be lost.</span>[^(id object, id target, NSIndexPath* indexPath) {</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  </div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  NIDASSERT(nil != target);</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  NIDASSERT([target isKindOfClass:[UIViewController class]]);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  UIViewController *controller = target;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  if (nil != controller && [controller isKindOfClass:[UIViewController class]]) {</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  </div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  </div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  NIDASSERT(nil != controller.navigationController);</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  UIViewController* controllerToPush = [[controllerClass alloc] init];</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  [controller.navigationController pushViewController:controllerToPush</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  animated:YES];</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  return NO;</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  } copy];</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> }</div>
<div class="ttc" id="Actions_html_gNIPushControllerAction"><div class="ttname"><a href="Actions.html#gNIPushControllerAction">NIPushControllerAction</a></div><div class="ttdeci">NIActionBlock NIPushControllerAction(Class controllerClass)</div><div class="ttdoc">Returns a block that pushes an instance of the controllerClass onto the navigation stack...</div><div class="ttdef"><b>Definition:</b> <a href="NIActions_8m_source.html#l00214">NIActions.m:214</a></div></div>
<div class="ttc" id="NIActions_html"><div class="ttname"><a href="NIActions.html">NIActions</a></div><div class="ttdoc">The NIActions class provides a generic interface for attaching actions to objects. </div><div class="ttdef"><b>Definition:</b> <a href="NIActions_8h_source.html#l00082">NIActions.h:82</a></div></div>
<div class="ttc" id="Actions_html_gNIActionBlock"><div class="ttname"><a href="Actions.html#gNIActionBlock">NIActionBlock</a></div><div class="ttdeci">BOOL(^ NIActionBlock)(id object, id target, NSIndexPath *indexPath)</div><div class="ttdef"><b>Definition:</b> <a href="NIActions_8h_source.html#l00032">NIActions.h:32</a></div></div>
<div class="ttc" id="Actions_html_gobjectFromKeyClass:map:"><div class="ttname"><a href="Actions.html#gobjectFromKeyClass:map:">+[NIActions objectFromKeyClass:map:]</a></div><div class="ttdeci">id objectFromKeyClass:map:(Class keyClass,[map] NSMutableDictionary *map)</div><div class="ttdoc">Returns a mapped object from the given key class. </div><div class="ttdef"><b>Definition:</b> <a href="NIActions_8m_source.html#l00173">NIActions.m:173</a></div></div>
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