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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 class="title">NILauncherViewModel.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 "NILauncherViewModel.h"</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#import "NILauncherView.h"</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#import "NILauncherViewObject.h"</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#import "NimbusCore.h"</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#if !defined(__has_feature) || !__has_feature(objc_arc)</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#error "Nimbus requires ARC support."</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">@interface </span><a class="code" href="NILauncherViewModel.html">NILauncherViewModel</a>()</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">@property</span> (nonatomic, strong) NSMutableArray* pages;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">@end</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">@implementation </span><a class="code" href="NILauncherViewModel.html">NILauncherViewModel</a></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</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> </div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="NILauncherViewModel.html#initWithArrayOfPages:delegate:"> 35</a></span> - (id)initWithArrayOfPages:(NSArray *)pages delegate:(<span class="keywordtype">id</span><<a class="code" href="NILauncherViewModelDelegate-Protocol.html">NILauncherViewModelDelegate</a>>)delegate {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">if</span> ((<span class="keyword">self</span> = [super init])) {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">// Make the entire pages array mutable.</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  NSMutableArray* mutablePages = [NSMutableArray arrayWithCapacity:pages.count];</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">for</span> (NSArray* subArray in pages) {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// You must add an array of arrays.</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  NIDASSERT([subArray isKindOfClass:[NSArray <span class="keyword">class</span>]]);</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  [mutablePages addObject:[subArray mutableCopy]];</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">self</span>.pages = mutablePages;</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>  _delegate = delegate;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> <span class="keyword">self</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> </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> - (NSMutableArray *)_pageAtIndex:(NSInteger)pageIndex {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  NIDASSERT(<span class="keyword">self</span>.pages.count > pageIndex && pageIndex >= 0);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> [<span class="keyword">self</span>.pages objectAtIndex:pageIndex];</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"><a class="line" href="NILauncherViewModel.html#appendPage:"> 57</a></span> - (void)appendPage:(NSArray *)page {</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  [<span class="keyword">self</span>.pages addObject:[page mutableCopy]];</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> }</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="NILauncherViewModel.html#appendObject:toPage:"> 61</a></span> - (void)appendObject:(<span class="keywordtype">id</span><<a class="code" href="NILauncherViewObject.html">NILauncherViewObject</a>>)object toPage:(NSInteger)pageIndex {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  NSAssert(<span class="keyword">self</span>.pages.count > pageIndex && pageIndex >= 0, <span class="stringliteral">@"Page index is out of bounds."</span>);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  [[<span class="keyword">self</span> _pageAtIndex:pageIndex] addObject:object];</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> </div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="NILauncherViewModel.html#objectAtIndex:pageIndex:"> 67</a></span> - (id<<a class="code" href="NILauncherViewObject.html">NILauncherViewObject</a>>)objectAtIndex:(NSInteger)index pageIndex:(NSInteger)pageIndex {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  NSAssert(<span class="keyword">self</span>.pages.count > pageIndex && pageIndex >= 0, <span class="stringliteral">@"Page index is out of bounds."</span>);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  NSArray* objects = [<span class="keyword">self</span> _pageAtIndex:pageIndex];</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  NSAssert(objects.count > index && index >= 0, <span class="stringliteral">@"Index is out of bounds."</span>);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> [objects objectAtIndex:index];</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> </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#pragma mark NSCoding</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> - (void)encodeWithCoder:(NSCoder *)coder {</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  NSUInteger numberOfPages = <span class="keyword">self</span>.pages.count;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  [coder encodeValueOfObjCType:@encode(NSUInteger) at:&numberOfPages];</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">for</span> (NSArray* page in <span class="keyword">self</span>.pages) {</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  NSUInteger numberOfObjects = page.count;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  [coder encodeValueOfObjCType:@encode(NSUInteger) at:&numberOfObjects];</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">for</span> (<span class="keywordtype">id</span> <span class="keywordtype">object</span> in page) {</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// The object must conform to NSCoding in order to be encoded.</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  NIDASSERT([<span class="keywordtype">object</span> conformsToProtocol:<span class="keyword">@protocol</span>(NSCoding)]);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  [coder encodeObject:object];</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> - (id)initWithCoder:(NSCoder *)decoder {</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">if</span> ((<span class="keyword">self</span> = [super init])) {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  NSUInteger numberOfPages = 0;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  [decoder decodeValueOfObjCType:@encode(NSUInteger) at:&numberOfPages];</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  NSMutableArray* pages = [NSMutableArray arrayWithCapacity:numberOfPages];</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">for</span> (NSUInteger ixPage = 0; ixPage < numberOfPages; ++ixPage) {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  NSUInteger numberOfObjects = 0;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  [decoder decodeValueOfObjCType:@encode(NSUInteger) at:&numberOfObjects];</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  NSMutableArray* objects = [NSMutableArray arrayWithCapacity:numberOfObjects];</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">for</span> (NSUInteger ixObject = 0; ixObject < numberOfObjects; ++ixObject) {</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  [objects addObject:[decoder decodeObject]];</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  [pages addObject:objects];</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</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>  _pages = pages;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">return</span> <span class="keyword">self</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor">#pragma mark - NILauncherDataSource</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> - (NSInteger)numberOfPagesInLauncherView:(<a class="code" href="NILauncherView.html">NILauncherView</a> *)launcherView {</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">return</span> <span class="keyword">self</span>.pages.count;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> }</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> - (NSInteger)launcherView:(<a class="code" href="NILauncherView.html">NILauncherView</a> *)launcherView numberOfButtonsInPage:(NSInteger)page {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> [[<span class="keyword">self</span>.pages objectAtIndex:page] count];</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> }</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> - (UIView<<a class="code" href="NILauncherButtonView.html">NILauncherButtonView</a>> *)launcherView:(<a class="code" href="NILauncherView.html">NILauncherView</a> *)launcherView buttonViewForPage:(NSInteger)page atIndex:(NSInteger)index {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  id<NILauncherViewObject> <span class="keywordtype">object</span> = [<span class="keyword">self</span> objectAtIndex:index pageIndex:page];</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  Class buttonViewClass = <span class="keywordtype">object</span>.buttonViewClass;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// You must provide a button view class.</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  NIDASSERT(nil != buttonViewClass);</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  NSString* reuseIdentifier = NSStringFromClass(buttonViewClass);</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  UIView<NILauncherButtonView>* buttonView = [launcherView <a class="code" href="NILauncherView.html#dequeueReusableViewWithIdentifier:">dequeueReusableViewWithIdentifier</a>:reuseIdentifier];</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">if</span> (nil == buttonView) {</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  buttonView = [[buttonViewClass alloc] initWithReuseIdentifier:reuseIdentifier];</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// Give the button view a chance to update itself.</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> ([buttonView respondsToSelector:<span class="keyword">@selector</span>(shouldUpdateViewWithObject:)]) {</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  [buttonView performSelector:@selector(shouldUpdateViewWithObject:) withObject:object];</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// Give the delegate a chance to customize this button.</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  [<span class="keyword">self</span>.delegate launcherViewModel:self</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  configureButtonView:buttonView</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  forLauncherView:launcherView</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  pageIndex:page</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  buttonIndex:index</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  object:object];</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  </div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">return</span> buttonView;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> }</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">@end</span></div>
<div class="ttc" id="NILauncherViewModelDelegate-Protocol_html"><div class="ttname"><a href="NILauncherViewModelDelegate-Protocol.html">NILauncherViewModelDelegate-p</a></div><div class="ttdoc">The delegate for NILauncherViewModel. </div><div class="ttdef"><b>Definition:</b> <a href="NILauncherViewModel_8h_source.html#l00052">NILauncherViewModel.h:52</a></div></div>
<div class="ttc" id="NILauncherViewModel_html"><div class="ttname"><a href="NILauncherViewModel.html">NILauncherViewModel</a></div><div class="ttdoc">A launcher view model that complies to the NILauncherDataSource protocol. </div><div class="ttdef"><b>Definition:</b> <a href="NILauncherViewModel_8h_source.html#l00031">NILauncherViewModel.h:31</a></div></div>
<div class="ttc" id="NILauncherView_html_dequeueReusableViewWithIdentifier:"><div class="ttname"><a href="NILauncherView.html#dequeueReusableViewWithIdentifier:">-[NILauncherView dequeueReusableViewWithIdentifier:]</a></div><div class="ttdeci">UIView< NILauncherButtonView > * dequeueReusableViewWithIdentifier:(NSString *identifier)</div><div class="ttdoc">Returns a reusable launcher button view object located by its identifier. </div><div class="ttdef"><b>Definition:</b> <a href="NILauncherView_8m_source.html#l00316">NILauncherView.m:316</a></div></div>
<div class="ttc" id="NILauncherView_html"><div class="ttname"><a href="NILauncherView.html">NILauncherView</a></div><div class="ttdoc">A launcher view that simulates iOS' home screen launcher functionality. </div><div class="ttdef"><b>Definition:</b> <a href="NILauncherView_8h_source.html#l00038">NILauncherView.h:38</a></div></div>
<div class="ttc" id="NILauncherViewObject_html"><div class="ttname"><a href="NILauncherViewObject.html">NILauncherViewObject</a></div><div class="ttdoc">An implementation of the NILauncherViewObject protocol. </div><div class="ttdef"><b>Definition:</b> <a href="NILauncherViewObject_8h_source.html#l00024">NILauncherViewObject.h:24</a></div></div>
<div class="ttc" id="NILauncherButtonView_html"><div class="ttname"><a href="NILauncherButtonView.html">NILauncherButtonView</a></div><div class="ttdoc">A launcher button view that displays an image and and a label beneath it. </div><div class="ttdef"><b>Definition:</b> <a href="NILauncherButtonView_8h_source.html#l00031">NILauncherButtonView.h:31</a></div></div>
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