Total Complexity | 24 |
Complexity/F | 1.2 |
Lines of Code | 103 |
Function Count | 20 |
Duplicated Lines | 0 |
Ratio | 0 % |
Changes | 0 |
1 | define(['filters/nodefilter'], function (NodeFilter) { |
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2 | 'use strict'; |
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3 | |||
4 | return function () { |
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5 | var targets = []; |
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6 | var filterObservers = []; |
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7 | var filters = []; |
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8 | var filteredData; |
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9 | var data; |
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10 | |||
11 | function remove(d) { |
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12 | targets = targets.filter(function (e) { |
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13 | return d !== e; |
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14 | }); |
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15 | } |
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16 | |||
17 | function add(d) { |
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18 | targets.push(d); |
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19 | |||
20 | if (filteredData !== undefined) { |
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21 | d.setData(filteredData); |
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22 | } |
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23 | } |
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24 | |||
25 | function setData(d) { |
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26 | data = d; |
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27 | refresh(); |
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28 | } |
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29 | |||
30 | function refresh() { |
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31 | if (data === undefined) { |
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32 | return; |
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33 | } |
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34 | |||
35 | var filter = filters.reduce(function (a, f) { |
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36 | return function (d) { |
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37 | return a(d) && f.run(d); |
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38 | }; |
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39 | }, function () { |
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40 | return true; |
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41 | }); |
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42 | |||
43 | filteredData = new NodeFilter(filter)(data); |
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44 | |||
45 | targets.forEach(function (t) { |
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46 | t.setData(filteredData); |
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47 | }); |
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48 | } |
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49 | |||
50 | function notifyObservers() { |
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51 | filterObservers.forEach(function (d) { |
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52 | d.filtersChanged(filters); |
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53 | }); |
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54 | } |
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55 | |||
56 | function addFilter(d) { |
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57 | var newItem = true; |
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58 | |||
59 | filters.forEach(function (f) { |
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60 | if (f.getKey && f.getKey() === d.getKey()) { |
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61 | removeFilter(f); |
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62 | newItem = false; |
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63 | } |
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64 | }); |
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65 | |||
66 | if (newItem) { |
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67 | filters.push(d); |
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68 | notifyObservers(); |
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69 | d.setRefresh(refresh); |
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70 | refresh(); |
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71 | } |
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72 | } |
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73 | |||
74 | function removeFilter(d) { |
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75 | filters = filters.filter(function (e) { |
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76 | return d !== e; |
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77 | }); |
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78 | notifyObservers(); |
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79 | refresh(); |
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80 | } |
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81 | |||
82 | function watchFilters(d) { |
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83 | filterObservers.push(d); |
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84 | |||
85 | d.filtersChanged(filters); |
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86 | |||
87 | return function () { |
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88 | filterObservers = filterObservers.filter(function (e) { |
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89 | return d !== e; |
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90 | }); |
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91 | }; |
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92 | } |
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93 | |||
94 | return { |
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95 | add: add, |
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96 | remove: remove, |
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97 | setData: setData, |
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98 | addFilter: addFilter, |
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99 | removeFilter: removeFilter, |
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100 | watchFilters: watchFilters |
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101 | }; |
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102 | }; |
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103 | }); |
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104 |