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1 // Framework grid generation |
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2 // |
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3 // Used only by Bootstrap to generate the correct number of grid classes given |
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4 // any value of `@grid-columns`. |
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5 |
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6 .make-grid-columns() { |
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7 // Common styles for all sizes of grid columns, widths 1-12 |
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8 .col(@index) { // initial |
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9 @item: ~".col-xs-@{index}, .col-sm-@{index}, .col-md-@{index}, .col-lg-@{index}"; |
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10 .col((@index + 1), @item); |
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11 } |
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12 .col(@index, @list) when (@index =< @grid-columns) { // general; "=<" isn't a typo |
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13 @item: ~".col-xs-@{index}, .col-sm-@{index}, .col-md-@{index}, .col-lg-@{index}"; |
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14 .col((@index + 1), ~"@{list}, @{item}"); |
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15 } |
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16 .col(@index, @list) when (@index > @grid-columns) { // terminal |
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17 @{list} { |
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18 position: relative; |
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19 // Prevent columns from collapsing when empty |
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20 min-height: 1px; |
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21 // Inner gutter via padding |
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22 padding-left: (@grid-gutter-width / 2); |
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23 padding-right: (@grid-gutter-width / 2); |
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24 } |
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25 } |
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26 .col(1); // kickstart it |
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27 } |
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28 |
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29 .float-grid-columns(@class) { |
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30 .col(@index) { // initial |
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31 @item: ~".col-@{class}-@{index}"; |
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32 .col((@index + 1), @item); |
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33 } |
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34 .col(@index, @list) when (@index =< @grid-columns) { // general |
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35 @item: ~".col-@{class}-@{index}"; |
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36 .col((@index + 1), ~"@{list}, @{item}"); |
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37 } |
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38 .col(@index, @list) when (@index > @grid-columns) { // terminal |
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39 @{list} { |
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40 float: left; |
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41 } |
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42 } |
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43 .col(1); // kickstart it |
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44 } |
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45 |
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46 .calc-grid-column(@index, @class, @type) when (@type = width) and (@index > 0) { |
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47 .col-@{class}-@{index} { |
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48 width: percentage((@index / @grid-columns)); |
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49 } |
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50 } |
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51 .calc-grid-column(@index, @class, @type) when (@type = push) and (@index > 0) { |
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52 .col-@{class}-push-@{index} { |
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53 left: percentage((@index / @grid-columns)); |
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54 } |
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55 } |
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56 .calc-grid-column(@index, @class, @type) when (@type = push) and (@index = 0) { |
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57 .col-@{class}-push-0 { |
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58 left: auto; |
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59 } |
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60 } |
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61 .calc-grid-column(@index, @class, @type) when (@type = pull) and (@index > 0) { |
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62 .col-@{class}-pull-@{index} { |
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63 right: percentage((@index / @grid-columns)); |
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64 } |
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65 } |
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66 .calc-grid-column(@index, @class, @type) when (@type = pull) and (@index = 0) { |
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67 .col-@{class}-pull-0 { |
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68 right: auto; |
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69 } |
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70 } |
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71 .calc-grid-column(@index, @class, @type) when (@type = offset) { |
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72 .col-@{class}-offset-@{index} { |
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73 margin-left: percentage((@index / @grid-columns)); |
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74 } |
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75 } |
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76 |
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77 // Basic looping in LESS |
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78 .loop-grid-columns(@index, @class, @type) when (@index >= 0) { |
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79 .calc-grid-column(@index, @class, @type); |
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80 // next iteration |
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81 .loop-grid-columns((@index - 1), @class, @type); |
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82 } |
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83 |
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84 // Create grid for specific class |
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85 .make-grid(@class) { |
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86 .float-grid-columns(@class); |
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87 .loop-grid-columns(@grid-columns, @class, width); |
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88 .loop-grid-columns(@grid-columns, @class, pull); |
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89 .loop-grid-columns(@grid-columns, @class, push); |
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90 .loop-grid-columns(@grid-columns, @class, offset); |
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91 } |