1 | /*
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2 | * The MIT License (MIT)
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3 | *
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4 | * Copyright (c) 2015 - present Instructure, Inc.
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5 | *
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6 | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | * of this software and associated documentation files (the "Software"), to deal
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8 | * in the Software without restriction, including without limitation the rights
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9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | * copies of the Software, and to permit persons to whom the Software is
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11 | * furnished to do so, subject to the following conditions:
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12 | *
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13 | * The above copyright notice and this permission notice shall be included in all
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14 | * copies or substantial portions of the Software.
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15 | *
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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22 | * SOFTWARE.
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23 | */
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24 |
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25 | /**
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26 | * ---
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27 | * category: utilities/themes
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28 | * ---
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29 | * @module mirrorShorthand
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30 | */
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31 |
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32 | /**
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33 | * Mirror shorthand CSS properties for bidirectional text
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34 | *
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35 | * Given a string representing a CSS shorthand for edges,
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36 | * swaps the values such that 4 value syntax is RTL instead
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37 | * of LTR.
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38 | *
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39 | * See the following for further reference:
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40 | * https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties
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41 | *
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42 | * @param {String} values - space delimited string values representing a CSS shorthand
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43 | * @returns {String} a space delimited CSS shorthand string converted to RTL
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44 | */
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45 | function mirrorShorthandEdges(values) {
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46 | if (typeof values !== 'string') {
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47 | return;
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48 | }
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49 |
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50 | var valuesArr = values.split(' ');
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51 |
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52 | if (valuesArr.length === 4) {
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53 | // swap the 2nd and 4th values
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54 | ;
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55 | var _ref = [valuesArr[3], valuesArr[1]];
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56 | valuesArr[1] = _ref[0];
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57 | valuesArr[3] = _ref[1];
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58 | }
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59 |
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60 | return valuesArr.join(' ');
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61 | }
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62 | /**
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63 | * Convert shorthand CSS properties for corners to rtl
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64 | *
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65 | * Given a string representing a CSS shorthand for corners,
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66 | * swaps the values such that 2,3 and 4 value syntax is rtl
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67 | * instead of ltr.
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68 | *
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69 | * See the following for further reference:
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70 | * https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties
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71 | *
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72 | * @param {String} values - space delimited string values representing a CSS shorthand
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73 | * @returns {String} a space delimited CSS shorthand string converted to RTL
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74 | */
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75 |
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76 |
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77 | function mirrorShorthandCorners(values) {
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78 | if (typeof values !== 'string') {
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79 | return;
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80 | }
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81 |
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82 | var valuesArr = values.split(' ');
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83 |
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84 | if (valuesArr.length === 2) {
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85 | // swap the 1st and 2nd values
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86 | ;
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87 | var _ref2 = [valuesArr[1], valuesArr[0]];
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88 | valuesArr[0] = _ref2[0];
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89 | valuesArr[1] = _ref2[1];
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90 | }
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91 |
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92 | if (valuesArr.length === 3) {
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93 | // convert 3 value syntax to 4 value syntax
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94 | valuesArr.push(valuesArr[1]);
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95 | }
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96 |
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97 | if (valuesArr.length === 4) {
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98 | ;
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99 | var _ref3 = [valuesArr[1], valuesArr[0], valuesArr[3], valuesArr[2]];
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100 | valuesArr[0] = _ref3[0];
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101 | valuesArr[1] = _ref3[1];
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102 | valuesArr[2] = _ref3[2];
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103 | valuesArr[3] = _ref3[3];
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104 | }
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105 |
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106 | return valuesArr.join(' ');
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107 | }
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108 |
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109 | export { mirrorShorthandEdges, mirrorShorthandCorners }; |
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