Mercurial > gemma
annotate client/src/components/TimeSlider.vue @ 5082:c4ebb6ccc588 time-sliding
client: start a request for the last changed time on time slider
* initiate a refresh layers request when the time for the
finished request differs from the selected time on time slider
author | Fadi Abbud <fadi.abbud@intevation.de> |
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date | Wed, 18 Mar 2020 14:11:44 +0100 |
parents | faa1521e597b |
children | 5ec30f63fd58 |
rev | line source |
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1 <template> |
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2 <div |
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3 id="slider" |
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4 :class="[ |
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5 'd-flex box ui-element rounded bg-white flex-row', |
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6 { expanded: showTimeSlider } |
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7 ]" |
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8 :style="reposition" |
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9 > |
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10 <div id="timeselection" class="d-flex mt-1 mr-1"> |
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11 <input |
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12 class="form-control-sm mr-1" |
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13 type="date" |
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14 v-model="dateSelection" |
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15 min="2015-01-01" |
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16 :max="new Date().toISOString().split('T')[0]" |
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17 required |
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18 /> |
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19 <input |
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20 type="time" |
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21 min="00:00" |
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22 max="23:59" |
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23 v-model="timeSelection" |
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24 class="form-control-sm" |
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25 required |
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26 /> |
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27 </div> |
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28 <div |
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29 id="sliderContainer" |
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30 class="d-flex sliderContainer" |
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31 style="width: 98%;" |
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32 ></div> |
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33 <div |
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34 id="closebutton" |
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35 @click="close" |
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36 class="d-flex box-control mr-0" |
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37 style="width: 2%;" |
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38 > |
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39 <font-awesome-icon icon="times"></font-awesome-icon> |
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40 </div> |
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41 </div> |
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42 </template> |
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43 <style lang="scss" scoped> |
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44 #slider { |
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45 position: absolute; |
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46 bottom: 0; |
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47 min-width: 100vw; |
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48 } |
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49 #slider.expanded { |
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50 max-height: 100%; |
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51 max-width: 100%; |
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52 margin: 0; |
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53 } |
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54 input::-webkit-clear-button { |
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55 display: none; |
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56 } |
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57 // hide clear button on IE |
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58 input::-ms-clear { |
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59 display: none; |
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60 } |
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61 </style> |
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62 <script> |
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63 /* This is Free Software under GNU Affero General Public License v >= 3.0 |
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64 * without warranty, see README.md and license for details. |
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65 * |
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66 * SPDX-License-Identifier: AGPL-3.0-or-later |
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67 * License-Filename: LICENSES/AGPL-3.0.txt |
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68 * |
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69 * Copyright (C) 2020 by via donau |
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70 * – Österreichische Wasserstraßen-Gesellschaft mbH |
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71 * Software engineering by Intevation GmbH |
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72 * |
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73 * Author(s): |
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74 * Fadi Abbud <fadiabbud@intevation.de> |
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75 */ |
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76 import { mapState } from "vuex"; |
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77 import * as d3 from "d3"; |
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78 import app from "@/main"; |
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79 import { localeDateString } from "@/lib/datelocalization"; |
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80 import { format, setHours, setMinutes, compareAsc } from "date-fns"; |
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81 import debounce from "debounce"; |
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82 |
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83 let zoom = null; |
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84 let xScale = null; |
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85 let xAxis = null; |
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86 let currentScaleFactor = 1; |
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87 |
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88 export default { |
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89 name: "timeslider", |
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90 data() { |
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91 return { |
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92 isSelectedTimeHourly: false, |
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93 resizeListenerFunction: null |
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94 }; |
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95 }, |
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96 watch: { |
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97 ongoingRefresh() { |
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98 if (this.ongoingRefresh) return; |
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99 this.$store.commit("application/setSelectedTime", new Date()); |
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100 this.$nextTick(this.rescaleSlider(1)); |
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101 }, |
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102 ongoingTimeSlide() { |
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103 if (this.ongoingTimeSlide) return; |
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104 this.$store.commit( |
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105 "application/setCurrentVisibleTime", |
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106 this.selectedTime |
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107 ); |
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108 }, |
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109 selectedTime() { |
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110 this.triggerMapReload(); |
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111 }, |
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112 sourcesLoading() { |
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113 // initiate refresh layers request if the time for the finished request |
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114 // differs from the selected time on time slider |
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115 if (this.sourcesLoading !== 0) return; |
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116 if (compareAsc(this.selectedTime, this.currentVisibleTime) === 0) return; |
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117 this.refreshLayers(); |
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118 } |
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119 }, |
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120 computed: { |
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121 ...mapState("application", [ |
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122 "showTimeSlider", |
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123 "paneSetup", |
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124 "currentVisibleTime" |
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125 ]), |
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126 ...mapState("map", [ |
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127 "ongoingRefresh", |
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128 "ongoingTimeSlide", |
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129 "openLayersMaps" |
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130 ]), |
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131 reposition() { |
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132 // reposition time slider in case of opened diagram |
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133 if (["DEFAULT", "COMPARESURVEYS"].indexOf(this.paneSetup) === -1) { |
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134 const height = document.getElementById("main").clientHeight + 1; |
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135 return `bottom: ${height}px`; |
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136 } else { |
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137 return ""; |
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138 } |
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139 }, |
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140 dateSelection: { |
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141 get() { |
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142 const date = this.$store.state.application.selectedTime; |
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143 return format(date, "YYYY-MM-DD"); |
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144 }, |
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145 set(value) { |
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146 if (!value) return; |
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147 let date = new Date(value); |
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148 const [hours, minutes] = this.timeSelection.split(":"); |
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149 date = setHours(date, hours); |
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150 date = setMinutes(date, minutes); |
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151 this.$store.commit("application/setSelectedTime", date); |
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152 this.rescaleSlider(50); |
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153 } |
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154 }, |
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155 timeSelection: { |
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156 get() { |
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157 const time = this.$store.state.application.selectedTime; |
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158 return format(time, "HH:mm"); |
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159 }, |
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160 set(value) { |
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161 if (!value) return; |
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162 let date = this.selectedTime; |
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163 date = setHours(date, value.split(":")[0]); |
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164 date = setMinutes(date, value.split(":")[1]); |
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165 this.$store.commit("application/setSelectedTime", date); |
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166 this.rescaleSlider(800); |
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167 } |
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168 }, |
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169 selectedTime: { |
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170 get() { |
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171 return this.$store.state.application.selectedTime; |
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172 }, |
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173 set(value) { |
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174 if (!this.isSelectedTimeHourly) { |
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175 value = setHours(value, 12); |
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176 value = setMinutes(value, 0); |
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177 } |
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178 this.$store.commit("application/setSelectedTime", value); |
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179 } |
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180 }, |
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181 sourcesLoading() { |
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182 let counter = 0; |
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183 this.openLayersMaps.forEach(map => { |
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184 let layers = map.getLayers().getArray(); |
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185 for (let i = 0; i < layers.length; i++) { |
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186 if (layers[i].getSource().loading) counter++; |
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187 } |
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188 }); |
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189 return counter; |
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190 } |
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191 }, |
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192 methods: { |
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193 close() { |
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194 this.$store.commit("application/showTimeSlider", false); |
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195 }, |
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196 refreshLayers() { |
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197 this.$store.commit("map/startTimeSlide"); |
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198 this.$store.dispatch("map/refreshLayers"); |
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199 this.$nextTick(() => { |
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200 this.$store.commit("map/finishTimeSlide"); |
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201 }); |
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202 }, |
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203 triggerMapReload() { |
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204 // trigger refresh layers only when last loading of layers was ended |
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205 if (this.sourcesLoading) { |
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206 return; |
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207 } |
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208 this.refreshLayers(); |
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209 }, |
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210 rescaleSlider(scaleFactor) { |
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211 const tx = |
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212 -scaleFactor * |
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213 this.getScale()(d3.isoParse(this.selectedTime.toISOString())) + |
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214 document.getElementById("sliderContainer").clientWidth / 2; |
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215 var t = d3.zoomIdentity.translate(tx, 0).scale(scaleFactor); |
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216 this.getScale().domain(t.rescaleX(this.getScale())); |
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217 d3.select(".zoom").call(zoom.transform, t); |
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218 }, |
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219 createSlider() { |
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220 const element = document.getElementById("sliderContainer"); |
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221 const svgWidth = element ? element.clientWidth : 0, |
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222 svgHeight = 40, |
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223 marginTop = 20, |
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224 marginLeft = 0; |
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225 |
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226 d3.timeFormatDefaultLocale(localeDateString); |
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227 xScale = this.getScale(); |
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228 xAxis = this.getAxes(); |
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229 let svg = d3 |
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230 .select(".sliderContainer") |
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231 .append("svg") |
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232 .attr("width", svgWidth) |
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233 .attr("height", svgHeight); |
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234 |
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235 zoom = d3 |
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236 .zoom() |
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237 .scaleExtent([0.8, 102000]) |
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238 .translateExtent([[0, 0], [svgWidth, svgHeight]]) |
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239 .extent([[0, 0], [(svgWidth, svgHeight)]]) |
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240 .on("zoom", this.zoomed); |
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241 |
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242 svg |
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243 .append("g") |
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244 .attr("class", "axis--x") |
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245 .attr("transform", `translate(${marginLeft}, ${marginTop})`) |
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246 .call(xAxis); |
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247 |
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248 // create rectanlge on the slider area to capture mouse events |
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249 const eventRect = svg |
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250 .append("rect") |
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251 .attr("id", "zoom") |
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252 .attr("class", "zoom") |
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253 .attr("width", svgWidth) |
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254 .attr("height", svgHeight) |
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255 .attr("fill", "white") |
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256 .attr("opacity", 0.2) |
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257 .on("mouseover", () => { |
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258 svg.select(".zoom").attr("cursor", "move"); |
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259 }); |
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260 eventRect.call(zoom).on("click", this.onClick); |
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261 |
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262 const toIsoDate = d => { |
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263 return d.toISOString(); |
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264 }; |
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265 |
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266 let drag = d3 |
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267 .drag() |
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268 .on("start", () => { |
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269 d3.select(".line") |
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270 .raise() |
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271 .classed("active", true); |
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272 }) |
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273 .on("drag", this.onDrag) |
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274 .on("end", () => { |
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275 d3.select(".line").classed("active", false); |
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276 }); |
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277 |
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278 // Create cursor to indicate to the selected time |
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279 svg |
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280 .append("rect") |
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281 .attr("class", "line") |
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282 .attr("id", "scrubber") |
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283 .attr("x", xAxis.scale()(d3.isoParse(toIsoDate(this.selectedTime)))) |
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284 .attr("y", 0) |
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285 .attr("width", 2) |
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286 .attr("height", svgHeight) |
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287 .attr("stroke", "#17a2b8") |
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288 .attr("stroke-width", 2) |
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289 .attr("opacity", 0.6) |
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290 .on("mouseover", () => { |
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291 svg.select(".line").attr("cursor", "e-resize"); |
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292 }) |
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293 .call(drag); |
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294 }, |
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295 getScale() { |
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296 return d3 |
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297 .scaleTime() |
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298 .range([0, document.getElementById("sliderContainer").clientWidth || 0]) |
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299 .domain([d3.isoParse(new Date("2015-01-01")), d3.isoParse(new Date())]); |
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300 }, |
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301 getAxes() { |
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302 const axesFormat = date => { |
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303 return (d3.timeSecond(date) < date |
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304 ? d3.timeFormat(".%L") |
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305 : d3.timeMinute(date) < date |
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306 ? d3.timeFormat(":%S") |
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307 : d3.timeHour(date) < date |
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308 ? d3.timeFormat("%H:%M") |
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309 : d3.timeDay(date) < date |
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310 ? d3.timeFormat("%H:%M") |
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311 : d3.timeMonth(date) < date |
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312 ? d3.timeWeek(date) < date |
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313 ? d3.timeFormat(app.$gettext("%a %d")) |
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314 : d3.timeFormat(app.$gettext("%b %d")) |
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315 : d3.timeYear(date) < date |
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316 ? d3.timeFormat("%B") |
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317 : d3.timeFormat("%Y"))(date); |
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318 }; |
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|
319 return d3 |
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320 .axisBottom(xScale) |
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321 .ticks(12) |
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322 .tickFormat(axesFormat); |
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323 }, |
5036
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324 zoomed() { |
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325 let newX = d3.event.transform.rescaleX(xScale); |
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326 currentScaleFactor = d3.event.transform.k; |
5062
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5061
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327 const isHourly = currentScaleFactor > 400; |
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328 if (this.isSelectedTimeHourly != isHourly) |
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329 this.isSelectedTimeHourly = isHourly; |
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330 xAxis.scale(newX); |
5061
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331 d3.select(".axis--x").call(xAxis); |
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332 d3.select(".line").attr("x", newX(d3.isoParse(this.selectedTime))); |
5036
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|
333 }, |
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|
334 onClick() { |
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|
335 // Extract the click location |
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336 let point = d3.mouse(document.getElementById("zoom")), |
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337 p = { x: point[0], y: point[1] }; |
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|
338 d3.select(".line").attr("x", p.x); |
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339 this.selectedTime = d3.isoParse(xAxis.scale().invert(p.x + 2)); |
5036
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|
340 }, |
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341 onDrag() { |
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342 this.selectedTime = d3.isoParse(xAxis.scale().invert(d3.event.x + 2)); |
5036
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343 d3.select(".line").attr("x", d3.event.x); |
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5070
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|
344 }, |
5072
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Timeslider proper rescale
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5071
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|
345 redrawTimeSlider() { |
5071
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346 const bodyWidth = document.querySelector("body").clientWidth; |
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347 const timeSelectionWidth = document.querySelector("#timeselection") |
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348 .clientWidth; |
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349 const closeButton = document.querySelector("#closebutton").clientWidth; |
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350 const svgWidth = bodyWidth - timeSelectionWidth - closeButton; |
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|
351 document |
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|
352 .querySelector(".sliderContainer svg") |
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|
353 .setAttribute("width", svgWidth); |
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354 xScale.range([0, svgWidth]); |
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355 xAxis.scale(xScale); |
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356 d3.select(".axis--x").call(xAxis); |
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357 d3.select(".line").attr( |
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358 "x", |
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359 xAxis.scale()(d3.isoParse(this.selectedTime)) |
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360 ); |
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361 this.rescaleSlider(currentScaleFactor); |
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362 } |
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363 }, |
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364 created() { |
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365 this.resizeListenerFunction = debounce(this.redrawTimeSlider, 100); |
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366 window.addEventListener("resize", this.resizeListenerFunction); |
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367 }, |
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368 destroyed() { |
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369 window.removeEventListener("resize", this.resizeListenerFunction); |
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370 }, |
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371 mounted() { |
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372 setTimeout(this.createSlider, 150); |
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373 } |
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374 }; |
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375 </script> |