Mercurial > gemma
annotate client/src/components/TimeSlider.vue @ 5044:ca5b1b5a553a time-sliding
client: date localization for time slider
author | Fadi Abbud <fadi.abbud@intevation.de> |
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date | Fri, 28 Feb 2020 17:05:56 +0100 |
parents | bae2548dc484 |
children | a7cda81bf96f |
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 > |
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9 <div class="d-flex m-1"> |
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10 <input |
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11 class="form-control form-control-sm" |
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12 type="date" |
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13 v-model="timeSelection" |
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14 min="2015-01-01" |
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15 max="2020-03-01" |
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16 /> |
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17 </div> |
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18 <div |
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19 id="sliderContainer" |
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20 class="d-flex sliderContainer" |
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21 style="width: 98%;" |
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22 ></div> |
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23 <div @click="close" class="d-flex box-control mr-0" style="width: 2%;"> |
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24 <font-awesome-icon icon="times"></font-awesome-icon> |
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25 </div> |
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26 </div> |
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27 </template> |
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28 <style lang="sass" scoped> |
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29 #slider |
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30 position: absolute |
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31 bottom: 0 |
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32 min-width: 100vw; |
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33 &.expanded |
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34 max-height: 100%; |
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35 max-width: 100%; |
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36 margin: 0 |
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37 </style> |
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38 <script> |
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39 /* This is Free Software under GNU Affero General Public License v >= 3.0 |
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40 * without warranty, see README.md and license for details. |
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41 * |
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42 * SPDX-License-Identifier: AGPL-3.0-or-later |
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43 * License-Filename: LICENSES/AGPL-3.0.txt |
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44 * |
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45 * Copyright (C) 2020 by via donau |
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46 * – Österreichische Wasserstraßen-Gesellschaft mbH |
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47 * Software engineering by Intevation GmbH |
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48 * |
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49 * Author(s): |
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50 * Fadi Abbud <fadiabbud@intevation.de> |
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51 */ |
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52 import { mapState } from "vuex"; |
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53 import * as d3 from "d3"; |
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54 import app from "@/main"; |
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55 import { localeDateString } from "@/lib/datelocalization"; |
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56 |
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57 let zoom = null; |
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58 export default { |
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59 name: "timeslider", |
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60 data() { |
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61 return { |
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62 newX: null |
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63 }; |
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64 }, |
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65 watch: { |
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66 ongoingRefresh() { |
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67 if (this.ongoingRefresh) return; |
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68 this.$store.commit("application/setSelectedTime", new Date()); |
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69 this.$nextTick(this.redrawSlider); |
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70 } |
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71 }, |
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72 computed: { |
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73 ...mapState("application", ["showTimeSlider"]), |
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74 ...mapState("map", ["ongoingRefresh"]), |
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75 timeSelection: { |
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76 get() { |
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77 const date = this.$store.state.application.selectedTime; |
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78 return date.toISOString().split("T")[0]; |
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79 }, |
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80 set(value) { |
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81 const date = new Date(value); |
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82 this.$store.commit("application/setSelectedTime", date); |
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83 this.$nextTick(this.redrawSlider); |
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84 } |
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85 }, |
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86 selectedTime: { |
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87 get() { |
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88 return this.$store.state.application.selectedTime; |
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89 }, |
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90 set(value) { |
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91 this.$store.commit("application/setSelectedTime", value); |
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92 } |
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93 } |
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94 }, |
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95 methods: { |
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96 close() { |
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97 this.$store.commit("application/showTimeSlider", false); |
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98 }, |
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99 redrawSlider() { |
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100 this.createSlider(); |
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101 zoom.translateTo( |
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102 d3.select(".line"), |
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103 this.newX(d3.isoParse(this.selectedTime.toISOString())), |
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104 1 |
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105 ); |
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106 }, |
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107 createSlider() { |
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108 const element = document.getElementById("sliderContainer"); |
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109 const svgWidth = element ? element.clientWidth : 0, |
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110 svgHeight = 40, |
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111 marginTop = 20, |
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112 marginLeft = 0; |
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113 |
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114 d3.timeFormatDefaultLocale(localeDateString); |
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115 this.newX = this.getScale(); |
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116 d3.select(".sliderContainer svg").remove(); |
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117 let svg = d3 |
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118 .select(".sliderContainer") |
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119 .append("svg") |
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120 .attr("width", svgWidth) |
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121 .attr("height", svgHeight); |
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122 |
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123 const wheelDelta = () => { |
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124 return (-d3.event.deltaY * (d3.event.deltaMode ? 120 : 1)) / 15; |
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125 }; |
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126 // zoom event |
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127 zoom = d3 |
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128 .zoom() |
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129 .scaleExtent([0.8, 102000]) |
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130 .translateExtent([[0, 0], [svgWidth, svgHeight]]) |
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131 .extent([[0, 0], [(svgWidth, svgHeight)]]) |
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132 .on("zoom", this.zoomed); |
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133 zoom.wheelDelta(wheelDelta); |
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134 |
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135 svg |
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136 .append("g") |
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137 .attr("class", "axis--x") |
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138 .attr("transform", `translate(${marginLeft}, ${marginTop})`) |
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139 .call(this.getAxes()); |
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140 |
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141 // create rectanlge on the slider area to capture mouse events |
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142 const eventRect = svg |
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143 .append("rect") |
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144 .attr("id", "zoom") |
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145 .attr("class", "zoom") |
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146 .attr("width", svgWidth) |
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147 .attr("height", svgHeight) |
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148 .attr("fill", "white") |
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149 .attr("opacity", 0.2) |
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150 .on("mouseover", () => { |
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151 svg.select(".zoom").attr("cursor", "move"); |
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152 }); |
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153 eventRect.call(zoom).on("click", this.onClick); |
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154 |
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155 const toIsoDate = d => { |
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156 return d.toISOString(); |
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157 }; |
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158 |
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159 let drag = d3 |
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160 .drag() |
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161 .on("start", () => { |
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162 d3.select(".line") |
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163 .raise() |
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164 .classed("active", true); |
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165 }) |
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166 .on("drag", this.onDrag) |
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167 .on("end", () => { |
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168 d3.select(".line").classed("active", false); |
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169 }); |
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170 |
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171 // Create cursor to indicate to the selected time |
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172 svg |
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173 .append("rect") |
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174 .attr("class", "line") |
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175 .attr("id", "scrubber") |
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176 .attr("x", this.newX(d3.isoParse(toIsoDate(this.selectedTime)))) |
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177 .attr("y", 0) |
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178 .attr("width", 2) |
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179 .attr("height", svgHeight) |
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180 .attr("stroke", "#17a2b8") |
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181 .attr("stroke-width", 2) |
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182 .attr("opacity", 0.6) |
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183 .on("mouseover", () => { |
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184 svg.select(".line").attr("cursor", "e-resize"); |
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185 }) |
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186 .call(drag); |
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187 }, |
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188 getScale() { |
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189 return d3 |
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190 .scaleTime() |
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191 .range([0, document.getElementById("sliderContainer").clientWidth || 0]) |
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192 .domain([d3.isoParse(new Date("2015-01-01")), d3.isoParse(new Date())]); |
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193 }, |
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194 getAxes() { |
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195 const axesFormat = date => { |
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196 return (d3.timeSecond(date) < date |
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197 ? d3.timeFormat(".%L") |
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198 : d3.timeMinute(date) < date |
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199 ? d3.timeFormat(":%S") |
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200 : d3.timeHour(date) < date |
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201 ? d3.timeFormat("%H:%M") |
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202 : d3.timeDay(date) < date |
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203 ? d3.timeFormat("%H:%M") |
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204 : d3.timeMonth(date) < date |
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205 ? d3.timeWeek(date) < date |
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206 ? d3.timeFormat(app.$gettext("%a %d")) |
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207 : d3.timeFormat(app.$gettext("%b %d")) |
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208 : d3.timeYear(date) < date |
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209 ? d3.timeFormat("%B") |
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210 : d3.timeFormat("%Y"))(date); |
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211 }; |
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212 return d3 |
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213 .axisBottom(this.newX) |
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214 .ticks(12) |
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215 .tickFormat(axesFormat); |
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216 }, |
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217 zoomed() { |
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218 let scale = this.getScale(); |
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219 this.newX = d3.event.transform.rescaleX(scale); |
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220 d3.select(".axis--x").call(this.getAxes()); |
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221 d3.select(".line").attr("x", this.newX(d3.isoParse(this.selectedTime))); |
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222 }, |
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223 onClick() { |
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224 // Extract the click location |
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225 let point = d3.mouse(document.getElementById("zoom")), |
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226 p = { x: point[0], y: point[1] }; |
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227 d3.select(".line").attr("x", p.x); |
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228 this.selectedTime = d3.isoParse(this.newX.invert(p.x + 2)); |
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229 }, |
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230 onDrag() { |
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231 this.selectedTime = d3.isoParse(this.newX.invert(d3.event.x + 2)); |
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232 d3.select(".line").attr("x", d3.event.x); |
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233 } |
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234 }, |
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235 mounted() { |
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236 setTimeout(this.createSlider, 150); |
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237 } |
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238 }; |
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239 </script> |