Implement data copying & download

src/components/modals/Download.vue

@@ -1,5 +1,102 @@
 <template>
   <modal name="download" adaptive>
-    Not implemented.
+    <pre class="data"><code>{{ data }}</code></pre>
+    <div class="options">
+      <input
+        v-model="options.minifyJson"
+        type="checkbox"
+        id="option-minify-json"
+      />
+      <label for="option-minify-json">
+        Minify JSON
+      </label>
+    </div>
+    <div class="buttons">
+      <button class="button button-outline button-primary" @click="copy">
+        Copy to Clipboard
+      </button>
+      <button class="button button-primary" @click="download">
+        Download
+      </button>
+    </div>
   </modal>
 </template>
+
+<style lang="scss" scoped>
+.data {
+  max-height: 300px;
+}
+
+.options {
+  margin-top: 30px;
+}
+
+.buttons {
+  display: flex;
+  margin-top: 30px;
+
+  button {
+    flex: 1;
+
+    &:first-child {
+      margin-right: 10px;
+    }
+
+    &:last-child {
+      margin-left: 10px;
+    }
+  }
+}
+</style>
+
+<script>
+import { mapState } from "vuex";
+import copy from "clipboard-copy";
+
+import { download } from "@/util";
+
+export default {
+  data() {
+    return {
+      options: {
+        minifyJson: false,
+      },
+    };
+  },
+  computed: {
+    ...mapState([
+      "startDate",
+      "endDate",
+      "selectedUser",
+      "selectedDevice",
+      "locationHistory",
+    ]),
+    data() {
+      return this.locationHistory;
+    },
+  },
+  methods: {
+    copy() {
+      const data = JSON.stringify(
+        this.data,
+        null,
+        this.options.minifyJson ? 0 : 2
+      );
+      copy(data);
+    },
+    download() {
+      const data = JSON.stringify(
+        this.data,
+        null,
+        this.options.minifyJson ? 0 : 2
+      );
+      const start = this.startDate.toISOString().split("T")[0];
+      const end = this.endDate.toISOString().split("T")[0];
+      const user = this.selectedUser ? `_${this.selectedUser}` : "";
+      const device = this.selectedDevice ? `_${this.selectedDevice}` : "";
+      const filename = `data_${start}_${end}${user}${device}.json`;
+      download(data, filename, "application/json");
+    },
+  },
+};
+</script>

src/styles/_base.scss

@@ -31,6 +31,22 @@ ul {
   list-style: inside;
 }
 
+pre {
+  background: #000;
+  border-radius: 3px;
+  color: #ddd;
+  display: block;
+  font-family: Consolas, "Andale Mono WT", "Andale Mono", "Lucida Console",
+    "Lucida Sans Typewriter", "DejaVu Sans Mono", "Bitstream Vera Sans Mono",
+    "Liberation Mono", "Nimbus Mono L", Monaco, "Courier New", Courier, monospace;
+  overflow-x: auto;
+
+  code {
+    display: block;
+    margin: 20px;
+  }
+}
+
 #app {
   display: flex;
   min-height: 100%;
@@ -104,7 +120,8 @@ ul {
   }
 }
 
-.button,
+
+
 .vdp-datepicker input {
   cursor: pointer;
   color: var(--color-text);
@@ -112,35 +129,59 @@ ul {
   border: 0;
   border-radius: 18px;
   padding: 8px 16px;
-  text-overflow: ellipsis;
-}
-
-.vdp-datepicker input {
   min-width: 130px;
 }
 
-.button-outline {
-  border: 1px solid var(--color-background);
-  color: var(--color-primary-text);
-  background: transparent;
-}
+.button {
+  cursor: pointer;
+  color: var(--color-text);
+  background: var(--color-background);
+  border: 0;
+  border-radius: 18px;
+  padding: 8px 16px;
+  text-overflow: ellipsis;
 
-.button-flat {
-  color: var(--color-primary-text);
-  background: transparent;
-}
+  &.button-primary {
+    color: var(--color-primary-text);
+    background: var(--color-primary);
 
-.button-outline,
-.button-flat {
-  transition: background 0.2s;
-  &:hover,
-  &:focus {
-    background: rgba(0, 0, 0, 0.2);
+    &:focus::-moz-focus-inner {
+      border-color: var(--color-primary-text)e;
+    }
   }
-}
 
-.button-icon {
-  padding: 8px;
+  &.button-outline {
+    border: 1px solid var(--color-background);
+    color: var(--color-primary-text);
+    background: transparent;
+
+    &.button-primary {
+      border-color: var(--color-primary);
+      color: var(--color-text);
+    }
+  }
+
+  &.button-flat {
+    color: var(--color-primary-text);
+    background: transparent;
+
+    &.button-primary {
+      color: var(--color-text);
+    }
+  }
+
+  &.button-outline,
+  &.button-flat {
+    transition: background 0.2s;
+    &:hover,
+    &:focus {
+      background: rgba(0, 0, 0, 0.2);
+    }
+  }
+
+  &.button-icon {
+    padding: 8px;
+  }
 }
 
 .dropdown {

src/util.js

@@ -57,3 +57,22 @@ export const distanceBetweenCoordinates = (c1, c2) => {
   // Return distance in meters
   return EARTH_RADIUS_IN_KM * c * 1000;
 };
+
+/**
+ * Let the user download a string as file.
+ *
+ * @param {String} text Content of the file
+ * @param {String} filename Suggested filename for the browser
+ * @param {String} [mimeType] Content mime type
+ */
+export const download = (text, filename, mimeType = "text/plain") => {
+  const dataUrl = `data:${mimeType},${encodeURIComponent(text)}`;
+  console.log(dataUrl);
+  const element = document.createElement("a");
+  element.href = dataUrl;
+  element.download = filename;
+  element.style.display = "none";
+  document.body.appendChild(element);
+  element.click();
+  document.body.removeChild(element);
+};