changed importexport into a service instead of component for simplicity

src/components/export_import/export_import.vue

-<template>
-  <div class="import-export-container">
-    <slot name="before" />
-    <button
-      class="btn button-default"
-      @click="exportData"
-    >
-      {{ exportLabel }}
-    </button>
-    <button
-      class="btn button-default"
-      @click="importData"
-    >
-      {{ importLabel }}
-    </button>
-    <slot name="afterButtons" />
-    <p
-      v-if="importFailed"
-      class="alert error"
-    >
-      {{ importFailedText }}
-    </p>
-    <slot name="afterError" />
-  </div>
-</template>
-
-<script>
-export default {
-  props: [
-    'exportObject',
-    'importLabel',
-    'exportLabel',
-    'importFailedText',
-    'validator',
-    'onImport',
-    'onImportFailure'
-  ],
-  data () {
-    return {
-      importFailed: false
-    }
-  },
-  methods: {
-    exportData () {
-      const stringified = JSON.stringify(this.exportObject, null, 2) // Pretty-print and indent with 2 spaces
-
-      // Create an invisible link with a data url and simulate a click
-      const e = document.createElement('a')
-      e.setAttribute('download', 'pleroma_theme.json')
-      e.setAttribute('href', 'data:application/json;base64,' + window.btoa(stringified))
-      e.style.display = 'none'
-
-      document.body.appendChild(e)
-      e.click()
-      document.body.removeChild(e)
-    },
-    importData () {
-      this.importFailed = false
-      const filePicker = document.createElement('input')
-      filePicker.setAttribute('type', 'file')
-      filePicker.setAttribute('accept', '.json')
-
-      filePicker.addEventListener('change', event => {
-        if (event.target.files[0]) {
-          // eslint-disable-next-line no-undef
-          const reader = new FileReader()
-          reader.onload = ({ target }) => {
-            try {
-              const parsed = JSON.parse(target.result)
-              const valid = this.validator(parsed)
-              if (valid) {
-                this.onImport(parsed)
-              } else {
-                this.importFailed = true
-                // this.onImportFailure(valid)
-              }
-            } catch (e) {
-              // This will happen both if there is a JSON syntax error or the theme is missing components
-              this.importFailed = true
-              // this.onImportFailure(e)
-            }
-          }
-          reader.readAsText(event.target.files[0])
-        }
-      })
-
-      document.body.appendChild(filePicker)
-      filePicker.click()
-      document.body.removeChild(filePicker)
-    }
-  }
-}
-</script>
-
-<style lang="scss">
-.import-export-container {
-  display: flex;
-  flex-wrap: wrap;
-  align-items: baseline;
-  justify-content: center;
-}
-</style>

src/components/settings_modal/tabs/theme_tab/theme_tab.js

@@ -15,6 +15,10 @@ import {
   shadows2to3,
   colors2to3
 } from 'src/services/style_setter/style_setter.js'
+import {
+  newImporter,
+  newExporter
+} from 'src/services/export_import/export_import.js'
 import {
   SLOT_INHERITANCE
 } from 'src/services/theme_data/pleromafe.js'
@@ -31,7 +35,6 @@ import ShadowControl from 'src/components/shadow_control/shadow_control.vue'
 import FontControl from 'src/components/font_control/font_control.vue'
 import ContrastRatio from 'src/components/contrast_ratio/contrast_ratio.vue'
 import TabSwitcher from 'src/components/tab_switcher/tab_switcher.js'
-import ExportImport from 'src/components/export_import/export_import.vue'
 import Checkbox from 'src/components/checkbox/checkbox.vue'
 
 import Preview from './preview.vue'
@@ -67,6 +70,15 @@ const colorConvert = (color) => {
 export default {
   data () {
     return {
+      themeImporter: newImporter({
+        validator: this.importValidator,
+        onImport: this.onImport,
+        onImportFailure: this.onImportFailure
+      }),
+      themeExporter: newExporter({
+        filename: 'pleroma_theme',
+        getExportedObject: () => this.exportedTheme
+      }),
       availableStyles: [],
       selected: this.$store.getters.mergedConfig.theme,
       themeWarning: undefined,
@@ -383,7 +395,6 @@ export default {
     FontControl,
     TabSwitcher,
     Preview,
-    ExportImport,
     Checkbox
   },
   methods: {
@@ -528,10 +539,15 @@ export default {
         this.previewColors.mod
       )
     },
+    importTheme () { this.themeImporter.importData() },
+    exportTheme () { this.themeExporter.exportData() },
     onImport (parsed, forceSource = false) {
       this.tempImportFile = parsed
       this.loadTheme(parsed, 'file', forceSource)
     },
+    onImportFailure (result) {
+      this.$store.dispatch('pushGlobalNotice', { messageKey: 'settings.invalid_theme_imported', level: 'error' })
+    },
     importValidator (parsed) {
       const version = parsed._pleroma_theme_version
       return version >= 1 || version <= 2

src/components/settings_modal/tabs/theme_tab/theme_tab.vue

@@ -48,46 +48,45 @@
             </template>
           </div>
         </div>
-        <ExportImport
-          :export-object="exportedTheme"
-          :export-label="$t(&quot;settings.export_theme&quot;)"
-          :import-label="$t(&quot;settings.import_theme&quot;)"
-          :import-failed-text="$t(&quot;settings.invalid_theme_imported&quot;)"
-          :on-import="onImport"
-          :validator="importValidator"
-        >
-          <template slot="before">
-            <div class="presets">
-              {{ $t('settings.presets') }}
-              <label
-                for="preset-switcher"
-                class="select"
+        <div class="top">
+          <div class="presets">
+            {{ $t('settings.presets') }}
+            <label
+              for="preset-switcher"
+              class="select"
+            >
+              <select
+                id="preset-switcher"
+                v-model="selected"
+                class="preset-switcher"
               >
-                <select
-                  id="preset-switcher"
-                  v-model="selected"
-                  class="preset-switcher"
+                <option
+                  v-for="style in availableStyles"
+                  :key="style.name"
+                  :value="style"
+                  :style="{
+                    backgroundColor: style[1] || (style.theme || style.source).colors.bg,
+                    color: style[3] || (style.theme || style.source).colors.text
+                  }"
                 >
-                  <option
-                    v-for="style in availableStyles"
-                    :key="style.name"
-                    :value="style"
-                    :style="{
-                      backgroundColor: style[1] || (style.theme || style.source).colors.bg,
-                      color: style[3] || (style.theme || style.source).colors.text
-                    }"
-                  >
-                    {{ style[0] || style.name }}
-                  </option>
-                </select>
-                <FAIcon
-                  class="select-down-icon"
-                  icon="chevron-down"
-                />
-              </label>
-            </div>
-          </template>
-        </ExportImport>
+                  {{ style[0] || style.name }}
+                </option>
+              </select>
+              <FAIcon
+                class="select-down-icon"
+                icon="chevron-down"
+              />
+            </label>
+          </div>
+          <div class="export-import">
+            <button class="btn button-default" @click="importTheme">
+              {{ $t(&quot;settings.import_theme&quot;) }}
+            </button>
+            <button class="btn button-default" @click="exportTheme">
+              {{ $t(&quot;settings.export_theme&quot;) }}
+            </button>
+          </div>
+        </div>
       </div>
       <div class="save-load-options">
         <span class="keep-option">

src/services/export_import/export_import.js

+export const newExporter = ({
+  filename = 'data',
+  getExportedObject
+}) => ({
+  exportData () {
+    const stringified = JSON.stringify(getExportedObject(), null, 2) // Pretty-print and indent with 2 spaces
+
+    // Create an invisible link with a data url and simulate a click
+    const e = document.createElement('a')
+    e.setAttribute('download', `${filename}.json`)
+    e.setAttribute('href', 'data:application/json;base64,' + window.btoa(stringified))
+    e.style.display = 'none'
+
+    document.body.appendChild(e)
+    e.click()
+    document.body.removeChild(e)
+  }
+})
+
+export const newImporter = ({
+  onImport,
+  onImportFailure,
+  validator = () => true
+}) => ({
+  importData () {
+    const filePicker = document.createElement('input')
+    filePicker.setAttribute('type', 'file')
+    filePicker.setAttribute('accept', '.json')
+    console.log(1)
+
+    filePicker.addEventListener('change', event => {
+      if (event.target.files[0]) {
+        // eslint-disable-next-line no-undef
+        const reader = new FileReader()
+        reader.onload = ({ target }) => {
+          try {
+            const parsed = JSON.parse(target.result)
+            const validationResult = validator(parsed)
+            if (validationResult === true) {
+              onImport(parsed)
+            } else {
+              onImportFailure({ validationResult })
+            }
+          } catch (error) {
+            onImportFailure({ error })
+          }
+        }
+        console.log(2)
+        reader.readAsText(event.target.files[0])
+      }
+    })
+
+    document.body.appendChild(filePicker)
+    filePicker.click()
+    document.body.removeChild(filePicker)
+  }
+})