1 files changed, 141 insertions, 0 deletions

diff --git a/viewer/src/views/layout/left/LayoutTagInput.vue b/viewer/src/views/layout/left/LayoutTagInput.vue
new file mode 100644
index 0000000..a37c546
--- /dev/null
+++ b/viewer/src/views/layout/left/LayoutTagInput.vue
@@ -0,0 +1,141 @@
+<!-- ldgallery - A static generator which turns a collection of tagged
+--             pictures into a searchable web gallery.
+--
+-- Copyright (C) 2019-2022  Guillaume FOUET
+--
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU Affero General Public License as
+-- published by the Free Software Foundation, either version 3 of the
+-- License, or (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU Affero General Public License for more details.
+--
+-- You should have received a copy of the GNU Affero General Public License
+-- along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
+<template>
+  <LdInput
+    ref="input"
+    v-model="search"
+    :placeholder="t('tagInput.placeholder')"
+    :tabindex="50"
+    @focus="e => (e.target as HTMLInputElement).select()"
+    @keypress.enter="inputEnter"
+    @keydown.backspace="inputBackspace"
+  />
+  <LdDropdown
+    ref="dropdown"
+    v-model="showDropdown"
+    :list="filteredTags"
+    list-key="tagfiltered"
+    :tabindex-root="51"
+    :class="$style.dropdown"
+    :style="dropdownStyle"
+    @select="addTag"
+    @opening="emit('opening')"
+    @closing="cleanSearch(); emit('closing');"
+  >
+    <template #option="{option}:{option:TagSearch}">
+      <div v-text="option.display" />
+      <div v-text="option.items.length" />
+    </template>
+    <template #empty>
+      <div
+        :class="$style.nomatch"
+        v-text="t('tagInput.nomatch')"
+      />
+    </template>
+  </LdDropdown>
+</template>
+
+<script setup lang="ts">
+import { TagSearch } from '@/@types/tag';
+import LdDropdown from '@/components/LdDropdown.vue';
+import LdInput from '@/components/LdInput.vue';
+import { useIndexFactory } from '@/services/indexFactory';
+import { useGalleryStore } from '@/store/galleryStore';
+import { computedEager, useElementBounding, useFocus, useVModel } from '@vueuse/core';
+import { computed, ref, StyleValue, watchEffect } from 'vue';
+import { useI18n } from 'vue-i18n';
+
+const props = defineProps({
+  modelValue: { type: Array<TagSearch>, required: true },
+});
+const emit = defineEmits(['update:modelValue', 'search', 'opening', 'closing']);
+const model = useVModel(props, 'modelValue', emit);
+
+const { t } = useI18n();
+const galeryStore = useGalleryStore();
+const indexFactory = useIndexFactory();
+
+const search = ref('');
+const showDropdown = ref(false);
+
+watchEffect(() => (showDropdown.value = !!search.value));
+
+// ---
+
+const dropdown = ref();
+const { top } = useElementBounding(dropdown);
+const dropdownStyle = computedEager<StyleValue>(() => ({ height: `calc(100vh - 8px - ${top.value}px)` }));
+
+const input = ref();
+const { focused } = useFocus(input);
+
+// ---
+
+const filteredTags = computed(() => indexFactory.searchTags(galeryStore.tagsIndex, search.value, false)
+  .filter(filterAlreadyPresent)
+  .sort((a, b) => b.items.length - a.items.length));
+
+function filterAlreadyPresent(newSearch: TagSearch) {
+  return !model.value.find(
+    currentSearch =>
+      currentSearch.tag === newSearch.tag && (!currentSearch.parent || currentSearch.parent === newSearch.parent),
+  );
+}
+
+function addTag(tag?: TagSearch) {
+  const toPush = tag ?? filteredTags.value[0];
+  if (!toPush) return;
+  model.value.push(toPush);
+  cleanSearch();
+}
+function inputEnter() {
+  if (search.value) addTag();
+  else emit('search');
+}
+function inputBackspace() {
+  !showDropdown.value && model.value.pop();
+}
+function cleanSearch() {
+  search.value = '';
+  focused.value = true;
+}
+</script>
+
+<style lang="scss" module>
+@import "~@/assets/scss/theme";
+
+.dropdown {
+  > div {
+    display: flex;
+    justify-content: space-between;
+    > div {
+      padding: 0 4px;
+    }
+    > div:last-child {
+      color: $text-light;
+    }
+  }
+  .nomatch {
+    color: $disabled-color;
+    justify-content: center;
+    cursor: default;
+  }
+}
+</style>