<!-- ldgallery - A static generator which turns a collection of tagged
--             pictures into a searchable web gallery.
--
-- Copyright (C) 2019-2020  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/>.
-->

<script lang="ts">
import { Component, Vue, Watch, Prop } from "vue-property-decorator";

@Component
export default class LdTitle extends Vue {
  @Prop({ required: true }) readonly galleryTitle!: string;
  @Prop() readonly currentItem?: Gallery.Item;

  render() {
    return null;
  }

  mounted() {
    this.changedCurrentItemPath();
  }

  @Watch("currentItem")
  changedCurrentItemPath() {
    document.title = this.generateTitle();
  }

  generateTitle(): string {
    if (this.currentItem?.title) return `${this.currentItem.title} • ${this.galleryTitle}`;
    return this.galleryTitle;
  }
}
</script>