viewer: migrate to vue 3, general refactoring and cleanup

Non-exhaustive list of fixes and improvements done at the same time:

- html default background to grey (avoids white flash during init)
- unified links behavior
- added more theme variables
- removed the flex-expand transition (it wasn't working) and replaced it
  with a slide
- fixed LdLoading not centered on the content
- title on removable tags
- fixed an issue with encoded URI from vue-router
- unified Item resource URLs
- removed the iframe for PlainTextViewer (it wasn't working properly)
  and replaced it with a pre
- fixed clear and search buttons tabindex
- fixed the information panel bumping up during the fade animation of
  tag's dropdown
- fixed some focus outlines not appearing correctly
- moved CSS variables to the :root context
- Code cleaning

GitHub: closes #217
GitHub: closes #300
GitHub: closes #297
GitHub: closes #105
GitHub: closes #267
GitHub: closes #275
GitHub: closes #228
GitHub: closes #215
GitHub: closes #112

1 files changed, 0 insertions, 157 deletions

diff --git a/viewer/src/services/indexfactory.ts b/viewer/src/services/indexfactory.ts
deleted file mode 100644
index 691a765..0000000
--- a/viewer/src/services/indexfactory.ts
+++ /dev/null
@@ -1,157 +0,0 @@
-/* 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/>.
-*/
-
-import { Item, RawTag } from "@/@types/gallery";
-import { ItemType } from "@/@types/ItemType";
-import { Operation } from "@/@types/Operation";
-import { TagCategory, TagIndex, TagNode, TagSearch } from "@/@types/tag";
-import Navigation from "@/services/navigation";
-
-export default class IndexFactory {
-  public static generateTags(root: Item | null): TagIndex {
-    const tagsIndex: TagIndex = {};
-    if (root) IndexFactory.pushTagsForItem(tagsIndex, root);
-    return tagsIndex;
-  }
-
-  // Pushes all tags for a root item (and its children) to the index
-  private static pushTagsForItem(tagsIndex: TagIndex, item: Item): void {
-    if (item.properties.type === ItemType.DIRECTORY) {
-      item.properties.items.forEach(item => this.pushTagsForItem(tagsIndex, item));
-      return; // Directories are not indexed
-    }
-    for (const tag of item.tags) {
-      const parts = tag.split(":");
-      let lastPart: string | null = null;
-      for (const part of parts) {
-        tagsIndex[part] = IndexFactory.pushPartToIndex(tagsIndex[part], part, item, !Boolean(lastPart));
-        if (lastPart) {
-          const children = tagsIndex[lastPart].children;
-          children[part] = IndexFactory.pushPartToIndex(children[part], part, item, false);
-        }
-        lastPart = part;
-      }
-      if (lastPart) tagsIndex[lastPart].childPart = true;
-    }
-  }
-
-  private static pushPartToIndex(index: TagNode, part: string, item: Item, rootPart: boolean): TagNode {
-    if (!index)
-      index = {
-        tag: part,
-        tagfiltered: Navigation.normalize(part),
-        rootPart,
-        childPart: !rootPart,
-        items: [],
-        children: {},
-      };
-    else if (rootPart) index.rootPart = true;
-    else index.childPart = true;
-
-    if (!index.items.includes(item)) index.items.push(item);
-    return index;
-  }
-
-  // ---
-
-  public static searchTags(tagsIndex: TagIndex, filter: string, strict: boolean): TagSearch[] {
-    let search: TagSearch[] = [];
-    if (tagsIndex && filter) {
-      const operation = IndexFactory.extractOperation(filter);
-      if (operation !== Operation.INTERSECTION) filter = filter.slice(1);
-      if (filter.includes(":")) {
-        const filterParts = filter.split(":");
-        search = this.searchTagsFromFilterWithCategory(tagsIndex, operation, filterParts[0], filterParts[1], strict);
-      } else {
-        search = this.searchTagsFromFilter(tagsIndex, operation, filter, strict);
-      }
-    }
-    return search;
-  }
-
-  private static extractOperation(filter: string): Operation {
-    const first = filter.slice(0, 1);
-    switch (first) {
-      case Operation.ADDITION:
-      case Operation.SUBSTRACTION:
-        return first;
-      default:
-        return Operation.INTERSECTION;
-    }
-  }
-
-  private static searchTagsFromFilterWithCategory(
-    tagsIndex: TagIndex,
-    operation: Operation,
-    category: string,
-    disambiguation: string,
-    strict: boolean
-  ): TagSearch[] {
-    category = Navigation.normalize(category);
-    disambiguation = Navigation.normalize(disambiguation);
-    return Object.values(tagsIndex)
-      .filter(node => IndexFactory.matches(node, category, strict))
-      .flatMap(node =>
-        Object.values(node.children)
-          .filter(child => IndexFactory.matches(child, disambiguation, strict))
-          .map(child => ({ ...child, parent: node, operation, display: `${operation}${node.tag}:${child.tag}` }))
-      );
-  }
-
-  private static searchTagsFromFilter(
-    tagsIndex: TagIndex,
-    operation: Operation,
-    filter: string,
-    strict: boolean
-  ): TagSearch[] {
-    filter = Navigation.normalize(filter);
-    return Object.values(tagsIndex)
-      .filter(node => IndexFactory.matches(node, filter, strict))
-      .map(node => ({ ...node, operation, display: `${operation}${node.tag}` }));
-  }
-
-  private static matches(node: TagNode, filter: string, strict: boolean): boolean {
-    if (strict) return node.tagfiltered === filter;
-    return node.tagfiltered.includes(filter);
-  }
-
-  // ---
-
-  public static generateCategories(tagsIndex: TagIndex, categoryTags?: RawTag[]): TagCategory[] {
-    if (!categoryTags?.length) return [{ tag: "", index: tagsIndex }];
-
-    const tagsCategories: TagCategory[] = [];
-    const tagsRemaining = new Map(Object.entries(tagsIndex));
-    categoryTags
-      .map(tag => ({ tag, index: tagsIndex[tag]?.children }))
-      .filter(category => category.index && Object.keys(category.index).length)
-      .forEach(category => {
-        tagsCategories.push(category);
-        [category.tag, ...Object.values(category.index).map(node => node.tag)]
-          .filter(tag => IndexFactory.isDiscriminantTagOnly(categoryTags, tagsIndex[tag]))
-          .forEach(tag => tagsRemaining.delete(tag));
-      });
-    tagsCategories.push({ tag: "", index: Object.fromEntries(tagsRemaining) });
-    return tagsCategories;
-  }
-
-  private static isDiscriminantTagOnly(tags: RawTag[], node: TagNode): boolean {
-    return !tags.includes(node.tag) || !node.childPart;
-  }
-}