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-rw-r--r--ext/js/media/media-loader.js97
1 files changed, 0 insertions, 97 deletions
diff --git a/ext/js/media/media-loader.js b/ext/js/media/media-loader.js
deleted file mode 100644
index d7f6b347..00000000
--- a/ext/js/media/media-loader.js
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2020-2022 Yomichan Authors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
-
-/* global
- * StringUtil
- */
-
-class MediaLoader {
- constructor() {
- this._token = {};
- this._mediaCache = new Map();
- this._loadMediaData = [];
- }
-
- async loadMedia(path, dictionary, onLoad, onUnload) {
- const token = this._token;
- const data = {onUnload, loaded: false};
-
- this._loadMediaData.push(data);
-
- const media = await this.getMedia(path, dictionary);
- if (token !== this._token) { return; }
-
- onLoad(media.url);
- data.loaded = true;
- }
-
- unloadAll() {
- for (const {onUnload, loaded} of this._loadMediaData) {
- if (typeof onUnload === 'function') {
- onUnload(loaded);
- }
- }
- this._loadMediaData = [];
-
- for (const map of this._mediaCache.values()) {
- for (const {url} of map.values()) {
- if (url !== null) {
- URL.revokeObjectURL(url);
- }
- }
- }
- this._mediaCache.clear();
-
- this._token = {};
- }
-
- async getMedia(path, dictionary) {
- let cachedData;
- let dictionaryCache = this._mediaCache.get(dictionary);
- if (typeof dictionaryCache !== 'undefined') {
- cachedData = dictionaryCache.get(path);
- } else {
- dictionaryCache = new Map();
- this._mediaCache.set(dictionary, dictionaryCache);
- }
-
- if (typeof cachedData === 'undefined') {
- cachedData = {
- promise: null,
- data: null,
- url: null
- };
- dictionaryCache.set(path, cachedData);
- cachedData.promise = this._getMediaData(path, dictionary, cachedData);
- }
-
- return cachedData.promise;
- }
-
- async _getMediaData(path, dictionary, cachedData) {
- const token = this._token;
- const data = (await yomichan.api.getMedia([{path, dictionary}]))[0];
- if (token === this._token && data !== null) {
- const buffer = StringUtil.base64ToArrayBuffer(data.content);
- const blob = new Blob([buffer], {type: data.mediaType});
- const url = URL.createObjectURL(blob);
- cachedData.data = data;
- cachedData.url = url;
- }
- return cachedData;
- }
-}