Move bg/js (#1387)

* Move bg/js/anki.js to js/comm/anki.js

* Move bg/js/mecab.js to js/comm/mecab.js

* Move bg/js/search-main.js to js/display/search-main.js

* Move bg/js/template-patcher.js to js/templates/template-patcher.js

* Move bg/js/template-renderer-frame-api.js to js/templates/template-renderer-frame-api.js

* Move bg/js/template-renderer-frame-main.js to js/templates/template-renderer-frame-main.js

* Move bg/js/template-renderer-proxy.js to js/templates/template-renderer-proxy.js

* Move bg/js/template-renderer.js to js/templates/template-renderer.js

* Move bg/js/media-utility.js to js/media/media-utility.js

* Move bg/js/native-simple-dom-parser.js to js/dom/native-simple-dom-parser.js

* Move bg/js/simple-dom-parser.js to js/dom/simple-dom-parser.js

* Move bg/js/audio-downloader.js to js/media/audio-downloader.js

* Move bg/js/deinflector.js to js/language/deinflector.js

* Move bg/js/backend.js to js/background/backend.js

* Move bg/js/translator.js to js/language/translator.js

* Move bg/js/search-display-controller.js to js/display/search-display-controller.js

* Move bg/js/request-builder.js to js/background/request-builder.js

* Move bg/js/text-source-map.js to js/general/text-source-map.js

* Move bg/js/clipboard-reader.js to js/comm/clipboard-reader.js

* Move bg/js/clipboard-monitor.js to js/comm/clipboard-monitor.js

* Move bg/js/query-parser.js to js/display/query-parser.js

* Move bg/js/profile-conditions.js to js/background/profile-conditions.js

* Move bg/js/dictionary-database.js to js/language/dictionary-database.js

* Move bg/js/dictionary-importer.js to js/language/dictionary-importer.js

* Move bg/js/anki-note-builder.js to js/data/anki-note-builder.js

* Move bg/js/anki-note-data.js to js/data/anki-note-data.js

* Move bg/js/database.js to js/data/database.js

* Move bg/js/json-schema.js to js/data/json-schema.js

* Move bg/js/options.js to js/data/options-util.js

* Move bg/js/background-main.js to js/background/background-main.js

* Move bg/js/permissions-util.js to js/data/permissions-util.js

* Move bg/js/context-main.js to js/pages/action-popup-main.js

* Move bg/js/generic-page-main.js to js/pages/generic-page-main.js

* Move bg/js/info-main.js to js/pages/info-main.js

* Move bg/js/permissions-main.js to js/pages/permissions-main.js

* Move bg/js/welcome-main.js to js/pages/welcome-main.js

1 files changed, 126 insertions, 0 deletions

diff --git a/ext/js/data/permissions-util.js b/ext/js/data/permissions-util.js
new file mode 100644
index 00000000..bd3a18ce
--- /dev/null
+++ b/ext/js/data/permissions-util.js
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2021  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/>.
+ */
+
+class PermissionsUtil {
+    constructor() {
+        this._ankiFieldMarkersRequiringClipboardPermission = new Set([
+            'clipboard-image',
+            'clipboard-text'
+        ]);
+        this._ankiMarkerPattern = /\{([\w-]+)\}/g;
+    }
+
+    hasPermissions(permissions) {
+        return new Promise((resolve, reject) => chrome.permissions.contains(permissions, (result) => {
+            const e = chrome.runtime.lastError;
+            if (e) {
+                reject(new Error(e.message));
+            } else {
+                resolve(result);
+            }
+        }));
+    }
+
+    setPermissionsGranted(permissions, shouldHave) {
+        return (
+            shouldHave ?
+            new Promise((resolve, reject) => chrome.permissions.request(permissions, (result) => {
+                const e = chrome.runtime.lastError;
+                if (e) {
+                    reject(new Error(e.message));
+                } else {
+                    resolve(result);
+                }
+            })) :
+            new Promise((resolve, reject) => chrome.permissions.remove(permissions, (result) => {
+                const e = chrome.runtime.lastError;
+                if (e) {
+                    reject(new Error(e.message));
+                } else {
+                    resolve(!result);
+                }
+            }))
+        );
+    }
+
+    getAllPermissions() {
+        return new Promise((resolve, reject) => chrome.permissions.getAll((result) => {
+            const e = chrome.runtime.lastError;
+            if (e) {
+                reject(new Error(e.message));
+            } else {
+                resolve(result);
+            }
+        }));
+    }
+
+    getRequiredPermissionsForAnkiFieldValue(fieldValue) {
+        const markers = this._getAnkiFieldMarkers(fieldValue);
+        const markerPermissions = this._ankiFieldMarkersRequiringClipboardPermission;
+        for (const marker of markers) {
+            if (markerPermissions.has(marker)) {
+                return ['clipboardRead'];
+            }
+        }
+        return [];
+    }
+
+    hasRequiredPermissionsForOptions(permissions, options) {
+        const permissionsSet = new Set(permissions.permissions);
+
+        if (!permissionsSet.has('nativeMessaging')) {
+            if (options.parsing.enableMecabParser) {
+                return false;
+            }
+        }
+
+        if (!permissionsSet.has('clipboardRead')) {
+            if (options.clipboard.enableBackgroundMonitor || options.clipboard.enableSearchPageMonitor) {
+                return false;
+            }
+            const fieldMarkersRequiringClipboardPermission = this._ankiFieldMarkersRequiringClipboardPermission;
+            const fieldsList = [
+                options.anki.terms.fields,
+                options.anki.kanji.fields
+            ];
+            for (const fields of fieldsList) {
+                for (const fieldValue of Object.values(fields)) {
+                    const markers = this._getAnkiFieldMarkers(fieldValue);
+                    for (const marker of markers) {
+                        if (fieldMarkersRequiringClipboardPermission.has(marker)) {
+                            return false;
+                        }
+                    }
+                }
+            }
+        }
+
+        return true;
+    }
+
+    // Private
+
+    _getAnkiFieldMarkers(fieldValue) {
+        const pattern = this._ankiMarkerPattern;
+        const markers = [];
+        let match;
+        while ((match = pattern.exec(fieldValue)) !== null) {
+            markers.push(match[1]);
+        }
+        return markers;
+    }
+}