1 files changed, 210 insertions, 0 deletions
diff --git a/ext/js/settings/settings-controller.js b/ext/js/settings/settings-controller.js
new file mode 100644
index 00000000..11a9435c
--- /dev/null
+++ b/ext/js/settings/settings-controller.js
@@ -0,0 +1,210 @@
+/*
+ * Copyright (C) 2020-2021  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/>.
+ */
+
+/* global
+ * HtmlTemplateCollection
+ * OptionsUtil
+ * PermissionsUtil
+ * api
+ */
+
+class SettingsController extends EventDispatcher {
+    constructor(profileIndex=0) {
+        super();
+        this._profileIndex = profileIndex;
+        this._source = generateId(16);
+        this._pageExitPreventions = new Set();
+        this._pageExitPreventionEventListeners = new EventListenerCollection();
+        this._templates = new HtmlTemplateCollection(document);
+        this._permissionsUtil = new PermissionsUtil();
+    }
+
+    get source() {
+        return this._source;
+    }
+
+    get profileIndex() {
+        return this._profileIndex;
+    }
+
+    set profileIndex(value) {
+        if (this._profileIndex === value) { return; }
+        this._setProfileIndex(value);
+    }
+
+    get permissionsUtil() {
+        return this._permissionsUtil;
+    }
+
+    prepare() {
+        yomichan.on('optionsUpdated', this._onOptionsUpdated.bind(this));
+        chrome.permissions.onAdded.addListener(this._onPermissionsChanged.bind(this));
+        chrome.permissions.onRemoved.addListener(this._onPermissionsChanged.bind(this));
+    }
+
+    async refresh() {
+        await this._onOptionsUpdatedInternal();
+    }
+
+    async getOptions() {
+        const optionsContext = this.getOptionsContext();
+        return await api.optionsGet(optionsContext);
+    }
+
+    async getOptionsFull() {
+        return await api.optionsGetFull();
+    }
+
+    async setAllSettings(value) {
+        const profileIndex = value.profileCurrent;
+        await api.setAllSettings(value, this._source);
+        this._setProfileIndex(profileIndex);
+    }
+
+    async getSettings(targets) {
+        return await this._getSettings(targets, {});
+    }
+
+    async getGlobalSettings(targets) {
+        return await this._getSettings(targets, {scope: 'global'});
+    }
+
+    async getProfileSettings(targets) {
+        return await this._getSettings(targets, {scope: 'profile'});
+    }
+
+    async modifySettings(targets) {
+        return await this._modifySettings(targets, {});
+    }
+
+    async modifyGlobalSettings(targets) {
+        return await this._modifySettings(targets, {scope: 'global'});
+    }
+
+    async modifyProfileSettings(targets) {
+        return await this._modifySettings(targets, {scope: 'profile'});
+    }
+
+    async setGlobalSetting(path, value) {
+        return await this.modifyGlobalSettings([{action: 'set', path, value}]);
+    }
+
+    async setProfileSetting(path, value) {
+        return await this.modifyProfileSettings([{action: 'set', path, value}]);
+    }
+
+    async getDictionaryInfo() {
+        return await api.getDictionaryInfo();
+    }
+
+    getOptionsContext() {
+        return {index: this._profileIndex};
+    }
+
+    preventPageExit() {
+        const obj = {end: null};
+        obj.end = this._endPreventPageExit.bind(this, obj);
+        if (this._pageExitPreventionEventListeners.size === 0) {
+            this._pageExitPreventionEventListeners.addEventListener(window, 'beforeunload', this._onBeforeUnload.bind(this), false);
+        }
+        this._pageExitPreventions.add(obj);
+        return obj;
+    }
+
+    instantiateTemplate(name) {
+        return this._templates.instantiate(name);
+    }
+
+    instantiateTemplateFragment(name) {
+        return this._templates.instantiateFragment(name);
+    }
+
+    async getDefaultOptions() {
+        const optionsUtil = new OptionsUtil();
+        await optionsUtil.prepare();
+        const optionsFull = optionsUtil.getDefault();
+        return optionsFull;
+    }
+
+    // Private
+
+    _setProfileIndex(value) {
+        this._profileIndex = value;
+        this.trigger('optionsContextChanged');
+        this._onOptionsUpdatedInternal();
+    }
+
+    _onOptionsUpdated({source}) {
+        if (source === this._source) { return; }
+        this._onOptionsUpdatedInternal();
+    }
+
+    async _onOptionsUpdatedInternal() {
+        const optionsContext = this.getOptionsContext();
+        const options = await this.getOptions();
+        this.trigger('optionsChanged', {options, optionsContext});
+    }
+
+    _setupTargets(targets, extraFields) {
+        return targets.map((target) => {
+            target = Object.assign({}, extraFields, target);
+            if (target.scope === 'profile') {
+                target.optionsContext = this.getOptionsContext();
+            }
+            return target;
+        });
+    }
+
+    async _getSettings(targets, extraFields) {
+        targets = this._setupTargets(targets, extraFields);
+        return await api.getSettings(targets);
+    }
+
+    async _modifySettings(targets, extraFields) {
+        targets = this._setupTargets(targets, extraFields);
+        return await api.modifySettings(targets, this._source);
+    }
+
+    _onBeforeUnload(e) {
+        if (this._pageExitPreventions.size === 0) {
+            return;
+        }
+
+        e.preventDefault();
+        e.returnValue = '';
+        return '';
+    }
+
+    _endPreventPageExit(obj) {
+        this._pageExitPreventions.delete(obj);
+        if (this._pageExitPreventions.size === 0) {
+            this._pageExitPreventionEventListeners.removeAllEventListeners();
+        }
+    }
+
+    _onPermissionsChanged() {
+        this._triggerPermissionsChanged();
+    }
+
+    async _triggerPermissionsChanged() {
+        const event = 'permissionsChanged';
+        if (!this.hasListeners(event)) { return; }
+
+        const permissions = await this._permissionsUtil.getAllPermissions();
+        this.trigger(event, {permissions});
+    }
+}