aboutsummaryrefslogtreecommitdiff
path: root/ext/bg/js/settings
diff options
context:
space:
mode:
Diffstat (limited to 'ext/bg/js/settings')
-rw-r--r--ext/bg/js/settings/dom-settings-binder.js122
1 files changed, 122 insertions, 0 deletions
diff --git a/ext/bg/js/settings/dom-settings-binder.js b/ext/bg/js/settings/dom-settings-binder.js
new file mode 100644
index 00000000..0441ec29
--- /dev/null
+++ b/ext/bg/js/settings/dom-settings-binder.js
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2020 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
+ * DOMDataBinder
+ * api
+ * getOptionsContext
+ */
+
+class DOMSettingsBinder {
+ constructor({getOptionsContext, transforms=null}) {
+ this._getOptionsContext = getOptionsContext;
+ this._defaultScope = 'profile';
+ this._dataBinder = new DOMDataBinder({
+ selector: '[data-setting]',
+ createElementMetadata: this._createElementMetadata.bind(this),
+ compareElementMetadata: this._compareElementMetadata.bind(this),
+ getValues: this._getValues.bind(this),
+ setValues: this._setValues.bind(this)
+ });
+ this._transforms = new Map(transforms !== null ? transforms : []);
+ }
+
+ observe(element) {
+ this._dataBinder.observe(element);
+ }
+
+ disconnect() {
+ this._dataBinder.disconnect();
+ }
+
+ refresh() {
+ this._dataBinder.refresh();
+ }
+
+ // Private
+
+ _createElementMetadata(element) {
+ return {
+ path: element.dataset.setting,
+ scope: element.dataset.scope,
+ transformPre: element.dataset.transformPre,
+ transformPost: element.dataset.transformPost
+ };
+ }
+
+ _compareElementMetadata(metadata1, metadata2) {
+ return (
+ metadata1.path === metadata2.path &&
+ metadata1.scope === metadata2.scope &&
+ metadata1.transformPre === metadata2.transformPre &&
+ metadata1.transformPost === metadata2.transformPost
+ );
+ }
+
+ async _getValues(targets) {
+ const settingsTargets = [];
+ for (const {metadata: {path, scope}} of targets) {
+ const target = {
+ path,
+ scope: scope || this._defaultScope
+ };
+ if (target.scope === 'profile') {
+ target.optionsContext = this._getOptionsContext();
+ }
+ settingsTargets.push(target);
+ }
+ return this._transformResults(await api.getSettings(settingsTargets), targets);
+ }
+
+ async _setValues(targets) {
+ const settingsTargets = [];
+ for (const {metadata, value, element} of targets) {
+ const {path, scope, transformPre} = metadata;
+ const target = {
+ path,
+ scope: scope || this._defaultScope,
+ action: 'set',
+ value: this._transform(value, transformPre, metadata, element)
+ };
+ if (target.scope === 'profile') {
+ target.optionsContext = this._getOptionsContext();
+ }
+ settingsTargets.push(target);
+ }
+ return this._transformResults(await api.modifySettings(settingsTargets), targets);
+ }
+
+ _transform(value, transform, metadata, element) {
+ if (typeof transform === 'string') {
+ const transformFunction = this._transforms.get(transform);
+ if (typeof transformFunction !== 'undefined') {
+ value = transformFunction(value, metadata, element);
+ }
+ }
+ return value;
+ }
+
+ _transformResults(values, targets) {
+ return values.map((value, i) => {
+ const error = value.error;
+ if (error) { return jsonToError(error); }
+ const {metadata, element} = targets[i];
+ const result = this._transform(value.result, metadata.transformPost, metadata, element);
+ return {result};
+ });
+ }
+}