move notifications logic over from riot-web

src/notifications/PushRuleVectorState.js

@@ -0,0 +1,94 @@
+/*
+Copyright 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+'use strict';
+
+var StandardActions = require('./StandardActions');
+var NotificationUtils = require('./NotificationUtils');
+
+var states = {
+    /** The push rule is disabled */
+    OFF: "off",
+
+    /** The user will receive push notification for this rule */
+    ON: "on",
+
+    /** The user will receive push notification for this rule with sound and
+        highlight if this is legitimate */
+    LOUD: "loud",
+};
+
+
+module.exports = {
+    /**
+     * Enum for state of a push rule as defined by the Vector UI.
+     * @readonly
+     * @enum {string}
+     */
+    states: states,
+
+    /**
+     * Convert a PushRuleVectorState to a list of actions
+     *
+     * @return [object] list of push-rule actions
+     */
+    actionsFor: function(pushRuleVectorState) {
+        if (pushRuleVectorState === this.ON) {
+            return StandardActions.ACTION_NOTIFY;
+        }
+        else if (pushRuleVectorState === this.LOUD) {
+            return StandardActions.ACTION_HIGHLIGHT_DEFAULT_SOUND;
+        }
+    },
+
+    /**
+     * Convert a pushrule's actions to a PushRuleVectorState.
+     *
+     * Determines whether a content rule is in the PushRuleVectorState.ON
+     * category or in PushRuleVectorState.LOUD, regardless of its enabled
+     * state. Returns null if it does not match these categories.
+     */
+    contentRuleVectorStateKind: function(rule) {
+        var decoded = NotificationUtils.decodeActions(rule.actions);
+
+        if (!decoded) {
+            return null;
+        }
+
+        // Count tweaks to determine if it is a ON or LOUD rule
+        var tweaks = 0;
+        if (decoded.sound) {
+            tweaks++;
+        }
+        if (decoded.highlight) {
+            tweaks++;
+        }
+        var stateKind = null;
+        switch (tweaks) {
+            case 0:
+                stateKind = this.ON;
+                break;
+            case 2:
+                stateKind = this.LOUD;
+                break;
+        }
+        return stateKind;
+    },
+};
+
+for (var k in states) {
+    module.exports[k] = states[k];
+};