Merge pull request #4092 from matrix-org/t3chguy/persist

Use Persistent Storage where possible

src/components/structures/MatrixChat.js

@@ -65,6 +65,7 @@ import { ThemeWatcher } from "../../theme";
 import { storeRoomAliasInCache } from '../../RoomAliasCache';
 import { defer } from "../../utils/promise";
 import ToastStore from "../../stores/ToastStore";
+import * as StorageManager from "../../utils/StorageManager";
 
 /** constants for MatrixChat.state.view */
 export const VIEWS = {
@@ -1193,6 +1194,8 @@ export default createReactClass({
         } else {
             this._showScreenAfterLogin();
         }
+
+        StorageManager.tryPersistStorage();
     },
 
     _showScreenAfterLogin: function() {

src/rageshake/submit-rageshake.js

@@ -106,6 +106,25 @@ export default async function sendBugReport(bugReportEndpoint, opts) {
         body.append('enabled_labs', enabledLabs.join(', '));
     }
 
+    // add storage persistence/quota information
+    if (navigator.storage && navigator.storage.persisted) {
+        try {
+            body.append("storageManager_persisted", await navigator.storage.persisted());
+        } catch (e) {}
+    }
+    if (navigator.storage && navigator.storage.estimate) {
+        try {
+            const estimate = await navigator.storage.estimate();
+            body.append("storageManager_quota", estimate.quota);
+            body.append("storageManager_usage", estimate.usage);
+            if (estimate.usageDetails) {
+                Object.keys(estimate.usageDetails).forEach(k => {
+                    body.append(`storageManager_usage_${k}`, estimate.usageDetails[k]);
+                });
+            }
+        } catch (e) {}
+    }
+
     if (opts.sendLogs) {
         progressCallback(_t("Collecting logs"));
         const logs = await rageshake.getLogsForReport();

src/utils/StorageManager.js

@@ -43,6 +43,16 @@ function track(action) {
     Analytics.trackEvent("StorageManager", action);
 }
 
+export function tryPersistStorage() {
+    if (navigator.storage && navigator.storage.persist) {
+        navigator.storage.persist().then(persistent => {
+            console.log("StorageManager: Persistent?", persistent);
+        });
+    } else {
+        console.log("StorageManager: Persistence unsupported");
+    }
+}
+
 export async function checkConsistency() {
     log("Checking storage consistency");
     log(`Local storage supported? ${!!localStorage}`);