+ SessionStorageActions

src/js/actions/SessionStorageActions.js

@@ -0,0 +1,43 @@
+/* @flow */
+'use strict';
+
+import type { State as SendFormState } from '../reducers/SendFormReducer';
+
+const PREFIX: string = 'trezor:draft-tx:';
+
+export const save = (location: string, state: SendFormState): void => {
+
+    if (typeof window.localStorage === 'undefined') return;
+
+    if (!state.untouched) {
+        try {
+            window.sessionStorage.setItem(`${PREFIX}${location}`, JSON.stringify(state) );
+        } catch (error) {
+            console.error("Saving sessionStorage error: " + error)
+        }
+    }
+}
+
+export const load = (location: string): ?SendFormState => {
+
+    if (typeof window.localStorage === 'undefined') return;
+
+    try {
+        const value: string = window.sessionStorage.getItem(`${PREFIX}${location}`);
+        return JSON.parse(value);
+    } catch (error) {
+        console.error("Loading sessionStorage error: " + error)
+    }
+
+    return;
+}
+
+export const clear = (location: string) => {
+    if (typeof window.localStorage === 'undefined') return;
+
+    try {
+        window.sessionStorage.removeItem(`${PREFIX}${location}`);
+    } catch (error) {
+        console.error("Clearing sessionStorage error: " + error)
+    }
+}