h5:add storage plugin

doric-h5/src/plugins/StoragePlugin.ts

@@ -0,0 +1,41 @@
+import { DoricPlugin } from "../DoricPlugin";
+
+export class StoragePlugin extends DoricPlugin {
+    setItem(args: {
+        zone?: string,
+        key: string,
+        value: string
+    }) {
+        localStorage.setItem(`${args.zone}_${args.key}`, args.value)
+        return Promise.resolve()
+    }
+    getItem(args: {
+        zone?: string,
+        key: string,
+    }) {
+        return Promise.resolve(localStorage.getItem(`${args.zone}_${args.key}`))
+    }
+
+    remove(args: {
+        zone?: string,
+        key: string,
+    }) {
+        localStorage.removeItem(`${args.zone}_${args.key}`)
+        return Promise.resolve()
+    }
+    clear(args: {
+        zone: string,
+    }) {
+        let removingKeys = []
+        for (let i = 0; i < localStorage.length; i++) {
+            const key = localStorage.key(i)
+            if (key && key.startsWith(`${args.zone}_`)) {
+                removingKeys.push(key)
+            }
+        }
+        removingKeys.forEach(e => {
+            localStorage.removeItem(e)
+        })
+        return Promise.resolve()
+    }
+}