Diff: dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/devicemodule/screen/ScreenDeviceModule.java

Revision:

45:2aa9f933c8d2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/devicemodule/screen/ScreenDeviceModule.java	Tue Jul 18 16:34:48 2017 +0800
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2017 Baidu, Inc. All Rights Reserved.
+ * 
+ * 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.
+ */
+package com.baidu.duer.dcs.devicemodule.screen;
+
+import com.baidu.duer.dcs.devicemodule.screen.message.HtmlPayload;
+import com.baidu.duer.dcs.devicemodule.screen.message.LinkClickedPayload;
+import com.baidu.duer.dcs.framework.BaseDeviceModule;
+import com.baidu.duer.dcs.framework.IMessageSender;
+import com.baidu.duer.dcs.framework.message.ClientContext;
+import com.baidu.duer.dcs.framework.message.Directive;
+import com.baidu.duer.dcs.framework.message.Event;
+import com.baidu.duer.dcs.framework.message.Header;
+import com.baidu.duer.dcs.framework.message.MessageIdHeader;
+import com.baidu.duer.dcs.framework.message.Payload;
+import com.baidu.duer.dcs.systeminterface.IWebView;
+
+/**
+ * Screen模块处理并执行服务下发的指令，如HtmlView指令，以及发送事件，如LinkClicked事件
+ * <p>
+ * Created by wuruisheng on 2017/5/31.
+ */
+public class ScreenDeviceModule extends BaseDeviceModule {
+    private final IWebView webView;
+
+    public ScreenDeviceModule(IWebView webView, IMessageSender messageSender) {
+        super(ApiConstants.NAMESPACE, messageSender);
+        this.webView = webView;
+        webView.addWebViewListener(new IWebView.IWebViewListener() {
+            @Override
+            public void onLinkClicked(String url) {
+                sendLinkClickedEvent(url);
+            }
+        });
+    }
+
+    @Override
+    public ClientContext clientContext() {
+        return null;
+    }
+
+    @Override
+    public void handleDirective(Directive directive) {
+        String name = directive.header.getName();
+        if (name.equals(ApiConstants.Directives.HtmlView.NAME)) {
+            handleHtmlPayload(directive.getPayload());
+        }
+    }
+
+    @Override
+    public void release() {
+    }
+
+    private void handleHtmlPayload(Payload payload) {
+        if (payload instanceof HtmlPayload) {
+            HtmlPayload htmlPayload = (HtmlPayload) payload;
+            webView.loadUrl(htmlPayload.getUrl());
+        }
+    }
+
+    private void sendLinkClickedEvent(String url) {
+        String name = ApiConstants.Events.LinkClicked.NAME;
+        Header header = new MessageIdHeader(getNameSpace(), name);
+
+        LinkClickedPayload linkClickedPayload = new LinkClickedPayload(url);
+        Event event = new Event(header, linkClickedPayload);
+        if (messageSender != null) {
+            messageSender.sendEvent(event);
+        }
+    }
+}