/*
Copyright 2012-2013, Polyvi Inc. (http://polyvi.github.io/openxface)
This program is distributed under the terms of the GNU General Public License.
This file is part of xFace.
xFace is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
xFace is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with xFace. If not, see <http://www.gnu.org/licenses/>.
*/
package com.polyvi.xface.extension;
import java.io.File;
import java.util.Iterator;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.polyvi.xface.ams.XAppInstallListener;
import com.polyvi.xface.ams.XAppList;
import com.polyvi.xface.ams.XAppStartListenerImp;
import com.polyvi.xface.app.XIApplication;
import com.polyvi.xface.extension.XExtensionResult.Status;
import com.polyvi.xface.plugin.api.XIWebContext;
import com.polyvi.xface.util.XConstant;
public class XAmsExt extends XExtension {
/** AMS 提供给js用户的接口名字 */
private static final String COMMAND_LIST_INSTALLED_APPLICATIONS = "listInstalledApplications";
private static final String COMMAND_START_APPLICATION = "startApplication";
private static final String COMMAND_UNINSTALL_APPLICATION = "uninstallApplication";
private static final String COMMAND_INSTALL_APPLICATION = "installApplication";
private static final String COMMAND_UPDATE_APPLICATION = "updateApplication";
private static final String COMMAND_LIST_PRESET_APPLICATIONS = "listPresetAppPackages";
private static final String COMMAND_GET_START_APP_INFO = "getStartAppInfo";
/** 定义一些tag常量 */
private static final String TAG_APP_ID = "appid";
private static final String TAG_NAME = "name";
private static final String TAG_BACKGROUND_COLOR = "icon_background_color";
private static final String TAG_ICON = "icon";
private static final String TAG_VERSION = "version";
private static final String TAG_TYPE = "type";
private static final String TAG_HEIGHT = "height";
private static final String TAG_WIDTH = "width";
/** 应用管理器 */
private XAms mAms;
/**
* Ams扩展的初始化<br>
* 这里选择了重载init方法，而不是覆写init方法的原因，主要是在Ams扩展比较特殊，它不是通过配置文件加载的，
* 而是直接由引擎在XRuntime中默认加载进来的，为了不在XExtensionContext中暴露Ams相关对象，所以
* 选择覆写init方法，并添加了XAms对象作为参数
*
* @param extensionContext
* 扩展上下文环境
* @param ams
* 负责应用的安装/卸载/更新
*/
public void init(XExtensionContext extensionContext, XAms ams,
XIWebContext webContext) {
super.init(extensionContext, webContext);
mAms = ams;
}
/**
* 安装app
*
* @param webContext
* 调用该接口的应用对象
* @param packagePath
* 安装包路径
* @param callbackCtx
* callback上下文环境
*/
private void installApplication(XIWebContext webContext,
String packagePath, XCallbackContext callbackCtx) {
XAppInstallListener listener = new XAppInstallListener(callbackCtx);
mAms.installApp(webContext, packagePath, listener);
}
/**
* 更新app
*
* @param webContext
* 调用该接口的应用对象
* @param packagePath
* 更新包路径
* @param callbackCtx
* js回调的上下文环境
*/
private void updateApplication(XIWebContext webContext, String packagePath,
XCallbackContext callbackCtx) {
XAppInstallListener listener = new XAppInstallListener(callbackCtx);
mAms.updateApp(webContext, packagePath, listener);
}
/**
* 卸载application
*
* @param webContext
* 调用该接口的应用对象
* @param appId
* 需要卸载的应用id
* @param callbackCtx
* js回调上下文环境
*/
private void uninstallApplication(XIWebContext webContext, String appId,
XCallbackContext callbackCtx) {
XAppInstallListener listener = new XAppInstallListener(callbackCtx);
mAms.uninstallApp(appId, listener);
}
/**
* 启动一个应用程序
*
* @param appId
* 启动应用的id
*/
private void startApplication(XIWebContext webContext, String appId,
String params, XCallbackContext callbackCtx) {
final String fAppId = appId;
final XCallbackContext cbContext = callbackCtx;
final String fParams = params;
mExtensionContext.getSystemContext().runOnUiThread(new Runnable() {
public void run() {
// 由于会操作到UI，确保在UI线程中执行
XAppStartListenerImp startResult = new XAppStartListenerImp(
cbContext);
mAms.startApp(fAppId, fParams, startResult);
}
});
}
/**
* 列出系统已经安装过的应用程序
*
* @return 通过json数组的形式返回
*/
private JSONArray listInstalledApplication() {
JSONArray result = new JSONArray();
XAppList appList = mAms.getAppList();
Iterator<XIApplication> appIterator = appList.iterator();
while (appIterator.hasNext()) {
JSONObject obj = translateAppInfoToJson(appIterator.next());
result.put(obj);
}
return result;
}
private JSONObject translateAppInfoToJson(XIApplication app) {
JSONObject obj = new JSONObject();
try {
obj.put(TAG_APP_ID, app.getAppInfo().getAppId());
obj.put(TAG_NAME, app.getAppInfo().getName());
obj.put(TAG_BACKGROUND_COLOR, app.getAppInfo()
.getIconBackgroudColor());
obj.put(TAG_ICON, app.getAppIconUrl());
obj.put(TAG_VERSION, app.getAppInfo().getVersion());
obj.put(TAG_TYPE, app.getAppInfo().getType());
obj.put(TAG_WIDTH, app.getAppInfo().getWidth());
obj.put(TAG_HEIGHT, app.getAppInfo().getHeight());
} catch (JSONException e) {
e.printStackTrace();
}
return obj;
}
/**
* 列出预置安装包，每一项是预制安装包的路径，该路径是在默认app的workspace下面的pre_set目录中
* */
private JSONArray listPresetAppPackages() {
String[] presetApps = mAms.getPresetAppPackages(mWebContext
.getApplication().getWorkSpace());
JSONArray presetAppsJsonArray = new JSONArray();
if (null != presetApps) {
for (String presetAppName : presetApps) {
presetAppsJsonArray.put(XConstant.PRE_SET_APP_PACKAGE_DIR_NAME
+ File.separator + presetAppName);
}
}
return presetAppsJsonArray;
}
@Override
public void sendAsyncResult(String result) {
}
@Override
public boolean isAsync(String action) {
if (action.equals(COMMAND_INSTALL_APPLICATION)
|| action.equals(COMMAND_UNINSTALL_APPLICATION)
|| action.equals(COMMAND_UPDATE_APPLICATION)
|| action.equals(COMMAND_LIST_PRESET_APPLICATIONS)) {
return true;
}
return false;
}
@Override
public XExtensionResult exec(String action, JSONArray args,
XCallbackContext callbackCtx) throws JSONException {
XExtensionResult er = null;
if (action.equals(COMMAND_INSTALL_APPLICATION)) {
String packagePath = args.getString(0);
installApplication(mWebContext, packagePath, callbackCtx);
er = new XExtensionResult(Status.NO_RESULT);
} else if (action.equals(COMMAND_UNINSTALL_APPLICATION)) {
String appId = args.getString(0);
uninstallApplication(mWebContext, appId, callbackCtx);
er = new XExtensionResult(Status.NO_RESULT);
} else if (action.equals(COMMAND_START_APPLICATION)) {
String appId = args.getString(0);
String params = getStartParams(args);
startApplication(mWebContext, appId, params, callbackCtx);
er = new XExtensionResult(Status.NO_RESULT);
er.setKeepCallback(true);
} else if (action.equals(COMMAND_LIST_INSTALLED_APPLICATIONS)) {
JSONArray apps = listInstalledApplication();
er = new XExtensionResult(Status.OK, apps);
} else if (action.equals(COMMAND_UPDATE_APPLICATION)) {
String packagePath = args.getString(0);
updateApplication(mWebContext, packagePath, callbackCtx);
er = new XExtensionResult(Status.NO_RESULT);
} else if (COMMAND_LIST_PRESET_APPLICATIONS.equals(action)) {
JSONArray presetApps = listPresetAppPackages();
er = new XExtensionResult(Status.OK, presetApps);
} else if (action.equals(COMMAND_GET_START_APP_INFO)) {
JSONObject json = translateAppInfoToJson(mWebContext
.getApplication());
er = new XExtensionResult(Status.OK, json);
}
return er;
}
private String getStartParams(JSONArray args) throws JSONException {
String params = "";
int argLen = args.length();
if (argLen == 2) {
params = args.getString(1);
}
return params;
}
}