package com.hyrt.cei.ui.common;
import java.net.HttpURLConnection;
import java.net.URL;
import com.hyrt.cei.R;
import com.hyrt.cei.application.CeiApplication;
import com.hyrt.cei.db.DataHelper;
import com.hyrt.cei.predownload.DownloadThreadManager;
import com.hyrt.cei.ui.phonestudy.PreloadActivity;
import com.hyrt.cei.util.EncryptDecryption;
import com.hyrt.cei.util.MyTools;
import com.hyrt.cei.util.XmlUtil;
import com.hyrt.cei.vo.Courseware;
import com.hyrt.cei.vo.Preload;
import com.hyrt.cei.webservice.service.Service;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.Process;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.webkit.JsResult;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebSettings.PluginState;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.TextView;
import android.widget.Toast;
public class WebViewUtil extends Activity {
private WebView webView;
private String path;
private String classId;
// 课件入口文件名称
private Courseware courseware;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview);
webView = (WebView) findViewById(R.id.web_view);
findViewById(R.id.back_btn).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
if (getIntent().getBooleanExtra("isRecord", false)) {
webView.loadUrl("javascript:saveTimePointForClass()");
}
WebViewUtil.this.finish();
}
});
webView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(final WebView view,
final String url) {
webView.loadUrl(url);
return true;
}
@Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
new Handler().post(new Runnable() {
@Override
public void run() {
try {
findViewById(R.id.web_view)
.setVisibility(View.GONE);
MyTools.exitShow(WebViewUtil.this, WebViewUtil.this
.getWindow().getDecorView(),
"此资源无法正常查看..");
} catch (Exception e) {
e.printStackTrace();
}
}
});
super.onReceivedError(view, errorCode, description, failingUrl);
}
});
DataHelper dataHelper = ((CeiApplication) (WebViewUtil.this
.getApplication())).dataHelper;
path = getIntent().getStringExtra("path");
// 如果是读本地课件的话
courseware = (Courseware) getIntent().getSerializableExtra("class");
if (courseware == null) {
classId = getIntent().getStringExtra("classId");
} else {
classId = courseware.getClassId();
}
if (!path.contains("ftp") && !path.contains("file:///")) {
// 设置可以支持缩放
webView.getSettings().setSupportZoom(true);
findViewById(R.id.phone_study_playpage_Ll).setVisibility(View.GONE);
if (!((CeiApplication) this.getApplication()).isNet()) {
MyTools.popExitActivity(this);
return;
}
new AdressLoadTask().execute((Void) null);
} else if ((classId != null && !classId.equals("") && path != null && path
.contains("file:///"))) {
DownloadThreadManager.clearThread();
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(true);
((TextView) findViewById(R.id.phone_study_playpage_Ll))
.setText("离线学习");
Courseware cw = new Courseware();
cw.setClassId(classId);
webView.requestFocus();
webView.requestFocusFromTouch();
courseware = cw;
loadLocalVideoByGetKey();
webView.setWebChromeClient(new MyWebChromeClient());
} else if (dataHelper.getPreload(classId) != null
&& dataHelper.getPreload(classId).getLoadFinish() == 1) {
DownloadThreadManager.clearThread();
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(true);
Preload preload = dataHelper.getPreload(classId);
path = "file:///"
+ preload.getLoadLocalPath().replace(
PreloadActivity.FLASH_POSTFIX,
PreloadActivity.FLASH_GATE);
((TextView) findViewById(R.id.phone_study_playpage_Ll))
.setText("离线学习");
webView.requestFocus();
webView.requestFocusFromTouch();
loadLocalVideoByGetKey();
webView.setWebChromeClient(new MyWebChromeClient());
} else if (classId != null && !classId.equals("") && path != null
&& path.contains("http://")) {
DownloadThreadManager.clearThread();
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(true);
((TextView) findViewById(R.id.phone_study_playpage_Ll))
.setText("在线学习");
if (!((CeiApplication) this.getApplication()).isNet()) {
MyTools.popExitActivity(this);
return;
}
if (dataHelper.getStudyRecord(courseware)) {
path += "?userid="
+ ((CeiApplication) (this.getApplication())).columnEntry
.getUserId() + "&classid=" + classId
+ "&native=0" + "&location="
+ courseware.getTimePoint() + "&totaltime="
+ courseware.getStudyTime();
} else {
path += "?userid="
+ ((CeiApplication) (this.getApplication())).columnEntry
.getUserId() + "&classid=" + classId
+ "&native=0" + "&location=0" + "&totaltime=0";
}
validStatusCode(path);
}
}
private void validStatusCode(final String url) {
findViewById(R.id.webview_progress).setVisibility(View.VISIBLE);
findViewById(R.id.web_view).setVisibility(View.GONE);
final Handler handler = new Handler() {
@Override
public void dispatchMessage(Message msg) {
findViewById(R.id.webview_progress).setVisibility(View.GONE);
switch (msg.arg1) {
case 1:
findViewById(R.id.web_view).setVisibility(View.GONE);
new Handler().post(new Runnable() {
@Override
public void run() {
MyTools.exitShow(WebViewUtil.this, WebViewUtil.this
.getWindow().getDecorView(), "无法查看,资源不存在..");
}
});
break;
case 2:
findViewById(R.id.web_view).setVisibility(View.VISIBLE);
if(path != null)
webView.loadUrl(path);
webView.requestFocus();
webView.requestFocusFromTouch();
webView.setWebChromeClient(new MyWebChromeClient());
break;
}
super.dispatchMessage(msg);
}
};
new Thread(new Runnable() {
@Override
public void run() {
try {
HttpURLConnection.setFollowRedirects(false);
URL validatedURL = new URL(url);
HttpURLConnection con = (HttpURLConnection) validatedURL
.openConnection();
con.setRequestMethod("HEAD");
int responseCode = con.getResponseCode();
if (responseCode == 404 || responseCode == 405
|| responseCode == 504) {
Message msg = handler.obtainMessage();
msg.arg1 = 1;
handler.sendMessage(msg);
} else {
Message msg = handler.obtainMessage();
msg.arg1 = 2;
handler.sendMessage(msg);
}
} catch (Exception e) {
}
}
}).start();
}
Handler handler = new Handler() {
@Override
public void dispatchMessage(Message msg) {
DataHelper dataHelper = ((CeiApplication) (WebViewUtil.this
.getApplication())).dataHelper;
if (dataHelper.getStudyRecord(courseware)) {
path += "?userid="
+ ((CeiApplication) (WebViewUtil.this.getApplication())).columnEntry
.getUserId() + "&classid=" + classId
+ "&native=1" + "&location="
+ courseware.getTimePoint() + "&totaltime="
+ courseware.getStudyTime();
} else {
path += "?userid="
+ ((CeiApplication) (WebViewUtil.this.getApplication())).columnEntry
.getUserId() + "&classid=" + classId
+ "&native=1" + "&location=0" + "&totaltime=0";
}
webView.loadUrl(path);
webView.requestFocus();
webView.requestFocusFromTouch();
}
};
/**
* 获取解密码后加载本地视频
*/
private void loadLocalVideoByGetKey() {
// 根据课件id，获取密钥并解密
new Thread(new Runnable() {
@Override
public void run() {
// 从数据库获取密钥
DataHelper dataHelper = ((CeiApplication) (WebViewUtil.this
.getApplication())).dataHelper;
Preload preload = dataHelper.getPreload(classId);
if (preload != null) {
try {
EncryptDecryption.DecryptionCourseware(
path.replace(PreloadActivity.FLASH_GATE, "")
.replace("file:////", ""), preload
.getPassKey());
} catch (Exception e) {
e.printStackTrace();
}
handler.sendMessage(handler.obtainMessage());
}
}
}).start();
}
final class MyWebChromeClient extends WebChromeClient {
@Override
public boolean onJsAlert(WebView view, String url, String message,
JsResult result) {
// 让浏览器弹出框包含cei_location，并把学习记录保存在数据库里.
Toast.makeText(WebViewUtil.this, message, Toast.LENGTH_LONG).show();
try {
if (courseware.getStudyTime() == null)
courseware.setStudyTime("0");
if (courseware.getTimePoint() == null)
courseware.setTimePoint("0");
int studyTime = 0;
String studyTimeStr = message.split(":")[1];
if (studyTimeStr.contains(".")) {
studyTime = Integer.parseInt(studyTimeStr.substring(0,
studyTimeStr.lastIndexOf(".")));
} else {
studyTime = Integer.parseInt(studyTimeStr);
}
courseware.setStudyTime(studyTime + "");
courseware.setTimePoint(message.split(":")[0]);
if (!path.contains("http://")) {
courseware.setUploadTime(studyTime + courseware.getUploadTime());
String str = WebViewUtil.this.getIntent().getStringExtra(
"bdclass");
if (str != null && str.contains("讲师姓名")
&& str.contains("发布时间") && str.contains("|")) {
courseware.setName(str.substring(str.indexOf("|") + 1));
courseware.setTeacherName(str.substring(
str.indexOf("讲师姓名") + 7, str.indexOf("发布时间")));
courseware.setProTime(str.substring(
str.indexOf("发布时间") + 7, str.indexOf("|")));
courseware.setClassLength(getIntent().getStringExtra(
"classLength"));
}
if ("-1".equals(courseware.getTimePoint())) {
courseware.setIscompleted("1");
}
courseware.setOrderTime(500);
} else {
courseware.setUploadTime(0);
}
CeiApplication ceiApplication = (CeiApplication) (WebViewUtil.this
.getApplication());
// 去学习记录的数据库里查询并更新相应的课件学习时间
ceiApplication.dataHelper.insertOrUpdateStudyRecord(courseware);
} catch (Exception e) {
e.printStackTrace();
}
result.confirm();
return true;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK
&& getIntent().getBooleanExtra("isRecord", false)) {
webView.loadUrl("javascript:saveTimePointForClass()");
}
return super.onKeyDown(keyCode, event);
}
@Override
protected void onDestroy() {
webView.destroy();
// 对课件进行再次加密
if (path != null && path.contains("file://")) {
try {
EncryptDecryption
.EncryptCourseware(path
.replace(PreloadActivity.FLASH_GATE, "")
.replace("file:////", "")
.substring(
0,
path.replace(
PreloadActivity.FLASH_GATE, "")
.replace("file:////", "")
.indexOf("?")));
} catch (Exception e) {
e.printStackTrace();
}
}
//Process.killProcess(Process.myPid());
super.onDestroy();
}
private PowerManager.WakeLock wakeLock = null;
// 获取锁
public void acquireWakeLock(Context context) {
if (wakeLock == null) {
PowerManager powerManager = (PowerManager) (context
.getSystemService(Context.POWER_SERVICE));
wakeLock = powerManager.newWakeLock(
PowerManager.SCREEN_DIM_WAKE_LOCK, "My Tag");
wakeLock.acquire();
}
}
// 释放锁
public void releaseWakeLock() {
if (wakeLock != null && wakeLock.isHeld()) {
wakeLock.release();
wakeLock = null;
}
}
@Override
public void onResume() {
acquireWakeLock(this);
super.onResume();
}
@Override
public void onPause() {
webView.loadUrl("javascript:setVideoPause()");
releaseWakeLock();
super.onPause();
}
private String result;
@SuppressLint("NewApi")
public class AdressLoadTask extends AsyncTask {
@Override
protected void onPostExecute(Object result) {
path = XmlUtil.parseAddress(result.toString());
if (path.equals("-1")) {
MyTools.exitShow(WebViewUtil.this, WebViewUtil.this
.getWindow().getDecorView(), "此版本下无门户网站！");
return;
}
webView.loadUrl(path);
webView.requestFocus();
webView.requestFocusFromTouch();
super.onPostExecute(result);
}
@Override
protected Object doInBackground(Object... arg0) {
try {
result = Service
.queryFunctionAddress(((CeiApplication) WebViewUtil.this
.getApplication()).columnEntry
.getColumnEntryChilds().get(0).getId());
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}
}