package com.weibo.sdk.android;
import java.io.IOException;
import java.io.InputStream;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.AssetManager;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.NinePatch;
import android.graphics.Rect;
import android.graphics.drawable.NinePatchDrawable;
import android.net.http.SslError;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.Xml;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.webkit.SslErrorHandler;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
import android.widget.RelativeLayout;
import com.weibo.sdk.android.util.Utility;
/**
* 用来显示用户认证界面的dialog，封装了一个webview，通过redirect地址中的参数来获取accesstoken
* @author xiaowei6@staff.sina.com.cn
*
*/
public class WeiboDialog extends Dialog {
static FrameLayout.LayoutParams FILL = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT);
private String mUrl;
private WeiboAuthListener mListener;
private ProgressDialog mSpinner;
private WebView mWebView;
private RelativeLayout webViewContainer;
private RelativeLayout mContent;
private final static String TAG = "Weibo-WebView";
private static int theme=android.R.style.Theme_Translucent_NoTitleBar;
private static int left_margin=0;
private static int top_margin=0;
private static int right_margin=0;
private static int bottom_margin=0;
public WeiboDialog(Context context, String url, WeiboAuthListener listener) {
super(context,theme);
mUrl = url;
mListener = listener;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mSpinner = new ProgressDialog(getContext());
mSpinner.requestWindowFeature(Window.FEATURE_NO_TITLE);
mSpinner.setMessage("Loading...");
mSpinner.setOnKeyListener(new OnKeyListener() {
@Override
public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
onBack();
return false;
}
});
requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFeatureDrawableAlpha(Window.FEATURE_OPTIONS_PANEL, 0);
mContent = new RelativeLayout(getContext());
setUpWebView();
addContentView(mContent, new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
}
protected void onBack() {
try {
mSpinner.dismiss();
if (null != mWebView) {
mWebView.stopLoading();
mWebView.destroy();
}
} catch (Exception e) {
}
dismiss();
}
private void setUpWebView() {
webViewContainer = new RelativeLayout(getContext());
mWebView = new WebView(getContext());
mWebView.setVerticalScrollBarEnabled(false);
mWebView.setHorizontalScrollBarEnabled(false);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.setWebViewClient(new WeiboDialog.WeiboWebViewClient());
mWebView.loadUrl(mUrl);
mWebView.setLayoutParams(FILL);
mWebView.setVisibility(View.INVISIBLE);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT);
RelativeLayout.LayoutParams lp0 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT);
mContent.setBackgroundColor(Color.TRANSPARENT);
AssetManager asseets=WeiboDialog.this.getContext().getAssets();
InputStream is=null;
try {
try {
is=asseets.open("weibosdk_dialog_bg.9.png");
DisplayMetrics dm = this.getContext().getResources()
.getDisplayMetrics();
float density=dm.density;
lp0.leftMargin =(int) (10*density);
lp0.topMargin = (int) (10*density);
lp0.rightMargin =(int) (10*density);
lp0.bottomMargin = (int) (10*density);
} catch (Exception e) {
e.printStackTrace();
}
if(is==null){
webViewContainer.setBackgroundResource(R.drawable.weibosdk_dialog_bg);
}
else{
Bitmap bitmap = BitmapFactory.decodeStream(is);
NinePatchDrawable npd=new NinePatchDrawable(bitmap, bitmap.getNinePatchChunk(), new Rect(0,0,0,0), null);
webViewContainer.setBackgroundDrawable(npd);
}
} catch (Exception e) {
e.printStackTrace();
}finally{
if(is!=null){
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
webViewContainer.addView(mWebView,lp0);
webViewContainer.setGravity(Gravity.CENTER);
if(parseDimens()){
lp.leftMargin = left_margin;
lp.topMargin = top_margin;
lp.rightMargin =right_margin;
lp.bottomMargin = bottom_margin;
}
else{
Resources resources = getContext().getResources();
lp.leftMargin=resources.getDimensionPixelSize(R.dimen.weibosdk_dialog_left_margin);
lp.rightMargin=resources.getDimensionPixelSize(R.dimen.weibosdk_dialog_right_margin);
lp.topMargin=resources.getDimensionPixelSize(R.dimen.weibosdk_dialog_top_margin);
lp.bottomMargin=resources.getDimensionPixelSize(R.dimen.weibosdk_dialog_bottom_margin);
}
mContent.addView(webViewContainer, lp);
}
private class WeiboWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.d(TAG, "Redirect URL: " + url);
if (url.startsWith("sms:")) { //针对webview里的短信注册流程，需要在此单独处理sms协议
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("address", url.replace("sms:", ""));
sendIntent.setType("vnd.android-dir/mms-sms");
WeiboDialog.this.getContext().startActivity(sendIntent);
return true;
}
return super.shouldOverrideUrlLoading(view, url);
}
@Override
public void onReceivedError(WebView view, int errorCode, String description,
String failingUrl) {
super.onReceivedError(view, errorCode, description, failingUrl);
mListener.onError(new WeiboDialogError(description, errorCode, failingUrl));
WeiboDialog.this.dismiss();
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
Log.d(TAG, "onPageStarted URL: " + url);
if (url.startsWith(Weibo.redirecturl)) {
handleRedirectUrl(view, url);
view.stopLoading();
WeiboDialog.this.dismiss();
return;
}
super.onPageStarted(view, url, favicon);
mSpinner.show();
}
@Override
public void onPageFinished(WebView view, String url) {
Log.d(TAG, "onPageFinished URL: " + url);
super.onPageFinished(view, url);
if (mSpinner.isShowing()) {
mSpinner.dismiss();
}
mWebView.setVisibility(View.VISIBLE);
}
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed();
}
}
private void handleRedirectUrl(WebView view, String url) {
Bundle values = Utility.parseUrl(url);
String error = values.getString("error");
String error_code = values.getString("error_code");
if (error == null && error_code == null) {
mListener.onComplete(values);
} else if (error.equals("access_denied")) {
// 用户或授权服务器拒绝授予数据访问权限
mListener.onCancel();
} else {
if(error_code==null){
mListener.onWeiboException(new WeiboException(error, 0));
}
else{
mListener.onWeiboException(new WeiboException(error, Integer.parseInt(error_code)));
}
}
}
private boolean parseDimens(){
boolean ret=false;
AssetManager asseets=this.getContext().getAssets();
DisplayMetrics dm = this.getContext().getResources()
.getDisplayMetrics();
float density=dm.density;
InputStream is=null;
try {
is=asseets.open("values/dimens.xml");
XmlPullParser xmlpull = Xml.newPullParser();
try {
xmlpull.setInput(is,"utf-8");
int eventCode = xmlpull.getEventType();
ret=true;
while(eventCode!=XmlPullParser.END_DOCUMENT) {
switch (eventCode)
{
case XmlPullParser.START_TAG:
if(xmlpull.getName().equals("dimen")){
String name=xmlpull.getAttributeValue(null, "name");
if("weibosdk_dialog_left_margin".equals(name)){
String value=xmlpull.nextText();
left_margin=(int)(Integer.parseInt(value)*density);
}
else if("weibosdk_dialog_top_margin".equals(name)){
String value=xmlpull.nextText();
top_margin=(int)(Integer.parseInt(value)*density);
}
else if("weibosdk_dialog_right_margin".equals(name)){
String value=xmlpull.nextText();
right_margin=(int)(Integer.parseInt(value)*density);
}
else if("weibosdk_dialog_bottom_margin".equals(name)){
String value=xmlpull.nextText();
bottom_margin=(int)(Integer.parseInt(value)*density);
}
}
break;
}
eventCode = xmlpull.next();//没有结束xml文件就推到下个进行解析
}
} catch (XmlPullParserException e) {
e.printStackTrace();
}
} catch (IOException e) {
e.printStackTrace();
}finally{
if(is!=null){
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return ret;
}
}