DashboardActivity.java

package kr.kdev.dg1s.biowiki.ui;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.SherlockActivity;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
import com.actionbarsherlock.view.Window;

import org.wordpress.passcodelock.AppLockManager;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

import kr.kdev.dg1s.biowiki.BioWiki;
import kr.kdev.dg1s.biowiki.R;
import kr.kdev.dg1s.biowiki.models.Blog;
import kr.kdev.dg1s.biowiki.util.AppLog;
import kr.kdev.dg1s.biowiki.util.BWWebChromeClient;
import kr.kdev.dg1s.biowiki.util.BWWebViewClient;

/**
 * Basic activity for displaying a WebView.
 */
public class DashboardActivity extends SherlockActivity {
    /**
     * Primary webview used to display content.
     */
    protected WebView mWebView;

    /**
     * Blog for which this activity is loading content.
     */
    protected Blog mBlog;

    @Override
    public void onCreate(Bundle savedInstanceState) {

        requestWindowFeature(Window.FEATURE_PROGRESS);

        super.onCreate(savedInstanceState);

        setContentView(R.layout.webview);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        setTitle(R.string.view_admin);

        ActionBar ab = getSupportActionBar();
        ab.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
        ab.setDisplayShowTitleEnabled(true);

        mWebView = (WebView) findViewById(R.id.webView);
        mWebView.getSettings().setUserAgentString(BioWiki.getUserAgent());
        mWebView.getSettings().setBuiltInZoomControls(true);
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);

        Bundle extras = getIntent().getExtras();
        if (extras.containsKey("blogID")) {
            try {
                mBlog = BioWiki.wpDB.instantiateBlogByLocalId(extras.getInt("blogID", -1));
            } catch (Exception e) {
                mBlog = BioWiki.getCurrentBlog();
            }
        }

        if (mBlog == null) {
            Toast.makeText(this, getResources().getText(R.string.blog_not_found),
                    Toast.LENGTH_SHORT).show();
            finish();
        }

        mWebView.setWebViewClient(new BWWebViewClient(mBlog));
        mWebView.setWebChromeClient(new BWWebChromeClient(this, (ProgressBar) findViewById(R.id.progress_bar)));

        mWebView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
        mWebView.getSettings().setSavePassword(false);

        loadDashboard();
    }


    private void loadDashboard() {
        String dashboardUrl = mBlog.getAdminUrl();
        loadAuthenticatedUrl(dashboardUrl);
    }

    /**
     * Load the specified URL in the webview.
     *
     * @param url URL to load in the webview.
     */
    protected void loadUrl(String url) {
        mWebView.loadUrl(url);
    }

    @Override
    public void onBackPressed() {

        if (mWebView != null && mWebView.canGoBack())
            mWebView.goBack();
        else
            super.onBackPressed();
    }

    /**
     * Get the URL of the WordPress login page.
     *
     * @return URL of the login page.
     */
    protected String getLoginUrl() {
        if (mBlog.getUrl().lastIndexOf("/") != -1) {
            return mBlog.getUrl().substring(0, mBlog.getUrl().lastIndexOf("/"))
                    + "/wp-login.php";
        } else {
            return mBlog.getUrl().replace("xmlrpc.php", "wp-login.php");
        }
    }

    /**
     * Login to the WordPress blog and load the specified URL.
     *
     * @param url URL to be loaded in the webview.
     */
    protected void loadAuthenticatedUrl(String url) {
        try {
            String postData = String.format("log=%s&pwd=%s&redirect_to=%s",
                    URLEncoder.encode(mBlog.getUsername(), "UTF-8"), URLEncoder.encode(mBlog.getPassword(), "UTF-8"),
                    URLEncoder.encode(url, "UTF-8"));
            mWebView.postUrl(getLoginUrl(), postData.getBytes());
        } catch (UnsupportedEncodingException e) {
            AppLog.e(AppLog.T.POSTS, e);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);
        MenuInflater inflater = getSupportMenuInflater();
        inflater.inflate(R.menu.dashboard, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(final MenuItem item) {
        if (mWebView == null)
            return false;

        int itemID = item.getItemId();
        if (itemID == R.id.menu_refresh) {
            mWebView.reload();
            return true;
        } else if (itemID == R.id.menu_browser) {
            String url = mWebView.getUrl();
            if (url != null) {
                Uri uri = Uri.parse(url);
                if (uri != null) {
                    Intent i = new Intent(Intent.ACTION_VIEW);
                    i.setData(uri);
                    startActivity(i);
                    AppLockManager.getInstance().setExtendedTimeout();
                }
            }
            return true;
        } else if (itemID == android.R.id.home) {
            finish();
        }

        return super.onOptionsItemSelected(item);
    }

}