mobisocial.musubi.ui.util.FeedHTML.java Source code

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Here is the source code for mobisocial.musubi.ui.util.FeedHTML.java
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/*
 * Copyright 2012 The Stanford MobiSocial Laboratory
 *
 * 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 mobisocial.musubi.ui.util;

import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.PrintWriter;

import mobisocial.musubi.model.MFeed;
import mobisocial.musubi.model.MIdentity;
import mobisocial.musubi.model.MObject;
import mobisocial.musubi.model.helpers.FeedManager;
import mobisocial.musubi.model.helpers.IdentitiesManager;
import mobisocial.musubi.objects.PictureObj;
import mobisocial.musubi.objects.StatusObj;

import org.apache.commons.lang3.StringEscapeUtils;
import org.json.JSONObject;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.util.Base64;
import android.util.Log;

public class FeedHTML {

    public static void writeHeader(FileOutputStream fo, FeedManager feedManager, MFeed feed) {
        PrintWriter w = new PrintWriter(fo);
        w.print("<html>");
        w.print("<head>");
        w.print("<title>");
        w.print(StringEscapeUtils.escapeHtml4(UiUtil.getFeedNameFromMembersList(feedManager, feed)));
        w.print("</title>");
        w.print("</head>");
        w.print("<body>");
        w.print("<h1>");
        w.print(StringEscapeUtils.escapeHtml4(UiUtil.getFeedNameFromMembersList(feedManager, feed)));
        w.print("</h1>");
        w.flush();
    }

    public static void writeObj(FileOutputStream fo, Context context, IdentitiesManager identitiesManager,
            MObject object) {
        //TODO: it would be better to put the export code inside the obj handlers
        MIdentity ident = identitiesManager.getIdentityForId(object.identityId_);
        if (ident == null)
            return;
        PrintWriter w = new PrintWriter(fo);
        w.print("<div>");
        w.print("<div style=\"float:left\">");

        w.print("<img src=\"data:image/jpeg;base64,");
        Bitmap thumb = UiUtil.safeGetContactThumbnail(context, identitiesManager, ident);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        thumb.compress(CompressFormat.JPEG, 90, bos);
        w.print(Base64.encodeToString(bos.toByteArray(), Base64.DEFAULT));
        w.print("\">");

        w.print("</div>");
        w.print("<div>");
        w.print("<h6>");
        w.print(UiUtil.safeNameForIdentity(ident));
        w.print("</h6>");

        try {
            if (object.type_.equals(StatusObj.TYPE)) {
                w.print(new JSONObject(object.json_).getString(StatusObj.TEXT));
            } else if (object.type_.equals(PictureObj.TYPE)) {
                w.print("<img src=\"data:image/jpeg;base64,");
                w.print(Base64.encodeToString(object.raw_, Base64.DEFAULT));
                w.print("\">");
            } else {
                throw new RuntimeException("unsupported type " + object.type_);
            }

        } catch (Throwable t) {
            Log.e("HTML EXPORT", "failed to process obj", t);
            w.print("<i>only visibile in musubi</i>");
        }
        w.print("</div>");
        w.print("</div>");

        w.print("</body>");
        w.print("</html>");
        w.flush();
    }

    public static void writeFooter(FileOutputStream fo) {
        PrintWriter w = new PrintWriter(fo);
        w.print("</body>");
        w.print("</html>");
        w.flush();
    }

}