2011-02-09 01:50:30 +00:00
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.emailcommon.utility;
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import com.android.email.provider.EmailContent;
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2011-02-10 02:47:43 +00:00
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import com.android.emailcommon.internet.MimeHeader;
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import com.android.emailcommon.internet.MimeUtility;
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import com.android.emailcommon.mail.MessagingException;
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import com.android.emailcommon.mail.Part;
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import com.android.emailcommon.mail.Snippet;
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2011-02-09 01:50:30 +00:00
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import android.text.TextUtils;
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import java.util.ArrayList;
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public class ConversionUtilities {
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/**
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* Values for HEADER_ANDROID_BODY_QUOTED_PART to tag body parts
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*/
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public static final String BODY_QUOTED_PART_REPLY = "quoted-reply";
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public static final String BODY_QUOTED_PART_FORWARD = "quoted-forward";
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public static final String BODY_QUOTED_PART_INTRO = "quoted-intro";
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/**
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* Helper function to append text to a StringBuffer, creating it if necessary.
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* Optimization: The majority of the time we are *not* appending - we should have a path
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* that deals with single strings.
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*/
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private static StringBuffer appendTextPart(StringBuffer sb, String newText) {
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if (newText == null) {
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return sb;
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}
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else if (sb == null) {
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sb = new StringBuffer(newText);
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} else {
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if (sb.length() > 0) {
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sb.append('\n');
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}
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sb.append(newText);
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}
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return sb;
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}
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/**
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* Copy body text (plain and/or HTML) from MimeMessage to provider Message
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*/
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public static boolean updateBodyFields(EmailContent.Body body,
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EmailContent.Message localMessage, ArrayList<Part> viewables)
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throws MessagingException {
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body.mMessageKey = localMessage.mId;
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StringBuffer sbHtml = null;
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StringBuffer sbText = null;
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StringBuffer sbHtmlReply = null;
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StringBuffer sbTextReply = null;
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StringBuffer sbIntroText = null;
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for (Part viewable : viewables) {
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String text = MimeUtility.getTextFromPart(viewable);
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String[] replyTags = viewable.getHeader(MimeHeader.HEADER_ANDROID_BODY_QUOTED_PART);
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String replyTag = null;
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if (replyTags != null && replyTags.length > 0) {
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replyTag = replyTags[0];
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}
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// Deploy text as marked by the various tags
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boolean isHtml = "text/html".equalsIgnoreCase(viewable.getMimeType());
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if (replyTag != null) {
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boolean isQuotedReply = BODY_QUOTED_PART_REPLY.equalsIgnoreCase(replyTag);
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boolean isQuotedForward = BODY_QUOTED_PART_FORWARD.equalsIgnoreCase(replyTag);
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boolean isQuotedIntro = BODY_QUOTED_PART_INTRO.equalsIgnoreCase(replyTag);
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if (isQuotedReply || isQuotedForward) {
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if (isHtml) {
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sbHtmlReply = appendTextPart(sbHtmlReply, text);
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} else {
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sbTextReply = appendTextPart(sbTextReply, text);
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}
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// Set message flags as well
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localMessage.mFlags &= ~EmailContent.Message.FLAG_TYPE_MASK;
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localMessage.mFlags |= isQuotedReply
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? EmailContent.Message.FLAG_TYPE_REPLY
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: EmailContent.Message.FLAG_TYPE_FORWARD;
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continue;
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}
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if (isQuotedIntro) {
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sbIntroText = appendTextPart(sbIntroText, text);
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continue;
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}
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}
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// Most of the time, just process regular body parts
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if (isHtml) {
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sbHtml = appendTextPart(sbHtml, text);
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} else {
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sbText = appendTextPart(sbText, text);
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}
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}
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// write the combined data to the body part
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if (!TextUtils.isEmpty(sbText)) {
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String text = sbText.toString();
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body.mTextContent = text;
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localMessage.mSnippet = Snippet.fromPlainText(text);
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}
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if (!TextUtils.isEmpty(sbHtml)) {
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String text = sbHtml.toString();
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body.mHtmlContent = text;
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if (localMessage.mSnippet == null) {
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localMessage.mSnippet = Snippet.fromHtmlText(text);
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}
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}
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if (sbHtmlReply != null && sbHtmlReply.length() != 0) {
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body.mHtmlReply = sbHtmlReply.toString();
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}
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if (sbTextReply != null && sbTextReply.length() != 0) {
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body.mTextReply = sbTextReply.toString();
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}
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if (sbIntroText != null && sbIntroText.length() != 0) {
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body.mIntroText = sbIntroText.toString();
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}
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return true;
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}
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}
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