mirror of
https://github.com/moparisthebest/k-9
synced 2024-12-19 06:12:25 -05:00
352 lines
13 KiB
Java
352 lines
13 KiB
Java
package com.fsck.k9.view;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import org.apache.commons.io.IOUtils;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.net.Uri;
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import android.os.Environment;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.view.View.OnLongClickListener;
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import android.widget.Button;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import android.widget.TextView;
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import android.widget.Toast;
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import com.fsck.k9.Account;
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import com.fsck.k9.K9;
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import com.fsck.k9.R;
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import com.fsck.k9.controller.MessagingController;
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import com.fsck.k9.controller.MessagingListener;
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import com.fsck.k9.helper.MediaScannerNotifier;
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import com.fsck.k9.helper.SizeFormatter;
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import com.fsck.k9.helper.Utility;
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import com.fsck.k9.mail.Message;
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import com.fsck.k9.mail.MessagingException;
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import com.fsck.k9.mail.Part;
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import com.fsck.k9.mail.internet.MimeHeader;
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import com.fsck.k9.mail.internet.MimeUtility;
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import com.fsck.k9.mail.store.LocalStore.LocalAttachmentBodyPart;
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import com.fsck.k9.provider.AttachmentProvider;
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public class AttachmentView extends FrameLayout implements OnClickListener, OnLongClickListener {
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private Context mContext;
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public Button viewButton;
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public Button downloadButton;
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public LocalAttachmentBodyPart part;
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private Message mMessage;
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private Account mAccount;
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private MessagingController mController;
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private MessagingListener mListener;
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public String name;
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public String contentType;
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public long size;
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public ImageView iconView;
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private AttachmentFileDownloadCallback callback;
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public AttachmentView(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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mContext = context;
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}
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public AttachmentView(Context context, AttributeSet attrs) {
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super(context, attrs);
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mContext = context;
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}
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public AttachmentView(Context context) {
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super(context);
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mContext = context;
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}
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public interface AttachmentFileDownloadCallback {
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/**
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* this method i called by the attachmentview when
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* he wants to show a filebrowser
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* the provider should show the filebrowser activity
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* and save the reference to the attachment view for later.
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* in his onActivityResult he can get the saved reference and
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* call the saveFile method of AttachmentView
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* @param view
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*/
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public void showFileBrowser(AttachmentView caller);
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}
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/**
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* Populates this view with information about the attachment.
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*
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* <p>
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* This method also decides which attachments are displayed when the "show attachments" button
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* is pressed, and which attachments are only displayed after the "show more attachments"
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* button was pressed.<br>
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* Inline attachments with content ID and unnamed attachments fall into the second category.
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* </p>
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*
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* @param inputPart
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* @param message
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* @param account
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* @param controller
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* @param listener
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*
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* @return {@code true} for a regular attachment. {@code false}, otherwise.
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*
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* @throws MessagingException
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* In case of an error
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*/
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public boolean populateFromPart(Part inputPart, Message message, Account account,
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MessagingController controller, MessagingListener listener) throws MessagingException {
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boolean firstClassAttachment = true;
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part = (LocalAttachmentBodyPart) inputPart;
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contentType = MimeUtility.unfoldAndDecode(part.getContentType());
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String contentDisposition = MimeUtility.unfoldAndDecode(part.getDisposition());
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name = MimeUtility.getHeaderParameter(contentType, "name");
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if (name == null) {
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name = MimeUtility.getHeaderParameter(contentDisposition, "filename");
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}
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if (name == null) {
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firstClassAttachment = false;
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String extension = MimeUtility.getExtensionByMimeType(contentType);
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name = "noname" + ((extension != null) ? "." + extension : "");
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}
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// Inline parts with a content-id are almost certainly components of an HTML message
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// not attachments. Only show them if the user pressed the button to show more
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// attachments.
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if (contentDisposition != null &&
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MimeUtility.getHeaderParameter(contentDisposition, null).matches("^(?i:inline)")
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&& part.getHeader(MimeHeader.HEADER_CONTENT_ID) != null) {
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firstClassAttachment = false;
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}
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mAccount = account;
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mMessage = message;
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mController = controller;
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mListener = listener;
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String sizeParam = MimeUtility.getHeaderParameter(contentDisposition, "size");
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if (sizeParam != null) {
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try {
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size = Integer.parseInt(sizeParam);
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} catch (NumberFormatException e) { /* ignore */ }
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}
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contentType = MimeUtility.getMimeTypeForViewing(part.getMimeType(), name);
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TextView attachmentName = (TextView) findViewById(R.id.attachment_name);
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TextView attachmentInfo = (TextView) findViewById(R.id.attachment_info);
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ImageView attachmentIcon = (ImageView) findViewById(R.id.attachment_icon);
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viewButton = (Button) findViewById(R.id.view);
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downloadButton = (Button) findViewById(R.id.download);
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if ((!MimeUtility.mimeTypeMatches(contentType, K9.ACCEPTABLE_ATTACHMENT_VIEW_TYPES))
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|| (MimeUtility.mimeTypeMatches(contentType, K9.UNACCEPTABLE_ATTACHMENT_VIEW_TYPES))) {
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viewButton.setVisibility(View.GONE);
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}
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if ((!MimeUtility.mimeTypeMatches(contentType, K9.ACCEPTABLE_ATTACHMENT_DOWNLOAD_TYPES))
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|| (MimeUtility.mimeTypeMatches(contentType, K9.UNACCEPTABLE_ATTACHMENT_DOWNLOAD_TYPES))) {
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downloadButton.setVisibility(View.GONE);
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}
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if (size > K9.MAX_ATTACHMENT_DOWNLOAD_SIZE) {
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viewButton.setVisibility(View.GONE);
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downloadButton.setVisibility(View.GONE);
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}
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viewButton.setOnClickListener(this);
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downloadButton.setOnClickListener(this);
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downloadButton.setOnLongClickListener(this);
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attachmentName.setText(name);
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attachmentInfo.setText(SizeFormatter.formatSize(mContext, size));
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Bitmap previewIcon = getPreviewIcon();
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if (previewIcon != null) {
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attachmentIcon.setImageBitmap(previewIcon);
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} else {
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attachmentIcon.setImageResource(R.drawable.attached_image_placeholder);
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}
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return firstClassAttachment;
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}
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@Override
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public void onClick(View view) {
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switch (view.getId()) {
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case R.id.view: {
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onViewButtonClicked();
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break;
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}
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case R.id.download: {
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onSaveButtonClicked();
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break;
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}
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}
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}
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@Override
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public boolean onLongClick(View view) {
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if (view.getId() == R.id.download) {
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callback.showFileBrowser(this);
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return true;
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}
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return false;
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}
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private Bitmap getPreviewIcon() {
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try {
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return BitmapFactory.decodeStream(
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mContext.getContentResolver().openInputStream(
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AttachmentProvider.getAttachmentThumbnailUri(mAccount,
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part.getAttachmentId(),
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62,
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62)));
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} catch (Exception e) {
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/*
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* We don't care what happened, we just return null for the preview icon.
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*/
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return null;
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}
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}
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private void onViewButtonClicked() {
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if (mMessage != null) {
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mController.loadAttachment(mAccount, mMessage, part, new Object[] { false, this }, mListener);
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}
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}
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private void onSaveButtonClicked() {
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saveFile();
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}
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/**
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* Writes the attachment onto the given path
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* @param directory: the base dir where the file should be saved.
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*/
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public void writeFile(File directory) {
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try {
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String filename = Utility.sanitizeFilename(name);
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File file = Utility.createUniqueFile(directory, filename);
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Uri uri = AttachmentProvider.getAttachmentUri(mAccount, part.getAttachmentId());
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InputStream in = mContext.getContentResolver().openInputStream(uri);
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OutputStream out = new FileOutputStream(file);
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IOUtils.copy(in, out);
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out.flush();
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out.close();
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in.close();
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attachmentSaved(file.toString());
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new MediaScannerNotifier(mContext, file);
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} catch (IOException ioe) {
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if (K9.DEBUG) {
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Log.e(K9.LOG_TAG, "Error saving attachment", ioe);
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}
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attachmentNotSaved();
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}
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}
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/**
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* saves the file to the defaultpath setting in the config, or if the config
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* is not set => to the Environment
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*/
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public void writeFile() {
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writeFile(new File(K9.getAttachmentDefaultPath()));
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}
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public void saveFile() {
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//TODO: Can the user save attachments on the internal filesystem or sd card only?
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if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
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/*
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* Abort early if there's no place to save the attachment. We don't want to spend
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* the time downloading it and then abort.
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*/
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Toast.makeText(mContext,
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mContext.getString(R.string.message_view_status_attachment_not_saved),
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Toast.LENGTH_SHORT).show();
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return;
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}
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if (mMessage != null) {
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mController.loadAttachment(mAccount, mMessage, part, new Object[] {true, this}, mListener);
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}
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}
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public void showFile() {
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Uri uri = AttachmentProvider.getAttachmentUriForViewing(mAccount, part.getAttachmentId());
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Intent intent = new Intent(Intent.ACTION_VIEW);
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// We explicitly set the ContentType in addition to the URI because some attachment viewers (such as Polaris office 3.0.x) choke on documents without a mime type
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intent.setDataAndType(uri, contentType);
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intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
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try {
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mContext.startActivity(intent);
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} catch (Exception e) {
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Log.e(K9.LOG_TAG, "Could not display attachment of type " + contentType, e);
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Toast toast = Toast.makeText(mContext, mContext.getString(R.string.message_view_no_viewer, contentType), Toast.LENGTH_LONG);
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toast.show();
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}
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}
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/**
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* Check the {@link PackageManager} if the phone has an application
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* installed to view this type of attachment.
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* If not, {@link #viewButton} is disabled.
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* This should be done in any place where
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* attachment.viewButton.setEnabled(enabled); is called.
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* This method is safe to be called from the UI-thread.
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*/
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public void checkViewable() {
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if (viewButton.getVisibility() == View.GONE) {
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// nothing to do
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return;
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}
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if (!viewButton.isEnabled()) {
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// nothing to do
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return;
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}
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try {
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Uri uri = AttachmentProvider.getAttachmentUriForViewing(mAccount, part.getAttachmentId());
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Intent intent = new Intent(Intent.ACTION_VIEW);
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intent.setData(uri);
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intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
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if (intent.resolveActivity(mContext.getPackageManager()) == null) {
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viewButton.setEnabled(false);
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}
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// currently we do not cache re result.
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} catch (Exception e) {
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Log.e(K9.LOG_TAG, "Cannot resolve activity to determine if we shall show the 'view'-button for an attachment", e);
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}
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}
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public void attachmentSaved(final String filename) {
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Toast.makeText(mContext, String.format(
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mContext.getString(R.string.message_view_status_attachment_saved), filename),
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Toast.LENGTH_LONG).show();
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}
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public void attachmentNotSaved() {
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Toast.makeText(mContext,
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mContext.getString(R.string.message_view_status_attachment_not_saved),
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Toast.LENGTH_LONG).show();
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}
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public AttachmentFileDownloadCallback getCallback() {
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return callback;
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}
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public void setCallback(AttachmentFileDownloadCallback callback) {
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this.callback = callback;
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}
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}
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