/*
* Copyright (C) 2009 University of Washington
*
* 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 org.odk.collect.android.widgets;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.provider.MediaStore.Images;
import android.util.Log;
import android.util.TypedValue;
import android.view.Display;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;
import org.javarosa.core.model.data.IAnswerData;
import org.javarosa.core.model.data.StringData;
import org.javarosa.form.api.FormEntryPrompt;
import org.odk.collect.android.R;
import org.odk.collect.android.activities.FormEntryActivity;
import org.odk.collect.android.application.Collect;
import org.odk.collect.android.utilities.FileUtils;
import org.odk.collect.android.utilities.MediaUtils;
import java.io.File;
/**
* Widget that allows user to take pictures, sounds or video and add them to the form.
*
* @author Carl Hartung (carlhartung@gmail.com)
* @author Yaw Anokwa (yanokwa@gmail.com)
*/
public class ImageWidget extends QuestionWidget implements IBinaryWidget {
private final static String t = "MediaWidget";
private Button mCaptureButton;
private Button mChooseButton;
private ImageView mImageView;
private String mBinaryName;
private String mInstanceFolder;
private TextView mErrorTextView;
public ImageWidget(Context context, FormEntryPrompt prompt) {
super(context, prompt);
mInstanceFolder =
Collect.getInstance().getFormController().getInstancePath().getParent();
setOrientation(LinearLayout.VERTICAL);
TableLayout.LayoutParams params = new TableLayout.LayoutParams();
params.setMargins(7, 5, 7, 5);
mErrorTextView = new TextView(context);
mErrorTextView.setId(QuestionWidget.newUniqueId());
mErrorTextView.setText("Selected file is not a valid image");
// setup capture button
mCaptureButton = new Button(getContext());
mCaptureButton.setId(QuestionWidget.newUniqueId());
mCaptureButton.setText(getContext().getString(R.string.capture_image));
mCaptureButton.setTextSize(TypedValue.COMPLEX_UNIT_DIP, mAnswerFontsize);
mCaptureButton.setPadding(20, 20, 20, 20);
mCaptureButton.setEnabled(!prompt.isReadOnly());
mCaptureButton.setLayoutParams(params);
// launch capture intent on click
mCaptureButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Collect.getInstance().getActivityLogger().logInstanceAction(this, "captureButton",
"click", mPrompt.getIndex());
mErrorTextView.setVisibility(View.GONE);
Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
// We give the camera an absolute filename/path where to put the
// picture because of bug:
// http://code.google.com/p/android/issues/detail?id=1480
// The bug appears to be fixed in Android 2.0+, but as of feb 2,
// 2010, G1 phones only run 1.6. Without specifying the path the
// images returned by the camera in 1.6 (and earlier) are ~1/4
// the size. boo.
// if this gets modified, the onActivityResult in
// FormEntyActivity will also need to be updated.
i.putExtra(android.provider.MediaStore.EXTRA_OUTPUT,
Uri.fromFile(new File(Collect.getInstance().getTmpFilePath())));
try {
Collect.getInstance().getFormController().setIndexWaitingForData(mPrompt.getIndex());
((Activity) getContext()).startActivityForResult(i,
FormEntryActivity.IMAGE_CAPTURE);
} catch (ActivityNotFoundException e) {
Toast.makeText(getContext(),
getContext().getString(R.string.activity_not_found, "image capture"),
Toast.LENGTH_SHORT).show();
Collect.getInstance().getFormController().setIndexWaitingForData(null);
}
}
});
// setup chooser button
mChooseButton = new Button(getContext());
mChooseButton.setId(QuestionWidget.newUniqueId());
mChooseButton.setText(getContext().getString(R.string.choose_image));
mChooseButton.setTextSize(TypedValue.COMPLEX_UNIT_DIP, mAnswerFontsize);
mChooseButton.setPadding(20, 20, 20, 20);
mChooseButton.setEnabled(!prompt.isReadOnly());
mChooseButton.setLayoutParams(params);
// launch capture intent on click
mChooseButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Collect.getInstance().getActivityLogger().logInstanceAction(this, "chooseButton",
"click", mPrompt.getIndex());
mErrorTextView.setVisibility(View.GONE);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.setType("image/*");
try {
Collect.getInstance().getFormController()
.setIndexWaitingForData(mPrompt.getIndex());
((Activity) getContext()).startActivityForResult(i,
FormEntryActivity.IMAGE_CHOOSER);
} catch (ActivityNotFoundException e) {
Toast.makeText(getContext(),
getContext().getString(R.string.activity_not_found, "choose image"),
Toast.LENGTH_SHORT).show();
Collect.getInstance().getFormController().setIndexWaitingForData(null);
}
}
});
// finish complex layout
addView(mCaptureButton);
addView(mChooseButton);
addView(mErrorTextView);
// and hide the capture and choose button if read-only
if ( prompt.isReadOnly() ) {
mCaptureButton.setVisibility(View.GONE);
mChooseButton.setVisibility(View.GONE);
}
mErrorTextView.setVisibility(View.GONE);
// retrieve answer from data model and update ui
mBinaryName = prompt.getAnswerText();
// Only add the imageView if the user has taken a picture
if (mBinaryName != null) {
mImageView = new ImageView(getContext());
mImageView.setId(QuestionWidget.newUniqueId());
Display display =
((WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE))
.getDefaultDisplay();
int screenWidth = display.getWidth();
int screenHeight = display.getHeight();
File f = new File(mInstanceFolder + File.separator + mBinaryName);
if (f.exists()) {
Bitmap bmp = FileUtils.getBitmapScaledToDisplay(f, screenHeight, screenWidth);
if (bmp == null) {
mErrorTextView.setVisibility(View.VISIBLE);
}
mImageView.setImageBitmap(bmp);
} else {
mImageView.setImageBitmap(null);
}
mImageView.setPadding(10, 10, 10, 10);
mImageView.setAdjustViewBounds(true);
mImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Collect.getInstance().getActivityLogger().logInstanceAction(this, "viewButton",
"click", mPrompt.getIndex());
Intent i = new Intent("android.intent.action.VIEW");
Uri uri = MediaUtils.getImageUriFromMediaProvider(mInstanceFolder + File.separator + mBinaryName);
if ( uri != null ) {
Log.i(t,"setting view path to: " + uri);
i.setDataAndType(uri, "image/*");
try {
getContext().startActivity(i);
} catch (ActivityNotFoundException e) {
Toast.makeText(getContext(),
getContext().getString(R.string.activity_not_found, "view image"),
Toast.LENGTH_SHORT).show();
}
}
}
});
addView(mImageView);
}
}
private void deleteMedia() {
// get the file path and delete the file
String name = mBinaryName;
// clean up variables
mBinaryName = null;
// delete from media provider
int del = MediaUtils.deleteImageFileFromMediaProvider(mInstanceFolder + File.separator + name);
Log.i(t, "Deleted " + del + " rows from media content provider");
}
@Override
public void clearAnswer() {
// remove the file
deleteMedia();
mImageView.setImageBitmap(null);
mErrorTextView.setVisibility(View.GONE);
// reset buttons
mCaptureButton.setText(getContext().getString(R.string.capture_image));
}
@Override
public IAnswerData getAnswer() {
if (mBinaryName != null) {
return new StringData(mBinaryName.toString());
} else {
return null;
}
}
@Override
public void setBinaryData(Object newImageObj) {
// you are replacing an answer. delete the previous image using the
// content provider.
if (mBinaryName != null) {
deleteMedia();
}
File newImage = (File) newImageObj;
if (newImage.exists()) {
// Add the new image to the Media content provider so that the
// viewing is fast in Android 2.0+
ContentValues values = new ContentValues(6);
values.put(Images.Media.TITLE, newImage.getName());
values.put(Images.Media.DISPLAY_NAME, newImage.getName());
values.put(Images.Media.DATE_TAKEN, System.currentTimeMillis());
values.put(Images.Media.MIME_TYPE, "image/jpeg");
values.put(Images.Media.DATA, newImage.getAbsolutePath());
Uri imageURI = getContext().getContentResolver().insert(
Images.Media.EXTERNAL_CONTENT_URI, values);
Log.i(t, "Inserting image returned uri = " + imageURI.toString());
mBinaryName = newImage.getName();
Log.i(t, "Setting current answer to " + newImage.getName());
} else {
Log.e(t, "NO IMAGE EXISTS at: " + newImage.getAbsolutePath());
}
Collect.getInstance().getFormController().setIndexWaitingForData(null);
}
@Override
public void setFocus(Context context) {
// Hide the soft keyboard if it's showing.
InputMethodManager inputManager =
(InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(this.getWindowToken(), 0);
}
@Override
public boolean isWaitingForBinaryData() {
return mPrompt.getIndex().equals(Collect.getInstance().getFormController().getIndexWaitingForData());
}
@Override
public void cancelWaitingForBinaryData() {
Collect.getInstance().getFormController().setIndexWaitingForData(null);
}
@Override
public void setOnLongClickListener(OnLongClickListener l) {
mCaptureButton.setOnLongClickListener(l);
mChooseButton.setOnLongClickListener(l);
if (mImageView != null) {
mImageView.setOnLongClickListener(l);
}
}
@Override
public void cancelLongPress() {
super.cancelLongPress();
mCaptureButton.cancelLongPress();
mChooseButton.cancelLongPress();
if (mImageView != null) {
mImageView.cancelLongPress();
}
}
}