package org.commcare.views.widgets;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.support.v4.content.FileProvider;
import android.util.Log;
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.TextView;
import android.widget.Toast;
import org.commcare.CommCareApplication;
import org.commcare.activities.components.FormEntryConstants;
import org.commcare.activities.components.FormEntryInstanceState;
import org.commcare.dalvik.R;
import org.commcare.logic.PendingCalloutInterface;
import org.commcare.models.ODKStorage;
import org.commcare.utils.FileUtil;
import org.commcare.utils.GlobalConstants;
import org.commcare.utils.MediaUtil;
import org.commcare.utils.StringUtils;
import org.commcare.utils.UrlUtils;
import org.javarosa.core.model.QuestionDataExtension;
import org.javarosa.core.model.UploadQuestionExtension;
import org.javarosa.core.model.data.IAnswerData;
import org.javarosa.core.model.data.StringData;
import org.javarosa.form.api.FormEntryPrompt;
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 {
private final static String t = "MediaWidget";
private final Button mCaptureButton;
private final Button mChooseButton;
private ImageView mImageView;
private String mBinaryName;
private final String mInstanceFolder;
private final TextView mErrorTextView;
private int mMaxDimen;
private final PendingCalloutInterface pendingCalloutInterface;
public static File getTempFileForImageCapture() {
return new File(CommCareApplication.instance().
getExternalTempPath(GlobalConstants.TEMP_FILE_STEM_IMAGE_HOLDER));
}
public ImageWidget(final Context context, FormEntryPrompt prompt, PendingCalloutInterface pic) {
super(context, prompt);
this.pendingCalloutInterface = pic;
mMaxDimen = -1;
mInstanceFolder =
FormEntryInstanceState.mInstancePath.substring(0,
FormEntryInstanceState.mInstancePath.lastIndexOf("/") + 1);
setOrientation(LinearLayout.VERTICAL);
mErrorTextView = new TextView(context);
mErrorTextView.setText("Selected file is not a valid image");
// setup capture button
mCaptureButton = new Button(getContext());
WidgetUtils.setupButton(mCaptureButton,
StringUtils.getStringSpannableRobust(getContext(), R.string.capture_image),
mAnswerFontSize,
!mPrompt.isReadOnly());
// launch capture intent on click
mCaptureButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mErrorTextView.setVisibility(View.GONE);
Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
Uri uri = FileUtil.getUriForExternalFile(context, getTempFileForImageCapture());
// 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.
i.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, uri);
i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
i.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
try {
((Activity)getContext()).startActivityForResult(i,
FormEntryConstants.IMAGE_CAPTURE);
pendingCalloutInterface.setPendingCalloutFormIndex(mPrompt.getIndex());
} catch (ActivityNotFoundException e) {
Toast.makeText(getContext(),
StringUtils.getStringSpannableRobust(getContext(),
R.string.activity_not_found, "image capture"),
Toast.LENGTH_SHORT).show();
}
}
});
// setup chooser button
mChooseButton = new Button(getContext());
WidgetUtils.setupButton(mChooseButton,
StringUtils.getStringSpannableRobust(getContext(), R.string.choose_image),
mAnswerFontSize,
!mPrompt.isReadOnly());
// launch capture intent on click
mChooseButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mErrorTextView.setVisibility(View.GONE);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.setType("image/*");
try {
((Activity)getContext()).startActivityForResult(i,
FormEntryConstants.IMAGE_CHOOSER);
pendingCalloutInterface.setPendingCalloutFormIndex(mPrompt.getIndex());
} catch (ActivityNotFoundException e) {
Toast.makeText(getContext(),
StringUtils.getStringSpannableRobust(getContext(),
R.string.activity_not_found, "choose image"),
Toast.LENGTH_SHORT).show();
}
}
});
// finish complex layout
//
addView(mCaptureButton);
addView(mChooseButton);
String acq = mPrompt.getAppearanceHint();
if (QuestionWidget.ACQUIREFIELD.equalsIgnoreCase(acq)) {
mChooseButton.setVisibility(View.GONE);
}
addView(mErrorTextView);
mErrorTextView.setVisibility(View.GONE);
// retrieve answer from data model and update ui
mBinaryName = mPrompt.getAnswerText();
// Only add the imageView if the user has taken a picture
if (mBinaryName != null) {
mImageView = new ImageView(getContext());
Display display =
((WindowManager)getContext().getSystemService(Context.WINDOW_SERVICE))
.getDefaultDisplay();
int screenWidth = display.getWidth();
int screenHeight = display.getHeight();
File imageBeingSubmitted = new File(mInstanceFolder + "/" + mBinaryName);
// If there is an image in the raw folder, use that as the display image, since it is
// better quality
File toDisplay = new File(mInstanceFolder + "/raw/" + mBinaryName);
if (!toDisplay.exists()) {
toDisplay = imageBeingSubmitted;
}
checkFileSize(imageBeingSubmitted);
if (toDisplay.exists()) {
Bitmap bmp = MediaUtil.getBitmapScaledToContainer(toDisplay,
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) {
Intent i = new Intent("android.intent.action.VIEW");
String[] projection = {
"_id"
};
Cursor c = null;
try {
c = getContext().getContentResolver().query(
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
projection, "_data='" + mInstanceFolder + mBinaryName + "'",
null, null);
if (c != null && c.getCount() > 0) {
c.moveToFirst();
String id = c.getString(c.getColumnIndex("_id"));
Log.i(t, "setting view path to: " +
Uri.withAppendedPath(android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI, id));
i.setDataAndType(Uri.withAppendedPath(
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI, id),
"image/*");
try {
getContext().startActivity(i);
} catch (ActivityNotFoundException e) {
Toast.makeText(getContext(),
StringUtils.getStringSpannableRobust(getContext(),
R.string.activity_not_found, "view image"),
Toast.LENGTH_SHORT).show();
}
}
} finally {
if (c != null) {
c.close();
}
}
}
});
addView(mImageView);
}
}
private void deleteMedia() {
// get the file path and delete the file
File f = new File(mInstanceFolder + "/" + mBinaryName);
if (!f.delete()) {
Log.e(t, "Failed to delete " + f);
}
// clean up variables
mBinaryName = null;
//TODO: possibly switch back to this implementation, but causes NullPointerException right now
/*
int del = MediaUtils.deleteImageFileFromMediaProvider(mInstanceFolder + File.separator + mBinaryName);
Log.i(t, "Deleted " + del + " rows from media content provider");
mBinaryName = null;*/
}
@Override
public void clearAnswer() {
// remove the file
deleteMedia();
mImageView.setImageBitmap(null);
mErrorTextView.setVisibility(View.GONE);
// reset buttons
mCaptureButton.setText(StringUtils.getStringSpannableRobust(getContext(), R.string.capture_image));
}
@Override
public IAnswerData getAnswer() {
if (mBinaryName != null) {
return new StringData(mBinaryName);
} else {
return null;
}
}
@Override
public void setBinaryData(Object binaryuri) {
// you are replacing an answer. delete the previous image using the
// content provider.
if (mBinaryName != null) {
deleteMedia();
}
String binaryPath = UrlUtils.getPathFromUri((Uri)binaryuri, getContext());
File f = new File(binaryPath);
mBinaryName = f.getName();
Log.i(t, "Setting current answer to " + f.getName());
}
@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 void setOnLongClickListener(OnLongClickListener l) {
mCaptureButton.setOnLongClickListener(l);
mChooseButton.setOnLongClickListener(l);
if (mImageView != null) {
mImageView.setOnLongClickListener(l);
}
}
@Override
public void unsetListeners() {
super.unsetListeners();
mCaptureButton.setOnLongClickListener(null);
mChooseButton.setOnLongClickListener(null);
if (mImageView != null) {
mImageView.setOnLongClickListener(null);
}
}
@Override
public void cancelLongPress() {
super.cancelLongPress();
mCaptureButton.cancelLongPress();
mChooseButton.cancelLongPress();
if (mImageView != null) {
mImageView.cancelLongPress();
}
}
@Override
public void applyExtension(QuestionDataExtension extension) {
if (extension instanceof UploadQuestionExtension) {
this.mMaxDimen = ((UploadQuestionExtension)extension).getMaxDimen();
}
}
public int getMaxDimen() {
return this.mMaxDimen;
}
}