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ImageEditorFragment.java
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ImageEditorFragment.java
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package org.thoughtcrime.securesms.scribbles;
import android.Manifest;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.RectF;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment;
import org.thoughtcrime.securesms.R;
import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
import org.thoughtcrime.securesms.imageeditor.ColorableRenderer;
import org.thoughtcrime.securesms.imageeditor.ImageEditorView;
import org.thoughtcrime.securesms.imageeditor.Renderer;
import org.thoughtcrime.securesms.imageeditor.model.EditorElement;
import org.thoughtcrime.securesms.imageeditor.model.EditorModel;
import org.thoughtcrime.securesms.imageeditor.renderers.FaceBlurRenderer;
import org.thoughtcrime.securesms.imageeditor.renderers.MultiLineTextRenderer;
import org.thoughtcrime.securesms.keyvalue.SignalStore;
import org.thoughtcrime.securesms.logging.Log;
import org.thoughtcrime.securesms.mediasend.MediaSendPageFragment;
import org.thoughtcrime.securesms.mms.MediaConstraints;
import org.thoughtcrime.securesms.mms.PushMediaConstraints;
import org.thoughtcrime.securesms.permissions.Permissions;
import org.thoughtcrime.securesms.providers.BlobProvider;
import org.thoughtcrime.securesms.scribbles.widget.VerticalSlideColorPicker;
import org.thoughtcrime.securesms.util.MediaUtil;
import org.thoughtcrime.securesms.util.ParcelUtil;
import org.thoughtcrime.securesms.util.SaveAttachmentTask;
import org.thoughtcrime.securesms.util.TextSecurePreferences;
import org.thoughtcrime.securesms.util.concurrent.SignalExecutors;
import org.thoughtcrime.securesms.util.concurrent.SimpleTask;
import org.thoughtcrime.securesms.util.views.SimpleProgressDialog;
import org.whispersystems.libsignal.util.Pair;
import java.io.ByteArrayOutputStream;
import java.util.Collections;
import java.util.List;
import static android.app.Activity.RESULT_OK;
public final class ImageEditorFragment extends Fragment implements ImageEditorHud.EventListener,
VerticalSlideColorPicker.OnColorChangeListener,
MediaSendPageFragment {
private static final String TAG = Log.tag(ImageEditorFragment.class);
private static final String KEY_IMAGE_URI = "image_uri";
private static final String KEY_IS_AVATAR_MODE = "avatar_mode";
private static final int SELECT_STICKER_REQUEST_CODE = 124;
private EditorModel restoredModel;
private Pair<Uri, FaceDetectionResult> cachedFaceDetection;
@Nullable private EditorElement currentSelection;
private int imageMaxHeight;
private int imageMaxWidth;
public static class Data {
private final Bundle bundle;
Data(Bundle bundle) {
this.bundle = bundle;
}
public Data() {
this(new Bundle());
}
void writeModel(@NonNull EditorModel model) {
byte[] bytes = ParcelUtil.serialize(model);
bundle.putByteArray("MODEL", bytes);
}
@Nullable
public EditorModel readModel() {
byte[] bytes = bundle.getByteArray("MODEL");
if (bytes == null) {
return null;
}
return ParcelUtil.deserialize(bytes, EditorModel.CREATOR);
}
}
private Uri imageUri;
private Controller controller;
private ImageEditorHud imageEditorHud;
private ImageEditorView imageEditorView;
public static ImageEditorFragment newInstanceForAvatar(@NonNull Uri imageUri) {
ImageEditorFragment fragment = newInstance(imageUri);
fragment.requireArguments().putBoolean(KEY_IS_AVATAR_MODE, true);
return fragment;
}
public static ImageEditorFragment newInstance(@NonNull Uri imageUri) {
Bundle args = new Bundle();
args.putParcelable(KEY_IMAGE_URI, imageUri);
ImageEditorFragment fragment = new ImageEditorFragment();
fragment.setArguments(args);
fragment.setUri(imageUri);
return fragment;
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (!(getActivity() instanceof Controller)) {
throw new IllegalStateException("Parent activity must implement Controller interface.");
}
controller = (Controller) getActivity();
Bundle arguments = getArguments();
if (arguments != null) {
imageUri = arguments.getParcelable(KEY_IMAGE_URI);
}
if (imageUri == null) {
throw new AssertionError("No KEY_IMAGE_URI supplied");
}
MediaConstraints mediaConstraints = new PushMediaConstraints();
imageMaxWidth = mediaConstraints.getImageMaxWidth(requireContext());
imageMaxHeight = mediaConstraints.getImageMaxHeight(requireContext());
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.image_editor_fragment, container, false);
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
boolean isAvatarMode = requireArguments().getBoolean(KEY_IS_AVATAR_MODE, false);
imageEditorHud = view.findViewById(R.id.scribble_hud);
imageEditorView = view.findViewById(R.id.image_editor_view);
imageEditorHud.setEventListener(this);
imageEditorView.setTapListener(selectionListener);
imageEditorView.setDrawingChangedListener(this::refreshUniqueColors);
imageEditorView.setUndoRedoStackListener(this::onUndoRedoAvailabilityChanged);
EditorModel editorModel = null;
if (restoredModel != null) {
editorModel = restoredModel;
restoredModel = null;
}
if (editorModel == null) {
editorModel = isAvatarMode ? EditorModel.createForCircleEditing() : EditorModel.create();
EditorElement image = new EditorElement(new UriGlideRenderer(imageUri, true, imageMaxWidth, imageMaxHeight));
image.getFlags().setSelectable(false).persist();
editorModel.addElement(image);
}
if (isAvatarMode) {
imageEditorHud.setUpForAvatarEditing();
imageEditorHud.enterMode(ImageEditorHud.Mode.CROP);
}
imageEditorView.setModel(editorModel);
if (!SignalStore.tooltips().hasSeenBlurHudIconTooltip()) {
imageEditorHud.showBlurHudTooltip();
SignalStore.tooltips().markBlurHudIconTooltipSeen();
}
refreshUniqueColors();
}
@Override
public void setUri(@NonNull Uri uri) {
this.imageUri = uri;
}
@NonNull
@Override
public Uri getUri() {
return imageUri;
}
@Nullable
@Override
public View getPlaybackControls() {
return null;
}
@Override
public Object saveState() {
Data data = new Data();
data.writeModel(imageEditorView.getModel());
return data;
}
@Override
public void restoreState(@NonNull Object state) {
if (state instanceof Data) {
Data data = (Data) state;
EditorModel model = data.readModel();
if (model != null) {
if (imageEditorView != null) {
imageEditorView.setModel(model);
refreshUniqueColors();
} else {
this.restoredModel = model;
}
}
} else {
Log.w(TAG, "Received a bad saved state. Received class: " + state.getClass().getName());
}
}
@Override
public void notifyHidden() {
}
private void changeEntityColor(int selectedColor) {
if (currentSelection != null) {
Renderer renderer = currentSelection.getRenderer();
if (renderer instanceof ColorableRenderer) {
((ColorableRenderer) renderer).setColor(selectedColor);
refreshUniqueColors();
}
}
}
private void startTextEntityEditing(@NonNull EditorElement textElement, boolean selectAll) {
imageEditorView.startTextEditing(textElement, TextSecurePreferences.isIncognitoKeyboardEnabled(requireContext()), selectAll);
}
protected void addText() {
String initialText = "";
int color = imageEditorHud.getActiveColor();
MultiLineTextRenderer renderer = new MultiLineTextRenderer(initialText, color);
EditorElement element = new EditorElement(renderer, EditorModel.Z_TEXT);
imageEditorView.getModel().addElementCentered(element, 1);
imageEditorView.invalidate();
currentSelection = element;
startTextEntityEditing(element, true);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK && requestCode == SELECT_STICKER_REQUEST_CODE && data != null) {
final Uri uri = data.getData();
if (uri != null) {
UriGlideRenderer renderer = new UriGlideRenderer(uri, true, imageMaxWidth, imageMaxHeight);
EditorElement element = new EditorElement(renderer, EditorModel.Z_STICKERS);
imageEditorView.getModel().addElementCentered(element, 0.2f);
currentSelection = element;
imageEditorHud.setMode(ImageEditorHud.Mode.MOVE_DELETE);
}
} else {
imageEditorHud.setMode(ImageEditorHud.Mode.NONE);
}
}
@Override
public void onModeStarted(@NonNull ImageEditorHud.Mode mode) {
imageEditorView.setMode(ImageEditorView.Mode.MoveAndResize);
imageEditorView.doneTextEditing();
controller.onTouchEventsNeeded(mode != ImageEditorHud.Mode.NONE);
switch (mode) {
case CROP: {
imageEditorView.getModel().startCrop();
break;
}
case DRAW: {
imageEditorView.startDrawing(0.01f, Paint.Cap.ROUND, false);
break;
}
case HIGHLIGHT: {
imageEditorView.startDrawing(0.03f, Paint.Cap.SQUARE, false);
break;
}
case BLUR: {
imageEditorView.startDrawing(0.055f, Paint.Cap.ROUND, true);
imageEditorHud.setBlurFacesToggleEnabled(imageEditorView.getModel().hasFaceRenderer());
if (!SignalStore.tooltips().hasSeenAutoBlurFacesTooltip()) {
imageEditorHud.showAutoBlurFacesTooltip();
SignalStore.tooltips().markAutoBlurFacesTooltipSeen();
}
break;
}
case TEXT: {
addText();
break;
}
case INSERT_STICKER: {
Intent intent = new Intent(getContext(), ImageEditorStickerSelectActivity.class);
startActivityForResult(intent, SELECT_STICKER_REQUEST_CODE);
break;
}
case MOVE_DELETE:
break;
case NONE: {
imageEditorView.getModel().doneCrop();
currentSelection = null;
break;
}
}
}
@Override
public void onColorChange(int color) {
imageEditorView.setDrawingBrushColor(color);
changeEntityColor(color);
}
@Override
public void onBlurFacesToggled(boolean enabled) {
EditorModel model = imageEditorView.getModel();
EditorElement mainImage = model.getMainImage();
if (mainImage == null) {
return;
}
if (!enabled) {
model.clearFaceRenderers();
return;
}
Matrix inverseCropPosition = model.getInverseCropPosition();
if (cachedFaceDetection != null) {
if (cachedFaceDetection.first().equals(getUri()) && cachedFaceDetection.second().position.equals(inverseCropPosition)) {
renderFaceBlurs(cachedFaceDetection.second());
return;
} else {
cachedFaceDetection = null;
}
}
AlertDialog progress = SimpleProgressDialog.show(requireContext());
mainImage.getFlags().setChildrenVisible(false);
SimpleTask.run(getLifecycle(), () -> {
if (mainImage.getRenderer() != null) {
Bitmap bitmap = ((UriGlideRenderer) mainImage.getRenderer()).getBitmap();
if (bitmap != null) {
FaceDetector detector = new FirebaseFaceDetector();
Point size = model.getOutputSizeMaxWidth(1000);
Bitmap render = model.render(ApplicationDependencies.getApplication(), size);
try {
return new FaceDetectionResult(detector.detect(render), new Point(render.getWidth(), render.getHeight()), inverseCropPosition);
} finally {
render.recycle();
mainImage.getFlags().reset();
}
}
}
return new FaceDetectionResult(Collections.emptyList(), new Point(0, 0), new Matrix());
}, result -> {
mainImage.getFlags().reset();
renderFaceBlurs(result);
progress.dismiss();
});
}
@Override
public void onUndo() {
imageEditorView.getModel().undo();
refreshUniqueColors();
imageEditorHud.setBlurFacesToggleEnabled(imageEditorView.getModel().hasFaceRenderer());
}
@Override
public void onDelete() {
imageEditorView.deleteElement(currentSelection);
refreshUniqueColors();
}
@Override
public void onSave() {
SaveAttachmentTask.showWarningDialog(requireContext(), (dialogInterface, i) -> {
Permissions.with(this)
.request(Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE)
.ifNecessary()
.withPermanentDenialDialog(getString(R.string.MediaPreviewActivity_signal_needs_the_storage_permission_in_order_to_write_to_external_storage_but_it_has_been_permanently_denied))
.onAnyDenied(() -> Toast.makeText(requireContext(), R.string.MediaPreviewActivity_unable_to_write_to_external_storage_without_permission, Toast.LENGTH_LONG).show())
.onAllGranted(() -> {
SimpleTask.run(() -> {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
Bitmap image = imageEditorView.getModel().render(requireContext());
image.compress(Bitmap.CompressFormat.JPEG, 80, outputStream);
return BlobProvider.getInstance()
.forData(outputStream.toByteArray())
.withMimeType(MediaUtil.IMAGE_JPEG)
.createForSingleUseInMemory();
}, uri -> {
SaveAttachmentTask saveTask = new SaveAttachmentTask(requireContext());
SaveAttachmentTask.Attachment attachment = new SaveAttachmentTask.Attachment(uri, MediaUtil.IMAGE_JPEG, System.currentTimeMillis(), null);
saveTask.executeOnExecutor(SignalExecutors.BOUNDED, attachment);
});
})
.execute();
});
}
@Override
public void onFlipHorizontal() {
imageEditorView.getModel().flipHorizontal();
}
@Override
public void onRotate90AntiClockwise() {
imageEditorView.getModel().rotate90anticlockwise();
}
@Override
public void onCropAspectLock(boolean locked) {
imageEditorView.getModel().setCropAspectLock(locked);
}
@Override
public boolean isCropAspectLocked() {
return imageEditorView.getModel().isCropAspectLocked();
}
@Override
public void onRequestFullScreen(boolean fullScreen, boolean hideKeyboard) {
controller.onRequestFullScreen(fullScreen, hideKeyboard);
}
@Override
public void onDone() {
controller.onDoneEditing();
}
private void refreshUniqueColors() {
imageEditorHud.setColorPalette(imageEditorView.getModel().getUniqueColorsIgnoringAlpha());
}
private void onUndoRedoAvailabilityChanged(boolean undoAvailable, boolean redoAvailable) {
imageEditorHud.setUndoAvailability(undoAvailable);
}
private void renderFaceBlurs(@NonNull FaceDetectionResult result) {
List<RectF> faces = result.rects;
Point size = result.imageSize;
if (faces.isEmpty()) {
Toast.makeText(requireContext(), R.string.ImageEditorFragment_no_faces_detected, Toast.LENGTH_SHORT).show();
imageEditorHud.setBlurFacesToggleEnabled(false);
cachedFaceDetection = null;
return;
}
imageEditorView.getModel().pushUndoPoint();
for (RectF face : faces) {
FaceBlurRenderer faceBlurRenderer = new FaceBlurRenderer(face, size);
EditorElement element = new EditorElement(faceBlurRenderer, EditorModel.Z_MASK);
element.getLocalMatrix().set(result.position);
imageEditorView.getModel().addElementWithoutPushUndo(element);
}
imageEditorView.invalidate();
cachedFaceDetection = new Pair<>(getUri(), result);
}
private final ImageEditorView.TapListener selectionListener = new ImageEditorView.TapListener() {
@Override
public void onEntityDown(@Nullable EditorElement editorElement) {
if (editorElement != null) {
controller.onTouchEventsNeeded(true);
} else {
currentSelection = null;
controller.onTouchEventsNeeded(false);
imageEditorHud.setMode(ImageEditorHud.Mode.NONE);
}
}
@Override
public void onEntitySingleTap(@Nullable EditorElement editorElement) {
currentSelection = editorElement;
if (currentSelection != null) {
if (editorElement.getRenderer() instanceof MultiLineTextRenderer) {
setTextElement(editorElement, (ColorableRenderer) editorElement.getRenderer(), imageEditorView.isTextEditing());
} else {
imageEditorHud.setMode(ImageEditorHud.Mode.MOVE_DELETE);
}
}
}
@Override
public void onEntityDoubleTap(@NonNull EditorElement editorElement) {
currentSelection = editorElement;
if (editorElement.getRenderer() instanceof MultiLineTextRenderer) {
setTextElement(editorElement, (ColorableRenderer) editorElement.getRenderer(), true);
}
}
private void setTextElement(@NonNull EditorElement editorElement,
@NonNull ColorableRenderer colorableRenderer,
boolean startEditing)
{
int color = colorableRenderer.getColor();
imageEditorHud.enterMode(ImageEditorHud.Mode.TEXT);
imageEditorHud.setActiveColor(color);
if (startEditing) {
startTextEntityEditing(editorElement, false);
}
}
};
public interface Controller {
void onTouchEventsNeeded(boolean needed);
void onRequestFullScreen(boolean fullScreen, boolean hideKeyboard);
void onDoneEditing();
}
private static class FaceDetectionResult {
private final List<RectF> rects;
private final Point imageSize;
private final Matrix position;
private FaceDetectionResult(@NonNull List<RectF> rects, @NonNull Point imageSize, @NonNull Matrix position) {
this.rects = rects;
this.imageSize = imageSize;
this.position = new Matrix(position);
}
}
}