mirror of
https://github.com/KDE/kdeconnect-android
synced 2025-09-05 08:35:10 +00:00
325 lines
12 KiB
Java
325 lines
12 KiB
Java
package org.kde.kdeconnect.Plugins.SftpPlugin;
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import android.annotation.TargetApi;
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import android.app.Activity;
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import android.app.Dialog;
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import android.content.Intent;
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import android.graphics.drawable.Drawable;
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import android.net.Uri;
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import android.os.Build;
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import android.os.Bundle;
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import android.provider.DocumentsContract;
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import android.text.Editable;
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import android.text.InputFilter;
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import android.text.SpannableString;
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import android.text.Spanned;
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import android.text.TextUtils;
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import android.text.TextWatcher;
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import android.view.View;
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import android.widget.Button;
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import androidx.annotation.NonNull;
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import androidx.appcompat.app.AlertDialog;
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import androidx.appcompat.content.res.AppCompatResources;
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import androidx.core.content.ContextCompat;
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import androidx.core.graphics.drawable.DrawableCompat;
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import androidx.core.widget.TextViewCompat;
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import androidx.preference.PreferenceDialogFragmentCompat;
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import org.json.JSONException;
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import org.json.JSONObject;
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import org.kde.kdeconnect.Helpers.StorageHelper;
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import org.kde.kdeconnect_tp.R;
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import org.kde.kdeconnect_tp.databinding.FragmentStoragePreferenceDialogBinding;
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public class StoragePreferenceDialogFragment extends PreferenceDialogFragmentCompat implements TextWatcher {
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private static final int REQUEST_CODE_DOCUMENT_TREE = 1001;
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//When state is restored I cannot determine if an error is going to be displayed on one of the TextInputEditText's or not so I have to remember if the dialog's positive button was enabled or not
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private static final String KEY_POSITIVE_BUTTON_ENABLED = "PositiveButtonEnabled";
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private static final String KEY_STORAGE_INFO = "StorageInfo";
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private static final String KEY_TAKE_FLAGS = "TakeFlags";
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private FragmentStoragePreferenceDialogBinding binding;
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private Callback callback;
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private Drawable arrowDropDownDrawable;
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private Button positiveButton;
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private boolean stateRestored;
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private boolean enablePositiveButton;
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private SftpPlugin.StorageInfo storageInfo;
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private int takeFlags;
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public static StoragePreferenceDialogFragment newInstance(String key) {
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StoragePreferenceDialogFragment fragment = new StoragePreferenceDialogFragment();
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Bundle args = new Bundle();
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args.putString(ARG_KEY, key);
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fragment.setArguments(args);
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return fragment;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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stateRestored = false;
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enablePositiveButton = true;
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if (savedInstanceState != null) {
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stateRestored = true;
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enablePositiveButton = savedInstanceState.getBoolean(KEY_POSITIVE_BUTTON_ENABLED);
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takeFlags = savedInstanceState.getInt(KEY_TAKE_FLAGS, 0);
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try {
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JSONObject jsonObject = new JSONObject(savedInstanceState.getString(KEY_STORAGE_INFO, "{}"));
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storageInfo = SftpPlugin.StorageInfo.fromJSON(jsonObject);
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} catch (JSONException ignored) {}
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}
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Drawable drawable = AppCompatResources.getDrawable(requireContext(), R.drawable.ic_arrow_drop_down_24px);
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if (drawable != null) {
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drawable = DrawableCompat.wrap(drawable);
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DrawableCompat.setTint(drawable, ContextCompat.getColor(requireContext(),
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android.R.color.darker_gray));
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drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
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arrowDropDownDrawable = drawable;
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}
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}
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void setCallback(Callback callback) {
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this.callback = callback;
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}
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@NonNull
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState) {
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AlertDialog dialog = (AlertDialog) super.onCreateDialog(savedInstanceState);
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dialog.setOnShowListener(dialog1 -> {
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AlertDialog alertDialog = (AlertDialog) dialog1;
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positiveButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
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positiveButton.setEnabled(enablePositiveButton);
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});
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return dialog;
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}
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@Override
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protected void onBindDialogView(View view) {
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super.onBindDialogView(view);
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binding = FragmentStoragePreferenceDialogBinding.bind(view);
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binding.storageLocation.setOnClickListener(v -> {
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Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
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//For API >= 26 we can also set Extra: DocumentsContract.EXTRA_INITIAL_URI
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startActivityForResult(intent, REQUEST_CODE_DOCUMENT_TREE);
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});
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binding.storageDisplayName.setFilters(new InputFilter[]{new FileSeparatorCharFilter()});
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binding.storageDisplayName.addTextChangedListener(this);
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if (getPreference().getKey().equals(getString(R.string.sftp_preference_key_add_storage))) {
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if (!stateRestored) {
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enablePositiveButton = false;
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binding.storageLocation.setText(requireContext().getString(R.string.sftp_storage_preference_click_to_select));
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}
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boolean isClickToSelect = TextUtils.equals(binding.storageLocation.getText(),
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getString(R.string.sftp_storage_preference_click_to_select));
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TextViewCompat.setCompoundDrawablesRelative(binding.storageLocation, null, null,
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isClickToSelect ? arrowDropDownDrawable : null, null);
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binding.storageLocation.setEnabled(isClickToSelect);
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binding.storageLocation.setFocusable(false);
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binding.storageLocation.setFocusableInTouchMode(false);
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binding.storageDisplayName.setEnabled(!isClickToSelect);
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} else {
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if (!stateRestored) {
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StoragePreference preference = (StoragePreference) getPreference();
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SftpPlugin.StorageInfo info = preference.getStorageInfo();
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if (info == null) {
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throw new RuntimeException("Cannot edit a StoragePreference that does not have its storageInfo set");
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}
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storageInfo = SftpPlugin.StorageInfo.copy(info);
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if (Build.VERSION.SDK_INT < 21) {
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binding.storageLocation.setText(storageInfo.uri.getPath());
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} else {
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binding.storageLocation.setText(DocumentsContract.getTreeDocumentId(storageInfo.uri));
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}
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binding.storageDisplayName.setText(storageInfo.displayName);
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}
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TextViewCompat.setCompoundDrawablesRelative(binding.storageLocation, null, null, null, null);
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binding.storageLocation.setEnabled(false);
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binding.storageLocation.setFocusable(false);
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binding.storageLocation.setFocusableInTouchMode(false);
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binding.storageDisplayName.setEnabled(true);
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}
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}
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@Override
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public void onDestroyView() {
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super.onDestroyView();
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binding = null;
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}
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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if (resultCode != Activity.RESULT_OK) {
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return;
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}
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switch (requestCode) {
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case REQUEST_CODE_DOCUMENT_TREE:
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Uri uri = data.getData();
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takeFlags = data.getFlags() & (Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
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if (uri == null) {
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return;
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}
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CallbackResult result = callback.isUriAllowed(uri);
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if (result.isAllowed) {
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String documentId = DocumentsContract.getTreeDocumentId(uri);
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String displayName = StorageHelper.getDisplayName(requireContext(), uri);
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storageInfo = new SftpPlugin.StorageInfo(displayName, uri);
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binding.storageLocation.setText(documentId);
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TextViewCompat.setCompoundDrawablesRelative(binding.storageLocation, null, null, null, null);
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binding.storageLocation.setError(null);
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binding.storageLocation.setEnabled(false);
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// TODO: Show name as used in android's picker app but I don't think it's possible to get that, everything I tried throws PermissionDeniedException
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binding.storageDisplayName.setText(displayName);
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binding.storageDisplayName.setEnabled(true);
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} else {
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binding.storageLocation.setError(result.errorMessage);
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setPositiveButtonEnabled(false);
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}
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break;
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}
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}
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@Override
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public void onSaveInstanceState(@NonNull Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putBoolean(KEY_POSITIVE_BUTTON_ENABLED, positiveButton.isEnabled());
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outState.putInt(KEY_TAKE_FLAGS, takeFlags);
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if (storageInfo != null) {
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try {
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outState.putString(KEY_STORAGE_INFO, storageInfo.toJSON().toString());
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} catch (JSONException ignored) {}
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}
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}
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@Override
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public void onDialogClosed(boolean positiveResult) {
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if (positiveResult) {
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storageInfo.displayName = binding.storageDisplayName.getText().toString();
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if (getPreference().getKey().equals(getString(R.string.sftp_preference_key_add_storage))) {
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callback.addNewStoragePreference(storageInfo, takeFlags);
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} else {
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((StoragePreference)getPreference()).setStorageInfo(storageInfo);
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}
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}
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}
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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//Don't care
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}
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) {
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//Don't care
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}
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@Override
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public void afterTextChanged(Editable s) {
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String displayName = s.toString();
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StoragePreference storagePreference = (StoragePreference) getPreference();
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SftpPlugin.StorageInfo storageInfo = storagePreference.getStorageInfo();
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if (storageInfo == null || !storageInfo.displayName.equals(displayName)) {
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CallbackResult result = callback.isDisplayNameAllowed(displayName);
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if (result.isAllowed) {
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setPositiveButtonEnabled(true);
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} else {
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setPositiveButtonEnabled(false);
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binding.storageDisplayName.setError(result.errorMessage);
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}
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}
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}
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private void setPositiveButtonEnabled(boolean enabled) {
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if (positiveButton != null) {
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positiveButton.setEnabled(enabled);
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} else {
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enablePositiveButton = enabled;
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}
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}
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private static class FileSeparatorCharFilter implements InputFilter {
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//TODO: Add more chars to refuse?
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//https://www.cyberciti.biz/faq/linuxunix-rules-for-naming-file-and-directory-names/
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String notAllowed = "/\\><|:&?*";
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@Override
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public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
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boolean keepOriginal = true;
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StringBuilder sb = new StringBuilder(end - start);
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for (int i = start; i < end; i++) {
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char c = source.charAt(i);
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if (notAllowed.indexOf(c) < 0) {
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sb.append(c);
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} else {
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keepOriginal = false;
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sb.append("_");
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}
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}
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if (keepOriginal) {
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return null;
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} else {
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if (source instanceof Spanned) {
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SpannableString sp = new SpannableString(sb);
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TextUtils.copySpansFrom((Spanned) source, start, sb.length(), null, sp, 0);
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return sp;
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} else {
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return sb;
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}
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}
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}
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}
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static class CallbackResult {
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boolean isAllowed;
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String errorMessage;
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}
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interface Callback {
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@NonNull CallbackResult isDisplayNameAllowed(@NonNull String displayName);
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@NonNull CallbackResult isUriAllowed(@NonNull Uri uri);
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void addNewStoragePreference(@NonNull SftpPlugin.StorageInfo storageInfo, int takeFlags);
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}
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}
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