mirror of https://github.com/M66B/FairEmail.git
419 lines
15 KiB
Java
419 lines
15 KiB
Java
package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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FairEmail is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2022 by Marcel Bokhorst (M66B)
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*/
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import android.content.ClipboardManager;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.graphics.Typeface;
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import android.graphics.drawable.Drawable;
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import android.net.Uri;
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import android.os.Bundle;
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import android.text.Editable;
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import android.text.Html;
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import android.text.SpannableStringBuilder;
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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.text.style.ImageSpan;
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import android.view.KeyEvent;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.EditText;
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import android.widget.ImageButton;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.appcompat.app.AlertDialog;
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import androidx.preference.PreferenceManager;
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import com.google.android.material.bottomnavigation.BottomNavigationView;
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import org.jsoup.nodes.Document;
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import org.jsoup.nodes.Element;
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import java.util.Objects;
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public class ActivitySignature extends ActivityBase {
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private ViewGroup view;
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private TextView tvHtmlRemark;
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private EditTextCompose etText;
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private ImageButton ibFull;
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private BottomNavigationView style_bar;
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private BottomNavigationView bottom_navigation;
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private boolean loaded = false;
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private boolean dirty = false;
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private static final int REQUEST_IMAGE = 1;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
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boolean monospaced = prefs.getBoolean("monospaced", false);
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getSupportActionBar().setDisplayHomeAsUpEnabled(true);
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getSupportActionBar().setSubtitle(getString(R.string.title_edit_signature));
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LayoutInflater inflater = LayoutInflater.from(this);
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view = (ViewGroup) inflater.inflate(R.layout.activity_signature, null, false);
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setContentView(view);
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tvHtmlRemark = findViewById(R.id.tvHtmlRemark);
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etText = findViewById(R.id.etText);
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ibFull = findViewById(R.id.ibFull);
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style_bar = findViewById(R.id.style_bar);
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bottom_navigation = findViewById(R.id.bottom_navigation);
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etText.setTypeface(monospaced ? Typeface.MONOSPACE : Typeface.DEFAULT);
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etText.setSelectionListener(new EditTextCompose.ISelection() {
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@Override
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public void onSelected(boolean selection) {
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style_bar.setVisibility(selection && !etText.isRaw() ? View.VISIBLE : View.GONE);
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}
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});
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etText.addTextChangedListener(new TextWatcher() {
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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// Do nothing
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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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if (loaded)
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dirty = true;
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}
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@Override
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public void afterTextChanged(Editable s) {
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// Do nothing
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}
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});
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ibFull.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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Bundle args = new Bundle();
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args.putString("html", getHtml());
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args.putBoolean("overview_mode", false);
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args.putBoolean("safe_browsing", false);
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args.putBoolean("force_light", true);
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FragmentDialogOpenFull dialog = new FragmentDialogOpenFull();
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dialog.setArguments(args);
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dialog.show(getSupportFragmentManager(), "signature");
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}
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});
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style_bar.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
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@Override
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public boolean onNavigationItemSelected(@NonNull MenuItem item) {
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return onActionStyle(item.getItemId());
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}
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});
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bottom_navigation.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
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@Override
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public boolean onNavigationItemSelected(@NonNull MenuItem item) {
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int itemId = item.getItemId();
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if (itemId == R.id.action_insert_image) {
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insertImage();
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return true;
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} else if (itemId == R.id.action_delete) {
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delete();
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return true;
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} else if (itemId == R.id.action_save) {
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save();
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return true;
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}
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return false;
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}
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});
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addKeyPressedListener(new IKeyPressedListener() {
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@Override
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public boolean onKeyPressed(KeyEvent event) {
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return false;
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}
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@Override
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public boolean onBackPressed() {
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String prev = getIntent().getStringExtra("html");
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String current = getHtml();
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boolean dirty = !Objects.equals(prev, current) &&
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!(TextUtils.isEmpty(prev) && TextUtils.isEmpty(current));
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if (dirty)
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new AlertDialog.Builder(ActivitySignature.this)
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.setIcon(R.drawable.twotone_save_alt_24)
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.setTitle(R.string.title_ask_save)
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.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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save();
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finish();
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}
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})
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.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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finish();
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}
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})
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.show();
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else
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finish();
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return true;
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}
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}, this);
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// Initialize
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FragmentDialogTheme.setBackground(this, view, true);
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tvHtmlRemark.setVisibility(View.GONE);
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style_bar.setVisibility(View.GONE);
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setResult(RESULT_CANCELED, new Intent());
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if (savedInstanceState == null) {
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load(getIntent().getStringExtra("html"));
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dirty = false;
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} else
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dirty = savedInstanceState.getBoolean("fair:dirty");
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}
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@Override
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protected void onNewIntent(Intent intent) {
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super.onNewIntent(intent);
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setIntent(intent);
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load(getIntent().getStringExtra("html"));
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dirty = false;
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}
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@Override
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protected void onSaveInstanceState(Bundle outState) {
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outState.putBoolean("fair:dirty", dirty);
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super.onSaveInstanceState(outState);
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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MenuInflater inflater = getMenuInflater();
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inflater.inflate(R.menu.menu_signature, menu);
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return true;
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}
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@Override
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public boolean onOptionsItemSelected(@NonNull MenuItem item) {
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int itemId = item.getItemId();
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if (itemId == R.id.menu_help) {
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onMenuHelp();
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return true;
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} else if (itemId == R.id.menu_edit_html) {
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item.setChecked(!item.isChecked());
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html(item.isChecked());
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return true;
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}
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return super.onOptionsItemSelected(item);
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}
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private void onMenuHelp() {
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Helper.viewFAQ(this, 57);
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}
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@Override
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protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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try {
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switch (requestCode) {
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case REQUEST_IMAGE:
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if (resultCode == RESULT_OK && data != null)
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onImageSelected(data.getData());
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break;
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}
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} catch (Throwable ex) {
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Log.e(ex);
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}
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}
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private void load(String html) {
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loaded = false;
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if (html == null)
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etText.setText(null);
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else if (etText.isRaw())
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etText.setText(html);
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else
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etText.setText(HtmlHelper.fromHtml(html, new HtmlHelper.ImageGetterEx() {
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@Override
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public Drawable getDrawable(Element element) {
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String source = element.attr("src");
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if (source.startsWith("cid:"))
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element.attr("src", "cid:");
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return ImageHelper.decodeImage(ActivitySignature.this,
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-1, element, true, 0, 1.0f, etText);
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}
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}, null, this));
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loaded = true;
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}
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private void delete() {
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Intent result = new Intent();
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result.putExtra("html", (String) null);
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setResult(RESULT_OK, result);
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finish();
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}
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private void save() {
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Intent result = new Intent();
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result.putExtra("html", getHtml());
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setResult(RESULT_OK, result);
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finish();
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}
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private void html(boolean raw) {
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String html = (dirty
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? getHtml()
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: getIntent().getStringExtra("html"));
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tvHtmlRemark.setVisibility(raw ? View.VISIBLE : View.GONE);
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etText.setRaw(raw);
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etText.setTypeface(raw ? Typeface.MONOSPACE : Typeface.DEFAULT);
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load(html);
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if (raw)
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style_bar.setVisibility(View.GONE);
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}
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private String getHtml() {
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etText.clearComposingText();
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if (etText.isRaw())
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return etText.getText().toString();
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else {
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String html = HtmlHelper.toHtml(etText.getText(), this);
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Document d = JsoupEx.parse(html);
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return d.body().html();
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}
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}
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private void insertImage() {
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Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
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intent.addCategory(Intent.CATEGORY_OPENABLE);
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intent.addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION);
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intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
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intent.setType("image/*");
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Helper.openAdvanced(intent);
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startActivityForResult(intent, REQUEST_IMAGE);
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}
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private boolean onActionStyle(int action) {
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Log.i("Style action=" + action);
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if (action == R.id.menu_link) {
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Uri uri = null;
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final int start = etText.getSelectionStart();
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final int end = etText.getSelectionEnd();
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ClipboardManager cbm = Helper.getSystemService(this, ClipboardManager.class);
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if (cbm != null && cbm.hasPrimaryClip()) {
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String link = cbm.getPrimaryClip().getItemAt(0).coerceToText(this).toString();
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uri = Uri.parse(link);
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if (uri.getScheme() == null)
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uri = null;
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}
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View view = LayoutInflater.from(this).inflate(R.layout.dialog_insert_link, null);
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EditText etLink = view.findViewById(R.id.etLink);
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TextView tvInsecure = view.findViewById(R.id.tvInsecure);
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etLink.setText(uri == null ? "https://" : uri.toString());
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tvInsecure.setVisibility(View.GONE);
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new AlertDialog.Builder(this)
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.setView(view)
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.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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String link = etLink.getText().toString();
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etText.setSelection(start, end);
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StyleHelper.apply(R.id.menu_link, ActivitySignature.this, null, etText, link);
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}
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})
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.setNegativeButton(android.R.string.cancel, null)
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.show();
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return true;
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} else
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return StyleHelper.apply(action, ActivitySignature.this, findViewById(action), etText);
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}
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private void onImageSelected(Uri uri) {
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try {
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NoStreamException.check(uri, this);
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getContentResolver().takePersistableUriPermission(uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
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int start = etText.getSelectionStart();
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if (etText.isRaw())
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etText.getText().insert(start, "<img src=\"" + Html.escapeHtml(uri.toString()) + "\" />");
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else {
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SpannableStringBuilder ssb = new SpannableStringBuilderEx(etText.getText());
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ssb.insert(start, " \uFFFC"); // Object replacement character
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String source = uri.toString();
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Drawable d = ImageHelper.decodeImage(this, -1, source, true, 0, 1.0f, etText);
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ImageSpan is = new ImageSpan(d, source);
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ssb.setSpan(is, start + 1, start + 2, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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etText.setText(ssb);
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etText.setSelection(start + 2);
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SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
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boolean signature_images_hint = prefs.getBoolean("signature_images_hint", false);
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if (!signature_images_hint)
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new AlertDialog.Builder(this)
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.setTitle(R.string.title_hint_important)
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.setMessage(R.string.title_edit_signature_image_hint)
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.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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prefs.edit().putBoolean("signature_images_hint", true).apply();
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}
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})
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.show();
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}
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} catch (NoStreamException ex) {
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ex.report(this);
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} catch (Throwable ex) {
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Log.unexpectedError(getSupportFragmentManager(), ex);
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}
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}
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}
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