package com.termux.app;
import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.support.annotation.IntDef;
import android.util.Log;
import android.util.TypedValue;
import android.widget.Toast;
import com.termux.terminal.TerminalSession;
import java.io.File;
import java.io.FileInputStream;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
final class TermuxPreferences {
@IntDef({BELL_VIBRATE, BELL_BEEP, BELL_IGNORE})
@Retention(RetentionPolicy.SOURCE)
public @interface AsciiBellBehaviour {
}
static final int BELL_VIBRATE = 1;
static final int BELL_BEEP = 2;
static final int BELL_IGNORE = 3;
private final int MIN_FONTSIZE;
private static final int MAX_FONTSIZE = 256;
private static final String FULLSCREEN_KEY = "fullscreen";
private static final String SHOW_EXTRA_KEYS_KEY = "show_extra_keys";
private static final String FONTSIZE_KEY = "fontsize";
private static final String CURRENT_SESSION_KEY = "current_session";
private boolean mFullScreen;
private int mFontSize;
@AsciiBellBehaviour
int mBellBehaviour = BELL_VIBRATE;
boolean mBackIsEscape;
boolean mShowExtraKeys;
TermuxPreferences(Context context) {
reloadFromProperties(context);
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
float dipInPixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, context.getResources().getDisplayMetrics());
// This is a bit arbitrary and sub-optimal. We want to give a sensible default for minimum font size
// to prevent invisible text due to zoom be mistake:
MIN_FONTSIZE = (int) (4f * dipInPixels);
mFullScreen = prefs.getBoolean(FULLSCREEN_KEY, false);
mShowExtraKeys = prefs.getBoolean(SHOW_EXTRA_KEYS_KEY, false);
// http://www.google.com/design/spec/style/typography.html#typography-line-height
int defaultFontSize = Math.round(12 * dipInPixels);
// Make it divisible by 2 since that is the minimal adjustment step:
if (defaultFontSize % 2 == 1) defaultFontSize--;
try {
mFontSize = Integer.parseInt(prefs.getString(FONTSIZE_KEY, Integer.toString(defaultFontSize)));
} catch (NumberFormatException | ClassCastException e) {
mFontSize = defaultFontSize;
}
mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
}
boolean isFullScreen() {
return mFullScreen;
}
void setFullScreen(Context context, boolean newValue) {
mFullScreen = newValue;
PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(FULLSCREEN_KEY, newValue).apply();
}
boolean isShowExtraKeys() {
return mShowExtraKeys;
}
boolean toggleShowExtraKeys(Context context) {
mShowExtraKeys = !mShowExtraKeys;
PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SHOW_EXTRA_KEYS_KEY, mShowExtraKeys).apply();
return mShowExtraKeys;
}
int getFontSize() {
return mFontSize;
}
void changeFontSize(Context context, boolean increase) {
mFontSize += (increase ? 1 : -1) * 2;
mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
prefs.edit().putString(FONTSIZE_KEY, Integer.toString(mFontSize)).apply();
}
static void storeCurrentSession(Context context, TerminalSession session) {
PreferenceManager.getDefaultSharedPreferences(context).edit().putString(TermuxPreferences.CURRENT_SESSION_KEY, session.mHandle).apply();
}
static TerminalSession getCurrentSession(TermuxActivity context) {
String sessionHandle = PreferenceManager.getDefaultSharedPreferences(context).getString(TermuxPreferences.CURRENT_SESSION_KEY, "");
for (int i = 0, len = context.mTermService.getSessions().size(); i < len; i++) {
TerminalSession session = context.mTermService.getSessions().get(i);
if (session.mHandle.equals(sessionHandle)) return session;
}
return null;
}
public void reloadFromProperties(Context context) {
try {
File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
if (!propsFile.exists())
propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
Properties props = new Properties();
if (propsFile.isFile() && propsFile.canRead()) {
try (FileInputStream in = new FileInputStream(propsFile)) {
props.load(in);
}
}
switch (props.getProperty("bell-character", "vibrate")) {
case "beep":
mBellBehaviour = BELL_BEEP;
break;
case "ignore":
mBellBehaviour = BELL_IGNORE;
break;
default: // "vibrate".
mBellBehaviour = BELL_VIBRATE;
break;
}
mBackIsEscape = "escape".equals(props.getProperty("back-key", "back"));
shortcuts.clear();
parseAction("shortcut.create-session", SHORTCUT_ACTION_CREATE_SESSION, props);
parseAction("shortcut.next-session", SHORTCUT_ACTION_NEXT_SESSION, props);
parseAction("shortcut.previous-session", SHORTCUT_ACTION_PREVIOUS_SESSION, props);
parseAction("shortcut.rename-session", SHORTCUT_ACTION_RENAME_SESSION, props);
} catch (Exception e) {
Toast.makeText(context, "Error loading properties: " + e.getMessage(), Toast.LENGTH_LONG).show();
Log.e("termux", "Error loading props", e);
}
}
public static final int SHORTCUT_ACTION_CREATE_SESSION = 1;
public static final int SHORTCUT_ACTION_NEXT_SESSION = 2;
public static final int SHORTCUT_ACTION_PREVIOUS_SESSION = 3;
public static final int SHORTCUT_ACTION_RENAME_SESSION = 4;
public final static class KeyboardShortcut {
public KeyboardShortcut(int codePoint, int shortcutAction) {
this.codePoint = codePoint;
this.shortcutAction = shortcutAction;
}
final int codePoint;
final int shortcutAction;
}
final List<KeyboardShortcut> shortcuts = new ArrayList<>();
private void parseAction(String name, int shortcutAction, Properties props) {
String value = props.getProperty(name);
if (value == null) return;
String[] parts = value.toLowerCase().trim().split("\\+");
String input = parts.length == 2 ? parts[1].trim() : null;
if (!(parts.length == 2 && parts[0].trim().equals("ctrl")) || input.isEmpty() || input.length() > 2) {
Log.e("termux", "Keyboard shortcut '" + name + "' is not Ctrl+<something>");
return;
}
char c = input.charAt(0);
int codePoint = c;
if (Character.isLowSurrogate(c)) {
if (input.length() != 2 || Character.isHighSurrogate(input.charAt(1))) {
Log.e("termux", "Keyboard shortcut '" + name + "' is not Ctrl+<something>");
return;
} else {
codePoint = Character.toCodePoint(input.charAt(1), c);
}
}
shortcuts.add(new KeyboardShortcut(codePoint, shortcutAction));
}
}