Initial setup screen (#212)

* enabled the launcher icon

* added an initial setup screen, for when TT9 is disabled

* documentation update

src/io/github/sspanak/tt9/ime/helpers/GlobalKeyboardSettings.java

@@ -0,0 +1,27 @@
+package io.github.sspanak.tt9.ime.helpers;
+
+import android.content.Context;
+import android.view.inputmethod.InputMethodInfo;
+import android.view.inputmethod.InputMethodManager;
+
+
+public class GlobalKeyboardSettings {
+	private final InputMethodManager inputManager;
+	private final String packageName;
+
+
+	public GlobalKeyboardSettings(Context context, InputMethodManager inputManager) {
+		this.inputManager = inputManager;
+		packageName = context.getPackageName();
+	}
+
+
+	public boolean isTT9Enabled() {
+		for (final InputMethodInfo imeInfo : inputManager.getEnabledInputMethodList()) {
+			if (packageName.equals(imeInfo.getPackageName())) {
+				return true;
+			}
+		}
+		return false;
+	}
+}

src/io/github/sspanak/tt9/preferences/PreferencesActivity.java

@@ -1,6 +1,7 @@
 package io.github.sspanak.tt9.preferences;
 
 import android.os.Bundle;
+import android.view.inputmethod.InputMethodManager;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.ActionBar;
@@ -14,20 +15,24 @@ import androidx.preference.PreferenceFragmentCompat;
 import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.db.DictionaryDb;
 import io.github.sspanak.tt9.db.DictionaryLoader;
+import io.github.sspanak.tt9.ime.helpers.GlobalKeyboardSettings;
 import io.github.sspanak.tt9.ime.helpers.InputModeValidator;
 import io.github.sspanak.tt9.preferences.screens.AppearanceScreen;
 import io.github.sspanak.tt9.preferences.screens.DictionariesScreen;
 import io.github.sspanak.tt9.preferences.screens.HotkeysScreen;
+import io.github.sspanak.tt9.preferences.screens.SetupScreen;
 import io.github.sspanak.tt9.preferences.screens.KeyPadScreen;
 import io.github.sspanak.tt9.preferences.screens.MainSettingsScreen;
 import io.github.sspanak.tt9.ui.DictionaryLoadingBar;
 
 public class PreferencesActivity extends AppCompatActivity implements PreferenceFragmentCompat.OnPreferenceStartFragmentCallback {
 	public SettingsStore settings;
+	public GlobalKeyboardSettings globalKeyboardSettings;
 
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
+		globalKeyboardSettings = new GlobalKeyboardSettings(this, (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE));
 		settings = new SettingsStore(this);
 		applyTheme();
 
@@ -78,7 +83,7 @@ public class PreferencesActivity extends AppCompatActivity implements Preference
 			case "KeyPad":
 				return new KeyPadScreen(this);
 			default:
-				return new MainSettingsScreen(this);
+				return globalKeyboardSettings.isTT9Enabled() ? new MainSettingsScreen(this) : new SetupScreen(this);
 		}
 	}
 
@@ -107,7 +112,7 @@ public class PreferencesActivity extends AppCompatActivity implements Preference
 		}
 
 		setContentView(R.layout.preferences_container);
-		displayScreen(new MainSettingsScreen(this), false);
+		displayScreen(getScreen("default"), false);
 	}
 
 

src/io/github/sspanak/tt9/preferences/items/ItemSelectGlobalKeyboard.java

@@ -0,0 +1,27 @@
+package io.github.sspanak.tt9.preferences.items;
+
+import android.content.Intent;
+import android.provider.Settings;
+
+import androidx.preference.Preference;
+
+import io.github.sspanak.tt9.preferences.PreferencesActivity;
+
+public class ItemSelectGlobalKeyboard extends ItemClickable {
+	private final Intent clickIntent;
+	private final PreferencesActivity activity;
+
+	public ItemSelectGlobalKeyboard(Preference item, PreferencesActivity prefs) {
+		super(item);
+		this.activity = prefs;
+
+		clickIntent = new Intent(Settings.ACTION_INPUT_METHOD_SETTINGS);
+		clickIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+	}
+
+	@Override
+	protected boolean onClick(Preference p) {
+		activity.startActivity(clickIntent);
+		return false;
+	}
+}

src/io/github/sspanak/tt9/preferences/items/ItemSetDefaultGlobalKeyboard.java

@@ -0,0 +1,23 @@
+package io.github.sspanak.tt9.preferences.items;
+
+import android.content.Context;
+import android.view.inputmethod.InputMethodManager;
+
+import androidx.preference.Preference;
+
+import io.github.sspanak.tt9.preferences.PreferencesActivity;
+
+public class ItemSetDefaultGlobalKeyboard extends ItemClickable {
+	private final PreferencesActivity activity;
+
+	public ItemSetDefaultGlobalKeyboard(Preference item, PreferencesActivity prefs) {
+		super(item);
+		this.activity = prefs;
+	}
+
+	@Override
+	protected boolean onClick(Preference p) {
+		((InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE)).showInputMethodPicker();
+		return false;
+	}
+}

src/io/github/sspanak/tt9/preferences/screens/SetupScreen.java

@@ -0,0 +1,60 @@
+package io.github.sspanak.tt9.preferences.screens;
+
+import androidx.preference.Preference;
+
+import io.github.sspanak.tt9.BuildConfig;
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.preferences.PreferencesActivity;
+import io.github.sspanak.tt9.preferences.items.ItemSelectGlobalKeyboard;
+import io.github.sspanak.tt9.preferences.items.ItemSetDefaultGlobalKeyboard;
+
+public class SetupScreen extends BaseScreenFragment {
+	public SetupScreen() { init(); }
+	public SetupScreen(PreferencesActivity activity) { init(activity); }
+
+	@Override protected int getTitle() { return R.string.pref_category_setup;}
+	@Override protected int getXml() { return R.xml.prefs_screen_setup; }
+
+	@Override
+	public void onCreate() {
+		createKeyboardSection();
+		createAboutSection();
+	}
+
+	@Override
+	public void onResume() {
+		super.onResume();
+		createKeyboardSection();
+	}
+
+	private void createKeyboardSection() {
+		boolean isTT9On = activity.globalKeyboardSettings.isTT9Enabled();
+
+		Preference statusItem = findPreference("global_tt9_status");
+		if (statusItem != null) {
+			statusItem.setSummary(
+				isTT9On ? R.string.setup_tt9_on : R.string.setup_tt9_off
+			);
+
+			new ItemSelectGlobalKeyboard(statusItem, activity).enableClickHandler();
+		}
+
+		Preference defaultKeyboardItem = findPreference("global_default_keyboard");
+		if (defaultKeyboardItem != null) {
+			new ItemSetDefaultGlobalKeyboard(defaultKeyboardItem, activity).enableClickHandler();
+		}
+
+		Preference goToMain = findPreference("goto_main_screen");
+		if (goToMain != null) {
+			goToMain.setEnabled(isTT9On);
+		}
+	}
+
+
+	private void createAboutSection() {
+		Preference vi = findPreference("version_info");
+		if (vi != null) {
+			vi.setSummary(BuildConfig.VERSION_FULL);
+		}
+	}
+}