Undo/Redo (#777)

app/src/main/java/io/github/sspanak/tt9/ime/CommandHandler.java

@@ -1,5 +1,7 @@
 package io.github.sspanak.tt9.ime;
 
+import android.view.KeyEvent;
+
 import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.db.DataStore;
 import io.github.sspanak.tt9.db.words.DictionaryLoader;
@@ -57,9 +59,15 @@ abstract public class CommandHandler extends TextEditingHandler {
 			case 3:
 				toggleVoiceInput();
 				break;
+			case 4:
+				undo();
+				break;
 			case 5:
 				showTextEditingPalette();
 				break;
+			case 6:
+				redo();
+				break;
 			case 8:
 				selectKeyboard();
 				break;
@@ -250,4 +258,14 @@ abstract public class CommandHandler extends TextEditingHandler {
 
 		return true;
 	}
+
+
+	protected boolean undo() {
+		return textField.sendDownUpKeyEvents(KeyEvent.KEYCODE_Z, false, true);
+	}
+
+
+	protected boolean redo() {
+		return textField.sendDownUpKeyEvents(KeyEvent.KEYCODE_Z, true, true);
+	}
 }

app/src/main/java/io/github/sspanak/tt9/ime/HotkeyHandler.java

@@ -130,6 +130,14 @@ public abstract class HotkeyHandler extends CommandHandler {
 			return onKeyShowSettings(validateOnly);
 		}
 
+		if (keyCode == settings.getKeyUndo()) {
+			return onKeyUndo(validateOnly);
+		}
+
+		if (keyCode == settings.getKeyRedo()) {
+			return onKeyRedo(validateOnly);
+		}
+
 		if (keyCode == settings.getKeyVoiceInput()) {
 			return onKeyVoiceInput(validateOnly);
 		}
@@ -416,6 +424,24 @@ public abstract class HotkeyHandler extends CommandHandler {
 	}
 
 
+	public boolean onKeyUndo(boolean validateOnly) {
+		if (!isInputViewShown() || shouldBeOff()) {
+			return false;
+		}
+
+		return validateOnly || undo();
+	}
+
+
+	public boolean onKeyRedo(boolean validateOnly) {
+		if (!isInputViewShown() || shouldBeOff()) {
+			return false;
+		}
+
+		return validateOnly || redo();
+	}
+
+
 	private boolean onKeyVoiceInput(boolean validateOnly) {
 		if (!isInputViewShown() || shouldBeOff() || !voiceInputOps.isAvailable()) {
 			return false;

app/src/main/java/io/github/sspanak/tt9/preferences/settings/SettingsHotkeys.java

@@ -7,7 +7,7 @@ import android.view.KeyEvent;
 import io.github.sspanak.tt9.util.Logger;
 
 public class SettingsHotkeys extends SettingsUI {
-	private static final String HOTKEY_VERSION = "hotkeys_v5";
+	private static final String HOTKEY_VERSION = "hotkeys_v6";
 
 	public static final String FUNC_ADD_WORD = "key_add_word";
 	public static final String FUNC_BACKSPACE = "key_backspace";
@@ -23,6 +23,8 @@ public class SettingsHotkeys extends SettingsUI {
 	public static final String FUNC_SHIFT = "key_shift";
 	public static final String FUNC_SPACE_KOREAN = "key_space_korean";
 	public static final String FUNC_SHOW_SETTINGS = "key_show_settings";
+	public static final String FUNC_UNDO = "key_undo";
+	public static final String FUNC_REDO = "key_redo";
 	public static final String FUNC_VOICE_INPUT = "key_voice_input";
 
 	public static final String[] FUNCTIONS = {
@@ -40,6 +42,8 @@ public class SettingsHotkeys extends SettingsUI {
 		FUNC_SHIFT,
 		FUNC_SPACE_KOREAN,
 		FUNC_SHOW_SETTINGS,
+		FUNC_UNDO,
+		FUNC_REDO,
 		FUNC_VOICE_INPUT,
 	};
 
@@ -62,7 +66,7 @@ public class SettingsHotkeys extends SettingsUI {
 	 */
 	public void setDefaultKeys() {
 		// no default keys
-		String[] unassigned = { FUNC_ADD_WORD, FUNC_EDIT_TEXT, FUNC_SELECT_KEYBOARD, FUNC_SHOW_SETTINGS, FUNC_VOICE_INPUT };
+		String[] unassigned = { FUNC_ADD_WORD, FUNC_EDIT_TEXT, FUNC_SELECT_KEYBOARD, FUNC_SHOW_SETTINGS, FUNC_UNDO, FUNC_REDO, FUNC_VOICE_INPUT };
 		for (String key : unassigned) {
 			prefsEditor.putString(key, String.valueOf(KeyEvent.KEYCODE_UNKNOWN));
 		}
@@ -172,6 +176,12 @@ public class SettingsHotkeys extends SettingsUI {
 	public int getKeyShowSettings() {
 		return getFunctionKey(FUNC_SHOW_SETTINGS);
 	}
+	public int getKeyUndo() {
+		return getFunctionKey(FUNC_UNDO);
+	}
+	public int getKeyRedo() {
+		return getFunctionKey(FUNC_REDO);
+	}
 	public int getKeyVoiceInput() {
 		return getFunctionKey(FUNC_VOICE_INPUT);
 	}

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyF4.java

@@ -0,0 +1,23 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+public class SoftKeyF4 extends SoftKeyFn {
+	public SoftKeyF4(Context context) {
+		super(context);
+	}
+
+	public SoftKeyF4(Context context, AttributeSet attrs) {
+		super(context, attrs);
+	}
+
+	public SoftKeyF4(Context context, AttributeSet attrs, int defStyleAttr) {
+		super(context, attrs, defStyleAttr);
+	}
+
+	@Override
+	protected boolean handleRelease() {
+		return tt9 != null && tt9.onKeyUndo(false);
+	}
+}

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyF6.java

@@ -0,0 +1,23 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+public class SoftKeyF6 extends SoftKeyFn {
+	public SoftKeyF6(Context context) {
+		super(context);
+	}
+
+	public SoftKeyF6(Context context, AttributeSet attrs) {
+		super(context, attrs);
+	}
+
+	public SoftKeyF6(Context context, AttributeSet attrs, int defStyleAttr) {
+		super(context, attrs, defStyleAttr);
+	}
+
+	@Override
+	protected boolean handleRelease() {
+		return tt9 != null && tt9.onKeyRedo(false);
+	}
+}

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyPunctuation.java

@@ -2,17 +2,26 @@ package io.github.sspanak.tt9.ui.main.keys;
 
 import android.content.Context;
 import android.util.AttributeSet;
+import android.view.ViewParent;
+import android.widget.RelativeLayout;
 
-import io.github.sspanak.tt9.R;
-import io.github.sspanak.tt9.languages.LanguageKind;
 import io.github.sspanak.tt9.preferences.settings.SettingsStore;
 import io.github.sspanak.tt9.util.chars.Characters;
 
-public class SoftKeyPunctuation extends SoftKey {
+abstract public class SoftKeyPunctuation extends BaseSoftKeyWithIcons {
 	public SoftKeyPunctuation(Context context) { super(context); }
 	public SoftKeyPunctuation(Context context, AttributeSet attrs) { super(context, attrs); }
 	public SoftKeyPunctuation(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
 
+
+	abstract protected String getKeyChar();
+
+
+	protected boolean isTextEditingOn() {
+		return tt9 != null && tt9.isTextEditingActive();
+	}
+
+
 	protected boolean isHiddenWhenLongSpace() {
 		return
 			tt9 != null
@@ -21,18 +30,13 @@ public class SoftKeyPunctuation extends SoftKey {
 			&& !hasLettersOnAllKeys();
 	}
 
-	protected boolean isTransparentWhenTextEditing() {
-		return tt9 != null && tt9.isTextEditingActive();
-	}
 
 	@Override
 	protected boolean handleRelease() {
-		return
-			tt9 != null
-			&& !tt9.isTextEditingActive()
-			&& tt9.onText(getKeyChar(), false);
+		return tt9 != null && tt9.onText(getKeyChar(), false);
 	}
 
+
 	@Override
 	protected String getTitle() {
 		String keyChar = getKeyChar();
@@ -44,42 +48,6 @@ public class SoftKeyPunctuation extends SoftKey {
 		};
 	}
 
-	protected String getKeyChar() {
-		int keyId = getId();
-		if (keyId == R.id.soft_key_punctuation_1) {
-			return getKey1Char();
-		} else if (keyId == R.id.soft_key_punctuation_2) {
-			return getKey2Char();
-		}
-
-		return "";
-	}
-
-	protected String getKey1Char() {
-		if (tt9 == null) return "";
-		if (tt9.isInputModePhone()) return "*";
-		if (tt9.isInputModeNumeric()) return ",";
-
-		if (LanguageKind.isChinese(tt9.getLanguage()) || LanguageKind.isJapanese(tt9.getLanguage())) {
-			return Characters.ZH_EXCLAMATION_MARK;
-		}
-
-		return "!";
-	}
-
-	protected String getKey2Char() {
-		if (tt9 == null) return "";
-		if (tt9.isInputModePhone()) return "#";
-		if (tt9.isInputModeNumeric()) return ".";
-
-		if (LanguageKind.isArabic(tt9.getLanguage())) return Characters.AR_QUESTION_MARK;
-		if (LanguageKind.isGreek(tt9.getLanguage())) return Characters.GR_QUESTION_MARK;
-		if (LanguageKind.isChinese(tt9.getLanguage()) || LanguageKind.isJapanese(tt9.getLanguage())) {
-			return Characters.ZH_QUESTION_MARK;
-		}
-
-		return "?";
-	}
 
 	@Override
 	public void setHeight(int height) {
@@ -93,12 +61,12 @@ public class SoftKeyPunctuation extends SoftKey {
 
 	@Override
 	public void render() {
-		if (isHiddenWhenLongSpace()) {
-			setVisibility(GONE);
-		} else if (isTransparentWhenTextEditing()) {
-			setVisibility(INVISIBLE);
-		} else {
-			setVisibility(VISIBLE);
+		boolean isHidden = isHiddenWhenLongSpace();
+		setVisibility(isHidden ? GONE : VISIBLE);
+
+		ViewParent parent = getParent();
+		if (parent instanceof RelativeLayout) {
+			((RelativeLayout) parent).setVisibility(isHidden ? RelativeLayout.GONE : RelativeLayout.VISIBLE);
 		}
 
 		super.render();

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyPunctuationLeft.java

@@ -0,0 +1,43 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.languages.LanguageKind;
+import io.github.sspanak.tt9.util.chars.Characters;
+
+public class SoftKeyPunctuationLeft extends SoftKeyPunctuation {
+	public SoftKeyPunctuationLeft(Context context) { super(context); }
+	public SoftKeyPunctuationLeft(Context context, AttributeSet attrs) { super(context, attrs); }
+	public SoftKeyPunctuationLeft(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
+
+	@Override
+	protected String getKeyChar() {
+		if (tt9 == null) return "";
+		if (tt9.isInputModePhone()) return "*";
+		if (tt9.isInputModeNumeric()) return ",";
+		if (tt9.isTextEditingActive()) return "↶";
+
+		if (LanguageKind.isChinese(tt9.getLanguage()) || LanguageKind.isJapanese(tt9.getLanguage())) {
+			return Characters.ZH_EXCLAMATION_MARK;
+		}
+
+		return "!";
+	}
+
+	@Override
+	protected boolean handleRelease() {
+		return isTextEditingOn() ? tt9.onKeyUndo(false) : super.handleRelease();
+	}
+
+	@Override
+	protected String getTitle() {
+		return isTextEditingOn() ? "" : super.getTitle();
+	}
+
+	@Override
+	protected int getCentralIcon() {
+		return isTextEditingOn() && !isHiddenWhenLongSpace() ? R.drawable.ic_fn_undo : -1;
+	}
+}

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyPunctuationLeftShort.java

@@ -0,0 +1,11 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+public class SoftKeyPunctuationLeftShort extends SoftKeyPunctuationLeft {
+	public SoftKeyPunctuationLeftShort(Context context) { super(context); }
+	public SoftKeyPunctuationLeftShort(Context context, AttributeSet attrs) { super(context, attrs); }
+	public SoftKeyPunctuationLeftShort(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
+	@Override protected boolean isHiddenWhenLongSpace() { return false; }
+}

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyPunctuationRight.java

@@ -0,0 +1,44 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.languages.LanguageKind;
+import io.github.sspanak.tt9.util.chars.Characters;
+
+public class SoftKeyPunctuationRight extends SoftKeyPunctuation {
+	public SoftKeyPunctuationRight(Context context) { super(context); }
+	public SoftKeyPunctuationRight(Context context, AttributeSet attrs) { super(context, attrs); }
+	public SoftKeyPunctuationRight(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
+
+	protected String getKeyChar() {
+		if (tt9 == null) return "";
+		if (tt9.isInputModePhone()) return "#";
+		if (tt9.isInputModeNumeric()) return ".";
+		if (tt9.isTextEditingActive()) return "↷";
+
+		if (LanguageKind.isArabic(tt9.getLanguage())) return Characters.AR_QUESTION_MARK;
+		if (LanguageKind.isGreek(tt9.getLanguage())) return Characters.GR_QUESTION_MARK;
+		if (LanguageKind.isChinese(tt9.getLanguage()) || LanguageKind.isJapanese(tt9.getLanguage())) {
+			return Characters.ZH_QUESTION_MARK;
+		}
+
+		return "?";
+	}
+
+	@Override
+	protected boolean handleRelease() {
+		return tt9 != null && tt9.isTextEditingActive() ? tt9.onKeyRedo(false) : super.handleRelease();
+	}
+
+	@Override
+	protected String getTitle() {
+		return isTextEditingOn() ? "" : super.getTitle();
+	}
+
+	@Override
+	protected int getCentralIcon() {
+		return isTextEditingOn() && !isHiddenWhenLongSpace() ? R.drawable.ic_fn_redo : -1;
+	}
+}

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyPunctuationRightShort.java

@@ -0,0 +1,11 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+public class SoftKeyPunctuationRightShort extends SoftKeyPunctuationRight {
+	public SoftKeyPunctuationRightShort(Context context) { super(context); }
+	public SoftKeyPunctuationRightShort(Context context, AttributeSet attrs) { super(context, attrs); }
+	public SoftKeyPunctuationRightShort(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
+	@Override protected boolean isHiddenWhenLongSpace() { return false; }
+}

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyPunctuationShort.java

@@ -1,29 +0,0 @@
-package io.github.sspanak.tt9.ui.main.keys;
-
-import android.content.Context;
-import android.util.AttributeSet;
-
-import io.github.sspanak.tt9.R;
-
-public class SoftKeyPunctuationShort extends SoftKeyPunctuation {
-	public SoftKeyPunctuationShort(Context context) { super(context); }
-	public SoftKeyPunctuationShort(Context context, AttributeSet attrs) { super(context, attrs); }
-	public SoftKeyPunctuationShort(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
-
-	@Override protected boolean isHiddenWhenLongSpace() { return false; }
-
-	protected String getKeyChar() {
-		if (!validateTT9Handler()) {
-			return "";
-		}
-
-		int keyId = getId();
-		if (keyId == R.id.soft_key_punctuation_201) {
-			return getKey1Char();
-		} else if (keyId == R.id.soft_key_punctuation_202) {
-			return getKey2Char();
-		}
-
-		return super.getKeyChar();
-	}
-}

app/src/main/res/drawable/ic_fn_redo.xml

@@ -0,0 +1,3 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:autoMirrored="true" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+	<path android:fillColor="@android:color/white" android:pathData="M18.4,10.6C16.55,8.99 14.15,8 11.5,8c-4.65,0 -8.58,3.03 -9.96,7.22L3.9,16c1.05,-3.19 4.05,-5.5 7.6,-5.5 1.95,0 3.73,0.72 5.12,1.88L13,16h9V7l-3.6,3.6z"/>
+</vector>

app/src/main/res/drawable/ic_fn_undo.xml

@@ -0,0 +1,3 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:autoMirrored="false" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+	<path android:fillColor="@android:color/white" android:pathData="M12.5,8c-2.65,0 -5.05,0.99 -6.9,2.6L2,7v9h9l-3.62,-3.62c1.39,-1.16 3.16,-1.88 5.12,-1.88 3.54,0 6.55,2.31 7.6,5.5l2.37,-0.78C21.08,11.03 17.15,8 12.5,8z"/>
+</vector>

app/src/main/res/layout/panel_long_spacebar.xml

@@ -4,9 +4,12 @@
 	style="@style/TTheme.Numpad.CentralBlock.Row.LongSpacebar"
 	android:id="@+id/panel_long_spacebar">
 
-	<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuationShort
-		style="@style/TTheme.Numpad.Key.ShortPunctuation"
-		android:id="@+id/soft_key_punctuation_201" />
+	<RelativeLayout style="@style/TTheme.Numpad.Key.ShortPunctuation.Overlay.Wrapper">
+		<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuationLeftShort
+			style="@style/TTheme.Numpad.Key.Number"
+			android:id="@+id/soft_key_punctuation_201" />
+		<include layout="@layout/key_overlay_icons" />
+	</RelativeLayout>
 
 	<RelativeLayout style="@style/TTheme.Numpad.Key.LongSpace.Overlay.Wrapper">
 		<io.github.sspanak.tt9.ui.main.keys.SoftKeyNumber0Long
@@ -15,8 +18,11 @@
 		<include layout="@layout/key_overlay_number_hold_text" />
 	</RelativeLayout>
 
-	<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuationShort
-		style="@style/TTheme.Numpad.Key.ShortPunctuation"
-		android:id="@+id/soft_key_punctuation_202" />
+	<RelativeLayout style="@style/TTheme.Numpad.Key.ShortPunctuation.Overlay.Wrapper">
+		<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuationRightShort
+			style="@style/TTheme.Numpad.Key.Number"
+			android:id="@+id/soft_key_punctuation_202" />
+		<include layout="@layout/key_overlay_icons" />
+	</RelativeLayout>
 
 </LinearLayout>

app/src/main/res/layout/panel_numpad_digits.xml

@@ -23,7 +23,7 @@
 			<include layout="@layout/key_overlay_number_hold_text" />
 		</RelativeLayout>
 
-		<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuation
+		<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuationLeft
 			style="@style/TTheme.Numpad.Key.Number"
 			android:id="@+id/soft_key_punctuation_1" />
 	</LinearLayout>
@@ -84,7 +84,7 @@
 			<include layout="@layout/key_overlay_number_hold_text" />
 		</RelativeLayout>
 
-		<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuation
+		<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuationRight
 			style="@style/TTheme.Numpad.Key.Number"
 			android:id="@+id/soft_key_punctuation_2" />
 	</LinearLayout>

app/src/main/res/layout/panel_numpad_text_editing.xml

@@ -27,9 +27,12 @@
 			<include layout="@layout/key_overlay_icons" />
 		</RelativeLayout>
 
-		<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuation
-			style="@style/TTheme.Numpad.Key.Large.Placeholder"
-			android:id="@+id/soft_key_punctuation_101" />
+		<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
+			<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuationLeft
+				style="@style/TTheme.Numpad.Key.Number"
+				android:id="@+id/soft_key_punctuation_101" />
+			<include layout="@layout/key_overlay_icons" />
+		</RelativeLayout>
 
 	</LinearLayout>
 
@@ -95,9 +98,12 @@
 			<include layout="@layout/key_overlay_icons" />
 		</RelativeLayout>
 
-		<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuation
-			style="@style/TTheme.Numpad.Key.Large.Placeholder"
-			android:id="@+id/soft_key_punctuation_102" />
+		<RelativeLayout style="@style/TTheme.Numpad.Key.Overlay.Wrapper">
+			<io.github.sspanak.tt9.ui.main.keys.SoftKeyPunctuationRight
+				style="@style/TTheme.Numpad.Key.Number"
+				android:id="@+id/soft_key_punctuation_102" />
+			<include layout="@layout/key_overlay_icons" />
+		</RelativeLayout>
 
 	</LinearLayout>
 </merge>

app/src/main/res/layout/panel_small_command_palette.xml

@@ -20,11 +20,21 @@
 		android:id="@+id/soft_key_3"
 		android:drawableBottom="@drawable/ic_fn_voice" />
 
+	<io.github.sspanak.tt9.ui.main.keys.SoftKeyF4
+		style="@style/TTheme.CommandPalette.Key"
+		android:id="@+id/soft_key_4"
+		android:drawableBottom="@drawable/ic_fn_undo" />
+
 	<io.github.sspanak.tt9.ui.main.keys.SoftKeyF5
 		style="@style/TTheme.CommandPalette.Key"
 		android:id="@+id/soft_key_5"
 		android:drawableBottom="@drawable/ic_txt_cut" />
 
+	<io.github.sspanak.tt9.ui.main.keys.SoftKeyF6
+		style="@style/TTheme.CommandPalette.Key"
+		android:id="@+id/soft_key_6"
+		android:drawableBottom="@drawable/ic_fn_redo" />
+
 	<io.github.sspanak.tt9.ui.main.keys.SoftKeyFn
 		style="@style/TTheme.CommandPalette.Key"
 		android:id="@+id/soft_key_8"

app/src/main/res/values-bg/strings.xml

@@ -177,6 +177,7 @@
 	<string name="virtual_numpad_alignment_left">Вляво</string>
 	<string name="virtual_numpad_alignment_right">Вдясно</string>
 	<string name="function_select_keyboard">Избор на клавиатура</string>
+	<string name="function_redo">Повторение (Redo)</string>
 	<string name="function_voice_input">Гласово въвеждане</string>
 	<string name="add_word_no_confirmation">Добавяне без потвърждение</string>
 	<string name="dictionary_import_custom_words">Импортирай</string>
@@ -211,4 +212,5 @@
 	<string name="function_assign_instructions">* Натиснете или задръжте клавиш, за да го присвоите на функцията „%1$s“.\n\n* Натиснете 0, за да отмените.\n\n* Натиснете 2, за да деактивирате функцията.</string>
 	<string name="pref_allow_composing_text">Показвай текст при съставяне</string>
 	<string name="pref_drag_resize">Оразмеряване чрез влачене</string>
+	<string name="function_undo">Отмяна (Undo)</string>
 </resources>

app/src/main/res/values-de/strings.xml

@@ -204,6 +204,7 @@
 	<string name="function_already_assigned">\tDie Taste \"%1$s\" ist bereits der Funktion \"%2$s\" zugewiesen. Möchten Sie sie \"%3$s\" zuweisen?</string>
 	<string name="function_assign_instructions">* Drücken oder halten Sie eine Taste, um sie der Funktion \"%1$s\" zuzuweisen.\n\n* Drücken Sie 0, um abzubrechen.\n\n* Drücken Sie 2, um die Funktion zu deaktivieren.</string>
 	<string name="function_reassign">Neu zuweisen</string>
+	<string name="function_redo">Wiederholen</string>
 	<string name="function_voice_input">Spracheingabe</string>
 	<string name="function_reset_keys_title">Standardtasten wiederherstellen</string>
 	<string name="key_hold_key">(halten)</string>
@@ -213,4 +214,5 @@
 	<string name="function_show_settings">Einstellungsbildschirm anzeigen</string>
 	<string name="pref_allow_composing_text">Zusammengesetzten Text anzeigen</string>
 	<string name="pref_drag_resize">Größe durch Ziehen ändern</string>
+	<string name="function_undo">Rückgängig machen</string>
 </resources>

app/src/main/res/values-es/strings.xml

@@ -98,6 +98,7 @@
 	<string name="function_reassign">Reasignar</string>
 	<string name="function_add_word">Agregar palabra</string>
 	<string name="function_show_settings">Mostrar configuración</string>
+	<string name="function_redo">Rehacer</string>
 	<string name="function_voice_input">Entrada por voz</string>
 	<string name="function_reset_keys_title">Restaurar valores de teclas por defecto</string>
 	<string name="function_reset_keys_done">Valores de teclas por defecto restaurados</string>
@@ -211,4 +212,5 @@
 	<string name="function_assign_instructions">* Presione o mantenga pulsada una tecla para asignarla a la función \"%1$s\".\n\n* Presione 0 para cancelar.\n\n* Presione 2 para desactivar la función.</string>
 	<string name="pref_allow_composing_text">Mostrar texto en composición</string>
 	<string name="pref_drag_resize">Redimensionar arrastrando</string>
+	<string name="function_undo">Deshacer</string>
 </resources>

app/src/main/res/values-fr/strings.xml

@@ -88,6 +88,7 @@
 	<string name="function_reassign">Réattribuer</string>
 	<string name="function_add_word">Ajouter un mot</string>
 	<string name="function_show_settings">Afficher les paramètres</string>
+	<string name="function_redo">Restaurer (Redo)</string>
 	<string name="function_voice_input">Saisie vocale</string>
 	<string name="function_reset_keys_title">Restaurer les paramètres par défaut</string>
 	<string name="function_reset_keys_done">Paramètres par défaut sont restaurés.</string>
@@ -211,4 +212,5 @@
 	<string name="key_hold_key">(maintenir)</string>
 	<string name="pref_allow_composing_text">Afficher texte en cours</string>
 	<string name="pref_drag_resize">Redimensionner en faisant glisser</string>
+	<string name="function_undo">Annuler (Undo)</string>
 </resources>

app/src/main/res/values-it/strings.xml

@@ -202,6 +202,7 @@
 	<string name="function_already_assigned">Il tasto \"%1$s\" è già assegnato alla funzione \"%2$s\". Vuoi assegnarlo a \"%3$s\"?</string>
 	<string name="function_assign_instructions">* Premi o tieni premuto un tasto per assegnarlo alla funzione \"%1$s\".\n\n* Premi 0 per annullare.\n\n* Premi 2 per disabilitare la funzione.</string>
 	<string name="function_reassign">Riassegnare</string>
+	<string name="function_redo">Ripristina (Redo)</string>
 	<string name="function_voice_input">Input vocale</string>
 	<string name="function_reset_keys_title">Ripristina i tasti predefiniti</string>
 	<string name="key_hold_key">(tenere premuto)</string>
@@ -214,5 +215,6 @@
 	<string name="function_show_settings">Mostrare impostazioni</string>
 	<string name="pref_allow_composing_text">Mostra testo in composizione</string>
 	<string name="pref_drag_resize">Ridimensionare trascinando</string>
+	<string name="function_undo">Annulla (Undo)</string>
 </resources>
 

app/src/main/res/values-iw/strings.xml

@@ -92,6 +92,7 @@
 	<string name="function_reassign">הקצה מחדש</string>
 	<string name="function_add_word">לחצן הוספת מילה</string>
 	<string name="function_show_settings">לחצן הצגת הגדרות</string>
+	<string name="function_redo">ביצוע חוזר (Redo)</string>
 	<string name="function_voice_input">קלט קולי</string>
 	<string name="function_reset_keys_title">שחזור לחצני ברירת מחדל</string>
 	<string name="function_reset_keys_done">הגדרות ברירת המחדל שוחזרו.</string>
@@ -218,4 +219,5 @@
 	<string name="function_previous_suggestion">הצעה קודמת</string>
 	<string name="pref_allow_composing_text">הצגת טקסט בהרכבה</string>
 	<string name="pref_drag_resize">שינוי גודל על ידי גרירה</string>
+	<string name="function_undo">ביטול (Undo)</string>
 </resources>

app/src/main/res/values-lt/strings.xml

@@ -100,6 +100,7 @@
 	<string name="function_reassign">Perpriskirti</string>
 	<string name="function_add_word">Pridėti žodį</string>
 	<string name="function_show_settings">Rodyti nustatymus</string>
+	<string name="function_redo">Pakartoti (Redo)</string>
 	<string name="function_voice_input">Balso įvestis</string>
 	<string name="function_reset_keys_title">Atkurti numatytąsias reikšmes</string>
 	<string name="function_reset_keys_done">Numatytosios reikšmės atkurtos.</string>
@@ -220,4 +221,5 @@
 	<string name="function_assign_instructions">* Paspauskite arba palaikykite klavišą, kad priskirtumėte jį funkcijai „%1$s“.\n\n* Paspauskite 0, kad atšauktumėte.\n\n* Paspauskite 2, kad išjungtumėte funkciją.</string>
 	<string name="pref_allow_composing_text">Rodyti rašomą tekstą</string>
 	<string name="pref_drag_resize">Keisti dydį tempiant</string>
+	<string name="function_undo">Atšaukti (Undo)</string>
 </resources>

app/src/main/res/values-nl/strings.xml

@@ -204,6 +204,7 @@
 	<string name="function_assign_instructions">* Druk of houd een toets ingedrukt om deze toe te wijzen aan de functie \"%1$s\".\n\n* Druk op 0 om te annuleren.\n\n* Druk op 2 om de functie uit te schakelen.</string>
 	<string name="function_reassign">Opnieuw toewijzen</string>
 	<string name="function_show_settings">Instellingen weergeven</string>
+	<string name="function_redo">Opnieuw uitvoeren</string>
 	<string name="function_voice_input">Spraakinvoer</string>
 	<string name="function_reset_keys_title">Standaardtoetsen herstellen</string>
 	<string name="key_hold_key">(Ingedrukt houden)</string>
@@ -212,4 +213,5 @@
 	<string name="function_next_language">Volgende taal</string>
 	<string name="function_filter_clear">Filter wissen</string>
 	<string name="pref_allow_composing_text">Compositietekst weergeven</string>
+	<string name="function_undo">Ongedaan maken</string>
 </resources>

app/src/main/res/values-pt-rBR/strings.xml

@@ -86,6 +86,7 @@
 	<string name="function_reassign">Reatribuir</string>
 	<string name="function_add_word">Adicionar palavra</string>
 	<string name="function_show_settings">Entrar em Configurações</string>
+	<string name="function_redo">Refazer</string>
 	<string name="function_voice_input">Entrada por Voz</string>
 	<string name="function_reset_keys_title">Restaurar Atalhos Padrão</string>
 	<string name="function_reset_keys_done">Atalhos Restaurados.</string>
@@ -218,4 +219,5 @@
 	<string name="function_previous_suggestion">Sugestão Anterior</string>
 	<string name="pref_allow_composing_text">Mostrar texto em composição</string>
 	<string name="pref_drag_resize">Redimensionar arrastando</string>
+	<string name="function_undo">Desfazer</string>
 </resources>

app/src/main/res/values-ru/strings.xml

@@ -89,6 +89,7 @@
 	<string name="function_reassign">Назначить заново</string>
 	<string name="function_add_word">Добавить слово</string>
 	<string name="function_show_settings">Настройки</string>
+	<string name="function_redo">Повторить (Redo)</string>
 	<string name="function_voice_input">Голосовой ввод</string>
 	<string name="function_reset_keys_title">Вернуть кнопки по умолчанию</string>
 	<string name="function_reset_keys_done">Настройки кнопок по умолчанию восстановлены.</string>
@@ -211,4 +212,5 @@
 	<string name="function_assign_instructions">* Нажмите или удерживайте клавишу, чтобы назначить её на функцию «%1$s».\n\n* Нажмите 0, чтобы отменить.\n\n* Нажмите 2, чтобы отключить функцию.</string>
 	<string name="pref_allow_composing_text">Показывать текст при вводе</string>
 	<string name="pref_drag_resize">Изменять размер перетаскиванием</string>
+	<string name="function_undo">Отменить (Undo)</string>
 </resources>

app/src/main/res/values-tr/strings.xml

@@ -154,6 +154,7 @@
 	<string name="function_reassign">Yeniden ata</string>
 	<string name="function_add_word">Kelime ekle</string>
 	<string name="function_show_settings">Ayarları göster</string>
+	<string name="function_redo">Yinele (Redo)</string>
 	<string name="function_voice_input">Sesli giriş</string>
 	<string name="function_reset_keys_title">Varsayılan Ayarlara Geri Dön</string>
 	<string name="function_reset_keys_done">Varsayılan tuş ayarlarına dönüldü.</string>
@@ -216,4 +217,5 @@
 	<string name="key_hold_key">(basılı tut)</string>
 	<string name="pref_allow_composing_text">Yazılan metni göster</string>
 	<string name="pref_drag_resize">Sürükleyerek yeniden boyutlandır</string>
+	<string name="function_undo">Geri al (Undo)</string>
 </resources>

app/src/main/res/values-uk/strings.xml

@@ -132,6 +132,7 @@
 	<string name="function_reassign">Перепризначити</string>
 	<string name="function_add_word">Додати слово</string>
 	<string name="function_show_settings">Показати налаштування</string>
+	<string name="function_redo">Повторити (Redo)</string>
 	<string name="function_voice_input">Голосове введення</string>
 	<string name="function_reset_keys_title">Відновити стандартні клавіші</string>
 	<string name="function_reset_keys_done">Стандартні налаштування клавіш відновленно.</string>
@@ -222,4 +223,5 @@
 	<string name="function_assign_instructions">* Натисніть або утримуйте клавішу, щоб призначити її функції «%1$s».\n\n* Натисніть 0, щоб скасувати.\n\n* Натисніть 2, щоб вимкнути функцію.</string>
 	<string name="pref_allow_composing_text">Показувати текст під час введення</string>
 	<string name="pref_drag_resize">Змінювати розмір перетягуванням</string>
+	<string name="function_undo">Скасувати (Undo)</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -176,6 +176,8 @@
 	<string name="function_next_mode">Input Mode</string>
 	<string name="function_select_keyboard">Select Keyboard</string>
 	<string name="function_show_settings">Show Settings</string>
+	<string name="function_undo">Undo</string>
+	<string name="function_redo">Redo</string>
 	<string name="function_voice_input">Voice Input</string>
 	<string name="function_reset_keys_title">Restore Default Keys</string>
 	<string name="function_reset_keys_done">Default key settings restored.</string>

app/src/main/res/values/styles.xml

@@ -267,6 +267,11 @@
 		<item name="android:layout_width">0dp</item>
 	</style>
 
+	<style name="TTheme.Numpad.Key.ShortPunctuation.Overlay.Wrapper" parent="TTheme.Numpad.Key.Number">
+		<item name="android:layout_weight">1</item>
+		<item name="android:layout_width">0dp</item>
+	</style>
+
 	<style name="TTheme.Numpad.Key.Overlay.Element" parent="">
 		<item name="android:layout_height">match_parent</item>
 		<item name="android:layout_width">match_parent</item>
@@ -387,14 +392,4 @@
 		<item name="rippleColor">@color/key_ok_ripple</item>
 	</style>
 
-	<style name="TTheme.Numpad.Key.Large.Placeholder" parent="TTheme.Numpad.Key.Number">
-		<item name="android:textColor">@android:color/transparent</item>
-		<item name="android:background">@android:color/transparent</item>
-	</style>
-
-	<style name="TTheme.Numpad.Key.ShortPunctuation" parent="TTheme.Numpad.Key.Number">
-		<item name="android:layout_weight">1</item>
-		<item name="android:layout_width">0dp</item>
-	</style>
-
 </resources>

app/src/main/res/xml/prefs_screen_hotkeys.xml

@@ -58,6 +58,14 @@
 		app:key="key_show_settings"
 		app:title="@string/function_show_settings" />
 
+	<io.github.sspanak.tt9.preferences.screens.hotkeys.PreferenceHotkey
+		app:key="key_undo"
+		app:title="@string/function_undo" />
+
+	<io.github.sspanak.tt9.preferences.screens.hotkeys.PreferenceHotkey
+		app:key="key_redo"
+		app:title="@string/function_redo" />
+
 	<io.github.sspanak.tt9.preferences.screens.hotkeys.PreferenceVoiceInputHotkey
 		app:key="key_voice_input"
 		app:title="@string/function_voice_input" />