broken down the SoftKey into smaller files

app/src/main/java/io/github/sspanak/tt9/ui/Vibration.java

@@ -7,7 +7,7 @@ import android.view.View;
 import androidx.annotation.NonNull;
 
 import io.github.sspanak.tt9.preferences.settings.SettingsStore;
-import io.github.sspanak.tt9.ui.main.keys.SoftKey;
+import io.github.sspanak.tt9.ui.main.keys.BaseClickableKey;
 import io.github.sspanak.tt9.ui.main.keys.SoftKeyNumber;
 
 public class Vibration {
@@ -23,7 +23,7 @@ public class Vibration {
 		return -1;
 	}
 
-	public static int getPressVibration(SoftKey key) {
+	public static int getPressVibration(BaseClickableKey key) {
 		return key instanceof SoftKeyNumber ? HapticFeedbackConstants.KEYBOARD_TAP : HapticFeedbackConstants.VIRTUAL_KEY;
 	}
 

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

@@ -0,0 +1,169 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.os.Handler;
+import android.os.Looper;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+
+import io.github.sspanak.tt9.ime.TraditionalT9;
+import io.github.sspanak.tt9.preferences.settings.SettingsStore;
+import io.github.sspanak.tt9.ui.Vibration;
+import io.github.sspanak.tt9.util.Logger;
+
+public class BaseClickableKey extends com.google.android.material.button.MaterialButton implements View.OnTouchListener, View.OnLongClickListener {
+	private final String LOG_TAG = getClass().getSimpleName();
+
+	protected TraditionalT9 tt9;
+	protected Vibration vibration;
+
+	private boolean hold = false;
+	private boolean repeat = false;
+	private long lastLongClickTime = 0;
+	private final Handler repeatHandler = new Handler(Looper.getMainLooper());
+
+	private static int lastPressedKey = -1;
+	private boolean ignoreLastPressedKey = false;
+
+
+	public BaseClickableKey(Context context) {
+		super(context);
+		setHapticFeedbackEnabled(false);
+		setOnTouchListener(this);
+		setOnLongClickListener(this);
+	}
+
+
+	public BaseClickableKey(Context context, AttributeSet attrs) {
+		super(context, attrs);
+		setHapticFeedbackEnabled(false);
+		setOnTouchListener(this);
+		setOnLongClickListener(this);
+	}
+
+
+	public BaseClickableKey(Context context, AttributeSet attrs, int defStyleAttr) {
+		super(context, attrs, defStyleAttr);
+		setHapticFeedbackEnabled(false);
+		setOnTouchListener(this);
+		setOnLongClickListener(this);
+	}
+
+
+	public void setTT9(TraditionalT9 tt9) {
+		this.tt9 = tt9;
+	}
+
+
+	protected boolean validateTT9Handler() {
+		if (tt9 == null) {
+			Logger.w(LOG_TAG, "Traditional T9 handler is not set. Ignoring key press.");
+			return false;
+		}
+
+		return true;
+	}
+
+
+	@Override
+	public boolean onTouch(View view, MotionEvent event) {
+		super.onTouchEvent(event);
+
+		int action = (event.getAction() & MotionEvent.ACTION_MASK);
+
+		if (action == MotionEvent.ACTION_DOWN) {
+			return handlePress();
+		} else if (action == MotionEvent.ACTION_UP) {
+			if (!repeat || hold) {
+				hold = false;
+				repeat = false;
+				boolean result = handleRelease();
+				lastPressedKey = ignoreLastPressedKey ? -1 : getId();
+				return result;
+			}
+			repeat = false;
+		}
+		return false;
+	}
+
+
+	@Override
+	public boolean onLongClick(View view) {
+		// sometimes this gets called twice, so we debounce the call to the repeating function
+		final long now = System.currentTimeMillis();
+		if (now - lastLongClickTime < SettingsStore.SOFT_KEY_DOUBLE_CLICK_DELAY) {
+			return false;
+		}
+
+		hold = true;
+		lastLongClickTime = now;
+		repeatOnLongPress();
+		return true;
+	}
+
+
+	/**
+	 * repeatOnLongPress
+	 * Repeatedly calls "handleHold()" upon holding the respective SoftKey, to simulate physical keyboard behavior.
+	 */
+	private void repeatOnLongPress() {
+		if (hold) {
+			repeat = true;
+			handleHold();
+			lastPressedKey = ignoreLastPressedKey ? -1 : getId();
+			repeatHandler.removeCallbacks(this::repeatOnLongPress);
+			repeatHandler.postDelayed(this::repeatOnLongPress, SettingsStore.SOFT_KEY_REPEAT_DELAY);
+		}
+	}
+
+
+	/**
+	 * preventRepeat
+	 * Prevents "handleHold()" from being called repeatedly when the SoftKey is being held.
+	 */
+	protected void preventRepeat() {
+		hold = false;
+		repeatHandler.removeCallbacks(this::repeatOnLongPress);
+	}
+
+
+	protected static int getLastPressedKey() {
+		return lastPressedKey;
+	}
+
+
+	protected void ignoreLastPressedKey() {
+		ignoreLastPressedKey = true;
+	}
+
+
+	protected boolean handlePress() {
+		if (validateTT9Handler()) {
+			vibrate(Vibration.getPressVibration(this));
+		}
+
+		return false;
+	}
+
+
+	protected void handleHold() {}
+
+
+	protected boolean handleRelease() {
+		return false;
+	}
+
+
+	public boolean isHoldEnabled() {
+		return true;
+	}
+
+
+	protected void vibrate(int vibrationType) {
+		if (tt9 != null) {
+			vibration = vibration == null ? new Vibration(tt9.getSettings(), this) : vibration;
+			vibration.vibrate(vibrationType);
+		}
+	}
+}

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

@@ -0,0 +1,118 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.content.res.AppCompatResources;
+
+public class BaseSoftKeyWithIcons extends SoftKey {
+	private Drawable icon = null;
+	private Drawable holdIcon = null;
+
+
+	public BaseSoftKeyWithIcons(Context context) { super(context); }
+	public BaseSoftKeyWithIcons(Context context, AttributeSet attrs) { super(context, attrs); }
+	public BaseSoftKeyWithIcons(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
+
+
+	/**
+	 * Returns the central icon resource ID. If the key does not have a central icon, return -1. The scale
+	 */
+	protected int getCentralIcon() { return -1; }
+
+
+	/**
+	 * A fail-safe method to get the central icon drawable.
+	 */
+	private Drawable getCentralIconCompat() {
+		if (icon == null && getCentralIcon() > 0) {
+			icon = AppCompatResources.getDrawable(getContext(), getCentralIcon());
+		} else if (getCentralIcon() <= 0) {
+			icon = null;
+		}
+
+		return icon;
+	}
+
+
+	/**
+	 * Same as getTitleScale(), but for keys that have icons instead of text.
+	 */
+	protected float getCentralIconScale() {
+		float keyboardSizeScale = Math.max(0.7f, Math.min(getTT9Width(), getTT9Height()));
+		keyboardSizeScale = Math.min(1.15f, keyboardSizeScale);
+		return keyboardSizeScale * Math.min(getScreenScaleX(), getScreenScaleY());
+	}
+
+
+	/**
+	 * Returns the hold icon resource ID. If the key does not have a hold icon, return -1. The scale
+	 * is controlled by super.getHoldElementScale().
+	 */
+	protected int getHoldIcon() { return -1; }
+
+
+	/**
+	 * A fail-safe method to get the hold icon drawable.
+	 */
+	private Drawable getHoldIconCompat() {
+		if (holdIcon == null && getHoldIcon() > 0) {
+			holdIcon = AppCompatResources.getDrawable(getContext(), getHoldIcon());
+		} else if (getHoldIcon() <= 0) {
+			holdIcon = null;
+		}
+
+		return holdIcon;
+	}
+
+
+	protected void resetIconCache() {
+		icon = null;
+		holdIcon = null;
+	}
+
+
+	/**
+	 * Renders one of the key icons. It could be either the central icon, in the place of the main title,
+	 * or a hold icon, displayed in the upper right corner.
+	 */
+	private void renderOverlayDrawable(String elementTag, @Nullable Drawable drawable, float scale, boolean isEnabled) {
+		if (overlay == null) {
+			return;
+		}
+
+		View element = ((RelativeLayout) getParent()).findViewWithTag(elementTag);
+		if (!(element instanceof ImageView el)) {
+			return;
+		}
+
+		el.setImageDrawable(drawable);
+		if (!isEnabled) {
+			el.setColorFilter(Color.GRAY);
+		} else {
+			el.clearColorFilter();
+		}
+
+		if (drawable != null) {
+			el.setScaleX(scale);
+			el.setScaleY(scale);
+		}
+	}
+
+
+	public void render() {
+		boolean isKeyEnabled = isEnabled();
+
+		getOverlayWrapper();
+		renderOverlayDrawable("overlay_icon", getCentralIconCompat(), getCentralIconScale(), isKeyEnabled);
+		renderOverlayDrawable("overlay_hold_icon", getHoldIconCompat(), getHoldElementScale(), isKeyEnabled && isHoldEnabled());
+
+		super.render();
+	}
+}

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

@@ -0,0 +1,27 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+public class BaseSoftKeyWithSideText extends BaseSoftKeyWithIcons {
+	public BaseSoftKeyWithSideText(Context context) { super(context); }
+	public BaseSoftKeyWithSideText(Context context, AttributeSet attrs) { super(context, attrs); }
+	public BaseSoftKeyWithSideText(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
+
+	protected String getTopText() { return null; }
+	protected String getRightText() { return null; }
+	protected String getBottomText() { return null; }
+	protected String getLeftText() { return null; }
+
+	@Override
+	public void render() {
+		boolean isKeyEnabled = isEnabled();
+
+		getOverlayWrapper();
+		renderOverlayText("overlay_top_text", getTopText(), getHoldElementScale(), isKeyEnabled);
+		renderOverlayText("overlay_right_text", getRightText(), getHoldElementScale(), isKeyEnabled);
+		renderOverlayText("overlay_bottom_text", getBottomText(), getHoldElementScale(), isKeyEnabled);
+		renderOverlayText("overlay_left_text", getLeftText(), getHoldElementScale(), isKeyEnabled);
+		super.render();
+	}
+}

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

@@ -11,8 +11,8 @@ import io.github.sspanak.tt9.preferences.settings.SettingsStore;
 import io.github.sspanak.tt9.util.Logger;
 import io.github.sspanak.tt9.util.Timer;
 
-abstract public class SwipeableKey extends SoftKey {
-	private static final String LOG_TAG = SwipeableKey.class.getSimpleName();
+abstract public class BaseSwipeableKey extends BaseSoftKeyWithSideText {
+	private static final String LOG_TAG = BaseSwipeableKey.class.getSimpleName();
 
 	private float HOLD_DURATION_THRESHOLD;
 	protected float SWIPE_X_THRESHOLD;
@@ -32,17 +32,17 @@ abstract public class SwipeableKey extends SoftKey {
 	private long swipeProcessingTimeAverage = 50;
 
 
-	public SwipeableKey(Context context) {
+	public BaseSwipeableKey(Context context) {
 		super(context);
 	}
 
 
-	public SwipeableKey(Context context, AttributeSet attrs) {
+	public BaseSwipeableKey(Context context, AttributeSet attrs) {
 		super(context, attrs);
 	}
 
 
-	public SwipeableKey(Context context, AttributeSet attrs, int defStyleAttr) {
+	public BaseSwipeableKey(Context context, AttributeSet attrs, int defStyleAttr) {
 		super(context, attrs, defStyleAttr);
 	}
 

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

@@ -1,91 +1,38 @@
 package io.github.sspanak.tt9.ui.main.keys;
 
 import android.content.Context;
-import android.graphics.Color;
 import android.graphics.Paint;
-import android.graphics.drawable.Drawable;
-import android.os.Handler;
-import android.os.Looper;
 import android.text.SpannableString;
 import android.text.style.RelativeSizeSpan;
 import android.util.AttributeSet;
-import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewParent;
-import android.widget.ImageView;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
 import androidx.annotation.Nullable;
-import androidx.appcompat.content.res.AppCompatResources;
 
 import io.github.sspanak.tt9.hacks.DeviceInfo;
-import io.github.sspanak.tt9.ime.TraditionalT9;
 import io.github.sspanak.tt9.preferences.settings.SettingsStore;
-import io.github.sspanak.tt9.ui.Vibration;
-import io.github.sspanak.tt9.util.Logger;
 import io.github.sspanak.tt9.util.Text;
 import io.github.sspanak.tt9.util.chars.Characters;
 
-public class SoftKey extends com.google.android.material.button.MaterialButton implements View.OnTouchListener, View.OnLongClickListener {
-	private final String LOG_TAG = getClass().getSimpleName();
-
-	protected TraditionalT9 tt9;
-	protected Vibration vibration;
-
-	private boolean hold = false;
-	private boolean repeat = false;
-	private long lastLongClickTime = 0;
-	private final Handler repeatHandler = new Handler(Looper.getMainLooper());
-
-	private static int lastPressedKey = -1;
-	private boolean ignoreLastPressedKey = false;
-
-	private Drawable icon = null;
-	private Drawable holdIcon = null;
-	private RelativeLayout overlay = null;
+public class SoftKey extends BaseClickableKey {
+	protected RelativeLayout overlay = null;
 
 	private static float screenScaleX = 0;
 	private static float screenScaleY = 0;
 
 
-	public SoftKey(Context context) {
-		super(context);
-		setHapticFeedbackEnabled(false);
-		setOnTouchListener(this);
-		setOnLongClickListener(this);
-	}
-
-	public SoftKey(Context context, AttributeSet attrs) {
-		super(context, attrs);
-		setHapticFeedbackEnabled(false);
-		setOnTouchListener(this);
-		setOnLongClickListener(this);
-	}
-
-	public SoftKey(Context context, AttributeSet attrs, int defStyleAttr) {
-		super(context, attrs, defStyleAttr);
-		setHapticFeedbackEnabled(false);
-		setOnTouchListener(this);
-		setOnLongClickListener(this);
-	}
-
-
-	public void setTT9(TraditionalT9 tt9) {
-		this.tt9 = tt9;
-	}
-
-
-	protected boolean validateTT9Handler() {
-		if (tt9 == null) {
-			Logger.w(LOG_TAG, "Traditional T9 handler is not set. Ignoring key press.");
-			return false;
-		}
-
-		return true;
-	}
+	public SoftKey(Context context) { super(context); }
+	public SoftKey(Context context, AttributeSet attrs) { super(context, attrs); }
+	public SoftKey(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
 
 
+	/**
+	 * Returns a scale factor for the screen width, used to adjust the key size and text size. Mostly,
+	 * useful for tablets or larger devices, where the keys are too big but the text remains small.
+	 */
 	protected float getScreenScaleX() {
 		if (screenScaleX == 0) {
 			boolean isLandscape = DeviceInfo.isLandscapeOrientation(getContext());
@@ -100,6 +47,9 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 	}
 
 
+	/**
+	 * Same as getScreenScaleX(), but used for the key height.
+	 */
 	protected float getScreenScaleY() {
 		if (screenScaleY == 0) {
 			boolean isLandscape = DeviceInfo.isLandscapeOrientation(getContext());
@@ -124,107 +74,11 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 	}
 
 
-	@Override
-	public boolean onTouch(View view, MotionEvent event) {
-		super.onTouchEvent(event);
-
-		int action = (event.getAction() & MotionEvent.ACTION_MASK);
-
-		if (action == MotionEvent.ACTION_DOWN) {
-			return handlePress();
-		} else if (action == MotionEvent.ACTION_UP) {
-			if (!repeat || hold) {
-				hold = false;
-				repeat = false;
-				boolean result = handleRelease();
-				lastPressedKey = ignoreLastPressedKey ? -1 : getId();
-				return result;
-			}
-			repeat = false;
-		}
-		return false;
-	}
-
-
-	@Override
-	public boolean onLongClick(View view) {
-		// sometimes this gets called twice, so we debounce the call to the repeating function
-		final long now = System.currentTimeMillis();
-		if (now - lastLongClickTime < SettingsStore.SOFT_KEY_DOUBLE_CLICK_DELAY) {
-			return false;
-		}
-
-		hold = true;
-		lastLongClickTime = now;
-		repeatOnLongPress();
-		return true;
-	}
-
-
-	/**
-	 * repeatOnLongPress
-	 * Repeatedly calls "handleHold()" upon holding the respective SoftKey, to simulate physical keyboard behavior.
-	 */
-	private void repeatOnLongPress() {
-		if (hold) {
-			repeat = true;
-			handleHold();
-			lastPressedKey = ignoreLastPressedKey ? -1 : getId();
-			repeatHandler.removeCallbacks(this::repeatOnLongPress);
-			repeatHandler.postDelayed(this::repeatOnLongPress, SettingsStore.SOFT_KEY_REPEAT_DELAY);
-		}
-	}
-
-
-	/**
-	 * preventRepeat
-	 * Prevents "handleHold()" from being called repeatedly when the SoftKey is being held.
-	 */
-	protected void preventRepeat() {
-		hold = false;
-		repeatHandler.removeCallbacks(this::repeatOnLongPress);
-	}
-
-
-	protected static int getLastPressedKey() {
-		return lastPressedKey;
-	}
-
-
-	protected void ignoreLastPressedKey() {
-		ignoreLastPressedKey = true;
-	}
-
-
-	protected boolean handlePress() {
-		if (validateTT9Handler()) {
-			vibrate(Vibration.getPressVibration(this));
-		}
-
-		return false;
-	}
-
-
-	protected void handleHold() {}
-
-
-	protected boolean handleRelease() {
-		return false;
-	}
-
-
-	public boolean isHoldEnabled() {
-		return true;
-	}
-
-
 	/**
 	 * getTitle
 	 * Generates the name of the key, for example: "OK", "Backspace", "1", etc...
 	 */
-	protected String getTitle() {
-		return null;
-	}
+	protected String getTitle() { return null; }
 
 
 	/**
@@ -235,60 +89,6 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 	protected int getNoEmojiTitle() { return 0; }
 
 
-	protected int getCentralIcon() {
-		return -1;
-	}
-
-
-	protected int getHoldIcon() {
-		return -1;
-	}
-
-
-	protected void resetIconCache() {
-		icon = null;
-		holdIcon = null;
-	}
-
-
-	/**
-	 * Generates a String describing the "hold" function of the key. The String will be displayed
-	 * in the upper right corner.
-	 */
-	protected String getHoldText() {
-		return null;
-	}
-
-
-	/**
-	 * Generates a String describing for the swipe up function of the key
-	 */
-	protected String getTopText() {
-		return null;
-	}
-
-	/**
-	 * Generates a String describing for the swipe right function of the key
-	 */
-	protected String getRightText() {
-		return null;
-	}
-
-	/**
-	 * Generates a String describing for the swipe down function of the key
-	 */
-	protected String getBottomText() {
-		return null;
-	}
-
-	/**
-	 * Generates a String describing for the swipe left function of the key
-	 */
-	protected String getLeftText() {
-		return null;
-	}
-
-
 	/**
 	 * Returns a meaningful key title depending on the current emoji support.
 	 */
@@ -308,36 +108,8 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 
 
 	/**
-	 * A fail-safe method to get the central icon drawable.
-	 */
-	private Drawable getIconCompat() {
-		if (icon == null && getCentralIcon() > 0) {
-			icon = AppCompatResources.getDrawable(getContext(), getCentralIcon());
-		} else if (getCentralIcon() <= 0) {
-			icon = null;
-		}
-
-		return icon;
-	}
-
-
-	/**
-	 * A fail-safe method to get the hold icon drawable.
-	 */
-	private Drawable getHoldIconCompat() {
-		if (holdIcon == null && getHoldIcon() > 0) {
-			holdIcon = AppCompatResources.getDrawable(getContext(), getHoldIcon());
-		} else if (getHoldIcon() <= 0) {
-			holdIcon = null;
-		}
-
-		return holdIcon;
-	}
-
-
-	/**
-	 * Multiplier for the main text font size. Used for automatically adjusting the font size to fit
-	 * the key when changing the keyboard dimensions, and to look good on different screen sizes.
+	 * Returns a multiplier for scaling the central text size. Used to automatically fit the text
+	 * when changing the keyboard dimensions, and to make it look good on different screen sizes.
 	 */
 	protected float getTitleScale() {
 		float keyboardSizeScale = Math.max(0.7f, Math.min(getTT9Width(), getTT9Height()));
@@ -347,15 +119,13 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 
 
 	/**
-	 * Same as getTitleScale(), but for keys that have icons instead of text.
+	 * Generates a String describing the "hold" function of the key. The String will be displayed
+	 * in the upper right corner.
 	 */
-	protected float getCentralIconScale() {
-		float keyboardSizeScale = Math.max(0.7f, Math.min(getTT9Width(), getTT9Height()));
-		keyboardSizeScale = Math.min(1.15f, keyboardSizeScale);
-		return keyboardSizeScale * Math.min(getScreenScaleX(), getScreenScaleY());
+	protected String getHoldText() {
+		return null;
 	}
 
-
 	/**
 	 * Similar to getTitleScale(), adjusts the font size of the hold text or icon
 	 */
@@ -365,7 +135,7 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 	}
 
 
-	private void getOverlayWrapper() {
+	protected void getOverlayWrapper() {
 		if (overlay == null) {
 			ViewParent parent = getParent();
 			if (parent instanceof RelativeLayout) {
@@ -375,32 +145,6 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 	}
 
 
-	/**
-	 * render
-	 * Sets the key labels and icons using "getTitle()", "getCenterIcon()", "getHoldText()",
-	 * "getTopText()", "getRightText()", "getHoldIcon()", etc. Also takes care of styling the labels
-	 * depending on "isEnabled()" and "isHoldEnabled()".
-	 */
-	public void render() {
-		boolean isKeyEnabled = isEnabled();
-		boolean isHoldEnabled = isHoldEnabled();
-
-		renderTitle(isKeyEnabled);
-
-		getOverlayWrapper();
-
-		renderOverlayDrawable("overlay_icon", getIconCompat(), getCentralIconScale(), isKeyEnabled);
-
-		renderOverlayText("overlay_hold_text", getHoldText(), getHoldElementScale(), isKeyEnabled && isHoldEnabled);
-		renderOverlayDrawable("overlay_hold_icon", getHoldIconCompat(), getHoldElementScale(), isKeyEnabled && isHoldEnabled);
-
-		renderOverlayText("overlay_top_text", getTopText(), getHoldElementScale(), isKeyEnabled);
-		renderOverlayText("overlay_right_text", getRightText(), getHoldElementScale(), isKeyEnabled);
-		renderOverlayText("overlay_bottom_text", getBottomText(), getHoldElementScale(), isKeyEnabled);
-		renderOverlayText("overlay_left_text", getLeftText(), getHoldElementScale(), isKeyEnabled);
-	}
-
-
 	/**
 	 * Renders the central text of the key and styles it based on "isEnabled".
 	 */
@@ -428,7 +172,7 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 	 * Renders text in the given overlay element, with optional scaling and alpha. The overlay
 	 * text elements are either the "hold" text or the "swipe" text.
 	 */
-	private void renderOverlayText(String elementTag, @Nullable String text, float scale, boolean isEnabled) {
+	protected void renderOverlayText(String elementTag, @Nullable String text, float scale, boolean isEnabled) {
 		if (overlay == null) {
 			return;
 		}
@@ -452,37 +196,14 @@ public class SoftKey extends com.google.android.material.button.MaterialButton i
 
 
 	/**
-	 * Renders one of the key icons. It could be either the central icon, in the place of the main title,
-	 * or a hold icon, displayed in the upper right corner.
+	 * render
+	 * Sets the key labels and icons using. Potentially, it can also adjust padding and margins and
+	 * other visual properties of the key.
 	 */
-	private void renderOverlayDrawable(String elementTag, @Nullable Drawable drawable, float scale, boolean isEnabled) {
-		if (overlay == null) {
-			return;
-		}
-
-		View element = ((RelativeLayout) getParent()).findViewWithTag(elementTag);
-		if (!(element instanceof ImageView el)) {
-			return;
-		}
-
-		el.setImageDrawable(drawable);
-		if (!isEnabled) {
-			el.setColorFilter(Color.GRAY);
-		} else {
-			el.clearColorFilter();
-		}
-
-		if (drawable != null) {
-			el.setScaleX(scale);
-			el.setScaleY(scale);
-		}
-	}
-
-
-	protected void vibrate(int vibrationType) {
-		if (tt9 != null) {
-			vibration = vibration == null ? new Vibration(tt9.getSettings(), this) : vibration;
-			vibration.vibrate(vibrationType);
-		}
+	public void render() {
+		boolean isKeyEnabled = isEnabled();
+		renderTitle(isKeyEnabled);
+		getOverlayWrapper();
+		renderOverlayText("overlay_hold_text", getHoldText(), getHoldElementScale(), isKeyEnabled && isHoldEnabled());
 	}
 }

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

@@ -5,7 +5,7 @@ import android.util.AttributeSet;
 
 import io.github.sspanak.tt9.R;
 
-public class SoftKeyAddWord extends SoftKey {
+public class SoftKeyAddWord extends BaseSoftKeyWithIcons {
 	public SoftKeyAddWord(Context context) { super(context); }
 	public SoftKeyAddWord(Context context, AttributeSet attrs) { super(context, attrs); }
 	public SoftKeyAddWord(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }

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

@@ -10,7 +10,7 @@ import io.github.sspanak.tt9.languages.LanguageKind;
 import io.github.sspanak.tt9.preferences.settings.SettingsStore;
 import io.github.sspanak.tt9.ui.Vibration;
 
-public class SoftKeyBackspace extends SwipeableKey {
+public class SoftKeyBackspace extends BaseSwipeableKey {
 	private int repeat = 0;
 
 	private boolean isActionPerformed = false;

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

@@ -7,7 +7,7 @@ import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.languages.LanguageKind;
 import io.github.sspanak.tt9.ui.Vibration;
 
-public class SoftKeyFilter extends SoftKey {
+public class SoftKeyFilter extends BaseSoftKeyWithIcons {
 	public SoftKeyFilter(Context context) { super(context); }
 	public SoftKeyFilter(Context context, AttributeSet attrs) { super(context, attrs); }
 	public SoftKeyFilter(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyLF4.java

@@ -7,7 +7,7 @@ import android.view.Gravity;
 import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.ui.Vibration;
 
-public class SoftKeyLF4 extends SwipeableKey {
+public class SoftKeyLF4 extends BaseSwipeableKey {
 	public SoftKeyLF4(Context context) { super(context); }
 	public SoftKeyLF4(Context context, AttributeSet attrs) { super(context, attrs); }
 	public SoftKeyLF4(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }

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

@@ -10,7 +10,7 @@ import io.github.sspanak.tt9.ime.helpers.Key;
 import io.github.sspanak.tt9.languages.LanguageKind;
 import io.github.sspanak.tt9.ui.Vibration;
 
-public class SoftKeyNumber extends SoftKey {
+public class SoftKeyNumber extends BaseSoftKeyWithIcons {
 	private final static SparseArray<Integer> NUMBERS = new SparseArray<>() {{
 		put(R.id.soft_key_0, 0);
 		put(R.id.soft_key_1, 1);

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyRF3.java

@@ -5,7 +5,7 @@ import android.util.AttributeSet;
 
 import io.github.sspanak.tt9.R;
 
-public class SoftKeyRF3 extends SoftKey {
+public class SoftKeyRF3 extends BaseSoftKeyWithIcons {
 	public SoftKeyRF3(Context context) { super(context); }
 	public SoftKeyRF3(Context context, AttributeSet attrs) { super(context, attrs); }
 	public SoftKeyRF3(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }

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

@@ -6,7 +6,7 @@ import android.util.AttributeSet;
 import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.ui.main.ResizableMainView;
 
-public class SoftKeySettings extends SwipeableKey {
+public class SoftKeySettings extends BaseSwipeableKey {
 	private ResizableMainView mainView;
 
 	public SoftKeySettings(Context context) {

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

@@ -5,7 +5,7 @@ import android.util.AttributeSet;
 
 import io.github.sspanak.tt9.R;
 
-public class SoftKeyShift extends SoftKey {
+public class SoftKeyShift extends BaseSoftKeyWithIcons {
 	public SoftKeyShift(Context context) {
 		super(context);
 	}