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package it.niedermann.nextcloud.deck.ui.theme;
import android.annotation.SuppressLint;
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Switch;
import androidx.annotation.ColorInt;
import androidx.annotation.Nullable;
import androidx.preference.PreferenceViewHolder;
import androidx.preference.SwitchPreference;
public class ThemedSwitchPreference extends SwitchPreference implements Themed {
@Nullable
private ThemeUtils utils = null;
@SuppressLint("UseSwitchCompatOrMaterialCode")
@Nullable
private Switch switchView;
public ThemedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
public ThemedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public ThemedSwitchPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ThemedSwitchPreference(Context context) {
super(context);
}
@Override
public void onBindViewHolder(PreferenceViewHolder holder) {
super.onBindViewHolder(holder);
if (holder.itemView instanceof ViewGroup) {
switchView = findSwitchWidget(holder.itemView);
applyTheme();
}
}
@Override
public void applyTheme(@ColorInt int color) {
this.utils = ThemeUtils.of(color, getContext());
// onBindViewHolder is called after applyTheme, therefore we have to store the given values and apply them later.
applyTheme();
}
private void applyTheme() {
if (utils != null && switchView != null) {
utils.platform.colorSwitch(switchView);
}
}
/**
* Recursively go through view tree until we find an android.widget.Switch
*
* @param view Root view to start searching
* @return A Switch class or null
* @see <a href="https://gist.github.com/marchold/45e22839eb94aa14dfb5">Source</a>
*/
private Switch findSwitchWidget(View view) {
if (view instanceof Switch) {
return (Switch) view;
}
if (view instanceof ViewGroup) {
ViewGroup viewGroup = (ViewGroup) view;
for (int i = 0; i < viewGroup.getChildCount(); i++) {
final var child = viewGroup.getChildAt(i);
if (child instanceof ViewGroup) {
@SuppressLint("UseSwitchCompatOrMaterialCode") final var result = findSwitchWidget(child);
if (result != null) return result;
}
if (child instanceof Switch) {
return (Switch) child;
}
}
}
return null;
}
}
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