Transforming all texts of decorated media custom views (87c3153d) · Commits · e / os / android_frameworks_base

core/java/android/app/Notification.java

+3 −42

Original line number	Diff line number	Diff line
		@@ -60,7 +60,6 @@ import android.text.SpannableStringBuilder;
		import android.text.Spanned;
		import android.text.TextUtils;
		import android.text.style.AbsoluteSizeSpan;
		import android.text.style.BackgroundColorSpan;
		import android.text.style.CharacterStyle;
		import android.text.style.ForegroundColorSpan;
		import android.text.style.RelativeSizeSpan;
		@@ -3923,7 +3922,7 @@ public class Notification implements Parcelable

		private CharSequence processTextSpans(CharSequence text) {
		if (hasForegroundColor()) {
		return clearColorSpans(text);
		return NotificationColorUtil.clearColorSpans(text);
		}
		return text;
		}
		@@ -4683,7 +4682,7 @@ public class Notification implements Parcelable
		CharSequence title = action.title;
		ColorStateList[] outResultColor = null;
		if (isLegacy()) {
		title = clearColorSpans(title);
		title = NotificationColorUtil.clearColorSpans(title);
		} else {
		outResultColor = new ColorStateList[1];
		title = ensureColorSpanContrast(title, bgColor, outResultColor);
		@@ -4710,45 +4709,6 @@ public class Notification implements Parcelable
		return button;
		}

		/**
		* Clears all color spans of a text
		* @param charSequence the input text
		* @return the same text but without color spans
		*/
		private CharSequence clearColorSpans(CharSequence charSequence) {
		if (charSequence instanceof Spanned) {
		Spanned ss = (Spanned) charSequence;
		Object[] spans = ss.getSpans(0, ss.length(), Object.class);
		SpannableStringBuilder builder = new SpannableStringBuilder(ss.toString());
		for (Object span : spans) {
		Object resultSpan = span;
		if (resultSpan instanceof CharacterStyle) {
		resultSpan = ((CharacterStyle) span).getUnderlying();
		}
		if (resultSpan instanceof TextAppearanceSpan) {
		TextAppearanceSpan originalSpan = (TextAppearanceSpan) resultSpan;
		if (originalSpan.getTextColor() != null) {
		resultSpan = new TextAppearanceSpan(
		originalSpan.getFamily(),
		originalSpan.getTextStyle(),
		originalSpan.getTextSize(),
		null,
		originalSpan.getLinkTextColor());
		}
		} else if (resultSpan instanceof ForegroundColorSpan
		\|\| (resultSpan instanceof BackgroundColorSpan)) {
		continue;
		} else {
		resultSpan = span;
		}
		builder.setSpan(resultSpan, ss.getSpanStart(span), ss.getSpanEnd(span),
		ss.getSpanFlags(span));
		}
		return builder;
		}
		return charSequence;
		}

		/**
		* Ensures contrast on color spans against a background color. also returns the color of the
		* text if a span was found that spans over the whole text.
		@@ -7075,6 +7035,7 @@ public class Notification implements Parcelable
		// Need to clone customContent before adding, because otherwise it can no longer be
		// parceled independently of remoteViews.
		customContent = customContent.clone();
		customContent.overrideTextColors(mBuilder.getPrimaryTextColor());
		remoteViews.removeAllViews(id);
		remoteViews.addView(id, customContent);
		remoteViews.setReapplyDisallowed();

core/java/android/widget/RemoteViews.java

+63 −0

Original line number	Diff line number	Diff line
		@@ -64,6 +64,7 @@ import android.view.ViewStub;
		import android.widget.AdapterView.OnItemClickListener;

		import com.android.internal.R;
		import com.android.internal.util.NotificationColorUtil;
		import com.android.internal.util.Preconditions;

		import libcore.util.Objects;
		@@ -75,6 +76,7 @@ import java.lang.annotation.Target;
		import java.lang.reflect.Method;
		import java.util.ArrayList;
		import java.util.HashMap;
		import java.util.Stack;
		import java.util.concurrent.Executor;

		/**
		@@ -118,6 +120,7 @@ public class RemoteViews implements Parcelable, Filter {
		private static final int TEXT_VIEW_DRAWABLE_COLOR_FILTER_ACTION_TAG = 17;
		private static final int SET_REMOTE_INPUTS_ACTION_TAG = 18;
		private static final int LAYOUT_PARAM_ACTION_TAG = 19;
		private static final int OVERRIDE_TEXT_COLORS_TAG = 20;

		/**
		* Application that hosts the remote views.
		@@ -220,6 +223,17 @@ public class RemoteViews implements Parcelable, Filter {
		}
		}

		/**
		* Override all text colors in this layout and replace them by the given text color.
		*
		* @param textColor The color to use.
		*
		* @hide
		*/
		public void overrideTextColors(int textColor) {
		addAction(new OverrideTextColorsAction(textColor));
		}

		/**
		* Set that it is disallowed to reapply another remoteview with the same layout as this view.
		* This should be done if an action is destroying the view tree of the base layout.
		@@ -2248,6 +2262,52 @@ public class RemoteViews implements Parcelable, Filter {
		final Parcelable[] remoteInputs;
		}

		/**
		* Helper action to override all textViewColors
		*/
		private class OverrideTextColorsAction extends Action {

		private final int textColor;

		public OverrideTextColorsAction(int textColor) {
		this.textColor = textColor;
		}

		public OverrideTextColorsAction(Parcel parcel) {
		textColor = parcel.readInt();
		}

		public void writeToParcel(Parcel dest, int flags) {
		dest.writeInt(OVERRIDE_TEXT_COLORS_TAG);
		dest.writeInt(textColor);
		}

		@Override
		public void apply(View root, ViewGroup rootParent, OnClickHandler handler) {
		// Let's traverse the viewtree and override all textColors!
		Stack<View> viewsToProcess = new Stack<>();
		viewsToProcess.add(root);
		while (!viewsToProcess.isEmpty()) {
		View v = viewsToProcess.pop();
		if (v instanceof TextView) {
		TextView textView = (TextView) v;
		textView.setText(NotificationColorUtil.clearColorSpans(textView.getText()));
		textView.setTextColor(textColor);
		}
		if (v instanceof ViewGroup) {
		ViewGroup viewGroup = (ViewGroup) v;
		for (int i = 0; i < viewGroup.getChildCount(); i++) {
		viewsToProcess.push(viewGroup.getChildAt(i));
		}
		}
		}
		}

		public String getActionName() {
		return "OverrideTextColorsAction";
		}
		}

		/**
		* Simple class used to keep track of memory usage in a RemoteViews.
		*
		@@ -2443,6 +2503,9 @@ public class RemoteViews implements Parcelable, Filter {
		case LAYOUT_PARAM_ACTION_TAG:
		mActions.add(new LayoutParamAction(parcel));
		break;
		case OVERRIDE_TEXT_COLORS_TAG:
		mActions.add(new OverrideTextColorsAction(parcel));
		break;
		default:
		throw new ActionException("Tag " + tag + " not found");
		}

core/java/com/android/internal/util/NotificationColorUtil.java

+40 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@ import android.graphics.drawable.Icon;
		import android.graphics.drawable.VectorDrawable;
		import android.text.SpannableStringBuilder;
		import android.text.Spanned;
		import android.text.style.BackgroundColorSpan;
		import android.text.style.CharacterStyle;
		import android.text.style.ForegroundColorSpan;
		import android.text.style.TextAppearanceSpan;
		@@ -240,6 +241,45 @@ public class NotificationColorUtil {
		return span;
		}

		/**
		* Clears all color spans of a text
		* @param charSequence the input text
		* @return the same text but without color spans
		*/
		public static CharSequence clearColorSpans(CharSequence charSequence) {
		if (charSequence instanceof Spanned) {
		Spanned ss = (Spanned) charSequence;
		Object[] spans = ss.getSpans(0, ss.length(), Object.class);
		SpannableStringBuilder builder = new SpannableStringBuilder(ss.toString());
		for (Object span : spans) {
		Object resultSpan = span;
		if (resultSpan instanceof CharacterStyle) {
		resultSpan = ((CharacterStyle) span).getUnderlying();
		}
		if (resultSpan instanceof TextAppearanceSpan) {
		TextAppearanceSpan originalSpan = (TextAppearanceSpan) resultSpan;
		if (originalSpan.getTextColor() != null) {
		resultSpan = new TextAppearanceSpan(
		originalSpan.getFamily(),
		originalSpan.getTextStyle(),
		originalSpan.getTextSize(),
		null,
		originalSpan.getLinkTextColor());
		}
		} else if (resultSpan instanceof ForegroundColorSpan
		\|\| (resultSpan instanceof BackgroundColorSpan)) {
		continue;
		} else {
		resultSpan = span;
		}
		builder.setSpan(resultSpan, ss.getSpanStart(span), ss.getSpanEnd(span),
		ss.getSpanFlags(span));
		}
		return builder;
		}
		return charSequence;
		}

		private int processColor(int color) {
		return Color.argb(Color.alpha(color),
		255 - Color.red(color),