Add a background scrim to launcher for text protection.
This is a temporary approach to dim the wallpaper. Flip on ENABLE_WALLPAPER_SCRIM to enable the scrim.
In the long term we'll dim the wallpaper layer directly.
Test: Manual
Bug: 185890335
Change-Id: Ia88597bbcba6ae1536015d1b2a35260cab4a4453
diff --git a/res/values/colors.xml b/res/values/colors.xml
index 83d2deb..56a0e6b 100644
--- a/res/values/colors.xml
+++ b/res/values/colors.xml
@@ -58,5 +58,6 @@
<color name="text_color_tertiary_dark">#CCFFFFFF</color>
<color name="wallpaper_popup_scrim">?android:attr/colorAccent</color>
+ <color name="wallpaper_scrim_color">#0D878787</color>
</resources>
diff --git a/res/xml/dynamic_resources.xml b/res/xml/dynamic_resources.xml
index f5d2628..3a3e239 100644
--- a/res/xml/dynamic_resources.xml
+++ b/res/xml/dynamic_resources.xml
@@ -4,6 +4,6 @@
<entry id="@color/delete_target_hover_tint" />
<entry id="@color/delete_target_hover_tint" />
<entry id="@color/delete_target_hover_tint" />
+ <entry id="@color/wallpaper_scrim_color" />
-
-</DynamicResources>
\ No newline at end of file
+</DynamicResources>
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 3b88a0b..ba5101b 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -240,6 +240,10 @@
public static final BooleanFlag PROTOTYPE_APP_CLOSE = getDebugFlag(
"PROTOTYPE_APP_CLOSE", false, "Enables new app close");
+ public static final BooleanFlag ENABLE_WALLPAPER_SCRIM = getDebugFlag(
+ "ENABLE_WALLPAPER_SCRIM", false,
+ "Enables scrim over wallpaper for text protection.");
+
public static void initialize(Context context) {
synchronized (sDebugFlags) {
for (DebugFlag flag : sDebugFlags) {
diff --git a/src/com/android/launcher3/graphics/SysUiScrim.java b/src/com/android/launcher3/graphics/SysUiScrim.java
index c09dac8..f0766c5 100644
--- a/src/com/android/launcher3/graphics/SysUiScrim.java
+++ b/src/com/android/launcher3/graphics/SysUiScrim.java
@@ -45,7 +45,10 @@
import com.android.launcher3.R;
import com.android.launcher3.ResourceUtils;
import com.android.launcher3.Utilities;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.util.DynamicResource;
import com.android.launcher3.util.Themes;
+import com.android.systemui.plugins.ResourceProvider;
/**
* View scrim which draws behind hotseat and workspace
@@ -101,8 +104,10 @@
private static final int ALPHA_MASK_BITMAP_DP = 200;
private static final int ALPHA_MASK_WIDTH_DP = 2;
- private boolean mDrawTopScrim, mDrawBottomScrim;
+ private boolean mDrawTopScrim, mDrawBottomScrim, mDrawWallpaperScrim;
+ private final RectF mWallpaperScrimRect = new RectF();
+ private final Paint mWallpaperScrimPaint = new Paint();
private final RectF mFinalMaskRect = new RectF();
private final Paint mBottomMaskPaint = new Paint(Paint.FILTER_BITMAP_FLAG);
private final Bitmap mBottomMask;
@@ -117,6 +122,7 @@
private boolean mAnimateScrimOnNextDraw = false;
private float mSysUiAnimMultiplier = 1;
+ private int mWallpaperScrimMaxAlpha;
public SysUiScrim(View view) {
mRoot = view;
@@ -127,6 +133,14 @@
mBottomMask = mTopScrim == null ? null : createDitheredAlphaMask();
mHideSysUiScrim = mTopScrim == null;
+ mDrawWallpaperScrim = FeatureFlags.ENABLE_WALLPAPER_SCRIM.get()
+ && !Themes.getAttrBoolean(view.getContext(), R.attr.isMainColorDark)
+ && !Themes.getAttrBoolean(view.getContext(), R.attr.isWorkspaceDarkText);
+ ResourceProvider rp = DynamicResource.provider(view.getContext());
+ int wallpaperScrimColor = rp.getColor(R.color.wallpaper_scrim_color);
+ mWallpaperScrimMaxAlpha = Color.alpha(wallpaperScrimColor);
+ mWallpaperScrimPaint.setColor(wallpaperScrimColor);
+
view.addOnAttachStateChangeListener(this);
}
@@ -151,6 +165,9 @@
mAnimateScrimOnNextDraw = false;
}
+ if (mDrawWallpaperScrim) {
+ canvas.drawRect(mWallpaperScrimRect, mWallpaperScrimPaint);
+ }
if (mDrawTopScrim) {
mTopScrim.draw(canvas);
}
@@ -214,6 +231,7 @@
mTopScrim.setBounds(0, 0, w, h);
mFinalMaskRect.set(0, h - mMaskHeight, w, h);
}
+ mWallpaperScrimRect.set(0, 0, w, h);
}
private void setSysUiProgress(float progress) {
@@ -236,6 +254,7 @@
if (mTopScrim != null) {
mTopScrim.setAlpha(Math.round(255 * factor));
}
+ mWallpaperScrimPaint.setAlpha(Math.round(mWallpaperScrimMaxAlpha * factor));
}
private Bitmap createDitheredAlphaMask() {