Merge "Theme updates for dark text:" into ub-launcher3-edmonton

5 files changed, 38 insertions, 21 deletions

diff --git a/quickstep/src/com/android/quickstep/views/ShelfScrimView.java b/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
index 1ea112da0..c780b6234 100644
--- a/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
+++ b/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
@@ -45,10 +45,6 @@ import com.android.launcher3.views.ScrimView;
  */
 public class ShelfScrimView extends ScrimView {
 
-    private static final int THRESHOLD_ALPHA_DARK = 102;
-    private static final int THRESHOLD_ALPHA_LIGHT = 46;
-    private static final int THRESHOLD_ALPHA_SUPER_LIGHT = 128;
-
     // In transposed layout, we simply draw a flat color.
     private boolean mDrawingFlatColor;
 
@@ -77,13 +73,7 @@ public class ShelfScrimView extends ScrimView {
         mMaxScrimAlpha = OVERVIEW.getWorkspaceScrimAlpha(mLauncher);
 
         mEndAlpha = Color.alpha(mEndScrim);
-        if (Themes.getAttrBoolean(mLauncher, R.attr.isMainColorDark)) {
-            mThresholdAlpha = THRESHOLD_ALPHA_DARK;
-        } else if (Themes.getAttrBoolean(mLauncher, R.attr.isWorkspaceDarkText)) {
-            mThresholdAlpha = THRESHOLD_ALPHA_SUPER_LIGHT;
-        } else {
-            mThresholdAlpha = THRESHOLD_ALPHA_LIGHT;
-        }
+        mThresholdAlpha = Themes.getAttrInteger(context, R.attr.allAppsInterimScrimAlpha);
         mRadius = mLauncher.getResources().getDimension(R.dimen.shelf_surface_radius);
         mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
 
diff --git a/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java b/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
index 128a19e06..d9dfd1815 100644
--- a/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
@@ -29,6 +29,7 @@ import android.graphics.Matrix;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.Shader;
+import android.support.v4.graphics.ColorUtils;
 import android.util.AttributeSet;
 import android.util.FloatProperty;
 import android.util.Property;
@@ -37,8 +38,10 @@ import android.view.View;
 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.SystemUiController;
+import com.android.launcher3.util.Themes;
 import com.android.quickstep.TaskOverlayFactory;
 import com.android.quickstep.TaskOverlayFactory.TaskOverlay;
 import com.android.systemui.shared.recents.model.Task;
@@ -50,6 +53,7 @@ import com.android.systemui.shared.recents.model.ThumbnailData;
 public class TaskThumbnailView extends View {
 
     private static final LightingColorFilter[] sDimFilterCache = new LightingColorFilter[256];
+    private static final LightingColorFilter[] sHighlightFilterCache = new LightingColorFilter[256];
 
     public static final Property<TaskThumbnailView, Float> DIM_ALPHA_MULTIPLIER =
             new FloatProperty<TaskThumbnailView>("dimAlphaMultiplier") {
@@ -68,6 +72,7 @@ public class TaskThumbnailView extends View {
 
     private final BaseActivity mActivity;
     private final TaskOverlay mOverlay;
+    private final boolean mIsDarkTextTheme;
     private final Paint mPaint = new Paint();
     private final Paint mBackgroundPaint = new Paint();
 
@@ -97,6 +102,7 @@ public class TaskThumbnailView extends View {
         mPaint.setFilterBitmap(true);
         mBackgroundPaint.setColor(Color.WHITE);
         mActivity = BaseActivity.fromContext(context);
+        mIsDarkTextTheme = Themes.getAttrBoolean(mActivity, R.attr.isWorkspaceDarkText);
     }
 
     public void bind() {
@@ -198,7 +204,7 @@ public class TaskThumbnailView extends View {
     private void updateThumbnailPaintFilter() {
         int mul = (int) ((1 - mDimAlpha * mDimAlphaMultiplier) * 255);
         if (mBitmapShader != null) {
-            LightingColorFilter filter = getLightingColorFilter(mul);
+            LightingColorFilter filter = getDimmingColorFilter(mul, mIsDarkTextTheme);
             mPaint.setColorFilter(filter);
             mBackgroundPaint.setColorFilter(filter);
         } else {
@@ -287,16 +293,25 @@ public class TaskThumbnailView extends View {
         updateThumbnailMatrix();
     }
 
-    private static LightingColorFilter getLightingColorFilter(int dimColor) {
-        if (dimColor < 0) {
-            dimColor = 0;
-        } else if (dimColor > 255) {
-            dimColor = 255;
+    private static LightingColorFilter getDimmingColorFilter(int intensity, boolean shouldLighten) {
+        intensity = Utilities.boundToRange(intensity, 0, 255);
+        if (intensity == 255) {
+            return null;
         }
-        if (sDimFilterCache[dimColor] == null) {
-            sDimFilterCache[dimColor] =
-                    new LightingColorFilter(Color.argb(255, dimColor, dimColor, dimColor), 0);
+        if (shouldLighten) {
+            if (sHighlightFilterCache[intensity] == null) {
+                int colorAdd = 255 - intensity;
+                sHighlightFilterCache[intensity] = new LightingColorFilter(
+                        Color.argb(255, intensity, intensity, intensity),
+                        Color.argb(255, colorAdd, colorAdd, colorAdd));
+            }
+            return sHighlightFilterCache[intensity];
+        } else {
+            if (sDimFilterCache[intensity] == null) {
+                sDimFilterCache[intensity] = new LightingColorFilter(
+                        Color.argb(255, intensity, intensity, intensity), 0);
+            }
+            return sDimFilterCache[intensity];
         }
-        return sDimFilterCache[dimColor];
     }
 }
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 64ca05e3c..30091a5f7 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -20,6 +20,7 @@
 
     <!-- Attributes used for launcher theme -->
     <attr name="allAppsScrimColor" format="color" />
+    <attr name="allAppsInterimScrimAlpha" format="integer" />
     <attr name="allAppsNavBarScrimColor" format="color" />
     <attr name="popupColorPrimary" format="color" />
     <attr name="popupColorSecondary" format="color" />
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 2b760f349..31cbaa11a 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -29,6 +29,7 @@
 
     <style name="BaseLauncherThemeWithCustomAttrs" parent="@style/BaseLauncherTheme">
         <item name="allAppsScrimColor">#EAFFFFFF</item>
+        <item name="allAppsInterimScrimAlpha">46</item>
         <item name="allAppsNavBarScrimColor">#66FFFFFF</item>
         <item name="popupColorPrimary">#FFF</item>
         <item name="popupColorSecondary">#F5F5F5</item> <!-- Gray 100 -->
@@ -47,6 +48,7 @@
 
     <style name="LauncherTheme.DarkText" parent="@style/LauncherTheme">
         <item name="workspaceTextColor">#FF212121</item>
+        <item name="allAppsInterimScrimAlpha">128</item>
         <item name="workspaceShadowColor">@android:color/transparent</item>
         <item name="workspaceAmbientShadowColor">@android:color/transparent</item>
         <item name="workspaceKeyShadowColor">@android:color/transparent</item>
@@ -62,6 +64,7 @@
         <item name="android:colorControlHighlight">#A0FFFFFF</item>
         <item name="android:colorPrimary">#FF212121</item>
         <item name="allAppsScrimColor">#EA212121</item>
+        <item name="allAppsInterimScrimAlpha">102</item>
         <item name="allAppsNavBarScrimColor">#80000000</item>
         <item name="popupColorPrimary">?android:attr/colorPrimary</item>
         <item name="popupColorSecondary">#424242</item> <!-- Gray 800 -->
@@ -71,6 +74,7 @@
     </style>
 
     <style name="LauncherThemeDark.DarKText" parent="@style/LauncherThemeDark">
+        <item name="allAppsInterimScrimAlpha">25</item>
         <item name="workspaceTextColor">#FF212121</item>
         <item name="workspaceShadowColor">@android:color/transparent</item>
         <item name="workspaceAmbientShadowColor">@android:color/transparent</item>
diff --git a/src/com/android/launcher3/util/Themes.java b/src/com/android/launcher3/util/Themes.java
index d22509344..5f965a341 100644
--- a/src/com/android/launcher3/util/Themes.java
+++ b/src/com/android/launcher3/util/Themes.java
@@ -52,6 +52,13 @@ public class Themes {
         return value;
     }
 
+    public static int getAttrInteger(Context context, int attr) {
+        TypedArray ta = context.obtainStyledAttributes(new int[]{attr});
+        int value = ta.getInteger(0, 0);
+        ta.recycle();
+        return value;
+    }
+
     /**
      * Returns the alpha corresponding to the theme attribute {@param attr}, in the range [0, 255].
      */