Merge "Add Grayscale conditional"

src/com/android/settings/homepage/contextualcards/conditional/ConditionManager.java

@@ -162,6 +162,7 @@ public class ConditionManager {
         mCardControllers.add(new RingerVibrateConditionController(mAppContext, this /* manager */));
         mCardControllers.add(new RingerMutedConditionController(mAppContext, this /* manager */));
         mCardControllers.add(new WorkModeConditionController(mAppContext, this /* manager */));
+        mCardControllers.add(new GrayscaleConditionController(mAppContext, this /* manager */));
     }
 
     /**

src/com/android/settings/homepage/contextualcards/conditional/GrayscaleConditionController.java

@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.homepage.contextualcards.conditional;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.content.Intent;
+import android.hardware.display.ColorDisplayManager;
+import android.util.Log;
+
+import com.android.settings.R;
+import com.android.settings.homepage.contextualcards.ContextualCard;
+
+import java.net.URISyntaxException;
+import java.util.Objects;
+
+public class GrayscaleConditionController implements ConditionalCardController {
+    static final int ID = Objects.hash("GrayscaleConditionController");
+
+    private static final String TAG = "GrayscaleCondition";
+
+    private final Context mAppContext;
+    private final ConditionManager mConditionManager;
+    private final ColorDisplayManager mColorDisplayManager;
+
+    private Intent mIntent;
+
+    public GrayscaleConditionController(Context appContext, ConditionManager conditionManager) {
+        mAppContext = appContext;
+        mConditionManager = conditionManager;
+        mColorDisplayManager = mAppContext.getSystemService(ColorDisplayManager.class);
+    }
+
+    @Override
+    public long getId() {
+        return ID;
+    }
+
+    @Override
+    public boolean isDisplayable() {
+        try {
+            mIntent = Intent.parseUri(
+                    mAppContext.getString(R.string.config_grayscale_settings_intent),
+                    Intent.URI_INTENT_SCHEME);
+        } catch (URISyntaxException e) {
+            Log.w(TAG, "Failure parsing grayscale settings intent, skipping", e);
+            return false;
+        }
+        return mColorDisplayManager.isSaturationActivated();
+    }
+
+    @Override
+    public void onPrimaryClick(Context context) {
+        mAppContext.startActivity(mIntent);
+    }
+
+    @Override
+    public void onActionClick() {
+        // Turn off grayscale
+        mColorDisplayManager.setSaturationLevel(100 /* staturationLevel */);
+        mConditionManager.onConditionChanged();
+    }
+
+    @Override
+    public ContextualCard buildContextualCard() {
+        return new ConditionalContextualCard.Builder()
+                .setConditionId(ID)
+                .setMetricsConstant(SettingsEnums.SETTINGS_CONDITION_GRAYSCALE_MODE)
+                .setActionText(mAppContext.getText(R.string.condition_turn_off))
+                .setName(mAppContext.getPackageName() + "/" + mAppContext.getText(
+                        R.string.condition_grayscale_title))
+                .setTitleText(mAppContext.getText(R.string.condition_grayscale_title).toString())
+                .setSummaryText(
+                        mAppContext.getText(R.string.condition_grayscale_summary).toString())
+                .setIconDrawable(mAppContext.getDrawable(R.drawable.ic_gray_scale_24dp))
+                .setViewType(ConditionContextualCardRenderer.VIEW_TYPE_HALF_WIDTH)
+                .build();
+    }
+
+    @Override
+    public void startMonitoringStateChange() {
+
+    }
+
+    @Override
+    public void stopMonitoringStateChange() {
+
+    }
+}