Add flags for quick viewer to indicate capabilities of a document.

Replace the QUICK_VIEW_ADVANCED extra.

Also restrict quick viewers not to send file content out of the device.

Test: It builds.
Bug: 36484539
Bug: 36755024
Change-Id: I921230eac6e497a615624202c741ef03432b2690
diff --git a/api/current.txt b/api/current.txt
index 6234168..2d81b2d 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -9464,7 +9464,7 @@
     field public static final java.lang.String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
     field public static final java.lang.String EXTRA_PROCESS_TEXT = "android.intent.extra.PROCESS_TEXT";
     field public static final java.lang.String EXTRA_PROCESS_TEXT_READONLY = "android.intent.extra.PROCESS_TEXT_READONLY";
-    field public static final java.lang.String EXTRA_QUICK_VIEW_ADVANCED = "android.intent.extra.QUICK_VIEW_ADVANCED";
+    field public static final java.lang.String EXTRA_QUICK_VIEW_FEATURES = "android.intent.extra.QUICK_VIEW_FEATURES";
     field public static final java.lang.String EXTRA_QUIET_MODE = "android.intent.extra.QUIET_MODE";
     field public static final java.lang.String EXTRA_REFERRER = "android.intent.extra.REFERRER";
     field public static final java.lang.String EXTRA_REFERRER_NAME = "android.intent.extra.REFERRER_NAME";
@@ -9730,6 +9730,14 @@
     field public final long period;
   }
 
+  public class QuickViewConstants {
+    field public static final java.lang.String FEATURE_DOWNLOAD = "android:download";
+    field public static final java.lang.String FEATURE_EDIT = "android:edit";
+    field public static final java.lang.String FEATURE_PRINT = "android:print";
+    field public static final java.lang.String FEATURE_SEND = "android:send";
+    field public static final java.lang.String FEATURE_VIEW = "android:view";
+  }
+
   public class ReceiverCallNotAllowedException extends android.util.AndroidRuntimeException {
     ctor public ReceiverCallNotAllowedException(java.lang.String);
   }
diff --git a/api/removed.txt b/api/removed.txt
index 75da976..1c51ba5 100644
--- a/api/removed.txt
+++ b/api/removed.txt
@@ -33,6 +33,10 @@
     method public abstract java.io.File getSharedPreferencesPath(java.lang.String);
   }
 
+  public class Intent implements java.lang.Cloneable android.os.Parcelable {
+    field public static final deprecated java.lang.String EXTRA_QUICK_VIEW_ADVANCED = "android.intent.extra.QUICK_VIEW_ADVANCED";
+  }
+
 }
 
 package android.content.pm {
diff --git a/api/system-current.txt b/api/system-current.txt
index 6a6b279..0196018 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -9988,7 +9988,7 @@
     field public static final java.lang.String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
     field public static final java.lang.String EXTRA_PROCESS_TEXT = "android.intent.extra.PROCESS_TEXT";
     field public static final java.lang.String EXTRA_PROCESS_TEXT_READONLY = "android.intent.extra.PROCESS_TEXT_READONLY";
-    field public static final java.lang.String EXTRA_QUICK_VIEW_ADVANCED = "android.intent.extra.QUICK_VIEW_ADVANCED";
+    field public static final java.lang.String EXTRA_QUICK_VIEW_FEATURES = "android.intent.extra.QUICK_VIEW_FEATURES";
     field public static final java.lang.String EXTRA_QUIET_MODE = "android.intent.extra.QUIET_MODE";
     field public static final java.lang.String EXTRA_REFERRER = "android.intent.extra.REFERRER";
     field public static final java.lang.String EXTRA_REFERRER_NAME = "android.intent.extra.REFERRER_NAME";
@@ -10259,6 +10259,14 @@
     field public final long period;
   }
 
+  public class QuickViewConstants {
+    field public static final java.lang.String FEATURE_DOWNLOAD = "android:download";
+    field public static final java.lang.String FEATURE_EDIT = "android:edit";
+    field public static final java.lang.String FEATURE_PRINT = "android:print";
+    field public static final java.lang.String FEATURE_SEND = "android:send";
+    field public static final java.lang.String FEATURE_VIEW = "android:view";
+  }
+
   public class ReceiverCallNotAllowedException extends android.util.AndroidRuntimeException {
     ctor public ReceiverCallNotAllowedException(java.lang.String);
   }
diff --git a/api/system-removed.txt b/api/system-removed.txt
index 3aa9398..6813ee9 100644
--- a/api/system-removed.txt
+++ b/api/system-removed.txt
@@ -31,6 +31,10 @@
     method public abstract java.io.File getSharedPreferencesPath(java.lang.String);
   }
 
+  public class Intent implements java.lang.Cloneable android.os.Parcelable {
+    field public static final deprecated java.lang.String EXTRA_QUICK_VIEW_ADVANCED = "android.intent.extra.QUICK_VIEW_ADVANCED";
+  }
+
 }
 
 package android.content.pm {
diff --git a/api/test-current.txt b/api/test-current.txt
index 1f342e6..c4f507e 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -9497,7 +9497,7 @@
     field public static final java.lang.String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
     field public static final java.lang.String EXTRA_PROCESS_TEXT = "android.intent.extra.PROCESS_TEXT";
     field public static final java.lang.String EXTRA_PROCESS_TEXT_READONLY = "android.intent.extra.PROCESS_TEXT_READONLY";
-    field public static final java.lang.String EXTRA_QUICK_VIEW_ADVANCED = "android.intent.extra.QUICK_VIEW_ADVANCED";
+    field public static final java.lang.String EXTRA_QUICK_VIEW_FEATURES = "android.intent.extra.QUICK_VIEW_FEATURES";
     field public static final java.lang.String EXTRA_QUIET_MODE = "android.intent.extra.QUIET_MODE";
     field public static final java.lang.String EXTRA_REFERRER = "android.intent.extra.REFERRER";
     field public static final java.lang.String EXTRA_REFERRER_NAME = "android.intent.extra.REFERRER_NAME";
@@ -9763,6 +9763,14 @@
     field public final long period;
   }
 
+  public class QuickViewConstants {
+    field public static final java.lang.String FEATURE_DOWNLOAD = "android:download";
+    field public static final java.lang.String FEATURE_EDIT = "android:edit";
+    field public static final java.lang.String FEATURE_PRINT = "android:print";
+    field public static final java.lang.String FEATURE_SEND = "android:send";
+    field public static final java.lang.String FEATURE_VIEW = "android:view";
+  }
+
   public class ReceiverCallNotAllowedException extends android.util.AndroidRuntimeException {
     ctor public ReceiverCallNotAllowedException(java.lang.String);
   }
diff --git a/api/test-removed.txt b/api/test-removed.txt
index 75da976..1c51ba5 100644
--- a/api/test-removed.txt
+++ b/api/test-removed.txt
@@ -33,6 +33,10 @@
     method public abstract java.io.File getSharedPreferencesPath(java.lang.String);
   }
 
+  public class Intent implements java.lang.Cloneable android.os.Parcelable {
+    field public static final deprecated java.lang.String EXTRA_QUICK_VIEW_ADVANCED = "android.intent.extra.QUICK_VIEW_ADVANCED";
+  }
+
 }
 
 package android.content.pm {
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 7890a96..e4c5d1d 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -668,19 +668,17 @@
      * a URI or a list of URIs.
      * <p>Activities handling this intent action should handle the vast majority of
      * MIME types rather than only specific ones.
+     * <p>Quick viewers must render the quick view image locally, and must not send
+     * file content outside current device.
      * <p>Input: {@link #getData} is a mandatory content URI of the item to
      * preview. {@link #getClipData} contains an optional list of content URIs
      * if there is more than one item to preview. {@link #EXTRA_INDEX} is an
      * optional index of the URI in the clip data to show first.
-     * <p>By default quick viewers are supposed to be lightweight and focus on
-     * previewing the content only. They should not expose features such as printing,
-     * opening in an external app, deleting, rotating, casting, etc.
-     * However, if {@link #EXTRA_QUICK_VIEW_ADVANCED} is true, then the quick viewer
-     * may show advanced UI which includes convenience actions suitable for the passed
-     * Uris.
+     * {@link #EXTRA_QUICK_VIEW_FEATURES} is an optional extra indicating the features
+     * that can be shown in the quick view UI.
      * <p>Output: nothing.
-     * @see #EXTRA_QUICK_VIEW_ADVANCED
      * @see #EXTRA_INDEX
+     * @see #EXTRA_QUICK_VIEW_FEATURES
      */
     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
     public static final String ACTION_QUICK_VIEW = "android.intent.action.QUICK_VIEW";
@@ -4488,7 +4486,7 @@
      * Optional index with semantics depending on the intent action.
      *
      * <p>The value must be an integer greater or equal to 0.
-     * @see ACTION_QUICK_VIEW
+     * @see #ACTION_QUICK_VIEW
      */
     public static final String EXTRA_INDEX = "android.intent.extra.INDEX";
 
@@ -4498,12 +4496,38 @@
      * casting, etc.
      *
      * <p>The value is boolean. By default false.
-     * @see ACTION_QUICK_VIEW
+     * @see #ACTION_QUICK_VIEW
+     * @removed
      */
+    @Deprecated
     public static final String EXTRA_QUICK_VIEW_ADVANCED =
             "android.intent.extra.QUICK_VIEW_ADVANCED";
 
     /**
+     * An optional extra of {@code String[]} indicating which quick view features should be made
+     * available to the user in the quick view UI while handing a
+     * {@link Intent#ACTION_QUICK_VIEW} intent.
+     * <li>Enumeration of features here is not meant to restrict capabilities of the quick viewer.
+     * Quick viewer can implement features not listed below.
+     * <li>Features included at this time are: {@link QuickViewConstants#FEATURE_VIEW},
+     * {@link QuickViewConstants#FEATURE_EDIT}, {@link QuickViewConstants#FEATURE_DOWNLOAD},
+     * {@link QuickViewConstants#FEATURE_SEND}, {@link QuickViewConstants#FEATURE_PRINT}.
+     * <p>
+     * Requirements:
+     * <li>Quick viewer shouldn't show a feature if the feature is absent in
+     * {@link #EXTRA_QUICK_VIEW_FEATURES}.
+     * <li>When {@link #EXTRA_QUICK_VIEW_FEATURES} is not present, quick viewer should follow
+     * internal policies.
+     * <li>Presence of an feature in {@link #EXTRA_QUICK_VIEW_FEATURES}, does not constitute a
+     * requirement that the feature be shown. Quick viewer may, according to its own policies,
+     * disable or hide features.
+     *
+     * @see #ACTION_QUICK_VIEW
+     */
+    public static final String EXTRA_QUICK_VIEW_FEATURES =
+            "android.intent.extra.QUICK_VIEW_FEATURES";
+
+    /**
      * Optional boolean extra indicating whether quiet mode has been switched on or off.
      * When a profile goes into quiet mode, all apps in the profile are killed and the
      * profile user is stopped. Widgets originating from the profile are masked, and app
diff --git a/core/java/android/content/QuickViewConstants.java b/core/java/android/content/QuickViewConstants.java
new file mode 100644
index 0000000..7455d0c
--- /dev/null
+++ b/core/java/android/content/QuickViewConstants.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2017 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 android.content;
+
+/**
+ * Constants for {@link Intent#ACTION_QUICK_VIEW}.
+ */
+public class QuickViewConstants {
+
+    private QuickViewConstants() {}
+
+    /**
+     * Feature to view a document using system standard viewing mechanism, like
+     * {@link Intent#ACTION_VIEW}.
+     *
+     * @see Intent#EXTRA_QUICK_VIEW_FEATURES
+     * @see Intent#ACTION_QUICK_VIEW
+     */
+    public static final String FEATURE_VIEW = "android:view";
+
+    /**
+     * Feature to view a document using system standard editing mechanism, like
+     * {@link Intent#ACTION_EDIT}.
+     *
+     * @see Intent#EXTRA_QUICK_VIEW_FEATURES
+     * @see Intent#ACTION_QUICK_VIEW
+     */
+    public static final String FEATURE_EDIT = "android:edit";
+
+    /**
+     * Feature to view a document using system standard sending mechanism, like
+     * {@link Intent#ACTION_SEND}.
+     *
+     * @see Intent#EXTRA_QUICK_VIEW_FEATURES
+     * @see Intent#ACTION_QUICK_VIEW
+     */
+    public static final String FEATURE_SEND = "android:send";
+
+    /**
+     * Feature to download a document to the local file system.
+     *
+     * @see Intent#EXTRA_QUICK_VIEW_FEATURES
+     * @see Intent#ACTION_QUICK_VIEW
+     */
+    public static final String FEATURE_DOWNLOAD = "android:download";
+
+    /**
+     * Feature to print a document.
+     *
+     * @see Intent#EXTRA_QUICK_VIEW_FEATURES
+     * @see Intent#ACTION_QUICK_VIEW
+     */
+    public static final String FEATURE_PRINT = "android:print";
+}