Add an API supportsSwitchingToNextInput

To let the system know an IME supports switching to a next input method

Bug: 8364845
Change-Id: Iabf4f106893ee6a262ad0cd44dbec0c661bf0ff2

1 files changed, 22 insertions, 1 deletions

diff --git a/core/java/android/view/inputmethod/InputMethodInfo.java b/core/java/android/view/inputmethod/InputMethodInfo.java
index feaab3e..c440c7b 100644
--- a/core/java/android/view/inputmethod/InputMethodInfo.java
+++ b/core/java/android/view/inputmethod/InputMethodInfo.java
@@ -82,11 +82,16 @@ public final class InputMethodInfo implements Parcelable {
     private final boolean mIsAuxIme;
 
     /**
-     * Cavert: mForceDefault must be false for production. This flag is only for test.
+     * Caveat: mForceDefault must be false for production. This flag is only for test.
      */
     private final boolean mForceDefault;
 
     /**
+     * The flag whether this IME supports ways to switch to a next input method (e.g. globe key.)
+     */
+    private final boolean mSupportsSwitchingToNextInputMethod;
+
+    /**
      * Constructor.
      *
      * @param context The Context in which we are parsing the input method.
@@ -114,6 +119,7 @@ public final class InputMethodInfo implements Parcelable {
         ServiceInfo si = service.serviceInfo;
         mId = new ComponentName(si.packageName, si.name).flattenToShortString();
         boolean isAuxIme = true;
+        boolean supportsSwitchingToNextInputMethod = false; // false as default
         mForceDefault = false;
 
         PackageManager pm = context.getPackageManager();
@@ -149,6 +155,9 @@ public final class InputMethodInfo implements Parcelable {
                     com.android.internal.R.styleable.InputMethod_settingsActivity);
             isDefaultResId = sa.getResourceId(
                     com.android.internal.R.styleable.InputMethod_isDefault, 0);
+            supportsSwitchingToNextInputMethod = sa.getBoolean(
+                    com.android.internal.R.styleable.InputMethod_supportsSwitchingToNextInputMethod,
+                    false);
             sa.recycle();
 
             final int depth = parser.getDepth();
@@ -216,6 +225,7 @@ public final class InputMethodInfo implements Parcelable {
         mSettingsActivityName = settingsActivityComponent;
         mIsDefaultResId = isDefaultResId;
         mIsAuxIme = isAuxIme;
+        mSupportsSwitchingToNextInputMethod = supportsSwitchingToNextInputMethod;
     }
 
     InputMethodInfo(Parcel source) {
@@ -223,6 +233,7 @@ public final class InputMethodInfo implements Parcelable {
         mSettingsActivityName = source.readString();
         mIsDefaultResId = source.readInt();
         mIsAuxIme = source.readInt() == 1;
+        mSupportsSwitchingToNextInputMethod = source.readInt() == 1;
         mService = ResolveInfo.CREATOR.createFromParcel(source);
         source.readTypedList(mSubtypes, InputMethodSubtype.CREATOR);
         mForceDefault = false;
@@ -254,6 +265,7 @@ public final class InputMethodInfo implements Parcelable {
             mSubtypes.addAll(subtypes);
         }
         mForceDefault = forceDefault;
+        mSupportsSwitchingToNextInputMethod = true;
     }
 
     private static ResolveInfo buildDummyResolveInfo(String packageName, String className,
@@ -435,6 +447,14 @@ public final class InputMethodInfo implements Parcelable {
     }
 
     /**
+     * @return true if this input method supports ways to switch to a next input method.
+     * @hide
+     */
+    public boolean supportsSwitchingToNextInputMethod() {
+        return mSupportsSwitchingToNextInputMethod;
+    }
+
+    /**
      * Used to package this object into a {@link Parcel}.
      * 
      * @param dest The {@link Parcel} to be written.
@@ -446,6 +466,7 @@ public final class InputMethodInfo implements Parcelable {
         dest.writeString(mSettingsActivityName);
         dest.writeInt(mIsDefaultResId);
         dest.writeInt(mIsAuxIme ? 1 : 0);
+        dest.writeInt(mSupportsSwitchingToNextInputMethod ? 1 : 0);
         mService.writeToParcel(dest, flags);
         dest.writeTypedList(mSubtypes);
     }