Hide SoftInput when INVALID_DISPLAY

We only prevent to show soft input in
IMMS#startInputUncheckedLocked when
DISPLAY_IME_POLICY_HIDE is set.

If a display with DISPLAY_IME_POLICY_HIDE,
we should hide the soft input anyway.

Bug: 199991634
Test: atest CtsInputMethodTestCases
Test: Verify as following steps:
1) adb shell wm size 800x1280
2) adb shell wm density 213
3) atest MultiDisplaySystemDecorationTests#\
   testDisplayPolicyImeHideImeNoSystemDecorations

Merged-In: I3ab03667c28ec5beb6c3332aceaae4a63cd7309a
Change-Id: I3ab03667c28ec5beb6c3332aceaae4a63cd7309a
(cherry picked from commit d41ac0605c4cfe9142cc340b8c081aa9a5ffe34d)

3 files changed, 13 insertions, 1 deletions

diff --git a/core/java/com/android/internal/inputmethod/InputMethodDebug.java b/core/java/com/android/internal/inputmethod/InputMethodDebug.java
index a00b993749a5..bf094dbd8f1e 100644
--- a/core/java/com/android/internal/inputmethod/InputMethodDebug.java
+++ b/core/java/com/android/internal/inputmethod/InputMethodDebug.java
@@ -236,6 +236,8 @@ public final class InputMethodDebug {
                 return "HIDE_TOGGLE_SOFT_INPUT";
             case SoftInputShowHideReason.SHOW_SOFT_INPUT_BY_INSETS_API:
                 return "SHOW_SOFT_INPUT_BY_INSETS_API";
+            case SoftInputShowHideReason.HIDE_DISPLAY_IME_POLICY_HIDE:
+                return "HIDE_DISPLAY_IME_POLICY_HIDE";
             default:
                 return "Unknown=" + reason;
         }
diff --git a/core/java/com/android/internal/inputmethod/SoftInputShowHideReason.java b/core/java/com/android/internal/inputmethod/SoftInputShowHideReason.java
index e3713a3b8971..9e5776292031 100644
--- a/core/java/com/android/internal/inputmethod/SoftInputShowHideReason.java
+++ b/core/java/com/android/internal/inputmethod/SoftInputShowHideReason.java
@@ -19,6 +19,7 @@ package com.android.internal.inputmethod;
 import static java.lang.annotation.RetentionPolicy.SOURCE;
 
 import android.annotation.IntDef;
+import android.view.WindowManager;
 import android.view.WindowManager.LayoutParams;
 
 import java.lang.annotation.Retention;
@@ -53,7 +54,8 @@ import java.lang.annotation.Retention;
         SoftInputShowHideReason.SHOW_RESTORE_IME_VISIBILITY,
         SoftInputShowHideReason.SHOW_TOGGLE_SOFT_INPUT,
         SoftInputShowHideReason.HIDE_TOGGLE_SOFT_INPUT,
-        SoftInputShowHideReason.SHOW_SOFT_INPUT_BY_INSETS_API})
+        SoftInputShowHideReason.SHOW_SOFT_INPUT_BY_INSETS_API,
+        SoftInputShowHideReason.HIDE_DISPLAY_IME_POLICY_HIDE})
 public @interface SoftInputShowHideReason {
     /** Show soft input by {@link android.view.inputmethod.InputMethodManager#showSoftInput}. */
     int SHOW_SOFT_INPUT = 0;
@@ -195,4 +197,10 @@ public @interface SoftInputShowHideReason {
      * {@link android.view.InsetsController#show(int)};
      */
     int SHOW_SOFT_INPUT_BY_INSETS_API = 25;
+
+    /**
+     * Hide soft input if Ime policy has been set to {@link WindowManager#DISPLAY_IME_POLICY_HIDE}.
+     * See also {@code InputMethodManagerService#mImeHiddenByDisplayPolicy}.
+     */
+    int HIDE_DISPLAY_IME_POLICY_HIDE = 26;
 }
diff --git a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
index 0e82c2a42f3f..9d6678053533 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
@@ -2356,6 +2356,8 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
 
         if (displayIdToShowIme == INVALID_DISPLAY) {
             mImeHiddenByDisplayPolicy = true;
+            hideCurrentInputLocked(mCurFocusedWindow, 0, null,
+                    SoftInputShowHideReason.HIDE_DISPLAY_IME_POLICY_HIDE);
             return InputBindResult.NO_IME;
         }
         mImeHiddenByDisplayPolicy = false;