DO NOT MERGE Revert "Fix showing keyboard without editor focused in some case..."

Reason for revert: b/169215792
Reverted Changes:
I37ae6e30d:Fix showing keyboard without editor focused in som...

Change-Id: Ia370070d42aedc5aa411ec34d4c7aa43c1c65bcf

core/java/com/android/internal/inputmethod/InputMethodDebug.java

@@ -224,8 +224,6 @@ public final class InputMethodDebug {
                 return "HIDE_DOCKED_STACK_ATTACHED";
             case SoftInputShowHideReason.HIDE_RECENTS_ANIMATION:
                 return "HIDE_RECENTS_ANIMATION";
-            case SoftInputShowHideReason.HIDE_SAME_WINDOW_FOCUSED_WITHOUT_EDITOR:
-                return "HIDE_SAME_WINDOW_FOCUSED_WITHOUT_EDITOR";
             default:
                 return "Unknown=" + reason;
         }

core/java/com/android/internal/inputmethod/SoftInputShowHideReason.java

@@ -47,8 +47,7 @@ import java.lang.annotation.Retention;
         SoftInputShowHideReason.HIDE_POWER_BUTTON_GO_HOME,
         SoftInputShowHideReason.HIDE_DOCKED_STACK_ATTACHED,
         SoftInputShowHideReason.HIDE_RECENTS_ANIMATION,
-        SoftInputShowHideReason.HIDE_BUBBLES,
-        SoftInputShowHideReason.HIDE_SAME_WINDOW_FOCUSED_WITHOUT_EDITOR})
+        SoftInputShowHideReason.HIDE_BUBBLES})
 public @interface SoftInputShowHideReason {
     /** Show soft input by {@link android.view.inputmethod.InputMethodManager#showSoftInput}. */
     int SHOW_SOFT_INPUT = 0;
@@ -148,17 +147,4 @@ public @interface SoftInputShowHideReason {
      * switching, or collapsing Bubbles.
      */
     int HIDE_BUBBLES = 19;
-
-    /**
-     * Hide soft input when focusing the same window (e.g. screen turned-off and turn-on) which no
-     * valid focused editor.
-     *
-     * Note: From Android R, the window focus change callback is processed by InputDispatcher,
-     * some focus behavior changes (e.g. There are an activity with a dialog window, after
-     * screen turned-off and turned-on, before Android R the window focus sequence would be
-     * the activity first and then the dialog focused, however, in R the focus sequence would be
-     * only the dialog focused as it's the latest window with input focus) makes we need to hide
-     * soft-input when the same window focused again to align with the same behavior prior to R.
-     */
-    int HIDE_SAME_WINDOW_FOCUSED_WITHOUT_EDITOR = 20;
 }

services/core/java/com/android/server/inputmethod/InputMethodManagerService.java

@@ -71,7 +71,6 @@ import android.inputmethodservice.InputMethodService;
 import android.media.AudioManagerInternal;
 import android.net.Uri;
 import android.os.Binder;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.Debug;
 import android.os.Handler;
@@ -3274,9 +3273,6 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
 
     boolean hideCurrentInputLocked(IBinder windowToken, int flags, ResultReceiver resultReceiver,
             @SoftInputShowHideReason int reason) {
-        if (mCurClient == null || mCurClient.curSession == null) {
-            return false;
-        }
         if ((flags&InputMethodManager.HIDE_IMPLICIT_ONLY) != 0
                 && (mShowExplicitlyRequested || mShowForced)) {
             if (DEBUG) Slog.v(TAG, "Not hiding: explicit show not cancelled by non-explicit hide");
@@ -3461,9 +3457,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
         // pre-rendering not supported on low-ram devices.
         cs.shouldPreRenderIme = DebugFlags.FLAG_PRE_RENDER_IME_VIEWS.value() && !mIsLowRam;
 
-        final boolean sameWindowFocused = mCurFocusedWindow == windowToken;
-        final boolean isTextEditor = (startInputFlags & StartInputFlags.IS_TEXT_EDITOR) != 0;
-        if (sameWindowFocused && isTextEditor) {
+        if (mCurFocusedWindow == windowToken) {
             if (DEBUG) {
                 Slog.w(TAG, "Window already focused, ignoring focus gain of: " + client
                         + " attribute=" + attribute + ", token = " + windowToken
@@ -3478,7 +3472,6 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
                     InputBindResult.ResultCode.SUCCESS_REPORT_WINDOW_FOCUS_ONLY,
                     null, null, null, -1, null);
         }
-
         mCurFocusedWindow = windowToken;
         mCurFocusedWindowSoftInputMode = softInputMode;
         mCurFocusedWindowClient = cs;
@@ -3496,6 +3489,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
                         == LayoutParams.SOFT_INPUT_ADJUST_RESIZE
                 || mRes.getConfiguration().isLayoutSizeAtLeast(
                         Configuration.SCREENLAYOUT_SIZE_LARGE);
+        final boolean isTextEditor = (startInputFlags & StartInputFlags.IS_TEXT_EDITOR) != 0;
 
         // We want to start input before showing the IME, but after closing
         // it.  We want to do this after closing it to help the IME disappear
@@ -3555,11 +3549,9 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
                 }
                 break;
             case LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN:
-                if (!sameWindowFocused) {
-                    if (DEBUG) Slog.v(TAG, "Window asks to hide input");
-                    hideCurrentInputLocked(mCurFocusedWindow, 0, null,
-                            SoftInputShowHideReason.HIDE_ALWAYS_HIDDEN_STATE);
-                }
+                if (DEBUG) Slog.v(TAG, "Window asks to hide input");
+                hideCurrentInputLocked(mCurFocusedWindow, 0, null,
+                        SoftInputShowHideReason.HIDE_ALWAYS_HIDDEN_STATE);
                 break;
             case LayoutParams.SOFT_INPUT_STATE_VISIBLE:
                 if ((softInputMode & LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION) != 0) {
@@ -3584,15 +3576,13 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
                 if (DEBUG) Slog.v(TAG, "Window asks to always show input");
                 if (InputMethodUtils.isSoftInputModeStateVisibleAllowed(
                         unverifiedTargetSdkVersion, startInputFlags)) {
-                    if (!sameWindowFocused) {
-                        if (attribute != null) {
-                            res = startInputUncheckedLocked(cs, inputContext, missingMethods,
-                                    attribute, startInputFlags, startInputReason);
-                            didStart = true;
-                        }
-                        showCurrentInputLocked(windowToken, InputMethodManager.SHOW_IMPLICIT, null,
-                                SoftInputShowHideReason.SHOW_STATE_ALWAYS_VISIBLE);
+                    if (attribute != null) {
+                        res = startInputUncheckedLocked(cs, inputContext, missingMethods,
+                                attribute, startInputFlags, startInputReason);
+                        didStart = true;
                     }
+                    showCurrentInputLocked(windowToken, InputMethodManager.SHOW_IMPLICIT, null,
+                            SoftInputShowHideReason.SHOW_STATE_ALWAYS_VISIBLE);
                 } else {
                     Slog.e(TAG, "SOFT_INPUT_STATE_ALWAYS_VISIBLE is ignored because"
                             + " there is no focused view that also returns true from"
@@ -3603,13 +3593,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
 
         if (!didStart) {
             if (attribute != null) {
-                if (sameWindowFocused) {
-                    hideCurrentInputLocked(mCurFocusedWindow, 0, null,
-                            SoftInputShowHideReason.HIDE_SAME_WINDOW_FOCUSED_WITHOUT_EDITOR);
-                    res = new InputBindResult(
-                            InputBindResult.ResultCode.SUCCESS_REPORT_WINDOW_FOCUS_ONLY,
-                            null, null, null, -1, null);
-                } else if (!DebugFlags.FLAG_OPTIMIZE_START_INPUT.value()
+                if (!DebugFlags.FLAG_OPTIMIZE_START_INPUT.value()
                         || (startInputFlags & StartInputFlags.IS_TEXT_EDITOR) != 0) {
                     res = startInputUncheckedLocked(cs, inputContext, missingMethods, attribute,
                             startInputFlags, startInputReason);
@@ -3623,10 +3607,6 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
         return res;
     }
 
-    private boolean isImeVisible() {
-        return (mImeWindowVis & InputMethodService.IME_VISIBLE) != 0;
-    }
-
     private boolean canShowInputMethodPickerLocked(IInputMethodClient client) {
         // TODO(yukawa): multi-display support.
         final int uid = Binder.getCallingUid();