From 2e3f08b1e88730a56beb18664e88deb0aec647d2 Mon Sep 17 00:00:00 2001
From: mincheli <mincheli@google.com>
Date: Wed, 20 Jan 2021 15:58:21 +0800
Subject: [PATCH] Adjusts the default magnification settings for
 config_magnification_area

Cnfig flag, config_magnification_area, determines if the device
supports magnification area or not.
If OEM doesn't support magnification area, we should adjust the
magnification capability setting and window magnification prompt
setting.

Bug: 177371954
Test: atest SettingsBackupTest
Change-Id: I67947285eb6a73b8e0e21d1db866c426a0ea49d7
(cherry picked from commit f9d7150a5cffcd4a0d4b9223ab049817a126c726)
Merged-In: I67947285eb6a73b8e0e21d1db866c426a0ea49d7
---
 .../providers/settings/SettingsProvider.java  | 19 +++++++++++++------
 .../accessibility/AccessibilityUserState.java |  9 +++++++++
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
index c7790fd3ace73..80d1b7692408a 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
@@ -4726,17 +4726,23 @@ public class SettingsProvider extends ContentProvider {
                 }
 
                 if (currentVersion == 192) {
-                    // Version 192: set the default value for magnification capabilities. If
-                    // magnification is enabled by the user, set it to full-screen, and set a value
-                    // to show a prompt when using the magnification first time after upgrading.
+                    // Version 192: set the default value for magnification capabilities.
+                    // If the device supports magnification area and magnification is enabled
+                    // by the user, set it to full-screen, and set a value to show a prompt
+                    // when using the magnification first time after upgrading.
                     final SettingsState secureSettings = getSecureSettingsLocked(userId);
                     final Setting magnificationCapabilities = secureSettings.getSettingLocked(
                             Secure.ACCESSIBILITY_MAGNIFICATION_CAPABILITY);
+                    final boolean supportMagnificationArea = getContext().getResources().getBoolean(
+                            com.android.internal.R.bool.config_magnification_area);
+                    final int capability = supportMagnificationArea
+                            ? R.integer.def_accessibility_magnification_capabilities
+                            : Secure.ACCESSIBILITY_MAGNIFICATION_MODE_FULLSCREEN;
+                    final String supportShowPrompt = supportMagnificationArea ? "1" : "0";
                     if (magnificationCapabilities.isNull()) {
                         secureSettings.insertSettingLocked(
                                 Secure.ACCESSIBILITY_MAGNIFICATION_CAPABILITY,
-                                String.valueOf(getContext().getResources().getInteger(
-                                        R.integer.def_accessibility_magnification_capabilities)),
+                                String.valueOf(getContext().getResources().getInteger(capability)),
                                 null, true, SettingsState.SYSTEM_PACKAGE_NAME);
 
                         if (isMagnificationSettingsOn(secureSettings)) {
@@ -4746,7 +4752,8 @@ public class SettingsProvider extends ContentProvider {
                                     null, false  /* makeDefault */,
                                     SettingsState.SYSTEM_PACKAGE_NAME);
                             secureSettings.insertSettingLocked(
-                                    Secure.ACCESSIBILITY_SHOW_WINDOW_MAGNIFICATION_PROMPT, "1",
+                                    Secure.ACCESSIBILITY_SHOW_WINDOW_MAGNIFICATION_PROMPT,
+                                    supportShowPrompt,
                                     null, false /* makeDefault */,
                                     SettingsState.SYSTEM_PACKAGE_NAME);
                         }
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityUserState.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityUserState.java
index 22efd3718d7a8..eb30fdeddd909 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityUserState.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityUserState.java
@@ -118,6 +118,9 @@ class AccessibilityUserState {
     private int mNonInteractiveUiTimeout = 0;
     private int mInteractiveUiTimeout = 0;
     private int mLastSentClientState = -1;
+
+    /** {@code true} if the device config supports magnification area. */
+    private final boolean mSupportMagnificationArea;
     // The magnification mode of default display.
     private int mMagnificationMode = ACCESSIBILITY_MAGNIFICATION_MODE_FULLSCREEN;
     // The magnification capabilities used to know magnification mode could be switched.
@@ -138,6 +141,10 @@ class AccessibilityUserState {
     private int mSoftKeyboardShowMode = SHOW_MODE_AUTO;
 
     boolean isValidMagnificationModeLocked() {
+        if (!mSupportMagnificationArea
+                && mMagnificationMode == Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_WINDOW) {
+            return false;
+        }
         return (mMagnificationCapabilities & mMagnificationMode) != 0;
     }
 
@@ -156,6 +163,8 @@ class AccessibilityUserState {
                 R.color.accessibility_focus_highlight_color);
         mFocusStrokeWidth = mFocusStrokeWidthDefaultValue;
         mFocusColor = mFocusColorDefaultValue;
+        mSupportMagnificationArea = mContext.getResources().getBoolean(
+                R.bool.config_magnification_area);
     }
 
     boolean isHandlingAccessibilityEventsLocked() {