Unify the caption preference class naming

Bug: 197695932 Test: make RunSettingsRoboTests Change-Id: Ice244442ad21e6d9f006d488992e9f58cf5c8fb0
2022-08-01 16:47:12 +08:00
parent 0494c4540c
commit e57125650d
51 changed files with 202 additions and 210 deletions
--- a/src/com/android/settings/accessibility/CaptioningPreviewPreferenceController.java
+++ b/src/com/android/settings/accessibility/CaptioningPreviewPreferenceController.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2022 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 com.android.settings.accessibility;
+
+import android.content.Context;
+import android.os.Handler;
+import android.os.Looper;
+import android.provider.Settings;
+import android.view.View;
+import android.view.accessibility.CaptioningManager.CaptionStyle;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.PreferenceScreen;
+
+import com.android.internal.widget.SubtitleView;
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.accessibility.AccessibilityUtils;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+import com.android.settingslib.widget.LayoutPreference;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
+
+/** Controller that shows the captioning locale summary. */
+public class CaptioningPreviewPreferenceController extends BasePreferenceController
+        implements LifecycleObserver, OnStart, OnStop {
+
+    @VisibleForTesting
+    static final List<String> CAPTIONING_FEATURE_KEYS = Arrays.asList(
+            Settings.Secure.ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
+            Settings.Secure.ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
+            Settings.Secure.ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
+            Settings.Secure.ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
+            Settings.Secure.ACCESSIBILITY_CAPTIONING_PRESET,
+            Settings.Secure.ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
+            Settings.Secure.ACCESSIBILITY_CAPTIONING_TYPEFACE,
+            Settings.Secure.ACCESSIBILITY_CAPTIONING_FONT_SCALE
+    );
+    private final Handler mHandler = new Handler(Looper.getMainLooper());
+    @VisibleForTesting
+    AccessibilitySettingsContentObserver mSettingsContentObserver;
+    private CaptionHelper mCaptionHelper;
+    private LayoutPreference mPreference;
+
+    public CaptioningPreviewPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+        mCaptionHelper = new CaptionHelper(context);
+        mSettingsContentObserver = new AccessibilitySettingsContentObserver(mHandler);
+        mSettingsContentObserver.registerKeysToObserverCallback(CAPTIONING_FEATURE_KEYS,
+                key -> refreshPreviewText());
+    }
+
+    @Override
+    public void onStart() {
+        mSettingsContentObserver.register(mContext.getContentResolver());
+    }
+
+    @Override
+    public void onStop() {
+        mContext.getContentResolver().unregisterContentObserver(mSettingsContentObserver);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+        final View previewViewport = mPreference.findViewById(R.id.preview_viewport);
+        previewViewport.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
+            @Override
+            public void onLayoutChange(View v, int left, int top, int right,
+                    int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
+                if ((oldRight - oldLeft) != (right - left)) {
+                    // Remove the listener once the callback is triggered.
+                    previewViewport.removeOnLayoutChangeListener(this);
+                    mHandler.post(() -> refreshPreviewText());
+                }
+            }
+        });
+    }
+
+    private void refreshPreviewText() {
+        final SubtitleView previewText = mPreference.findViewById(R.id.preview_text);
+        if (previewText != null) {
+            final View previewViewport = mPreference.findViewById(R.id.preview_viewport);
+            final int styleId = mCaptionHelper.getRawUserStyle();
+            mCaptionHelper.applyCaptionProperties(previewText, previewViewport, styleId);
+
+            final Locale locale = mCaptionHelper.getLocale();
+            if (locale != null) {
+                final CharSequence localizedText = AccessibilityUtils.getTextForLocale(
+                        mContext, locale, R.string.captioning_preview_text);
+                previewText.setText(localizedText);
+            } else {
+                previewText.setText(R.string.captioning_preview_text);
+            }
+
+            final View previewWindow = mPreference.findViewById(R.id.preview_window);
+            final CaptionStyle style = mCaptionHelper.getUserStyle();
+            if (style.hasWindowColor()) {
+                previewWindow.setBackgroundColor(style.windowColor);
+            } else {
+                final CaptionStyle defStyle = CaptionStyle.DEFAULT;
+                previewWindow.setBackgroundColor(defStyle.windowColor);
+            }
+        }
+    }
+}