341 lines
14 KiB
Java
341 lines
14 KiB
Java
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.accessibility;
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import android.app.ActionBar;
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import android.app.Activity;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.Color;
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import android.os.Bundle;
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import android.preference.ListPreference;
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import android.preference.Preference;
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import android.preference.PreferenceCategory;
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import android.preference.PreferenceFrameLayout;
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import android.preference.Preference.OnPreferenceChangeListener;
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import android.provider.Settings;
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import android.view.Gravity;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.ViewGroup.LayoutParams;
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import android.view.accessibility.CaptioningManager;
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import android.view.accessibility.CaptioningManager.CaptionStyle;
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import com.android.internal.widget.SubtitleView;
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import com.android.settings.R;
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import com.android.settings.SettingsPreferenceFragment;
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import com.android.settings.accessibility.ListDialogPreference.OnValueChangedListener;
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import com.android.settings.accessibility.ToggleSwitch.OnBeforeCheckedChangeListener;
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import java.util.Locale;
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/**
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* Settings fragment containing captioning properties.
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*/
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public class CaptionPropertiesFragment extends SettingsPreferenceFragment
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implements OnPreferenceChangeListener, OnValueChangedListener {
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private static final float DEFAULT_FONT_SIZE = 48f;
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private CaptioningManager mCaptioningManager;
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private SubtitleView mPreviewText;
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// Standard options.
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private LocalePreference mLocale;
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private ListPreference mFontSize;
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private PresetPreference mPreset;
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// Custom options.
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private ListPreference mTypeface;
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private ColorPreference mForegroundColor;
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private EdgeTypePreference mEdgeType;
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private ColorPreference mEdgeColor;
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private ColorPreference mBackgroundColor;
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private ColorPreference mBackgroundOpacity;
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private PreferenceCategory mCustom;
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private boolean mShowingCustom;
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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mCaptioningManager = (CaptioningManager) getSystemService(Context.CAPTIONING_SERVICE);
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addPreferencesFromResource(R.xml.captioning_settings);
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initializeAllPreferences();
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updateAllPreferences();
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refreshShowingCustom();
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installUpdateListeners();
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}
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@Override
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public View onCreateView(
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LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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final View rootView = inflater.inflate(R.layout.captioning_preview, container, false);
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// We have to do this now because PreferenceFrameLayout looks at it
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// only when the view is added.
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if (container instanceof PreferenceFrameLayout) {
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((PreferenceFrameLayout.LayoutParams) rootView.getLayoutParams()).removeBorders = true;
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}
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final View content = super.onCreateView(inflater, container, savedInstanceState);
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((ViewGroup) rootView.findViewById(R.id.properties_fragment)).addView(
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content, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
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return rootView;
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}
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@Override
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public void onViewCreated(View view, Bundle savedInstanceState) {
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super.onViewCreated(view, savedInstanceState);
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mPreviewText = (SubtitleView) view.findViewById(R.id.preview_text);
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installActionBarToggleSwitch();
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refreshPreviewText();
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}
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private void refreshPreviewText() {
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final Context context = getActivity();
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if (context == null) {
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// We've been destroyed, abort!
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return;
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}
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final SubtitleView preview = mPreviewText;
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if (preview != null) {
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final int styleId = mCaptioningManager.getRawUserStyle();
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applyCaptionProperties(mCaptioningManager, preview, styleId);
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final Locale locale = mCaptioningManager.getLocale();
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if (locale != null) {
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final CharSequence localizedText = AccessibilityUtils.getTextForLocale(
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context, locale, R.string.captioning_preview_text);
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preview.setText(localizedText);
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} else {
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preview.setText(R.string.captioning_preview_text);
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}
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}
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}
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public static void applyCaptionProperties(
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CaptioningManager manager, SubtitleView previewText, int styleId) {
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previewText.setStyle(styleId);
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final Context context = previewText.getContext();
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final ContentResolver cr = context.getContentResolver();
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final float fontScale = manager.getFontScale();
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previewText.setTextSize(fontScale * DEFAULT_FONT_SIZE);
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final Locale locale = manager.getLocale();
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if (locale != null) {
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final CharSequence localizedText = AccessibilityUtils.getTextForLocale(
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context, locale, R.string.captioning_preview_characters);
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previewText.setText(localizedText);
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} else {
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previewText.setText(R.string.captioning_preview_characters);
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}
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}
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private void installActionBarToggleSwitch() {
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final Activity activity = getActivity();
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final ToggleSwitch toggleSwitch = new ToggleSwitch(activity);
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final int padding = getResources().getDimensionPixelSize(
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R.dimen.action_bar_switch_padding);
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toggleSwitch.setPaddingRelative(0, 0, padding, 0);
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final ActionBar actionBar = activity.getActionBar();
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actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM, ActionBar.DISPLAY_SHOW_CUSTOM);
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final ActionBar.LayoutParams params = new ActionBar.LayoutParams(
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ActionBar.LayoutParams.WRAP_CONTENT, ActionBar.LayoutParams.WRAP_CONTENT,
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Gravity.CENTER_VERTICAL | Gravity.END);
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actionBar.setCustomView(toggleSwitch, params);
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final boolean enabled = mCaptioningManager.isEnabled();
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getPreferenceScreen().setEnabled(enabled);
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mPreviewText.setVisibility(enabled ? View.VISIBLE : View.INVISIBLE);
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toggleSwitch.setCheckedInternal(enabled);
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toggleSwitch.setOnBeforeCheckedChangeListener(new OnBeforeCheckedChangeListener() {
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@Override
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public boolean onBeforeCheckedChanged(ToggleSwitch toggleSwitch, boolean checked) {
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toggleSwitch.setCheckedInternal(checked);
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Settings.Secure.putInt(getActivity().getContentResolver(),
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Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, checked ? 1 : 0);
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getPreferenceScreen().setEnabled(checked);
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mPreviewText.setVisibility(checked ? View.VISIBLE : View.INVISIBLE);
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return false;
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}
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});
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}
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private void initializeAllPreferences() {
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mLocale = (LocalePreference) findPreference("captioning_locale");
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mFontSize = (ListPreference) findPreference("captioning_font_size");
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final Resources res = getResources();
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final int[] presetValues = res.getIntArray(R.array.captioning_preset_selector_values);
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final String[] presetTitles = res.getStringArray(R.array.captioning_preset_selector_titles);
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mPreset = (PresetPreference) findPreference("captioning_preset");
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mPreset.setValues(presetValues);
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mPreset.setTitles(presetTitles);
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mCustom = (PreferenceCategory) findPreference("custom");
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mShowingCustom = true;
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final int[] colorValues = res.getIntArray(R.array.captioning_color_selector_values);
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final String[] colorTitles = res.getStringArray(R.array.captioning_color_selector_titles);
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mForegroundColor = (ColorPreference) mCustom.findPreference("captioning_foreground_color");
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mForegroundColor.setTitles(colorTitles);
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mForegroundColor.setValues(colorValues);
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mEdgeColor = (ColorPreference) mCustom.findPreference("captioning_edge_color");
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mEdgeColor.setTitles(colorTitles);
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mEdgeColor.setValues(colorValues);
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// Add "none" as an additional option for backgrounds.
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final int[] bgColorValues = new int[colorValues.length + 1];
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final String[] bgColorTitles = new String[colorTitles.length + 1];
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System.arraycopy(colorValues, 0, bgColorValues, 1, colorValues.length);
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System.arraycopy(colorTitles, 0, bgColorTitles, 1, colorTitles.length);
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bgColorValues[0] = Color.TRANSPARENT;
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bgColorTitles[0] = getString(R.string.color_none);
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mBackgroundColor = (ColorPreference) mCustom.findPreference("captioning_background_color");
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mBackgroundColor.setTitles(bgColorTitles);
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mBackgroundColor.setValues(bgColorValues);
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final int[] opacityValues = res.getIntArray(R.array.captioning_opacity_selector_values);
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final String[] opacityTitles = res.getStringArray(
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R.array.captioning_opacity_selector_titles);
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mBackgroundOpacity = (ColorPreference) mCustom.findPreference(
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"captioning_background_opacity");
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mBackgroundOpacity.setTitles(opacityTitles);
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mBackgroundOpacity.setValues(opacityValues);
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mEdgeType = (EdgeTypePreference) mCustom.findPreference("captioning_edge_type");
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mTypeface = (ListPreference) mCustom.findPreference("captioning_typeface");
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}
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private void installUpdateListeners() {
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mPreset.setOnValueChangedListener(this);
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mForegroundColor.setOnValueChangedListener(this);
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mEdgeColor.setOnValueChangedListener(this);
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mBackgroundColor.setOnValueChangedListener(this);
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mBackgroundOpacity.setOnValueChangedListener(this);
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mEdgeType.setOnValueChangedListener(this);
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mTypeface.setOnPreferenceChangeListener(this);
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mFontSize.setOnPreferenceChangeListener(this);
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mLocale.setOnPreferenceChangeListener(this);
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}
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private void updateAllPreferences() {
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final int preset = mCaptioningManager.getRawUserStyle();
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mPreset.setValue(preset);
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final float fontSize = mCaptioningManager.getFontScale();
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mFontSize.setValue(Float.toString(fontSize));
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final ContentResolver cr = getContentResolver();
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final CaptionStyle attrs = CaptionStyle.getCustomStyle(cr);
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mForegroundColor.setValue(attrs.foregroundColor);
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mEdgeType.setValue(attrs.edgeType);
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mEdgeColor.setValue(attrs.edgeColor);
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final int backgroundColor = attrs.backgroundColor;
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final int bgColor;
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final int bgAlpha;
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if (Color.alpha(backgroundColor) == 0) {
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bgColor = Color.TRANSPARENT;
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bgAlpha = (backgroundColor & 0xFF) << 24;
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} else {
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bgColor = backgroundColor | 0xFF000000;
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bgAlpha = backgroundColor & 0xFF000000;
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}
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mBackgroundColor.setValue(bgColor);
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mBackgroundOpacity.setValue(bgAlpha | 0xFFFFFF);
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final String rawTypeface = attrs.mRawTypeface;
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mTypeface.setValue(rawTypeface == null ? "" : rawTypeface);
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final String rawLocale = mCaptioningManager.getRawLocale();
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mLocale.setValue(rawLocale == null ? "" : rawLocale);
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}
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private void refreshShowingCustom() {
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final boolean customPreset = mPreset.getValue() == CaptionStyle.PRESET_CUSTOM;
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if (!customPreset && mShowingCustom) {
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getPreferenceScreen().removePreference(mCustom);
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mShowingCustom = false;
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} else if (customPreset && !mShowingCustom) {
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getPreferenceScreen().addPreference(mCustom);
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mShowingCustom = true;
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}
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}
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@Override
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public void onValueChanged(ListDialogPreference preference, int value) {
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final ContentResolver cr = getActivity().getContentResolver();
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if (mForegroundColor == preference) {
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Settings.Secure.putInt(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR, value);
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} else if (mBackgroundColor == preference || mBackgroundOpacity == preference) {
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final int bgColor = mBackgroundColor.getValue();
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final int bgAlpha = mBackgroundOpacity.getValue();
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final int argb;
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if (Color.alpha(bgColor) == 0) {
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argb = Color.alpha(bgAlpha);
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} else {
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argb = bgColor & 0x00FFFFFF | bgAlpha & 0xFF000000;
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}
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Settings.Secure.putInt(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR, argb);
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} else if (mEdgeColor == preference) {
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Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_EDGE_COLOR, value);
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} else if (mPreset == preference) {
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Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_PRESET, value);
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refreshShowingCustom();
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} else if (mEdgeType == preference) {
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Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_EDGE_TYPE, value);
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}
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refreshPreviewText();
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object value) {
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final ContentResolver cr = getActivity().getContentResolver();
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if (mTypeface == preference) {
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Settings.Secure.putString(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_TYPEFACE, (String) value);
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} else if (mFontSize == preference) {
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Settings.Secure.putFloat(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_FONT_SCALE,
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Float.parseFloat((String) value));
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} else if (mLocale == preference) {
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Settings.Secure.putString(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_LOCALE, (String) value);
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}
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refreshPreviewText();
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return true;
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}
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}
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