/*
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* Copyright (C) 2017 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.keyguard;
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import android.content.Context;
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import android.text.TextUtils;
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import android.view.View;
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import android.view.accessibility.AccessibilityEvent;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.widget.TextView;
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/**
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* Replaces fancy colons with regular colons. Only works on TextViews.
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*/
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class KeyguardClockAccessibilityDelegate extends View.AccessibilityDelegate {
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private final String mFancyColon;
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public KeyguardClockAccessibilityDelegate(Context context) {
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mFancyColon = context.getString(R.string.keyguard_fancy_colon);
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}
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@Override
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public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
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super.onInitializeAccessibilityEvent(host, event);
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if (TextUtils.isEmpty(mFancyColon)) {
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return;
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}
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CharSequence text = event.getContentDescription();
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if (!TextUtils.isEmpty(text)) {
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event.setContentDescription(replaceFancyColon(text));
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}
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}
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@Override
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public void onPopulateAccessibilityEvent(View host, AccessibilityEvent event) {
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if (TextUtils.isEmpty(mFancyColon)) {
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super.onPopulateAccessibilityEvent(host, event);
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} else {
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CharSequence text = ((TextView) host).getText();
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if (!TextUtils.isEmpty(text)) {
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event.getText().add(replaceFancyColon(text));
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}
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}
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}
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@Override
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public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
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super.onInitializeAccessibilityNodeInfo(host, info);
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if (TextUtils.isEmpty(mFancyColon)) {
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return;
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}
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if (!TextUtils.isEmpty(info.getText())) {
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info.setText(replaceFancyColon(info.getText()));
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}
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if (!TextUtils.isEmpty(info.getContentDescription())) {
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info.setContentDescription(replaceFancyColon(info.getContentDescription()));
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}
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}
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private CharSequence replaceFancyColon(CharSequence text) {
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if (TextUtils.isEmpty(mFancyColon)) {
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return text;
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}
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return text.toString().replace(mFancyColon, ":");
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}
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public static boolean isNeeded(Context context) {
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return !TextUtils.isEmpty(context.getString(R.string.keyguard_fancy_colon));
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}
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}
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