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/*
* Copyright (C) 2018 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.dialer.main.impl.toolbar;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.annotation.StringRes;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.View;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.TextView;
import com.android.dialer.animation.AnimUtils;
import com.android.dialer.common.UiUtil;
import com.android.dialer.util.DialerUtils;
import com.google.common.base.Optional;
/** Search bar for {@link MainToolbar}. Mostly used to handle expand and collapse animation. */
final class SearchBarView extends FrameLayout {
private static final int ANIMATION_DURATION = 200;
private static final float EXPAND_MARGIN_FRACTION_START = 0.8f;
private final float margin;
private final float animationEndHeight;
private final float animationStartHeight;
private SearchBarListener listener;
private EditText searchBox;
private TextView searchBoxTextView;
// This useful for when the query didn't actually change. We want to avoid making excessive calls
// where we can since IPCs can take a long time on slow networks.
private boolean skipLatestTextChange;
private boolean isExpanded;
private View searchBoxCollapsed;
private View searchBoxExpanded;
private View clearButton;
public SearchBarView(@NonNull Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
margin = getContext().getResources().getDimension(R.dimen.search_bar_margin);
animationEndHeight =
getContext().getResources().getDimension(R.dimen.expanded_search_bar_height);
animationStartHeight =
getContext().getResources().getDimension(R.dimen.collapsed_search_bar_height);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
clearButton = findViewById(R.id.search_clear_button);
searchBox = findViewById(R.id.search_view);
searchBoxTextView = findViewById(R.id.search_box_start_search);
searchBoxCollapsed = findViewById(R.id.search_box_collapsed);
searchBoxExpanded = findViewById(R.id.search_box_expanded);
setOnClickListener(v -> listener.onSearchBarClicked());
findViewById(R.id.voice_search_button).setOnClickListener(v -> voiceSearchClicked());
findViewById(R.id.search_back_button).setOnClickListener(v -> onSearchBackButtonClicked());
clearButton.setOnClickListener(v -> onSearchClearButtonClicked());
searchBox.addTextChangedListener(new SearchBoxTextWatcher());
}
private void onSearchClearButtonClicked() {
searchBox.setText("");
}
private void onSearchBackButtonClicked() {
if (!isExpanded) {
return;
}
listener.onSearchBackButtonClicked();
collapse(true);
}
private void voiceSearchClicked() {
listener.onVoiceButtonClicked(
result -> {
if (!TextUtils.isEmpty(result)) {
expand(true, Optional.of(result));
}
});
}
/** Expand the search bar and populate it with text if any exists. */
/* package-private */ void expand(boolean animate, Optional<String> text) {
if (isExpanded) {
return;
}
int duration = animate ? ANIMATION_DURATION : 0;
searchBoxExpanded.setVisibility(VISIBLE);
AnimUtils.crossFadeViews(searchBoxExpanded, searchBoxCollapsed, duration);
ValueAnimator animator = ValueAnimator.ofFloat(EXPAND_MARGIN_FRACTION_START, 0f);
animator.addUpdateListener(animation -> setMargins((Float) animation.getAnimatedValue()));
animator.setDuration(duration);
animator.addListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animation) {
super.onAnimationStart(animation);
DialerUtils.showInputMethod(searchBox);
isExpanded = true;
}
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
if (text.isPresent()) {
searchBox.setText(text.get());
}
searchBox.requestFocus();
setBackgroundResource(R.drawable.search_bar_background);
}
});
animator.start();
}
/** Collapse the search bar and clear it's text. */
/* package-private */ void collapse(boolean animate) {
if (!isExpanded) {
return;
}
int duration = animate ? ANIMATION_DURATION : 0;
AnimUtils.crossFadeViews(searchBoxCollapsed, searchBoxExpanded, duration);
ValueAnimator animator = ValueAnimator.ofFloat(0f, EXPAND_MARGIN_FRACTION_START);
animator.addUpdateListener(animation -> setMargins((Float) animation.getAnimatedValue()));
animator.setDuration(duration);
animator.addListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animation) {
super.onAnimationStart(animation);
DialerUtils.hideInputMethod(searchBox);
isExpanded = false;
}
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
searchBox.setText("");
searchBoxExpanded.setVisibility(INVISIBLE);
setBackgroundResource(R.drawable.search_bar_background_rounded_corners);
}
});
animator.start();
}
/**
* Assigns margins to the search box as a fraction of its maximum margin size
*
* @param fraction How large the margins should be as a fraction of their full size
*/
private void setMargins(float fraction) {
int margin = (int) (this.margin * fraction);
MarginLayoutParams params = (MarginLayoutParams) getLayoutParams();
params.topMargin = margin;
params.bottomMargin = margin;
params.leftMargin = margin;
params.rightMargin = margin;
searchBoxExpanded.getLayoutParams().height =
(int) (animationEndHeight - (animationEndHeight - animationStartHeight) * fraction);
requestLayout();
}
/* package-private */ void setSearchBarListener(SearchBarListener listener) {
this.listener = listener;
}
public String getQuery() {
return searchBox.getText().toString();
}
public boolean isExpanded() {
return isExpanded;
}
public void setQueryWithoutUpdate(String query) {
skipLatestTextChange = true;
searchBox.setText(query);
searchBox.setSelection(searchBox.getText().length());
}
public void hideKeyboard() {
UiUtil.hideKeyboardFrom(getContext(), searchBox);
}
public void showKeyboard() {
UiUtil.openKeyboardFrom(getContext(), searchBox);
}
public void setHint(@StringRes int hint) {
searchBox.setHint(hint);
searchBoxTextView.setText(hint);
}
/** Handles logic for text changes in the search box. */
private class SearchBoxTextWatcher implements TextWatcher {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {}
@Override
public void afterTextChanged(Editable s) {
clearButton.setVisibility(TextUtils.isEmpty(s) ? GONE : VISIBLE);
if (skipLatestTextChange) {
skipLatestTextChange = false;
return;
}
listener.onSearchQueryUpdated(s.toString());
}
}
}
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