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/*
* Copyright (C) 2017 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.launcher3.allapps.search;
import android.content.Context;
import android.graphics.Rect;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.text.Selection;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.SpannableStringBuilder;
import android.text.method.TextKeyListener;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.View;
import android.widget.FrameLayout;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.ExtendedEditText;
import com.android.launcher3.Launcher;
import com.android.launcher3.R;
import com.android.launcher3.allapps.AllAppsGridAdapter;
import com.android.launcher3.allapps.AllAppsRecyclerView;
import com.android.launcher3.allapps.AlphabeticalAppsList;
import com.android.launcher3.allapps.SearchUiManager;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.discovery.AppDiscoveryItem;
import com.android.launcher3.discovery.AppDiscoveryUpdateState;
import com.android.launcher3.graphics.TintedDrawableSpan;
import com.android.launcher3.util.ComponentKey;
import java.util.ArrayList;
/**
* Layout to contain the All-apps search UI.
*/
public class AppsSearchContainerLayout extends FrameLayout
implements SearchUiManager, AllAppsSearchBarController.Callbacks {
private final Launcher mLauncher;
private final int mMinHeight;
private final int mSearchBoxHeight;
private final AllAppsSearchBarController mSearchBarController;
private final SpannableStringBuilder mSearchQueryBuilder;
private ExtendedEditText mSearchInput;
private AlphabeticalAppsList mApps;
private AllAppsRecyclerView mAppsRecyclerView;
private AllAppsGridAdapter mAdapter;
private View mDivider;
private HeaderElevationController mElevationController;
public AppsSearchContainerLayout(Context context) {
this(context, null);
}
public AppsSearchContainerLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public AppsSearchContainerLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mLauncher = Launcher.getLauncher(context);
mMinHeight = getResources().getDimensionPixelSize(R.dimen.all_apps_search_bar_height);
mSearchBoxHeight = getResources()
.getDimensionPixelSize(R.dimen.all_apps_search_bar_field_height);
mSearchBarController = new AllAppsSearchBarController();
mSearchQueryBuilder = new SpannableStringBuilder();
Selection.setSelection(mSearchQueryBuilder, 0);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mSearchInput = findViewById(R.id.search_box_input);
mDivider = findViewById(R.id.search_divider);
mElevationController = new HeaderElevationController(mDivider);
// Update the hint to contain the icon.
// Prefix the original hint with two spaces. The first space gets replaced by the icon
// using span. The second space is used for a singe space character between the hint
// and the icon.
SpannableString spanned = new SpannableString(" " + mSearchInput.getHint());
spanned.setSpan(new TintedDrawableSpan(getContext(), R.drawable.ic_allapps_search),
0, 1, Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
mSearchInput.setHint(spanned);
DeviceProfile dp = mLauncher.getDeviceProfile();
if (!dp.isVerticalBarLayout()) {
LayoutParams lp = (LayoutParams) mDivider.getLayoutParams();
lp.leftMargin = lp.rightMargin = dp.edgeMarginPx;
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (!mLauncher.getDeviceProfile().isVerticalBarLayout()) {
getLayoutParams().height = mLauncher.getDragLayer().getInsets().top + mMinHeight;
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
public void initialize(
AlphabeticalAppsList appsList, AllAppsRecyclerView recyclerView) {
mApps = appsList;
mAppsRecyclerView = recyclerView;
mAppsRecyclerView.addOnScrollListener(mElevationController);
mAdapter = (AllAppsGridAdapter) mAppsRecyclerView.getAdapter();
mSearchBarController.initialize(
new DefaultAppSearchAlgorithm(appsList.getApps()), mSearchInput, mLauncher, this);
}
@Override
public void refreshSearchResult() {
mSearchBarController.refreshSearchResult();
}
@Override
public void reset() {
mElevationController.reset();
mSearchBarController.reset();
}
@Override
public void preDispatchKeyEvent(KeyEvent event) {
// Determine if the key event was actual text, if so, focus the search bar and then dispatch
// the key normally so that it can process this key event
if (!mSearchBarController.isSearchFieldFocused() &&
event.getAction() == KeyEvent.ACTION_DOWN) {
final int unicodeChar = event.getUnicodeChar();
final boolean isKeyNotWhitespace = unicodeChar > 0 &&
!Character.isWhitespace(unicodeChar) && !Character.isSpaceChar(unicodeChar);
if (isKeyNotWhitespace) {
boolean gotKey = TextKeyListener.getInstance().onKeyDown(this, mSearchQueryBuilder,
event.getKeyCode(), event);
if (gotKey && mSearchQueryBuilder.length() > 0) {
mSearchBarController.focusSearchField();
}
}
}
}
@Override
public void onSearchResult(String query, ArrayList<ComponentKey> apps) {
if (apps != null) {
mApps.setOrderedFilter(apps);
notifyResultChanged();
mAdapter.setLastSearchQuery(query);
}
}
@Override
public void clearSearchResult() {
if (mApps.setOrderedFilter(null)) {
notifyResultChanged();
}
// Clear the search query
mSearchQueryBuilder.clear();
mSearchQueryBuilder.clearSpans();
Selection.setSelection(mSearchQueryBuilder, 0);
}
@Override
public void onAppDiscoverySearchUpdate(
@Nullable AppDiscoveryItem app, @NonNull AppDiscoveryUpdateState state) {
if (!mLauncher.isDestroyed()) {
mApps.onAppDiscoverySearchUpdate(app, state);
notifyResultChanged();
}
}
private void notifyResultChanged() {
mElevationController.reset();
mAppsRecyclerView.onSearchResultsChanged();
}
@Override
public void addOnScrollRangeChangeListener(final OnScrollRangeChangeListener listener) {
mLauncher.getHotseat().addOnLayoutChangeListener(new OnLayoutChangeListener() {
@Override
public void onLayoutChange(View v, int left, int top, int right, int bottom,
int oldLeft, int oldTop, int oldRight, int oldBottom) {
DeviceProfile dp = mLauncher.getDeviceProfile();
if (!dp.isVerticalBarLayout()) {
Rect insets = mLauncher.getDragLayer().getInsets();
int hotseatBottom = bottom - dp.hotseatBarBottomPaddingPx - insets.bottom;
int searchTopMargin = insets.top + (mMinHeight - mSearchBoxHeight)
+ ((MarginLayoutParams) getLayoutParams()).bottomMargin;
listener.onScrollRangeChanged(hotseatBottom - searchTopMargin);
} else {
listener.onScrollRangeChanged(bottom);
}
}
});
}
}
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