| /* |
| * 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; |
| |
| import android.content.Context; |
| import android.content.SharedPreferences; |
| import android.graphics.Canvas; |
| import android.graphics.Paint; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.Button; |
| import android.widget.LinearLayout; |
| |
| import com.android.launcher3.Launcher; |
| import com.android.launcher3.R; |
| import com.android.launcher3.Utilities; |
| import com.android.launcher3.pageindicators.PageIndicator; |
| import com.android.launcher3.util.Themes; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| |
| /** |
| * Supports two indicator colors, dedicated for personal and work tabs. |
| */ |
| public class PersonalWorkSlidingTabStrip extends LinearLayout implements PageIndicator { |
| private static final int POSITION_PERSONAL = 0; |
| private static final int POSITION_WORK = 1; |
| |
| public static final String KEY_SHOWED_PEEK_WORK_TAB = "showed_peek_work_tab"; |
| |
| private final Paint mSelectedIndicatorPaint; |
| private final Paint mDividerPaint; |
| private final SharedPreferences mSharedPreferences; |
| |
| private int mSelectedIndicatorHeight; |
| private int mIndicatorLeft = -1; |
| private int mIndicatorRight = -1; |
| private float mScrollOffset; |
| private int mSelectedPosition = 0; |
| |
| private AllAppsContainerView mContainerView; |
| private int mLastActivePage = 0; |
| private boolean mIsRtl; |
| |
| public PersonalWorkSlidingTabStrip(@NonNull Context context, @Nullable AttributeSet attrs) { |
| super(context, attrs); |
| setOrientation(HORIZONTAL); |
| setWillNotDraw(false); |
| |
| mSelectedIndicatorHeight = |
| getResources().getDimensionPixelSize(R.dimen.all_apps_tabs_indicator_height); |
| |
| mSelectedIndicatorPaint = new Paint(); |
| mSelectedIndicatorPaint.setColor( |
| Themes.getAttrColor(context, android.R.attr.colorAccent)); |
| |
| mDividerPaint = new Paint(); |
| mDividerPaint.setColor(Themes.getAttrColor(context, android.R.attr.colorControlHighlight)); |
| mDividerPaint.setStrokeWidth( |
| getResources().getDimensionPixelSize(R.dimen.all_apps_divider_height)); |
| |
| mSharedPreferences = Launcher.getLauncher(getContext()).getSharedPrefs(); |
| mIsRtl = Utilities.isRtl(getResources()); |
| } |
| |
| private void updateIndicatorPosition(float scrollOffset) { |
| mScrollOffset = scrollOffset; |
| updateIndicatorPosition(); |
| } |
| |
| private void updateTabTextColor(int pos) { |
| mSelectedPosition = pos; |
| for (int i = 0; i < getChildCount(); i++) { |
| Button tab = (Button) getChildAt(i); |
| tab.setSelected(i == pos); |
| } |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int l, int t, int r, int b) { |
| super.onLayout(changed, l, t, r, b); |
| updateTabTextColor(mSelectedPosition); |
| updateIndicatorPosition(mScrollOffset); |
| } |
| |
| private void updateIndicatorPosition() { |
| int left = -1, right = -1; |
| final View leftTab = getLeftTab(); |
| if (leftTab != null) { |
| left = (int) (leftTab.getLeft() + leftTab.getWidth() * mScrollOffset); |
| right = left + leftTab.getWidth(); |
| } |
| setIndicatorPosition(left, right); |
| } |
| |
| private View getLeftTab() { |
| return mIsRtl ? getChildAt(1) : getChildAt(0); |
| } |
| |
| private void setIndicatorPosition(int left, int right) { |
| if (left != mIndicatorLeft || right != mIndicatorRight) { |
| mIndicatorLeft = left; |
| mIndicatorRight = right; |
| invalidate(); |
| } |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| |
| float y = getHeight() - mDividerPaint.getStrokeWidth(); |
| canvas.drawLine(getPaddingLeft(), y, getWidth() - getPaddingRight(), y, mDividerPaint); |
| canvas.drawRect(mIndicatorLeft, getHeight() - mSelectedIndicatorHeight, |
| mIndicatorRight, getHeight(), mSelectedIndicatorPaint); |
| } |
| |
| public void highlightWorkTabIfNecessary() { |
| if (mSharedPreferences.getBoolean(KEY_SHOWED_PEEK_WORK_TAB, false)) { |
| return; |
| } |
| if (mLastActivePage != POSITION_PERSONAL) { |
| return; |
| } |
| highlightWorkTab(); |
| mSharedPreferences.edit().putBoolean(KEY_SHOWED_PEEK_WORK_TAB, true).apply(); |
| } |
| |
| private void highlightWorkTab() { |
| View v = getChildAt(POSITION_WORK); |
| v.post(() -> { |
| v.setPressed(true); |
| v.setPressed(false); |
| }); |
| } |
| |
| @Override |
| public void setScroll(int currentScroll, int totalScroll) { |
| float scrollOffset = ((float) currentScroll) / totalScroll; |
| updateIndicatorPosition(scrollOffset); |
| } |
| |
| @Override |
| public void setActiveMarker(int activePage) { |
| updateTabTextColor(activePage); |
| if (mContainerView != null && mLastActivePage != activePage) { |
| mContainerView.onTabChanged(activePage); |
| } |
| mLastActivePage = activePage; |
| } |
| |
| public void setContainerView(AllAppsContainerView containerView) { |
| mContainerView = containerView; |
| } |
| |
| @Override |
| public void setMarkersCount(int numMarkers) { } |
| |
| @Override |
| public boolean hasOverlappingRendering() { |
| return false; |
| } |
| } |