| /* |
| * Copyright (C) 2014 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 androidx.appcompat.widget; |
| |
| import android.content.Context; |
| import android.os.Build; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.PopupWindow; |
| |
| import androidx.annotation.AttrRes; |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| import androidx.annotation.StyleRes; |
| import androidx.appcompat.R; |
| import androidx.core.widget.PopupWindowCompat; |
| |
| class AppCompatPopupWindow extends PopupWindow { |
| |
| private static final boolean COMPAT_OVERLAP_ANCHOR = Build.VERSION.SDK_INT < 21; |
| |
| private boolean mOverlapAnchor; |
| |
| public AppCompatPopupWindow(@NonNull Context context, @Nullable AttributeSet attrs, |
| @AttrRes int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| init(context, attrs, defStyleAttr, 0); |
| } |
| |
| public AppCompatPopupWindow(@NonNull Context context, @Nullable AttributeSet attrs, |
| @AttrRes int defStyleAttr, @StyleRes int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| init(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| private void init(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| TintTypedArray a = TintTypedArray.obtainStyledAttributes(context, attrs, |
| R.styleable.PopupWindow, defStyleAttr, defStyleRes); |
| if (a.hasValue(R.styleable.PopupWindow_overlapAnchor)) { |
| setSupportOverlapAnchor(a.getBoolean(R.styleable.PopupWindow_overlapAnchor, false)); |
| } |
| // We re-set this for tinting purposes |
| setBackgroundDrawable(a.getDrawable(R.styleable.PopupWindow_android_popupBackground)); |
| |
| a.recycle(); |
| } |
| |
| @Override |
| public void showAsDropDown(View anchor, int xoff, int yoff) { |
| if (COMPAT_OVERLAP_ANCHOR && mOverlapAnchor) { |
| // If we're pre-L, emulate overlapAnchor by modifying the yOff |
| yoff -= anchor.getHeight(); |
| } |
| super.showAsDropDown(anchor, xoff, yoff); |
| } |
| |
| @Override |
| public void showAsDropDown(View anchor, int xoff, int yoff, int gravity) { |
| if (COMPAT_OVERLAP_ANCHOR && mOverlapAnchor) { |
| // If we're pre-L, emulate overlapAnchor by modifying the yOff |
| yoff -= anchor.getHeight(); |
| } |
| super.showAsDropDown(anchor, xoff, yoff, gravity); |
| } |
| |
| @Override |
| public void update(View anchor, int xoff, int yoff, int width, int height) { |
| if (COMPAT_OVERLAP_ANCHOR && mOverlapAnchor) { |
| // If we're pre-L, emulate overlapAnchor by modifying the yOff |
| yoff -= anchor.getHeight(); |
| } |
| super.update(anchor, xoff, yoff, width, height); |
| } |
| |
| private void setSupportOverlapAnchor(boolean overlapAnchor) { |
| if (COMPAT_OVERLAP_ANCHOR) { |
| mOverlapAnchor = overlapAnchor; |
| } else { |
| PopupWindowCompat.setOverlapAnchor(this, overlapAnchor); |
| } |
| } |
| } |