| /* |
| * 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 android.view; |
| |
| import static android.view.ViewRootImpl.NEW_INSETS_MODE_FULL; |
| import static android.view.WindowInsets.Type.SIZE; |
| import static android.view.WindowInsets.Type.indexOf; |
| |
| import android.annotation.IntDef; |
| import android.annotation.Nullable; |
| import android.graphics.Insets; |
| import android.graphics.Rect; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| import android.util.SparseIntArray; |
| import android.view.WindowInsets.Type; |
| import android.view.WindowInsets.Type.InsetType; |
| import android.view.WindowManager.LayoutParams; |
| |
| import java.io.PrintWriter; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.Objects; |
| |
| /** |
| * Holder for state of system windows that cause window insets for all other windows in the system. |
| * @hide |
| */ |
| public class InsetsState implements Parcelable { |
| |
| /** |
| * Internal representation of inset source types. This is different from the public API in |
| * {@link WindowInsets.Type} as one type from the public API might indicate multiple windows |
| * at the same time. |
| */ |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef(prefix = "TYPE", value = { |
| TYPE_TOP_BAR, |
| TYPE_SIDE_BAR_1, |
| TYPE_SIDE_BAR_2, |
| TYPE_SIDE_BAR_3, |
| TYPE_IME |
| }) |
| public @interface InternalInsetType {} |
| |
| static final int FIRST_TYPE = 0; |
| |
| /** Top bar. Can be status bar or caption in freeform windowing mode. */ |
| public static final int TYPE_TOP_BAR = FIRST_TYPE; |
| |
| /** |
| * Up to 3 side bars that appear on left/right/bottom. On phones there is only one side bar |
| * (the navigation bar, see {@link #TYPE_NAVIGATION_BAR}), but other form factors might have |
| * multiple, like Android Auto. |
| */ |
| public static final int TYPE_SIDE_BAR_1 = 1; |
| public static final int TYPE_SIDE_BAR_2 = 2; |
| public static final int TYPE_SIDE_BAR_3 = 3; |
| |
| /** Input method window. */ |
| public static final int TYPE_IME = 4; |
| static final int LAST_TYPE = TYPE_IME; |
| |
| // Derived types |
| |
| /** First side bar is navigation bar. */ |
| public static final int TYPE_NAVIGATION_BAR = TYPE_SIDE_BAR_1; |
| |
| /** A shelf is the same as the navigation bar. */ |
| public static final int TYPE_SHELF = TYPE_NAVIGATION_BAR; |
| |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef(prefix = "INSET_SIDE", value = { |
| INSET_SIDE_LEFT, |
| INSET_SIDE_TOP, |
| INSET_SIDE_RIGHT, |
| INSET_SIDE_BOTTOM, |
| INSET_SIDE_UNKNWON |
| }) |
| public @interface InsetSide {} |
| static final int INSET_SIDE_LEFT = 0; |
| static final int INSET_SIDE_TOP = 1; |
| static final int INSET_SIDE_RIGHT = 2; |
| static final int INSET_SIDE_BOTTOM = 3; |
| static final int INSET_SIDE_UNKNWON = 4; |
| |
| private final ArrayMap<Integer, InsetsSource> mSources = new ArrayMap<>(); |
| |
| /** |
| * The frame of the display these sources are relative to. |
| */ |
| private final Rect mDisplayFrame = new Rect(); |
| |
| public InsetsState() { |
| } |
| |
| public InsetsState(InsetsState copy) { |
| set(copy); |
| } |
| |
| public InsetsState(InsetsState copy, boolean copySources) { |
| set(copy, copySources); |
| } |
| |
| /** |
| * Calculates {@link WindowInsets} based on the current source configuration. |
| * |
| * @param frame The frame to calculate the insets relative to. |
| * @return The calculated insets. |
| */ |
| public WindowInsets calculateInsets(Rect frame, boolean isScreenRound, |
| boolean alwaysConsumeSystemBars, DisplayCutout cutout, |
| @Nullable Rect legacyContentInsets, @Nullable Rect legacyStableInsets, |
| int legacySoftInputMode, @Nullable @InsetSide SparseIntArray typeSideMap) { |
| Insets[] typeInsetsMap = new Insets[Type.SIZE]; |
| Insets[] typeMaxInsetsMap = new Insets[Type.SIZE]; |
| boolean[] typeVisibilityMap = new boolean[SIZE]; |
| final Rect relativeFrame = new Rect(frame); |
| final Rect relativeFrameMax = new Rect(frame); |
| if (ViewRootImpl.sNewInsetsMode != NEW_INSETS_MODE_FULL |
| && legacyContentInsets != null && legacyStableInsets != null) { |
| WindowInsets.assignCompatInsets(typeInsetsMap, legacyContentInsets); |
| WindowInsets.assignCompatInsets(typeMaxInsetsMap, legacyStableInsets); |
| |
| // TODO: set system gesture insets based on actual system gesture area. |
| typeInsetsMap[Type.indexOf(Type.systemGestures())] = Insets.of(legacyContentInsets); |
| typeInsetsMap[Type.indexOf(Type.mandatorySystemGestures())] = |
| Insets.of(legacyContentInsets); |
| typeInsetsMap[Type.indexOf(Type.tappableElement())] = Insets.of(legacyContentInsets); |
| |
| typeMaxInsetsMap[Type.indexOf(Type.systemGestures())] = Insets.of(legacyStableInsets); |
| typeMaxInsetsMap[Type.indexOf(Type.mandatorySystemGestures())] = |
| Insets.of(legacyStableInsets); |
| typeMaxInsetsMap[Type.indexOf(Type.tappableElement())] = Insets.of(legacyStableInsets); |
| } |
| for (int type = FIRST_TYPE; type <= LAST_TYPE; type++) { |
| InsetsSource source = mSources.get(type); |
| if (source == null) { |
| continue; |
| } |
| |
| boolean skipSystemBars = ViewRootImpl.sNewInsetsMode != NEW_INSETS_MODE_FULL |
| && (type == TYPE_TOP_BAR || type == TYPE_NAVIGATION_BAR); |
| boolean skipIme = source.getType() == TYPE_IME |
| && (legacySoftInputMode & LayoutParams.SOFT_INPUT_ADJUST_RESIZE) == 0; |
| if (skipSystemBars || skipIme) { |
| typeVisibilityMap[indexOf(toPublicType(type))] = source.isVisible(); |
| continue; |
| } |
| |
| processSource(source, relativeFrame, false /* ignoreVisibility */, typeInsetsMap, |
| typeSideMap, typeVisibilityMap); |
| |
| // IME won't be reported in max insets as the size depends on the EditorInfo of the IME |
| // target. |
| if (source.getType() != TYPE_IME) { |
| processSource(source, relativeFrameMax, true /* ignoreVisibility */, |
| typeMaxInsetsMap, null /* typeSideMap */, null /* typeVisibilityMap */); |
| } |
| } |
| return new WindowInsets(typeInsetsMap, typeMaxInsetsMap, typeVisibilityMap, isScreenRound, |
| alwaysConsumeSystemBars, cutout); |
| } |
| |
| private void processSource(InsetsSource source, Rect relativeFrame, boolean ignoreVisibility, |
| Insets[] typeInsetsMap, @Nullable @InsetSide SparseIntArray typeSideMap, |
| @Nullable boolean[] typeVisibilityMap) { |
| Insets insets = source.calculateInsets(relativeFrame, ignoreVisibility); |
| |
| int index = indexOf(toPublicType(source.getType())); |
| Insets existing = typeInsetsMap[index]; |
| if (existing == null) { |
| typeInsetsMap[index] = insets; |
| } else { |
| typeInsetsMap[index] = Insets.max(existing, insets); |
| } |
| |
| if (typeVisibilityMap != null) { |
| typeVisibilityMap[index] = source.isVisible(); |
| } |
| |
| if (typeSideMap != null && !Insets.NONE.equals(insets)) { |
| @InsetSide int insetSide = getInsetSide(insets); |
| if (insetSide != INSET_SIDE_UNKNWON) { |
| typeSideMap.put(source.getType(), getInsetSide(insets)); |
| } |
| } |
| } |
| |
| /** |
| * Retrieves the side for a certain {@code insets}. It is required that only one field l/t/r/b |
| * is set in order that this method returns a meaningful result. |
| */ |
| private @InsetSide int getInsetSide(Insets insets) { |
| if (insets.left != 0) { |
| return INSET_SIDE_LEFT; |
| } |
| if (insets.top != 0) { |
| return INSET_SIDE_TOP; |
| } |
| if (insets.right != 0) { |
| return INSET_SIDE_RIGHT; |
| } |
| if (insets.bottom != 0) { |
| return INSET_SIDE_BOTTOM; |
| } |
| return INSET_SIDE_UNKNWON; |
| } |
| |
| public InsetsSource getSource(@InternalInsetType int type) { |
| return mSources.computeIfAbsent(type, InsetsSource::new); |
| } |
| |
| public void setDisplayFrame(Rect frame) { |
| mDisplayFrame.set(frame); |
| } |
| |
| public Rect getDisplayFrame() { |
| return mDisplayFrame; |
| } |
| |
| /** |
| * Modifies the state of this class to exclude a certain type to make it ready for dispatching |
| * to the client. |
| * |
| * @param type The {@link InternalInsetType} of the source to remove |
| */ |
| public void removeSource(int type) { |
| mSources.remove(type); |
| } |
| |
| public void set(InsetsState other) { |
| set(other, false /* copySources */); |
| } |
| |
| public void set(InsetsState other, boolean copySources) { |
| mDisplayFrame.set(other.mDisplayFrame); |
| mSources.clear(); |
| if (copySources) { |
| for (int i = 0; i < other.mSources.size(); i++) { |
| InsetsSource source = other.mSources.valueAt(i); |
| mSources.put(source.getType(), new InsetsSource(source)); |
| } |
| } else { |
| mSources.putAll(other.mSources); |
| } |
| } |
| |
| public void addSource(InsetsSource source) { |
| mSources.put(source.getType(), source); |
| } |
| |
| public int getSourcesCount() { |
| return mSources.size(); |
| } |
| |
| public InsetsSource sourceAt(int index) { |
| return mSources.valueAt(index); |
| } |
| |
| public static @InternalInsetType ArraySet<Integer> toInternalType(@InsetType int insetTypes) { |
| final ArraySet<Integer> result = new ArraySet<>(); |
| if ((insetTypes & Type.TOP_BAR) != 0) { |
| result.add(TYPE_TOP_BAR); |
| } |
| if ((insetTypes & Type.SIDE_BARS) != 0) { |
| result.add(TYPE_SIDE_BAR_1); |
| result.add(TYPE_SIDE_BAR_2); |
| result.add(TYPE_SIDE_BAR_3); |
| } |
| if ((insetTypes & Type.IME) != 0) { |
| result.add(TYPE_IME); |
| } |
| return result; |
| } |
| |
| static @InsetType int toPublicType(@InternalInsetType int type) { |
| switch (type) { |
| case TYPE_TOP_BAR: |
| return Type.TOP_BAR; |
| case TYPE_SIDE_BAR_1: |
| case TYPE_SIDE_BAR_2: |
| case TYPE_SIDE_BAR_3: |
| return Type.SIDE_BARS; |
| case TYPE_IME: |
| return Type.IME; |
| default: |
| throw new IllegalArgumentException("Unknown type: " + type); |
| } |
| } |
| |
| public static boolean getDefaultVisibility(@InsetType int type) { |
| switch (type) { |
| case TYPE_TOP_BAR: |
| case TYPE_SIDE_BAR_1: |
| case TYPE_SIDE_BAR_2: |
| case TYPE_SIDE_BAR_3: |
| return true; |
| case TYPE_IME: |
| return false; |
| default: |
| return true; |
| } |
| } |
| |
| public void dump(String prefix, PrintWriter pw) { |
| pw.println(prefix + "InsetsState"); |
| for (int i = mSources.size() - 1; i >= 0; i--) { |
| mSources.valueAt(i).dump(prefix + " ", pw); |
| } |
| } |
| |
| public static String typeToString(int type) { |
| switch (type) { |
| case TYPE_TOP_BAR: |
| return "TYPE_TOP_BAR"; |
| case TYPE_SIDE_BAR_1: |
| return "TYPE_SIDE_BAR_1"; |
| case TYPE_SIDE_BAR_2: |
| return "TYPE_SIDE_BAR_2"; |
| case TYPE_SIDE_BAR_3: |
| return "TYPE_SIDE_BAR_3"; |
| case TYPE_IME: |
| return "TYPE_IME"; |
| default: |
| return "TYPE_UNKNOWN"; |
| } |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { return true; } |
| if (o == null || getClass() != o.getClass()) { return false; } |
| |
| InsetsState state = (InsetsState) o; |
| |
| if (!mDisplayFrame.equals(state.mDisplayFrame)) { |
| return false; |
| } |
| if (mSources.size() != state.mSources.size()) { |
| return false; |
| } |
| for (int i = mSources.size() - 1; i >= 0; i--) { |
| InsetsSource source = mSources.valueAt(i); |
| InsetsSource otherSource = state.mSources.get(source.getType()); |
| if (otherSource == null) { |
| return false; |
| } |
| if (!otherSource.equals(source)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(mDisplayFrame, mSources); |
| } |
| |
| public InsetsState(Parcel in) { |
| readFromParcel(in); |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeParcelable(mDisplayFrame, flags); |
| dest.writeInt(mSources.size()); |
| for (int i = 0; i < mSources.size(); i++) { |
| dest.writeParcelable(mSources.valueAt(i), flags); |
| } |
| } |
| |
| public static final @android.annotation.NonNull Creator<InsetsState> CREATOR = new Creator<InsetsState>() { |
| |
| public InsetsState createFromParcel(Parcel in) { |
| return new InsetsState(in); |
| } |
| |
| public InsetsState[] newArray(int size) { |
| return new InsetsState[size]; |
| } |
| }; |
| |
| public void readFromParcel(Parcel in) { |
| mSources.clear(); |
| mDisplayFrame.set(in.readParcelable(null /* loader */)); |
| final int size = in.readInt(); |
| for (int i = 0; i < size; i++) { |
| final InsetsSource source = in.readParcelable(null /* loader */); |
| mSources.put(source.getType(), source); |
| } |
| } |
| } |
| |