| /* |
| * 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.InsetsState.ITYPE_CAPTION_BAR; |
| import static android.view.InsetsState.ITYPE_IME; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.graphics.Insets; |
| import android.graphics.Rect; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.view.InsetsState.InternalInsetsType; |
| |
| import java.io.PrintWriter; |
| import java.util.Objects; |
| |
| /** |
| * Represents the state of a single window generating insets for clients. |
| * @hide |
| */ |
| public class InsetsSource implements Parcelable { |
| |
| private final @InternalInsetsType int mType; |
| |
| /** Frame of the source in screen coordinate space */ |
| private final Rect mFrame; |
| private @Nullable Rect mVisibleFrame; |
| private boolean mVisible; |
| |
| private final Rect mTmpFrame = new Rect(); |
| |
| public InsetsSource(@InternalInsetsType int type) { |
| mType = type; |
| mFrame = new Rect(); |
| mVisible = InsetsState.getDefaultVisibility(type); |
| } |
| |
| public InsetsSource(InsetsSource other) { |
| mType = other.mType; |
| mFrame = new Rect(other.mFrame); |
| mVisible = other.mVisible; |
| mVisibleFrame = other.mVisibleFrame != null |
| ? new Rect(other.mVisibleFrame) |
| : null; |
| } |
| |
| public void setFrame(int left, int top, int right, int bottom) { |
| mFrame.set(left, top, right, bottom); |
| } |
| |
| public void setFrame(Rect frame) { |
| mFrame.set(frame); |
| } |
| |
| public void setVisibleFrame(@Nullable Rect visibleFrame) { |
| mVisibleFrame = visibleFrame != null ? new Rect(visibleFrame) : visibleFrame; |
| } |
| |
| public void setVisible(boolean visible) { |
| mVisible = visible; |
| } |
| |
| public @InternalInsetsType int getType() { |
| return mType; |
| } |
| |
| public Rect getFrame() { |
| return mFrame; |
| } |
| |
| public @Nullable Rect getVisibleFrame() { |
| return mVisibleFrame; |
| } |
| |
| public boolean isVisible() { |
| return mVisible; |
| } |
| |
| /** |
| * Calculates the insets this source will cause to a client window. |
| * |
| * @param relativeFrame The frame to calculate the insets relative to. |
| * @param ignoreVisibility If true, always reports back insets even if source isn't visible. |
| * @return The resulting insets. The contract is that only one side will be occupied by a |
| * source. |
| */ |
| public Insets calculateInsets(Rect relativeFrame, boolean ignoreVisibility) { |
| return calculateInsets(relativeFrame, mFrame, ignoreVisibility); |
| } |
| |
| /** |
| * Like {@link #calculateInsets(Rect, boolean)}, but will return visible insets. |
| */ |
| public Insets calculateVisibleInsets(Rect relativeFrame) { |
| return calculateInsets(relativeFrame, mVisibleFrame != null ? mVisibleFrame : mFrame, |
| false /* ignoreVisibility */); |
| } |
| |
| private Insets calculateInsets(Rect relativeFrame, Rect frame, boolean ignoreVisibility) { |
| if (!ignoreVisibility && !mVisible) { |
| return Insets.NONE; |
| } |
| if (!getIntersection(frame, relativeFrame, mTmpFrame)) { |
| return Insets.NONE; |
| } |
| // During drag-move and drag-resizing, the caption insets position may not get updated |
| // before the app frame get updated. To layout the app content correctly during drag events, |
| // we always return the insets with the corresponding height covering the top. |
| if (getType() == ITYPE_CAPTION_BAR) { |
| return Insets.of(0, frame.height(), 0, 0); |
| } |
| |
| // TODO: Currently, non-floating IME always intersects at bottom due to issues with cutout. |
| // However, we should let the policy decide from the server. |
| if (getType() == ITYPE_IME) { |
| return Insets.of(0, 0, 0, mTmpFrame.height()); |
| } |
| |
| // Intersecting at top/bottom |
| if (mTmpFrame.width() == relativeFrame.width()) { |
| if (mTmpFrame.top == relativeFrame.top) { |
| return Insets.of(0, mTmpFrame.height(), 0, 0); |
| } else { |
| return Insets.of(0, 0, 0, mTmpFrame.height()); |
| } |
| } |
| // Intersecting at left/right |
| else if (mTmpFrame.height() == relativeFrame.height()) { |
| if (mTmpFrame.left == relativeFrame.left) { |
| return Insets.of(mTmpFrame.width(), 0, 0, 0); |
| } else { |
| return Insets.of(0, 0, mTmpFrame.width(), 0); |
| } |
| } else { |
| return Insets.NONE; |
| } |
| } |
| |
| /** |
| * Outputs the intersection of two rectangles. The shared edges will also be counted in the |
| * intersection. |
| * |
| * @param a The first rectangle being intersected with. |
| * @param b The second rectangle being intersected with. |
| * @param out The rectangle which represents the intersection. |
| * @return {@code true} if there is any intersection. |
| */ |
| private static boolean getIntersection(@NonNull Rect a, @NonNull Rect b, @NonNull Rect out) { |
| if (a.left <= b.right && b.left <= a.right && a.top <= b.bottom && b.top <= a.bottom) { |
| out.left = Math.max(a.left, b.left); |
| out.top = Math.max(a.top, b.top); |
| out.right = Math.min(a.right, b.right); |
| out.bottom = Math.min(a.bottom, b.bottom); |
| return true; |
| } |
| out.setEmpty(); |
| return false; |
| } |
| |
| public void dump(String prefix, PrintWriter pw) { |
| pw.print(prefix); |
| pw.print("InsetsSource type="); pw.print(InsetsState.typeToString(mType)); |
| pw.print(" frame="); pw.print(mFrame.toShortString()); |
| if (mVisibleFrame != null) { |
| pw.print(" visibleFrame="); pw.print(mVisibleFrame.toShortString()); |
| } |
| pw.print(" visible="); pw.print(mVisible); |
| pw.println(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| InsetsSource that = (InsetsSource) o; |
| |
| if (mType != that.mType) return false; |
| if (mVisible != that.mVisible) return false; |
| if (!Objects.equals(mVisibleFrame, that.mVisibleFrame)) return false; |
| return mFrame.equals(that.mFrame); |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = mType; |
| result = 31 * result + mFrame.hashCode(); |
| result = 31 * result + (mVisibleFrame != null ? mVisibleFrame.hashCode() : 0); |
| result = 31 * result + (mVisible ? 1 : 0); |
| return result; |
| } |
| |
| public InsetsSource(Parcel in) { |
| mType = in.readInt(); |
| mFrame = in.readParcelable(null /* loader */); |
| mVisibleFrame = in.readParcelable(null /* loader */); |
| mVisible = in.readBoolean(); |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeInt(mType); |
| dest.writeParcelable(mFrame, 0 /* flags*/); |
| dest.writeParcelable(mVisibleFrame, 0 /* flags */); |
| dest.writeBoolean(mVisible); |
| } |
| |
| @Override |
| public String toString() { |
| return "InsetsSource: {" |
| + "mType=" + InsetsState.typeToString(mType) |
| + ", mFrame=" + mFrame.toShortString() |
| + ", mVisible=" + mVisible |
| + "}"; |
| } |
| |
| public static final @android.annotation.NonNull Creator<InsetsSource> CREATOR = new Creator<InsetsSource>() { |
| |
| public InsetsSource createFromParcel(Parcel in) { |
| return new InsetsSource(in); |
| } |
| |
| public InsetsSource[] newArray(int size) { |
| return new InsetsSource[size]; |
| } |
| }; |
| } |