| /* |
| * 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.service.autofill; |
| |
| import static android.view.autofill.Helper.sDebug; |
| import static android.view.autofill.Helper.sVerbose; |
| |
| import android.annotation.IdRes; |
| import android.annotation.NonNull; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.Slog; |
| import android.util.SparseIntArray; |
| import android.view.View; |
| import android.view.View.Visibility; |
| import android.view.ViewGroup; |
| import android.widget.RemoteViews; |
| |
| import com.android.internal.util.Preconditions; |
| |
| /** |
| * Action used to change the visibility of other child view in a {@link CustomDescription} |
| * {@link RemoteViews presentation template}. |
| * |
| * <p>See {@link CustomDescription.Builder#addOnClickAction(int, OnClickAction)} for more details. |
| */ |
| public final class VisibilitySetterAction extends InternalOnClickAction implements |
| OnClickAction, Parcelable { |
| private static final String TAG = "VisibilitySetterAction"; |
| |
| @NonNull private final SparseIntArray mVisibilities; |
| |
| private VisibilitySetterAction(@NonNull Builder builder) { |
| mVisibilities = builder.mVisibilities; |
| } |
| |
| /** @hide */ |
| @Override |
| public void onClick(@NonNull ViewGroup rootView) { |
| for (int i = 0; i < mVisibilities.size(); i++) { |
| final int id = mVisibilities.keyAt(i); |
| final View child = rootView.findViewById(id); |
| if (child == null) { |
| Slog.w(TAG, "Skipping view id " + id + " because it's not found on " + rootView); |
| continue; |
| } |
| final int visibility = mVisibilities.valueAt(i); |
| if (sVerbose) { |
| Slog.v(TAG, "Changing visibility of view " + child + " from " |
| + child.getVisibility() + " to " + visibility); |
| } |
| child.setVisibility(visibility); |
| } |
| } |
| |
| /** |
| * Builder for {@link VisibilitySetterAction} objects. |
| */ |
| public static class Builder { |
| private final SparseIntArray mVisibilities = new SparseIntArray(); |
| private boolean mDestroyed; |
| |
| /** |
| * Creates a new builder for an action that change the visibility of one child view. |
| * |
| * @param id view resource id of the children view. |
| * @param visibility one of {@link View#VISIBLE}, {@link View#INVISIBLE}, or |
| * {@link View#GONE}. |
| * @throws IllegalArgumentException if visibility is not one of {@link View#VISIBLE}, |
| * {@link View#INVISIBLE}, or {@link View#GONE}. |
| */ |
| public Builder(@IdRes int id, @Visibility int visibility) { |
| setVisibility(id, visibility); |
| } |
| |
| /** |
| * Sets the action to changes the visibility of a child view. |
| * |
| * @param id view resource id of the children view. |
| * @param visibility one of {@link View#VISIBLE}, {@link View#INVISIBLE}, or |
| * {@link View#GONE}. |
| * @throws IllegalArgumentException if visibility is not one of {@link View#VISIBLE}, |
| * {@link View#INVISIBLE}, or {@link View#GONE}. |
| */ |
| public Builder setVisibility(@IdRes int id, @Visibility int visibility) { |
| throwIfDestroyed(); |
| switch (visibility) { |
| case View.VISIBLE: |
| case View.INVISIBLE: |
| case View.GONE: |
| mVisibilities.put(id, visibility); |
| return this; |
| } |
| throw new IllegalArgumentException("Invalid visibility: " + visibility); |
| } |
| |
| /** |
| * Creates a new {@link VisibilitySetterAction} instance. |
| */ |
| public VisibilitySetterAction build() { |
| throwIfDestroyed(); |
| mDestroyed = true; |
| return new VisibilitySetterAction(this); |
| } |
| |
| private void throwIfDestroyed() { |
| Preconditions.checkState(!mDestroyed, "Already called build()"); |
| } |
| } |
| |
| ///////////////////////////////////// |
| // Object "contract" methods. // |
| ///////////////////////////////////// |
| @Override |
| public String toString() { |
| if (!sDebug) return super.toString(); |
| |
| return "VisibilitySetterAction: [" + mVisibilities + "]"; |
| } |
| |
| ///////////////////////////////////// |
| // Parcelable "contract" methods. // |
| ///////////////////////////////////// |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel parcel, int flags) { |
| parcel.writeSparseIntArray(mVisibilities); |
| } |
| |
| public static final Parcelable.Creator<VisibilitySetterAction> CREATOR = |
| new Parcelable.Creator<VisibilitySetterAction>() { |
| @Override |
| public VisibilitySetterAction createFromParcel(Parcel parcel) { |
| // Always go through the builder to ensure the data ingested by |
| // the system obeys the contract of the builder to avoid attacks |
| final SparseIntArray visibilities = parcel.readSparseIntArray(); |
| Builder builder = null; |
| for (int i = 0; i < visibilities.size(); i++) { |
| final int id = visibilities.keyAt(i); |
| final int visibility = visibilities.valueAt(i); |
| if (builder == null) { |
| builder = new Builder(id, visibility); |
| } else { |
| builder.setVisibility(id, visibility); |
| } |
| } |
| return builder == null ? null : builder.build(); |
| } |
| |
| @Override |
| public VisibilitySetterAction[] newArray(int size) { |
| return new VisibilitySetterAction[size]; |
| } |
| }; |
| } |