| /* |
| * Copyright (C) 2019 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.TYPE_IME; |
| |
| import android.inputmethodservice.InputMethodService; |
| import android.os.Parcel; |
| import android.text.TextUtils; |
| import android.view.SurfaceControl.Transaction; |
| import android.view.inputmethod.EditorInfo; |
| import android.view.inputmethod.InputMethodManager; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.util.Arrays; |
| import java.util.function.Supplier; |
| |
| /** |
| * Controls the visibility and animations of IME window insets source. |
| * @hide |
| */ |
| public final class ImeInsetsSourceConsumer extends InsetsSourceConsumer { |
| private EditorInfo mFocusedEditor; |
| private EditorInfo mPreRenderedEditor; |
| /** |
| * Determines if IME would be shown next time IME is pre-rendered for currently focused |
| * editor {@link #mFocusedEditor} if {@link #isServedEditorRendered} is {@code true}. |
| */ |
| private boolean mShowOnNextImeRender; |
| private boolean mHasWindowFocus; |
| |
| public ImeInsetsSourceConsumer( |
| InsetsState state, Supplier<Transaction> transactionSupplier, |
| InsetsController controller) { |
| super(TYPE_IME, state, transactionSupplier, controller); |
| } |
| |
| public void onPreRendered(EditorInfo info) { |
| mPreRenderedEditor = info; |
| if (mShowOnNextImeRender) { |
| mShowOnNextImeRender = false; |
| if (isServedEditorRendered()) { |
| applyImeVisibility(true /* setVisible */); |
| } |
| } |
| } |
| |
| public void onServedEditorChanged(EditorInfo info) { |
| if (isDummyOrEmptyEditor(info)) { |
| mShowOnNextImeRender = false; |
| } |
| mFocusedEditor = info; |
| } |
| |
| public void applyImeVisibility(boolean setVisible) { |
| if (!mHasWindowFocus) { |
| // App window doesn't have focus, any visibility changes would be no-op. |
| return; |
| } |
| |
| mController.applyImeVisibility(setVisible); |
| } |
| |
| @Override |
| public void onWindowFocusGained() { |
| mHasWindowFocus = true; |
| getImm().registerImeConsumer(this); |
| } |
| |
| @Override |
| public void onWindowFocusLost() { |
| mHasWindowFocus = false; |
| getImm().unregisterImeConsumer(this); |
| } |
| |
| /** |
| * Request {@link InputMethodManager} to show the IME. |
| * @return @see {@link android.view.InsetsSourceConsumer.ShowResult}. |
| */ |
| @Override |
| @ShowResult int requestShow(boolean fromIme) { |
| // TODO: ResultReceiver for IME. |
| // TODO: Set mShowOnNextImeRender to automatically show IME and guard it with a flag. |
| if (fromIme) { |
| return ShowResult.SHOW_IMMEDIATELY; |
| } |
| |
| return getImm().requestImeShow(null /* resultReceiver */) |
| ? ShowResult.SHOW_DELAYED : ShowResult.SHOW_FAILED; |
| } |
| |
| /** |
| * Notify {@link InputMethodService} that IME window is hidden. |
| */ |
| @Override |
| void notifyHidden() { |
| getImm().notifyImeHidden(); |
| } |
| |
| private boolean isDummyOrEmptyEditor(EditorInfo info) { |
| // TODO(b/123044812): Handle dummy input gracefully in IME Insets API |
| return info == null || (info.fieldId <= 0 && info.inputType <= 0); |
| } |
| |
| private boolean isServedEditorRendered() { |
| if (mFocusedEditor == null || mPreRenderedEditor == null |
| || isDummyOrEmptyEditor(mFocusedEditor) |
| || isDummyOrEmptyEditor(mPreRenderedEditor)) { |
| // No view is focused or ready. |
| return false; |
| } |
| return areEditorsSimilar(mFocusedEditor, mPreRenderedEditor); |
| } |
| |
| @VisibleForTesting |
| public static boolean areEditorsSimilar(EditorInfo info1, EditorInfo info2) { |
| // We don't need to compare EditorInfo.fieldId (View#id) since that shouldn't change |
| // IME views. |
| boolean areOptionsSimilar = |
| info1.imeOptions == info2.imeOptions |
| && info1.inputType == info2.inputType |
| && TextUtils.equals(info1.packageName, info2.packageName); |
| areOptionsSimilar &= info1.privateImeOptions != null |
| ? info1.privateImeOptions.equals(info2.privateImeOptions) : true; |
| |
| if (!areOptionsSimilar) { |
| return false; |
| } |
| |
| // compare bundle extras. |
| if ((info1.extras == null && info2.extras == null) || info1.extras == info2.extras) { |
| return true; |
| } |
| if ((info1.extras == null && info2.extras != null) |
| || (info1.extras == null && info2.extras != null)) { |
| return false; |
| } |
| if (info1.extras.hashCode() == info2.extras.hashCode() |
| || info1.extras.equals(info1)) { |
| return true; |
| } |
| if (info1.extras.size() != info2.extras.size()) { |
| return false; |
| } |
| if (info1.extras.toString().equals(info2.extras.toString())) { |
| return true; |
| } |
| |
| // Compare bytes |
| Parcel parcel1 = Parcel.obtain(); |
| info1.extras.writeToParcel(parcel1, 0); |
| parcel1.setDataPosition(0); |
| Parcel parcel2 = Parcel.obtain(); |
| info2.extras.writeToParcel(parcel2, 0); |
| parcel2.setDataPosition(0); |
| |
| return Arrays.equals(parcel1.createByteArray(), parcel2.createByteArray()); |
| } |
| |
| private InputMethodManager getImm() { |
| return mController.getViewRoot().mContext.getSystemService(InputMethodManager.class); |
| } |
| } |