32cbc3855c
This change simplifies the code associated with receiving input events from input channels and makes it more robust. It also does a better job of ensuring that input events are properly recycled (sometimes we dropped them on the floor). This change also adds a sequence number to all events, which is handy for determining whether we are looking at the same event or a new one, particularly when events are recycled. Change-Id: I4ebd88f73b5f77f3e150778cd550e7f91956aac2
108 lines
4.0 KiB
Java
108 lines
4.0 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.wm;
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import android.os.Looper;
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import android.os.Process;
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import android.util.Slog;
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import android.view.InputChannel;
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import android.view.InputEventReceiver;
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import android.view.InputQueue;
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import android.view.WindowManagerPolicy;
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public final class FakeWindowImpl implements WindowManagerPolicy.FakeWindow {
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final WindowManagerService mService;
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final InputChannel mServerChannel, mClientChannel;
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final InputApplicationHandle mApplicationHandle;
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final InputWindowHandle mWindowHandle;
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final InputEventReceiver mInputEventReceiver;
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final int mWindowLayer;
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boolean mTouchFullscreen;
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public FakeWindowImpl(WindowManagerService service,
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Looper looper, InputEventReceiver.Factory inputEventReceiverFactory,
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String name, int windowType, int layoutParamsFlags, boolean canReceiveKeys,
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boolean hasFocus, boolean touchFullscreen) {
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mService = service;
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InputChannel[] channels = InputChannel.openInputChannelPair(name);
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mServerChannel = channels[0];
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mClientChannel = channels[1];
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mService.mInputManager.registerInputChannel(mServerChannel, null);
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mInputEventReceiver = inputEventReceiverFactory.createInputEventReceiver(
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mClientChannel, looper);
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mApplicationHandle = new InputApplicationHandle(null);
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mApplicationHandle.name = name;
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mApplicationHandle.dispatchingTimeoutNanos =
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WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS;
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mWindowHandle = new InputWindowHandle(mApplicationHandle, null);
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mWindowHandle.name = name;
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mWindowHandle.inputChannel = mServerChannel;
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mWindowLayer = getLayerLw(windowType);
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mWindowHandle.layer = mWindowLayer;
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mWindowHandle.layoutParamsFlags = layoutParamsFlags;
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mWindowHandle.layoutParamsType = windowType;
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mWindowHandle.dispatchingTimeoutNanos =
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WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS;
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mWindowHandle.visible = true;
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mWindowHandle.canReceiveKeys = canReceiveKeys;
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mWindowHandle.hasFocus = hasFocus;
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mWindowHandle.hasWallpaper = false;
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mWindowHandle.paused = false;
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mWindowHandle.ownerPid = Process.myPid();
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mWindowHandle.ownerUid = Process.myUid();
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mWindowHandle.inputFeatures = 0;
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mWindowHandle.scaleFactor = 1.0f;
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mTouchFullscreen = touchFullscreen;
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}
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void layout(int dw, int dh) {
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if (mTouchFullscreen) {
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mWindowHandle.touchableRegion.set(0, 0, dw, dh);
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} else {
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mWindowHandle.touchableRegion.setEmpty();
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}
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mWindowHandle.frameLeft = 0;
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mWindowHandle.frameTop = 0;
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mWindowHandle.frameRight = dw;
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mWindowHandle.frameBottom = dh;
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}
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@Override
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public void dismiss() {
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synchronized (mService.mWindowMap) {
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if (mService.removeFakeWindowLocked(this)) {
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mInputEventReceiver.dispose();
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mService.mInputManager.unregisterInputChannel(mServerChannel);
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mClientChannel.dispose();
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mServerChannel.dispose();
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}
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}
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}
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private int getLayerLw(int windowType) {
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return mService.mPolicy.windowTypeToLayerLw(windowType)
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* WindowManagerService.TYPE_LAYER_MULTIPLIER
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+ WindowManagerService.TYPE_LAYER_OFFSET;
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}
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}
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