104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
/*
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* Copyright (C) 2019 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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#ifndef _UI_INPUTREADER_TOUCH_CURSOR_INPUT_MAPPER_COMMON_H
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#define _UI_INPUTREADER_TOUCH_CURSOR_INPUT_MAPPER_COMMON_H
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#include <input/DisplayViewport.h>
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#include <stdint.h>
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#include "EventHub.h"
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#include "InputListener.h"
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#include "InputReaderContext.h"
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namespace android {
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// --- Static Definitions ---
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static int32_t getInverseRotation(int32_t orientation) {
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switch (orientation) {
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case DISPLAY_ORIENTATION_90:
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return DISPLAY_ORIENTATION_270;
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case DISPLAY_ORIENTATION_270:
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return DISPLAY_ORIENTATION_90;
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default:
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return orientation;
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}
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}
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static void rotateDelta(int32_t orientation, float* deltaX, float* deltaY) {
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float temp;
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switch (orientation) {
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case DISPLAY_ORIENTATION_90:
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temp = *deltaX;
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*deltaX = *deltaY;
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*deltaY = -temp;
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break;
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case DISPLAY_ORIENTATION_180:
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*deltaX = -*deltaX;
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*deltaY = -*deltaY;
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break;
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case DISPLAY_ORIENTATION_270:
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temp = *deltaX;
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*deltaX = -*deltaY;
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*deltaY = temp;
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break;
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default:
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break;
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}
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}
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// Returns true if the pointer should be reported as being down given the specified
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// button states. This determines whether the event is reported as a touch event.
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static bool isPointerDown(int32_t buttonState) {
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return buttonState &
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(AMOTION_EVENT_BUTTON_PRIMARY | AMOTION_EVENT_BUTTON_SECONDARY |
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AMOTION_EVENT_BUTTON_TERTIARY);
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}
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static void synthesizeButtonKey(InputReaderContext* context, int32_t action, nsecs_t when,
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nsecs_t readTime, int32_t deviceId, uint32_t source,
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int32_t displayId, uint32_t policyFlags, int32_t lastButtonState,
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int32_t currentButtonState, int32_t buttonState, int32_t keyCode) {
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if ((action == AKEY_EVENT_ACTION_DOWN && !(lastButtonState & buttonState) &&
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(currentButtonState & buttonState)) ||
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(action == AKEY_EVENT_ACTION_UP && (lastButtonState & buttonState) &&
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!(currentButtonState & buttonState))) {
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NotifyKeyArgs args(context->getNextId(), when, readTime, deviceId, source, displayId,
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policyFlags, action, 0, keyCode, 0, context->getGlobalMetaState(), when);
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context->getListener().notifyKey(&args);
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}
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}
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static void synthesizeButtonKeys(InputReaderContext* context, int32_t action, nsecs_t when,
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nsecs_t readTime, int32_t deviceId, uint32_t source,
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int32_t displayId, uint32_t policyFlags, int32_t lastButtonState,
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int32_t currentButtonState) {
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synthesizeButtonKey(context, action, when, readTime, deviceId, source, displayId, policyFlags,
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lastButtonState, currentButtonState, AMOTION_EVENT_BUTTON_BACK,
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AKEYCODE_BACK);
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synthesizeButtonKey(context, action, when, readTime, deviceId, source, displayId, policyFlags,
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lastButtonState, currentButtonState, AMOTION_EVENT_BUTTON_FORWARD,
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AKEYCODE_FORWARD);
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}
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} // namespace android
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#endif // _UI_INPUTREADER_TOUCH_CURSOR_INPUT_MAPPER_COMMON_H
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