Garfield Tan | e84e6f9 | 2019-08-29 17:28:41 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "InputTarget.h" |
| 18 | |
| 19 | #include <android-base/stringprintf.h> |
| 20 | #include <inttypes.h> |
| 21 | #include <string> |
| 22 | |
| 23 | using android::base::StringPrintf; |
| 24 | |
| 25 | namespace android::inputdispatcher { |
| 26 | |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 27 | void InputTarget::addPointers(BitSet32 newPointerIds, const ui::Transform& transform) { |
Arthur Hung | b75c2aa | 2022-07-15 09:35:36 +0000 | [diff] [blame] | 28 | // The pointerIds can be empty, but still a valid InputTarget. This can happen when there is no |
| 29 | // valid pointer property from the input event. |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 30 | if (newPointerIds.isEmpty()) { |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 31 | setDefaultPointerTransform(transform); |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 32 | return; |
| 33 | } |
| 34 | |
| 35 | // Ensure that the new set of pointers doesn't overlap with the current set of pointers. |
| 36 | ALOG_ASSERT((pointerIds & newPointerIds) == 0); |
| 37 | |
| 38 | pointerIds |= newPointerIds; |
| 39 | while (!newPointerIds.isEmpty()) { |
| 40 | int32_t pointerId = newPointerIds.clearFirstMarkedBit(); |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 41 | pointerTransforms[pointerId] = transform; |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 42 | } |
| 43 | } |
| 44 | |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 45 | void InputTarget::setDefaultPointerTransform(const ui::Transform& transform) { |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 46 | pointerIds.clear(); |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 47 | pointerTransforms[0] = transform; |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 48 | } |
| 49 | |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 50 | bool InputTarget::useDefaultPointerTransform() const { |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 51 | return pointerIds.isEmpty(); |
| 52 | } |
| 53 | |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 54 | const ui::Transform& InputTarget::getDefaultPointerTransform() const { |
| 55 | return pointerTransforms[0]; |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | std::string InputTarget::getPointerInfoString() const { |
chaviw | 85b4420 | 2020-07-24 11:46:21 -0700 | [diff] [blame] | 59 | std::string out = "\n"; |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 60 | if (useDefaultPointerTransform()) { |
| 61 | const ui::Transform& transform = getDefaultPointerTransform(); |
chaviw | 85b4420 | 2020-07-24 11:46:21 -0700 | [diff] [blame] | 62 | transform.dump(out, "default", " "); |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 63 | return out; |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 64 | } |
| 65 | |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 66 | for (uint32_t i = pointerIds.firstMarkedBit(); i <= pointerIds.lastMarkedBit(); i++) { |
| 67 | if (!pointerIds.hasBit(i)) { |
| 68 | continue; |
| 69 | } |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 70 | |
chaviw | 1ff3d1e | 2020-07-01 15:53:47 -0700 | [diff] [blame] | 71 | const std::string name = "pointerId " + std::to_string(i) + ":"; |
chaviw | 85b4420 | 2020-07-24 11:46:21 -0700 | [diff] [blame] | 72 | pointerTransforms[i].dump(out, name.c_str(), " "); |
Chavi Weingarten | 65f98b8 | 2020-01-16 18:56:50 +0000 | [diff] [blame] | 73 | } |
| 74 | return out; |
| 75 | } |
Garfield Tan | e84e6f9 | 2019-08-29 17:28:41 -0700 | [diff] [blame] | 76 | } // namespace android::inputdispatcher |