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virtualx-engine/platform/android/android_input_handler.cpp
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all 
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00

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/**************************************************************************/
/* android_input_handler.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "android_input_handler.h"
#include "android_keys_utils.h"
#include "display_server_android.h"
void AndroidInputHandler::process_joy_event(AndroidInputHandler::JoypadEvent p_event) {
switch (p_event.type) {
case JOY_EVENT_BUTTON:
Input::get_singleton()->joy_button(p_event.device, (JoyButton)p_event.index, p_event.pressed);
break;
case JOY_EVENT_AXIS:
Input::get_singleton()->joy_axis(p_event.device, (JoyAxis)p_event.index, p_event.value);
break;
case JOY_EVENT_HAT:
Input::get_singleton()->joy_hat(p_event.device, p_event.hat);
break;
default:
return;
}
}
void AndroidInputHandler::_set_key_modifier_state(Ref<InputEventWithModifiers> ev) {
ev->set_shift_pressed(shift_mem);
ev->set_alt_pressed(alt_mem);
ev->set_meta_pressed(meta_mem);
ev->set_ctrl_pressed(control_mem);
}
void AndroidInputHandler::process_key_event(int p_keycode, int p_physical_keycode, int p_unicode, bool p_pressed) {
static char32_t prev_wc = 0;
char32_t unicode = p_unicode;
if ((p_unicode & 0xfffffc00) == 0xd800) {
if (prev_wc != 0) {
ERR_PRINT("invalid utf16 surrogate input");
}
prev_wc = unicode;
return; // Skip surrogate.
} else if ((unicode & 0xfffffc00) == 0xdc00) {
if (prev_wc == 0) {
ERR_PRINT("invalid utf16 surrogate input");
return; // Skip invalid surrogate.
}
unicode = (prev_wc << 10UL) + unicode - ((0xd800 << 10UL) + 0xdc00 - 0x10000);
prev_wc = 0;
} else {
prev_wc = 0;
}
Ref<InputEventKey> ev;
ev.instantiate();
Key physical_keycode = godot_code_from_android_code(p_physical_keycode);
Key keycode = physical_keycode;
if (p_keycode != 0) {
keycode = godot_code_from_unicode(p_keycode);
}
switch (physical_keycode) {
case Key::SHIFT: {
shift_mem = p_pressed;
} break;
case Key::ALT: {
alt_mem = p_pressed;
} break;
case Key::CTRL: {
control_mem = p_pressed;
} break;
case Key::META: {
meta_mem = p_pressed;
} break;
default:
break;
}
ev->set_keycode(keycode);
ev->set_physical_keycode(physical_keycode);
ev->set_unicode(unicode);
ev->set_pressed(p_pressed);
_set_key_modifier_state(ev);
if (p_physical_keycode == AKEYCODE_BACK) {
if (DisplayServerAndroid *dsa = Object::cast_to<DisplayServerAndroid>(DisplayServer::get_singleton())) {
dsa->send_window_event(DisplayServer::WINDOW_EVENT_GO_BACK_REQUEST, true);
}
}
Input::get_singleton()->parse_input_event(ev);
}
void AndroidInputHandler::_parse_all_touch(bool p_pressed, bool p_double_tap) {
if (touch.size()) {
//end all if exist
for (int i = 0; i < touch.size(); i++) {
Ref<InputEventScreenTouch> ev;
ev.instantiate();
ev->set_index(touch[i].id);
ev->set_pressed(p_pressed);
ev->set_position(touch[i].pos);
ev->set_double_tap(p_double_tap);
Input::get_singleton()->parse_input_event(ev);
}
}
}
void AndroidInputHandler::_release_all_touch() {
_parse_all_touch(false, false);
touch.clear();
}
void AndroidInputHandler::process_touch_event(int p_event, int p_pointer, const Vector<TouchPos> &p_points, bool p_double_tap) {
switch (p_event) {
case AMOTION_EVENT_ACTION_DOWN: { //gesture begin
// Release any remaining touches or mouse event
_release_mouse_event_info();
_release_all_touch();
touch.resize(p_points.size());
for (int i = 0; i < p_points.size(); i++) {
touch.write[i].id = p_points[i].id;
touch.write[i].pos = p_points[i].pos;
}
//send touch
_parse_all_touch(true, p_double_tap);
} break;
case AMOTION_EVENT_ACTION_MOVE: { //motion
if (touch.size() != p_points.size()) {
return;
}
for (int i = 0; i < touch.size(); i++) {
int idx = -1;
for (int j = 0; j < p_points.size(); j++) {
if (touch[i].id == p_points[j].id) {
idx = j;
break;
}
}
ERR_CONTINUE(idx == -1);
if (touch[i].pos == p_points[idx].pos) {
continue; // Don't move unnecessarily.
}
Ref<InputEventScreenDrag> ev;
ev.instantiate();
ev->set_index(touch[i].id);
ev->set_position(p_points[idx].pos);
ev->set_relative(p_points[idx].pos - touch[i].pos);
Input::get_singleton()->parse_input_event(ev);
touch.write[i].pos = p_points[idx].pos;
}
} break;
case AMOTION_EVENT_ACTION_CANCEL:
case AMOTION_EVENT_ACTION_UP: { //release
_release_all_touch();
} break;
case AMOTION_EVENT_ACTION_POINTER_DOWN: { // add touch
for (int i = 0; i < p_points.size(); i++) {
if (p_points[i].id == p_pointer) {
TouchPos tp = p_points[i];
touch.push_back(tp);
Ref<InputEventScreenTouch> ev;
ev.instantiate();
ev->set_index(tp.id);
ev->set_pressed(true);
ev->set_position(tp.pos);
Input::get_singleton()->parse_input_event(ev);
break;
}
}
} break;
case AMOTION_EVENT_ACTION_POINTER_UP: { // remove touch
for (int i = 0; i < touch.size(); i++) {
if (touch[i].id == p_pointer) {
Ref<InputEventScreenTouch> ev;
ev.instantiate();
ev->set_index(touch[i].id);
ev->set_pressed(false);
ev->set_position(touch[i].pos);
Input::get_singleton()->parse_input_event(ev);
touch.remove_at(i);
break;
}
}
} break;
}
}
void AndroidInputHandler::_parse_mouse_event_info(MouseButton event_buttons_mask, bool p_pressed, bool p_double_click, bool p_source_mouse_relative) {
if (!mouse_event_info.valid) {
return;
}
Ref<InputEventMouseButton> ev;
ev.instantiate();
_set_key_modifier_state(ev);
if (p_source_mouse_relative) {
ev->set_position(hover_prev_pos);
ev->set_global_position(hover_prev_pos);
} else {
ev->set_position(mouse_event_info.pos);
ev->set_global_position(mouse_event_info.pos);
hover_prev_pos = mouse_event_info.pos;
}
ev->set_pressed(p_pressed);
MouseButton changed_button_mask = MouseButton(buttons_state ^ event_buttons_mask);
buttons_state = event_buttons_mask;
ev->set_button_index(_button_index_from_mask(changed_button_mask));
ev->set_button_mask(event_buttons_mask);
ev->set_double_click(p_double_click);
Input::get_singleton()->parse_input_event(ev);
}
void AndroidInputHandler::_release_mouse_event_info(bool p_source_mouse_relative) {
_parse_mouse_event_info(MouseButton::NONE, false, false, p_source_mouse_relative);
mouse_event_info.valid = false;
}
void AndroidInputHandler::process_mouse_event(int p_event_action, int p_event_android_buttons_mask, Point2 p_event_pos, Vector2 p_delta, bool p_double_click, bool p_source_mouse_relative) {
MouseButton event_buttons_mask = _android_button_mask_to_godot_button_mask(p_event_android_buttons_mask);
switch (p_event_action) {
case AMOTION_EVENT_ACTION_HOVER_MOVE: // hover move
case AMOTION_EVENT_ACTION_HOVER_ENTER: // hover enter
case AMOTION_EVENT_ACTION_HOVER_EXIT: { // hover exit
// https://developer.android.com/reference/android/view/MotionEvent.html#ACTION_HOVER_ENTER
Ref<InputEventMouseMotion> ev;
ev.instantiate();
_set_key_modifier_state(ev);
ev->set_position(p_event_pos);
ev->set_global_position(p_event_pos);
ev->set_relative(p_event_pos - hover_prev_pos);
Input::get_singleton()->parse_input_event(ev);
hover_prev_pos = p_event_pos;
} break;
case AMOTION_EVENT_ACTION_DOWN:
case AMOTION_EVENT_ACTION_BUTTON_PRESS: {
// Release any remaining touches or mouse event
_release_mouse_event_info();
_release_all_touch();
mouse_event_info.valid = true;
mouse_event_info.pos = p_event_pos;
_parse_mouse_event_info(event_buttons_mask, true, p_double_click, p_source_mouse_relative);
} break;
case AMOTION_EVENT_ACTION_UP:
case AMOTION_EVENT_ACTION_CANCEL:
case AMOTION_EVENT_ACTION_BUTTON_RELEASE: {
_release_mouse_event_info(p_source_mouse_relative);
} break;
case AMOTION_EVENT_ACTION_MOVE: {
if (!mouse_event_info.valid) {
return;
}
Ref<InputEventMouseMotion> ev;
ev.instantiate();
_set_key_modifier_state(ev);
if (p_source_mouse_relative) {
ev->set_position(hover_prev_pos);
ev->set_global_position(hover_prev_pos);
ev->set_relative(p_event_pos);
} else {
ev->set_position(p_event_pos);
ev->set_global_position(p_event_pos);
ev->set_relative(p_event_pos - hover_prev_pos);
mouse_event_info.pos = p_event_pos;
hover_prev_pos = p_event_pos;
}
ev->set_button_mask(event_buttons_mask);
Input::get_singleton()->parse_input_event(ev);
} break;
case AMOTION_EVENT_ACTION_SCROLL: {
Ref<InputEventMouseButton> ev;
ev.instantiate();
_set_key_modifier_state(ev);
if (p_source_mouse_relative) {
ev->set_position(hover_prev_pos);
ev->set_global_position(hover_prev_pos);
} else {
ev->set_position(p_event_pos);
ev->set_global_position(p_event_pos);
}
ev->set_pressed(true);
buttons_state = event_buttons_mask;
if (p_delta.y > 0) {
_wheel_button_click(event_buttons_mask, ev, MouseButton::WHEEL_UP, p_delta.y);
} else if (p_delta.y < 0) {
_wheel_button_click(event_buttons_mask, ev, MouseButton::WHEEL_DOWN, -p_delta.y);
}
if (p_delta.x > 0) {
_wheel_button_click(event_buttons_mask, ev, MouseButton::WHEEL_RIGHT, p_delta.x);
} else if (p_delta.x < 0) {
_wheel_button_click(event_buttons_mask, ev, MouseButton::WHEEL_LEFT, -p_delta.x);
}
} break;
}
}
void AndroidInputHandler::_wheel_button_click(MouseButton event_buttons_mask, const Ref<InputEventMouseButton> &ev, MouseButton wheel_button, float factor) {
Ref<InputEventMouseButton> evd = ev->duplicate();
_set_key_modifier_state(evd);
evd->set_button_index(wheel_button);
evd->set_button_mask(MouseButton(event_buttons_mask ^ mouse_button_to_mask(wheel_button)));
evd->set_factor(factor);
Input::get_singleton()->parse_input_event(evd);
Ref<InputEventMouseButton> evdd = evd->duplicate();
evdd->set_pressed(false);
evdd->set_button_mask(event_buttons_mask);
Input::get_singleton()->parse_input_event(evdd);
}
void AndroidInputHandler::process_magnify(Point2 p_pos, float p_factor) {
Ref<InputEventMagnifyGesture> magnify_event;
magnify_event.instantiate();
_set_key_modifier_state(magnify_event);
magnify_event->set_position(p_pos);
magnify_event->set_factor(p_factor);
Input::get_singleton()->parse_input_event(magnify_event);
}
void AndroidInputHandler::process_pan(Point2 p_pos, Vector2 p_delta) {
Ref<InputEventPanGesture> pan_event;
pan_event.instantiate();
_set_key_modifier_state(pan_event);
pan_event->set_position(p_pos);
pan_event->set_delta(p_delta);
Input::get_singleton()->parse_input_event(pan_event);
}
MouseButton AndroidInputHandler::_button_index_from_mask(MouseButton button_mask) {
switch (button_mask) {
case MouseButton::MASK_LEFT:
return MouseButton::LEFT;
case MouseButton::MASK_RIGHT:
return MouseButton::RIGHT;
case MouseButton::MASK_MIDDLE:
return MouseButton::MIDDLE;
case MouseButton::MASK_XBUTTON1:
return MouseButton::MB_XBUTTON1;
case MouseButton::MASK_XBUTTON2:
return MouseButton::MB_XBUTTON2;
default:
return MouseButton::NONE;
}
}
MouseButton AndroidInputHandler::_android_button_mask_to_godot_button_mask(int android_button_mask) {
MouseButton godot_button_mask = MouseButton::NONE;
if (android_button_mask & AMOTION_EVENT_BUTTON_PRIMARY) {
godot_button_mask |= MouseButton::MASK_LEFT;
}
if (android_button_mask & AMOTION_EVENT_BUTTON_SECONDARY) {
godot_button_mask |= MouseButton::MASK_RIGHT;
}
if (android_button_mask & AMOTION_EVENT_BUTTON_TERTIARY) {
godot_button_mask |= MouseButton::MASK_MIDDLE;
}
if (android_button_mask & AMOTION_EVENT_BUTTON_BACK) {
godot_button_mask |= MouseButton::MASK_XBUTTON1;
}
if (android_button_mask & AMOTION_EVENT_BUTTON_FORWARD) {
godot_button_mask |= MouseButton::MASK_XBUTTON2;
}
return godot_button_mask;
}
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