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Reimplement HTML5 mouse input without GLUT
Fixes inverted scrolling on Chromium
(cherry picked from commit a99b6b2063)
This commit is contained in:
Leon Krause
parent
73e3947493
commit
9b07e32656
3 changed files with 113 additions and 92 deletions
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@ -42,6 +42,21 @@
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#include "emscripten.h"
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#include "stdlib.h"
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#define DOM_BUTTON_LEFT 0
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#define DOM_BUTTON_MIDDLE 1
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#define DOM_BUTTON_RIGHT 2
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template <typename T>
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static InputModifierState dom2godot_mod(T emscripten_event_ptr) {
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InputModifierState mod;
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mod.shift = emscripten_event_ptr->shiftKey;
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mod.alt = emscripten_event_ptr->altKey;
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mod.control = emscripten_event_ptr->ctrlKey;
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mod.meta = emscripten_event_ptr->metaKey;
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return mod;
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}
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int OS_JavaScript::get_video_driver_count() const {
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return 1;
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@ -130,15 +145,101 @@ static EM_BOOL _fullscreen_change_callback(int event_type, const EmscriptenFulls
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return false;
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}
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static InputDefault *_input;
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static int last_button_mask;
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static EM_BOOL _mousebutton_callback(int event_type, const EmscriptenMouseEvent *mouse_event, void *user_data) {
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ERR_FAIL_COND_V(event_type != EMSCRIPTEN_EVENT_MOUSEDOWN && event_type != EMSCRIPTEN_EVENT_MOUSEUP, false);
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InputEvent ev;
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ev.type = InputEvent::MOUSE_BUTTON;
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ev.mouse_button.pressed = event_type == EMSCRIPTEN_EVENT_MOUSEDOWN;
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ev.mouse_button.global_x = ev.mouse_button.x = mouse_event->canvasX;
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ev.mouse_button.global_y = ev.mouse_button.y = mouse_event->canvasY;
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ev.mouse_button.mod = dom2godot_mod(mouse_event);
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switch (mouse_event->button) {
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case DOM_BUTTON_LEFT: ev.mouse_button.button_index = BUTTON_LEFT; break;
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case DOM_BUTTON_MIDDLE: ev.mouse_button.button_index = BUTTON_MIDDLE; break;
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case DOM_BUTTON_RIGHT: ev.mouse_button.button_index = BUTTON_RIGHT; break;
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default: return false;
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}
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ev.mouse_button.button_mask = last_button_mask;
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if (ev.mouse_button.pressed)
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ev.mouse_button.button_mask |= 1 << (ev.mouse_button.button_index - 1);
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else
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ev.mouse_button.button_mask &= ~(1 << (ev.mouse_button.button_index - 1));
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last_button_mask = ev.mouse_button.button_mask;
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_input->parse_input_event(ev);
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return true;
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}
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static EM_BOOL _mousemove_callback(int event_type, const EmscriptenMouseEvent *mouse_event, void *user_data) {
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ERR_FAIL_COND_V(event_type != EMSCRIPTEN_EVENT_MOUSEMOVE, false);
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InputEvent ev;
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ev.type = InputEvent::MOUSE_MOTION;
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ev.mouse_motion.mod = dom2godot_mod(mouse_event);
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ev.mouse_motion.button_mask = last_button_mask;
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ev.mouse_motion.global_x = ev.mouse_motion.x = mouse_event->canvasX;
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ev.mouse_motion.global_y = ev.mouse_motion.y = mouse_event->canvasY;
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ev.mouse_motion.relative_x = _input->get_mouse_pos().x - ev.mouse_motion.x;
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ev.mouse_motion.relative_y = _input->get_mouse_pos().y - ev.mouse_motion.y;
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_input->set_mouse_pos(Point2(ev.mouse_motion.x, ev.mouse_motion.y));
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ev.mouse_motion.speed_x = _input->get_mouse_speed().x;
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ev.mouse_motion.speed_y = _input->get_mouse_speed().y;
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_input->parse_input_event(ev);
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return true;
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}
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static EM_BOOL _wheel_callback(int event_type, const EmscriptenWheelEvent *wheel_event, void *user_data) {
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ERR_FAIL_COND_V(event_type != EMSCRIPTEN_EVENT_WHEEL, false);
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InputEvent ev;
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ev.type = InputEvent::MOUSE_BUTTON;
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ev.mouse_button.button_mask = last_button_mask;
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ev.mouse_button.global_x = ev.mouse_button.x = _input->get_mouse_pos().x;
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ev.mouse_button.global_y = ev.mouse_button.y = _input->get_mouse_pos().y;
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ev.mouse_button.mod.shift = _input->is_key_pressed(KEY_SHIFT);
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ev.mouse_button.mod.alt = _input->is_key_pressed(KEY_ALT);
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ev.mouse_button.mod.control = _input->is_key_pressed(KEY_CONTROL);
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ev.mouse_button.mod.meta = _input->is_key_pressed(KEY_META);
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if (wheel_event->deltaY < 0)
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ev.mouse_button.button_index = BUTTON_WHEEL_UP;
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else if (wheel_event->deltaY > 0)
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ev.mouse_button.button_index = BUTTON_WHEEL_DOWN;
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else if (wheel_event->deltaX > 0)
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ev.mouse_button.button_index = BUTTON_WHEEL_LEFT;
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else if (wheel_event->deltaX < 0)
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ev.mouse_button.button_index = BUTTON_WHEEL_RIGHT;
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else
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return false;
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ev.mouse_button.pressed = true;
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_input->parse_input_event(ev);
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ev.mouse_button.pressed = false;
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_input->parse_input_event(ev);
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return true;
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}
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static InputEvent _setup_key_event(const EmscriptenKeyboardEvent *emscripten_event) {
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InputEvent ev;
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ev.type = InputEvent::KEY;
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ev.key.echo = emscripten_event->repeat;
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ev.key.mod.alt = emscripten_event->altKey;
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ev.key.mod.shift = emscripten_event->shiftKey;
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ev.key.mod.control = emscripten_event->ctrlKey;
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ev.key.mod.meta = emscripten_event->metaKey;
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ev.key.mod = dom2godot_mod(emscripten_event);
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ev.key.scancode = dom2godot_scancode(emscripten_event->keyCode);
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String unicode = String::utf8(emscripten_event->key);
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@ -167,7 +268,7 @@ static EM_BOOL _keydown_callback(int event_type, const EmscriptenKeyboardEvent *
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deferred_key_event = ev;
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return false; // do not suppress keypress event
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}
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static_cast<OS_JavaScript *>(user_data)->push_input(ev);
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_input->parse_input_event(ev);
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return true;
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}
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@ -176,7 +277,7 @@ static EM_BOOL _keypress_callback(int event_type, const EmscriptenKeyboardEvent
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ERR_FAIL_COND_V(event_type != EMSCRIPTEN_EVENT_KEYPRESS, false);
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deferred_key_event.key.unicode = key_event->charCode;
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static_cast<OS_JavaScript *>(user_data)->push_input(deferred_key_event);
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_input->parse_input_event(deferred_key_event);
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return true;
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}
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@ -186,7 +287,7 @@ static EM_BOOL _keyup_callback(int event_type, const EmscriptenKeyboardEvent *ke
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InputEvent ev = _setup_key_event(key_event);
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ev.key.pressed = false;
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static_cast<OS_JavaScript *>(user_data)->push_input(ev);
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_input->parse_input_event(ev);
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return ev.key.scancode != KEY_UNKNOWN && ev.key.scancode != 0;
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}
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@ -288,6 +389,7 @@ void OS_JavaScript::initialize(const VideoMode &p_desired, int p_video_driver, i
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physics_2d_server->init();
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input = memnew(InputDefault);
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_input = input;
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#define EM_CHECK(ev) \
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if (result != EMSCRIPTEN_RESULT_SUCCESS) \
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@ -300,6 +402,10 @@ void OS_JavaScript::initialize(const VideoMode &p_desired, int p_video_driver, i
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EM_CHECK(ev)
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EMSCRIPTEN_RESULT result;
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SET_EM_CALLBACK(mousemove, _mousemove_callback)
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SET_EM_CALLBACK(mousedown, _mousebutton_callback)
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SET_EM_CALLBACK(mouseup, _mousebutton_callback)
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SET_EM_CALLBACK(wheel, _wheel_callback)
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SET_EM_CALLBACK(keydown, _keydown_callback)
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SET_EM_CALLBACK(keypress, _keypress_callback)
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SET_EM_CALLBACK(keyup, _keyup_callback)
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@ -544,18 +650,6 @@ void OS_JavaScript::main_loop_focusin() {
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//audio_driver_javascript.set_pause(false);
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}
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void OS_JavaScript::push_input(const InputEvent &p_ev) {
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InputEvent ev = p_ev;
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ev.ID = last_id++;
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if (ev.type == InputEvent::MOUSE_MOTION) {
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input->set_mouse_pos(Point2(ev.mouse_motion.x, ev.mouse_motion.y));
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} else if (ev.type == InputEvent::MOUSE_BUTTON) {
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last_button_mask = ev.mouse_button.button_mask;
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}
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input->parse_input_event(p_ev);
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}
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void OS_JavaScript::process_touch(int p_what, int p_pointer, const Vector<TouchPos> &p_points) {
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// print_line("ev: "+itos(p_what)+" pnt: "+itos(p_pointer)+" pointc: "+itos(p_points.size()));
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