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#include <stdio.h>
#include <emscripten.h>
#include <string.h>
#include <emscripten/html5.h>
void report_result(int result)
{
if (result == 0) {
printf("Test successful!\n");
} else {
printf("Test failed!\n");
}
#ifdef REPORT_RESULT
REPORT_RESULT();
#endif
}
static inline const char *emscripten_event_type_to_string(int eventType) {
const char *events[] = { "(invalid)", "(none)", "keypress", "keydown", "keyup", "click", "mousedown", "mouseup", "dblclick", "mousemove", "wheel", "resize",
"scroll", "blur", "focus", "focusin", "focusout", "deviceorientation", "devicemotion", "orientationchange", "fullscreenchange", "pointerlockchange",
"visibilitychange", "touchstart", "touchend", "touchmove", "touchcancel", "gamepadconnected", "gamepaddisconnected", "beforeunload",
"batterychargingchange", "batterylevelchange", "webglcontextlost", "webglcontextrestored", "(invalid)" };
++eventType;
if (eventType < 0) eventType = 0;
if (eventType >= sizeof(events)/sizeof(events[0])) eventType = sizeof(events)/sizeof(events[0])-1;
return events[eventType];
}
const char *emscripten_result_to_string(EMSCRIPTEN_RESULT result) {
if (result == EMSCRIPTEN_RESULT_SUCCESS) return "EMSCRIPTEN_RESULT_SUCCESS";
if (result == EMSCRIPTEN_RESULT_DEFERRED) return "EMSCRIPTEN_RESULT_DEFERRED";
if (result == EMSCRIPTEN_RESULT_NOT_SUPPORTED) return "EMSCRIPTEN_RESULT_NOT_SUPPORTED";
if (result == EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED) return "EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED";
if (result == EMSCRIPTEN_RESULT_INVALID_TARGET) return "EMSCRIPTEN_RESULT_INVALID_TARGET";
if (result == EMSCRIPTEN_RESULT_UNKNOWN_TARGET) return "EMSCRIPTEN_RESULT_UNKNOWN_TARGET";
if (result == EMSCRIPTEN_RESULT_INVALID_PARAM) return "EMSCRIPTEN_RESULT_INVALID_PARAM";
if (result == EMSCRIPTEN_RESULT_FAILED) return "EMSCRIPTEN_RESULT_FAILED";
if (result == EMSCRIPTEN_RESULT_NO_DATA) return "EMSCRIPTEN_RESULT_NO_DATA";
return "Unknown EMSCRIPTEN_RESULT!";
}
#define TEST_RESULT(x) if (ret != EMSCRIPTEN_RESULT_SUCCESS) printf("%s returned %s.\n", #x, emscripten_result_to_string(ret));
int gotClick = 0;
int gotMouseDown = 0;
int gotMouseUp = 0;
int gotDblClick = 0;
int gotMouseMove = 0;
int gotWheel = 0;
void instruction()
{
if (!gotClick) { printf("Please click on the canvas.\n"); return; }
if (!gotMouseDown) { printf("Please click on the canvas.\n"); return; }
if (!gotMouseUp) { printf("Please click on the canvas.\n"); return; }
if (!gotDblClick) { printf("Please double-click on the canvas.\n"); return; }
if (!gotMouseMove) { printf("Please move the mouse on the canvas.\n"); return; }
if (!gotWheel) { printf("Please scroll the mouse wheel.\n"); return; }
if (gotClick && gotMouseDown && gotMouseUp && gotDblClick && gotMouseMove && gotWheel) report_result(0);
}
EM_BOOL mouse_callback(int eventType, const EmscriptenMouseEvent *e, void *userData)
{
/*
printf("%s, screen: (%ld,%ld), client: (%ld,%ld),%s%s%s%s button: %hu, buttons: %hu, movement: (%ld,%ld), canvas: (%ld,%ld)\n",
emscripten_event_type_to_string(eventType), e->screenX, e->screenY, e->clientX, e->clientY,
e->ctrlKey ? " CTRL" : "", e->shiftKey ? " SHIFT" : "", e->altKey ? " ALT" : "", e->metaKey ? " META" : "",
e->button, e->buttons, e->movementX, e->movementY, e->canvasX, e->canvasY);
*/
if (eventType == EMSCRIPTEN_EVENT_CLICK) gotClick = 1;
if (eventType == EMSCRIPTEN_EVENT_MOUSEDOWN) gotMouseDown = 1;
if (eventType == EMSCRIPTEN_EVENT_MOUSEUP) gotMouseUp = 1;
if (eventType == EMSCRIPTEN_EVENT_DBLCLICK) gotDblClick = 1;
if (eventType == EMSCRIPTEN_EVENT_MOUSEMOVE && (e->movementX != 0 || e->movementY != 0)) gotMouseMove = 1;
instruction();
return 0;
}
EM_BOOL wheel_callback(int eventType, const EmscriptenWheelEvent *e, void *userData)
{
/*
printf("%s, screen: (%ld,%ld), client: (%ld,%ld),%s%s%s%s button: %hu, buttons: %hu, canvas: (%ld,%ld), delta:(%g,%g,%g), deltaMode:%lu\n",
emscripten_event_type_to_string(eventType), e->mouse.screenX, e->mouse.screenY, e->mouse.clientX, e->mouse.clientY,
e->mouse.ctrlKey ? " CTRL" : "", e->mouse.shiftKey ? " SHIFT" : "", e->mouse.altKey ? " ALT" : "", e->mouse.metaKey ? " META" : "",
e->mouse.button, e->mouse.buttons, e->mouse.canvasX, e->mouse.canvasY,
(float)e->deltaX, (float)e->deltaY, (float)e->deltaZ, e->deltaMode);
*/
if (e->deltaY != 0.f)
gotWheel = 1;
instruction();
return 0;
}
int main()
{
EMSCRIPTEN_RESULT ret = emscripten_set_click_callback(0, 0, 1, mouse_callback);
TEST_RESULT(emscripten_set_click_callback);
ret = emscripten_set_mousedown_callback(0, 0, 1, mouse_callback);
TEST_RESULT(emscripten_set_mousedown_callback);
ret = emscripten_set_mouseup_callback(0, 0, 1, mouse_callback);
TEST_RESULT(emscripten_set_mouseup_callback);
ret = emscripten_set_dblclick_callback(0, 0, 1, mouse_callback);
TEST_RESULT(emscripten_set_dblclick_callback);
ret = emscripten_set_mousemove_callback(0, 0, 1, mouse_callback);
TEST_RESULT(emscripten_set_mousemove_callback);
ret = emscripten_set_wheel_callback(0, 0, 1, wheel_callback);
TEST_RESULT(emscripten_set_wheel_callback);
/* For the events to function, one must either call emscripten_set_main_loop or enable Module.noExitRuntime by some other means.
Otherwise the application will exit after leaving main(), and the atexit handlers will clean up all event hooks (by design). */
EM_ASM(Module['noExitRuntime'] = true);
return 0;
}
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