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// Copyright 2015 The Emscripten Authors. All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License. Both these licenses can be
// found in the LICENSE file.
#include <assert.h>
#include <stdio.h>
#include <emscripten/emscripten.h>
#include <emscripten/eventloop.h>
#include <emscripten/html5.h>
static int result = 1;
// When running PROXY_TO_WORKER mode that return code of key event handlers
// is not honored (since the handlers are run asyncronously in the worker).
// Instead `shouldPreventDefault` in `proxyClient.js` returns true for all keys
// except backspace and tab.
//
// Therefore where we expect the keypress callback to be prevented for '\b'
// but not for 'A'.
bool keydown_callback(int eventType, const EmscriptenKeyboardEvent *e, void *userData) {
printf("got keydown: %d\n", e->keyCode);
if ((e->keyCode == 'A') || (e->keyCode == '\b')) {
result *= 2;
} else {
printf("done: result=%d\n", result);
emscripten_force_exit(result);
}
return 0;
}
bool keypress_callback(int eventType, const EmscriptenKeyboardEvent *e, void *userData) {
printf("got keypress: %d\n", e->keyCode);
// preventDefault should have been set for the backspace key so we should
// never get that here.
assert(e->keyCode != '\b');
result *= 3;
return 0;
}
bool keyup_callback(int eventType, const EmscriptenKeyboardEvent *e, void *userData) {
printf("got keyup: %d\n", e->keyCode);
if ((e->keyCode == 'A') || (e->keyCode == '\b')) {
result *= 5;
}
return 0;
}
int main(int argc, char **argv) {
printf("in main\n");
emscripten_set_keydown_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, 0, 1, keydown_callback);
emscripten_set_keypress_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, 0, 1, keypress_callback);
emscripten_set_keyup_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, 0, 1, keyup_callback);
emscripten_runtime_keepalive_push();
return 0;
}
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