Mercurial > molko
view molko-js/src/js-clock.c @ 205:6b29e487da13
js: enable Molko.Music API
author | David Demelier <markand@malikania.fr> |
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date | Tue, 10 Nov 2020 10:10:56 +0100 |
parents | dd77bfb38df2 |
children |
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/* * js-clock.c -- track elapsed time (Javascript bindings) * * Copyright (c) 2020 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> #include <stdlib.h> #include <duktape.h> #include <core/alloc.h> #include <core/clock.h> #include "js.h" #include "js-window.h" #define SYMBOL DUK_HIDDEN_SYMBOL("molko::clock") static struct clock * js_clock_this(duk_context *ctx) { struct clock *clock; duk_push_this(ctx); duk_get_prop_string(ctx, -1, SYMBOL); clock = duk_to_pointer(ctx, -1); duk_pop_n(ctx, 2); if (!clock) duk_error(ctx, DUK_ERR_TYPE_ERROR, "Not a Clock object"); return clock; } static duk_ret_t js_clock_getElapsed(duk_context *ctx) { duk_push_uint(ctx, clock_elapsed(js_clock_this(ctx))); return 1; } static duk_ret_t js_clock_new(duk_context *ctx) { if (!duk_is_constructor_call(ctx)) duk_error(ctx, DUK_ERR_TYPE_ERROR, "Clock must be new-constructed"); duk_push_this(ctx); duk_push_pointer(ctx, alloc_zero(1, sizeof (struct clock))); duk_put_prop_string(ctx, -2, SYMBOL); duk_push_string(ctx, "elapsed"); duk_push_c_function(ctx, js_clock_getElapsed, 0); duk_def_prop(ctx, -3, DUK_DEFPROP_HAVE_GETTER); duk_pop(ctx); return 0; } static duk_ret_t js_clock_start(duk_context *ctx) { clock_start(js_clock_this(ctx)); return 0; } static duk_ret_t js_clock_finish(duk_context *ctx) { duk_get_prop_string(ctx, 0, SYMBOL); free(duk_to_pointer(ctx, -1)); duk_pop(ctx); duk_del_prop_string(ctx, 0, SYMBOL); return 0; } static const duk_function_list_entry methods[] = { { "start", js_clock_start, 0 }, { NULL, NULL, 0 } }; void js_clock_load(duk_context *ctx) { assert(ctx); duk_push_global_object(ctx); duk_get_prop_string(ctx, -1, "Molko"); duk_push_c_function(ctx, js_clock_new, 0); duk_push_object(ctx); duk_put_function_list(ctx, -1, methods); duk_push_c_function(ctx, js_clock_finish, 1); duk_set_finalizer(ctx, -2); duk_put_prop_string(ctx, -2, "prototype"); duk_put_prop_string(ctx, -2, "Clock"); duk_pop_n(ctx, 2); }