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JSCore.cpp
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298 lines (232 loc) · 8.28 KB
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//
// Copyright (c) 2014-2015, THUNDERBEAST GAMES LLC All rights reserved
//
// 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 <Atomic/Core/ProcessUtils.h>
#include <Atomic/Core/Profiler.h>
#include "JSCore.h"
#include "JSEventHelper.h"
#include "JSVM.h"
namespace Atomic
{
static int Object_SubscribeToEvent(duk_context* ctx)
{
int top = duk_get_top(ctx);
Object* sender = NULL;
StringHash eventType = StringHash::ZERO;
// if we have a single argument, it is event meta data
if (top == 1)
{
if (duk_is_object(ctx, 0))
{
duk_get_prop_string(ctx, 0, "_callback");
duk_get_prop_string(ctx, 0, "_eventType");
if (duk_is_string(ctx, -1) && duk_is_function(ctx, -2))
{
duk_replace(ctx, 0);
top = duk_get_top(ctx);
}
}
if (top != 2)
{
duk_push_string(ctx, "Object.subscribeToEvent() - Bad meta data");
duk_throw(ctx);
}
}
// unwrap event data
if ( top == 2 && duk_is_object(ctx, 0) && duk_is_object(ctx, 1))
{
duk_get_prop_string(ctx, 1, "_callback");
duk_get_prop_string(ctx, 1, "_eventType");
if (duk_is_string(ctx, -1) && duk_is_function(ctx, -2))
{
duk_replace(ctx, 1);
top = duk_get_top(ctx);
}
if (top != 3)
{
duk_push_string(ctx, "Object.subscribeToEvent() - Bad sender meta data");
duk_throw(ctx);
}
}
if ( top == 2 ) // General notification: subscribeToEvent("ScreenMode", function() {});
{
if (duk_is_string(ctx, 0) && duk_is_function(ctx, 1))
{
eventType = duk_to_string(ctx, 0);
} else if(duk_is_number(ctx, 0) && duk_is_function(ctx, 1)) {
eventType = StringHash(duk_to_number(ctx, 0));
}
}
else if (top == 3) // Listen to specific object sender subscribeToEvent(graphics, "ScreenMode", function() {});
{
if (duk_is_object(ctx, 0) && duk_is_string(ctx, 1) && duk_is_function(ctx, 2))
{
sender = js_to_class_instance<Object>(ctx, 0, 0);
eventType = duk_to_string(ctx, 1);
}
else if (duk_is_object(ctx, 0) && duk_is_number(ctx, 1) && duk_is_function(ctx, 2)) {
sender = js_to_class_instance<Object>(ctx, 0, 0);
eventType = StringHash(duk_to_number(ctx, 1));
}
}
if ( eventType == StringHash::ZERO)
{
duk_push_string(ctx, "Object.subscribeToEvent() - Bad Arguments");
duk_throw(ctx);
}
duk_push_this(ctx);
// event receiver
Object* object = js_to_class_instance<Object>(ctx, -1, 0);
duk_get_prop_string(ctx, -1, "__eventHelper");
// need to setup the handler
if (duk_is_null_or_undefined(ctx, -1))
{
duk_pop(ctx); // pop null or undefined
// construct a new event helper
JSEventHelper* eventHelper = new JSEventHelper(object->GetContext(), object);
eventHelper->SetInstantiationType(INSTANTIATION_JAVASCRIPT);
js_push_class_object_instance(ctx, eventHelper);
duk_push_object(ctx);
duk_put_prop_string(ctx, -2, "__eventHelperFunctions");
// dup so when we set the helper is left on stack
duk_dup_top(ctx);
duk_put_prop_string(ctx, -3, "__eventHelper");
}
JSEventHelper* helper = js_to_class_instance<JSEventHelper>(ctx, -1, 0);
duk_get_prop_string(ctx, -1, "__eventHelperFunctions");
assert(duk_is_object(ctx, -1));
assert(duk_is_function(ctx, sender ? 2 : 1));
duk_dup(ctx, sender ? 2 : 1);
duk_put_prop_string(ctx, -2, eventType.ToString().CString());
duk_pop(ctx);
if (sender)
helper->AddEventHandler(sender, eventType);
else
helper->AddEventHandler(eventType);
return 0;
}
static int Object_SendEvent(duk_context* ctx)
{
int top = duk_get_top(ctx);
duk_push_this(ctx);
// event sender
Object* sender = js_to_class_instance<Object>(ctx, -1, 0);
if (top == 1)
{
if (duk_is_string(ctx, 0))
{
sender->SendEvent(duk_to_string(ctx, 0));
} else if (duk_is_object(ctx, 0)) {
duk_get_prop_string(ctx, 0, "_callbackData");
duk_get_prop_string(ctx, 0, "_eventType");
if (!duk_is_string(ctx, -1))
{
duk_push_string(ctx, "Object.sendEvent() - Bad callback meta data");
duk_throw(ctx);
}
if (duk_is_object(ctx, -2))
{
VariantMap sendEventVMap;
js_object_to_variantmap(ctx, -2, sendEventVMap);
sender->SendEvent(duk_to_string(ctx, -1), sendEventVMap);
} else {
sender->SendEvent(duk_to_string(ctx, -1));
}
} else {
duk_push_string(ctx, "Object.sendEvent() - Bad callback meta data");
duk_throw(ctx);
}
}
else if (top == 2)
{
if (duk_is_object(ctx, 1)) {
VariantMap sendEventVMap;
js_object_to_variantmap(ctx, 1, sendEventVMap);
sender->SendEvent(duk_to_string(ctx, 0), sendEventVMap);
}
}
return 0;
}
static int Atomic_GetArguments(duk_context* ctx)
{
duk_push_array(ctx);
for (unsigned i = 0; i < GetArguments().Size(); i++)
{
duk_push_string(ctx, GetArguments()[i].CString());
duk_put_prop_index(ctx, -2, i);
}
return 1;
}
static int Profiler_BeginBlock(duk_context* ctx)
{
#if ATOMIC_PROFILING
// Get the Profiler instance
duk_push_this(ctx);
Profiler* profiler = js_to_class_instance<Profiler>(ctx, -1, 0);
duk_pop(ctx);
// early out, this should never happen
if (!profiler)
{
return 0;
}
// get the number of args
duk_idx_t top = duk_get_top(ctx);
// we need at least 3
if ( top < 3)
{
return 0;
}
// parse args
const char* name = duk_require_string(ctx, 0);
const char* filename = duk_require_string(ctx, 1);
int line = duk_require_number(ctx, 2);
unsigned argb = (top > 3) ? (unsigned) duk_require_number(ctx, 3) : PROFILER_COLOR_DEFAULT;
unsigned char status = (top > 4) ? (unsigned) duk_require_number(ctx, 4) : ProfilerBlockStatus::ON;
profiler->BeginBlock(name, filename, line, argb, status);
#else
static bool warned = false;
if (!warned)
{
warned = true;
ATOMIC_LOGWARNING("Engine is built without profiler support.");
}
#endif
return 0;
}
void jsapi_init_core(JSVM* vm)
{
duk_context* ctx = vm->GetJSContext();
duk_get_global_string(ctx, "Atomic");
duk_push_c_function(ctx, Atomic_GetArguments, 0);
duk_put_prop_string(ctx, -2, "getArguments");
duk_pop(ctx); // pop Atomic object
js_class_get_prototype(ctx, "Atomic", "AObject");
duk_push_c_function(ctx, Object_SubscribeToEvent, DUK_VARARGS);
duk_put_prop_string(ctx, -2, "subscribeToEvent");
duk_push_c_function(ctx, Object_SendEvent, DUK_VARARGS);
duk_put_prop_string(ctx, -2, "sendEvent");
duk_pop(ctx); // pop AObject prototype
js_class_get_prototype(ctx, "Atomic", "Profiler");
duk_push_c_function(ctx, Profiler_BeginBlock, DUK_VARARGS);
duk_put_prop_string(ctx, -2, "beginBlock");
duk_pop(ctx); // pop Profiler prototype
}
}