void JSUI::HandleWidgetDeleted(StringHash eventType, VariantMap& eventData)
{
UIWidget* widget = static_cast<UIWidget*>(eventData[WidgetDeleted::P_WIDGET].GetPtr());
if (!widget->JSGetHeapPtr())
return;
duk_push_global_stash(ctx_);
duk_get_prop_string(ctx_, -1, "__jsui_widgetkeepalive");
// can't use instance as key, as this coerces to [Object] for
// string property, pointer will be string representation of
// address, so, unique key
duk_push_pointer(ctx_, widget);
duk_del_prop(ctx_, -2);
duk_pop_2(ctx_);
}
void JSUI::HandleWidgetLoaded(StringHash eventType, VariantMap& eventData)
{
using namespace WidgetLoaded;
UIWidget* widget = static_cast<UIWidget*>(eventData[P_WIDGET].GetPtr());
if (!widget)
return;
void* heapptr = widget->JSGetHeapPtr();
if (!heapptr)
return;
TBWidget* tbwidget = widget->GetInternalWidget();
assert(tbwidget);
// all widgets with id's are wrapped, so that event handlers are bubbled up properly
// note that all js widget object representations are kept alive in HandleObjectAdded
// when pushed into the VM
PODVector<TBWidget*> widgets;
GatherWidgets(tbwidget, widgets);
UI* ui = GetSubsystem<UI>();
for (unsigned i = 0; i < widgets.Size(); i++)
{
UIWidget* o = ui->WrapWidget(widgets.At(i));
if (!o)
continue;
js_push_class_object_instance(ctx_, o);
}
}
void JSUI::HandleWidgetEvent(StringHash eventType, VariantMap& eventData)
{
using namespace WidgetEvent;
UIWidget* handler = static_cast<UIWidget*>(eventData[P_HANDLER].GetPtr());
UIWidget* target = static_cast<UIWidget*>(eventData[P_TARGET].GetPtr());
if (!handler)
return;
void* handlerHeapPtr = handler->JSGetHeapPtr();
if (!handlerHeapPtr)
return;
// if we have a target, however no corresponding JS object return
if (target && !target->JSGetHeapPtr())
return;
tb::EVENT_TYPE type = (tb::EVENT_TYPE) eventData[P_TYPE].GetUInt();
if (type == tb::EVENT_TYPE_CHANGED)
{
int top = duk_get_top(ctx_);
duk_push_heapptr(ctx_, handlerHeapPtr);
duk_get_prop_string(ctx_, -1, "onChanged");
if (duk_is_callable(ctx_, -1)) {
if (duk_pcall(ctx_, 0) != 0)
{
JSVM::GetJSVM(nullptr)->SendJSErrorEvent();
}
else
{
if (duk_is_boolean(ctx_, -1) && duk_to_boolean(ctx_, -1))
eventData[P_HANDLED] = true;
}
}
duk_pop_n(ctx_, 2);
assert(top == duk_get_top(ctx_));
return;
}
// general event handler, bubbles to (wrapped) parent widgets unless handled (returns true)
if (type == tb::EVENT_TYPE_CLICK)
{
int top = duk_get_top(ctx_);
duk_push_heapptr(ctx_, handlerHeapPtr);
duk_get_prop_string(ctx_, -1, "onEvent");
if (duk_is_callable(ctx_, -1)) {
PushWidgetEventObject(eventData);
duk_call(ctx_, 1);
if (duk_is_boolean(ctx_, -1) && duk_to_boolean(ctx_, -1))
eventData[P_HANDLED] = true;
}
duk_pop_n(ctx_, 2);
assert(top == duk_get_top(ctx_));
}
// specific event handlers
if (type == tb::EVENT_TYPE_CLICK && handler == target)
{
int top = duk_get_top(ctx_);
duk_push_heapptr(ctx_, handlerHeapPtr);
duk_get_prop_string(ctx_, -1, "onClick");
if (duk_is_callable(ctx_, -1)) {
if (duk_pcall(ctx_, 0) != 0)
{
JSVM::GetJSVM(nullptr)->SendJSErrorEvent();
}
else
{
if (duk_is_boolean(ctx_, -1) && duk_to_boolean(ctx_, -1))
eventData[P_HANDLED] = true;
}
}
duk_pop_n(ctx_, 2);
assert(top == duk_get_top(ctx_));
return;
}
}
void JSUI::PushWidgetEventObject(VariantMap& eventData)
{
using namespace WidgetEvent;
// create the event object
duk_push_object(ctx_);
// target
UIWidget* target = static_cast<UIWidget*>(eventData[P_TARGET].GetPtr());
if (target)
{
assert(target->JSGetHeapPtr());
duk_push_heapptr(ctx_, target->JSGetHeapPtr());
}
else
{
duk_push_null(ctx_);
}
duk_put_prop_string(ctx_, -2, "target");
duk_push_number(ctx_, (duk_double_t) eventData[P_TYPE].GetUInt());
duk_put_prop_string(ctx_, -2, "type");
duk_push_number(ctx_, (duk_double_t) eventData[P_X].GetInt());
duk_put_prop_string(ctx_, -2, "x");
duk_push_number(ctx_, (duk_double_t) eventData[P_Y].GetInt());
duk_put_prop_string(ctx_, -2, "y");
duk_push_number(ctx_, (duk_double_t) eventData[P_DELTAX].GetInt());
duk_put_prop_string(ctx_, -2, "deltaX");
duk_push_number(ctx_, (duk_double_t) eventData[P_DELTAX].GetInt());
duk_put_prop_string(ctx_, -2, "deltaY");
duk_push_number(ctx_, (duk_double_t) eventData[P_COUNT].GetInt());
duk_put_prop_string(ctx_, -2, "count");
duk_push_number(ctx_, (duk_double_t) eventData[P_KEY].GetInt());
duk_put_prop_string(ctx_, -2, "key");
duk_push_number(ctx_, (duk_double_t) eventData[P_SPECIALKEY].GetInt());
duk_put_prop_string(ctx_, -2, "specialKey");
duk_push_number(ctx_, (duk_double_t) eventData[P_MODIFIERKEYS].GetInt());
duk_put_prop_string(ctx_, -2, "modifierKeys");
duk_push_number(ctx_, (duk_double_t) eventData[P_MODIFIERKEYS].GetInt());
duk_put_prop_string(ctx_, -2, "modifierKeys");
String id = eventData[P_REFID].GetString();
duk_push_string(ctx_, id.CString() );
duk_put_prop_string(ctx_, -2, "refID");
duk_push_boolean(ctx_,eventData[P_TOUCH].GetBool() ? 1 : 0);
duk_put_prop_string(ctx_, -2, "touch");
}