Index: ps/trunk/source/gui/ObjectBases/IGUIObject.cpp =================================================================== --- ps/trunk/source/gui/ObjectBases/IGUIObject.cpp (revision 23772) +++ ps/trunk/source/gui/ObjectBases/IGUIObject.cpp (revision 23773) @@ -1,541 +1,541 @@ /* Copyright (C) 2019 Wildfire Games. * This file is part of 0 A.D. * * 0 A.D. is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * 0 A.D. is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with 0 A.D. If not, see . */ #include "precompiled.h" #include "IGUIObject.h" #include "gui/CGUI.h" #include "gui/CGUISetting.h" #include "js/Conversions.h" #include "ps/CLogger.h" #include "ps/GameSetup/Config.h" #include "ps/Profile.h" #include "scriptinterface/ScriptInterface.h" #include "soundmanager/ISoundManager.h" const CStr IGUIObject::EventNameMouseEnter = "MouseEnter"; const CStr IGUIObject::EventNameMouseMove = "MouseMove"; const CStr IGUIObject::EventNameMouseLeave = "MouseLeave"; IGUIObject::IGUIObject(CGUI& pGUI) : m_pGUI(pGUI), m_pParent(), m_MouseHovering(), m_LastClickTime(), m_Enabled(), m_Hidden(), m_Size(), m_Style(), m_Hotkey(), m_Z(), m_Absolute(), m_Ghost(), m_AspectRatio(), m_Tooltip(), m_TooltipStyle() { RegisterSetting("enabled", m_Enabled); RegisterSetting("hidden", m_Hidden); RegisterSetting("size", m_Size); RegisterSetting("style", m_Style); RegisterSetting("hotkey", m_Hotkey); RegisterSetting("z", m_Z); RegisterSetting("absolute", m_Absolute); RegisterSetting("ghost", m_Ghost); RegisterSetting("aspectratio", m_AspectRatio); RegisterSetting("tooltip", m_Tooltip); RegisterSetting("tooltip_style", m_TooltipStyle); // Setup important defaults // TODO: Should be in the default style? SetSetting("hidden", false, true); SetSetting("ghost", false, true); SetSetting("enabled", true, true); SetSetting("absolute", true, true); } IGUIObject::~IGUIObject() { for (const std::pair& p : m_Settings) delete p.second; if (!m_ScriptHandlers.empty()) JS_RemoveExtraGCRootsTracer(m_pGUI.GetScriptInterface()->GetJSRuntime(), Trace, this); // m_Children is deleted along all other GUI Objects in the CGUI destructor } void IGUIObject::AddChild(IGUIObject& pChild) { pChild.SetParent(this); m_Children.push_back(&pChild); } template void IGUIObject::RegisterSetting(const CStr& Name, T& Value) { if (SettingExists(Name)) LOGERROR("The setting '%s' already exists on the object '%s'!", Name.c_str(), GetPresentableName().c_str()); else m_Settings.emplace(Name, new CGUISetting(*this, Name, Value)); } bool IGUIObject::SettingExists(const CStr& Setting) const { return m_Settings.find(Setting) != m_Settings.end(); } template T& IGUIObject::GetSetting(const CStr& Setting) { return static_cast* >(m_Settings.at(Setting))->m_pSetting; } template const T& IGUIObject::GetSetting(const CStr& Setting) const { return static_cast* >(m_Settings.at(Setting))->m_pSetting; } bool IGUIObject::SetSettingFromString(const CStr& Setting, const CStrW& Value, const bool SendMessage) { const std::map::iterator it = m_Settings.find(Setting); if (it == m_Settings.end()) { LOGERROR("GUI object '%s' has no property called '%s', can't set parse and set value '%s'", GetPresentableName().c_str(), Setting.c_str(), Value.ToUTF8().c_str()); return false; } return it->second->FromString(Value, SendMessage); } template void IGUIObject::SetSetting(const CStr& Setting, T& Value, const bool SendMessage) { PreSettingChange(Setting); static_cast* >(m_Settings.at(Setting))->m_pSetting = std::move(Value); SettingChanged(Setting, SendMessage); } template void IGUIObject::SetSetting(const CStr& Setting, const T& Value, const bool SendMessage) { PreSettingChange(Setting); static_cast* >(m_Settings.at(Setting))->m_pSetting = Value; SettingChanged(Setting, SendMessage); } void IGUIObject::PreSettingChange(const CStr& Setting) { if (Setting == "hotkey") m_pGUI.UnsetObjectHotkey(this, GetSetting(Setting)); } void IGUIObject::SettingChanged(const CStr& Setting, const bool SendMessage) { if (Setting == "size") { // If setting was "size", we need to re-cache itself and all children RecurseObject(nullptr, &IGUIObject::UpdateCachedSize); } else if (Setting == "hidden") { // Hiding an object requires us to reset it and all children if (m_Hidden) RecurseObject(nullptr, &IGUIObject::ResetStates); } else if (Setting == "hotkey") m_pGUI.SetObjectHotkey(this, GetSetting(Setting)); if (SendMessage) { SGUIMessage msg(GUIM_SETTINGS_UPDATED, Setting); HandleMessage(msg); } } bool IGUIObject::IsMouseOver() const { return m_CachedActualSize.PointInside(m_pGUI.GetMousePos()); } bool IGUIObject::MouseOverIcon() { return false; } void IGUIObject::UpdateMouseOver(IGUIObject* const& pMouseOver) { if (pMouseOver == this) { if (!m_MouseHovering) SendMouseEvent(GUIM_MOUSE_ENTER,EventNameMouseEnter); m_MouseHovering = true; SendMouseEvent(GUIM_MOUSE_OVER, EventNameMouseMove); } else { if (m_MouseHovering) { m_MouseHovering = false; SendMouseEvent(GUIM_MOUSE_LEAVE, EventNameMouseLeave); } } } void IGUIObject::ChooseMouseOverAndClosest(IGUIObject*& pObject) { if (!IsMouseOver()) return; // Check if we've got competition at all if (pObject == nullptr) { pObject = this; return; } // Or if it's closer if (GetBufferedZ() >= pObject->GetBufferedZ()) { pObject = this; return; } } IGUIObject* IGUIObject::GetParent() const { // Important, we're not using GetParent() for these // checks, that could screw it up if (m_pParent && m_pParent->m_pParent == nullptr) return nullptr; return m_pParent; } void IGUIObject::ResetStates() { // Notify the gui that we aren't hovered anymore UpdateMouseOver(nullptr); } void IGUIObject::UpdateCachedSize() { // If absolute="false" and the object has got a parent, // use its cached size instead of the screen. Notice // it must have just been cached for it to work. if (!m_Absolute && m_pParent && !IsRootObject()) m_CachedActualSize = m_Size.GetSize(m_pParent->m_CachedActualSize); else m_CachedActualSize = m_Size.GetSize(CRect(0.f, 0.f, g_xres / g_GuiScale, g_yres / g_GuiScale)); // In a few cases, GUI objects have to resize to fill the screen // but maintain a constant aspect ratio. // Adjust the size to be the max possible, centered in the original size: if (m_AspectRatio) { if (m_CachedActualSize.GetWidth() > m_CachedActualSize.GetHeight() * m_AspectRatio) { float delta = m_CachedActualSize.GetWidth() - m_CachedActualSize.GetHeight() * m_AspectRatio; m_CachedActualSize.left += delta/2.f; m_CachedActualSize.right -= delta/2.f; } else { float delta = m_CachedActualSize.GetHeight() - m_CachedActualSize.GetWidth() / m_AspectRatio; m_CachedActualSize.bottom -= delta/2.f; m_CachedActualSize.top += delta/2.f; } } } void IGUIObject::LoadStyle(const CStr& StyleName) { if (!m_pGUI.HasStyle(StyleName)) debug_warn(L"IGUIObject::LoadStyle failed"); // The default style may specify settings for any GUI object. // Other styles are reported if they specify a Setting that does not exist, // so that the XML author is informed and can correct the style. for (const std::pair& p : m_pGUI.GetStyle(StyleName).m_SettingsDefaults) { if (SettingExists(p.first)) SetSettingFromString(p.first, p.second, true); else if (StyleName != "default") LOGWARNING("GUI object has no setting \"%s\", but the style \"%s\" defines it", p.first, StyleName.c_str()); } } float IGUIObject::GetBufferedZ() const { if (m_Absolute) return m_Z; if (GetParent()) return GetParent()->GetBufferedZ() + m_Z; // In philosophy, a parentless object shouldn't be able to have a relative sizing, // but we'll accept it so that absolute can be used as default without a complaint. // Also, you could consider those objects children to the screen resolution. return m_Z; } void IGUIObject::RegisterScriptHandler(const CStr& eventName, const CStr& Code, CGUI& pGUI) { JSContext* cx = pGUI.GetScriptInterface()->GetContext(); JSAutoRequest rq(cx); JS::RootedValue globalVal(cx, pGUI.GetGlobalObject()); JS::RootedObject globalObj(cx, &globalVal.toObject()); const int paramCount = 1; const char* paramNames[paramCount] = { "mouse" }; // Location to report errors from CStr CodeName = GetName() + " " + eventName; // Generate a unique name static int x = 0; char buf[64]; sprintf_s(buf, ARRAY_SIZE(buf), "__eventhandler%d (%s)", x++, eventName.c_str()); JS::CompileOptions options(cx); options.setFileAndLine(CodeName.c_str(), 0); options.setIsRunOnce(false); JS::RootedFunction func(cx); JS::AutoObjectVector emptyScopeChain(cx); if (!JS::CompileFunction(cx, emptyScopeChain, options, buf, paramCount, paramNames, Code.c_str(), Code.length(), &func)) { LOGERROR("RegisterScriptHandler: Failed to compile the script for %s", eventName.c_str()); return; } JS::RootedObject funcObj(cx, JS_GetFunctionObject(func)); SetScriptHandler(eventName, funcObj); } void IGUIObject::SetScriptHandler(const CStr& eventName, JS::HandleObject Function) { if (m_ScriptHandlers.empty()) JS_AddExtraGCRootsTracer(m_pGUI.GetScriptInterface()->GetJSRuntime(), Trace, this); m_ScriptHandlers[eventName] = JS::Heap(Function); } void IGUIObject::UnsetScriptHandler(const CStr& eventName) { std::map >::iterator it = m_ScriptHandlers.find(eventName); if (it == m_ScriptHandlers.end()) return; m_ScriptHandlers.erase(it); if (m_ScriptHandlers.empty()) JS_RemoveExtraGCRootsTracer(m_pGUI.GetScriptInterface()->GetJSRuntime(), Trace, this); } InReaction IGUIObject::SendEvent(EGUIMessageType type, const CStr& eventName) { PROFILE2_EVENT("gui event"); PROFILE2_ATTR("type: %s", eventName.c_str()); PROFILE2_ATTR("object: %s", m_Name.c_str()); SGUIMessage msg(type); HandleMessage(msg); ScriptEvent(eventName); return msg.skipped ? IN_PASS : IN_HANDLED; } InReaction IGUIObject::SendMouseEvent(EGUIMessageType type, const CStr& eventName) { PROFILE2_EVENT("gui mouse event"); PROFILE2_ATTR("type: %s", eventName.c_str()); PROFILE2_ATTR("object: %s", m_Name.c_str()); SGUIMessage msg(type); HandleMessage(msg); JSContext* cx = m_pGUI.GetScriptInterface()->GetContext(); JSAutoRequest rq(cx); // Set up the 'mouse' parameter JS::RootedValue mouse(cx); const CPos& mousePos = m_pGUI.GetMousePos(); ScriptInterface::CreateObject( cx, &mouse, "x", mousePos.x, "y", mousePos.y, "buttons", m_pGUI.GetMouseButtons()); JS::AutoValueVector paramData(cx); paramData.append(mouse); ScriptEvent(eventName, paramData); return msg.skipped ? IN_PASS : IN_HANDLED; } void IGUIObject::ScriptEvent(const CStr& eventName) { ScriptEventWithReturn(eventName); } bool IGUIObject::ScriptEventWithReturn(const CStr& eventName) { if (m_ScriptHandlers.find(eventName) == m_ScriptHandlers.end()) return false; JSContext* cx = m_pGUI.GetScriptInterface()->GetContext(); JSAutoRequest rq(cx); JS::AutoValueVector paramData(cx); return ScriptEventWithReturn(eventName, paramData); } void IGUIObject::ScriptEvent(const CStr& eventName, const JS::HandleValueArray& paramData) { ScriptEventWithReturn(eventName, paramData); } bool IGUIObject::ScriptEventWithReturn(const CStr& eventName, const JS::HandleValueArray& paramData) { std::map >::iterator it = m_ScriptHandlers.find(eventName); if (it == m_ScriptHandlers.end()) return false; JSContext* cx = m_pGUI.GetScriptInterface()->GetContext(); JSAutoRequest rq(cx); JS::RootedObject obj(cx, GetJSObject()); JS::RootedValue handlerVal(cx, JS::ObjectValue(*it->second)); JS::RootedValue result(cx); if (!JS_CallFunctionValue(cx, obj, handlerVal, paramData, &result)) { - JS_ReportError(cx, "Errors executing script event \"%s\"", eventName.c_str()); + LOGERROR("Errors executing script event \"%s\"", eventName.c_str()); return false; } return JS::ToBoolean(result); } void IGUIObject::CreateJSObject() { JSContext* cx = m_pGUI.GetScriptInterface()->GetContext(); JSAutoRequest rq(cx); m_JSObject.init(cx, m_pGUI.GetScriptInterface()->CreateCustomObject("GUIObject")); JS_SetPrivate(m_JSObject.get(), this); RegisterScriptFunctions(); } JSObject* IGUIObject::GetJSObject() { // Cache the object when somebody first asks for it, because otherwise // we end up doing far too much object allocation. if (!m_JSObject.initialized()) CreateJSObject(); return m_JSObject.get(); } bool IGUIObject::IsEnabled() const { return m_Enabled; } bool IGUIObject::IsHidden() const { return m_Hidden; } bool IGUIObject::IsHiddenOrGhost() const { return m_Hidden || m_Ghost; } void IGUIObject::PlaySound(const CStrW& soundPath) const { if (g_SoundManager && !soundPath.empty()) g_SoundManager->PlayAsUI(soundPath.c_str(), false); } CStr IGUIObject::GetPresentableName() const { // __internal(), must be at least 13 letters to be able to be // an internal name if (m_Name.length() <= 12) return m_Name; if (m_Name.substr(0, 10) == "__internal") return CStr("[unnamed object]"); else return m_Name; } void IGUIObject::SetFocus() { m_pGUI.SetFocusedObject(this); } bool IGUIObject::IsFocused() const { return m_pGUI.GetFocusedObject() == this; } bool IGUIObject::IsBaseObject() const { return this == &m_pGUI.GetBaseObject(); } bool IGUIObject::IsRootObject() const { return m_pParent == &m_pGUI.GetBaseObject(); } void IGUIObject::TraceMember(JSTracer* trc) { // Please ensure to adapt the Tracer enabling and disabling in accordance with the GC things traced! for (std::pair>& handler : m_ScriptHandlers) JS_CallObjectTracer(trc, &handler.second, "IGUIObject::m_ScriptHandlers"); } // Instantiate templated functions: // These functions avoid copies by working with a reference and move semantics. #define TYPE(T) \ template void IGUIObject::RegisterSetting(const CStr& Name, T& Value); \ template T& IGUIObject::GetSetting(const CStr& Setting); \ template const T& IGUIObject::GetSetting(const CStr& Setting) const; \ template void IGUIObject::SetSetting(const CStr& Setting, T& Value, const bool SendMessage); \ #include "gui/GUISettingTypes.h" #undef TYPE // Copying functions - discouraged except for primitives. #define TYPE(T) \ template void IGUIObject::SetSetting(const CStr& Setting, const T& Value, const bool SendMessage); \ #define GUITYPE_IGNORE_NONCOPYABLE #include "gui/GUISettingTypes.h" #undef GUITYPE_IGNORE_NONCOPYABLE #undef TYPE Index: ps/trunk/source/gui/Scripting/JSInterface_IGUIObject.cpp =================================================================== --- ps/trunk/source/gui/Scripting/JSInterface_IGUIObject.cpp (revision 23772) +++ ps/trunk/source/gui/Scripting/JSInterface_IGUIObject.cpp (revision 23773) @@ -1,257 +1,257 @@ /* Copyright (C) 2020 Wildfire Games. * This file is part of 0 A.D. * * 0 A.D. is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * 0 A.D. is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with 0 A.D. If not, see . */ #include "precompiled.h" #include "JSInterface_IGUIObject.h" #include "gui/CGUI.h" #include "gui/CGUISetting.h" #include "gui/ObjectBases/IGUIObject.h" #include "scriptinterface/ScriptExtraHeaders.h" #include "scriptinterface/ScriptInterface.h" JSClass JSI_IGUIObject::JSI_class = { "GUIObject", JSCLASS_HAS_PRIVATE, nullptr, JSI_IGUIObject::deleteProperty, JSI_IGUIObject::getProperty, JSI_IGUIObject::setProperty, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr }; JSFunctionSpec JSI_IGUIObject::JSI_methods[] = { JS_FN("toString", JSI_IGUIObject::toString, 0, 0), JS_FN("focus", JSI_IGUIObject::focus, 0, 0), JS_FN("blur", JSI_IGUIObject::blur, 0, 0), JS_FN("getComputedSize", JSI_IGUIObject::getComputedSize, 0, 0), JS_FS_END }; void JSI_IGUIObject::RegisterScriptClass(ScriptInterface& scriptInterface) { scriptInterface.DefineCustomObjectType(&JSI_class, nullptr, 0, nullptr, JSI_methods, nullptr, nullptr); } bool JSI_IGUIObject::getProperty(JSContext* cx, JS::HandleObject obj, JS::HandleId id, JS::MutableHandleValue vp) { JSAutoRequest rq(cx); ScriptInterface* pScriptInterface = ScriptInterface::GetScriptInterfaceAndCBData(cx)->pScriptInterface; IGUIObject* e = ScriptInterface::GetPrivate(cx, obj, &JSI_IGUIObject::JSI_class); if (!e) return false; JS::RootedValue idval(cx); if (!JS_IdToValue(cx, id, &idval)) return false; std::string propName; if (!ScriptInterface::FromJSVal(cx, idval, propName)) return false; // Skip registered functions and inherited properties // including JSInterfaces of derived classes if (propName == "constructor" || propName == "prototype" || propName == "toString" || propName == "toJSON" || propName == "focus" || propName == "blur" || propName == "getTextSize" || propName == "getComputedSize" ) return true; // Use onWhatever to access event handlers if (propName.substr(0, 2) == "on") { CStr eventName(propName.substr(2)); std::map>::iterator it = e->m_ScriptHandlers.find(eventName); if (it == e->m_ScriptHandlers.end()) vp.setNull(); else vp.setObject(*it->second.get()); return true; } if (propName == "parent") { IGUIObject* parent = e->GetParent(); if (parent) vp.set(JS::ObjectValue(*parent->GetJSObject())); else vp.set(JS::NullValue()); return true; } else if (propName == "children") { ScriptInterface::CreateArray(cx, vp); for (size_t i = 0; i < e->m_Children.size(); ++i) pScriptInterface->SetPropertyInt(vp, i, e->m_Children[i]); return true; } else if (propName == "name") { ScriptInterface::ToJSVal(cx, vp, e->GetName()); return true; } else if (e->SettingExists(propName)) { e->m_Settings[propName]->ToJSVal(cx, vp); return true; } - JS_ReportError(cx, "Property '%s' does not exist!", propName.c_str()); + LOGERROR("Property '%s' does not exist!", propName.c_str()); return false; } bool JSI_IGUIObject::setProperty(JSContext* cx, JS::HandleObject obj, JS::HandleId id, JS::MutableHandleValue vp, JS::ObjectOpResult& result) { IGUIObject* e = ScriptInterface::GetPrivate(cx, obj, &JSI_IGUIObject::JSI_class); if (!e) return result.fail(JSMSG_NOT_NONNULL_OBJECT); JSAutoRequest rq(cx); JS::RootedValue idval(cx); if (!JS_IdToValue(cx, id, &idval)) return result.fail(JSMSG_NOT_NONNULL_OBJECT); std::string propName; if (!ScriptInterface::FromJSVal(cx, idval, propName)) return result.fail(JSMSG_UNDEFINED_PROP); if (propName == "name") { std::string value; if (!ScriptInterface::FromJSVal(cx, vp, value)) return result.fail(JSMSG_UNDEFINED_PROP); e->SetName(value); return result.succeed(); } JS::RootedObject vpObj(cx); if (vp.isObject()) vpObj = &vp.toObject(); // Use onWhatever to set event handlers if (propName.substr(0, 2) == "on") { if (vp.isPrimitive() || vp.isNull() || !JS_ObjectIsFunction(cx, &vp.toObject())) { - JS_ReportError(cx, "on- event-handlers must be functions"); + LOGERROR("on- event-handlers must be functions"); return result.fail(JSMSG_NOT_FUNCTION); } CStr eventName(propName.substr(2)); e->SetScriptHandler(eventName, vpObj); return result.succeed(); } if (e->SettingExists(propName)) return e->m_Settings[propName]->FromJSVal(cx, vp, true) ? result.succeed() : result.fail(JSMSG_TYPE_ERR_BAD_ARGS); - JS_ReportError(cx, "Property '%s' does not exist!", propName.c_str()); + LOGERROR("Property '%s' does not exist!", propName.c_str()); return result.fail(JSMSG_UNDEFINED_PROP); } bool JSI_IGUIObject::deleteProperty(JSContext* cx, JS::HandleObject obj, JS::HandleId id, JS::ObjectOpResult& result) { IGUIObject* e = ScriptInterface::GetPrivate(cx, obj, &JSI_IGUIObject::JSI_class); if (!e) return result.fail(JSMSG_NOT_NONNULL_OBJECT); JSAutoRequest rq(cx); JS::RootedValue idval(cx); if (!JS_IdToValue(cx, id, &idval)) return result.fail(JSMSG_NOT_NONNULL_OBJECT); std::string propName; if (!ScriptInterface::FromJSVal(cx, idval, propName)) return result.fail(JSMSG_UNDEFINED_PROP); // event handlers if (propName.substr(0, 2) == "on") { CStr eventName(propName.substr(2)); e->UnsetScriptHandler(eventName); return result.succeed(); } - JS_ReportError(cx, "Only event handlers can be deleted from GUI objects!"); + LOGERROR("Only event handlers can be deleted from GUI objects!"); return result.fail(JSMSG_UNDEFINED_PROP); } bool JSI_IGUIObject::toString(JSContext* cx, uint argc, JS::Value* vp) { // No JSAutoRequest needed for these calls JS::CallArgs args = JS::CallArgsFromVp(argc, vp); IGUIObject* e = ScriptInterface::GetPrivate(cx, args, &JSI_IGUIObject::JSI_class); if (!e) return false; ScriptInterface::ToJSVal(cx, args.rval(), "[GUIObject: " + e->GetName() + "]"); return true; } bool JSI_IGUIObject::focus(JSContext* cx, uint argc, JS::Value* vp) { // No JSAutoRequest needed for these calls JS::CallArgs args = JS::CallArgsFromVp(argc, vp); IGUIObject* e = ScriptInterface::GetPrivate(cx, args, &JSI_IGUIObject::JSI_class); if (!e) return false; e->GetGUI().SetFocusedObject(e); args.rval().setUndefined(); return true; } bool JSI_IGUIObject::blur(JSContext* cx, uint argc, JS::Value* vp) { // No JSAutoRequest needed for these calls JS::CallArgs args = JS::CallArgsFromVp(argc, vp); IGUIObject* e = ScriptInterface::GetPrivate(cx, args, &JSI_IGUIObject::JSI_class); if (!e) return false; e->GetGUI().SetFocusedObject(nullptr); args.rval().setUndefined(); return true; } bool JSI_IGUIObject::getComputedSize(JSContext* cx, uint argc, JS::Value* vp) { JSAutoRequest rq(cx); JS::CallArgs args = JS::CallArgsFromVp(argc, vp); IGUIObject* e = ScriptInterface::GetPrivate(cx, args, &JSI_IGUIObject::JSI_class); if (!e) return false; e->UpdateCachedSize(); ScriptInterface::ToJSVal(cx, args.rval(), e->m_CachedActualSize); return true; }