forked from 0ad/0ad
125 lines
2.7 KiB
C++
Executable File
125 lines
2.7 KiB
C++
Executable File
#include "precompiled.h"
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#include "ScriptObject.h"
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#include "Entity.h"
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CScriptObject::CScriptObject()
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{
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Function = NULL;
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}
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CScriptObject::~CScriptObject()
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{
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Uproot();
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}
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void CScriptObject::Root()
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{
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if( !Function )
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return;
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FunctionObject = JS_GetFunctionObject( Function );
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JS_AddRoot( g_ScriptingHost.GetContext(), &FunctionObject );
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}
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void CScriptObject::Uproot()
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{
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if( Function )
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JS_RemoveRoot( g_ScriptingHost.GetContext(), &FunctionObject );
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}
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CScriptObject::CScriptObject( JSFunction* _Function )
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{
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Function = NULL;
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SetFunction( _Function );
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}
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CScriptObject::CScriptObject( jsval v )
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{
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Function = NULL;
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SetJSVal( v );
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}
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CScriptObject::CScriptObject( const CScriptObject& copy )
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{
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Function = NULL;
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SetFunction( copy.Function );
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}
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void CScriptObject::SetFunction( JSFunction* _Function )
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{
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Uproot();
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Function = _Function;
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Root();
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}
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void CScriptObject::SetJSVal( jsval v )
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{
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CStrW Source;
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switch( JS_TypeOfValue( g_ScriptingHost.GetContext(), v ) )
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{
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case JSTYPE_STRING:
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Source = g_ScriptingHost.ValueToUCString( v );
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Compile( L"unknown", Source );
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break;
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case JSTYPE_FUNCTION:
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SetFunction( JS_ValueToFunction( g_ScriptingHost.GetContext(), v ) );
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break;
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default:
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Function = NULL;
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}
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}
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JSObject* CScriptObject::GetFunctionObject()
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{
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if( Function )
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return( FunctionObject );
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return( NULL );
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}
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// Executes a script attached to a JS object.
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// Returns false if the script isn't defined, if the script can't be executed,
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// otherwise true. Script return value is in rval.
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bool CScriptObject::Run( JSObject* Context, jsval* rval, uintN argc, jsval* argv )
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{
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if( !Function )
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return( false );
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return( JS_TRUE == JS_CallFunction( g_ScriptingHost.GetContext(), Context, Function, argc, argv, rval ) );
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}
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// This variant casts script return value to a boolean, and passes it back.
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bool CScriptObject::Run( JSObject* Context, uintN argc, jsval* argv )
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{
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jsval Temp;
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if( !Run( Context, &Temp ) )
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return( false );
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return( g_ScriptingHost.ValueToBool( Temp ) );
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}
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// Treat this as an event handler and dispatch an event to it. Return !evt->m_cancelled, as a convenience.
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bool CScriptObject::DispatchEvent( JSObject* Context, CScriptEvent* evt )
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{
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if( Function )
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{
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jsval Temp;
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jsval EventObject = OBJECT_TO_JSVAL( evt->GetScript() );
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JS_CallFunction( g_ScriptingHost.GetContext(), Context, Function, 1, &EventObject, &Temp );
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}
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return( evt->m_Blocked );
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}
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void CScriptObject::Compile( CStrW FileNameTag, CStrW FunctionBody )
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{
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if( Function )
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JS_RemoveRoot( g_ScriptingHost.GetContext(), &Function );
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const char* argnames[] = { "evt" };
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utf16string str16=FunctionBody.utf16();
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Function = JS_CompileUCFunction( g_ScriptingHost.GetContext(), NULL, NULL, 1, argnames, str16.c_str(), str16.size(), (CStr)FileNameTag, 0 );
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Root();
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}
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