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forked from 0ad/0ad
0ad/source/gui/scripting/JSInterface_IGUIObject.cpp
janwas c0ed950657 had to remove uint and ulong from lib/types.h due to conflict with other library.
this snowballed into a massive search+destroy of the hodgepodge of
mostly equivalent types we had in use (int, uint, unsigned, unsigned
int, i32, u32, ulong, uintN).

it is more efficient to use 64-bit types in 64-bit mode, so the
preferred default is size_t (for anything remotely resembling a size or
index). tile coordinates are ssize_t to allow more efficient conversion
to/from floating point. flags are int because we almost never need more
than 15 distinct bits, bit test/set is not slower and int is fastest to
type. finally, some data that is pretty much directly passed to OpenGL
is now typed accordingly.

after several hours, the code now requires fewer casts and less
guesswork.

other changes:
- unit and player IDs now have an "invalid id" constant in the
respective class to avoid casting and -1
- fix some endian/64-bit bugs in the map (un)packing. added a
convenience function to write/read a size_t.
- ia32: change CPUID interface to allow passing in ecx (required for
cache topology detection, which I need at work). remove some unneeded
functions from asm, replace with intrinsics where possible.

This was SVN commit r5942.
2008-05-11 18:48:32 +00:00

578 lines
14 KiB
C++

#include "precompiled.h"
#include "JSInterface_IGUIObject.h"
#include "JSInterface_GUITypes.h"
#include "gui/IGUIObject.h"
#include "gui/CGUI.h"
#include "gui/CList.h"
#include "ps/CLogger.h"
#include "ps/StringConvert.h"
JSClass JSI_IGUIObject::JSI_class = {
"GUIObject", JSCLASS_HAS_PRIVATE,
JS_PropertyStub, JS_PropertyStub,
JSI_IGUIObject::getProperty, JSI_IGUIObject::setProperty,
JS_EnumerateStub, JS_ResolveStub,
JS_ConvertStub, JS_FinalizeStub,
NULL, NULL, NULL, JSI_IGUIObject::construct
};
JSPropertySpec JSI_IGUIObject::JSI_props[] =
{
{ 0 }
};
JSFunctionSpec JSI_IGUIObject::JSI_methods[] =
{
{ "toString", JSI_IGUIObject::toString, 0, 0, 0 },
{ "getByName", JSI_IGUIObject::getByName, 1, 0, 0 },
{ 0 }
};
JSBool JSI_IGUIObject::getProperty(JSContext* cx, JSObject* obj, jsval id, jsval* vp)
{
CStr propName = JS_GetStringBytes(JS_ValueToString(cx, id));
// Skip some things which are known to be functions rather than properties.
// ("constructor" *must* be here, else it'll try to GetSettingType before
// the private IGUIObject* has been set (and thus crash). The others are
// partly for efficiency, and also to allow correct reporting of attempts to
// access nonexistent properties.)
if (propName == "constructor" ||
propName == "prototype" ||
propName == "toString" ||
propName == "getByName"
)
return JS_TRUE;
IGUIObject* e = (IGUIObject*)JS_GetPrivate(cx, obj);
// Use onWhatever to access event handlers
if (propName.Left(2) == "on")
{
CStr eventName (CStr(propName.substr(2)).LowerCase());
std::map<CStr, JSObject**>::iterator it = e->m_ScriptHandlers.find(eventName);
if (it == e->m_ScriptHandlers.end())
*vp = JSVAL_NULL;
else
*vp = OBJECT_TO_JSVAL(*(it->second));
return JS_TRUE;
}
// Handle the "parent" property specially
if (propName == "parent")
{
IGUIObject* parent = e->GetParent();
if (parent)
{
// If the object isn't parentless, return a new object
JSObject* entity = JS_NewObject(cx, &JSI_IGUIObject::JSI_class, NULL, NULL);
JS_SetPrivate(cx, entity, parent);
*vp = OBJECT_TO_JSVAL(entity);
}
else
{
// Return null if there's no parent
*vp = JSVAL_NULL;
}
return JS_TRUE;
}
// Also handle "name" specially
else if (propName == "name")
{
*vp = STRING_TO_JSVAL(JS_NewStringCopyZ(cx, e->GetName()));
return JS_TRUE;
}
// Handle all other properties
else
{
// Retrieve the setting's type (and make sure it actually exists)
EGUISettingType Type;
if (e->GetSettingType(propName, Type) != PS_OK)
{
JS_ReportError(cx, "Invalid GUIObject property '%s'", propName.c_str());
return JS_FALSE;
}
// (All the cases are in {...} to avoid scoping problems)
switch (Type)
{
case GUIST_bool:
{
bool value;
GUI<bool>::GetSetting(e, propName, value);
*vp = value ? JSVAL_TRUE : JSVAL_FALSE;
break;
}
case GUIST_int:
{
int value;
GUI<int>::GetSetting(e, propName, value);
*vp = INT_TO_JSVAL(value);
break;
}
case GUIST_float:
{
float value;
GUI<float>::GetSetting(e, propName, value);
// Create a garbage-collectable double
*vp = DOUBLE_TO_JSVAL(JS_NewDouble(cx, value) );
break;
}
case GUIST_CColor:
{
CColor colour;
GUI<CColor>::GetSetting(e, propName, colour);
JSObject* obj = JS_NewObject(cx, &JSI_GUIColor::JSI_class, NULL, NULL);
*vp = OBJECT_TO_JSVAL(obj); // root it
// Attempt to minimise ugliness through macrosity
#define P(x) jsval x = DOUBLE_TO_JSVAL(JS_NewDouble(cx, colour.x)); JS_SetProperty(cx, obj, #x, &x)
P(r);
P(g);
P(b);
P(a);
#undef P
break;
}
case GUIST_CClientArea:
{
CClientArea area;
GUI<CClientArea>::GetSetting(e, propName, area);
JSObject* obj = JS_NewObject(cx, &JSI_GUISize::JSI_class, NULL, NULL);
*vp = OBJECT_TO_JSVAL(obj); // root it
try
{
#define P(x, y, z) g_ScriptingHost.SetObjectProperty_Double(obj, #z, area.x.y)
P(pixel, left, left);
P(pixel, top, top);
P(pixel, right, right);
P(pixel, bottom, bottom);
P(percent, left, rleft);
P(percent, top, rtop);
P(percent, right, rright);
P(percent, bottom, rbottom);
#undef P
}
catch (PSERROR_Scripting_ConversionFailed)
{
debug_warn("Error creating size object!");
break;
}
break;
}
case GUIST_CGUIString:
{
CGUIString value;
GUI<CGUIString>::GetSetting(e, propName, value);
JSString* s = StringConvert::wchars_to_jsstring(cx, value.GetRawString().c_str());
*vp = STRING_TO_JSVAL(s);
break;
}
case GUIST_CStr:
{
CStr value;
GUI<CStr>::GetSetting(e, propName, value);
*vp = STRING_TO_JSVAL(JS_NewStringCopyZ(cx, value));
break;
}
case GUIST_CStrW:
{
CStrW value;
GUI<CStrW>::GetSetting(e, propName, value);
*vp = STRING_TO_JSVAL(JS_NewUCStringCopyZ(cx, value.utf16().c_str()));
break;
}
case GUIST_CGUISpriteInstance:
{
CGUISpriteInstance *value;
GUI<CGUISpriteInstance>::GetSettingPointer(e, propName, value);
*vp = STRING_TO_JSVAL(JS_NewStringCopyZ(cx, value->GetName()));
break;
}
case GUIST_EAlign:
{
EAlign value;
GUI<EAlign>::GetSetting(e, propName, value);
CStr word;
switch (value)
{
case EAlign_Left: word = "left"; break;
case EAlign_Right: word = "right"; break;
case EAlign_Center: word = "center"; break;
default: debug_warn("Invalid EAlign!"); word = "error"; break;
}
*vp = STRING_TO_JSVAL(JS_NewStringCopyZ(cx, word));
break;
}
case GUIST_EVAlign:
{
EVAlign value;
GUI<EVAlign>::GetSetting(e, propName, value);
CStr word;
switch (value)
{
case EVAlign_Top: word = "top"; break;
case EVAlign_Bottom: word = "bottom"; break;
case EVAlign_Center: word = "center"; break;
default: debug_warn("Invalid EVAlign!"); word = "error"; break;
}
*vp = STRING_TO_JSVAL(JS_NewStringCopyZ(cx, word));
break;
}
case GUIST_CGUIList:
{
CGUIList value;
GUI<CGUIList>::GetSetting(e, propName, value);
JSObject *obj = JS_NewArrayObject(cx, 0, NULL);
*vp = OBJECT_TO_JSVAL(obj); // root it
for (size_t i = 0; i < value.m_Items.size(); ++i)
{
JSString* s = StringConvert::wchars_to_jsstring(cx, value.m_Items[i].GetRawString().c_str());
jsval val = STRING_TO_JSVAL(s);
JS_SetElement(cx, obj, (jsint)i, &val);
}
break;
}
default:
JS_ReportError(cx, "Setting '%s' uses an unimplemented type", propName.c_str());
debug_warn("This shouldn't happen");
return JS_FALSE;
}
return JS_TRUE;
}
}
JSBool JSI_IGUIObject::setProperty(JSContext* cx, JSObject* obj, jsval id, jsval* vp)
{
IGUIObject* e = (IGUIObject*)JS_GetPrivate(cx, obj);
CStr propName = g_ScriptingHost.ValueToString(id);
if (propName == "name")
{
CStr propValue = JS_GetStringBytes(JS_ValueToString(cx, *vp));
e->SetName(propValue);
return JS_TRUE;
}
// Use onWhatever to set event handlers
if (propName.Left(2) == "on")
{
if (!JSVAL_IS_OBJECT(*vp) || !JS_ValueToFunction(cx, *vp))
{
JS_ReportError(cx, "on- event-handlers must be functions");
return JS_FALSE;
}
CStr eventName (CStr(propName.substr(2)).LowerCase());
e->SetScriptHandler(eventName, JSVAL_TO_OBJECT(*vp));
return JS_TRUE;
}
// Retrieve the setting's type (and make sure it actually exists)
EGUISettingType Type;
if (e->GetSettingType(propName, Type) != PS_OK)
{
JS_ReportError(cx, "Invalid setting '%s'", propName.c_str());
return JS_TRUE;
}
switch (Type)
{
case GUIST_CStr:
{
CStr value (JS_GetStringBytes(JS_ValueToString(cx, *vp)));
GUI<CStr>::SetSetting(e, propName, value);
break;
}
case GUIST_CStrW:
{
utf16string value (JS_GetStringChars(JS_ValueToString(cx, *vp)));
GUI<CStrW>::SetSetting(e, propName, value);
break;
}
case GUIST_CGUISpriteInstance:
{
CStr value (JS_GetStringBytes(JS_ValueToString(cx, *vp)));
GUI<CGUISpriteInstance>::SetSetting(e, propName, value);
break;
}
case GUIST_CGUIString:
{
std::wstring value;
StringConvert::jsstring_to_wstring(JS_ValueToString(cx, *vp), value);
CGUIString str;
str.SetValue(value);
GUI<CGUIString>::SetSetting(e, propName, str);
break;
}
case GUIST_EAlign:
{
CStr value (JS_GetStringBytes(JS_ValueToString(cx, *vp)));
EAlign a;
if (value == "left") a = EAlign_Left;
else if (value == "right") a = EAlign_Right;
else if (value == "center" || value == "centre") a = EAlign_Center;
else
{
JS_ReportError(cx, "Invalid alignment (should be 'left', 'right' or 'center')");
return JS_FALSE;
}
GUI<EAlign>::SetSetting(e, propName, a);
break;
}
case GUIST_EVAlign:
{
CStr value (JS_GetStringBytes(JS_ValueToString(cx, *vp)));
EVAlign a;
if (value == "top") a = EVAlign_Top;
else if (value == "bottom") a = EVAlign_Bottom;
else if (value == "center" || value == "centre") a = EVAlign_Center;
else
{
JS_ReportError(cx, "Invalid alignment (should be 'top', 'bottom' or 'center')");
return JS_FALSE;
}
GUI<EVAlign>::SetSetting(e, propName, a);
break;
}
case GUIST_int:
{
int32 value;
if (JS_ValueToInt32(cx, *vp, &value) == JS_TRUE)
GUI<int>::SetSetting(e, propName, value);
else
{
JS_ReportError(cx, "Cannot convert value to int");
return JS_FALSE;
}
break;
}
case GUIST_float:
{
jsdouble value;
if (JS_ValueToNumber(cx, *vp, &value) == JS_TRUE)
GUI<float>::SetSetting(e, propName, (float)value);
else
{
JS_ReportError(cx, "Cannot convert value to float");
return JS_FALSE;
}
break;
}
case GUIST_bool:
{
JSBool value;
if (JS_ValueToBoolean(cx, *vp, &value) == JS_TRUE)
GUI<bool>::SetSetting(e, propName, value||0); // ||0 to avoid int-to-bool compiler warnings
else
{
JS_ReportError(cx, "Cannot convert value to bool");
return JS_FALSE;
}
break;
}
case GUIST_CClientArea:
{
if (JSVAL_IS_STRING(*vp))
{
if (e->SetSetting(propName, JS_GetStringBytes(JS_ValueToString(cx, *vp))) != PS_OK)
{
JS_ReportError(cx, "Invalid value for setting '%s'", propName.c_str());
return JS_FALSE;
}
}
else if (JSVAL_IS_OBJECT(*vp) && JS_GetClass(cx, JSVAL_TO_OBJECT(*vp)) == &JSI_GUISize::JSI_class)
{
CClientArea area;
GUI<CClientArea>::GetSetting(e, propName, area);
JSObject* obj = JSVAL_TO_OBJECT(*vp);
#define P(x, y, z) area.x.y = (float)g_ScriptingHost.GetObjectProperty_Double(obj, #z)
P(pixel, left, left);
P(pixel, top, top);
P(pixel, right, right);
P(pixel, bottom, bottom);
P(percent, left, rleft);
P(percent, top, rtop);
P(percent, right, rright);
P(percent, bottom, rbottom);
#undef P
GUI<CClientArea>::SetSetting(e, propName, area);
}
else
{
JS_ReportError(cx, "Size only accepts strings or GUISize objects");
return JS_FALSE;
}
break;
}
case GUIST_CColor:
{
if (JSVAL_IS_STRING(*vp))
{
if (e->SetSetting(propName, JS_GetStringBytes(JS_ValueToString(cx, *vp))) != PS_OK)
{
JS_ReportError(cx, "Invalid value for setting '%s'", propName.c_str());
return JS_FALSE;
}
}
else if (JSVAL_IS_OBJECT(*vp) && JS_GetClass(cx, JSVAL_TO_OBJECT(*vp)) == &JSI_GUIColor::JSI_class)
{
CColor colour;
JSObject* obj = JSVAL_TO_OBJECT(*vp);
jsval t; double s;
#define PROP(x) JS_GetProperty(cx, obj, #x, &t); \
JS_ValueToNumber(cx, t, &s); \
colour.x = (float)s
PROP(r); PROP(g); PROP(b); PROP(a);
#undef PROP
GUI<CColor>::SetSetting(e, propName, colour);
}
else
{
JS_ReportError(cx, "Color only accepts strings or GUIColor objects");
return JS_FALSE;
}
break;
}
case GUIST_CGUIList:
{
JSObject* obj = JSVAL_TO_OBJECT(*vp);
jsuint length;
if (JSVAL_IS_OBJECT(*vp) && JS_GetArrayLength(cx, obj, &length) == JS_TRUE)
{
CGUIList list;
for (int i=0; i<(int)length; ++i)
{
jsval element;
if (! JS_GetElement(cx, obj, i, &element))
{
JS_ReportError(cx, "Failed to get list element");
return JS_FALSE;
}
std::wstring value;
JSString* string = JS_ValueToString(cx, element);
StringConvert::jsstring_to_wstring(string, value);
CGUIString str;
str.SetValue(value);
list.m_Items.push_back(str);
}
GUI<CGUIList>::SetSetting(e, propName, list);
}
else
{
JS_ReportError(cx, "List only accepts a GUIList object");
return JS_FALSE;
}
break;
}
// TODO Gee: (2004-09-01) EAlign and EVAlign too.
default:
JS_ReportError(cx, "Setting '%s' uses an unimplemented type", propName.c_str());
break;
}
return JS_TRUE;
}
JSBool JSI_IGUIObject::construct(JSContext* cx, JSObject* obj, uintN argc, jsval* argv, jsval* UNUSED(rval))
{
if (argc == 0)
{
JS_ReportError(cx, "GUIObject has no default constructor");
return JS_FALSE;
}
debug_assert(argc == 1);
// Store the IGUIObject in the JS object's 'private' area
IGUIObject* guiObject = (IGUIObject*)JSVAL_TO_PRIVATE(argv[0]);
JS_SetPrivate(cx, obj, guiObject);
return JS_TRUE;
}
JSBool JSI_IGUIObject::getByName(JSContext* cx, JSObject* UNUSED(obj), uintN argc, jsval* argv, jsval* rval)
{
debug_assert(argc == 1);
CStr objectName = JS_GetStringBytes(JS_ValueToString(cx, argv[0]));
IGUIObject* guiObject = g_GUI.FindObjectByName(objectName);
if (!guiObject)
{
// Not found - return null
*rval = JSVAL_NULL;
return JS_TRUE;
}
*rval = OBJECT_TO_JSVAL(guiObject->GetJSObject());
return JS_TRUE;
}
void JSI_IGUIObject::init()
{
g_ScriptingHost.DefineCustomObjectType(&JSI_class, construct, 1, JSI_props, JSI_methods, NULL, NULL);
}
JSBool JSI_IGUIObject::toString(JSContext* cx, JSObject* obj, uintN UNUSED(argc), jsval* UNUSED(argv), jsval* rval)
{
IGUIObject* e = (IGUIObject*)JS_GetPrivate( cx, obj );
char buffer[256];
snprintf(buffer, 256, "[GUIObject: %s]", e->GetName().c_str());
buffer[255] = 0;
*rval = STRING_TO_JSVAL(JS_NewStringCopyZ(cx, buffer));
return JS_TRUE;
}