mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
400 lines
11 KiB
C++
400 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
#ifndef _NATIVEJSCONTEXT_H_
|
|
#define _NATIVEJSCONTEXT_H_
|
|
|
|
#include "nsDOMError.h"
|
|
|
|
#include "nsIXPConnect.h"
|
|
#include "nsContentUtils.h"
|
|
|
|
#include "nsTArray.h"
|
|
#include "nsAutoPtr.h"
|
|
#include "jsapi.h"
|
|
|
|
class JSObjectHelper;
|
|
class nsIJSRuntimeService;
|
|
|
|
class NativeJSContext {
|
|
public:
|
|
NativeJSContext() {
|
|
error = nsContentUtils::XPConnect()->GetCurrentNativeCallContext(&ncc);
|
|
if (NS_FAILED(error))
|
|
return;
|
|
|
|
if (!ncc) {
|
|
error = NS_ERROR_FAILURE;
|
|
return;
|
|
}
|
|
|
|
ctx = nsnull;
|
|
|
|
error = ncc->GetJSContext(&ctx);
|
|
if (NS_FAILED(error))
|
|
return;
|
|
|
|
JS_BeginRequest(ctx);
|
|
|
|
ncc->GetArgc(&argc);
|
|
ncc->GetArgvPtr(&argv);
|
|
}
|
|
|
|
~NativeJSContext() {
|
|
JS_EndRequest(ctx);
|
|
}
|
|
|
|
PRBool CheckArray (JSObject *obj, jsuint *sz) {
|
|
if (obj &&
|
|
::JS_IsArrayObject(ctx, obj) &&
|
|
::JS_GetArrayLength(ctx, obj, sz))
|
|
return PR_TRUE;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool CheckArray (jsval val, jsuint *sz) {
|
|
if (!JSVAL_IS_NULL(val) &&
|
|
JSVAL_IS_OBJECT(val) &&
|
|
::JS_IsArrayObject(ctx, JSVAL_TO_OBJECT(val)) &&
|
|
::JS_GetArrayLength(ctx, JSVAL_TO_OBJECT(val), sz))
|
|
return PR_TRUE;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool AddGCRoot (void *aPtr, const char *aName);
|
|
void ReleaseGCRoot (void *aPtr);
|
|
|
|
void SetRetVal (PRInt32 val) {
|
|
if (INT_FITS_IN_JSVAL(val))
|
|
SetRetValAsJSVal(INT_TO_JSVAL(val));
|
|
else
|
|
SetRetVal((double) val);
|
|
}
|
|
|
|
void SetRetVal (PRUint32 val) {
|
|
if (INT_FITS_IN_JSVAL(val))
|
|
SetRetValAsJSVal(INT_TO_JSVAL((int) val));
|
|
else
|
|
SetRetVal((double) val);
|
|
}
|
|
|
|
void SetRetVal (double val) {
|
|
jsval *vp;
|
|
ncc->GetRetValPtr(&vp);
|
|
JS_NewDoubleValue(ctx, val, vp);
|
|
}
|
|
|
|
void SetBoolRetVal (PRBool val) {
|
|
if (val)
|
|
SetRetValAsJSVal(JSVAL_TRUE);
|
|
else
|
|
SetRetValAsJSVal(JSVAL_FALSE);
|
|
}
|
|
|
|
void SetRetVal (PRInt32 *vp, PRUint32 len) {
|
|
nsAutoArrayPtr<jsval> jsvector(new jsval[len]);
|
|
|
|
if (!JS_EnterLocalRootScope(ctx))
|
|
return; // XXX ???
|
|
|
|
for (PRUint32 i = 0; i < len; i++) {
|
|
if (INT_FITS_IN_JSVAL(vp[i])) {
|
|
jsvector[i] = INT_TO_JSVAL(vp[i]);
|
|
} else {
|
|
JS_NewDoubleValue(ctx, vp[i], &jsvector[i]);
|
|
}
|
|
}
|
|
|
|
JSObject *jsarr = JS_NewArrayObject(ctx, len, jsvector.get());
|
|
SetRetVal(jsarr);
|
|
|
|
JS_LeaveLocalRootScope(ctx);
|
|
}
|
|
|
|
void SetRetVal (PRUint32 *vp, PRUint32 len) {
|
|
nsAutoArrayPtr<jsval> jsvector(new jsval[len]);
|
|
|
|
if (!JS_EnterLocalRootScope(ctx))
|
|
return; // XXX ???
|
|
|
|
for (PRUint32 i = 0; i < len; i++) {
|
|
JS_NewNumberValue(ctx, vp[i], &jsvector[i]);
|
|
}
|
|
|
|
JSObject *jsarr = JS_NewArrayObject(ctx, len, jsvector.get());
|
|
SetRetVal(jsarr);
|
|
|
|
JS_LeaveLocalRootScope(ctx);
|
|
}
|
|
|
|
void SetRetVal (double *dp, PRUint32 len) {
|
|
nsAutoArrayPtr<jsval> jsvector(new jsval[len]);
|
|
|
|
if (!JS_EnterLocalRootScope(ctx))
|
|
return; // XXX ???
|
|
|
|
for (PRUint32 i = 0; i < len; i++)
|
|
JS_NewDoubleValue(ctx, (jsdouble) dp[i], &jsvector[i]);
|
|
|
|
JSObject *jsarr = JS_NewArrayObject(ctx, len, jsvector.get());
|
|
SetRetVal(jsarr);
|
|
|
|
JS_LeaveLocalRootScope(ctx);
|
|
}
|
|
|
|
void SetRetVal (float *fp, PRUint32 len) {
|
|
nsAutoArrayPtr<jsval> jsvector(new jsval[len]);
|
|
|
|
if (!JS_EnterLocalRootScope(ctx))
|
|
return; // XXX ???
|
|
|
|
for (PRUint32 i = 0; i < len; i++)
|
|
JS_NewDoubleValue(ctx, (jsdouble) fp[i], &jsvector[i]);
|
|
JSObject *jsarr = JS_NewArrayObject(ctx, len, jsvector.get());
|
|
SetRetVal(jsarr);
|
|
|
|
JS_LeaveLocalRootScope(ctx);
|
|
}
|
|
|
|
void SetRetValAsJSVal (jsval val) {
|
|
jsval *vp;
|
|
ncc->GetRetValPtr(&vp);
|
|
*vp = val;
|
|
ncc->SetReturnValueWasSet(PR_TRUE);
|
|
}
|
|
|
|
void SetRetVal (JSObject *obj) {
|
|
SetRetValAsJSVal(OBJECT_TO_JSVAL(obj));
|
|
}
|
|
|
|
void SetRetVal (JSObjectHelper& objh);
|
|
|
|
nsAXPCNativeCallContext *ncc;
|
|
nsresult error;
|
|
JSContext *ctx;
|
|
PRUint32 argc;
|
|
jsval *argv;
|
|
|
|
static nsIJSRuntimeService* sJSRuntimeService;
|
|
static JSRuntime* sJSScriptRuntime;
|
|
|
|
public:
|
|
// static JS helpers
|
|
|
|
static inline PRBool JSValToFloatArray (JSContext *ctx, jsval val,
|
|
jsuint cnt, float *array)
|
|
{
|
|
JSObject *arrayObj;
|
|
jsuint arrayLen;
|
|
jsval jv;
|
|
jsdouble dv;
|
|
|
|
if (!::JS_ValueToObject(ctx, val, &arrayObj) ||
|
|
arrayObj == NULL ||
|
|
!::JS_IsArrayObject(ctx, arrayObj) ||
|
|
!::JS_GetArrayLength(ctx, arrayObj, &arrayLen) ||
|
|
(arrayLen < cnt))
|
|
return PR_FALSE;
|
|
|
|
for (jsuint i = 0; i < cnt; i++) {
|
|
::JS_GetElement(ctx, arrayObj, i, &jv);
|
|
if (!::JS_ValueToNumber(ctx, jv, &dv))
|
|
return PR_FALSE;
|
|
array[i] = (float) dv;
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
static inline PRBool JSValToDoubleArray (JSContext *ctx, jsval val,
|
|
jsuint cnt, double *array)
|
|
{
|
|
JSObject *arrayObj;
|
|
jsuint arrayLen;
|
|
jsval jv;
|
|
jsdouble dv;
|
|
|
|
if (!::JS_ValueToObject(ctx, val, &arrayObj) ||
|
|
arrayObj == NULL ||
|
|
!::JS_IsArrayObject(ctx, arrayObj) ||
|
|
!::JS_GetArrayLength(ctx, arrayObj, &arrayLen) ||
|
|
(arrayLen < cnt))
|
|
return PR_FALSE;
|
|
|
|
for (jsuint i = 0; i < cnt; i++) {
|
|
::JS_GetElement(ctx, arrayObj, i, &jv);
|
|
if (!::JS_ValueToNumber(ctx, jv, &dv))
|
|
return PR_FALSE;
|
|
array[i] = dv;
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
static inline PRBool JSValToJSArrayAndLength (JSContext *ctx, jsval val,
|
|
JSObject **outObj, jsuint *outLen)
|
|
{
|
|
JSObject *obj = nsnull;
|
|
jsuint len;
|
|
if (!::JS_ValueToObject(ctx, val, &obj) ||
|
|
obj == NULL ||
|
|
!::JS_IsArrayObject(ctx, obj) ||
|
|
!::JS_GetArrayLength(ctx, obj, &len))
|
|
{
|
|
return PR_FALSE;
|
|
}
|
|
|
|
*outObj = obj;
|
|
*outLen = len;
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
template<class T>
|
|
static nsresult JSValToSpecificInterface(JSContext *ctx, jsval val, T **out)
|
|
{
|
|
if (JSVAL_IS_NULL(val)) {
|
|
*out = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!JSVAL_IS_OBJECT(val))
|
|
return NS_ERROR_DOM_SYNTAX_ERR;
|
|
|
|
nsCOMPtr<nsISupports> isup;
|
|
nsresult rv = nsContentUtils::XPConnect()->WrapJS(ctx, JSVAL_TO_OBJECT(val),
|
|
NS_GET_IID(nsISupports),
|
|
getter_AddRefs(isup));
|
|
if (NS_FAILED(rv))
|
|
return NS_ERROR_DOM_SYNTAX_ERR;
|
|
|
|
nsCOMPtr<T> obj = do_QueryInterface(isup);
|
|
if (!obj)
|
|
return NS_ERROR_DOM_SYNTAX_ERR;
|
|
|
|
NS_ADDREF(*out = obj.get());
|
|
return NS_OK;
|
|
}
|
|
|
|
static inline JSObject *ArrayToJSArray (JSContext *ctx,
|
|
const PRInt32 *vals,
|
|
const PRUint32 len)
|
|
{
|
|
// XXX handle ints that are too big to fit
|
|
nsAutoArrayPtr<jsval> jsvector(new jsval[len]);
|
|
for (PRUint32 i = 0; i < len; i++)
|
|
jsvector[i] = INT_TO_JSVAL(vals[i]);
|
|
return JS_NewArrayObject(ctx, len, jsvector);
|
|
}
|
|
|
|
static inline JSObject *ArrayToJSArray (JSContext *ctx,
|
|
const PRUint32 *vals,
|
|
const PRUint32 len)
|
|
{
|
|
// XXX handle ints that are too big to fit
|
|
nsAutoArrayPtr<jsval> jsvector(new jsval[len]);
|
|
for (PRUint32 i = 0; i < len; i++)
|
|
jsvector[i] = INT_TO_JSVAL(vals[i]);
|
|
return JS_NewArrayObject(ctx, len, jsvector);
|
|
}
|
|
|
|
};
|
|
|
|
class JSObjectHelper {
|
|
friend class NativeJSContext;
|
|
public:
|
|
JSObjectHelper(NativeJSContext *jsctx)
|
|
: mCtx (jsctx)
|
|
{
|
|
mObject = JS_NewObject(mCtx->ctx, NULL, NULL, NULL);
|
|
if (!mObject)
|
|
return;
|
|
|
|
if (!mCtx->AddGCRoot(&mObject, "JSObjectHelperCanvas3D"))
|
|
mObject = nsnull;
|
|
}
|
|
|
|
~JSObjectHelper() {
|
|
if (mObject && mCtx)
|
|
mCtx->ReleaseGCRoot(&mObject);
|
|
}
|
|
|
|
PRBool DefineProperty(const char *name, PRInt32 val) {
|
|
// XXX handle too big ints
|
|
if (!JS_DefineProperty(mCtx->ctx, mObject, name, INT_TO_JSVAL(val), NULL, NULL, JSPROP_ENUMERATE))
|
|
return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool DefineProperty(const char *name, PRUint32 val) {
|
|
// XXX handle too big ints
|
|
if (!JS_DefineProperty(mCtx->ctx, mObject, name, INT_TO_JSVAL((int)val), NULL, NULL, JSPROP_ENUMERATE))
|
|
return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool DefineProperty(const char *name, double val) {
|
|
jsval dv;
|
|
|
|
if (!JS_NewDoubleValue(mCtx->ctx, val, &dv))
|
|
return PR_FALSE;
|
|
|
|
if (!JS_DefineProperty(mCtx->ctx, mObject, name, dv, NULL, NULL, JSPROP_ENUMERATE))
|
|
return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool DefineProperty(const char *name, JSObject *val) {
|
|
if (!JS_DefineProperty(mCtx->ctx, mObject, name, OBJECT_TO_JSVAL(val), NULL, NULL, JSPROP_ENUMERATE))
|
|
return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// Blah. We can't name this DefineProperty also because PRBool is the same as PRInt32
|
|
PRBool DefineBoolProperty(const char *name, PRBool val) {
|
|
if (!JS_DefineProperty(mCtx->ctx, mObject, name, val ? JS_TRUE : JS_FALSE, NULL, NULL, JSPROP_ENUMERATE))
|
|
return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// We can't use ns*Substring, because we don't have internal linkage
|
|
#if 0
|
|
PRBool DefineProperty(const char *name, const nsCSubstring& val) {
|
|
JSString *jsstr = JS_NewStringCopyN(mCtx->ctx, val.BeginReading(), val.Length());
|
|
if (!jsstr ||
|
|
!JS_DefineProperty(mCtx->ctx, mObject, name, STRING_TO_JSVAL(jsstr), NULL, NULL, JSPROP_ENUMERATE))
|
|
return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool DefineProperty(const char *name, const nsSubstring& val) {
|
|
JSString *jsstr = JS_NewUCStringCopyN(mCtx->ctx, val.BeginReading(), val.Length());
|
|
if (!jsstr ||
|
|
!JS_DefineProperty(mCtx->ctx, mObject, name, STRING_TO_JSVAL(jsstr), NULL, NULL, JSPROP_ENUMERATE))
|
|
return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
#endif
|
|
|
|
PRBool DefineProperty(const char *name, const char *val, PRUint32 len) {
|
|
JSString *jsstr = JS_NewStringCopyN(mCtx->ctx, val, len);
|
|
if (!jsstr ||
|
|
!JS_DefineProperty(mCtx->ctx, mObject, name, STRING_TO_JSVAL(jsstr), NULL, NULL, JSPROP_ENUMERATE))
|
|
return PR_FALSE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
JSObject *Object() {
|
|
return mObject;
|
|
}
|
|
|
|
protected:
|
|
NativeJSContext *mCtx;
|
|
JSObject *mObject;
|
|
};
|
|
|
|
inline void
|
|
NativeJSContext::SetRetVal(JSObjectHelper& objh) {
|
|
SetRetValAsJSVal(OBJECT_TO_JSVAL(objh.mObject));
|
|
}
|
|
|
|
#endif
|