1 files changed, 104 insertions, 0 deletions
diff --git a/desktop/js.c b/desktop/js.c
new file mode 100644
index 000000000..540ff82a5
--- /dev/null
+++ b/desktop/js.c
@@ -0,0 +1,104 @@
+#include "mozjs/jsapi.h"
+
+#include "desktop/js.h"
+#include "utils/log.h"
+
+static JSRuntime *rt; /* global runtime */
+
+void js_initialise(void)
+{
+	/* Create a JS runtime. */
+	rt = JS_NewRuntime(8L * 1024L * 1024L);
+	LOG(("New runtime handle %p", rt));
+}
+
+void js_finalise(void)
+{
+	if (rt != NULL) {
+		LOG(("destroying runtime handle %p", rt));
+		JS_DestroyRuntime(rt);
+	}
+	JS_ShutDown();
+}
+
+/* The error reporter callback. */
+static void js_reportError(JSContext *cx, const char *message, JSErrorReport *report)
+{
+	LOG(("%s:%u:%s\n",
+            report->filename ? report->filename : "<no filename>",
+            (unsigned int) report->lineno,
+	     message));
+}
+
+jscontext *js_newcontext(void)
+{
+	JSContext *cx;
+
+	if (rt == NULL) {
+		return NULL;
+	}
+
+	cx = JS_NewContext(rt, 8192);
+	if (cx == NULL) {
+		return NULL;
+	}
+	JS_SetOptions(cx, JSOPTION_VAROBJFIX | JSOPTION_JIT );
+	JS_SetVersion(cx, JSVERSION_LATEST);
+	JS_SetErrorReporter(cx, js_reportError);
+
+	LOG(("New Context %p", cx));
+
+	return (jscontext *)cx;
+}
+
+void js_destroycontext(jscontext *ctx)
+{
+	JSContext *cx = (JSContext *)ctx;
+	if (cx != NULL) {
+		LOG(("Destroying Context %p", cx));
+		JS_DestroyContext(cx);
+	}
+}
+
+
+
+/* The class of the global object. */
+static JSClass global_class = {
+    "global", JSCLASS_GLOBAL_FLAGS,
+    JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
+    JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
+    JSCLASS_NO_OPTIONAL_MEMBERS
+};
+
+
+jsobject *js_newcompartment(jscontext *ctx)
+{
+	JSContext *cx = (JSContext *)ctx;
+	JSObject *global;
+	
+	if (cx == NULL) {
+		return NULL;
+	}
+#ifdef HAVE_JS_NEWCOMPARTMENTANDGLOBALOBJECT
+	global = JS_NewCompartmentAndGlobalObject(cx, &global_class, NULL);
+	if (global == NULL) {
+		return NULL;
+	}
+#else
+	global = JS_NewObject(cx, &global_class, NULL, NULL);
+	if (global == NULL) {
+		return NULL;
+	}
+	JS_SetGlobalObject(cx, global);
+#endif
+
+	/* Populate the global object with the standard globals,
+	   like Object and Array. */
+	if (!JS_InitStandardClasses(cx, global)) {
+		return NULL;
+	}
+
+	LOG(("Creating new global object %p", global));
+
+	return (jsobject *)global;
+}