/* * Copyright 2012 Vincent Sanders * * This file is part of NetSurf, http://www.netsurf-browser.org/ * * NetSurf 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; version 2 of the License. * * NetSurf 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 this program. If not, see . */ #include "javascript/jsapi.h" #include "javascript/jsapi/binding.h" #include "content/content.h" #include "javascript/content.h" #include "javascript/js.h" #include "utils/log.h" static JSRuntime *rt; /* global runtime */ void js_initialise(void) { /* Create a JS runtime. */ #if JS_VERSION >= 180 JS_SetCStringsAreUTF8(); /* we prefer our runtime to be utf-8 */ #endif rt = JS_NewRuntime(8L * 1024L * 1024L); JSLOG("New runtime handle %p", rt); /* register script content handler */ javascript_init(); } void js_finalise(void) { if (rt != NULL) { JSLOG("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) { JSLOG("%s:%u:%s", report->filename ? report->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); /*JS_SetGCZeal(cx, 2); */ JSLOG("New Context %p", cx); return (jscontext *)cx; } void js_destroycontext(jscontext *ctx) { JSContext *cx = (JSContext *)ctx; if (cx != NULL) { JSLOG("Destroying Context %p", cx); JS_DestroyContext(cx); } } /** Create new compartment to run scripts within * * This performs the following actions * 1. constructs a new global object by initialising a window class * 2. Instantiate the global a window object */ jsobject *js_newcompartment(jscontext *ctx, void *win_priv, void *doc_priv) { JSContext *cx = (JSContext *)ctx; JSObject *window_proto; JSObject *window; if (cx == NULL) { return NULL; } window_proto = jsapi_InitClass_Window(cx, NULL); if (window_proto == NULL) { JSLOG("Unable to initialise window class"); return NULL; } window = jsapi_new_Window(cx, window_proto, NULL, win_priv, doc_priv); return (jsobject *)window; } bool js_exec(jscontext *ctx, const char *txt, size_t txtlen) { JSContext *cx = (JSContext *)ctx; jsval rval; /* JSLOG("%p \"%s\"",cx ,txt); */ if (ctx == NULL) { return false; } if (txt == NULL) { return false; } if (txtlen == 0) { return false; } if (JS_EvaluateScript(cx, JS_GetGlobalObject(cx), txt, txtlen, "", 0, &rval) == JS_TRUE) { return true; } return false; }