2012-06-11 02:17:30 +04:00
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/*
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* Copyright 2012 Vincent Sanders <vince@netsurf-browser.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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2012-06-28 03:17:18 +04:00
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#include "javascript/jsapi.h"
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2012-10-26 15:36:14 +04:00
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#include "javascript/jsapi/binding.h"
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2012-01-02 01:42:38 +04:00
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2012-06-11 02:17:30 +04:00
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#include "content/content.h"
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2012-06-20 03:21:15 +04:00
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#include "javascript/content.h"
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2012-06-11 02:17:30 +04:00
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#include "javascript/js.h"
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2012-01-02 01:42:38 +04:00
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#include "utils/log.h"
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static JSRuntime *rt; /* global runtime */
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void js_initialise(void)
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{
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/* Create a JS runtime. */
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2012-06-16 16:06:47 +04:00
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#if JS_VERSION >= 180
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JS_SetCStringsAreUTF8(); /* we prefer our runtime to be utf-8 */
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#endif
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2012-01-02 01:42:38 +04:00
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rt = JS_NewRuntime(8L * 1024L * 1024L);
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2012-11-06 22:08:39 +04:00
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JSLOG("New runtime handle %p", rt);
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2012-06-20 03:21:15 +04:00
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/* register script content handler */
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javascript_init();
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2012-01-02 01:42:38 +04:00
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}
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void js_finalise(void)
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{
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if (rt != NULL) {
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2012-11-06 22:08:39 +04:00
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JSLOG("destroying runtime handle %p", rt);
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2012-01-02 01:42:38 +04:00
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JS_DestroyRuntime(rt);
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}
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JS_ShutDown();
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}
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/* The error reporter callback. */
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static void js_reportError(JSContext *cx, const char *message, JSErrorReport *report)
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{
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2012-11-06 22:08:39 +04:00
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JSLOG("%s:%u:%s",
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report->filename ? report->filename : "<no filename>",
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(unsigned int) report->lineno,
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message);
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2012-01-02 01:42:38 +04:00
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}
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jscontext *js_newcontext(void)
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{
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JSContext *cx;
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if (rt == NULL) {
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return NULL;
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}
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cx = JS_NewContext(rt, 8192);
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if (cx == NULL) {
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return NULL;
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}
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JS_SetOptions(cx, JSOPTION_VAROBJFIX | JSOPTION_JIT );
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JS_SetVersion(cx, JSVERSION_LATEST);
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JS_SetErrorReporter(cx, js_reportError);
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2012-11-06 22:08:39 +04:00
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/*JS_SetGCZeal(cx, 2); */
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JSLOG("New Context %p", cx);
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2012-01-02 01:42:38 +04:00
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return (jscontext *)cx;
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}
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void js_destroycontext(jscontext *ctx)
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{
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JSContext *cx = (JSContext *)ctx;
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if (cx != NULL) {
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2012-11-06 22:08:39 +04:00
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JSLOG("Destroying Context %p", cx);
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2012-01-02 01:42:38 +04:00
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JS_DestroyContext(cx);
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}
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}
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2012-10-26 15:36:14 +04:00
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/** Create new compartment to run scripts within
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*
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* This performs the following actions
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* 1. constructs a new global object by initialising a window class
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* 2. Instantiate the global a window object
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*/
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2012-06-26 22:55:57 +04:00
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jsobject *js_newcompartment(jscontext *ctx, void *win_priv, void *doc_priv)
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2012-01-02 01:42:38 +04:00
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{
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JSContext *cx = (JSContext *)ctx;
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2012-10-26 15:36:14 +04:00
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JSObject *window_proto;
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JSObject *window;
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2012-07-01 13:10:00 +04:00
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2012-10-26 15:36:14 +04:00
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if (cx == NULL) {
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return NULL;
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}
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2012-01-02 01:42:38 +04:00
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2012-10-26 15:36:14 +04:00
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window_proto = jsapi_InitClass_Window(cx, NULL);
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if (window_proto == NULL) {
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2012-11-06 22:08:39 +04:00
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JSLOG("Unable to initialise window class");
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2012-10-26 15:36:14 +04:00
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return NULL;
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}
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2012-01-02 01:42:38 +04:00
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2012-10-26 15:36:14 +04:00
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window = jsapi_new_Window(cx, window_proto, NULL, win_priv, doc_priv);
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return (jsobject *)window;
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2012-01-02 01:42:38 +04:00
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}
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2012-06-11 02:17:30 +04:00
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2012-06-28 18:38:28 +04:00
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bool js_exec(jscontext *ctx, const char *txt, size_t txtlen)
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2012-06-11 02:17:30 +04:00
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{
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JSContext *cx = (JSContext *)ctx;
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2012-11-08 04:45:30 +04:00
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jsval rval;
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2012-06-11 02:17:30 +04:00
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2012-11-06 22:08:39 +04:00
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/* JSLOG("%p \"%s\"",cx ,txt); */
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2012-06-11 02:17:30 +04:00
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if (ctx == NULL) {
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return false;
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}
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if (txt == NULL) {
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return false;
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}
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if (txtlen == 0) {
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return false;
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}
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if (JS_EvaluateScript(cx,
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JS_GetGlobalObject(cx),
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txt, txtlen,
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2012-11-08 04:45:30 +04:00
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"<head>", 0, &rval) == JS_TRUE) {
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2012-11-06 22:08:39 +04:00
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2012-06-11 02:17:30 +04:00
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return true;
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}
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return false;
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}
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2012-11-28 22:07:36 +04:00
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2012-11-28 22:53:11 +04:00
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dom_exception _dom_event_create(dom_document *doc, dom_event **evt);
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#define dom_event_create(d, e) _dom_event_create((dom_document *)(d), (dom_event **) (e))
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2012-11-28 22:07:36 +04:00
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bool js_fire_event(jscontext *ctx, const char *type, void *target)
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{
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JSContext *cx = (JSContext *)ctx;
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dom_node *node = target;
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JSObject *jsevent;
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jsval rval;
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jsval argv[1];
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JSBool ret = JS_TRUE;
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dom_exception exc;
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dom_event *event;
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dom_string *type_dom;
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if (node == NULL) {
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/* deliver to window */
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if (cx == NULL) {
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return false;
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}
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exc = dom_string_create((unsigned char*)type, strlen(type), &type_dom);
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if (exc != DOM_NO_ERR) {
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return false;
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}
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2012-11-28 22:53:11 +04:00
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exc = dom_event_create(-1, &event);
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2012-11-28 22:07:36 +04:00
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if (exc != DOM_NO_ERR) {
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return false;
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}
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exc = dom_event_init(event, type_dom, false, false);
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dom_string_unref(type_dom);
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if (exc != DOM_NO_ERR) {
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return false;
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}
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jsevent = jsapi_new_Event(cx, NULL, NULL, event);
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if (jsevent == NULL) {
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return false;
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}
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argv[0] = OBJECT_TO_JSVAL(jsevent);
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ret = JS_CallFunctionName(cx,
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JS_GetGlobalObject(cx),
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"dispatchEvent",
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1,
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argv,
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&rval);
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}
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if (ret == JS_TRUE) {
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return true;
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}
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return false;
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}
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