netsurf/content/handlers/javascript/js.h
Daniel Silverstone 313dc9b099
JS: Remove unused slow script callback
Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>
2020-03-21 18:07:50 +00:00

110 lines
3.0 KiB
C

/*
* Copyright 2012 Vincent Sanders <vince@netsurf-browser.org>
*
* 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 <http://www.gnu.org/licenses/>.
*/
/** \file
* Interface to javascript engine functions.
*/
#ifndef NETSURF_JAVASCRIPT_JS_H_
#define NETSURF_JAVASCRIPT_JS_H_
#include "utils/errors.h"
typedef struct jscontext jscontext;
typedef struct jsobject jsobject;
struct dom_event;
struct dom_document;
struct dom_node;
struct dom_element;
struct dom_string;
/**
* Initialise javascript interpreter
*/
void js_initialise(void);
/**
* finalise javascript interpreter
*/
void js_finalise(void);
/**
* Create a new javascript context.
*
* There is usually one context per browsing context (browser window)
*
* \param timeout elapsed wallclock time (in seconds) before \a callback is called
* \param jsctx Updated to the created JS context
* \return NSERROR_OK on success, appropriate error otherwise.
*/
nserror js_newcontext(int timeout, jscontext **jsctx);
/**
* Destroy a previously created context
*/
void js_destroycontext(jscontext *ctx);
/**
* Create a new javascript compartment
*
* This is called once for a page with javascript script tags on
* it. It constructs a fresh global window object.
*/
jsobject *js_newcompartment(jscontext *ctx, void *win_priv, void *doc_priv);
/**
* execute some javascript in a context
*/
bool js_exec(jscontext *ctx, const uint8_t *txt, size_t txtlen, const char *name);
/**
* fire an event at a dom node
*/
bool js_fire_event(jscontext *ctx, const char *type, struct dom_document *doc, struct dom_node *target);
bool
js_dom_event_add_listener(jscontext *ctx,
struct dom_document *document,
struct dom_node *node,
struct dom_string *event_type_dom,
void *js_funcval);
/*** New Events ***/
/**
* Handle a new element being created.
*
* This is called once an element is inserted into the DOM document handled
* by the context provided. The JS implementation must then scan the element
* for on* attributes and register appropriate listeners for those handlers.
*/
void js_handle_new_element(jscontext *ctx, struct dom_element *node);
/**
* Handle an event propagation finished callback.
*
* This is called once an event finishes propagating, no matter how it
* finishes. The intent here is that the JS context can perform any cleanups
* it may need to perform before the DOM finishes and the event may end up
* freed.
*/
void js_event_cleanup(jscontext *ctx, struct dom_event *evt);
#endif /* NETSURF_JAVASCRIPT_JS_H_ */