fteqw/plugins/cef/cef.c

//fte defs
#include "../plugin.h"
#include "../engine.h"

//libcef defs
#include "include/cef_version.h"
#include "include/capi/cef_app_capi.h"
#include "include/capi/cef_client_capi.h"
//#include "include/capi/cef_url_capi.h"
#include "assert.h"
#if defined(_DEBUG) && defined(_MSC_VER)
	#include <crtdbg.h>
#endif

//avoid conflicts with cef headers
#define cef_api_hash							pcef_api_hash
#define cef_version_info						pcef_version_info
#define cef_initialize							pcef_initialize
#define cef_do_message_loop_work				pcef_do_message_loop_work
#define cef_shutdown							pcef_shutdown
#define cef_execute_process						pcef_execute_process
#define cef_browser_host_create_browser_sync	pcef_browser_host_create_browser_sync
#define cef_string_utf8_to_utf16				pcef_string_utf8_to_utf16
#define cef_string_utf16_to_utf8				pcef_string_utf16_to_utf8
#define cef_string_utf16_clear					pcef_string_utf16_clear
#define cef_string_utf16_set					pcef_string_utf16_set
#define cef_string_utf8_clear					pcef_string_utf8_clear
#define cef_string_utf8_set						pcef_string_utf8_set
#define cef_string_userfree_utf16_free			pcef_string_userfree_utf16_free
#define cef_register_scheme_handler_factory		pcef_register_scheme_handler_factory
#define cef_get_mime_type						pcef_get_mime_type
#define cef_v8value_create_function				pcef_v8value_create_function
#define cef_v8value_create_string				pcef_v8value_create_string
#define cef_process_message_create				pcef_process_message_create
#define cef_v8context_get_current_context		pcef_v8context_get_current_context
#define	cef_post_task							pcef_post_task
#define cef_request_context_create_context		pcef_request_context_create_context

#define cef_addref(ptr)		(ptr)->base.add_ref(&(ptr)->base)
#define cef_release(ptr)	(((ptr)->base.release)(&(ptr)->base))


static const char*				(*cef_api_hash)(int entry);
static int						(*cef_version_info)(int entry);
static int						(*cef_initialize)(const struct _cef_main_args_t* args, const cef_settings_t* settings, cef_app_t* application, void* windows_sandbox_info);
static void						(*cef_do_message_loop_work)(void);
static void						(*cef_shutdown)(void);
static int						(*cef_execute_process)(const cef_main_args_t* args, cef_app_t* application, void* windows_sandbox_info);
static cef_browser_t*			(*cef_browser_host_create_browser_sync)(const cef_window_info_t* windowInfo, cef_client_t* client, const cef_string_t* url, const cef_browser_settings_t* settings, cef_request_context_t* request_context);
static int						(*cef_string_utf8_to_utf16)(const char* src, size_t src_len, cef_string_utf16_t* output);
static int						(*cef_string_utf16_to_utf8)(const char16* src, size_t src_len, cef_string_utf8_t* output);
static void						(*cef_string_utf16_clear)(cef_string_utf16_t* str);
static int						(*cef_string_utf16_set)(const char16* src, size_t src_len, cef_string_utf16_t* output, int copy);
static void						(*cef_string_utf8_clear)(cef_string_utf8_t* str);
static int						(*cef_string_utf8_set)(const char* src, size_t src_len, cef_string_utf8_t* output, int copy);
static void						(*cef_string_userfree_utf16_free)(cef_string_userfree_utf16_t str);
static int						(*cef_register_scheme_handler_factory)(const cef_string_t* scheme_name, const cef_string_t* domain_name, cef_scheme_handler_factory_t* factory);
static cef_string_userfree_t	(*cef_get_mime_type)(const cef_string_t* extension);
static cef_v8value_t*			(*cef_v8value_create_function)(const cef_string_t* name, cef_v8handler_t* handler);
static cef_v8value_t*			(*cef_v8value_create_string)(const cef_string_t* value);
static cef_process_message_t*	(*cef_process_message_create)(const cef_string_t* name);
static cef_v8context_t*			(*cef_v8context_get_current_context)(void);	//typical C++ programmers omitted the void.
static int						(*cef_post_task)(cef_thread_id_t threadId, cef_task_t* task);
static cef_request_context_t*	(*cef_request_context_create_context)(const cef_request_context_settings_t* settings, cef_request_context_handler_t* handler);

#ifndef CEF_VERSION	//old builds lack this
#define CEF_VERSION "cef"STRINGIFY(CEF_VERSION_MAJOR)"."STRINGIFY(CEF_REVISION)"."STRINGIFY(CHROME_VERSION_BUILD)
#endif
#ifndef CEF_COMMIT_NUMBER
#define CEF_COMMIT_NUMBER CEF_REVISION
#endif

#ifdef _WIN32
//we can't use pSys_LoadLibrary, because plugin builtins do not work unless the engine's plugin system is fully initialised, which doesn't happen in the 'light weight' sub processes, so we'll just roll our own (consistent) version.
dllhandle_t *Sys_LoadLibrary(const char *name, dllfunction_t *funcs)
{
	int i;
	HMODULE lib;

	lib = LoadLibrary(name);
	if (!lib)
	{
		{	//.dll implies that it is a system dll, or something that is otherwise windows-specific already.
			char libname[MAX_OSPATH];
#ifdef _WIN64
			Q_snprintf(libname, sizeof(libname), "%s_64", name);
#elif defined(_WIN32)
			Q_snprintf(libname, sizeof(libname), "%s_32", name);
#else
#error wut? not win32?
#endif
			lib = LoadLibrary(libname);
		}
		if (!lib)
			return NULL;
	}

	if (funcs)
	{
		for (i = 0; funcs[i].name; i++)
		{
			*funcs[i].funcptr = GetProcAddress(lib, funcs[i].name);
			if (!*funcs[i].funcptr)
				break;
		}
		if (funcs[i].name)
		{
			Con_DPrintf("Missing export \"%s\" in \"%s\"\n", funcs[i].name, name);
			FreeModule((dllhandle_t*)lib);
			lib = NULL;
		}
	}

	return (dllhandle_t*)lib;
}
#else
#include <dlfcn.h>
dllhandle_t *Sys_LoadLibrary(const char *name, dllfunction_t *funcs)
{
	int i;
	dllhandle_t *lib;

	lib = NULL;
	if (!lib)
		lib = dlopen (va("%s.so", name), RTLD_LAZY);
	if (!lib && !strstr(name, ".so"))
		lib = dlopen (va("./%s.so", name), RTLD_LAZY);
	if (!lib)
	{
		Con_DPrintf("%s\n", dlerror());
		return NULL;
	}

	if (funcs)
	{
		for (i = 0; funcs[i].name; i++)
		{
			*funcs[i].funcptr = dlsym(lib, funcs[i].name);
			if (!*funcs[i].funcptr)
				break;
		}
		if (funcs[i].name)
		{
			Con_DPrintf("Unable to find symbol \"%s\" in \"%s\"\n", funcs[i].name, name);
//			Sys_CloseLibrary((dllhandle_t*)lib);
			lib = NULL;
		}
	}

	return (dllhandle_t*)lib;
}
#endif



#define Cvar_Register(v) ((v)->handle = pCvar_Register((v)->name, (v)->string, (v)->flags, (v)->group))
#define Cvar_Update(v) ((v)->modificationcount = pCvar_Update((v)->handle, &(v)->modificationcount, (v)->string, &(v)->value))

vmcvar_t	cef_incognito		= {"cef_incognito", "0", "browser settings", 0};
vmcvar_t	cef_allowplugins	= {"cef_allowplugins", "0", "browser settings", 0};
vmcvar_t	cef_allowcvars		= {"cef_allowcvars", "0", "browser settings", 0};
vmcvar_t	cef_devtools		= {"cef_devtools", "0", "browser settings", 0};

static char plugname[MAX_OSPATH];
static char *newconsole;

static void setcefstring(char *str, cef_string_t *r)
{
	cef_string_from_utf8(str, strlen(str), r);
}
static cef_string_t makecefstring(char *str)
{
	cef_string_t r = {NULL};
	cef_string_from_utf8(str, strlen(str), &r);
	return r;
}

static char *Info_JSONify (char *s, char *o, size_t outlen)
{
	outlen--;	//so we don't have to consider nulls

	if (*s == '\\')
		s++;
	while (*s)
	{
		//min overhead
		if (outlen < 6)
			break;
		outlen -= 6;

		*o++ = ',';
		*o++ = '\"';
		for (; *s && *s != '\\'; s++)
		{
			if (*s != '\"' && outlen)
			{
				outlen--;
				*o++ = *s;
			}
		}
		*o++ = '\"';
		*o++ = ':';
		*o++ = '\"';

		if (!*s++)
		{
			//should never happen.
			*o++ = '\"';
			*o = 0;
			return o;
		}

		for (; *s && *s != '\\'; s++)
		{
			if (*s != '\"' && outlen)
			{
				outlen--;
				*o++ = *s;
			}
		}

		*o++ = '\"';

		if (*s)
			s++;
	}
	*o = 0;
	return o;
}

#ifdef _MSC_VER
	#define atomic_fetch_add(p,v) (InterlockedIncrement(p)-1)
	#define atomic_fetch_sub(p,v) (InterlockedDecrement(p)+1)
	#define atomic_uint32_t LONG
#else
	#define atomic_fetch_add __sync_fetch_and_add
	#define atomic_fetch_sub __sync_fetch_and_sub
	#define atomic_uint32_t unsigned int
#endif

typedef struct
{
	atomic_uint32_t refcount;	//this needs to be atomic to avoid multiple threads adding at the same time
	//cef interface objects
	cef_client_t client;
	cef_render_handler_t render_handler;
	cef_display_handler_t display_handler;
	cef_request_handler_t request_handler;
	cef_life_span_handler_t life_span_handler;
	cef_browser_t *thebrowser;

	void *videodata;
	int videowidth;
	int videoheight;
	qboolean updated;
	int desiredwidth;
	int desiredheight;
	char *consolename;	//for internal plugin use.
	cef_string_utf8_t currenturl;
	cef_string_utf8_t currenttitle;
	cef_string_utf8_t currentstatus;

	cef_mouse_event_t mousepos;
	unsigned char keystate[K_MAX];
} browser_t;
unsigned int numbrowsers;

static void browser_addref(browser_t *br)
{
	atomic_fetch_add(&br->refcount, 1);
}
static int browser_release(browser_t *br)
{
	if (atomic_fetch_sub(&br->refcount, 1) == 1)
	{
		if (br->consolename)
			free(br->consolename);
		if (br->videodata)
			free(br->videodata);
		cef_string_utf8_clear(&br->currenturl);
		cef_string_utf8_clear(&br->currenttitle);
		cef_string_utf8_clear(&br->currentstatus);

		numbrowsers--;

		free(br);
		return true;
	}
	return false;
}

#define browser_subs(sub) \
	static void CEF_CALLBACK browser_##sub##_addref(cef_base_t* self) {browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, sub.base)); browser_addref(br);};	\
	static int CEF_CALLBACK browser_##sub##_release(cef_base_t* self) {browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, sub.base)); return browser_release(br);};	\
	static int CEF_CALLBACK browser_##sub##_hasoneref(cef_base_t* self) {browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, sub.base)); return br->refcount == 1;};
browser_subs(client);
browser_subs(render_handler);
browser_subs(display_handler);
browser_subs(request_handler);
browser_subs(life_span_handler);
#undef browser_subs

//client methods
static cef_render_handler_t *CEF_CALLBACK browser_get_render_handler(cef_client_t *self)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, client));
	cef_addref(&br->render_handler);
	return &br->render_handler;
}
static cef_life_span_handler_t *CEF_CALLBACK browser_get_life_span_handler(cef_client_t *self)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, client));
	cef_addref(&br->life_span_handler);
	return &br->life_span_handler;
}
static cef_display_handler_t *CEF_CALLBACK browser_get_display_handler(cef_client_t *self)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, client));
	cef_addref(&br->display_handler);
	return &br->display_handler;
}
static cef_request_handler_t *CEF_CALLBACK browser_get_request_handler(cef_client_t *self)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, client));
	cef_addref(&br->request_handler);
	return &br->request_handler;
}

static qboolean browser_handle_query(const char *req, char *buffer, size_t buffersize)
{
	if (!strncmp(req, "getcvar_", 8))
	{
		Cvar_Update(&cef_allowcvars);
		if (cef_allowcvars.value && pCvar_GetString(req+8, buffer, buffersize))
			return true;
	}
	else if (!strncmp(req, "setcvar_", 8))
	{
		const char *eq = strchr(req+8, '=');
		if (eq)
			*(char*)eq++ = 0;
		else
			eq = req+strlen(req);

		Cvar_Update(&cef_allowcvars);
		if (cef_allowcvars.value)
		{
			pCvar_SetString(req+8, eq);
			*buffer = 0;
			return true;
		}
	}
	else if (!strcmp(req, "getstats"))
	{	//1 [, one sign, 10 chars, one ], one comma
		//FIXME: should be more than just a one-off.
		unsigned int stats[256], i, m;
		char *e = buffer;
		m = pCL_GetStats(0, stats, countof(stats));
		if (!m)
		{
			m = 0;
			stats[m++] = 0;
		}

		*e++ = '[';
		for (i = 0; i < m; i++)
		{
			if (i)
				*e++ = ',';
			
			sprintf(e, "%i", (int)stats[i]);
			e += strlen(e);
		}
		*e++ = ']';
		*e = 0;
		assert(e <= buffer + buffersize);
		return true;
	}
	else if (!strcmp(req, "getseats"))
	{
		int i;
		char *e = buffer;
		int players[MAX_SPLITS];
		int tracks[MAX_SPLITS];
		int seats = pGetLocalPlayerNumbers(0, MAX_SPLITS, players, tracks);
		*e++ = '[';
		for (i = 0; i < seats; i++)
		{
			if (i)
				*e++ = ',';
			sprintf(e, "{\"player\":%i,\"track\":%i}", players[i], tracks[i]); e += strlen(e);
		}
		*e++ = ']';
		*e = 0;
		assert(e <= buffer + buffersize);
		return true;
	}
	else if (!strcmp(req, "getserverinfo"))
	{
		char serverinfo[4096];
		char *e = buffer;
		pGetServerInfo(serverinfo, sizeof(serverinfo));
		e = Info_JSONify(serverinfo, e, buffer + buffersize - e-1);
		if (e == buffer) e++;
		*buffer = '{';
		*e++ = '}';
		*e = 0;
		assert(e <= buffer + buffersize);
		return true;
	}
	else if (!strcmp(req, "getplayers"))
	{
		unsigned int i;
		char *e = buffer;
		plugclientinfo_t info;

		*e++ = '[';
		for (i = 0; ; i++)
		{
			if (!pGetPlayerInfo(i, &info))
				break;

			if (buffer + buffersize - e-1 < 100)
				break;

			if (i)
				*e++ = ',';
			*e++ = '{';
			//splurge the specific info
			sprintf(e, "\"frags\":%i,\"ping\":%i,\"pl\":%i,\"start\":%i,\"userid\":%i", info.frags, info.ping, info.pl, info.starttime, info.userid);
			e += strlen(e);
			//splurge the generic info (colours, name, team)
			e = Info_JSONify(info.userinfo, e, buffer + buffersize - e-1);
			*e++ = '}';
		}
		*e++ = ']';
		*e = 0;
		assert(e <= buffer + buffersize);
		return true;
	}

	return false;
}

static int CEF_CALLBACK browser_on_process_message_received(cef_client_t* self, cef_browser_t* browser, cef_process_id_t source_process, cef_process_message_t* message)
{
	int handled = false;
//	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, request_handler));
	cef_string_userfree_t msgnameunusable = message->get_name(message);
	cef_string_utf8_t name = {NULL};
	cef_string_to_utf8(msgnameunusable->str, msgnameunusable->length, &name);
	if (!strcmp(name.str, "fte_query"))
	{
		char buffer[8192];
		int id1, id2;
		cef_process_message_t *reply;
		cef_string_utf8_t queryname = {NULL};
		cef_string_t str = {NULL};
		cef_list_value_t *args = message->get_argument_list(message);
		cef_string_userfree_t cmdunusable = args->get_string(args, 0);
		cef_string_to_utf8(cmdunusable->str, cmdunusable->length, &queryname);

		id1 = args->get_int(args, 2);
		id2 = args->get_int(args, 3);
		cef_release(args);

		reply = cef_process_message_create(msgnameunusable);
		args = reply->get_argument_list(reply);
		args->set_string(args, 0, cmdunusable);
		args->set_int(args, 2, id1);
		args->set_int(args, 3, id2);

		if (browser_handle_query(queryname.str, buffer, sizeof(buffer)))
		{
			str = makecefstring(buffer);
			args->set_string(args, 1, &str);
		}
		else
			args->set_null(args, 1);
		cef_release(args);
		cef_string_utf8_clear(&queryname);
		cef_string_clear(&str);
		cef_string_userfree_free(cmdunusable);
		browser->send_process_message(browser, source_process, reply);
		handled = true;
	}
	cef_release(message);
	cef_release(browser);
	cef_string_utf8_clear(&name);
	cef_string_userfree_free(msgnameunusable);
//	if (messagerouter->OnProcessMessageReceived(browser, source_process, message))
//		return true;
	return handled;
}

//render_handler methods
static int CEF_CALLBACK browser_get_view_rect(cef_render_handler_t *self, cef_browser_t *browser, cef_rect_t *rect)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, render_handler));

	rect->x = 0;
	rect->y = 0;
	rect->width = br->desiredwidth;
	rect->height = br->desiredheight;
	cef_release(browser);
	return true;
}
static void CEF_CALLBACK browser_on_paint(cef_render_handler_t *self, cef_browser_t *browser, cef_paint_element_type_t type, size_t dirtyRectsCount, cef_rect_t const* dirtyRects, const void* buffer, int width, int height)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, render_handler));

	cef_release(browser);

	//popups are gonna be so awkward...
	if (type != PET_VIEW)
		return;

	if (br->videowidth != width || br->videoheight != height)
	{
		if (br->videodata)
			free(br->videodata);
		br->videowidth = width;
		br->videoheight = height;
		br->videodata = malloc(width * height * 4);
		memcpy(br->videodata, buffer, width * height * 4);
	}
	else
	{
		while (dirtyRectsCount --> 0)
		{
			if (width == dirtyRects->width && height == dirtyRects->height)
				memcpy(br->videodata, buffer, width * height * 4);
			else
			{
				int y;
				const unsigned int *src;
				unsigned int *dst;
				src = buffer;
				src += width * dirtyRects->y + dirtyRects->x;
				dst = br->videodata;
				dst += width * dirtyRects->y + dirtyRects->x;

				for (y = 0; y < dirtyRects->height; y++)
				{
					memcpy(dst, src, dirtyRects->width*4);
					src += width;
					dst += width;
				}
			}
			dirtyRects++;
		}
	}
	br->updated = true;
}

static void CEF_CALLBACK browser_on_before_close(cef_life_span_handler_t* self, cef_browser_t* browser)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, life_span_handler));
	if (br->thebrowser)
	{	//we may have already released our reference to this, if something else was blocking for some reason.
		cef_release(br->thebrowser);
		br->thebrowser = NULL;
	}
	cef_release(browser);
}

//display_handler methods
//redirect console.log messages to quake's console, but only display them if we've got developer set.
static int CEF_CALLBACK browser_on_console_message(cef_display_handler_t* self, cef_browser_t* browser, const cef_string_t* message, const cef_string_t* source, int line)
{
	cef_string_utf8_t u8_source = {NULL};
	cef_string_utf8_t u8_message = {NULL};
	if (source)
		cef_string_to_utf8(source->str, source->length, &u8_source);
	if (message)
		cef_string_to_utf8(message->str, message->length, &u8_message);

	Con_DPrintf("%s:%i: %s\n", u8_source.str, line, u8_message.str);

	cef_string_utf8_clear(&u8_source);
	cef_string_utf8_clear(&u8_message);
	cef_release(browser);
	return true;
}
static void CEF_CALLBACK browser_on_title_change(cef_display_handler_t* self, cef_browser_t* browser, const cef_string_t* title)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, display_handler));
	if (title)
		cef_string_to_utf8(title->str, title->length, &br->currenttitle);
	else
		cef_string_utf8_copy(br->currenturl.str, br->currenturl.length, &br->currenttitle);

	if (br->consolename)
		pCon_SetConsoleString(br->consolename, "title", br->currenttitle.str?br->currenttitle.str:"");

	cef_release(browser);
}
static void CEF_CALLBACK browser_on_address_change(cef_display_handler_t* self, cef_browser_t* browser, cef_frame_t* frame, const cef_string_t* url)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, display_handler));

	cef_string_to_utf8(url->str, url->length, &br->currenturl);

	//FIXME: should probably make sure its the root frame
//	Con_Printf("new url: %s\n", url.ToString().c_str());
	cef_release(browser);
	cef_release(frame);
}
static int CEF_CALLBACK browser_on_tooltip(cef_display_handler_t* self, cef_browser_t* browser, cef_string_t* text)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, display_handler));
	if (br->consolename)
	{
		cef_string_utf8_t u8_text = {NULL};
		cef_string_to_utf8(text->str, text->length, &u8_text);
		pCon_SetConsoleString(br->consolename, "tooltip", u8_text.str?u8_text.str:"");
		cef_string_utf8_clear(&u8_text);
	}
	cef_release(browser);
	return true;	//cef won't draw tooltips when running like this
}
static void CEF_CALLBACK browser_on_status_message(cef_display_handler_t* self, cef_browser_t* browser, const cef_string_t* value)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, display_handler));
	if (br->consolename)
	{
		cef_string_utf8_t u8_value = {NULL};
		if (value)
			cef_string_to_utf8(value->str, value->length, &u8_value);
		pCon_SetConsoleString(br->consolename, "footer", u8_value.str?u8_value.str:"");
		cef_string_utf8_clear(&u8_value);
	}

	cef_release(browser);
}

//request_handler methods
static int CEF_CALLBACK browser_on_before_browse(cef_request_handler_t* self, cef_browser_t* browser, cef_frame_t* frame, cef_request_t* request, int is_redirect)
{
//	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, request_handler));

	cef_release(browser);
	cef_release(frame);
	cef_release(request);

	return false;
}
static void CEF_CALLBACK browser_on_render_process_terminated(cef_request_handler_t* self, cef_browser_t* browser, cef_termination_status_t status)
{
	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, request_handler));
	if (br->videodata)
		free(br->videodata);
	br->videowidth = 1;
	br->videoheight = 1;
	br->videodata = malloc(br->videowidth * br->videoheight * 4);
	memset(br->videodata, 0, br->videowidth * br->videoheight * 4);
	br->updated = true;

	cef_release(browser);
}


static browser_t *browser_create(void)
{
	browser_t *nb = malloc(sizeof(*nb));
	memset(nb, 0, sizeof(*nb));
	nb->refcount = 1;

#define browser_subs(sub) \
	nb->sub.base.add_ref = browser_##sub##_addref;		\
    nb->sub.base.release = browser_##sub##_release;	\
    nb->sub.base.has_one_ref = browser_##sub##_hasoneref;	\
	nb->sub.base.size = sizeof(nb->sub);
browser_subs(client);
browser_subs(render_handler);
browser_subs(display_handler);
browser_subs(request_handler);
browser_subs(life_span_handler);
#undef browser_subs

	nb->client.get_life_span_handler = browser_get_life_span_handler;
	nb->client.get_render_handler = browser_get_render_handler;
	nb->client.get_display_handler = browser_get_display_handler;
	nb->client.get_request_handler = browser_get_request_handler;
	nb->client.on_process_message_received = browser_on_process_message_received;
	nb->render_handler.get_view_rect = browser_get_view_rect;
	nb->render_handler.on_paint = browser_on_paint;
	nb->display_handler.on_console_message = browser_on_console_message;
	nb->display_handler.on_title_change = browser_on_title_change;
	nb->display_handler.on_address_change = browser_on_address_change;
	nb->display_handler.on_tooltip = browser_on_tooltip;
	nb->display_handler.on_status_message = browser_on_status_message;
	nb->request_handler.on_before_browse = browser_on_before_browse;
	nb->request_handler.on_render_process_terminated = browser_on_render_process_terminated;
	nb->life_span_handler.on_before_close = browser_on_before_close;

	nb->desiredwidth = 640;
	nb->desiredheight = 480;

	if (newconsole)
		nb->consolename = strdup(newconsole);
	else
		nb->consolename = NULL;

	//make it white until there's actually something to draw
	nb->videowidth = 1;
	nb->videoheight = 1;
	nb->videodata = malloc(nb->videowidth * nb->videoheight * 4);
	*(int*)nb->videodata = 0x00ffffff;
	memset(nb->videodata, 0xff, nb->videowidth * nb->videoheight * 4);
	nb->updated = true;

	numbrowsers++;
	return nb;
}

//request contexts are per-session things. eg, incognito tabs would have their own private instance
static cef_request_context_t *request_context;
static cef_request_context_handler_t request_context_handler;
//request_context_handler methods
static int CEF_CALLBACK request_context_handler_on_before_plugin_load(cef_request_context_handler_t* self, const cef_string_t* mime_type, const cef_string_t* plugin_url, const cef_string_t* top_origin_url, cef_web_plugin_info_t* plugin_info, cef_plugin_policy_t* plugin_policy)
{
//	Con_DPrintf("%s (%s), \"%s\" \"%s\" \"%s\" \"%s\"\n", policy_url.ToString().c_str(), url.ToString().c_str(), 
//		info->GetName().ToString().c_str(), info->GetPath().ToString().c_str(), info->GetVersion().ToString().c_str(), info->GetDescription().ToString().c_str());

	*plugin_policy = PLUGIN_POLICY_BLOCK;	//block by default (user can manually override supposedly). most plugins are unlikely to cope well with our offscreen rendering stuff, and flash sucks.

	cef_release(plugin_info);

	Cvar_Update(&cef_allowplugins);
	if (!cef_allowplugins.value)
	{
		*plugin_policy = PLUGIN_POLICY_DISABLE;
//		Con_Printf("Blocking plugin: %s (%s)\n", info->GetName().ToString().c_str(), url.ToString().c_str());
	}
	else
		return false;	//false to use the 'recommended' policy
	return true;
}

//there's only one of these, so I'm not going to bother making separate objects for all of the interfaces, nor ref counting
static cef_app_t app;
static cef_browser_process_handler_t browser_process_handler;
static cef_render_process_handler_t render_process_handler;
static cef_v8handler_t v8handler_query;	//window.fte_query
static cef_scheme_handler_factory_t scheme_handler_factory;

static cef_browser_process_handler_t* CEF_CALLBACK app_get_browser_process_handler(cef_app_t* self)
{
	//cef_addref(&browser_process_handler);
	return &browser_process_handler;
}
static cef_render_process_handler_t* CEF_CALLBACK app_get_render_process_handler(cef_app_t* self)
{
	//cef_addref(&render_process_handler);
	return &render_process_handler;
}
static void CEF_CALLBACK app_on_register_custom_schemes(struct _cef_app_t* self, cef_scheme_registrar_t* registrar)
{
	cef_string_t fte = makecefstring("fte");
	registrar->add_custom_scheme(registrar, &fte, false, true, true);
	cef_string_clear(&fte);
	cef_release(registrar);
}

static void CEF_CALLBACK browser_process_handler_on_context_initialized(cef_browser_process_handler_t* self)
{
	cef_string_t fte = makecefstring("fte");
	cef_register_scheme_handler_factory(&fte, NULL, &scheme_handler_factory);
	cef_string_clear(&fte);
}
static void CEF_CALLBACK browser_process_handler_on_before_child_process_launch(cef_browser_process_handler_t* self, cef_command_line_t* command_line)
{
	char arg[2048];
	cef_string_t cefisannoying = {NULL};
	Q_snprintf(arg, sizeof(arg), "--plugwrapper %s CefSubprocessInit", plugname);

	cef_string_from_utf8(arg, strlen(arg), &cefisannoying);
	command_line->append_argument(command_line, &cefisannoying);
	cef_string_clear(&cefisannoying);

//	MessageBoxW(NULL, command_line->GetCommandLineString().c_str(), L"CEF", 0); 

	cef_release(command_line);
}

static void CEF_CALLBACK render_process_handler_on_context_created(cef_render_process_handler_t* self, cef_browser_t* browser, cef_frame_t* frame, cef_v8context_t* context)
{
	cef_string_t key = makecefstring("fte_query");
	cef_v8value_t *jswindow = context->get_global(context);

	jswindow->set_value_bykey(jswindow, &key, cef_v8value_create_function(&key, &v8handler_query), V8_PROPERTY_ATTRIBUTE_READONLY | V8_PROPERTY_ATTRIBUTE_DONTENUM | V8_PROPERTY_ATTRIBUTE_DONTDELETE);
	cef_string_clear(&key);

	cef_release(browser);
	cef_release(frame);
	cef_release(context);
}

//only use these in the 'renderer' thread / javascript thread.
typedef struct activequery_s
{
	cef_v8value_t *callbackfunc;	//this is the js function to call when the result is available.
	cef_v8context_t *context;
	cef_frame_t *frame;
	int64 queryid;
	struct activequery_s *next;
} activequery_t;
static activequery_t *queries;
static int64 next_queryid;

typedef struct
{
	cef_task_t task;
	cef_string_userfree_t request;
	cef_string_userfree_t result;
	int64 queryid;
	atomic_uint32_t refcount;
} queryresponse_t;
static void CEF_CALLBACK queryresponse_addref(cef_base_t* self)
{
	queryresponse_t *qr = (queryresponse_t*)((char*)self - offsetof(queryresponse_t, task.base)); 
	atomic_fetch_add(&qr->refcount, 1);
}
static int CEF_CALLBACK queryresponse_release(cef_base_t* self)
{
	queryresponse_t *qr = (queryresponse_t*)((char*)self - offsetof(queryresponse_t, task.base)); 
	if (atomic_fetch_sub(&qr->refcount, 1) == 1)
	{
		if (qr->request)
			cef_string_userfree_free(qr->request);
		if (qr->result)
			cef_string_userfree_free(qr->result);
		free(qr);
		return true;
	}
	return false;
}
static void CEF_CALLBACK queryresponse_execute(struct _cef_task_t* self)
{	//lethal injection.
	queryresponse_t *qr = (queryresponse_t*)((char*)self - offsetof(queryresponse_t, task.base)); 
	activequery_t **link, *q;
	for (link = &queries; (q=*link); link = &(*link)->next)
	{
		if (q->queryid == qr->queryid)
		{
			if (q->callbackfunc)
			{
				cef_v8value_t *args[2] = {cef_v8value_create_string(qr->request), cef_v8value_create_string(qr->result)};
				cef_v8value_t *r;
				cef_addref(q->context);
				r = q->callbackfunc->execute_function_with_context(q->callbackfunc, q->context, NULL, 2, args);
				cef_release(r);
			}

			//and clear up the request context too.
			*link = q->next;
			if (q->callbackfunc)
				cef_release(q->callbackfunc);
			cef_release(q->frame);
			cef_release(q->context);
			free(q);
			return;
		}
	}
}

static void CEF_CALLBACK render_process_handler_on_context_released(cef_render_process_handler_t* self, cef_browser_t* browser, cef_frame_t* frame, cef_v8context_t* context)
{
	activequery_t **link, *q;
	for (link = &queries; (q=*link); )
	{
		if (q->context == context)// && q->frame == frame)
		{
			*link = q->next;
			if (q->callbackfunc)
				cef_release(q->callbackfunc);
			cef_release(q->frame);
			cef_release(q->context);
			free(q);
			continue;
		}
		link = &(*link)->next;
	}
	cef_release(browser);
	cef_release(frame);
	cef_release(context);
}


/*javascript methods for the guest code to call*/
static cef_v8value_t *makev8string(char *str)
{
	cef_v8value_t *r;
	cef_string_t cs = makecefstring(str);
	r = cef_v8value_create_string(&cs);
	cef_string_clear(&cs);
	return r;
}
static int CEF_CALLBACK fsfunc_execute(cef_v8handler_t* self, const cef_string_t* name, cef_v8value_t* object, size_t argumentsCount, cef_v8value_t* const* arguments, cef_v8value_t** retval, cef_string_t* exception)
{
	cef_process_message_t *msg;
	cef_list_value_t *args;

	cef_v8context_t *v8ctx = cef_v8context_get_current_context();
	cef_browser_t *browser = v8ctx->get_browser(v8ctx);
	cef_frame_t *frame = v8ctx->get_frame(v8ctx);
//	int64 frame_id = frame->get_identifier(frame);
	
//	cef_string_t key = {L"omgwtfitkindaworks"};
//	key.length = wcslen(key.str);

//	*exception = makecefstring("SOME KIND OF EXCEPTION!");
	*retval = makev8string("OH LOOK! A STRING!");

	if (argumentsCount)
	{
		cef_string_userfree_t setting = arguments[0]->get_string_value(arguments[0]);

		activequery_t *q = malloc(sizeof(*q));
		memset(q, 0, sizeof(*q));
		q->context = v8ctx;	//hold on to these
		q->frame = frame;
		q->queryid = ++next_queryid;
		q->next = queries;
		q->callbackfunc = arguments[1];
		queries = q;

		cef_addref(q->callbackfunc);

		
		msg = cef_process_message_create(name);
		args = msg->get_argument_list(msg);

		args->set_string(args, 0, setting);
		args->set_null(args, 1);
		args->set_int(args, 2, q->queryid & 0xffffffff);
		args->set_int(args, 3, (q->queryid>>32) & 0xffffffff);
		cef_release(args);

		browser->send_process_message(browser, PID_BROWSER, msg);

		cef_string_userfree_free(setting);
	}
	else
	{
		cef_release(frame);
		cef_release(v8ctx);
	}
	cef_release(browser);


	return 1;
} 

static int CEF_CALLBACK render_process_handler_on_process_message_received(cef_render_process_handler_t* self,cef_browser_t* browser, cef_process_id_t source_process,cef_process_message_t* message)
{
	int handled = false;
//	browser_t *br = (browser_t*)((char*)self - offsetof(browser_t, request_handler));
	cef_string_userfree_t msgnameunusable = message->get_name(message);
	cef_string_utf8_t name = {NULL};
	cef_string_to_utf8(msgnameunusable->str, msgnameunusable->length, &name);
	if (!strcmp(name.str, "fte_query"))
	{
		cef_list_value_t *args = message->get_argument_list(message);
		queryresponse_t *task = malloc(sizeof(*task));
		memset(task, 0, sizeof(*task));
		task->refcount = 1;
		task->task.base.size = sizeof(task->task);
		task->task.base.add_ref = queryresponse_addref;
		task->task.base.release = queryresponse_release;
		task->task.execute = queryresponse_execute;
		task->request = args->get_string(args, 0);
		task->result = args->get_string(args, 1);
		task->queryid = args->get_int(args, 2) | ((int64)args->get_int(args, 3)<<32u);
		cef_release(args);
		cef_post_task(TID_RENDERER, &task->task);

		handled = true;
	}
	cef_string_utf8_clear(&name);
	cef_string_userfree_free(msgnameunusable);

	cef_release(browser);
	cef_release(message);
	return handled;
}

/* fte://file/path scheme handler */
typedef struct
{
	cef_resource_handler_t rh;
	atomic_uint32_t refcount;
	vfsfile_t *fh;
	char *data;
	size_t offset;
	size_t datasize;
	unsigned int resultcode;
	cef_string_t mimetype;
} fteresource_t;
static void CEF_CALLBACK resource_handler_addref(cef_base_t* self)
{
	fteresource_t *rh = (fteresource_t*)((char*)self - offsetof(fteresource_t, rh.base)); 
	atomic_fetch_add(&rh->refcount, 1);
}
static int CEF_CALLBACK resource_handler_release(cef_base_t* self)
{
	fteresource_t *rh = (fteresource_t*)((char*)self - offsetof(fteresource_t, rh.base)); 
	if (atomic_fetch_sub(&rh->refcount, 1) == 1)
	{
		if (rh->fh)
			VFS_CLOSE(rh->fh);
		if (rh->data)
			free(rh->data);
		cef_string_clear(&rh->mimetype);
		free(rh);
		return true;
	}
	return false;
}

static int CEF_CALLBACK resource_handler_process_request(cef_resource_handler_t* self, cef_request_t* request, cef_callback_t* callback)
{
	fteresource_t *rh = (fteresource_t*)((char*)self - offsetof(fteresource_t, rh));
	cef_string_userfree_t url = request->get_url(request);
	cef_string_utf8_t u8_url = {NULL};
	cef_string_t ext = {NULL};
	cef_string_to_utf8(url->str, url->length, &u8_url);
	rh->resultcode = 404;

//	cef_string_userfree_t method = request->get_method(request);
//	_cef_post_data_t postdata = request->get_post_data(request);

	//hack at the url to hide the
	{
		char *q = strchr(u8_url.str, '?');
		char *e;
		if (q)
			*q = 0;
		for(e = q?q:u8_url.str+strlen(u8_url.str); e > u8_url.str; )
		{
			e--;
			if (*e == '/')
				break;		//no extension
			if (*e == '.')
			{
				e++;
				cef_string_from_utf8(e, strlen(e), &ext);
				break;
			}
		}
	}

	//sandboxed to the same dir that qc can fopen/fwrite.
	//(also blocks any fancy http:// parsing that an engine might do)
	if (!strncmp(u8_url.str, "fte://data/", 11))
	{
		pVFS_Open(u8_url.str+6, &rh->fh, "rb");
		if (rh->fh)
		{
			cef_string_userfree_t mt = cef_get_mime_type(&ext);
			cef_string_copy(mt->str, mt->length, &rh->mimetype);
			cef_string_userfree_free(mt);
			rh->resultcode = 200;
		}
		else
		{
			rh->resultcode = 404;
			setcefstring("text/html", &rh->mimetype);
			rh->data = strdup("<html><style type=\"text/css\">body {background-color: lightblue;}</style><title>not found</title>File not found within game filesystem.</html>");
			rh->datasize = strlen(rh->data);
		}
	}
	else if (!strncmp(u8_url.str, "fte://ssqc/", 11) || !strncmp(u8_url.str, "fte://csqc/", 11) || !strncmp(u8_url.str, "fte://menu/", 11))
	{
		struct pubprogfuncs_s *progs;
		const char *page;
		if (ext.str)
		{
			cef_string_userfree_t mt = cef_get_mime_type(&ext);
			if (mt)
			{
				cef_string_copy(mt->str, mt->length, &rh->mimetype);
				cef_string_userfree_free(mt);
			}
		}

		rh->resultcode = 404;

		if (!BUILTINISVALID(PR_GetVMInstance))
			progs = NULL;
		else if (!strncmp(u8_url.str, "fte://ssqc/", 11))
			progs = pPR_GetVMInstance(0);	//WARNING: goes direct rather than via the server.
		else if (!strncmp(u8_url.str, "fte://csqc/", 11))
			progs = pPR_GetVMInstance(1);
		else if (!strncmp(u8_url.str, "fte://menu/", 11))
			progs = pPR_GetVMInstance(2);
		else
			progs = NULL;
		
		if (progs)
		{
			func_t func = progs->FindFunction(progs, "Cef_GeneratePage", PR_ANY);
			if (func)
			{
				void *pr_globals = PR_globals(progs, PR_CURRENT);
				((string_t *)pr_globals)[OFS_PARM0] = progs->TempString(progs, u8_url.str+11);
				((string_t *)pr_globals)[OFS_PARM1] = 0;//FIXME: method. PR_TempString(csqcprogs, ""));
				((string_t *)pr_globals)[OFS_PARM2] = 0;//FIXME: post data
				progs->ExecuteProgram(progs, func);

				if (((string_t *)pr_globals)[OFS_RETURN])
				{
					page = progs->StringToNative(progs, ((string_t *)pr_globals)[OFS_RETURN]);
					rh->resultcode = 200;
				}
				else
					page = "<html><style type=\"text/css\">body {background-color: lightblue;}</style><title>not found</title>Cef_GeneratePage returned null</html>";
			}
			else
				page = "<html><style type=\"text/css\">body {background-color: lightblue;}</style><title>not found</title>Cef_GeneratePage not implemented by mod</html>";
		}
		else
			page = "<html><style type=\"text/css\">body {background-color: lightblue;}</style><title>not found</title>That QCVM is not running</html>";

		//FIXME: only return any data if we were successful OR the mime is text/html
		rh->data = strdup(page);
		rh->datasize = strlen(rh->data);
	}
	else
	{
		rh->resultcode = 403;
		setcefstring("text/html", &rh->mimetype);
		rh->data = strdup("<html><style type=\"text/css\">body {background-color: lightblue;}</style><title>forbidden</title><a href=\"fte://data/index.html\">Try here</a> <a href=\"fte://csqc/index.html\">Or try here</a></html>");
		rh->datasize = strlen(rh->data);
	}

	cef_string_userfree_free(url);
	cef_string_utf8_clear(&u8_url);

	callback->cont(callback);	//headers are now known... should be delayed.
	cef_release(callback);
	cef_release(request);
	return 1;	//failure is reported as an http error code rather than an exception
}
static void CEF_CALLBACK resource_handler_get_response_headers(cef_resource_handler_t* self, cef_response_t* response, int64* response_length, cef_string_t* redirectUrl)
{
	fteresource_t *rh = (fteresource_t*)((char*)self - offsetof(fteresource_t, rh));

	if (rh->fh)
		*response_length = VFS_GETLEN(rh->fh);
	else if (rh->data)
		*response_length = rh->datasize;
	else
		*response_length = -1;

	response->set_mime_type(response, &rh->mimetype);
	response->set_status(response, rh->resultcode);

	cef_release(response);
}
static int CEF_CALLBACK resource_handler_read_response(cef_resource_handler_t* self, void* data_out, int bytes_to_read, int* bytes_read, cef_callback_t* callback)
{
	fteresource_t *rh = (fteresource_t*)((char*)self - offsetof(fteresource_t, rh));

	if (rh->fh)
		*bytes_read = VFS_READ(rh->fh, data_out, bytes_to_read);
	else if (rh->data)
	{
		if (bytes_to_read > rh->datasize - rh->offset)
			bytes_to_read = rh->datasize - rh->offset;
		*bytes_read = bytes_to_read;
		memcpy(data_out, rh->data + rh->offset, bytes_to_read);
		rh->offset += bytes_to_read;
	}
	else
		*bytes_read = 0;

	//callback->cont(callback);	//headers are now known... should be delayed.
	cef_release(callback);

	if (*bytes_read <= 0)
	{
		*bytes_read = 0;
		return 0;
	}
	return true;	//more to come
}
static void CEF_CALLBACK resource_handler_cancel(cef_resource_handler_t* self)
{
	fteresource_t *rh = (fteresource_t*)((char*)self - offsetof(fteresource_t, rh));

	if (rh->fh)
		VFS_CLOSE(rh->fh);
	rh->fh = NULL;
	if (rh->data)
		free(rh->data);
	rh->data = NULL;
	rh->offset = 0;
	rh->datasize = 0;
}

static cef_resource_handler_t* CEF_CALLBACK scheme_handler_factory_create(cef_scheme_handler_factory_t* self, cef_browser_t* browser, cef_frame_t* frame, const cef_string_t* scheme_name, cef_request_t* request)
{
	fteresource_t *rh = malloc(sizeof(*rh));
	memset(rh, 0, sizeof(*rh));

	rh->rh.base.size = sizeof(*rh);
	rh->rh.base.add_ref			= resource_handler_addref;
	rh->rh.base.release			= resource_handler_release;
	rh->rh.process_request		= resource_handler_process_request;
	rh->rh.get_response_headers	= resource_handler_get_response_headers;
	rh->rh.read_response		= resource_handler_read_response;
	rh->rh.cancel				= resource_handler_cancel;
	cef_addref(&rh->rh);

	cef_release(browser);
	cef_release(frame);
	cef_release(request);
	return &rh->rh;
}

static void app_initialize(void)
{
	app.base.size = sizeof(app);
	app.get_browser_process_handler = app_get_browser_process_handler;
	app.get_render_process_handler = app_get_render_process_handler;
	app.on_register_custom_schemes = app_on_register_custom_schemes;

	browser_process_handler.base.size = sizeof(browser_process_handler);
	browser_process_handler.on_before_child_process_launch	= browser_process_handler_on_before_child_process_launch;
	browser_process_handler.on_context_initialized			= browser_process_handler_on_context_initialized;

	render_process_handler.base.size = sizeof(render_process_handler);
	render_process_handler.on_context_created				= render_process_handler_on_context_created;
	render_process_handler.on_context_released				= render_process_handler_on_context_released;
	render_process_handler.on_process_message_received		= render_process_handler_on_process_message_received;

	v8handler_query.base.size = sizeof(v8handler_query);
	v8handler_query.execute									= fsfunc_execute;

	scheme_handler_factory.base.size = sizeof(scheme_handler_factory);
	scheme_handler_factory.create							= scheme_handler_factory_create;

	request_context_handler.base.size = sizeof(request_context_handler);
	request_context_handler.on_before_plugin_load			= request_context_handler_on_before_plugin_load;
}
static int cefwasinitialised;

cef_request_context_t *Cef_GetRequestContext(void)
{
	char utf8[MAX_OSPATH];
	cef_request_context_t *ret = NULL;
	qboolean incog;
	
	Cvar_Update(&cef_incognito);
	incog = cef_incognito.value;

	if (!incog)
		ret = request_context;

	if (!ret)
	{
		cef_request_context_settings_t csettings = {sizeof(csettings)};
		csettings.persist_user_preferences = !incog;
		if (!incog && pFS_NativePath("cefcache", FS_ROOT, utf8, sizeof(utf8)))
			cef_string_from_utf8(utf8, strlen(utf8), &csettings.cache_path);	//should be empty for incognito.
		ret = cef_request_context_create_context(&csettings, &request_context_handler);
		cef_string_clear(&csettings.cache_path);
	}
	else
		cef_addref(ret);

	if (!incog && !request_context)
	{
		request_context = ret;
		cef_addref(request_context);
	}
	return ret;
}

static void *Cef_Create(const char *name)
{
	cef_window_info_t window_info = {0};
	cef_browser_settings_t browserSettings = {sizeof(browserSettings)};
	browser_t *newbrowser;
	cef_string_t url = {NULL};

	if (!strcmp(name, "cef"))
		name += 3;
	else if (!strncmp(name, "cef:", 4))
		name += 4;
	else if (!strcmp(name, "http"))
		name += 4;
	else if (!strncmp(name, "http:", 5))
		;
	else if (!strncmp(name, "https:", 6))
		;
	else if (!strncmp(name, "ftp:", 4))
		;
	else
		return NULL;


	if (!cefwasinitialised)
	{
		char utf8[MAX_OSPATH];
		cef_main_args_t mainargs = {0};
		cef_settings_t settings = {sizeof(settings)};

		if (pFS_NativePath("cefcache", FS_ROOT, utf8, sizeof(utf8)))
			cef_string_from_utf8(utf8, strlen(utf8), &settings.cache_path);
		if (pFS_NativePath("cef_debug.log", FS_ROOT, utf8, sizeof(utf8)))
			cef_string_from_utf8(utf8, strlen(utf8), &settings.log_file);

		// CefString(&settings.resources_dir_path).FromASCII("");
		// CefString(&settings.locales_dir_path).FromASCII("");

#ifdef _WIN32
		{
			wchar_t omgwtfamonkey[MAX_OSPATH];
			if (GetModuleFileNameW(NULL, omgwtfamonkey, countof(omgwtfamonkey)))
				cef_string_from_utf16(omgwtfamonkey, wcslen(omgwtfamonkey), &settings.browser_subprocess_path);
			mainargs.instance = GetModuleHandle(NULL);
		}
#endif

#ifdef _DEBUG
		settings.log_severity = LOGSEVERITY_VERBOSE;
#else
		settings.log_severity = LOGSEVERITY_DISABLE;
#endif
		settings.background_color = 0xffffffff;
//		settings.single_process = true;
//		settings.multi_threaded_message_loop = true;
//		settings.command_line_args_disabled = true;

		{
			char *s;
			strcpy(utf8, FULLENGINENAME "/" STRINGIFY(FTE_VER_MAJOR) "." STRINGIFY(FTE_VER_MINOR));
			while((s = strchr(utf8, ' ')))
				*s = '_';
			cef_string_from_utf8(utf8, strlen(utf8), &settings.product_version);
		}

		cefwasinitialised = !!cef_initialize(&mainargs, &settings, &app, NULL);
		cef_string_clear(&settings.browser_subprocess_path);
		cef_string_clear(&settings.product_version);
		cef_string_clear(&settings.cache_path);
		cef_string_clear(&settings.log_file);
	}

	if (!cefwasinitialised)
		return NULL;

	Cvar_Update(&cef_allowplugins);

	//tbh, web browser's are so horribly insecure that it seems pointless to even try disabling stuff that might be useful
	browserSettings.windowless_frame_rate = 60;
	browserSettings.javascript_close_windows = STATE_DISABLED;
	browserSettings.javascript_open_windows = STATE_DISABLED;
	browserSettings.javascript_access_clipboard = STATE_DISABLED;
//	browserSettings.universal_access_from_file_urls = STATE_DISABLED;
//	browserSettings.file_access_from_file_urls = STATE_DISABLED;
	browserSettings.remote_fonts = STATE_DISABLED;
	browserSettings.plugins = STATE_DISABLED;
	browserSettings.background_color = 0xffffffff;

	window_info.windowless_rendering_enabled = true;
	memset(&window_info.parent_window, 0, sizeof(window_info.parent_window));
	window_info.transparent_painting_enabled = true;

	newbrowser = browser_create();
	if (!newbrowser)
		return NULL;

	if (!*name || !strcmp(name, "http:") || !strcmp(name, "https:"))
		name = "about:blank";
	cef_string_from_utf8(name, strlen(name), &url);

	cef_addref(&newbrowser->client);
	newbrowser->thebrowser = pcef_browser_host_create_browser_sync(&window_info, &newbrowser->client, &url, &browserSettings, Cef_GetRequestContext());
	cef_string_to_utf8(url.str, url.length, &newbrowser->currenturl);
	cef_string_clear(&url);
	if (!newbrowser->thebrowser)
	{
		browser_release(newbrowser);
		return NULL;	//cef fucked up.
	}

	Cvar_Update(&cef_devtools);
	if (cef_devtools.value)
	{
		cef_browser_host_t *host = newbrowser->thebrowser->get_host(newbrowser->thebrowser);
		browser_t *devtools = browser_create();
		
#ifdef _WIN32
		window_info.style = WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_VISIBLE;
		window_info.parent_window = NULL;
		window_info.x = CW_USEDEFAULT;
		window_info.y = CW_USEDEFAULT;
		window_info.width = CW_USEDEFAULT;
		window_info.height = CW_USEDEFAULT;
		window_info.window_name = makecefstring("CEF Dev Tools");
#else
		memset(&window_info.parent_window, 0, sizeof(window_info.parent_window));
		window_info.x = 0;
		window_info.y = 0;
		window_info.width = 320;
		window_info.height = 240;
#endif
		window_info.windowless_rendering_enabled = false;

		cef_addref(&devtools->client);
		host->show_dev_tools(host, &window_info, &devtools->client, &browserSettings
#if CEF_COMMIT_NUMBER >= 1373	//not sure about the actual revision
			, NULL
#endif
			);
		cef_release(host);
		browser_release(devtools);	//cef should continue to hold a reference to it while its visible, but its otherwise out of engine now.

#ifdef _WIN32
		cef_string_clear(&window_info.window_name);
#endif
	}

	return (void*)newbrowser;
}
static qboolean VARGS Cef_DisplayFrame(void *ctx, qboolean nosound, qboolean forcevideo, double mediatime, void (QDECL *uploadtexture)(void *ectx, uploadfmt_t fmt, int width, int height, void *data, void *palette), void *ectx)
{
	browser_t *browser = (browser_t*)ctx;
	if (browser->updated || forcevideo)
	{
		uploadtexture(ectx, TF_BGRA32, browser->videowidth, browser->videoheight, browser->videodata, NULL);
		browser->updated = false;
	}
	return true;
}
static void Cef_Destroy(void *ctx)
{	//engine isn't allowed to talk about the browser any more. kill it.
	browser_t *br = (browser_t*)ctx;
	cef_browser_host_t *host = br->thebrowser->get_host(br->thebrowser);
	host->close_browser(host, true);
	cef_release(host);
	if (br->thebrowser)
	{
		cef_release(br->thebrowser);
		br->thebrowser = NULL;
	}

	//now release our reference to it.
	browser_release(br);	//hopefully this should be the last reference, but we might be waiting for something on the cef side. hopefully nothing blocking on an unload event...
}

static void VARGS Cef_CursorMove (void *ctx, float posx, float posy)
{
	browser_t *br = (browser_t*)ctx;
	cef_browser_host_t *host = br->thebrowser->get_host(br->thebrowser);
	br->mousepos.x = (int)(posx * br->desiredwidth);
	br->mousepos.y = (int)(posy * br->desiredheight);
	br->mousepos.modifiers = 0;
	host->send_mouse_move_event(host, &br->mousepos, false);
	cef_release(host);
}

static void VARGS Cef_Key (void *ctx, int code, int unicode, int event)
{
	browser_t *browser = (browser_t*)ctx;
	cef_browser_host_t *host = browser->thebrowser->get_host(browser->thebrowser);

	//handle mouse buttons
	if (code >= K_MOUSE1 && code <= K_MOUSE3)
	{
		int buttons[] = {MBT_LEFT, MBT_RIGHT, MBT_MIDDLE};
		if (!event || browser->keystate[code])
			host->send_mouse_click_event(host, &browser->mousepos, buttons[code-K_MOUSE1], event?true:false, 1);
		if (event)
			browser->keystate[code] = 0;
		else
			browser->keystate[code] = 1;
		cef_release(host);
		return;
	}

	//handle mouse wheels
	if (code == K_MWHEELUP || code == K_MWHEELDOWN)
	{
		if (!event)
			host->send_mouse_wheel_event(host, &browser->mousepos, 0, (code == K_MWHEELDOWN)?-32:32);
		cef_release(host);
		return;
	}

	//handle keypress/release events
	if (code)
	{
		cef_key_event_t kev = {0};
		if (event && !browser->keystate[code])
		{
			cef_release(host);
			return;	//releasing a key that is already released is weird.
		}

		kev.type = event?KEYEVENT_KEYUP:KEYEVENT_RAWKEYDOWN;
		kev.modifiers = 0;
		switch(code)
		{
		case 0:				kev.windows_key_code = 0;					break;
		case K_UPARROW:		kev.windows_key_code = 0x26/*VK_UP*/;		break;
		case K_DOWNARROW:	kev.windows_key_code = 0x28/*VK_DOWN*/;		break;
		case K_LEFTARROW:	kev.windows_key_code = 0x25/*VK_LEFT*/;		break;
		case K_RIGHTARROW:	kev.windows_key_code = 0x27/*VK_RIGHT*/;	break;
		case K_ESCAPE:		kev.windows_key_code = 0x1b/*VK_ESCAPE*/;	break;
		case K_SPACE:		kev.windows_key_code = 0x20/*VK_SPACE*/;	break;
		case K_RSHIFT:		kev.windows_key_code = 0x10/*VK_SHIFT*/;	break;
		case K_LSHIFT:		kev.windows_key_code = 0x10/*VK_SHIFT*/;	break;
		case K_RCTRL:		kev.windows_key_code = 0x11/*VK_CONTROL*/;	break;
		case K_LCTRL:		kev.windows_key_code = 0x11/*VK_CONTROL*/;	break;
		case K_RALT:		kev.windows_key_code = 0x12/*VK_MENU*/;		break;
		case K_LALT:		kev.windows_key_code = 0x12/*VK_MENU*/;		break;
		case K_TAB:			kev.windows_key_code = 0x09/*VK_TAB*/;		break;
		case K_RWIN:		kev.windows_key_code = 0x5c/*VK_RWIN*/;		break;
		case K_LWIN:		kev.windows_key_code = 0x5b/*VK_LWIN*/;		break;
		case K_APP:			kev.windows_key_code = 0x5d/*VK_APPS*/;		break;
		case K_F1:			kev.windows_key_code = 0x70/*VK_F1*/;		break;
		case K_F2:			kev.windows_key_code = 0x71/*VK_F2*/;		break;
		case K_F3:			kev.windows_key_code = 0x72/*VK_F3*/;		break;
		case K_F4:			kev.windows_key_code = 0x73/*VK_F4*/;		break;
		case K_F5:			kev.windows_key_code = 0x74/*VK_F5*/;		break;
		case K_F6:			kev.windows_key_code = 0x75/*VK_F6*/;		break;
		case K_F7:			kev.windows_key_code = 0x76/*VK_F7*/;		break;
		case K_F8:			kev.windows_key_code = 0x77/*VK_F8*/;		break;
		case K_F9:			kev.windows_key_code = 0x78/*VK_F9*/;		break;
		case K_F10:			kev.windows_key_code = 0x79/*VK_F10*/;		break;
		case K_F11:			kev.windows_key_code = 0x81/*VK_F11*/;		break;
		case K_F12:			kev.windows_key_code = 0x82/*VK_F12*/;		break;
		case K_BACKSPACE:	kev.windows_key_code = 0x08/*VK_BACK*/;		break;
		case K_DEL:			kev.windows_key_code = 0x2e/*VK_DELETE*/;	break;
		case K_HOME:		kev.windows_key_code = 0x24/*VK_HOME*/;		break;
		case K_END:			kev.windows_key_code = 0x23/*VK_END*/;		break;
		case K_INS:			kev.windows_key_code = 0x2d/*VK_INSERT*/;	break;
		case K_PGUP:		kev.windows_key_code = 0x21/*VK_PRIOR*/;	break;
		case K_PGDN:		kev.windows_key_code = 0x22/*VK_NEXT*/;		break;

		default:
			if ((code >= 0x30 && code <= 0x39) || (code >= 0x41 && code <= 0x5a))
				kev.windows_key_code = code;
			else if (code >= 'a' && code <= 'z')
				kev.windows_key_code = (code-'a') + 'A';
			else
				kev.windows_key_code = 0;
			break;
		}
		kev.native_key_code = unicode<<16;

		if (browser->keystate[code])
			kev.native_key_code |= 1<<30;
		if (event)
			kev.native_key_code |= 1<<31;

		if (event)
			browser->keystate[code] = 0;
		else
			browser->keystate[code] = 1;

		kev.is_system_key = 0;
		kev.character = unicode;
		kev.unmodified_character = unicode;
		kev.focus_on_editable_field = true;
		host->send_key_event(host, &kev);
	}

	//handle text input events (down events only)
	if (unicode && !event)
	{
		cef_key_event_t kev;

		kev.type = KEYEVENT_CHAR;
		kev.modifiers = 0;
	
		kev.windows_key_code = unicode;
		kev.native_key_code = unicode<<16;

		if (browser->keystate[code])
			kev.native_key_code |= 1<<30;
		if (event)
			kev.native_key_code |= 1<<31;

		kev.is_system_key = 0;
		kev.character = unicode;
		kev.unmodified_character = unicode;
		kev.focus_on_editable_field = true;
		host->send_key_event(host, &kev);
	}
	cef_release(host);
}
static qboolean VARGS Cef_SetSize (void *ctx, int width, int height)
{
	browser_t *browser = (browser_t*)ctx;
	cef_browser_host_t *host = browser->thebrowser->get_host(browser->thebrowser);
	if (browser->desiredwidth != width || browser->desiredheight != height)
	{
		browser->desiredwidth = width;
		browser->desiredheight = height;
		host->was_resized(host);
	}
	cef_release(host);
	return qtrue;
}
static void VARGS Cef_GetSize (void *ctx, int *width, int *height)
{
	//this specifies the logical size/aspect of the browser object
	browser_t *browser = (browser_t*)ctx;
	*width = browser->desiredwidth;
	*height = browser->desiredheight;
}
static void VARGS Cef_ChangeStream (void *ctx, const char *streamname)
{
	browser_t *browser = (browser_t*)ctx;
	cef_browser_host_t *host = browser->thebrowser->get_host(browser->thebrowser);
	cef_frame_t *frame = NULL;
	if (!strncmp(streamname, "cmd:", 4))
	{
		const char *cmd = streamname+4;
		if (!strcmp(cmd, "focus"))
			host->send_focus_event(host, true);
		else if (!strcmp(cmd, "unfocus"))
			host->send_focus_event(host, false);
		else if (!strcmp(cmd, "refresh"))
			browser->thebrowser->reload(browser->thebrowser);
		else if (!strcmp(cmd, "transparent"))
;
		else if (!strcmp(cmd, "opaque"))
;
		else if (!strcmp(cmd, "stop"))
			browser->thebrowser->stop_load(browser->thebrowser);
		else if (!strcmp(cmd, "back"))
			browser->thebrowser->go_back(browser->thebrowser);
		else if (!strcmp(cmd, "forward"))
			browser->thebrowser->go_forward(browser->thebrowser);
		else
		{
			frame = browser->thebrowser->get_focused_frame(browser->thebrowser);
			if (!strcmp(cmd, "undo"))
				frame->undo(frame);
			else if (!strcmp(cmd, "redo"))
				frame->redo(frame);
			else if (!strcmp(cmd, "cut"))
				frame->cut(frame);
			else if (!strcmp(cmd, "copy"))
				frame->copy(frame);
			else if (!strcmp(cmd, "paste"))
				;//frame->paste(frame);	//possible security hole, as this uses the system clipboard
			else if (!strcmp(cmd, "del"))
				frame->del(frame);
			else if (!strcmp(cmd, "selectall"))
				frame->select_all(frame);
			else
				Con_Printf("unrecognised cmd: %s\n", cmd);
		}
	}
	else if (!strncmp(streamname, "javascript:", 11))
	{
		cef_string_t thescript = {NULL};
		cef_string_t url = {NULL};
		cef_string_from_utf8(streamname+11, strlen(streamname+11), &thescript);
		cef_string_from_utf8("http://localhost/", strlen("http://localhost/"), &url);
		frame = browser->thebrowser->get_main_frame(browser->thebrowser);
		frame->execute_java_script(frame, &thescript, &url, 1);
		cef_string_clear(&thescript);
		cef_string_clear(&url);
	}
	else if (!strncmp(streamname, "raw:", 4))
	{
		cef_string_t thehtml = {NULL};
		cef_string_t url = {NULL};
		cef_string_from_utf8(streamname+4, strlen(streamname+4), &thehtml);
		cef_string_from_utf8("http://localhost/", strlen("http://localhost/"), &url);
		frame = browser->thebrowser->get_main_frame(browser->thebrowser);
		frame->load_string(frame, &thehtml, &url);
		cef_string_clear(&thehtml);
		cef_string_clear(&url);
	}
	else if (*streamname && strcmp(streamname, "http:") && strcmp(streamname, "https:"))
	{
		cef_string_t url = {NULL};
		cef_string_from_utf8(streamname, strlen(streamname), &url);
		frame = browser->thebrowser->get_main_frame(browser->thebrowser);
		frame->load_url(frame, &url);
		cef_string_clear(&url);
	}
	if (frame)
		cef_release(frame);
	cef_release(host);
}

qboolean VARGS Cef_GetProperty (void *ctx, const char *field, char *out, size_t *outsize)
{
	browser_t *browser = (browser_t*)ctx;
	const char *ret = NULL;
	if (!strcmp(field, "url"))
		ret = browser->currenturl.str;
	else if (!strcmp(field, "title"))
		ret = browser->currenttitle.str;
	else if (!strcmp(field, "status"))
		ret = browser->currentstatus.str;

	if (ret)
	{
		size_t retsize = strlen(ret);
		if (out)
		{
			if (*outsize < retsize)
				return false;	//caller fucked up
			memcpy(out, ret, retsize);
		}
		*outsize = retsize;
		return true;
	}
	return false;
}

static media_decoder_funcs_t decoderfuncs;

static qintptr_t Cef_Tick(qintptr_t *args)
{
	if (cefwasinitialised)
	{
		cef_do_message_loop_work();

		/* libcef can't cope with this.
		if (!numbrowsers)
		{
			if (request_context)
			{
				cef_release(request_context);
				request_context = NULL;
			}
			cef_shutdown();
			cefwasinitialised = false;
		}
		*/
	}
	return 0;
}
static qintptr_t Cef_Shutdown(qintptr_t *args)
{
	if (cefwasinitialised)
	{
		int tries = 1000*10;//60*5;	//keep trying for a duration (in ms)... give up after then as it just isn't working.
		while(numbrowsers && tries > 0)
		{
			cef_do_message_loop_work();

			tries -= 10;
#ifdef _WIN32
			Sleep(10);
#else
			usleep(10*1000);
#endif
		}
#ifdef _WIN32
		if (numbrowsers)
		{	//this really should NOT be happening.
			MessageBox(NULL, "Browsers are still open", "CEF Fuckup", 0);
		}
#endif
		if (request_context)
		{
			cef_release(request_context);
			request_context = NULL;
		}
		cef_shutdown();
		cefwasinitialised = false;
		numbrowsers = 0;
	}

#if defined(_DEBUG) && defined(_MSC_VER)
//	_CrtDumpMemoryLeaks();
#endif

	return 0;
}

#ifndef _WIN32
int argc=0;
char *argv[64];
char commandline[8192];
static void SetupArgv(void)
{
	if (argc)
		return;
	int i;
	FILE *f = fopen("/proc/self/cmdline", "r");
	char *e = commandline+fread(commandline, 1, sizeof(commandline), f);
	fclose(f);
	char *s = commandline;
	while(s < e)
	{
		argv[argc++] = s;
		while(*s)
			s++;
		s++;
	}
}
#endif

//if we're a subprocess and somehow failed to add the --dllwrapper arg to the engine, then make sure we're not starting endless processes.
static qboolean Cef_Init(qboolean engineprocess)
{
#ifdef _WIN32
	cef_main_args_t args = {GetModuleHandle(NULL)};
#else
	SetupArgv();
	cef_main_args_t args = {argc, argv};
#endif

	{
		int result;

		dllfunction_t ceffuncs[] =
		{
			{(void **)&cef_api_hash,						"cef_api_hash"},
			{(void **)&cef_version_info,					"cef_version_info"},
			{(void **)&cef_initialize,						"cef_initialize"},
			{(void **)&cef_do_message_loop_work,			"cef_do_message_loop_work"},
			{(void **)&cef_shutdown,						"cef_shutdown"},
			{(void **)&cef_execute_process,					"cef_execute_process"},
			{(void **)&cef_browser_host_create_browser_sync,"cef_browser_host_create_browser_sync"},
			{(void **)&cef_string_utf8_to_utf16,			"cef_string_utf8_to_utf16"},
			{(void **)&cef_string_utf16_to_utf8,			"cef_string_utf16_to_utf8"},
			{(void **)&cef_string_utf16_clear,				"cef_string_utf16_clear"},
			{(void **)&cef_string_utf16_set,				"cef_string_utf16_set"},
			{(void **)&cef_string_utf8_clear,				"cef_string_utf8_clear"},
			{(void **)&cef_string_utf8_set,					"cef_string_utf8_set"},
			{(void **)&cef_string_userfree_utf16_free,		"cef_string_userfree_utf16_free"},
			{(void **)&cef_register_scheme_handler_factory,	"cef_register_scheme_handler_factory"},
			{(void **)&cef_get_mime_type,					"cef_get_mime_type"},
			{(void **)&cef_v8value_create_function,			"cef_v8value_create_function"},
			{(void **)&cef_v8value_create_string,			"cef_v8value_create_string"},
			{(void **)&cef_process_message_create,			"cef_process_message_create"},
			{(void **)&cef_v8context_get_current_context,	"cef_v8context_get_current_context"},
			{(void **)&cef_post_task,						"cef_post_task"},
			{(void **)&cef_request_context_create_context,	"cef_request_context_create_context"},
			{NULL}
		};
		if (!Sys_LoadLibrary("libcef", ceffuncs))
		{
			if (engineprocess)
				Con_Printf("Unable to load libcef (version "CEF_VERSION")\n");
			return false;
		}

		if (engineprocess)
		{
			Con_Printf("libcef %i.%i: chrome %i.%i (%i)\n", cef_version_info(0), cef_version_info(1), cef_version_info(2), cef_version_info(3), cef_version_info(4));
			if (strcmp(cef_api_hash(0), CEF_API_HASH_PLATFORM))
			{	//the libcef api hash can be used to see if there's an api change that might break stuff.
				//refuse to load it if the api changed.
				Con_Printf("libcef outdated. Please install libcef version "CEF_VERSION"\n");
				return false;
			}
		}


		app_initialize();
		result = cef_execute_process(&args, &app, 0);
		if (result >= 0 || !engineprocess)
		{	//result is meant to be the exit code that the child process is meant to exit with
			//either way, we really don't want to return to the engine because that would run a second instance of it.
			exit(result);
			return qfalse;
		}
	}
	return qtrue;
}
//works with the --dllwrapper engine argument
int NATIVEEXPORT CefSubprocessInit(void)
{
	return Cef_Init(false);
}

static qintptr_t Cef_ExecuteCommand(qintptr_t *args)
{
	char cmd[256];
	pCmd_Argv(0, cmd, sizeof(cmd));
	if (!strcmp(cmd, "cef"))
	{
		if (BUILTINISVALID(Con_SetConsoleFloat))
		{
			static int sequence;
			char f[128];
			char videomap[8192];
			Q_snprintf(f, sizeof(f), "libcef:%i", ++sequence);
			newconsole = f;
			strcpy(videomap, "cef:");
			pCmd_Argv(1, videomap+4, sizeof(videomap)-4);
			if (!videomap[4])
				strcpy(videomap, "cef:http://fte.triptohell.info");
		
			pCon_SetConsoleString(f, "title", videomap+4);
			pCon_SetConsoleFloat(f, "iswindow", true);
			pCon_SetConsoleFloat(f, "forceutf8", true);
			pCon_SetConsoleFloat(f, "wnd_w", 640+16);
			pCon_SetConsoleFloat(f, "wnd_h", 480+16+8);
			pCon_SetConsoleString(f, "backvideomap", videomap);
			pCon_SetConsoleFloat(f, "linebuffered", 2);
			pCon_SetActive(f);

			newconsole = NULL;
		}
		return true;
	}
	return false;
}

qintptr_t Plug_Init(qintptr_t *args)
{
	CHECKBUILTIN(Plug_GetPluginName);
	CHECKBUILTIN(FS_NativePath);
	if (!BUILTINISVALID(Plug_GetPluginName) || !BUILTINISVALID(FS_NativePath))
	{
		Con_Printf("CEF plugin failed: Engine too old\n");
		return false;
	}
	pPlug_GetPluginName(-1, plugname, sizeof(plugname));
	if (!Plug_Export("Tick", Cef_Tick))
	{
		Con_Printf("CEF plugin failed: Engine doesn't support Tick feature\n");
		return false;
	}
	if (!Plug_Export("Shutdown", Cef_Shutdown))
	{
		Con_Printf("CEF plugin failed: Engine doesn't support Shutdown feature\n");
		return false;
	}


	decoderfuncs.structsize = sizeof(media_decoder_funcs_t);
	decoderfuncs.drivername = "cef";
	decoderfuncs.createdecoder = Cef_Create;
	decoderfuncs.decodeframe = Cef_DisplayFrame;
	decoderfuncs.shutdown = Cef_Destroy;
	decoderfuncs.cursormove = Cef_CursorMove;
	decoderfuncs.key = Cef_Key;
	decoderfuncs.setsize = Cef_SetSize;
	decoderfuncs.getsize = Cef_GetSize;
	decoderfuncs.changestream = Cef_ChangeStream;
	decoderfuncs.getproperty = Cef_GetProperty;

	if (!pPlug_ExportNative("Media_VideoDecoder", &decoderfuncs))
	{
		Con_Printf("CEF plugin failed: Engine doesn't support media decoder plugins\n");
		return false;
	}

	if (!Cef_Init(true))
		return false;

	if (Plug_Export("ExecuteCommand", Cef_ExecuteCommand))
		pCmd_AddCommand("cef");

	Cvar_Register(&cef_incognito);
	Cvar_Register(&cef_allowplugins);
	Cvar_Register(&cef_allowcvars);
	Cvar_Register(&cef_devtools);

	return true;
}