/* ** $Id: lbaselib.c,v 1.191.1.6 2008/02/14 16:46:22 roberto Exp $ ** Basic library ** See Copyright Notice in lua.h */ #include #include #include #include #define lbaselib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "lualib.h" /* ** If your system does not support `stdout', you can just remove this function. ** If you need, you can define your own `print' function, following this ** model but changing `fputs' to put the strings at a proper place ** (a console window or a log file, for instance). */ static int luaB_print (lua_State *L) { int n = lua_gettop(L); /* number of arguments */ int i; lua_getglobal(L, "tostring"); for (i=1; i<=n; i++) { const char *s; lua_pushvalue(L, -1); /* function to be called */ lua_pushvalue(L, i); /* value to print */ lua_call(L, 1, 1); s = lua_tostring(L, -1); /* get result */ if (s == NULL) return luaL_error(L, LUA_QL("tostring") " must return a string to " LUA_QL("print")); if (i>1) fputs("\t", stdout); fputs(s, stdout); lua_pop(L, 1); /* pop result */ } fputs("\n", stdout); return 0; } static int luaB_tonumber (lua_State *L) { int base = luaL_optint(L, 2, 10); if (base == 10) { /* standard conversion */ luaL_checkany(L, 1); if (lua_isnumber(L, 1)) { lua_pushnumber(L, lua_tonumber(L, 1)); return 1; } } else { const char *s1 = luaL_checkstring(L, 1); char *s2; unsigned long n; luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range"); n = strtoul(s1, &s2, base); if (s1 != s2) { /* at least one valid digit? */ while (isspace((unsigned char)(*s2))) s2++; /* skip trailing spaces */ if (*s2 == '\0') { /* no invalid trailing characters? */ lua_pushnumber(L, (lua_Number)n); return 1; } } } lua_pushnil(L); /* else not a number */ return 1; } static int luaB_error (lua_State *L) { int level = luaL_optint(L, 2, 1); lua_settop(L, 1); if (lua_isstring(L, 1) && level > 0) { /* add extra information? */ luaL_where(L, level); lua_pushvalue(L, 1); lua_concat(L, 2); } return lua_error(L); } static int luaB_getmetatable (lua_State *L) { luaL_checkany(L, 1); if (!lua_getmetatable(L, 1)) { lua_pushnil(L); return 1; /* no metatable */ } luaL_getmetafield(L, 1, "__metatable"); return 1; /* returns either __metatable field (if present) or metatable */ } static int luaB_setmetatable (lua_State *L) { int t = lua_type(L, 2); luaL_checktype(L, 1, LUA_TTABLE); luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2, "nil or table expected"); if (luaL_getmetafield(L, 1, "__metatable")) luaL_error(L, "cannot change a protected metatable"); lua_settop(L, 2); lua_setmetatable(L, 1); return 1; } static void getfunc (lua_State *L, int opt) { if (lua_isfunction(L, 1)) lua_pushvalue(L, 1); else { lua_Debug ar; int level = opt ? luaL_optint(L, 1, 1) : luaL_checkint(L, 1); luaL_argcheck(L, level >= 0, 1, "level must be non-negative"); if (lua_getstack(L, level, &ar) == 0) luaL_argerror(L, 1, "invalid level"); lua_getinfo(L, "f", &ar); if (lua_isnil(L, -1)) luaL_error(L, "no function environment for tail call at level %d", level); } } static int luaB_getfenv (lua_State *L) { getfunc(L, 1); if (lua_iscfunction(L, -1)) /* is a C function? */ lua_pushvalue(L, LUA_GLOBALSINDEX); /* return the thread's global env. */ else lua_getfenv(L, -1); return 1; } static int luaB_setfenv (lua_State *L) { luaL_checktype(L, 2, LUA_TTABLE); getfunc(L, 0); lua_pushvalue(L, 2); if (lua_isnumber(L, 1) && lua_tonumber(L, 1) == 0) { /* change environment of current thread */ lua_pushthread(L); lua_insert(L, -2); lua_setfenv(L, -2); return 0; } else if (lua_iscfunction(L, -2) || lua_setfenv(L, -2) == 0) luaL_error(L, LUA_QL("setfenv") " cannot change environment of given object"); return 1; } static int luaB_rawequal (lua_State *L) { luaL_checkany(L, 1); luaL_checkany(L, 2); lua_pushboolean(L, lua_rawequal(L, 1, 2)); return 1; } static int luaB_rawget (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); luaL_checkany(L, 2); lua_settop(L, 2); lua_rawget(L, 1); return 1; } static int luaB_rawset (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); luaL_checkany(L, 2); luaL_checkany(L, 3); lua_settop(L, 3); lua_rawset(L, 1); return 1; } static int luaB_gcinfo (lua_State *L) { lua_pushinteger(L, lua_getgccount(L)); return 1; } static int luaB_collectgarbage (lua_State *L) { static const char *const opts[] = {"stop", "restart", "collect", "count", "step", "setpause", "setstepmul", NULL}; static const int optsnum[] = {LUA_GCSTOP, LUA_GCRESTART, LUA_GCCOLLECT, LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL}; int o = luaL_checkoption(L, 1, "collect", opts); int ex = luaL_optint(L, 2, 0); int res = lua_gc(L, optsnum[o], ex); switch (optsnum[o]) { case LUA_GCCOUNT: { int b = lua_gc(L, LUA_GCCOUNTB, 0); lua_pushnumber(L, res + ((lua_Number)b/1024)); return 1; } case LUA_GCSTEP: { lua_pushboolean(L, res); return 1; } default: { lua_pushnumber(L, res); return 1; } } } static int luaB_type (lua_State *L) { luaL_checkany(L, 1); lua_pushstring(L, luaL_typename(L, 1)); return 1; } static int luaB_next (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); lua_settop(L, 2); /* create a 2nd argument if there isn't one */ if (lua_next(L, 1)) return 2; else { lua_pushnil(L); return 1; } } static int luaB_pairs (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */ lua_pushvalue(L, 1); /* state, */ lua_pushnil(L); /* and initial value */ return 3; } static int ipairsaux (lua_State *L) { int i = luaL_checkint(L, 2); luaL_checktype(L, 1, LUA_TTABLE); i++; /* next value */ lua_pushinteger(L, i); lua_rawgeti(L, 1, i); return (lua_isnil(L, -1)) ? 0 : 2; } static int luaB_ipairs (lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */ lua_pushvalue(L, 1); /* state, */ lua_pushinteger(L, 0); /* and initial value */ return 3; } static int load_aux (lua_State *L, int status) { if (status == 0) /* OK? */ return 1; else { lua_pushnil(L); lua_insert(L, -2); /* put before error message */ return 2; /* return nil plus error message */ } } static int luaB_loadstring (lua_State *L) { size_t l; const char *s = luaL_checklstring(L, 1, &l); const char *chunkname = luaL_optstring(L, 2, s); return load_aux(L, luaL_loadbuffer(L, s, l, chunkname)); } static int luaB_loadfile (lua_State *L) { const char *fname = luaL_optstring(L, 1, NULL); return load_aux(L, luaL_loadfile(L, fname)); } /* ** Reader for generic `load' function: `lua_load' uses the ** stack for internal stuff, so the reader cannot change the ** stack top. Instead, it keeps its resulting string in a ** reserved slot inside the stack. */ static const char *generic_reader (lua_State *L, void *ud, size_t *size) { (void)ud; /* to avoid warnings */ luaL_checkstack(L, 2, "too many nested functions"); lua_pushvalue(L, 1); /* get function */ lua_call(L, 0, 1); /* call it */ if (lua_isnil(L, -1)) { *size = 0; return NULL; } else if (lua_isstring(L, -1)) { lua_replace(L, 3); /* save string in a reserved stack slot */ return lua_tolstring(L, 3, size); } else luaL_error(L, "reader function must return a string"); return NULL; /* to avoid warnings */ } static int luaB_load (lua_State *L) { int status; const char *cname = luaL_optstring(L, 2, "=(load)"); luaL_checktype(L, 1, LUA_TFUNCTION); lua_settop(L, 3); /* function, eventual name, plus one reserved slot */ status = lua_load(L, generic_reader, NULL, cname); return load_aux(L, status); } static int luaB_dofile (lua_State *L) { const char *fname = luaL_optstring(L, 1, NULL); int n = lua_gettop(L); if (luaL_loadfile(L, fname) != 0) lua_error(L); lua_call(L, 0, LUA_MULTRET); return lua_gettop(L) - n; } static int luaB_assert (lua_State *L) { luaL_checkany(L, 1); if (!lua_toboolean(L, 1)) return luaL_error(L, "%s", luaL_optstring(L, 2, "assertion failed!")); return lua_gettop(L); } static int luaB_unpack (lua_State *L) { int i, e, n; luaL_checktype(L, 1, LUA_TTABLE); i = luaL_optint(L, 2, 1); e = luaL_opt(L, luaL_checkint, 3, luaL_getn(L, 1)); if (i > e) return 0; /* empty range */ n = e - i + 1; /* number of elements */ if (n <= 0 || !lua_checkstack(L, n)) /* n <= 0 means arith. overflow */ return luaL_error(L, "too many results to unpack"); lua_rawgeti(L, 1, i); /* push arg[i] (avoiding overflow problems) */ while (i++ < e) /* push arg[i + 1...e] */ lua_rawgeti(L, 1, i); return n; } static int luaB_select (lua_State *L) { int n = lua_gettop(L); if (lua_type(L, 1) == LUA_TSTRING && *lua_tostring(L, 1) == '#') { lua_pushinteger(L, n-1); return 1; } else { int i = luaL_checkint(L, 1); if (i < 0) i = n + i; else if (i > n) i = n; luaL_argcheck(L, 1 <= i, 1, "index out of range"); return n - i; } } static int luaB_pcall (lua_State *L) { int status; luaL_checkany(L, 1); status = lua_pcall(L, lua_gettop(L) - 1, LUA_MULTRET, 0); lua_pushboolean(L, (status == 0)); lua_insert(L, 1); return lua_gettop(L); /* return status + all results */ } static int luaB_xpcall (lua_State *L) { int status; luaL_checkany(L, 2); lua_settop(L, 2); lua_insert(L, 1); /* put error function under function to be called */ status = lua_pcall(L, 0, LUA_MULTRET, 1); lua_pushboolean(L, (status == 0)); lua_replace(L, 1); return lua_gettop(L); /* return status + all results */ } static int luaB_tostring (lua_State *L) { luaL_checkany(L, 1); if (luaL_callmeta(L, 1, "__tostring")) /* is there a metafield? */ return 1; /* use its value */ switch (lua_type(L, 1)) { case LUA_TNUMBER: lua_pushstring(L, lua_tostring(L, 1)); break; case LUA_TSTRING: lua_pushvalue(L, 1); break; case LUA_TBOOLEAN: lua_pushstring(L, (lua_toboolean(L, 1) ? "true" : "false")); break; case LUA_TNIL: lua_pushliteral(L, "nil"); break; default: lua_pushfstring(L, "%s: %p", luaL_typename(L, 1), lua_topointer(L, 1)); break; } return 1; } static int luaB_newproxy (lua_State *L) { lua_settop(L, 1); lua_newuserdata(L, 0); /* create proxy */ if (lua_toboolean(L, 1) == 0) return 1; /* no metatable */ else if (lua_isboolean(L, 1)) { lua_newtable(L); /* create a new metatable `m' ... */ lua_pushvalue(L, -1); /* ... and mark `m' as a valid metatable */ lua_pushboolean(L, 1); lua_rawset(L, lua_upvalueindex(1)); /* weaktable[m] = true */ } else { int validproxy = 0; /* to check if weaktable[metatable(u)] == true */ if (lua_getmetatable(L, 1)) { lua_rawget(L, lua_upvalueindex(1)); validproxy = lua_toboolean(L, -1); lua_pop(L, 1); /* remove value */ } luaL_argcheck(L, validproxy, 1, "boolean or proxy expected"); lua_getmetatable(L, 1); /* metatable is valid; get it */ } lua_setmetatable(L, 2); return 1; } static const luaL_Reg base_funcs[] = { {"assert", luaB_assert}, {"collectgarbage", luaB_collectgarbage}, {"dofile", luaB_dofile}, {"error", luaB_error}, {"gcinfo", luaB_gcinfo}, {"getfenv", luaB_getfenv}, {"getmetatable", luaB_getmetatable}, {"loadfile", luaB_loadfile}, {"load", luaB_load}, {"loadstring", luaB_loadstring}, {"next", luaB_next}, {"pcall", luaB_pcall}, {"print", luaB_print}, {"rawequal", luaB_rawequal}, {"rawget", luaB_rawget}, {"rawset", luaB_rawset}, {"select", luaB_select}, {"setfenv", luaB_setfenv}, {"setmetatable", luaB_setmetatable}, {"tonumber", luaB_tonumber}, {"tostring", luaB_tostring}, {"type", luaB_type}, {"unpack", luaB_unpack}, {"xpcall", luaB_xpcall}, {NULL, NULL} }; /* ** {====================================================== ** Coroutine library ** ======================================================= */ #define CO_RUN 0 /* running */ #define CO_SUS 1 /* suspended */ #define CO_NOR 2 /* 'normal' (it resumed another coroutine) */ #define CO_DEAD 3 static const char *const statnames[] = {"running", "suspended", "normal", "dead"}; static int costatus (lua_State *L, lua_State *co) { if (L == co) return CO_RUN; switch (lua_status(co)) { case LUA_YIELD: return CO_SUS; case 0: { lua_Debug ar; if (lua_getstack(co, 0, &ar) > 0) /* does it have frames? */ return CO_NOR; /* it is running */ else if (lua_gettop(co) == 0) return CO_DEAD; else return CO_SUS; /* initial state */ } default: /* some error occured */ return CO_DEAD; } } static int luaB_costatus (lua_State *L) { lua_State *co = lua_tothread(L, 1); luaL_argcheck(L, co, 1, "coroutine expected"); lua_pushstring(L, statnames[costatus(L, co)]); return 1; } static int auxresume (lua_State *L, lua_State *co, int narg) { int status = costatus(L, co); if (!lua_checkstack(co, narg)) luaL_error(L, "too many arguments to resume"); if (status != CO_SUS) { lua_pushfstring(L, "cannot resume %s coroutine", statnames[status]); return -1; /* error flag */ } lua_xmove(L, co, narg); lua_setlevel(L, co); status = lua_resume(co, narg); if (status == 0 || status == LUA_YIELD) { int nres = lua_gettop(co); if (!lua_checkstack(L, nres + 1)) luaL_error(L, "too many results to resume"); lua_xmove(co, L, nres); /* move yielded values */ return nres; } else { lua_xmove(co, L, 1); /* move error message */ return -1; /* error flag */ } } static int luaB_coresume (lua_State *L) { lua_State *co = lua_tothread(L, 1); int r; luaL_argcheck(L, co, 1, "coroutine expected"); r = auxresume(L, co, lua_gettop(L) - 1); if (r < 0) { lua_pushboolean(L, 0); lua_insert(L, -2); return 2; /* return false + error message */ } else { lua_pushboolean(L, 1); lua_insert(L, -(r + 1)); return r + 1; /* return true + `resume' returns */ } } static int luaB_auxwrap (lua_State *L) { lua_State *co = lua_tothread(L, lua_upvalueindex(1)); int r = auxresume(L, co, lua_gettop(L)); if (r < 0) { if (lua_isstring(L, -1)) { /* error object is a string? */ luaL_where(L, 1); /* add extra info */ lua_insert(L, -2); lua_concat(L, 2); } lua_error(L); /* propagate error */ } return r; } static int luaB_cocreate (lua_State *L) { lua_State *NL = lua_newthread(L); luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1), 1, "Lua function expected"); lua_pushvalue(L, 1); /* move function to top */ lua_xmove(L, NL, 1); /* move function from L to NL */ return 1; } static int luaB_cowrap (lua_State *L) { luaB_cocreate(L); lua_pushcclosure(L, luaB_auxwrap, 1); return 1; } static int luaB_yield (lua_State *L) { return lua_yield(L, lua_gettop(L)); } static int luaB_corunning (lua_State *L) { if (lua_pushthread(L)) lua_pushnil(L); /* main thread is not a coroutine */ return 1; } static const luaL_Reg co_funcs[] = { {"create", luaB_cocreate}, {"resume", luaB_coresume}, {"running", luaB_corunning}, {"status", luaB_costatus}, {"wrap", luaB_cowrap}, {"yield", luaB_yield}, {NULL, NULL} }; /* }====================================================== */ static void auxopen (lua_State *L, const char *name, lua_CFunction f, lua_CFunction u) { lua_pushcfunction(L, u); lua_pushcclosure(L, f, 1); lua_setfield(L, -2, name); } static void base_open (lua_State *L) { /* set global _G */ lua_pushvalue(L, LUA_GLOBALSINDEX); lua_setglobal(L, "_G"); /* open lib into global table */ luaL_register(L, "_G", base_funcs); lua_pushliteral(L, LUA_VERSION); lua_setglobal(L, "_VERSION"); /* set global _VERSION */ /* `ipairs' and `pairs' need auxliliary functions as upvalues */ auxopen(L, "ipairs", luaB_ipairs, ipairsaux); auxopen(L, "pairs", luaB_pairs, luaB_next); /* `newproxy' needs a weaktable as upvalue */ lua_createtable(L, 0, 1); /* new table `w' */ lua_pushvalue(L, -1); /* `w' will be its own metatable */ lua_setmetatable(L, -2); lua_pushliteral(L, "kv"); lua_setfield(L, -2, "__mode"); /* metatable(w).__mode = "kv" */ lua_pushcclosure(L, luaB_newproxy, 1); lua_setglobal(L, "newproxy"); /* set global `newproxy' */ } LUALIB_API int luaopen_base (lua_State *L) { base_open(L); luaL_register(L, LUA_COLIBNAME, co_funcs); return 2; } 56' href='#n56'>56 57 58 59 60 61 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/*******************************************************************************
 * Copyright (c) 2000, 2010 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.browser;

import java.io.UnsupportedEncodingException;
import java.util.Enumeration;

import org.eclipse.swt.*;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.carbon.*;
import org.eclipse.swt.internal.cocoa.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

class WebKit extends WebBrowser {
	
	/* Objective-C WebView delegate */
	int delegate;
	
	/* Carbon HIView handle */
	int webViewHandle, webView;
	int windowBoundsHandler;
	int preferences;
	
	boolean loadingText, hasNewFocusElement, untrustedText;
	String lastHoveredLinkURL, lastNavigateURL;
	String html;
	int identifier;
	int resourceCount;
	int lastMouseMoveX, lastMouseMoveY;
	String url = ""; //$NON-NLS-1$
	Point location;
	Point size;
	boolean statusBar = true, toolBar = true, ignoreDispose;
	//TEMPORARY CODE
//	boolean doit;

	static boolean Initialized;
	static Callback Callback3, Callback7;

	static final int MIN_SIZE = 16;
	static final int MAX_PROGRESS = 100;
	static final String WebElementLinkURLKey = "WebElementLinkURL"; //$NON-NLS-1$
	static final String AGENT_STRING = "Safari/412.0"; /* Safari version on OSX 10.4 initial release */ //$NON-NLS-1$
	static final String URI_FILEROOT = "file:///"; //$NON-NLS-1$
	static final String PROTOCOL_FILE = "file://"; //$NON-NLS-1$
	static final String PROTOCOL_HTTP = "http://"; //$NON-NLS-1$
	static final String URI_APPLEWEBDATA = "applewebdata://"; //$NON-NLS-1$
	static final String ABOUT_BLANK = "about:blank"; //$NON-NLS-1$
	static final String HEADER_SETCOOKIE = "Set-Cookie"; //$NON-NLS-1$
	static final String POST = "POST"; //$NON-NLS-1$
	static final String USER_AGENT = "user-agent"; //$NON-NLS-1$
	static final String ADD_WIDGET_KEY = "org.eclipse.swt.internal.addWidget"; //$NON-NLS-1$
	static final String BROWSER_WINDOW = "org.eclipse.swt.browser.Browser.Window"; //$NON-NLS-1$
	static final String WEBKIT_EVENTS_FIX_KEY = "org.eclipse.swt.internal.webKitEventsFix"; //$NON-NLS-1$

	/* event strings */
	static final String DOMEVENT_KEYUP = "keyup"; //$NON-NLS-1$
	static final String DOMEVENT_KEYDOWN = "keydown"; //$NON-NLS-1$
	static final String DOMEVENT_MOUSEDOWN = "mousedown"; //$NON-NLS-1$
	static final String DOMEVENT_MOUSEUP = "mouseup"; //$NON-NLS-1$
	static final String DOMEVENT_MOUSEMOVE = "mousemove"; //$NON-NLS-1$
	static final String DOMEVENT_MOUSEWHEEL = "mousewheel"; //$NON-NLS-1$
	static final String DOMEVENT_FOCUSIN = "DOMFocusIn"; //$NON-NLS-1$
	static final String DOMEVENT_FOCUSOUT = "DOMFocusOut"; //$NON-NLS-1$

	static {
		Cocoa.WebInitForCarbon();

		NativeClearSessions = new Runnable() {
			public void run() {
				int storage = Cocoa.objc_msgSend (Cocoa.C_NSHTTPCookieStorage, Cocoa.S_sharedHTTPCookieStorage);
				int cookies = Cocoa.objc_msgSend (storage, Cocoa.S_cookies);
				int count = Cocoa.objc_msgSend (cookies, Cocoa.S_count);
				for (int i = 0; i < count; i++) {
					int cookie = Cocoa.objc_msgSend (cookies, Cocoa.S_objectAtIndex, i);
					boolean isSession = Cocoa.objc_msgSend (cookie, Cocoa.S_isSessionOnly) != 0;
					if (isSession) {
						Cocoa.objc_msgSend (storage, Cocoa.S_deleteCookie, cookie);
					}
				}
			}
		};

		NativeGetCookie = new Runnable () {
			public void run () {
				int storage = Cocoa.objc_msgSend (Cocoa.C_NSHTTPCookieStorage, Cocoa.S_sharedHTTPCookieStorage);
				int urlString = createNSString (CookieUrl);
				int url = Cocoa.objc_msgSend (Cocoa.C_NSURL, Cocoa.S_URLWithString, urlString);
				OS.CFRelease (urlString);
				int cookies = Cocoa.objc_msgSend (storage, Cocoa.S_cookiesForURL, url);
				int count = Cocoa.objc_msgSend (cookies, Cocoa.S_count);
				if (count == 0) return;

				int name = createNSString (CookieName);
				for (int i = 0; i < count; i++) {
					int current = Cocoa.objc_msgSend (cookies, Cocoa.S_objectAtIndex, i);
					int currentName = Cocoa.objc_msgSend (current, Cocoa.S_name);
					if (Cocoa.objc_msgSend (currentName, Cocoa.S_compare, name) == Cocoa.NSOrderedSame) {
						int value = Cocoa.objc_msgSend (current, Cocoa.S_value);
						int length = OS.CFStringGetLength (value);
						char[] buffer = new char[length];
						CFRange range = new CFRange ();
						range.length = length;
						OS.CFStringGetCharacters (value, range, buffer);
						CookieValue = new String (buffer);
						OS.CFRelease (name);
						return;
					}
				}
				OS.CFRelease (name);
			}
		};

		NativeSetCookie = new Runnable () {
			public void run () {
				int urlString = createNSString(CookieUrl);
				int url = Cocoa.objc_msgSend (Cocoa.C_NSURL, Cocoa.S_URLWithString, urlString);
				OS.CFRelease (urlString);

				int value = createNSString (CookieValue);
				int key = createNSString (HEADER_SETCOOKIE);
				int headers = Cocoa.objc_msgSend (Cocoa.C_NSMutableDictionary, Cocoa.S_dictionaryWithCapacity, 1);
				Cocoa.objc_msgSend (headers, Cocoa.S_setValue, value, key);
				OS.CFRelease (key);
				OS.CFRelease (value);

				int cookies = Cocoa.objc_msgSend (Cocoa.C_NSHTTPCookie, Cocoa.S_cookiesWithResponseHeaderFields, headers, url);
				if (Cocoa.objc_msgSend (cookies, Cocoa.S_count) == 0) return;
				int cookie = Cocoa.objc_msgSend (cookies, Cocoa.S_objectAtIndex, 0);
				int storage = Cocoa.objc_msgSend (Cocoa.C_NSHTTPCookieStorage, Cocoa.S_sharedHTTPCookieStorage);
				Cocoa.objc_msgSend (storage, Cocoa.S_setCookie, cookie);
				CookieResult = true;
			}
		};

		if (NativePendingCookies != null) {
			SetPendingCookies (NativePendingCookies);
		}
		NativePendingCookies = null;
	}

public void create (Composite parent, int style) {
	/*
	* Note.  Loading the webkit bundle on Jaguar causes a crash.
	* The workaround is to detect any OS prior to 10.30 and fail
	* without crashing.
	*/
	if (OS.VERSION < 0x1030) {
		browser.dispose();
		SWT.error(SWT.ERROR_NO_HANDLES);
	}
	
	/*
	* Bug in WebKit on OSX 10.5 (Leopard) only.  VoiceOver no longer follows focus when
	* HIWebViewCreate is used to create a WebView.  The VoiceOver cursor (activated by
	* Control+Alt+arrows) continues to work, but keyboard focus is not tracked.  The fix
	* is to create the WebView with HICocoaViewCreate (api introduced in OSX 10.5) when
	* running on OSX 10.5.
	*/
	int outControl[] = new int[1];
	if (OS.VERSION >= 0x1050) {
		webView = Cocoa.objc_msgSend(Cocoa.objc_msgSend(Cocoa.C_WebView, Cocoa.S_alloc), Cocoa.S_initWithFrame_frameName_groupName, new NSRect(), 0, 0);
		if (webView != 0) {
			Cocoa.HICocoaViewCreate(webView, 0, outControl);
			webViewHandle = outControl[0];
			Cocoa.objc_msgSend(webView, Cocoa.S_release);
		}
	} else {
		Cocoa.HIWebViewCreate(outControl);
		webViewHandle = outControl[0];
		if (webViewHandle != 0) {
			webView = Cocoa.HIWebViewGetWebView(webViewHandle);
		}
	}
	if (webViewHandle == 0) {
		browser.dispose();
		SWT.error(SWT.ERROR_NO_HANDLES);
	}

	Display display = browser.getDisplay();
	display.setData(ADD_WIDGET_KEY, new Object[] {new Integer(webViewHandle), browser});

	/*
	* WebKit's DOM listener api became functional in OSX 10.4.  If OSX 10.4 or 
	* later is detected then override the default event mechanism to not send key
	* events and some mouse events so that the browser can send them by listening
	* to the DOM instead.
	*/
	if (!(OS.VERSION < 0x1040)) {
		browser.setData(WEBKIT_EVENTS_FIX_KEY);
	}

	/*
	* Bug in WebKit.  For some reason, every application must contain
	* a visible window that has never had a WebView or mouse move events
	* are not delivered.  This seems to happen after a browser has been
	* either hidden or disposed in any window.  The fix is to create a
	* single transparent overlay window that is disposed when the display
	* is disposed.
	*/
	if (display.getData(BROWSER_WINDOW) == null) {
		Rect bounds = new Rect ();
		OS.SetRect (bounds, (short) 0, (short) 0, (short) 1, (short) 1);
		final int[] outWindow = new int[1];
		OS.CreateNewWindow(OS.kOverlayWindowClass, 0, bounds, outWindow);
		OS.ShowWindow(outWindow[0]);
		OS.HIObjectSetAccessibilityIgnored (outWindow[0], true);
		display.disposeExec(new Runnable() {
			public void run() {
				if (outWindow[0] != 0) {
					OS.DisposeWindow(outWindow[0]);
				}
				outWindow[0] = 0;
			}
		});
		display.setData(BROWSER_WINDOW, outWindow);
	}
	
	/*
	* Bug in WebKit. The WebView does not draw properly if it is embedded as
	* sub view of the browser handle.  The fix is to add the web view to the
	* window root control and resize it on top of the browser handle.
	* 
	* Note that when the browser is reparented, the web view has to
	* be reparented by hand by hooking kEventControlOwningWindowChanged.
	*/
	int window = OS.GetControlOwner(browser.handle);
	int[] contentView = new int[1];
	OS.HIViewFindByID(OS.HIViewGetRoot(window), OS.kHIViewWindowContentID(), contentView);
	OS.HIViewAddSubview(contentView[0], webViewHandle);
	OS.HIViewChangeFeatures(webViewHandle, OS.kHIViewFeatureIsOpaque, 0);

	/*
	* Bug in WebKit. The WebView does not receive mouse and key events when it is added
	* to a visible top window.  It is assumed that WebKit hooks its own event listener
	* when the top window emits the kEventWindowShown event. The workaround is to send a
	* fake kEventWindowShown event to the top window after the WebView has been added
	* to the HIView (after the top window is visible) to give WebKit a chance to hook
	* events.
	*/
	OS.HIViewSetVisible(webViewHandle, true);	
	if (browser.getShell().isVisible()) {
		int[] showEvent = new int[1];
		OS.CreateEvent(0, OS.kEventClassWindow, OS.kEventWindowShown, 0.0, OS.kEventAttributeUserEvent, showEvent);
		OS.SetEventParameter(showEvent[0], OS.kEventParamDirectObject, OS.typeWindowRef, 4, new int[] {OS.GetControlOwner(browser.handle)});
		OS.SendEventToEventTarget(showEvent[0], OS.GetWindowEventTarget(window));
		if (showEvent[0] != 0) OS.ReleaseEvent(showEvent[0]);
	}

	/*
	* This code is intentionally commented. Setting a group name is the right thing
	* to do in order to avoid multiple open window requests. For some reason, WebKit
	* crashes when requested to reopen the same window if that window was previously
	* closed. This may be because that window was not correctly closed. 
	*/	
//	String groupName = "MyDocument"; //$NON-NLS-1$
//	int length = groupName.length();
//	char[] buffer = new char[length];
//	groupName.getChars(0, length, buffer, 0);
//	int groupNameString = OS.CFStringCreateWithCharacters(0, buffer, length);
//	// [webView setGroupName:@"MyDocument"];
//	WebKit.objc_msgSend(webView, WebKit.S_setGroupName, groupNameString);
//	OS.CFRelease(groupNameString);
	
	final int notificationCenter = Cocoa.objc_msgSend(Cocoa.C_NSNotificationCenter, Cocoa.S_defaultCenter);

	Listener listener = new Listener() {
		public void handleEvent(Event e) {
			switch (e.type) {
				case SWT.Dispose: {
					/* make this handler run after other dispose listeners */
					if (ignoreDispose) {
						ignoreDispose = false;
						break;
					}
					ignoreDispose = true;
					browser.notifyListeners (e.type, e);
					e.type = SWT.NONE;

					/* invoke onbeforeunload handlers */
					if (!browser.isClosing && !browser.isDisposed()) {
						close (false);
					}

					OS.RemoveEventHandler(windowBoundsHandler);
					windowBoundsHandler = 0;

					e.display.setData(ADD_WIDGET_KEY, new Object[] {new Integer(webViewHandle), null});

					Cocoa.objc_msgSend(webView, Cocoa.S_setFrameLoadDelegate, 0);
					Cocoa.objc_msgSend(webView, Cocoa.S_setResourceLoadDelegate, 0);
					Cocoa.objc_msgSend(webView, Cocoa.S_setUIDelegate, 0);
					Cocoa.objc_msgSend(webView, Cocoa.S_setPolicyDelegate, 0);
					Cocoa.objc_msgSend(webView, Cocoa.S_setDownloadDelegate, 0);
					Cocoa.objc_msgSend(notificationCenter, Cocoa.S_removeObserver, delegate);
					
					Cocoa.objc_msgSend(delegate, Cocoa.S_release);
					OS.DisposeControl(webViewHandle);
					webView = webViewHandle = 0;
					html = null;
					lastHoveredLinkURL = lastNavigateURL = null;

					Enumeration elements = functions.elements ();
					while (elements.hasMoreElements ()) {
						((BrowserFunction)elements.nextElement ()).dispose (false);
					}
					functions = null;

					if (preferences != 0) {
						Cocoa.objc_msgSend (preferences, Cocoa.S_release);
					}
					preferences = 0;
					break;
				}
				case SWT.FocusIn: {
					hasNewFocusElement = true;
					OS.SetKeyboardFocus(OS.GetControlOwner(browser.handle), webViewHandle, (short)-1);
					break;
				}
			}
		}
	};
	browser.addListener(SWT.Dispose, listener);
	browser.addListener(SWT.FocusIn, listener);
	browser.addListener(SWT.KeyDown, listener); /* needed to make browser traversable */
	
	if (Callback3 == null) Callback3 = new Callback(this.getClass(), "eventProc3", 3); //$NON-NLS-1$
	int callback3Address = Callback3.getAddress();
	if (callback3Address == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS);

	int[] mask = new int[] {
		OS.kEventClassKeyboard, OS.kEventRawKeyDown,
		OS.kEventClassControl, OS.kEventControlDraw,
		OS.kEventClassControl, OS.kEventControlGetClickActivation,
		OS.kEventClassControl, OS.kEventControlSetCursor,
		OS.kEventClassTextInput, OS.kEventTextInputUnicodeForKeyEvent,
	};
	OS.InstallEventHandler(OS.GetControlEventTarget(webViewHandle), callback3Address, mask.length / 2, mask, webViewHandle, null);
	int[] mask1 = new int[] {
		OS.kEventClassControl, OS.kEventControlBoundsChanged,
		OS.kEventClassControl, OS.kEventControlVisibilityChanged,
		OS.kEventClassControl, OS.kEventControlOwningWindowChanged,
	};
	OS.InstallEventHandler(OS.GetControlEventTarget(browser.handle), callback3Address, mask1.length / 2, mask1, browser.handle, null);
	int[] mask2 = new int[] {
		OS.kEventClassWindow, OS.kEventWindowBoundsChanged,
	};
	int[] outRef = new int[1];
	OS.InstallEventHandler(OS.GetWindowEventTarget(window), callback3Address, mask2.length / 2, mask2, browser.handle, outRef);
	windowBoundsHandler = outRef[0];

	if (Callback7 == null) Callback7 = new Callback(this.getClass(), "eventProc7", 7); //$NON-NLS-1$
	int callback7Address = Callback7.getAddress();
	if (callback7Address == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS);
	
	// delegate = [[WebResourceLoadDelegate alloc] init eventProc];
	delegate = Cocoa.objc_msgSend(Cocoa.C_WebKitDelegate, Cocoa.S_alloc);
	delegate = Cocoa.objc_msgSend(delegate, Cocoa.S_initWithProc, callback7Address, webViewHandle);

	// [webView setFrameLoadDelegate:delegate];
	Cocoa.objc_msgSend(webView, Cocoa.S_setFrameLoadDelegate, delegate);
		
	// [webView setResourceLoadDelegate:delegate];
	Cocoa.objc_msgSend(webView, Cocoa.S_setResourceLoadDelegate, delegate);

	// [webView setUIDelegate:delegate];
	Cocoa.objc_msgSend(webView, Cocoa.S_setUIDelegate, delegate);
	
	/* register delegate for all notifications sent out from webview */
	Cocoa.objc_msgSend(notificationCenter, Cocoa.S_addObserver_selector_name_object, delegate, Cocoa.S_handleNotification, 0, webView);
	
	// [webView setPolicyDelegate:delegate];
	Cocoa.objc_msgSend(webView, Cocoa.S_setPolicyDelegate, delegate);

	// [webView setDownloadDelegate:delegate];
	Cocoa.objc_msgSend(webView, Cocoa.S_setDownloadDelegate, delegate);

	// [webView setApplicationNameForUserAgent:applicationName];
	int sHandle = createNSString(AGENT_STRING);
	Cocoa.objc_msgSend(webView, Cocoa.S_setApplicationNameForUserAgent, sHandle);
	OS.CFRelease(sHandle);

	if (OS.VERSION < 0x1050 && display.getActiveShell() == browser.getShell()) {
		Cocoa.objc_msgSend(Cocoa.objc_msgSend(webView, Cocoa.S_window), Cocoa.S_makeKeyWindow);
	}

	if (!Initialized) {
		Initialized = true;
		/* disable applets */
		int preferences = Cocoa.objc_msgSend(Cocoa.C_WebPreferences, Cocoa.S_standardPreferences);
		Cocoa.objc_msgSend(preferences, Cocoa.S_setJavaEnabled, 0);
	}
}

static int eventProc3(int nextHandler, int theEvent, int userData) {
	Widget widget = Display.getCurrent().findWidget(userData);
	if (widget instanceof Browser) {
		return ((WebKit)((Browser)widget).webBrowser).handleCallback(nextHandler, theEvent);
	}
	return OS.eventNotHandledErr;
}

static int eventProc7(int webview, int userData, int selector, int arg0, int arg1, int arg2, int arg3) {
	Widget widget = Display.getCurrent().findWidget(userData);
	if (widget instanceof Browser) {
		return ((WebKit)((Browser)widget).webBrowser).handleCallback(selector, arg0, arg1, arg2, arg3);
	}
	return 0;
}

static int createNSString(String string) {
	int length = string.length ();
	char[] buffer = new char[length];
	string.getChars (0, length, buffer, 0);
	return OS.CFStringCreateWithCharacters (0, buffer, length);
}

static String getString (int ptr) {
	int length = OS.CFStringGetLength (ptr);
	char[] buffer = new char[length];
	CFRange range = new CFRange ();
	range.length = length;
	OS.CFStringGetCharacters (ptr, range, buffer);
	return new String (buffer);
}

public boolean back() {
	html = null;
	return Cocoa.objc_msgSend(webView, Cocoa.S_goBack) != 0;
}

public boolean close () {
	return close (true);
}

boolean close (boolean showPrompters) {
	if (!jsEnabled) return true;

	String functionName = EXECUTE_ID + "CLOSE"; // $NON-NLS-1$
	StringBuffer buffer = new StringBuffer ("function "); // $NON-NLS-1$
	buffer.append (functionName);
	buffer.append ("(win) {\n"); // $NON-NLS-1$
	buffer.append ("var fn = win.onbeforeunload; if (fn != null) {try {var str = fn(); "); // $NON-NLS-1$
	if (showPrompters) {
		buffer.append ("if (str != null) { "); // $NON-NLS-1$
		buffer.append ("var result = window.external.callRunBeforeUnloadConfirmPanelWithMessage(str);"); // $NON-NLS-1$
		buffer.append ("if (!result) return false;}"); // $NON-NLS-1$
	}	
	buffer.append ("} catch (e) {}}"); // $NON-NLS-1$
	buffer.append ("try {for (var i = 0; i < win.frames.length; i++) {var result = "); // $NON-NLS-1$
	buffer.append (functionName);
	buffer.append ("(win.frames[i]); if (!result) return false;}} catch (e) {} return true;"); // $NON-NLS-1$
	buffer.append ("\n};"); // $NON-NLS-1$
	execute (buffer.toString ());

	Boolean result = (Boolean)evaluate ("return " + functionName +"(window);"); // $NON-NLS-1$ // $NON-NLS-2$
	if (result == null) return false;
	return result.booleanValue ();
}

public boolean execute(String script) {
	int frame = Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame);
	int context = Cocoa.objc_msgSend(frame, Cocoa.S_globalContext);

	byte[] bytes = null;
	try {
		bytes = (script + '\0').getBytes("UTF-8"); //$NON-NLS-1$
	} catch (UnsupportedEncodingException e) {
		bytes = (script + '\0').getBytes();
	}
	int scriptString = OS.JSStringCreateWithUTF8CString(bytes);

	try {
		bytes = (getUrl() + '\0').getBytes("UTF-8"); //$NON-NLS-1$
	} catch (UnsupportedEncodingException e) {
		bytes = (getUrl() + '\0').getBytes();
	}
	int urlString = OS.JSStringCreateWithUTF8CString(bytes);

	int result = OS.JSEvaluateScript(context, scriptString, 0, urlString, 0, null);
	OS.JSStringRelease(urlString);
	OS.JSStringRelease(scriptString);
	return result != 0;
}

public boolean forward() {
	html = null;
	return Cocoa.objc_msgSend(webView, Cocoa.S_goForward) != 0;
}

public String getBrowserType () {
	return "webkit"; //$NON-NLS-1$
}

public String getText() {
	int mainFrame = Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame);
	int dataSource = Cocoa.objc_msgSend(mainFrame, Cocoa.S_dataSource);
	if (dataSource == 0) return "";	//$NON-NLS-1$
	int representation = Cocoa.objc_msgSend(dataSource, Cocoa.S_representation);
	if (representation == 0) return "";	//$NON-NLS-1$
	int source = Cocoa.objc_msgSend(representation, Cocoa.S_documentSource);
	if (source == 0) return "";	//$NON-NLS-1$
	int length = OS.CFStringGetLength(source);
	char[] buffer = new char[length];
	CFRange range = new CFRange();
	range.length = length;
	OS.CFStringGetCharacters(source, range, buffer);
	return new String(buffer);
}

public String getUrl() {
	/* WebKit auto-navigates to about:blank at startup */
	if (url.length() == 0) return ABOUT_BLANK;

	return url;
}

int handleCallback(int nextHandler, int theEvent) {
	int eventKind = OS.GetEventKind(theEvent);
	switch (OS.GetEventClass(theEvent)) {
		case OS.kEventClassControl:
			switch (eventKind) {
				case OS.kEventControlGetClickActivation: {
					OS.SetEventParameter (theEvent, OS.kEventParamClickActivation, OS.typeClickActivationResult, 4, new int [] {OS.kActivateAndHandleClick});
					return OS.noErr;
				}
				case OS.kEventControlSetCursor: {
					return OS.noErr;
				}
				case OS.kEventControlDraw: {
					/*
					 * Bug on WebKit. The web view cannot be obscured by other views above it.
					 * This problem is specified in the apple documentation for HiWebViewCreate.
					 * The workaround is to don't draw the web view when it is not visible.
					 */
					if (!browser.isVisible ()) return OS.noErr;
					break;
				}
				case OS.kEventControlOwningWindowChanged: {
					/* Reparent the web view handler */
					int window = OS.GetControlOwner(browser.handle);
					int[] contentView = new int[1];
					OS.HIViewFindByID(OS.HIViewGetRoot(window), OS.kHIViewWindowContentID(), contentView);
					OS.HIViewAddSubview(contentView[0], webViewHandle);
					
					/* Reset the kEventWindowBoundsChanged handler */
					OS.RemoveEventHandler(windowBoundsHandler);
					int[] mask2 = new int[] {
						OS.kEventClassWindow, OS.kEventWindowBoundsChanged,
					};
					int[] outRef = new int[1];
					OS.InstallEventHandler(OS.GetWindowEventTarget(window), Callback3.getAddress(), mask2.length / 2, mask2, browser.handle, outRef);
					windowBoundsHandler = outRef[0];
					break;
				}
				case OS.kEventControlBoundsChanged:
				case OS.kEventControlVisibilityChanged: {
					/*
					 * Bug on WebKit. The web view cannot be obscured by other views above it.
					 * This problem is specified in the apple documentation for HiWebViewCreate.
					 * The workaround is to hook kEventControlVisibilityChanged on the browser
					 * and move the browser out of the screen when hidden and restore its bounds
					 * when shown.
					 */
					CGRect bounds = new CGRect();
					if (!browser.isVisible()) {
						bounds.x = bounds.y = -MIN_SIZE;
						bounds.width = bounds.height = MIN_SIZE;
						OS.HIViewSetFrame(webViewHandle, bounds);
					} else {
						OS.HIViewGetBounds(browser.handle, bounds);
						int[] contentView = new int[1];
						OS.HIViewFindByID(OS.HIViewGetRoot(OS.GetControlOwner(browser.handle)), OS.kHIViewWindowContentID(), contentView);
						OS.HIViewConvertRect(bounds, browser.handle, contentView[0]);
						/* 
						* Bug in WebKit.  For some reason, the web view will display incorrectly or
						* blank depending on its contents, if its size is set to a value smaller than
						* MIN_SIZE. It will not display properly even after the size is made larger.
						* The fix is to avoid setting sizes smaller than MIN_SIZE. 
						*/
						if (bounds.width <= MIN_SIZE) bounds.width = MIN_SIZE;
						if (bounds.height <= MIN_SIZE) bounds.height = MIN_SIZE;
						OS.HIViewSetFrame(webViewHandle, bounds);
					}
					break;
				}
			}
		case OS.kEventClassWindow:
			switch (eventKind) {
				case OS.kEventWindowBoundsChanged:
					/*
					 * Bug on WebKit. Resizing the height of a Shell containing a Browser at
					 * a fixed location causes the Browser to redraw at a wrong location.
					 * The web view is a HIView container that internally hosts
					 * a Cocoa NSView that uses a coordinates system with the origin at the
					 * bottom left corner of a window instead of the coordinates system used
					 * in Carbon that starts at the top left corner. The workaround is to
					 * reposition the web view every time the Shell of the Browser is resized.
					 * 
					 * Note the size should not be updated if the browser is hidden.
					 */
					if (browser.isVisible()) {
						CGRect oldBounds = new CGRect();
						OS.GetEventParameter (theEvent, OS.kEventParamOriginalBounds, OS.typeHIRect, null, CGRect.sizeof, null, oldBounds);
						CGRect bounds = new CGRect();
						OS.GetEventParameter (theEvent, OS.kEventParamCurrentBounds, OS.typeHIRect, null, CGRect.sizeof, null, bounds);
						if (oldBounds.height == bounds.height) break;
						OS.HIViewGetBounds(browser.handle, bounds);
						int[] contentView = new int[1];
						OS.HIViewFindByID(OS.HIViewGetRoot(OS.GetControlOwner(browser.handle)), OS.kHIViewWindowContentID(), contentView);
						OS.HIViewConvertRect(bounds, browser.handle, contentView[0]);
						/* 
						* Bug in WebKit.  For some reason, the web view will display incorrectly or
						* blank depending on its contents, if its size is set to a value smaller than
						* MIN_SIZE. It will not display properly even after the size is made larger.
						* The fix is to avoid setting sizes smaller than MIN_SIZE. 
						*/
						if (bounds.width <= MIN_SIZE) bounds.width = MIN_SIZE;
						if (bounds.height <= MIN_SIZE) bounds.height = MIN_SIZE;
						bounds.x++;
						/* Note that the bounds needs to change */
						OS.HIViewSetFrame(webViewHandle, bounds);
						bounds.x--;
						OS.HIViewSetFrame(webViewHandle, bounds);
					}
			}
		case OS.kEventClassKeyboard:
			switch (eventKind) {
				case OS.kEventRawKeyDown: {
					/*
					* Bug in WebKit. The WebView blocks the propagation of certain Carbon events
					* such as kEventRawKeyDown. On the Mac, Carbon events propagate from the
					* Focus Target Handler to the Control Target Handler, Window Target and finally
					* the Application Target Handler. It is assumed that WebView hooks its events
					* on the Window Target and does not pass kEventRawKeyDown to the next handler.
					* Since kEventRawKeyDown events never make it to the Application Target Handler,
					* the Application Target Handler never gets to emit kEventTextInputUnicodeForKeyEvent
					* used by SWT to send a SWT.KeyDown event.
					* The workaround is to hook kEventRawKeyDown on the Control Target Handler which gets
					* called before the WebView hook on the Window Target Handler. Then, forward this event
					* directly to the Application Target Handler. Note that if in certain conditions WebKit
					* does not block the kEventRawKeyDown, then multiple kEventTextInputUnicodeForKeyEvent
					* events might be generated as a result of this workaround.
					*/
					//TEMPORARY CODE
//					doit = false;
//					OS.SendEventToEventTarget(theEvent, OS.GetApplicationEventTarget());
//					if (!doit) return OS.noErr;

					int[] length = new int[1];
					int status = OS.GetEventParameter (theEvent, OS.kEventParamKeyUnicodes, OS.typeUnicodeText, null, 4, length, (char[])null);
					if (status == OS.noErr && length[0] != 0) {
						int[] modifiers = new int[1];
						OS.GetEventParameter (theEvent, OS.kEventParamKeyModifiers, OS.typeUInt32, null, 4, null, modifiers);
						char[] chars = new char[1];
						OS.GetEventParameter (theEvent, OS.kEventParamKeyUnicodes, OS.typeUnicodeText, null, 2, null, chars);
						if ((modifiers[0] & OS.cmdKey) != 0) {
							switch (chars[0]) {
								case 'v': {
									Cocoa.objc_msgSend (webView, Cocoa.S_paste);
									return OS.noErr;
								}
								case 'c': {
									Cocoa.objc_msgSend (webView, Cocoa.S_copy);
									return OS.noErr;
								}
								case 'x': {
									Cocoa.objc_msgSend (webView, Cocoa.S_cut);
									return OS.noErr;
								}
							}
						}
					}
					/*
					* Bug in Carbon.  OSX crashes if a HICocoaView is disposed during a key event,
					* presumably as a result of attempting to use it after its refcount has reached
					* 0.  The workaround is to temporarily add an extra ref to the view and its
					* ancestor while the DOM listener is handling the event, in case the
					* Browser gets disposed in a callback.
					*/
					int handle = webViewHandle, root = OS.HIViewGetSuperview (webViewHandle);
					OS.CFRetain (handle);
					OS.CFRetain (root);
					int result = OS.CallNextEventHandler (nextHandler, theEvent);
					OS.CFRelease (handle);
					OS.CFRelease (root);
					return result;
				}
			}
		case OS.kEventClassTextInput:
			switch (eventKind) {
				case OS.kEventTextInputUnicodeForKeyEvent: {
					/*
					* Note.  This event is received from the Window Target therefore after it was received
					* by the Focus Target. The SWT.KeyDown event is sent by SWT on the Focus Target. If it
					* is received here, then the SWT.KeyDown doit flag must have been left to the value
					* true.  For package visibility reasons we cannot access the doit flag directly.
					* 
					* Sequence of events when the user presses a key down
					* 
					* .Control Target - kEventRawKeyDown
					* 	.forward to ApplicationEventTarget
					* 		.Focus Target kEventTextInputUnicodeForKeyEvent - SWT emits SWT.KeyDown - 
					* 			blocks further propagation if doit false. Browser does not know directly about
					* 			the doit flag value.
					* 			.Window Target kEventTextInputUnicodeForKeyEvent - if received, Browser knows 
					* 			SWT.KeyDown is not blocked and event should be sent to WebKit
					*  Return from Control Target - kEventRawKeyDown: let the event go to WebKit if doit true 
					*  (eventNotHandledErr) or stop it (noErr).
					*/
					//TEMPORARY CODE
//					doit = true;
					break;
				}
			}
	}
	return OS.eventNotHandledErr;
}

/* Here we dispatch all WebView upcalls. */
int handleCallback(int selector, int arg0, int arg1, int arg2, int arg3) {
	int ret = 0;
	// for meaning of selector see WebKitDelegate methods in webkit.c
	switch (selector) {
		case 1: didFailProvisionalLoadWithError(arg0, arg1); break;
		case 2: didFinishLoadForFrame(arg0); break;
		case 3: didReceiveTitle(arg0, arg1); break;
		case 4: didStartProvisionalLoadForFrame(arg0); break;
		case 5: didFinishLoadingFromDataSource(arg0, arg1); break;
		case 6: didFailLoadingWithError(arg0, arg1, arg2); break;
		case 7: ret = identifierForInitialRequest(arg0, arg1); break;
		case 8: ret = willSendRequest(arg0, arg1, arg2, arg3); break;
		case 9: handleNotification(arg0); break;
		case 10: didCommitLoadForFrame(arg0); break;
		case 11: ret = createWebViewWithRequest(arg0); break;
		case 12: webViewShow(arg0); break;
		case 13: setFrame(arg0); break;
		case 14: webViewClose(); break;
		case 15: ret = contextMenuItemsForElement(arg0, arg1); break;
		case 16: setStatusBarVisible(arg0); break;
		case 17: setResizable(arg0); break;
		case 18: setToolbarsVisible(arg0); break;
		case 19: decidePolicyForMIMEType(arg0, arg1, arg2, arg3); break;
		case 20: decidePolicyForNavigationAction(arg0, arg1, arg2, arg3); break;
		case 21: decidePolicyForNewWindowAction(arg0, arg1, arg2, arg3); break;
		case 22: unableToImplementPolicyWithError(arg0, arg1); break;
		case 23: setStatusText(arg0); break;
		case 24: webViewFocus(); break;
		case 25: webViewUnfocus(); break;
		case 26: runJavaScriptAlertPanelWithMessage(arg0); break;
		case 27: ret = runJavaScriptConfirmPanelWithMessage(arg0); break;
		case 28: runOpenPanelForFileButtonWithResultListener(arg0); break;
		case 29: decideDestinationWithSuggestedFilename(arg0, arg1); break;
		case 30: mouseDidMoveOverElement(arg0, arg1); break;
		case 31: didChangeLocationWithinPageForFrame(arg0); break;
		case 32: handleEvent(arg0); break;
		case 33: windowScriptObjectAvailable(arg0); break;
		case 34: ret = callJava(arg0, arg1, arg2); break;
		case 35: didReceiveAuthenticationChallengefromDataSource(arg0, arg1, arg2); break;
		case 36: ret = runBeforeUnloadConfirmPanelWithMessage(arg0, arg1); break;
		case 37: ret = callRunBeforeUnloadConfirmPanelWithMessage(arg0, arg1); break;
		case 38: createPanelDidEnd(arg0, arg1, arg2); break;
	}
	return ret;
}

public boolean isBackEnabled() {
	return Cocoa.objc_msgSend(webView, Cocoa.S_canGoBack) != 0;
}

public boolean isForwardEnabled() {
	return Cocoa.objc_msgSend(webView, Cocoa.S_canGoForward) != 0;
}

public void refresh() {
	html = null;
	Cocoa.objc_msgSend(webView, Cocoa.S_reload, 0);
}

public boolean setText(String html, boolean trusted) {
	/*
	* If this.html is not null then the about:blank page is already being loaded,
	* so no navigate is required.  Just set the html that is to be shown.
	*/
	boolean blankLoading = this.html != null;
	this.html = html;
	untrustedText = !trusted;
	if (blankLoading) return true;

	int str = createNSString(ABOUT_BLANK);
	int inURL = Cocoa.objc_msgSend(Cocoa.C_NSURL, Cocoa.S_URLWithString, str); /* autoreleased */
	OS.CFRelease (str);
	int request = Cocoa.objc_msgSend(Cocoa.C_NSURLRequest, Cocoa.S_requestWithURL, inURL);
	int mainFrame = Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame);
	Cocoa.objc_msgSend(mainFrame, Cocoa.S_loadRequest, request);
	return true;
}

public boolean setUrl(String url, String postData, String[] headers) {
	html = null;

	if (url.indexOf('/') == 0) {
		url = PROTOCOL_FILE + url;
	} else if (url.indexOf(':') == -1) {
		url = PROTOCOL_HTTP + url;
	}

	int inURL = 0;
	int str = createNSString(url);
	if (str != 0) {
		char[] unescapedChars = new char[] {'%', '#'};
		int unescapedStr = OS.CFStringCreateWithCharacters(0, unescapedChars, unescapedChars.length);
		int escapedStr = OS.CFURLCreateStringByAddingPercentEscapes(OS.kCFAllocatorDefault, str, unescapedStr, 0, OS.kCFStringEncodingUTF8);
		if (escapedStr != 0) {
			inURL = OS.CFURLCreateWithString(OS.kCFAllocatorDefault, escapedStr, 0);
			OS.CFRelease(escapedStr);
		}
		if (unescapedStr != 0) OS.CFRelease(unescapedStr);
		OS.CFRelease(str);
	}
	if (inURL == 0) return false;

	int request = Cocoa.objc_msgSend(Cocoa.C_NSMutableURLRequest, Cocoa.S_requestWithURL, inURL);
	OS.CFRelease(inURL);

	if (postData != null) {
		int post = createNSString(POST);
		Cocoa.objc_msgSend(request, Cocoa.S_setHTTPMethod, post);
		OS.CFRelease (post);
		byte[] bytes = postData.getBytes();
		int data = Cocoa.objc_msgSend(Cocoa.C_NSData, Cocoa.S_dataWithBytes, bytes, bytes.length);
		Cocoa.objc_msgSend(request, Cocoa.S_setHTTPBody, data);
	}
	if (headers != null) {
		for (int i = 0; i < headers.length; i++) {
			String current = headers[i];
			if (current != null) {
				int index = current.indexOf(':');
				if (index != -1) {
					String key = current.substring(0, index).trim();
					String value = current.substring(index + 1).trim();
					if (key.length() > 0 && value.length() > 0) {
						if (key.equalsIgnoreCase(USER_AGENT)) {
							/*
							* Feature of WebKit.  The user-agent header value cannot be overridden
							* here.  The workaround is to temporarily set the value on the WebView
							* and then remove it after the loading of the request has begun.
							*/
							int string = createNSString(value);
							Cocoa.objc_msgSend(webView, Cocoa.S_setCustomUserAgent, string);
							OS.CFRelease (string);
						} else {
							int keyString = createNSString(key);
							int valueString = createNSString(value);
							Cocoa.objc_msgSend(request, Cocoa.S_setValueForHTTPHeaderField, valueString, keyString);
							OS.CFRelease (valueString);
							OS.CFRelease (keyString);
						}
					}
				}
			}
		}
	}

	int mainFrame = Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame);
	Cocoa.objc_msgSend(mainFrame, Cocoa.S_loadRequest, request);
	Cocoa.objc_msgSend(webView, Cocoa.S_setCustomUserAgent, 0);
	return true;
}

public void stop() {
	html = null;
	Cocoa.objc_msgSend(webView, Cocoa.S_stopLoading, 0);
}

boolean translateMnemonics() {
	return false;
}

/* WebFrameLoadDelegate */
void didChangeLocationWithinPageForFrame(int frame) {
	//id url= [[[[frame provisionalDataSource] request] URL] absoluteString];
	int dataSource = Cocoa.objc_msgSend(frame, Cocoa.S_dataSource);
	int request = Cocoa.objc_msgSend(dataSource, Cocoa.S_request);
	int url = Cocoa.objc_msgSend(request, Cocoa.S_URL);
	int s = Cocoa.objc_msgSend(url, Cocoa.S_absoluteString);
	int length = OS.CFStringGetLength(s);
	if (length == 0) return;
	char[] buffer = new char[length];
	CFRange range = new CFRange();
	range.length = length;
	OS.CFStringGetCharacters(s, range, buffer);
	String url2 = new String(buffer);
	/*
	 * If the URI indicates that the page is being rendered from memory
	 * (via setText()) then set it to about:blank to be consistent with IE.
	 */
	if (url2.equals (URI_FILEROOT)) {
		url2 = ABOUT_BLANK;
	} else {
		length = URI_FILEROOT.length ();
		if (url2.startsWith (URI_FILEROOT) && url2.charAt (length) == '#') {
			url2 = ABOUT_BLANK + url2.substring (length);
		}
	}

	final Display display = browser.getDisplay();
	boolean top = frame == Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame);
	if (top) {
		StatusTextEvent statusText = new StatusTextEvent(browser);
		statusText.display = display;
		statusText.widget = browser;
		statusText.text = url2;
		for (int i = 0; i < statusTextListeners.length; i++) {
			statusTextListeners[i].changed(statusText);
		}
	}
	LocationEvent location = new LocationEvent(browser);
	location.display = display;
	location.widget = browser;
	location.location = url2;
	location.top = top;
	for (int i = 0; i < locationListeners.length; i++) {
		locationListeners[i].changed(location);
	}
}

void didFailProvisionalLoadWithError(int error, int frame) {
	if (frame == Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame)) {
		/*
		* Feature on WebKit.  The identifier is used here as a marker for the events 
		* related to the top frame and the URL changes related to that top frame as 
		* they should appear on the location bar of a browser.  It is expected to reset
		* the identifier to 0 when the event didFinishLoadingFromDataSource related to 
		* the identifierForInitialRequest event is received.  However, WebKit fires
		* the didFinishLoadingFromDataSource event before the entire content of the
		* top frame is loaded.  It is possible to receive multiple willSendRequest 
		* events in this interval, causing the Browser widget to send unwanted
		* Location.changing events.  For this reason, the identifier is reset to 0
		* when the top frame has either finished loading (didFinishLoadForFrame
		* event) or failed (didFailProvisionalLoadWithError).
		*/
		identifier = 0;
	}

	int errorCode = Cocoa.objc_msgSend(error, Cocoa.S_code);
	if (Cocoa.NSURLErrorBadURL < errorCode) return;

	int failingURL = 0;
	int info = Cocoa.objc_msgSend(error, Cocoa.S_userInfo);
	if (info != 0) {
		int keyString = createNSString("NSErrorFailingURLKey"); //$NON-NLS-1$
		failingURL = Cocoa.objc_msgSend(info, Cocoa.S_valueForKey, keyString);
		OS.CFRelease(keyString);
	}

	if (failingURL != 0 && Cocoa.NSURLErrorServerCertificateNotYetValid <= errorCode && errorCode <= Cocoa.NSURLErrorSecureConnectionFailed) {
		/* handle invalid certificate error */
		int keyString = createNSString("NSErrorPeerCertificateChainKey"); //$NON-NLS-1$
		int certificates = Cocoa.objc_msgSend(info, Cocoa.S_objectForKey, keyString);
		OS.CFRelease(keyString);

		int[] policySearch = new int[1];
		int[] policyRef = new int[1];
		int[] trustRef = new int[1];
		boolean success = false;
		int result = OS.SecPolicySearchCreate(OS.CSSM_CERT_X_509v3, 0, 0, policySearch);
		if (result == 0 && policySearch[0] != 0) {
			result = OS.SecPolicySearchCopyNext(policySearch[0], policyRef);
			if (result == 0 && policyRef[0] != 0) {
				result = OS.SecTrustCreateWithCertificates(certificates, policyRef[0], trustRef);
				if (result == 0 && trustRef[0] != 0) {
					int panel = Cocoa.objc_msgSend(Cocoa.C_SFCertificateTrustPanel, Cocoa.S_sharedCertificateTrustPanel);
					String failingUrlString = getString(Cocoa.objc_msgSend(failingURL, Cocoa.S_absoluteString));
					String message = Compatibility.getMessage("SWT_InvalidCert_Message", new Object[] {failingUrlString}); //$NON-NLS-1$
					int nsString = createNSString(Compatibility.getMessage("SWT_Cancel")); //$NON-NLS-1$
					Cocoa.objc_msgSend(panel, Cocoa.S_setAlternateButtonTitle, nsString);
					OS.CFRelease(nsString);
					Cocoa.objc_msgSend(panel, Cocoa.S_setShowsHelp, 1);
					Cocoa.objc_msgSend(failingURL, Cocoa.S_retain);
					int window = Cocoa.objc_msgSend(webView, Cocoa.S_window);
					nsString = createNSString(message);
					Cocoa.objc_msgSend(panel, Cocoa.S_beginSheetForWindow, window, delegate, Cocoa.S_createPanelDidEnd, failingURL, trustRef[0], nsString);
					OS.CFRelease(nsString);
					success = true;
				}
			}
		}

		if (trustRef[0] != 0) OS.CFRelease(trustRef[0]);
		if (policyRef[0] != 0) OS.CFRelease(policyRef[0]);
		if (policySearch[0] != 0) OS.CFRelease(policySearch[0]);
		if (success) return;
	}

	/* handle other types of errors */
	int description = Cocoa.objc_msgSend(error, Cocoa.S_localizedDescription);
	if (description != 0) {
		String descriptionString = getString(description);
		String message = failingURL != 0 ? getString(Cocoa.objc_msgSend(failingURL, Cocoa.S_absoluteString)) + "\n\n" : ""; //$NON-NLS-1$ //$NON-NLS-2$
		message += Compatibility.getMessage ("SWT_Page_Load_Failed", new Object[] {descriptionString}); //$NON-NLS-1$
		MessageBox messageBox = new MessageBox(browser.getShell(), SWT.OK | SWT.ICON_ERROR);
		messageBox.setMessage(message);
		messageBox.open();
	}
}

void createPanelDidEnd(int sheet, int returnCode, int contextInfo) {
	Cocoa.objc_msgSend(contextInfo, Cocoa.S_autorelease);
	if (returnCode != Cocoa.NSFileHandlingPanelOKButton) return;	/* nothing more to do */

	int /*long*/ method = Cocoa.class_getClassMethod(Cocoa.C_NSURLRequest, Cocoa.S_setAllowsAnyHTTPSCertificate);
	if (method != 0) {
		int host = Cocoa.objc_msgSend(contextInfo, Cocoa.S_host);
		int urlString = Cocoa.objc_msgSend(contextInfo, Cocoa.S_absoluteString);
		Cocoa.objc_msgSend(Cocoa.C_NSURLRequest, Cocoa.S_setAllowsAnyHTTPSCertificate, 1, host);
		setUrl(getString(urlString), null, null);
	}
}

void didFinishLoadForFrame(int frame) {
	if (frame == Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame)) {
		/*
		 * If html is not null then there is html from a previous setText() call
		 * waiting to be set into the about:blank page once it has completed loading. 
		 */
		if (html != null) {
			if (getUrl().startsWith(ABOUT_BLANK)) {
				loadingText = true;
				int htmlString = createNSString(html);
				int urlString;
				if (untrustedText) {
					urlString = createNSString(ABOUT_BLANK);
				} else {
					urlString = createNSString(URI_FILEROOT);
				}
				int url = Cocoa.objc_msgSend(Cocoa.C_NSURL, Cocoa.S_URLWithString, urlString); /* autoreleased */
				int mainFrame = Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame);
				Cocoa.objc_msgSend(mainFrame, Cocoa.S_loadHTMLStringBaseURL, htmlString, url);
				OS.CFRelease(urlString);
				OS.CFRelease(htmlString);
				html = null;
			}
		}

		/*
		* The loadHTMLStringBaseURL invocation above will trigger a second didFinishLoadForFrame
		* callback when it is completed.  If text was just set into the browser then wait
		* for this second callback to come before sending the title or completed events.
		*/
		if (!loadingText) {
			/*
			* To be consistent with other platforms a title event should be fired when a
			* page has completed loading.  A page with a <title> tag will do this
			* automatically when the didReceiveTitle callback is received.  However a page
			* without a <title> tag will not do this by default, so fire the event
			* here with the page's url as the title.
			*/
			final Display display = browser.getDisplay();
			int dataSource = Cocoa.objc_msgSend(frame, Cocoa.S_dataSource);
			if (dataSource != 0) {
				int title = Cocoa.objc_msgSend(dataSource, Cocoa.S_pageTitle);
				if (title == 0) {	/* page has no title */
					final TitleEvent newEvent = new TitleEvent(browser);
					newEvent.display = display;
					newEvent.widget = browser;
					newEvent.title = getUrl();
					for (int i = 0; i < titleListeners.length; i++) {
						titleListeners[i].changed(newEvent);
					}
					if (browser.isDisposed()) return;
				}
			}

			ProgressEvent progress = new ProgressEvent(browser);
			progress.display = display;
			progress.widget = browser;
			progress.current = MAX_PROGRESS;
			progress.total = MAX_PROGRESS;
			for (int i = 0; i < progressListeners.length; i++) {
				progressListeners[i].completed(progress);
			}
		}
		loadingText = false;
		if (browser.isDisposed()) return;

		/*
		* Feature on WebKit.  The identifier is used here as a marker for the events 
		* related to the top frame and the URL changes related to that top frame as 
		* they should appear on the location bar of a browser.  It is expected to reset
		* the identifier to 0 when the event didFinishLoadingFromDataSource related to 
		* the identifierForInitialRequest event is received.  Howeever, WebKit fires
		* the didFinishLoadingFromDataSource event before the entire content of the
		* top frame is loaded.  It is possible to receive multiple willSendRequest 
		* events in this interval, causing the Browser widget to send unwanted
		* Location.changing events.  For this reason, the identifier is reset to 0
		* when the top frame has either finished loading (didFinishLoadForFrame
		* event) or failed (didFailProvisionalLoadWithError).
		*/
		identifier = 0;
	}
}

void hookDOMFocusListeners(int frame) {
	/*
	* These listeners only need to be hooked for OSX 10.4 (Tiger).  The WebKit on
	* OSX < 10.4 does not send these DOM events, and tab traversals that exit
	* WebKit are handled as of OSX 10.5 as a result of using HICocoaViewCreate,
	* which makes these listeners unnecessary.
	*/
	if (!(0x1040 <= OS.VERSION && OS.VERSION < 0x1050)) return;

	int document = Cocoa.objc_msgSend(frame, Cocoa.S_DOMDocument);
	if (document == 0) return;

	int ptr = createNSString(DOMEVENT_FOCUSIN);
	Cocoa.objc_msgSend(document, Cocoa.S_addEventListener, ptr, delegate, 0);
	OS.CFRelease(ptr);

	ptr = createNSString(DOMEVENT_FOCUSOUT);
	Cocoa.objc_msgSend(document, Cocoa.S_addEventListener, ptr, delegate, 0);
	OS.CFRelease(ptr);
}
	
void hookDOMKeyListeners(int frame) {
	/*
	* WebKit's DOM listener api became functional in OSX 10.4, so if an earlier
	* version than this is detected then do not hook the DOM listeners.
	*/
	if (OS.VERSION < 0x1040) return;

	int document = Cocoa.objc_msgSend(frame, Cocoa.S_DOMDocument);
	if (document == 0) return;

	int ptr = createNSString(DOMEVENT_KEYDOWN);
	Cocoa.objc_msgSend(document, Cocoa.S_addEventListener, ptr, delegate, 0);
	OS.CFRelease(ptr);

	ptr = createNSString(DOMEVENT_KEYUP);
	Cocoa.objc_msgSend(document, Cocoa.S_addEventListener, ptr, delegate, 0);
	OS.CFRelease(ptr);
}

void hookDOMMouseListeners(int frame) {
	/*
	* WebKit's DOM listener api became functional in OSX 10.4, so if an earlier
	* version than this is detected then do not hook the DOM listeners.
	*/
	if (OS.VERSION < 0x1040) return;

	int document = Cocoa.objc_msgSend(frame, Cocoa.S_DOMDocument);
	if (document == 0) return;

	int ptr = createNSString(DOMEVENT_MOUSEDOWN);
	Cocoa.objc_msgSend(document, Cocoa.S_addEventListener, ptr, delegate, 0);
	OS.CFRelease(ptr);

	ptr = createNSString(DOMEVENT_MOUSEUP);
	Cocoa.objc_msgSend(document, Cocoa.S_addEventListener, ptr, delegate, 0);
	OS.CFRelease(ptr);

	ptr = createNSString(DOMEVENT_MOUSEMOVE);
	Cocoa.objc_msgSend(document, Cocoa.S_addEventListener, ptr, delegate, 0);
	OS.CFRelease(ptr);

	ptr = createNSString(DOMEVENT_MOUSEWHEEL);
	Cocoa.objc_msgSend(document, Cocoa.S_addEventListener, ptr, delegate, 0);
	OS.CFRelease(ptr);
}

void didReceiveTitle(int title, int frame) {
	if (frame == Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame)) {
		int length = OS.CFStringGetLength(title);
		char[] buffer = new char[length];
		CFRange range = new CFRange();
		range.length = length;
		OS.CFStringGetCharacters(title, range, buffer);
		String newTitle = new String(buffer);
		TitleEvent newEvent = new TitleEvent(browser);
		newEvent.display = browser.getDisplay();
		newEvent.widget = browser;
		newEvent.title = newTitle;
		for (int i = 0; i < titleListeners.length; i++) {
			titleListeners[i].changed(newEvent);
		}
	}
}

void didStartProvisionalLoadForFrame(int frame) {
	/* 
	* This code is intentionally commented.  WebFrameLoadDelegate:didStartProvisionalLoadForFrame is
	* called before WebResourceLoadDelegate:willSendRequest and
	* WebFrameLoadDelegate:didCommitLoadForFrame.  The resource count is reset when didCommitLoadForFrame
	* is received for the top frame.
	*/
//	int webView = WebKit.HIWebViewGetWebView(webViewHandle);
//	if (frame == WebKit.objc_msgSend(webView, WebKit.S_mainFrame)) {
//		/* reset resource status variables */
//		resourceCount= 0;
//	}
}

void didCommitLoadForFrame(int frame) {
	//id url= [[[[frame provisionalDataSource] request] URL] absoluteString];
	int dataSource = Cocoa.objc_msgSend(frame, Cocoa.S_dataSource);
	int request = Cocoa.objc_msgSend(dataSource, Cocoa.S_request);
	int url = Cocoa.objc_msgSend(request, Cocoa.S_URL);
	int s = Cocoa.objc_msgSend(url, Cocoa.S_absoluteString);	
	int length = OS.CFStringGetLength(s);
	if (length == 0) return;
	char[] buffer = new char[length];
	CFRange range = new CFRange();
	range.length = length;
	OS.CFStringGetCharacters(s, range, buffer);
	String url2 = new String(buffer);
	/*
	 * If the URI indicates that the page is being rendered from memory
	 * (via setText()) then set it to about:blank to be consistent with IE.
	 */
	if (url2.equals (URI_FILEROOT)) {
		url2 = ABOUT_BLANK;
	} else {
		length = URI_FILEROOT.length ();
		if (url2.startsWith (URI_FILEROOT) && url2.charAt (length) == '#') {
			url2 = ABOUT_BLANK + url2.substring (length);
		}
	}

	final Display display = browser.getDisplay();
	boolean top = frame == Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame);
	if (top) {
		/* reset resource status variables */
		resourceCount = 0;		
		this.url = url2;

		/*
		* Each invocation of setText() causes didCommitLoadForFrame to be invoked twice,
		* once for the initial navigate to about:blank, and once for the auto-navigate
		* to about:blank that WebKit does when loadHTMLStringBaseURL is invoked.  If
		* this is the first didCommitLoadForFrame callback received for a setText()
		* invocation then do not send any events or re-install registered BrowserFunctions. 
		*/
		if (url2.startsWith(ABOUT_BLANK) && html != null) return;

		Enumeration elements = functions.elements ();
		while (elements.hasMoreElements ()) {
			BrowserFunction function = (BrowserFunction)elements.nextElement ();
			execute (function.functionString);
		}

		final ProgressEvent progress = new ProgressEvent(browser);
		progress.display = display;
		progress.widget = browser;
		progress.current = 1;
		progress.total = MAX_PROGRESS;
		for (int i = 0; i < progressListeners.length; i++) {
			progressListeners[i].changed(progress);
		}
		if (browser.isDisposed()) return;
		
		StatusTextEvent statusText = new StatusTextEvent(browser);
		statusText.display = display;
		statusText.widget = browser;
		statusText.text = url2;
		for (int i = 0; i < statusTextListeners.length; i++) {
			statusTextListeners[i].changed(statusText);
		}
		if (browser.isDisposed()) return;

		hookDOMKeyListeners(frame);
	}

	hookDOMFocusListeners(frame);
	hookDOMMouseListeners(frame);

	LocationEvent location = new LocationEvent(browser);
	location.display = display;
	location.widget = browser;
	location.location = url2;
	location.top = top;
	for (int i = 0; i < locationListeners.length; i++) {
		locationListeners[i].changed(location);
	}
}

void windowScriptObjectAvailable (int windowScriptObject) {
	int str = createNSString("external"); //$NON-NLS-1$
	if (str != 0) {
		Cocoa.objc_msgSend (windowScriptObject, Cocoa.S_setValue, delegate, str);
		OS.CFRelease (str);
	}
}

/* WebResourceLoadDelegate */

void didFinishLoadingFromDataSource(int identifier, int dataSource) {
	/*
	* Feature on WebKit.  The identifier is used here as a marker for the events 
	* related to the top frame and the URL changes related to that top frame as 
	* they should appear on the location bar of a browser.  It is expected to reset
	* the identifier to 0 when the event didFinishLoadingFromDataSource related to 
	* the identifierForInitialRequest event is received.  Howeever, WebKit fires
	* the didFinishLoadingFromDataSource event before the entire content of the
	* top frame is loaded.  It is possible to receive multiple willSendRequest 
	* events in this interval, causing the Browser widget to send unwanted
	* Location.changing events.  For this reason, the identifier is reset to 0
	* when the top frame has either finished loading (didFinishLoadForFrame
	* event) or failed (didFailProvisionalLoadWithError).
	*/
	// this code is intentionally commented
	//if (this.identifier == identifier) this.identifier = 0;
}

void didFailLoadingWithError(int identifier, int error, int dataSource) {
	/*
	* Feature on WebKit.  The identifier is used here as a marker for the events 
	* related to the top frame and the URL changes related to that top frame as 
	* they should appear on the location bar of a browser.  It is expected to reset
	* the identifier to 0 when the event didFinishLoadingFromDataSource related to 
	* the identifierForInitialRequest event is received.  Howeever, WebKit fires
	* the didFinishLoadingFromDataSource event before the entire content of the
	* top frame is loaded.  It is possible to receive multiple willSendRequest 
	* events in this interval, causing the Browser widget to send unwanted
	* Location.changing events.  For this reason, the identifier is reset to 0
	* when the top frame has either finished loading (didFinishLoadForFrame
	* event) or failed (didFailProvisionalLoadWithError).
	*/
	// this code is intentionally commented
	//if (this.identifier == identifier) this.identifier = 0;
}

void didReceiveAuthenticationChallengefromDataSource (int identifier, int challenge, int dataSource) {
	/*
	 * Do not invoke the listeners if this challenge has been failed too many
	 * times because a listener is likely giving incorrect credentials repeatedly
	 * and will do so indefinitely.
	 */
	int count = Cocoa.objc_msgSend (challenge, Cocoa.S_previousFailureCount);
	if (count < 3) {
		for (int i = 0; i < authenticationListeners.length; i++) {
			AuthenticationEvent event = new AuthenticationEvent (browser);
			event.location = lastNavigateURL;
			authenticationListeners[i].authenticate (event);
			if (!event.doit) {
				int challengeSender = Cocoa.objc_msgSend (challenge, Cocoa.S_sender);
				Cocoa.objc_msgSend (challengeSender, Cocoa.S_cancelAuthenticationChallenge, challenge);
				return;
			}
			if (event.user != null && event.password != null) {
				int challengeSender = Cocoa.objc_msgSend (challenge, Cocoa.S_sender);
				int user = createNSString(event.user);
				int password = createNSString(event.password);
				int credential = Cocoa.objc_msgSend (Cocoa.C_NSURLCredential, Cocoa.S_credentialWithUser, user, password, Cocoa.NSURLCredentialPersistenceForSession);
				Cocoa.objc_msgSend (challengeSender, Cocoa.S_useCredential, credential, challenge);
				OS.CFRelease (password);
				OS.CFRelease (user);
				return;
			}
		}
	}

	/* no listener handled the challenge, so try to invoke the native panel */
	int cls = Cocoa.C_WebPanelAuthenticationHandler;
	if (cls != 0) {
		int method = Cocoa.class_getClassMethod (cls, Cocoa.S_sharedHandler);
		if (method != 0) {
			int handler = Cocoa.objc_msgSend (cls, Cocoa.S_sharedHandler);
			if (handler != 0) {
				int window = Cocoa.objc_msgSend (webView, Cocoa.S_window);
				Cocoa.objc_msgSend (handler, Cocoa.S_startAuthentication, challenge, window);
				return;
			}
		}
	}

	/* the native panel was not available, so show a custom dialog */
	String[] userReturn = new String[1], passwordReturn = new String[1];
	int proposedCredential = Cocoa.objc_msgSend (challenge, Cocoa.S_proposedCredential);
	if (proposedCredential != 0) {
		int user = Cocoa.objc_msgSend (proposedCredential, Cocoa.S_user);
		userReturn[0] = getString (user);
		boolean hasPassword = Cocoa.objc_msgSend (proposedCredential, Cocoa.S_hasPassword) != 0;
		if (hasPassword) {
			int password = Cocoa.objc_msgSend (proposedCredential, Cocoa.S_password);
			passwordReturn[0] = getString (password);
		}
	}

	int space = Cocoa.objc_msgSend (challenge, Cocoa.S_protectionSpace);
	int host = Cocoa.objc_msgSend (space, Cocoa.S_host);
	String hostString = getString (host) + ':';
	int port = Cocoa.objc_msgSend (space, Cocoa.S_port);
	hostString += port;
	int realm = Cocoa.objc_msgSend (space, Cocoa.S_realm);
	String realmString = getString (realm);
	boolean result = showAuthenticationDialog (userReturn, passwordReturn, hostString, realmString);
	int challengeSender = Cocoa.objc_msgSend (challenge, Cocoa.S_sender);
	if (!result) {
		Cocoa.objc_msgSend (challengeSender, Cocoa.S_cancelAuthenticationChallenge, challenge);
		return;
	}

	int user = createNSString(userReturn[0]);
	int password = createNSString(passwordReturn[0]);
	int credential = Cocoa.objc_msgSend (Cocoa.C_NSURLCredential, Cocoa.S_credentialWithUser, user, password, Cocoa.NSURLCredentialPersistenceForSession);
	Cocoa.objc_msgSend (challengeSender, Cocoa.S_useCredential, credential, challenge);
	OS.CFRelease (password);
	OS.CFRelease (user);
}

boolean showAuthenticationDialog (final String[] user, final String[] password, String host, String realm) {
	final Shell shell = new Shell (browser.getShell ());
	shell.setLayout (new GridLayout ());
	String title = SWT.getMessage ("SWT_Authentication_Required"); //$NON-NLS-1$
	shell.setText (title);
	Label label = new Label (shell, SWT.WRAP);
	label.setText (Compatibility.getMessage ("SWT_Enter_Username_and_Password", new String[] {realm, host})); //$NON-NLS-1$

	GridData data = new GridData ();
	Monitor monitor = browser.getMonitor ();
	int maxWidth = monitor.getBounds ().width * 2 / 3;
	int width = label.computeSize (SWT.DEFAULT, SWT.DEFAULT).x;
	data.widthHint = Math.min (width, maxWidth);
	data.horizontalAlignment = GridData.FILL;
	data.grabExcessHorizontalSpace = true;
	label.setLayoutData (data);

	Label userLabel = new Label (shell, SWT.NONE);
	userLabel.setText (SWT.getMessage ("SWT_Username")); //$NON-NLS-1$

	final Text userText = new Text (shell, SWT.BORDER);
	if (user[0] != null) userText.setText (user[0]);
	data = new GridData ();
	data.horizontalAlignment = GridData.FILL;
	data.grabExcessHorizontalSpace = true;
	userText.setLayoutData (data);

	Label passwordLabel = new Label (shell, SWT.NONE);
	passwordLabel.setText (SWT.getMessage ("SWT_Password")); //$NON-NLS-1$

	final Text passwordText = new Text (shell, SWT.PASSWORD | SWT.BORDER);
	if (password[0] != null) passwordText.setText (password[0]);
	data = new GridData ();
	data.horizontalAlignment = GridData.FILL;
	data.grabExcessHorizontalSpace = true;
	passwordText.setLayoutData (data);

	final boolean[] result = new boolean[1];
	final Button[] buttons = new Button[2];
	Listener listener = new Listener() {
		public void handleEvent(Event event) {
			user[0] = userText.getText();
			password[0] = passwordText.getText();
			result[0] = event.widget == buttons[1];
			shell.close();
		}	
	};

	Composite composite = new Composite (shell, SWT.NONE);
	data = new GridData ();
	data.horizontalAlignment = GridData.END;
	composite.setLayoutData (data);
	composite.setLayout (new GridLayout (2, true));
	buttons[0] = new Button (composite, SWT.PUSH);
	buttons[0].setText (SWT.getMessage("SWT_Cancel")); //$NON-NLS-1$
	buttons[0].setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
	buttons[0].addListener (SWT.Selection, listener);
	buttons[1] = new Button (composite, SWT.PUSH);
	buttons[1].setText (SWT.getMessage("SWT_OK")); //$NON-NLS-1$
	buttons[1].setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
	buttons[1].addListener (SWT.Selection, listener);

	shell.setDefaultButton (buttons[1]);
	shell.pack ();
	shell.open ();
	Display display = browser.getDisplay ();
	while (!shell.isDisposed ()) {
		if (!display.readAndDispatch ()) display.sleep ();
	}

	return result[0];
}

int identifierForInitialRequest(int request, int dataSource) {
	final Display display = browser.getDisplay();
	final ProgressEvent progress = new ProgressEvent(browser);
	progress.display = display;
	progress.widget = browser;
	progress.current = resourceCount;
	progress.total = Math.max(resourceCount, MAX_PROGRESS);
	for (int i = 0; i < progressListeners.length; i++) {
		progressListeners[i].changed(progress);
	}
	if (browser.isDisposed()) return 0;

	/*
	* Note.  numberWithInt uses autorelease.  The resulting object
	* does not need to be released.
	* identifier = [NSNumber numberWithInt: resourceCount++]
	*/	
	int identifier = Cocoa.objc_msgSend(Cocoa.C_NSNumber, Cocoa.S_numberWithInt, resourceCount++);
		
	if (this.identifier == 0) {
		int frame = Cocoa.objc_msgSend(dataSource, Cocoa.S_webFrame);
		if (frame == Cocoa.objc_msgSend(webView, Cocoa.S_mainFrame)) this.identifier = identifier;
	}
	return identifier;
}

int willSendRequest(int identifier, int request, int redirectResponse, int dataSource) {
	int url = Cocoa.objc_msgSend (request, Cocoa.S_URL);
	boolean isFileURL = Cocoa.objc_msgSend (url, Cocoa.S_isFileURL) != 0;
	if (isFileURL) {
		int newRequest = Cocoa.objc_msgSend (request, Cocoa.S_mutableCopy);
		Cocoa.objc_msgSend (newRequest, Cocoa.S_autorelease);
		Cocoa.objc_msgSend (newRequest, Cocoa.S_setCachePolicy, Cocoa.NSURLRequestReloadIgnoringLocalCacheData);
		return newRequest;
	}
	return request;
}

/* handleNotification */

void handleNotification(int notification) {	
}

/* UIDelegate */
int createWebViewWithRequest(int request) {
	WindowEvent newEvent = new WindowEvent(browser);
	newEvent.display = browser.getDisplay();
	newEvent.widget = browser;
	newEvent.required = true;
	if (openWindowListeners != null) {
		for (int i = 0; i < openWindowListeners.length; i++) {
			openWindowListeners[i].open(newEvent);
		}
	}

	int webView = 0;