1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/xml/SkJS.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,228 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2006 The Android Open Source Project
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +
1.13 +#include <jsapi.h>
1.14 +
1.15 +#include "SkJS.h"
1.16 +#include "SkString.h"
1.17 +
1.18 +#ifdef _WIN32_WCE
1.19 +extern "C" {
1.20 + void abort() {
1.21 + SkASSERT(0);
1.22 + }
1.23 +
1.24 + unsigned int _control87(unsigned int _new, unsigned int mask ) {
1.25 + SkASSERT(0);
1.26 + return 0;
1.27 + }
1.28 +
1.29 + time_t mktime(struct tm *timeptr ) {
1.30 + SkASSERT(0);
1.31 + return 0;
1.32 + }
1.33 +
1.34 +// int errno;
1.35 +
1.36 + char *strdup(const char *) {
1.37 + SkASSERT(0);
1.38 + return 0;
1.39 + }
1.40 +
1.41 + char *strerror(int errnum) {
1.42 + SkASSERT(0);
1.43 + return 0;
1.44 + }
1.45 +
1.46 + int isatty(void* fd) {
1.47 + SkASSERT(0);
1.48 + return 0;
1.49 + }
1.50 +
1.51 + int putenv(const char *envstring) {
1.52 + SkASSERT(0);
1.53 + return 0;
1.54 + }
1.55 +
1.56 + char *getenv(const char *varname) {
1.57 + SkASSERT(0);
1.58 + return 0;
1.59 + }
1.60 +
1.61 + void GetSystemTimeAsFileTime(LPFILETIME lpSystemTimeAsFileTime) {
1.62 + SkASSERT(0);
1.63 + }
1.64 +
1.65 + struct tm * localtime(const time_t *timer) {
1.66 + SkASSERT(0);
1.67 + return 0;
1.68 + }
1.69 +
1.70 + size_t strftime(char *strDest, size_t maxsize, const char *format,
1.71 + const struct tm *timeptr ) {
1.72 + SkASSERT(0);
1.73 + return 0;
1.74 + }
1.75 +
1.76 +}
1.77 +#endif
1.78 +
1.79 +static JSBool
1.80 +global_enumerate(JSContext *cx, JSObject *obj)
1.81 +{
1.82 +#ifdef LAZY_STANDARD_CLASSES
1.83 + return JS_EnumerateStandardClasses(cx, obj);
1.84 +#else
1.85 + return JS_TRUE;
1.86 +#endif
1.87 +}
1.88 +
1.89 +static JSBool
1.90 +global_resolve(JSContext *cx, JSObject *obj, jsval id, uintN flags, JSObject **objp)
1.91 +{
1.92 +#ifdef LAZY_STANDARD_CLASSES
1.93 + if ((flags & JSRESOLVE_ASSIGNING) == 0) {
1.94 + JSBool resolved;
1.95 +
1.96 + if (!JS_ResolveStandardClass(cx, obj, id, &resolved))
1.97 + return JS_FALSE;
1.98 + if (resolved) {
1.99 + *objp = obj;
1.100 + return JS_TRUE;
1.101 + }
1.102 + }
1.103 +#endif
1.104 +
1.105 +#if defined(SHELL_HACK) && defined(DEBUG) && defined(XP_UNIX)
1.106 + if ((flags & (JSRESOLVE_QUALIFIED | JSRESOLVE_ASSIGNING)) == 0) {
1.107 + /*
1.108 + * Do this expensive hack only for unoptimized Unix builds, which are
1.109 + * not used for benchmarking.
1.110 + */
1.111 + char *path, *comp, *full;
1.112 + const char *name;
1.113 + JSBool ok, found;
1.114 + JSFunction *fun;
1.115 +
1.116 + if (!JSVAL_IS_STRING(id))
1.117 + return JS_TRUE;
1.118 + path = getenv("PATH");
1.119 + if (!path)
1.120 + return JS_TRUE;
1.121 + path = JS_strdup(cx, path);
1.122 + if (!path)
1.123 + return JS_FALSE;
1.124 + name = JS_GetStringBytes(JSVAL_TO_STRING(id));
1.125 + ok = JS_TRUE;
1.126 + for (comp = strtok(path, ":"); comp; comp = strtok(NULL, ":")) {
1.127 + if (*comp != '\0') {
1.128 + full = JS_smprintf("%s/%s", comp, name);
1.129 + if (!full) {
1.130 + JS_ReportOutOfMemory(cx);
1.131 + ok = JS_FALSE;
1.132 + break;
1.133 + }
1.134 + } else {
1.135 + full = (char *)name;
1.136 + }
1.137 + found = (access(full, X_OK) == 0);
1.138 + if (*comp != '\0')
1.139 + free(full);
1.140 + if (found) {
1.141 + fun = JS_DefineFunction(cx, obj, name, Exec, 0, JSPROP_ENUMERATE);
1.142 + ok = (fun != NULL);
1.143 + if (ok)
1.144 + *objp = obj;
1.145 + break;
1.146 + }
1.147 + }
1.148 + JS_free(cx, path);
1.149 + return ok;
1.150 + }
1.151 +#else
1.152 + return JS_TRUE;
1.153 +#endif
1.154 +}
1.155 +
1.156 +JSClass global_class = {
1.157 + "global", JSCLASS_NEW_RESOLVE,
1.158 + JS_PropertyStub, JS_PropertyStub,
1.159 + JS_PropertyStub, JS_PropertyStub,
1.160 + global_enumerate, (JSResolveOp) global_resolve,
1.161 + JS_ConvertStub, JS_FinalizeStub
1.162 +};
1.163 +
1.164 +SkJS::SkJS(void* hwnd) : SkOSWindow(hwnd) {
1.165 + if ((fRuntime = JS_NewRuntime(0x100000)) == NULL) {
1.166 + SkASSERT(0);
1.167 + return;
1.168 + }
1.169 + if ((fContext = JS_NewContext(fRuntime, 0x1000)) == NULL) {
1.170 + SkASSERT(0);
1.171 + return;
1.172 + }
1.173 + ;
1.174 + if ((fGlobal = JS_NewObject(fContext, &global_class, NULL, NULL)) == NULL) {
1.175 + SkASSERT(0);
1.176 + return;
1.177 + }
1.178 + if (JS_InitStandardClasses(fContext, fGlobal) == NULL) {
1.179 + SkASSERT(0);
1.180 + return;
1.181 + }
1.182 + setConfig(SkBitmap::kARGB32_Config);
1.183 + updateSize();
1.184 + setVisibleP(true);
1.185 + InitializeDisplayables(getBitmap(), fContext, fGlobal, NULL);
1.186 +}
1.187 +
1.188 +SkJS::~SkJS() {
1.189 + DisposeDisplayables();
1.190 + JS_DestroyContext(fContext);
1.191 + JS_DestroyRuntime(fRuntime);
1.192 + JS_ShutDown();
1.193 +}
1.194 +
1.195 +SkBool SkJS::EvaluateScript(const char* script, jsval* rVal) {
1.196 + return JS_EvaluateScript(fContext, fGlobal, script, strlen(script),
1.197 + "memory" /* no file name */, 0 /* no line number */, rVal);
1.198 +}
1.199 +
1.200 +SkBool SkJS::ValueToString(jsval value, SkString* string) {
1.201 + JSString* str = JS_ValueToString(fContext, value);
1.202 + if (str == NULL)
1.203 + return false;
1.204 + string->set(JS_GetStringBytes(str));
1.205 + return true;
1.206 +}
1.207 +
1.208 +#ifdef SK_DEBUG
1.209 +void SkJS::Test(void* hwnd) {
1.210 + SkJS js(hwnd);
1.211 + jsval val;
1.212 + SkBool success = js.EvaluateScript("22/7", &val);
1.213 + SkASSERT(success);
1.214 + SkString string;
1.215 + success = js.ValueToString(val, &string);
1.216 + SkASSERT(success);
1.217 + SkASSERT(strcmp(string.c_str(), "3.142857142857143") == 0);
1.218 + success = js.EvaluateScript(
1.219 + "var rect = new rectangle();"
1.220 + "rect.left = 4;"
1.221 + "rect.top = 10;"
1.222 + "rect.right = 20;"
1.223 + "rect.bottom = 30;"
1.224 + "rect.width = rect.height + 20;"
1.225 + "rect.draw();"
1.226 + , &val);
1.227 + SkASSERT(success);
1.228 + success = js.ValueToString(val, &string);
1.229 + SkASSERT(success);
1.230 +}
1.231 +#endifASSERT(success);
