/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- * * The contents of this file are subject to the Netscape Public * License Version 1.1 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is Netscape * Communications Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All * Rights Reserved. * * Contributor(s): */ /* * lm_bkgrd.c * * Reflects ContinuousUpdate (or background download) methods * into JavaScript object. * */ #include "nspr.h" #include "plstr.h" #include "lm.h" #include "autoupdt.h" #include "prtypes.h" typedef struct JSBackground { char *id; char *url; AutoUpdateConnnection bg_connect; } JSBackground; enum background_enum { BACKGROUND_STATE = -1, BACKGROUND_ID = -2, BACKGROUND_URL = -3, BACKGROUND_FILE_SIZE = -4, BACKGROUND_CUR_SIZE = -5, BACKGROUND_DEST_FILE = -6, BACKGROUND_BYTES_RANGE = -7, BACKGROUND_INTERVAL = -8, BACKGROUND_ETA = -9, BACKGROUND_ERROR_MESSAGE = -10 }; static JSPropertySpec background_props[] = { {"state", BACKGROUND_STATE, JSPROP_ENUMERATE|JSPROP_READONLY}, {"id", BACKGROUND_ID, JSPROP_ENUMERATE|JSPROP_READONLY}, {"url", BACKGROUND_URL, JSPROP_ENUMERATE|JSPROP_READONLY}, {"file_size", BACKGROUND_FILE_SIZE, JSPROP_ENUMERATE|JSPROP_READONLY}, {"cur_size", BACKGROUND_CUR_SIZE, JSPROP_ENUMERATE|JSPROP_READONLY}, {"dest_file", BACKGROUND_DEST_FILE, JSPROP_ENUMERATE|JSPROP_READONLY}, {"bytes_range", BACKGROUND_BYTES_RANGE, JSPROP_ENUMERATE|JSPROP_READONLY}, {"interval", BACKGROUND_INTERVAL, JSPROP_ENUMERATE|JSPROP_READONLY}, {"eta", BACKGROUND_ETA, JSPROP_ENUMERATE|JSPROP_READONLY}, {"error", BACKGROUND_ERROR_MESSAGE, JSPROP_ENUMERATE|JSPROP_READONLY}, {0} }; static JSConstDoubleSpec background_constants[] = { {BACKGROUND_NEW , "NEW"}, {BACKGROUND_ERROR , "ERROR"}, {BACKGROUND_COMPLETE , "COMPLETE"}, {BACKGROUND_SUSPEND , "SUSPEND"}, {BACKGROUND_DOWN_LOADING , "DOWN_LOADING"}, {BACKGROUND_DOWN_LOADING_NOW , "DOWN_LOADING_ALL_BYTES_NOW"}, {BACKGROUND_DONE , "DONE"}, {0, 0} }; extern JSClass lm_background_class; PR_STATIC_CALLBACK(JSBool) background_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp); PR_STATIC_CALLBACK(void) background_free(JSBackground *bg); PR_STATIC_CALLBACK(void) background_finalize(JSContext *cx, JSObject *obj); PR_STATIC_CALLBACK(JSBool) background_stop(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval); PR_STATIC_CALLBACK(JSBool) background_start(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval); PR_STATIC_CALLBACK(JSBool) background_done(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval); PR_STATIC_CALLBACK(JSBool) background_downloadNow(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval); PR_STATIC_CALLBACK(JSBool) background_abort(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval); PR_STATIC_CALLBACK(JSBool) background_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval); static JSBool background_constructor(JSContext *cx, JSObject *obj, char *id, char *url, int32 file_size, char* script); PR_STATIC_CALLBACK(JSBool) Background(JSContext *cx, JSObject *obj, uint argc, jsval *argv, jsval *rval); static JSObject * lm_NewBackgroundObject(JSContext* cx, char* id, char* url, int32 file_size, char* script); static JSObject * lm_GetCurrentBackgroundObject(JSContext* cx, char* id); PR_STATIC_CALLBACK(JSBool) background_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp) { JSBackground *bg; JSString *str; jsint slot; AutoUpdateConnnection bg_connect; if (!JSVAL_IS_INT(id)) return JS_TRUE; slot = JSVAL_TO_INT(id); bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, NULL); if (!bg) return JS_TRUE; /* if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ)) return JS_FALSE; */ bg_connect = bg->bg_connect; if (!bg_connect) return JS_TRUE; str = JSVAL_TO_STRING(JS_GetEmptyStringValue(cx)); switch (slot) { case BACKGROUND_STATE: { BackgroundState state = AutoUpdate_GetState(bg_connect); *vp = INT_TO_JSVAL(state); } return JS_TRUE; case BACKGROUND_ID: if (bg->id) { str = JS_NewStringCopyZ(cx, bg->id); } break; case BACKGROUND_URL: if (bg->url) { str = JS_NewStringCopyZ(cx, bg->url); } break; case BACKGROUND_FILE_SIZE: { int32 file_size = AutoUpdate_GetFileSize(bg_connect); *vp = INT_TO_JSVAL(file_size); } return JS_TRUE; case BACKGROUND_CUR_SIZE: { int32 downloaded = AutoUpdate_GetCurrentFileSize(bg_connect); *vp = INT_TO_JSVAL(downloaded); } return JS_TRUE; case BACKGROUND_DEST_FILE: { const char* dest_file = AutoUpdate_GetDestFile(bg_connect); if (dest_file) str = JS_NewStringCopyZ(cx, dest_file); } break; case BACKGROUND_BYTES_RANGE: { int32 range = AutoUpdate_GetBytesRange(bg_connect); *vp = INT_TO_JSVAL(range); } return JS_TRUE; case BACKGROUND_INTERVAL: { uint32 interval = AutoUpdate_GetInterval(bg_connect); *vp = INT_TO_JSVAL(interval); } return JS_TRUE; case BACKGROUND_ETA: { int32 cur_size = AutoUpdate_GetCurrentFileSize(bg_connect); int32 file_size = AutoUpdate_GetFileSize(bg_connect); int32 range = AutoUpdate_GetBytesRange(bg_connect); int32 interval = AutoUpdate_GetInterval(bg_connect); int32 remaining_bytes = file_size - cur_size; int32 eta = (interval/range) * remaining_bytes; *vp = INT_TO_JSVAL(eta); } return JS_TRUE; case BACKGROUND_ERROR_MESSAGE: { const char* msg = AutoUpdate_GetErrorMessage(bg_connect); if (msg) str = JS_NewStringCopyZ(cx, msg); } break; default: if (slot < 0) { /* Don't mess with user-defined or method properties. */ return JS_TRUE; } break; } /* Common tail code for string-type properties. */ if (!str) return JS_FALSE; *vp = STRING_TO_JSVAL(str); return JS_TRUE; } PR_STATIC_CALLBACK(void) background_free(JSBackground *bg) { if (!bg) return; /* Autoupdate_Done(bg->bg_connect); */ bg->bg_connect = NULL; PR_FREEIF(bg->id); bg->id = NULL; PR_FREEIF(bg->url); bg->url = NULL; } PR_STATIC_CALLBACK(void) background_finalize(JSContext *cx, JSObject *obj) { JSBackground *bg; bg = JS_GetPrivate(cx, obj); if (!bg) return; background_free(bg); JS_free(cx, bg); } PR_STATIC_CALLBACK(JSBool) background_stop(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSBackground *bg; bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv); if (!bg) return JS_FALSE; /* if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ)) return JS_FALSE; */ Autoupdate_Suspend(bg->bg_connect); return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) background_start(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSBackground *bg; bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv); if (!bg) return JS_FALSE; /* if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ)) return JS_FALSE; */ Autoupdate_Resume(bg->bg_connect); return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) background_done(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSBackground *bg; bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv); if (!bg) return JS_FALSE; /* if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ)) return JS_FALSE; */ Autoupdate_Done(bg->bg_connect); return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) background_downloadNow(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSBackground *bg; bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv); if (!bg) return JS_FALSE; /* if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ)) return JS_FALSE; */ Autoupdate_DownloadNow(bg->bg_connect); return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) background_abort(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSBackground *bg; bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv); if (!bg) return JS_FALSE; /* if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ)) return JS_FALSE; */ Autoupdate_Abort(bg->bg_connect); return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) background_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSBackground *bg; char *bytes; JSString *str; bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv); if (!bg) return JS_FALSE; /* if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ)) return JS_FALSE; */ bytes = 0; StrAllocCopy(bytes, "Background download details" ""); StrAllocCat(bytes, "" ""); StrAllocCat(bytes, "
"); /* i18n problem */ /* I believe this part is broken for I18N. Particular after we change the he->title to UTF8 */ /* force the output HTML to display as in UTF8 will fix it. */ StrAllocCat(bytes, bg->id); StrAllocCat(bytes, " url); StrAllocCat(bytes, "\">"); StrAllocCat(bytes, bg->url); StrAllocCat(bytes, "
"); if (!bytes) { JS_ReportOutOfMemory(cx); return JS_FALSE; } str = JS_NewString(cx, bytes, XP_STRLEN(bytes)); if (!str) return JS_FALSE; *rval = STRING_TO_JSVAL(str); return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) background_getInfo(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSObject *bg_obj; JSString *str; char *id; if (argc == 0 || !JSVAL_IS_STRING(argv[0])) { JS_ReportError(cx, "String argument expected for getInfo."); return JS_FALSE; } str = JS_ValueToString(cx, argv[0]); if (!str) return JS_FALSE; id = JS_GetStringBytes(str); if (id == NULL) return JS_FALSE; bg_obj = lm_GetCurrentBackgroundObject(cx, id); if (!bg_obj) return JS_TRUE; *rval = OBJECT_TO_JSVAL(bg_obj); return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) background_addPending(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSString *str; char *id; char* url; char* script; int32 file_size; JSObject *bg_obj; if (argc == 0 || !JSVAL_IS_STRING(argv[0])) { JS_ReportError(cx, "String argument expected for addPending."); return JS_FALSE; } str = JS_ValueToString(cx, argv[0]); if (!str) return JS_FALSE; id = JS_GetStringBytes(str); if (id == NULL) return JS_FALSE; str = JS_ValueToString(cx, argv[1]); if (!str) return JS_FALSE; url = JS_GetStringBytes(str); if (!JS_ValueToInt32(cx, argv[2], &file_size)) return JS_FALSE; str = JS_ValueToString(cx, argv[3]); if (!str) return JS_FALSE; script = JS_GetStringBytes(str); bg_obj = lm_NewBackgroundObject(cx, id, url, file_size, script); if (!bg_obj) return JS_FALSE; *rval = OBJECT_TO_JSVAL(bg_obj); return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) background_getPending(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { JSObject *bg_obj; /* XXX: We need to get a list of bg objects. Or we need to * get a list of id's and build an array of objects from * that list */ bg_obj = lm_GetCurrentBackgroundObject(cx, NULL); if (!bg_obj) return JS_TRUE; *rval = OBJECT_TO_JSVAL(bg_obj); return JS_TRUE; } static JSBool background_constructor(JSContext *cx, JSObject *obj, char *id, char *url, int32 file_size, char* script) { JSBackground *bg; MWContext* someRandomContext = XP_FindSomeContext(); if (!(bg = JS_malloc(cx, sizeof(JSBackground)))) return JS_FALSE; XP_BZERO(bg, sizeof *bg); bg->bg_connect = AutoUpdate_Setup(someRandomContext, id, url, file_size, script); bg->id = PL_strdup(id); bg->url = PL_strdup(url); if (!JS_SetPrivate(cx, obj, bg)) { background_free(bg); JS_free(cx, bg); return JS_FALSE; } return JS_TRUE; } PR_STATIC_CALLBACK(JSBool) Background(JSContext *cx, JSObject *obj, uint argc, jsval *argv, jsval *rval) { JSString *str; char *id; char *url; char *script; int32 file_size; if ((!obj) || (argc != 4)) return JS_FALSE; str = JS_ValueToString(cx, argv[0]); if (!str) return JS_FALSE; id = JS_GetStringBytes(str); str = JS_ValueToString(cx, argv[1]); if (!str) return JS_FALSE; url = JS_GetStringBytes(str); if (!JS_ValueToInt32(cx, argv[2], &file_size)) return JS_FALSE; str = JS_ValueToString(cx, argv[3]); if (!str) return JS_FALSE; script = JS_GetStringBytes(str); return background_constructor(cx, obj, id, url, file_size, script); } /* * Initialize the class */ JSClass lm_background_class = { "Background", JSCLASS_HAS_PRIVATE, JS_PropertyStub, JS_PropertyStub, background_getProperty, JS_PropertyStub, JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, background_finalize }; static JSFunctionSpec background_methods[] = { {"stop", background_stop, 0}, {"start", background_start, 0}, {"done", background_done, 0}, {"downloadNow", background_downloadNow, 0}, {"abort", background_abort, 0}, {lm_toString_str, background_toString, 1}, {0} }; static JSFunctionSpec background_static_methods[] = { {"getInfo", background_getInfo, 1}, {"addPending", background_addPending, 1}, {"getPending", background_getPending, 0}, {0} }; /* XXX: The following is a hack. We shouldn't have to store stuff in globals */ /* They are used by the static methods */ static JSObject *gPrototype = NULL; /* Using this as a class prototype */ /* and a signal if class has been loaded */ static MochaDecoder *gDecoder=NULL; JSBool lm_InitBackgroundClass(MochaDecoder *decoder) { JSObject *ctor; JSObject *obj; JSContext *cx; JSObject *prototype; obj = decoder->background_update; if (obj) { /* XXX: The following is not thread safe */ gDecoder = decoder; gPrototype = obj; return JS_TRUE; } cx = decoder->js_context; prototype = JS_InitClass(cx, decoder->window_object, NULL, &lm_background_class, Background, 3, background_props, background_methods, NULL, background_static_methods); if (!prototype || !(ctor = JS_GetConstructor(cx, prototype))) return JS_FALSE; if (!JS_DefineConstDoubles(cx, ctor, background_constants)) return JS_FALSE; /* XXX: Should we hold a reference to prototype and decoder objects?? */ decoder->background_update = gPrototype = prototype; gDecoder = decoder; return JS_TRUE; } static JSObject * lm_NewBackgroundObject(JSContext* cx, char* id, char* url, int32 file_size, char* script) { JSObject *obj; obj = JS_NewObject(cx, &lm_background_class, gPrototype, gDecoder->window_object); if (!obj) return NULL; if (!background_constructor(cx, obj, id, url, file_size, script)) return NULL; return obj; } static JSObject * lm_GetCurrentBackgroundObject(JSContext* cx, char* id) { JSObject *obj; JSBackground *bg; AutoUpdateConnnection bg_connect; bg_connect = AutoUpdate_GetPending(id); if (!bg_connect) return NULL; obj = JS_NewObject(cx, &lm_background_class, gPrototype, gDecoder->window_object); if (!obj) return NULL; if (!(bg = JS_malloc(cx, sizeof(JSBackground)))) return NULL; XP_BZERO(bg, sizeof *bg); bg->bg_connect = bg_connect; bg->id = PL_strdup(AutoUpdate_GetID(bg->bg_connect)); bg->url = PL_strdup(AutoUpdate_GetURL(bg->bg_connect)); if (!JS_SetPrivate(cx, obj, bg)) { background_free(bg); JS_free(cx, bg); return NULL; } return obj; }