зеркало из https://github.com/mozilla/gecko-dev.git
680 строки
18 KiB
C
680 строки
18 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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* lm_bkgrd.c
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*
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* Reflects ContinuousUpdate (or background download) methods
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* into JavaScript object.
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*
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*/
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#include "nspr.h"
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#include "plstr.h"
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#include "lm.h"
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#include "autoupdt.h"
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#include "prtypes.h"
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typedef struct JSBackground {
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char *id;
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char *url;
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AutoUpdateConnnection bg_connect;
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} JSBackground;
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enum background_enum {
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BACKGROUND_STATE = -1,
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BACKGROUND_ID = -2,
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BACKGROUND_URL = -3,
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BACKGROUND_FILE_SIZE = -4,
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BACKGROUND_CUR_SIZE = -5,
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BACKGROUND_DEST_FILE = -6,
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BACKGROUND_BYTES_RANGE = -7,
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BACKGROUND_INTERVAL = -8,
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BACKGROUND_ETA = -9,
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BACKGROUND_ERROR_MESSAGE = -10
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};
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static JSPropertySpec background_props[] = {
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{"state", BACKGROUND_STATE, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"id", BACKGROUND_ID, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"url", BACKGROUND_URL, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"file_size", BACKGROUND_FILE_SIZE, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"cur_size", BACKGROUND_CUR_SIZE, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"dest_file", BACKGROUND_DEST_FILE, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"bytes_range", BACKGROUND_BYTES_RANGE, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"interval", BACKGROUND_INTERVAL, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"eta", BACKGROUND_ETA, JSPROP_ENUMERATE|JSPROP_READONLY},
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{"error", BACKGROUND_ERROR_MESSAGE, JSPROP_ENUMERATE|JSPROP_READONLY},
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{0}
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};
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static JSConstDoubleSpec background_constants[] = {
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{BACKGROUND_NEW , "NEW"},
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{BACKGROUND_ERROR , "ERROR"},
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{BACKGROUND_COMPLETE , "COMPLETE"},
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{BACKGROUND_SUSPEND , "SUSPEND"},
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{BACKGROUND_DOWN_LOADING , "DOWN_LOADING"},
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{BACKGROUND_DOWN_LOADING_NOW , "DOWN_LOADING_ALL_BYTES_NOW"},
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{BACKGROUND_DONE , "DONE"},
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{0, 0}
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};
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extern JSClass lm_background_class;
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PR_STATIC_CALLBACK(JSBool)
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background_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
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PR_STATIC_CALLBACK(void)
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background_free(JSBackground *bg);
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PR_STATIC_CALLBACK(void)
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background_finalize(JSContext *cx, JSObject *obj);
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PR_STATIC_CALLBACK(JSBool)
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background_stop(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval);
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PR_STATIC_CALLBACK(JSBool)
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background_start(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval);
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PR_STATIC_CALLBACK(JSBool)
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background_done(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval);
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PR_STATIC_CALLBACK(JSBool)
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background_downloadNow(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval);
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PR_STATIC_CALLBACK(JSBool)
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background_abort(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval);
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PR_STATIC_CALLBACK(JSBool)
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background_toString(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval);
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static JSBool
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background_constructor(JSContext *cx, JSObject *obj,
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char *id, char *url, int32 file_size,
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char* script);
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PR_STATIC_CALLBACK(JSBool)
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Background(JSContext *cx, JSObject *obj, uint argc, jsval *argv, jsval *rval);
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static JSObject *
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lm_NewBackgroundObject(JSContext* cx, char* id, char* url, int32 file_size, char* script);
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static JSObject *
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lm_GetCurrentBackgroundObject(JSContext* cx, char* id);
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PR_STATIC_CALLBACK(JSBool)
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background_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
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{
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JSBackground *bg;
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JSString *str;
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jsint slot;
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AutoUpdateConnnection bg_connect;
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if (!JSVAL_IS_INT(id))
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return JS_TRUE;
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slot = JSVAL_TO_INT(id);
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bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, NULL);
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if (!bg)
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return JS_TRUE;
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/*
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if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ))
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return JS_FALSE;
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*/
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bg_connect = bg->bg_connect;
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if (!bg_connect)
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return JS_TRUE;
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str = JSVAL_TO_STRING(JS_GetEmptyStringValue(cx));
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switch (slot) {
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case BACKGROUND_STATE:
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{
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BackgroundState state = AutoUpdate_GetState(bg_connect);
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*vp = INT_TO_JSVAL(state);
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}
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return JS_TRUE;
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case BACKGROUND_ID:
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if (bg->id) {
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str = JS_NewStringCopyZ(cx, bg->id);
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}
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break;
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case BACKGROUND_URL:
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if (bg->url) {
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str = JS_NewStringCopyZ(cx, bg->url);
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}
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break;
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case BACKGROUND_FILE_SIZE:
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{
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int32 file_size = AutoUpdate_GetFileSize(bg_connect);
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*vp = INT_TO_JSVAL(file_size);
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}
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return JS_TRUE;
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case BACKGROUND_CUR_SIZE:
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{
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int32 downloaded = AutoUpdate_GetCurrentFileSize(bg_connect);
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*vp = INT_TO_JSVAL(downloaded);
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}
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return JS_TRUE;
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case BACKGROUND_DEST_FILE:
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{
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const char* dest_file = AutoUpdate_GetDestFile(bg_connect);
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if (dest_file)
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str = JS_NewStringCopyZ(cx, dest_file);
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}
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break;
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case BACKGROUND_BYTES_RANGE:
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{
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int32 range = AutoUpdate_GetBytesRange(bg_connect);
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*vp = INT_TO_JSVAL(range);
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}
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return JS_TRUE;
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case BACKGROUND_INTERVAL:
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{
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uint32 interval = AutoUpdate_GetInterval(bg_connect);
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*vp = INT_TO_JSVAL(interval);
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}
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return JS_TRUE;
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case BACKGROUND_ETA:
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{
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int32 cur_size = AutoUpdate_GetCurrentFileSize(bg_connect);
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int32 file_size = AutoUpdate_GetFileSize(bg_connect);
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int32 range = AutoUpdate_GetBytesRange(bg_connect);
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int32 interval = AutoUpdate_GetInterval(bg_connect);
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int32 remaining_bytes = file_size - cur_size;
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int32 eta = (interval/range) * remaining_bytes;
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*vp = INT_TO_JSVAL(eta);
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}
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return JS_TRUE;
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case BACKGROUND_ERROR_MESSAGE:
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{
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const char* msg = AutoUpdate_GetErrorMessage(bg_connect);
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if (msg)
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str = JS_NewStringCopyZ(cx, msg);
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}
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break;
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default:
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if (slot < 0) {
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/* Don't mess with user-defined or method properties. */
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return JS_TRUE;
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}
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break;
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}
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/* Common tail code for string-type properties. */
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if (!str)
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return JS_FALSE;
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*vp = STRING_TO_JSVAL(str);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(void)
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background_free(JSBackground *bg)
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{
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if (!bg)
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return;
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/* Autoupdate_Done(bg->bg_connect); */
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bg->bg_connect = NULL;
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PR_FREEIF(bg->id);
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bg->id = NULL;
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PR_FREEIF(bg->url);
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bg->url = NULL;
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}
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PR_STATIC_CALLBACK(void)
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background_finalize(JSContext *cx, JSObject *obj)
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{
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JSBackground *bg;
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bg = JS_GetPrivate(cx, obj);
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if (!bg)
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return;
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background_free(bg);
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JS_free(cx, bg);
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}
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PR_STATIC_CALLBACK(JSBool)
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background_stop(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval)
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{
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JSBackground *bg;
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bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv);
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if (!bg)
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return JS_FALSE;
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/*
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if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ))
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return JS_FALSE;
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*/
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Autoupdate_Suspend(bg->bg_connect);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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background_start(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval)
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{
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JSBackground *bg;
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bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv);
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if (!bg)
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return JS_FALSE;
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/*
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if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ))
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return JS_FALSE;
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*/
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Autoupdate_Resume(bg->bg_connect);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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background_done(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval)
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{
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JSBackground *bg;
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bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv);
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if (!bg)
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return JS_FALSE;
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/*
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if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ))
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return JS_FALSE;
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*/
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Autoupdate_Done(bg->bg_connect);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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background_downloadNow(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval)
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{
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JSBackground *bg;
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bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv);
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if (!bg)
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return JS_FALSE;
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/*
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if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ))
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return JS_FALSE;
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*/
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Autoupdate_DownloadNow(bg->bg_connect);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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background_abort(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval)
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{
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JSBackground *bg;
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bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv);
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if (!bg)
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return JS_FALSE;
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/*
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if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ))
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return JS_FALSE;
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*/
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Autoupdate_Abort(bg->bg_connect);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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background_toString(JSContext *cx, JSObject *obj,
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uintN argc, jsval *argv, jsval *rval)
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{
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JSBackground *bg;
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char *bytes;
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JSString *str;
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bg = JS_GetInstancePrivate(cx, obj, &lm_background_class, argv);
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if (!bg)
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return JS_FALSE;
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/*
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if (!lm_CanAccessTarget(cx, JSTARGET_UNIVERSAL_BROWSER_READ))
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return JS_FALSE;
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*/
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bytes = 0;
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StrAllocCopy(bytes, "<TITLE>Background download details</TITLE>"
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"<TABLE BORDER=0 ALIGN=center VALIGN=top HSPACE=8>");
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StrAllocCat(bytes, "<TR><TD VALIGN=top><STRONG>");
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/* i18n problem */
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/* I believe this part is broken for I18N. Particular after we change the he->title to UTF8 */
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/* force the output HTML to display as in UTF8 will fix it. */
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StrAllocCat(bytes, bg->id);
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StrAllocCat(bytes, "</STRONG></TD><TD> </TD>"
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"<TD VALIGN=top><A HREF=\"");
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StrAllocCat(bytes, bg->url);
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StrAllocCat(bytes, "\">");
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StrAllocCat(bytes, bg->url);
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StrAllocCat(bytes, "</A></TD></TR>");
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StrAllocCat(bytes, "</TABLE>");
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if (!bytes) {
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JS_ReportOutOfMemory(cx);
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return JS_FALSE;
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}
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str = JS_NewString(cx, bytes, XP_STRLEN(bytes));
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if (!str)
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return JS_FALSE;
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*rval = STRING_TO_JSVAL(str);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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background_getInfo(JSContext *cx, JSObject *obj, uintN argc,
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jsval *argv, jsval *rval)
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{
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JSObject *bg_obj;
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JSString *str;
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char *id;
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if (argc == 0 || !JSVAL_IS_STRING(argv[0])) {
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JS_ReportError(cx, "String argument expected for getInfo.");
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return JS_FALSE;
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}
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str = JS_ValueToString(cx, argv[0]);
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if (!str)
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return JS_FALSE;
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id = JS_GetStringBytes(str);
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if (id == NULL)
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return JS_FALSE;
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bg_obj = lm_GetCurrentBackgroundObject(cx, id);
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if (!bg_obj)
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return JS_TRUE;
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*rval = OBJECT_TO_JSVAL(bg_obj);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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background_addPending(JSContext *cx, JSObject *obj, uintN argc,
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jsval *argv, jsval *rval)
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{
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JSString *str;
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char *id;
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char* url;
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char* script;
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int32 file_size;
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JSObject *bg_obj;
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if (argc == 0 || !JSVAL_IS_STRING(argv[0])) {
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JS_ReportError(cx, "String argument expected for addPending.");
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return JS_FALSE;
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}
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str = JS_ValueToString(cx, argv[0]);
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if (!str)
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return JS_FALSE;
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id = JS_GetStringBytes(str);
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if (id == NULL)
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return JS_FALSE;
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str = JS_ValueToString(cx, argv[1]);
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if (!str)
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return JS_FALSE;
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url = JS_GetStringBytes(str);
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if (!JS_ValueToInt32(cx, argv[2], &file_size))
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return JS_FALSE;
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str = JS_ValueToString(cx, argv[3]);
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if (!str)
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return JS_FALSE;
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script = JS_GetStringBytes(str);
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bg_obj = lm_NewBackgroundObject(cx, id, url, file_size, script);
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if (!bg_obj)
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return JS_FALSE;
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*rval = OBJECT_TO_JSVAL(bg_obj);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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background_getPending(JSContext *cx, JSObject *obj, uintN argc,
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jsval *argv, jsval *rval)
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{
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JSObject *bg_obj;
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/* XXX: We need to get a list of bg objects. Or we need to
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* get a list of id's and build an array of objects from
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* that list
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*/
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bg_obj = lm_GetCurrentBackgroundObject(cx, NULL);
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if (!bg_obj)
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return JS_TRUE;
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*rval = OBJECT_TO_JSVAL(bg_obj);
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return JS_TRUE;
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}
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static JSBool
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background_constructor(JSContext *cx, JSObject *obj,
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char *id, char *url, int32 file_size,
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char* script)
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{
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JSBackground *bg;
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MWContext* someRandomContext = XP_FindSomeContext();
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if (!(bg = JS_malloc(cx, sizeof(JSBackground))))
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return JS_FALSE;
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XP_BZERO(bg, sizeof *bg);
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bg->bg_connect = AutoUpdate_Setup(someRandomContext, id, url, file_size, script);
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bg->id = PL_strdup(id);
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bg->url = PL_strdup(url);
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if (!JS_SetPrivate(cx, obj, bg)) {
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background_free(bg);
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JS_free(cx, bg);
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return JS_FALSE;
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}
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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Background(JSContext *cx, JSObject *obj, uint argc, jsval *argv, jsval *rval)
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{
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JSString *str;
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char *id;
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char *url;
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char *script;
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int32 file_size;
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if ((!obj) || (argc != 4))
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return JS_FALSE;
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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;
|
|
}
|
|
|