Online Praxis 1998 March/Image.iso/CD-ROM/NETSCAPE/CCK/INSTBLDR.Z/netcast.z/ncjs10.jar/utils.js

JavaScript | 1997-10-20 | 5.3 KB | 250 lines

/*
 * utils.js
 *
 * Copyright (c) 1997 Netscape Communications Corporation, All Rights Reserved
 *
 * Utility functions for the Netcaster
 */

function jsdebug_break()
{
    var x;
    x = 1;
}

var debug = false;
var platform = 0;
var defaultContainer = null;

function ChannelObject()
{
    this.name = "";
    this.url = "";
    this.desc = "";

    this.intervalTime = 7200;
    this.absoluteTime = 0;

    this.estCacheSize = -1;
    this.maxCacheSize = 5000000;

    this.topHint = 0;
    this.leftHint = 0;
    this.widthHint =  screen.availWidth * 2 / 3;
    this.heightHint = screen.availHeight * 3 / 4;

    this.mode="window";

    this.type="1";
    this.depth="2";
    this.crawlExtLinks = true;
}

function batchNetscapePrefs(keys, values, warn, set)
{
    var pref;
    var setPrefs = false;

    if (arguments.length == 4) {
        setPrefs=set;
    }

    if (setPrefs) {
        netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesWrite");
    } else {
        netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesRead");
    }

    for (var i=0; i < keys.length; i++) {
        if (setPrefs) {
            var str = 'navigator.preference("' + keys[i] + '", "' + values[i] + '");'
            eval(str);
        } else {
            pref = navigator.preference(keys[i]);

            if ((!pref) || (pref == null))
            {
                if (warn)
                    alert(getLocalString("The preference ") + keys[i] + getLocalString(" is missing from your preferences file and a default value has been used.  Please contact your administrator."));
            } else {
                values[i] = pref;
            }
        }
    }

    if (setPrefs) {
        navigator.savePreferences();
    }

    return;
}

function GetNetscapePref(prefKey, defaultValue, warn)
{
    var pref;

    netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesRead");

    pref = navigator.preference(prefKey);

    if ((!pref) || (pref == null))
    {
        if (warn)
            alert(getLocalString("The preference ") + prefKey + getLocalString(" is missing from your preferences file and a default value has been used.  Please contact your administrator."));

        pref = defaultValue;
    }

    return pref;
}

function GetNetscapePrefBool(prefKey, defaultValue, warn)
{
    var pref;

    netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesRead");

    pref = navigator.preference(prefKey);

    if (!pref) {
        return false;
    } else {
        if (pref == null) {
            if (warn)
                alert(getLocalString("The preference ") + prefKey + getLocalString(" is missing from your preferences file and a default value has been used.  Please contact your administrator."));

            pref = defaultValue;
        } else {
            pref = true;
        }
    }

    return pref;
}

function SetNetscapePref(prefKey, value)
{
    netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesWrite");

    var str = 'navigator.preference("' + prefKey + '", "' + value + '");'
    eval(str);
}

function SetNetscapePrefBool(prefKey, value)
{
    netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesWrite");

    var str = 'navigator.preference("' + prefKey + '", ' + value + ');'
    eval(str);
}

function SecureMoveWindow(theWindow, x, y)
{
    netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserWrite");

    theWindow.moveTo(x, y);
}

function SecureWindowOpen(theWindow, str1, str2, str3)
{
    netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserWrite");

    new_window = theWindow.window.open(str1, str2, str3) ;

    return new_window ;
}

function SupressDblClick(e)
{
    return false;
}

function SupressRightMouse(e)
{
    if (e.which > 1)
        return false;

    return routeEvent(e);
}

function SupressDrag(e)
{
    if (e.type = "dragdrop")
        return false;
}

function SupressError(errMsg)
{
    if (typeof(errMsg) != "string") {
        java.lang.System.out.println("JS Error: Error loading image");
        return false;
    }

    if (errMsg.indexOf('netscape/security/ForbiddenTargetException') != -1) {
        alert(getLocalString("Netcaster requires certain privileges in order to run. ") +
              getLocalString("In order to use Netscape Netcaster, you must grant privileges for netcasting programs. ") +
              getLocalString("To grant privileges and avoid this message in the future, check the \"Remember this decision\" ") +
              getLocalString("box before clicking Grant."));
        components["netcaster"].forceCloseNetcaster();
        return true;
    }


    java.lang.System.out.println("JS Error: " + errMsg);

    return true;
}

function setDebugBool()
{
    debug = false;
}

function setPlatform()
{
    var plat = navigator.platform;

    if (plat.indexOf("Win") != -1)
        platform = 1;
    else if(plat.indexOf("Mac") != -1)
        platform = 2;
    else
        platform = 3;
}

function isWindows() {
    return (platform==1) ? true : false;
}

function isMac() {
    return (platform==2) ? true : false;
}

function isUnix() {
    return (platform==3) ? true : false;
}

function getLocalString(keyString)
{
    if ((typeof depth == "undefined") || (depth.titlebar.document.demo == null)) {
        return keyString;
    }

    return depth.titlebar.document.demo.getLocalString(keyString);
}


function getDefaultContainer() {
    if (defaultContainer == null) {
        defaultContainer = GetNetscapePref("netcaster.defaultContainer", "channel", false);
    }

    return defaultContainer;
}


setDebugBool();
setPlatform();

void(0);