internet.au CDrom 42/NETCD42.iso/web/w95/dream2.exe/data1.cab/Program_Files/Configuration/Behaviors/Actions/Check Plugin.js

JavaScript | 1998-11-30 | 5.4 KB | 173 lines

// Copyright 1998 Macromedia, Inc. All rights reserved.

//****************** Globals *******************

function initGlobals() {
  PLUGIN_NAMES = new Array("Shockwave Flash","Shockwave for Director","LiveAudio",
                           "Netscape Media Player","QuickTime Plug-In");
}

var PLUGIN_NAMES;


//******************* BEHAVIOR FUNCTION **********************

//Sends the browser to one URL if the plugin exists, otherwise
//sends the browser to an alternate URL.
//The function accepts the following arguments:
//  plugin  - the *exact* name of the plugin as registered (ex: Shockwave Flash 2.0)
//  theURL  - optional URL, often a filename, URL encoded. (ex: file.htm, http://www.x.com/y.htm)
//  altURL  - required URL, often a filename, URL encoded. (ex: file.htm, http://www.x.com/y.htm)
//  IEGoesToURL - boolean. If true, Internet Explorer always goes to theURL. If false, altURL.
//
//Checks if the plugins array exists and the plugin is found, *or*
//if flag is set, and MSIE browser for Win95/NT (ActiveX ok), then goes to theURL if nonempty.
//else goes to altURL. Goes to a URL by setting the window.location property.

function MM_checkPlugin(plugin, theURL, altURL, IEGoesToURL) { //v2.0
  if ((navigator.plugins && navigator.plugins[plugin]) || //if NS, or
      (IEGoesToURL &&  //if flag set, and MSIE browser for Win95/NT (ActiveX)
       navigator.appName.indexOf('Microsoft') != -1 &&
       navigator.appVersion.indexOf('Mac') == -1 &&
       navigator.appVersion.indexOf('3.1') == -1)) {
    if (theURL.length>2) window.location = theURL;
  } else {
    if (altURL.length>2) window.location = altURL;
  }
  document.MM_returnValue = false;
}


//******************* API **********************


//Can be used with any tag and any event

function canAcceptBehavior(){
  return true;
}



//Returns a Javascript function to be inserted in HTML head with script tags.

function behaviorFunction() {
  return "MM_checkPlugin";
}



//Returns fn call to insert in HTML tag <TAG... onEvent='thisFn(arg)'>
//Calls escQuotes to find embedded quotes and precede them with \
//Calls escape to encode URLs

function applyBehavior() {
  var pluginName, theURL, altURL, IEGoesToURL, theMenu;

  if (document.theForm.theRadio[0].checked) { //get URL from textfield or menu
    pluginName = document.theForm.menu.options[document.theForm.menu.selectedIndex].text;
  } else {
    pluginName = escQuotes(document.theForm.pluginName.value);
  }

  theURL = escape(document.theForm.theURL.value);  //URL encode
  altURL = escape(document.theForm.altURL.value);  //URL encode
  IEGoesToURL = document.theForm.IEGoesToURL.checked;
  if (pluginName && altURL) {
    return "MM_checkPlugin('"+pluginName+"','"+theURL+"','"+altURL+"',"+IEGoesToURL+")";
  } else {
    return MSG_NoPluginOrURL;
  }
}



//Returns a dummy function call to inform Dreamweaver the type of certain behavior
//call arguments. This information is used by DW to fixup behavior args when the
//document is moved or changed.
//
//It is passed an actual function call string generated by applyBehavior(), which
//may have a variable list of arguments, and this should return a matching mask.
//
//The return values are:
//  URL     : argument could be a file path, which DW will update during Save As...
//  NS4.0ref: arg is an object ref that may be changed by Convert Tables to Layers
//  IE4.0ref: arg is an object ref that may be changed by Convert Tables to Layers
//  other...: argument is ignored

function identifyBehaviorArguments(fnCallStr) {
  var argArray;

  argArray = extractArgs(fnCallStr);
  if (argArray.length == 5) {
    return "other,URL,URL,other";
  } else {
    return "";
  }
}



//Passed the function call above, takes prior arguments and reloads the UI.
//Removes any escape characters "\"

function inspectBehavior(argStr){
  var i, plugIn, inMenu;
  var argArray = extractArgs(argStr);

  if (argArray.length == 5) {

    plugIn = unescQuotes(argArray[1]);
    document.theForm.theURL.value = unescape(argArray[2]);  //URL decode
    document.theForm.altURL.value = unescape(argArray[3]);  //URL decode
    document.theForm.IEGoesToURL.checked = eval(argArray[4]);

    inMenu = false;
    for (i=0; i<document.theForm.menu.options.length; i++) { //check if exists in menu
      if (document.theForm.menu.options[i].text == plugIn) {
        document.theForm.menu.selectedIndex = i;
        inMenu = true;
        break;
      }
    }
    if (!inMenu) {
      document.theForm.pluginName.value = plugIn;
      setRadio(1); //set radio
    }
  }
}



//**************** LOCAL FUNCTIONS ****************


//Loads a preset list of some plugin names.

function initializeUI() {
  initGlobals();
  for (i=0; i<PLUGIN_NAMES.length; i++)
    document.theForm.menu.options[i] = new Option(PLUGIN_NAMES[i]);

  document.theForm.theURL.focus(); //set focus on textbox
  document.theForm.theURL.select(); //set insertion point into textbox
}



//Passed a number, selects that radio.

function setRadio(num) {
  document.theForm.theRadio[0].checked = (num==0)?true:false;
  document.theForm.theRadio[1].checked = (num==1)?true:false;
}



//**************** GENERIC FUNCTIONS ****************

//function extractArgs(upStr){
//function escQuotes(theStr){
//function unescQuotes(theStr){
//function browseFile(fieldToStoreURL){