Foros del Web - Ver Mensaje Individual - hacer menus con submenus que a la vez tenga submenos estos

esteban garay · #3 (**permalink**) 30/12/2004, 09:48

Código:

<html>
<head>
<title> Barra de Menu </title>
<!-- Please see http://www.brainjar.com for terms of use. -->

<style type="text/css">

div.menuBar,
div.menuBar a.menuButton,
div.menu,
div.menu a.menuItem {
  font-family: "MS Sans Serif", Arial, sans-serif;
  font-size: 8pt;
  font-style: normal;
  font-weight: normal;
  color: #000000;
}

div.menuBar {
  background-color: #d0d0d0;
  border: 2px solid;
  border-color: #f0f0f0 #909090 #909090 #f0f0f0;
  padding: 4px 2px 4px 2px;
  text-align: left;
}

div.menuBar a.menuButton {
  background-color: transparent;
  border: 1px solid #d0d0d0;
  color: #000000;
  cursor: default;
  left: 0px;
  margin: 1px;
  padding: 2px 6px 2px 6px;
  position: relative;
  text-decoration: none;
  top: 0px;
  z-index: 100;
}

div.menuBar a.menuButton:hover {
  background-color: transparent;
  border-color: #f0f0f0 #909090 #909090 #f0f0f0;
  color: #000000;
}

div.menuBar a.menuButtonActive,
div.menuBar a.menuButtonActive:hover {
  background-color: #a0a0a0;
  border-color: #909090 #f0f0f0 #f0f0f0 #909090;
  color: #ffffff;
  left: 1px;
  top: 1px;
}

div.menu {
  background-color: #d0d0d0;
  border: 2px solid;
  border-color: #f0f0f0 #909090 #909090 #f0f0f0;
  left: 0px;
  padding: 0px 1px 1px 0px;
  position: absolute;
  top: 0px;
  visibility: hidden;
  z-index: 101;
}

div.menu a.menuItem {
  color: #000000;
  cursor: default;
  display: block;
  padding: 3px 1em;
  text-decoration: none;
  white-space: nowrap;
}

div.menu a.menuItem:hover, div.menu a.menuItemHighlight {
  background-color: #000080;
  color: #ffffff;
}

div.menu a.menuItem span.menuItemText {}

div.menu a.menuItem span.menuItemArrow {
  margin-right: -.75em;
}

div.menu div.menuItemSep {
  border-top: 1px solid #909090;
  border-bottom: 1px solid #f0f0f0;
  margin: 4px 2px;
}

</style>

<script type="text/javascript">

function Browser() {
  var ua, s, i;
  this.isIE    = false;  
  this.isNS    = false;  
  this.version = null;

  ua = navigator.userAgent;

  s = "MSIE";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as NS 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }
}

var browser = new Browser();

//----------------------------------------------------------------------------
// Code for handling the menu bar and active button.
//----------------------------------------------------------------------------

var activeButton = null;

// Capture mouse clicks on the page so any active button can be
// deactivated.

if (browser.isIE)
  document.onmousedown = pageMousedown;
else
  document.addEventListener("mousedown", pageMousedown, true);

function pageMousedown(event) {
  var el;
  if (activeButton == null)
    return;

  if (browser.isIE)
    el = window.event.srcElement;
  else
    el = (event.target.tagName ? event.target : event.target.parentNode);

  if (el == activeButton)
    return;

  if (getContainerWith(el, "DIV", "menu") == null) {
    resetButton(activeButton);
    activeButton = null;
  }
}

function buttonClick(event, menuId) {
  var button;

  if (browser.isIE)
    button = window.event.srcElement;
  else
    button = event.currentTarget;

  button.blur();

  if (button.menu == null) {
    button.menu = document.getElementById(menuId);
    menuInit(button.menu);
  }

  if (activeButton != null)
    resetButton(activeButton);

  if (button != activeButton) {
    depressButton(button);
    activeButton = button;
  }
  else
    activeButton = null;

  return false;
}

function buttonMouseover(event, menuId) {
  var button;

  if (browser.isIE)
    button = window.event.srcElement;
  else
    button = event.currentTarget;

  if (activeButton != null && activeButton != button)
    buttonClick(event, menuId);
}

function depressButton(button) {
  var x, y;

  button.className += " menuButtonActive";

  x = getPageOffsetLeft(button);
  y = getPageOffsetTop(button) + button.offsetHeight;

  if (browser.isIE) {
    x += button.offsetParent.clientLeft;
    y += button.offsetParent.clientTop;
  }

  button.menu.style.left = x + "px";
  button.menu.style.top  = y + "px";
  button.menu.style.visibility = "visible";
}

function resetButton(button) {
  removeClassName(button, "menuButtonActive");

  if (button.menu != null) {
    closeSubMenu(button.menu);
    button.menu.style.visibility = "hidden";
  }
}


function menuMouseover(event) {
  var menu;
  if (browser.isIE)
    menu = getContainerWith(window.event.srcElement, "DIV", "menu");
  else
    menu = event.currentTarget;

  if (menu.activeItem != null)
    closeSubMenu(menu);
}

function menuItemMouseover(event, menuId) {
  var item, menu, x, y;
  if (browser.isIE)
    item = getContainerWith(window.event.srcElement, "A", "menuItem");
  else
    item = event.currentTarget;
  menu = getContainerWith(item, "DIV", "menu");

  if (menu.activeItem != null)
    closeSubMenu(menu);
  menu.activeItem = item;

  item.className += " menuItemHighlight";

  if (item.subMenu == null) {
    item.subMenu = document.getElementById(menuId);
    menuInit(item.subMenu);
  }

  x = getPageOffsetLeft(item) + item.offsetWidth;
  y = getPageOffsetTop(item);

  var maxX, maxY;

  if (browser.isNS) {
    maxX = window.scrollX + window.innerWidth;
    maxY = window.scrollY + window.innerHeight;
  }
  if (browser.isIE && browser.version < 6) {
    maxX = document.body.scrollLeft + document.body.clientWidth;
    maxY = document.body.scrollTop  + document.body.clientHeight;
  }
  if (browser.isIE && browser.version >= 6) {
    maxX = document.documentElement.scrollLeft + document.documentElement.clientWidth;
    maxY = document.documentElement.scrollTop  + document.documentElement.clientHeight;
  }
  maxX -= item.subMenu.offsetWidth;
  maxY -= item.subMenu.offsetHeight;

  if (x > maxX)
    x = Math.max(0, x - item.offsetWidth - item.subMenu.offsetWidth
      + (menu.offsetWidth - item.offsetWidth));
  y = Math.max(0, Math.min(y, maxY));

  item.subMenu.style.left = x + "px";
  item.subMenu.style.top  = y + "px";
  item.subMenu.style.visibility = "visible";

  if (browser.isIE)
    window.event.cancelBubble = true;
  else
    event.stopPropagation();
}

function closeSubMenu(menu) {
  if (menu == null || menu.activeItem == null)
    return;

  if (menu.activeItem.subMenu != null) {
    closeSubMenu(menu.activeItem.subMenu);
    menu.activeItem.subMenu.style.visibility = "hidden";
    menu.activeItem.subMenu = null;
  }
  removeClassName(menu.activeItem, "menuItemHighlight");
  menu.activeItem = null;
}