Dot Menu菜单

本文摘自：http://lucky.diy.myrice.com/javascriptexam/dotMenu.htm

.ButtonBlue {
    BACKGROUND-COLOR: #F0F8FF;
    BORDER-BOTTOM: #473C8B 3px solid;
    BORDER-LEFT: #8B7D7B 3px solid;
    BORDER-RIGHT: #708090 3px solid;
    BORDER-TOP: #B5B5B5 3px solid;
    COLOR: #000000;
    CURSOR: hand;
    FONT-FAMILY: verdana, arial, helvetica;
    FONT-SIZE: 75%;
 FONT-WEIGHT: bold
}
-->
</STYLE>

<!--

function getObjectRef(name) {
  if(document.getElementById) return document.getElementById(name);
  else if(document.all) return document.all[name];
  else return null;
}

// Creates the menu objects
//==========================
var menuCount = 0;
function menuObject(name,x,y,caption, r, parent) {
  if ( (!document.getElementById&&!document.all) || navigator.userAgent.indexOf("Opera")>-1) return;
  document.write('<div id="divDot' + menuCount + '" class="dotempty" style="top: ' + y + '; left: ' + x + '"></div>');
  document.write('<div id="divCap' + menuCount + '" class="caption" style="top: 0; left: 0">' + caption + '</div>');
  
  this.name = name;
  this.parent = parent
  this.ref = "divDot" + menuCount;
  this.caption = "divCap" + menuCount
  if(r) this.radius = r;
  else this.radius = 400;
  this.subMenus = new Array();
  this.state = 0;
  this.moving = false;
  if(this.parent) this.action = "null";
  else this.action = "toggle";
  if(this.parent) this.startAngle = parent.startAngle;
  else this.startAngle = 0;

getObjectRef(this.ref).objRef = this.name;
  
  this.show = function() { show(this.ref); }
  this.hide = function() { hide(this.ref); }
  this.moveMe = function(x,y) { if(this.parent) { x += this.parent.x(); y += this.parent.y(); } moveMe(this.ref,x,y); }
  this.moveBy = function(x,y) { moveBy(this.ref,x,y); }
  this.x = function() { return parseInt(getObjectRef(this.ref).style.left); }
  this.y = function() { return parseInt(getObjectRef(this.ref).style.top); }
  this.w = function() { return getWidth(this.ref); }
  this.h = function() { return getHeight(this.ref); }

this.showCaption = function() {
    moveMe(this.caption, this.x() - (getWidth(this.caption)/2) + (this.w()/2), (this.y() + this.h()));
    show(this.caption);
  }
  this.hideCaption = function() {
    hide(this.caption);
  }
  this.setCaption = function(c) { getObjectRef(this.caption).innerHTML = c;}
 
  this.addItem = function(c,action,r) {
    getObjectRef(this.ref).className = "dot";
    if(!r) r = this.radius/1.55;
    var sub = new menuObject(this.name + ".subMenus[" + this.subMenus.length + "]",0,0,c,r,this);
    sub.parent = this;
    sub.action = action;
    sub.moveMe(0,0);
    this.subMenus[this.subMenus.length] = sub;
    return sub;
  }
  
  this.expand = function() {
    if(this.subMenus.length > 0) {
      var p = true;
      if(this.parent) {
        p = !this.parent.moving;
        for(var i=0; i<this.parent.subMenus.length;i++)
          p = p && ((this.parent.subMenus[i].state==0) || (this.parent.subMenus[i].state==this.parent.subMenus[i].subMenus.length)) && (this.parent.subMenus[i].moving==false);
      } else var o = false;
      
      if((!this.parent || this.parent.state == this.parent.subMenus.length) && p) {
        if(this.parent) this.collapseAll(this.name);
        
        var diff = 360 / this.subMenus.length;
        for(var i=0;i<this.subMenus.length;i++){
          this.subMenus[i].moveMe(0,0);
          this.subMenus[i].show();
          this.moving = true;
          this.subMenus[i].slide(this.subMenus[i].radius * cos(degToRad((diff*i)+this.startAngle)), this.subMenus[i].radius * sin(degToRad((diff*i)+this.startAngle)), this.name + ".subMenus[" + i + "].showCaption();" + this.name + ".moving=false;" + this.name + ".state+=1;");
        }
        if(this.parent){
          getObjectRef(this.parent.ref).style.filter = "alpha (opacity=1)";
          getObjectRef(this.parent.ref).style.MozOpacity = "33%";

getObjectRef(this.parent.ref).className = "dotoff";
          getObjectRef(this.parent.caption).style.filter = "alpha (opacity=1)";
          getObjectRef(this.parent.caption).style.MozOpacity = "66%";
          for(i=0;i<this.parent.subMenus.length;i++) {
              getObjectRef(this.parent.subMenus[i].ref).style.filter = "alpha (opacity=70)";
              getObjectRef(this.parent.subMenus[i].ref).style.MozOpacity = "66%";
              getObjectRef(this.parent.subMenus[i].caption).style.filter = "alpha (opacity=70)";
              getObjectRef(this.parent.subMenus[i].caption).style.MozOpacity = "66%";        
          }
          if(this.parent.parent) {
            for(i=0;i<this.parent.parent.subMenus.length;i++) {
              getObjectRef(this.parent.parent.subMenus[i].ref).style.filter = "alpha (opacity=90)";
              getObjectRef(this.parent.parent.subMenus[i].ref).style.MozOpacity = "33%";
              getObjectRef(this.parent.parent.subMenus[i].ref).className = "dotoff";
              getObjectRef(this.parent.parent.subMenus[i].caption).style.filter = "alpha (opacity=90)";        
              getObjectRef(this.parent.parent.subMenus[i].caption).style.MozOpacity = "33%";
            }
            getObjectRef(this.parent.parent.ref).style.MozOpacity = "33%";
            getObjectRef(this.parent.parent.ref).style.MozOpacity = "33%";
            getObjectRef(this.parent.parent.ref).className = "dotoff";
          }
        }
        getObjectRef(this.ref).style.filter = "alpha (opacity=10)";
        getObjectRef(this.caption).style.filter = "alpha (opacity=10)";  
        getObjectRef(this.ref).style.MozOpacity = "66%";
        getObjectRef(this.caption).style.MozOpacity = "66%"; 
      }
    }  
  }
  this.collapse = function() {
    var p = true;
    p = !this.moving;
    for(var i=0; i<this.subMenus.length;i++)
      p = p && (this.subMenus[i].state==0)  && (this.subMenus[i].moving==false);
    if(p && this.subMenus.length > 0) {
      for(var i=0;i<this.subMenus.length;i++){
        this.subMenus[i].hideCaption();
        this.moving = true;
        this.subMenus[i].slide(0, 0, this.name + ".subMenus[" + i + "].hide();" + this.name + ".moving=false;" + this.name + ".state-=1;");
      }
      if(this.parent){
        getObjectRef(this.parent.ref).style.filter = "alpha (opacity=99)";
        getObjectRef(this.parent.ref).style.MozOpacity = "66%";
        if(this.parent.subMenus.length != 0)
          getObjectRef(this.parent.ref).className = "dot";
        else
          getObjectRef(this.parent.ref).className = "dotempty";
        getObjectRef(this.parent.caption).style.filter = "alpha (opacity=10)";
        getObjectRef(this.parent.caption).style.MozOpacity = "66%";
        for(i=0;i<this.parent.subMenus.length;i++) {
          getObjectRef(this.parent.subMenus[i].ref).style.filter = "alpha (opacity=100)";
          getObjectRef(this.parent.subMenus[i].ref).style.MozOpacity = "100%";
          if(this.parent.subMenus[i].subMenus.length != 0) 
            getObjectRef(this.parent.subMenus[i].ref).className = "dot";
          else
            getObjectRef(this.parent.subMenus[i].ref).className = "dotempty";
          getObjectRef(this.parent.subMenus[i].caption).style.filter = "alpha (opacity=100)";        
          getObjectRef(this.parent.subMenus[i].caption).style.MozOpacity = "100%";
        }
        if(this.parent.parent) {
          for(i=0;i<this.parent.parent.subMenus.length;i++) {
            getObjectRef(this.parent.parent.subMenus[i].ref).style.filter = "alpha (opacity=20)";
            getObjectRef(this.parent.parent.subMenus[i].ref).style.MozOpacity = "66%";
            if(this.parent.parent.subMenus[i].subMenus.length != 0)
              getObjectRef(this.parent.parent.subMenus[i].ref).className = "dot";
            else
              getObjectRef(this.parent.parent.subMenus[i].ref).className = "dotempty";
            getObjectRef(this.parent.parent.subMenus[i].caption).style.filter = "alpha (opacity=1000)";        
            getObjectRef(this.parent.parent.subMenus[i].caption).style.MozOpacity = "100%";
          }
        }
      }
      getObjectRef(this.ref).style.filter = "alpha (opacity=100)";
      getObjectRef(this.caption).style.filter = "alpha (opacity=199)";       
      getObjectRef(this.ref).style.MozOpacity = "100%";
      getObjectRef(this.caption).style.MozOpacity = "100%";
    }
  }

this.collapseAll = function(except) {
    for(var i=0;i<this.parent.subMenus.length;i++) {
      if(this.parent.subMenus[i].name!=except && this.parent.subMenus[i].state==this.parent.subMenus[i].subMenus.length) {
        this.parent.subMenus[i].collapse();
      }    
    }
  }
  this.toggle = function(e) {
    if(document.all) id = window.event.srcElement;
    else id = e.target;
    var dot = eval(id.objRef);
    if(dot.state==0 && !dot.moving) dot.expand();
    else if(dot.state==dot.subMenus.length && !dot.moving) dot.collapse()
  }
  this.doAction = function(e) {
    if(document.all) id = window.event.srcElement;
    else id = e.target;
    var dot = eval(id.objRef);
    if(dot.action == "toggle") dot.toggle(e);
    else eval(dot.action);
  }
  //change these if you want to change the events that trigger the actions
  //========================================================================
  //getObjectRef(this.ref).onmousemove = this.toggle;
  getObjectRef(this.ref).onmouseup = this.doAction;
  this.slide = function(xx,yy,func) {
    if(!func) func = "";
    var px = this.parent.x();
    var py = this.parent.y();
    var x = xx - this.x() + px;
    var y = yy - this.y() + py;
    var d = sqrt(square(xx-this.x() + px) + square(yy-this.y() + py));
    var v = d/8;
    if(v<1) v = 1;
    if( (Math.abs(x) < v) && (Math.abs(y) < v) ) {
      moveMe(this.ref,xx + px,yy + py);      
      if(func != "") eval(func);
    } else {    
      var a = round(atan(x,y));
      dx = round(v * cos(degToRad(a)));
      dy = round(v * sin(degToRad(a)));
      this.moveBy(dx,dy);
      setTimeout(this.name + ".slide(" + xx + "," + yy + ", '" + func + "');",10);    
    }
  }
  // Preoading the windows filters.
  if (menuCount==0 && document.all) document.all[this.ref].style.filter = "alpha (opacity=100)";
  menuCount++;
  return this;
}
// Math functions
//================
var pi = Math.PI;
function square(x) { return (x*x); }
function sqrt(x) { return Math.sqrt(x); }
function round(x) { return Math.round(x); }
function rand(x,y) { return (round(Math.random()*(y-x)) + x); }
function cos(x) { return Math.cos(x) }
function sin(x) { return Math.sin(x) }
function degToRad(x) { return ( x/(360/(2*pi)) ); }
function radToDeg(x) { return ( x*(360/(2*pi)) ); }
function atan(s,t) {
  if( s == 0.0 && t > 0.0)
    angle = 90.0;
  else if(s == 0.0 && t < 0.0) 
    angle = 270.0;
  else if (s < 0.0 ) 
    angle = 180.0 + radToDeg(Math.atan(t/s));
  else if (s > 0.0 && t < 0.0)
    angle = 360.0 + radToDeg(Math.atan(t/s));
  else {
    if(s==0.0) s=0.00001;
    angle = radToDeg(Math.atan(t/s));
  }
  if(angle < 0.0) angle += 360.0;
  return angle;
}
//get dimentions of the page
if(document.all) pageWidth = document.body.offsetWidth-20;
else pageWidth = innerWidth;
if(document.all) pageHeight = document.body.offsetHeight-4;
else pageHeight = innerHeight;

//Create main menu
var menu = new menuObject("menu",pageWidth/2,pageHeight/1.9,"<br>点击这里的方框开始",pageHeight/2);
menu.startAngle = -296;
//show menu and caption
menu.show();
menu.showCaption();
//Add submenus
menu.addItem("<br>首页","location='http://lucky.myrice.com'");
menu.addItem("Special<br>Effects!","location='../Special_Effects.html'");
menu.addItem("Featured Web sites","toggle");
menu.addItem("Contact Us<br>About Us","toggle");
menu.addItem("Web Design!","toggle");
menu.addItem("Free Stuff<br>Fun Stuff","location='.../Free_Stuff.html'");
menu.addItem("Besides Web Design we do .....","toggle");

menu.subMenus[2].addItem("<font color=blue><b>Nikos Tours</font>","location='http://nikostours.com/Return.html'");
menu.subMenus[2].addItem("<font color=blue>Law Office<br>of M.B. Cohen</font>","location='http://southflalaw.com/Return.html'");
menu.subMenus[2].addItem("<font color=blue>South Coast Realty Group</font>","location='http://southcoastrealtygroup.com/Return.html'");
menu.subMenus[2].addItem("<font color=blue>Avenue Productions</font>","location='http://avemodels.com/Return.htm'");
menu.subMenus[2].addItem("<font color=blue>Bronze Your Butt</font>","location='http://bronzeyourbutt.com/Return.html'");
menu.subMenus[2].addItem("<font color=blue>Rainbow Mediators</font>","location='http://rainbowmediators.com/Return.html'");
menu.subMenus[2].addItem("<font color=blue>Richerson Interiors</b></font>","location='http://richersoninteriors.com/Return.html'");

c = menu.subMenus[6].addItem("We can even...","toggle");
c.startAngle = 0;
menu.subMenus[6].addItem("<br>&nbsp;<font color=red><b>Birthday<br>Cards</font>","location='.../Happy_Birthday/Birthday_Cards.html'");
menu.subMenus[6].addItem("<font color=red>&nbsp;Data Bases</font>","location='.../Useful_Data_Base.html'");
menu.subMenus[6].addItem("<font color=red>Occasion<br>Cards</font>","location='.../Occasion_Cards/Occasion.html'");
menu.subMenus[6].addItem("<font color=red>Picture<br>Galleries</font>","location='.../Picture_Gallery/Pictures_Gallery.html'");
menu.subMenus[6].addItem("<font color=red>Shopping<br>Carts</font>","location='.../ShoppingCart.html'");
menu.subMenus[6].addItem("<font color=red>Online<br>Personals</font>","location='.../Personals/Online_Personal.html'");
menu.subMenus[6].addItem("<font color=red>Online<br>Alarm Clocks</font>","location='.../Clocks.html'");

menu.subMenus[6].subMenus[0].addItem("<font color=#8B3A6>Give you a lesson in Computers</font>","location='.../Computer_Lessons/Computer_Lessons.html'");

menu.subMenus[3].addItem("<font color=green><b>Our<br>History</font>","location='.../History.html'");
menu.subMenus[3].addItem("<font color=green>Feedback<br>Form</font>","location='.../MailForm.html'");
menu.subMenus[3].addItem("<font color=green>Contact<br>Information</font></b></font>","location='.../Contact.html'");

menu.subMenus[4].addItem("<font color=#FF1493><b>Pricing","location='.../Pricing.html'");
menu.subMenus[4].addItem("<font color=#FF1493>Hosting","location='.../Hosting.html'");
menu.subMenus[4].addItem("<font color=#FF1493>Domain<br>Registration","location='.../Domain_Registration.html'");

//-->
</script>
</td></tr></table></center>
</body>
</html>

[Ctrl+A 全部选择提示：你可先修改部分代码，再按运行]

posted on 2005-12-09 17:22 hyamw 阅读(221) 评论(0) 收藏举报

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