📄 events.js
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/********************************************************************
Slider control creator
By Mark Wilton-Jones 12-13/10/2002
Version 1.2 updated 13/04/2005 to protect against multi-button clicks
*********************************************************************
Please see http://www.howtocreate.co.uk/jslibs/ for details and a demo of this script
Please see http://www.howtocreate.co.uk/jslibs/termsOfUse.html for terms of use
To use:
Inbetween the <head> tags, put:
<script src="PATH TO SCRIPT/slider.js" type="text/javascript" language="javascript1.2"></script>
To create a slider put:
var myslider = new slider(
24, //height of track (excluding border)
150, //width of track (excluding border)
'#9999bb', //colour of track
2, //thickness of track border
'#770000', //colour of track border
2, //thickness of runner (in the middle of the track)
'#000000', //colour of runner
16, //height of button (excluding border)
16, //width of button (excluding border)
'#dfdfdf', //colour of button
2, //thickness of button border (shaded to give 3D effect)
'<font size="2"><></font>', //text of button (if any) - the font declaration is important - size it to suit your slider
true, //direction of travel (true = horizontal [0 is left], false = vertical [0 is top])
'moveFunction', //the name of the function to execute as the slider moves (null if none)
'stopFunction', //the name of the function to execute when the slider stops (null if none)
//the functions must have already been defined (or use null for none)
false //optional, false = use default cursor over button, true = use hand cursor
);
You can then set the position of the slider after the page has loaded using:
myslider.setPosition(numberBetween0and1)
___________________________________________________________________________________________*/
var MWJ_slider_controls = 0;
function getRefToDivNest( divID, oDoc ) {
//get a reference to the slider control, even through nested layers
if ( !oDoc ) {
oDoc = document;
}
if ( document.layers ) {
if ( oDoc.layers[divID] ) {
return oDoc.layers[divID];
} else {
for ( var x = 0, y; !y && x < oDoc.layers.length; x++ ) {
y = getRefToDivNest(divID,oDoc.layers[x].document);
}
return y;
}
}
if ( document.getElementById ) {
return document.getElementById(divID);
}
if ( document.all ) {
return document.all[divID];
}
return document[divID];
}
function sliderMousePos(e) {
//get the position of the mouse
if ( !e ) {
e = window.event;
}if ( !e || ( typeof( e.pageX ) != 'number' && typeof( e.clientX ) != 'number' ) ) {
return [0,0];
}
if ( typeof( e.pageX ) == 'number' ) {
var xcoord = e.pageX; var ycoord = e.pageY;
} else {
var xcoord = e.clientX; var ycoord = e.clientY;
if ( !( ( window.navigator.userAgent.indexOf( 'Opera' ) + 1 ) || ( window.ScriptEngine && ScriptEngine().indexOf( 'InScript' ) + 1 ) || window.navigator.vendor == 'KDE' ) ) {
if ( document.documentElement && ( document.documentElement.scrollTop || document.documentElement.scrollLeft ) ) {
xcoord += document.documentElement.scrollLeft; ycoord += document.documentElement.scrollTop;
} else if ( document.body && ( document.body.scrollTop || document.body.scrollLeft ) ) {
xcoord += document.body.scrollLeft; ycoord += document.body.scrollTop;
}
}
}
return [xcoord,ycoord];
}
function slideIsDown(e) {
if ( document.onmousemove == slideIsMove ) {
return false;
} //protect against multi-button click
//make note of starting positions and detect mouse movements
window.msStartCoord = sliderMousePos(e); window.lyStartCoord = this.style?[parseInt(this.style.left),parseInt(this.style.top)]:[parseInt(this.left),parseInt(this.top)];
if ( document.captureEvents && Event.MOUSEMOVE ) {
document.captureEvents(Event.MOUSEMOVE); document.captureEvents(Event.MOUSEUP);
}
window.storeMOUSEMOVE = document.onmousemove; window.storeMOUSEUP = document.onmouseup; window.storeLayer = this;
document.onmousemove = slideIsMove; document.onmouseup = slideIsMove; return false;
}
function slideIsMove(e) {
//move the slider to its newest position
var msMvCo = sliderMousePos(e); if ( !e ) {
e = window.event ? window.event : ( new Object() );
}
var theLayer = window.storeLayer.style ? window.storeLayer.style : window.storeLayer; var oPix = document.childNodes ? 'px' : 0;
if ( window.storeLayer.hor ) {
var theNewPos = window.lyStartCoord[0] + ( msMvCo[0] - window.msStartCoord[0] );
if ( theNewPos < 0 ) {
theNewPos = 0;
}if ( theNewPos > window.storeLayer.maxLength ) {
theNewPos = window.storeLayer.maxLength;
}
theLayer.left = theNewPos + oPix;
} else {
var theNewPos = window.lyStartCoord[1] + ( msMvCo[1] - window.msStartCoord[1] );
if ( theNewPos < 0 ) {
theNewPos = 0;
}if ( theNewPos > window.storeLayer.maxLength ) {
theNewPos = window.storeLayer.maxLength;
}
theLayer.top = theNewPos + oPix;
}
//run the user's functions and reset the mouse monitoring as before
if ( e.type && e.type.toLowerCase() == 'mousemove' ) {
if ( window.storeLayer.moveFunc ) {
window.storeLayer.moveFunc(theNewPos/window.storeLayer.maxLength);
}
} else {
document.onmousemove = storeMOUSEMOVE; document.onmouseup = window.storeMOUSEUP;
if ( window.storeLayer.stopFunc ) {
window.storeLayer.stopFunc(theNewPos/window.storeLayer.maxLength);
}
}
}
function setSliderPosition(oPortion) {
//set the slider's position
if ( isNaN( oPortion ) || oPortion < 0 ) {
oPortion = 0;
}if ( oPortion > 1 ) {
oPortion = 1;
}
var theDiv = getRefToDivNest(this.id); if ( theDiv.style ) {
theDiv = theDiv.style;
}
oPortion = Math.round( oPortion * this.maxLength ); var oPix = document.childNodes ? 'px' : 0;
if ( this.align ) {
theDiv.left = oPortion + oPix;
} else {
theDiv.top = oPortion + oPix;
}
}
function slider(oThght,oTwdth,oTcol,oTBthk,oTBcol,oTRthk,oTRcol,oBhght,oBwdth,oBcol,oBthk,oBtxt,oAlgn,oMf,oSf,oCrs) {
//draw the slider using huge amounts of nested layers (makes the borders look normal in as many browsers as possible)
if ( document.layers ) {
document.write(
'<ilayer left="0" top="0" height="'+(oThght+(2*oTBthk))+'" width="'+(oTwdth+(2*oTBthk))+'" bgcolor="'+oTBcol+'">'+
'<ilayer left="'+oTBthk+'" top="'+oTBthk+'" height="'+oThght+'" width="'+oTwdth+'" bgcolor="'+oTcol+'">'+
'<layer left="'+(oAlgn?0:Math.floor((oTwdth-oTRthk)/2))+'" top="'+(oAlgn?Math.floor((oThght-oTRthk)/2):0)+'" height="'+(oAlgn?oTRthk:oThght)+'" width="'+(oAlgn?oTwdth:oTRthk)+'" bgcolor="'+oTRcol+'"><\/layer>'+
'<layer left="'+(oAlgn?0:Math.floor((oTwdth-(oBwdth+(2*oBthk)))/2))+'" top="'+(oAlgn?Math.floor((oThght-(oBhght+(2*oBthk)))/2):0)+'" height="'+(oBhght+(2*oBthk))+'" width="'+(oBwdth+(2*oBthk))+'" bgcolor="#000000" onmouseover="this.captureEvents(Event.MOUSEDOWN);this.hor='+oAlgn+';this.maxLength='+((oAlgn?oTwdth:oThght)-((oAlgn?oBwdth:oBhght)+(2*oBthk)))+';this.moveFunc='+oMf+';this.stopFunc='+oSf+';this.onmousedown=slideIsDown;" name="MWJ_slider_controls'+MWJ_slider_controls+'">'+
'<layer left="0" top="0" height="'+(oBhght+oBthk)+'" width="'+(oBwdth+oBthk)+'" bgcolor="#ffffff"><\/layer>'+
'<layer left="'+oBthk+'" top="'+oBthk+'" height="'+oBhght+'" width="'+oBwdth+'" bgcolor="'+oBcol+'">'+
oBtxt+'<\/layer><\/layer><\/ilayer><\/ilayer>'
);
} else {
document.write(
'<div style="position:relative;left:0px;top:0px;height:'+(oThght+(2*oTBthk))+'px;width:'+(oTwdth+(2*oTBthk))+'px;background-color:'+oTBcol+';font-size:0px;">'+
'<div style="position:relative;left:'+oTBthk+'px;top:'+oTBthk+'px;height:'+oThght+'px;width:'+oTwdth+'px;background-color:'+oTcol+';font-size:0px;">'+
'<div style="position:absolute;left:'+(oAlgn?0:Math.floor((oTwdth-oTRthk)/2))+'px;top:'+(oAlgn?Math.floor((oThght-oTRthk)/2):0)+'px;height:'+(oAlgn?oTRthk:oThght)+'px;width:'+(oAlgn?oTwdth:oTRthk)+'px;background-color:'+oTRcol+';font-size:0px;"><\/div>'+
'<div style="position:absolute;left:'+(oAlgn?0:Math.floor((oTwdth-(oBwdth+(2*oBthk)))/2))+'px;top:'+(oAlgn?Math.floor((oThght-(oBhght+(2*oBthk)))/2):0)+'px;height:'+(oBhght+(2*oBthk))+'px;width:'+(oBwdth+(2*oBthk))+'px;font-size:0px;" ondragstart="return false;" onselectstart="return false;" onmouseover="this.hor='+oAlgn+';this.maxLength='+((oAlgn?oTwdth:oThght)-((oAlgn?oBwdth:oBhght)+(2*oBthk)))+';this.moveFunc='+oMf+';this.stopFunc='+oSf+';this.onmousedown=slideIsDown;" id="MWJ_slider_controls'+MWJ_slider_controls+'">'+
'<div style="border-top:'+oBthk+'px solid #ffffff;border-left:'+oBthk+'px solid #ffffff;border-right:'+oBthk+'px solid #000000;border-bottom:'+oBthk+'px solid #000000;">'+
'<div style="height:'+oBhght+'px;width:'+oBwdth+'px;font-size:0px;background-color:'+oBcol+';cursor:'+(oCrs?'pointer;cursor:hand':'default')+';">'+
'<span style="width:100%;text-align:center;">'+oBtxt+'<\/span><\/div><\/div><\/div><\/div><\/div>'
);
}
this.id = 'MWJ_slider_controls'+MWJ_slider_controls; this.maxLength = (oAlgn?oTwdth:oThght)-((oAlgn?oBwdth:oBhght)+(2*oBthk));
this.align = oAlgn; this.setPosition = setSliderPosition; MWJ_slider_controls++;
}
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