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/*
* Material Experience - Bezel Class
*
* EYEMG - Interactive Media Group
* Created by Mike Crute (mcrute@eyemg.com)
* Updated by Mike Crute (mcrute@eyemg.com) on 9/26/07
*
* Notification bezel class mimics the notification bezel in BBEdit
* (and to a lesser extent, OS X).
*/
var Bezel = Class.create();
Object.extend(Bezel.prototype,
{
/*
* Creates the bezel HTML elements and adds them to the document body.
*/
initialize: function()
{
this.options = Object.extend(
{
background: "black", // Background color of the bezel
opacity: 0.8, // % Opacity of the bezel
fontSize: "2em", // Font Size
fadeTime: 2, // Fade Time
destroy: true, // Destroy bezel on fade out
displayTime: 1, // How long to display the bezel - 0 is "sticky"
onShow: Prototype.emptyFunction, // After show callback
afterHide: Prototype.emptyFunction // After hide callback
}, arguments[0] || {});
this.visible = false;
var Rounder = new RoundedCorners(this.options.background);
this.bezel = Element.extend(document.createElement("div"));
this.message = Element.extend(document.createElement("div"));
this.bezel.appendChild(Rounder.get(Rounder.directions.top));
this.bezel.appendChild(this.message);
this.bezel.appendChild(Rounder.get(Rounder.directions.bottom));
document.body.appendChild(this.bezel);
this.bezel.setStyle(
{
opacity: this.options.opacity,
zIndex: 9999999,
position: "absolute",
display: "none",
width: "auto",
cursor: "pointer"
});
this.message.setStyle(
{
background: this.options.background,
fontSize: this.options.fontSize,
color: "white",
padding: "0px 1em",
textAlign: "center"
});
// IE does not properly size the bezel so we must constrain it
if (Prototype.Browser.IE)
{
this.bezel.setStyle({ width: "50%" });
}
this.bezel.onclick = function()
{
this.hide();
}.bind(this);
},
/*
* Displays the notification bezel with the requested message.
*/
show: function(message)
{
// Sets the bezel message
this.message.innerHTML = message;
this.visible = true;
// Center the bezel
var mysize = this.bezel.getDimensions();
mysize = window.calcCordsToCenter(mysize.height, mysize.width);
// Set the position of the bezel
this.bezel.setStyle(
{
top: mysize.top + "px",
left: mysize.left + "px"
});
this.bezel.show();
if (typeof this.options.onShow == "function")
{
this.options.onShow();
}
if (this.options.displayTime > 0)
{
new PeriodicalExecuter(function(executer)
{
this.hide();
executer.stop();
}.bind(this), this.options.displayTime);
}
return this;
},
/*
* Removes the bezel from the DOM.
*/
destroy: function()
{
try
{
document.body.removeChild(this.bezel);
}
catch (e)
{
// Ignore errors
}
},
/*
* Fades out the notification bezel. If this is not a sticky bezel
* (displayTime > 0) then this function will be called automatically
* by the show routine.
*/
hide: function()
{
new Effect.Fade(this.bezel,
{
duration: this.options.fadeTime,
afterFinish: function()
{
this.visible = false;
if (this.options.destroy)
{
this.destroy();
}
this.options.afterHide(this);
}.bind(this)
});
}
});
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