/* 
        load: Apply a style to all controls on page
        init: Load the custom control
        unload: Popup feedback form
        addComponent: Internal
        dispose: No sample needed.
        findComponent: button creates span in div, find span if present, otherwise handle null result
        $find: see above -- use shortcut command for both
        getComponents: use sample from load. Note that $create includes addComponent
initialize: Put at end of init sample
        notifyScriptLoaded: done
        queueScriptReference: 3 scripts in linear dependency
raiseLoad: override initialize to call base, then if IE7, load control, then raiseLoad
        removeComponent: put in dispose sample -- remove datacontrol if after hours
registerDisposableObject: ask Bertrand/Simon
unregisterDisposableObject: ask Bertrand/Simon
isCreatingComponents: put in init sample

*/

Type.registerNamespace("Demo");

// Constructor
Demo.HoverButton = function(element) {

    Demo.HoverButton.initializeBase(this, [element]);

    this._clickDelegate = null;
    this._hoverDelegate = null;
    this._unhoverDelegate = null;
}
Demo.HoverButton.prototype = {

    // text property accessors.
    get_text: function() {
        return this.get_element().innerHTML;
    },
    set_text: function(value) {
        this.get_element().innerHTML = value;
    },

    // Bind and unbind to click event.
    add_click: function(handler) {
        this.get_events().addHandler('click', handler);
    },
    remove_click: function(handler) {
        this.get_events().removeHandler('click', handler);
    },

    // Bind and unbind to hover event.
    add_hover: function(handler) {
        this.get_events().addHandler('hover', handler);
    },
    remove_hover: function(handler) {
        this.get_events().removeHandler('hover', handler);
    },

    // Bind and unbind to unhover event.
    add_unhover: function(handler) {
        this.get_events().addHandler('unhover', handler);
    },
    remove_unhover: function(handler) {
        this.get_events().removeHandler('unhover', handler);
    },

    // Release resources before control is disposed.
    dispose: function() {

        var element = this.get_element();

        if (this._clickDelegate) {
            Sys.UI.DomEvent.removeHandler(element, 'click', this._clickDelegate);
            delete this._clickDelegate;
        }

        if (this._hoverDelegate) {
            Sys.UI.DomEvent.removeHandler(element, 'focus', this._hoverDelegate);
            Sys.UI.DomEvent.removeHandler(element, 'mouseover', this._hoverDelegate);
            delete this._hoverDelegate;
        }

        if (this._unhoverDelegate) {
            Sys.UI.DomEvent.removeHandler(element, 'blur', this._unhoverDelegate);
            Sys.UI.DomEvent.removeHandler(element, 'mouseout', this._unhoverDelegate);
            delete this._unhoverDelegate;
        }
        Demo.HoverButton.callBaseMethod(this, 'dispose');
    },

    initialize: function() {

        var element = this.get_element();

        if (!element.tabIndex) element.tabIndex = 0;

        if (this._clickDelegate === null) {
            this._clickDelegate = Function.createDelegate(this, this._clickHandler);
        }
        Sys.UI.DomEvent.addHandler(element, 'click', this._clickDelegate);

        if (this._hoverDelegate === null) {
            this._hoverDelegate = Function.createDelegate(this, this._hoverHandler);
        }
        Sys.UI.DomEvent.addHandler(element, 'mouseover', this._hoverDelegate);
        Sys.UI.DomEvent.addHandler(element, 'focus', this._hoverDelegate);

        if (this._unhoverDelegate === null) {
            this._unhoverDelegate = Function.createDelegate(this, this._unhoverHandler);
        }
        Sys.UI.DomEvent.addHandler(element, 'mouseout', this._unhoverDelegate);
        Sys.UI.DomEvent.addHandler(element, 'blur', this._unhoverDelegate);

        Demo.HoverButton.callBaseMethod(this, 'initialize');

    },
    _clickHandler: function(event) {
        var h = this.get_events().getHandler('click');
        if (h) h(this, Sys.EventArgs.Empty);
    },
    _hoverHandler: function(event) {
        var h = this.get_events().getHandler('hover');
        if (h) h(this, Sys.EventArgs.Empty);
    },
    _unhoverHandler: function(event) {
        var h = this.get_events().getHandler('unhover');
        if (h) h(this, Sys.EventArgs.Empty);
    }
}
Demo.HoverButton.registerClass('Demo.HoverButton', Sys.UI.Control);

// Notify ScriptManager that this is the end of the script.
if (typeof(Sys) !== 'undefined') Sys.Application.notifyScriptLoaded();