Button.js
/**
* @class Ext.Button
* @extends Ext.util.Observable
* Simple Button class
* @cfg {String} text The button text
* @cfg {Function} handler A function called when the button is clicked (can be used instead of click event)
* @cfg {Object} scope The scope of the handler
* @cfg {Number} minWidth The minimum width for this button (used to give a set of buttons a common width)
* @cfg {String} tooltip The title attribute of the button
* @cfg {Boolean} hidden True to start hidden
* @cfg {Boolean} disabled True to start disabled
* @cfg {Boolean} pressed True to start pressed (only for toggle buttons)
* @cfg {Boolean} enableToggle True to enable pressed/not pressed toggling
* @cfg {String} toggleGroup The group this toggle button is a member of (only 1 per group can be pressed)
* @cfg {Boolean/Object} repeat True to repeat fire the click event while the mouse is down. This can also be
an Ext.util.ClickRepeater config object.
* @constructor
* Create a new button
* @param {String/HTMLElement/Element} renderTo The element to append the button to
* @param {Object} config The config object
*/
Ext.Button = function(renderTo, config){
Ext.apply(this, config);
this.events = {
/**
* @event click
* Fires when this button is clicked
* @param {Button} this
* @param {EventObject} e The click event
*/
'click' : true,
/**
* @event toggle
* Fires when this the "pressed" state of this button changes (only if toggle enabled)
* @param {Button} this
* @param {Boolean} pressed
*/
'toggle' : true
};
if(this.menu){
this.menu = Ext.menu.MenuMgr.get(this.menu);
}
if(renderTo){
this.render(renderTo);
}
};
Ext.extend(Ext.Button, Ext.util.Observable, {
/**
* Read-only. True if this button is hidden
* @type Boolean
*/
hidden : false,
/**
* Read-only. True if this button is disabled
* @type Boolean
*/
disabled : false,
/**
* Read-only. True if this button is pressed (toggle mode only)
* @type Boolean
*/
pressed : false,
menuAlign : 'tl-bl?',
render : function(renderTo){
var btn;
if(!this.dhconfig){
if(!this.template){
if(!Ext.Button.buttonTemplate){
// hideous table template
Ext.Button.buttonTemplate = new Ext.Template(
'<a href="#" tabIndex="1" class="x-btn-focus" title="{1:htmlEncode}">',
'<table border="0" cellpadding="0" cellspacing="0" class="x-btn-wrap"><tbody><tr>',
'<td class="x-btn-left"> </td><td class="x-btn-center"><span class="x-btn-text" unselectable="on">{0}</span></td><td class="x-btn-right"> </td>',
'</tr></tbody></table></a>');
}
this.template = Ext.Button.buttonTemplate;
}
btn = this.template.append(renderTo, [this.text, this.tooltip || ''], true);
if(this.cls){
btn.addClass(this.cls);
}
this.tbl = Ext.get(btn.dom.firstChild, true);
}else{
btn = Ext.DomHelper.append(Ext.get(renderTo).dom, this.dhconfig, true);
}
this.el = btn;
if(this.menu){
this.el.addClass('x-btn-with-menu');
this.menu.on('show', this.onMenuShow, this);
this.menu.on('hide', this.onMenuHide, this);
}
this.autoWidth();
btn.addClass('x-btn');
btn.on('click', this.onClick, this);
btn.on('mouseover', this.onMouseOver, this);
btn.on('mouseout', this.onMouseOut, this);
btn.on('mousedown', this.onMouseDown, this);
btn.on('mouseup', this.onMouseUp, this);
if(this.hidden){
this.hide();
}
if(this.disabled){
this.disable();
}
Ext.ButtonToggleMgr.register(this);
if(this.pressed){
this.toggle(true);
}
if(this.repeat){
var repeater = new Ext.util.ClickRepeater(btn,
typeof this.repeat == 'object' ? this.repeat : {}
);
repeater.on('click', this.onClick, this);
}
},
/**
* Returns the buttons element
* @return {Ext.Element}
*/
getEl : function(){
return this.el;
},
/**
* Destroys this Button.
*/
destroy : function(){
Ext.ButtonToggleMgr.unregister(this);
this.el.removeAllListeners();
this.purgeListeners();
this.el.update('');
this.el.remove();
},
autoWidth : function(){
if(this.tbl){
this.el.setWidth('auto');
this.tbl.setWidth('auto');
if(this.minWidth){
if(this.hidden){
this.el.beginMeasure();
}
if(this.tbl.getWidth() < this.minWidth){
this.tbl.setWidth(this.minWidth);
}
if(this.hidden){
this.el.endMeasure();
}
}
this.el.setWidth(this.tbl.getWidth());
}
},
/**
* Sets this buttons click handler
* @param {Function} handler The function to call when the button is clicked
* @param {Object} scope (optional) Scope for the function passed above
*/
setHandler : function(handler, scope){
this.handler = handler;
this.scope = scope;
},
/**
* Set this buttons text
* @param {String} text
*/
setText : function(text){
this.text = text;
this.el.child('td.x-btn-center span.x-btn-text').update(text);
this.autoWidth();
},
/**
* Get the text for this button
* @return {String}
*/
getText : function(){
return this.text;
},
/**
* Show this button
*/
show: function(){
this.hidden = false;
this.el.setStyle('display', '');
},
/**
* Hide this button
*/
hide: function(){
this.hidden = true;
this.el.setStyle('display', 'none');
},
/**
* Convenience function for boolean show/hide
* @param {Boolean} visible true to show/false to hide
*/
setVisible: function(visible){
if(visible) {
this.show();
}else{
this.hide();
}
},
/**
* If a state it passed, it becomes the pressed state otherwise the current state is toggled.
* @param {Boolean} state (optional) Force a particular state
*/
toggle : function(state){
state = state == undefined ? !this.pressed : state;
if(state != this.pressed){
if(state){
this.el.addClass('x-btn-pressed');
this.pressed = true;
this.fireEvent('toggle', this);
}else{
this.el.removeClass('x-btn-pressed');
this.pressed = false;
this.fireEvent('toggle', this, false);
}
}
},
/**
* Focus the button
*/
focus : function(){
this.el.focus();
},
/**
* Disable this button
*/
disable : function(){
this.el.addClass('x-btn-disabled');
this.disabled = true;
},
/**
* Enable this button
*/
enable : function(){
this.el.removeClass('x-btn-disabled');
this.disabled = false;
},
setDisabled : function(v){
this[v !== true ? 'enable' : 'disable']();
},
onClick : function(e){
if(e){
e.preventDefault();
}
if(!this.disabled){
if(this.enableToggle){
this.toggle();
}
if(this.menu && !this.menu.isVisible()){
this.menu.show(this.el, this.menuAlign);
}
this.fireEvent('click', this, e);
if(this.handler){
this.handler.call(this.scope || this, this, e);
}
}
},
onMouseOver : function(e){
if(!this.disabled){
this.el.addClass('x-btn-over');
}
},
onMouseOut : function(e){
if(!e.within(this.el, true)){
this.el.removeClass('x-btn-over');
}
},
onMouseDown : function(){
if(!this.disabled){
this.el.addClass('x-btn-click');
}
},
onMouseUp : function(){
this.el.removeClass('x-btn-click');
},
onMenuShow : function(e){
this.el.addClass('x-btn-menu-active');
},
onMenuHide : function(e){
this.el.removeClass('x-btn-menu-active');
}
});
Ext.ButtonToggleMgr = function(){
var groups = {};
function toggleGroup(btn, state){
if(state){
var g = groups[btn.toggleGroup];
for(var i = 0, l = g.length; i < l; i++){
if(g[i] != btn){
g[i].toggle(false);
}
}
}
}
return {
register : function(btn){
if(!btn.toggleGroup){
return;
}
var g = groups[btn.toggleGroup];
if(!g){
g = groups[btn.toggleGroup] = [];
}
g.push(btn);
btn.on('toggle', toggleGroup);
},
unregister : function(btn){
if(!btn.toggleGroup){
return;
}
var g = groups[btn.toggleGroup];
if(g){
g.remove(btn);
btn.un('toggle', toggleGroup);
}
}
};
}();
yui-ext - Copyright © 2006 Jack Slocum. |
Yahoo! UI - Copyright © 2006 Yahoo! Inc.
All rights reserved.