"http://www.w3.org/TR/html4/strict.dtd">
Example 10: Listening For DOM-Related Events
body { margin:.5em; }
p em {
text-decoration:underline;
}
#logs {
position:absolute;
bottom:0;
right:0;
}
.example10 {
background-color:#9c9;
}
// "load" event handler for the window
YAHOO.example.onWindowLoad = function(p_oEvent) {
// Generic event handler for the Menu instance's DOM-related events
function onMenuEvent(p_sType, p_aArguments) {
var oDOMEvent = p_aArguments[0];
YAHOO.log(
(
"Id: " + this.id + ", " +
"Custom Event Type: " + p_sType + ", " +
"DOM Event Type: " + oDOMEvent.type
),
"info",
"example10"
);
}
/*
Generic event handler for each MenuItem instance's
DOM-related events
*/
function onMenuItemEvent(p_sType, p_aArguments) {
var oDOMEvent = p_aArguments[0];
YAHOO.log(
(
"Index: " + this.index + ", " +
"Group Index: " + this.groupIndex + ", " +
"Custom Event Type: " + p_sType + ", " +
"DOM Event Type: " + oDOMEvent.type
),
"info",
"example10"
);
}
// Create a menu
var oMenu = new YAHOO.widget.Menu("basicmenu"),
// Create the MenuItem instances and add them to the menu
aMenuItemData = [
"MenuItem 0",
"MenuItem 1",
"MenuItem 2",
"MenuItem 3",
"MenuItem 4"
],
nMenuItems = aMenuItemData.length,
oMenuItem;
for(var i=0; i
oMenuItem.mouseOverEvent.subscribe(onMenuItemEvent);
oMenuItem.mouseOutEvent.subscribe(onMenuItemEvent);
oMenuItem.mouseDownEvent.subscribe(onMenuItemEvent);
oMenuItem.mouseUpEvent.subscribe(onMenuItemEvent);
oMenuItem.clickEvent.subscribe(onMenuItemEvent);
oMenuItem.keyDownEvent.subscribe(onMenuItemEvent);
oMenuItem.keyUpEvent.subscribe(onMenuItemEvent);
oMenuItem.keyPressEvent.subscribe(onMenuItemEvent);
}
oMenu.render(document.body);
oMenu.show();
// Focus the first MenuItem instance
oMenu.getItem(0).focus();
// Disable the third MenuItem instance
oMenu.getItem(2).cfg.setProperty("disabled", true);
// Subscribe to the menu's DOM-related events
oMenu.mouseOverEvent.subscribe(onMenuEvent);
oMenu.mouseOutEvent.subscribe(onMenuEvent);
oMenu.mouseDownEvent.subscribe(onMenuEvent);
oMenu.mouseUpEvent.subscribe(onMenuEvent);
oMenu.clickEvent.subscribe(onMenuEvent);
oMenu.keyDownEvent.subscribe(onMenuEvent);
oMenu.keyUpEvent.subscribe(onMenuEvent);
oMenu.keyPressEvent.subscribe(onMenuEvent);
var oLogs = document.createElement("div");
oLogs.id = "logs";
document.body.appendChild(oLogs);
var oLogReader = new YAHOO.widget.LogReader("logs");
}
YAHOO.util.Event.addListener(window, "load", YAHOO.example.onWindowLoad);
Example 10: Listening For DOM-Related Events
This example demonstrates how to listen for DOM-related events. Interaction with the Menu will result in event information being output to the console. Please note: Disabled MenuItem instances do not fire DOM events. This is demonstrated with the MenuItem named "MenuItem 2."
yui.zip( 3,714 k)