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Menu: new prototype for drilldown menu with keyboard handling

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jzaefferer committed Mar 25, 2010
1 parent 27c5deb commit 37774bb516b448d337062ad7431afda0966476b8
Showing with 235 additions and 0 deletions.
  1. +235 −0 tests/visual/menu/drilldown2.html
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<!doctype html>
<html>
<head>
<title>Menu Visual Test: Default</title>
<link rel="stylesheet" href="../visual.css" type="text/css" />
<link rel="stylesheet" href="../../../themes/base/jquery.ui.all.css" type="text/css" title="ui-theme" />
<script type="text/javascript" src="../../../jquery-1.4.2.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.core.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.widget.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.position.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.button.js"></script>
<script type="text/javascript" src="../../../ui/jquery.ui.autocomplete.js"></script>
<script type="text/javascript">
$(function() {
$.widget("ui.drilldown", {
_init: function() {
var self = this;
this.active = this.element.find(">ul").attr("tabindex", 0);

// hide submenus and create indicator icons
this.element.find("ul").hide().prev("a").prepend('<span class="ui-icon ui-icon-carat-1-e"></span>').end().filter(":first").show();

this.element.find("ul").menu({
focus: function(event, ui) {
self.activeItem = ui.item;
},
selected: function(event, ui) {
if (this != self.active[0]) {
return;
}
var nested = $(">ul", ui.item);
if (nested.length) {
self._open(nested);
} else {
self.element.find("h3").text(ui.item.text());
self.options.selected.apply(this, arguments);
}
}
});

this.back = this.element.children(":last").button({
icons: {
primary: "ui-icon-carat-1-w"
}
}).click(function() {
self.up();
return false;
}).hide();
},

_open: function(submenu) {
this.active = submenu.show().css({
top: 0,
left: 0
}).position({
my: "left top",
at: "left top",
of: this.widget()
});
this.back.show();
},

up: function() {
if (this.active.parent()[0] == this.element[0]) {
return;
}
this.active.hide();
this.active = this.active.parent().parent().show();
if (!this.active.parent().parent().is(":ui-menu")) {
this.back.hide();
}
},

down: function(event) {
var nested = this.activeItem.find(">ul");
if (nested.length) {
this._open(nested);
nested.menu("activate", event, nested.children(":first"))
}
},

show: function() {
},

hide: function() {
},

widget: function() {
return this.element.find(">ul");
}
});

var drilldown = $("#drilldown").drilldown({
selected: function(event, ui) {
$("#log").append("<div>Selected " + ui.item.text() + "</div>");
}
});

drilldown.drilldown("widget").keydown(function(event) {
var menu = drilldown.data("drilldown").active.data("menu");
if (menu.widget().is(":hidden"))
return;
event.stopPropagation();
switch (event.keyCode) {
case $.ui.keyCode.PAGE_UP:
menu.previousPage();
break;
case $.ui.keyCode.PAGE_DOWN:
menu.nextPage();
break;
case $.ui.keyCode.UP:
menu.previous();
break;
case $.ui.keyCode.LEFT:
drilldown.drilldown("up");
break;
case $.ui.keyCode.RIGHT:
drilldown.drilldown("down");
break;
case $.ui.keyCode.DOWN:
menu.next();
event.preventDefault();
break;
case $.ui.keyCode.ENTER:
case $.ui.keyCode.TAB:
menu.select();
drilldown.drilldown("hide");
event.preventDefault();
break;
case $.ui.keyCode.ESCAPE:
drilldown.drilldown("hide", event);
break;
default:
clearTimeout(menu.filterTimer);
var prev = menu.previousFilter || "";
var character = String.fromCharCode(event.keyCode);
var skip = false;
if (character == prev) {
skip = true;
} else {
character = prev + character;
}

var match = menu.widget().children("li").filter(function() {
return new RegExp("^" + character, "i").test($("a", this).text());
});
var match = skip && match.index(menu.active.next()) != -1 ? match.next() : match;
if (!match.length) {
character = String.fromCharCode(event.keyCode);
match = menu.widget().children("li").filter(function() {
return new RegExp("^" + character, "i").test($(this).text());
});
}
if (match.length) {
menu.activate(match);
if (match.length > 1) {
menu.previousFilter = character;
menu.filterTimer = setTimeout(function() {
delete menu.previousFilter;
}, 1000);
} else {
delete menu.previousFilter;
}
} else {
delete menu.previousFilter;
}
}
});
});
</script>
<style>
body { font-size:62.5%; }
.ui-menu { width: 200px; height: 170px; }
.ui-menu .ui-menu { position: absolute; }
.ui-menu .ui-icon { float: right; }
</style>
</head>
<body>

<div id="drilldown">
<h3>Make a selection...</h3>
<ul>
<li>
<a href="#">Amsterdam</a>
<ul>
<li><a href="#">Aberdeen</a></li>
<li><a href="#">Ada</a></li>
<li>
<a href="#">Adamsville</a>
<ul>
<li><a href="#">Anaheim</a></li>
<li>
<a href="#">Cologne</a>
<ul>
<li><a href="#">Mberdeen</a></li>
<li><a href="#">Mda</a></li>
<li><a href="#">Mdamsville</a></li>
<li><a href="#">Mddyston</a></li>
<li><a href="#">Mmesville</a></li>
</ul>
</li>
<li><a href="#">Frankfurt</a></li>
</ul>
</li>
<li><a href="#">Addyston</a></li>
<li><a href="#">Amesville</a></li>
</ul>
</li>
<li><a href="#">Anaheim</a></li>
<li><a href="#">Cologne</a></li>
<li><a href="#">Frankfurt</a></li>
<li>
<a href="#">Magdeburg</a>
<ul>
<li><a href="#">Mberdeen</a></li>
<li><a href="#">Mda</a></li>
<li><a href="#">Mdamsville</a></li>
<li><a href="#">Mddyston</a></li>
<li><a href="#">Mmesville</a></li>
</ul>
</li>
<li><a href="#">Munich</a></li>
<li><a href="#">Utrecht</a></li>
<li><a href="#">Zurich</a></li>
</ul>
<a href="#">Go back</a>
</div>

<div class="ui-widget" style="margin-top:2em; font-family:Arial">
Log:
<div id="log" style="height: 400px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
</div>

</body>
</html>

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