「knockoutjs：Example 3: JqueryのslideUp/slideDownを組み込む：初期値設定：The custom binding」を別ウィンドウで開く
各種サンプルとソース一覧 | PCスキルの小技・忘却防止メモ |

knockoutjs：Example 3: JqueryのslideUp/slideDownを組み込む：初期値設定：The custom binding

<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<title>knockoutjs：Example 3: JqueryのslideUp/slideDownを組み込む：初期値設定：The custom binding</title>
<script type="text/javascript" src="jquery-1.5.1.min.js"></script>
<script type="text/javascript" src="knockout-2.1.0beta.js"></script>
</head>
<body>
<h1>Example 3: JqueryのslideUp/slideDownを組み込む：初期値設定：The custom binding</h1>
<div data-bind="slideVisible: giftWrap, slideDuration:600">You have selected the option</div>
<label><input type="checkbox" data-bind="checked: giftWrap" /> Gift wrap</label>
<script type="text/javascript">
ko.bindingHandlers.slideVisible = {
init: function(element, valueAccessor) {
var value = ko.utils.unwrapObservable(valueAccessor()); // Get the current value of the current property we're bound to
$(element).toggle(value); // jQuery will hide/show the element depending on whether "value" or true or false
},
update: function(element, valueAccessor, allBindingsAccessor)
{
// First get the latest data that we're bound to
var value = valueAccessor(), allBindings = allBindingsAccessor();
// Next, whether or not the supplied model property is observable, get its current value
var valueUnwrapped = ko.utils.unwrapObservable(value);
// Grab some more data from another binding property
var duration = allBindings.slideDuration || 400; // 400ms is default duration unless otherwise specified
// Now manipulate the DOM element
if (valueUnwrapped == true)
{
$(element).slideDown(duration); // Make the element visible
}
else
{
$(element).slideUp(duration); // Make the element invisible
}
}
};
var viewModel = {
giftWrap: ko.observable()
};
ko.applyBindings(viewModel);
</script>
<div style="font-size:10pt;text-align:right;margin-top:0.5em;">
<a href="//tips.recatnap.info/" target="_top">PCスキルの小技・忘却防止メモ</a> -
<a href="//tips.recatnap.info/wiki/" target="_top">PCスキルの小技・忘却防止メモのまとめ（wiki）</a>
</div>
<div style="font-size:10pt;text-align:center;margin-top:0.5em;padding:0.5em;border-top:1px solid #ccc;">
</div>
</body>
</html>