agerix/jQuery-Autocomplete
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FixPosition supports not just body, but any appendTo node.

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This commit is contained in:
Tomek Główka 2014-07-27 14:54:07 +02:00
parent 46c1dd281d
commit f69a9d0c5e
2 changed files with 33 additions and 11 deletions
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2
readme.md
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@ -46,6 +46,8 @@ The standard jquery.autocomplete.js file is around 2.7KB when minified via Closu
* `dataType`: type of data returned from server. Either 'text' (default) or 'jsonp', which will cause the autocomplete to use jsonp. You may return a json object in your callback when using jsonp.
* `showNoSuggestionNotice`: Default `false`. When no matching results, display a notification label.
* `noSuggestionNotice`: Default `No results`. Text for no matching results label.
* `forceFixPosition`: Default: `false`. Suggestions are automatically positioned when their container is appended to body (look at `appendTo` option), in other cases suggestions are rendered but no positioning is applied.
Set this option to force auto positioning in other cases.
* `orientation`: Default `bottom`. Vertical orientation of the displayed suggestions, available values are `auto`, `top`, `bottom`.
If set to `auto`, the suggestions will be orientated it the way that place them closer to middle of the view port.

42
src/jquery.autocomplete.js
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@ -86,7 +86,8 @@
},
showNoSuggestionNotice: false,
noSuggestionNotice: 'No results',
orientation: 'bottom'
orientation: 'bottom',
forceFixPosition: false
};
// Shared variables:
@ -248,19 +249,21 @@
},
fixPosition: function () {
var that = this;
if (that.options.appendTo != 'body' )
var that = this,
$container = $(that.suggestionsContainer),
containerParent = $container.parent().get(0);
// Fix position automatically when appended to body.
// In other cases force parameter must be given.
if (containerParent !== document.body && !that.options.forceFixPosition)
return;
// Choose orientation
var orientation = that.options.orientation,
$container = $(that.suggestionsContainer),
containerHeight = $container.outerHeight(),
height = that.el.outerHeight(),
offset = that.el.offset(),
styles = {
'top': offset.top,
'left': offset.left
};
styles = { 'top': offset.top, 'left': offset.left };
if (orientation == 'auto') {
var viewPortHeight = $(window).height(),
@ -274,11 +277,28 @@
orientation = 'bottom';
}
if (orientation === 'bottom')
styles.top += height;
else
if (orientation === 'top')
styles.top += -containerHeight;
else
styles.top += height;
// If container is not positioned to body,
// correct its position using offset parent offset
if(containerParent !== document.body) {
var opacity = $container.css('opacity'),
parentOffsetDiff;
if (!that.visible)
$container.css('opacity', 0).show();
parentOffsetDiff = $container.offsetParent().offset();
styles.top -= parentOffsetDiff.top;
styles.left -= parentOffsetDiff.left;
if (!that.visible)
$container.css('opacity', opacity).hide();
}
// -2px to account for suggestions border.
if (that.options.width === 'auto') {
styles.width = (that.el.outerWidth() - 2) + 'px';
}