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Less redrawing of bits in the link thumbnail preview

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This commit is contained in:
Brion Vibber 2010-11-16 15:20:37 -08:00
parent acdb9ac1e5
commit f7fe3fa386
1 changed files with 26 additions and 5 deletions
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31
plugins/LinkPreview/linkpreview.js
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@ -133,13 +133,34 @@
*/
previewLinks: function(text)
{
var old = LinkPreview.links;
var links = LinkPreview.findLinks(text);
$('#link-preview').html('');
for (var i = 0; i < links.length; i++) {
var id = 'link-preview-' + i;
$('#link-preview').append('<span id="' + id + '"></span>');
LinkPreview.prepLinkPreview(id, links[i]);
// Check for existing common elements...
for (var i = 0; i < old.length && i < links.length; i++) {
if (links[i] != old[i]) {
// Change an existing entry!
var id = 'link-preview-' + i;
$('#' + id).html('');
LinkPreview.prepLinkPreview(id, links[i]);
}
}
if (links.length > old.length) {
// Adding new entries, whee!
for (var i = old.length; i < links.length; i++) {
var id = 'link-preview-' + i;
$('#link-preview').append('<span id="' + id + '"></span>');
LinkPreview.prepLinkPreview(id, links[i]);
}
} else if (old.length > links.length) {
// Remove preview entries for links that have been removed.
for (var i = links.length; i < old.length; i++) {
var id = 'link-preview-' + i;
$('#' + id).remove();
}
}
LinkPreview.links = links;
}
};