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phab/src/applications/uiexample/examples/pager/PhabricatorUIPagerExample.php
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PhabricatorUIPagerExample.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
final class PhabricatorUIPagerExample extends PhabricatorUIExample {
public function getName() {
return 'Pager';
}
public function getDescription() {
return 'Use <tt>AphrontPagerView</tt> to create a control which allows '.
'users to paginate through large amounts of content.';
}
public function renderExample() {
$request = $this->getRequest();
$offset = (int)$request->getInt('offset');
$page_size = 20;
$item_count = 173;
$rows = array();
for ($ii = $offset; $ii < min($item_count, $offset + $page_size); $ii++) {
$rows[] = array(
'Item #'.($ii + 1),
);
}
$table = new AphrontTableView($rows);
$table->setHeaders(
array(
'Item',
));
$panel = new AphrontPanelView();
$panel->appendChild($table);
$panel->appendChild(
'<p class="phabricator-ui-example-note">'.
'Use <tt>AphrontPagerView</tt> to render a pager element.'.
'</p>');
$pager = new AphrontPagerView();
$pager->setPageSize($page_size);
$pager->setOffset($offset);
$pager->setCount($item_count);
$pager->setURI($request->getRequestURI(), 'offset');
$panel->appendChild($pager);
$panel->appendChild(
'<p class="phabricator-ui-example-note">'.
'You can show more or fewer pages of surrounding context.'.
'</p>');
$many_pages_pager = new AphrontPagerView();
$many_pages_pager->setPageSize($page_size);
$many_pages_pager->setOffset($offset);
$many_pages_pager->setCount($item_count);
$many_pages_pager->setURI($request->getRequestURI(), 'offset');
$many_pages_pager->setSurroundingPages(7);
$panel->appendChild($many_pages_pager);
$panel->appendChild(
'<p class="phabricator-ui-example-note">'.
'When it is prohibitively expensive or complex to attain a complete '.
'count of the items, you can select one extra item and set '.
'<tt>hasMorePages(true)</tt> if it exists, creating an inexact pager.'.
'</p>');
$inexact_pager = new AphrontPagerView();
$inexact_pager->setPageSize($page_size);
$inexact_pager->setOffset($offset);
$inexact_pager->setHasMorePages($offset < ($item_count - $page_size));
$inexact_pager->setURI($request->getRequestURI(), 'offset');
$panel->appendChild($inexact_pager);
return $panel;
}
}
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