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PhabricatorChatLogChannelLogController.php
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Thu, May 9, 12:42

PhabricatorChatLogChannelLogController.php
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<?php
final class PhabricatorChatLogChannelLogController
extends PhabricatorChatLogController {
private $channelID;
public function shouldAllowPublic() {
return true;
}
public function willProcessRequest(array $data) {
$this->channelID = $data['channelID'];
}
public function processRequest() {
$request = $this->getRequest();
$user = $request->getUser();
$uri = clone $request->getRequestURI();
$uri->setQueryParams(array());
$pager = new AphrontCursorPagerView();
$pager->setURI($uri);
$pager->setPageSize(250);
$query = id(new PhabricatorChatLogQuery())
->setViewer($user)
->withChannelIDs(array($this->channelID));
$channel = id(new PhabricatorChatLogChannelQuery())
->setViewer($user)
->withIDs(array($this->channelID))
->executeOne();
if (!$channel) {
return new Aphront404Response();
}
list($after, $before, $map) = $this->getPagingParameters($request, $query);
$pager->setAfterID($after);
$pager->setBeforeID($before);
$logs = $query->executeWithCursorPager($pager);
// Show chat logs oldest-first.
$logs = array_reverse($logs);
// Divide all the logs into blocks, where a block is the same author saying
// several things in a row. A block ends when another user speaks, or when
// two minutes pass without the author speaking.
$blocks = array();
$block = null;
$last_author = null;
$last_epoch = null;
foreach ($logs as $log) {
$this_author = $log->getAuthor();
$this_epoch = $log->getEpoch();
// Decide whether we should start a new block or not.
$new_block = ($this_author !== $last_author) ||
($this_epoch - (60 * 2) > $last_epoch);
if ($new_block) {
if ($block) {
$blocks[] = $block;
}
$block = array(
'id' => $log->getID(),
'epoch' => $this_epoch,
'author' => $this_author,
'logs' => array($log),
);
} else {
$block['logs'][] = $log;
}
$last_author = $this_author;
$last_epoch = $this_epoch;
}
if ($block) {
$blocks[] = $block;
}
// Figure out CSS classes for the blocks. We alternate colors between
// lines, and highlight the entire block which contains the target ID or
// date, if applicable.
foreach ($blocks as $key => $block) {
$classes = array();
if ($key % 2) {
$classes[] = 'alternate';
}
$ids = mpull($block['logs'], 'getID', 'getID');
if (array_intersect_key($ids, $map)) {
$classes[] = 'highlight';
}
$blocks[$key]['class'] = $classes ? implode(' ', $classes) : null;
}
require_celerity_resource('phabricator-chatlog-css');
$out = array();
foreach ($blocks as $block) {
$author = $block['author'];
$author = phutil_utf8_shorten($author, 18);
$author = phutil_tag('td', array('class' => 'author'), $author);
$href = $uri->alter('at', $block['id']);
$timestamp = $block['epoch'];
$timestamp = phabricator_datetime($timestamp, $user);
$timestamp = phutil_tag(
'a',
array(
'href' => $href,
'class' => 'timestamp'
),
$timestamp);
$message = mpull($block['logs'], 'getMessage');
$message = implode("\n", $message);
$message = phutil_tag(
'td',
array(
'class' => 'message'
),
array(
$timestamp,
$message));
$out[] = phutil_tag(
'tr',
array(
'class' => $block['class'],
),
array(
$author,
$message));
}
$links = array();
$first_uri = $pager->getFirstPageURI();
if ($first_uri) {
$links[] = phutil_tag(
'a',
array(
'href' => $first_uri,
),
"\xC2\xAB ". pht('Newest'));
}
$prev_uri = $pager->getPrevPageURI();
if ($prev_uri) {
$links[] = phutil_tag(
'a',
array(
'href' => $prev_uri,
),
"\xE2\x80\xB9 " . pht('Newer'));
}
$next_uri = $pager->getNextPageURI();
if ($next_uri) {
$links[] = phutil_tag(
'a',
array(
'href' => $next_uri,
),
pht('Older') . " \xE2\x80\xBA");
}
$pager_top = phutil_tag(
'div',
array('class' => 'phabricator-chat-log-pager-top'),
$links);
$pager_bottom = phutil_tag(
'div',
array('class' => 'phabricator-chat-log-pager-bottom'),
$links);
$crumbs = $this
->buildApplicationCrumbs()
->addTextCrumb($channel->getChannelName(), $uri);
$form = id(new AphrontFormView())
->setUser($user)
->setMethod('GET')
->setAction($uri)
->appendChild(
id(new AphrontFormTextControl())
->setLabel(pht('Date'))
->setName('date')
->setValue($request->getStr('date')))
->appendChild(
id(new AphrontFormSubmitControl())
->setValue(pht('Jump')));
$filter = new AphrontListFilterView();
$filter->appendChild($form);
$table = phutil_tag(
'table',
array(
'class' => 'phabricator-chat-log'
),
$out);
$log = phutil_tag(
'div',
array(
'class' => 'phabricator-chat-log-panel'
),
$table);
$jump_link = phutil_tag(
'a',
array(
'href' => '#latest'
),
pht('Jump to Bottom') . " \xE2\x96\xBE");
$jump = phutil_tag(
'div',
array(
'class' => 'phabricator-chat-log-jump'
),
$jump_link);
$jump_target = phutil_tag(
'div',
array(
'id' => 'latest'
));
$content = phutil_tag(
'div',
array(
'class' => 'phabricator-chat-log-wrap'
),
array(
$jump,
$pager_top,
$log,
$jump_target,
$pager_bottom,
));
return $this->buildApplicationPage(
array(
$crumbs,
$filter,
$content,
),
array(
'title' => pht('Channel Log'),
'device' => true,
));
}
/**
* From request parameters, figure out where we should jump to in the log.
* We jump to either a date or log ID, but load a few lines of context before
* it so the user can see the nearby conversation.
*/
private function getPagingParameters(
AphrontRequest $request,
PhabricatorChatLogQuery $query) {
$user = $request->getUser();
$at_id = $request->getInt('at');
$at_date = $request->getStr('date');
$context_log = null;
$map = array();
$query = clone $query;
$query->setLimit(8);
if ($at_id) {
// Jump to the log in question, and load a few lines of context before
// it.
$context_logs = $query
->setAfterID($at_id)
->execute();
$context_log = last($context_logs);
$map = array(
$at_id => true,
);
} else if ($at_date) {
$timestamp = PhabricatorTime::parseLocalTime($at_date, $user);
if ($timestamp) {
$context_logs = $query
->withMaximumEpoch($timestamp)
->execute();
$context_log = last($context_logs);
$target_log = head($context_logs);
if ($target_log) {
$map = array(
$target_log->getID() => true,
);
}
}
}
if ($context_log) {
$after = null;
$before = $context_log->getID() - 1;
} else {
$after = $request->getInt('after');
$before = $request->getInt('before');
}
return array($after, $before, $map);
}
}

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