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	diff --git a/src/applications/diffusion/controller/DiffusionBrowseController.php b/src/applications/diffusion/controller/DiffusionBrowseController.php
	index 6d5f320a29..2e1e71201d 100644
	--- a/src/applications/diffusion/controller/DiffusionBrowseController.php
	+++ b/src/applications/diffusion/controller/DiffusionBrowseController.php
	@@ -1,407 +1,315 @@
	<?php

	final class DiffusionBrowseController extends DiffusionController {

	public function processRequest() {
	$drequest = $this->diffusionRequest;
	$is_file = false;

	if ($this->getRequest()->getStr('before')) {
	$is_file = true;
	} else if ($this->getRequest()->getStr('grep') == '') {
	$results = DiffusionBrowseResultSet::newFromConduit(
	$this->callConduitWithDiffusionRequest(
	'diffusion.browsequery',
	array(
	'path' => $drequest->getPath(),
	'commit' => $drequest->getCommit(),
	)));
	$reason = $results->getReasonForEmptyResultSet();
	$is_file = ($reason == DiffusionBrowseResultSet::REASON_IS_FILE);
	}

	if ($is_file) {
	$controller = new DiffusionBrowseFileController($this->getRequest());
	$controller->setDiffusionRequest($drequest);
	$controller->setCurrentApplication($this->getCurrentApplication());
	return $this->delegateToController($controller);
	}

	$content = array();

	$content[] = $this->buildHeaderView($drequest);
	- $content[] = $this->buildActionView($drequest);
	+ $content[] = $this->buildBrowseActionView($drequest);
	$content[] = $this->buildPropertyView($drequest);

	$content[] = $this->renderSearchForm();

	if ($this->getRequest()->getStr('grep') != '') {
	$content[] = $this->renderSearchResults();
	} else {
	if (!$results->isValidResults()) {
	$empty_result = new DiffusionEmptyResultView();
	$empty_result->setDiffusionRequest($drequest);
	$empty_result->setDiffusionBrowseResultSet($results);
	$empty_result->setView($this->getRequest()->getStr('view'));
	$content[] = $empty_result;
	} else {
	$phids = array();
	foreach ($results->getPaths() as $result) {
	$data = $result->getLastCommitData();
	if ($data) {
	if ($data->getCommitDetail('authorPHID')) {
	$phids[$data->getCommitDetail('authorPHID')] = true;
	}
	}
	}

	$phids = array_keys($phids);
	$handles = $this->loadViewerHandles($phids);

	$browse_table = new DiffusionBrowseTableView();
	$browse_table->setDiffusionRequest($drequest);
	$browse_table->setHandles($handles);
	$browse_table->setPaths($results->getPaths());
	$browse_table->setUser($this->getRequest()->getUser());

	$browse_panel = new AphrontPanelView();
	$browse_panel->appendChild($browse_table);
	$browse_panel->setNoBackground();

	$content[] = $browse_panel;
	}

	$content[] = $this->buildOpenRevisions();

	$readme = $this->callConduitWithDiffusionRequest(
	'diffusion.readmequery',
	array(
	'paths' => $results->getPathDicts(),
	));
	if ($readme) {
	$box = new PHUIBoxView();
	$box->setShadow(true);
	$box->appendChild($readme);
	$box->addPadding(PHUI::PADDING_LARGE);
	$box->addMargin(PHUI::MARGIN_LARGE);

	$header = id(new PHUIHeaderView())
	->setHeader(pht('README'));

	$content[] = array(
	$header,
	$box,
	);
	}
	}

	$crumbs = $this->buildCrumbs(
	array(
	'branch' => true,
	'path' => true,
	'view' => 'browse',
	));

	return $this->buildApplicationPage(
	array(
	$crumbs,
	$content,
	),
	array(
	'device' => true,
	'title' => array(
	nonempty(basename($drequest->getPath()), '/'),
	$drequest->getRepository()->getCallsign().' Repository',
	),
	));
	}


	private function renderSearchForm() {
	$drequest = $this->getDiffusionRequest();
	$form = id(new AphrontFormView())
	->setUser($this->getRequest()->getUser())
	->setMethod('GET');

	switch ($drequest->getRepository()->getVersionControlSystem()) {
	case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
	$form->appendChild(pht('Search is not available in Subversion.'));
	break;

	default:
	$form
	->appendChild(
	id(new AphrontFormTextControl())
	->setLabel(pht('Search Here'))
	->setName('grep')
	->setValue($this->getRequest()->getStr('grep'))
	->setCaption(pht('Enter a regular expression.')))
	->appendChild(
	id(new AphrontFormSubmitControl())
	->setValue(pht('Search File Content')));
	break;
	}

	$filter = new AphrontListFilterView();
	$filter->appendChild($form);

	if (!strlen($this->getRequest()->getStr('grep'))) {
	$filter->setCollapsed(
	pht('Show Search'),
	pht('Hide Search'),
	pht('Search for file content in this directory.'),
	'#');
	}

	return $filter;
	}

	private function renderSearchResults() {
	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();
	$results = array();
	$no_data = pht('No results found.');

	$limit = 100;
	$page = $this->getRequest()->getInt('page', 0);
	$pager = new AphrontPagerView();
	$pager->setPageSize($limit);
	$pager->setOffset($page);
	$pager->setURI($this->getRequest()->getRequestURI(), 'page');

	try {

	$results = $this->callConduitWithDiffusionRequest(
	'diffusion.searchquery',
	array(
	'grep' => $this->getRequest()->getStr('grep'),
	'stableCommitName' => $drequest->getStableCommitName(),
	'path' => $drequest->getPath(),
	'limit' => $limit + 1,
	'offset' => $page));

	} catch (ConduitException $ex) {
	$err = $ex->getErrorDescription();
	if ($err != '') {
	return id(new AphrontErrorView())
	->setTitle(pht('Search Error'))
	->appendChild($err);
	}
	}

	$results = $pager->sliceResults($results);

	require_celerity_resource('syntax-highlighting-css');

	// NOTE: This can be wrong because we may find the string inside the
	// comment. But it's correct in most cases and highlighting the whole file
	// would be too expensive.
	$futures = array();
	$engine = PhabricatorSyntaxHighlighter::newEngine();
	foreach ($results as $result) {
	list($path, $line, $string) = $result;
	$futures["{$path}:{$line}"] = $engine->getHighlightFuture(
	$engine->getLanguageFromFilename($path),
	ltrim($string));
	}

	try {
	Futures($futures)->limit(8)->resolveAll();
	} catch (PhutilSyntaxHighlighterException $ex) {
	}

	$rows = array();
	foreach ($results as $result) {
	list($path, $line, $string) = $result;

	$href = $drequest->generateURI(array(
	'action' => 'browse',
	'path' => $path,
	'line' => $line,
	));

	try {
	$string = $futures["{$path}:{$line}"]->resolve();
	} catch (PhutilSyntaxHighlighterException $ex) {
	}

	$string = phutil_tag(
	'pre',
	array('class' => 'PhabricatorMonospaced'),
	$string);

	$path = Filesystem::readablePath($path, $drequest->getPath());

	$rows[] = array(
	phutil_tag('a', array('href' => $href), $path),
	$line,
	$string,
	);
	}

	$table = id(new AphrontTableView($rows))
	->setClassName('remarkup-code')
	->setHeaders(array(pht('Path'), pht('Line'), pht('String')))
	->setColumnClasses(array('', 'n', 'wide'))
	->setNoDataString($no_data);

	return id(new AphrontPanelView())
	->setNoBackground(true)
	->appendChild($table)
	->appendChild($pager);
	}


	private function markupText($text) {
	$engine = PhabricatorMarkupEngine::newDiffusionMarkupEngine();
	$engine->setConfig('viewer', $this->getRequest()->getUser());
	$text = $engine->markupText($text);

	$text = phutil_tag(
	'div',
	array(
	'class' => 'phabricator-remarkup',
	),
	$text);

	return $text;
	}

	private function buildHeaderView(DiffusionRequest $drequest) {
	$viewer = $this->getRequest()->getUser();

	$header = id(new PHUIHeaderView())
	->setUser($viewer)
	->setHeader($this->renderPathLinks($drequest))
	->setPolicyObject($drequest->getRepository());

	return $header;
	}

	- private function buildActionView(DiffusionRequest $drequest) {
	- $viewer = $this->getRequest()->getUser();
	-
	- $view = id(new PhabricatorActionListView())
	- ->setUser($viewer);
	-
	- $history_uri = $drequest->generateURI(
	- array(
	- 'action' => 'history',
	- ));
	-
	- $view->addAction(
	- id(new PhabricatorActionView())
	- ->setName(pht('View History'))
	- ->setHref($history_uri)
	- ->setIcon('perflab'));
	-
	- $behind_head = $drequest->getRawCommit();
	- $head_uri = $drequest->generateURI(
	- array(
	- 'commit' => '',
	- 'action' => 'browse',
	- ));
	- $view->addAction(
	- id(new PhabricatorActionView())
	- ->setName(pht('Jump to HEAD'))
	- ->setHref($head_uri)
	- ->setIcon('home')
	- ->setDisabled(!$behind_head));
	-
	- // TODO: Ideally, this should live in Owners and be event-triggered, but
	- // there's no reasonable object for it to react to right now.
	-
	- $owners_uri = id(new PhutilURI('/owners/view/search/'))
	- ->setQueryParams(
	- array(
	- 'repository' => $drequest->getCallsign(),
	- 'path' => '/'.$drequest->getPath(),
	- ));
	-
	- $view->addAction(
	- id(new PhabricatorActionView())
	- ->setName(pht('Find Owners'))
	- ->setHref((string)$owners_uri)
	- ->setIcon('preview'));
	-
	- return $view;
	- }
	-
	private function buildPropertyView(DiffusionRequest $drequest) {
	$viewer = $this->getRequest()->getUser();

	$view = id(new PhabricatorPropertyListView())
	->setUser($viewer);

	$stable_commit = $drequest->getStableCommitName();
	$callsign = $drequest->getRepository()->getCallsign();

	$view->addProperty(
	pht('Commit'),
	phutil_tag(
	'a',
	array(
	'href' => $drequest->generateURI(
	array(
	'action' => 'commit',
	'commit' => $stable_commit,
	)),
	),
	$drequest->getRepository()->formatCommitName($stable_commit)));

	if ($drequest->getTagContent()) {
	$view->addProperty(
	pht('Tag'),
	$drequest->getSymbolicCommit());

	$view->addSectionHeader(pht('Tag Content'));
	$view->addTextContent($this->markupText($drequest->getTagContent()));
	}

	return $view;
	}

	- private function renderPathLinks(DiffusionRequest $drequest) {
	- $path = $drequest->getPath();
	- $path_parts = array_filter(explode('/', trim($path, '/')));
	-
	- $links = array();
	- if ($path_parts) {
	- $links[] = phutil_tag(
	- 'a',
	- array(
	- 'href' => $drequest->generateURI(
	- array(
	- 'action' => 'browse',
	- 'path' => '',
	- )),
	- ),
	- 'r'.$drequest->getRepository()->getCallsign().'/');
	- $accum = '';
	- $last_key = last_key($path_parts);
	- foreach ($path_parts as $key => $part) {
	- $links[] = ' ';
	- $accum .= '/'.$part;
	- if ($key === $last_key) {
	- $links[] = $part;
	- } else {
	- $links[] = phutil_tag(
	- 'a',
	- array(
	- 'href' => $drequest->generateURI(
	- array(
	- 'action' => 'browse',
	- 'path' => $accum,
	- )),
	- ),
	- $part.'/');
	- }
	- }
	- } else {
	- $links[] = 'r'.$drequest->getRepository()->getCallsign().'/';
	- }
	-
	- return $links;
	- }
	-
	}
	diff --git a/src/applications/diffusion/controller/DiffusionBrowseFileController.php b/src/applications/diffusion/controller/DiffusionBrowseFileController.php
	index 3a09039a88..643ac2d3f2 100644
	--- a/src/applications/diffusion/controller/DiffusionBrowseFileController.php
	+++ b/src/applications/diffusion/controller/DiffusionBrowseFileController.php
	@@ -1,982 +1,1007 @@
	<?php

	final class DiffusionBrowseFileController extends DiffusionController {

	private $corpusType = 'text';

	private $lintCommit;
	private $lintMessages;

	public function processRequest() {

	$request = $this->getRequest();
	$drequest = $this->getDiffusionRequest();

	$before = $request->getStr('before');
	if ($before) {
	return $this->buildBeforeResponse($before);
	}

	$path = $drequest->getPath();

	$selected = $request->getStr('view');
	$preferences = $request->getUser()->loadPreferences();
	if (!$selected) {
	$selected = $preferences->getPreference(
	PhabricatorUserPreferences::PREFERENCE_DIFFUSION_VIEW,
	'highlighted');
	} else if ($request->isFormPost() && $selected != 'raw') {
	$preferences->setPreference(
	PhabricatorUserPreferences::PREFERENCE_DIFFUSION_VIEW,
	$selected);
	$preferences->save();

	return id(new AphrontRedirectResponse())
	->setURI($request->getRequestURI()->alter('view', $selected));
	}

	$needs_blame = ($selected == 'plainblame');
	if ($selected == 'blame' && $request->isAjax()) {
	$needs_blame = true;
	}

	$file_content = DiffusionFileContent::newFromConduit(
	$this->callConduitWithDiffusionRequest(
	'diffusion.filecontentquery',
	array(
	'commit' => $drequest->getCommit(),
	'path' => $drequest->getPath(),
	'needsBlame' => $needs_blame,
	)));
	$data = $file_content->getCorpus();

	if ($selected === 'raw') {
	return $this->buildRawResponse($path, $data);
	}

	$this->loadLintMessages();

	// Build the content of the file.
	$corpus = $this->buildCorpus(
	$selected,
	$file_content,
	$needs_blame,
	$drequest,
	$path,
	$data);

	if ($request->isAjax()) {
	return id(new AphrontAjaxResponse())->setContent($corpus);
	}

	require_celerity_resource('diffusion-source-css');

	- if ($this->corpusType == 'text') {
	- $view_select_panel = $this->renderViewSelectPanel($selected);
	- } else {
	- $view_select_panel = null;
	- }
	-
	// Render the page.
	$content = array();

	+ $content[] = $this->buildHeaderView($drequest);
	+ $view = $this->buildBrowseActionView($drequest);
	+ $content[] = $this->enrichActionView($view, $drequest, $selected);
	+ $content[] = $this->buildPropertyView($drequest);
	+
	$follow = $request->getStr('follow');
	if ($follow) {
	$notice = new AphrontErrorView();
	$notice->setSeverity(AphrontErrorView::SEVERITY_WARNING);
	$notice->setTitle(pht('Unable to Continue'));
	switch ($follow) {
	case 'first':
	$notice->appendChild(
	pht("Unable to continue tracing the history of this file because ".
	"this commit is the first commit in the repository."));
	break;
	case 'created':
	$notice->appendChild(
	pht("Unable to continue tracing the history of this file because ".
	"this commit created the file."));
	break;
	}
	$content[] = $notice;
	}

	$renamed = $request->getStr('renamed');
	if ($renamed) {
	$notice = new AphrontErrorView();
	$notice->setSeverity(AphrontErrorView::SEVERITY_NOTICE);
	$notice->setTitle(pht('File Renamed'));
	$notice->appendChild(
	pht("File history passes through a rename from '%s' to '%s'.",
	$drequest->getPath(), $renamed));
	$content[] = $notice;
	}

	- $content[] = $view_select_panel;
	$content[] = $corpus;
	$content[] = $this->buildOpenRevisions();

	- $nav = $this->buildSideNav('browse', true);
	- $nav->appendChild($content);
	$crumbs = $this->buildCrumbs(
	array(
	'branch' => true,
	'path' => true,
	'view' => 'browse',
	));
	- $nav->setCrumbs($crumbs);

	$basename = basename($this->getDiffusionRequest()->getPath());

	return $this->buildApplicationPage(
	- $nav,
	+ array(
	+ $crumbs,
	+ $content,
	+ ),
	array(
	'title' => $basename,
	));
	}

	private function loadLintMessages() {
	$drequest = $this->getDiffusionRequest();
	$branch = $drequest->loadBranch();

	if (!$branch \|\| !$branch->getLintCommit()) {
	return;
	}

	$this->lintCommit = $branch->getLintCommit();

	$conn = id(new PhabricatorRepository())->establishConnection('r');

	$where = '';
	if ($drequest->getLint()) {
	$where = qsprintf(
	$conn,
	'AND code = %s',
	$drequest->getLint());
	}

	$this->lintMessages = queryfx_all(
	$conn,
	'SELECT * FROM %T WHERE branchID = %d %Q AND path = %s',
	PhabricatorRepository::TABLE_LINTMESSAGE,
	$branch->getID(),
	$where,
	'/'.$drequest->getPath());
	}

	private function buildCorpus(
	$selected,
	DiffusionFileContent $file_content,
	$needs_blame,
	DiffusionRequest $drequest,
	$path,
	$data) {

	if (ArcanistDiffUtils::isHeuristicBinaryFile($data)) {
	$file = $this->loadFileForData($path, $data);
	$file_uri = $file->getBestURI();

	if ($file->isViewableImage()) {
	$this->corpusType = 'image';
	return $this->buildImageCorpus($file_uri);
	} else {
	$this->corpusType = 'binary';
	return $this->buildBinaryCorpus($file_uri, $data);
	}
	}

	switch ($selected) {
	case 'plain':
	$style =
	"margin: 1em 2em; width: 90%; height: 80em; font-family: monospace";
	$corpus = phutil_tag(
	'textarea',
	array(
	'style' => $style,
	),
	$file_content->getCorpus());

	break;

	case 'plainblame':
	$style =
	"margin: 1em 2em; width: 90%; height: 80em; font-family: monospace";
	$text_list = $file_content->getTextList();
	$rev_list = $file_content->getRevList();
	$blame_dict = $file_content->getBlameDict();

	$rows = array();
	foreach ($text_list as $k => $line) {
	$rev = $rev_list[$k];
	$author = $blame_dict[$rev]['author'];
	$rows[] =
	sprintf("%-10s %-20s %s", substr($rev, 0, 7), $author, $line);
	}

	$corpus = phutil_tag(
	'textarea',
	array(
	'style' => $style,
	),
	implode("\n", $rows));
	break;

	case 'highlighted':
	case 'blame':
	default:
	require_celerity_resource('syntax-highlighting-css');
	$text_list = $file_content->getTextList();
	$rev_list = $file_content->getRevList();
	$blame_dict = $file_content->getBlameDict();

	$text_list = implode("\n", $text_list);
	$text_list = PhabricatorSyntaxHighlighter::highlightWithFilename(
	$path,
	$text_list);
	$text_list = explode("\n", $text_list);

	$rows = $this->buildDisplayRows($text_list, $rev_list, $blame_dict,
	$needs_blame, $drequest, $selected);

	$corpus_table = javelin_tag(
	'table',
	array(
	'class' => "diffusion-source remarkup-code PhabricatorMonospaced",
	'sigil' => 'phabricator-source',
	),
	$rows);

	if ($this->getRequest()->isAjax()) {
	return $corpus_table;
	}

	$id = celerity_generate_unique_node_id();

	$projects = $drequest->loadArcanistProjects();
	$langs = array();
	foreach ($projects as $project) {
	$ls = $project->getSymbolIndexLanguages();
	if (!$ls) {
	continue;
	}
	$dep_projects = $project->getSymbolIndexProjects();
	$dep_projects[] = $project->getPHID();
	foreach ($ls as $lang) {
	if (!isset($langs[$lang])) {
	$langs[$lang] = array();
	}
	$langs[$lang] += $dep_projects + array($project);
	}
	}

	$lang = last(explode('.', $drequest->getPath()));

	if (isset($langs[$lang])) {
	Javelin::initBehavior(
	'repository-crossreference',
	array(
	'container' => $id,
	'lang' => $lang,
	'projects' => $langs[$lang],
	));
	}

	$corpus = phutil_tag(
	'div',
	array(
	'style' => 'padding: 0 2em;',
	'id' => $id,
	),
	$corpus_table);

	Javelin::initBehavior('load-blame', array('id' => $id));

	break;
	}

	return $corpus;
	}

	- private function renderViewSelectPanel($selected) {
	+ private function enrichActionView(
	+ PhabricatorActionListView $view,
	+ DiffusionRequest $drequest,
	+ $selected) {
	+
	+ $viewer = $this->getRequest()->getUser();
	+ $base_uri = $this->getRequest()->getRequestURI();
	+
	$toggle_blame = array(
	'highlighted' => 'blame',
	'blame' => 'highlighted',
	'plain' => 'plainblame',
	'plainblame' => 'plain',
	'raw' => 'raw', // not a real case.
	);
	+
	$toggle_highlight = array(
	'highlighted' => 'plain',
	'blame' => 'plainblame',
	'plain' => 'highlighted',
	'plainblame' => 'blame',
	'raw' => 'raw', // not a real case.
	);

	- $user = $this->getRequest()->getUser();
	- $base_uri = $this->getRequest()->getRequestURI();
	-
	$blame_on = ($selected == 'blame' \|\| $selected == 'plainblame');
	if ($blame_on) {
	$blame_text = pht('Disable Blame');
	+ $blame_icon = 'blame-grey';
	} else {
	$blame_text = pht('Enable Blame');
	+ $blame_icon = 'blame';
	}

	- $blame_button = $this->createViewAction(
	- $blame_text,
	- $base_uri->alter('view', $toggle_blame[$selected]),
	- $user);
	+ $view->addAction(
	+ id(new PhabricatorActionView())
	+ ->setName($blame_text)
	+ ->setHref($base_uri->alter('view', $toggle_blame[$selected]))
	+ ->setIcon($blame_icon)
	+ ->setUser($viewer)
	+ ->setRenderAsForm(true));


	$highlight_on = ($selected == 'blame' \|\| $selected == 'highlighted');
	if ($highlight_on) {
	$highlight_text = pht('Disable Highlighting');
	+ $highlight_icon = 'highlight-grey';
	} else {
	$highlight_text = pht('Enable Highlighting');
	+ $highlight_icon = 'highlight';
	}
	- $highlight_button = $this->createViewAction(
	- $highlight_text,
	- $base_uri->alter('view', $toggle_highlight[$selected]),
	- $user);
	+
	+ $view->addAction(
	+ id(new PhabricatorActionView())
	+ ->setName($highlight_text)
	+ ->setHref($base_uri->alter('view', $toggle_highlight[$selected]))
	+ ->setIcon($highlight_icon)
	+ ->setUser($viewer)
	+ ->setRenderAsForm(true));


	$href = null;
	if ($this->getRequest()->getStr('lint') !== null) {
	$lint_text = pht('Hide %d Lint Message(s)', count($this->lintMessages));
	$href = $base_uri->alter('lint', null);

	} else if ($this->lintCommit === null) {
	$lint_text = pht('Lint not Available');
	-
	} else {
	$lint_text = pht(
	'Show %d Lint Message(s)',
	count($this->lintMessages));
	$href = $this->getDiffusionRequest()->generateURI(array(
	'action' => 'browse',
	'commit' => $this->lintCommit,
	))->alter('lint', '');
	}

	- $lint_button = $this->createViewAction(
	- $lint_text,
	- $href,
	- $user);
	-
	- if (!$href) {
	- $lint_button->setDisabled(true);
	- }
	-
	+ $view->addAction(
	+ id(new PhabricatorActionView())
	+ ->setName($lint_text)
	+ ->setHref($href)
	+ ->setIcon('warning')
	+ ->setDisabled(!$href));

	- $raw_button = $this->createViewAction(
	- pht('View Raw File'),
	- $base_uri->alter('view', 'raw'),
	- $user,
	- 'file');
	+ $view->addAction(
	+ id(new PhabricatorActionView())
	+ ->setName(pht('View Raw File'))
	+ ->setHref($base_uri->alter('view', 'raw'))
	+ ->setIcon('file'));

	- $edit_button = $this->createEditAction();
	+ $view->addAction($this->createEditAction());

	- return id(new PhabricatorActionListView())
	- ->setUser($user)
	- ->setObjectURI($this->getRequest()->getRequestURI())
	- ->addAction($blame_button)
	- ->addAction($highlight_button)
	- ->addAction($lint_button)
	- ->addAction($raw_button)
	- ->addAction($edit_button);
	- }
	-
	- private function createViewAction(
	- $localized_text,
	- $href,
	- $user,
	- $icon = null) {
	-
	- return id(new PhabricatorActionView())
	- ->setName($localized_text)
	- ->setIcon($icon)
	- ->setUser($user)
	- ->setRenderAsForm(true)
	- ->setHref($href);
	+ return $view;
	}

	private function createEditAction() {
	$request = $this->getRequest();
	$user = $request->getUser();

	$drequest = $this->getDiffusionRequest();

	$repository = $drequest->getRepository();
	$path = $drequest->getPath();
	$line = nonempty((int)$drequest->getLine(), 1);

	$callsign = $repository->getCallsign();
	$editor_link = $user->loadEditorLink($path, $line, $callsign);

	$action = id(new PhabricatorActionView())
	->setName(pht('Open in Editor'))
	->setIcon('edit');

	$action->setHref($editor_link);
	$action->setDisabled(!$editor_link);

	return $action;
	}

	private function buildDisplayRows(
	array $text_list,
	array $rev_list,
	array $blame_dict,
	$needs_blame,
	DiffusionRequest $drequest,
	$selected) {

	$handles = array();
	if ($blame_dict) {
	$epoch_list = ipull(ifilter($blame_dict, 'epoch'), 'epoch');
	$epoch_min = min($epoch_list);
	$epoch_max = max($epoch_list);
	$epoch_range = ($epoch_max - $epoch_min) + 1;

	$author_phids = ipull(ifilter($blame_dict, 'authorPHID'), 'authorPHID');
	$handles = $this->loadViewerHandles($author_phids);
	}

	$line_arr = array();
	$line_str = $drequest->getLine();
	$ranges = explode(',', $line_str);
	foreach ($ranges as $range) {
	if (strpos($range, '-') !== false) {
	list($min, $max) = explode('-', $range, 2);
	$line_arr[] = array(
	'min' => min($min, $max),
	'max' => max($min, $max),
	);
	} else if (strlen($range)) {
	$line_arr[] = array(
	'min' => $range,
	'max' => $range,
	);
	}
	}

	$display = array();

	$line_number = 1;
	$last_rev = null;
	$color = null;
	foreach ($text_list as $k => $line) {
	$display_line = array(
	'epoch' => null,
	'commit' => null,
	'author' => null,
	'target' => null,
	'highlighted' => null,
	'line' => $line_number,
	'data' => $line,
	);

	if ($selected == 'blame') {
	// If the line's rev is same as the line above, show empty content
	// with same color; otherwise generate blame info. The newer a change
	// is, the more saturated the color.

	$rev = idx($rev_list, $k, $last_rev);

	if ($last_rev == $rev) {
	$display_line['color'] = $color;
	} else {
	$blame = $blame_dict[$rev];

	if (!isset($blame['epoch'])) {
	$color = '#ffd'; // Render as warning.
	} else {
	$color_ratio = ($blame['epoch'] - $epoch_min) / $epoch_range;
	$color_value = 0xE6 * (1.0 - $color_ratio);
	$color = sprintf(
	'#%02x%02x%02x',
	$color_value,
	0xF6,
	$color_value);
	}

	$display_line['epoch'] = idx($blame, 'epoch');
	$display_line['color'] = $color;
	$display_line['commit'] = $rev;

	$author_phid = idx($blame, 'authorPHID');
	if ($author_phid && $handles[$author_phid]) {
	$author_link = $handles[$author_phid]->renderLink();
	} else {
	$author_link = phutil_tag(
	'span',
	array(
	),
	$blame['author']);
	}
	$display_line['author'] = $author_link;

	$last_rev = $rev;
	}
	}

	if ($line_arr) {
	if ($line_number == $line_arr[0]['min']) {
	$display_line['target'] = true;
	}
	foreach ($line_arr as $range) {
	if ($line_number >= $range['min'] &&
	$line_number <= $range['max']) {
	$display_line['highlighted'] = true;
	}
	}
	}

	$display[] = $display_line;
	++$line_number;
	}

	$commits = array_filter(ipull($display, 'commit'));
	if ($commits) {
	$commits = id(new PhabricatorAuditCommitQuery())
	->withIdentifiers($drequest->getRepository()->getID(), $commits)
	->needCommitData(true)
	->execute();
	$commits = mpull($commits, null, 'getCommitIdentifier');
	}

	$revision_ids = id(new DifferentialRevision())
	->loadIDsByCommitPHIDs(mpull($commits, 'getPHID'));
	$revisions = array();
	if ($revision_ids) {
	$revisions = id(new DifferentialRevision())->loadAllWhere(
	'id IN (%Ld)',
	$revision_ids);
	}

	$request = $this->getRequest();
	$user = $request->getUser();

	Javelin::initBehavior('phabricator-oncopy', array());

	$engine = null;
	$inlines = array();
	if ($this->getRequest()->getStr('lint') !== null && $this->lintMessages) {
	$engine = new PhabricatorMarkupEngine();
	$engine->setViewer($user);

	foreach ($this->lintMessages as $message) {
	$inline = id(new PhabricatorAuditInlineComment())
	->setID($message['id'])
	->setSyntheticAuthor(
	ArcanistLintSeverity::getStringForSeverity($message['severity']).
	' '.$message['code'].' ('.$message['name'].')')
	->setLineNumber($message['line'])
	->setContent($message['description']);
	$inlines[$message['line']][] = $inline;

	$engine->addObject(
	$inline,
	PhabricatorInlineCommentInterface::MARKUP_FIELD_BODY);
	}

	$engine->process();
	require_celerity_resource('differential-changeset-view-css');
	}

	$rows = $this->renderInlines(
	idx($inlines, 0, array()),
	($selected == 'blame'),
	$engine);

	foreach ($display as $line) {

	$line_href = $drequest->generateURI(
	array(
	'action' => 'browse',
	'line' => $line['line'],
	'stable' => true,
	));

	$blame = array();
	$style = null;
	if (array_key_exists('color', $line)) {
	if ($line['color']) {
	$style = 'background: '.$line['color'].';';
	}

	$before_link = null;
	$commit_link = null;
	$revision_link = null;
	if (idx($line, 'commit')) {
	$commit = $line['commit'];

	$summary = 'Unknown';
	if (idx($commits, $commit)) {
	$summary = $commits[$commit]->getCommitData()->getSummary();
	}

	$tooltip = phabricator_date(
	$line['epoch'],
	$user)." \xC2\xB7 ".$summary;

	Javelin::initBehavior('phabricator-tooltips', array());
	require_celerity_resource('aphront-tooltip-css');

	$commit_link = javelin_tag(
	'a',
	array(
	'href' => $drequest->generateURI(
	array(
	'action' => 'commit',
	'commit' => $line['commit'],
	)),
	'sigil' => 'has-tooltip',
	'meta' => array(
	'tip' => $tooltip,
	'align' => 'E',
	'size' => 600,
	),
	),
	phutil_utf8_shorten($line['commit'], 9, ''));

	$revision_id = null;
	if (idx($commits, $commit)) {
	$revision_id = idx($revision_ids, $commits[$commit]->getPHID());
	}

	if ($revision_id) {
	$revision = idx($revisions, $revision_id);
	if (!$revision) {
	$tooltip = pht('(Invalid revision)');
	} else {
	$tooltip =
	phabricator_date($revision->getDateModified(), $user).
	" \xC2\xB7 ".
	$revision->getTitle();
	}
	$revision_link = javelin_tag(
	'a',
	array(
	'href' => '/D'.$revision_id,
	'sigil' => 'has-tooltip',
	'meta' => array(
	'tip' => $tooltip,
	'align' => 'E',
	'size' => 600,
	),
	),
	'D'.$revision_id);
	}

	$uri = $line_href->alter('before', $commit);
	$before_link = javelin_tag(
	'a',
	array(
	'href' => $uri->setQueryParam('view', 'blame'),
	'sigil' => 'has-tooltip',
	'meta' => array(
	'tip' => pht('Skip Past This Commit'),
	'align' => 'E',
	'size' => 300,
	),
	),
	"\xC2\xAB");
	}

	$blame[] = phutil_tag(
	'th',
	array(
	'class' => 'diffusion-blame-link',
	'style' => $style,
	),
	$before_link);

	$blame[] = phutil_tag(
	'th',
	array(
	'class' => 'diffusion-rev-link',
	'style' => $style,
	),
	$commit_link);

	$blame[] = phutil_tag(
	'th',
	array(
	'class' => 'diffusion-rev-link',
	'style' => $style,
	),
	$revision_link);

	$blame[] = phutil_tag(
	'th',
	array(
	'class' => 'diffusion-author-link',
	'style' => $style,
	),
	idx($line, 'author'));
	}

	$line_link = phutil_tag(
	'a',
	array(
	'href' => $line_href,
	),
	$line['line']);

	$blame[] = javelin_tag(
	'th',
	array(
	'class' => 'diffusion-line-link',
	'sigil' => 'phabricator-source-line',
	'style' => $style,
	),
	$line_link);

	Javelin::initBehavior('phabricator-line-linker');

	if ($line['target']) {
	Javelin::initBehavior(
	'diffusion-jump-to',
	array(
	'target' => 'scroll_target',
	));
	$anchor_text = phutil_tag(
	'a',
	array(
	'id' => 'scroll_target',
	),
	'');
	} else {
	$anchor_text = null;
	}

	$blame[] = phutil_tag(
	'td',
	array(
	),
	array(
	$anchor_text,

	// NOTE: See phabricator-oncopy behavior.
	"\xE2\x80\x8B",

	// TODO: [HTML] Not ideal.
	phutil_safe_html($line['data']),
	));

	$rows[] = phutil_tag(
	'tr',
	array(
	'class' => ($line['highlighted'] ?
	'phabricator-source-highlight' :
	null),
	),
	$blame);

	$rows = array_merge($rows, $this->renderInlines(
	idx($inlines, $line['line'], array()),
	($selected == 'blame'),
	$engine));
	}

	return $rows;
	}

	private function renderInlines(array $inlines, $needs_blame, $engine) {
	$rows = array();
	foreach ($inlines as $inline) {
	$inline_view = id(new DifferentialInlineCommentView())
	->setMarkupEngine($engine)
	->setInlineComment($inline)
	->render();
	$row = array_fill(0, ($needs_blame ? 5 : 1), phutil_tag('th'));
	$row[] = phutil_tag('td', array(), $inline_view);
	$rows[] = phutil_tag('tr', array('class' => 'inline'), $row);
	}
	return $rows;
	}

	private function loadFileForData($path, $data) {
	return PhabricatorFile::buildFromFileDataOrHash(
	$data,
	array(
	'name' => basename($path),
	'ttl' => time() + 60 * 60 * 24,
	));
	}

	private function buildRawResponse($path, $data) {
	$file = $this->loadFileForData($path, $data);
	return id(new AphrontRedirectResponse())->setURI($file->getBestURI());
	}

	private function buildImageCorpus($file_uri) {
	$properties = new PhabricatorPropertyListView();

	$properties->addProperty(
	pht('Image'),
	phutil_tag(
	'img',
	array(
	'src' => $file_uri,
	)));

	$actions = id(new PhabricatorActionListView())
	->setUser($this->getRequest()->getUser())
	->setObjectURI($this->getRequest()->getRequestURI())
	->addAction($this->createEditAction());

	return array($actions, $properties);
	}

	private function buildBinaryCorpus($file_uri, $data) {
	$properties = new PhabricatorPropertyListView();

	$size = strlen($data);
	$properties->addTextContent(
	pht(
	'This is a binary file. It is %s byte(s) in length.',
	new PhutilNumber($size)));

	$actions = id(new PhabricatorActionListView())
	->setUser($this->getRequest()->getUser())
	->setObjectURI($this->getRequest()->getRequestURI())
	->addAction($this->createEditAction())
	->addAction(
	id(new PhabricatorActionView())
	->setName(pht('Download Binary File...'))
	->setIcon('download')
	->setHref($file_uri));

	return array($actions, $properties);

	}

	private function buildBeforeResponse($before) {
	$request = $this->getRequest();
	$drequest = $this->getDiffusionRequest();

	// NOTE: We need to get the grandparent so we can capture filename changes
	// in the parent.

	$parent = $this->loadParentRevisionOf($before);
	$old_filename = null;
	$was_created = false;
	if ($parent) {
	$grandparent = $this->loadParentRevisionOf(
	$parent->getCommitIdentifier());

	if ($grandparent) {
	$rename_query = new DiffusionRenameHistoryQuery();
	$rename_query->setRequest($drequest);
	$rename_query->setOldCommit($grandparent->getCommitIdentifier());
	$rename_query->setViewer($request->getUser());
	$old_filename = $rename_query->loadOldFilename();
	$was_created = $rename_query->getWasCreated();
	}
	}

	$follow = null;
	if ($was_created) {
	// If the file was created in history, that means older commits won't
	// have it. Since we know it existed at 'before', it must have been
	// created then; jump there.
	$target_commit = $before;
	$follow = 'created';
	} else if ($parent) {
	// If we found a parent, jump to it. This is the normal case.
	$target_commit = $parent->getCommitIdentifier();
	} else {
	// If there's no parent, this was probably created in the initial commit?
	// And the "was_created" check will fail because we can't identify the
	// grandparent. Keep the user at 'before'.
	$target_commit = $before;
	$follow = 'first';
	}

	$path = $drequest->getPath();
	$renamed = null;
	if ($old_filename !== null &&
	$old_filename !== '/'.$path) {
	$renamed = $path;
	$path = $old_filename;
	}

	$line = null;
	// If there's a follow error, drop the line so the user sees the message.
	if (!$follow) {
	$line = $this->getBeforeLineNumber($target_commit);
	}

	$before_uri = $drequest->generateURI(
	array(
	'action' => 'browse',
	'commit' => $target_commit,
	'line' => $line,
	'path' => $path,
	));

	$before_uri->setQueryParams($request->getRequestURI()->getQueryParams());
	$before_uri = $before_uri->alter('before', null);
	$before_uri = $before_uri->alter('renamed', $renamed);
	$before_uri = $before_uri->alter('follow', $follow);

	return id(new AphrontRedirectResponse())->setURI($before_uri);
	}

	private function getBeforeLineNumber($target_commit) {
	$drequest = $this->getDiffusionRequest();

	$line = $drequest->getLine();
	if (!$line) {
	return null;
	}

	$raw_diff = $this->callConduitWithDiffusionRequest(
	'diffusion.rawdiffquery',
	array(
	'commit' => $drequest->getCommit(),
	'path' => $drequest->getPath(),
	'againstCommit' => $target_commit));
	$old_line = 0;
	$new_line = 0;

	foreach (explode("\n", $raw_diff) as $text) {
	if ($text[0] == '-' \|\| $text[0] == ' ') {
	$old_line++;
	}
	if ($text[0] == '+' \|\| $text[0] == ' ') {
	$new_line++;
	}
	if ($new_line == $line) {
	return $old_line;
	}
	}

	// We didn't find the target line.
	return $line;
	}

	private function loadParentRevisionOf($commit) {
	$drequest = $this->getDiffusionRequest();
	$user = $this->getRequest()->getUser();

	$before_req = DiffusionRequest::newFromDictionary(
	array(
	'user' => $user,
	'repository' => $drequest->getRepository(),
	'commit' => $commit,
	));

	$parents = DiffusionQuery::callConduitWithDiffusionRequest(
	$user,
	$before_req,
	'diffusion.commitparentsquery',
	array(
	'commit' => $commit));

	return head($parents);
	}

	+ private function buildHeaderView(DiffusionRequest $drequest) {
	+ $viewer = $this->getRequest()->getUser();
	+
	+ $header = id(new PHUIHeaderView())
	+ ->setUser($viewer)
	+ ->setHeader($this->renderPathLinks($drequest))
	+ ->setPolicyObject($drequest->getRepository());
	+
	+ return $header;
	+ }
	+
	+ private function buildPropertyView(DiffusionRequest $drequest) {
	+ $viewer = $this->getRequest()->getUser();
	+
	+ $view = id(new PhabricatorPropertyListView())
	+ ->setUser($viewer);
	+
	+ $stable_commit = $drequest->getStableCommitName();
	+ $callsign = $drequest->getRepository()->getCallsign();
	+
	+ $view->addProperty(
	+ pht('Commit'),
	+ phutil_tag(
	+ 'a',
	+ array(
	+ 'href' => $drequest->generateURI(
	+ array(
	+ 'action' => 'commit',
	+ 'commit' => $stable_commit,
	+ )),
	+ ),
	+ $drequest->getRepository()->formatCommitName($stable_commit)));
	+
	+ return $view;
	+ }
	+
	}
	diff --git a/src/applications/diffusion/controller/DiffusionController.php b/src/applications/diffusion/controller/DiffusionController.php
	index fbb7868969..30058ae55d 100644
	--- a/src/applications/diffusion/controller/DiffusionController.php
	+++ b/src/applications/diffusion/controller/DiffusionController.php
	@@ -1,347 +1,441 @@
	<?php

	abstract class DiffusionController extends PhabricatorController {

	protected $diffusionRequest;

	public function willProcessRequest(array $data) {
	if (isset($data['callsign'])) {
	$drequest = DiffusionRequest::newFromAphrontRequestDictionary(
	$data,
	$this->getRequest());
	$this->diffusionRequest = $drequest;
	}
	}

	public function setDiffusionRequest(DiffusionRequest $request) {
	$this->diffusionRequest = $request;
	return $this;
	}

	protected function getDiffusionRequest() {
	if (!$this->diffusionRequest) {
	throw new Exception("No Diffusion request object!");
	}
	return $this->diffusionRequest;
	}

	public function buildStandardPageResponse($view, array $data) {

	$page = $this->buildStandardPageView();

	$page->setApplicationName(pht('Diffusion'));
	$page->setBaseURI('/diffusion/');
	$page->setTitle(idx($data, 'title'));
	$page->setGlyph("\xE2\x89\x88");
	$page->setSearchDefaultScope(PhabricatorSearchScope::SCOPE_COMMITS);

	$page->appendChild($view);

	$response = new AphrontWebpageResponse();
	return $response->setContent($page->render());
	}

	final protected function buildSideNav($selected, $has_change_view) {
	$nav = new AphrontSideNavFilterView();
	$nav->setBaseURI(new PhutilURI(''));

	$navs = array(
	'history' => pht('History View'),
	'browse' => pht('Browse View'),
	'change' => pht('Change View'),
	);

	if (!$has_change_view) {
	unset($navs['change']);
	}

	$drequest = $this->getDiffusionRequest();
	$branch = $drequest->loadBranch();

	if ($branch && $branch->getLintCommit()) {
	$navs['lint'] = pht('Lint View');
	}

	$selected_href = null;
	foreach ($navs as $action => $name) {
	$href = $drequest->generateURI(
	array(
	'action' => $action,
	));
	if ($action == $selected) {
	$selected_href = $href;
	}

	$nav->addFilter($href, $name, $href);
	}
	$nav->selectFilter($selected_href, null);

	// TODO: URI encoding might need to be sorted out for this link.

	$nav->addFilter(
	'',
	pht("Search Owners \xE2\x86\x97"),
	'/owners/view/search/'.
	'?repository='.phutil_escape_uri($drequest->getCallsign()).
	'&path='.phutil_escape_uri('/'.$drequest->getPath()));

	return $nav;
	}

	public function buildCrumbs(array $spec = array()) {
	$crumbs = $this->buildApplicationCrumbs();
	$crumb_list = $this->buildCrumbList($spec);
	foreach ($crumb_list as $crumb) {
	$crumbs->addCrumb($crumb);
	}
	return $crumbs;
	}

	protected function buildOpenRevisions() {
	$user = $this->getRequest()->getUser();

	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();
	$path = $drequest->getPath();

	$path_map = id(new DiffusionPathIDQuery(array($path)))->loadPathIDs();
	$path_id = idx($path_map, $path);
	if (!$path_id) {
	return null;
	}

	$revisions = id(new DifferentialRevisionQuery())
	->setViewer($user)
	->withPath($repository->getID(), $path_id)
	->withStatus(DifferentialRevisionQuery::STATUS_OPEN)
	->setOrder(DifferentialRevisionQuery::ORDER_PATH_MODIFIED)
	->setLimit(10)
	->needRelationships(true)
	->execute();

	if (!$revisions) {
	return null;
	}

	$view = id(new DifferentialRevisionListView())
	->setRevisions($revisions)
	->setFields(DifferentialRevisionListView::getDefaultFields($user))
	->setUser($user)
	->loadAssets();

	$phids = $view->getRequiredHandlePHIDs();
	$handles = $this->loadViewerHandles($phids);
	$view->setHandles($handles);

	$header = id(new PHUIHeaderView())
	->setHeader(pht('Pending Differential Revisions'));

	return array(
	$header,
	$view,
	);
	}

	private function buildCrumbList(array $spec = array()) {

	$spec = $spec + array(
	'commit' => null,
	'tags' => null,
	'branches' => null,
	'view' => null,
	);

	$crumb_list = array();

	// On the home page, we don't have a DiffusionRequest.
	if ($this->diffusionRequest) {
	$drequest = $this->getDiffusionRequest();
	$repository = $drequest->getRepository();
	} else {
	$drequest = null;
	$repository = null;
	}

	if (!$repository) {
	return $crumb_list;
	}

	$callsign = $repository->getCallsign();
	$repository_name = 'r'.$callsign;

	if (!$spec['commit'] && !$spec['tags'] && !$spec['branches']) {
	$branch_name = $drequest->getBranch();
	if ($branch_name) {
	$repository_name .= ' ('.$branch_name.')';
	}
	}

	$crumb = id(new PhabricatorCrumbView())
	->setName($repository_name);
	if (!$spec['view'] && !$spec['commit'] &&
	!$spec['tags'] && !$spec['branches']) {
	$crumb_list[] = $crumb;
	return $crumb_list;
	}
	$crumb->setHref("/diffusion/{$callsign}/");
	$crumb_list[] = $crumb;

	$raw_commit = $drequest->getRawCommit();

	if ($spec['tags']) {
	$crumb = new PhabricatorCrumbView();
	if ($spec['commit']) {
	$crumb->setName(
	pht("Tags for %s", 'r'.$callsign.$raw_commit));
	$crumb->setHref($drequest->generateURI(
	array(
	'action' => 'commit',
	'commit' => $raw_commit,
	)));
	} else {
	$crumb->setName(pht('Tags'));
	}
	$crumb_list[] = $crumb;
	return $crumb_list;
	}

	if ($spec['branches']) {
	$crumb = id(new PhabricatorCrumbView())
	->setName(pht('Branches'));
	$crumb_list[] = $crumb;
	return $crumb_list;
	}

	if ($spec['commit']) {
	$crumb = id(new PhabricatorCrumbView())
	->setName("r{$callsign}{$raw_commit}")
	->setHref("r{$callsign}{$raw_commit}");
	$crumb_list[] = $crumb;
	return $crumb_list;
	}

	$crumb = new PhabricatorCrumbView();
	$view = $spec['view'];

	$path = null;
	if (isset($spec['path'])) {
	$path = $drequest->getPath();
	}

	if ($raw_commit) {
	$commit_link = DiffusionView::linkCommit(
	$repository,
	$raw_commit);
	} else {
	$commit_link = '';
	}

	switch ($view) {
	case 'history':
	$view_name = pht('History');
	break;
	case 'browse':
	$view_name = pht('Browse');
	break;
	case 'lint':
	$view_name = pht('Lint');
	break;
	case 'change':
	$view_name = pht('Change');
	$crumb_list[] = $crumb->setName(
	hsprintf('%s (%s)', $path, $commit_link));
	return $crumb_list;
	}

	$uri_params = array(
	'action' => $view,
	);

	$crumb = id(new PhabricatorCrumbView())
	->setName($view_name);

	if ($view == 'browse') {
	$crumb_list[] = $crumb;
	return $crumb_list;
	}

	$crumb->setHref($drequest->generateURI(
	array(
	'path' => '',
	) + $uri_params));
	$crumb_list[] = $crumb;

	$path_parts = explode('/', $path);
	do {
	$last = array_pop($path_parts);
	} while (count($path_parts) && $last == '');

	$path_sections = array();
	$thus_far = '';
	foreach ($path_parts as $path_part) {
	$thus_far .= $path_part.'/';
	$path_sections[] = '/';
	$path_sections[] = phutil_tag(
	'a',
	array(
	'href' => $drequest->generateURI(
	array(
	'path' => $thus_far,
	) + $uri_params),
	),
	$path_part);
	}

	$path_sections[] = '/'.$last;

	$crumb_list[] = id(new PhabricatorCrumbView())
	->setName($path_sections);

	$last_crumb = array_pop($crumb_list);

	if ($raw_commit) {
	$jump_link = phutil_tag(
	'a',
	array(
	'href' => $drequest->generateURI(
	array(
	'commit' => '',
	) + $uri_params),
	),
	pht('Jump to HEAD'));

	$name = $last_crumb->getName();
	$name = hsprintf('%s @ %s (%s)', $name, $commit_link, $jump_link);
	$last_crumb->setName($name);
	} else if ($spec['view'] != 'lint') {
	$name = $last_crumb->getName();
	$name = hsprintf('%s @ HEAD', $name);
	$last_crumb->setName($name);
	}

	$crumb_list[] = $last_crumb;

	return $crumb_list;
	}

	protected function callConduitWithDiffusionRequest(
	$method,
	array $params = array()) {

	$user = $this->getRequest()->getUser();
	$drequest = $this->getDiffusionRequest();

	return DiffusionQuery::callConduitWithDiffusionRequest(
	$user,
	$drequest,
	$method,
	$params);
	}

	protected function getRepositoryControllerURI(
	PhabricatorRepository $repository,
	$path) {
	return $this->getApplicationURI($repository->getCallsign().'/'.$path);
	}

	+
	+ protected function buildBrowseActionView(DiffusionRequest $drequest) {
	+ $viewer = $this->getRequest()->getUser();
	+
	+ $view = id(new PhabricatorActionListView())
	+ ->setUser($viewer);
	+
	+ $history_uri = $drequest->generateURI(
	+ array(
	+ 'action' => 'history',
	+ ));
	+
	+ $view->addAction(
	+ id(new PhabricatorActionView())
	+ ->setName(pht('View History'))
	+ ->setHref($history_uri)
	+ ->setIcon('perflab'));
	+
	+ $behind_head = $drequest->getRawCommit();
	+ $head_uri = $drequest->generateURI(
	+ array(
	+ 'commit' => '',
	+ 'action' => 'browse',
	+ ));
	+ $view->addAction(
	+ id(new PhabricatorActionView())
	+ ->setName(pht('Jump to HEAD'))
	+ ->setHref($head_uri)
	+ ->setIcon('home')
	+ ->setDisabled(!$behind_head));
	+
	+ // TODO: Ideally, this should live in Owners and be event-triggered, but
	+ // there's no reasonable object for it to react to right now.
	+
	+ $owners_uri = id(new PhutilURI('/owners/view/search/'))
	+ ->setQueryParams(
	+ array(
	+ 'repository' => $drequest->getCallsign(),
	+ 'path' => '/'.$drequest->getPath(),
	+ ));
	+
	+ $view->addAction(
	+ id(new PhabricatorActionView())
	+ ->setName(pht('Find Owners'))
	+ ->setHref((string)$owners_uri)
	+ ->setIcon('preview'));
	+
	+ return $view;
	+ }
	+
	+ protected function renderPathLinks(DiffusionRequest $drequest) {
	+ $path = $drequest->getPath();
	+ $path_parts = array_filter(explode('/', trim($path, '/')));
	+
	+ $links = array();
	+ if ($path_parts) {
	+ $links[] = phutil_tag(
	+ 'a',
	+ array(
	+ 'href' => $drequest->generateURI(
	+ array(
	+ 'action' => 'browse',
	+ 'path' => '',
	+ )),
	+ ),
	+ 'r'.$drequest->getRepository()->getCallsign().'/');
	+ $accum = '';
	+ $last_key = last_key($path_parts);
	+ foreach ($path_parts as $key => $part) {
	+ $links[] = ' ';
	+ $accum .= '/'.$part;
	+ if ($key === $last_key) {
	+ $links[] = $part;
	+ } else {
	+ $links[] = phutil_tag(
	+ 'a',
	+ array(
	+ 'href' => $drequest->generateURI(
	+ array(
	+ 'action' => 'browse',
	+ 'path' => $accum,
	+ )),
	+ ),
	+ $part.'/');
	+ }
	+ }
	+ } else {
	+ $links[] = 'r'.$drequest->getRepository()->getCallsign().'/';
	+ }
	+
	+ return $links;
	+ }
	+
	}
	+

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