Add optional keystroke support for AphrontPagerView

Summary: This is sort of silly but maybe useful? The real problem is that there
are like 500k conduit call logs and the real solution to that is better
filtering options, but this seems sort of okay.

Test Plan: Used "[" and "]" to switch between pages on the conduit call log.

Reviewers: btrahan, jungejason, nh, aran

Reviewed By: nh

CC: aran, nh, epriestley

Differential Revision: 1145

src/__celerity_resource_map__.php

@@ -248,6 +248,17 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/js/javelin/lib/behavior.js',
   ),
+  0 =>
+  array(
+    'uri' => '/res/b6096fdd/rsrc/js/javelin/lib/__tests__/URI.js',
+    'type' => 'js',
+    'requires' =>
+    array(
+      0 => 'javelin-uri',
+      1 => 'javelin-php-serializer',
+    ),
+    'disk' => '/rsrc/js/javelin/lib/__tests__/URI.js',
+  ),
   'javelin-behavior-aphront-basic-tokenizer' =>
   array(
     'uri' => '/res/9be30797/rsrc/js/application/core/behavior-tokenizer.js',
@@ -675,6 +686,18 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/js/application/owners/owners-path-editor.js',
   ),
+  'javelin-behavior-phabricator-keyboard-pager' =>
+  array(
+    'uri' => '/res/56d64eff/rsrc/js/application/core/behavior-keyboard-pager.js',
+    'type' => 'js',
+    'requires' =>
+    array(
+      0 => 'javelin-behavior',
+      1 => 'javelin-uri',
+      2 => 'phabricator-keyboard-shortcut',
+    ),
+    'disk' => '/rsrc/js/application/core/behavior-keyboard-pager.js',
+  ),
   'javelin-behavior-phabricator-keyboard-shortcuts' =>
   array(
     'uri' => '/res/94b009e2/rsrc/js/application/core/behavior-keyboard-shortcuts.js',

src/applications/conduit/controller/log/PhabricatorConduitLogController.php

@@ -65,6 +65,7 @@ class PhabricatorConduitLogController extends PhabricatorConduitController {
       $pager->getPageSize() + 1);
     $calls = $pager->sliceResults($calls);
     $pager->setURI(new PhutilURI('/conduit/log/view/'.$this->view.'/'), 'page');
+    $pager->setEnableKeyboardShortcuts(true);
 
     $min = $pager->getOffset() + 1;
     $max = ($min + count($calls) - 1);

src/view/control/pager/AphrontPagerView.php

@@ -27,6 +27,7 @@ final class AphrontPagerView extends AphrontView {
   private $uri;
   private $pagingParameter;
   private $surroundingPages = 2;
+  private $enableKeyboardShortcuts;
 
   final public function setPageSize($page_size) {
     $this->pageSize = max(1, $page_size);
@@ -106,6 +107,11 @@ final class AphrontPagerView extends AphrontView {
     return $results;
   }
 
+  public function setEnableKeyboardShortcuts($enable) {
+    $this->enableKeyboardShortcuts = $enable;
+    return $this;
+  }
+
   public function render() {
     if (!$this->uri) {
       throw new Exception(
@@ -146,12 +152,16 @@ final class AphrontPagerView extends AphrontView {
 
     $links = array();
 
+    $prev_index = null;
+    $next_index = null;
+
     if ($min > 0) {
       $links[] = array(0, 'First', null);
     }
 
     if ($page > 0) {
       $links[] = array($page - 1, 'Prev', null);
+      $prev_index = $page - 1;
     }
 
     for ($ii = $min; $ii <= $max; $ii++) {
@@ -160,6 +170,7 @@ final class AphrontPagerView extends AphrontView {
 
     if ($page < $last && $last > 0) {
       $links[] = array($page + 1, 'Next', null);
+      $next_index = $page + 1;
     }
 
     if ($max < ($last - 1)) {
@@ -168,20 +179,29 @@ final class AphrontPagerView extends AphrontView {
 
     $base_uri = $this->uri;
     $parameter = $this->pagingParameter;
-    $page_size = $this->getPageSize();
+
+    if ($this->enableKeyboardShortcuts) {
+      $pager_links = array();
+      $pager_index = array(
+        'prev' => $prev_index,
+        'next' => $next_index,
+      );
+      foreach ($pager_index as $key => $index) {
+        if ($index !== null) {
+          $display_index = $this->getDisplayIndex($index);
+          $pager_links[$key] = (string)$base_uri->alter(
+            $parameter,
+            $display_index);
+        }
+      }
+      Javelin::initBehavior('phabricator-keyboard-pager', $pager_links);
+    }
 
     // Convert tuples into rendered nodes.
     $rendered_links = array();
     foreach ($links as $link) {
       list($index, $label, $class) = $link;
-      // Use a 1-based sequence for display so that the number in the URI is
-      // the same as the page number you're on.
-      if ($index == 0) {
-        // No need for the first page to say page=1.
-        $display_index = null;
-      } else {
-        $display_index = $index * $page_size;
-      }
+      $display_index = $this->getDisplayIndex($index);
       $link = $base_uri->alter($parameter, $display_index);
       $rendered_links[] = phutil_render_tag(
         'a',
@@ -198,4 +218,17 @@ final class AphrontPagerView extends AphrontView {
       '</div>';
   }
 
+  private function getDisplayIndex($page_index) {
+    $page_size = $this->getPageSize();
+    // Use a 1-based sequence for display so that the number in the URI is
+    // the same as the page number you're on.
+    if ($page_index == 0) {
+      // No need for the first page to say page=1.
+      $display_index = null;
+    } else {
+      $display_index = $page_index * $page_size;
+    }
+    return $display_index;
+  }
+
 }

src/view/control/pager/__init__.php

@@ -7,6 +7,7 @@
 
 
 phutil_require_module('phabricator', 'infrastructure/celerity/api');
+phutil_require_module('phabricator', 'infrastructure/javelin/api');
 phutil_require_module('phabricator', 'view/base');
 
 phutil_require_module('phutil', 'markup');

webroot/rsrc/js/application/core/behavior-keyboard-pager.js

@@ -0,0 +1,26 @@
+/**
+ * @provides javelin-behavior-phabricator-keyboard-pager
+ * @requires javelin-behavior
+ *           javelin-uri
+ *           phabricator-keyboard-shortcut
+ */
+
+JX.behavior('phabricator-keyboard-pager', function(config) {
+
+  new JX.KeyboardShortcut('[', 'Prev Page')
+    .setHandler(function(manager) {
+      if (config.prev) {
+        JX.$U(config.prev).go();
+      }
+    })
+    .register();
+
+  new JX.KeyboardShortcut(']', 'Next Page')
+    .setHandler(function(manager) {
+      if (config.next) {
+        JX.$U(config.next).go();
+      }
+    })
+    .register();
+
+});