Embed pastes now support highlight

Summary:
- Added support for highlighting to PhabricatorSourceCodeView
- Added support for highlighting to embed pastes

Test Plan: {F35975}

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T1770

Differential Revision: https://secure.phabricator.com/D5346

src/applications/paste/remarkup/PhabricatorPasteRemarkupRule.php

@@ -26,6 +26,34 @@ final class PhabricatorPasteRemarkupRule
       ->setPaste($object)
       ->setHandle($handle);
 
+    if (strlen($options)) {
+      $parser = new PhutilSimpleOptions();
+      $opts = $parser->parse(substr($options, 1));
+
+      foreach ($opts as $key => $value) {
+        if ($key == 'lines') {
+          // placeholder for now
+        } else if ($key == 'highlight') {
+          $highlights = explode('&', preg_replace('/\s+/', '', $value));
+
+          $to_highlight = array();
+          foreach ($highlights as $highlight) {
+            $highlight = explode('-', $highlight);
+
+            if (!empty($highlight)) {
+              sort($highlight);
+              $to_highlight = array_merge(
+                $to_highlight,
+                range(head($highlight), last($highlight)));
+            }
+          }
+
+          $embed_paste->setHighlights(array_unique($to_highlight));
+        }
+      }
+
+    }
+
     return $embed_paste->render();
 
   }

src/applications/paste/view/PasteEmbedView.php

@@ -4,6 +4,7 @@ final class PasteEmbedView extends AphrontView {
 
   private $paste;
   private $handle;
+  private $highlights = array();
 
   public function setPaste(PhabricatorPaste $paste) {
     $this->paste = $paste;
@@ -15,6 +16,11 @@ final class PasteEmbedView extends AphrontView {
     return $this;
   }
 
+  public function setHighlights(array $highlights) {
+    $this->highlights = $highlights;
+    return $this;
+  }
+
   public function render() {
     if (!$this->paste) {
       throw new Exception("Call setPaste() before render()!");
@@ -41,7 +47,8 @@ final class PasteEmbedView extends AphrontView {
       'div',
       array(),
       id(new PhabricatorSourceCodeView())
-      ->setLines($lines));
+      ->setLines($lines)
+      ->setHighlights($this->highlights));
 
     return phutil_tag(
       'div',

src/view/layout/PhabricatorSourceCodeView.php

@@ -4,6 +4,7 @@ final class PhabricatorSourceCodeView extends AphrontView {
 
   private $lines;
   private $limit;
+  private $highlights = array();
 
   public function setLimit($limit) {
     $this->limit = $limit;
@@ -15,6 +16,11 @@ final class PhabricatorSourceCodeView extends AphrontView {
     return $this;
   }
 
+  public function setHighlights(array $highlights) {
+    $this->highlights = $highlights;
+    return $this;
+  }
+
   public function render() {
     require_celerity_resource('phabricator-source-code-view-css');
     require_celerity_resource('syntax-highlighting-css');
@@ -25,6 +31,7 @@ final class PhabricatorSourceCodeView extends AphrontView {
 
     $rows = array();
     foreach ($this->lines as $line) {
+
       $hit_limit = $this->limit &&
                    ($line_number == $this->limit) &&
                    (count($this->lines) != $this->limit);
@@ -42,15 +49,21 @@ final class PhabricatorSourceCodeView extends AphrontView {
         $content_line = hsprintf("\xE2\x80\x8B%s", $line);
       }
 
+      $row_attributes = array();
+      if (in_array($line_number, $this->highlights)) {
+        $row_attributes['class'] = 'phabricator-source-highlight';
+      }
+
       // TODO: Provide nice links.
 
-      $rows[] = hsprintf(
+      $rows[] = phutil_tag(
-        '<tr>'.
+        'tr',
+        $row_attributes,
+        hsprintf(
           '<th class="phabricator-source-line">%s</th>'.
-          '<td class="phabricator-source-code">%s</td>'.
+          '<td class="phabricator-source-code">%s</td>',
-        '</tr>',
           $content_number,
-        $content_line);
+          $content_line));
 
       if ($hit_limit) {
         break;

webroot/rsrc/css/application/paste/paste.css

@@ -3,14 +3,13 @@
  */
 
 .paste-embed {
-  display: inline-block;
   padding: 5px;
   background: #f7f7f7;
+  border: 1px solid #dbdbdb;
 }
 
 .paste-embed-head {
-  border-bottom: 1px solid #3d3d3d;
+  border-bottom: 1px solid #dbdbdb;
-  padding: 2px;
   margin:2px;
 }
 

webroot/rsrc/css/layout/phabricator-source-code-view.css

@@ -30,6 +30,10 @@
   user-select: none;
 }
 
+.phabricator-source-highlight {
+  background: #ff0;
+}
+
 .phabricator-source-code-summary {
   padding-bottom: 8px;
 }