Line count can be set for paste

Summary:
Probably not the ideal way to deal showing only certain amount of lines. Size vary by browsers,
zooming will mess it up albeit only a little and will definitely not work with IE.

Test Plan: {F35989}

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T1770

Differential Revision: https://secure.phabricator.com/D5347

src/applications/paste/remarkup/PhabricatorPasteRemarkupRule.php

@@ -32,9 +32,9 @@ final class PhabricatorPasteRemarkupRule
 
       foreach ($opts as $key => $value) {
         if ($key == 'lines') {
-          // placeholder for now
+          $embed_paste->setLines(preg_replace('/[^0-9]/', '', $value));
         } else if ($key == 'highlight') {
-          $highlights = explode('&', preg_replace('/\s+/', '', $value));
+          $highlights = preg_split('/,|&/', preg_replace('/\s+/', '', $value));
 
           $to_highlight = array();
           foreach ($highlights as $highlight) {

src/applications/paste/view/PasteEmbedView.php

@@ -5,6 +5,7 @@ final class PasteEmbedView extends AphrontView {
   private $paste;
   private $handle;
   private $highlights = array();
+  private $lines = 30;
 
   public function setPaste(PhabricatorPaste $paste) {
     $this->paste = $paste;
@@ -21,6 +22,10 @@ final class PasteEmbedView extends AphrontView {
     return $this;
   }
 
+  public function setLines($lines) {
+    $this->lines = $lines;
+  }
+
   public function render() {
     if (!$this->paste) {
       throw new Exception("Call setPaste() before render()!");
@@ -43,18 +48,21 @@ final class PasteEmbedView extends AphrontView {
       ),
       $link);
 
+    $body_attributes = array('class' => 'paste-embed-body');
+    if ($this->lines != null) {
+      $body_attributes['style'] = 'max-height: '.$this->lines * (1.15).'em;';
+    }
+
     $body = phutil_tag(
       'div',
-      array(),
+      $body_attributes,
       id(new PhabricatorSourceCodeView())
       ->setLines($lines)
       ->setHighlights($this->highlights));
 
     return phutil_tag(
       'div',
-      array(
-        'class' => 'paste-embed'
-      ),
+      array('class' => 'paste-embed'),
       array($head, $body));
 
   }

src/view/layout/PhabricatorSourceCodeView.php

@@ -17,7 +17,7 @@ final class PhabricatorSourceCodeView extends AphrontView {
   }
 
   public function setHighlights(array $highlights) {
-    $this->highlights = $highlights;
+    $this->highlights = array_fuse($highlights);
     return $this;
   }
 
@@ -31,7 +31,6 @@ 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);
@@ -50,7 +49,7 @@ final class PhabricatorSourceCodeView extends AphrontView {
       }
 
       $row_attributes = array();
-      if (in_array($line_number, $this->highlights)) {
+      if (isset($this->highlights[$line_number])) {
         $row_attributes['class'] = 'phabricator-source-highlight';
       }
 

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

@@ -17,3 +17,7 @@
   color: #282828;
   font-weight: bold;
 }
+
+.paste-embed-body {
+  overflow-y: auto;
+}