Kind-of-terrible (?) oncopy handler

Summary: Works in Safari, Firefox, Chrome.

Test Plan: Copied some text, threw up a little in my mouth.

Reviewers: aran, tuomaspelkonen, tomo, rstout, btrahan

Reviewed By: aran

CC: aran, epriestley, ddfisher

Maniphest Tasks: T145, T995

Differential Revision: https://secure.phabricator.com/D244

src/__celerity_resource_map__.php

@@ -839,6 +839,17 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/js/application/core/behavior-object-selector.js',
   ),
+  'javelin-behavior-phabricator-oncopy' =>
+  array(
+    'uri' => '/res/70b9b75e/rsrc/js/application/core/behavior-oncopy.js',
+    'type' => 'js',
+    'requires' =>
+    array(
+      0 => 'javelin-behavior',
+      1 => 'javelin-dom',
+    ),
+    'disk' => '/rsrc/js/application/core/behavior-oncopy.js',
+  ),
   'javelin-behavior-phabricator-tooltips' =>
   array(
     'uri' => '/res/49f92a92/rsrc/js/application/core/behavior-tooltip.js',

src/applications/differential/parser/changeset/DifferentialChangesetParser.php

@@ -1417,7 +1417,10 @@ final class DifferentialChangesetParser {
           '<th'.$o_id.'>'.$o_num.'</th>'.
           '<td'.$o_attr.'>'.$o_text.'</td>'.
           '<th'.$n_id.'>'.$n_num.'</th>'.
-          '<td'.$n_attr.'>'.$n_text.'</td>'.
+          // NOTE: This is a unicode zero-width space, which we use as a hint
+          // when intercepting 'copy' events to make sure sensible text ends
+          // up on the clipboard. See the 'phabricator-oncopy' behavior.
+          '<td'.$n_attr.'>'."\xE2\x80\x8B".$n_text.'</td>'.
           $n_cov.
         '</tr>';
 

src/applications/differential/view/changesetdetailview/DifferentialChangesetDetailView.php

@@ -65,6 +65,8 @@ final class DifferentialChangesetDetailView extends AphrontView {
     require_celerity_resource('differential-changeset-view-css');
     require_celerity_resource('syntax-highlighting-css');
 
+    Javelin::initBehavior('phabricator-oncopy', array());
+
     if ($this->revisionID) {
       $edit = true;
     } else {

src/applications/paste/controller/view/PhabricatorPasteViewController.php

@@ -142,6 +142,7 @@ final class PhabricatorPasteViewController extends PhabricatorPasteController {
 
     $text_list = explode("\n", $source);
 
+    Javelin::initBehavior('phabricator-oncopy', array());
     $rows = $this->buildDisplayRows($text_list);
 
     $corpus_table = phutil_render_tag(
@@ -179,7 +180,10 @@ final class PhabricatorPasteViewController extends PhabricatorPasteController {
         ),
         $n);
       $rows[] = '<tr id="'.$anchor.'"><th>'.$link.'</th>'.
-        '<td style="white-space: pre-wrap;">'.$line.'</td></tr>';
+        '<td style="white-space: pre-wrap;">'.
+        // NOTE: See the 'phabricator-oncopy' behavior.
+        "\xE2\x80\x8B".
+        $line.'</td></tr>';
       ++$n;
     }
 

src/applications/paste/controller/view/__init__.php

@@ -13,6 +13,7 @@ phutil_require_module('phabricator', 'applications/markup/syntax');
 phutil_require_module('phabricator', 'applications/paste/controller/base');
 phutil_require_module('phabricator', 'applications/paste/storage/paste');
 phutil_require_module('phabricator', 'infrastructure/celerity/api');
+phutil_require_module('phabricator', 'infrastructure/javelin/api');
 phutil_require_module('phabricator', 'view/control/table');
 phutil_require_module('phabricator', 'view/layout/panel');