[meld: 1/2] dirdiff: Add 'Copy File Names' to context menu

[Kai Willadsen <kaiw src gnome org>]

commit 00d7fdc672599b3b5d649f544135ba65eb393f50
Author: WenGuoyao <wenguoyao outlook com>
Date:   Sat Jan 11 21:54:58 2020 +0000

    dirdiff: Add 'Copy File Names' to context menu
    
    During directory comparison, it's sometimes useful to copy the names
    of the files to clipboard.

 meld/dirdiff.py                    | 15 +++++++++++++++
 meld/resources/ui/dirdiff-menus.ui |  4 ++++
 2 files changed, 19 insertions(+)
---
diff --git a/meld/dirdiff.py b/meld/dirdiff.py
index 5d5c7428..a99779dd 100644
--- a/meld/dirdiff.py
+++ b/meld/dirdiff.py
@@ -423,6 +423,7 @@ class DirDiff(Gtk.VBox, tree.TreeviewCommon, MeldDoc):
             ('previous-change', self.action_previous_change),
             ('previous-pane', self.action_prev_pane),
             ('refresh', self.action_refresh),
+            ('copy-file-paths', self.action_copy_file_paths),
         )
         for name, callback in actions:
             action = Gio.SimpleAction.new(name, None)
@@ -1354,6 +1355,20 @@ class DirDiff(Gtk.VBox, tree.TreeviewCommon, MeldDoc):
         if files:
             self._open_files(files)
 
+    def action_copy_file_paths(self, *args):
+        pane = self._get_focused_pane()
+        if pane is None:
+            return
+        files = [
+            self.model.value_path(self.model.get_iter(p), pane)
+            for p in self._get_selected_paths(pane)
+        ]
+        files = [f for f in files if f]
+        if files:
+            clip = Gtk.Clipboard.get_default(Gdk.Display.get_default())
+            clip.set_text(''.join([str(f) for f in files]), -1)
+            clip.store()
+
     def action_ignore_case_change(self, action, value):
         action.set_state(value)
         self.refresh()
diff --git a/meld/resources/ui/dirdiff-menus.ui b/meld/resources/ui/dirdiff-menus.ui
index ece808ce..4a2b459c 100644
--- a/meld/resources/ui/dirdiff-menus.ui
+++ b/meld/resources/ui/dirdiff-menus.ui
@@ -40,6 +40,10 @@
         <attribute name="label" translatable="yes">_Open Externally</attribute>
         <attribute name="action">view.open-external</attribute>
       </item>
+      <item>
+        <attribute name="label" translatable="yes">_Copy File Paths</attribute>
+        <attribute name="action">view.copy-file-paths</attribute>
+      </item>
     </section>
   </menu>
 </interface>