[nautilus/gnome-3-16] view: allow open with another app for multiple files

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit 4f77bc78c2ecb12fbea35f0de1734f1a065d4393
Author: Carlos Soriano <csoriano gnome org>
Date:   Wed Apr 22 18:01:32 2015 +0200

    view: allow open with another app for multiple files
    
    As we allow to open them with the default app, but in this
    case we have to ensure all selected files can be opened by
    a single app.

 src/nautilus-view.c |   57 +++++++++++++++++++-------------------------------
 1 files changed, 22 insertions(+), 35 deletions(-)
---
diff --git a/src/nautilus-view.c b/src/nautilus-view.c
index 1e28f16..f8d49b3 100644
--- a/src/nautilus-view.c
+++ b/src/nautilus-view.c
@@ -1042,61 +1042,53 @@ app_chooser_dialog_response_cb (GtkDialog *dialog,
                                gpointer user_data)
 {
        GtkWindow *parent_window;
-       NautilusFile *file;
+       GList *files;
        GAppInfo *info;
-       GList files;
 
        parent_window = user_data;
+       files = g_object_get_data (G_OBJECT (dialog), "directory-view:files");
 
-       if (response_id != GTK_RESPONSE_OK) {
-               gtk_widget_destroy (GTK_WIDGET (dialog));
-               return;
-       }
+       if (response_id != GTK_RESPONSE_OK)
+                goto out;
 
        info = gtk_app_chooser_get_app_info (GTK_APP_CHOOSER (dialog));
-       file = g_object_get_data (G_OBJECT (dialog), "directory-view:file");
 
        g_signal_emit_by_name (nautilus_signaller_get_current (), "mime-data-changed");
 
-       files.next = NULL;
-       files.prev = NULL;
-       files.data = file;
-       nautilus_launch_application (info, &files, parent_window);
+       nautilus_launch_application (info, files, parent_window);
 
-       gtk_widget_destroy (GTK_WIDGET (dialog));
        g_object_unref (info);
+out:
+       gtk_widget_destroy (GTK_WIDGET (dialog));
 }
 
 static void
 choose_program (NautilusView *view,
-               NautilusFile *file)
+                GList        *files)
 {
        GtkWidget *dialog;
-       GFile *location;
+       gchar *mime_type;
        GtkWindow *parent_window;
 
        g_assert (NAUTILUS_IS_VIEW (view));
-       g_assert (NAUTILUS_IS_FILE (file));
 
-       nautilus_file_ref (file);
-       location = nautilus_file_get_location (file);
+       mime_type = nautilus_file_get_mime_type (files->data);
        parent_window = nautilus_view_get_containing_window (view);
 
-       dialog = gtk_app_chooser_dialog_new (parent_window,
-                                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT | 
GTK_DIALOG_USE_HEADER_BAR,
-                                            location);
-       g_object_set_data_full (G_OBJECT (dialog), 
-                               "directory-view:file",
-                               g_object_ref (file),
-                               (GDestroyNotify)g_object_unref);
+       dialog = gtk_app_chooser_dialog_new_for_content_type (parent_window,
+                                                              GTK_DIALOG_MODAL |
+                                                              GTK_DIALOG_DESTROY_WITH_PARENT |
+                                                              GTK_DIALOG_USE_HEADER_BAR,
+                                                              mime_type);
+       g_object_set_data_full (G_OBJECT (dialog),
+                               "directory-view:files",
+                               files,
+                               (GDestroyNotify) nautilus_file_list_free);
        gtk_widget_show (dialog);
 
-       g_signal_connect_object (dialog, "response", 
+       g_signal_connect_object (dialog, "response",
                                 G_CALLBACK (app_chooser_dialog_response_cb),
                                 parent_window, 0);
-
-       g_object_unref (location);
-       nautilus_file_unref (file);     
 }
 
 static void
@@ -1107,12 +1099,7 @@ open_with_other_program (NautilusView *view)
        g_assert (NAUTILUS_IS_VIEW (view));
 
                selection = nautilus_view_get_selection (view);
-
-       if (selection_contains_one_item_in_menu_callback (view, selection)) {
-               choose_program (view, NAUTILUS_FILE (selection->data));
-       }
-
-       nautilus_file_list_free (selection);
+       choose_program (view, selection);
 }
 
 static void
@@ -5988,7 +5975,7 @@ real_update_actions_state (NautilusView *view)
        action = g_action_map_lookup_action (G_ACTION_MAP (view_action_group),
                                             "open-with-other-application");
        g_simple_action_set_enabled (G_SIMPLE_ACTION (action),
-                                    app != NULL && selection_count == 1);
+                                    app != NULL);
 
        action = g_action_map_lookup_action (G_ACTION_MAP (view_action_group),
                                             "open-item-new-tab");