[gnome-software/gnome-3-18] Guess the application ID when installing local files

[Richard Hughes <rhughes src gnome org>]

commit ab0743a54500a8d4c02b360535dab40acecb1be8
Author: Richard Hughes <richard hughsie com>
Date:   Mon Sep 28 11:12:47 2015 +0100

    Guess the application ID when installing local files
    
    This lets us show the screenshots and long descriptions when installing local
    files, and also allows us to handle 'launching' the application when it is
    installed.

 src/plugins/gs-plugin-packagekit-refresh.c |   61 ++++++++++++++++++++++++++++
 1 files changed, 61 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/gs-plugin-packagekit-refresh.c b/src/plugins/gs-plugin-packagekit-refresh.c
index dc21ce3..369f13c 100644
--- a/src/plugins/gs-plugin-packagekit-refresh.c
+++ b/src/plugins/gs-plugin-packagekit-refresh.c
@@ -224,6 +224,58 @@ gs_plugin_packagekit_refresh_content_type_matches (const gchar *filename,
 }
 
 /**
+ * gs_plugin_packagekit_refresh_guess_app_id:
+ */
+static gboolean
+gs_plugin_packagekit_refresh_guess_app_id (GsPlugin *plugin,
+                                          GsApp *app,
+                                          const gchar *filename,
+                                          GCancellable *cancellable,
+                                          GError **error)
+{
+       PkFiles *item;
+       guint i;
+       guint j;
+       gchar **fns;
+       g_auto(GStrv) files = NULL;
+       g_autoptr(PkResults) results = NULL;
+       g_autoptr(GPtrArray) array = NULL;
+
+       /* get file list so we can work out ID */
+       files = g_strsplit (filename, "\t", -1);
+       results = pk_client_get_files_local (PK_CLIENT (plugin->priv->task),
+                                            files,
+                                            cancellable,
+                                            gs_plugin_packagekit_progress_cb, plugin,
+                                            error);
+       if (results == NULL)
+               return FALSE;
+       array = pk_results_get_files_array (results);
+       if (array->len == 0) {
+               g_set_error (error,
+                            GS_PLUGIN_ERROR,
+                            GS_PLUGIN_ERROR_FAILED,
+                            "no files for %s", filename);
+               return FALSE;
+       }
+
+       /* find the first desktop file */
+       for (i = 0; i < array->len; i++) {
+               item = g_ptr_array_index (array, i);
+               fns = pk_files_get_files (item);
+               for (j = 0; fns[j] != NULL; j++) {
+                       if (g_str_has_suffix (fns[j], ".desktop")) {
+                               g_autofree gchar *basename;
+                               basename = g_path_get_basename (fns[j]);
+                               gs_app_set_id (app, basename);
+                               break;
+                       }
+               }
+       }
+       return TRUE;
+}
+
+/**
  * gs_plugin_filename_to_app:
  */
 gboolean
@@ -305,6 +357,15 @@ gs_plugin_filename_to_app (GsPlugin *plugin,
        gs_app_set_url (app, AS_URL_KIND_HOMEPAGE, pk_details_get_url (item));
        gs_app_set_size (app, pk_details_get_size (item));
        gs_app_set_licence (app, pk_details_get_license (item));
+
+       /* look for a desktop file so we can use a valid application id */
+       if (!gs_plugin_packagekit_refresh_guess_app_id (plugin,
+                                                       app,
+                                                       filename,
+                                                       cancellable,
+                                                       error))
+               return FALSE;
+
        gs_plugin_add_app (list, app);
        return TRUE;
 }