[gnome-software/wip/mcrha/show-metainfo-enh] show-metainfo: Allow defining also path for the icon to be used

[Milan Crha <mcrha src gnome org>]

commit d392d9a09a64d2205c3dde9011be027e74bc2d99
Author: Milan Crha <mcrha redhat com>
Date:   Fri Jan 21 12:59:57 2022 +0100

    show-metainfo: Allow defining also path for the icon to be used
    
    The passed-in metainfo is shown in the Details page, but without an icon.
    By passing in the icon it can be seen more accurately what the app
    will look like in the Software.
    
    To specify the icon append a comma-separated argument "icon=" to
    the path. An example:
    
       gnome-software --show-metainfo=/path/to/app.metainfo.xml,icon=/path/to/icon.png

 src/gs-details-page.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
---
diff --git a/src/gs-details-page.c b/src/gs-details-page.c
index 54bbb2052..fffb8d2c4 100644
--- a/src/gs-details-page.c
+++ b/src/gs-details-page.c
@@ -2450,15 +2450,32 @@ gs_details_page_metainfo_thread (GTask *task,
        const gchar *const *locales;
        g_autofree gchar *xml = NULL;
        g_autofree gchar *path = NULL;
+       g_autofree gchar *icon_path = NULL;
        g_autoptr(XbBuilder) builder = NULL;
        g_autoptr(XbBuilderSource) builder_source = NULL;
        g_autoptr(XbSilo) silo = NULL;
        g_autoptr(GPtrArray) nodes = NULL;
        g_autoptr(GError) error = NULL;
        g_autoptr(GsApp) app = NULL;
+       g_autoptr(GFile) tmp_file = NULL;
        GFile *file = task_data;
        XbNode *component;
 
+       path = g_file_get_path (file);
+       if (path && strstr (path, ",icon=")) {
+               gchar *pos = strstr (path, ",icon=");
+
+               *pos = '\0';
+
+               tmp_file = g_file_new_for_path (path);
+               file = tmp_file;
+
+               pos += 6;
+               if (*pos)
+                       icon_path = g_strdup (pos);
+       }
+       g_clear_pointer (&path, g_free);
+
        builder_source = xb_builder_source_new ();
        if (!xb_builder_source_load_file (builder_source, file, XB_BUILDER_SOURCE_FLAG_NONE, cancellable, 
&error)) {
                g_task_return_error (task, g_steal_pointer (&error));
@@ -2512,6 +2529,13 @@ gs_details_page_metainfo_thread (GTask *task,
        path = g_file_get_path (file);
        gs_app_set_origin (app, path);
 
+       if (icon_path) {
+               g_autoptr(GFile) icon_file = g_file_new_for_path (icon_path);
+               g_autoptr(GIcon) icon = g_file_icon_new (icon_file);
+               gs_icon_set_width (icon, (guint) -1);
+               gs_app_add_icon (app, G_ICON (icon));
+       }
+
        gs_app_set_state (app, GS_APP_STATE_UNKNOWN);
 
        g_task_return_pointer (task, g_steal_pointer (&app), g_object_unref);