[tracker/tracker-0.10] tracker-needle: Make model load icons for file queries

[Martyn James Russell <mr src gnome org>]

commit de42e3d9485ff161e2aaa11155df45e1afa91bad
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Mar 22 18:34:33 2011 +0100

    tracker-needle: Make model load icons for file queries

 src/tracker-needle/tracker-needle.vala       |   10 ++--
 src/tracker-needle/tracker-result-store.vala |   65 +++++++++++++++++++++++++-
 src/tracker-needle/tracker-view.vala         |    7 +--
 3 files changed, 72 insertions(+), 10 deletions(-)
---
diff --git a/src/tracker-needle/tracker-needle.vala b/src/tracker-needle/tracker-needle.vala
index 4e47021..3105a62 100644
--- a/src/tracker-needle/tracker-needle.vala
+++ b/src/tracker-needle/tracker-needle.vala
@@ -113,23 +113,25 @@ public class Tracker.Needle {
 		                            "?tooltip");
 
 		// Files model
-		files_model = new ResultStore (6);
+		files_model = new ResultStore (7);
 		files_model.add_query (Tracker.Query.Type.ALL,
 		                       "?urn",
-		                       "nfo:fileLastModified(?urn)",
+		                       "nie:url(?urn)",
 		                       "tracker:coalesce(nie:title(?urn), nfo:fileName(?urn))",
 		                       "nie:url(?urn)",
 		                       "nfo:fileSize(?urn)",
+		                       "nfo:fileLastModified(?urn)",
 		                       "nie:url(?urn)");
 
 		// Files model, search in titles
-		files_in_title_model = new ResultStore (6);
+		files_in_title_model = new ResultStore (7);
 		files_in_title_model.add_query (Tracker.Query.Type.ALL_ONLY_IN_TITLES,
 		                                "?urn",
-		                                "nfo:fileLastModified(?urn)",
+		                                "nie:url(?urn)",
 		                                "tracker:coalesce(nie:title(?urn), nfo:fileName(?urn))",
 		                                "nie:url(?urn)",
 		                                "nfo:fileSize(?urn)",
+		                                "nfo:fileLastModified(?urn)",
 		                                "nie:url(?urn)");
 	}
 
diff --git a/src/tracker-needle/tracker-result-store.vala b/src/tracker-needle/tracker-result-store.vala
index 43fd019..7248eaf 100644
--- a/src/tracker-needle/tracker-result-store.vala
+++ b/src/tracker-needle/tracker-result-store.vala
@@ -24,6 +24,7 @@ public class Tracker.ResultStore : Gtk.TreeModel, GLib.Object {
 
 	private struct ResultNode {
 		string [] values;
+		Gdk.Pixbuf pixbuf;
 	}
 	private class CategoryNode {
 		public Tracker.Query.Type type;
@@ -443,6 +444,63 @@ public class Tracker.ResultStore : Gtk.TreeModel, GLib.Object {
 		return path;
 	}
 
+	private async void fetch_thumbnail (TreeIter iter) {
+		GLib.File file;
+		GLib.FileInfo info;
+		GLib.Icon icon;
+		TreePath path;
+		Gtk.IconInfo icon_info;
+		ResultNode *result;
+		string thumb_path;
+		Gdk.Pixbuf pixbuf = null;
+
+		result = iter.user_data2;
+
+		// Query thumbnail to GIO
+		file = GLib.File.new_for_uri (result.values[1]);
+
+		try {
+			info = yield file.query_info_async ("thumbnail::path,standard::icon",
+			                                    GLib.FileQueryInfoFlags.NONE,
+			                                    GLib.Priority.DEFAULT,
+			                                    cancellable);
+		} catch (GLib.Error ie) {
+			warning ("Could not get thumbnail: %s", ie.message);
+			return;
+		}
+
+		thumb_path = info.get_attribute_byte_string ("thumbnail::path");
+
+		try {
+			if (thumb_path != null) {
+				pixbuf = new Gdk.Pixbuf.from_file_at_size (thumb_path, 24, 24);
+			} else {
+				icon = (GLib.Icon) info.get_attribute_object ("standard::icon");
+
+				if (icon == null) {
+					return;
+				}
+
+				var theme = IconTheme.get_for_screen (Gdk.Screen.get_default ());
+				icon_info = theme.lookup_by_gicon (icon, 24, 0);
+
+				if (icon_info == null) {
+					return;
+				}
+
+				pixbuf = icon_info.load_icon ();
+			}
+		} catch (GLib.Error e) {
+			warning ("Could not get icon pixbuf: %s\n", e.message);
+		}
+
+		if (pixbuf != null) {
+			result.pixbuf = pixbuf;
+			path = get_path (iter);
+			row_changed (path, iter);
+		}
+	}
+
 	public void get_value (Gtk.TreeIter   iter,
 	                       int            column,
 	                       out GLib.Value value) {
@@ -526,8 +584,11 @@ public class Tracker.ResultStore : Gtk.TreeModel, GLib.Object {
 
 			if (result.values[0] != null) {
 				if (column == n_columns - 1) {
-					// No pixbuf ATM
-					//value.set_object (null);
+					if (result.pixbuf != null) {
+						value.set_object (result.pixbuf);
+					} else if (queries.length == 1) {
+						fetch_thumbnail.begin (iter);
+					}
 				} else {
 					value.set_string (result.values[column]);
 				}
diff --git a/src/tracker-needle/tracker-view.vala b/src/tracker-needle/tracker-view.vala
index fe580db..96f3cd3 100644
--- a/src/tracker-needle/tracker-view.vala
+++ b/src/tracker-needle/tracker-view.vala
@@ -142,7 +142,7 @@ public class Tracker.View : ScrolledWindow {
 			TreeView tv = (TreeView) view;
 
 			tv.set_model (store);
-			tv.set_tooltip_column (8);
+			tv.set_tooltip_column (6);
 			tv.set_rules_hint (false);
 			tv.set_grid_lines (TreeViewGridLines.VERTICAL);
 			tv.set_headers_visible (true);
@@ -153,12 +153,11 @@ public class Tracker.View : ScrolledWindow {
 			col = new TreeViewColumn ();
 			col.set_sizing (TreeViewColumnSizing.AUTOSIZE);
 			col.pack_start (renderer1, false);
-			col.add_attribute (renderer1, "pixbuf", 6);
+			col.add_attribute (renderer1, "pixbuf", 7);
 			renderer1.xpad = 5;
 			renderer1.ypad = 5;
 
 			col.pack_start (renderer2, true);
-			//col.add_attribute (renderer2, "text", 2);
                         renderer2.set_fixed_height_from_font (2);
 			renderer2.ellipsize = Pango.EllipsizeMode.MIDDLE;
 
@@ -174,7 +173,7 @@ public class Tracker.View : ScrolledWindow {
 			col = new TreeViewColumn ();
 			col.set_sizing (TreeViewColumnSizing.AUTOSIZE);
 			col.pack_start (renderer3, true);
-			col.add_attribute (renderer3, "text", 1);
+			col.add_attribute (renderer3, "text", 5);
 			col.set_title (_("Last Changed"));
 			col.set_cell_data_func (renderer3, renderer_background_func);
 			tv.append_column (col);