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[tracker/needle: 1/7] Initial Needle app

commit 9a6a106e92d7453add6729b309fc91620104a2ac
Author: Martyn Russell <martyn lanedo com>
Date:   Sat May 29 00:24:16 2010 +0100

    Initial Needle app

 configure.ac           |    1 +
 src/Makefile.am        |    1 +
 src/needle/Makefile.am |   42 +++++++
 src/needle/needle.ui   |  173 +++++++++++++++++++++++++++++
 src/needle/needle.vala |  281 ++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 498 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6844c84..a395d3d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1909,6 +1909,7 @@ AC_CONFIG_FILES([
 	src/tracker-search-tool/Makefile
 	src/tracker-search-tool/tracker-search-tool.desktop.in
 	src/tracker-explorer/Makefile
+	src/needle/Makefile
 	src/tracker-utils/Makefile
 	src/tracker-writeback/Makefile
 	src/plugins/Makefile
diff --git a/src/Makefile.am b/src/Makefile.am
index 6043e11..4944316 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -30,6 +30,7 @@ SUBDIRS = 					\
 	tracker-utils				\
 	tracker-extract				\
 	tracker-writeback			\
+	needle					\
 	vapi
 
 if HAVE_TRACKER_PREFERENCES
diff --git a/src/needle/Makefile.am b/src/needle/Makefile.am
new file mode 100644
index 0000000..6e45acc
--- /dev/null
+++ b/src/needle/Makefile.am
@@ -0,0 +1,42 @@
+include $(top_srcdir)/Makefile.decl
+
+bin_PROGRAMS = needle
+
+needle_VALASOURCES = 						\
+	needle.vala
+
+needle_SOURCES = 						\
+	$(needle_VALASOURCES:.vala=.c)
+
+needle.vala.stamp: $(needle_VALASOURCES)
+	$(VALAC) -C -g --pkg dbus-glib-1 --pkg gtk+-2.0 $^
+	touch needle.vala.stamp
+
+needle_CFLAGS = 						\
+	-DTRACKER_UI_DIR=\"$(datadir)/tracker/\"		\
+	-DSRCDIR=\"$(abs_srcdir)/\"				\
+	$(TRACKER_APPS_CFLAGS)					\
+	$(TRACKER_VALA_CFLAGS)					\
+	$(WARN_CFLAGS)						\
+	$(GCOV_CFLAGS)
+
+needle_LDADD = 							\
+	$(TRACKER_APPS_LIBS)					\
+	$(TRACKER_VALA_LIBS)					\
+	$(GCOV_LIBS)
+
+uidir = $(datadir)/tracker
+ui_DATA = needle.ui
+
+EXTRA_DIST = 							\
+	$(needle_VALASOURCES) 					\
+	$(ui_DATA)						\
+	needle.vala.stamp
+
+MAINTAINERCLEANFILES = 						\
+	needle.vala.stamp 					\
+	$(needle_VALASOURCES:.vala=.c)
+
+BUILT_SOURCES = 						\
+	needle.vala.stamp
+
diff --git a/src/needle/needle.ui b/src/needle/needle.ui
new file mode 100644
index 0000000..0646634
--- /dev/null
+++ b/src/needle/needle.ui
@@ -0,0 +1,173 @@
+<?xml version="1.0"?>
+<interface>
+  <!-- interface-requires gtk+ 2.12 -->
+  <!-- interface-naming-policy project-wide -->
+  <object class="GtkListStore" id="liststore_results"/>
+  <object class="GtkWindow" id="window_needle">
+    <property name="title" translatable="yes">Needle</property>
+    <property name="default_width">640</property>
+    <property name="default_height">480</property>
+    <child>
+      <object class="GtkVBox" id="vbox_main">
+        <property name="visible">True</property>
+        <child>
+          <object class="GtkToolbar" id="toolbar_main">
+            <property name="visible">True</property>
+            <child>
+              <object class="GtkToolButton" id="toolbutton_back">
+                <property name="visible">True</property>
+                <property name="label" translatable="yes">toolbutton1</property>
+                <property name="use_underline">True</property>
+                <property name="stock_id">gtk-go-back</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToolButton" id="toolbutton_forward">
+                <property name="visible">True</property>
+                <property name="label" translatable="yes">toolbutton1</property>
+                <property name="use_underline">True</property>
+                <property name="stock_id">gtk-go-forward</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkSeparatorToolItem" id="toolbutton1">
+                <property name="visible">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkRadioToolButton" id="toolbutton_view_list">
+                <property name="visible">True</property>
+                <property name="is_important">True</property>
+                <property name="label" translatable="yes">_List</property>
+                <property name="use_underline">True</property>
+                <property name="active">True</property>
+                <property name="group">toolbutton_view_icons</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkRadioToolButton" id="toolbutton_view_icons">
+                <property name="visible">True</property>
+                <property name="is_important">True</property>
+                <property name="label" translatable="yes">_Icons</property>
+                <property name="use_underline">True</property>
+                <property name="active">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkSeparatorToolItem" id="toolbutton2">
+                <property name="visible">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToolItem" id="toolbutton_search_label">
+                <property name="visible">True</property>
+                <property name="is_important">True</property>
+                <child>
+                  <object class="GtkLabel" id="label_search">
+                    <property name="visible">True</property>
+                    <property name="label" translatable="yes">_Search:</property>
+                    <property name="use_underline">True</property>
+                    <property name="mnemonic_widget">entry_search</property>
+                  </object>
+                </child>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToolItem" id="toolbutton_search_entry">
+                <property name="visible">True</property>
+                <property name="is_important">True</property>
+                <child>
+                  <object class="GtkEntry" id="entry_search">
+                    <property name="visible">True</property>
+                    <property name="can_focus">True</property>
+                    <property name="has_focus">True</property>
+                    <property name="invisible_char">&#x25CF;</property>
+                    <property name="activates_default">True</property>
+                  </object>
+                </child>
+              </object>
+              <packing>
+                <property name="expand">True</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkHBox" id="hbox_view">
+            <property name="visible">True</property>
+            <child>
+              <object class="GtkScrolledWindow" id="scrolledwindow_treeview">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="hscrollbar_policy">automatic</property>
+                <property name="vscrollbar_policy">automatic</property>
+                <child>
+                  <object class="GtkTreeView" id="treeview_results">
+                    <property name="can_focus">True</property>
+                    <property name="model">liststore_results</property>
+                  </object>
+                </child>
+              </object>
+              <packing>
+                <property name="position">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkScrolledWindow" id="scrolledwindow_iconview">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="hscrollbar_policy">automatic</property>
+                <property name="vscrollbar_policy">automatic</property>
+                <child>
+                  <object class="GtkIconView" id="iconview_results">
+                    <property name="can_focus">True</property>
+                    <property name="model">liststore_results</property>
+                  </object>
+                </child>
+              </object>
+              <packing>
+                <property name="position">1</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="position">1</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>
diff --git a/src/needle/needle.vala b/src/needle/needle.vala
new file mode 100644
index 0000000..317083c
--- /dev/null
+++ b/src/needle/needle.vala
@@ -0,0 +1,281 @@
+//
+// Copyright 2010, Martyn Russell <martyn lanedo com>
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+// 02110-1301, USA.
+//
+
+using Gtk;
+
+[CCode (cname = "TRACKER_UI_DIR")]
+extern static const string UIDIR;
+
+[CCode (cname = "SRCDIR")]
+extern static const string SRCDIR;
+
+[DBus (name = "org.freedesktop.Tracker1.Resources")]
+interface Resources : GLib.Object {
+	public abstract string[,] SparqlQuery (string query) throws DBus.Error;
+}
+
+public class Needle {
+	private const string UI_FILE = "needle.ui";
+	private Resources tracker;
+	private Window window;
+	private ToolButton back;
+	private ToolButton forward;
+	private ToolButton view_list;
+	private ToolButton view_icons;
+	private Entry search;
+	private ScrolledWindow sw_treeview;
+	private TreeView treeview;
+	private ScrolledWindow sw_iconview;
+	private IconView iconview;
+	private uint last_search_id = 0;
+	private ListStore store;
+
+	public void show () {
+		setup_dbus ();
+		setup_ui ();
+
+		window.show ();
+	}
+
+	private void setup_dbus () {
+		try {
+			var conn = DBus.Bus.get (DBus.BusType.SESSION);
+			tracker = (Resources) conn.get_object ("org.freedesktop.Tracker1",
+												   "/org/freedesktop/Tracker1/Resources",
+												   "org.freedesktop.Tracker1.Resources");
+		} catch (DBus.Error e) {
+			var msg = new MessageDialog (null,
+										 DialogFlags.MODAL,
+										 MessageType.ERROR,
+										 ButtonsType.CANCEL,
+										 "Error connecting to D-Bus session bus, %s", 
+										 e.message);
+			msg.run ();
+			Gtk.main_quit ();
+		}
+	}
+
+	private void setup_ui () {
+		var builder = new Builder ();
+
+		try {
+			//try load from source tree first.
+			builder.add_from_file (SRCDIR + UI_FILE);
+		} catch (GLib.Error e) {
+			//now the install location
+			try {
+				builder.add_from_file (UIDIR + UI_FILE);
+			} catch (GLib.Error e) {
+				var msg = new MessageDialog (null, 
+											 DialogFlags.MODAL,
+											 MessageType.ERROR,
+											 ButtonsType.CANCEL,
+											 "Failed to load UI file, %s\n",
+											 e.message);
+				msg.run ();
+				Gtk.main_quit();
+			}
+		}
+
+		window = builder.get_object ("window_needle") as Window;
+		window.destroy += Gtk.main_quit;
+
+		back = builder.get_object ("toolbutton_back") as ToolButton;
+		back.clicked += back_clicked;
+		back.set_sensitive(false);
+
+		forward = builder.get_object ("toolbutton_forward") as ToolButton;
+		forward.clicked += forward_clicked;
+		forward.set_sensitive(false);
+
+		view_list = builder.get_object ("toolbutton_view_list") as ToolButton;
+		view_list.clicked += view_list_clicked;
+
+		// The default
+		view_icons = builder.get_object ("toolbutton_view_icons") as ToolButton;
+		view_icons.clicked += view_icons_clicked;
+
+		search = builder.get_object ("entry_search") as Entry;
+		search.changed += search_changed;
+
+		sw_treeview = builder.get_object ("scrolledwindow_treeview") as ScrolledWindow;
+		treeview = builder.get_object ("treeview_results") as TreeView;
+		sw_iconview = builder.get_object ("scrolledwindow_iconview") as ScrolledWindow;
+		iconview = builder.get_object ("iconview_results") as IconView;
+		setup_ui_results (treeview, iconview);
+
+		sw_iconview.show_all ();
+		sw_treeview.hide ();
+	}
+
+	private void setup_ui_results (TreeView treeview, IconView iconview) {
+		// Setup treeview
+		store = new ListStore (5,
+							   typeof (Gdk.Pixbuf),  // Icon
+							   typeof (string),      // URN
+							   typeof (string),      // URL
+							   typeof (string),      // Filename
+							   typeof (string));     // Description
+		treeview.set_model (store);
+
+		// view.insert_column_with_attributes (-1, "URN", new CellRendererText (), "text", 0, null);
+		treeview.insert_column_with_attributes (-1, "", new CellRendererPixbuf (), "pixbuf", 0, null);
+		treeview.insert_column_with_attributes (-1, "Filename", new CellRendererText (), "text", 3, null);
+		treeview.row_activated += view_row_selected;
+
+		// Setup iconview
+		iconview.set_model (store);
+		iconview.set_item_width (96);
+		iconview.set_selection_mode (Gtk.SelectionMode.SINGLE);
+		iconview.set_pixbuf_column (0);
+		iconview.set_text_column (3);
+		//iconview.row_activated += view_row_selected;
+	}
+
+	private void search_changed (Entry entry) {
+		if (last_search_id != 0) {
+			Source.remove (last_search_id);
+		}
+
+		last_search_id = Timeout.add_seconds (1, search_run);
+	}
+
+	private bool search_run () {
+		// Need to escape this string
+		string query;
+
+		query = "SELECT ?u nie:url(?u) nfo:fileName(?u) tracker:coalesce(nie:title(?u), \"Unknown\") WHERE { ?u fts:match \"%s\" } ORDER BY DESC(fts:rank(?u)) OFFSET 0 LIMIT 100".printf ((search).text);
+		debug ("Query:'%s'", query);
+
+		try {
+			var result = tracker.SparqlQuery (query);
+
+			store.clear ();
+
+			var screen = window.get_screen ();
+			var theme = IconTheme.get_for_screen (screen);
+
+			for (int i = 0; i < result.length[0]; i++) {
+				debug ("--> %s", result[i,0]);
+				debug ("  --> %s", result[i,1]);
+				debug ("  --> %s", result[i,2]);
+
+				// Get Icon
+				var file = File.new_for_uri (result[i,1]);
+				var pixbuf = null as Gdk.Pixbuf;
+
+				if (file.query_exists (null)) {
+					try {
+						var file_info = file.query_info ("standard::icon", 
+														 FileQueryInfoFlags.NONE, 
+														 null);
+
+						if (file_info != null) {
+							var icon = file_info.get_icon ();
+
+							if (icon != null) {
+								//var names = ((ThemedIcon) icon).get_names ();
+
+								// See bug #618574
+								// var icon_info = theme.choose_icon (names, 48, IconLookupFlags.USE_BUILTIN);
+
+								// if (icon_info != null) {
+									// try {
+									// 	pixbuf = icon_info.load_icon ();
+									// } catch (GLib.Error e) {
+										// Do something
+									// }
+								// }
+							}
+						}
+					} catch (GLib.Error e) {
+						// Do something
+					}
+				}
+
+				if (pixbuf == null) {
+					try {
+						// pixbuf = theme.load_icon (theme.get_example_icon_name (), 48, IconLookupFlags.USE_BUILTIN);
+						pixbuf = theme.load_icon ("text-x-generic", 48, IconLookupFlags.USE_BUILTIN);
+					} catch (GLib.Error e) {
+						// Do something
+					}
+				}
+
+				// Insert into model
+				TreeIter iter;
+
+				store.append (out iter);
+				store.set (iter, 
+						   0, pixbuf,
+						   1, result[i,0], 
+						   2, result[i,1], 
+						   3, result[i,2], 
+						   -1);
+			}
+		} catch (DBus.Error e) {
+			// Do nothing
+		}
+
+		last_search_id = 0;
+
+		return false;
+	}
+
+	private void forward_clicked () {
+		// Do nothing
+	}
+
+	private void back_clicked () {
+		// Do nothing
+	}
+
+	private void view_list_clicked () {
+		sw_iconview.hide ();
+		sw_treeview.show_all ();
+	}
+
+	private void view_icons_clicked () {
+		sw_iconview.show_all ();
+		sw_treeview.hide ();
+	}
+
+	private void view_row_selected (TreeView view, TreePath path, TreeViewColumn column) {
+		TreeIter iter;
+
+		var model = view.get_model ();
+		model.get_iter (out iter, path);
+
+		weak string filename;
+		model.get (iter, 1, out filename);
+		
+		debug ("Selected filename:'%s'", filename);
+	}
+}
+
+static int main (string[] args) {
+	Gtk.init (ref args);
+
+	Needle n = new Needle();
+	n.show();
+	Gtk.main ();
+
+	return 0;
+}
+
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