[cheese/shareable-media] Add sharing videos and pictures support

[Patricia Santana Cruz <patriciasc src gnome org>]

commit e4bc2b671501a52b0923d326554d3df5f6edc21a
Author: Patricia Santana Cruz <patriciasantanacruz gmail com>
Date:   Thu Dec 22 16:56:26 2011 +0000

    Add sharing videos and pictures support

 Makefile.am                     |    1 +
 data/cheese-actions.ui          |   10 ++++++
 src/cheese-shareable-media.vala |   41 ++++++++++++++++++++++++
 src/cheese-window.vala          |   66 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 118 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 29c96ab..6b6db65 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -190,6 +190,7 @@ cheese_SOURCES = \
 	src/cheese-preferences.vala \
 	src/cheese-window.vala \
 	src/cheese-main.vala \
+        src/cheese-shareable-media.vala \
 	src/thumbview/cheese-thumb-view.c \
 	src/thumbview/cheese-thumbnail.c \
 	src/thumbview/eog-thumb-nav.c
diff --git a/data/cheese-actions.ui b/data/cheese-actions.ui
index 0ee570a..50d17e9 100644
--- a/data/cheese-actions.ui
+++ b/data/cheese-actions.ui
@@ -64,6 +64,14 @@
           <accelerator key="O" modifiers="GDK_CONTROL_MASK"/>
         </child>
         <child>
+          <object class="GtkAction" id="share">
+            <property name="name">Share</property>
+            <property name="label" translatable="yes">Shareâ</property>
+            <signal name="activate" handler="cheese_main_window_on_files_share"/>
+          </object>
+          <accelerator key="H" modifiers="GDK_CONTROL_MASK"/>
+        </child>
+        <child>
           <object class="GtkAction" id="save_as">
             <property name="name">SaveAs</property>
             <property name="label" translatable="yes">Save _Asâ</property>
@@ -253,6 +261,8 @@
       <popup name="thumbnail_popup" id="thumbnail_popup">
         <menuitem action="open"/>
         <separator/>
+        <menuitem action="share"/>
+        <separator/>
         <menuitem action="save_as"/>
         <separator/>
         <menuitem action="move_to_trash"/>
diff --git a/src/cheese-shareable-media.vala b/src/cheese-shareable-media.vala
new file mode 100644
index 0000000..d1dec06
--- /dev/null
+++ b/src/cheese-shareable-media.vala
@@ -0,0 +1,41 @@
+/* Used for sharing images or videos within different technologies
+ * through nautilus-sendto
+ */
+namespace ShareableMedia {
+  private const string SENDTO_EXEC = "nautilus-sendto";
+
+  public void files_share(Cheese.MainWindow mainWindow, GLib.List<GLib.File> files)
+  {
+    if (mainWindow == null)
+      stdout.printf ("Test: NULL mainWindow\n");
+
+    if (files.length () == 0)
+        return;
+
+    string[] argv = new string[files.length ()+ 1];
+    argv[0] = SENDTO_EXEC;
+
+    for (int i = 0; i < files.length (); i++)
+    {
+      argv[i + 1] = files<GLib.File>.nth (i).data.get_path ();
+    }
+
+    try {
+      mainWindow.set_busy_cursor();
+
+      Pid child_pid;
+      Process.spawn_async(
+          "/",
+          argv,
+          null,
+          SpawnFlags.SEARCH_PATH,
+          null,
+          out child_pid);
+
+      mainWindow.set_normal_cursor();
+    } catch (Error err) {
+      mainWindow.set_normal_cursor();
+      stdout.printf ("Unable to launch nautilus-sendto\n");
+    }
+  }
+}
diff --git a/src/cheese-window.vala b/src/cheese-window.vala
index d262215..46bcdb7 100644
--- a/src/cheese-window.vala
+++ b/src/cheese-window.vala
@@ -71,6 +71,7 @@ public class Cheese.MainWindow : Gtk.Window
 
   private Clutter.Box           current_effects_grid;
   private int                current_effects_page = 0;
+  private int                busy_counter = 0;
   private ArrayList<Clutter.Box> effects_grids;
 
   private Gtk.Action       take_photo_action;
@@ -341,6 +342,20 @@ public class Cheese.MainWindow : Gtk.Window
   }
 
   /**
+   * Share the selected file(s) in the thumbview.
+   *
+   * A dialog is shown to the user, where the technology for sharing the
+   * image or video can be selected.
+   *
+   * @param action the action that emitted the signal.
+   */
+  [CCode (instance_pos = -1)]
+  public void on_files_share (Gtk.Action action)
+  {
+    ShareableMedia.files_share(this, thumb_view.get_selected_images_list ());
+  }
+
+  /**
    * Save the selected file in the thumbview to an alternate storage location.
    *
    * A file chooser dialog is shown to the user, asking where the file should
@@ -484,6 +499,56 @@ public class Cheese.MainWindow : Gtk.Window
   }
 
   /**
+   * Change cursor form to a watch when Cheese is busy doing a sharing
+   * operation.
+   */
+  public void set_busy_cursor()
+  {
+    if (busy_counter++ > 0)
+      return;
+
+    get_window().set_cursor(new Gdk.Cursor(Gdk.CursorType.WATCH));
+    spin_event_loop(10);
+  }
+
+  /**
+   * Change cursor form back to normal when Cheese is not any longer busy with a
+   * sharing operation.
+   */
+  public void set_normal_cursor()
+  {
+    if (busy_counter <= 0) {
+      busy_counter = 0;
+      return;
+    } else if (--busy_counter > 0) {
+      return;
+    }
+
+    get_window().set_cursor(new Gdk.Cursor(Gdk.CursorType.LEFT_PTR));
+    spin_event_loop(10);
+  }
+
+  // Testing
+  public bool spin_event_loop(int max = -1)
+  {
+    if (max == 0)
+      return true;
+
+    while (Gtk.events_pending())
+    {
+      if (Gtk.main_iteration())
+        return false;
+
+      if (max > 0)
+      {
+        if (--max <= 0)
+          break;
+      }
+    }
+    return true;
+  }
+
+  /**
    * Make the media capture mode actions sensitive.
    */
   private void enable_mode_change ()
@@ -1255,6 +1320,7 @@ public class Cheese.MainWindow : Gtk.Window
                                     "help_contents",
                                     "about",
                                     "open",
+                                    "share",
                                     "save_as",
                                     "move_to_trash",
                                     "delete",