hob: add a progress indicator when you select 'view log'

- created a new file named "hobthreads.py", defining a thread
for opening the log file in a subprocess using subprocess module;
in the future I think we will add some other threads here, to
implement some other performance issues
- on "builddetailspage", "packageselectionpage" and "imagedetailspage"
I have changed the manner for opening the log file; it uses the thread
to open the file, and on main thread it creates a dialog to show a
progress bar, which pulses till the file is open
- this was added because when the log file is big, it takes time to
be opened; on the dialog you can use "Cancel" button to terminate the
process initiated to open the file

[YOCTO #2997]
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 14 insertions, 1 deletions

diff --git a/lib/bb/ui/crumbs/packageselectionpage.py b/lib/bb/ui/crumbs/packageselectionpage.py
index 17b1dfe3c..ac9cc7e13 100755
--- a/lib/bb/ui/crumbs/packageselectionpage.py
+++ b/lib/bb/ui/crumbs/packageselectionpage.py
@@ -26,6 +26,8 @@ from bb.ui.crumbs.hobcolor import HobColors
 from bb.ui.crumbs.hobwidget import HobViewTable, HobNotebook, HobAltButton, HobButton
 from bb.ui.crumbs.hoblistmodel import PackageListModel
 from bb.ui.crumbs.hobpages import HobPage
+from bb.ui.crumbs.hobthreads import OpeningLogThread
+from bb.ui.crumbs.hig import OpeningLogDialog
 
 #
 # PackageSelectionPage
@@ -167,7 +169,18 @@ class PackageSelectionPage (HobPage):
 
     def open_log_clicked_cb(self, button, log_file):
         if log_file:
-            os.system("xdg-open /%s" % log_file)
+            self.stop = False
+            dialog = OpeningLogDialog(title = "Opening Log",
+                parent = None,
+                flags = gtk.DIALOG_MODAL
+                        | gtk.DIALOG_DESTROY_WITH_PARENT
+                        | gtk.DIALOG_NO_SEPARATOR)
+            #create a thread to open log file
+            background = OpeningLogThread(dialog, log_file, self)
+            background.start()
+            response = dialog.run()
+            self.stop = True
+            background.join()
 
     def show_page(self, log_file):
         children = self.button_box.get_children() or []