Qt: Freeze+thaw the main window during nested operations.

As noted in main_window.cpp:

// Our event loop becomes nested whenever we call update_progress_dlg, which
// includes several places in file.c. The GTK+ UI stays out of trouble by
// showing a modal progress dialog. We attempt to do the equivalent below by
// disabling parts of the main window. At a minumum the ProgressFrame in the
// main status bar must remain accessible.

Move the freeze+thaw code from captureFileRetapStarted and
captureFileRetapFinished to its own set of member functions. Call them
when we {,un}mark and {,un}ignore packets and note that we should
probably call them elsewhere. Disable mark and ignore actions when we
freeze and restore their states when we thaw.

Bug: 11681
Change-Id: I6f015f7f5f6c98cd48ace2c87f43f48efe51a88b
Reviewed-on: https://code.wireshark.org/review/11690
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Gerald Combs <gerald@wireshark.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/ui/qt/main_window.h b/ui/qt/main_window.h
index 2fbf527c73..9c0a161247 100644
--- a/ui/qt/main_window.h
+++ b/ui/qt/main_window.h
@@ -140,6 +140,8 @@ private:
     QActionGroup *time_display_actions_;
     QActionGroup *time_precision_actions_;
     FunnelStatistics *funnel_statistics_;
+    QList<QPair<QAction *, bool> > freeze_actions_;
+    QWidget *freeze_focus_;
 
     bool capture_stopping_;
     bool capture_filter_valid_;
@@ -161,6 +163,9 @@ private:
 
     QWidget* getLayoutWidget(layout_pane_content_e type);
 
+    void freeze();
+    void thaw();
+
     void mergeCaptureFile();
     void importCaptureFile();
     void saveCaptureFile(capture_file *cf, bool dont_reopen);
@@ -176,6 +181,7 @@ private:
     void initShowHideMainWidgets();
     void initTimeDisplayFormatMenu();
     void initTimePrecisionFormatMenu();
+    void initFreezeActions();
 
     void setTitlebarForSelectedTreeRow();
     void setTitlebarForCaptureFile();