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<tt>Rémi Denis-Courmont wrote:</tt>
<blockquote cite="mid:200909012314.45188.remi@remlab.net" type="cite">
  <pre wrap="">Le mardi 1 septembre 2009 23:04:22 Nick Pope, vous avez écrit :
  </pre>
  <blockquote type="cite">
    <pre wrap="">Window roles can be used when configuring window managers to help users
place their windows and dialogs according to their preference.  This is
particularly useful for some of the *box window managers.
---
 modules/gui/qt4/components/open_panels.cpp         |    1 +
 modules/gui/qt4/components/playlist/playlist.cpp   |    1 +
 modules/gui/qt4/components/preferences_widgets.cpp |    1 +
 modules/gui/qt4/dialogs/bookmarks.cpp              |    1 +
 modules/gui/qt4/dialogs/convert.cpp                |    1 +
 modules/gui/qt4/dialogs/errors.cpp                 |    1 +
 modules/gui/qt4/dialogs/extended.cpp               |    1 +
 modules/gui/qt4/dialogs/external.cpp               |    2 ++
 modules/gui/qt4/dialogs/gototime.cpp               |    1 +
 modules/gui/qt4/dialogs/help.cpp                   |    3 +++
 modules/gui/qt4/dialogs/mediainfo.cpp              |    1 +
 modules/gui/qt4/dialogs/messages.cpp               |    1 +
 modules/gui/qt4/dialogs/open.cpp                   |    1 +
 modules/gui/qt4/dialogs/openurl.cpp                |    1 +
 modules/gui/qt4/dialogs/playlist.cpp               |    1 +
 modules/gui/qt4/dialogs/plugins.cpp                |    1 +
 modules/gui/qt4/dialogs/preferences.cpp            |    1 +
 modules/gui/qt4/dialogs/sout.cpp                   |    1 +
 modules/gui/qt4/dialogs/toolbar.cpp                |    1 +
 modules/gui/qt4/main_interface.cpp                 |    2 ++
 modules/video_output/xcb/window.c                  |    5 +++++
 21 files changed, 29 insertions(+), 0 deletions(-)

diff --git a/modules/gui/qt4/components/open_panels.cpp
b/modules/gui/qt4/components/open_panels.cpp index 59e42b0..c130c6c 100644
--- a/modules/gui/qt4/components/open_panels.cpp
+++ b/modules/gui/qt4/components/open_panels.cpp
@@ -1304,6 +1304,7 @@ void CaptureOpenPanel::advancedDialog()
     /* New Adv Prop dialog */
     adv = new QDialog( this );
     adv->setWindowTitle( qtr( "Advanced Options" ) );
+    adv->setWindowRole( "vlc-advanced-options" );

     /* A main Layout with a Frame */
     QVBoxLayout *mainLayout = new QVBoxLayout( adv );
diff --git a/modules/gui/qt4/components/playlist/playlist.cpp
b/modules/gui/qt4/components/playlist/playlist.cpp index 8ad5d11..4ae5a30
100644
--- a/modules/gui/qt4/components/playlist/playlist.cpp
+++ b/modules/gui/qt4/components/playlist/playlist.cpp
@@ -115,6 +115,7 @@ PlaylistWidget::PlaylistWidget( intf_thread_t *_p_i ) :
p_intf ( _p_i )

     setAcceptDrops( true );
     setWindowTitle( qtr( "Playlist" ) );
+    setWindowRole( "vlc-playlist" );
     setWindowIcon( QApplication::windowIcon() );
 }

diff --git a/modules/gui/qt4/components/preferences_widgets.cpp
b/modules/gui/qt4/components/preferences_widgets.cpp index a96e437..20b65d4
100644
--- a/modules/gui/qt4/components/preferences_widgets.cpp
+++ b/modules/gui/qt4/components/preferences_widgets.cpp
@@ -1381,6 +1381,7 @@ KeyInputDialog::KeyInputDialog( QTreeWidget *_table,
     table = _table;
     setWindowTitle( b_global ? qtr( "Global" ): ""
                     + qtr( "Hotkey for " ) + keyToChange );
+    setWindowRole( "vlc-key-input" );

     vLayout = new QVBoxLayout( this );
     selected = new QLabel( qtr( "Press the new keys for " ) + keyToChange
); diff --git a/modules/gui/qt4/dialogs/bookmarks.cpp
b/modules/gui/qt4/dialogs/bookmarks.cpp index 9fa7615..950f724 100644
--- a/modules/gui/qt4/dialogs/bookmarks.cpp
+++ b/modules/gui/qt4/dialogs/bookmarks.cpp
@@ -38,6 +38,7 @@ BookmarksDialog::BookmarksDialog( intf_thread_t *_p_intf
):QVLCFrame( _p_intf ) setWindowFlags( Qt::Tool );
     setWindowOpacity( config_GetFloat( p_intf, "qt-opacity" ) );
     setWindowTitle( qtr( "Edit Bookmarks" ) );
+    setWindowRole( "vlc-bookmarks" );

     QGridLayout *layout = new QGridLayout( this );

diff --git a/modules/gui/qt4/dialogs/convert.cpp
b/modules/gui/qt4/dialogs/convert.cpp index 332aa85..cd2c8a8 100644
--- a/modules/gui/qt4/dialogs/convert.cpp
+++ b/modules/gui/qt4/dialogs/convert.cpp
@@ -42,6 +42,7 @@ ConvertDialog::ConvertDialog( QWidget *parent,
intf_thread_t *_p_intf,

               : QVLCDialog( parent, _p_intf )

 {
     setWindowTitle( qtr( "Convert" ) );
+    setWindowRole( "vlc-convert" );

     QGridLayout *mainLayout = new QGridLayout( this );
     SoutInputBox *inputBox = new SoutInputBox( this );
diff --git a/modules/gui/qt4/dialogs/errors.cpp
b/modules/gui/qt4/dialogs/errors.cpp index a2bd94f..2dd0b8b 100644
--- a/modules/gui/qt4/dialogs/errors.cpp
+++ b/modules/gui/qt4/dialogs/errors.cpp
@@ -40,6 +40,7 @@ ErrorsDialog::ErrorsDialog( QWidget *parent,
intf_thread_t *_p_intf )

              : QVLCDialog( parent, _p_intf )

 {
     setWindowTitle( qtr( "Errors" ) );
+    setWindowRole( "vlc-errors" );
     resize( 500 , 300 );

     QGridLayout *layout = new QGridLayout( this );
diff --git a/modules/gui/qt4/dialogs/extended.cpp
b/modules/gui/qt4/dialogs/extended.cpp index ffc34f0..f4fe68b 100644
--- a/modules/gui/qt4/dialogs/extended.cpp
+++ b/modules/gui/qt4/dialogs/extended.cpp
@@ -40,6 +40,7 @@ ExtendedDialog::ExtendedDialog( intf_thread_t *_p_intf ):
QVLCFrame( _p_intf ) setWindowFlags( Qt::Tool );
     setWindowOpacity( config_GetFloat( p_intf, "qt-opacity" ) );
     setWindowTitle( qtr( "Adjustments and Effects" ) );
+    setWindowRole( "vlc-extended" );

     QGridLayout *layout = new QGridLayout( this );
     layout->setLayoutMargins( 0, 2, 0, 1, 1 );
diff --git a/modules/gui/qt4/dialogs/external.cpp
b/modules/gui/qt4/dialogs/external.cpp index 69fa27e..f14586a 100644
--- a/modules/gui/qt4/dialogs/external.cpp
+++ b/modules/gui/qt4/dialogs/external.cpp
@@ -106,6 +106,7 @@ void DialogHandler::requestLogin (vlc_object_t *, void
*value) QLayout *layout = new QVBoxLayout (dialog);

     dialog->setWindowTitle (qfu(data->title));
+    dialog->setWindowRole ("vlc-login");
     layout->setMargin (2);

     /* User name and password fields */
@@ -185,6 +186,7 @@ QVLCProgressDialog::QVLCProgressDialog (DialogHandler
*parent, {
     if (data->title != NULL)
         setWindowTitle (qfu(data->title));
+    setWindowRole ("vlc-progress");
     setMinimumDuration (0);

     connect (this, SIGNAL(progressed(int)), SLOT(setValue(int)));
diff --git a/modules/gui/qt4/dialogs/gototime.cpp
b/modules/gui/qt4/dialogs/gototime.cpp index 78ecbc1..5832acd 100644
--- a/modules/gui/qt4/dialogs/gototime.cpp
+++ b/modules/gui/qt4/dialogs/gototime.cpp
@@ -41,6 +41,7 @@ GotoTimeDialog::GotoTimeDialog( QWidget *parent,
intf_thread_t *_p_intf) {
     setWindowFlags( Qt::Tool );
     setWindowTitle( qtr( "Go to Time" ) );
+    setWindowRole( "vlc-goto-time" );

     QGridLayout *mainLayout = new QGridLayout( this );
     mainLayout->setSizeConstraint( QLayout::SetFixedSize );
diff --git a/modules/gui/qt4/dialogs/help.cpp
b/modules/gui/qt4/dialogs/help.cpp index edcba52..c793467 100644
--- a/modules/gui/qt4/dialogs/help.cpp
+++ b/modules/gui/qt4/dialogs/help.cpp
@@ -53,6 +53,7 @@ HelpDialog::HelpDialog( intf_thread_t *_p_intf ) :
QVLCFrame( _p_intf )

 {
     setWindowTitle( qtr( "Help" ) );
+    setWindowRole( "vlc-help" );
     setMinimumSize( 350, 300 );

     QGridLayout *layout = new QGridLayout( this );
@@ -85,6 +86,7 @@ AboutDialog::AboutDialog( QWidget *parent, intf_thread_t
*_p_intf)

             : QVLCDialog( parent, _p_intf )

 {
     setWindowTitle( qtr( "About" ) );
+    setWindowRole( "vlc-about" );
     resize( 600, 500 );
     setMinimumSize( 600, 500 );

@@ -201,6 +203,7 @@ UpdateDialog *UpdateDialog::instance = NULL;
 UpdateDialog::UpdateDialog( intf_thread_t *_p_intf ) : QVLCFrame( _p_intf
) {
     setWindowTitle( qtr( "VLC media player updates" ) );
+    setWindowRole( "vlc-update" );

     QGridLayout *layout = new QGridLayout( this );

diff --git a/modules/gui/qt4/dialogs/mediainfo.cpp
b/modules/gui/qt4/dialogs/mediainfo.cpp index eb3f242..371e878 100644
--- a/modules/gui/qt4/dialogs/mediainfo.cpp
+++ b/modules/gui/qt4/dialogs/mediainfo.cpp
@@ -48,6 +48,7 @@ MediaInfoDialog::MediaInfoDialog( intf_thread_t *_p_intf,
     isMainInputInfo = ( p_item == NULL );

     setWindowTitle( qtr( "Media Information" ) );
+    setWindowRole( "vlc-media-info" );

     /* TabWidgets and Tabs creation */
     infoTabW = new QTabWidget;
diff --git a/modules/gui/qt4/dialogs/messages.cpp
b/modules/gui/qt4/dialogs/messages.cpp index 9789cf7..06442e5 100644
--- a/modules/gui/qt4/dialogs/messages.cpp
+++ b/modules/gui/qt4/dialogs/messages.cpp
@@ -73,6 +73,7 @@ MessagesDialog::MessagesDialog( intf_thread_t *_p_intf)

                : QVLCFrame( _p_intf )

 {
     setWindowTitle( qtr( "Messages" ) );
+    setWindowRole( "vlc-messages" );

     /* General widgets */
     QGridLayout *mainLayout = new QGridLayout( this );
diff --git a/modules/gui/qt4/dialogs/open.cpp
b/modules/gui/qt4/dialogs/open.cpp index 487745c..ceb356f 100644
--- a/modules/gui/qt4/dialogs/open.cpp
+++ b/modules/gui/qt4/dialogs/open.cpp
@@ -78,6 +78,7 @@ OpenDialog::OpenDialog( QWidget *parent,
     /* Basic Creation of the Window */
     ui.setupUi( this );
     setWindowTitle( qtr( "Open Media" ) );
+    setWindowRole( "vlc-open-media" );
     setWindowModality( Qt::WindowModal );

     /* Tab definition and creation */
diff --git a/modules/gui/qt4/dialogs/openurl.cpp
b/modules/gui/qt4/dialogs/openurl.cpp index 49a791b..24f4adc 100644
--- a/modules/gui/qt4/dialogs/openurl.cpp
+++ b/modules/gui/qt4/dialogs/openurl.cpp
@@ -60,6 +60,7 @@ OpenUrlDialog::OpenUrlDialog( QWidget *parent,
         QVLCDialog( parent, _p_intf ), bClipboard( _bClipboard )
 {
     setWindowTitle( qtr( "Open URL" ) );
+    setWindowRole( "vlc-open-url" );

     /* Buttons */
     QPushButton *but;
diff --git a/modules/gui/qt4/dialogs/playlist.cpp
b/modules/gui/qt4/dialogs/playlist.cpp index 2736e52..2b51810 100644
--- a/modules/gui/qt4/dialogs/playlist.cpp
+++ b/modules/gui/qt4/dialogs/playlist.cpp
@@ -41,6 +41,7 @@ PlaylistDialog::PlaylistDialog( intf_thread_t *_p_intf )
     QWidget *main = new QWidget( this );
     setCentralWidget( main );
     setWindowTitle( qtr( "Playlist" ) );
+    setWindowRole( "vlc-playlist" );
     setWindowOpacity( config_GetFloat( p_intf, "qt-opacity" ) );

     QHBoxLayout *l = new QHBoxLayout( centralWidget() );
diff --git a/modules/gui/qt4/dialogs/plugins.cpp
b/modules/gui/qt4/dialogs/plugins.cpp index 1575ca0..9ab3e36 100644
--- a/modules/gui/qt4/dialogs/plugins.cpp
+++ b/modules/gui/qt4/dialogs/plugins.cpp
@@ -43,6 +43,7 @@ PluginDialog *PluginDialog::instance = NULL;
 PluginDialog::PluginDialog( intf_thread_t *_p_intf ) : QVLCFrame( _p_intf
) {
     setWindowTitle( qtr( "Plugins and extensions" ) );
+    setWindowRole( "vlc-plugins" );
     QGridLayout *layout = new QGridLayout( this );

     /* Main Tree for modules */
diff --git a/modules/gui/qt4/dialogs/preferences.cpp
b/modules/gui/qt4/dialogs/preferences.cpp index 89864d7..150dea8 100644
--- a/modules/gui/qt4/dialogs/preferences.cpp
+++ b/modules/gui/qt4/dialogs/preferences.cpp
@@ -44,6 +44,7 @@ PrefsDialog::PrefsDialog( QWidget *parent, intf_thread_t
*_p_intf ) {
     QGridLayout *main_layout = new QGridLayout( this );
     setWindowTitle( qtr( "Preferences" ) );
+    setWindowRole( "vlc-preferences" );

     /* Whether we want it or not, we need to destroy on close to get
        consistency when reset */
diff --git a/modules/gui/qt4/dialogs/sout.cpp
b/modules/gui/qt4/dialogs/sout.cpp index ee603e5..2b99389 100644
--- a/modules/gui/qt4/dialogs/sout.cpp
+++ b/modules/gui/qt4/dialogs/sout.cpp
@@ -40,6 +40,7 @@ SoutDialog::SoutDialog( QWidget *parent, intf_thread_t
*_p_intf, const QString&

            : QVLCDialog( parent,  _p_intf )

 {
     setWindowTitle( qtr( "Stream Output" ) );
+    setWindowRole( "vlc-stream-output" );

     /* UI stuff */
     ui.setupUi( this );
diff --git a/modules/gui/qt4/dialogs/toolbar.cpp
b/modules/gui/qt4/dialogs/toolbar.cpp index f3a6ca3..0f67025 100644
--- a/modules/gui/qt4/dialogs/toolbar.cpp
+++ b/modules/gui/qt4/dialogs/toolbar.cpp
@@ -45,6 +45,7 @@ ToolbarEditDialog::ToolbarEditDialog( QWidget *_w,
intf_thread_t *_p_intf)

                   : QVLCDialog( _w,  _p_intf )

 {
     setWindowTitle( qtr( "Toolbars Editor" ) );
+    setWindowRole( "vlc-toolbars-editor" );
     QGridLayout *mainLayout = new QGridLayout( this );
     setMinimumWidth( 600 );
     setAttribute( Qt::WA_DeleteOnClose );
diff --git a/modules/gui/qt4/main_interface.cpp
b/modules/gui/qt4/main_interface.cpp index 1807f3c..504d161 100644
--- a/modules/gui/qt4/main_interface.cpp
+++ b/modules/gui/qt4/main_interface.cpp
@@ -105,6 +105,7 @@ MainInterface::MainInterface( intf_thread_t *_p_intf )
: QVLCMW( _p_intf ) /* Main settings */
     setFocusPolicy( Qt::StrongFocus );
     setAcceptDrops( true );
+    setWindowRole( "vlc-main" );
     setWindowIcon( QApplication::windowIcon() );
     setWindowOpacity( config_GetFloat( p_intf, "qt-opacity" ) );

@@ -605,6 +606,7 @@ int MainInterface::privacyDialog( QList<ConfigControl
*> *controls ) QDialog *privacy = new QDialog( this );

     privacy->setWindowTitle( qtr( "Privacy and Network Policies" ) );
+    privacy->setWindowRole( "vlc-privacy" );

     QGridLayout *gLayout = new QGridLayout( privacy );

diff --git a/modules/video_output/xcb/window.c
b/modules/video_output/xcb/window.c index 5c9bd4a..5a17ba5 100644
--- a/modules/video_output/xcb/window.c
+++ b/modules/video_output/xcb/window.c
@@ -266,6 +266,8 @@ static int Open (vlc_object_t *obj)
         = intern_string (conn, "_NET_WM_NAME");
     xcb_intern_atom_cookie_t net_wm_icon_name_ck
         = intern_string (conn, "_NET_WM_ICON_NAME");
+    xcb_intern_atom_cookie_t wm_window_role_ck
+        = intern_string (conn, "WM_WINDOW_ROLE");

     xcb_atom_t utf8 = get_atom (conn, utf8_string_ck);

@@ -282,6 +284,9 @@ static int Open (vlc_object_t *obj)
     xcb_atom_t net_wm_icon_name = get_atom (conn, net_wm_icon_name_ck);
     set_string (conn, window, utf8, net_wm_icon_name, _("VLC"));

+    xcb_atom_t wm_window_role = get_atom (conn, wm_window_role_ck);
+    set_string (conn, window, utf8, wm_window_role, "vlc-xcb");
    </pre>
  </blockquote>
  <pre wrap=""><!---->It should probably be set_ascii_prop() instead of set_string():

| The client must set the WM_WINDOW_ROLE property to a string that
| uniquely identifies that window among all windows that have the same
| client leader window. The property must: 
|  * be of type STRING; 
|  * be of format 8; and 
|  * contain a string restricted to the XPCS characters, encoded in
|    ISO 8859-1.

And I don't think "xcb" has anything to do with the role of the window... 
"vlc-video" seems more logical to me.

  </pre>
</blockquote>
<tt>Thanks for the help.  Admittedly I am jumping in at the deep end
with no real experience of ICCCM, Qt or XCB!  But it is a relatively
simple thing :)<br>
<br>
New patch coming...<br>
</tt>
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