Support 31 mouse buttons (with platform plugins xcb and xlib).

This commit includes changes for mouse button support within the XCB
and XLIB platform plugins. Support in other platform plugins will be
added in the future. The namespace update is prerequisite to compile
the the Plugins, and the update in qguiapplication.cpp is required for
the enhancements to actually work.

Task-number: QTBUG-22642
Change-Id: Ie18fca3b9c86d0b6abbf2103a4f8582e6ce83e7d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/src/plugins/platforms/xlib/qxlibwindow.cpp b/src/plugins/platforms/xlib/qxlibwindow.cpp
index e388f1054d..c14fadaaaa 100644
--- a/src/plugins/platforms/xlib/qxlibwindow.cpp
+++ b/src/plugins/platforms/xlib/qxlibwindow.cpp
@@ -221,6 +221,30 @@ void QXlibWindow::handleMouseEvent(QEvent::Type type, XButtonEvent *e)
             }
             return;
         }
+        case 8: button = Qt::BackButton; break;      // Also known as Qt::ExtraButton1
+        case 9: button = Qt::ForwardButton; break;   // Also known as Qt::ExtraButton2
+        case 10: button = Qt::ExtraButton3; break;
+        case 11: button = Qt::ExtraButton4; break;
+        case 12: button = Qt::ExtraButton5; break;
+        case 13: button = Qt::ExtraButton6; break;
+        case 14: button = Qt::ExtraButton7; break;
+        case 15: button = Qt::ExtraButton8; break;
+        case 16: button = Qt::ExtraButton9; break;
+        case 17: button = Qt::ExtraButton10; break;
+        case 18: button = Qt::ExtraButton11; break;
+        case 19: button = Qt::ExtraButton12; break;
+        case 20: button = Qt::ExtraButton13; break;
+        case 21: button = Qt::ExtraButton14; break;
+        case 22: button = Qt::ExtraButton15; break;
+        case 23: button = Qt::ExtraButton16; break;
+        case 24: button = Qt::ExtraButton17; break;
+        case 25: button = Qt::ExtraButton18; break;
+        case 26: button = Qt::ExtraButton19; break;
+        case 27: button = Qt::ExtraButton20; break;
+        case 28: button = Qt::ExtraButton21; break;
+        case 29: button = Qt::ExtraButton22; break;
+        case 30: button = Qt::ExtraButton23; break;
+        case 31: button = Qt::ExtraButton24; break;
         default: break;
         }
     }