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PKGBUILDs/extra/libreoffice-fresh/fix_gtk3_smooth_scolling.diff
Kevin Mihelich d538cb2d03 extra/libreoffice-fresh to 5.2.0-4
2016-08-28 20:33:06 +00:00

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From 3e60438dad304c487973fb8cdb50f3d94932af2e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
Date: Thu, 23 Jun 2016 17:32:11 +0100
Subject: Resolves: rhbz#1349501 gtk3: smooth scrolling events can be
disabled...
by the user with GDK_CORE_DEVICE_EVENTS=1, and so manage to disable their wheel
scrolling
Change-Id: I7df63f738983c90dea75b9f43a36133910446aba
(cherry picked from commit 7dfd50f947671d79b9119f10259857700d5728d8)
Resolves: rhbz#1349501 gtk3: smooth scrolling events can be disabled...
better fix, if we listen to the eventbox we get either SMOOTH scrolling
or not smooth events, not both. We get SMOOTH when supported, and not
if not supported so no need to reintroduce the miserable hack, which
doesn't work under wayland anyway
Change-Id: I993e71d3553322425a506cd93d812efe081bf3c9
Reviewed-on: https://gerrit.libreoffice.org/26645
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
diff --git a/vcl/unx/gtk3/gtk3gtkframe.cxx b/vcl/unx/gtk3/gtk3gtkframe.cxx
index e8d12e3..2b7ade6 100644
--- a/vcl/unx/gtk3/gtk3gtkframe.cxx
+++ b/vcl/unx/gtk3/gtk3gtkframe.cxx
@@ -1013,6 +1013,7 @@ void GtkSalFrame::InitCommon()
m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-failed", G_CALLBACK(signalDragFailed), this ));
m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-data-delete", G_CALLBACK(signalDragDelete), this ));
m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-data-get", G_CALLBACK(signalDragDataGet), this ));
+ m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "scroll-event", G_CALLBACK(signalScroll), this ));
g_signal_connect( G_OBJECT(m_pFixedContainer), "draw", G_CALLBACK(signalDraw), this );
g_signal_connect( G_OBJECT(m_pFixedContainer), "size-allocate", G_CALLBACK(sizeAllocated), this );
@@ -1038,7 +1039,6 @@ void GtkSalFrame::InitCommon()
g_signal_connect( G_OBJECT(m_pWindow), "key-release-event", G_CALLBACK(signalKey), this );
g_signal_connect( G_OBJECT(m_pWindow), "delete-event", G_CALLBACK(signalDelete), this );
g_signal_connect( G_OBJECT(m_pWindow), "window-state-event", G_CALLBACK(signalWindowState), this );
- g_signal_connect( G_OBJECT(m_pWindow), "scroll-event", G_CALLBACK(signalScroll), this );
g_signal_connect( G_OBJECT(m_pWindow), "leave-notify-event", G_CALLBACK(signalCrossing), this );
g_signal_connect( G_OBJECT(m_pWindow), "enter-notify-event", G_CALLBACK(signalCrossing), this );
g_signal_connect( G_OBJECT(m_pWindow), "visibility-notify-event", G_CALLBACK(signalVisibility), this );
@@ -2664,9 +2664,6 @@ gboolean GtkSalFrame::signalScroll( GtkWidget*, GdkEventScroll* pEvent, gpointer
{
UpdateLastInputEventTime(pEvent->time);
- if (pEvent->direction != GDK_SCROLL_SMOOTH)
- return false;
-
GtkSalFrame* pThis = static_cast<GtkSalFrame*>(frame);
SalWheelMouseEvent aEvent;
@@ -2679,36 +2676,74 @@ gboolean GtkSalFrame::signalScroll( GtkWidget*, GdkEventScroll* pEvent, gpointer
aEvent.mnY = (sal_uLong)pEvent->y;
aEvent.mnCode = GetMouseModCode( pEvent->state );
- // rhbz#1344042 "Traditionally" in gtk3 we tool a single up/down event as
- // equating to 3 scroll lines and a delta of 120. So scale the delta here
- // by 120 where a single mouse wheel click is an incoming delta_x of 1
- // and divide that by 40 to get the number of scrollines
- if (pEvent->delta_x != 0.0)
+ switch (pEvent->direction)
{
- aEvent.mnDelta = -pEvent->delta_x * 120;
- aEvent.mnNotchDelta = aEvent.mnDelta < 0 ? -1 : +1;
- if (aEvent.mnDelta == 0)
- aEvent.mnDelta = aEvent.mnNotchDelta;
- aEvent.mbHorz = true;
- aEvent.mnScrollLines = std::abs(aEvent.mnDelta) / 40;
- if (aEvent.mnScrollLines == 0)
- aEvent.mnScrollLines = 1;
+ case GDK_SCROLL_SMOOTH:
+ // rhbz#1344042 "Traditionally" in gtk3 we tool a single up/down event as
+ // equating to 3 scroll lines and a delta of 120. So scale the delta here
+ // by 120 where a single mouse wheel click is an incoming delta_x of 1
+ // and divide that by 40 to get the number of scrollines
+ if (pEvent->delta_x != 0.0)
+ {
+ aEvent.mnDelta = -pEvent->delta_x * 120;
+ aEvent.mnNotchDelta = aEvent.mnDelta < 0 ? -1 : +1;
+ if (aEvent.mnDelta == 0)
+ aEvent.mnDelta = aEvent.mnNotchDelta;
+ aEvent.mbHorz = true;
+ aEvent.mnScrollLines = std::abs(aEvent.mnDelta) / 40;
+ if (aEvent.mnScrollLines == 0)
+ aEvent.mnScrollLines = 1;
+
+ pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ }
- pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
- }
+ if (pEvent->delta_y != 0.0)
+ {
+ aEvent.mnDelta = -pEvent->delta_y * 120;
+ aEvent.mnNotchDelta = aEvent.mnDelta < 0 ? -1 : +1;
+ if (aEvent.mnDelta == 0)
+ aEvent.mnDelta = aEvent.mnNotchDelta;
+ aEvent.mbHorz = false;
+ aEvent.mnScrollLines = std::abs(aEvent.mnDelta) / 40;
+ if (aEvent.mnScrollLines == 0)
+ aEvent.mnScrollLines = 1;
+
+ pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ }
- if (pEvent->delta_y != 0.0)
- {
- aEvent.mnDelta = -pEvent->delta_y * 120;
- aEvent.mnNotchDelta = aEvent.mnDelta < 0 ? -1 : +1;
- if (aEvent.mnDelta == 0)
- aEvent.mnDelta = aEvent.mnNotchDelta;
- aEvent.mbHorz = false;
- aEvent.mnScrollLines = std::abs(aEvent.mnDelta) / 40;
- if (aEvent.mnScrollLines == 0)
- aEvent.mnScrollLines = 1;
+ break;
+
+ case GDK_SCROLL_UP:
+ aEvent.mnDelta = 120;
+ aEvent.mnNotchDelta = 1;
+ aEvent.mnScrollLines = 3;
+ aEvent.mbHorz = false;
+ pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ break;
+
+ case GDK_SCROLL_DOWN:
+ aEvent.mnDelta = -120;
+ aEvent.mnNotchDelta = -1;
+ aEvent.mnScrollLines = 3;
+ aEvent.mbHorz = false;
+ pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ break;
+
+ case GDK_SCROLL_LEFT:
+ aEvent.mnDelta = 120;
+ aEvent.mnNotchDelta = 1;
+ aEvent.mnScrollLines = 3;
+ aEvent.mbHorz = true;
+ pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ break;
- pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ case GDK_SCROLL_RIGHT:
+ aEvent.mnDelta = -120;
+ aEvent.mnNotchDelta = -1;
+ aEvent.mnScrollLines = 3;
+ aEvent.mbHorz = true;
+ pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ break;
}
return true;
--
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