diff options
Diffstat (limited to 'WebCore/platform/gtk/ScrollbarGtk.cpp')
| -rw-r--r-- | WebCore/platform/gtk/ScrollbarGtk.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/WebCore/platform/gtk/ScrollbarGtk.cpp b/WebCore/platform/gtk/ScrollbarGtk.cpp index 00c6ea0..0c3037a 100644 --- a/WebCore/platform/gtk/ScrollbarGtk.cpp +++ b/WebCore/platform/gtk/ScrollbarGtk.cpp @@ -1,5 +1,6 @@ /* * Copyright (C) 2007, 2009 Holger Hans Peter Freyther zecke@selfish.org + * Copyright (C) 2010 Gustavo Noronha Silva <gns@gnome.org> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -87,6 +88,32 @@ ScrollbarGtk::ScrollbarGtk(ScrollbarClient* client, ScrollbarOrientation orienta ScrollbarGtk::~ScrollbarGtk() { + if (m_adjustment) + detachAdjustment(); +} + +void ScrollbarGtk::attachAdjustment(GtkAdjustment* adjustment) +{ + if (platformWidget()) + return; + + if (m_adjustment) + detachAdjustment(); + + m_adjustment = adjustment; + + g_object_ref(m_adjustment); + g_signal_connect(m_adjustment, "value-changed", G_CALLBACK(ScrollbarGtk::gtkValueChanged), this); + + updateThumbProportion(); + updateThumbPosition(); +} + +void ScrollbarGtk::detachAdjustment() +{ + if (!m_adjustment) + return; + g_signal_handlers_disconnect_by_func(G_OBJECT(m_adjustment), (gpointer)ScrollbarGtk::gtkValueChanged, this); // For the case where we only operate on the GtkAdjustment it is best to @@ -98,6 +125,7 @@ ScrollbarGtk::~ScrollbarGtk() gtk_adjustment_changed(m_adjustment); gtk_adjustment_value_changed(m_adjustment); g_object_unref(m_adjustment); + m_adjustment = 0; } IntPoint ScrollbarGtk::getLocationInParentWindow(const IntRect& rect) |