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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/platform/gtk/WheelEventGtk.cpp | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/platform/gtk/WheelEventGtk.cpp')
-rw-r--r-- | Source/WebCore/platform/gtk/WheelEventGtk.cpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/Source/WebCore/platform/gtk/WheelEventGtk.cpp b/Source/WebCore/platform/gtk/WheelEventGtk.cpp new file mode 100644 index 0000000..fc6206f --- /dev/null +++ b/Source/WebCore/platform/gtk/WheelEventGtk.cpp @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. + * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "PlatformWheelEvent.h" +#include "Scrollbar.h" + +#include <gdk/gdk.h> + +namespace WebCore { + +// Keep this in sync with the other platform event constructors +PlatformWheelEvent::PlatformWheelEvent(GdkEventScroll* event) +{ + static const float delta = 1; + + m_deltaX = 0; + m_deltaY = 0; + + // Docs say an upwards scroll (away from the user) has a positive delta + switch (event->direction) { + case GDK_SCROLL_UP: + m_deltaY = delta; + break; + case GDK_SCROLL_DOWN: + m_deltaY = -delta; + break; + case GDK_SCROLL_LEFT: + m_deltaX = delta; + break; + case GDK_SCROLL_RIGHT: + m_deltaX = -delta; + break; + } + m_wheelTicksX = m_deltaX; + m_wheelTicksY = m_deltaY; + + m_position = IntPoint(static_cast<int>(event->x), static_cast<int>(event->y)); + m_globalPosition = IntPoint(static_cast<int>(event->x_root), static_cast<int>(event->y_root)); + m_granularity = ScrollByPixelWheelEvent; + m_isAccepted = false; + m_shiftKey = event->state & GDK_SHIFT_MASK; + m_ctrlKey = event->state & GDK_CONTROL_MASK; + m_altKey = event->state & GDK_MOD1_MASK; + m_metaKey = event->state & GDK_META_MASK; + + // FIXME: retrieve the user setting for the number of lines to scroll on each wheel event + m_deltaX *= static_cast<float>(Scrollbar::pixelsPerLineStep()); + m_deltaY *= static_cast<float>(Scrollbar::pixelsPerLineStep()); +} + +} |