WindowServer+LibGUI: Expose raw scroll wheel values to applications

This is useful, for instance, in games in which you can switch held
items using the scroll wheel. In order to implement this, they
previously would have to either add a hard-coded division by 4, or look
up your mouse settings to adjust correctly.

This commit adds an MouseEvent.wheel_raw_delta_x() and
MouseEvent.wheel_raw_delta_y().

2 files changed, 6 insertions, 2 deletions

diff --git a/Userland/Applications/PixelPaint/ImageEditor.cpp b/Userland/Applications/PixelPaint/ImageEditor.cpp
index 72f0574e9f..9718bfd3c6 100644
--- a/Userland/Applications/PixelPaint/ImageEditor.cpp
+++ b/Userland/Applications/PixelPaint/ImageEditor.cpp
@@ -267,6 +267,8 @@ GUI::MouseEvent ImageEditor::event_with_pan_and_scale_applied(GUI::MouseEvent co
         event.modifiers(),
         event.wheel_delta_x(),
         event.wheel_delta_y(),
+        event.wheel_raw_delta_x(),
+        event.wheel_raw_delta_y(),
     };
 }
 
@@ -282,6 +284,8 @@ GUI::MouseEvent ImageEditor::event_adjusted_for_layer(GUI::MouseEvent const& eve
         event.modifiers(),
         event.wheel_delta_x(),
         event.wheel_delta_y(),
+        event.wheel_raw_delta_x(),
+        event.wheel_raw_delta_y(),
     };
 }
 
diff --git a/Userland/Applications/Spreadsheet/SpreadsheetView.cpp b/Userland/Applications/Spreadsheet/SpreadsheetView.cpp
index f37ebd9ef6..ce8b46665f 100644
--- a/Userland/Applications/Spreadsheet/SpreadsheetView.cpp
+++ b/Userland/Applications/Spreadsheet/SpreadsheetView.cpp
@@ -202,7 +202,7 @@ void InfinitelyScrollableTableView::mousedown_event(GUI::MouseEvent& event)
         else if (m_is_hovering_extend_zone)
             m_is_dragging_for_extend = true;
         auto rect = content_rect_minus_scrollbars(m_target_cell);
-        GUI::MouseEvent adjusted_event = { (GUI::Event::Type)event.type(), rect.center(), event.buttons(), event.button(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y() };
+        GUI::MouseEvent adjusted_event = { (GUI::Event::Type)event.type(), rect.center(), event.buttons(), event.button(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y(), event.wheel_raw_delta_x(), event.wheel_raw_delta_y() };
         AbstractTableView::mousedown_event(adjusted_event);
     } else {
         AbstractTableView::mousedown_event(event);
@@ -239,7 +239,7 @@ void InfinitelyScrollableTableView::mouseup_event(GUI::MouseEvent& event)
     m_has_committed_to_extending = false;
     if (m_is_hovering_cut_zone || m_is_hovering_extend_zone) {
         auto rect = content_rect_minus_scrollbars(m_target_cell);
-        GUI::MouseEvent adjusted_event = { (GUI::Event::Type)event.type(), rect.center(), event.buttons(), event.button(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y() };
+        GUI::MouseEvent adjusted_event = { (GUI::Event::Type)event.type(), rect.center(), event.buttons(), event.button(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y(), event.wheel_raw_delta_x(), event.wheel_raw_delta_y() };
         TableView::mouseup_event(adjusted_event);
     } else {
         TableView::mouseup_event(event);