From c04dcc2e7d834218ef2d4194331e383402495ae1 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 10 Apr 2024 20:07:22 +0200
Subject: Adding upstream version 2:20.4+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 xbmc/windowing/wayland/InputProcessorTouch.cpp | 130 +++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 xbmc/windowing/wayland/InputProcessorTouch.cpp

(limited to 'xbmc/windowing/wayland/InputProcessorTouch.cpp')

diff --git a/xbmc/windowing/wayland/InputProcessorTouch.cpp b/xbmc/windowing/wayland/InputProcessorTouch.cpp
new file mode 100644
index 0000000..a664e32
--- /dev/null
+++ b/xbmc/windowing/wayland/InputProcessorTouch.cpp
@@ -0,0 +1,130 @@
+/*
+ *  Copyright (C) 2017-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#include "InputProcessorTouch.h"
+
+#include "input/touch/generic/GenericTouchInputHandler.h"
+
+using namespace KODI::WINDOWING::WAYLAND;
+
+CInputProcessorTouch::CInputProcessorTouch(wayland::surface_t const& surface)
+: m_surface{surface}
+{
+}
+
+void CInputProcessorTouch::OnTouchDown(CSeat* seat,
+                                       std::uint32_t serial,
+                                       std::uint32_t time,
+                                       const wayland::surface_t& surface,
+                                       std::int32_t id,
+                                       double x,
+                                       double y)
+{
+  if (surface != m_surface)
+  {
+    return;
+  }
+
+  // Find free Kodi pointer number
+  int kodiPointer{-1};
+  // Not optimal, but irrelevant for the small number of iterations
+  for (int testPointer{0}; testPointer < CGenericTouchInputHandler::MAX_POINTERS; testPointer++)
+  {
+    if (std::all_of(m_touchPoints.cbegin(), m_touchPoints.cend(),
+                    [=](decltype(m_touchPoints)::value_type const& pair)
+                    {
+                      return (pair.second.kodiPointerNumber != testPointer);
+                    }))
+    {
+      kodiPointer = testPointer;
+      break;
+    }
+  }
+
+  if (kodiPointer != -1)
+  {
+    auto it = m_touchPoints.emplace(std::piecewise_construct, std::forward_as_tuple(id), std::forward_as_tuple(time, kodiPointer, x * m_coordinateScale, y * m_coordinateScale, 0.0f)).first;
+    SendTouchPointEvent(TouchInputDown, it->second);
+  }
+}
+
+void CInputProcessorTouch::OnTouchUp(CSeat* seat, std::uint32_t serial, std::uint32_t time, std::int32_t id)
+{
+  auto it = m_touchPoints.find(id);
+  if (it != m_touchPoints.end())
+  {
+    auto& point = it->second;
+    point.lastEventTime = time;
+    SendTouchPointEvent(TouchInputUp, point);
+    m_touchPoints.erase(it);
+  }
+}
+
+void CInputProcessorTouch::OnTouchMotion(CSeat* seat, std::uint32_t time, std::int32_t id, double x, double y)
+{
+  auto it = m_touchPoints.find(id);
+  if (it != m_touchPoints.end())
+  {
+    auto& point = it->second;
+    point.x = x * m_coordinateScale;
+    point.y = y * m_coordinateScale;
+    point.lastEventTime = time;
+    SendTouchPointEvent(TouchInputMove, point);
+  }
+}
+
+void CInputProcessorTouch::OnTouchCancel(CSeat* seat)
+{
+  AbortTouches();
+}
+
+void CInputProcessorTouch::OnTouchShape(CSeat* seat, std::int32_t id, double major, double minor)
+{
+  auto it = m_touchPoints.find(id);
+  if (it != m_touchPoints.end())
+  {
+    auto& point = it->second;
+    // Kodi only supports size without shape, so use average of both axes
+    point.size = ((major + minor) / 2.0) * m_coordinateScale;
+    UpdateTouchPoint(point);
+  }
+}
+
+CInputProcessorTouch::~CInputProcessorTouch() noexcept
+{
+  AbortTouches();
+}
+
+void CInputProcessorTouch::AbortTouches()
+{
+  // TouchInputAbort aborts for all pointers, so it does not matter which is specified
+  if (!m_touchPoints.empty())
+  {
+    SendTouchPointEvent(TouchInputAbort, m_touchPoints.begin()->second);
+  }
+  m_touchPoints.clear();
+}
+
+void CInputProcessorTouch::SendTouchPointEvent(TouchInput event, const TouchPoint& point)
+{
+  if (event == TouchInputMove)
+  {
+    for (auto const& point : m_touchPoints)
+    {
+      // Contrary to the docs, this must be called before HandleTouchInput or the
+      // position will not be updated and gesture detection will not work
+      UpdateTouchPoint(point.second);
+    }
+  }
+  CGenericTouchInputHandler::GetInstance().HandleTouchInput(event, point.x, point.y, point.lastEventTime * INT64_C(1000000), point.kodiPointerNumber, point.size);
+}
+
+void CInputProcessorTouch::UpdateTouchPoint(const TouchPoint& point)
+{
+  CGenericTouchInputHandler::GetInstance().UpdateTouchPointer(point.kodiPointerNumber, point.x, point.y, point.lastEventTime * INT64_C(1000000), point.size);
+}
-- 
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