Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 245 insertions, 0 deletions

diff --git a/widget/windows/InkCollector.cpp b/widget/windows/InkCollector.cpp
new file mode 100644
index 0000000000..4c2dfbf387
--- /dev/null
+++ b/widget/windows/InkCollector.cpp
@@ -0,0 +1,245 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=2 sw=2 et tw=78:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "InkCollector.h"
+
+// Msinkaut_i.c and Msinkaut.h should both be included
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms695519.aspx
+#include <msinkaut_i.c>
+
+StaticAutoPtr<InkCollector> InkCollector::sInkCollector;
+
+InkCollector::~InkCollector() {
+  Shutdown();
+  MOZ_ASSERT(!mCookie && !mEnabled && !mComInitialized && !mMarshaller &&
+             !mInkCollector && !mConnectionPoint && !mInkCollectorEvent);
+}
+
+void InkCollector::Initialize() {
+  // Possibly, we can use mConnectionPoint for checking,
+  // But if errors exist (perhaps COM object is unavailable),
+  // Initialize() will be called more times.
+  static bool sInkCollectorCreated = false;
+  if (sInkCollectorCreated) {
+    return;
+  }
+  sInkCollectorCreated = true;
+
+  // COM could get uninitialized due to previous initialization.
+  mComInitialized = SUCCEEDED(::CoInitialize(nullptr));
+
+  // Set up instance of InkCollectorEvent.
+  mInkCollectorEvent = new InkCollectorEvent();
+
+  // Set up a free threaded marshaler.
+  if (FAILED(::CoCreateFreeThreadedMarshaler(mInkCollectorEvent,
+                                             getter_AddRefs(mMarshaller)))) {
+    return;
+  }
+
+  // Create the ink collector.
+  if (FAILED(::CoCreateInstance(CLSID_InkCollector, NULL, CLSCTX_INPROC_SERVER,
+                                IID_IInkCollector,
+                                getter_AddRefs(mInkCollector)))) {
+    return;
+  }
+
+  // Set up connection between sink and InkCollector.
+  RefPtr<IConnectionPointContainer> connPointContainer;
+
+  // Get the connection point container.
+  if (SUCCEEDED(mInkCollector->QueryInterface(
+          IID_IConnectionPointContainer, getter_AddRefs(connPointContainer)))) {
+    // Find the connection point for Ink Collector events.
+    if (SUCCEEDED(connPointContainer->FindConnectionPoint(
+            __uuidof(_IInkCollectorEvents),
+            getter_AddRefs(mConnectionPoint)))) {
+      // Hook up sink to connection point.
+      if (SUCCEEDED(mConnectionPoint->Advise(mInkCollectorEvent, &mCookie))) {
+        OnInitialize();
+      }
+    }
+  }
+}
+
+void InkCollector::Shutdown() {
+  Enable(false);
+  if (mConnectionPoint) {
+    // Remove the connection of the sink to the Ink Collector.
+    mConnectionPoint->Unadvise(mCookie);
+    mCookie = 0;
+    mConnectionPoint = nullptr;
+  }
+  mInkCollector = nullptr;
+  mMarshaller = nullptr;
+  mInkCollectorEvent = nullptr;
+
+  // Let uninitialization get handled in a place where it got inited.
+  if (mComInitialized) {
+    CoUninitialize();
+    mComInitialized = false;
+  }
+}
+
+void InkCollector::OnInitialize() {
+  // Suppress all events to do not allow performance decreasing.
+  // https://msdn.microsoft.com/en-us/library/ms820347.aspx
+  mInkCollector->SetEventInterest(InkCollectorEventInterest::ICEI_AllEvents,
+                                  VARIANT_FALSE);
+
+  // Sets a value that indicates whether an object or control has interest in a
+  // specified event.
+  mInkCollector->SetEventInterest(
+      InkCollectorEventInterest::ICEI_CursorOutOfRange, VARIANT_TRUE);
+
+  // If the MousePointer property is set to IMP_Custom and the MouseIcon
+  // property is NULL, Then the ink collector no longer handles mouse cursor
+  // settings.
+  // https://msdn.microsoft.com/en-us/library/windows/desktop/ms700686.aspx
+  mInkCollector->put_MouseIcon(nullptr);
+  mInkCollector->put_MousePointer(InkMousePointer::IMP_Custom);
+
+  // This mode allows an ink collector to collect ink from any tablet attached
+  // to the Tablet PC. The Boolean value that indicates whether to use the mouse
+  // as an input device. If TRUE, the mouse is used for input.
+  // https://msdn.microsoft.com/en-us/library/ms820346.aspx
+  mInkCollector->SetAllTabletsMode(VARIANT_FALSE);
+
+  // Sets the value that specifies whether ink is rendered as it is drawn.
+  // VARIANT_TRUE to render ink as it is drawn on the display.
+  // VARIANT_FALSE to not have the ink appear on the display as strokes are
+  // made.
+  // https://msdn.microsoft.com/en-us/library/windows/desktop/dd314598.aspx
+  mInkCollector->put_DynamicRendering(VARIANT_FALSE);
+
+  // Set AutoRedraw to false to prevent repainting the ink when the window is
+  // invalidated.
+  mInkCollector->put_AutoRedraw(VARIANT_FALSE);
+}
+
+// Sets a value that specifies whether the InkCollector object collects pen
+// input. This property must be set to FALSE before setting or calling specific
+// properties and methods of the object.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms701721.aspx
+void InkCollector::Enable(bool aNewState) {
+  if (aNewState != mEnabled) {
+    if (mInkCollector) {
+      if (SUCCEEDED(mInkCollector->put_Enabled(aNewState ? VARIANT_TRUE
+                                                         : VARIANT_FALSE))) {
+        mEnabled = aNewState;
+      } else {
+        NS_WARNING("InkCollector did not change status successfully");
+      }
+    } else {
+      NS_WARNING("InkCollector should be exist");
+    }
+  }
+}
+
+HWND InkCollector::GetTarget() { return mTargetWindow; }
+
+void InkCollector::SetTarget(HWND aTargetWindow) {
+  NS_ASSERTION(aTargetWindow, "aTargetWindow should be exist");
+  if (aTargetWindow && (aTargetWindow != mTargetWindow)) {
+    Initialize();
+    if (mInkCollector) {
+      Enable(false);
+      if (SUCCEEDED(mInkCollector->put_hWnd((LONG_PTR)aTargetWindow))) {
+        mTargetWindow = aTargetWindow;
+      } else {
+        NS_WARNING("InkCollector did not change window property successfully");
+      }
+      Enable(true);
+    }
+  }
+}
+
+void InkCollector::ClearTarget() {
+  if (mTargetWindow && mInkCollector) {
+    Enable(false);
+    if (SUCCEEDED(mInkCollector->put_hWnd(0))) {
+      mTargetWindow = 0;
+    } else {
+      NS_WARNING("InkCollector did not clear window property successfully");
+    }
+  }
+}
+
+uint16_t InkCollector::GetPointerId() { return mPointerId; }
+
+void InkCollector::SetPointerId(uint16_t aPointerId) {
+  mPointerId = aPointerId;
+}
+
+void InkCollector::ClearPointerId() { mPointerId = 0; }
+
+// The display and the digitizer have quite different properties.
+// The display has CursorMustTouch, the mouse pointer alway touches the display
+// surface. The digitizer lists Integrated and HardProximity. When the stylus is
+// in the proximity of the tablet its movements are also detected. An external
+// tablet will only list HardProximity.
+bool InkCollectorEvent::IsHardProximityTablet(IInkTablet* aTablet) const {
+  if (aTablet) {
+    TabletHardwareCapabilities caps;
+    if (SUCCEEDED(aTablet->get_HardwareCapabilities(&caps))) {
+      return (TabletHardwareCapabilities::THWC_HardProximity & caps);
+    }
+  }
+  return false;
+}
+
+HRESULT __stdcall InkCollectorEvent::QueryInterface(REFIID aRiid,
+                                                    void** aObject) {
+  // Validate the input
+  if (!aObject) {
+    return E_POINTER;
+  }
+  HRESULT result = E_NOINTERFACE;
+  // This object supports IUnknown/IDispatch/IInkCollectorEvents
+  if ((IID_IUnknown == aRiid) || (IID_IDispatch == aRiid) ||
+      (DIID__IInkCollectorEvents == aRiid)) {
+    *aObject = this;
+    // AddRef should be called when we give info about interface
+    NS_ADDREF_THIS();
+    result = S_OK;
+  }
+  return result;
+}
+
+HRESULT InkCollectorEvent::Invoke(DISPID aDispIdMember, REFIID /*aRiid*/,
+                                  LCID /*aId*/, WORD /*wFlags*/,
+                                  DISPPARAMS* aDispParams,
+                                  VARIANT* /*aVarResult*/,
+                                  EXCEPINFO* /*aExcepInfo*/,
+                                  UINT* /*aArgErr*/) {
+  switch (aDispIdMember) {
+    case DISPID_ICECursorOutOfRange: {
+      if (aDispParams && aDispParams->cArgs) {
+        CursorOutOfRange(
+            static_cast<IInkCursor*>(aDispParams->rgvarg[0].pdispVal));
+      }
+      break;
+    }
+  }
+  return S_OK;
+}
+
+void InkCollectorEvent::CursorOutOfRange(IInkCursor* aCursor) const {
+  IInkTablet* curTablet = nullptr;
+  if (FAILED(aCursor->get_Tablet(&curTablet))) {
+    return;
+  }
+  // All events should be suppressed except
+  // from tablets with hard proximity.
+  if (!IsHardProximityTablet(curTablet)) {
+    return;
+  }
+  // Notify current target window.
+  if (HWND targetWindow = InkCollector::sInkCollector->GetTarget()) {
+    ::SendMessage(targetWindow, MOZ_WM_PEN_LEAVES_HOVER_OF_DIGITIZER, 0, 0);
+  }
+}