1 files changed, 101 insertions, 0 deletions
diff --git a/widget/windows/OSKInputPaneManager.cpp b/widget/windows/OSKInputPaneManager.cpp
new file mode 100644
index 0000000000..293a84cd28
--- /dev/null
+++ b/widget/windows/OSKInputPaneManager.cpp
@@ -0,0 +1,101 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sts=2 sw=2 et cin: */
+/* 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/. */
+
+#define NTDDI_VERSION NTDDI_WIN10_RS1
+
+#include "OSKInputPaneManager.h"
+#include "nsDebug.h"
+
+#ifndef __MINGW32__
+#  include <inputpaneinterop.h>
+#  include <windows.ui.viewmanagement.h>
+#  include <wrl.h>
+
+using namespace ABI::Windows::UI::ViewManagement;
+using namespace Microsoft::WRL;
+using namespace Microsoft::WRL::Wrappers;
+#endif
+
+namespace mozilla {
+namespace widget {
+
+#ifndef __MINGW32__
+static ComPtr<IInputPane2> GetInputPane(HWND aHwnd) {
+  ComPtr<IInputPaneInterop> inputPaneInterop;
+  HRESULT hr = RoGetActivationFactory(
+      HStringReference(RuntimeClass_Windows_UI_ViewManagement_InputPane).Get(),
+      IID_PPV_ARGS(&inputPaneInterop));
+  if (NS_WARN_IF(FAILED(hr))) {
+    return nullptr;
+  }
+
+  ComPtr<IInputPane> inputPane;
+  hr = inputPaneInterop->GetForWindow(aHwnd, IID_PPV_ARGS(&inputPane));
+  if (NS_WARN_IF(FAILED(hr))) {
+    return nullptr;
+  }
+
+  ComPtr<IInputPane2> inputPane2;
+  inputPane.As(&inputPane2);
+  return inputPane2;
+}
+
+#  ifdef DEBUG
+static bool IsInputPaneVisible(ComPtr<IInputPane2>& aInputPane2) {
+  ComPtr<IInputPaneControl> inputPaneControl;
+  aInputPane2.As(&inputPaneControl);
+  if (NS_WARN_IF(!inputPaneControl)) {
+    return false;
+  }
+  boolean visible = false;
+  inputPaneControl->get_Visible(&visible);
+  return visible;
+}
+
+static bool IsForegroundApp() {
+  HWND foregroundWnd = ::GetForegroundWindow();
+  if (!foregroundWnd) {
+    return false;
+  }
+  DWORD pid;
+  ::GetWindowThreadProcessId(foregroundWnd, &pid);
+  return pid == ::GetCurrentProcessId();
+}
+#  endif
+#endif
+
+// static
+void OSKInputPaneManager::ShowOnScreenKeyboard(HWND aWnd) {
+#ifndef __MINGW32__
+  ComPtr<IInputPane2> inputPane2 = GetInputPane(aWnd);
+  if (!inputPane2) {
+    return;
+  }
+  boolean result;
+  inputPane2->TryShow(&result);
+  NS_WARNING_ASSERTION(
+      result || !IsForegroundApp() || IsInputPaneVisible(inputPane2),
+      "IInputPane2::TryShow is failure");
+#endif
+}
+
+// static
+void OSKInputPaneManager::DismissOnScreenKeyboard(HWND aWnd) {
+#ifndef __MINGW32__
+  ComPtr<IInputPane2> inputPane2 = GetInputPane(aWnd);
+  if (!inputPane2) {
+    return;
+  }
+  boolean result;
+  inputPane2->TryHide(&result);
+  NS_WARNING_ASSERTION(
+      result || !IsForegroundApp() || !IsInputPaneVisible(inputPane2),
+      "IInputPane2::TryHide is failure");
+#endif
+}
+
+}  // namespace widget
+}  // namespace mozilla