1 files changed, 141 insertions, 0 deletions
diff --git a/widget/WidgetUtils.cpp b/widget/WidgetUtils.cpp
new file mode 100644
index 000000000..4352f837c
--- /dev/null
+++ b/widget/WidgetUtils.cpp
@@ -0,0 +1,141 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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 "mozilla/WidgetUtils.h"
+#include "mozilla/dom/ContentParent.h"
+#include "mozilla/Unused.h"
+#include "nsContentUtils.h"
+#include "nsIBidiKeyboard.h"
+#include "nsTArray.h"
+#ifdef XP_WIN
+#include "WinUtils.h"
+#endif
+#if MOZ_WIDGET_GTK == 3
+#include "mozilla/WidgetUtilsGtk.h"
+#endif
+
+namespace mozilla {
+
+gfx::Matrix
+ComputeTransformForRotation(const nsIntRect& aBounds,
+                              ScreenRotation aRotation)
+{
+    gfx::Matrix transform;
+    static const gfx::Float floatPi = static_cast<gfx::Float>(M_PI);
+
+    switch (aRotation) {
+    case ROTATION_0:
+        break;
+    case ROTATION_90:
+        transform.PreTranslate(aBounds.width, 0);
+        transform.PreRotate(floatPi / 2);
+        break;
+    case ROTATION_180:
+        transform.PreTranslate(aBounds.width, aBounds.height);
+        transform.PreRotate(floatPi);
+        break;
+    case ROTATION_270:
+        transform.PreTranslate(0, aBounds.height);
+        transform.PreRotate(floatPi * 3 / 2);
+        break;
+    default:
+        MOZ_CRASH("Unknown rotation");
+    }
+    return transform;
+}
+
+gfx::Matrix
+ComputeTransformForUnRotation(const nsIntRect& aBounds,
+                              ScreenRotation aRotation)
+{
+    gfx::Matrix transform;
+    static const gfx::Float floatPi = static_cast<gfx::Float>(M_PI);
+
+    switch (aRotation) {
+    case ROTATION_0:
+        break;
+    case ROTATION_90:
+        transform.PreTranslate(0, aBounds.height);
+        transform.PreRotate(floatPi * 3 / 2);
+        break;
+    case ROTATION_180:
+        transform.PreTranslate(aBounds.width, aBounds.height);
+        transform.PreRotate(floatPi);
+        break;
+    case ROTATION_270:
+        transform.PreTranslate(aBounds.width, 0);
+        transform.PreRotate(floatPi / 2);
+        break;
+    default:
+        MOZ_CRASH("Unknown rotation");
+    }
+    return transform;
+}
+
+nsIntRect RotateRect(nsIntRect aRect,
+                     const nsIntRect& aBounds,
+                     ScreenRotation aRotation)
+{
+  switch (aRotation) {
+    case ROTATION_0:
+      return aRect;
+    case ROTATION_90:
+      return nsIntRect(aRect.y,
+                       aBounds.width - aRect.x - aRect.width,
+                       aRect.height, aRect.width);
+    case ROTATION_180:
+      return nsIntRect(aBounds.width - aRect.x - aRect.width,
+                       aBounds.height - aRect.y - aRect.height,
+                       aRect.width, aRect.height);
+    case ROTATION_270:
+      return nsIntRect(aBounds.height - aRect.y - aRect.height,
+                       aRect.x,
+                       aRect.height, aRect.width);
+    default:
+      MOZ_CRASH("Unknown rotation");
+  }
+}
+
+namespace widget {
+
+uint32_t
+WidgetUtils::IsTouchDeviceSupportPresent()
+{
+#ifdef XP_WIN
+  return WinUtils::IsTouchDeviceSupportPresent();
+#elif MOZ_WIDGET_GTK == 3
+  return WidgetUtilsGTK::IsTouchDeviceSupportPresent();
+#else
+  return 0;
+#endif
+}
+
+// static
+void
+WidgetUtils::SendBidiKeyboardInfoToContent()
+{
+  nsCOMPtr<nsIBidiKeyboard> bidiKeyboard = nsContentUtils::GetBidiKeyboard();
+  if (!bidiKeyboard) {
+    return;
+  }
+
+  bool rtl;
+  if (NS_FAILED(bidiKeyboard->IsLangRTL(&rtl))) {
+    return;
+  }
+  bool bidiKeyboards = false;
+  bidiKeyboard->GetHaveBidiKeyboards(&bidiKeyboards);
+
+  nsTArray<dom::ContentParent*> children;
+  dom::ContentParent::GetAll(children);
+  for (uint32_t i = 0; i < children.Length(); i++) {
+    Unused << children[i]->SendBidiKeyboardNotify(rtl, bidiKeyboards);
+  }
+}
+
+} // namespace widget
+} // namespace mozilla