1 files changed, 134 insertions, 0 deletions
diff --git a/widget/WidgetUtils.cpp b/widget/WidgetUtils.cpp
new file mode 100644
index 0000000000..3bafdd0a4d
--- /dev/null
+++ b/widget/WidgetUtils.cpp
@@ -0,0 +1,134 @@
+/* -*- 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/Components.h"
+#include "mozilla/Unused.h"
+#include "nsContentUtils.h"
+#include "nsIBidiKeyboard.h"
+#include "nsIStringBundle.h"
+#include "nsTArray.h"
+#include "prenv.h"
+
+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.XMost(),
+                       aRect.Height(), aRect.Width());
+    case ROTATION_180:
+      return nsIntRect(aBounds.Width() - aRect.XMost(),
+                       aBounds.Height() - aRect.YMost(), aRect.Width(),
+                       aRect.Height());
+    case ROTATION_270:
+      return nsIntRect(aBounds.Height() - aRect.YMost(), aRect.X(),
+                       aRect.Height(), aRect.Width());
+    default:
+      MOZ_CRASH("Unknown rotation");
+  }
+}
+
+namespace widget {
+
+// 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);
+  }
+}
+
+// static
+void WidgetUtils::GetBrandShortName(nsAString& aBrandName) {
+  aBrandName.Truncate();
+
+  nsCOMPtr<nsIStringBundleService> bundleService =
+      mozilla::components::StringBundle::Service();
+
+  nsCOMPtr<nsIStringBundle> bundle;
+  if (bundleService) {
+    bundleService->CreateBundle("chrome://branding/locale/brand.properties",
+                                getter_AddRefs(bundle));
+  }
+
+  if (bundle) {
+    bundle->GetStringFromName("brandShortName", aBrandName);
+  }
+}
+
+}  // namespace widget
+}  // namespace mozilla