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-rw-r--r--widget/WidgetUtils.cpp141
1 files changed, 141 insertions, 0 deletions
diff --git a/widget/WidgetUtils.cpp b/widget/WidgetUtils.cpp
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+++ b/widget/WidgetUtils.cpp
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+/* -*- 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