import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/ipc/ScreenManagerParent.cpp

@@ -0,0 +1,229 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/dom/ContentParent.h"
+#include "mozilla/dom/TabParent.h"
+#include "mozilla/Unused.h"
+#include "nsIWidget.h"
+#include "nsServiceManagerUtils.h"
+#include "ScreenManagerParent.h"
+#include "ContentProcessManager.h"
+
+namespace mozilla {
+namespace dom {
+
+static const char *sScreenManagerContractID = "@mozilla.org/gfx/screenmanager;1";
+
+ScreenManagerParent::ScreenManagerParent(uint32_t* aNumberOfScreens,
+                                         float* aSystemDefaultScale,
+                                         bool* aSuccess)
+{
+  mScreenMgr = do_GetService(sScreenManagerContractID);
+  if (!mScreenMgr) {
+    MOZ_CRASH("Couldn't get nsIScreenManager from ScreenManagerParent.");
+  }
+
+  Unused << RecvRefresh(aNumberOfScreens, aSystemDefaultScale, aSuccess);
+}
+
+bool
+ScreenManagerParent::RecvRefresh(uint32_t* aNumberOfScreens,
+                                 float* aSystemDefaultScale,
+                                 bool* aSuccess)
+{
+  *aSuccess = false;
+
+  nsresult rv = mScreenMgr->GetNumberOfScreens(aNumberOfScreens);
+  if (NS_FAILED(rv)) {
+    return true;
+  }
+
+  rv = mScreenMgr->GetSystemDefaultScale(aSystemDefaultScale);
+  if (NS_FAILED(rv)) {
+    return true;
+  }
+
+  *aSuccess = true;
+  return true;
+}
+
+bool
+ScreenManagerParent::RecvScreenRefresh(const uint32_t& aId,
+                                       ScreenDetails* aRetVal,
+                                       bool* aSuccess)
+{
+  *aSuccess = false;
+
+  nsCOMPtr<nsIScreen> screen;
+  nsresult rv = mScreenMgr->ScreenForId(aId, getter_AddRefs(screen));
+  if (NS_FAILED(rv)) {
+    return true;
+  }
+
+  ScreenDetails details;
+  Unused << ExtractScreenDetails(screen, details);
+
+  *aRetVal = details;
+  *aSuccess = true;
+  return true;
+}
+
+bool
+ScreenManagerParent::RecvGetPrimaryScreen(ScreenDetails* aRetVal,
+                                          bool* aSuccess)
+{
+  *aSuccess = false;
+
+  nsCOMPtr<nsIScreen> screen;
+  nsresult rv = mScreenMgr->GetPrimaryScreen(getter_AddRefs(screen));
+
+  NS_ENSURE_SUCCESS(rv, true);
+
+  ScreenDetails details;
+  if (!ExtractScreenDetails(screen, details)) {
+    return true;
+  }
+
+  *aRetVal = details;
+  *aSuccess = true;
+  return true;
+}
+
+bool
+ScreenManagerParent::RecvScreenForRect(const int32_t& aLeft,
+                                       const int32_t& aTop,
+                                       const int32_t& aWidth,
+                                       const int32_t& aHeight,
+                                       ScreenDetails* aRetVal,
+                                       bool* aSuccess)
+{
+  *aSuccess = false;
+
+  nsCOMPtr<nsIScreen> screen;
+  nsresult rv = mScreenMgr->ScreenForRect(aLeft, aTop, aWidth, aHeight, getter_AddRefs(screen));
+
+  NS_ENSURE_SUCCESS(rv, true);
+
+  ScreenDetails details;
+  if (!ExtractScreenDetails(screen, details)) {
+    return true;
+  }
+
+  *aRetVal = details;
+  *aSuccess = true;
+  return true;
+}
+
+bool
+ScreenManagerParent::RecvScreenForBrowser(const TabId& aTabId,
+                                          ScreenDetails* aRetVal,
+                                          bool* aSuccess)
+{
+  *aSuccess = false;
+#ifdef MOZ_VALGRIND
+  // Zero this so that Valgrind doesn't complain when we send it to another
+  // process.
+  memset(aRetVal, 0, sizeof(ScreenDetails));
+#endif
+
+  // Find the mWidget associated with the tabparent, and then return
+  // the nsIScreen it's on.
+  ContentParent* cp = static_cast<ContentParent*>(this->Manager());
+  ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
+  RefPtr<TabParent> tabParent =
+    cpm->GetTopLevelTabParentByProcessAndTabId(cp->ChildID(), aTabId);
+  if(!tabParent){
+    return false;
+  }
+
+  nsCOMPtr<nsIWidget> widget = tabParent->GetWidget();
+
+  nsCOMPtr<nsIScreen> screen;
+  if (widget && widget->GetNativeData(NS_NATIVE_WINDOW)) {
+    mScreenMgr->ScreenForNativeWidget(widget->GetNativeData(NS_NATIVE_WINDOW),
+                                      getter_AddRefs(screen));
+  } else {
+    nsresult rv = mScreenMgr->GetPrimaryScreen(getter_AddRefs(screen));
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      return true;
+    }
+  }
+
+  NS_ENSURE_TRUE(screen, true);
+
+  ScreenDetails details;
+  if (!ExtractScreenDetails(screen, details)) {
+    return true;
+  }
+
+  *aRetVal = details;
+  *aSuccess = true;
+  return true;
+}
+
+bool
+ScreenManagerParent::ExtractScreenDetails(nsIScreen* aScreen, ScreenDetails &aDetails)
+{
+  if (!aScreen) {
+    return false;
+  }
+
+  uint32_t id;
+  nsresult rv = aScreen->GetId(&id);
+  NS_ENSURE_SUCCESS(rv, false);
+  aDetails.id() = id;
+
+  nsIntRect rect;
+  rv = aScreen->GetRect(&rect.x, &rect.y, &rect.width, &rect.height);
+  NS_ENSURE_SUCCESS(rv, false);
+  aDetails.rect() = rect;
+
+  nsIntRect rectDisplayPix;
+  rv = aScreen->GetRectDisplayPix(&rectDisplayPix.x, &rectDisplayPix.y,
+                                  &rectDisplayPix.width, &rectDisplayPix.height);
+  NS_ENSURE_SUCCESS(rv, false);
+  aDetails.rectDisplayPix() = rectDisplayPix;
+
+  nsIntRect availRect;
+  rv = aScreen->GetAvailRect(&availRect.x, &availRect.y, &availRect.width,
+                             &availRect.height);
+  NS_ENSURE_SUCCESS(rv, false);
+  aDetails.availRect() = availRect;
+
+  nsIntRect availRectDisplayPix;
+  rv = aScreen->GetAvailRectDisplayPix(&availRectDisplayPix.x,
+                                       &availRectDisplayPix.y,
+                                       &availRectDisplayPix.width,
+                                       &availRectDisplayPix.height);
+  NS_ENSURE_SUCCESS(rv, false);
+  aDetails.availRectDisplayPix() = availRectDisplayPix;
+
+  int32_t pixelDepth = 0;
+  rv = aScreen->GetPixelDepth(&pixelDepth);
+  NS_ENSURE_SUCCESS(rv, false);
+  aDetails.pixelDepth() = pixelDepth;
+
+  int32_t colorDepth = 0;
+  rv = aScreen->GetColorDepth(&colorDepth);
+  NS_ENSURE_SUCCESS(rv, false);
+  aDetails.colorDepth() = colorDepth;
+
+  double contentsScaleFactor = 1.0;
+  rv = aScreen->GetContentsScaleFactor(&contentsScaleFactor);
+  NS_ENSURE_SUCCESS(rv, false);
+  aDetails.contentsScaleFactor() = contentsScaleFactor;
+
+  return true;
+}
+
+void
+ScreenManagerParent::ActorDestroy(ActorDestroyReason why)
+{
+}
+
+} // namespace dom
+} // namespace mozilla
+