Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 157 insertions, 0 deletions

diff --git a/widget/windows/ScreenHelperWin.cpp b/widget/windows/ScreenHelperWin.cpp
new file mode 100644
index 0000000000..b3a48bae23
--- /dev/null
+++ b/widget/windows/ScreenHelperWin.cpp
@@ -0,0 +1,157 @@
+/* -*- 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 "ScreenHelperWin.h"
+
+#include "mozilla/Logging.h"
+#include "nsTArray.h"
+#include "WinUtils.h"
+
+static mozilla::LazyLogModule sScreenLog("WidgetScreen");
+
+namespace mozilla {
+namespace widget {
+
+static void GetDisplayInfo(const char16ptr_t aName,
+                           hal::ScreenOrientation& aOrientation,
+                           uint16_t& aAngle, bool& aIsPseudoDisplay,
+                           uint32_t& aRefreshRate) {
+  DISPLAY_DEVICEW displayDevice = {.cb = sizeof(DISPLAY_DEVICEW)};
+
+  // XXX Is the pseudodisplay status really useful?
+  aIsPseudoDisplay =
+      EnumDisplayDevicesW(aName, 0, &displayDevice, 0) &&
+      (displayDevice.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER);
+
+  DEVMODEW mode = {.dmSize = sizeof(DEVMODEW)};
+  if (!EnumDisplaySettingsW(aName, ENUM_CURRENT_SETTINGS, &mode)) {
+    return;
+  }
+  MOZ_ASSERT(mode.dmFields & DM_DISPLAYORIENTATION);
+
+  aRefreshRate = mode.dmDisplayFrequency;
+
+  // conver to default/natural size
+  if (mode.dmDisplayOrientation == DMDO_90 ||
+      mode.dmDisplayOrientation == DMDO_270) {
+    DWORD temp = mode.dmPelsHeight;
+    mode.dmPelsHeight = mode.dmPelsWidth;
+    mode.dmPelsWidth = temp;
+  }
+
+  bool defaultIsLandscape = mode.dmPelsWidth >= mode.dmPelsHeight;
+  switch (mode.dmDisplayOrientation) {
+    case DMDO_DEFAULT:
+      aOrientation = defaultIsLandscape
+                         ? hal::ScreenOrientation::LandscapePrimary
+                         : hal::ScreenOrientation::PortraitPrimary;
+      aAngle = 0;
+      break;
+    case DMDO_90:
+      aOrientation = defaultIsLandscape
+                         ? hal::ScreenOrientation::PortraitPrimary
+                         : hal::ScreenOrientation::LandscapeSecondary;
+      aAngle = 270;
+      break;
+    case DMDO_180:
+      aOrientation = defaultIsLandscape
+                         ? hal::ScreenOrientation::LandscapeSecondary
+                         : hal::ScreenOrientation::PortraitSecondary;
+      aAngle = 180;
+      break;
+    case DMDO_270:
+      aOrientation = defaultIsLandscape
+                         ? hal::ScreenOrientation::PortraitSecondary
+                         : hal::ScreenOrientation::LandscapePrimary;
+      aAngle = 90;
+      break;
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unexpected angle");
+      break;
+  }
+}
+
+BOOL CALLBACK CollectMonitors(HMONITOR aMon, HDC, LPRECT, LPARAM ioParam) {
+  auto screens = reinterpret_cast<nsTArray<RefPtr<Screen>>*>(ioParam);
+  BOOL success = FALSE;
+  MONITORINFOEX info;
+  info.cbSize = sizeof(MONITORINFOEX);
+  success = ::GetMonitorInfoW(aMon, &info);
+  if (!success) {
+    MOZ_LOG(sScreenLog, LogLevel::Error, ("GetMonitorInfoW failed"));
+    return TRUE;  // continue the enumeration
+  }
+
+  double scale = WinUtils::LogToPhysFactor(aMon);
+  DesktopToLayoutDeviceScale contentsScaleFactor;
+  if (WinUtils::IsPerMonitorDPIAware()) {
+    contentsScaleFactor.scale = 1.0;
+  } else {
+    contentsScaleFactor.scale = scale;
+  }
+  CSSToLayoutDeviceScale defaultCssScaleFactor(scale);
+  LayoutDeviceIntRect rect(info.rcMonitor.left, info.rcMonitor.top,
+                           info.rcMonitor.right - info.rcMonitor.left,
+                           info.rcMonitor.bottom - info.rcMonitor.top);
+  LayoutDeviceIntRect availRect(info.rcWork.left, info.rcWork.top,
+                                info.rcWork.right - info.rcWork.left,
+                                info.rcWork.bottom - info.rcWork.top);
+
+  HDC hDC = CreateDC(nullptr, info.szDevice, nullptr, nullptr);
+  if (!hDC) {
+    MOZ_LOG(sScreenLog, LogLevel::Error, ("CollectMonitors CreateDC failed"));
+    return TRUE;
+  }
+  uint32_t pixelDepth = ::GetDeviceCaps(hDC, BITSPIXEL);
+  DeleteDC(hDC);
+  if (pixelDepth == 32) {
+    // If a device uses 32 bits per pixel, it's still only using 8 bits
+    // per color component, which is what our callers want to know.
+    // (Some devices report 32 and some devices report 24.)
+    pixelDepth = 24;
+  }
+
+  float dpi = WinUtils::MonitorDPI(aMon);
+
+  auto orientation = hal::ScreenOrientation::None;
+  uint16_t angle = 0;
+  bool isPseudoDisplay = false;
+  uint32_t refreshRate = 0;
+  GetDisplayInfo(info.szDevice, orientation, angle, isPseudoDisplay,
+                 refreshRate);
+
+  MOZ_LOG(sScreenLog, LogLevel::Debug,
+          ("New screen [%s (%s) %d %u %f %f %f %d %d %d]",
+           ToString(rect).c_str(), ToString(availRect).c_str(), pixelDepth,
+           refreshRate, contentsScaleFactor.scale, defaultCssScaleFactor.scale,
+           dpi, isPseudoDisplay, orientation, angle));
+  auto screen = MakeRefPtr<Screen>(
+      rect, availRect, pixelDepth, pixelDepth, refreshRate, contentsScaleFactor,
+      defaultCssScaleFactor, dpi, Screen::IsPseudoDisplay(isPseudoDisplay),
+      orientation, angle);
+  if (info.dwFlags & MONITORINFOF_PRIMARY) {
+    // The primary monitor must be the first element of the screen list.
+    screens->InsertElementAt(0, std::move(screen));
+  } else {
+    screens->AppendElement(std::move(screen));
+  }
+  return TRUE;
+}
+
+void ScreenHelperWin::RefreshScreens() {
+  MOZ_LOG(sScreenLog, LogLevel::Debug, ("Refreshing screens"));
+
+  AutoTArray<RefPtr<Screen>, 4> screens;
+  BOOL result = ::EnumDisplayMonitors(
+      nullptr, nullptr, (MONITORENUMPROC)CollectMonitors, (LPARAM)&screens);
+  if (!result) {
+    NS_WARNING("Unable to EnumDisplayMonitors");
+  }
+  ScreenManager::Refresh(std::move(screens));
+}
+
+}  // namespace widget
+}  // namespace mozilla