Add m-esr52 at 52.6.0

1 files changed, 109 insertions, 0 deletions

diff --git a/widget/nsIScreen.idl b/widget/nsIScreen.idl
new file mode 100644
index 0000000000..b1529daf7c
--- /dev/null
+++ b/widget/nsIScreen.idl
@@ -0,0 +1,109 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * 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 "nsISupports.idl"
+
+%{C++
+/**
+ * The display type of nsIScreen belongs to.
+ */
+enum class DisplayType: int32_t {
+  DISPLAY_PRIMARY,  // primary screen
+  DISPLAY_EXTERNAL, // wired displays, such as HDMI, DisplayPort, etc.
+  DISPLAY_VIRTUAL   // wireless displays, such as Chromecast, WiFi-Display, etc.
+};
+%}
+
+[scriptable, uuid(826e80c8-d70f-42e2-8aa9-82c05f2a370a)]
+interface nsIScreen : nsISupports
+{
+  /**
+   * Levels of brightness for the screen, from off to full brightness.
+   */
+  const unsigned long BRIGHTNESS_DIM = 0;
+  const unsigned long BRIGHTNESS_FULL = 1;
+
+  /* The number of different brightness levels */
+  const unsigned long BRIGHTNESS_LEVELS = 2;
+
+  /**
+   * Allowable screen rotations, when the underlying widget toolkit
+   * supports rotating the screen.
+   *
+   * ROTATION_0_DEG is the default, unrotated configuration.
+   */
+  const unsigned long   ROTATION_0_DEG = 0;
+  const unsigned long  ROTATION_90_DEG = 1;
+  const unsigned long ROTATION_180_DEG = 2;
+  const unsigned long ROTATION_270_DEG = 3;
+
+  /**
+   * A unique identifier for this device, useful for requerying
+   * for it via nsIScreenManager.
+   */
+  readonly attribute unsigned long id;
+
+  /**
+   * These report screen dimensions in (screen-specific) device pixels
+   */
+  void GetRect(out long left, out long top, out long width, out long height);
+  void GetAvailRect(out long left, out long top, out long width, out long height);
+
+  /**
+   * And these report in desktop pixels
+   */
+  void GetRectDisplayPix(out long left, out long top, out long width, out long height);
+  void GetAvailRectDisplayPix(out long left, out long top, out long width, out long height);
+
+  /**
+   * Locks the minimum brightness of the screen, forcing it to be at
+   * least as bright as a certain brightness level. Each call to this
+   * function must eventually be followed by a corresponding call to
+   * unlockMinimumBrightness, with the same brightness level.
+   *
+   * @param brightness A brightness level, one of the above constants.
+   */
+  void lockMinimumBrightness(in unsigned long brightness);
+
+  /**
+   * Releases a lock on the screen brightness. This must be called
+   * (eventually) after a corresponding call to lockMinimumBrightness.
+   *
+   * @param brightness A brightness level, one of the above constants.
+   */
+  void unlockMinimumBrightness(in unsigned long brightness);
+  
+  readonly attribute long pixelDepth;
+  readonly attribute long colorDepth;
+  /**
+   * Get/set the screen rotation, on platforms that support changing
+   * screen rotation.
+   */
+  attribute unsigned long rotation;
+
+  /**
+   * The number of device pixels per desktop pixel for this screen (for
+   * hidpi configurations where there may be multiple device pixels per
+   * desktop px and/or per CSS px).
+   *
+   * This seems poorly named (something like devicePixelsPerDesktopPixel
+   * would be more accurate/explicit), but given that it is exposed to
+   * front-end code and may also be used by add-ons, it's probably not
+   * worth the disruption of changing it.
+   *
+   * Returns 1.0 if HiDPI mode is disabled or unsupported, or if the
+   * host OS uses device pixels as its desktop pixel units (as in Win8.1
+   * per-monitor dpi support).
+   */
+  readonly attribute double contentsScaleFactor;
+
+  /**
+   * The default number of device pixels per unscaled CSS pixel for this
+   * screen. This is probably what contentsScaleFactor originally meant
+   * to be, prior to confusion between CSS pixels and desktop pixel units.
+   */
+  readonly attribute double defaultCSSScaleFactor;
+};