From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- widget/nsIScreenManager.idl | 64 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 widget/nsIScreenManager.idl (limited to 'widget/nsIScreenManager.idl') diff --git a/widget/nsIScreenManager.idl b/widget/nsIScreenManager.idl new file mode 100644 index 000000000..400b5d33b --- /dev/null +++ b/widget/nsIScreenManager.idl @@ -0,0 +1,64 @@ +/* -*- 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" +#include "nsIScreen.idl" + +[scriptable, uuid(e8a96e60-6b61-4a14-bacc-53891604b502)] +interface nsIScreenManager : nsISupports +{ + // + // Returns the screen that contains the rectangle. If the rect overlaps + // multiple screens, it picks the screen with the greatest area of intersection. + // + // The coordinates are in pixels (not twips) and in screen coordinates. + // + nsIScreen screenForRect ( in long left, in long top, in long width, in long height ) ; + + // + // Returns the screen corresponding to the id. If no such screen exists, + // this will throw NS_ERROR_FAILURE. The id is a unique numeric value + // assigned to each screen, and is an attribute available on the nsIScreen + // interface. + nsIScreen screenForId ( in unsigned long id ) ; + + // The screen with the menubar/taskbar. This shouldn't be needed very + // often. + readonly attribute nsIScreen primaryScreen; + + // Holds the number of screens that are available + readonly attribute unsigned long numberOfScreens; + + // The default DPI scaling factor of the screen environment (number of + // screen pixels corresponding to 1 CSS px, at the default zoom level). + // + // This is currently fixed at 1.0 on most platforms, but varies on Windows + // if the "logical DPI" scaling option in the Display control panel is set + // to a value other than 100% (e.g. 125% or 150% are increasingly common + // defaults on laptops with high-dpi screens). See bug 851520. + // + // NOTE that on OS X, this does -not- reflect the "backing scale factor" + // used to support Retina displays, which is a per-display property, + // not a system-wide scaling factor. The default ratio of CSS pixels to + // Cocoa points remains 1:1, even on a Retina screen where one Cocoa point + // corresponds to two device pixels. (This is exposed via other APIs: + // see window.devicePixelRatio). + // + // NOTE also that on Linux, this does -not- currently reflect changes + // to the system-wide (X11 or Gtk2) DPI value, as Firefox does not yet + // honor these settings. See bug 798362 and bug 712898. + readonly attribute float systemDefaultScale; + + // Returns the nsIScreen instance for the given native widget pointer; + // the pointer is specific to the particular widget implementation, + // and is generally of the same type that NS_NATIVE_WINDOW is. + [noscript] nsIScreen screenForNativeWidget ( in voidPtr nativeWidget ); +}; + + +%{ C++ + +%} -- cgit v1.2.3