chromium/src/third_party/blink/public/mojom/widget/screen_info.mojom

// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module blink.mojom;

import "third_party/blink/public/mojom/widget/screen_orientation.mojom";
import "ui/gfx/geometry/mojom/geometry.mojom";
import "ui/gfx/mojom/display_color_spaces.mojom";

// Information about the screen on which a WidgetBase is being displayed. This
// is the content counterpart to blink::ScreenInfo.
struct ScreenInfo {
  // Device scale factor. Specifies the ratio between physical and logical
  // pixels.
  float device_scale_factor = 1;

  // The color spaces and buffer formats that this screen will use for various
  // content types.
  gfx.mojom.DisplayColorSpaces display_color_spaces;

  // The screen depth in bits per pixel.
  uint32 depth;

  // The bits per colour component. This assumes that the colours are balanced
  // equally.
  uint32 depth_per_component;

  // This can be true for black and white printers
  bool is_monochrome = false;

  // The display frequency in Hz of the monitor. Set to 0 if it fails in the
  // monitor frequency query.
  uint32 display_frequency;

  // The display monitor rectangle in virtual-screen coordinates. Note that
  // this may be negative.
  gfx.mojom.Rect rect;

  // The portion of the monitor's rectangle that can be used by applications.
  gfx.mojom.Rect available_rect;

  // The monitor's orientation.
  ScreenOrientation orientation_type = ScreenOrientation.kUndefined;

  // This is the orientation angle of the displayed content in degrees.
  // It is the opposite of the physical rotation.
  uint16 orientation_angle;

  // Proposed: https://github.com/webscreens/window-placement
  // Whether this Screen is part of a multi-screen extended visual workspace.
  bool is_extended;
};