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comparison: widget/nsIScreen.idl
widget/nsIScreen.idl
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| 1 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "nsISupports.idl" | |
| 8 | |
| 9 [scriptable, uuid(D6F13AF4-8ACA-4A10-8687-3F99C3692AC0)] | |
| 10 interface nsIScreen : nsISupports | |
| 11 { | |
| 12 /** | |
| 13 * Levels of brightness for the screen, from off to full brightness. | |
| 14 */ | |
| 15 const unsigned long BRIGHTNESS_DIM = 0; | |
| 16 const unsigned long BRIGHTNESS_FULL = 1; | |
| 17 | |
| 18 /* The number of different brightness levels */ | |
| 19 const unsigned long BRIGHTNESS_LEVELS = 2; | |
| 20 | |
| 21 /** | |
| 22 * Allowable screen rotations, when the underlying widget toolkit | |
| 23 * supports rotating the screen. | |
| 24 * | |
| 25 * ROTATION_0_DEG is the default, unrotated configuration. | |
| 26 */ | |
| 27 const unsigned long ROTATION_0_DEG = 0; | |
| 28 const unsigned long ROTATION_90_DEG = 1; | |
| 29 const unsigned long ROTATION_180_DEG = 2; | |
| 30 const unsigned long ROTATION_270_DEG = 3; | |
| 31 | |
| 32 /** | |
| 33 * These report screen dimensions in (screen-specific) device pixels | |
| 34 */ | |
| 35 void GetRect(out long left, out long top, out long width, out long height); | |
| 36 void GetAvailRect(out long left, out long top, out long width, out long height); | |
| 37 | |
| 38 /** | |
| 39 * And these report in global display pixels | |
| 40 */ | |
| 41 void GetRectDisplayPix(out long left, out long top, out long width, out long height); | |
| 42 void GetAvailRectDisplayPix(out long left, out long top, out long width, out long height); | |
| 43 | |
| 44 /** | |
| 45 * Locks the minimum brightness of the screen, forcing it to be at | |
| 46 * least as bright as a certain brightness level. Each call to this | |
| 47 * function must eventually be followed by a corresponding call to | |
| 48 * unlockMinimumBrightness, with the same brightness level. | |
| 49 * | |
| 50 * @param brightness A brightness level, one of the above constants. | |
| 51 */ | |
| 52 void lockMinimumBrightness(in unsigned long brightness); | |
| 53 | |
| 54 /** | |
| 55 * Releases a lock on the screen brightness. This must be called | |
| 56 * (eventually) after a corresponding call to lockMinimumBrightness. | |
| 57 * | |
| 58 * @param brightness A brightness level, one of the above constants. | |
| 59 */ | |
| 60 void unlockMinimumBrightness(in unsigned long brightness); | |
| 61 | |
| 62 readonly attribute long pixelDepth; | |
| 63 readonly attribute long colorDepth; | |
| 64 /** | |
| 65 * Get/set the screen rotation, on platforms that support changing | |
| 66 * screen rotation. | |
| 67 */ | |
| 68 attribute unsigned long rotation; | |
| 69 | |
| 70 /** | |
| 71 * The number of device pixels per screen point in HiDPI mode. | |
| 72 * Returns 1.0 if HiDPI mode is disabled or unsupported. | |
| 73 */ | |
| 74 readonly attribute double contentsScaleFactor; | |
| 75 }; |
