mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-01 00:32:11 +00:00
82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=8 et :
|
|
*/
|
|
/* 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/. */
|
|
|
|
#ifndef nsBaseScreen_h
|
|
#define nsBaseScreen_h
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsIScreen.h"
|
|
|
|
class nsBaseScreen : public nsIScreen
|
|
{
|
|
public:
|
|
nsBaseScreen();
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
// nsIScreen interface
|
|
|
|
// These simply forward to the device-pixel versions;
|
|
// implementations where desktop pixels may not correspond
|
|
// to per-screen device pixels must override.
|
|
NS_IMETHOD GetRectDisplayPix(int32_t *outLeft, int32_t *outTop,
|
|
int32_t *outWidth, int32_t *outHeight) override;
|
|
NS_IMETHOD GetAvailRectDisplayPix(int32_t *outLeft, int32_t *outTop,
|
|
int32_t *outWidth, int32_t *outHeight) override;
|
|
|
|
/**
|
|
* Simple management of screen brightness locks. This abstract base class
|
|
* allows all widget implementations to share brightness locking code.
|
|
*/
|
|
NS_IMETHOD LockMinimumBrightness(uint32_t aBrightness) override;
|
|
NS_IMETHOD UnlockMinimumBrightness(uint32_t aBrightness) override;
|
|
|
|
NS_IMETHOD GetRotation(uint32_t* aRotation) override {
|
|
*aRotation = nsIScreen::ROTATION_0_DEG;
|
|
return NS_OK;
|
|
}
|
|
NS_IMETHOD SetRotation(uint32_t aRotation) override { return NS_ERROR_NOT_AVAILABLE; }
|
|
|
|
NS_IMETHOD GetContentsScaleFactor(double* aContentsScaleFactor) override;
|
|
|
|
NS_IMETHOD GetDefaultCSSScaleFactor(double* aScaleFactor) override;
|
|
|
|
protected:
|
|
virtual ~nsBaseScreen();
|
|
|
|
/**
|
|
* Manually set the current level of brightness locking. This is called after
|
|
* we determine, based on the current active locks, what the strongest
|
|
* lock is. You should normally not call this function - it will be
|
|
* called automatically by this class.
|
|
*
|
|
* Each widget implementation should implement this in a way that
|
|
* makes sense there. This is normally the only function that
|
|
* contains widget-specific code.
|
|
*
|
|
* The default implementation does nothing.
|
|
*
|
|
* @param aBrightness The current brightness level to set. If this is
|
|
* nsIScreen::BRIGHTNESS_LEVELS
|
|
* (an impossible value for a brightness level to be),
|
|
* then that signifies that there is no current
|
|
* minimum brightness level, and the screen can shut off.
|
|
*/
|
|
virtual void ApplyMinimumBrightness(uint32_t aBrightness) { }
|
|
|
|
private:
|
|
/**
|
|
* Checks what the minimum brightness value is, and calls
|
|
* ApplyMinimumBrightness.
|
|
*/
|
|
void CheckMinimumBrightness();
|
|
|
|
uint32_t mBrightnessLocks[nsIScreen::BRIGHTNESS_LEVELS];
|
|
};
|
|
|
|
#endif // nsBaseScreen_h
|