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883849ee32
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-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
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}
convert MOZ_OVERRIDE override
convert MOZ_FINAL final
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsBaseScreen_h
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#define nsBaseScreen_h
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#include "mozilla/Attributes.h"
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#include "nsIScreen.h"
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class nsBaseScreen : public nsIScreen
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{
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public:
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nsBaseScreen();
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NS_DECL_ISUPPORTS
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// nsIScreen interface
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// These simply forward to the device-pixel versions;
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// implementations where global display pixels may not correspond
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// to per-screen device pixels must override.
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NS_IMETHOD GetRectDisplayPix(int32_t *outLeft, int32_t *outTop,
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int32_t *outWidth, int32_t *outHeight) override;
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NS_IMETHOD GetAvailRectDisplayPix(int32_t *outLeft, int32_t *outTop,
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int32_t *outWidth, int32_t *outHeight) override;
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/**
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* Simple management of screen brightness locks. This abstract base class
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* allows all widget implementations to share brightness locking code.
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*/
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NS_IMETHOD LockMinimumBrightness(uint32_t aBrightness) override;
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NS_IMETHOD UnlockMinimumBrightness(uint32_t aBrightness) override;
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NS_IMETHOD GetRotation(uint32_t* aRotation) override {
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*aRotation = nsIScreen::ROTATION_0_DEG;
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return NS_OK;
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}
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NS_IMETHOD SetRotation(uint32_t aRotation) override { return NS_ERROR_NOT_AVAILABLE; }
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NS_IMETHOD GetContentsScaleFactor(double* aContentsScaleFactor) override;
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protected:
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virtual ~nsBaseScreen();
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/**
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* Manually set the current level of brightness locking. This is called after
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* we determine, based on the current active locks, what the strongest
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* lock is. You should normally not call this function - it will be
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* called automatically by this class.
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*
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* Each widget implementation should implement this in a way that
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* makes sense there. This is normally the only function that
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* contains widget-specific code.
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*
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* The default implementation does nothing.
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*
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* @param aBrightness The current brightness level to set. If this is
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* nsIScreen::BRIGHTNESS_LEVELS
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* (an impossible value for a brightness level to be),
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* then that signifies that there is no current
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* minimum brightness level, and the screen can shut off.
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*/
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virtual void ApplyMinimumBrightness(uint32_t aBrightness) { }
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private:
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/**
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* Checks what the minimum brightness value is, and calls
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* ApplyMinimumBrightness.
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*/
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void CheckMinimumBrightness();
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uint32_t mBrightnessLocks[nsIScreen::BRIGHTNESS_LEVELS];
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};
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#endif // nsBaseScreen_h
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