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/* -*- Mode: C++; tab-width: 8; 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/. */
#define MOZ_FATAL_ASSERTIONS_FOR_THREAD_SAFETY
#include "nsBaseScreen.h"
NS_IMPL_ISUPPORTS(nsBaseScreen, nsIScreen)
nsBaseScreen::nsBaseScreen()
{
for (uint32_t i = 0; i < nsIScreen::BRIGHTNESS_LEVELS; i++)
mBrightnessLocks[i] = 0;
}
nsBaseScreen::~nsBaseScreen() { }
NS_IMETHODIMP
nsBaseScreen::GetRectDisplayPix(int32_t *outLeft, int32_t *outTop,
int32_t *outWidth, int32_t *outHeight)
{
return GetRect(outLeft, outTop, outWidth, outHeight);
}
NS_IMETHODIMP
nsBaseScreen::GetAvailRectDisplayPix(int32_t *outLeft, int32_t *outTop,
int32_t *outWidth, int32_t *outHeight)
{
return GetAvailRect(outLeft, outTop, outWidth, outHeight);
}
NS_IMETHODIMP
nsBaseScreen::LockMinimumBrightness(uint32_t aBrightness)
{
MOZ_ASSERT(aBrightness < nsIScreen::BRIGHTNESS_LEVELS,
"Invalid brightness level to lock");
mBrightnessLocks[aBrightness]++;
MOZ_ASSERT(mBrightnessLocks[aBrightness] > 0,
"Overflow after locking brightness level");
CheckMinimumBrightness();
return NS_OK;
}
NS_IMETHODIMP
nsBaseScreen::UnlockMinimumBrightness(uint32_t aBrightness)
{
MOZ_ASSERT(aBrightness < nsIScreen::BRIGHTNESS_LEVELS,
"Invalid brightness level to lock");
MOZ_ASSERT(mBrightnessLocks[aBrightness] > 0,
"Unlocking a brightness level with no corresponding lock");
mBrightnessLocks[aBrightness]--;
CheckMinimumBrightness();
return NS_OK;
}
void
nsBaseScreen::CheckMinimumBrightness()
{
uint32_t brightness = nsIScreen::BRIGHTNESS_LEVELS;
for (int32_t i = nsIScreen::BRIGHTNESS_LEVELS - 1; i >=0; i--) {
if (mBrightnessLocks[i] > 0) {
brightness = i;
break;
}
}
ApplyMinimumBrightness(brightness);
}
NS_IMETHODIMP
nsBaseScreen::GetContentsScaleFactor(double* aContentsScaleFactor)
{
*aContentsScaleFactor = 1.0;
return NS_OK;
}
NS_IMETHODIMP
nsBaseScreen::GetDefaultCSSScaleFactor(double* aScaleFactor)
{
*aScaleFactor = 1.0;
return NS_OK;
}
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