nsresult
TaskbarTabPreview::UpdateNext() {
NS_ASSERTION(CanMakeTaskbarCalls() && mVisible, "UpdateNext called on invisible tab preview");
HWND hNext = nullptr;
if (mNext) {
bool visible;
nsresult rv = mNext->GetVisible(&visible);
NS_ENSURE_SUCCESS(rv, rv);
// Can only move next to enabled previews
if (!visible)
return NS_ERROR_FAILURE;
hNext = (HWND)mNext->GetHWND();
// hNext must be registered with the taskbar if the call is to succeed
mNext->EnsureRegistration();
}
if (FAILED(mTaskbar->SetTabOrder(mProxyWindow, hNext)))
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
TaskbarWindowPreview::SetProgressState(nsTaskbarProgressState aState,
PRUint64 aCurrentValue,
PRUint64 aMaxValue)
{
NS_ENSURE_ARG_RANGE(aState, 0, NS_ARRAY_LENGTH(sNativeStates) - 1);
TBPFLAG nativeState = sNativeStates[aState];
if (nativeState == TBPF_NOPROGRESS || nativeState == TBPF_INDETERMINATE) {
NS_ENSURE_TRUE(aCurrentValue == 0, NS_ERROR_INVALID_ARG);
NS_ENSURE_TRUE(aMaxValue == 0, NS_ERROR_INVALID_ARG);
}
if (aCurrentValue > aMaxValue)
return NS_ERROR_ILLEGAL_VALUE;
mState = nativeState;
mCurrentValue = aCurrentValue;
mMaxValue = aMaxValue;
// Only update if we can
return CanMakeTaskbarCalls() ? UpdateTaskbarProgress() : NS_OK;
}
NS_IMETHODIMP
TaskbarPreview::SetTooltip(const nsAString &aTooltip) {
mTooltip = aTooltip;
return CanMakeTaskbarCalls() ? UpdateTooltip() : NS_OK;
}