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Added GetScrollbarVisibility()

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This commit is contained in:
troy%netscape.com 1999-02-03 04:25:31 +00:00
parent 7aa583c57b
commit 391a2f6747
3 changed files with 17 additions and 0 deletions
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7
view/public/nsIScrollableView.h
View File

@ -139,6 +139,13 @@ public:
*/
NS_IMETHOD GetControlInsets(nsMargin &aInsets) const = 0;
/**
* Get information about whether the vertical and horizontal scrollbars
* are currently visible
*/
NS_IMETHOD GetScrollbarVisibility(PRBool *aVerticalVisible,
PRBool *aHorizontalVisible) const = 0;
private:
NS_IMETHOD_(nsrefcnt) AddRef(void) = 0;
NS_IMETHOD_(nsrefcnt) Release(void) = 0;

8
view/src/nsScrollingView.cpp
View File

@ -1295,6 +1295,14 @@ NS_IMETHODIMP nsScrollingView :: GetControlInsets(nsMargin &aInsets) const
return NS_OK;
}
NS_IMETHODIMP nsScrollingView :: GetScrollbarVisibility(PRBool *aVerticalVisible,
PRBool *aHorizontalVisible) const
{
*aVerticalVisible = mVScrollBarView && ViewIsShowing(mVScrollBarView);
*aHorizontalVisible = mHScrollBarView && ViewIsShowing(mHScrollBarView);
return NS_OK;
}
void nsScrollingView :: AdjustChildWidgets(nsScrollingView *aScrolling, nsIView *aView, nscoord aDx, nscoord aDy, float scale)
{
PRInt32 numkids;

2
view/src/nsScrollingView.h
View File

@ -60,6 +60,8 @@ public:
NS_IMETHOD ScrollTo(nscoord aX, nscoord aY, PRUint32 aUpdateFlags);
NS_IMETHOD SetControlInsets(const nsMargin &aInsets);
NS_IMETHOD GetControlInsets(nsMargin &aInsets) const;
NS_IMETHOD GetScrollbarVisibility(PRBool *aVerticalVisible,
PRBool *aHorizontalVisible) const;
//private
virtual void HandleScrollEvent(nsGUIEvent *aEvent, PRUint32 aEventFlags);