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    nsIScrollable

    This interface can be implemented by a control that supports scrolling. This is a generic interface without concern for the type of content that may be inside.
    Inherits from: nsIScrollable Last changed in Gecko 29.0 (Firefox 29.0 / Thunderbird 29.0 / SeaMonkey 2.26)

    Method overview

    long getCurScrollPos(in long scrollOrientation); Obsolete since Gecko 29.0
    long getDefaultScrollbarPreferences(in long scrollOrientation);
    void getScrollbarVisibility(out boolean verticalVisible, out boolean horizontalVisible);
    void getScrollRange(in long scrollOrientation, out long minPos, out long maxPos); Obsolete since Gecko 29.0
    void setCurScrollPos(in long scrollOrientation, in long curPos); Obsolete since Gecko 29.0
    void setCurScrollPosEx(in long curHorizontalPos, in long curVerticalPos); Obsolete since Gecko 29.0
    void setDefaultScrollbarPreferences(in long scrollOrientation, in long scrollbarPref);
    void setScrollRange(in long scrollOrientation, in long minPos, in long maxPos); Obsolete since Gecko 29.0
    void setScrollRangeEx(in long minHorizontalPos, in long maxHorizontalPos, in long minVerticalPos, in long maxVerticalPos); Obsolete since Gecko 29.0

    Constants

    Scroll orientations

    Scroll orientations a scrollbar can be in.

    Constant Value Description
    ScrollOrientation_X 1 Horizontal scrolling. When passing this in to a method you are requesting or setting data for the horizontal scrollbar.
    ScrollOrientation_Y 2 Vertical scrolling. When passing this in to a method you are requesting or setting data for the vertical scrollbar.

    Scrollbar states

    Visibility states of a scrollbar.

    Constant Value Description
    Scrollbar_Auto 1 Scrollbars visible only when needed.
    Scrollbar_Never 2 Scrollbars never visible, even when scrolling is still possible.
    Scrollbar_Always 3 Scrollbars always visible, even when scrolling is not possible.

    Methods

    Obsolete since Gecko 29.0 (Firefox 29.0 / Thunderbird 29.0 / SeaMonkey 2.26)

    getCurScrollPos()

    long getCurScrollPos(
  in long scrollOrientation
);
    Parameters
    scrollOrientation
    An integer representing the orientation of the scrollbar.
    Return value

     

    getDefaultScrollbarPreferences()

    long getDefaultScrollbarPreferences(
  in long scrollOrientation
);
    Parameters
    scrollOrientation
    An integer representing the orientation of the scrollbar.
    Return value

    An integer representing the state of the scrollbar.

    getScrollbarVisibility()

    void getScrollbarVisibility(
  out boolean verticalVisible,
  out boolean horizontalVisible
);
    Parameters
    verticalVisible
    Boolean specifying the visibility of the vertical scrollbar.
    horizontalVisible
    Boolean specifying the visibility of the horizontal scrollbar.

    Obsolete since Gecko 29.0 (Firefox 29.0 / Thunderbird 29.0 / SeaMonkey 2.26)

    getScrollRange()

    void getScrollRange(
  in long scrollOrientation,
  out long minPos,
  out long maxPos
);
    Parameters
    scrollOrientation
    An integer representing the orientation of the scrollbar.
    minPos
    Minimal position of the scroll range.
    maxPos
    Maximal position of the scroll range.

    Obsolete since Gecko 29.0 (Firefox 29.0 / Thunderbird 29.0 / SeaMonkey 2.26)

    setCurScrollPos()

    void setCurScrollPos(
  in long scrollOrientation,
  in long curPos
);
    Parameters
    scrollOrientation
    An integer representing the orientation of the scrollbar.
    curPos
    An integer representing the position of the cursor.

    Obsolete since Gecko 29.0 (Firefox 29.0 / Thunderbird 29.0 / SeaMonkey 2.26)

    setCurScrollPosEx()

    void setCurScrollPosEx(
  in long curHorizontalPos,
  in long curVerticalPos
);
    Parameters
    curHorizontalPos
    An integer representing the horizontal position of the cursor.
    curVerticalPos
    An integer representing the vertical position of the cursor.

    setDefaultScrollbarPreferences()

    void setDefaultScrollbarPreferences(
  in long scrollOrientation,
  in long scrollbarPref
);
    Parameters
    scrollOrientation
    An integer representing the orientation of the scrollbar.
    scrollbarPref
    An integer representing the state of the scrollbar.

    Obsolete since Gecko 29.0 (Firefox 29.0 / Thunderbird 29.0 / SeaMonkey 2.26)

    setScrollRange()

    void setScrollRange(
  in long scrollOrientation,
  in long minPos,
  in long maxPos
);
    Parameters
    scrollOrientation
    An integer representing the orientation of the scrollbar.
    minPos
    An integer representing the minimal position of the scroll range.
    maxPos
    An integer representing the maximal position of the scroll range.

    Obsolete since Gecko 29.0 (Firefox 29.0 / Thunderbird 29.0 / SeaMonkey 2.26)

    setScrollRangeEx()

    void setScrollRangeEx(
  in long minHorizontalPos,
  in long maxHorizontalPos,
  in long minVerticalPos,
  in long maxVerticalPos
);
    Parameters
    minHorizontalPos
    An integer representing the minimal position of the horizontal scroll range.
    maxHorizontalPos
    An integer representing the maximal position of the horizontal scroll range.
    minVerticalPos
    An integer representing the minimal position of the vertical scroll range.
    maxVerticalPos
    An integer representing the maximal position of the vertical scroll range.

    Example

    var nsiScr = gBrowser.selectedBrowser.docShell.QueryInterface(Components.interfaces.nsIScrollable);
var v={};
var h={};

nsiScr.getScrollbarVisibility(v,h);

v.value //returns true if the vertical scrollbar is displayed
h.value //returns true if the horizontal scrollbar is displayed

    Document Tags and Contributors

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     Contributors to this page: Sheppy, Sebastianz, justinpotts, Yansky0
     Last updated by: Sheppy,