nsISelection3

content/base/public/nsISelection3.idlScriptable

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1.0

Introduced

Gecko 2.0

Obsolete

Gecko 8.0

Inherits from: nsISupports Last changed in Gecko 2.0 (Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1)

In Gecko 8.0 this Interface was merged into the nsISelection interface.

Method overview

void modify(in DOMString alter, in DOMString direction, in DOMString granularity);

Modifies the selection. Note that the parameters are case-insensitive.

void modify(
  in DOMString alter,
  in DOMString direction,
  in DOMString granularity
);

alter

Can be one of { "move", "extend" }

"move" collapses the selection to the end of the selection and applies the movement direction/granularity to the collapsed selection.
"extend" leaves the start of the selection unchanged, and applies movement direction/granularity to the end of the selection.

direction

Can be one of { "forward", "backward", "left", "right" }

granularity

Can be one of { "character", "word", "line", "lineboundary" }