gaction: gaction implementation

In jverzani/gWidgetsWWW2: Toolkit implementation of the gWidgets API for use with web pages

Description

actions are reusable encapsulations of actions. The svalue<- method can be used to update the text associated with an action. Use enabled<- to adjust sensitivity to mouse events. The visible<- method can adjust if objects proxying the action are visible. The set_icon reference class method can be used to set the icon (no S3 method)

Usage

gaction(label, tooltip = label, icon = NULL, key.accel = NULL, handler,
  parent, ...)

Arguments

label	Text for action
tooltip	tooltip. Ignored for this toolkit
icon	action icon class
key.accel	keyboard accelerator. Single key, e.g. "X", "LEFT" (arrow), "PAGE_UP", "Ctrl-n", "Alt-X". Use "Shift" to force that. List of key events is given here: http://docs.sencha.com/ext-js/4-1/#!/api/Ext.EventObject.
handler	function called when action is invoked
parent	toplevel window of action (where it can be called). Required here
...	ignored

Details

See the method add_keybinding to add a simple keybinding to initiate this action.

Value

a GWidget object

Examples

w <- gwindow()
a <- gaction("some action", handler=function(h,...) galert("asdf", parent=w), parent=w)
b <- gbutton(action=a, cont=w)
enabled(a) <- FALSE
svalue(a) <- "new text"
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jverzani/gWidgetsWWW2 documentation built on Feb. 9, 2020, 5:18 p.m.