Hi Sarah,
After trying a few different methods, the best way I've been able to implement what you're describing without an onDrawBegin event is to use a dojo/on.pausable() event that goes off on the map.onmousedown event, pause it, and only unpause it when the draw-end event occurs. Here's how it would look:
require([..., "esri/map", "dojo/on", "esri/toolbars/draw", ...], function (..., Map, dojoOn, DrawToolbar, ...) {
...
var map = new Map("mapdiv", {...});
var drawtoolbar = new DrawToolbar(map, {...});
...
var clearGraphicsHandler = dojoOn.pausable(map, "mousedown", function () {
// clear the map graphics layer
map.graphics.clear();
// test if you can pause the clearGraphicsHandler after the event is called.
if (clearGraphicsHandler & typeof clearGraphicsHandler.pause === "function") {
clearGraphicsHandler.pause();
}
});
// pause it for now
clearGraphicsHandler.pause();
...
dojoOn(drawtoolbar, "draw-end", function (evt) {
// do something to add the drawing on the map.
...
// resume the clearGraphicsHandler when you touch the map to draw again.
clearGraphicsHandler.resume();
});
...
// remember if you switch away from this tool, and want to preserve the current graphic, be sure to call clearGraphicsHandler.pause();
...
});
There's more things you could do to make this more robust. Hopefully, this helps.
