/** Sets the new handler and destroys the old one. */
public void changeHandler(DrawFeatureHandler newHandler) {
handler.deactivate();
handler.destroy();
handler = newHandler;
handler.init(this);
addObjModCode(
new Stringer(
getJSObjRef(),
".handler = new ",
newHandler.jsClassName(),
"(",
getJSObjRef(),
",",
getJSObjRef(),
".callbacks,",
getJSObjRef(),
".handlerOptions);")
.toString());
handler.activate();
}
/**
* @param layer
* @param handler The handler to use to draw the feature.
*/
public DrawFeatureControl(VectorLayer layer, DrawFeatureHandler handler) {
super.create(
new Stringer(
"new OpenLayers.Control.DrawFeature(",
layer.getJSObjRef(),
", ",
handler.jsClassName(),
// XXX FIX http://polymap.org/atlas/ticket/219
// the event: this.events.triggerEvent('featureadded') is not fired for unknown
// reason
// -> do triggerEvent() in timeout which seems to disarm a race cond
",{drawFeature: function(geometry) {",
"var self = this; var args = arguments;",
"setTimeout( function() {",
"OpenLayers.Control.DrawFeature.prototype.drawFeature.apply(self, args);",
"}, 250 );",
"}",
"}",
");")
.toString());
addObjModCode(
new Stringer(
"OpenLayers.Util.extend(",
getJSObjRef(),
", {",
"activate: function() {",
"OpenLayers.Control.DrawFeature.prototype.activate.apply(this, arguments);",
"if (!this.keyboardHandler) {",
"this.keyboardCallbacks = { keydown: this.handleKeyDown };",
"this.keyboardHandler = new OpenLayers.Handler.Keyboard(this, this.keyboardCallbacks, {});",
"}",
"this.keyboardHandler.activate();",
"},",
"deactivate: function() {",
"OpenLayers.Control.DrawFeature.prototype.deactivate.apply(this, arguments);",
"this.keyboardHandler.deactivate();",
"},",
"destroy: function() {",
"OpenLayers.Control.ModifyFeature.prototype.destroy.apply(this, arguments);",
"if (this.keyboardHandler) {",
"this.keyboardHandler.destroy();",
"}",
"},",
"handleKeyDown: function (evt) {",
"var handled = false;",
"switch (evt.keyCode) {",
"case 90:", // z
"if (evt.metaKey || evt.ctrlKey) {",
"this.undo();",
"handled = true;",
"}",
"break;",
"case 89:", // y
"if (evt.metaKey || evt.ctrlKey) {",
"this.redo();",
"handled = true;",
"}",
"break;",
"case 27:", // esc
"this.cancel();",
"handled = true;",
"break;",
"}",
"if (handled) {",
"OpenLayers.Event.stop(evt);",
"}",
"}",
"});")
.toString());
handler.init(this);
this.handler = handler;
}
