The current release of OpenLaszlo doesn’t like empty handler tags. If you compile the following code, you’ll get a compiler warning:<\/p>\n
\r\n<canvas debug="true">\r\n <handler name="oninit">\r\n\r\n <\/handler>\r\n<\/canvas>\r\n<\/pre>\nThe warning will say:<\/p>\n
“Refusing to compile an empty handler, you should declare the event instead”<\/p><\/blockquote>\n
This wasn’t the case previously. The warning is intended to educate developers who continue to define empty handlers to “hack” a custom event. (This is an old practice that is no longer necessary, since there is now an <event \/> tag). If you’re intentionally writing empty handler tags (e.g. as stubs), those warnings may get in the way.<\/p>\n
To work around them, provide a comment in your empty handler:<\/p>\n
\r\n<canvas debug="true">\r\n <handler name="oninit">\r\n \/\/ Setup code for application.\r\n <\/handler>\r\n<\/canvas>\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"The current release of OpenLaszlo doesn’t like empty handler tags. If you compile the following code, you’ll get a compiler warning: The warning will say: “Refusing to compile an empty handler, you should declare the event instead” This wasn’t the case previously. The warning is intended to educate developers who continue to define empty handlers … Continue reading Empty Handlers in OpenLaszlo 4.1<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/posts\/132"}],"collection":[{"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/comments?post=132"}],"version-history":[{"count":2,"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/posts\/132\/revisions"}],"predecessor-version":[{"id":134,"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/posts\/132\/revisions\/134"}],"wp:attachment":[{"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/media?parent=132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/categories?post=132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.antunkarlovac.com\/blog\/wp-json\/wp\/v2\/tags?post=132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}