add Dad Jokes sample

community/dad-jokes-widget.lua

@@ -0,0 +1,20 @@
+-- name = "Dad jokes"
+-- description = "icanhazdadjoke.com"
+-- type = "widget"
+-- author = "me"
+-- version = "1.0"
+
+function on_resume()
+    http:get("http://icanhasdadjoke.com/slack")
+end
+
+function on_network_result(result)
+    joke = ajson:get_value(result, "object array:attachments object:0 string:text")
+    ui:show_text(joke)
+end
+
+function on_click()
+    if joke ~= nil then
+        system:copy_to_clipboard(joke)
+    end
+end