Blockly text input blur

Question

I have small problem about blockly.

I need to call some event (for example alert('hello world') ) when someone blurs text input.

I used Blockly.addChangeListener, but this function is not called when someone create blur event on text input.

Welcome to SO. Please visit the [help] to see how to ask questions at SO — mplungjan, Jul 27 '15 at 12:34
I do not see a blur event here https://developers.google.com/blockly/custom-blocks/defining-blocks - perhaps you can create one like here: https://code.google.com/p/blockly/source/browse/trunk/core/blockly.js?r=1637#718 — mplungjan, Jul 27 '15 at 12:38
Yes I know that this function don´t exist. But i have to detect if someone end of writing for example cath if someone blur input. I need to create function for autosave, but save only when someone doing but not typeing. — Michal Sládeček, Jul 27 '15 at 12:44
Yes one option is that call save event every x scond, but i don't know if is the beast choise. — Michal Sládeček, Jul 27 '15 at 12:51
It is likely the ONLY choice if you do not make a blur listener — mplungjan, Jul 27 '15 at 12:52

score 1 · Answer 1 · answered Apr 26 '16 at 13:33

You can create an onchange event for your input Block. Something like this:

onchange: function(event) {
  var text = Blockly.Javascript.valueToCode(this, 'textBox', Blockly.C.ORDER_ATOMIC);
  if (text == "") {
    alert("Hello world");
  } else {
    alert(text);
  }
}

where this makes reference to your input Block and textBox makes reference to the name that you have set to yours input box.

Blockly text input blur

1 Answers1