CODEWITHSUNDEEP
javascripthtmllatexmathquill
Roy
Roy

Reputation: 137

mathquill latex- how can I move cursor (selection) by code?

I am using mathquill lib (mathquill git) and I am trying to make a keypad and a backspace using html buttons but I can't figure out how to move the cursor throw the formula.

Thanks,

Upvotes: 3

Views: 1121

Answers (1)

Kunal Manchekar
Kunal Manchekar

Reputation: 76

You can trigger custom keydown event on textarea within mathquill to move cursor through formula.

var customKeyDownEvent = $.Event('keydown');

customKeyDownEvent.bubbles = true;
customKeyDownEvent.cancelable =true;
customKeyDownEvent.charCode = 37;  // 37 for left arrow key
customKeyDownEvent.keyCode = 37;   
customKeyDownEvent.which = 37;

$('.mathquill-editable textarea').trigger(customKeyDownEvent);

Use charCode / keyCode / which are:

  1. 37 for left arrow key
  2. 39 for right arrow key

Thanks.

Upvotes: 6

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