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Listen to focus events on children and add a focused class in the dropdown (#2848)

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Sam El-Husseini
2019-08-16 16:29:34 -07:00
committed by GitHub
parent ca83f97074
commit 8e4d904095
1 changed files with 9 additions and 0 deletions
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9
core/dropdowndiv.js
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@@ -145,6 +145,15 @@ Blockly.DropDownDiv.createDom = function() {
Blockly.DropDownDiv.DIV_.style.transition = 'transform ' +
Blockly.DropDownDiv.ANIMATION_TIME + 's, ' +
'opacity ' + Blockly.DropDownDiv.ANIMATION_TIME + 's';
// Handle focusin/out events to add a visual indicator when
// a child is focused or blurred.
div.addEventListener('focusin', function() {
Blockly.utils.dom.addClass(div, 'focused');
});
div.addEventListener('focusout', function() {
Blockly.utils.dom.removeClass(div, 'focused');
});
};
/**