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fix(ngStyle): skip setting empty value when new style has the property #16709

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merged 7 commits into from
Oct 4, 2018
Merged

fix(ngStyle): skip setting empty value when new style has the property #16709

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81b65bf
fix(ngStyle): skip setting empty value when new style has the property
itchyny Oct 2, 2018
02f0d0b
style(ngStyle): fix indentation
itchyny Oct 2, 2018
5d74f0f
fix(ngStyle): clear the style even when newStyle has the property but…
itchyny Oct 2, 2018
704ce65
test(ngStyle): add a test for falsy values
itchyny Oct 2, 2018
95d2458
perf(ngStyle): use newStyles to reduce the number of element.css
itchyny Oct 4, 2018
cbb0b7d
test(ngStyle): add a test for setting style when the new value is num…
itchyny Oct 4, 2018
c44b2f2
test(ngStyle): add a test for the case the new model is null
itchyny Oct 4, 2018
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6 changes: 5 additions & 1 deletion src/ng/directive/ngStyle.js
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,11 @@
var ngStyleDirective = ngDirective(function(scope, element, attr) {
scope.$watchCollection(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {
if (oldStyles && (newStyles !== oldStyles)) {
forEach(oldStyles, function(val, style) { element.css(style, '');});
forEach(oldStyles, function(val, style) {
if (!(newStyles && newStyles.hasOwnProperty(style))) {
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What if newStyles does have the property, but the value is undefined or null?

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Right, in that case the style should be cleared. Fixed in 5d74f0f.

element.css(style, '');
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Incorrect indentation.

}
});
}
if (newStyles) element.css(newStyles);
});
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