@glimmer/runtime
Version:
Minimal runtime needed to render Glimmer templates
90 lines (83 loc) • 7.14 kB
JavaScript
/*
* @method normalizeProperty
* @param element {HTMLElement}
* @param slotName {String}
* @returns {Object} { name, type }
*/
export function normalizeProperty(element, slotName) {
let type, normalized;
if (slotName in element) {
normalized = slotName;
type = 'prop';
} else {
let lower = slotName.toLowerCase();
if (lower in element) {
type = 'prop';
normalized = lower;
} else {
type = 'attr';
normalized = slotName;
}
}
if (type === 'prop' && (normalized.toLowerCase() === 'style' || preferAttr(element.tagName, normalized))) {
type = 'attr';
}
return {
normalized,
type
};
}
export function normalizePropertyValue(value) {
if (value === '') {
return true;
}
return value;
} // properties that MUST be set as attributes, due to:
// * browser bug
// * strange spec outlier
const ATTR_OVERRIDES = {
INPUT: {
form: true,
// Chrome 46.0.2464.0: 'autocorrect' in document.createElement('input') === false
// Safari 8.0.7: 'autocorrect' in document.createElement('input') === false
// Mobile Safari (iOS 8.4 simulator): 'autocorrect' in document.createElement('input') === true
autocorrect: true,
// Chrome 54.0.2840.98: 'list' in document.createElement('input') === true
// Safari 9.1.3: 'list' in document.createElement('input') === false
list: true
},
// element.form is actually a legitimate readOnly property, that is to be
// mutated, but must be mutated by setAttribute...
SELECT: {
form: true
},
OPTION: {
form: true
},
TEXTAREA: {
form: true
},
LABEL: {
form: true
},
FIELDSET: {
form: true
},
LEGEND: {
form: true
},
OBJECT: {
form: true
},
OUTPUT: {
form: true
},
BUTTON: {
form: true
}
};
function preferAttr(tagName, propName) {
let tag = ATTR_OVERRIDES[tagName.toUpperCase()];
return tag && tag[propName.toLowerCase()] || false;
}
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ICBsZXQgdGFnID0gQVRUUl9PVkVSUklERVNbdGFnTmFtZS50b1VwcGVyQ2FzZSgpXTtcbiAgcmV0dXJuICh0YWcgJiYgdGFnW3Byb3BOYW1lLnRvTG93ZXJDYXNlKCldKSB8fCBmYWxzZTtcbn1cbiJdLCJzb3VyY2VSb290IjoiIn0=