ember-app-scheduler
Version:
Ember addon to schedule work at different phases of app life cycle.
79 lines • 3.38 kB
JavaScript
import { ConcreteBounds } from '../bounds';
import { moveNodesBefore } from '../dom/helper';
let innerHTMLWrapper = {
colgroup: { depth: 2, before: '<table><colgroup>', after: '</colgroup></table>' },
table: { depth: 1, before: '<table>', after: '</table>' },
tbody: { depth: 2, before: '<table><tbody>', after: '</tbody></table>' },
tfoot: { depth: 2, before: '<table><tfoot>', after: '</tfoot></table>' },
thead: { depth: 2, before: '<table><thead>', after: '</thead></table>' },
tr: { depth: 3, before: '<table><tbody><tr>', after: '</tr></tbody></table>' }
};
// Patch: innerHTML Fix
// Browsers: IE9
// Reason: IE9 don't allow us to set innerHTML on col, colgroup, frameset,
// html, style, table, tbody, tfoot, thead, title, tr.
// Fix: Wrap the innerHTML we are about to set in its parents, apply the
// wrapped innerHTML on a div, then move the unwrapped nodes into the
// target position.
export function domChanges(document, DOMChangesClass) {
if (!document) return DOMChangesClass;
if (!shouldApplyFix(document)) {
return DOMChangesClass;
}
let div = document.createElement('div');
return class DOMChangesWithInnerHTMLFix extends DOMChangesClass {
insertHTMLBefore(parent, nextSibling, html) {
if (html === null || html === '') {
return super.insertHTMLBefore(parent, nextSibling, html);
}
let parentTag = parent.tagName.toLowerCase();
let wrapper = innerHTMLWrapper[parentTag];
if (wrapper === undefined) {
return super.insertHTMLBefore(parent, nextSibling, html);
}
return fixInnerHTML(parent, wrapper, div, html, nextSibling);
}
};
}
export function treeConstruction(document, DOMTreeConstructionClass) {
if (!document) return DOMTreeConstructionClass;
if (!shouldApplyFix(document)) {
return DOMTreeConstructionClass;
}
let div = document.createElement('div');
return class DOMTreeConstructionWithInnerHTMLFix extends DOMTreeConstructionClass {
insertHTMLBefore(parent, referenceNode, html) {
if (html === null || html === '') {
return super.insertHTMLBefore(parent, referenceNode, html);
}
let parentTag = parent.tagName.toLowerCase();
let wrapper = innerHTMLWrapper[parentTag];
if (wrapper === undefined) {
return super.insertHTMLBefore(parent, referenceNode, html);
}
return fixInnerHTML(parent, wrapper, div, html, referenceNode);
}
};
}
function fixInnerHTML(parent, wrapper, div, html, reference) {
let wrappedHtml = wrapper.before + html + wrapper.after;
div.innerHTML = wrappedHtml;
let parentNode = div;
for (let i = 0; i < wrapper.depth; i++) {
parentNode = parentNode.childNodes[0];
}
let [first, last] = moveNodesBefore(parentNode, parent, reference);
return new ConcreteBounds(parent, first, last);
}
function shouldApplyFix(document) {
let table = document.createElement('table');
try {
table.innerHTML = '<tbody></tbody>';
} catch (e) {} finally {
if (table.childNodes.length !== 0) {
// It worked as expected, no fix required
return false;
}
}
return true;
}