92 lines
2.8 KiB
JavaScript
92 lines
2.8 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Copyright (c) 2013-present, Facebook, Inc.
|
||
|
|
*
|
||
|
|
* This source code is licensed under the MIT license found in the
|
||
|
|
* LICENSE file in the root directory of this source tree.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*eslint-disable fb-www/unsafe-html */
|
||
|
|
|
||
|
|
var ExecutionEnvironment = require('./ExecutionEnvironment');
|
||
|
|
|
||
|
|
var invariant = require('./invariant');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Dummy container used to detect which wraps are necessary.
|
||
|
|
*/
|
||
|
|
var dummyNode = ExecutionEnvironment.canUseDOM ? document.createElement('div') : null;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Some browsers cannot use `innerHTML` to render certain elements standalone,
|
||
|
|
* so we wrap them, render the wrapped nodes, then extract the desired node.
|
||
|
|
*
|
||
|
|
* In IE8, certain elements cannot render alone, so wrap all elements ('*').
|
||
|
|
*/
|
||
|
|
|
||
|
|
var shouldWrap = {};
|
||
|
|
|
||
|
|
var selectWrap = [1, '<select multiple="true">', '</select>'];
|
||
|
|
var tableWrap = [1, '<table>', '</table>'];
|
||
|
|
var trWrap = [3, '<table><tbody><tr>', '</tr></tbody></table>'];
|
||
|
|
|
||
|
|
var svgWrap = [1, '<svg xmlns="http://www.w3.org/2000/svg">', '</svg>'];
|
||
|
|
|
||
|
|
var markupWrap = {
|
||
|
|
'*': [1, '?<div>', '</div>'],
|
||
|
|
|
||
|
|
'area': [1, '<map>', '</map>'],
|
||
|
|
'col': [2, '<table><tbody></tbody><colgroup>', '</colgroup></table>'],
|
||
|
|
'legend': [1, '<fieldset>', '</fieldset>'],
|
||
|
|
'param': [1, '<object>', '</object>'],
|
||
|
|
'tr': [2, '<table><tbody>', '</tbody></table>'],
|
||
|
|
|
||
|
|
'optgroup': selectWrap,
|
||
|
|
'option': selectWrap,
|
||
|
|
|
||
|
|
'caption': tableWrap,
|
||
|
|
'colgroup': tableWrap,
|
||
|
|
'tbody': tableWrap,
|
||
|
|
'tfoot': tableWrap,
|
||
|
|
'thead': tableWrap,
|
||
|
|
|
||
|
|
'td': trWrap,
|
||
|
|
'th': trWrap
|
||
|
|
};
|
||
|
|
|
||
|
|
// Initialize the SVG elements since we know they'll always need to be wrapped
|
||
|
|
// consistently. If they are created inside a <div> they will be initialized in
|
||
|
|
// the wrong namespace (and will not display).
|
||
|
|
var svgElements = ['circle', 'clipPath', 'defs', 'ellipse', 'g', 'image', 'line', 'linearGradient', 'mask', 'path', 'pattern', 'polygon', 'polyline', 'radialGradient', 'rect', 'stop', 'text', 'tspan'];
|
||
|
|
svgElements.forEach(function (nodeName) {
|
||
|
|
markupWrap[nodeName] = svgWrap;
|
||
|
|
shouldWrap[nodeName] = true;
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the markup wrap configuration for the supplied `nodeName`.
|
||
|
|
*
|
||
|
|
* NOTE: This lazily detects which wraps are necessary for the current browser.
|
||
|
|
*
|
||
|
|
* @param {string} nodeName Lowercase `nodeName`.
|
||
|
|
* @return {?array} Markup wrap configuration, if applicable.
|
||
|
|
*/
|
||
|
|
function getMarkupWrap(nodeName) {
|
||
|
|
!!!dummyNode ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Markup wrapping node not initialized') : invariant(false) : void 0;
|
||
|
|
if (!markupWrap.hasOwnProperty(nodeName)) {
|
||
|
|
nodeName = '*';
|
||
|
|
}
|
||
|
|
if (!shouldWrap.hasOwnProperty(nodeName)) {
|
||
|
|
if (nodeName === '*') {
|
||
|
|
dummyNode.innerHTML = '<link />';
|
||
|
|
} else {
|
||
|
|
dummyNode.innerHTML = '<' + nodeName + '></' + nodeName + '>';
|
||
|
|
}
|
||
|
|
shouldWrap[nodeName] = !dummyNode.firstChild;
|
||
|
|
}
|
||
|
|
return shouldWrap[nodeName] ? markupWrap[nodeName] : null;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = getMarkupWrap;
|