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Diffstat (limited to 'node_modules/fbjs/lib/getStyleProperty.js')
-rw-r--r-- | node_modules/fbjs/lib/getStyleProperty.js | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/getStyleProperty.js b/node_modules/fbjs/lib/getStyleProperty.js new file mode 100644 index 000000000..e3ff91975 --- /dev/null +++ b/node_modules/fbjs/lib/getStyleProperty.js @@ -0,0 +1,53 @@ +'use strict'; + +/** + * Copyright (c) 2013-present, Facebook, Inc. + * All rights reserved. + * + * This source code is licensed under the BSD-style license found in the + * LICENSE file in the root directory of this source tree. An additional grant + * of patent rights can be found in the PATENTS file in the same directory. + * + * @typechecks + */ + +var camelize = require('./camelize'); +var hyphenate = require('./hyphenate'); + +function asString(value) /*?string*/{ + return value == null ? value : String(value); +} + +function getStyleProperty( /*DOMNode*/node, /*string*/name) /*?string*/{ + var computedStyle = void 0; + + // W3C Standard + if (window.getComputedStyle) { + // In certain cases such as within an iframe in FF3, this returns null. + computedStyle = window.getComputedStyle(node, null); + if (computedStyle) { + return asString(computedStyle.getPropertyValue(hyphenate(name))); + } + } + // Safari + if (document.defaultView && document.defaultView.getComputedStyle) { + computedStyle = document.defaultView.getComputedStyle(node, null); + // A Safari bug causes this to return null for `display: none` elements. + if (computedStyle) { + return asString(computedStyle.getPropertyValue(hyphenate(name))); + } + if (name === 'display') { + return 'none'; + } + } + // Internet Explorer + if (node.currentStyle) { + if (name === 'float') { + return asString(node.currentStyle.cssFloat || node.currentStyle.styleFloat); + } + return asString(node.currentStyle[camelize(name)]); + } + return asString(node.style && node.style[camelize(name)]); +} + +module.exports = getStyleProperty;
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