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Diffstat (limited to 'node_modules/react-dom/lib/CSSPropertyOperations.js')
| -rw-r--r-- | node_modules/react-dom/lib/CSSPropertyOperations.js | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/node_modules/react-dom/lib/CSSPropertyOperations.js b/node_modules/react-dom/lib/CSSPropertyOperations.js new file mode 100644 index 000000000..03837d8c9 --- /dev/null +++ b/node_modules/react-dom/lib/CSSPropertyOperations.js @@ -0,0 +1,208 @@ +/** + * Copyright 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. + * + */ + +'use strict'; + +var CSSProperty = require('./CSSProperty'); +var ExecutionEnvironment = require('fbjs/lib/ExecutionEnvironment'); +var ReactInstrumentation = require('./ReactInstrumentation'); + +var camelizeStyleName = require('fbjs/lib/camelizeStyleName'); +var dangerousStyleValue = require('./dangerousStyleValue'); +var hyphenateStyleName = require('fbjs/lib/hyphenateStyleName'); +var memoizeStringOnly = require('fbjs/lib/memoizeStringOnly'); +var warning = require('fbjs/lib/warning'); + +var processStyleName = memoizeStringOnly(function (styleName) { + return hyphenateStyleName(styleName); +}); + +var hasShorthandPropertyBug = false; +var styleFloatAccessor = 'cssFloat'; +if (ExecutionEnvironment.canUseDOM) { + var tempStyle = document.createElement('div').style; + try { + // IE8 throws "Invalid argument." if resetting shorthand style properties. + tempStyle.font = ''; + } catch (e) { + hasShorthandPropertyBug = true; + } + // IE8 only supports accessing cssFloat (standard) as styleFloat + if (document.documentElement.style.cssFloat === undefined) { + styleFloatAccessor = 'styleFloat'; + } +} + +if (process.env.NODE_ENV !== 'production') { + // 'msTransform' is correct, but the other prefixes should be capitalized + var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/; + + // style values shouldn't contain a semicolon + var badStyleValueWithSemicolonPattern = /;\s*$/; + + var warnedStyleNames = {}; + var warnedStyleValues = {}; + var warnedForNaNValue = false; + + var warnHyphenatedStyleName = function (name, owner) { + if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) { + return; + } + + warnedStyleNames[name] = true; + process.env.NODE_ENV !== 'production' ? warning(false, 'Unsupported style property %s. Did you mean %s?%s', name, camelizeStyleName(name), checkRenderMessage(owner)) : void 0; + }; + + var warnBadVendoredStyleName = function (name, owner) { + if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) { + return; + } + + warnedStyleNames[name] = true; + process.env.NODE_ENV !== 'production' ? warning(false, 'Unsupported vendor-prefixed style property %s. Did you mean %s?%s', name, name.charAt(0).toUpperCase() + name.slice(1), checkRenderMessage(owner)) : void 0; + }; + + var warnStyleValueWithSemicolon = function (name, value, owner) { + if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) { + return; + } + + warnedStyleValues[value] = true; + process.env.NODE_ENV !== 'production' ? warning(false, 'Style property values shouldn\'t contain a semicolon.%s ' + 'Try "%s: %s" instead.', checkRenderMessage(owner), name, value.replace(badStyleValueWithSemicolonPattern, '')) : void 0; + }; + + var warnStyleValueIsNaN = function (name, value, owner) { + if (warnedForNaNValue) { + return; + } + + warnedForNaNValue = true; + process.env.NODE_ENV !== 'production' ? warning(false, '`NaN` is an invalid value for the `%s` css style property.%s', name, checkRenderMessage(owner)) : void 0; + }; + + var checkRenderMessage = function (owner) { + if (owner) { + var name = owner.getName(); + if (name) { + return ' Check the render method of `' + name + '`.'; + } + } + return ''; + }; + + /** + * @param {string} name + * @param {*} value + * @param {ReactDOMComponent} component + */ + var warnValidStyle = function (name, value, component) { + var owner; + if (component) { + owner = component._currentElement._owner; + } + if (name.indexOf('-') > -1) { + warnHyphenatedStyleName(name, owner); + } else if (badVendoredStyleNamePattern.test(name)) { + warnBadVendoredStyleName(name, owner); + } else if (badStyleValueWithSemicolonPattern.test(value)) { + warnStyleValueWithSemicolon(name, value, owner); + } + + if (typeof value === 'number' && isNaN(value)) { + warnStyleValueIsNaN(name, value, owner); + } + }; +} + +/** + * Operations for dealing with CSS properties. + */ +var CSSPropertyOperations = { + + /** + * Serializes a mapping of style properties for use as inline styles: + * + * > createMarkupForStyles({width: '200px', height: 0}) + * "width:200px;height:0;" + * + * Undefined values are ignored so that declarative programming is easier. + * The result should be HTML-escaped before insertion into the DOM. + * + * @param {object} styles + * @param {ReactDOMComponent} component + * @return {?string} + */ + createMarkupForStyles: function (styles, component) { + var serialized = ''; + for (var styleName in styles) { + if (!styles.hasOwnProperty(styleName)) { + continue; + } + var styleValue = styles[styleName]; + if (process.env.NODE_ENV !== 'production') { + warnValidStyle(styleName, styleValue, component); + } + if (styleValue != null) { + serialized += processStyleName(styleName) + ':'; + serialized += dangerousStyleValue(styleName, styleValue, component) + ';'; + } + } + return serialized || null; + }, + + /** + * Sets the value for multiple styles on a node. If a value is specified as + * '' (empty string), the corresponding style property will be unset. + * + * @param {DOMElement} node + * @param {object} styles + * @param {ReactDOMComponent} component + */ + setValueForStyles: function (node, styles, component) { + if (process.env.NODE_ENV !== 'production') { + ReactInstrumentation.debugTool.onHostOperation({ + instanceID: component._debugID, + type: 'update styles', + payload: styles + }); + } + + var style = node.style; + for (var styleName in styles) { + if (!styles.hasOwnProperty(styleName)) { + continue; + } + if (process.env.NODE_ENV !== 'production') { + warnValidStyle(styleName, styles[styleName], component); + } + var styleValue = dangerousStyleValue(styleName, styles[styleName], component); + if (styleName === 'float' || styleName === 'cssFloat') { + styleName = styleFloatAccessor; + } + if (styleValue) { + style[styleName] = styleValue; + } else { + var expansion = hasShorthandPropertyBug && CSSProperty.shorthandPropertyExpansions[styleName]; + if (expansion) { + // Shorthand property that IE8 won't like unsetting, so unset each + // component to placate it + for (var individualStyleName in expansion) { + style[individualStyleName] = ''; + } + } else { + style[styleName] = ''; + } + } + } + } + +}; + +module.exports = CSSPropertyOperations;
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