FilesExpand file tree

master

/

css.js

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

284 lines (239 loc) · 7.14 KB

master

/

css.js

Copy path

Top

File metadata and controls

• Code
• Blame

284 lines (239 loc) · 7.14 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

var loader = require("@loader");

var steal = require("@steal");

var isNode = typeof process === "object" && {}.toString.call(process) ===

"[object process]";

var importRegEx = /@import [^uU]['"]?([^'"\)]*)['"]?/g;

var resourceRegEx = /url\(['"]?([^'"\)]*)['"]?\)/g;

var waitSeconds = (loader.cssOptions && loader.cssOptions.timeout)

? parseInt(loader.cssOptions.timeout, 10) : 60;

var onloadCss = function(link, cb){

var styleSheets = getDocument().styleSheets,

i = styleSheets.length;

while( i-- ){

if( styleSheets[ i ].href === link.href ){

return cb();

}

}

setTimeout(function() {

onloadCss(link, cb);

});

};

function isIE9() {

var doc = getDocument();

// https://github.com/conditionizr/conditionizr/blob/111964e63ddda5f2db5dbc3c1587dfda9f5ca3b2/detects/ie9.js#L6

return doc &&

!!(Function('/*@cc_on return (/^9/.test(@_jscript_version) && /MSIE 9\.0(?!.*IEMobile)/i.test(navigator.userAgent)); @*/')());

}

function getDocument() {

if(typeof doneSsr !== "undefined" && doneSsr.globalDocument) {

return doneSsr.globalDocument;

}

if(typeof document !== "undefined") {

return document;

}

throw new Error("Unable to load CSS in an environment without a document.");

}

function getHead() {

var doc = getDocument();

var head = doc.head || doc.getElementsByTagName("head")[0];

if(!head) {

var docEl = doc.documentElement || doc;

head = doc.createElement("head");

docEl.insertBefore(head, docEl.firstChild);

}

return head;

}

/**

*

*/

function CSSModule(load, loader) {

if(typeof load === "object") {

this.load = load;

this.loader = loader;

this.address = this.load.address;

this.source = this.load.source;

} else {

this.address = load; // this is a string

this.source = loader; // this is a string

}

}

// required for IE9 stylesheet limit hack

CSSModule.cssCount = 0;

CSSModule.ie9MaxStyleSheets = 31;

CSSModule.currentStyleSheet = null;

CSSModule.prototype = {

injectLink: function(){

if(this._loaded) {

return this._loaded;

}

if(this.linkExists()) {

this._loaded = Promise.resolve('');

return this._loaded;

}

// inspired by https://github.com/filamentgroup/loadCSS

var doc = getDocument();

var link = this.link = doc.createElement("link");

link.type = "text/css";

link.rel = "stylesheet";

link.href = this.address;

// wait until the css file is loaded

this._loaded = new Promise(function(resolve, reject) {

var timeout = setTimeout(function() {

reject('Unable to load CSS');

}, waitSeconds * 1000);

var loadCB = function(event) {

clearTimeout(timeout);

link.removeEventListener("load", loadCB);

link.removeEventListener("error", loadCB);

if(event && event.type === "error"){

reject('Unable to load CSS');

} else {

resolve('');

}

};

// This code is for browsers that don’t support onload

// No support for onload (it'll bind but never fire):

// * Android 4.3 (Samsung Galaxy S4, Browserstack)

// * Android 4.2 Browser (Samsung Galaxy SIII Mini GT-I8200L)

// * Android 2.3 (Pantech Burst P9070)

// * Zombie headless browser

// Weak inference targets Android < 4.4 and

// a fallback for IE 8 and beneath

if("isApplicationInstalled" in navigator || !link.addEventListener) {

// fallback, polling styleSheets

onloadCss(link, loadCB);

} else if(navigator.noUI){

// Zombie

loadCB();

} else {

// attach onload event for all modern browser

link.addEventListener( "load", loadCB );

link.addEventListener( "error", loadCB );

}

getHead().appendChild(link);

});

return this._loaded;

},

injectStyle: function(){

var doc = getDocument();

var head = getHead();

var style = this.style = doc.createElement('style');

// make source load relative to the current page

style.type = 'text/css';

// Starting with IE11, `styleSheet` isn't support but `sheet` is

// https://msdn.microsoft.com/en-us/library/dd347030(v=vs.85).aspx

if (style.sheet) {

style.sheet.cssText = this.source;

} else if (style.styleSheet) {

style.styleSheet.cssText = this.source;

} else {

style.appendChild(doc.createTextNode(this.source));

}

head.appendChild(style);

},

/**

* Inject stylesheets and re-used them to avoid IE9 limit

* https://blogs.msdn.microsoft.com/ieinternals/2011/05/14/stylesheet-limits-in-internet-explorer/

*/

ie9StyleSheetLimitHack: function() {

var doc = getDocument();

// create the sheet to be re-used until limit is reached

if (!CSSModule.cssCount) {

CSSModule.currentStyleSheet = doc.createStyleSheet();

}

CSSModule.cssCount += 1;

CSSModule.currentStyleSheet.cssText += this.source;

// reset the count to force the creation of a new stylesheet

if (CSSModule.cssCount === CSSModule.ie9MaxStyleSheets) {

CSSModule.cssCount = 0;

}

},

// Replace @import's that don't start with a "u" or "U" and do start

// with a single or double quote with a path wrapped in "url()"

// relative to the page

updateURLs: function(){

var rawSource = this.source,

address = this.address;

this.source = rawSource.replace(importRegEx, function(whole, part){

if(isNode) {

return "@import url(" + part + ")";

}else{

return "@import url(" + steal.joinURIs(address, part) + ")";

}

});

if(!loader.isEnv('build')) {

this.source = this.source + "/*# sourceURL=" + address + " */";

this.source = this.source.replace(resourceRegEx, function(whole, part){

return "url(" + steal.joinURIs(address, part) + ")";

});

}

return this.source;

},

getExistingNode: function(){

var doc = getDocument();

var selector = "[href='" + this.address + "']";

return doc.querySelector && doc.querySelector(selector);

},

linkExists: function(){

var styleSheets = getDocument().styleSheets;

for (var i = 0; i < styleSheets.length; ++i) {

if(this.address === styleSheets[i].href){

return true;

}

}

return false;

},

setupLiveReload: function(loader, name){

var head = getHead();

var css = this;

if(loader.liveReloadInstalled) {

var cssReload = loader["import"]("live-reload", {

name: module.id

});

Promise.resolve(cssReload).then(function(reload){

loader["import"](name).then(function(){

reload.once("!dispose/" + name, function(){

css.style.__isDirty = true;

reload.once("!cycleComplete", function(){

head.removeChild(css.style);

});

});

});

});

}

}

};

if(loader.isEnv("production")) {

exports.fetch = function(load) {

var css = new CSSModule(load.address);

return css.injectLink();

};

} else {

exports.instantiate = function(load) {

var loader = this;

var css = new CSSModule(load.address, load.source);

load.source = css.updateURLs();

load.metadata.deps = [];

load.metadata.format = "css";

load.metadata.execute = function(){

if (getDocument()) {

if (isIE9()) {

css.ie9StyleSheetLimitHack();

} else {

css.injectStyle();

}

css.setupLiveReload(loader, load.name);

}

return loader.newModule({

source: css.source

});

};

};

}

exports.CSSModule = CSSModule;

exports.getDocument = getDocument;

exports.getHead = getHead;

exports.locateScheme = true;

exports.buildType = "css";

exports.includeInBuild = true;

exports.pluginBuilder = "steal-css/slim";