blob: 1f1dc483891a645213ad0ad5ccfb3d2ab48f5d75 (
plain)
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
|
/*
* Module : firefox/firefox-injected-compute.js
* Copyright : (c) 2011-2012, Galois, Inc.
*
* Maintainer :
* Stability : Provisional
* Portability: Not Portable (Firefox only)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @param {!string} css The css to inject.
*/
var addGlobalStyle = function(css) {
var head = document.getElementsByTagName('head')[0]; // find head element, which should exist
if (!head) {
head = document.createElement('head');
// XXX this is perhaps not reliable?
document.body.appendChild(head);
}
var style = document.createElement('style'); // create <style> element
style.type = 'text/css';
if (style.styleSheet) { // for some cross-browser problem
style.styleSheet.cssText = css; // attach CSS text to style elt
} else {
style.appendChild(document.createTextNode(css)); // attach CSS text to style elt
}
head.appendChild(style); // attach style element to head
};
/**
* @return {{on: function(!string, function(*)), emit: function(!string, *)}}
*/
var obtainComputePort = function() {
var port = self.port;
port.on('injectCSS', addGlobalStyle);
return self.port;
};
|
