| import env from '../core/env'; |
| var urn = 'urn:schemas-microsoft-com:vml'; |
| var win = typeof window === 'undefined' ? null : window; |
| var vmlInited = false; |
| export var doc = win && win.document; |
| export function createNode(tagName) { |
| return doCreateNode(tagName); |
| } // Avoid assign to an exported variable, for transforming to cjs. |
| |
| var doCreateNode; |
| |
| if (doc && !env.canvasSupported) { |
| try { |
| !doc.namespaces.zrvml && doc.namespaces.add('zrvml', urn); |
| |
| doCreateNode = function (tagName) { |
| return doc.createElement('<zrvml:' + tagName + ' class="zrvml">'); |
| }; |
| } catch (e) { |
| doCreateNode = function (tagName) { |
| return doc.createElement('<' + tagName + ' xmlns="' + urn + '" class="zrvml">'); |
| }; |
| } |
| } // From raphael |
| |
| |
| export function initVML() { |
| if (vmlInited || !doc) { |
| return; |
| } |
| |
| vmlInited = true; |
| var styleSheets = doc.styleSheets; |
| |
| if (styleSheets.length < 31) { |
| doc.createStyleSheet().addRule('.zrvml', 'behavior:url(#default#VML)'); |
| } else { |
| // http://msdn.microsoft.com/en-us/library/ms531194%28VS.85%29.aspx |
| styleSheets[0].addRule('.zrvml', 'behavior:url(#default#VML)'); |
| } |
| } |