| // The GWT code can be installed anywhere, although an iFrame is the best |
| // approach if you want both variable isolation (useful in general, but |
| // critical if you want more than one GWT module on your page) and runAsync |
| // which will need to be able to install additional chunks of code into that |
| // isolated environment later on. |
| |
| // The items that must be provided in any install location are: |
| // $wnd - the location where the bootstrap module is defined. Should also |
| // be the location where the __gwtStatsEvent is defined |
| |
| var frameDoc; |
| |
| function getInstallLocationDoc() { |
| setupInstallLocation(); |
| return frameDoc; |
| } |
| |
| function getInstallLocation() { |
| setupInstallLocation(); |
| return frameDoc.getElementsByTagName('body')[0]; |
| } |
| |
| function setupInstallLocation() { |
| if (frameDoc) { return; } |
| // Create the script frame, making sure it's invisible, but not |
| // "display:none", which keeps some browsers from running code in it. |
| var scriptFrame = $doc.createElement('iframe'); |
| scriptFrame.src = 'javascript:""'; |
| scriptFrame.id = '__MODULE_NAME__'; |
| scriptFrame.style.cssText = 'position:absolute; width:0; height:0; border:none; left: -1000px; top: -1000px; !important'; |
| scriptFrame.tabIndex = -1; |
| $doc.body.appendChild(scriptFrame); |
| |
| frameDoc = scriptFrame.contentDocument; |
| if (!frameDoc) { |
| frameDoc = scriptFrame.contentWindow.document; |
| } |
| |
| // The missing content has been seen on Safari 3 and firebug will |
| // behave incorrectly on soft refresh unless we explicitly set the content |
| // of the frame. However, we don't want to do this when runAsync calls |
| // installCode, so we do it here when we create the iframe. |
| frameDoc.open(); |
| frameDoc.write('<html><head></head><body></body></html>'); |
| frameDoc.close(); |
| |
| var frameDocbody = frameDoc.getElementsByTagName('body')[0]; |
| var script = frameDoc.createElement('script'); |
| script.language='javascript'; |
| var temp = "var $wnd = window.parent;"; |
| script.text = temp; |
| frameDocbody.appendChild(script); |
| } |
