On my gwt project. i have a script that call the dictionary:
<script type="text/javascript" src=conf/iw_dictionary.js></script>
instead of writing this script element in the html file. i want to inject it into the html from the entry point, on the module load.
how can i do it?
Use com.google.gwt.core.client.ScriptInjector, since it was created specifically for stuff like this
ScriptInjector.fromUrl("conf/iw_dictionary.js").setCallback(
new Callback<Void, Exception>() {
public void onFailure(Exception reason) {
Window.alert("Script load failed.");
}
public void onSuccess(Void result) {
Window.alert("Script load success.");
}
}).inject();
ScriptInjector class is available in GWT_V2.7.0. If I have to inject a javascript file with GWT_V.1.x then Is it possible or not?
Basically you inject the script element in your onModuleLoad():
Element head = Document.get().getElementsByTagName("head").getItem(0);
ScriptElement sce = Document.get().createScriptElement();
sce.setType("text/javascript");
sce.setSrc("conf/iw_dictionary.js");
head.appendChild(sce);
The browser will automatically load it as soon as it's injected.
You could simply add a <script> element in your *.gwt.xml file.
<script src='conf/iw_dictionary.js' />
onModuleLoad will only be called once the script is loaded (as if you had it in your html page).
<script src='conf/iw_dictionary.js' /> in Main.gwt.xml file. My question to you is, Will this work in gwt V1.XXXX too?
xsiframe which doesn't support <script> in module files (you then have to use ScriptInjector or include the script in your HTML host page instead).The answers form jusio, Dom and Thomas Broyer are all valid here. In my particular case, I was looking to inject a series of polyfill scripts into GWT for some IE8 support we needed when running native JS code. The polyfill scripts needed to be available to the GWT iframe's window context - NOT the host page. To do that, using ScriptInjector was the correct approach as it attaches the script at that level. You can make ScriptInjector install the scripts to a host window by using setWindow(TOP_WINDOW). Adding scripts with the <script> tag in my *.gwt.xml file seemed to be attaching to the host window as did using @Dom's approach.
