Hi I am using GWT and its standart way to support history via "History" class. It is very convenient but how can I remove anchor part from an url? For example:
My base url:
http://www.mysuperwebsite.com/myapp
While using applicati开发者_C百科on I move to a place that adds new history item.
In code:
History.newItem("funnygame");
As result:
http://www.mysuperwebsite.com/myapp#funnygame
I change place one more time:
In code:
History.newItem("notsofunnygames");
As result:
http://www.mysuperwebsite.com/myapp#notsofunnygames
Then I want to go back to my home page (http://www.mysuperwebsite.com/myapp).
What should be placed in code?:
????
to get back to:
http://www.mysuperwebsite.com/myapp
Is there any standart way I can achieve my goal?
If I add something like this:
History.newItem("");
or
History.newItem(null);
the url will become
http://www.mysuperwebsite.com/myapp#
And this is not what I am lloking for, I need it without sharp character.
If you use History.newItem(null);
a new event will be fired.
As a result, you will toggle your home page :
http://www.mysuperwebsite.com/myapp#
Having or not a # at the end is the same thing, am I wrong ?
EDIT:
...
// Get the last part of the url and remove #token
String s = Location.getHref().substring(Location.getHref().lastIndexOf("/"));
s = s.substring(0, s.indexOf("#")-1);
setToken(s);
...
protected native void setToken(String token) /*-{
$wnd.history.pushState({},'', token);
}-*/;
The anchor is identified by a #
, so you can use the following to remove it:
int index = link.indexOf('#');
if (index != -1) {
link = link.substring(0, index);
}
If you dont want a historytoken you are probably using history wrong. If you're not intending to fiddle with navigation i would recommend using GwtEvent / EventHandler. Which is essentially what gwt's History class does, in addition to linking those events to the navigation history.
You can create a tool class, and you call it when History changes.
public class UrlUpdater {
public static void removeHashIfEmpty() {
if(isHashEmpty())
removeHash();
}
private static boolean isHashEmpty() {
return "#".equals(Window.Location.getHash());
}
private static void removeHash() {
updateURLWithoutReloading(Window.Location.createUrlBuilder().setHash(null).buildString());
}
private static native void updateURLWithoutReloading(String newUrl) /*-{
$wnd.history.replaceState({}, null, newUrl);
}-*/;
}
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