CODEWITHSUNDEEP
gwthyperlinkgwt-history
markzzz
markzzz

Reputation: 47945

GWT - Two Question on Hyperlink - Manage its History token parameter + insert it in a span

I need to manage a Hyperlink object in GWT. What i need is :

1 - add it into a span (like InlineLabel)

I tried Hyperlink affitta_3_span_1=new Hyperlink(result.get(i)[0], "");, but it create somethings like this :

<div class="affitta_3_span_1">
    <a href="#">t1</a>
</div>

in fact i need this :

<span class="affitta_3_span_1">
    <a href="#">t1</a>
</span>

2 - manage Hyperlink History token

I put my internal links such Hyperlink affitta_3_span_1=new Hyperlink(result.get(i)[1], "article/"+result.get(i)[0]) but i don't know how to get the parameter on token when they call the onValueChange() function. How can I do it?

Cheers

Upvotes: 0

Views: 907

Answers (3)

Clint
Clint

Reputation: 1094

For the first question, use an Anchor since it's inlined.

For the second one, you need to 'listen' to history change events by extending ValueChangeHandler and calling History.addValueChangeHandler(this); in your class. For example,

class MyClass implements ValueChangeHandler<String> {
  public MyClass {
     ...
     History.addValueChangeHandler(this);
  }   

  @Override
  public void onValueChange(ValueChangeEvent<String> event) {
    String token = event.getValue();
    if (token.equals("foo")) {
      // go to one page
    } else if token.equals("bar")) {
      // go to another page
    }
  }
}

Upvotes: 1

Riley Lark
Riley Lark

Reputation: 20890

Use an Anchor. The output is just an <a> tag that has no <div> or <span> around it, but if you need a <span> you can add it with an HTML panel.

To set a URL that history can access, just put a # at the beginning. Something like

myAnchor.setText(result.get(i)[1]);
myAnchor.setUrl("#article/"+result.get(i)[0]);

Now, when you click myAnchor, onValueChange will be passed the token "article/whatever". The unfortunate side effect is that your urls look like http://example.com/#article/whatever, but that's the only way to get the token to the History object with just GWT.

Upvotes: 1

Gipsy King
Gipsy King

Reputation: 1577

If you only need a ClickHandler on your link and no history support, you can use the Anchor widget, which is based on an <a> tag that has display: inline by default.

Upvotes: 0

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