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# haxe-ui
  • i
    Copy code
    src/MainView.hx:95: reactionDropdown selected index: -1
src/MainView.hx:98: reactionDropdown selected index: -1
    trace of before and after changing
  • b
    might be an issue with the validation sequence, what happens if you just do (for testing): 
    reactionDropdown.selectedIndex = 1
  • i
    I was doing that before (setting it to 0) and had the same problem
  • b
    sounds like a bug then
  • i
    should it also be calling any bound 
    onChange
    after that?
  • b
    yup
  • i
    ah that makes it easier then
  • b
    can you do me a tiny, but totally unrelated, favour: in 
    haxe.ui.backend.hxwidgets.size.NotebookSize.hx
    can you remove the windows check on line 14 (and 16) so it just always does 
    h += 4
  • b
    and send me a screenshot like the above
  • b
    interesting, thanks, i thought it was a windows only thing, seems its a wx thing
  • i
    the bottom padding of notebook/tabview?
  • b
    yeah, wx "best size" is 4px off
  • b
    you can see that now your text input looks better, ie, the page has uniform padding all round
  • i
    ah yeah it does look nicer
  • b
    alright, that 4px fix is in now... so you can revert your local changes, ill try and repro the dropdown issue
  • m
    hi
  • b
    i cant repro:
  • b
    Copy code
    xml
    <dropdown id="dd1" width="100">
        <data>
            <item text="Item A" />
            <item text="Item B" />
            <item text="Item C" />
        </data>
    </dropdown>
    <dropdown id="dd2" width="100" />
  • b
    Copy code
    haxe
        dd1.onChange = (_) -> {
            var selectedText = dd1.selectedItem.text;
            var ds = new ArrayDataSource<String>();
            ds.add(selectedText + " - 1");
            ds.add(selectedText + " - 2");
            ds.add(selectedText + " - 3");
            ds.add(selectedText + " - 4");
            ds.add(selectedText + " - 5");
            dd2.dataSource = ds;
            dd2.selectedIndex = 2;
        }
  • b
    am i doing something differently to you @icy-zebra-52882 ?
  • i
    doesn't seem like it, I'm adding datasource like that and then setting selectedIndex
  • i
    possibly it's different behaviour on GTK or wxGTK?
  • b
    seems odd if that is the case
  • b
    does the code above work for you?
  • i
    Copy code
    hx
var source = new ArrayDataSource<String>();
trace("Character datasource data:");
for (react in npc.reactions) {
    trace(react.id);
    source.add('${react.tag} (${react.id})');
}
reactionDropdown.dataSource = source;
// trace('Reaction dropdown data:');
// for (i in 0...reactionDropdown.dataSource.size) {
//     trace(reactionDropdown.dataSource.get(i));
// }

reactionDropdown.selectedIndex = 0;
    is my current code
  • i
    functionally it looks identical
  • b
    defo looks identical
  • c
    Sorry if this has been asked before, not able to find it anywhere by search, or in the docs. Basic problem, using the html5 backend, I have a component which builds a raw DOM child element, and I need to update the class property of that element. The child was originally added with 
    this.element.append(child)
    , I thought keeping the child around in a class member field would allow me to mutate it later by 
    this._child.className = "foobar"
    . However this doesn't update the DOM, but printing the child I can see that class was updated. Are all interactions with the DOM immutable (by value / copy)? In that case, how would I mutate elements? Would I need to remove that element, and append the modified child again? If so I don't see any API to remove children.
  • b
    certainly, by description, sounds totally fine... if the DOMElement is there (and added) as it appears to be, then you should be able to change that like you any other node
  • b
    does the _child (or child) have a size? Maybe thats the issue
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