RmlUi/community

Martin Suffer

@InactivatedPyschiopath

@mikke89 thanks!

Michael R. P. Ragazzon

@mikke89

Just added a search box on the documentation site! Hope you find it useful, let me know if you find any issues :)

https://mikke89.github.io/RmlUiDoc/search.html

Martin Suffer

@InactivatedPyschiopath

thanks! it's great

Martin Suffer

@InactivatedPyschiopath

@mikke89 I'm trying to add openh264 to rmlui, do you have any plan for that?

Michael R. P. Ragazzon

@mikke89

Haven't worked with that library before, let us know if you have any issues integrating it. Most likely you won't need any specific support from the RmlUi side, the library is quite flexible so you should be able to integrate it from the client side.

Martin Suffer

@InactivatedPyschiopath

Haven't worked with that library before, let us know if you have any issues integrating it. Most likely you won't need any specific support from the RmlUi side, the library is quite flexible so you should be able to integrate it from the client side.

@mikke89 yes I could decode and get the frame I guess I will face some issues to draw them in rmlui thanks for the help I will try to make it stable and send a commit to rmlui, lightweight mp4 files are extremely helpful for creating cool backgrounds.

Jeff425

@Jeff425

Hey @mikke89 I am getting a formatting error with tables Element has a display type 'table-row-group', but is not located in a table. It will not be formatted. In element tbody < table.commandBox < body < #root#main using the style sheet from https://mikke89.github.io/RmlUiDoc/pages/rcss/tables.html and my table is formatted as such

<table class='commandBox' data-model='commandModel'><tbody>
<tr class='commandLog'><td>{{commandLog}}</td></tr>
<tr class='commandInput'><td><input type='text' data-value='commandInput' /></td></tr>
</tbody></table>

I feel like I am missing something obvious (or if I need to change the table RCSS)

Jeff425

@Jeff425

Also love that you are working on flexbox support. Such an easy to use responsive layout

Jeff425

@Jeff425

Ah it seems using position absolute was causing issues with the table

Michael R. P. Ragazzon

@mikke89

@Jeff425 That's not the best error message for this situation certainly! Which element had absolute position here, the table or tbody?

Thanks, just getting started on flexbox, we'll see how it goes :)

Marco Bortolin

@barotto

I had the same problem with a table with absolute position. I solved putting the table inside an absolutely positioned div.

Michael R. P. Ragazzon

@mikke89

@barotto I don't think I ever tested this actually, thanks for letting me know, I'll see if we can do something about it. At least a better error message.

Marco Bortolin

@barotto

Just did a cursory look at the source code and I think this happens because when a table has absolute position it's added as such in the block_context_box obj but the LayoutTable::FormatTable won't be called in the CloseAbsoluteElements, and table elements have Static position. I also think putting a table inside an absolute div would be an acceptable workaround for this case, assuming a more meaningful error message is also provided.

Michael R. P. Ragazzon

@mikke89

Ah, right, that's a good start. I'll see if there is an easy fix, otherwise I'll just resort to an error message with your work-around.

Jeff425

@Jeff425

@mikke89 sorry for late reply, yeah it was on the table element itself. I ended up doing the same thing barotto did to fix it

Jeff425

@Jeff425

Is it possible to drag an element from one document to another?

Jeff425

@Jeff425

Another question: Is it possible to remove focus when ProcessMouseButtonDown(0, ...) is called while hovering over no elements?

Jeff425

@Jeff425

And no documents

Michael R. P. Ragazzon

@mikke89

@Jeff425 Yes, see the drag sample to do exactly this. As for removing focus, you could always do that manually if nothing captures the mouse button.

Jeff425

@Jeff425

Thanks for the help so far! Using context->GetRootElement()->Focus(); to remove focus but that doesn't seem to remove it from the input element. UnfocusDocument doesn't work as I don't have any other document on the screen. Is there an easy way to remove focus that I am missing?

Michael R. P. Ragazzon

@mikke89

@Jeff425 No problem! :) I think you have the right idea with context->GetRootElement()->Focus();, this is where I would start. Not sure why it doesn't work, maybe we want to do something about that? You could also try Focus on the document itself.

Jeff425

@Jeff425

I created a blank document to focus for this situation. That seems to work. Would be nice to have a context->Unfocus(); function as an easier solution

Marco Bortolin

@barotto

Hi, I need to use full paths with <img src="..."> on linux, is there any particular reason why the leading '/' character is stripped off from the texture source?

Michael R. P. Ragazzon

@mikke89

@barotto Yeah, I don't know why that is done. The whole path handling could need some improvements, see this issue here: mikke89/RmlUi#161

I'm also a bit afraid of changing it, because it will for sure break things for someone. And there are plenty of workarounds.

Marco Bortolin

@barotto

Thanks for the pointer. I can see why you're reluctant to touch the whole path handling system, that would certainly be a can of worms... For now I'll fix this issue adding an extra '/'.

Michael R. P. Ragazzon

@mikke89

Appreciate your understanding :)

Marco Bortolin

@barotto

What is the proper way to close/unload documents? Do I need to remove every event listener attached to any child element first?

Michael R. P. Ragazzon

@mikke89

Event listeners and everything is automatically removed, so there is no need to do that. However, note that documents aren't actually destroyed until the next call to Context::Update so be careful with lifetime issues this could cause in your code.

Marco Bortolin

@barotto

yes, in fact I have a problem with the lifetime of event listeners, where if i Close() a document and then delete an associated listener, i get a segfault when calling Rml::Shutdown(), unless i remove the listener from the document before deleting it. I was wandering if there exist a RemoveAllListeners or equivalent, or if I need to keep track of every listener added to every child element of a document.

Michael R. P. Ragazzon

@mikke89

Yeah, this issue has been discussed before. The easiest way really is to call Context::Update after Close. Then, it should be safe to delete your listener objects.

Marco Bortolin

@barotto

ok, thanks

wh1t3lord

@wh1t3lord

Hello guys. I hope we can implement this feature https://www.w3.org/TR/css-flexbox-1/

:))

Michael R. P. Ragazzon

@mikke89

@diamondhat Already working on it in the flexbox branch :)

Ravbug

@Ravbug

I updated RmlUi to 4.2 from a dev version of 4.0 and I noticed that I'm no longer getting change events on <select> elements
Clicks on buttons and change events on sliders work
I'm adding the change events in code like this for both sliders and select elements:

element->AddEventListener(Rml::EventId::Change, new Handler(...));

Michael R. P. Ragazzon

@mikke89

@Ravbug Hm, we did make some changes to the select element, so it could be that we broke something. But it seems to work well for me in all my testing. Can you post a complete reproducible, preferably a unit test?

Ravbug

@Ravbug

@mikke89 I have very simple RML and C++ which reproduces the issue:

<rml>
    <head>
        <link type="text/rcss" href="default.rcss"></link>
        <style>
            *{
                font-size: 30dp
            }
        </style>
    </head>
    <body>
        <main>
            <p id="diag"></p>
            <br></br>
           <p>
               Select Mesh<br />
               <select id="sel">
                    <option selected>Cube</option>
                    <option>Cone</option>
                    <option>Cylinder</option>
                    <option>Sphere</option>
               </select>
           </p>
        </main>
    </body>
</rml>

struct SelectionEventListener : public Rml::EventListener{
        void ProcessEvent(Rml::Event& evt) override{
            cout << "selection event triggered" << endl;
        }
    };

    doc->GetElementById("sel")->AddEventListener(Rml::EventId::Change, new SelectionEventListener);

struct BtnEventListener : public Rml::EventListener{
        void ProcessEvent(Rml::Event& evt) override{
            cout << "button event triggered" << endl;
        }
    };
 doc->GetElementById("btn")->AddEventListener(Rml::EventId::Click, new BtnEventListener);

When run, "button event triggered" is printed while "selection event triggered" is not printed

I can try to put together a test app if necessary

Michael R. P. Ragazzon

@mikke89

Ah, I managed to reproduce with that code, thanks. I see the issue now, there are no values on the options. Thus the value of the select element doesn't actually change when a new option is selected, and there is no resulting change event. Not sure how this worked before, but I do think that the new behavior makes some sense, what do you think?

Ravbug

@Ravbug

So the options need to have value=1, value=2, ...? If so, then I think the documentation should mention that change events are not fired for options that do not have values (unless it already does and I missed that)

If options having no value is never correct, then it might also be worth logging a warning if it encounters one while loading a document

Michael R. P. Ragazzon

@mikke89

I see there might be some value to having the old behavior, I'll see if I can make it work again without too much trouble.

Ravbug

@Ravbug

I have some C++ code that generates options and added them to a select, having them automatically get ascending values (instead of needing to call SetProperty) would be helpful but not completely necessary

Michael R. P. Ragazzon

@mikke89

I think automatically giving them a value would be quite unexpected behavior in my view, not something I'd want.

Michael R. P. Ragazzon

@mikke89

@Ravbug Could you test the latest master to see if it all works as expected now? :)

Ravbug

@Ravbug

Just tried latest, it's working as expected :) @mikke89

Michael R. P. Ragazzon

@mikke89

Great!

wh1t3lord

@wh1t3lord

Hello again. And it is great that you work on flexbox feature. If I have a free time I will try to implement Vulkan example.

Michael R. P. Ragazzon

@mikke89

Thanks! Sounds good, would be nice to have a Vulkan backend :)

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