I managed to do it with just macros and CSS. One thing I could not avoid is
copying line breaks before and after the code. Hope there will be a plugin
someday that will overcome that, as well as do away with the table wrapper.
Here is a self-contained demo tiddler.
\define code(tx)
<table class="mycodeblock"><tr><td>
```$tx$
```
</td><td><$button class="tc-btn-invisible" message="tm-copy-to-clipboard"
param=<<__tx__>> tooltip={{$:/language/Buttons/CopyToClipboard/Hint}}>{{$:
/core/images/copy-clipboard}}</$button></td></tr></table>
\end
<style>
table.mycodeblock {
border: none;
margin: 7px 0 11px;
}
table.mycodeblock pre {
margin: 0;
}
table.mycodeblock td {
border: none;
padding: 0;
position: relative;
}
table.mycodeblock button {
position: absolute;
left: -30px;
top: 2px;
}
table.mycodeblock button svg.tc-image-button {
height: 2em;
width: 2em;
fill: none;
}
table.mycodeblock:hover button svg.tc-image-button {
fill: <<color tiddler-controls-foreground>>;
animation: 0.35s cubic-bezier(.35, 0, .35, 1) 2 alternate;
animation-name: breathe,blink;
}
table.mycodeblock button:hover svg.tc-image-button {
fill: <<color orange>>;
}
@keyframes blink {
from { opacity: 1; }
to { opacity: .35; }
}
@keyframes breathe {
from { transform: scale(1); }
to { transform: scale(1.5); }
}
</style>
in your tiddlers just write :
<<code """
code here
more code
""">>
On Saturday, April 28, 2018 at 5:17:04 PM UTC-7, Rustem wrote:
>
> That works, thanks. Would be great though, to have the button appear
> inside the block, on hover.
>
> On Saturday, April 28, 2018 at 2:31:13 AM UTC-7, BurningTreeC wrote:
>>
>> hi @Rustem
>>
>> you could just create a macro in a tiddler say $:/_macros tagged with
>> $:/tags/Macro with the content:
>>
>> \define code(text)
>> <<copy-to-clipboard """$text$""">>
>> ```
>> $text$
>> ```
>> \end
>>
>> in your tiddlers just write:
>>
>> <<code """
>>
>> code here
>>
>> more code
>>
>> """>>
>>
>
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