Description
When using line-based (no highlighting) copy-paste, there is different behavior between Windows and Linux. The Linux behavior is preferred, as it is similar to other text or code editors like Notepad++ or Visual Studio.
Environments Tested
Browsers Tested:
- Chrome 83.0.4103.116 (Official Build) (64-bit) on Windows 10 Version 1903
- Chrome 83.0.4103.112 (Official Build) (64-bit) on ChromeOS
I'm not sure what version of CodeMirror is being used, but my example was created using the https://codemirror.net demo box at the time of writing up this issue.
Steps to Reproduce
- Visit https://codemirror.net/ in the browser
- Using the demo panel on the page, place the cursor anywhere in the middle of a line of text. Do not highlight any text.
- Press Ctrl+C to copy the line.
- Move the cursor to any other line of text, anywhere within the line. Do not highlight any text.
- Press Ctrl+V to paste. This is where the behavior differs.
Example
In the example that follows | indicate the copy position, and ^ indicates the paste position:
<!-- Create a simple CodeMirror instance -->
<link rel="stylesheet" href="lib/codemirror.css">
<script src="lib/codemirror.js"></script>
<script>
var editor = CodeMirr|or.fromTextArea(myTextarea, {
lineNum^bers: true
});
</script>
On ChromeOS/Linux, this is the result, which is desirable and expected:
<!-- Create a simple CodeMirror instance -->
<link rel="stylesheet" href="lib/codemirror.css">
<script src="lib/codemirror.js"></script>
<script>
var editor = CodeMirror.fromTextArea(myTextarea, {
var editor = CodeMirror.fromTextArea(myTextarea, {
lineNumbers: true
});
</script>
On Windows, this is the result, which is problematic and unexpected (note that the line was embedded in the middle of the paste position, rather than being placed above it):
<!-- Create a simple CodeMirror instance -->
<link rel="stylesheet" href="lib/codemirror.css">
<script src="lib/codemirror.js"></script>
<script>
var editor = CodeMirror.fromTextArea(myTextarea, {
lineNum var editor = CodeMirror.fromTextArea(myTextarea, {
bers: true
});
</script>
As someone who regularly switches between Windows and Linux, it would be useful to be consistent between the versions, preferably in favor of the way the Linux version handles it. Thanks!