This enables using large OSC buffers in a form that we can publish
to crates.io without blocking on an external crate. Large OSC
buffers are important both for some tunnelling use cases and for
eg: iTerm2 image protocol handling.
Repeated moves or wheel events are collapsed so that we don't clog up
the queue. The queue size doesn't matter as much as the latency of
processing a large queue. For fast or repeated moves the queue can grow
rather quickly, and with what is currently ~25-50 ms round trip per
entry for a remote session, that is a poor UX.
These codes are used to change the color palette, but if the `?`
string is used in place of a color spec, then we must respond with
the current color value string for that palette entry, so lets
implement that!
This one has been bugging me for a while; we now know when we've
wrapped a line and can join it without a line break when double-clicking
to select a word.
This commit introduces a wrapped attribute to help record this
information, which could potentially help with when it comes
to looking at nicer resize behavior in refs: https://github.com/wez/wezterm/issues/14
Application cursor keys are a separate set of encodings that applications can
ask the terminal to produce for cursor keys.
Unfortunately, PuTTY generates these for shift-modified cursor keys. If an
application is to distinguish between normal and shift-modified cursor keys
on PuTTY then it will need to be able to distinguish between normal and
application cursor keys.
Add new `KeyCode` variants for application cursor keys.
A big paste could saturate the input/output of the pty and
lead to an effective deadlock; the application wants to send
output to us but we are busy trying to write the paste to it.
Break up large pastes into chunks and send them piece by piece.
This does mean that a large bracketed paste is not an atomic
unit any longer, but it seems to work out ok when pasting into
vim.
We were incorrectly treating it as \r\n, but it should only have
been moving vertically.
This fixes the positioning of the cursor when using eg:
`dialog --yesno hello 0 0`
Without this change, the cursor would be way over to the left.
With this change, the cursor is correctly positioned inside
the "YES" box.
In the case where the screen was enlarged, we don't eagerly resize
the line vectors.
If a subsequent erase display occurred, we'd only erase to the old
size of the lines, rather than the new size, which could result
in a black square in the upper right corner of the display.
Repro scenario is:
* resize window larger than initial height
* `dialog --yesno hello 0 0`
The dialog background should fill the display.
This was responsible for eg: dialog rendering a black (or whatever
the default background color was) strip behind the text in an
invocation like:
`dialog --yesno hello 0 0`
Rather than render a default cell, render a blank cell using the
current pen.
This was an off-by-one issue when using scroll margins just shorter
than the screen and when scrollback is enabled.
Added a unit test to verify the behavior.
I've had mixed results with esctest; the IRM and cursor save/restore
tests fail for me in terminal.app, iterm2 and xterm, and fail in the
same way on wezterm, so I'm not sure if I'm not running those tests
correctly. However, they did encourage the discovery of some other
real issues in the wezterm emulation.
These were showing up as unrecognized sequences on my mac, and I
wondered what they were. We now parse them and do nothing with
them, other than print out the parsed form :)
I wanted to see how much work remains to enable iterm2 image
display; one of the blockers was a limit in the size of the
buffer in the vte crate, which has been removed in my fork
of vte.
As part of testing our ability to absorb that data, I found
a couple of issues with applying the image cells to the display,
so this commit also takes care of that.
We still don't have code to connect the cell image data to the
opengl render layer.
