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zeekayandHanzo Dev c585b5b614 term: fork the client — our terminal, our page (1.9.37)
ttyd's page is a fine terminal and the wrong surface for this product. It cannot
be themed to match the console that frames it, it has no touch affordances, and —
being somebody else's document inside a cross-origin frame — it swallows every
keystroke the workspace would like to hear. Three problems, one cause: we did not
own the page. Now we do. ttyd itself is untouched; only `--index` changes.

WHAT THE PAGE IS. xterm.js and the fit addon, vendored and INLINED, plus ~180
lines of client. Inlined because ttyd serves exactly one document and no assets,
so `src="./xterm.js"` would ask it for a file it does not have and render
nothing — and because a terminal must not need a CDN to be up. Tests assert both:
no relative asset, no remote fetch, and every placeholder substituted.

THEMED. True black, because the terminal is the deepest surface in the product;
monochrome foreground with the app's status hues; a bar cursor, 10k lines of
scrollback, and a scrollbar that matches the console rather than the OS.

THE KEY ROW. A soft keyboard has no Esc, no Ctrl, no Tab and no arrows, so on a
phone a terminal without one is a terminal you can read and not use. Fourteen
keys, docked above the software keyboard via visualViewport, with a STICKY ctrl —
tap it, then tap a letter — which is the only way to reach ^C on a touch device
and how Blink and Termius both do it. Rendered only where `pointer: coarse`.

THE CHORD BRIDGE. The workspace's shortcuts cannot exist unless this page
forwards them, so it forwards `⌃⌥` and NOTHING else: Ctrl belongs to the shell,
Alt is readline's Meta, ⌘ is the browser's, and a workspace that takes one of
those breaks the terminal it contains. AltGr reports as ctrl+alt on European
layouts and is excluded explicitly, or AltGr+E (€) would read as a chord.

PROVEN IN A REAL BROWSER, not asserted. Chromium at 1200x800 and as an iPhone 14:
43 rows and 33 rows, black ground, zero console errors, the key row present on
touch and absent on desktop — and a round trip, typing a command and reading its
output back out of the terminal. Both pages ran DIFFERENT shells from one server
(`?arg=desktop`, `?arg=phone`), which is the one-link-many-shells claim
demonstrated rather than described.

Best-effort by design: a page we cannot write is a reason to serve ttyd's own,
never a reason to have no terminal.

Co-authored-by: Hanzo Dev <[email protected]>
2026-08-03 22:42:47 -07:00

219 lines
5.4 KiB
CSS

/**
* Copyright (c) 2014 The xterm.js authors. All rights reserved.
* Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
* https://github.com/chjj/term.js
* @license MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* Originally forked from (with the author's permission):
* Fabrice Bellard's javascript vt100 for jslinux:
* http://bellard.org/jslinux/
* Copyright (c) 2011 Fabrice Bellard
* The original design remains. The terminal itself
* has been extended to include xterm CSI codes, among
* other features.
*/
/**
* Default styles for xterm.js
*/
.xterm {
cursor: text;
position: relative;
user-select: none;
-ms-user-select: none;
-webkit-user-select: none;
}
.xterm.focus,
.xterm:focus {
outline: none;
}
.xterm .xterm-helpers {
position: absolute;
top: 0;
/**
* The z-index of the helpers must be higher than the canvases in order for
* IMEs to appear on top.
*/
z-index: 5;
}
.xterm .xterm-helper-textarea {
padding: 0;
border: 0;
margin: 0;
/* Move textarea out of the screen to the far left, so that the cursor is not visible */
position: absolute;
opacity: 0;
left: -9999em;
top: 0;
width: 0;
height: 0;
z-index: -5;
/** Prevent wrapping so the IME appears against the textarea at the correct position */
white-space: nowrap;
overflow: hidden;
resize: none;
}
.xterm .composition-view {
/* TODO: Composition position got messed up somewhere */
background: #000;
color: #FFF;
display: none;
position: absolute;
white-space: nowrap;
z-index: 1;
}
.xterm .composition-view.active {
display: block;
}
.xterm .xterm-viewport {
/* On OS X this is required in order for the scroll bar to appear fully opaque */
background-color: #000;
overflow-y: scroll;
cursor: default;
position: absolute;
right: 0;
left: 0;
top: 0;
bottom: 0;
}
.xterm .xterm-screen {
position: relative;
}
.xterm .xterm-screen canvas {
position: absolute;
left: 0;
top: 0;
}
.xterm .xterm-scroll-area {
visibility: hidden;
}
.xterm-char-measure-element {
display: inline-block;
visibility: hidden;
position: absolute;
top: 0;
left: -9999em;
line-height: normal;
}
.xterm.enable-mouse-events {
/* When mouse events are enabled (eg. tmux), revert to the standard pointer cursor */
cursor: default;
}
.xterm.xterm-cursor-pointer,
.xterm .xterm-cursor-pointer {
cursor: pointer;
}
.xterm.column-select.focus {
/* Column selection mode */
cursor: crosshair;
}
.xterm .xterm-accessibility:not(.debug),
.xterm .xterm-message {
position: absolute;
left: 0;
top: 0;
bottom: 0;
right: 0;
z-index: 10;
color: transparent;
pointer-events: none;
}
.xterm .xterm-accessibility-tree:not(.debug) *::selection {
color: transparent;
}
.xterm .xterm-accessibility-tree {
user-select: text;
white-space: pre;
}
.xterm .live-region {
position: absolute;
left: -9999px;
width: 1px;
height: 1px;
overflow: hidden;
}
.xterm-dim {
/* Dim should not apply to background, so the opacity of the foreground color is applied
* explicitly in the generated class and reset to 1 here */
opacity: 1 !important;
}
.xterm-underline-1 { text-decoration: underline; }
.xterm-underline-2 { text-decoration: double underline; }
.xterm-underline-3 { text-decoration: wavy underline; }
.xterm-underline-4 { text-decoration: dotted underline; }
.xterm-underline-5 { text-decoration: dashed underline; }
.xterm-overline {
text-decoration: overline;
}
.xterm-overline.xterm-underline-1 { text-decoration: overline underline; }
.xterm-overline.xterm-underline-2 { text-decoration: overline double underline; }
.xterm-overline.xterm-underline-3 { text-decoration: overline wavy underline; }
.xterm-overline.xterm-underline-4 { text-decoration: overline dotted underline; }
.xterm-overline.xterm-underline-5 { text-decoration: overline dashed underline; }
.xterm-strikethrough {
text-decoration: line-through;
}
.xterm-screen .xterm-decoration-container .xterm-decoration {
z-index: 6;
position: absolute;
}
.xterm-screen .xterm-decoration-container .xterm-decoration.xterm-decoration-top-layer {
z-index: 7;
}
.xterm-decoration-overview-ruler {
z-index: 8;
position: absolute;
top: 0;
right: 0;
pointer-events: none;
}
.xterm-decoration-top {
z-index: 2;
position: relative;
}