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cfd1b81dc7
Support Kitty and SIXEL input and output with grid-resident image layers, history and copy-mode integration, text fallback rendering, and damage-rectangle redraws. Consolidate the image work through 250f96b4b onto the redraw-damage-rectangles-new base, excluding the superseded redraw implementation and its historical merges. The original history is preserved in backup/4902-image-support-before-master-rebase-20261003.
88 lines
2.7 KiB
Bash
88 lines
2.7 KiB
Bash
#!/bin/sh
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# When the client's terminal has the imagescroll feature, tmux trusts it to
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# have moved everything in the scrolled region - text and image alike - so
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# a scroll must not cause any existing text to be redrawn. It used to skip
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# only the image phases of the damage redraw and still redraw all of the
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# text around them.
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#
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# Without imagescroll the images must be redrawn, and the text around them
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# is redrawn too, so the same scroll must resend it.
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#
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# The feature only takes effect for a client attached after it is set, so
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# each case starts a new server and client.
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PATH=/bin:/usr/bin
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TERM=screen
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LC_ALL=C.UTF-8
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export TERM LC_ALL
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[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
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TMUX="$TEST_TMUX -LtestA$$ -f/dev/null"
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TMUX2="$TEST_TMUX -LtestB$$ -f/dev/null"
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cleanup()
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{
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$TMUX kill-server >/dev/null 2>&1
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$TMUX2 kill-server >/dev/null 2>&1
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}
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fail()
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{
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echo "$*" >&2
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cleanup
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exit 1
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}
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TMP=$(mktemp)
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trap "cleanup; rm -f $TMP" 0 1 15
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HEADER=$(printf '\033_Ga=T,q=2,f=32,s=1,v=1,i=424243;/wAA/w==\033\\')
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# Scroll a pane containing an image and marker text on a client with the
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# given terminal features, and set N to the number of marker lines sent to
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# the terminal.
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scroll_markers()
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{
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cleanup
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# Marker text around an image, filling the pane so that the next
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# newlines scroll it while the image stays in view.
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$TMUX new-session -d -s inner -x 40 -y 20 \
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"i=0; while [ \$i -lt 5 ]; do printf 'MARKER%02d\n' \$i; i=\$((i + 1)); done; printf '$HEADER'; while [ \$i -lt 17 ]; do printf 'MARKER%02d\n' \$i; i=\$((i + 1)); done; exec sh" ||
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exit 1
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sleep 0.3
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[ "$($TMUX display-message -p '#{image_support}')" = 0 ] && exit 0
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$TMUX set -as terminal-features "$1" || exit 1
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$TMUX2 new-session -d -x 40 -y 20 || exit 1
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OUTER=$($TMUX2 list-panes -F '#{pane_id}' | head -1)
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[ -n "$OUTER" ] || fail "No outer pane."
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$TMUX2 set -as terminal-features ',*:kitty@' ||
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fail "disable outer kitty failed"
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: >"$TMP"
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$TMUX2 pipe-pane -t "$OUTER" -O "cat >$TMP" || fail "pipe-pane failed"
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$TMUX2 send-keys -t "$OUTER" -l "$TMUX attach -t inner" ||
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fail "send attach failed"
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$TMUX2 send-keys -t "$OUTER" Enter || fail "send enter failed"
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sleep 2
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grep -qa "$(printf '\033_Ga=p')" "$TMP" ||
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fail "sanity: image never reached the client"
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: >"$TMP"
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$TMUX send-keys -t inner -l "printf '\n\n\n'" ||
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fail "send scroll failed"
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$TMUX send-keys -t inner Enter || fail "send enter failed"
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sleep 1
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N=$(grep -ac MARKER "$TMP")
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}
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scroll_markers ',*:kitty,*:imagescroll'
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[ "$N" -eq 0 ] ||
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fail "existing text was redrawn ($N lines) scrolling with imagescroll"
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scroll_markers ',*:kitty'
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[ "$N" -gt 0 ] ||
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fail "text was not redrawn scrolling without imagescroll"
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exit 0
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