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l0ng-ai
c6621c5c36
Column-based editing computed columns with countColumn / findColumn, which count every grapheme as one column, and up/down and Clone Caret moved by pixel x, so block selections and cloned carets drifted on lines with CJK, fullwidth punctuation, Hangul, kana or emoji. A shared visible-column helper (UI side only, UTF-16 offsets in and out) now counts East Asian wide/fullwidth characters and emoji (ZWJ sequences, modifiers, flags, VS16) as 2, combining marks and format characters as 0, and expands tabs to the next tab stop. It drives Alt+drag block selection, drag and Shift+arrows in Column Selection Mode, middle-drag block selection (new; not on Linux, where middle-click pastes the primary selection), the up/down goal column (kept across short lines; soft-wrapped and folded lines still move visually), Clone Caret Above/Below, the caret move after Comment Line, Tab padding to the next indent stop, and macro playback of arrow keys. Claude-Session: https://claude.ai/code/session_01Dq6jQQn8ZhRfkkyj3PRutA
55 lines
1.9 KiB
TypeScript
55 lines
1.9 KiB
TypeScript
/**
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* CodeMirror's default keymap minus the bindings that clash with IntelliJ IDEA.
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* Those keys belong to IDE actions instead (keymaps in `platform/keymaps/`):
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* ⌘/Ctrl+Enter is Split Line, Ctrl+M / ⌃L Scroll to Center, Ctrl+[ / ] code
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* block navigation, ⌥⌘↑↓ / Ctrl+Alt+↑↓ Previous / Next Occurrence.
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* Line up / down (with ⇧ too) keep the caret's visible column (`verticalMotion`).
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*/
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import type { Command, KeyBinding } from "@codemirror/view";
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import {
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addCursorAbove,
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addCursorBelow,
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cursorLineDown as cmCursorLineDown,
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cursorLineUp as cmCursorLineUp,
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defaultKeymap,
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historyKeymap,
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indentLess,
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indentMore,
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insertBlankLine,
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redo,
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selectLine,
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selectLineDown as cmSelectLineDown,
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selectLineUp as cmSelectLineUp,
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toggleTabFocusMode,
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} from "@codemirror/commands";
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import { cursorLineDown, cursorLineUp, selectLineDown, selectLineUp } from "./verticalMotion";
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const DROPPED = new Set<unknown>([
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insertBlankLine, // Mod-Enter
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toggleTabFocusMode, // Ctrl-m / Shift-Alt-m
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selectLine, // Alt-l / Ctrl-l
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addCursorAbove, // Mod-Alt-ArrowUp
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addCursorBelow, // Mod-Alt-ArrowDown
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indentLess, // Mod-[
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indentMore, // Mod-]
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]);
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const VERTICAL = new Map<Command | undefined, Command>([
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[cmCursorLineUp, cursorLineUp],
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[cmCursorLineDown, cursorLineDown],
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[cmSelectLineUp, selectLineUp],
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[cmSelectLineDown, selectLineDown],
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]);
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const vertical = (b: KeyBinding): KeyBinding =>
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VERTICAL.has(b.run) || VERTICAL.has(b.shift)
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? { ...b, run: VERTICAL.get(b.run) ?? b.run, shift: VERTICAL.get(b.shift) ?? b.shift }
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: b;
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export const editorBaseKeymap: readonly KeyBinding[] = [
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...defaultKeymap.filter((b) => !DROPPED.has(b.run)).map(vertical),
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...historyKeymap,
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// IDEA's Windows Redo is Ctrl+Shift+Z (Ctrl+Y is Delete Line); CodeMirror only binds it on macOS and Linux.
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{ win: "Ctrl-Shift-z", run: redo, preventDefault: true },
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];
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