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silverbullet/web/cm_plugins/block.ts
2022-11-29 08:35:46 +01:00

87 lines
2.1 KiB
TypeScript

import {
Decoration,
DecorationSet,
EditorView,
ViewPlugin,
ViewUpdate,
} from "../deps.ts";
import {
invisibleDecoration,
isCursorInRange,
iterateTreeInVisibleRanges,
} from "./util.ts";
function hideNodes(view: EditorView) {
const widgets: any[] = [];
iterateTreeInVisibleRanges(view, {
enter(node) {
if (
node.name === "HorizontalRule" &&
!isCursorInRange(view.state, [node.from, node.to])
) {
widgets.push(invisibleDecoration.range(node.from, node.to));
widgets.push(
Decoration.line({
class: "sb-line-hr",
}).range(node.from),
);
}
if (
node.name === "Image" &&
!isCursorInRange(view.state, [node.from, node.to])
) {
widgets.push(invisibleDecoration.range(node.from, node.to));
}
if (
node.name === "FrontMatterMarker"
) {
const parent = node.node.parent!;
if (!isCursorInRange(view.state, [parent.from, parent.to])) {
widgets.push(
Decoration.line({
class: "sb-line-frontmatter-outside",
}).range(node.from),
);
}
}
if (
node.name === "CodeMark"
) {
const parent = node.node.parent!;
// Hide ONLY if CodeMark is not insine backticks (InlineCode) and the cursor is placed outside
if (
parent.node.name !== "InlineCode" &&
!isCursorInRange(view.state, [parent.from, parent.to])
) {
widgets.push(
Decoration.line({
class: "sb-line-code-outside",
}).range(node.from),
);
}
}
},
});
return Decoration.set(widgets, true);
}
export const cleanBlockPlugin = ViewPlugin.fromClass(
class {
decorations: DecorationSet;
constructor(view: EditorView) {
this.decorations = hideNodes(view);
}
update(update: ViewUpdate) {
if (update.docChanged || update.selectionSet) {
this.decorations = hideNodes(update.view);
}
}
},
{ decorations: (v) => v.decorations },
);