Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

fix(codeeditor): ensure selections are inside of the document length #452

Merged
merged 1 commit into from
Apr 27, 2022
Merged

fix(codeeditor): ensure selections are inside of the document length #452

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
16 changes: 11 additions & 5 deletions sandpack-react/src/components/CodeEditor/CodeMirror.tsx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ import { lineNumbers } from "@codemirror/gutter";
import { defaultHighlightStyle } from "@codemirror/highlight";
import { history, historyKeymap } from "@codemirror/history";
import { bracketMatching } from "@codemirror/matchbrackets";
import { EditorState } from "@codemirror/state";
import { EditorState, EditorSelection } from "@codemirror/state";
import type { Annotation, Extension } from "@codemirror/state";
import {
highlightSpecialChars,
Expand Down Expand Up @@ -311,10 +311,16 @@ export const CodeMirror = React.forwardRef<CodeMirrorRef, CodeMirrorProps>(
React.useEffect(() => {
if (cmView.current && code !== internalCode) {
const view = cmView.current;
view.dispatch({
changes: { from: 0, to: view.state.doc.length, insert: code },
selection: view.state.selection,
});

const selection = view.state.selection.ranges.some(
({ to, from }) => to > code.length || from > code.length
)
? EditorSelection.cursor(code.length)
: view.state.selection;

const changes = { from: 0, to: view.state.doc.length, insert: code };

view.dispatch({ changes, selection });
}
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [code]);
Expand Down
7 changes: 5 additions & 2 deletions website/docs/docs/advanced-usage/components.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -262,6 +262,8 @@ import { autocompletion, completionKeymap } from "@codemirror/autocomplete";
If you want to interact directly with CodeMirror, use the component ref to access the `getCodemirror` function, which will return the CodeMirror instance. Check out how to use it:

```jsx
import { EditorSelection } from "@codemirror/state";

const App = () => {
const codemirrorInstance = useRef();

Expand All @@ -272,17 +274,18 @@ const App = () => {
if(!cmInstance) return

// Current position
const currentPosition = cmInstance.state.selection;
const currentPosition = cmInstance.state.selection.ranges[0].to;

// Setting a new position
const trans = cmInstance.state.update({
selection: currentPosition + 1,
selection: EditorSelection.cursor(currentPosition + 1),
changes: {
from: 0,
to: cmInstance.state.doc.length,
insert: code
}
});

cmInstance.update([trans]);
}, []);

Expand Down