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don't persist caret when selection is missing

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so caret will be put back at end of editor when remounting
This commit is contained in:
Bruno Windels 2019-10-10 16:40:03 +02:00
parent 905aa81bf8
commit f8a610687f
1 changed files with 11 additions and 2 deletions
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13
src/components/views/rooms/EditMessageComposer.js
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@ -210,9 +210,18 @@ export default class EditMessageComposer extends React.Component {
}
componentWillUnmount() {
// store caret and serialized parts in the
// editorstate so it can be restored when the remote echo event tile gets rendered
// in case we're currently editing a pending event
const sel = document.getSelection();
const {caret} = getCaretOffsetAndText(this._editorRef, sel);
let caret;
if (sel.focusNode) {
caret = getCaretOffsetAndText(this._editorRef, sel).caret;
}
const parts = this.model.serializeParts();
// if caret is undefined because for some reason there isn't a valid selection,
// then when mounting the editor again with the same editor state,
// it will set the cursor at the end.
this.props.editState.setEditorState(caret, parts);
}
@ -239,7 +248,7 @@ export default class EditMessageComposer extends React.Component {
_getInitialCaretPosition() {
const {editState} = this.props;
let caretPosition;
if (editState.hasEditorState()) {
if (editState.hasEditorState() && editState.getCaret()) {
// if restoring state from a previous editor,
// restore caret position from the state
const caret = editState.getCaret();