Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | 1x 1x 1x 1x 1x 1x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x | import { ChangeSource } from 'roosterjs-content-model-dom';
import { restoreSnapshotColors } from './restoreSnapshotColors';
import { restoreSnapshotHTML } from './restoreSnapshotHTML';
import { restoreSnapshotLogicalRoot } from './restoreSnapshotLogicalRoot';
import { restoreSnapshotSelection } from './restoreSnapshotSelection';
import type { ContentChangedEvent, RestoreUndoSnapshot } from 'roosterjs-content-model-types';
/**
* @internal
* Restore an undo snapshot into editor
* @param core The editor core object
* @param step Steps to move, can be 0, positive or negative
*/
export const restoreUndoSnapshot: RestoreUndoSnapshot = (core, snapshot) => {
core.api.triggerEvent(
core,
{
eventType: 'beforeSetContent',
newContent: snapshot.html,
},
true /*broadcast*/
);
try {
core.undo.isRestoring = true;
// Force clear logical root before restoring snapshot, so the whole editor is editable.
// Without changing logical root, browser may want to maintain the scroll position of current logical root,
// which may cause the editor to scroll to a wrong position after content is changed.
core.api.setLogicalRoot(core, null /* logicalRoot */);
restoreSnapshotHTML(core, snapshot);
restoreSnapshotLogicalRoot(core, snapshot);
restoreSnapshotSelection(core, snapshot);
restoreSnapshotColors(core, snapshot);
const event: ContentChangedEvent = {
eventType: 'contentChanged',
additionalState: snapshot.additionalState,
entityStates: snapshot.entityStates,
source: ChangeSource.SetContent,
};
core.api.triggerEvent(core, event, false /*broadcast*/);
} finally {
core.undo.isRestoring = false;
}
};
|