getDOMSelection getDOMSelection.ts

100% Statements 12/12

89.47% Branches 17/19

100% Functions 2/2

100% Lines 11/11

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  import type { DOMSelection, GetDOMSelection, EditorCore } from 'roosterjs-content-model-types';
 
/**
 * @internal
 */
export const getDOMSelection: GetDOMSelection = core => {
    if (core.lifecycle.shadowEditFragment) {
        return null;
    } else {
        const selection = core.selection.selection;
 
        return selection && (selection.type != 'range' || !core.domHelper.hasFocus())
            ? selection
            : getNewSelection(core);
    }
};
 
function getNewSelection(core: EditorCore): DOMSelection | null {
    const range = core.domHelper.getSelectionRange();
 
    if (!range || !core.logicalRoot.contains(range.commonAncestorContainer)) {
        return null;
    }
 
    const selection = core.logicalRoot.ownerDocument.defaultView?.getSelection();
    const isReverted = selection
        ? selection.focusNode != range.endContainer || selection.focusOffset != range.endOffset
        : false;
 
    return {
        type: 'range',
        range,
        isReverted,
    };
}