@zodiac-ui/editor/esm2015/plugins/alignment/alignment.command.js

A rich text editor for Angular based on `@atlaskit/editor-core`.

import { toggleBlockMark } from "../../lib/commands/toggle-block-mark";
export const cascadeCommands = (cmds) => (state, dispatch) => {
    const { tr: baseTr } = state;
    let shouldDispatch = false;
    const onDispatchAction = tr => {
        tr.steps.forEach(st => {
            baseTr.step(st);
        });
        shouldDispatch = true;
    };
    cmds.forEach(cmd => {
        cmd(state, onDispatchAction);
    });
    if (dispatch && shouldDispatch) {
        dispatch(baseTr);
        return true;
    }
    return false;
};
export const isAlignable = (align) => (state, dispatch) => {
    const { nodes: { paragraph, heading }, marks: { alignment }, } = state.schema;
    return toggleBlockMark(alignment, () => (!align ? undefined : align === "start" ? false : { align }), [paragraph, heading])(state, dispatch);
};
export const changeAlignment = (align) => (state, dispatch) => {
    const { nodes: { paragraph, heading }, marks: { alignment }, } = state.schema;
    return cascadeCommands([
        changeImageAlignment(align),
        toggleBlockMark(alignment, () => {
            return (!align ? undefined : align === 'start' ? false : { align });
        }, [paragraph, heading]),
    ])(state, dispatch);
};
export const changeImageAlignment = (align) => (state, dispatch) => {
    const { from, to } = state.selection;
    const tr = state.tr;
    state.doc.nodesBetween(from, to, (node, pos, parent) => {
        if (node.type === state.schema.nodes.mediaSingle) {
            tr.setNodeMarkup(pos, undefined, Object.assign({}, node.attrs, { layout: align === 'center' ? 'center' : `align-${align}` }));
        }
    });
    if (tr.docChanged && dispatch) {
        dispatch(tr.scrollIntoView());
        return true;
    }
    return false;
};
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