Function notebook

src/js/reducers/notebookReducer.js:39–157

(state = initialState, action)

});

export default function notebook(state = initialState, action) {
    const { id, text, field, blockType } = action;
    const content = state.get('content');
    let newState;
    switch (action.type) {
        case LOAD_MARKDOWN:
            return parse(action.markdown).mergeDeep(state);
        case UPDATE_BLOCK:
            return handleChange(
                state, state.setIn(['blocks', id, 'content'], text)
            );
        case UPDATE_META:
            return handleChange(
                state, state.setIn(['metadata', field], text)
            );
        case TOGGLE_META:
            return handleChange(
                state, state.setIn(['metadata', field], !state.getIn(['metadata', field]))
            );
        case ADD_BLOCK:
            const newId = getNewId(content);
            let newBlock = {type: blockType, id: newId};
            if (blockType === 'code') {
                newBlock.content = '// New code block';
                newBlock.language = 'javascript';
                newBlock.option = 'runnable';
            } else if (blockType === 'graph') {
                newBlock.language = 'javascript';
                newBlock.option = 'runnable';
                newBlock.content = 'return graphs.pieChart(data);';
                newBlock.graphType = 'pieChart';
                newBlock.dataPath = 'data';
                newBlock.hints = Immutable.fromJS({
                    label: '',
                    value: '',
                    x: '',
                    y: ''
                });
                newBlock.labels = Immutable.fromJS({
                    x: '',
                    y: ''
                });
            } else {
                newBlock.content = 'New text block';
            }
            newState = handleChange(
                state, state.setIn(['blocks', newId], Immutable.fromJS(newBlock))
            );
            if (id === undefined) {
                return newState.set('content', content.push(newId));
            }
            return newState.set('content', content.insert(content.indexOf(id), newId));
        case DELETE_BLOCK:
            return handleChange(
                state,
                state.deleteIn(['blocks', id]).set(
                    'content', content.delete(content.indexOf(id))
                )