core-graphics/lib/editor-state/reducer/cursor.js

A core library for creating shape-based graphic editors

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.default = cursorStateReducer;

var _declarations = require('../../declarations');

var _icepick = require('icepick');

var i = _interopRequireWildcard(_icepick);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function updateCursorState(state, cursor) {
    return i.assocIn(state, ['mouse', 'cursor'], cursor);
}
function cursorStateReducer(currentState, ev) {
    var mode = currentState.mode;

    if ((0, _declarations.isResizingMode)(mode)) {
        var cursor = mode.payload.handle.cursor;

        return updateCursorState(currentState, cursor);
    }
    if ((0, _declarations.isMovingMode)(mode)) {
        return updateCursorState(currentState, 'move');
    }
    if ((0, _declarations.isDrawingShapeMode)(mode)) {
        var shapesDeclarations = currentState.shapesDeclarations;
        var shapeType = mode.payload.shapeType;
        var drawingModeCursor = shapesDeclarations[shapeType].drawingModeCursor;

        return updateCursorState(currentState, drawingModeCursor);
    }
    if ((0, _declarations.isRubberBandSelectionMode)(mode)) {
        return updateCursorState(currentState, 'default');
    }
    if ((0, _declarations.isMovingViewportMode)(mode)) {
        return updateCursorState(currentState, mode.payload.moving ? 'move' : 'default');
    }
    return i.merge(currentState, { mouse: { cursor: null } });
}