mirador/dist/es/src/state/actions/canvas.js

An open-source, web-based 'multi-up' viewer that supports zoom-pan-rotate functionality, ability to display/compare simple images, and images with annotations.

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

import ActionTypes from './action-types';
import { getNextCanvasGrouping, getPreviousCanvasGrouping, getCanvasGrouping } from '../selectors';
/**
 * setCanvas - action creator
 *
 * @param  {String} windowId
 * @param  {String} canvasId
 * @memberof ActionCreators
 */

export function setCanvas(windowId, canvasId) {
  var newGroup = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : undefined;
  var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
  return function (dispatch, getState) {
    var state = getState();
    var visibleCanvases = newGroup;

    if (!visibleCanvases) {
      var group = getCanvasGrouping(state, {
        canvasId: canvasId,
        windowId: windowId
      });
      visibleCanvases = (group || []).map(function (c) {
        return c.id;
      });
    }

    dispatch(_objectSpread(_objectSpread({}, options), {}, {
      canvasId: canvasId,
      type: ActionTypes.SET_CANVAS,
      visibleCanvases: visibleCanvases,
      windowId: windowId
    }));
  };
}
/** Set the window's canvas to the next canvas grouping */

export function setNextCanvas(windowId) {
  return function (dispatch, getState) {
    var state = getState();
    var newGroup = getNextCanvasGrouping(state, {
      windowId: windowId
    });
    var ids = (newGroup || []).map(function (c) {
      return c.id;
    });
    newGroup && dispatch(setCanvas(windowId, ids[0], ids));
  };
}
/** Set the window's canvas to the previous canvas grouping */

export function setPreviousCanvas(windowId) {
  return function (dispatch, getState) {
    var state = getState();
    var newGroup = getPreviousCanvasGrouping(state, {
      windowId: windowId
    });
    var ids = (newGroup || []).map(function (c) {
      return c.id;
    });
    newGroup && dispatch(setCanvas(windowId, ids[0], ids));
  };
}
/**
 *
 * @param windowId
 * @param payload
 * @returns {{payload: *, type: string, windowId: *}}
 */

export function updateViewport(windowId, payload) {
  return {
    payload: payload,
    type: ActionTypes.UPDATE_VIEWPORT,
    windowId: windowId
  };
}