5074034006

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Merge 7f6b0d199 into 8a49c03f6

Pull Request Pull Request #468: Export channels on submit/download

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58.06

/frontend/src/Project/service/raw/rawMachine.js

/** Manages the controls for the raw image, including
 * whether color is on and what channel to show in grayscale mode.
 *
 * Spawns layerMachines and channelMachines for controlling each channel in color and grayscale mode respectively.
 */

import { actions, assign, forwardTo, Machine, send, sendParent, spawn } from 'xstate';
import { fromEventBus } from '../eventBus';
import createChannelMachine from './channelMachine';
import createLayerMachine from './layerMachine';

const { pure, respond } = actions;

const createRawMachine = ({ projectId, eventBuses, undoRef }) =>
  Machine(
    {
      invoke: [
        { id: 'eventBus', src: fromEventBus('raw', () => eventBuses.raw) },
        { src: fromEventBus('raw', () => eventBuses.load, 'LOADED') },
        { src: fromEventBus('raw', () => eventBuses.load, 'DIMENSIONS') },
      ],
      context: {
        projectId,
        numChannels: 1,
        channel: 0,
        channels: [], // channel machines
        channelNames: ['channel 0'],
        layersOpen: [],
        layers: [],
        isGrayscale: true,
      },
      entry: [send('REGISTER_UI', { to: undoRef }), 'spawnLayers', 'spawnChannels'],
      initial: 'loading',
      states: {
        loading: {
          type: 'parallel',
          states: {
            getChannelNames: {
              initial: 'waiting',
              states: {
                waiting: {
                  on: {
                    LOADED: { actions: ['setChannelNames'], target: 'done' },
                  },
                },
                done: { type: 'final' },
              },
            },
            getDimensions: {
              initial: 'waiting',
              states: {
                waiting: {
                  on: {
                    DIMENSIONS: {
                      actions: ['setNumChannels', 'spawnLayers', 'spawnChannels'],
                      target: 'done',
                    },
                  },
                },
                done: { type: 'final' },
              },
            },
          },
          onDone: { actions: 'checkChannels', target: 'loaded' },
        },
        loaded: {
          initial: 'checkDisplay',
          states: {
            checkDisplay: {
              always: [{ cond: 'isGrayscale', target: 'grayscale' }, { target: 'color' }],
            },
            color: {
              entry: [send('COLOR', { to: 'eventBus' }), assign({ isGrayscale: false })],
              on: {
                TOGGLE_COLOR_MODE: 'grayscale',
                // Need propagate event to root actor to rerender canvas
                ADD_LAYER: {
                  actions: ['addLayer', sendParent((c, e) => e)],
                },
                FETCH_LAYERS: {
                  actions: ['fetchLayers', 'resetColors', 'setLayers', sendParent((c, e) => e)],
                },
                REMOVE_LAYER: {
                  actions: ['removeLayer', sendParent((c, e) => e), 'setLayers'],
                },
                EDIT_CHANNEL: {
                  actions: ['editLayer'],
                },
                EDIT_NAME: { actions: 'editChannelName' },
              },
            },
            grayscale: {
              entry: [send('GRAYSCALE', { to: 'eventBus' }), assign({ isGrayscale: true })],
              on: {
                TOGGLE_COLOR_MODE: 'color',
                RESET: { actions: 'forwardToChannel' },
                SET_CHANNEL: { actions: ['setChannel', 'sendToEventBus'] },
              },
            },
          },
          on: {
            GET_CHANNELS: { actions: 'sendChannels' },
            TOGGLE_INVERT: { actions: 'forwardToChannel' },
            SAVE: { actions: 'save' },
            RESTORE: { actions: ['restore', respond('RESTORED')] },
          },
        },
      },
    },
    {
      guards: {
        isGrayscale: ({ isGrayscale }) => isGrayscale,
      },
      actions: {
        setNumChannels: assign({
          numChannels: (context, event) => event.numChannels,
          isGrayscale: (context, event) => event.numChannels === 1,
        }),
        setChannelNames: assign({
          channelNames: (ctx, evt) => evt.channels,
        }),
        editChannelName: assign({
          channelNames: (ctx, evt) => {
            let channelNames = ctx.channelNames;
            channelNames[evt.channel] = evt.name;
            return channelNames;
          },
        }),
        editLayer: assign({
          layersOpen: ({ channelNames, layersOpen }, { channel, index }) => [
            ...layersOpen.map((c, i) => (i === index ? channelNames[channel] : c)),
          ],
        }),
        checkChannels: assign({
          channelNames: (ctx) => {
            let channelNames = ctx.channelNames;
            channelNames = channelNames.map((name, i) => (name ? name : `channel ${i}`));
            return channelNames;
          },
          layersOpen: ({ numChannels, channelNames }) => {
            const layers = [];
            for (let i = 0; i < Math.min(6, numChannels); i++) {
              layers.push(channelNames[i]);
            }
            return layers;
          },
        }),
        sendToEventBus: send((c, e) => e, { to: 'eventBus' }),
        setChannel: assign({ channel: (_, { channel }) => channel }),
        /** Creates a channel machines and names */
        spawnChannels: assign({
          channels: ({ numChannels }, event) => {
            const channels = [];
            for (let i = 0; i < numChannels; i++) {
              const channel = spawn(createChannelMachine(i), `channel${i}`);
              channels.push(channel);
            }
            return channels;
          },
        }),
        sendChannels: respond((ctx) => ({
          type: 'CHANNELS',
          channels: ctx.channelNames, // Send the channel names list for export
        })),
        forwardToChannel: forwardTo((ctx) => `channel${ctx.channel}`),
        spawnLayers: assign({
          layers: ({ numChannels }) => {
            const layers = [];
            for (let i = 0; i < Math.min(6, numChannels); i++) {
              const layer = spawn(createLayerMachine(i, numChannels), `layer ${i}`);
              layers.push(layer);
            }
            return layers;
          },
        }),
        addLayer: assign({
          layers: ({ layers, numChannels }) => [
            ...layers,
            spawn(createLayerMachine(layers.length, numChannels), `layer ${layers.length}`),
          ],
          layersOpen: ({ layersOpen, channelNames }) => [
            ...layersOpen,
            channelNames[layersOpen.length],
          ],
        }),
        fetchLayers: assign({
          layers: ({ numChannels }, evt) => {
            const layers = [];
            for (let i = 0; i < evt.channels.length; i++) {
              const layer = spawn(createLayerMachine(evt.channels[i], numChannels), `layer ${i}`);
              layers.push(layer);
            }
            return layers;
          },
          layersOpen: ({ channelNames }, evt) => {
            const layers = [];
            for (let i = 0; i < evt.channels.length; i++) {
              layers.push(channelNames[evt.channels[i]]);
            }
            return layers;
          },
        }),
        removeLayer: assign({
          layers: ({ layers }, { layer }) => [...layers.filter((val) => val !== layer)],
          layersOpen: ({ layersOpen }, { index }) => [...layersOpen.filter((_, i) => i !== index)],
        }),
        setLayers: pure((context) =>
          context.layers.map((layer, i) => send({ type: 'SET_LAYER', layer: i }, { to: layer }))
        ),
        resetColors: pure((context) =>
          context.layers.map((layer, i) => send({ type: 'RESET_COLORS', layer: i }, { to: layer }))
        ),
        save: respond(({ channel, isGrayscale }) => ({ type: 'RESTORE', isGrayscale, channel })),
        restore: pure((context, event) =>
          context.isGrayscale === event.isGrayscale
            ? [send({ type: 'SET_CHANNEL', channel: event.channel })]
            : [
                send({ type: 'SET_CHANNEL', channel: event.channel }),
                send({ type: 'TOGGLE_COLOR_MODE' }),
              ]
        ),
      },
    }
  );

export default createRawMachine;

1	/** Manages the controls for the raw image, including
2	* whether color is on and what channel to show in grayscale mode.
3	*
4	* Spawns layerMachines and channelMachines for controlling each channel in color and grayscale mode respectively.
5	*/
6
7	import { actions, assign, forwardTo, Machine, send, sendParent, spawn } from 'xstate';
8	import { fromEventBus } from '../eventBus';
9	import createChannelMachine from './channelMachine';
10	import createLayerMachine from './layerMachine';
11
12	const { pure, respond } = actions;	19✔
13
14	const createRawMachine = ({ projectId, eventBuses, undoRef }) =>	19✔
15	Machine(	866✔
16	{
17	invoke: [
18	{ id: 'eventBus', src: fromEventBus('raw', () => eventBuses.raw) },	18✔
19	{ src: fromEventBus('raw', () => eventBuses.load, 'LOADED') },	18✔
20	{ src: fromEventBus('raw', () => eventBuses.load, 'DIMENSIONS') },	18✔
21	],
22	context: {
23	projectId,
24	numChannels: 1,
25	channel: 0,
26	channels: [], // channel machines
27	channelNames: ['channel 0'],
28	layersOpen: [],
29	layers: [],
30	isGrayscale: true,
31	},
32	entry: [send('REGISTER_UI', { to: undoRef }), 'spawnLayers', 'spawnChannels'],
33	initial: 'loading',
34	states: {
35	loading: {
36	type: 'parallel',
37	states: {
38	getChannelNames: {
39	initial: 'waiting',
40	states: {
41	waiting: {
42	on: {
43	LOADED: { actions: ['setChannelNames'], target: 'done' },
44	},
45	},
46	done: { type: 'final' },
47	},
48	},
49	getDimensions: {
50	initial: 'waiting',
51	states: {
52	waiting: {
53	on: {
54	DIMENSIONS: {
55	actions: ['setNumChannels', 'spawnLayers', 'spawnChannels'],
56	target: 'done',
57	},
58	},
59	},
60	done: { type: 'final' },
61	},
62	},
63	},
64	onDone: { actions: 'checkChannels', target: 'loaded' },
65	},
66	loaded: {
67	initial: 'checkDisplay',
68	states: {
69	checkDisplay: {
70	always: [{ cond: 'isGrayscale', target: 'grayscale' }, { target: 'color' }],
71	},
72	color: {
73	entry: [send('COLOR', { to: 'eventBus' }), assign({ isGrayscale: false })],
74	on: {
75	TOGGLE_COLOR_MODE: 'grayscale',
76	// Need propagate event to root actor to rerender canvas
77	ADD_LAYER: {
78	actions: ['addLayer', sendParent((c, e) => e)],	×
79	},
80	FETCH_LAYERS: {
81	actions: ['fetchLayers', 'resetColors', 'setLayers', sendParent((c, e) => e)],	×
82	},
83	REMOVE_LAYER: {
84	actions: ['removeLayer', sendParent((c, e) => e), 'setLayers'],	1✔
85	},
86	EDIT_CHANNEL: {
87	actions: ['editLayer'],
88	},
89	EDIT_NAME: { actions: 'editChannelName' },
90	},
91	},
92	grayscale: {
93	entry: [send('GRAYSCALE', { to: 'eventBus' }), assign({ isGrayscale: true })],
94	on: {
95	TOGGLE_COLOR_MODE: 'color',
96	RESET: { actions: 'forwardToChannel' },
97	SET_CHANNEL: { actions: ['setChannel', 'sendToEventBus'] },
98	},
99	},
100	},
101	on: {
102	GET_CHANNELS: { actions: 'sendChannels' },
103	TOGGLE_INVERT: { actions: 'forwardToChannel' },
104	SAVE: { actions: 'save' },
105	RESTORE: { actions: ['restore', respond('RESTORED')] },
106	},
107	},
108	},
109	},
110	{
111	guards: {
112	isGrayscale: ({ isGrayscale }) => isGrayscale,	13✔
113	},
114	actions: {
115	setNumChannels: assign({
116	numChannels: (context, event) => event.numChannels,	13✔
117	isGrayscale: (context, event) => event.numChannels === 1,	13✔
118	}),
119	setChannelNames: assign({
120	channelNames: (ctx, evt) => evt.channels,	13✔
121	}),
122	editChannelName: assign({
123	channelNames: (ctx, evt) => {
124	let channelNames = ctx.channelNames;	1✔
125	channelNames[evt.channel] = evt.name;	1✔
126	return channelNames;	1✔
127	},
128	}),
129	editLayer: assign({
130	layersOpen: ({ channelNames, layersOpen }, { channel, index }) => [	×
131	...layersOpen.map((c, i) => (i === index ? channelNames[channel] : c)),	×
132	],
133	}),
134	checkChannels: assign({
135	channelNames: (ctx) => {
136	let channelNames = ctx.channelNames;	13✔
137	channelNames = channelNames.map((name, i) => (name ? name : `channel ${i}`));	34!
138	return channelNames;	13✔
139	},
140	layersOpen: ({ numChannels, channelNames }) => {
141	const layers = [];	13✔
142	for (let i = 0; i < Math.min(6, numChannels); i++) {	13✔
143	layers.push(channelNames[i]);	34✔
144	}
145	return layers;	13✔
146	},
147	}),
148	sendToEventBus: send((c, e) => e, { to: 'eventBus' }),	×
149	setChannel: assign({ channel: (_, { channel }) => channel }),	×
150	/** Creates a channel machines and names */
151	spawnChannels: assign({
152	channels: ({ numChannels }, event) => {
153	const channels = [];	879✔
154	for (let i = 0; i < numChannels; i++) {	879✔
155	const channel = spawn(createChannelMachine(i), `channel${i}`);	900✔
156	channels.push(channel);	900✔
157	}
158	return channels;	879✔
159	},
160	}),
NEW 161	sendChannels: respond((ctx) => ({	×
162	type: 'CHANNELS',
163	channels: ctx.channelNames, // Send the channel names list for export
164	})),
UNCOV 165	forwardToChannel: forwardTo((ctx) => `channel${ctx.channel}`),	×
166	spawnLayers: assign({
167	layers: ({ numChannels }) => {
168	const layers = [];	879✔
169	for (let i = 0; i < Math.min(6, numChannels); i++) {	879✔
170	const layer = spawn(createLayerMachine(i, numChannels), `layer ${i}`);	900✔
171	layers.push(layer);	900✔
172	}
173	return layers;	879✔
174	},
175	}),
176	addLayer: assign({
177	layers: ({ layers, numChannels }) => [	×
178	...layers,
179	spawn(createLayerMachine(layers.length, numChannels), `layer ${layers.length}`),
180	],
181	layersOpen: ({ layersOpen, channelNames }) => [	×
182	...layersOpen,
183	channelNames[layersOpen.length],
184	],
185	}),
186	fetchLayers: assign({
187	layers: ({ numChannels }, evt) => {
188	const layers = [];	×
189	for (let i = 0; i < evt.channels.length; i++) {	×
190	const layer = spawn(createLayerMachine(evt.channels[i], numChannels), `layer ${i}`);	×
191	layers.push(layer);	×
192	}
193	return layers;	×
194	},
195	layersOpen: ({ channelNames }, evt) => {
196	const layers = [];	×
197	for (let i = 0; i < evt.channels.length; i++) {	×
198	layers.push(channelNames[evt.channels[i]]);	×
199	}
200	return layers;	×
201	},
202	}),
203	removeLayer: assign({
204	layers: ({ layers }, { layer }) => [...layers.filter((val) => val !== layer)],	3✔
205	layersOpen: ({ layersOpen }, { index }) => [...layersOpen.filter((_, i) => i !== index)],	3✔
206	}),
207	setLayers: pure((context) =>
208	context.layers.map((layer, i) => send({ type: 'SET_LAYER', layer: i }, { to: layer }))	2✔
209	),
210	resetColors: pure((context) =>
211	context.layers.map((layer, i) => send({ type: 'RESET_COLORS', layer: i }, { to: layer }))	×
212	),
213	save: respond(({ channel, isGrayscale }) => ({ type: 'RESTORE', isGrayscale, channel })),	12✔
214	restore: pure((context, event) =>
215	context.isGrayscale === event.isGrayscale	×
216	? [send({ type: 'SET_CHANNEL', channel: event.channel })]
217	: [
218	send({ type: 'SET_CHANNEL', channel: event.channel }),
219	send({ type: 'TOGGLE_COLOR_MODE' }),
220	]
221	),
222	},
223	}
224	);
225
226	export default createRawMachine;

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