basic MIDI Input Audio Tracks

frontend/package-lock.json

@@ -25,6 +25,7 @@
         "react-beautiful-dnd": "^13.1.1",
         "react-chartjs-2": "^5.2.0",
         "react-dom": "^18.2.0",
+        "react-draggable": "^4.4.6",
         "react-i18next": "^12.2.2",
         "react-markdown": "^8.0.7",
         "react-router": "^6.11.1",
@@ -5410,6 +5411,19 @@
         "loose-envify": "^1.1.0"
       }
     },
+    "node_modules/react-draggable": {
+      "version": "4.4.6",
+      "resolved": "https://registry.npmjs.org/react-draggable/-/react-draggable-4.4.6.tgz",
+      "integrity": "sha512-LtY5Xw1zTPqHkVmtM3X8MUOxNDOUhv/khTgBgrUvwaS064bwVvxT+q5El0uUFNx5IEPKXuRejr7UqLwBIg5pdw==",
+      "dependencies": {
+        "clsx": "^1.1.1",
+        "prop-types": "^15.8.1"
+      },
+      "peerDependencies": {
+        "react": ">= 16.3.0",
+        "react-dom": ">= 16.3.0"
+      }
+    },
     "node_modules/react-i18next": {
       "version": "12.2.2",
       "resolved": "https://registry.npmmirror.com/react-i18next/-/react-i18next-12.2.2.tgz",

frontend/package.json

@@ -26,6 +26,7 @@
     "react-beautiful-dnd": "^13.1.1",
     "react-chartjs-2": "^5.2.0",
     "react-dom": "^18.2.0",
+    "react-draggable": "^4.4.6",
     "react-i18next": "^12.2.2",
     "react-markdown": "^8.0.7",
     "react-router": "^6.11.1",

frontend/src/pages/AudiotrackManager/AudiotrackButton.tsx

@@ -0,0 +1,31 @@
+import React, { FC, lazy } from 'react';
+import { useTranslation } from 'react-i18next';
+import { Button, Dialog, DialogBody, DialogContent, DialogSurface, DialogTrigger } from '@fluentui/react-components';
+import { CustomToastContainer } from '../../components/CustomToastContainer';
+import { LazyImportComponent } from '../../components/LazyImportComponent';
+
+const AudiotrackEditor = lazy(() => import('./AudiotrackEditor'));
+
+export const AudiotrackButton: FC<{
+  size?: 'small' | 'medium' | 'large',
+  shape?: 'rounded' | 'circular' | 'square';
+  appearance?: 'secondary' | 'primary' | 'outline' | 'subtle' | 'transparent';
+}> = ({ size, shape, appearance }) => {
+  const { t } = useTranslation();
+
+  return <Dialog>
+    <DialogTrigger disableButtonEnhancement>
+      <Button size={size} shape={shape} appearance={appearance}>
+        {t('Open MIDI Input Audio Tracks')}
+      </Button>
+    </DialogTrigger>
+    <DialogSurface style={{ paddingTop: 0, maxWidth: '90vw', width: 'fit-content' }}>
+      <DialogBody>
+        <DialogContent className="overflow-hidden">
+          <CustomToastContainer />
+          <LazyImportComponent lazyChildren={AudiotrackEditor} />
+        </DialogContent>
+      </DialogBody>
+    </DialogSurface>
+  </Dialog>;
+};

frontend/src/pages/AudiotrackManager/AudiotrackEditor.tsx

@@ -0,0 +1,273 @@
+import React, { FC, useEffect, useRef, useState } from 'react';
+import { observer } from 'mobx-react-lite';
+import { useTranslation } from 'react-i18next';
+import Draggable from 'react-draggable';
+import { ToolTipButton } from '../../components/ToolTipButton';
+import { v4 as uuid } from 'uuid';
+import {
+  Add16Regular,
+  ArrowAutofitWidth20Regular,
+  Delete16Regular,
+  MusicNote220Regular,
+  Play16Regular,
+  Record16Regular
+} from '@fluentui/react-icons';
+import { Button, Card, Slider, Text, Tooltip } from '@fluentui/react-components';
+import { useWindowSize } from 'usehooks-ts';
+import commonStore from '../../stores/commonStore';
+import classnames from 'classnames';
+
+const snapValue = 25;
+const minimalMoveTime = 8; // 1000/125=8ms
+const scaleMin = 0.2;
+const scaleMax = 3;
+const baseMoveTime = Math.round(minimalMoveTime / scaleMin);
+
+type TrackProps = {
+  id: string;
+  right: number;
+  scale: number;
+  isSelected: boolean;
+  onSelect: (id: string) => void;
+};
+
+const Track: React.FC<TrackProps> = observer(({
+  id,
+  right,
+  scale,
+  isSelected,
+  onSelect
+}) => {
+  const { t } = useTranslation();
+  const trackIndex = commonStore.tracks.findIndex(t => t.id === id)!;
+  const track = commonStore.tracks[trackIndex];
+  const trackClass = isSelected ? 'bg-blue-600' : 'bg-gray-700';
+  const controlX = useRef(0);
+
+  return (
+    <Draggable
+      axis="x"
+      bounds={{ left: 0, right }}
+      grid={[snapValue, snapValue]}
+      position={{
+        x: (track.offsetTime - commonStore.trackCurrentTime) / (baseMoveTime * scale) * snapValue,
+        y: 0
+      }}
+      onStart={(e, data) => {
+        controlX.current = data.lastX;
+      }}
+      onStop={(e, data) => {
+        const delta = data.lastX - controlX.current;
+        let offsetTime = Math.round(Math.round(delta / snapValue * baseMoveTime * scale) / minimalMoveTime) * minimalMoveTime;
+        offsetTime = Math.min(Math.max(
+          offsetTime,
+          -track.offsetTime), commonStore.trackTotalTime - track.offsetTime);
+
+        const tracks = commonStore.tracks.slice();
+        tracks[trackIndex].offsetTime += offsetTime;
+        commonStore.setTracks(tracks);
+      }}
+    >
+      <div
+        className={`p-1 cursor-move rounded whitespace-nowrap overflow-hidden ${trackClass}`}
+        style={{
+          width: `${Math.max(80,
+            track.contentTime / (baseMoveTime * scale) * snapValue
+          )}px`
+        }}
+        onClick={() => onSelect(id)}
+      >
+        <span className="text-white">{t('Track') + ' ' + id}</span>
+      </div>
+    </Draggable>
+  );
+});
+
+const AudiotrackEditor: FC = observer(() => {
+  const { t } = useTranslation();
+
+  const currentTimeControlRef = useRef<HTMLDivElement>(null);
+  const playStartTimeControlRef = useRef<HTMLDivElement>(null);
+  const tracksRef = useRef<HTMLDivElement>(null);
+  const toolbarRef = useRef<HTMLDivElement>(null);
+  const toolbarButtonRef = useRef<HTMLDivElement>(null);
+  const toolbarSliderRef = useRef<HTMLInputElement>(null);
+
+  const [refreshRef, setRefreshRef] = useState(false);
+
+  const windowSize = useWindowSize();
+  const scale = (scaleMin + scaleMax) - commonStore.trackScale;
+
+  const [selectedTrackId, setSelectedTrackId] = useState<string>('');
+  const playStartTimeControlX = useRef(0);
+  const selectedTrack = selectedTrackId ? commonStore.tracks.find(t => t.id === selectedTrackId) : undefined;
+
+  useEffect(() => {
+    setRefreshRef(!refreshRef);
+  }, [windowSize, commonStore.tracks]);
+
+  const viewControlsContainerWidth = (toolbarRef.current && toolbarButtonRef.current && toolbarSliderRef.current) ?
+    toolbarRef.current.clientWidth - toolbarButtonRef.current.clientWidth - toolbarSliderRef.current.clientWidth - 16 // 16 = ml-2 mr-2
+    : 0;
+  const tracksWidth = viewControlsContainerWidth;
+  const timeOfTracksWidth = Math.floor(tracksWidth / snapValue) // number of moves
+    * baseMoveTime * scale;
+  const currentTimeControlWidth = (timeOfTracksWidth < commonStore.trackTotalTime)
+    ? timeOfTracksWidth / commonStore.trackTotalTime * viewControlsContainerWidth
+    : 0;
+  const playStartTimeControlPosition = {
+    x: (commonStore.trackPlayStartTime - commonStore.trackCurrentTime) / (baseMoveTime * scale) * snapValue,
+    y: 0
+  };
+
+  return (
+    <div className="flex flex-col gap-2 overflow-hidden" style={{ width: '80vw', height: '80vh' }}>
+      <div className="mx-auto">
+        <Text size={100}>{`${commonStore.trackPlayStartTime} ms / ${commonStore.trackTotalTime} ms`}</Text>
+      </div>
+      <div className="flex pb-2 border-b" ref={toolbarRef}>
+        <div className="flex gap-2" ref={toolbarButtonRef}>
+          <ToolTipButton desc={t('Play All')} icon={<Play16Regular />} />
+          <ToolTipButton desc={t('Clear All')} icon={<Delete16Regular />} onClick={() => {
+            commonStore.setTracks([]);
+          }} />
+        </div>
+        <div className="grow">
+          <div className="flex flex-col ml-2 mr-2">
+            <Draggable axis="x" bounds={{
+              left: 0,
+              right: viewControlsContainerWidth - currentTimeControlWidth
+            }}
+              position={{
+                x: commonStore.trackCurrentTime / commonStore.trackTotalTime * viewControlsContainerWidth,
+                y: 0
+              }}
+              onDrag={(e, data) => {
+                setTimeout(() => {
+                  let offset = 0;
+                  if (currentTimeControlRef.current) {
+                    const match = currentTimeControlRef.current.style.transform.match(/translate\((.+)px,/);
+                    if (match)
+                      offset = parseFloat(match[1]);
+                  }
+                  const offsetTime = commonStore.trackTotalTime / viewControlsContainerWidth * offset;
+                  commonStore.setTrackCurrentTime(offsetTime);
+                }, 1);
+              }}
+            >
+              <div ref={currentTimeControlRef} className="h-2 bg-gray-700 cursor-move rounded"
+                style={{ width: currentTimeControlWidth }} />
+            </Draggable>
+            <div className={classnames(
+              'flex',
+              (playStartTimeControlPosition.x < 0 || playStartTimeControlPosition.x > viewControlsContainerWidth)
+              && 'hidden'
+            )}>
+              <Draggable axis="x" bounds={{
+                left: 0,
+                right: (playStartTimeControlRef.current)
+                  ? viewControlsContainerWidth - playStartTimeControlRef.current.clientWidth
+                  : 0
+              }}
+                grid={[snapValue, snapValue]}
+                position={playStartTimeControlPosition}
+                onStart={(e, data) => {
+                  playStartTimeControlX.current = data.lastX;
+                }}
+                onStop={(e, data) => {
+                  const delta = data.lastX - playStartTimeControlX.current;
+                  let offsetTime = Math.round(Math.round(delta / snapValue * baseMoveTime * scale) / minimalMoveTime) * minimalMoveTime;
+                  offsetTime = Math.min(Math.max(
+                    offsetTime,
+                    -commonStore.trackPlayStartTime), commonStore.trackTotalTime - commonStore.trackPlayStartTime);
+                  commonStore.setTrackPlayStartTime(commonStore.trackPlayStartTime + offsetTime);
+                }}
+              >
+                <div className="relative cursor-move"
+                  ref={playStartTimeControlRef}>
+                  <ArrowAutofitWidth20Regular />
+                  <div className="border-l absolute border-gray-700"
+                    style={{
+                      height: (tracksRef.current && commonStore.tracks.length > 0)
+                        ? tracksRef.current.clientHeight
+                        : 0,
+                      top: '50%',
+                      left: 'calc(50% - 0.5px)'
+                    }} />
+                </div>
+              </Draggable>
+            </div>
+          </div>
+        </div>
+        <Tooltip content={t('Scale View')!} showDelay={0} hideDelay={0} relationship="label">
+          <Slider ref={toolbarSliderRef} value={commonStore.trackScale} step={scaleMin} max={scaleMax} min={scaleMin}
+            onChange={(e, data) => {
+              commonStore.setTrackScale(data.value);
+            }}
+          />
+        </Tooltip>
+      </div>
+      <div className="flex flex-col overflow-y-auto gap-1" ref={tracksRef}>
+        {commonStore.tracks.map(track =>
+          <div key={track.id} className="flex gap-2 pb-1 border-b">
+            <div className="flex gap-1 border-r h-7">
+              <ToolTipButton desc={t('Record')} icon={<Record16Regular />} size="small" shape="circular"
+                appearance="subtle" />
+              <ToolTipButton desc={t('Play')} icon={<Play16Regular />} size="small" shape="circular"
+                appearance="subtle" />
+              <ToolTipButton desc={t('Delete')} icon={<Delete16Regular />} size="small" shape="circular"
+                appearance="subtle" onClick={() => {
+                const tracks = commonStore.tracks.slice().filter(t => t.id !== track.id);
+                commonStore.setTracks(tracks);
+              }} />
+            </div>
+            <div className="relative grow overflow-hidden">
+              <div className="absolute" style={{ left: -0 }}>
+                <Track
+                  id={track.id}
+                  scale={scale}
+                  right={tracksWidth}
+                  isSelected={selectedTrackId === track.id}
+                  onSelect={setSelectedTrackId}
+                />
+              </div>
+            </div>
+          </div>)}
+        <div className="flex justify-between items-center">
+          <Button icon={<Add16Regular />} size="small" shape="circular"
+            appearance="subtle"
+            onClick={() => {
+              commonStore.setTracks([...commonStore.tracks, {
+                id: uuid(),
+                content: '',
+                offsetTime: 0,
+                contentTime: 0
+              }]);
+            }}>
+            {t('New Track')}
+          </Button>
+          <Text size={100}>
+            {t('Select a track to preview the content')}
+          </Text>
+        </div>
+      </div>
+      <div className="grow"></div>
+      {selectedTrack &&
+        <Card size="small" appearance="outline" style={{ minHeight: '150px' }}>
+          <div className="flex flex-col gap-1 overflow-hidden">
+            <Text size={100}>{`${t('Start Time')}: ${selectedTrack.offsetTime} ms`}</Text>
+            <Text size={100}>{`${t('Content Time')}: ${selectedTrack.contentTime} ms`}</Text>
+            <div className="overflow-y-auto overflow-x-hidden">
+              {selectedTrack.content}
+            </div>
+          </div>
+        </Card>
+      }
+      <Button icon={<MusicNote220Regular />} style={{ minHeight: '32px' }}>
+        {t('Save to generation area')}
+      </Button>
+    </div>
+  );
+});
+
+export default AudiotrackEditor;

frontend/src/pages/Composition.tsx

@@ -2,7 +2,7 @@ import 'html-midi-player';
 import React, { FC, useEffect, useRef } from 'react';
 import { observer } from 'mobx-react-lite';
 import { WorkHeader } from '../components/WorkHeader';
-import { Button, Checkbox, Textarea } from '@fluentui/react-components';
+import { Button, Checkbox, Dropdown, Option, Textarea } from '@fluentui/react-components';
 import { Labeled } from '../components/Labeled';
 import { ValuedSlider } from '../components/ValuedSlider';
 import { useTranslation } from 'react-i18next';
@@ -20,6 +20,7 @@ import { FileExists, OpenFileFolder, OpenSaveFileDialogBytes } from '../../wails
 import { getServerRoot, toastWithButton } from '../utils';
 import { CompositionParams } from '../types/composition';
 import { useMediaQuery } from 'usehooks-ts';
+import { AudiotrackButton } from './AudiotrackManager/AudiotrackButton';
 
 let compositionSseController: AbortController | null = null;
 
@@ -267,6 +268,18 @@ const CompositionPanel: FC = observer(() => {
                 autoPlay: data.checked as boolean
               });
             }} />
+            {commonStore.platform !== 'web' &&
+              <Labeled flex breakline label={t('MIDI Input')}
+                desc={t('Select the MIDI input device to be used.')}
+                content={
+                  <div className="flex flex-col gap-1">
+                    <Dropdown style={{ minWidth: 0 }}>
+                      <Option>{t('None')!}</Option>
+                    </Dropdown>
+                    <AudiotrackButton />
+                  </div>
+                } />
+            }
           </div>
           <div className="flex justify-between gap-2">
             <ToolTipButton desc={t('Regenerate')} icon={<ArrowSync20Regular />} onClick={() => {

frontend/src/stores/commonStore.ts

@@ -9,7 +9,7 @@ import { Preset } from '../types/presets';
 import { AboutContent } from '../types/about';
 import { Attachment, ChatParams, Conversation } from '../types/chat';
 import { CompletionPreset } from '../types/completion';
-import { CompositionParams } from '../types/composition';
+import { CompositionParams, Track } from '../types/composition';
 import { ModelConfig } from '../types/configs';
 import { DownloadStatus } from '../types/downloads';
 import { IntroductionContent } from '../types/home';
@@ -90,6 +90,11 @@ class CommonStore {
   };
   compositionGenerating: boolean = false;
   compositionSubmittedPrompt: string = defaultCompositionPrompt;
+  tracks: Track[] = [];
+  trackScale: number = 1;
+  trackTotalTime: number = 5000;
+  trackCurrentTime: number = 0;
+  trackPlayStartTime: number = 0;
   // configs
   currentModelConfigIndex: number = 0;
   modelConfigs: ModelConfig[] = [];
@@ -380,6 +385,26 @@ class CommonStore {
   setSidePanelCollapsed(value: boolean | 'auto') {
     this.sidePanelCollapsed = value;
   }
+
+  setTracks(value: Track[]) {
+    this.tracks = value;
+  }
+
+  setTrackScale(value: number) {
+    this.trackScale = value;
+  }
+
+  setTrackTotalTime(value: number) {
+    this.trackTotalTime = value;
+  }
+
+  setTrackCurrentTime(value: number) {
+    this.trackCurrentTime = value;
+  }
+
+  setTrackPlayStartTime(value: number) {
+    this.trackPlayStartTime = value;
+  }
 }
 
 export default new CommonStore();

frontend/src/types/composition.ts

@@ -10,3 +10,9 @@ export type CompositionParams = {
   midi: ArrayBuffer | null,
   ns: NoteSequence | null
 }
+export type Track = {
+  id: string;
+  content: string;
+  offsetTime: number;
+  contentTime: number;
+};

frontend/vite.config.ts

@@ -21,6 +21,7 @@ const embedded = [
 
   // dependencies that exist in single component
   'react-beautiful-dnd',
+  'react-draggable',
   '@magenta/music', 'html-midi-player',
   'react-markdown', 'rehype-highlight', 'rehype-raw', 'remark-breaks', 'remark-gfm'
 ];