Hide dashboard elements if only one canvas view (#5599)

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([cvat-canvas](https://github.com/cvat-ai/cvat/tree/develop/cvat-canvas#versioning),

[cvat-core](https://github.com/cvat-ai/cvat/tree/develop/cvat-core#versioning),
[cvat-data](https://github.com/cvat-ai/cvat/tree/develop/cvat-data#versioning)
and
[cvat-ui](https://github.com/cvat-ai/cvat/tree/develop/cvat-ui#versioning))

### License

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cvat-ui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "cvat-ui",
-  "version": "1.47.0",
+  "version": "1.47.1",
   "description": "CVAT single-page application",
   "main": "src/index.tsx",
   "scripts": {

cvat-ui/src/components/annotation-page/canvas/grid-layout/canvas-layout.conf.tsx

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: MIT
 
+import config from 'config';
+
 export interface ItemLayout {
     viewType: ViewType;
     offset: number[];
@@ -35,8 +37,8 @@ defaultLayout['2D']['0'] = [{
     offset: [0],
     x: 0,
     y: 0,
-    w: 12,
-    h: 12,
+    w: config.CANVAS_WORKSPACE_COLS,
+    h: config.CANVAS_WORKSPACE_ROWS,
 }];
 
 defaultLayout['2D']['1'] = [
@@ -46,7 +48,7 @@ defaultLayout['2D']['1'] = [
         x: 9,
         y: 0,
         w: 3,
-        h: 4,
+        h: config.CANVAS_WORKSPACE_DEFAULT_CONTEXT_HEIGHT,
         viewIndex: '0',
     },
 ];
@@ -111,7 +113,7 @@ defaultLayout['3D']['1'] = [
         x: 9,
         y: 0,
         w: 3,
-        h: 4,
+        h: config.CANVAS_WORKSPACE_DEFAULT_CONTEXT_HEIGHT,
         viewIndex: '0',
     },
 ];

cvat-ui/src/components/annotation-page/canvas/grid-layout/canvas-layout.tsx

@@ -72,7 +72,8 @@ const fitLayout = (type: DimensionType, layoutConfig: ItemLayout[]): ItemLayout[
     const relatedViews = layoutConfig
         .filter((item: ItemLayout) => item.viewType === ViewType.RELATED_IMAGE);
     const relatedViewsCols = relatedViews.length > 6 ? 2 : 1;
-    const height = Math.floor(config.CANVAS_WORKSPACE_ROWS / (relatedViews.length / relatedViewsCols));
+    let height = Math.floor(config.CANVAS_WORKSPACE_ROWS / (relatedViews.length / relatedViewsCols));
+    height = Math.min(height, config.CANVAS_WORKSPACE_DEFAULT_CONTEXT_HEIGHT);
     relatedViews.forEach((view: ItemLayout, i: number) => {
         updatedLayout.push({
             ...view,
@@ -210,6 +211,10 @@ function CanvasLayout({ type }: { type?: DimensionType }): JSX.Element {
         i: typeof (value.viewIndex) !== 'undefined' ? `${value.viewType}_${value.viewIndex}` : `${value.viewType}`,
     }));
 
+    const singleClassName = 'cvat-canvas-grid-root-single';
+    const className = !relatedFiles && children.length <= 1 ?
+        `cvat-canvas-grid-root ${singleClassName}` : 'cvat-canvas-grid-root';
+
     return (
         <Layout.Content>
             { !!rowHeight && (
@@ -219,7 +224,7 @@ function CanvasLayout({ type }: { type?: DimensionType }): JSX.Element {
                     style={{ background: canvasBackgroundColor }}
                     containerPadding={[config.CANVAS_WORKSPACE_PADDING, config.CANVAS_WORKSPACE_PADDING]}
                     margin={[config.CANVAS_WORKSPACE_MARGIN, config.CANVAS_WORKSPACE_MARGIN]}
-                    className='cvat-canvas-grid-root'
+                    className={className}
                     rowHeight={rowHeight}
                     layout={layout}
                     onLayoutChange={(updatedLayout: RGL.Layout[]) => {

cvat-ui/src/components/annotation-page/canvas/grid-layout/styles.scss

@@ -8,6 +8,28 @@
     position: relative;
 }
 
+.cvat-canvas-grid-root-single {
+    .cvat-grid-item-drag-handler {
+        display: none;
+    }
+
+    .cvat-grid-item-fullscreen-handler {
+        display: none;
+    }
+
+    .cvat-grid-item-resize-handler {
+        display: none;
+    }
+
+    .cvat-grid-item-close-button {
+        display: none;
+    }
+
+    & +.cvat-grid-layout-common-setups {
+        display: none;
+    }
+}
+
 .cvat-grid-layout-common-setups {
     position: absolute;
     top: 0;

cvat-ui/src/config.tsx

@@ -29,6 +29,7 @@ const DEFAULT_PROJECT_SUBSETS = ['Train', 'Test', 'Validation'];
 const CANVAS_WORKSPACE_ROWS = 12;
 const CANVAS_WORKSPACE_COLS = 12;
 const CANVAS_WORKSPACE_MARGIN = 8;
+const CANVAS_WORKSPACE_DEFAULT_CONTEXT_HEIGHT = 4;
 const CANVAS_WORKSPACE_PADDING = CANVAS_WORKSPACE_MARGIN / 2;
 const OUTSIDE_PIC_URL = 'https://opencv.github.io/cvat/images/image019.jpg';
 const DEFAULT_AWS_S3_REGIONS: string[][] = [
@@ -142,4 +143,5 @@ export default {
     CANVAS_WORKSPACE_COLS,
     CANVAS_WORKSPACE_MARGIN,
     CANVAS_WORKSPACE_PADDING,
+    CANVAS_WORKSPACE_DEFAULT_CONTEXT_HEIGHT,
 };