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feat: merge copy paste work into develop
Merge pull request #7379 from google/operation-copy-that
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/** | ||
* @license | ||
* Copyright 2023 Google LLC | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
|
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import {BlockSvg} from '../block_svg.js'; | ||
import * as registry from './registry.js'; | ||
import {ICopyData} from '../interfaces/i_copyable.js'; | ||
import {IPaster} from '../interfaces/i_paster.js'; | ||
import {State, append} from '../serialization/blocks.js'; | ||
import {Coordinate} from '../utils/coordinate.js'; | ||
import {WorkspaceSvg} from '../workspace_svg.js'; | ||
import * as eventUtils from '../events/utils.js'; | ||
import {config} from '../config.js'; | ||
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export class BlockPaster implements IPaster<BlockCopyData, BlockSvg> { | ||
static TYPE = 'block'; | ||
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paste( | ||
copyData: BlockCopyData, | ||
workspace: WorkspaceSvg, | ||
coordinate?: Coordinate, | ||
): BlockSvg | null { | ||
if (!workspace.isCapacityAvailable(copyData.typeCounts!)) return null; | ||
|
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if (coordinate) { | ||
copyData.blockState['x'] = coordinate.x; | ||
copyData.blockState['y'] = coordinate.y; | ||
} | ||
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eventUtils.disable(); | ||
let block; | ||
try { | ||
block = append(copyData.blockState, workspace) as BlockSvg; | ||
moveBlockToNotConflict(block); | ||
} finally { | ||
eventUtils.enable(); | ||
} | ||
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if (!block) return block; | ||
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if (eventUtils.isEnabled() && !block.isShadow()) { | ||
eventUtils.fire(new (eventUtils.get(eventUtils.BLOCK_CREATE))(block)); | ||
} | ||
block.select(); | ||
return block; | ||
} | ||
} | ||
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/** | ||
* Moves the given block to a location where it does not: (1) overlap exactly | ||
* with any other blocks, or (2) look like it is connected to any other blocks. | ||
* | ||
* Exported for testing. | ||
* | ||
* @param block The block to move to an unambiguous location. | ||
* @internal | ||
*/ | ||
export function moveBlockToNotConflict(block: BlockSvg) { | ||
const workspace = block.workspace; | ||
const snapRadius = config.snapRadius; | ||
const coord = block.getRelativeToSurfaceXY(); | ||
const offset = new Coordinate(0, 0); | ||
// getRelativeToSurfaceXY is really expensive, so we want to cache this. | ||
const otherCoords = workspace | ||
.getAllBlocks(false) | ||
.filter((otherBlock) => otherBlock.id != block.id) | ||
.map((b) => b.getRelativeToSurfaceXY()); | ||
|
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while ( | ||
blockOverlapsOtherExactly(Coordinate.sum(coord, offset), otherCoords) || | ||
blockIsInSnapRadius(block, offset, snapRadius) | ||
) { | ||
if (workspace.RTL) { | ||
offset.translate(-snapRadius, snapRadius * 2); | ||
} else { | ||
offset.translate(snapRadius, snapRadius * 2); | ||
} | ||
} | ||
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block!.moveTo(Coordinate.sum(coord, offset)); | ||
} | ||
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/** | ||
* @returns true if the given block coordinates are less than a delta of 1 from | ||
* any of the other coordinates. | ||
*/ | ||
function blockOverlapsOtherExactly( | ||
coord: Coordinate, | ||
otherCoords: Coordinate[], | ||
): boolean { | ||
return otherCoords.some( | ||
(otherCoord) => | ||
Math.abs(otherCoord.x - coord.x) <= 1 && | ||
Math.abs(otherCoord.y - coord.y) <= 1, | ||
); | ||
} | ||
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/** | ||
* @returns true if the given block (when offset by the given amount) is close | ||
* enough to any other connections (within the snap radius) that it looks | ||
* like they could connect. | ||
*/ | ||
function blockIsInSnapRadius( | ||
block: BlockSvg, | ||
offset: Coordinate, | ||
snapRadius: number, | ||
): boolean { | ||
return block | ||
.getConnections_(false) | ||
.some((connection) => !!connection.closest(snapRadius, offset).connection); | ||
} | ||
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export interface BlockCopyData extends ICopyData { | ||
blockState: State; | ||
typeCounts: {[key: string]: number}; | ||
} | ||
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registry.register(BlockPaster.TYPE, new BlockPaster()); |
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