blockly/core/renderers/common/block_rendering.ts

/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

import * as goog from '../../../closure/goog/goog.js';
goog.declareModuleId('Blockly.blockRendering');

import * as registry from '../../registry.js';
import type {Theme} from '../../theme.js';
import {Measurable} from '../measurables/base.js';
import {BottomRow} from '../measurables/bottom_row.js';
import {Connection} from '../measurables/connection.js';
import {ExternalValueInput} from '../measurables/external_value_input.js';
import {Field} from '../measurables/field.js';
import {Hat} from '../measurables/hat.js';
import {Icon} from '../measurables/icon.js';
import {InRowSpacer} from '../measurables/in_row_spacer.js';
import {InlineInput} from '../measurables/inline_input.js';
import {InputConnection} from '../measurables/input_connection.js';
import {InputRow} from '../measurables/input_row.js';
import {JaggedEdge} from '../measurables/jagged_edge.js';
import {NextConnection} from '../measurables/next_connection.js';
import {OutputConnection} from '../measurables/output_connection.js';
import {PreviousConnection} from '../measurables/previous_connection.js';
import {RoundCorner} from '../measurables/round_corner.js';
import {Row} from '../measurables/row.js';
import {SpacerRow} from '../measurables/spacer_row.js';
import {SquareCorner} from '../measurables/square_corner.js';
import {StatementInput} from '../measurables/statement_input.js';
import {TopRow} from '../measurables/top_row.js';
import {Types} from '../measurables/types.js';

import {ConstantProvider} from './constants.js';
import {Drawer} from './drawer.js';
import type {IPathObject} from './i_path_object.js';
import {RenderInfo} from './info.js';
import {MarkerSvg} from './marker_svg.js';
import {PathObject} from './path_object.js';
import {Renderer} from './renderer.js';

/**
 * Registers a new renderer.
 *
 * @param name The name of the renderer.
 * @param rendererClass The new renderer class to register.
 * @throws {Error} if a renderer with the same name has already been registered.
 */
export function register(name: string, rendererClass: Function) {
  registry.register(registry.Type.RENDERER, name, rendererClass);
}

/**
 * Unregisters the renderer registered with the given name.
 *
 * @param name The name of the renderer.
 */
export function unregister(name: string) {
  registry.unregister(registry.Type.RENDERER, name);
}

/**
 * Initialize anything needed for rendering (constants, etc).
 *
 * @param name Name of the renderer to initialize.
 * @param theme The workspace theme object.
 * @param opt_rendererOverrides Rendering constant overrides.
 * @returns The new instance of a renderer.
 *     Already initialized.
 * @internal
 */
export function init(
  name: string,
  theme: Theme,
  opt_rendererOverrides?: {[rendererConstant: string]: any},
): Renderer {
  const rendererClass = registry.getClass(registry.Type.RENDERER, name);
  const renderer = new rendererClass!(name);
  renderer.init(theme, opt_rendererOverrides);
  return renderer;
}
export {BottomRow};
export {Connection};
export {ConstantProvider};
export {Drawer};
export {ExternalValueInput};
export {Field};
export {Hat};
export {Icon};
export {InRowSpacer};
export {InlineInput};
export {InputConnection};
export {InputRow};
export {IPathObject};
export {JaggedEdge};
export {MarkerSvg};
export {Measurable};
export {NextConnection};
export {OutputConnection};
export {PathObject};
export {PreviousConnection};
export {Renderer};
export {RenderInfo};
export {RoundCorner};
export {Row};
export {SpacerRow};
export {SquareCorner};
export {StatementInput};
export {TopRow};
export {Types};