blockly
Version:
Blockly is a library for building visual programming editors.
71 lines (61 loc) • 1.91 kB
JavaScript
/**
* @license
* Copyright 2019 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @fileoverview An object representing the top row of a rendered block.
*/
;
/**
* An object representing the top row of a rendered block.
* @class
*/
goog.module('Blockly.zelos.TopRow');
const object = goog.require('Blockly.utils.object');
/* eslint-disable-next-line no-unused-vars */
const {ConstantProvider} = goog.requireType('Blockly.blockRendering.ConstantProvider');
const {TopRow: BaseTopRow} = goog.require('Blockly.blockRendering.TopRow');
/**
* An object containing information about what elements are in the top row of a
* block as well as sizing information for the top row.
* Elements in a top row can consist of corners, hats, spacers, and previous
* connections.
* After this constructor is called, the row will contain all non-spacer
* elements it needs.
* @param {!ConstantProvider} constants The rendering
* constants provider.
* @package
* @constructor
* @extends {BaseTopRow}
* @alias Blockly.zelos.TopRow
*/
const TopRow = function(constants) {
TopRow.superClass_.constructor.call(this, constants);
};
object.inherits(TopRow, BaseTopRow);
/**
* @override
*/
TopRow.prototype.endsWithElemSpacer = function() {
return false;
};
/**
* Render a round corner unless the block has an output connection.
* @override
*/
TopRow.prototype.hasLeftSquareCorner = function(block) {
const hasHat =
(block.hat ? block.hat === 'cap' : this.constants_.ADD_START_HATS) &&
!block.outputConnection && !block.previousConnection;
return !!block.outputConnection || hasHat;
};
/**
* Render a round corner unless the block has an output connection.
* @override
*/
TopRow.prototype.hasRightSquareCorner = function(block) {
return !!block.outputConnection && !block.statementInputCount &&
!block.nextConnection;
};
exports.TopRow = TopRow;