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

/**
 * @fileoverview An object that provides constants for rendering blocks in Geras
 * mode.
 */
'use strict';

/**
 * An object that provides constants for rendering blocks in Geras
 * mode.
 * @class
 */
goog.module('Blockly.geras.ConstantProvider');

const {ConstantProvider: BaseConstantProvider} = goog.require('Blockly.blockRendering.ConstantProvider');


/**
 * An object that provides constants for rendering blocks in Geras mode.
 * @extends {BaseConstantProvider}
 * @alias Blockly.geras.ConstantProvider
 */
class ConstantProvider extends BaseConstantProvider {
  /**
   * @package
   */
  constructor() {
    super();

    /**
     * @override
     */
    this.FIELD_TEXT_BASELINE_CENTER = false;

    // The dark/shadow path in classic rendering is the same as the normal block
    // path, but translated down one and right one.
    this.DARK_PATH_OFFSET = 1;

    /**
     * The maximum width of a bottom row that follows a statement input and has
     * inputs inline.
     * @type {number}
     */
    this.MAX_BOTTOM_WIDTH = 30;

    /**
     * @override
     */
    this.STATEMENT_BOTTOM_SPACER = -this.NOTCH_HEIGHT / 2;
  }

  /**
   * @override
   */
  getCSS_(selector) {
    return super.getCSS_(selector).concat([
      /* eslint-disable indent */
      // Insertion marker.
      selector + ' .blocklyInsertionMarker>.blocklyPathLight,',
      selector + ' .blocklyInsertionMarker>.blocklyPathDark {',
      'fill-opacity: ' + this.INSERTION_MARKER_OPACITY + ';', 'stroke: none;',
      '}',
      /* eslint-enable indent */
    ]);
  }
}

exports.ConstantProvider = ConstantProvider;