mirror of
https://github.com/google/blockly.git
synced 2026-01-11 02:47:09 +01:00
1647a3299a
* fix: Move @alias onto classes instead of constructors * fix: Fix JSDoc for constructors.
139 lines
3.6 KiB
JavaScript
139 lines
3.6 KiB
JavaScript
/**
|
|
* @license
|
|
* Copyright 2019 Google LLC
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @fileoverview Object representing a bottom row on a rendered block.
|
|
* of its subcomponents.
|
|
*/
|
|
|
|
/**
|
|
* Object representing a bottom row on a rendered block.
|
|
* of its subcomponents.
|
|
* @class
|
|
*/
|
|
goog.module('Blockly.blockRendering.BottomRow');
|
|
|
|
/* eslint-disable-next-line no-unused-vars */
|
|
const {BlockSvg} = goog.requireType('Blockly.BlockSvg');
|
|
/* eslint-disable-next-line no-unused-vars */
|
|
const {ConstantProvider} = goog.requireType('Blockly.blockRendering.ConstantProvider');
|
|
/* eslint-disable-next-line no-unused-vars */
|
|
const {NextConnection} = goog.requireType('Blockly.blockRendering.NextConnection');
|
|
const {Row} = goog.require('Blockly.blockRendering.Row');
|
|
const {Types} = goog.require('Blockly.blockRendering.Types');
|
|
|
|
|
|
/**
|
|
* An object containing information about what elements are in the bottom row of
|
|
* a block as well as spacing information for the bottom row.
|
|
* Elements in a bottom row can consist of corners, spacers and next
|
|
* connections.
|
|
* @extends {Row}
|
|
* @struct
|
|
* @alias Blockly.blockRendering.BottomRow
|
|
*/
|
|
class BottomRow extends Row {
|
|
/**
|
|
* @param {!ConstantProvider} constants The rendering
|
|
* constants provider.
|
|
* @package
|
|
*/
|
|
constructor(constants) {
|
|
super(constants);
|
|
this.type |= Types.BOTTOM_ROW;
|
|
|
|
/**
|
|
* Whether this row has a next connection.
|
|
* @package
|
|
* @type {boolean}
|
|
*/
|
|
this.hasNextConnection = false;
|
|
|
|
/**
|
|
* The next connection on the row, if any.
|
|
* @package
|
|
* @type {NextConnection}
|
|
*/
|
|
this.connection = null;
|
|
|
|
/**
|
|
* The amount that the bottom of the block extends below the horizontal
|
|
* edge, e.g. because of a next connection. Must be non-negative (see
|
|
* #2820).
|
|
* @package
|
|
* @type {number}
|
|
*/
|
|
this.descenderHeight = 0;
|
|
|
|
/**
|
|
* The Y position of the bottom edge of the block, relative to the origin
|
|
* of the block rendering.
|
|
* @type {number}
|
|
*/
|
|
this.baseline = 0;
|
|
}
|
|
|
|
/**
|
|
* Returns whether or not the bottom row has a left square corner.
|
|
* @param {!BlockSvg} block The block whose bottom row this represents.
|
|
* @return {boolean} Whether or not the bottom row has a left square corner.
|
|
*/
|
|
hasLeftSquareCorner(block) {
|
|
return !!block.outputConnection || !!block.getNextBlock();
|
|
}
|
|
|
|
/**
|
|
* Returns whether or not the bottom row has a right square corner.
|
|
* @param {!BlockSvg} _block The block whose bottom row this represents.
|
|
* @return {boolean} Whether or not the bottom row has a right square corner.
|
|
*/
|
|
hasRightSquareCorner(_block) {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
measure() {
|
|
let height = 0;
|
|
let width = 0;
|
|
let descenderHeight = 0;
|
|
for (let i = 0; i < this.elements.length; i++) {
|
|
const elem = this.elements[i];
|
|
width += elem.width;
|
|
if (!(Types.isSpacer(elem))) {
|
|
// Note: this assumes that next connections have *only* descenderHeight,
|
|
// with no height above the baseline.
|
|
if (Types.isNextConnection(elem)) {
|
|
descenderHeight = Math.max(descenderHeight, elem.height);
|
|
} else {
|
|
height = Math.max(height, elem.height);
|
|
}
|
|
}
|
|
}
|
|
this.width = Math.max(this.minWidth, width);
|
|
this.height = Math.max(this.minHeight, height) + descenderHeight;
|
|
this.descenderHeight = descenderHeight;
|
|
this.widthWithConnectedBlocks = this.width;
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
startsWithElemSpacer() {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
endsWithElemSpacer() {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
exports.BottomRow = BottomRow;
|