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c0d22f2002
This constant is used to specify the alignment of an Input, so it should live in the same file as the Input class. I've done this as a separate named export, but it could alternatively be made a static member of Input (i.e., Input.Align with only Input being exported by name). Where mocha tests were referring to Blockly.constants.ALIGN.* without actually requiring Blockly.constants, I have reverted them to refer to Blockly.ALIGN_* instead (pending conversion to named requries). Part of #5073.
602 lines
21 KiB
JavaScript
602 lines
21 KiB
JavaScript
/**
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* @license
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* Copyright 2019 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @fileoverview Makecode/scratch-style renderer.
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* Zelos: spirit of eager rivalry, emulation, envy, jealousy, and zeal.
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*/
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'use strict';
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/**
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* Makecode/scratch-style renderer.
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* @class
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*/
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goog.module('Blockly.zelos.RenderInfo');
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const {Align} = goog.require('Blockly.Input');
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const object = goog.require('Blockly.utils.object');
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/* eslint-disable-next-line no-unused-vars */
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const {BlockSvg} = goog.requireType('Blockly.BlockSvg');
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const {BottomRow} = goog.require('Blockly.zelos.BottomRow');
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/* eslint-disable-next-line no-unused-vars */
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const {ConstantProvider} = goog.requireType('Blockly.zelos.ConstantProvider');
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const {FieldImage} = goog.require('Blockly.FieldImage');
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const {FieldLabel} = goog.require('Blockly.FieldLabel');
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const {FieldTextInput} = goog.require('Blockly.FieldTextInput');
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const {InRowSpacer} = goog.require('Blockly.blockRendering.InRowSpacer');
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/* eslint-disable-next-line no-unused-vars */
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const {Measurable} = goog.requireType('Blockly.blockRendering.Measurable');
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const {RenderInfo: BaseRenderInfo} = goog.require('Blockly.blockRendering.RenderInfo');
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/* eslint-disable-next-line no-unused-vars */
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const {Renderer} = goog.requireType('Blockly.zelos.Renderer');
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const {RightConnectionShape} = goog.require('Blockly.zelos.RightConnectionShape');
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const {StatementInput} = goog.require('Blockly.zelos.StatementInput');
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const {TopRow} = goog.require('Blockly.zelos.TopRow');
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const {Types} = goog.require('Blockly.blockRendering.Types');
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const {inputTypes} = goog.require('Blockly.inputTypes');
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/**
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* An object containing all sizing information needed to draw this block.
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*
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* This measure pass does not propagate changes to the block (although fields
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* may choose to rerender when getSize() is called). However, calling it
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* repeatedly may be expensive.
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*
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* @param {!Renderer} renderer The renderer in use.
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* @param {!BlockSvg} block The block to measure.
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* @constructor
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* @package
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* @extends {BaseRenderInfo}
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* @alias Blockly.zelos.RenderInfo
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*/
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const RenderInfo = function(renderer, block) {
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RenderInfo.superClass_.constructor.call(this, renderer, block);
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/**
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* An object with rendering information about the top row of the block.
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* @type {!TopRow}
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* @override
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*/
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this.topRow = new TopRow(this.constants_);
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/**
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* An object with rendering information about the bottom row of the block.
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* @type {!BottomRow}
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* @override
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*/
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this.bottomRow = new BottomRow(this.constants_);
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/**
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* @override
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*/
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this.isInline = true;
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/**
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* Whether the block should be rendered as a multi-line block, either because
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* it's not inline or because it has been collapsed.
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* @type {boolean}
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*/
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this.isMultiRow = !block.getInputsInline() || block.isCollapsed();
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/**
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* Whether or not the block has a statement input in one of its rows.
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* @type {boolean}
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*/
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this.hasStatementInput = block.statementInputCount > 0;
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/**
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* An object with rendering information about the right connection shape.
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* @type {RightConnectionShape}
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*/
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this.rightSide =
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this.outputConnection ? new RightConnectionShape(this.constants_) : null;
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};
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object.inherits(RenderInfo, BaseRenderInfo);
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/**
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* Get the block renderer in use.
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* @return {!Renderer} The block renderer in use.
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* @package
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*/
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RenderInfo.prototype.getRenderer = function() {
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return /** @type {!Renderer} */ (this.renderer_);
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};
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/**
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* @override
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*/
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RenderInfo.prototype.measure = function() {
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// Modifying parent measure method to add `adjustXPosition_`.
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this.createRows_();
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this.addElemSpacing_();
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this.addRowSpacing_();
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this.adjustXPosition_();
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this.computeBounds_();
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this.alignRowElements_();
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this.finalize_();
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};
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/**
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* @override
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*/
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RenderInfo.prototype.shouldStartNewRow_ = function(input, lastInput) {
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// If this is the first input, just add to the existing row.
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// That row is either empty or has some icons in it.
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if (!lastInput) {
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return false;
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}
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// A statement input or an input following one always gets a new row.
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if (input.type === inputTypes.STATEMENT ||
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lastInput.type === inputTypes.STATEMENT) {
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return true;
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}
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// Value and dummy inputs get new row if inputs are not inlined.
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if (input.type === inputTypes.VALUE || input.type === inputTypes.DUMMY) {
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return !this.isInline || this.isMultiRow;
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}
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return false;
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};
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/**
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* @override
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*/
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RenderInfo.prototype.getDesiredRowWidth_ = function(row) {
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if (row.hasStatement) {
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const rightCornerWidth = this.constants_.INSIDE_CORNERS.rightWidth || 0;
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return this.width - this.startX - rightCornerWidth;
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}
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return RenderInfo.superClass_.getDesiredRowWidth_.call(this, row);
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};
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/**
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* @override
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*/
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RenderInfo.prototype.getInRowSpacing_ = function(prev, next) {
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if (!prev || !next) {
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// No need for padding at the beginning or end of the row if the
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// output shape is dynamic.
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if (this.outputConnection && this.outputConnection.isDynamicShape &&
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!this.hasStatementInput && !this.bottomRow.hasNextConnection) {
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return this.constants_.NO_PADDING;
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}
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}
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if (!prev) {
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// Statement input padding.
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if (next && Types.isStatementInput(next)) {
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return this.constants_.STATEMENT_INPUT_PADDING_LEFT;
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}
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}
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// Spacing between a rounded corner and a previous or next connection.
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if (prev && Types.isLeftRoundedCorner(prev) && next) {
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if (Types.isPreviousConnection(next) || Types.isNextConnection(next)) {
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return next.notchOffset - this.constants_.CORNER_RADIUS;
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}
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}
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// Spacing between a square corner and a hat.
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if (prev && Types.isLeftSquareCorner(prev) && next && Types.isHat(next)) {
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return this.constants_.NO_PADDING;
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}
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return this.constants_.MEDIUM_PADDING;
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};
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/**
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* @override
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*/
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RenderInfo.prototype.getSpacerRowHeight_ = function(prev, next) {
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// If we have an empty block add a spacer to increase the height.
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if (Types.isTopRow(prev) && Types.isBottomRow(next)) {
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return this.constants_.EMPTY_BLOCK_SPACER_HEIGHT;
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}
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const followsStatement = Types.isInputRow(prev) && prev.hasStatement;
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const precedesStatement = Types.isInputRow(next) && next.hasStatement;
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if (precedesStatement || followsStatement) {
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const cornerHeight = this.constants_.INSIDE_CORNERS.rightHeight || 0;
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const height = Math.max(this.constants_.NOTCH_HEIGHT, cornerHeight);
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return precedesStatement && followsStatement ?
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Math.max(height, this.constants_.DUMMY_INPUT_MIN_HEIGHT) :
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height;
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}
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// Top and bottom rows act as a spacer so we don't need any extra padding.
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if (Types.isTopRow(prev)) {
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if (!prev.hasPreviousConnection &&
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(!this.outputConnection || this.hasStatementInput)) {
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return Math.abs(
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this.constants_.NOTCH_HEIGHT - this.constants_.CORNER_RADIUS);
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}
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return this.constants_.NO_PADDING;
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}
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if (Types.isBottomRow(next)) {
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if (!this.outputConnection) {
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const topHeight = Math.max(
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this.topRow.minHeight,
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Math.max(
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this.constants_.NOTCH_HEIGHT,
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this.constants_.CORNER_RADIUS)) -
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this.constants_.CORNER_RADIUS;
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return topHeight;
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} else if (!next.hasNextConnection && this.hasStatementInput) {
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return Math.abs(
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this.constants_.NOTCH_HEIGHT - this.constants_.CORNER_RADIUS);
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}
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return this.constants_.NO_PADDING;
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}
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return this.constants_.MEDIUM_PADDING;
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};
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/**
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* @override
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*/
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RenderInfo.prototype.getSpacerRowWidth_ = function(prev, next) {
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const width = this.width - this.startX;
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if ((Types.isInputRow(prev) && prev.hasStatement) ||
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(Types.isInputRow(next) && next.hasStatement)) {
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return Math.max(width, this.constants_.STATEMENT_INPUT_SPACER_MIN_WIDTH);
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}
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return width;
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};
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/**
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* @override
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*/
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RenderInfo.prototype.getElemCenterline_ = function(row, elem) {
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if (row.hasStatement && !Types.isSpacer(elem) &&
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!Types.isStatementInput(elem)) {
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return row.yPos + this.constants_.EMPTY_STATEMENT_INPUT_HEIGHT / 2;
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}
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if (Types.isInlineInput(elem)) {
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const connectedBlock = elem.connectedBlock;
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if (connectedBlock && connectedBlock.outputConnection &&
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connectedBlock.nextConnection) {
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return row.yPos + connectedBlock.height / 2;
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}
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}
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return RenderInfo.superClass_.getElemCenterline_.call(this, row, elem);
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};
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/**
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* @override
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*/
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RenderInfo.prototype.addInput_ = function(input, activeRow) {
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// If we have two dummy inputs on the same row, one aligned left and the other
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// right, keep track of the right aligned dummy input so we can add padding
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// later.
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if (input.type === inputTypes.DUMMY && activeRow.hasDummyInput &&
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activeRow.align === Align.LEFT && input.align === Align.RIGHT) {
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activeRow.rightAlignedDummyInput = input;
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} else if (input.type === inputTypes.STATEMENT) {
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// Handle statements without next connections correctly.
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activeRow.elements.push(new StatementInput(this.constants_, input));
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activeRow.hasStatement = true;
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if (activeRow.align === null) {
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activeRow.align = input.align;
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}
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return;
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}
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RenderInfo.superClass_.addInput_.call(this, input, activeRow);
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};
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/**
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* @override
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*/
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RenderInfo.prototype.addAlignmentPadding_ = function(row, missingSpace) {
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if (row.rightAlignedDummyInput) {
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let alignmentDivider;
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for (let i = 0; i < row.elements.length; i++) {
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const elem = row.elements[i];
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if (Types.isSpacer(elem)) {
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alignmentDivider = elem;
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}
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if (Types.isField(elem) &&
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elem.parentInput === row.rightAlignedDummyInput) {
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break;
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}
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}
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if (alignmentDivider) {
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alignmentDivider.width += missingSpace;
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row.width += missingSpace;
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return;
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}
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}
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RenderInfo.superClass_.addAlignmentPadding_.call(this, row, missingSpace);
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};
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/**
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* Adjust the x position of fields to bump all non-label fields in the first row
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* past the notch position. This must be called before ``computeBounds`` is
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* called.
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* @protected
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*/
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RenderInfo.prototype.adjustXPosition_ = function() {
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const notchTotalWidth =
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this.constants_.NOTCH_OFFSET_LEFT + this.constants_.NOTCH_WIDTH;
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let minXPos = notchTotalWidth;
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// Run through every input row on the block and only apply bump logic to the
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// first input row (if the block has prev connection) and every input row that
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// has a prev and next notch.
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for (let i = 2; i < this.rows.length - 1; i += 2) {
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const prevSpacer = this.rows[i - 1];
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const row = this.rows[i];
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const nextSpacer = this.rows[i + 1];
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const hasPrevNotch = i === 2 ? !!this.topRow.hasPreviousConnection :
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!!prevSpacer.followsStatement;
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const hasNextNotch = i + 2 >= this.rows.length - 1 ?
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!!this.bottomRow.hasNextConnection :
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!!nextSpacer.precedesStatement;
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if (Types.isInputRow(row) && row.hasStatement) {
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row.measure();
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minXPos = row.width - row.getLastInput().width + notchTotalWidth;
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} else if (
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hasPrevNotch && (i === 2 || hasNextNotch) && Types.isInputRow(row) &&
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!row.hasStatement) {
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let xCursor = row.xPos;
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let prevInRowSpacer = null;
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for (let j = 0; j < row.elements.length; j++) {
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const elem = row.elements[j];
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if (Types.isSpacer(elem)) {
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prevInRowSpacer = elem;
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}
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if (prevInRowSpacer && (Types.isField(elem) || Types.isInput(elem))) {
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if (xCursor < minXPos &&
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!(Types.isField(elem) &&
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(elem.field instanceof FieldLabel ||
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elem.field instanceof FieldImage))) {
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const difference = minXPos - xCursor;
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prevInRowSpacer.width += difference;
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}
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}
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xCursor += elem.width;
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}
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}
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}
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};
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/**
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* Finalize the output connection info. In particular, set the height of the
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* output connection to match that of the block. For the right side, add a
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* right connection shape element and have it match the dimensions of the
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* output connection.
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* @protected
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*/
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RenderInfo.prototype.finalizeOutputConnection_ = function() {
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// Dynamic output connections depend on the height of the block.
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if (!this.outputConnection || !this.outputConnection.isDynamicShape) {
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return;
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}
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let yCursor = 0;
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// Determine the block height.
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for (let i = 0; i < this.rows.length; i++) {
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const row = this.rows[i];
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row.yPos = yCursor;
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yCursor += row.height;
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}
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this.height = yCursor;
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// Adjust the height of the output connection.
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const blockHeight = this.bottomRow.hasNextConnection ?
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this.height - this.bottomRow.descenderHeight :
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this.height;
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const connectionHeight = this.outputConnection.shape.height(blockHeight);
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const connectionWidth = this.outputConnection.shape.width(blockHeight);
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this.outputConnection.height = connectionHeight;
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this.outputConnection.width = connectionWidth;
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this.outputConnection.startX = connectionWidth;
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this.outputConnection.connectionOffsetY =
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this.outputConnection.shape.connectionOffsetY(connectionHeight);
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this.outputConnection.connectionOffsetX =
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this.outputConnection.shape.connectionOffsetX(connectionWidth);
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// Add the right connection measurable.
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// Don't add it if we have a value-to-statement or a value-to-stack block.
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let rightConnectionWidth = 0;
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if (!this.hasStatementInput && !this.bottomRow.hasNextConnection) {
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rightConnectionWidth = connectionWidth;
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this.rightSide.height = connectionHeight;
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this.rightSide.width = rightConnectionWidth;
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this.rightSide.centerline = connectionHeight / 2;
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this.rightSide.xPos = this.width + rightConnectionWidth;
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}
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this.startX = connectionWidth;
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this.width += connectionWidth + rightConnectionWidth;
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this.widthWithChildren += connectionWidth + rightConnectionWidth;
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};
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/**
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* Finalize horizontal alignment of elements on the block. In particular,
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* reduce the implicit spacing created by the left and right output connection
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* shapes by adding setting negative spacing onto the leftmost and rightmost
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* spacers.
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* @protected
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*/
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RenderInfo.prototype.finalizeHorizontalAlignment_ = function() {
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if (!this.outputConnection || this.hasStatementInput ||
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this.bottomRow.hasNextConnection) {
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return;
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}
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let totalNegativeSpacing = 0;
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for (let i = 0; i < this.rows.length; i++) {
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const row = this.rows[i];
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if (!Types.isInputRow(row)) {
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continue;
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}
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const firstElem = row.elements[1];
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const lastElem = row.elements[row.elements.length - 2];
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let leftNegPadding = this.getNegativeSpacing_(firstElem);
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let rightNegPadding = this.getNegativeSpacing_(lastElem);
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totalNegativeSpacing = leftNegPadding + rightNegPadding;
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const minBlockWidth =
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this.constants_.MIN_BLOCK_WIDTH + this.outputConnection.width * 2;
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if (this.width - totalNegativeSpacing < minBlockWidth) {
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// Maintain a minimum block width, split negative spacing between left
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// and right edge.
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totalNegativeSpacing = this.width - minBlockWidth;
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leftNegPadding = totalNegativeSpacing / 2;
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rightNegPadding = totalNegativeSpacing / 2;
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}
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// Add a negative spacer on the start and end of the block.
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row.elements.unshift(new InRowSpacer(this.constants_, -leftNegPadding));
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row.elements.push(new InRowSpacer(this.constants_, -rightNegPadding));
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}
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if (totalNegativeSpacing) {
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this.width -= totalNegativeSpacing;
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this.widthWithChildren -= totalNegativeSpacing;
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this.rightSide.xPos -= totalNegativeSpacing;
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for (let i = 0; i < this.rows.length; i++) {
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const row = this.rows[i];
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if (Types.isTopOrBottomRow(row)) {
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row.elements[1].width -= totalNegativeSpacing;
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row.elements[1].widthWithConnectedBlocks -= totalNegativeSpacing;
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}
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row.width -= totalNegativeSpacing;
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row.widthWithConnectedBlocks -= totalNegativeSpacing;
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}
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}
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};
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/**
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* Calculate the spacing to reduce the left and right edges by based on the
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* outer and inner connection shape.
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* @param {Measurable} elem The first or last element on
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* a block.
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* @return {number} The amount of spacing to reduce the first or last spacer.
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* @protected
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*/
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RenderInfo.prototype.getNegativeSpacing_ = function(elem) {
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if (!elem) {
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return 0;
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}
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const connectionWidth = this.outputConnection.width;
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const outerShape = this.outputConnection.shape.type;
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const constants =
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/** @type {!ConstantProvider} */ (this.constants_);
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if (this.isMultiRow && this.inputRows.length > 1) {
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switch (outerShape) {
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case constants.SHAPES.ROUND: {
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// Special case for multi-row round reporter blocks.
|
|
const maxWidth = this.constants_.MAX_DYNAMIC_CONNECTION_SHAPE_WIDTH;
|
|
const width = this.height / 2 > maxWidth ? maxWidth : this.height / 2;
|
|
const topPadding = this.constants_.SMALL_PADDING;
|
|
const roundPadding =
|
|
width * (1 - Math.sin(Math.acos((width - topPadding) / width)));
|
|
return connectionWidth - roundPadding;
|
|
}
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
if (Types.isInlineInput(elem)) {
|
|
const connectedBlock = elem.connectedBlock;
|
|
const innerShape = connectedBlock ?
|
|
connectedBlock.pathObject.outputShapeType :
|
|
elem.shape.type;
|
|
// Special case for value to stack / value to statement blocks.
|
|
if (connectedBlock && connectedBlock.outputConnection &&
|
|
(connectedBlock.statementInputCount || connectedBlock.nextConnection)) {
|
|
return 0;
|
|
}
|
|
// Special case for hexagonal output.
|
|
if (outerShape === constants.SHAPES.HEXAGONAL &&
|
|
outerShape !== innerShape) {
|
|
return 0;
|
|
}
|
|
return connectionWidth -
|
|
this.constants_.SHAPE_IN_SHAPE_PADDING[outerShape][innerShape];
|
|
} else if (Types.isField(elem)) {
|
|
// Special case for text inputs.
|
|
if (outerShape === constants.SHAPES.ROUND &&
|
|
elem.field instanceof FieldTextInput) {
|
|
return connectionWidth - (2.75 * constants.GRID_UNIT);
|
|
}
|
|
return connectionWidth -
|
|
this.constants_.SHAPE_IN_SHAPE_PADDING[outerShape][0];
|
|
} else if (Types.isIcon(elem)) {
|
|
return this.constants_.SMALL_PADDING;
|
|
}
|
|
return 0;
|
|
};
|
|
|
|
/**
|
|
* Finalize vertical alignment of rows on a block. In particular, reduce the
|
|
* implicit spacing when a non-shadow block is connected to any of an input
|
|
* row's inline inputs.
|
|
* @protected
|
|
*/
|
|
RenderInfo.prototype.finalizeVerticalAlignment_ = function() {
|
|
if (this.outputConnection) {
|
|
return;
|
|
}
|
|
// Run through every input row on the block and only apply tight nesting logic
|
|
// to input rows that have a prev and next notch.
|
|
for (let i = 2; i < this.rows.length - 1; i += 2) {
|
|
const prevSpacer = this.rows[i - 1];
|
|
const row = this.rows[i];
|
|
const nextSpacer = this.rows[i + 1];
|
|
|
|
const firstRow = i === 2;
|
|
const hasPrevNotch = firstRow ? !!this.topRow.hasPreviousConnection :
|
|
!!prevSpacer.followsStatement;
|
|
const hasNextNotch = i + 2 >= this.rows.length - 1 ?
|
|
!!this.bottomRow.hasNextConnection :
|
|
!!nextSpacer.precedesStatement;
|
|
|
|
if (hasPrevNotch) {
|
|
const hasSingleTextOrImageField = row.elements.length === 3 &&
|
|
(row.elements[1].field instanceof FieldLabel ||
|
|
row.elements[1].field instanceof FieldImage);
|
|
if (!firstRow && hasSingleTextOrImageField) {
|
|
// Remove some padding if we have a single image or text field.
|
|
prevSpacer.height -= this.constants_.SMALL_PADDING;
|
|
nextSpacer.height -= this.constants_.SMALL_PADDING;
|
|
row.height -= this.constants_.MEDIUM_PADDING;
|
|
} else if (!firstRow && !hasNextNotch) {
|
|
// Add a small padding so the notch doesn't clash with inputs/fields.
|
|
prevSpacer.height += this.constants_.SMALL_PADDING;
|
|
} else if (hasNextNotch) {
|
|
// Determine if the input row has non-shadow connected blocks.
|
|
let hasNonShadowConnectedBlocks = false;
|
|
const minVerticalTightNestingHeight = 40;
|
|
for (let j = 0; j < row.elements.length; j++) {
|
|
const elem = row.elements[j];
|
|
if (Types.isInlineInput(elem) && elem.connectedBlock &&
|
|
!elem.connectedBlock.isShadow() &&
|
|
elem.connectedBlock.getHeightWidth().height >=
|
|
minVerticalTightNestingHeight) {
|
|
hasNonShadowConnectedBlocks = true;
|
|
break;
|
|
}
|
|
}
|
|
// Apply tight-nesting if we have both a prev and next notch and the
|
|
// block has non-shadow connected blocks.
|
|
if (hasNonShadowConnectedBlocks) {
|
|
prevSpacer.height -= this.constants_.SMALL_PADDING;
|
|
nextSpacer.height -= this.constants_.SMALL_PADDING;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
RenderInfo.prototype.finalize_ = function() {
|
|
this.finalizeOutputConnection_();
|
|
this.finalizeHorizontalAlignment_();
|
|
this.finalizeVerticalAlignment_();
|
|
RenderInfo.superClass_.finalize_.call(this);
|
|
|
|
if (this.rightSide) {
|
|
this.widthWithChildren += this.rightSide.width;
|
|
}
|
|
};
|
|
|
|
exports.RenderInfo = RenderInfo;
|