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b46a4fe286
* Google changed from an Inc to an LLC. This happened back in 2017 but we didn’t notice. Officially we should update files from Inc to LLC when they are changed as part of regular edits, but this is a nightmare to remember for the next decade. * Remove project description/titles from licenses This is no longer part of Google’s header requirements. Our existing descriptions were useless (“Visual Blocks Editor”) or grossly obselete (“Visual Blocks Language”). * License no longer requires URL. * Fix license regexps.
135 lines
4.0 KiB
JavaScript
135 lines
4.0 KiB
JavaScript
/**
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* @license
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* Copyright 2019 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Geras renderer.
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* @author fenichel@google.com (Rachel Fenichel)
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*/
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'use strict';
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goog.provide('Blockly.geras.Renderer');
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goog.require('Blockly.blockRendering');
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goog.require('Blockly.blockRendering.Renderer');
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goog.require('Blockly.geras.ConstantProvider');
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goog.require('Blockly.geras.Drawer');
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goog.require('Blockly.geras.HighlightConstantProvider');
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goog.require('Blockly.geras.PathObject');
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goog.require('Blockly.geras.RenderInfo');
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goog.require('Blockly.utils.object');
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/**
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* The geras renderer.
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* @package
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* @constructor
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* @extends {Blockly.blockRendering.Renderer}
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*/
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Blockly.geras.Renderer = function() {
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Blockly.geras.Renderer.superClass_.constructor.call(this);
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/**
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* The renderer's highlight constant provider.
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* @type {Blockly.geras.HighlightConstantProvider}
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* @private
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*/
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this.highlightConstants_ = null;
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};
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Blockly.utils.object.inherits(Blockly.geras.Renderer,
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Blockly.blockRendering.Renderer);
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/**
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* Initialize the renderer. Geras has a highlight provider in addition to
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* the normal constant provider.
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* @package
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* @override
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*/
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Blockly.geras.Renderer.prototype.init = function() {
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Blockly.geras.Renderer.superClass_.init.call(this);
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this.highlightConstants_ = this.makeHighlightConstants_();
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};
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/**
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* @override
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*/
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Blockly.geras.Renderer.prototype.makeConstants_ = function() {
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return new Blockly.geras.ConstantProvider();
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};
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/**
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* Create a new instance of the renderer's render info object.
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* @param {!Blockly.BlockSvg} block The block to measure.
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* @return {!Blockly.geras.RenderInfo} The render info object.
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* @protected
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* @override
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*/
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Blockly.geras.Renderer.prototype.makeRenderInfo_ = function(block) {
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return new Blockly.geras.RenderInfo(this, block);
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};
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/**
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* Create a new instance of the renderer's drawer.
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* @param {!Blockly.BlockSvg} block The block to render.
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* @param {!Blockly.blockRendering.RenderInfo} info An object containing all
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* information needed to render this block.
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* @return {!Blockly.geras.Drawer} The drawer.
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* @protected
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* @override
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*/
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Blockly.geras.Renderer.prototype.makeDrawer_ = function(block, info) {
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return new Blockly.geras.Drawer(block,
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/** @type {!Blockly.geras.RenderInfo} */ (info));
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};
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/**
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* Create a new instance of a renderer path object.
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* @param {!SVGElement} root The root SVG element.
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* @return {!Blockly.geras.PathObject} The renderer path object.
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* @package
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* @override
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*/
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Blockly.geras.Renderer.prototype.makePathObject = function(root) {
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return new Blockly.geras.PathObject(root);
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};
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/**
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* Create a new instance of the renderer's highlight constant provider.
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* @return {!Blockly.geras.HighlightConstantProvider} The highlight constant
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* provider.
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* @protected
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*/
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Blockly.blockRendering.Renderer.prototype.makeHighlightConstants_ = function() {
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return new Blockly.geras.HighlightConstantProvider(
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/** @type {!Blockly.blockRendering.ConstantProvider} */
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(this.getConstants()));
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};
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/**
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* Get the renderer's highlight constant provider. We assume that when this is
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* called, the renderer has already been initialized.
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* @return {!Blockly.geras.HighlightConstantProvider} The highlight constant
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* provider.
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* @package
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*/
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Blockly.geras.Renderer.prototype.getHighlightConstants = function() {
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return (
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/** @type {!Blockly.geras.HighlightConstantProvider} */
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(this.highlightConstants_));
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};
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Blockly.blockRendering.register('geras', Blockly.geras.Renderer);
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