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98 lines
2.7 KiB
JavaScript
98 lines
2.7 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 An object that owns a block's rendering SVG elements.
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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.blockRendering.IPathObject');
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goog.provide('Blockly.blockRendering.PathObject');
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goog.require('Blockly.utils.dom');
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/**
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* An interface for a block's path object.
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* @param {!SVGElement} _root The root SVG element.
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* @interface
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*/
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Blockly.blockRendering.IPathObject = function(_root) {};
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/**
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* An object that handles creating and setting each of the SVG elements
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* used by the renderer.
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* @param {!SVGElement} root The root SVG element.
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* @constructor
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* @implements {Blockly.blockRendering.IPathObject}
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* @package
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*/
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Blockly.blockRendering.PathObject = function(root) {
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this.svgRoot = root;
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/**
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* The primary path of the block.
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* @type {SVGElement}
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* @package
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*/
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this.svgPath = Blockly.utils.dom.createSvgElement('path',
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{'class': 'blocklyPath'}, this.svgRoot);
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// The light and dark paths need to exist (for now) because there is colouring
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// code in block_svg that depends on them. But we will always set them to
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// display: none, and eventually we want to remove them entirely.
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/**
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* The light path of the block.
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* @type {SVGElement}
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* @package
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*/
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this.svgPathLight = Blockly.utils.dom.createSvgElement('path',
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{'class': 'blocklyPathLight'}, this.svgRoot);
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/**
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* The dark path of the block.
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* @type {SVGElement}
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* @package
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*/
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this.svgPathDark = Blockly.utils.dom.createSvgElement('path',
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{'class': 'blocklyPathDark', 'transform': 'translate(1,1)'},
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this.svgRoot);
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};
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/**
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* Set the path generated by the renderer onto the respective SVG element.
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* @param {string} pathString The path.
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* @package
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*/
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Blockly.blockRendering.PathObject.prototype.setPaths = function(pathString) {
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this.svgPath.setAttribute('d', pathString);
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this.svgPathLight.style.display = 'none';
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this.svgPathDark.style.display = 'none';
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};
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/**
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* Flip the SVG paths in RTL.
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* @package
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*/
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Blockly.blockRendering.PathObject.prototype.flipRTL = function() {
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// Mirror the block's path.
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this.svgPath.setAttribute('transform', 'scale(-1 1)');
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};
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