mirror of
https://github.com/google/blockly.git
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84 lines
2.2 KiB
JavaScript
84 lines
2.2 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 Namespace for block rendering functionality.
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* @author fenichel@google.com (Rachel Fenichel)
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*/
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'use strict';
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/**
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* The top level namespace for block rendering.
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* @namespace Blockly.blockRendering
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*/
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goog.provide('Blockly.blockRendering');
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goog.require('Blockly.registry');
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goog.requireType('Blockly.blockRendering.Renderer');
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goog.requireType('Blockly.Theme');
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/**
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* Whether or not the debugger is turned on.
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* @type {boolean}
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* @package
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*/
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Blockly.blockRendering.useDebugger = false;
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/**
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* Registers a new renderer.
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* @param {string} name The name of the renderer.
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* @param {!Function} rendererClass The new renderer class
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* to register.
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* @throws {Error} if a renderer with the same name has already been registered.
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*/
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Blockly.blockRendering.register = function(name, rendererClass) {
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Blockly.registry.register(Blockly.registry.Type.RENDERER, name,
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rendererClass);
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};
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/**
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* Unregisters the renderer registered with the given name.
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* @param {string} name The name of the renderer.
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*/
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Blockly.blockRendering.unregister = function(name) {
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Blockly.registry.unregister(Blockly.registry.Type.RENDERER, name);
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};
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/**
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* Turn on the blocks debugger.
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* @package
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*/
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Blockly.blockRendering.startDebugger = function() {
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Blockly.blockRendering.useDebugger = true;
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};
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/**
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* Turn off the blocks debugger.
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* @package
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*/
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Blockly.blockRendering.stopDebugger = function() {
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Blockly.blockRendering.useDebugger = false;
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};
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/**
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* Initialize anything needed for rendering (constants, etc).
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* @param {!string} name Name of the renderer to initialize.
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* @param {!Blockly.Theme} theme The workspace theme object.
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* @param {Object=} opt_rendererOverrides Rendering constant overrides.
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* @return {!Blockly.blockRendering.Renderer} The new instance of a renderer.
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* Already initialized.
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* @package
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*/
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Blockly.blockRendering.init = function(name, theme, opt_rendererOverrides) {
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var rendererClass = Blockly.registry.getClass(
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Blockly.registry.Type.RENDERER, name);
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var renderer = new rendererClass(name);
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renderer.init(theme, opt_rendererOverrides);
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return renderer;
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};
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