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fb020f1c06
Refactor of interpreter demo * Renamed demos/interpreter/index.html as demos/interpreter/step-execution.html (including redirect), and added demos/interpreter/async-execution.html. * Refactored code to automatically generate/parse the blocks, eliminating the need for a "Parse JavaScript" button. Code is still shown in alert upon stepping to the first statement. Print statements now write to output <textarea> instead of modal dialogs.
67 lines
2.0 KiB
JavaScript
67 lines
2.0 KiB
JavaScript
/**
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* @license
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* Visual Blocks Editor
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*
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* Copyright 2017 Google Inc.
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* https://developers.google.com/blockly/
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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 Example "wait" block that will pause the interpreter for a
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* number of seconds. Because wait is a blocking behavior, such blocks will
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* only work in interpreted environments.
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*
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* See https://neil.fraser.name/software/JS-Interpreter/docs.html
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*/
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Blockly.defineBlocksWithJsonArray([{
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"type": "wait_seconds",
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"message0": " wait %1 seconds",
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"args0": [{
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"type": "field_number",
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"name": "SECONDS",
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"min": 0,
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"max": 600,
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"value": 1
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}],
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"previousStatement": null,
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"nextStatement": null,
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"colour": "%{BKY_LOOPS_HUE}"
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}]);
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/**
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* Generator for wait block creates call to new method
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* <code>waitForSeconds()</code>.
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*/
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Blockly.JavaScript['wait_seconds'] = function(block) {
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var seconds = Number(block.getFieldValue('SECONDS'));
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var code = 'waitForSeconds(' + seconds + ');\n';
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return code;
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};
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/**
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* Register the interpreter asynchronous function
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* <code>waitForSeconds()</code>.
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*/
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function initInterpreterWaitForSeconds(interpreter, scope) {
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// Ensure function name does not conflict with variable names.
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Blockly.JavaScript.addReservedWords('waitForSeconds');
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var wrapper = interpreter.createAsyncFunction(
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function(timeInSeconds, callback) {
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// Delay the call to the callback.
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setTimeout(callback, timeInSeconds * 1000);
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});
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interpreter.setProperty(scope, 'waitForSeconds', wrapper);
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} |