mirror of
https://github.com/jjrobots/B-ROBOT_EVO2.git
synced 2026-02-20 03:11:28 +01:00
399 lines
12 KiB
JavaScript
399 lines
12 KiB
JavaScript
/**
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* Blockly Demos: Code
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*
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* Copyright 2012 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 JavaScript for Blockly's Code demo.
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* @author fraser@google.com (Neil Fraser)
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*/
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'use strict';
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/**
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* Create a namespace for the application.
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*/
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var Code = {};
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Code.Lang = 'en';
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/**
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* Lookup for names of supported languages. Keys should be in ISO 639 format.
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*/
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Code.LANGUAGE_NAME = {
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'en': 'English',
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};
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/**
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* Blockly's main workspace.
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* @type {Blockly.WorkspaceSvg}
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*/
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Code.workspace = null;
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/**
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* Extracts a parameter from the URL.
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* If the parameter is absent default_value is returned.
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* @param {string} name The name of the parameter.
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* @param {string} defaultValue Value to return if paramater not found.
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* @return {string} The parameter value or the default value if not found.
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*/
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Code.getStringParamFromUrl = function(name, defaultValue) {
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var val = location.search.match(new RegExp('[?&]' + name + '=([^&]+)'));
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return val ? decodeURIComponent(val[1].replace(/\+/g, '%20')) : defaultValue;
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};
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/**
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* Get the language of this user from the URL.
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* @return {string} User's language.
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*/
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Code.getLang = function() {
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return 'en';
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};
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/**
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* Load blocks saved on App Engine Storage or in session/local storage.
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* @param {string} defaultXml Text representation of default blocks.
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*/
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Code.loadBlocks = function(defaultXml) {
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try {
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var loadOnce = window.sessionStorage.loadOnceBlocks;
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} catch(e) {
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// Firefox sometimes throws a SecurityError when accessing sessionStorage.
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// Restarting Firefox fixes this, so it looks like a bug.
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var loadOnce = null;
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}
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if ('BlocklyStorage' in window && window.location.hash.length > 1) {
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// An href with #key trigers an AJAX call to retrieve saved blocks.
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BlocklyStorage.retrieveXml(window.location.hash.substring(1));
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} else if (loadOnce) {
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// Language switching stores the blocks during the reload.
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delete window.sessionStorage.loadOnceBlocks;
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var xml = Blockly.Xml.textToDom(loadOnce);
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Blockly.Xml.domToWorkspace(xml, Code.workspace);
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} else if (defaultXml) {
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// Load the editor with default starting blocks.
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var xml = Blockly.Xml.textToDom(defaultXml);
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Blockly.Xml.domToWorkspace(xml, Code.workspace);
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} else if ('BlocklyStorage' in window) {
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// Restore saved blocks in a separate thread so that subsequent
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// initialization is not affected from a failed load.
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window.setTimeout(BlocklyStorage.restoreBlocks, 0);
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}
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};
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/**
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* Bind a function to a button's click event.
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* On touch enabled browsers, ontouchend is treated as equivalent to onclick.
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* @param {!Element|string} el Button element or ID thereof.
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* @param {!Function} func Event handler to bind.
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*/
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Code.bindClick = function(el, func) {
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if (typeof el == 'string') {
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el = document.getElementById(el);
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}
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el.addEventListener('click', func, true);
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el.addEventListener('touchend', func, true);
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};
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/**
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* Load the Prettify CSS and JavaScript.
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*/
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Code.importPrettify = function() {
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//<link rel="stylesheet" href="../prettify.css">
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//<script src="../prettify.js"></script>
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var link = document.createElement('link');
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link.setAttribute('rel', 'stylesheet');
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link.setAttribute('href', 'demos/prettify.css');
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document.head.appendChild(link);
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var script = document.createElement('script');
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script.setAttribute('src', 'demos/prettify.js');
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document.head.appendChild(script);
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};
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/**
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* Compute the absolute coordinates and dimensions of an HTML element.
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* @param {!Element} element Element to match.
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* @return {!Object} Contains height, width, x, and y properties.
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* @private
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*/
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Code.getBBox_ = function(element) {
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var height = element.offsetHeight;
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var width = element.offsetWidth;
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var x = 0;
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var y = 0;
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do {
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x += element.offsetLeft;
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y += element.offsetTop;
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element = element.offsetParent;
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} while (element);
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return {
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height: height,
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width: width,
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x: x,
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y: y
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};
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};
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/**
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* User's language (e.g. "en").
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* @type {string}
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*/
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Code.LANG = Code.getLang();
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/**
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* List of tab names.
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* @private
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*/
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Code.TABS_ = ['blocks', 'javascript', 'python', 'xml'];
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Code.selected = 'blocks';
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/**
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* Switch the visible pane when a tab is clicked.
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* @param {string} clickedName Name of tab clicked.
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*/
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Code.tabClick = function(clickedName) {
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// If the XML tab was open, save and render the content.
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if (document.getElementById('tab_xml').className == 'tabon') {
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var xmlTextarea = document.getElementById('content_xml');
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var xmlText = xmlTextarea.value;
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var xmlDom = null;
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try {
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xmlDom = Blockly.Xml.textToDom(xmlText);
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} catch (e) {
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var q =
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window.confirm(MSG['badXml'].replace('%1', e));
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if (!q) {
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// Leave the user on the XML tab.
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return;
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}
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}
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if (xmlDom) {
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Code.workspace.clear();
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Blockly.Xml.domToWorkspace(xmlDom, Code.workspace);
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}
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}
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if (document.getElementById('tab_blocks').className == 'tabon') {
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Code.workspace.setVisible(false);
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}
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// Deselect all tabs and hide all panes.
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for (var i = 0; i < Code.TABS_.length; i++) {
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var name = Code.TABS_[i];
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document.getElementById('tab_' + name).className = 'taboff';
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document.getElementById('content_' + name).style.visibility = 'hidden';
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}
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// Select the active tab.
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Code.selected = clickedName;
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document.getElementById('tab_' + clickedName).className = 'tabon';
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// Show the selected pane.
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document.getElementById('content_' + clickedName).style.visibility =
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'visible';
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Code.renderContent();
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if (clickedName == 'blocks') {
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Code.workspace.setVisible(true);
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}
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Blockly.svgResize(Code.workspace);
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};
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/**
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* Populate the currently selected pane with content generated from the blocks.
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*/
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Code.renderContent = function() {
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var content = document.getElementById('content_' + Code.selected);
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// Initialize the pane.
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if (content.id == 'content_xml') {
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var xmlTextarea = document.getElementById('content_xml');
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var xmlDom = Blockly.Xml.workspaceToDom(Code.workspace);
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var xmlText = Blockly.Xml.domToPrettyText(xmlDom);
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xmlTextarea.value = xmlText;
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xmlTextarea.focus();
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} else if (content.id == 'content_javascript') {
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var code = "// BROBOT code\n";
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code += "var STEPSMETER="+STEPSMETER+";\nvar STEPSTURN="+STEPSTURN+";\n\n";
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code += Blockly.JavaScript.workspaceToCode(Code.workspace);
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content.textContent = code;
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if (typeof prettyPrintOne == 'function') {
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code = content.innerHTML;
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code = prettyPrintOne(code, 'js');
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content.innerHTML = code;
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}
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} else if (content.id == 'content_python') {
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// Add python Initialization code
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code = '# PYTHON BROBOT CODE\n';
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code +='import time\nfrom BROBOT_Class import BROBOT\n';
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code += 'myRobot = BROBOT()\n\n';
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code += Blockly.Python.workspaceToCode(Code.workspace);
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content.textContent = code;
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if (typeof prettyPrintOne == 'function') {
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code = content.innerHTML;
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code = prettyPrintOne(code, 'py');
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content.innerHTML = code;
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}
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}
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};
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/**
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* Initialize Blockly. Called on page load.
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*/
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Code.init = function() {
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$( function() {
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$( "#dialog" ).dialog();
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} );
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Code.initLanguage();
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var container = document.getElementById('content_area');
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var onresize = function(e) {
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var bBox = Code.getBBox_(container);
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for (var i = 0; i < Code.TABS_.length; i++) {
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var el = document.getElementById('content_' + Code.TABS_[i]);
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el.style.top = bBox.y + 'px';
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el.style.left = bBox.x + 'px';
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// Height and width need to be set, read back, then set again to
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// compensate for scrollbars.
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el.style.height = bBox.height + 'px';
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el.style.height = (2 * bBox.height - el.offsetHeight) + 'px';
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el.style.width = bBox.width + 'px';
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el.style.width = (2 * bBox.width - el.offsetWidth) + 'px';
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}
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// Make the 'Blocks' tab line up with the toolbox.
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if (Code.workspace && Code.workspace.toolbox_.width) {
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document.getElementById('tab_blocks').style.minWidth =
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(Code.workspace.toolbox_.width - 38) + 'px';
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// Account for the 19 pixel margin and on each side.
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}
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};
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window.addEventListener('resize', onresize, false);
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// Interpolate translated messages into toolbox.
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var toolboxText = document.getElementById('toolbox').outerHTML;
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toolboxText = toolboxText.replace(/{(\w+)}/g,
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function(m, p1) {return MSG[p1]});
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var toolboxXml = Blockly.Xml.textToDom(toolboxText);
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Code.workspace = Blockly.inject('content_blocks',
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{grid:
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{spacing: 25,
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length: 3,
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colour: '#ccc',
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snap: true},
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media: 'media/',
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toolbox: toolboxXml,
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zoom:
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{controls: true,
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wheel: true}
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});
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// Add to reserved word list: Local variables in execution environment (runJS)
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// and the infinite loop detection function.
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// Blockly.JavaScript.addReservedWords('code,timeouts,checkTimeout');
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Code.loadBlocks('');
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if ('BlocklyStorage' in window) {
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// Hook a save function onto unload.
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BlocklyStorage.backupOnUnload(Code.workspace);
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}
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Code.tabClick(Code.selected);
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Code.bindClick('trashButton',
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function() {Code.discard(); Code.renderContent();});
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Code.bindClick('runButton', Code.runJS);
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// Disable the link button if page isn't backed by App Engine storage.
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var linkButton = document.getElementById('linkButton');
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if ('BlocklyStorage' in window) {
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BlocklyStorage['HTTPREQUEST_ERROR'] = MSG['httpRequestError'];
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BlocklyStorage['LINK_ALERT'] = MSG['linkAlert'];
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BlocklyStorage['HASH_ERROR'] = MSG['hashError'];
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BlocklyStorage['XML_ERROR'] = MSG['xmlError'];
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Code.bindClick(linkButton,
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function() {BlocklyStorage.link(Code.workspace);});
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} else if (linkButton) {
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linkButton.className = 'disabled';
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}
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for (var i = 0; i < Code.TABS_.length; i++) {
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var name = Code.TABS_[i];
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Code.bindClick('tab_' + name,
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function(name_) {return function() {Code.tabClick(name_);};}(name));
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}
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onresize();
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Blockly.svgResize(Code.workspace);
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// Lazy-load the syntax-highlighting.
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window.setTimeout(Code.importPrettify, 1);
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};
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/**
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* Initialize the page language.
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*/
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Code.initLanguage = function() {
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document.head.parentElement.setAttribute('lang', 'en');
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// Inject language strings.
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document.title += ' ' + 'title';
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document.getElementById('tab_blocks').textContent = 'blocks';
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document.getElementById('linkButton').title = 'link';
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document.getElementById('runButton').title = 'run';
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document.getElementById('trashButton').title = 'trash';
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};
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/**
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* Execute the user's code.
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* Just a quick and dirty eval. Catch infinite loops.
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*/
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Code.runJS = function() {
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console.log('run code...');
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Blockly.JavaScript.INFINITE_LOOP_TRAP = ' checkTimeout();\n';
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var timeouts = 0;
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var checkTimeout = function() {
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if (timeouts++ > 1000000) {
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throw MSG['timeout'];
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}
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};
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var code = Blockly.JavaScript.workspaceToCode(Code.workspace);
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Blockly.JavaScript.INFINITE_LOOP_TRAP = null;
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console.log(code);
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eval(code);
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//try {
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// eval(code);
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//} catch (e) {
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// console.log('Code error...');
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//alert(MSG['badCode'].replace('%1', e));
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//}
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};
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/**
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* Discard all blocks from the workspace.
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*/
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Code.discard = function() {
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var count = Code.workspace.getAllBlocks().length;
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if (count < 2 ||
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window.confirm(Blockly.Msg.DELETE_ALL_BLOCKS.replace('%1', count))) {
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Code.workspace.clear();
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if (window.location.hash) {
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window.location.hash = '';
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}
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}
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};
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window.addEventListener('load', Code.init);
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