我已经在“blockly”中实现了这个演示，我也想在 Angular 中实现它。我一直在阅读官方文档，但没有找到太多关于此的内容，我也没有太多 Angular 经验。因此，如果您能帮助我，我将不胜感激。
下面是演示代码。
https://developers.google.com/blockly/guides/overview
//Custom block
Blockly.Blocks['login'] = {
init: function () {
this.appendDummyInput()
.appendField('Login')
.setAlign(Blockly.ALIGN_CENTRE);
this.appendDummyInput()
.appendField('user')
.appendField(new Blockly.FieldTextInput(''), 'user');
this.appendDummyInput()
.appendField('password')
.appendField(new Blockly.FieldTextInput(''), 'pass');
this.appendDummyInput()
.appendField('url')
.appendField(new Blockly.FieldTextInput(''), 'url');
this.setInputsInline(false);
this.setNextStatement(true, null);
this.setPreviousStatement(true, null);
this.setColour(230);
this.setTooltip('Login into the obtained page');
this.setHelpUrl('');
},
};
Blockly.JavaScript['login'] = function (block) {
let user = block.getFieldValue('user');
let pass = block.getFieldValue('pass');
let url = block.getFieldValue('url');
let code;
if (user.length == 0 || /^\s+$/.test(user) ||
pass.length == 0 || /^\s+$/.test(pass) ||
url.length == 0 || /^\s+$/.test(url)) {
code = 'window.alert("All fields are required!!!");\n';
} else {
code = `window.alert("` + user + ` ` + pass + ` ` + url + `");
window.open("`+url+`","_blank");\n`
}
return code;
};
//--------------------------------------------------
let workspacePlayground = Blockly.inject('blocklyDiv', {
toolbox: document.getElementById('toolbox'),
zoom:
{
controls: true,
wheel: true,
startScale: 1.0,
maxScale: 2,
minScale: 0.5,
scaleSpeed: 1.2
}
});
function UpdateFunction(event) {
let code = Blockly.JavaScript.workspaceToCode(workspacePlayground);
document.getElementById('code').innerHTML = code
}
workspacePlayground.addChangeListener(UpdateFunction);
// save blocks
function saveWorkspace() {
let xml = Blockly.Xml.workspaceToDom(Blockly.mainWorkspace);
let domToPretty = Blockly.Xml.domToPrettyText(xml);
window.localStorage.setItem("myProgram", domToPretty);
}
// restore blocks
function restoreWorkspace() {
let program = window.localStorage.getItem("myProgram");
Blockly.mainWorkspace.clear();
let textToDom = Blockly.Xml.textToDom(program);
Blockly.Xml.domToWorkspace(Blockly.mainWorkspace, textToDom);
}
// delete blocks
function deleteWorkspace() {
window.localStorage.clear();
}
// execute code
function execute() {
Blockly.JavaScript.addReservedWords('code');
let code = Blockly.JavaScript.workspaceToCode(workspacePlayground);
try {
eval(code);
} catch (e) {
alert(e);
}
}.blockly-container {
height: 60vh;
width: 100%;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script src="https://unpkg.com/google-blockly@1.0.0/blockly_compressed.js"></script>
<script src="https://unpkg.com/google-blockly@1.0.0/javascript_compressed.js"></script>
<script src="https://unpkg.com/google-blockly@1.0.0/blocks_compressed.js"></script>
<script src="https://unpkg.com/google-blockly@1.0.0/msg/js/en.js"></script>
</head>
<body>
<div class="container py-5">
<h1 class="text-center">Blockly Test</h1>
<div class="row my-3">
<div class="col">
<div id="blocklyDiv" class="blockly-container"></div>
</div>
</div>
<div class="row my-3">
<div class="col-md-8">
<h2>Output</h2>
<pre id="code"></pre>
</div>
<div class="col-md">
<button type="button" class="btn btn-success" onclick="saveWorkspace();">Save</button>
<button type="button" class="btn btn-info" onclick="restoreWorkspace();">Restore</button>
<button type="button" class="btn btn-danger" onclick="deleteWorkspace();">Delete</button>
<button id="runButton" type="button" class="btn btn-success" onclick="execute();">Execute</button>
</div>
</div>
</div>
<xml id="toolbox" style="display: none">
<category name="Variables" custom="VARIABLE" colour="330"></category>
<category name="Functions" custom="PROCEDURE" colour="330"></category>
<category name="Logic" colour="210">
<block type="controls_if"></block>
<block type="logic_compare"></block>
<block type="logic_operation"></block>
<block type="logic_boolean"></block>
</category>
<category name="Loops" colour="120">
<block type="controls_whileUntil"></block>
<block type="controls_repeat_ext"></block>
<block type="controls_for"></block>
</category>
<category name="Math" colour="230">
<block type="math_number"></block>
<block type="math_arithmetic"></block>
</category>
<category name="Functions" colour="290" custom="PROCEDURE"></category>
<category name="Text" colour="150">
<block type="text"></block>
<block type="text_print"></block>
</category>
<category name="Login" colour="300">
<block type="login"></block>
</category>
</xml>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin="anonymous"></script>
</body>
</html>