Commit d93f51f9 authored by Boxiang Sun's avatar Boxiang Sun

erp5_notebook: Load pyodide in jsmd eval file to handle python setction.

Support standard pyodide notebook grammar
Simply ignore the section "meta" and "plugin", support "%%code {"language" : "py"}"
instead "%% py"
We don't use pyodide.js anymore
erp5_notebook: Add iodide.output
Display the JS code reuslt if there have
parent e643c3c8
/*global window, console, RSVP, document, URL, eval, XMLHttpRequest, marked */ /*global window, console, RSVP, document, URL, eval, XMLHttpRequest, marked, pyodide, WebAssembly, fetch*/
/*jslint nomen: true, indent: 2, maxerr: 3 */ /*jslint nomen: true, indent: 2, maxerr: 3 */
(function (window) { (function (window) {
"use strict"; "use strict";
function sideEffectDiv(sideEffectClass, reportSideEffect) {
// appends a side effect div to the side effect area
var div = document.createElement("div");
div.setAttribute("class", sideEffectClass);
if (reportSideEffect === undefined) {
div.setAttribute("style", "display:");
}
document.body.appendChild(div);
return div;
}
var IODide = function createIODide() { var IODide = function createIODide() {
return; var iodide = {
output: {
text: function (s, reportSideEffect) {
var i, div, line_list;
console.log("Inside output.text");
console.log(s);
line_list = s.toString().split("\n");
for (i = 0; i < line_list.length; i += 1) {
div = sideEffectDiv("side-effect-print", reportSideEffect);
div.innerText = line_list[i];
}
},
element: function (nodeType, reportSideEffect) {
var div, node;
div = sideEffectDiv("side-effect-element", reportSideEffect);
node = document.createElement(nodeType);
div.append(node);
return node;
}
}
};
return iodide;
}, },
JSMDCell = function createJSMDCell(type, line_list) { JSMDCell = function createJSMDCell(type, line_list) {
this._type = type; this._type = type;
this._line_list = line_list; this._line_list = line_list;
}, },
split_line_regex = /[\r\n|\n|\r]/, split_line_regex = /[\r\n|\n|\r]/,
cell_type_regexp = /^\%\% (\w+)$/; cell_type_regexp = /^\%\% (\w+)\b/,
language_type_regexp = /\{[\S\s]+\}/,
is_pyodide_loaded = false,
Module = {},
packages,
loadedPackages = [],
// Regexp for validating package name and URI
package_name_regexp = '[a-z0-9_][a-z0-9_\-]*',
package_uri_regexp = new RegExp('^https?://.*?(' + package_name_regexp + ').js$', 'i');
package_name_regexp = new RegExp('^' + package_name_regexp + '$', 'i');
window.iodide = new IODide(); window.iodide = new IODide();
IODide.prototype.addOutputHandler = function () { IODide.prototype.addOutputHandler = function () {
...@@ -62,6 +103,108 @@ ...@@ -62,6 +103,108 @@
}); });
} }
// Pyodide package loading
function _uri_to_package_name(package_uri) {
// Generate a unique package name from URI
if (package_name_regexp.test(package_uri)) {
return package_uri;
}
if (package_uri_regexp.test(package_uri)) {
var match = package_uri_regexp.exec(package_uri);
// Get the regexp group corresponding to the package name
return match[1];
}
return null;
}
function pyodideLoadPackage(names) {
// DFS to find all dependencies of the requested packages
var queue, toLoad, package_uri, package_name, k,
subpackage, promise, packageList, script;
packages = window.pyodide.packages.dependencies;
queue = new Array(names);
toLoad = [];
while (queue.length) {
package_uri = queue.pop();
package_name = _uri_to_package_name(package_uri);
if (package_name === null) {
throw new Error("Invalid package name or URI " + package_uri);
}
if (package_name === package_uri) {
package_uri = 'default channel';
}
console.log("Loading " + package_name + " from " + package_uri);
console.log("Loaded packages");
console.log(loadedPackages);
if (package_name in loadedPackages) {
if (package_uri !== loadedPackages[package_name]) {
throw new Error(
"URI mismatch, attempting to load package " +
package_name + " from " + package_uri + " while it is already " +
"loaded from " + loadedPackages[package_name] + " ! "
);
}
} else {
toLoad[package_name] = package_uri;
if (packages.hasOwnProperty(package_name)) {
for (k in packages[package_name]) {
subpackage = packages[package_name][k];
if (!(subpackage in loadedPackages) && !(subpackage in toLoad)) {
queue.push(subpackage);
}
}
} else {
console.log("Unknown package " + package_name);
}
}
}
promise = new RSVP.Promise(function (resolve, reject) {
if (Object.keys(toLoad).length === 0) {
resolve('No new packages to load');
}
pyodide.monitorRunDependencies = function (n) {
if (n === 0) {
for (package_name in toLoad) {
loadedPackages[package_name] = toLoad[package_name];
}
delete pyodide.monitorRunDependencies;
packageList = Array.from(Object.keys(toLoad)).join(', ');
resolve("Loaded " + packageList);
}
};
function script_reject(e) {
reject(e);
}
for (package_name in toLoad) {
script = document.createElement('script');
package_uri = toLoad[package_name];
if (package_uri === 'default channel') {
script.src = package_name + ".js";
} else {
script.src = package_uri;
}
script.onerror = script_reject;
document.body.appendChild(script);
}
// We have to invalidate Python's import caches, or it won't
// see the new files. This is done here so it happens in parallel
// with the fetching over the network.
window.pyodide.runPython('import importlib as _importlib\n' +
'_importlib.invalidate_caches()\n');
});
return promise;
}
function parseJSMDCellList(jsmd) { function parseJSMDCellList(jsmd) {
// Split the text into a list of Iodide cells // Split the text into a list of Iodide cells
var line_list = jsmd.split(split_line_regex), var line_list = jsmd.split(split_line_regex),
...@@ -69,6 +212,7 @@ ...@@ -69,6 +212,7 @@
len = line_list.length, len = line_list.length,
current_line, current_line,
current_type, current_type,
language_type,
current_text_list, current_text_list,
next_type, next_type,
cell_list = []; cell_list = [];
...@@ -85,6 +229,11 @@ ...@@ -85,6 +229,11 @@
next_type = current_line.match(cell_type_regexp); next_type = current_line.match(cell_type_regexp);
if (next_type) { if (next_type) {
// New type detexted // New type detexted
if (next_type[1] === 'code') {
// language detected
language_type = JSON.parse(current_line.match(language_type_regexp)).language;
next_type[1] = next_type[1] + '_' + language_type;
}
pushNewCell(); pushNewCell();
current_type = next_type; current_type = next_type;
current_text_list = []; current_text_list = [];
...@@ -106,9 +255,13 @@ ...@@ -106,9 +255,13 @@
var text = line_list.join('\n'), var text = line_list.join('\n'),
pre, pre,
br, br,
code; code,
result;
try { try {
return eval.call(window, text); result = eval.call(window, text);
renderCodeblock(result);
return result;
} catch (e) { } catch (e) {
console.error(e); console.error(e);
pre = document.createElement('pre'); pre = document.createElement('pre');
...@@ -253,12 +406,91 @@ ...@@ -253,12 +406,91 @@
}); });
} }
function loadPyodide(info, receiveInstance) {
var queue = new RSVP.Queue();
queue.push(function () {
return WebAssembly.compileStreaming(fetch("pyodide.asm.wasm"));
})
.push(function (module) {
return WebAssembly.instantiate(module, info);
})
.push(function (instance) {
return receiveInstance(instance);
});
return queue;
}
function renderCodeblock(result_text) {
var div = document.createElement('div'),
pre = document.createElement('pre'),
result = document.createElement('code');
div.style.border = '1px solid #C3CCD0';
div.style.margin = '40px 10px';
div.style.paddingLeft = '10px';
if (result_text !== undefined) {
result.innerHTML = result_text;
pre.appendChild(result);
div.appendChild(pre);
document.body.appendChild(div);
}
}
function executePyCell(line_list) {
var result, code_text = line_list.join('\n');
result = pyodide.runPython(code_text);
renderCodeblock(result);
}
function pyodideSetting() {
window.pyodide = pyodide(Module);
window.pyodide.loadPackage = pyodideLoadPackage;
var defer = RSVP.defer(), promise = defer.promise;
Module.postRun = defer.resolve;
promise.then(function () {
console.log("postRun get called");
delete window.Module;
});
return defer.promise;
}
function initPyodide() {
var queue = new RSVP.Queue();
queue.push(function () {
Module.instantiateWasm = loadPyodide;
window.Module = Module;
})
.push(function () {
return loadJSResource('pyodide.asm.data.js');
})
.push(function () {
return loadJSResource('pyodide.asm.js');
})
.push(function () {
return pyodideSetting();
})
.push(function () {
return fetch('packages.json');
})
.push(function (response) {
return response.json();
})
.push(function (json) {
window.pyodide.packages = json;
return;
});
return queue;
}
function executeCell(cell) { function executeCell(cell) {
if (cell._type === 'raw') { if (['raw', 'meta', 'plugin'].indexOf(cell._type) !== -1) {
// Do nothing... // Do nothing...
return; return;
} }
if (cell._type === 'js') { if (cell._type === 'js' || cell._type === 'code_js') {
return executeJSCell(cell._line_list); return executeJSCell(cell._line_list);
} }
if (cell._type === 'resource') { if (cell._type === 'resource') {
...@@ -273,6 +505,29 @@ ...@@ -273,6 +505,29 @@
if (cell._type === 'css') { if (cell._type === 'css') {
return executeCssCell(cell._line_list); return executeCssCell(cell._line_list);
} }
if (cell._type === 'code_py') {
if (cell._line_list.length === 0) {
// empty block, do nothing.
return;
}
var queue = new RSVP.Queue();
if (!is_pyodide_loaded) {
console.log("Loading pyodide");
queue.push(function () {
return initPyodide();
})
.push(function () {
return pyodideLoadPackage('matplotlib');
});
is_pyodide_loaded = true;
}
queue.push(function () {
return executePyCell(cell._line_list);
});
return queue;
}
return executeUnknownCellType(cell); return executeUnknownCellType(cell);
} }
......
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