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934 lines (855 loc) · 39.2 KB
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fetch('https://pytml.vercel.app/api/count', {
cache: 'no-store',
referrerPolicy: 'origin'
})
.then(r => r.json())
.then(data => console.log('Pytml loaded:', data.message, 'times'))
.catch(() => {});
/*
* Pytml 2.5.1
* Python + HTML, powered by Pyodide.
*
* Pytml 2.5 includes a lightweight inline UI preprocessor for <pyN> blocks.
* The full document/language compiler remains planned for v3.0.
*/
(function (global) {
'use strict';
const VERSION = '2.5.1';
const PYODIDE_VERSION = '314.0.7';
const PYODIDE_INDEX = `https://cdn.jsdelivr.net/pyodide/v${PYODIDE_VERSION}/full/`;
const PYODIDE_SCRIPT = `${PYODIDE_INDEX}pyodide.js`;
// file:// is supported for inline Python. Pyodide itself stays on the HTTPS CDN.
const IS_FILE_PROTOCOL = typeof location !== 'undefined' && location.protocol === 'file:';
const PY_BLOCK = /^py(?:\d+)?$/i;
// --- Network helpers. Pyodide is loaded only when a Python block is present. ---
let _pyodideScriptPromise = null;
function preconnect() {
for (const [rel, href] of [
['preconnect', 'https://cdn.jsdelivr.net'],
['dns-prefetch', 'https://cdn.jsdelivr.net'],
]) {
const link = document.createElement('link');
link.rel = rel;
link.href = href;
if (rel === 'preconnect') link.crossOrigin = 'anonymous';
document.head.appendChild(link);
}
}
function preloadPyodideScript() {
if (_pyodideScriptPromise) return _pyodideScriptPromise;
_pyodideScriptPromise = new Promise((resolve, reject) => {
if (typeof global.loadPyodide === 'function') return resolve();
const existing = document.querySelector(`script[src="${PYODIDE_SCRIPT}"]`);
if (existing) {
existing.addEventListener('load', resolve, { once: true });
existing.addEventListener('error', () => reject(new Error(`Failed to load ${PYODIDE_SCRIPT}`)), { once: true });
return;
}
const script = document.createElement('script');
script.src = PYODIDE_SCRIPT;
script.async = true;
script.crossOrigin = 'anonymous';
script.onload = resolve;
script.onerror = () => reject(new Error(`Failed to load ${PYODIDE_SCRIPT}`));
document.head.appendChild(script);
});
return _pyodideScriptPromise;
}
// --- Boot lock: interactive elements are visible but inert until Python is ready ---
function installBootState() {
document.documentElement.classList.add('pytml-booting');
const style = document.createElement('style');
style.id = 'pytml-boot-style';
style.textContent = `
/* Page paints normally, but nothing is clickable until Python is up */
html.pytml-booting button,
html.pytml-booting input,
html.pytml-booting select,
html.pytml-booting textarea,
html.pytml-booting a[href],
html.pytml-booting [role="button"],
html.pytml-booting [contenteditable="true"] {
pointer-events: none !important;
opacity: 0.5;
cursor: not-allowed !important;
user-select: none;
transition: opacity 0.2s ease;
}
/* Small fixed pill at the top so users know why nothing is clickable */
.pytml-boot-pill {
position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
display: flex; align-items: center; gap: 8px;
background: rgba(10,14,39,0.95); color: #c8cdda;
border: 1px solid rgba(102,126,234,0.4);
border-radius: 999px; padding: 8px 16px;
font: 13px system-ui, -apple-system, sans-serif;
z-index: 2147483647;
box-shadow: 0 4px 20px rgba(0,0,0,0.35);
backdrop-filter: blur(6px);
}
.pytml-boot-pill.pytml-boot-error {
border-color: rgba(255,80,120,0.5);
color: #ff8aa8;
}
.pytml-boot-spinner {
width: 14px; height: 14px; flex: 0 0 14px;
border-radius: 50%;
border: 2px solid rgba(102,126,234,0.25);
border-top-color: #3b82f6;
animation: pytml-spin 0.8s linear infinite;
}
@keyframes pytml-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .pytml-boot-spinner { animation: none; } }
`;
(document.head || document.documentElement).appendChild(style);
const mount = () => {
if (document.querySelector('.pytml-boot-pill')) return;
const pill = document.createElement('div');
pill.className = 'pytml-boot-pill';
pill.innerHTML = `<span class="pytml-boot-spinner"></span><span>Loading Python…</span>`;
document.body.appendChild(pill);
};
if (document.body) mount();
else document.addEventListener('DOMContentLoaded', mount, { once: true });
}
function clearBootState() {
document.documentElement.classList.remove('pytml-booting');
document.documentElement.classList.add('pytml-ready');
document.querySelectorAll('.pytml-boot-pill').forEach(el => el.remove());
}
function failBootState(message) {
document.documentElement.classList.remove('pytml-booting');
document.querySelectorAll('.pytml-boot-pill').forEach(el => {
el.classList.add('pytml-boot-error');
el.innerHTML = `<span>${message || 'Python failed to load.'}</span>`;
});
}
function pageHasPythonBlocks() {
if (document.querySelector('script[type="text/python"]')) return true;
return Array.from(document.querySelectorAll('*')).some((el) => {
const tag = el.tagName?.toLowerCase?.() || '';
return PY_BLOCK.test(tag);
});
}
const DEFAULT_STYLE = `
.pytml-output{box-sizing:border-box;background:#0a0e27;color:#e7e9ee;border:1px solid rgba(102,126,234,.28);border-radius:14px;padding:16px;margin:16px 0;font:14px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;max-height:420px;overflow:auto}
.pytml-line{margin:4px 0;white-space:pre-wrap;overflow-wrap:anywhere}
.pytml-error{color:#ff8aa8;background:rgba(255,80,120,.10);padding:8px 10px;border-radius:8px}
.pytml-input-container{background:#11162f;border:1px solid rgba(102,126,234,.35);border-radius:12px;padding:14px;margin:14px 0}
.pytml-input-prompt{font:600 14px system-ui,sans-serif;color:#f2d15b;margin-bottom:8px}
.pytml-input-field{width:100%;box-sizing:border-box;padding:10px 12px;border-radius:8px;border:1px solid rgba(255,255,255,.18);background:#090c1c;color:#fff;outline:none;margin-bottom:9px}
.pytml-input-submit{border:0;border-radius:8px;padding:9px 14px;background:#3b82f6;color:#fff;font-weight:600;cursor:pointer}
.pytml-joystick{position:relative;touch-action:none;user-select:none;-webkit-user-select:none;overflow:hidden}
.pytml-joystick-knob{position:absolute;left:50%;top:50%;width:32%;aspect-ratio:1;border-radius:50%;transform:translate(-50%,-50%);background:currentColor;opacity:.78;pointer-events:none}
[data-pytml-hidden]{display:none!important}
`;
// This is the Python-side DOM/runtime module injected into Pyodide at startup.
const PYTHON_MODULE = String.raw`
import js
import asyncio
from pyodide.ffi import create_proxy
import html as _html_escape
_callbacks = []
class Event(dict):
"""Dictionary-like browser event with default-control helpers."""
def __init__(self, data, raw):
super().__init__(data)
self._raw = raw
def __getattr__(self, name):
try:
return self[name]
except KeyError as exc:
raise AttributeError(name) from exc
def prevent_default(self):
self._raw.preventDefault()
def stop_propagation(self):
self._raw.stopPropagation()
def stop_immediate_propagation(self):
self._raw.stopImmediatePropagation()
class Element:
def __init__(self, obj):
self._obj = obj
@property
def element(self): return self._obj
@property
def value(self): return self._obj.value if hasattr(self._obj, 'value') else ''
@value.setter
def value(self, value): self._obj.value = '' if value is None else str(value)
@property
def text(self): return self._obj.textContent or ''
@text.setter
def text(self, value): self._obj.textContent = '' if value is None else str(value)
@property
def html(self): return self._obj.innerHTML or ''
@html.setter
def html(self, value): self._obj.innerHTML = '' if value is None else str(value)
@property
def checked(self): return bool(getattr(self._obj, 'checked', False))
@checked.setter
def checked(self, value): self._obj.checked = bool(value)
@property
def selected(self): return bool(getattr(self._obj, 'selected', False))
@selected.setter
def selected(self, value): self._obj.selected = bool(value)
@property
def disabled(self): return bool(getattr(self._obj, 'disabled', False))
@disabled.setter
def disabled(self, value): self._obj.disabled = bool(value)
@property
def visible(self): return bool(js.pytmlInstance.element(self._obj).visible)
@visible.setter
def visible(self, value): js.pytmlInstance.element(self._obj).visible = bool(value)
@property
def id(self): return str(self._obj.id)
@property
def tag(self): return str(self._obj.tagName).lower()
@property
def placeholder(self): return getattr(self._obj, 'placeholder', '')
@placeholder.setter
def placeholder(self, value): self._obj.placeholder = str(value)
@property
def class_name(self): return str(self._obj.className)
@class_name.setter
def class_name(self, value): self._obj.className = str(value)
@property
def x(self): return float(self._obj.getBoundingClientRect().x)
@property
def y(self): return float(self._obj.getBoundingClientRect().y)
@property
def width(self): return float(self._obj.getBoundingClientRect().width)
@property
def height(self): return float(self._obj.getBoundingClientRect().height)
@property
def scroll_top(self): return float(getattr(self._obj, 'scrollTop', 0))
@scroll_top.setter
def scroll_top(self, value): self._obj.scrollTop = float(value)
@property
def scroll_left(self): return float(getattr(self._obj, 'scrollLeft', 0))
@scroll_left.setter
def scroll_left(self, value): self._obj.scrollLeft = float(value)
@property
def files(self):
files = getattr(self._obj, 'files', None)
if not files:
return []
return [{'name': f.name, 'size': int(f.size), 'type': f.type, 'last_modified': int(f.lastModified)} for f in files]
def attr(self, name): return self._obj.getAttribute(str(name))
def set_attr(self, name, value): self._obj.setAttribute(str(name), str(value))
def remove_attr(self, name): self._obj.removeAttribute(str(name))
def add_class(self, name): self._obj.classList.add(str(name))
def remove_class(self, name): self._obj.classList.remove(str(name))
def toggle_class(self, name, force=None):
if force is None:
return bool(self._obj.classList.toggle(str(name)))
return bool(self._obj.classList.toggle(str(name), bool(force)))
def has_class(self, name): return bool(self._obj.classList.contains(str(name)))
def focus(self): self._obj.focus()
def blur(self): self._obj.blur()
def click(self): self._obj.click()
def remove(self): self._obj.remove()
def clear(self): js.pytmlInstance.clear_element(self._obj)
def scroll_to(self, x=0, y=0, behavior='auto'): js.pytmlInstance.scroll_element(self._obj, x, y, behavior)
def into_view(self, **kwargs): self._obj.scrollIntoView(kwargs)
def set_style(self, name, value): self._obj.style[str(name)] = str(value)
def get_style(self, name): return str(js.pytmlInstance.get_style(self._obj, str(name)))
def emit(self, name, detail=None): js.pytmlInstance.emit(self._obj, str(name), detail or {})
def on(self, event, callback, options=None):
def handler(raw):
try:
normalized = js.pytmlInstance.api_event(raw).to_py()
result = callback(Event(normalized, raw))
if asyncio.iscoroutine(result):
asyncio.ensure_future(result)
return None
except Exception:
import traceback
js.pytmlInstance.addError(traceback.format_exc())
return None
proxy = create_proxy(handler)
self._obj.addEventListener(str(event), proxy, options)
_callbacks.append((self._obj, str(event), callback, proxy))
def off():
try:
self._obj.removeEventListener(str(event), proxy, options)
finally:
try: proxy.destroy()
except Exception: pass
try: _callbacks.remove((self._obj, str(event), callback, proxy))
except ValueError: pass
return off
def off(self, event, callback):
keep = []
for obj, ev, cb, proxy in _callbacks:
if obj is self._obj and ev == str(event) and cb is callback:
try: obj.removeEventListener(ev, proxy)
except Exception: pass
try: proxy.destroy()
except Exception: pass
else:
keep.append((obj, ev, cb, proxy))
_callbacks[:] = keep
def on_click(self, callback, options=None): return self.on('click', callback, options)
def on_input(self, callback, options=None): return self.on('input', callback, options)
def on_change(self, callback, options=None): return self.on('change', callback, options)
def on_keydown(self, callback, options=None): return self.on('keydown', callback, options)
def on_keyup(self, callback, options=None): return self.on('keyup', callback, options)
def on_scroll(self, callback, options=None): return self.on('scroll', callback, options)
def play(self): return self._obj.play()
def pause(self): return self._obj.pause()
def request_fullscreen(self): return self._obj.requestFullscreen()
def canvas_context(self, kind='2d'): return self._obj.getContext(str(kind))
class Joystick(Element):
@property
def joystick_x(self): return float(js.pytmlInstance.joystick_state(self._obj)['x'])
@property
def joystick_y(self): return float(js.pytmlInstance.joystick_state(self._obj)['y'])
@property
def magnitude(self): return float(js.pytmlInstance.joystick_state(self._obj)['magnitude'])
@property
def angle(self): return float(js.pytmlInstance.joystick_state(self._obj)['angle'])
@property
def active(self): return bool(js.pytmlInstance.joystick_state(self._obj)['active'])
def element(target): return Element(js.pytmlInstance.element(target).element)
def get(target): return element(target)
def query(selector): return element(selector)
def query_all(selector): return [Element(x) for x in js.document.querySelectorAll(str(selector))]
def joystick(target): return Joystick(js.pytmlInstance.makeJoystick(target).element)
async def sleep(ms): await js.pytmlInstance.sleep(int(ms))
def timeout(callback, ms):
from pyodide.ffi import create_proxy
return js.pytmlInstance.setTimeout(create_proxy(callback), int(ms))
def interval(callback, ms):
from pyodide.ffi import create_proxy
return js.pytmlInstance.setInterval(create_proxy(callback), int(ms))
def clear_timeout(timer_id): return js.pytmlInstance.clearTimeout(int(timer_id))
def clear_interval(timer_id): return js.pytmlInstance.clearInterval(int(timer_id))
async def clipboard_copy(text): await js.pytmlInstance.clipboard_write(str(text))
async def clipboard_read(): return await js.pytmlInstance.clipboard_read()
def alert(message): return js.pytmlInstance.alert(str(message))
def confirm(message): return bool(js.pytmlInstance.confirm(str(message)))
def download(data, filename, mime='text/plain;charset=utf-8'): return js.pytmlInstance.download(data, filename, mime)
def gamepads(): return js.pytmlInstance.gamepads()
def storage_get(key, fallback=None): return js.pytmlInstance.storage_get(key, fallback)
def storage_set(key, value): return js.pytmlInstance.storage_set(key, value)
def storage_remove(key): return js.pytmlInstance.storage_remove(key)
def escape(text):
"""Safely escape HTML characters (<, >, &) from user input."""
return _html_escape.escape(str(text))
def install(requirements, **kwargs):
import micropip
return micropip.install(requirements, **kwargs)
version = '2.5.1'
pyodide_version = '314.0.7'
def _bind_all_dom(namespace):
elements = {}
for obj in js.document.querySelectorAll('[id]'):
name = str(obj.id)
if name.isidentifier():
elements[name] = Element(obj)
if name not in namespace:
namespace[name] = elements[name]
class _Elements:
def __getattr__(self, name):
try:
return elements[name]
except KeyError as exc:
raise AttributeError(name) from exc
def __getitem__(self, name):
try:
return elements[str(name)]
except KeyError as exc:
raise KeyError(name) from exc
namespace['elements'] = _Elements()
namespace['document'] = js.document
namespace['window'] = js.window
namespace['console'] = js.console
namespace['pytml'] = __import__('pytml')
`;
function installEarlyPythonHide() {
if (typeof document === 'undefined') return;
if (document.getElementById('pytml-early-hide')) return;
const style = document.createElement('style');
style.id = 'pytml-early-hide';
style.textContent = 'py,py0,py1,py2,py3,py4,py5,py6,py7,py8,py9,py10,py11,py12,py13,py14,py15,py16,py17,py18,py19,py20,py21,py22,py23,py24,py25,py26,py27,py28,py29,py30,py31,py32,py33,py34,py35,py36,py37,py38,py39,py40,py41,py42,py43,py44,py45,py46,py47,py48,py49,py50,py51,py52,py53,py54,py55,py56,py57,py58,py59,py60,py61,py62,py63,py64,py65,py66,py67,py68,py69,py70,py71,py72,py73,py74,py75,py76,py77,py78,py79,py80,py81,py82,py83,py84,py85,py86,py87,py88,py89,py90,py91,py92,py93,py94,py95,py96,py97,py98,py99,py100 { display:none !important; }';
(document.head || document.documentElement).appendChild(style);
}
function normalizeEvent(event) {
const target = event?.currentTarget || event?.target || null;
const rect = target?.getBoundingClientRect ? target.getBoundingClientRect() : null;
const detail = event?.detail || {};
return {
type: event?.type || '',
x: Number(event?.clientX ?? detail.x ?? 0),
y: Number(event?.clientY ?? detail.y ?? 0),
dx: Number(event?.movementX ?? detail.dx ?? 0),
dy: Number(event?.movementY ?? detail.dy ?? 0),
deltaX: Number(event?.deltaX ?? 0),
deltaY: Number(event?.deltaY ?? 0),
key: event?.key || '',
code: event?.code || '',
button: Number(event?.button ?? 0),
buttons: Number(event?.buttons ?? 0),
pointerId: Number(event?.pointerId ?? 0),
pointerType: event?.pointerType || '',
value: event?.target?.value ?? '',
checked: !!event?.target?.checked,
scrollTop: Number(event?.target?.scrollTop ?? 0),
scrollLeft: Number(event?.target?.scrollLeft ?? 0),
ctrlKey: !!event?.ctrlKey,
shiftKey: !!event?.shiftKey,
altKey: !!event?.altKey,
metaKey: !!event?.metaKey,
width: Number(rect?.width ?? 0),
height: Number(rect?.height ?? 0),
joystick_x: detail.x,
joystick_y: detail.y,
magnitude: detail.magnitude,
angle: detail.angle,
active: detail.active
};
}
// Inline UI syntax supported inside <py>, <py1>, <py2>, ... blocks.
// These tags are converted to real browser elements before the Python is
// sent to Pyodide. Non-UI text nodes are preserved, including indentation.
const PY_INLINE_UI = /^(btn|input|txt)(\d+)$/i;
function copyInlineAttributes(source, target, kind) {
for (const attr of Array.from(source.attributes || [])) {
const name = attr.name.toLowerCase();
if (name === 'id') continue;
if (kind === 'txt' && name === 'type') continue;
target.setAttribute(attr.name, attr.value);
}
}
class Pytml {
constructor(options = {}) {
this.version = VERSION;
this.pyodideVersion = PYODIDE_VERSION;
this.options = {
pyodideVersion: PYODIDE_VERSION,
pyodideIndexURL: PYODIDE_INDEX,
autoOutput: options.autoOutput === true,
loadPackagesFromImports: options.loadPackagesFromImports !== false,
...options
};
this.pyodide = null;
this.outputContainer = null;
this.statusElement = null;
this.ready = false;
this.readyPromise = null;
this.programs = new Map();
this._callbackRegistry = new Map();
this._intervals = new Map();
this._timeouts = new Map();
this._joystickState = new WeakMap();
}
async start() {
if (!this.readyPromise) this.readyPromise = this._start();
return this.readyPromise;
}
async _start() {
preconnect();
installBootState();
this.installStyles();
// Always use the remote Pyodide CDN from file:// pages. This avoids
// trying to resolve Pyodide assets relative to a local file origin.
const indexURL = IS_FILE_PROTOCOL
? PYODIDE_INDEX
: this.options.pyodideIndexURL;
await this.loadPyodideScript();
this.pyodide = await global.loadPyodide({ indexURL });
global.pyodide = this.pyodide;
global.pytmlInstance = this;
global.pytml = this;
await this.installPythonModule();
await this.setupPythonEnvironment();
this.ready = true;
await this.runAllPythonScripts();
clearBootState();
document.dispatchEvent(new CustomEvent('pytml:ready', { detail: this }));
return this;
}
installStyles() {
if (document.getElementById('pytml-runtime-style')) return;
const style = document.createElement('style');
style.id = 'pytml-runtime-style';
style.textContent = DEFAULT_STYLE;
document.head.appendChild(style);
}
createOutputContainer() {
let container = document.getElementById('pytml-output');
if (!container) {
container = document.createElement('div');
container.id = 'pytml-output';
const first = this.findPythonBlocks()[0]?.element;
if (first?.parentNode) first.parentNode.insertBefore(container, first);
else document.body.insertBefore(container, document.body.firstChild);
}
container.classList.add('pytml-output');
this.outputContainer = container;
}
async loadPyodideScript() {
await preloadPyodideScript();
}
async installPythonModule() {
this.pyodide.globals.set('_pytml_module_source', PYTHON_MODULE);
await this.pyodide.runPythonAsync(`
import sys, types
_pytml_module = types.ModuleType('pytml')
exec(_pytml_module_source, _pytml_module.__dict__)
sys.modules['pytml'] = _pytml_module
`);
this.pyodide.globals.delete('_pytml_module_source');
}
async setupPythonEnvironment() {
const bootstrap = String.raw`
import sys, ast, builtins, pytml
import js
class _OutputRedirect:
def __init__(self, error=False): self.error = error
def write(self, text):
if text: js.pytmlInstance.addOutput(str(text), self.error)
def flush(self): pass
sys.stdout = _OutputRedirect(False)
async def _pytml_input(prompt=""):
return await js.pytmlInstance.getUserInput(str(prompt))
builtins.input = _pytml_input
class _InputTransformer(ast.NodeTransformer):
def visit_Call(self, node):
self.generic_visit(node)
if isinstance(node.func, ast.Name) and node.func.id == "input":
return ast.copy_location(ast.Await(value=node), node)
return node
def _pytml_transform_tree(source):
tree = ast.parse(source)
tree = _InputTransformer().visit(tree)
ast.fix_missing_locations(tree)
return tree
async def _pytml_run_source(source):
source = str(source)
tree = _pytml_transform_tree(source)
await js.pytmlInstance.prepare_python_globals()
code = compile(tree, "<pytml>", "exec", flags=ast.PyCF_ALLOW_TOP_LEVEL_AWAIT)
result = eval(code, globals(), globals())
if result is not None:
import inspect
if inspect.isawaitable(result):
await result
`;
await this.pyodide.runPythonAsync(bootstrap);
}
preprocessPythonBlock(el) {
if (el.__pytmlPreprocessed) return el.__pytmlPreprocessed;
const declarations = [];
let code = '';
const visit = (node) => {
for (const child of Array.from(node.childNodes || [])) {
if (child.nodeType === Node.TEXT_NODE) {
code += child.nodeValue || '';
continue;
}
if (child.nodeType !== Node.ELEMENT_NODE) continue;
const tag = child.tagName?.toLowerCase?.() || '';
const match = tag.match(PY_INLINE_UI);
if (match) {
declarations.push({
node: child,
kind: match[1].toLowerCase(),
id: `${match[1].toLowerCase()}${match[2]}`,
content: child.textContent || ''
});
continue;
}
// Ordinary wrapper elements contribute their text to Python source.
visit(child);
}
};
visit(el);
if (declarations.length) {
const fragment = document.createDocumentFragment();
for (const declaration of declarations) {
const { node, kind, id, content } = declaration;
const existing = document.getElementById(id);
if (existing && existing !== el && !existing.hasAttribute('data-pytml-generated')) {
throw new Error(`Pytml UI id "${id}" already exists outside its <pyN> block.`);
}
const generated = document.createElement(kind === 'btn' ? 'button' : 'input');
if (kind === 'txt' || (kind === 'input' && !node.hasAttribute('type'))) generated.type = 'text';
copyInlineAttributes(node, generated, kind);
generated.id = id;
generated.setAttribute('data-pytml-generated', '');
if (kind === 'btn') {
generated.type = node.getAttribute('type') || 'button';
generated.textContent = content;
} else if (content.trim()) {
generated.placeholder = content.trim();
}
fragment.appendChild(generated);
node.remove();
}
if (el.parentNode) el.parentNode.insertBefore(fragment, el);
}
const processed = {
code,
declarations: declarations.map(({ kind, id }) => ({ kind, id }))
};
el.__pytmlPreprocessed = processed;
return processed;
}
findPythonBlocks() {
const result = [];
document.querySelectorAll('*').forEach((el) => {
const tag = el.tagName?.toLowerCase?.() || '';
if (PY_BLOCK.test(tag)) {
el.setAttribute('data-pytml-hidden', '');
el.hidden = true;
const processed = this.preprocessPythonBlock(el);
result.push({
element: el,
id: tag,
src: el.getAttribute('src'),
code: processed.code,
ui: processed.declarations
});
}
});
document.querySelectorAll('script[type="text/python"]').forEach((el, index) => {
result.push({
element: el,
id: (el.getAttribute('data-id') || el.id || `script-${index + 1}`).toLowerCase(),
src: el.getAttribute('src'),
code: el.textContent,
ui: []
});
});
return result;
}
async runAllPythonScripts() {
for (const block of this.findPythonBlocks()) {
if (block.src) {
const resolved = new URL(block.src, document.baseURI);
if (location.protocol === 'file:' && resolved.protocol === 'file:') {
throw new Error(`Pytml cannot read a separate local Python file ("${block.src}") from file:// because browsers block local-file fetches. Use inline <py> / <pyN> code or an HTTPS src.`);
}
const response = await fetch(resolved.href, {
credentials: IS_FILE_PROTOCOL ? 'omit' : 'same-origin',
mode: 'cors'
});
if (!response.ok) throw new Error(`HTTP ${response.status} while loading ${resolved.href}`);
await this.executePythonCode(await response.text(), block.id);
} else if (block.code.trim()) {
await this.executePythonCode(block.code, block.id);
}
block.element.setAttribute('data-pytml-hidden', '');
}
}
async prepare_python_globals() {
await this.pyodide.runPythonAsync('from pytml import _bind_all_dom; _bind_all_dom(globals())');
}
async executePythonCode(source, programId = 'py') {
if (!this.ready) throw new Error('Pytml is not ready yet.');
if (this.options.loadPackagesFromImports) {
try { await this.pyodide.loadPackagesFromImports(source); } catch (_) {}
}
this.pyodide.globals.set('_pytml_source', source);
try {
await this.pyodide.runPythonAsync('await _pytml_run_source(_pytml_source)');
this.programs.set(programId, (this.programs.get(programId) || 0) + 1);
} catch (error) {
const message = error?.message || String(error);
this.addError(`Execution error in ${programId}: ${message}`);
return false;
} finally {
this.pyodide.globals.delete('_pytml_source');
}
}
element(target) {
let el = target;
if (typeof target === 'string') {
const looksLikeSelector = target.startsWith('#') || target.startsWith('.') || target.includes('[') || target.includes(' ') || target.includes(':');
el = looksLikeSelector ? document.querySelector(target) : document.getElementById(target);
}
if (!el) throw new Error(`Pytml element not found: ${target}`);
return this.makeElementProxy(el);
}
makeElementProxy(el) {
return {
element: el,
get value() { return el.value ?? ''; },
set value(v) { el.value = v == null ? '' : String(v); },
get text() { return el.textContent ?? ''; },
set text(v) { el.textContent = v == null ? '' : String(v); },
get html() { return el.innerHTML ?? ''; },
set html(v) { el.innerHTML = v == null ? '' : String(v); },
get checked() { return !!el.checked; },
set checked(v) { el.checked = !!v; },
get selected() { return !!el.selected; },
set selected(v) { el.selected = !!v; },
get disabled() { return !!el.disabled; },
set disabled(v) { el.disabled = !!v; },
get visible() { return getComputedStyle(el).display !== 'none' && getComputedStyle(el).visibility !== 'hidden'; },
set visible(v) { el.style.display = v ? '' : 'none'; },
get_style: (name) => getComputedStyle(el)[String(name)],
set_style: (name, value) => { el.style[String(name)] = String(value); },
clear: () => { while (el.firstChild) el.removeChild(el.firstChild); if ('value' in el) el.value = ''; },
scroll_to: (x, y, behavior='auto') => el.scrollTo({ left: Number(x)||0, top: Number(y)||0, behavior }),
emit: (name, detail={}) => el.dispatchEvent(new CustomEvent(String(name), { detail, bubbles:true })),
get files() { return [...(el.files || [])].map(f => ({name:f.name,size:f.size,type:f.type,last_modified:f.lastModified})); }
};
}
api_event(event) { return normalizeEvent(event); }
clear_element(el) { while (el.firstChild) el.removeChild(el.firstChild); if ('value' in el) el.value = ''; }
scroll_element(el, x=0, y=0, behavior='auto') { el.scrollTo({ left:Number(x)||0, top:Number(y)||0, behavior }); }
get_style(el, name) { return getComputedStyle(el)[name]; }
emit(el, name, detail={}) { el.dispatchEvent(new CustomEvent(name, { detail, bubbles:true })); }
sleep(ms) { return new Promise(resolve => setTimeout(resolve, Number(ms)||0)); }
bindPythonCallback(el, event, callback, options=undefined) {
if (!this._callbackRegistry.has(el)) this._callbackRegistry.set(el, new Map());
const eventMap = this._callbackRegistry.get(el);
if (!eventMap.has(event)) eventMap.set(event, []);
const proxy = this.pyodide.ffi.create_proxy((raw) => {
try { return callback(normalizeEvent(raw)); }
catch (error) { this.addError(`Event handler error: ${error.message}`); }
});
el.addEventListener(event, proxy, options);
eventMap.get(event).push({ callback, proxy });
return () => {
el.removeEventListener(event, proxy, options);
try { proxy.destroy(); } catch (_) {}
};
}
async getUserInput(prompt) {
return new Promise((resolve) => {
if (!this.outputContainer) this.createOutputContainer();
const box = document.createElement('div');
box.className = 'pytml-input-container';
const label = document.createElement('div'); label.className = 'pytml-input-prompt'; label.textContent = prompt || 'Enter value:';
const input = document.createElement('input'); input.className = 'pytml-input-field'; input.type = 'text'; input.autocomplete = 'off';
const submit = document.createElement('button'); submit.className = 'pytml-input-submit'; submit.type = 'button'; submit.textContent = 'Submit';
box.append(label, input, submit); this.outputContainer.appendChild(box);
let done = false;
const finish = () => { if (done) return; done = true; const value=input.value; box.remove(); resolve(value); };
submit.addEventListener('click', finish); input.addEventListener('keydown', e => { if (e.key === 'Enter') finish(); });
input.focus(); box.scrollIntoView({behavior:'smooth',block:'center'});
});
}
addOutput(text, isError=false) {
if (!this.outputContainer) this.createOutputContainer();
const line = document.createElement('div');
line.className = `pytml-line${isError ? ' pytml-error' : ''}`;
line.textContent = String(text);
this.outputContainer.appendChild(line);
this.outputContainer.scrollTop = this.outputContainer.scrollHeight;
}
addError(text) { this.addOutput(`X ${text}`, true); }
showStatus(message, isError=false) {
if (!this.statusElement) { this.statusElement=document.createElement('div'); document.body.appendChild(this.statusElement); }
this.statusElement.className = `pytml-status${isError ? ' error' : ''}`;
this.statusElement.textContent = String(message);
this.statusElement.style.display = 'block';
}
hideStatus() { if (this.statusElement) { this.statusElement.remove(); this.statusElement=null; } }
setTimeout(fn, ms) {
const id = window.setTimeout(() => {
try { fn(); } catch (e) { this.addError(`Timer error: ${e.message}`); }
}, Number(ms)||0);
this._timeouts.set(id, fn);
return id;
}
setInterval(fn, ms) {
const id = window.setInterval(() => {
try { fn(); } catch (e) { this.addError(`Timer error: ${e.message}`); }
}, Number(ms)||0);
this._intervals.set(id, fn);
return id;
}
clearTimeout(id) {
window.clearTimeout(id);
const fn = this._timeouts.get(id);
if (fn) {
try { fn.destroy(); } catch (_) {}
this._timeouts.delete(id);
}
}
clearInterval(id) {
window.clearInterval(id);
const fn = this._intervals.get(id);
if (fn) {
try { fn.destroy(); } catch (_) {}
this._intervals.delete(id);
}
}
clipboard_write(text) {
if (!navigator.clipboard?.writeText) return Promise.reject(new Error('Clipboard API unavailable'));
return navigator.clipboard.writeText(String(text));
}
clipboard_read() {
if (!navigator.clipboard?.readText) return Promise.reject(new Error('Clipboard API unavailable'));
return navigator.clipboard.readText();
}
alert(message) { return window.alert(String(message)); }
confirm(message) { return window.confirm(String(message)); }
storage_get(key, fallback=null) { return localStorage.getItem(String(key)) ?? fallback; }
storage_set(key, value) { localStorage.setItem(String(key), String(value)); }
storage_remove(key) { localStorage.removeItem(String(key)); }
download(data, filename, mime='text/plain;charset=utf-8') {
const blob = data instanceof Blob ? data : new Blob([String(data)], { type: mime });
const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href=url; a.download=String(filename); a.click();
setTimeout(() => URL.revokeObjectURL(url), 1000);
}
makeJoystick(target) {
const el = this.element(target).element;
if (el.__pytmlJoystick) return this.makeJoystickProxy(el);
el.classList.add('pytml-joystick'); el.style.touchAction='none';
const state={x:0,y:0,magnitude:0,angle:0,active:false}; this._joystickState.set(el,state);
const knob=document.createElement('div'); knob.className='pytml-joystick-knob'; el.appendChild(knob);
const move=(ev)=>{
const r=el.getBoundingClientRect(), cx=r.left+r.width/2, cy=r.top+r.height/2, max=Math.max(1,Math.min(r.width,r.height)/2);
const dx=ev.clientX-cx, dy=ev.clientY-cy, angle=Math.atan2(dy,dx), magnitude=Math.min(1,Math.hypot(dx,dy)/max);
state.x=Math.cos(angle)*magnitude; state.y=Math.sin(angle)*magnitude; state.magnitude=magnitude; state.angle=angle; state.active=true;
knob.style.left=`${50+state.x*35}%`; knob.style.top=`${50+state.y*35}%`;
el.dispatchEvent(new CustomEvent('joystickmove',{detail:{...state},bubbles:true}));
};
const reset=(ev)=>{ state.x=state.y=state.magnitude=state.angle=0; state.active=false; knob.style.left='50%'; knob.style.top='50%'; el.dispatchEvent(new CustomEvent('joystickmove',{detail:{...state},bubbles:true})); try{el.releasePointerCapture?.(ev.pointerId)}catch(_){} };
el.addEventListener('pointerdown',ev=>{el.setPointerCapture?.(ev.pointerId);move(ev)});
el.addEventListener('pointermove',ev=>{if(el.hasPointerCapture?.(ev.pointerId))move(ev)});
el.addEventListener('pointerup',reset); el.addEventListener('pointercancel',reset); el.__pytmlJoystick=true;
return this.makeJoystickProxy(el);
}
makeJoystickProxy(el) {
const base=this.makeElementProxy(el);
Object.defineProperties(base, {
joystick_x:{enumerable:true,get:()=>this._joystickState.get(el)?.x||0},
joystick_y:{enumerable:true,get:()=>this._joystickState.get(el)?.y||0},
magnitude:{enumerable:true,get:()=>this._joystickState.get(el)?.magnitude||0},
angle:{enumerable:true,get:()=>this._joystickState.get(el)?.angle||0},
active:{enumerable:true,get:()=>this._joystickState.get(el)?.active||false}
});
return base;
}
joystick_state(el) { return this._joystickState.get(el) || {x:0,y:0,magnitude:0,angle:0,active:false}; }
gamepads() { return [...(navigator.getGamepads?.()||[])].filter(Boolean).map(g=>({id:g.id,index:g.index,connected:g.connected,buttons:[...g.buttons].map(b=>({pressed:b.pressed,value:b.value})),axes:[...g.axes]})); }
}
let singleton=null;
function start(options={}) { if(!singleton) singleton=new Pytml(options); return singleton.start(); }
async function boot() {
const run = async () => {
if (!pageHasPythonBlocks()) return;
try {
await start();
} catch (err) {
console.error('[PYTML] boot failed:', err);
failBootState(err?.message || 'Python failed to load. Refresh to retry.');
}
};
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', run, { once: true });
} else {
run();
}
}
installEarlyPythonHide();
global.Pytml=Pytml;
global.PytmlStart=start;
global.pytml=global.pytml||{start};
boot();
})(typeof window!=='undefined'?window:globalThis);
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