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import webview
html = """
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/water.css@2/out/water.css">
</head>
<script>
window.addEventListener('pywebviewready', () => {
window.pywebview.state.addEventListener('change', event => {
console.log('Counter value changed:', event)
document.getElementById('counter').innerText = pywebview.state.counter
})
})
function increaseCounter() {
pywebview.state.counter++
document.getElementById('counter').innerText = pywebview.state.counter
}
</script>
<body>
<h1>State</h1>
<p>Counter value: <span id="counter">0</span></p>
<button onclick="increaseCounter()">Increase counter from JS</button>
<button onclick="pywebview.api.decrease_counter()">Decrease counter from Python</button>
</body>
</html>
"""
def on_counter_change(type, key, value):
print(f'Event {type} for {key} value : {value}')
def decrease_counter():
window.state.counter -= 1
def on_loaded(window):
window.expose(decrease_counter)
window.state += on_counter_change
if __name__ == '__main__':
global window
window = webview.create_window('State example', html=html)
window.state.counter = 0
window.events.loaded += on_loaded
webview.start(debug=True)
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