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Add printer scanning functionality and enhance UI for address input

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This commit is contained in:
Tobias Leuschner
2026-03-07 14:29:32 +01:00
parent 54ba6795c0
commit 4dd04d1d34
1 changed files with 44 additions and 1 deletions
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45
fichero_printer/fichero/api.py
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@@ -35,6 +35,7 @@ from fichero.printer import (
PrinterNotFound,
PrinterTimeout,
connect,
find_printer,
)
# ---------------------------------------------------------------------------
@@ -217,7 +218,10 @@ def _ui_html() -> str:
<div class="card">
<h2>Connection</h2>
<label for="address">Printer address</label>
<input id="address" value="{default_address}" placeholder="C9:48:8A:69:D5:C0">
<div style="display:flex;gap:8px;align-items:center">
<input id="address" value="{default_address}" placeholder="C9:48:8A:69:D5:C0" style="flex:1;width:auto">
<button type="button" id="scan-btn" class="alt" style="width:auto;white-space:nowrap" onclick="scanAddress()">&#128268; Scan</button>
</div>
<div class="row">
<div>
@@ -352,6 +356,29 @@ def _ui_html() -> str:
await showResponse(response);
}}
async function scanAddress() {{
const btn = document.getElementById("scan-btn");
const output = document.getElementById("output");
btn.disabled = true;
btn.textContent = "Scanning…";
output.textContent = "Scanning for printer (up to 8 s)…";
try {{
const response = await fetch("scan");
const data = await response.json();
if (response.ok && data.address) {{
document.getElementById("address").value = data.address;
output.textContent = JSON.stringify({{ status: response.status, ok: true, data }}, null, 2);
}} else {{
output.textContent = JSON.stringify({{ status: response.status, ok: false, data }}, null, 2);
}}
}} catch (e) {{
output.textContent = "Scan failed: " + e;
}} finally {{
btn.disabled = false;
btn.innerHTML = "&#128268; Scan";
}}
}}
async function printText() {{
const form = new FormData();
form.set("text", document.getElementById("text").value);
@@ -410,6 +437,22 @@ async def docs():
)
@app.get(
"/scan",
summary="Scan for printer",
response_description="BLE address of the discovered printer",
)
async def scan_printer():
"""Scan for a Fichero/D11s printer via BLE and return its address."""
try:
address = await find_printer()
except PrinterNotFound as exc:
raise HTTPException(status_code=404, detail=str(exc)) from exc
except Exception as exc:
raise HTTPException(status_code=502, detail=str(exc)) from exc
return {"address": address}
@app.get(
"/status",
summary="Get printer status",