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🎨 Palette: Improve UX by adding a loading state to the Generate Poster button #12

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🎨 Palette: Improve UX by adding a loading state to the Generate Poster button #12

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17 changes: 13 additions & 4 deletions web_app/static/script.js
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Original file line number Diff line number Diff line change
Expand Up @@ -613,7 +613,8 @@ function handleLyricLineClick(lineNumber) {
async function generatePoster() {
if (!currentMetadata) return;

loadingOverlay.style.display = 'flex';
generateBtn.disabled = true;
generateBtn.textContent = 'Generating...';

const indexingToggle = document.getElementById('indexingToggle');
const accentToggle = document.getElementById('accentToggle');
Expand All @@ -635,8 +636,9 @@ async function generatePoster() {
const end = endVal;

if (isNaN(start) || isNaN(end) || start >= end) {
loadingOverlay.style.display = 'none';
showToast("Please enter a valid range (Start must be less than End).", "error");
generateBtn.disabled = false;
generateBtn.textContent = 'Generate Poster';
return;
}

Expand Down Expand Up @@ -669,13 +671,20 @@ async function generatePoster() {
posterContainer.innerHTML = '';
posterContainer.appendChild(img);
showDownloadButton(imageUrl, data.filename);
loadingOverlay.style.display = 'none';
generateBtn.disabled = false;
generateBtn.textContent = 'Generate Poster';
};
img.onerror = () => {
showToast('Failed to load the poster image.', 'error');
generateBtn.disabled = false;
generateBtn.textContent = 'Generate Poster';
};

} catch (error) {
console.error("Generation failed", error);
showToast(`Error: ${error.message}`, "error");
loadingOverlay.style.display = 'none';
generateBtn.disabled = false;
generateBtn.textContent = 'Generate Poster';
}
}

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6 changes: 6 additions & 0 deletions web_app/static/style.css
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Original file line number Diff line number Diff line change
Expand Up @@ -166,6 +166,12 @@ header p {
transform: translateY(-1px);
}

.primary-btn:disabled {
opacity: 0.6;
cursor: not-allowed;
transform: none;
}

.secondary-btn {
background: transparent;
border-color: var(--border-color);
Expand Down