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feat: add universal prompt generation for Nano Banana #1

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Merged
dilitS merged 1 commit into from
Jun 23, 2026
Merged

feat: add universal prompt generation for Nano Banana #1

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4 changes: 4 additions & 0 deletions lib/api-client.js
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Original file line number Diff line number Diff line change
Expand Up @@ -367,6 +367,10 @@ Rules:
7. Providing ONLY the improved prompt, no explanations`;

prompt = `Improve the following video generation prompt and translate it to ${targetLangName}. Focus on camera movement, specific action, motion dynamics, physics, and cinematic style. Respond only with the improved prompt:\n\n${sanitizedText}`;
} else if (type === 'image-universal') {
systemInstruction = `You are an expert AI prompt engineer for image generation. Your job is to transform rough user intent into a premium, universal image prompt. These prompts should be optimized for Nano Banana Pro (Google Gemini) but must work exceptionally well with any text-to-image model including Nano Banana 2, Seedream 5.0, GPT Image 1.5, Midjourney, DALL-E 3, Flux, and Stable Diffusion. Output ONLY the final prompt in English.`;

prompt = `Turn this idea into a universal, high-quality image prompt optimized for Nano Banana but compatible with any text-to-image model. Respond only with the prompt:\n\n${sanitizedText}`;
} else {
systemInstruction = `You are a senior prompt editor for AI image models. Your task is to expand and clean up a user's existing image prompt without changing its core intent.

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6 changes: 5 additions & 1 deletion popup/modules/ui-manager.js
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Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,11 @@ export function switchMode(mode) {
export function updatePromptTypeVisuals(type) {
elements.promptTypeBtns.forEach(btn => {
if (btn.dataset.type === type) {
btn.className = 'prompt-type-btn flex-1 py-2 px-3 text-xs font-medium rounded-lg border border-orange-500/30 bg-orange-500/10 text-orange-400 flex items-center justify-center gap-2 hover:bg-orange-500/20 transition-colors';
if (type === 'image-universal') {
btn.className = 'prompt-type-btn flex-1 py-2 px-3 text-xs font-medium rounded-lg border border-green-500/30 bg-green-500/10 text-green-400 flex items-center justify-center gap-2 hover:bg-green-500/20 transition-colors';
} else {
btn.className = 'prompt-type-btn flex-1 py-2 px-3 text-xs font-medium rounded-lg border border-orange-500/30 bg-orange-500/10 text-orange-400 flex items-center justify-center gap-2 hover:bg-orange-500/20 transition-colors';
}
} else {
btn.className = 'prompt-type-btn flex-1 py-2 px-3 text-xs font-medium rounded-lg border border-gray-700 bg-[#1e1e1e] text-gray-500 flex items-center justify-center gap-2 hover:bg-[#252525] hover:text-gray-300 transition-colors';
}
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75 changes: 61 additions & 14 deletions popup/output.css
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Original file line number Diff line number Diff line change
Expand Up @@ -568,6 +568,10 @@ video {
visibility: visible;
}

.static {
position: static;
}

.fixed {
position: fixed;
}
Expand Down Expand Up @@ -672,8 +676,8 @@ video {
margin-right: 0.25rem;
}

.mt-1 {
margin-top: 0.25rem;
.mt-2 {
margin-top: 0.5rem;
}

.mt-3 {
Expand All @@ -688,6 +692,10 @@ video {
display: block;
}

.inline {
display: inline;
}

.flex {
display: flex;
}
Expand All @@ -696,10 +704,18 @@ video {
display: grid;
}

.contents {
display: contents;
}

.hidden {
display: none;
}

.h-1 {
height: 0.25rem;
}

.h-6 {
height: 1.5rem;
}
Expand Down Expand Up @@ -1011,6 +1027,10 @@ video {
border-color: rgb(31 41 55 / 0.5);
}

.border-green-500\/30 {
border-color: rgb(34 197 94 / 0.3);
}

.border-orange-500\/20 {
border-color: rgb(249 115 22 / 0.2);
}
Expand All @@ -1019,6 +1039,10 @@ video {
border-color: rgb(249 115 22 / 0.3);
}

.border-red-900\/50 {
border-color: rgb(127 29 29 / 0.5);
}

.border-transparent {
border-color: transparent;
}
Expand Down Expand Up @@ -1068,12 +1092,13 @@ video {
background-color: rgb(0 0 0 / 0.9);
}

.bg-blue-500\/10 {
background-color: rgb(59 130 246 / 0.1);
.bg-blue-500 {
--tw-bg-opacity: 1;
background-color: rgb(59 130 246 / var(--tw-bg-opacity));
}

.bg-blue-500\/5 {
background-color: rgb(59 130 246 / 0.05);
.bg-blue-500\/10 {
background-color: rgb(59 130 246 / 0.1);
}

.bg-blue-600 {
Expand All @@ -1086,6 +1111,15 @@ video {
background-color: rgb(55 65 81 / var(--tw-bg-opacity));
}

.bg-gray-800 {
--tw-bg-opacity: 1;
background-color: rgb(31 41 55 / var(--tw-bg-opacity));
}

.bg-green-500\/10 {
background-color: rgb(34 197 94 / 0.1);
}

.bg-orange-500\/10 {
background-color: rgb(249 115 22 / 0.1);
}
Expand All @@ -1095,6 +1129,10 @@ video {
background-color: rgb(234 88 12 / var(--tw-bg-opacity));
}

.bg-red-900\/30 {
background-color: rgb(127 29 29 / 0.3);
}

.bg-transparent {
background-color: transparent;
}
Expand Down Expand Up @@ -1248,6 +1286,10 @@ video {
text-align: center;
}

.text-right {
text-align: right;
}

.font-mono {
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
Expand Down Expand Up @@ -1334,10 +1376,6 @@ video {
line-height: 1.375;
}

.tracking-\[0\.18em\] {
letter-spacing: 0.18em;
}

.tracking-\[0\.2em\] {
letter-spacing: 0.2em;
}
Expand Down Expand Up @@ -1595,15 +1633,15 @@ video {
background-color: rgb(59 130 246 / var(--tw-bg-opacity));
}

.hover\:bg-blue-500\/20:hover {
background-color: rgb(59 130 246 / 0.2);
}

.hover\:bg-gray-700:hover {
--tw-bg-opacity: 1;
background-color: rgb(55 65 81 / var(--tw-bg-opacity));
}

.hover\:bg-green-500\/20:hover {
background-color: rgb(34 197 94 / 0.2);
}

.hover\:bg-orange-500\/20:hover {
background-color: rgb(249 115 22 / 0.2);
}
Expand All @@ -1612,6 +1650,10 @@ video {
background-color: rgb(239 68 68 / 0.2);
}

.hover\:bg-red-900\/60:hover {
background-color: rgb(127 29 29 / 0.6);
}

.hover\:bg-white:hover {
--tw-bg-opacity: 1;
background-color: rgb(255 255 255 / var(--tw-bg-opacity));
Expand Down Expand Up @@ -1700,6 +1742,11 @@ video {
cursor: not-allowed;
}

.disabled\:bg-gray-700:disabled {
--tw-bg-opacity: 1;
background-color: rgb(55 65 81 / var(--tw-bg-opacity));
}

.disabled\:opacity-40:disabled {
opacity: 0.4;
}
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6 changes: 6 additions & 0 deletions popup/popup.html
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Original file line number Diff line number Diff line change
Expand Up @@ -92,11 +92,17 @@
data-type="image">
<i class="fa-solid fa-wand-magic-sparkles"></i> Rozbuduj
</button>
<button id="btn-p-universal"
class="prompt-type-btn flex-1 py-1.5 px-3 text-xs font-medium rounded-lg border border-gray-700 bg-[#1e1e1e] text-gray-500 flex items-center justify-center gap-2 hover:bg-[#252525] hover:text-gray-300 transition-colors"
data-type="image-universal">
<i class="fa-solid fa-globe"></i> Uniwersalny
</button>
</div>

<input type="radio" name="prompt-type" value="image-photo" class="hidden" checked>
<input type="radio" name="prompt-type" value="image-graphic" class="hidden">
<input type="radio" name="prompt-type" value="image" class="hidden">
<input type="radio" name="prompt-type" value="image-universal" class="hidden">
</div>

<!-- TONE / REGISTER SELECTOR (Translate) -->
Expand Down
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