柴进 / GoogleNanoBananaApp

MODIFIED Requirements

Requirement: Standalone History Browsing Interface

The system SHALL provide a standalone history browsing interface that displays complete information without interfering with the image generation interface.

Scenario: History item selection for detail viewing

• WHEN the user clicks on a history item
• THEN the system SHALL display detailed information in the details panel
• AND SHALL not modify any controls in the image generation interface
• AND SHALL show the complete prompt text, reference images, and generated image

Scenario: Independent interface operation

• WHEN the user switches between generation tab and history tab
• THEN the system SHALL preserve the state of each tab independently
• AND SHALL not load history data into generation controls
• AND SHALL maintain separate user contexts for each tab

REMOVED Requirements

Requirement: History Item Loading to Generation Interface

Reason: This feature interferes with the user's current work state and creates confusing interactions. Users want history as a pure browsing feature.

Migration: Replace with standalone detail viewing within the history tab.

ADDED Requirements

Requirement: History List with Image Previews

The system SHALL display generated image thumbnails directly in the history list for quick visual identification.

Scenario: History item thumbnail display

• WHEN the history list is loaded
• THEN the system SHALL display a 120x120 pixel thumbnail of each generated image
• AND SHALL include the timestamp and prompt preview (first 20 characters)
• AND SHALL maintain consistent thumbnail sizing and aspect ratio

Scenario: Image thumbnail loading

• WHEN loading history items
• THEN the system SHALL generate thumbnails efficiently
• AND SHALL show loading indicators for slow-loading images
• AND SHALL handle missing or corrupted image files gracefully

Requirement: Prompt Text Display and Copy

The system SHALL display the full prompt text for each history item with copy functionality.

Scenario: Prompt text display

• WHEN a history item is selected
• THEN the system SHALL display the complete prompt text in a dedicated area
• AND SHALL format the text for easy reading
• AND SHALL show prompt length and creation time

Scenario: Prompt text copying

• WHEN the user clicks the copy button
• THEN the system SHALL copy the full prompt text to clipboard
• AND SHALL show a success confirmation message
• AND SHALL maintain the original prompt formatting

Requirement: Reference Images Gallery

The system SHALL display reference images used in the generation process.

Scenario: Reference images display

• WHEN a history item with reference images is selected
• THEN the system SHALL display all reference images as thumbnails
• AND SHALL allow viewing full-size images on double-click
• AND SHALL show "No reference images" when none exist

Scenario: Reference image interaction

• WHEN the user double-clicks a reference image thumbnail
• THEN the system SHALL open the image in system default viewer
• AND SHALL handle missing image files gracefully

Requirement: Generated Image Preview

The system SHALL provide a large preview of the generated image within the history interface.

Scenario: Generated image display

• WHEN a history item is selected
• THEN the system SHALL display the generated image in a large preview area
• AND SHALL scale the image appropriately for the available space
• AND SHALL maintain image aspect ratio

Scenario: Generated image interaction

• WHEN the user double-clicks the generated image preview
• THEN the system SHALL open the image in system default viewer
• AND SHALL handle missing image files with appropriate error messages

Requirement: History Item Details Panel

The system SHALL provide a comprehensive details panel for selected history items.

Scenario: Details panel layout

• WHEN the history tab is opened
• THEN the system SHALL display a split-view interface
• AND SHALL show history list with image previews in the upper portion
• AND SHALL show details panel in the lower portion
• AND SHALL maintain responsive proportions

Scenario: Enhanced hover information

• WHEN the user hovers over a history list item
• THEN the system SHALL display comprehensive tooltip information
• AND SHALL include full prompt text, timestamp, aspect ratio, and image size
• AND SHALL provide quick visual preview without requiring selection

Scenario: Empty state handling

• WHEN no history item is selected
• THEN the system SHALL display helpful placeholder text
• AND SHALL guide user to select an item for details
• AND SHALL maintain a clean, uncluttered interface

Requirement: Independent Tab Management

The system SHALL ensure complete independence between generation and history tabs.

Scenario: Tab switching preservation

• WHEN the user switches between tabs
• THEN the system SHALL preserve all input fields and selections
• AND SHALL not transfer data between interfaces
• AND SHALL maintain separate operational contexts

Scenario: Concurrent operation support

• WHEN a history item is being viewed
• THEN the user SHALL still be able to work in the generation tab
• AND SHALL not have their work interrupted by history browsing
• AND SHALL experience smooth tab transitions