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Basic Text Formatting:
- Bold, Italic, Underline, Strikethrough.
- Font family, Font size, Text color, and Background color options.
- Text alignment: Left, Right, Center, Justify.
- Superscript and Subscript.
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List Handling:
- Ordered (numbered) lists and Unordered (bullet) lists.
- Indentation control for lists and paragraphs.
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Insertable Elements:
- Images: Upload or link to external images, with resizing, alignment, and caption options.
- Copy-Paste Support: When a user copies and pastes an image, it should be captured and editable within the editor.
- Links: Add, modify, and remove hyperlinks with different styles.
- Tables: Add tables with adjustable rows, columns, and border formatting.
- Videos: Embed video content from local sources or external URLs.
- Code blocks: Insert and format blocks of code, supporting syntax highlighting for various languages.
- Quotes: Blockquote styling for selected text.
- Images: Upload or link to external images, with resizing, alignment, and caption options.
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Advanced Formatting Options:
- Headers: Custom header levels (H1, H2, etc.).
- Line spacing: Control the space between lines and paragraphs.
- Block formats: Paragraph, preformatted text, and custom styles for specific content blocks.
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Media Management:
- Image settings: Adjust image properties like size, alt text, and link embedding.
- Video settings: Adjust video dimensions, autoplay, and mute settings.
- File attachments: Support for attaching documents, PDFs, and other files.
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Internal Object Management:
- Every embedded object (images, tables, videos, links, etc.) has an internal context menu for direct manipulation (cut, copy, paste, properties).
- Support for drag-and-drop rearrangement of objects within the document.
- Layering and positioning: Allow users to adjust the z-index and positioning of objects relative to text.
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Clipboard Support:
- Full cut, copy, and paste functionality, including support for pasting rich text, media, and content from other applications.
- When objects like pictures are pasted, they should be captured and made editable directly in the editor.
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Undo/Redo:
- Ability to undo and redo actions with multiple history steps.
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File Operations:
- Save document as HTML, RTF, or Markdown.
- Ability to export as PDF.
- Option to load existing RTF/HTML documents for editing.
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Full-Screen Mode:
- A toggle to enter a full-screen editing environment with focus mode.
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Customizable Toolbar:
- The toolbar should be customizable by the user, allowing them to select which tools are visible and their order.
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Responsive and Cross-Browser Support:
- The editor must be fully responsive and work across different browser environments (Chrome, Firefox, Safari, Edge) and screen sizes.
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Theme Support:
- Ability to switch between light and dark themes for the editing environment.
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Localization:
- The editor should support multiple languages (for menus, labels, etc.), including German, English, and Spanish.
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Security:
- Sanitization of HTML input/output to prevent XSS (Cross-Site Scripting) attacks when handling content.
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Plugin Architecture:
- The editor should have the ability to support plugins for extending functionality. This will allow developers to add custom features or tools to the editor in a modular way.