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║                     PAGE EDITOR CHROME EXTENSION                             ║
║                         Complete Structure                                    ║
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📁 Project Structure:
├── manifest.json          [Configuration & permissions]
├── content.js             [Main script that runs on pages]
├── background.js          [Service worker for extension]
├── popup.html             [Extension popup UI]
├── popup.js               [Popup interactions]
├── styles.css             [Styling for editable elements]
├── README.md              [Full documentation]
├── QUICKSTART.md          [Installation & quick start guide]
└── EXTENSION_OVERVIEW.txt [This file]

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🎯 KEY FEATURES:

✏️  Edit Any Text
   - Click any text element on any website to edit it
   - Visual feedback with yellow highlight on hover
   - Works on paragraphs, headings, lists, divs, and more

💾 Auto-Save
   - Changes auto-save when you click outside an element
   - Manual save with Ctrl+S
   - Save all with Ctrl+Shift+S

🔄 Persistent Storage
   - Uses Chrome's Local Storage API
   - Changes survive page reloads
   - Per-domain storage (each website has separate edits)

📥 Export & Backup
   - Export all edits as JSON file
   - Backup your changes before clearing browser data
   - Import workflow (manual JSON editing)

🧹 Clear & Reset
   - Clear all edits for a page
   - Reset to original website content
   - Individual element clearing by deleting text

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🔧 HOW IT WORKS:

1. CONTENT INJECTION (content.js)
   ├─ Runs on every webpage (all_urls match)
   ├─ Makes text elements contenteditable
   ├─ Adds visual styling with styles.css
   ├─ Detects blur events and auto-saves
   ├─ Loads saved edits on page load
   └─ Monitors for new dynamic content

2. STORAGE (chrome.storage.local)
   ├─ Key: "page_edits_<base64_encoded_url>"
   ├─ Value: { element_id: new_html, ... }
   ├─ Persists across sessions
   └─ ~10MB limit per domain

3. POPUP INTERFACE (popup.html/js)
   ├─ Shows edit count
   ├─ Save all changes button
   ├─ Clear all edits button
   ├─ Export edits as JSON
   └─ Keyboard shortcuts guide

4. BACKGROUND SERVICE WORKER (background.js)
   └─ Minimal - mostly handles popup interactions

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⌨️  KEYBOARD SHORTCUTS:

Ctrl+S (Cmd+S on Mac)          Save current edit
Ctrl+Shift+S (Cmd+Shift+S)     Save all edits on page
Click                           Edit any text element

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📋 INSTALLATION CHECKLIST:

☐ 1. Open chrome://extensions/
☐ 2. Enable "Developer mode" (top right toggle)
☐ 3. Click "Load unpacked"
☐ 4. Select the page_editor folder
☐ 5. Extension should appear in your list
☐ 6. Extension icon appears in toolbar
☐ 7. Visit any website to test

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🧪 TEST IT:

1. Open https://example.com
2. You'll see yellow highlights on text elements
3. Click "Example Domain" heading to edit it
4. Change it to anything, click outside
5. Reload the page (Ctrl+R)
6. Your change persists! ✨

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📝 MANIFEST DETAILS:

manifest_version: 3 (latest Chrome standard)
Permissions:
  - storage: Save/load edits from local storage
  - scripting: Inject content script

Host Permissions:
  - <all_urls>: Works on any website

Content Scripts:
  - Runs on all URLs
  - Loads content.js and styles.css at document start
  - Executes before page content loads

Action (Popup):
  - popup.html: Shows controls and status
  - Default title: "Page Editor"

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💾 STORAGE MECHANISM:

URL: https://example.com/page
Storage Key: page_edits_aHR0cHM6Ly9leGFtcGxlLmNvbS9wYWdl

Storage Value Example:
{
  "DIV[0]/P[1]": "<strong>New content</strong>",
  "DIV[0]/H1[0]": "Updated heading"
}

Element identification uses XPath-like structure for reliability.

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🎨 STYLING:

Editable Elements:
  ├─ Default: 1px gray outline + light yellow background
  ├─ Hover: Yellow outline + darker yellow background
  └─ Focus: 2px blue outline + light blue background

Notifications:
  ├─ Auto-save indicator (bottom right)
  └─ Save confirmation (top right)

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⚠️  IMPORTANT NOTES:

1. Changes are stored LOCALLY in your browser
   - Not synced across devices
   - Not uploaded anywhere
   - Only visible to you on this browser

2. Some websites may block editing due to Content Security Policy

3. Clearing browser cache will also clear your edits
   - Use "Export Edits" to backup before clearing

4. Maximum ~10MB storage per domain

5. Dynamic content added after page load needs page refresh
   to become editable

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📞 SUPPORT:

For issues, check:
1. README.md - Full feature documentation
2. QUICKSTART.md - Installation and quick reference
3. Browser console (F12) for error messages
4. chrome://extensions/ - Extension status and logs

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🚀 READY TO USE!

The extension is fully functional and ready to install.
Follow the installation steps in QUICKSTART.md to get started.

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