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Add PDF search feature to pdf-server (#445)

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* Add PDF search feature to pdf-server

Adds full-text search functionality to the PDF viewer:

- Search button in toolbar (Ctrl/Cmd+F to open)
- Search bar with input, prev/next navigation, match count
- Text extraction and caching across all pages
- Highlight overlays using DOM Range API
- Case-insensitive search across entire document
- Keyboard shortcuts: Ctrl+F (open), Enter (next), Shift+Enter (prev), Escape (close)

Changes:
- mcp-app.html: Add search button, search bar, highlight layer
- src/mcp-app.css: Add search/highlight styles and PDF.js text layer rules
- src/mcp-app.ts: Add search state, functions, event listeners

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* update screenshots

* Add fullscreen button to threejs-server

* Fix prettier formatting

* Move search bar below toolbar, right-aligned

* Make search bar compact and right-aligned

* Float search bar over page content

* Ctrl/Cmd+F toggles search; pass through to browser when empty

* Hide search nav controls until query is entered

* Skip scroll when search highlight is already visible

* Fix search bar right-edge alignment with container border

* Prevent browser find when our search is open with text

* Cmd+F when search input is focused passes through to browser find

* Fix prettier formatting in README

* Remove unrelated formatting and threejs changes from PR

* prettier

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Olivier Chafik 2026-02-19 10:56:40 -08:00 • committed by GitHub
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README.md
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@ -84,12 +84,12 @@ npm install -S @modelcontextprotocol/ext-apps
The SDK serves three roles: app developers building interactive Views, host developers embedding those Views, and MCP server authors registering tools with UI metadata.
| Package | Purpose | Docs |
|---------|---------|------|
| `@modelcontextprotocol/ext-apps` | Build interactive Views (App class, PostMessageTransport) | [API Docs →](https://modelcontextprotocol.github.io/ext-apps/api/modules/app.html) |
| `@modelcontextprotocol/ext-apps/react` | React hooks for Views (useApp, useHostStyles, etc.) | [API Docs →](https://modelcontextprotocol.github.io/ext-apps/api/modules/_modelcontextprotocol_ext-apps_react.html) |
| `@modelcontextprotocol/ext-apps/app-bridge` | Embed and communicate with Views in your chat client | [API Docs →](https://modelcontextprotocol.github.io/ext-apps/api/modules/app-bridge.html) |
| `@modelcontextprotocol/ext-apps/server` | Register tools and resources on your MCP server | [API Docs →](https://modelcontextprotocol.github.io/ext-apps/api/modules/server.html) |
| Package | Purpose | Docs |
| ------------------------------------------- | --------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- |
| `@modelcontextprotocol/ext-apps` | Build interactive Views (App class, PostMessageTransport) | [API Docs →](https://modelcontextprotocol.github.io/ext-apps/api/modules/app.html) |
| `@modelcontextprotocol/ext-apps/react` | React hooks for Views (useApp, useHostStyles, etc.) | [API Docs →](https://modelcontextprotocol.github.io/ext-apps/api/modules/_modelcontextprotocol_ext-apps_react.html) |
| `@modelcontextprotocol/ext-apps/app-bridge` | Embed and communicate with Views in your chat client | [API Docs →](https://modelcontextprotocol.github.io/ext-apps/api/modules/app-bridge.html) |
| `@modelcontextprotocol/ext-apps/server` | Register tools and resources on your MCP server | [API Docs →](https://modelcontextprotocol.github.io/ext-apps/api/modules/server.html) |
There's no _supported_ host implementation in this repo (beyond the [examples/basic-host](https://github.com/modelcontextprotocol/ext-apps/tree/main/examples/basic-host) example).