mirror of
https://github.com/amitwh/markdown-converter.git
synced 2026-08-02 18:10:18 +05:30
Release v3.0.0: PDF Viewer & Editor Integration
Major Features: - Integrated PDF viewer with zoom, page navigation, and fit modes - PDF editor toolbar with direct access to all PDF operations - New app branding with docico1.png icon - ConcreteInfo theme (light & dark variants) - Comprehensive PDF editing: merge, split, compress, rotate, delete, reorder - Watermark, encrypt, decrypt, and permissions management - Overwrite original file option for all PDF operations UI Improvements: - PDF viewer takes full screen when active (hides tabs and toolbar) - Compact modals with reduced font sizes - Dark theme fixes for icons and dialogs - Save/Save As options for PDF operations - Improved PDF toolbar theming Technical: - Added isPdfViewerActive state tracking - Proper PDF document lifecycle management - Fixed hang issues when switching between PDF and markdown - All dependencies are open-source (MIT, Apache 2.0, BSD) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Claude
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/**
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* Preload Script for PanConverter
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*
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* This script creates a secure bridge between the main process and renderer process.
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* It exposes only specific IPC channels, preventing direct Node.js access in the renderer.
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*
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* Security Benefits:
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* - No direct access to Node.js APIs (fs, path, child_process, etc.)
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* - All IPC channels are explicitly whitelisted
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* - Prevents XSS from escalating to full system access
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*
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* @version 2.2.0
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*/
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const { contextBridge, ipcRenderer } = require('electron');
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// Define allowed IPC channels for security
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const ALLOWED_SEND_CHANNELS = [
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// File operations
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'save-file',
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'save-current-file',
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'set-current-file',
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'save-recent-files',
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'clear-recent-files',
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'renderer-ready',
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// Theme
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'get-theme',
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// Print
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'do-print',
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// Export
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'export-with-options',
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'export-spreadsheet',
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// Batch conversion
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'batch-convert',
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'select-folder',
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// Universal converter
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'universal-convert',
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'universal-convert-batch',
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// Image converter
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'image-convert',
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'image-batch-convert',
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'image-resize',
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'image-compress',
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'image-rotate',
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// Audio converter
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'audio-convert',
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'audio-batch-convert',
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'audio-extract',
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'audio-trim',
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'audio-merge',
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// Video converter
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'video-convert',
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'video-batch-convert',
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'video-compress',
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'video-trim',
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'video-frames',
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'video-gif',
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// Header/Footer
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'get-header-footer-settings',
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'save-header-footer-settings',
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'browse-header-footer-logo',
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'save-header-footer-logo',
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'clear-header-footer-logo',
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// Page settings
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'get-page-settings',
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'update-page-settings',
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// Template settings
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'set-custom-start-page',
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// PDF operations
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'process-pdf-operation',
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'get-pdf-page-count',
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'select-pdf-folder',
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// ASCII generator (separate window)
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'open-ascii-generator',
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// Table generator (separate window)
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'open-table-generator',
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// Insert generated content
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'insert-generated-content'
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];
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const ALLOWED_RECEIVE_CHANNELS = [
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// File operations
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'file-new',
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'file-opened',
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'file-save',
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'get-content-for-save',
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'get-content-for-spreadsheet',
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'recent-files-cleared',
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// UI toggles
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'toggle-preview',
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'toggle-find',
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// Theme
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'theme-changed',
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'theme-data',
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// Edit operations
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'undo',
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'redo',
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// Font
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'adjust-font-size',
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// Print
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'print-preview',
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'print-preview-styled',
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// Export dialogs
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'show-export-dialog',
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'show-batch-dialog',
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'show-universal-converter-dialog',
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'show-table-generator',
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'show-pdf-editor-dialog',
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// Converter dialogs
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'show-image-converter',
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'show-audio-converter',
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'show-video-converter',
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// PDF viewer
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'open-pdf-viewer',
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// Conversion status
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'conversion-status',
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'conversion-complete',
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'batch-progress',
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'image-conversion-complete',
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'audio-conversion-complete',
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'video-conversion-complete',
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// Folder selection
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'folder-selected',
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'pdf-folder-selected',
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// Header/Footer
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'header-footer-settings-data',
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'header-footer-logo-selected',
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'header-footer-logo-saved',
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// Page settings
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'page-settings-data',
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// PDF operations
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'pdf-page-count',
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'pdf-operation-complete',
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'pdf-operation-error',
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// ASCII Art Generator
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'show-ascii-generator-window',
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'show-ascii-generator',
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// Table Generator
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'show-table-generator-window',
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// Header/Footer dialog
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'open-header-footer-dialog',
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'header-footer-logo-cleared',
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// PDF operation progress
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'pdf-operation-progress',
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// Insert content from generator windows
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'insert-content'
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];
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/**
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* Secure API exposed to renderer process
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* Access via window.electronAPI in renderer
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*/
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contextBridge.exposeInMainWorld('electronAPI', {
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// ============================================
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// SEND METHODS (Renderer -> Main)
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// ============================================
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/**
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* Send a message to the main process
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* @param {string} channel - IPC channel name
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* @param {any} data - Data to send
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*/
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send: (channel, data) => {
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if (ALLOWED_SEND_CHANNELS.includes(channel)) {
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ipcRenderer.send(channel, data);
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} else {
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console.warn(`[Preload] Blocked send to unauthorized channel: ${channel}`);
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}
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},
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/**
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* Invoke a main process handler and get a response
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* @param {string} channel - IPC channel name
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* @param {any} data - Data to send
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* @returns {Promise<any>} Response from main process
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*/
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invoke: async (channel, data) => {
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if (ALLOWED_SEND_CHANNELS.includes(channel)) {
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return await ipcRenderer.invoke(channel, data);
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} else {
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console.warn(`[Preload] Blocked invoke to unauthorized channel: ${channel}`);
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return null;
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}
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},
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// ============================================
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// RECEIVE METHODS (Main -> Renderer)
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// ============================================
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/**
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* Register a listener for messages from main process
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* @param {string} channel - IPC channel name
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* @param {Function} callback - Function to call with received data
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* @returns {Function} Cleanup function to remove listener
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*/
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on: (channel, callback) => {
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if (ALLOWED_RECEIVE_CHANNELS.includes(channel)) {
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const subscription = (event, ...args) => callback(...args);
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ipcRenderer.on(channel, subscription);
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// Return cleanup function
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return () => {
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ipcRenderer.removeListener(channel, subscription);
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};
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} else {
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console.warn(`[Preload] Blocked listener for unauthorized channel: ${channel}`);
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return () => {}; // No-op cleanup
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}
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},
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/**
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* Register a one-time listener for messages from main process
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* @param {string} channel - IPC channel name
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* @param {Function} callback - Function to call with received data
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*/
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once: (channel, callback) => {
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if (ALLOWED_RECEIVE_CHANNELS.includes(channel)) {
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ipcRenderer.once(channel, (event, ...args) => callback(...args));
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} else {
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console.warn(`[Preload] Blocked once listener for unauthorized channel: ${channel}`);
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}
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},
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/**
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* Remove all listeners for a channel
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* @param {string} channel - IPC channel name
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*/
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removeAllListeners: (channel) => {
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if (ALLOWED_RECEIVE_CHANNELS.includes(channel)) {
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ipcRenderer.removeAllListeners(channel);
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}
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},
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// ============================================
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// CONVENIENCE METHODS
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// ============================================
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// File Operations
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file: {
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save: (filePath, content) => ipcRenderer.send('save-file', { path: filePath, content }),
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saveCurrent: (content) => ipcRenderer.send('save-current-file', content),
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setCurrent: (filePath) => ipcRenderer.send('set-current-file', filePath),
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saveRecent: (recentFiles) => ipcRenderer.send('save-recent-files', recentFiles),
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clearRecent: () => ipcRenderer.send('clear-recent-files'),
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rendererReady: () => ipcRenderer.send('renderer-ready')
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},
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// Theme Operations
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theme: {
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get: () => ipcRenderer.send('get-theme')
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},
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// Print Operations
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print: {
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doPrint: (options) => ipcRenderer.send('do-print', options)
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},
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// Export Operations
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export: {
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withOptions: (format, options) => ipcRenderer.send('export-with-options', { format, options }),
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spreadsheet: (content, format) => ipcRenderer.send('export-spreadsheet', { content, format })
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},
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// Batch Conversion
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batch: {
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convert: (inputFolder, outputFolder, format, options) => {
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ipcRenderer.send('batch-convert', { inputFolder, outputFolder, format, options });
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},
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selectFolder: (type) => ipcRenderer.send('select-folder', type)
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},
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// Universal Converter
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converter: {
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convert: (tool, fromFormat, toFormat, filePath) => {
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ipcRenderer.send('universal-convert', { tool, fromFormat, toFormat, filePath });
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},
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convertBatch: (tool, fromFormat, toFormat, inputFolder, outputFolder) => {
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ipcRenderer.send('universal-convert-batch', { tool, fromFormat, toFormat, inputFolder, outputFolder });
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}
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},
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// Header/Footer Operations
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headerFooter: {
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getSettings: () => ipcRenderer.send('get-header-footer-settings'),
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saveSettings: (settings) => ipcRenderer.send('save-header-footer-settings', settings),
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browseLogo: (position) => ipcRenderer.send('browse-header-footer-logo', position),
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saveLogo: (position, filePath) => ipcRenderer.send('save-header-footer-logo', { position, filePath }),
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clearLogo: (position) => ipcRenderer.send('clear-header-footer-logo', position)
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},
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// Page Settings
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page: {
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getSettings: () => ipcRenderer.send('get-page-settings'),
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updateSettings: (settings) => ipcRenderer.send('update-page-settings', settings),
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setCustomStartPage: (pageNumber) => ipcRenderer.send('set-custom-start-page', pageNumber)
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},
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// PDF Operations
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pdf: {
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processOperation: (data) => ipcRenderer.send('process-pdf-operation', data),
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getPageCount: (filePath) => ipcRenderer.send('get-pdf-page-count', filePath),
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selectFolder: (inputId) => ipcRenderer.send('select-pdf-folder', inputId)
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},
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// Image Converter Operations
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image: {
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convert: (data) => ipcRenderer.send('image-convert', data),
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batchConvert: (data) => ipcRenderer.send('image-batch-convert', data),
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resize: (data) => ipcRenderer.send('image-resize', data),
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compress: (data) => ipcRenderer.send('image-compress', data),
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rotate: (data) => ipcRenderer.send('image-rotate', data)
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},
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// Audio Converter Operations
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audio: {
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convert: (data) => ipcRenderer.send('audio-convert', data),
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batchConvert: (data) => ipcRenderer.send('audio-batch-convert', data),
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extract: (data) => ipcRenderer.send('audio-extract', data),
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trim: (data) => ipcRenderer.send('audio-trim', data),
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merge: (data) => ipcRenderer.send('audio-merge', data)
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},
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// Video Converter Operations
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video: {
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convert: (data) => ipcRenderer.send('video-convert', data),
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batchConvert: (data) => ipcRenderer.send('video-batch-convert', data),
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compress: (data) => ipcRenderer.send('video-compress', data),
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trim: (data) => ipcRenderer.send('video-trim', data),
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extractFrames: (data) => ipcRenderer.send('video-frames', data),
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toGif: (data) => ipcRenderer.send('video-gif', data)
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},
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// Generator Windows
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generators: {
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openAscii: () => ipcRenderer.send('open-ascii-generator'),
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openTable: () => ipcRenderer.send('open-table-generator')
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}
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});
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// Log successful preload initialization
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console.log('[Preload] Secure IPC bridge initialized');
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console.log('[Preload] Allowed send channels:', ALLOWED_SEND_CHANNELS.length);
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console.log('[Preload] Allowed receive channels:', ALLOWED_RECEIVE_CHANNELS.length);
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