Refactor code to remove legacy UI, transitioning to a straight webapp

abogen/main.py

@@ -1,54 +1,36 @@
-from json import load
+"""Backwards-compatible entry point that now launches the web UI."""
-import os
+
-import sys
+from __future__ import annotations
-import platform
+
 import atexit
+import os
+import platform
 import signal
+import sys
 
-# Qt platform plugin detection (fixes #59)
+from abogen.utils import load_config, prevent_sleep_end
-try:
+from abogen.web.app import main as _run_web_ui
-    from PyQt5.QtCore import QLibraryInfo
-    plugins = QLibraryInfo.location(QLibraryInfo.PluginsPath)
-    platform_dir = os.path.join(plugins, "platforms")
-    if os.path.isdir(platform_dir):
-        os.environ["QT_QPA_PLATFORM_PLUGIN_PATH"] = platform_dir
-        print("QT_QPA_PLATFORM_PLUGIN_PATH set to:", platform_dir)
-    else:
-        print("PyQt5 platform plugins not found at", platform_dir)
-except ImportError:
-    print("PyQt5 not installed.")
 
-from PyQt5.QtWidgets import QApplication
+# Configure Hugging Face Hub behaviour (mirrors legacy GUI defaults).
-from PyQt5.QtGui import QIcon
+os.environ.setdefault("HF_HUB_DISABLE_TELEMETRY", "1")
-from PyQt5.QtCore import qInstallMessageHandler, QtMsgType
+os.environ.setdefault("HF_HUB_ETAG_TIMEOUT", "10")
-
+os.environ.setdefault("HF_HUB_DOWNLOAD_TIMEOUT", "10")
-# Add the directory to Python path
+os.environ.setdefault("HF_HUB_DISABLE_SYMLINKS_WARNING", "1")
-sys.path.insert(0, os.path.join(os.path.dirname(__file__)))
-
-from abogen.utils import get_resource_path, load_config, prevent_sleep_end
-
-# Set Hugging Face Hub environment variables
-os.environ["HF_HUB_DISABLE_TELEMETRY"] = "1"  # Disable Hugging Face telemetry
-os.environ["HF_HUB_ETAG_TIMEOUT"] = "10"  # Metadata request timeout (seconds)
-os.environ["HF_HUB_DOWNLOAD_TIMEOUT"] = "10"  # File download timeout (seconds)
-os.environ["HF_HUB_DISABLE_SYMLINKS_WARNING"] = "1"  # Disable symlinks warning
 if load_config().get("disable_kokoro_internet", False):
-    print("INFO: Kokoro's internet access is disabled.")
+    os.environ["HF_HUB_OFFLINE"] = "1"
-    os.environ["HF_HUB_OFFLINE"] = "1"  # Disable Hugging Face Hub internet access
 
-from abogen.gui import abogen
+# Prefer faster ROCm tuning defaults when available.
-from abogen.constants import PROGRAM_NAME, VERSION
+os.environ.setdefault("MIOPEN_FIND_MODE", "FAST")
+os.environ.setdefault("MIOPEN_CONV_PRECISE_ROCM_TUNING", "0")
 
-# Set environment variables for AMD ROCm
+# Enable MPS GPU acceleration on Apple Silicon.
-os.environ["MIOPEN_FIND_MODE"] = "FAST"
+if platform.system() == "Darwin" and platform.processor() == "arm":
-os.environ["MIOPEN_CONV_PRECISE_ROCM_TUNING"] = "0"
+    os.environ.setdefault("PYTORCH_ENABLE_MPS_FALLBACK", "1")
 
-# Reset sleep states
 atexit.register(prevent_sleep_end)
 
 
-# Also handle signals (Ctrl+C, kill, etc.)
+def _cleanup_sleep(signum, _frame):
-def _cleanup_sleep(signum, frame):
     prevent_sleep_end()
     sys.exit(0)
 
@@ -56,75 +38,12 @@ def _cleanup_sleep(signum, frame):
 signal.signal(signal.SIGINT, _cleanup_sleep)
 signal.signal(signal.SIGTERM, _cleanup_sleep)
 
-# Ensure sys.stdout and sys.stderr are valid in GUI mode
-if sys.stdout is None:
-    sys.stdout = open(os.devnull, "w")
-if sys.stderr is None:
-    sys.stderr = open(os.devnull, "w")
 
-# Enable MPS GPU acceleration on Mac Apple Silicon
+def main() -> None:
-if platform.system() == "Darwin" and platform.processor() == "arm":
+    """Launch the Flask-based web UI."""
-    os.environ["PYTORCH_ENABLE_MPS_FALLBACK"] = "1"
+
+    _run_web_ui()
 
 
-# Custom message handler to filter out specific Qt warnings
+if __name__ == "__main__":  # pragma: no cover - manual execution hook
-def qt_message_handler(mode, context, message):
-    if "Wayland does not support QWindow::requestActivate()" in message:
-        return  # Suppress this specific message
-    if "setGrabPopup called with a parent, QtWaylandClient" in message:
-        return
-    if mode == QtMsgType.QtWarningMsg:
-        print(f"Qt Warning: {message}")
-    elif mode == QtMsgType.QtCriticalMsg:
-        print(f"Qt Critical: {message}")
-    elif mode == QtMsgType.QtFatalMsg:
-        print(f"Qt Fatal: {message}")
-    elif mode == QtMsgType.QtInfoMsg:
-        print(f"Qt Info: {message}")
-
-
-# Install the custom message handler
-qInstallMessageHandler(qt_message_handler)
-
-# Set application ID for Windows taskbar icon
-if platform.system() == "Windows":
-    import ctypes
-
-    app_id = f"{PROGRAM_NAME}.{VERSION}"
-    ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(app_id)
-
-# Handle Wayland on Linux GNOME
-if platform.system() == "Linux":
-    xdg_session = os.environ.get("XDG_SESSION_TYPE", "").lower()
-    desktop = os.environ.get("XDG_CURRENT_DESKTOP", "").lower()
-    if (
-        "gnome" in desktop
-        and xdg_session == "wayland"
-        and "QT_QPA_PLATFORM" not in os.environ
-    ):
-        os.environ["QT_QPA_PLATFORM"] = "wayland"
-
-
-def main():
-    """Main entry point for console usage."""
-    app = QApplication(sys.argv)
-
-    # Set application icon using get_resource_path from utils
-    icon_path = get_resource_path("abogen.assets", "icon.ico")
-    if icon_path:
-        app.setWindowIcon(QIcon(icon_path))
-
-    # Set the .desktop name on Linux
-    if platform.system() == "Linux":
-        try:
-            app.setDesktopFileName("abogen.desktop")
-        except AttributeError:
-            pass
-
-    ex = abogen()
-    ex.show()
-    sys.exit(app.exec_())
-
-
-if __name__ == "__main__":
     main()

abogen/queue_manager_gui.py

@@ -1,649 +1,9 @@
-# a simple window with a list of items in the queue, no checkboxes
+"""Legacy PyQt queue manager GUI removed."""
-# button to remove an item from the queue
-# button to clear the queue
 
-from PyQt5.QtWidgets import (
+from __future__ import annotations
-    QDialog,
-    QVBoxLayout,
-    QHBoxLayout,
-    QDialogButtonBox,
-    QPushButton,
-    QListWidget,
-    QListWidgetItem,
-    QFileIconProvider,
-    QLabel,
-    QWidget,
-    QSizePolicy,
-)
-from PyQt5.QtCore import QFileInfo, Qt
-from abogen.constants import COLORS
-from copy import deepcopy
-from PyQt5.QtGui import QFontMetrics
 
 
-class ElidedLabel(QLabel):
+def __getattr__(name: str):  # pragma: no cover - compatibility shim
-    def __init__(self, text, parent=None):
+    raise AttributeError(
-        super().__init__(text, parent)
+        "The PyQt queue manager GUI has been removed. Use the web dashboard instead."
-        self._full_text = text
+    )
-        self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Preferred)
-
-    def setText(self, text):
-        self._full_text = text
-        super().setText(text)
-        self.update()
-
-    def resizeEvent(self, event):
-        metrics = QFontMetrics(self.font())
-        elided = metrics.elidedText(self._full_text, Qt.ElideRight, self.width())
-        super().setText(elided)
-        super().resizeEvent(event)
-
-    def fullText(self):
-        return self._full_text
-
-
-class QueueListItemWidget(QWidget):
-    def __init__(self, file_name, char_count):
-        super().__init__()
-        layout = QHBoxLayout()
-        layout.setContentsMargins(12, 0, 6, 0)
-        layout.setSpacing(0)
-        import os
-
-        name_label = ElidedLabel(os.path.basename(file_name))
-        char_label = QLabel(f"Chars: {char_count}")
-        char_label.setStyleSheet(f"color: {COLORS['LIGHT_DISABLED']};")
-        char_label.setAlignment(Qt.AlignRight | Qt.AlignVCenter)
-        char_label.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Preferred)
-        layout.addWidget(name_label, 1)
-        layout.addWidget(char_label, 0)
-        self.setLayout(layout)
-
-
-class DroppableQueueListWidget(QListWidget):
-    def __init__(self, parent_dialog):
-        super().__init__()
-        self.parent_dialog = parent_dialog
-        self.setAcceptDrops(True)
-        # Overlay for drag hover
-        self.drag_overlay = QLabel("", self)
-        self.drag_overlay.setAlignment(Qt.AlignCenter)
-        self.drag_overlay.setStyleSheet(
-            f"border:2px dashed {COLORS['BLUE_BORDER_HOVER']}; border-radius:5px; padding:20px; background:{COLORS['BLUE_BG_HOVER']};"
-        )
-        self.drag_overlay.setVisible(False)
-        self.drag_overlay.setAttribute(Qt.WA_TransparentForMouseEvents, True)
-
-    def dragEnterEvent(self, event):
-        if event.mimeData().hasUrls():
-            for url in event.mimeData().urls():
-                if url.isLocalFile() and url.toLocalFile().lower().endswith(".txt"):
-                    self.drag_overlay.resize(self.size())
-                    self.drag_overlay.setVisible(True)
-                    event.acceptProposedAction()
-                    return
-        self.drag_overlay.setVisible(False)
-        event.ignore()
-
-    def dragMoveEvent(self, event):
-        if event.mimeData().hasUrls():
-            for url in event.mimeData().urls():
-                if url.isLocalFile() and url.toLocalFile().lower().endswith(".txt"):
-                    event.acceptProposedAction()
-                    return
-        event.ignore()
-
-    def dragLeaveEvent(self, event):
-        self.drag_overlay.setVisible(False)
-        event.accept()
-
-    def dropEvent(self, event):
-        self.drag_overlay.setVisible(False)
-        if event.mimeData().hasUrls():
-            file_paths = [
-                url.toLocalFile()
-                for url in event.mimeData().urls()
-                if url.isLocalFile() and url.toLocalFile().lower().endswith(".txt")
-            ]
-            if file_paths:
-                self.parent_dialog.add_files_from_paths(file_paths)
-                event.acceptProposedAction()
-            else:
-                event.ignore()
-        else:
-            event.ignore()
-
-    def resizeEvent(self, event):
-        super().resizeEvent(event)
-        if hasattr(self, "drag_overlay"):
-            self.drag_overlay.resize(self.size())
-
-
-class QueueManager(QDialog):
-    def __init__(self, parent, queue: list, title="Queue Manager", size=(600, 700)):
-        super().__init__()
-        self.queue = queue
-        self._original_queue = deepcopy(
-            queue
-        )  # Store a deep copy of the original queue
-        self.parent = parent
-        layout = QVBoxLayout()
-        layout.setContentsMargins(15, 15, 15, 15)  # set main layout margins
-        layout.setSpacing(12)  # set spacing between widgets in main layout
-        # list of queued items
-        self.listwidget = DroppableQueueListWidget(self)
-        self.listwidget.setSelectionMode(QListWidget.ExtendedSelection)
-        self.listwidget.setAlternatingRowColors(True)
-        self.listwidget.setContextMenuPolicy(Qt.CustomContextMenu)
-        self.listwidget.customContextMenuRequested.connect(self.show_context_menu)
-        # Add informative instructions at the top
-        instructions = QLabel(
-            "<h2>How Queue Works?</h2>"
-            "You can add text files (.txt) directly using the '<b>Add files</b>' button below. "
-            "To add PDF, EPUB or markdown files, use the input box in the main window and click the <b>'Add to Queue'</b> button. "
-            "Each file in the queue keeps the configuration settings active when it was added. "
-            "Changing the main window configuration afterward <b>does not</b> affect files already in the queue. "
-            "You can view each file's configuration by hovering over them."
-        )
-        instructions.setAlignment(Qt.AlignLeft)
-        instructions.setWordWrap(True)
-        instructions.setStyleSheet("margin-bottom: 8px;")
-        layout.addWidget(instructions)
-        # Overlay label for empty queue
-        self.empty_overlay = QLabel(
-            "Drag and drop your text files here or use the 'Add files' button.",
-            self.listwidget,
-        )
-        self.empty_overlay.setAlignment(Qt.AlignCenter)
-        self.empty_overlay.setStyleSheet(
-            f"color: {COLORS['LIGHT_DISABLED']}; background: transparent; padding: 20px;"
-        )
-        self.empty_overlay.setWordWrap(True)
-        self.empty_overlay.setAttribute(Qt.WA_TransparentForMouseEvents, True)
-        self.empty_overlay.hide()
-        # add queue items to the list
-        self.process_queue()
-
-        button_row = QHBoxLayout()
-        button_row.setContentsMargins(0, 0, 0, 0)  # optional: no margins for button row
-        button_row.setSpacing(7)  # set spacing between buttons
-        # Add files button
-        add_files_button = QPushButton("Add files")
-        add_files_button.setFixedHeight(40)
-        add_files_button.clicked.connect(self.add_more_files)
-        button_row.addWidget(add_files_button)
-
-        # Remove button
-        self.remove_button = QPushButton("Remove selected")
-        self.remove_button.setFixedHeight(40)
-        self.remove_button.clicked.connect(self.remove_item)
-        button_row.addWidget(self.remove_button)
-
-        # Clear button
-        self.clear_button = QPushButton("Clear Queue")
-        self.clear_button.setFixedHeight(40)
-        self.clear_button.clicked.connect(self.clear_queue)
-        button_row.addWidget(self.clear_button)
-
-        layout.addLayout(button_row)
-        layout.addWidget(self.listwidget)
-
-        # Connect selection change to update button state
-        self.listwidget.currentItemChanged.connect(self.update_button_states)
-        self.listwidget.itemSelectionChanged.connect(self.update_button_states)
-
-        buttons = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel, self)
-        buttons.accepted.connect(self.accept)
-        buttons.rejected.connect(self.reject)
-
-        layout.addWidget(buttons)
-
-        self.setLayout(layout)
-
-        self.setWindowTitle(title)
-        self.resize(*size)
-
-        self.update_button_states()
-
-    def process_queue(self):
-        """Process the queue items."""
-        self.listwidget.clear()
-        if not self.queue:
-            self.empty_overlay.resize(self.listwidget.size())
-            self.empty_overlay.show()
-            self.update_button_states()
-            return
-        else:
-            self.empty_overlay.hide()
-        icon_provider = QFileIconProvider()
-        for item in self.queue:
-            # Determine display file path (prefer save_base_path for original file)
-            display_file_path = getattr(item, "save_base_path", None) or item.file_name
-            processing_file_path = item.file_name
-            
-            # Only show the file name, not the full path
-            display_name = display_file_path
-            import os
-
-            if os.path.sep in display_file_path:
-                display_name = os.path.basename(display_file_path)
-            # Get icon for the display file
-            icon = icon_provider.icon(QFileInfo(display_file_path))
-            list_item = QListWidgetItem()
-            # Set tooltip with detailed info
-            output_folder = getattr(item, "output_folder", "")
-            # For plain .txt inputs we don't need to show a separate processing file
-            show_processing = True
-            try:
-                if isinstance(display_file_path, str) and display_file_path.lower().endswith('.txt'):
-                    show_processing = False
-            except Exception:
-                show_processing = True
-
-            tooltip = f"<b>Input File:</b> {display_file_path}<br>"
-            if show_processing and processing_file_path and processing_file_path != display_file_path:
-                tooltip += f"<b>Processing File:</b> {processing_file_path}<br>"
-            tooltip += (
-                f"<b>Language:</b> {getattr(item, 'lang_code', '')}<br>"
-                f"<b>Speed:</b> {getattr(item, 'speed', '')}<br>"
-                f"<b>Voice:</b> {getattr(item, 'voice', '')}<br>"
-                f"<b>Save Option:</b> {getattr(item, 'save_option', '')}<br>"
-            )
-            if output_folder not in (None, "", "None"):
-                tooltip += f"<b>Output Folder:</b> {output_folder}<br>"
-            tooltip += (
-                f"<b>Subtitle Mode:</b> {getattr(item, 'subtitle_mode', '')}<br>"
-                f"<b>Output Format:</b> {getattr(item, 'output_format', '')}<br>"
-                f"<b>Characters:</b> {getattr(item, 'total_char_count', '')}<br>"
-                f"<b>Replace Single Newlines:</b> {getattr(item, 'replace_single_newlines', False)}"
-            )
-            list_item.setToolTip(tooltip)
-            list_item.setIcon(icon)
-            # Store both paths for context menu
-            list_item.setData(Qt.UserRole, {
-                'display_path': display_file_path,
-                'processing_path': processing_file_path
-            })
-            # Use custom widget for display
-            char_count = getattr(item, "total_char_count", 0)
-            widget = QueueListItemWidget(display_file_path, char_count)
-            self.listwidget.addItem(list_item)
-            self.listwidget.setItemWidget(list_item, widget)
-        self.update_button_states()
-
-    def remove_item(self):
-        items = self.listwidget.selectedItems()
-        if not items:
-            return
-        from PyQt5.QtWidgets import QMessageBox
-
-        # Remove by index to ensure correct mapping
-        rows = sorted([self.listwidget.row(item) for item in items], reverse=True)
-        # Warn user if removing multiple files
-        if len(rows) > 1:
-            reply = QMessageBox.question(
-                self,
-                "Confirm Remove",
-                f"Are you sure you want to remove {len(rows)} selected items from the queue?",
-                QMessageBox.Yes | QMessageBox.No,
-                QMessageBox.No,
-            )
-            if reply != QMessageBox.Yes:
-                return
-        for row in rows:
-            if 0 <= row < len(self.queue):
-                del self.queue[row]
-        self.process_queue()
-        self.update_button_states()
-
-    def clear_queue(self):
-        from PyQt5.QtWidgets import QMessageBox
-
-        if len(self.queue) > 1:
-            reply = QMessageBox.question(
-                self,
-                "Confirm Clear Queue",
-                f"Are you sure you want to clear {len(self.queue)} items from the queue?",
-                QMessageBox.Yes | QMessageBox.No,
-                QMessageBox.No,
-            )
-            if reply != QMessageBox.Yes:
-                return
-        self.queue.clear()
-        self.listwidget.clear()
-        self.empty_overlay.resize(
-            self.listwidget.size()
-        )  # Ensure overlay is sized correctly
-        self.empty_overlay.show()  # Show the overlay when queue is empty
-        self.update_button_states()
-
-    def get_queue(self):
-        return self.queue
-
-    def get_current_attributes(self):
-        # Fetch current attribute values from the parent abogen GUI
-        attrs = {}
-        parent = self.parent
-        if parent is not None:
-            # lang_code: use parent's get_voice_formula and get_selected_lang
-            if hasattr(parent, "get_voice_formula") and hasattr(
-                parent, "get_selected_lang"
-            ):
-                voice_formula = parent.get_voice_formula()
-                attrs["lang_code"] = parent.get_selected_lang(voice_formula)
-                attrs["voice"] = voice_formula
-            else:
-                attrs["lang_code"] = getattr(parent, "selected_lang", "")
-                attrs["voice"] = getattr(parent, "selected_voice", "")
-            # speed
-            if hasattr(parent, "speed_slider"):
-                attrs["speed"] = parent.speed_slider.value() / 100.0
-            else:
-                attrs["speed"] = getattr(parent, "speed", 1.0)
-            # save_option
-            attrs["save_option"] = getattr(parent, "save_option", "")
-            # output_folder
-            attrs["output_folder"] = getattr(parent, "selected_output_folder", "")
-            # subtitle_mode
-            if hasattr(parent, "get_actual_subtitle_mode"):
-                attrs["subtitle_mode"] = parent.get_actual_subtitle_mode()
-            else:
-                attrs["subtitle_mode"] = getattr(parent, "subtitle_mode", "")
-            # output_format
-            attrs["output_format"] = getattr(parent, "selected_format", "")
-            # total_char_count
-            attrs["total_char_count"] = getattr(parent, "char_count", "")
-            # replace_single_newlines
-            attrs["replace_single_newlines"] = getattr(
-                parent, "replace_single_newlines", False
-            )
-        else:
-            # fallback: empty values
-            attrs = {
-                k: ""
-                for k in [
-                    "lang_code",
-                    "speed",
-                    "voice",
-                    "save_option",
-                    "output_folder",
-                    "subtitle_mode",
-                    "output_format",
-                    "total_char_count",
-                    "replace_single_newlines",
-                ]
-            }
-        return attrs
-
-    def add_files_from_paths(self, file_paths):
-        from abogen.utils import calculate_text_length
-        from PyQt5.QtWidgets import QMessageBox
-        import os
-
-        current_attrs = self.get_current_attributes()
-        duplicates = []
-        for file_path in file_paths:
-
-            class QueueItem:
-                pass
-
-            item = QueueItem()
-            item.file_name = file_path
-            item.save_base_path = file_path  # For .txt files, processing and save paths are the same
-            for attr, value in current_attrs.items():
-                setattr(item, attr, value)
-            # Read file content and calculate total_char_count using calculate_text_length
-            try:
-                with open(file_path, "r", encoding="utf-8", errors="ignore") as f:
-                    file_content = f.read()
-                item.total_char_count = calculate_text_length(file_content)
-            except Exception:
-                item.total_char_count = 0
-            # Prevent adding duplicate items to the queue (check all attributes)
-            is_duplicate = False
-            for queued_item in self.queue:
-                if (
-                    getattr(queued_item, "file_name", None)
-                    == getattr(item, "file_name", None)
-                    and getattr(queued_item, "lang_code", None)
-                    == getattr(item, "lang_code", None)
-                    and getattr(queued_item, "speed", None)
-                    == getattr(item, "speed", None)
-                    and getattr(queued_item, "voice", None)
-                    == getattr(item, "voice", None)
-                    and getattr(queued_item, "save_option", None)
-                    == getattr(item, "save_option", None)
-                    and getattr(queued_item, "output_folder", None)
-                    == getattr(item, "output_folder", None)
-                    and getattr(queued_item, "subtitle_mode", None)
-                    == getattr(item, "subtitle_mode", None)
-                    and getattr(queued_item, "output_format", None)
-                    == getattr(item, "output_format", None)
-                    and getattr(queued_item, "total_char_count", None)
-                    == getattr(item, "total_char_count", None)
-                    and getattr(queued_item, "replace_single_newlines", False)
-                    == getattr(item, "replace_single_newlines", False)
-                    and getattr(queued_item, "save_base_path", None)
-                    == getattr(item, "save_base_path", None)
-                ):
-                    is_duplicate = True
-                    break
-            if is_duplicate:
-                duplicates.append(os.path.basename(file_path))
-                continue
-            self.queue.append(item)
-        if duplicates:
-            QMessageBox.warning(
-                self,
-                "Duplicate Item(s)",
-                f"Skipping {len(duplicates)} file(s) with the same attributes, already in the queue.",
-            )
-        self.process_queue()
-        self.update_button_states()
-
-    def add_more_files(self):
-        from PyQt5.QtWidgets import QFileDialog
-        from abogen.utils import calculate_text_length  # import the function
-
-        # Only allow .txt files
-        files, _ = QFileDialog.getOpenFileNames(
-            self, "Select .txt files", "", "Text Files (*.txt)"
-        )
-        if not files:
-            return
-        self.add_files_from_paths(files)
-
-    def resizeEvent(self, event):
-        super().resizeEvent(event)
-        if hasattr(self, "empty_overlay"):
-            self.empty_overlay.resize(self.listwidget.size())
-
-    def update_button_states(self):
-        # Enable Remove if at least one item is selected, else disable
-        if hasattr(self, "remove_button"):
-            selected_count = len(self.listwidget.selectedItems())
-            self.remove_button.setEnabled(selected_count > 0)
-            if selected_count > 1:
-                self.remove_button.setText(f"Remove selected ({selected_count})")
-            else:
-                self.remove_button.setText("Remove selected")
-        # Disable Clear if queue is empty
-        if hasattr(self, "clear_button"):
-            self.clear_button.setEnabled(bool(self.queue))
-
-    def show_context_menu(self, pos):
-        from PyQt5.QtWidgets import QMenu, QAction
-        from PyQt5.QtGui import QDesktopServices
-        from PyQt5.QtCore import QUrl
-        import os
-
-        global_pos = self.listwidget.viewport().mapToGlobal(pos)
-        selected_items = self.listwidget.selectedItems()
-        menu = QMenu(self)
-        if len(selected_items) == 1:
-            # Add Remove action
-            remove_action = QAction("Remove this item", self)
-            remove_action.triggered.connect(self.remove_item)
-            menu.addAction(remove_action)
-
-            # Add Open file action
-            open_file_action = QAction("Open file", self)
-
-            def open_file():
-                from PyQt5.QtWidgets import QMessageBox
-
-                item = selected_items[0]
-                paths = item.data(Qt.UserRole)
-                if isinstance(paths, dict):
-                    file_path = paths.get('display_path', paths.get('processing_path', ''))
-                else:
-                    file_path = paths  # Fallback for old format
-                
-                # Find the queue item
-                for q in self.queue:
-                    if (getattr(q, "save_base_path", None) == file_path or 
-                        q.file_name == file_path):
-                        target_path = getattr(q, "save_base_path", None) or q.file_name
-                        if not os.path.exists(target_path):
-                            QMessageBox.warning(
-                                self, "File Not Found", f"The file does not exist."
-                            )
-                            return
-                        QDesktopServices.openUrl(QUrl.fromLocalFile(target_path))
-                        break
-
-            open_file_action.triggered.connect(open_file)
-            menu.addAction(open_file_action)
-
-            # Add Go to folder action
-            # If the queued item represents a converted document (markdown, pdf, epub)
-            # show two actions: Go to processed file (the cached .txt) and Go to input file (original source)
-            item = selected_items[0]
-            paths = item.data(Qt.UserRole)
-            if isinstance(paths, dict):
-                display_path = paths.get('display_path', '')
-                processing_path = paths.get('processing_path', '')
-            else:
-                display_path = paths
-                processing_path = paths
-
-            doc_exts = ('.md', '.markdown', '.pdf', '.epub')
-            is_document_input = (
-                isinstance(display_path, str) and display_path.lower().endswith(doc_exts)
-            ) or (
-                isinstance(processing_path, str) and processing_path.lower().endswith(doc_exts)
-            )
-
-            from PyQt5.QtWidgets import QMessageBox
-
-            def open_folder_for(path_label: str):
-                # path_label should be either 'display' or 'processing'
-                p = display_path if path_label == 'display' else processing_path
-                if not p:
-                    QMessageBox.warning(self, "File Not Found", "Path is not available.")
-                    return
-                # If the stored path is the display path (original) but the actual file may be
-                # stored on the queue object differently, try to resolve via the queue entry.
-                target_path = None
-                for q in self.queue:
-                    if getattr(q, 'save_base_path', None) == display_path or q.file_name == display_path:
-                        if path_label == 'display':
-                            target_path = getattr(q, 'save_base_path', None) or q.file_name
-                        else:
-                            target_path = q.file_name
-                        break
-                    if getattr(q, 'save_base_path', None) == processing_path or q.file_name == processing_path:
-                        if path_label == 'display':
-                            target_path = getattr(q, 'save_base_path', None) or q.file_name
-                        else:
-                            target_path = q.file_name
-                        break
-                # Fallback to the raw path if resolution failed
-                if not target_path:
-                    target_path = p
-
-                if not os.path.exists(target_path):
-                    QMessageBox.warning(self, "File Not Found", f"The file does not exist: {target_path}")
-                    return
-                folder = os.path.dirname(target_path)
-                if os.path.exists(folder):
-                    QDesktopServices.openUrl(QUrl.fromLocalFile(folder))
-
-            if is_document_input:
-                processed_action = QAction("Go to processed file", self)
-                processed_action.triggered.connect(lambda: open_folder_for('processing'))
-                menu.addAction(processed_action)
-
-                input_action = QAction("Go to input file", self)
-                input_action.triggered.connect(lambda: open_folder_for('display'))
-                menu.addAction(input_action)
-            else:
-                # Default behavior for non-document inputs: single "Go to folder" action
-                go_to_folder_action = QAction("Go to folder", self)
-
-                def go_to_folder():
-                    item = selected_items[0]
-                    paths = item.data(Qt.UserRole)
-                    if isinstance(paths, dict):
-                        file_path = paths.get('display_path', paths.get('processing_path', ''))
-                    else:
-                        file_path = paths  # Fallback for old format
-                    # Find the queue item
-                    for q in self.queue:
-                        if (getattr(q, "save_base_path", None) == file_path or q.file_name == file_path):
-                            target_path = getattr(q, "save_base_path", None) or q.file_name
-                            if not os.path.exists(target_path):
-                                QMessageBox.warning(
-                                    self, "File Not Found", f"The file does not exist."
-                                )
-                                return
-                            folder = os.path.dirname(target_path)
-                            if os.path.exists(folder):
-                                QDesktopServices.openUrl(QUrl.fromLocalFile(folder))
-                            break
-
-                go_to_folder_action.triggered.connect(go_to_folder)
-                menu.addAction(go_to_folder_action)
-
-        elif len(selected_items) > 1:
-            remove_action = QAction(f"Remove selected ({len(selected_items)})", self)
-            remove_action.triggered.connect(self.remove_item)
-            menu.addAction(remove_action)
-        # Always add Clear Queue
-        clear_action = QAction("Clear Queue", self)
-        clear_action.triggered.connect(self.clear_queue)
-        menu.addAction(clear_action)
-        menu.exec_(global_pos)
-
-    def accept(self):
-        # Accept: keep changes
-        super().accept()
-
-    def reject(self):
-        # Cancel: restore original queue
-        from PyQt5.QtWidgets import QMessageBox
-
-        # Warn if user changed a lot (e.g., more than 1 items difference)
-        original_count = len(self._original_queue)
-        current_count = len(self.queue)
-        if abs(original_count - current_count) > 1:
-            reply = QMessageBox.question(
-                self,
-                "Confirm Cancel",
-                f"Are you sure you want to cancel and discard all changes?",
-                QMessageBox.Yes | QMessageBox.No,
-                QMessageBox.No,
-            )
-            if reply != QMessageBox.Yes:
-                return
-        self.queue.clear()
-        self.queue.extend(deepcopy(self._original_queue))
-        super().reject()
-
-    def keyPressEvent(self, event):
-        from PyQt5.QtCore import Qt
-
-        if event.key() == Qt.Key_Delete:
-            self.remove_item()
-        else:
-            super().keyPressEvent(event)