pax
660abe42e7
Use QMediaPlayer + QVideoSink to grab the first frame instead of shelling out to ffmpeg. Removes ffmpeg as a dependency entirely.
350 lines
13 KiB
Python
350 lines
13 KiB
Python
"""Library browser widget — browse saved files on disk."""
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from __future__ import annotations
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import logging
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import os
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import threading
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from pathlib import Path
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from PySide6.QtCore import Qt, Signal, QObject, QUrl, QTimer
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from PySide6.QtGui import QPixmap
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from PySide6.QtMultimedia import QMediaPlayer, QVideoSink, QVideoFrame
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from PySide6.QtMultimediaWidgets import QVideoWidget
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from PySide6.QtWidgets import (
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QWidget,
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QVBoxLayout,
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QHBoxLayout,
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QPushButton,
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QLabel,
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QComboBox,
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QMenu,
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QMessageBox,
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QApplication,
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)
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from ..core.config import saved_dir, saved_folder_dir, MEDIA_EXTENSIONS, thumbnails_dir
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from .grid import ThumbnailGrid
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log = logging.getLogger("booru")
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LIBRARY_THUMB_SIZE = 180
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class _LibThumbSignals(QObject):
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thumb_ready = Signal(int, str)
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video_thumb_request = Signal(int, str, str) # index, source, dest
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class LibraryView(QWidget):
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"""Browse files saved to the library on disk."""
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file_selected = Signal(str)
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file_activated = Signal(str)
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def __init__(self, db=None, parent: QWidget | None = None) -> None:
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super().__init__(parent)
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self._db = db
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self._files: list[Path] = []
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self._signals = _LibThumbSignals()
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self._signals.thumb_ready.connect(
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self._on_thumb_ready, Qt.ConnectionType.QueuedConnection
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)
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self._signals.video_thumb_request.connect(
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self._capture_video_thumb, Qt.ConnectionType.QueuedConnection
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)
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layout = QVBoxLayout(self)
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layout.setContentsMargins(0, 0, 0, 0)
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# --- Top bar ---
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top = QHBoxLayout()
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top.setContentsMargins(0, 0, 0, 0)
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self._folder_combo = QComboBox()
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self._folder_combo.setMinimumWidth(140)
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self._folder_combo.currentTextChanged.connect(lambda _: self.refresh())
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top.addWidget(self._folder_combo)
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self._sort_combo = QComboBox()
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self._sort_combo.addItems(["Date", "Name", "Size"])
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self._sort_combo.setFixedWidth(80)
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self._sort_combo.currentTextChanged.connect(lambda _: self.refresh())
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top.addWidget(self._sort_combo)
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refresh_btn = QPushButton("Refresh")
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refresh_btn.setFixedWidth(65)
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refresh_btn.clicked.connect(self.refresh)
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top.addWidget(refresh_btn)
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top.addStretch(1)
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layout.addLayout(top)
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# --- Count label ---
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self._count_label = QLabel()
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layout.addWidget(self._count_label)
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# --- Grid ---
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self._grid = ThumbnailGrid()
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self._grid.post_selected.connect(self._on_selected)
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self._grid.post_activated.connect(self._on_activated)
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self._grid.context_requested.connect(self._on_context_menu)
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self._grid.multi_context_requested.connect(self._on_multi_context_menu)
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layout.addWidget(self._grid)
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# ------------------------------------------------------------------
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# Public
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# ------------------------------------------------------------------
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def refresh(self) -> None:
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"""Scan the selected folder, sort, display thumbnails."""
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root = saved_dir()
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if not root.exists() or not os.access(root, os.R_OK):
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self._count_label.setText("Library directory unreachable")
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self._count_label.setStyleSheet("color: #ff4444; font-weight: bold;")
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self._grid.set_posts(0)
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self._files = []
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return
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self._refresh_folders()
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self._files = self._scan_files()
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self._sort_files()
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if self._files:
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self._count_label.setText(f"{len(self._files)} files")
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self._count_label.setStyleSheet("")
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else:
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self._count_label.setText("Library empty or directory unreachable")
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self._count_label.setStyleSheet("color: #ff4444;")
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thumbs = self._grid.set_posts(len(self._files))
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lib_thumb_dir = thumbnails_dir() / "library"
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lib_thumb_dir.mkdir(parents=True, exist_ok=True)
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for i, (filepath, thumb) in enumerate(zip(self._files, thumbs)):
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thumb._cached_path = str(filepath)
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thumb.setToolTip(filepath.name)
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if not filepath.exists():
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thumb.set_missing(True)
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continue
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thumb.set_saved_locally(True)
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cached_thumb = lib_thumb_dir / f"{filepath.stem}.jpg"
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if cached_thumb.exists():
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pix = QPixmap(str(cached_thumb))
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if not pix.isNull():
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thumb.set_pixmap(pix)
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continue
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self._generate_thumb_async(i, filepath, cached_thumb)
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# ------------------------------------------------------------------
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# Folder list
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# ------------------------------------------------------------------
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def _refresh_folders(self) -> None:
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current = self._folder_combo.currentText()
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self._folder_combo.blockSignals(True)
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self._folder_combo.clear()
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self._folder_combo.addItem("All Files")
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self._folder_combo.addItem("Unsorted")
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root = saved_dir()
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if root.is_dir():
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for entry in sorted(root.iterdir()):
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if entry.is_dir():
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self._folder_combo.addItem(entry.name)
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idx = self._folder_combo.findText(current)
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if idx >= 0:
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self._folder_combo.setCurrentIndex(idx)
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self._folder_combo.blockSignals(False)
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# ------------------------------------------------------------------
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# File scanning
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# ------------------------------------------------------------------
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def _scan_files(self) -> list[Path]:
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root = saved_dir()
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folder_text = self._folder_combo.currentText()
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if folder_text == "All Files":
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return self._collect_recursive(root)
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elif folder_text == "Unsorted":
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return self._collect_top_level(root)
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else:
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sub = root / folder_text
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if sub.is_dir():
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return self._collect_top_level(sub)
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return []
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@staticmethod
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def _collect_recursive(directory: Path) -> list[Path]:
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files: list[Path] = []
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for dirpath, _dirnames, filenames in os.walk(directory):
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for name in filenames:
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p = Path(dirpath) / name
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if p.suffix.lower() in MEDIA_EXTENSIONS:
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files.append(p)
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return files
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@staticmethod
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def _collect_top_level(directory: Path) -> list[Path]:
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if not directory.is_dir():
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return []
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return [
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p
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for p in directory.iterdir()
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if p.is_file() and p.suffix.lower() in MEDIA_EXTENSIONS
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]
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# ------------------------------------------------------------------
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# Sorting
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# ------------------------------------------------------------------
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def _sort_files(self) -> None:
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mode = self._sort_combo.currentText()
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if mode == "Name":
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self._files.sort(key=lambda p: p.name.lower())
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elif mode == "Size":
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self._files.sort(key=lambda p: p.stat().st_size, reverse=True)
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else:
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# Date — newest first
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self._files.sort(key=lambda p: p.stat().st_mtime, reverse=True)
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# ------------------------------------------------------------------
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# Async thumbnail generation
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# ------------------------------------------------------------------
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_VIDEO_EXTS = {".mp4", ".webm", ".mkv", ".avi", ".mov"}
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def _generate_thumb_async(
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self, index: int, source: Path, dest: Path
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) -> None:
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if source.suffix.lower() in self._VIDEO_EXTS:
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# Video thumbnails must run on main thread (Qt requirement)
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self._signals.video_thumb_request.emit(index, str(source), str(dest))
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return
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def _work() -> None:
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try:
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from PIL import Image
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with Image.open(source) as img:
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img.thumbnail(
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(LIBRARY_THUMB_SIZE, LIBRARY_THUMB_SIZE), Image.LANCZOS
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)
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if img.mode in ("RGBA", "P"):
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img = img.convert("RGB")
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img.save(str(dest), "JPEG", quality=85)
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if dest.exists():
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self._signals.thumb_ready.emit(index, str(dest))
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except Exception as e:
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log.warning("Library thumb %d (%s) failed: %s", index, source.name, e)
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threading.Thread(target=_work, daemon=True).start()
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def _capture_video_thumb(self, index: int, source: str, dest: str) -> None:
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"""Grab first frame from video using Qt's QMediaPlayer + QVideoSink."""
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player = QMediaPlayer()
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sink = QVideoSink()
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player.setVideoSink(sink)
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def _on_frame(frame: QVideoFrame):
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if frame.isValid():
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img = frame.toImage()
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if not img.isNull():
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scaled = img.scaled(
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LIBRARY_THUMB_SIZE, LIBRARY_THUMB_SIZE,
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Qt.AspectRatioMode.KeepAspectRatio,
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Qt.TransformationMode.SmoothTransformation,
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)
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scaled.save(dest, "JPEG", 85)
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self._signals.thumb_ready.emit(index, dest)
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sink.videoFrameChanged.disconnect(_on_frame)
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player.stop()
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player.deleteLater()
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sink.videoFrameChanged.connect(_on_frame)
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player.setSource(QUrl.fromLocalFile(source))
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player.play()
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# Pause immediately — we just need one frame
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QTimer.singleShot(100, player.pause)
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def _on_thumb_ready(self, index: int, path: str) -> None:
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thumbs = self._grid._thumbs
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if 0 <= index < len(thumbs):
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pix = QPixmap(path)
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if not pix.isNull():
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thumbs[index].set_pixmap(pix)
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# ------------------------------------------------------------------
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# Selection signals
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# ------------------------------------------------------------------
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def _on_selected(self, index: int) -> None:
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if 0 <= index < len(self._files):
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self.file_selected.emit(str(self._files[index]))
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def _on_activated(self, index: int) -> None:
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if 0 <= index < len(self._files):
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self.file_activated.emit(str(self._files[index]))
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def _on_context_menu(self, index: int, pos) -> None:
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if index < 0 or index >= len(self._files):
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return
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filepath = self._files[index]
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from PySide6.QtGui import QDesktopServices
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from PySide6.QtCore import QUrl
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menu = QMenu(self)
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open_default = menu.addAction("Open in Default App")
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open_folder = menu.addAction("Open Containing Folder")
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menu.addSeparator()
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copy_path = menu.addAction("Copy File Path")
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menu.addSeparator()
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delete_action = menu.addAction("Delete from Library")
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action = menu.exec(pos)
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if not action:
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return
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if action == open_default:
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QDesktopServices.openUrl(QUrl.fromLocalFile(str(filepath)))
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elif action == open_folder:
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QDesktopServices.openUrl(QUrl.fromLocalFile(str(filepath.parent)))
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elif action == copy_path:
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QApplication.clipboard().setText(str(filepath))
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elif action == delete_action:
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reply = QMessageBox.question(
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self, "Confirm", f"Delete {filepath.name} from library?",
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QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No,
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)
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if reply == QMessageBox.StandardButton.Yes:
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filepath.unlink(missing_ok=True)
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# Also remove cached thumbnail
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lib_thumb = thumbnails_dir() / "library" / f"{filepath.stem}.jpg"
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lib_thumb.unlink(missing_ok=True)
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self.refresh()
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def _on_multi_context_menu(self, indices: list, pos) -> None:
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files = [self._files[i] for i in indices if 0 <= i < len(self._files)]
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if not files:
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return
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menu = QMenu(self)
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delete_all = menu.addAction(f"Delete {len(files)} files from Library")
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action = menu.exec(pos)
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if not action:
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return
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if action == delete_all:
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reply = QMessageBox.question(
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self, "Confirm", f"Delete {len(files)} files from library?",
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QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No,
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)
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if reply == QMessageBox.StandardButton.Yes:
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for f in files:
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f.unlink(missing_ok=True)
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lib_thumb = thumbnails_dir() / "library" / f"{f.stem}.jpg"
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lib_thumb.unlink(missing_ok=True)
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self.refresh()
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