279 lines
8.9 KiB
Python
279 lines
8.9 KiB
Python
from typing import ClassVar
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import gi
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from fabric.hyprland.service import HyprlandEvent
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from fabric.hyprland.widgets import get_hyprland_connection
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from fabric.widgets.box import Box
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from fabric.widgets.wayland import WaylandWindow
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from fabric.widgets.widget import Widget
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from gi.repository import Gdk, GLib, GObject, GtkLayerShell
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from loguru import logger
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gi.require_versions(
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{"Gtk": "3.0", "Gdk": "3.0", "GtkLayerShell": "0.1", "GObject": "2.0"}
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)
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class PopoverManager:
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"""Singleton manager to handle shared resources for popovers."""
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_instance = None
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@classmethod
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def get_instance(cls):
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if cls._instance is None:
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cls._instance = cls()
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return cls._instance
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def __init__(self):
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# Shared overlay window for all popovers
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self.overlay = WaylandWindow(
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name="popover-overlay",
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style_classes="popover-overlay",
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title="fabric-shell-popover-overlay",
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anchor="left top right bottom",
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margin="-50px 0px 0px 0px",
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exclusivity="auto",
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layer="overlay",
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type="top-level",
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visible=False,
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all_visible=False,
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style="background-color: rgba(0,0,0,0.0);",
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)
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# Add empty box so GTK doesn't complain
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self.overlay.add(Box())
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# Keep track of active popovers
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self.active_popover = None
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self.available_windows = []
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# Close popover when clicking overlay
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self.overlay.connect("button-press-event", self._on_overlay_clicked)
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self._hyprland_connection = get_hyprland_connection()
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self._hyprland_connection.connect(
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"event::focusedmonv2", self._on_monitor_change
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)
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def _on_monitor_change(self, _, event: HyprlandEvent):
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if self.active_popover:
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self.active_popover.hide_popover()
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return True
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def _on_overlay_clicked(self, widget, event):
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if self.active_popover:
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self.active_popover.hide_popover()
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return True
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def get_popover_window(self):
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"""Get an available popover window or create a new one."""
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if self.available_windows:
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return self.available_windows.pop()
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window = WaylandWindow(
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type="popup",
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layer="overlay",
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name="popover-window",
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anchor="left top",
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visible=False,
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all_visible=False,
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)
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GtkLayerShell.set_keyboard_interactivity(window, True)
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window.set_keep_above(True)
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return window
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def return_popover_window(self, window):
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"""Return a popover window to the pool."""
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# Remove any children
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for child in window.get_children():
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window.remove(child)
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window.hide()
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# Only keep a reasonable number of windows in the pool
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if len(self.available_windows) < 5:
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self.available_windows.append(window)
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else:
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# Let the window be garbage collected
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window.destroy()
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def activate_popover(self, popover):
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"""Set the active popover and show overlay."""
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if self.active_popover and self.active_popover != popover:
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self.active_popover.hide_popover()
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self.active_popover = popover
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self.overlay.show()
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@GObject.Signal(
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flags=GObject.SignalFlags.RUN_LAST, return_type=GObject.TYPE_NONE, arg_types=()
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)
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def popover_opened(widget: Widget): ...
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@GObject.Signal(
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flags=GObject.SignalFlags.RUN_LAST, return_type=GObject.TYPE_NONE, arg_types=()
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)
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def popover_closed(widget: Widget): ...
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@GObject.type_register
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class Popover(Widget):
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"""Memory-efficient popover implementation."""
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__gsignals__: ClassVar = {
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"popover-opened": (GObject.SignalFlags.RUN_LAST, GObject.TYPE_NONE, ()),
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"popover-closed": (GObject.SignalFlags.RUN_LAST, GObject.TYPE_NONE, ()),
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}
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def __init__(
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self,
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point_to,
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content_factory=None,
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content=None,
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):
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super().__init__()
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"""
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Initialize a popover.
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Args:
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content_factory: Function that returns content widget when called
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point_to: Widget to position the popover next to
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"""
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self._content_factory = content_factory
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self._point_to = point_to
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self._content_window = None
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self._content = content
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self._visible = False
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self._destroy_timeout = None
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# Use weak reference to avoid circular reference issues
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self._manager = PopoverManager.get_instance()
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def set_content_factory(self, content_factory):
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"""Set the content factory for the popover."""
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self._content_factory = content_factory
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def set_content(self, content):
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"""Set the content for the popover."""
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self._content = content
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def _on_key_press(self, widget, event):
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if event.keyval == Gdk.KEY_Escape and self._manager.active_popover:
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self._manager.active_popover.hide_popover()
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def open(self):
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if self._destroy_timeout is not None:
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GLib.source_remove(self._destroy_timeout)
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self._destroy_timeout = None
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if not self._content_window:
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try:
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self._create_popover()
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except Exception as e:
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logger.error(f"Could not create popover! Error: {e}")
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else:
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self._manager.activate_popover(self)
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self._content_window.show()
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self._content_window.steal_input()
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self._visible = True
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self.emit("popover-opened")
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def _calculate_margins(self):
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widget_allocation = self._point_to.get_allocation()
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popover_size = self._content_window.get_size()
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display = Gdk.Display.get_default()
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screen = display.get_default()
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monitor_at_window = screen.get_monitor_at_window(self._point_to.get_window())
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monitor_geometry = monitor_at_window.get_geometry()
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x = (
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widget_allocation.x
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+ (widget_allocation.width / 2)
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- (popover_size.width / 2)
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)
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# Position below the button instead of above
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y = widget_allocation.y + widget_allocation.height + 5 # 5px gap below button
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# Ensure popover stays within monitor bounds
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if x <= 0:
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x = widget_allocation.x
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elif x + popover_size.width >= monitor_geometry.width:
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x = widget_allocation.x - popover_size.width + widget_allocation.width
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# If popover would go below monitor, position it above the button
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if y + popover_size.height > monitor_geometry.y + monitor_geometry.height:
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y = widget_allocation.y - popover_size.height - 5 # 5px gap above button
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return [y, 0, 0, x]
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def set_position(self, position: tuple[int, int, int, int] | None = None):
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if position is None:
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self._content_window.set_margin(self._calculate_margins())
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return False
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self._content_window.set_margin(position)
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return False
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def _on_content_ready(self, widget, event):
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self.set_position()
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def _create_popover(self):
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if self._content is None and self._content_factory is not None:
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self._content = self._content_factory()
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# Get a window from the pool
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self._content_window = self._manager.get_popover_window()
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# This is a hack to fix wrong positioning for widgets that are not rendered
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# immediately (e.g., Gtk.Calendar())
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self._content.connect("draw", self._on_content_ready)
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# Add content to window
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self._content_window.add(
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Box(style_classes="popover-content", children=self._content)
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)
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self._content_window.connect("focus-out-event", self._on_popover_focus_out)
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self._content_window.connect("key-press-event", self._on_key_press)
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self._manager.activate_popover(self)
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self._content_window.show()
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self._content_window.steal_input()
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self._visible = True
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def _on_popover_focus_out(self, widget, event):
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# This helps with keyboard focus issues
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GLib.timeout_add(100, self.hide_popover)
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return False
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def hide_popover(self):
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if not self._visible or not self._content_window:
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return False
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self._content_window.hide()
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self._manager.overlay.hide()
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self._visible = False
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if not self._destroy_timeout:
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self._destroy_timeout = GLib.timeout_add(1000 * 5, self._destroy_popover)
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self.emit("popover-closed")
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return False
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def _destroy_popover(self):
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"""Return resources to the pool and clear references."""
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self._destroy_timeout = None
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self._visible = False
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if self._content_window:
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# Return window to the pool
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self._manager.return_popover_window(self._content_window)
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self._content_window = None
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# Allow content to be garbage collected if no longer needed
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self._content = None
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return False |