82 lines
3.4 KiB
Python
82 lines
3.4 KiB
Python
# Copyright 2022 (c) Anna Schumaker.
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"""A sidebar Section Header widget."""
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from gi.repository import GObject
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from gi.repository import Gtk
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from gi.repository import Adw
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from .title import Title
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class Header(Gtk.Box):
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"""The Section Header."""
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icon_name = GObject.Property(type=str)
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title = GObject.Property(type=str)
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subtitle = GObject.Property(type=str)
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pending = GObject.Property(type=bool, default=False)
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progress = GObject.Property(type=float)
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active = GObject.Property(type=bool, default=False)
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extra_widget = GObject.Property(type=Gtk.Widget)
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reveal_widget = GObject.Property(type=Gtk.Widget)
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animation = GObject.Property(type=Gtk.RevealerTransitionType,
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default=Gtk.RevealerTransitionType.SLIDE_UP)
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def __init__(self, icon_name: str = "image-missing",
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title: str = "", subtitle: str = "",
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extra_widget: Gtk.Widget = None, **kwargs):
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"""Initialize a row Header widget."""
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super().__init__(icon_name=icon_name, extra_widget=extra_widget,
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title=title, subtitle=subtitle,
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orientation=Gtk.Orientation.VERTICAL, **kwargs)
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self._overlay = Gtk.Overlay(css_name="button")
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self._box = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, spacing=12)
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self._icon = Gtk.Image(icon_name=self.icon_name,
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icon_size=Gtk.IconSize.LARGE)
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self._title = Title(title=self.title, subtitle=self.subtitle)
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self._extra = Adw.Bin(child=self.extra_widget, valign=Gtk.Align.CENTER)
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self._arrow = Gtk.Image(icon_name="go-down-symbolic")
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self._progress = Gtk.ProgressBar(valign=Gtk.Align.END,
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visible=self.pending)
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self._revealer = Gtk.Revealer(transition_type=self.animation)
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self._clicked = Gtk.GestureClick()
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self._arrow.add_css_class("emmental-sidebar-arrow")
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self._progress.add_css_class("osd")
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self.bind_property("icon-name", self._icon, "icon-name")
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self.bind_property("title", self._title, "title")
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self.bind_property("subtitle", self._title, "subtitle")
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self.bind_property("extra-widget", self._extra, "child")
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self.bind_property("pending", self._progress, "visible")
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self.bind_property("progress", self._progress, "fraction")
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self.bind_property("active", self._revealer, "reveal-child")
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self.bind_property("active", self._revealer, "vexpand")
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self.bind_property("reveal-widget", self._revealer, "child")
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self.bind_property("animation", self._revealer, "transition-type")
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self._clicked.connect("released", self.activate)
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self.connect("notify::active", self.__notify_active)
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self._box.append(self._icon)
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self._box.append(self._title)
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self._box.append(self._extra)
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self._box.append(self._arrow)
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self._overlay.set_child(self._box)
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self._overlay.add_overlay(self._progress)
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self._overlay.add_controller(self._clicked)
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self.append(self._overlay)
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self.append(self._revealer)
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def __notify_active(self, header, param) -> None:
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if self.active:
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self._arrow.set_state_flags(Gtk.StateFlags.CHECKED, False)
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else:
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self._arrow.unset_state_flags(Gtk.StateFlags.CHECKED)
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def activate(self, *args) -> None:
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"""Activate the Header."""
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self.active = True
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