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apostrophe/apostrophe/headerbars.py

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# -*- Mode: Python; coding: utf-8; indent-tabs-mode: nil; tab-width: 4 -*-
# BEGIN LICENSE
# Copyright (C) 2019, Wolf Vollprecht <w.vollprecht@gmail.com>
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
# END LICENSE
"""Manage all the headerbars related stuff
"""
import gi
from gettext import gettext as _
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, GLib
from apostrophe.helpers import get_descendant
from apostrophe.settings import Settings
class BaseHeaderbar:
"""Base class for all headerbars
"""
# preview modes
FULL_WIDTH = 0
HALF_WIDTH = 1
HALF_HEIGHT = 2
WINDOWED = 3
def __init__(self, app):
self.settings = Settings.new()
self.builder = Gtk.Builder()
self.builder.add_from_resource(
"/de/wolfvollprecht/UberWriter/ui/Headerbar.ui")
self.builder.add_from_resource(
"/de/wolfvollprecht/UberWriter/ui/ExportPopover.ui")
self.hb = self.builder.get_object(
"Headerbar")
self.hb_revealer = self.builder.get_object(
"titlebar_revealer")
self.preview_toggle_revealer = self.builder.get_object(
"preview_switch_revealer")
self.preview_switcher_icon = self.builder.get_object(
"preview_switch_toggle_icon")
self.__populate_layout_switcher_menu()
self.update_preview_layout_icon()
self.sync_scroll_switch = self.builder.get_object("sync_scroll_switch")
self.sync_scroll_switch.set_active(self.settings.get_value("sync-scroll"))
self.sync_scroll_switch.connect("state-set", self.__on_sync_scroll)
self.menu_button = self.builder.get_object("menu_button")
self.recents_button = self.builder.get_object("recents_button")
self.export_button = self.builder.get_object("export_button")
export_popover = self.builder.get_object("export_menu")
self.preview_switch_button = self.builder.get_object("preview_switch_button")
self.export_button.set_popover(export_popover)
add_menus(self, app)
settings = Gtk.Settings.get_default()
# TODO: use walrust operator whenever Python3.8 lands on SDK
# if global_dark:= settings.props.gtk_theme_name.endswith("-dark"):
global_dark = settings.props.gtk_theme_name.endswith("-dark")
if global_dark:
self.light_button.set_sensitive(False)
self.light_button.set_tooltip_text(_(
"Light mode isn't available while using a dark global theme"))
self.dark_button.set_active(self.settings.get_boolean("dark-mode") or global_dark)
self.light_button.connect("toggled", self.__on_dark_mode)
self.select_preview_layout_row()
def update_preview_layout_icon(self):
mode = self.settings.get_enum("preview-mode")
self.preview_switcher_icon.set_from_icon_name(
self.__get_icon_for_preview_mode(mode), 4)
def select_preview_layout_row(self):
mode = self.settings.get_enum("preview-mode")
row = self.preview_menu.get_row_at_index(mode)
self.preview_menu.select_row(row)
def __populate_layout_switcher_menu(self):
self.preview_menu = self.builder.get_object("preview_switch_options")
modes = self.settings.props.settings_schema.get_key("preview-mode").get_range()[1]
for i, mode in enumerate(modes):
item_builder = Gtk.Builder()
item_builder.add_from_resource(
"/de/wolfvollprecht/UberWriter/ui/PreviewLayoutSwitcherItem.ui")
menu_item = item_builder.get_object("switcherItem")
menu_item.label = item_builder.get_object("label")
menu_item.label.set_text(self.__get_text_for_preview_mode(i))
menu_item.icon = item_builder.get_object("icon")
menu_item.icon.set_from_icon_name(self.__get_icon_for_preview_mode(i), 16)
menu_item.set_action_name("app.preview_mode")
menu_item.set_action_target_value(GLib.Variant.new_string(mode))
menu_item.show_all()
self.preview_menu.insert(menu_item, -1)
def __get_text_for_preview_mode(self, mode):
if mode == self.FULL_WIDTH:
return _("Full-Width")
elif mode == self.HALF_WIDTH:
return _("Half-Width")
elif mode == self.HALF_HEIGHT:
return _("Half-Height")
elif mode == self.WINDOWED:
return _("Windowed")
else:
raise ValueError("Unknown preview mode {}".format(mode))
def __get_icon_for_preview_mode(self, mode):
if mode == self.FULL_WIDTH:
return "preview-layout-full-width-symbolic"
elif mode == self.HALF_WIDTH:
return "preview-layout-half-width-symbolic"
elif mode == self.HALF_HEIGHT:
return "preview-layout-half-height-symbolic"
elif mode == self.WINDOWED:
return "preview-layout-windowed-symbolic"
else:
raise ValueError("Unknown preview mode {}".format(mode))
def __on_sync_scroll(self, _, state):
self.settings.set_boolean("sync-scroll", state)
return False
def __on_dark_mode(self, _):
self.settings.set_boolean("dark-mode", self.dark_button.get_active())
class MainHeaderbar(BaseHeaderbar): # pylint: disable=too-few-public-methods
"""Sets up the main application headerbar
"""
def __init__(self, app):
BaseHeaderbar.__init__(self, app)
self.hb.set_show_close_button(True)
self.hb_revealer.props.transition_duration = 0
class FullscreenHeaderbar(BaseHeaderbar):
"""Sets up and manages the fullscreen headerbar and his events
"""
def __init__(self, fs_builder, app):
BaseHeaderbar.__init__(self, app)
self.hb.set_show_close_button(False)
self.exit_fs_button = self.builder.get_object("exit_fs_button")
self.exit_fs_button.set_visible(True)
self.events = fs_builder.get_object("FullscreenEventbox")
self.events.add(self.hb_revealer)
# this is a little tricky
# we show hb when the cursor enters an area of 1px at the top
# as the hb is shown the height of the eventbox grows to accomodate it
self.events.connect('enter_notify_event', self.show_fs_hb)
self.events.connect('leave_notify_event', self.hide_fs_hb)
self.menu_button.get_popover().connect('closed', self.hide_fs_hb)
self.recents_button.get_popover().connect('closed', self.hide_fs_hb)
self.export_button.get_popover().connect('closed', self.hide_fs_hb)
self.preview_switch_button.get_popover().connect('closed', self.hide_fs_hb)
def show_fs_hb(self, _widget=None, _data=None):
"""show headerbar of the fullscreen mode
"""
self.hb_revealer.set_reveal_child(True)
def hide_fs_hb(self, _widget=None, _data=None):
"""hide headerbar of the fullscreen mode
"""
if (self.menu_button.get_active() or
self.recents_button.get_active() or
self.export_button.get_active() or
self.preview_switch_button.get_active()):
pass
else:
self.hb_revealer.set_reveal_child(False)
class DummyHeaderbar(BaseHeaderbar):
"""Sets up and manages the dummy headerbar wich fades away when entering
the free-distracting mode
"""
def __init__(self, app):
BaseHeaderbar.__init__(self, app)
self.hb.set_show_close_button(True)
self.hb_revealer.set_transition_type(
Gtk.RevealerTransitionType.CROSSFADE)
self.hb_revealer.set_reveal_child(False)
self.menu_button.set_sensitive(True)
self.recents_button.set_sensitive(True)
def show_dm_hb(self):
"""show dummy headerbar:
It appears instantly to inmediatly fade away
"""
self.hb_revealer.show()
self.hb_revealer.set_transition_duration(0)
self.hb_revealer.set_reveal_child(True)
self.hb_revealer.set_transition_duration(600)
self.hb_revealer.set_reveal_child(False)
def hide_dm_hb(self):
"""hide dummy headerbar
It appears slowly to inmediatly dissapear
"""
self.hb_revealer.set_transition_duration(400)
self.hb_revealer.set_reveal_child(True)
GLib.timeout_add(400, self.hide_dm_hb_with_wait)
def hide_dm_hb_with_wait(self):
self.hb_revealer.set_transition_duration(0)
self.hb_revealer.set_reveal_child(False)
self.hb_revealer.hide()
return False
class PreviewHeaderbar:
"""Sets up the preview headerbar
"""
def __init__(self):
self.hb = Gtk.HeaderBar().new()
self.hb.props.show_close_button = True
self.hb.get_style_context().add_class("titlebar")
self.hb_revealer = Gtk.Revealer(name="titlebar-revealer-pv")
self.hb_revealer.add(self.hb)
self.hb_revealer.props.transition_duration = 750
self.hb_revealer.set_transition_type(
Gtk.RevealerTransitionType.CROSSFADE)
self.hb_revealer.show()
self.hb_revealer.set_reveal_child(True)
self.hb_container = Gtk.Frame(name="titlebar-container")
self.hb_container.set_shadow_type(Gtk.ShadowType.NONE)
self.hb_container.add(self.hb_revealer)
self.hb_container.show()
self.hb.show_all()
def add_menus(headerbar, app):
""" Add menu models to hb buttons
"""
# Add menu model to the menu button
builder_window_menu = Gtk.Builder()
builder_window_menu.add_from_resource(
"/de/wolfvollprecht/UberWriter/ui/Menu.ui")
model = builder_window_menu.get_object("Menu")
headerbar.light_button = builder_window_menu.get_object("light_mode_button")
headerbar.dark_button = builder_window_menu.get_object("dark_mode_button")
headerbar.menu_button.set_popover(model)
# Add recents menu to the open recents button
recents_builder = Gtk.Builder()
recents_builder.add_from_resource(
"/de/wolfvollprecht/UberWriter/ui/Recents.ui")
recents = recents_builder.get_object("recent_md_popover")
recents_treeview = get_descendant(recents, "recent_view", level=0)
recents_treeview.set_activate_on_single_click(True)
recents_wd = recents_builder.get_object("recent_md_widget")
recents_wd.connect('item-activated', app.on_open_recent)
headerbar.recents_button.set_popover(recents)
headerbar.recents_button.set_sensitive(True)
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