答案1
有趣的问题!
...这是引发下面关于这个主题的探索的导火索UB 实验仓库。结果是弹出一个通知/消息窗口,其中包含以下选项:
具有(可选)点击功能的通知示例
- 设置要出现的角
- 设置单击时运行的命令
- 设置标题(粗体)
- 设置消息文本
- 设置图标
- 设置寿命长度(秒)<- 在代码片段中设置
前四个选项仅在您设置参数时才适用,角落默认为右下角(在主要位置),除非另有设置。
寿命是硬编码的,默认为 10 秒,除非另有设置。
笔记
- 请注意,这些通知 - 就其本身而言 - 不会传递
dbus
,因此无法“监听”它们。进一步的开发可能是使其成为一个守护进程般的后台进程 - 保持 Gtk 循环处于活动状态 - 仅在 dbus 提示上调用窗口。 - 许多值/首选项可以移至 gsettings
如何设置
- 将代码片段复制到一个空文件中,另存为
alternotify.py
,并使其可执行 使用以下选项的任意组合来运行它,只需选择您需要的即可:
- 点击命令:
command="command_to_run"
- 标题:
title="Title to show"
- 消息文本(正文):
body="Text body of the notification message, text, text, text"
- 图标(来自图标名称):
icon="icon-name"
- 出现的角落,1 = 东北,2 = 西北,3 = 东南,4 = 西南:
position=1
- 点击命令:
完整的命令可能如下所示:
/path/to/alternotify.py title="Missing applet" body="To use this functionality, you need to run previews. Click this notification to switch it on." icon="budgie-hotcorners-symbolic" command="gedit /home/jacob/Bureaublad/Kap" position=4
代码
#!/usr/bin/env python3
import gi
gi.require_version("Gtk", "3.0")
from gi.repository import Gtk, Gdk, GLib
import sys
import subprocess
class NotifyWindow(Gtk.Window):
def __init__(self):
Gtk.Window.__init__(self)
self.set_decorated(False)
distance = 80 # gsettings
winwidth = 300 # gsettings
winheight = 80 # gsettings
self.set_default_size(winwidth, winheight)
self.maingrid = Gtk.Grid()
self.add(self.maingrid)
self.set_space()
self.winpos = 4 # gsettings? default = SE
self.get_args()
self.currage = 0
self.targetage = 10 # gsettings,life seconds
GLib.timeout_add_seconds(1, self.limit_windowlife)
self.maingrid.show_all()
self.position_popup(self.winpos, winwidth, winheight, distance)
self.show_all()
Gtk.main()
def get_winpos(self, arg):
self.winpos = int(arg)
def limit_windowlife(self):
if self.currage >= self.targetage:
Gtk.main_quit()
self.currage = self.currage + 1;
return True
def position_popup(self, winpos, winwidth, winheight, distance):
monitordata = self.get_primarymonitor()
winsize = self.get_size()
winwidth, winheight = winsize.width, winsize.height
monitor_xpos = monitordata[2]
monitor_ypos = monitordata[3]
monitor_width = monitordata[0]
monitor_height = monitordata[1]
if winpos == 1:
wintargetx = monitor_xpos + distance
wintargety = monitor_ypos + distance
elif winpos == 2:
wintargetx = monitor_width + monitor_xpos - winwidth - distance
wintargety = monitor_ypos + distance
elif winpos == 3:
wintargetx = monitor_xpos + distance
wintargety = monitor_ypos + monitor_height - (
distance + winheight
)
elif winpos == 4:
wintargetx = monitor_width + monitor_xpos - winwidth - distance
wintargety = monitor_ypos + monitor_height - (
distance + winheight
)
self.move(wintargetx, wintargety)
def get_primarymonitor(self):
# see what is the resolution on the primary monitor
prim = Gdk.Display.get_default().get_primary_monitor()
geo = prim.get_geometry()
[width, height, screen_xpos, screen_ypos] = [
geo.width, geo.height, geo.x, geo.y
]
height = geo.height
return width, height, screen_xpos, screen_ypos
def show_title(self, title):
title_label = Gtk.Label(label=title)
self.maingrid.attach(title_label, 3, 1, 1, 1)
title_label.set_xalign(0)
# set title bold
self.noti_css = ".title {font-weight: bold; padding-bottom: 5px;}"
self.provider = Gtk.CssProvider.new()
self.provider.load_from_data(self.noti_css.encode())
self.set_textstyle(title_label, "title")
def set_body(self, body):
body_label = Gtk.Label(
label=body
)
self.maingrid.attach(body_label, 3, 2, 1, 1)
body_label.set_xalign(0)
body_label.set_size_request(250, -1)
body_label.set_line_wrap(True)
def set_icon(self, icon):
self.maingrid.attach(Gtk.Label(label="\t"), 2, 0, 1, 1)
if not "/" in icon:
newicon = Gtk.Image.new_from_icon_name(
icon, Gtk.IconSize.DIALOG
)
self.maingrid.attach(newicon, 1, 1, 1, 2)
self.maingrid.show_all()
def get_args(self):
args = sys.argv[1:]
funcs = [
self.show_title, self.set_body, self.set_icon,
self.connect_action, self.get_winpos,
]
argnames = ["title", "body", "icon", "command", "position"]
for arg in args:
argdata = arg.split("=")
argname = argdata[0]
arg = argdata[1]
try:
i = argnames.index(argname)
funcs[i](arg)
except ValueError:
print("invalid argument:", arg)
def connect_action(self, arg):
self.connect("button_press_event", self.run_command, arg)
pass
def set_textstyle(self, widget, style):
widget_cont = widget.get_style_context()
widget_cont.add_class(style)
Gtk.StyleContext.add_provider(
widget_cont,
self.provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION,
)
def run_command(self, event, key, command):
if key.get_button()[1] == 1:
subprocess.Popen(["/bin/bash", "-c", command])
def set_space(self):
for cell in [[0, 0], [100, 0], [0, 100], [100, 100]]:
self.maingrid.attach(
Gtk.Label(label="\t"), cell[0], cell[1], 1, 1
)
NotifyWindow()