如何通过具有“onClick”功能的命令在 gnome 中创建通知？

有趣的问题！

...这是在UB 实验性回购中探索以下主题的触发因素。结果是一个通知/消息弹出窗口，它具有以下选项：

具有（可选）点击功能的通知示例

• 设置角落出现
• 设置单击时运行的命令
• 设置标题（粗体）
• 设置消息文本
• 设置一个图标
• 设置生命长度（秒）<- 在片段中设置

前四个选项仅在您设置参数时适用，角默认为右下角（在主要位置），除非设置不同。

生命长度是硬编码的，默认为 10 秒，除非设置不同。

笔记

• 请注意，这些通知 - 按原样 - 不会通过dbus，因此无法“收听”它们。进一步的发展可能是使它成为一个类似守护进程的后台进程——保持 Gtk 循环活着——，只在 dbus 提示上调用窗口。
• 许多值/首选项可以移动到 gsettings

如何设置

• 将代码段复制到一个空文件中，将其另存为alternotify.py，使其可执行

• 使用以下选项的任意组合运行它，只需选择您需要的：

  • 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"
  • 要出现的角，1 = NE，2 = NW，3 = SE，4 = SW：position=1

一个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

编码

#!/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()