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Some small fixes (#862)
* Also use PKEXEC_UID to get username Privilege elevation can occur through pkexec, where many environment variables are not accessible. This fixes the following problem - if howdy-gtk is run without sudo, authorization occurs via pkexec, and the user variable is empty. So when adding the first model, it is unclear to which user to add it. * Update the container when the slide changes In some GTK themes, when we change a slide, we see a blank window because there is nothing to trigger the size update, and the slide is displayed at zero size. Let's force a size update so that it always works. * Remove reading of non-existent '_variables' file * More correct preview when stretching the window The "Video" tab layout did not display correctly when resizing the window. * Don't add a model if the user list is empty The list of users may be empty, and if you try to add a model, a string concatenation error with None will occur. For simplicity and consistency with the "Delete" button, we simply check the size of the list after clicking. * Show real camera ID in the 'Video' tab * Handle the case if there are no cameras via except Otherwise, when trying to read the /dev/v4l/by-path directory, an exception is thrown and the program visually freezes.
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6 changed files with 16 additions and 11 deletions
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@ -355,14 +355,11 @@
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</child>
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</object>
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<packing>
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<property name="expand">False</property>
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<property name="expand">True</property>
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<property name="fill">True</property>
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<property name="position">1</property>
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</packing>
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</child>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="position">1</property>
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@ -27,6 +27,7 @@ class OnboardingWindow(gtk.Window):
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self.builder.connect_signals(self)
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self.window = self.builder.get_object("onboardingwindow")
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self.slidecontainer = self.builder.get_object("slidecontainer")
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self.nextbutton = self.builder.get_object("nextbutton")
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self.slides = [
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@ -53,6 +54,8 @@ class OnboardingWindow(gtk.Window):
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self.slides[self.window.current_slide].hide()
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self.slides[self.window.current_slide + 1].show()
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self.window.current_slide += 1
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# the shown child may have zero/wrong dimensions
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self.slidecontainer.queue_resize()
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if self.window.current_slide == 1:
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self.execute_slide1()
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@ -119,10 +122,10 @@ class OnboardingWindow(gtk.Window):
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except Exception:
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self.show_error(_("Error while importing OpenCV2"), _("Try reinstalling cv2"))
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device_ids = os.listdir("/dev/v4l/by-path")
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device_rows = []
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if not device_ids:
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try:
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device_ids = os.listdir("/dev/v4l/by-path")
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except Exception:
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self.show_error(_("No webcams found on system"), _("Please configure your camera yourself if you are sure a compatible camera is connected"))
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# Loop though all devices
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@ -44,6 +44,8 @@ def on_user_add(self, button):
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def on_model_add(self, button):
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if self.userlist.items == 0:
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return
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# Open question dialog
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dialog = gtk.MessageDialog(parent=self, flags=gtk.DialogFlags.MODAL, type=gtk.MessageType.QUESTION, buttons=gtk.ButtonsType.OK_CANCEL)
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dialog.set_title(_("Confirm Model Creation"))
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@ -14,7 +14,6 @@ MAX_WIDTH = 300
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def on_page_switch(self, notebook, page, page_num):
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if page_num == 1:
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path = "/dev/video1"
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try:
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self.config = configparser.ConfigParser()
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@ -22,6 +21,8 @@ def on_page_switch(self, notebook, page, page_num):
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except Exception:
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print(_("Can't open camera"))
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path = self.config.get("video", "device_path")
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try:
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# if not self.cv2:
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import cv2
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@ -30,7 +31,7 @@ def on_page_switch(self, notebook, page, page_num):
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print(_("Can't import OpenCV2"))
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try:
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self.capture = cv2.VideoCapture(self.config.get("video", "device_path"))
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self.capture = cv2.VideoCapture(path)
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except Exception:
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print(_("Can't open camera"))
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@ -5,7 +5,6 @@
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_howdy() {
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local cur prev opts
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local config_path="@config_path@"
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source _variables
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COMPREPLY=()
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# The argument typed so far
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cur="${COMP_WORDS[COMP_CWORD]}"
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@ -4,6 +4,7 @@
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# Import required modules
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import sys
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import os
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import pwd
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import getpass
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import argparse
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import builtins
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@ -13,8 +14,10 @@ from i18n import _
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# Try to get the original username (not "root") from shell
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sudo_user = os.environ.get("SUDO_USER")
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doas_user = os.environ.get("DOAS_USER")
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pkexec_uid = os.environ.get("PKEXEC_UID")
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pkexec_user = pwd.getpwuid(int(pkexec_uid))[0] if pkexec_uid else ""
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env_user = getpass.getuser()
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user = next((u for u in [sudo_user, doas_user, env_user] if u), "")
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user = next((u for u in [sudo_user, doas_user, pkexec_user, env_user] if u), "")
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# If that fails, error out
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if user == "":
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