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youtube-dl-gui
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youtube-dl-gui/youtube_dl_gui/mainframe.py

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#!/usr/bin/env python2
# -*- coding: utf-8 -*-
"""Youtubedlg module responsible for the main app window. """
from __future__ import unicode_literals
import os
import gettext
import wx
from wx.lib.pubsub import setuparg1
from wx.lib.pubsub import pub as Publisher
from wx.lib.mixins.listctrl import ListCtrlAutoWidthMixin
from .parsers import OptionsParser
from .optionsframe import (
OptionsFrame,
LogGUI
)
from .updatemanager import (
UPDATE_PUB_TOPIC,
UpdateThread
)
from .downloadmanager import (
MANAGER_PUB_TOPIC,
WORKER_PUB_TOPIC,
DownloadManager
)
from .utils import (
get_pixmaps_dir,
get_config_path,
get_icon_file,
shutdown_sys,
read_formats,
json_store,
json_load,
to_string,
get_time,
open_dir
)
from .info import (
__descriptionfull__,
__licensefull__,
__projecturl__,
__appname__,
__author__
)
from .version import __version__
class MainFrame(wx.Frame):
"""Main window class.
This class is responsible for creating the main app window
and binding the events.
Attributes:
wxEVT_TEXT_PASTE (int): Event type code for the wx.EVT_TEXT_PASTE
BUTTONS_SIZE (tuple): Buttons size (width, height).
BUTTONS_SPACE (tuple): Space between buttons (width, height).
SIZE_20 (int): Constant size number.
SIZE_10 (int): Constant size number.
SIZE_5 (int): Constant size number.
Labels area (strings): Strings for the widgets labels.
STATUSLIST_COLUMNS (dict): Python dictionary which holds informations
about the wxListCtrl columns. For more informations read the
comments above the STATUSLIST_COLUMNS declaration.
Args:
opt_manager (optionsmanager.OptionsManager): Object responsible for
handling the settings.
log_manager (logmanager.LogManager): Object responsible for handling
the log stuff.
parent (wx.Window): Frame parent.
"""
wxEVT_TEXT_PASTE = 'wxClipboardTextEvent'
FRAMES_MIN_SIZE = (440, 360)
BUTTONS_SIZE = (-1, 30) # TODO remove not used anymore
BUTTONS_SPACE = (80, -1) # TODO remove not used anymore
SIZE_20 = 20 # TODO write directly
SIZE_10 = 10
SIZE_5 = 5
# Labels area
URLS_LABEL = _("Enter URLs below")
DOWNLOAD_LABEL = _("Download") # TODO remove not used anymore
UPDATE_LABEL = _("Update")
OPTIONS_LABEL = _("Options")
ERROR_LABEL = _("Error")
STOP_LABEL = _("Stop")
INFO_LABEL = _("Info")
WELCOME_MSG = _("Welcome")
ADD_LABEL = _("Add")
DOWNLOAD_LIST_LABEL = _("Download list")
DELETE_LABEL = _("Delete")
PLAY_LABEL = _("Play")
UP_LABEL = _("Up")
DOWN_LABEL = _("Down")
RELOAD_LABEL = _("Reload")
PAUSE_LABEL = _("Pause")
START_LABEL = _("Start")
ABOUT_LABEL = _("About")
VIEWLOG_LABEL = _("View Log")
SUCC_REPORT_MSG = _("Successfully downloaded {0} url(s) in {1} "
"day(s) {2} hour(s) {3} minute(s) {4} second(s)")
DL_COMPLETED_MSG = _("Downloads completed")
URL_REPORT_MSG = _("Downloading {0} url(s)")
CLOSING_MSG = _("Stopping downloads")
CLOSED_MSG = _("Downloads stopped")
PROVIDE_URL_MSG = _("You need to provide at least one url")
DOWNLOAD_STARTED = _("Downloads started")
CHOOSE_DIRECTORY = _("Choose Directory")
DOWNLOAD_ACTIVE = _("Download in progress. Please wait for all the downloads to complete")
UPDATE_ACTIVE = _("Update already in progress.")
UPDATING_MSG = _("Downloading latest youtube-dl. Please wait...")
UPDATE_ERR_MSG = _("Youtube-dl download failed [{0}]")
UPDATE_SUCC_MSG = _("Youtube-dl downloaded correctly")
OPEN_DIR_ERR = _("Unable to open directory: '{dir}'. "
"The specified path does not exist")
SHUTDOWN_ERR = _("Error while shutting down. "
"Make sure you typed the correct password")
SHUTDOWN_MSG = _("Shutting down system")
VIDEO_LABEL = _("Title")
EXTENSION_LABEL = _("Extension")
SIZE_LABEL = _("Size")
PERCENT_LABEL = _("Percent")
ETA_LABEL = _("ETA")
SPEED_LABEL = _("Speed")
STATUS_LABEL = _("Status")
#################################
# STATUSLIST_COLUMNS
#
# Dictionary which contains the columns for the wxListCtrl widget.
# Each key represents a column and holds informations about itself.
# Structure informations:
# column_key: (column_number, column_label, minimum_width, is_resizable)
#
STATUSLIST_COLUMNS = {
'filename': (0, VIDEO_LABEL, 150, True),
'extension': (1, EXTENSION_LABEL, 60, False),
'filesize': (2, SIZE_LABEL, 80, False),
'percent': (3, PERCENT_LABEL, 65, False),
'eta': (4, ETA_LABEL, 45, False),
'speed': (5, SPEED_LABEL, 90, False),
'status': (6, STATUS_LABEL, 160, False)
}
def __init__(self, opt_manager, log_manager, parent=None):
wx.Frame.__init__(self, parent, title=__appname__, size=opt_manager.options['main_win_size'])
self.opt_manager = opt_manager
self.log_manager = log_manager
self.download_manager = None
self.update_thread = None
self.app_icon = None
# TODO move it elsewhere?
self._download_items = {}
# Set up youtube-dl options parser
self._options_parser = OptionsParser()
# Get the pixmaps directory
self._pixmaps_path = get_pixmaps_dir()
# Get stored save paths file
self._stored_paths = os.path.join(get_config_path(), "spaths")
# Get video formats
self._video_formats = read_formats()
# Set the app icon
app_icon_path = get_icon_file()
if app_icon_path is not None:
self.app_icon = wx.Icon(app_icon_path, wx.BITMAP_TYPE_PNG)
self.SetIcon(self.app_icon)
# Set the data for all the wx.Button items
# name, label, icon, size, event_handler
buttons_data = (
("delete", self.DELETE_LABEL, "delete_32px.png", (55, 55), self._on_delete),
("play", self.PLAY_LABEL, "camera_32px.png", (55, 55), self._on_play),
("up", self.UP_LABEL, "arrow_up_32px.png", (55, 55), self._on_arrow_up),
("down", self.DOWN_LABEL, "arrow_down_32px.png", (55, 55), self._on_arrow_down),
("reload", self.RELOAD_LABEL, "reload_32px.png", (55, 55), self._on_reload),
("pause", self.PAUSE_LABEL, "pause_32px.png", (55, 55), self._on_pause),
("start", self.START_LABEL, "cloud_download_32px.png", (55, 55), self._on_start),
("savepath", "...", None, (40, 27), self._on_savepath),
("add", self.ADD_LABEL, None, (-1, -1), self._on_add)
)
# Set the data for the settings menu item
# label, event_handler
menu_data = (
(self.OPTIONS_LABEL, self._on_options),
(self.UPDATE_LABEL, self._on_update),
(self.VIEWLOG_LABEL, self._on_viewlog),
(self.ABOUT_LABEL, self._on_about)
)
# Create options frame
self._options_frame = OptionsFrame(self)
# Create frame components
self._panel = wx.Panel(self)
self._url_text = self._create_statictext(self.URLS_LABEL)
self._settings_button = self._create_bitmap_button("settings_20px.png", (30, 30), self._on_settings)
self._url_list = self._create_textctrl(wx.TE_MULTILINE | wx.TE_DONTWRAP, self._on_urllist_edit)
self._folder_icon = self._create_static_bitmap("folder_32px.png")
self._path_combobox = ExtComboBox(self._panel, 5, style=wx.CB_READONLY)
self._videoformat_combobox = ExtComboBox(self._panel, choices=self._video_formats.values(), style=wx.CB_READONLY)
self._download_text = self._create_statictext(self.DOWNLOAD_LIST_LABEL)
self._status_list = ListCtrl(self.STATUSLIST_COLUMNS,
parent=self._panel,
style=wx.LC_REPORT | wx.LC_HRULES | wx.LC_VRULES)
# Dictionary to store all the buttons
self._buttons = {}
for item in buttons_data:
name, label, icon, size, evt_handler = item
button = wx.Button(self._panel, label=label, size=size)
if icon is not None:
button.SetBitmap(wx.Bitmap(os.path.join(self._pixmaps_path, icon)), wx.TOP)
if evt_handler is not None:
button.Bind(wx.EVT_BUTTON, evt_handler)
self._buttons[name] = button
self._status_bar = self.CreateStatusBar()
# Create extra components
self._settings_menu = wx.Menu()
for item in menu_data:
label, evt_handler = item
menu_item = self._settings_menu.Append(-1, label)
self.Bind(wx.EVT_MENU, evt_handler, menu_item)
# Overwrite the hover event to avoid changing the statusbar
self._settings_menu.Bind(wx.EVT_MENU_HIGHLIGHT, lambda event: None)
# Bind extra events
self.Bind(wx.EVT_TEXT, self._update_videoformat, self._videoformat_combobox)
self.Bind(wx.EVT_TEXT, self._update_savepath, self._path_combobox)
self.Bind(wx.EVT_CLOSE, self._on_close)
# Set threads wxCallAfter handlers
self._set_publisher(self._update_handler, UPDATE_PUB_TOPIC)
self._set_publisher(self._download_worker_handler, WORKER_PUB_TOPIC)
self._set_publisher(self._download_manager_handler, MANAGER_PUB_TOPIC)
# Set up extra stuff
self.Center()
self.SetMinSize(self.FRAMES_MIN_SIZE)
self._videoformat_combobox.SetMaxSize((210 ,-1))
self._set_buttons_width()
self._status_bar_write(self.WELCOME_MSG)
self._videoformat_combobox.SetValue(self._video_formats[self.opt_manager.options["video_format"]])
self._path_combobox.LoadMultiple(json_load(self._stored_paths))
self._path_combobox.SetValue(self.opt_manager.options["save_path"])
self._set_layout()
def _update_videoformat(self, event):
self.opt_manager.options["video_format"] = self._video_formats[self._videoformat_combobox.GetValue()]
def _update_savepath(self, event):
self.opt_manager.options["save_path"] = self._path_combobox.GetValue()
def _on_delete(self, event):
raise Exception("Implement me!")
def _on_play(self, event):
raise Exception("Implement me!")
def _on_arrow_up(self, event):
raise Exception("Implement me!")
def _on_arrow_down(self, event):
raise Exception("Implement me!")
def _on_reload(self, event):
raise Exception("Implement me!")
def _on_pause(self, event):
raise Exception("Implement me!")
def _on_start(self, event):
raise Exception("Implement me!")
def _on_savepath(self, event):
dlg = wx.DirDialog(self, self.CHOOSE_DIRECTORY, self._path_combobox.GetStringSelection(), wx.DD_CHANGE_DIR)
if dlg.ShowModal() == wx.ID_OK:
path = dlg.GetPath()
self._path_combobox.Append(path)
self._path_combobox.SetValue(path)
self._update_savepath(None)
dlg.Destroy()
def _on_add(self, event):
options = self._options_parser.parse(self.opt_manager.options)
urls = self._get_urls()
self._url_list.SetValue("")
# Try to get the extension
extension = self._videoformat_combobox.GetValue().split()[0]
if extension == "default":
extension = "-"
else:
extension = "." + extension
for url in urls:
# TODO validate url? youtube-dl can support keywords
download_item = DownloadItem(url, options, extension=extension)
if download_item.object_id not in self._download_items:
download_item.progress_stats["status"] = "Queued"
self._download_items[download_item.object_id] = download_item
self._status_list.bind_item(download_item)
if not urls:
self._create_popup(self.PROVIDE_URL_MSG,
self.ERROR_LABEL,
wx.OK | wx.ICON_EXCLAMATION)
# TODO Call download manager here
def _on_settings(self, event):
event_object_pos = event.EventObject.GetPosition()
# Update the object +30 on Y axis to make the menu look like it belongs to the button
event_object_pos = (event_object_pos[0], event_object_pos[1] + 30)
self.PopupMenu(self._settings_menu, event_object_pos)
def _on_viewlog(self, event):
log_window = LogGUI(self)
log_window.load(self.log_manager.log_file)
log_window.Show()
def _on_about(self, event):
info = wx.AboutDialogInfo()
if self.app_icon is not None:
info.SetIcon(self.app_icon)
info.SetName(__appname__)
info.SetVersion(__version__)
info.SetDescription(__descriptionfull__)
info.SetWebSite(__projecturl__)
info.SetLicense(__licensefull__)
info.AddDeveloper(__author__)
wx.AboutBox(info)
def _set_publisher(self, handler, topic):
"""Sets a handler for the given topic.
Args:
handler (function): Can be any function with one parameter
the message that the caller sends.
topic (string): Can be any string that identifies the caller.
You can bind multiple handlers on the same topic or
multiple topics on the same handler.
"""
Publisher.subscribe(handler, topic)
def _set_buttons_width(self):
"""Re-adjust buttons size on runtime so that all buttons
look the same. """
widths = [
#self._download_btn.GetSize()[0],
#self._update_btn.GetSize()[0],
#self._options_btn.GetSize()[0],
]
max_width = -1
for item in widths:
if item > max_width:
max_width = item
#self._download_btn.SetMinSize((max_width, self.BUTTONS_SIZE[1]))
#self._update_btn.SetMinSize((max_width, self.BUTTONS_SIZE[1]))
#self._options_btn.SetMinSize((max_width, self.BUTTONS_SIZE[1]))
self._panel.Layout()
def _create_statictext(self, label):
return wx.StaticText(self._panel, label=label)
def _create_bitmap_button(self, icon, size=(-1, -1), handler=None):
bitmap = wx.Bitmap(os.path.join(self._pixmaps_path, icon))
button = wx.BitmapButton(self._panel, bitmap=bitmap, size=size, style=wx.NO_BORDER)
if handler is not None:
button.Bind(wx.EVT_BUTTON, handler)
return button
def _create_static_bitmap(self, icon):
bitmap = wx.Bitmap(os.path.join(self._pixmaps_path, icon))
return wx.StaticBitmap(self._panel, bitmap=bitmap)
def _create_textctrl(self, style=None, event_handler=None):
if style is None:
textctrl = wx.TextCtrl(self._panel)
else:
textctrl = wx.TextCtrl(self._panel, style=style)
if event_handler is not None:
textctrl.Bind(wx.EVT_TEXT_PASTE, event_handler)
textctrl.Bind(wx.EVT_MIDDLE_DOWN, event_handler)
if os.name == 'nt':
# Enable CTRL+A on Windows
def win_ctrla_eventhandler(event):
if event.GetKeyCode() == wx.WXK_CONTROL_A:
event.GetEventObject().SelectAll()
event.Skip()
textctrl.Bind(wx.EVT_CHAR, win_ctrla_eventhandler)
return textctrl
def _create_button(self, label, event_handler=None):
# TODO remove not used anymore
btn = wx.Button(self._panel, label=label, size=self.BUTTONS_SIZE)
if event_handler is not None:
btn.Bind(wx.EVT_BUTTON, event_handler)
return btn
def _create_popup(self, text, title, style):
wx.MessageBox(text, title, style)
def _set_layout(self):
"""Sets the layout of the main window. """
main_sizer = wx.BoxSizer(wx.VERTICAL)
panel_sizer = wx.BoxSizer(wx.VERTICAL)
top_sizer = wx.BoxSizer(wx.HORIZONTAL)
top_sizer.Add(self._url_text, 0, wx.ALIGN_BOTTOM | wx.BOTTOM, 5)
top_sizer.AddSpacer((100, 20), 1)
top_sizer.Add(self._settings_button, flag=wx.ALIGN_RIGHT)
panel_sizer.Add(top_sizer, 0, wx.EXPAND | wx.LEFT | wx.RIGHT, 5)
panel_sizer.Add(self._url_list, 1, wx.EXPAND)
mid_sizer = wx.BoxSizer(wx.HORIZONTAL)
mid_sizer.Add(self._folder_icon)
mid_sizer.Add(self._path_combobox, 2, wx.ALIGN_CENTER_VERTICAL)
mid_sizer.Add(self._buttons["savepath"], flag=wx.ALIGN_CENTER_VERTICAL)
mid_sizer.AddSpacer((10, 20), 1)
mid_sizer.Add(self._videoformat_combobox, 1, wx.ALIGN_CENTER_VERTICAL)
mid_sizer.Add(self._buttons["add"], flag=wx.ALIGN_CENTER_VERTICAL)
panel_sizer.Add(mid_sizer, 0, wx.EXPAND | wx.ALL, 10)
panel_sizer.Add(self._download_text, 0, wx.BOTTOM | wx.LEFT, 5)
panel_sizer.Add(self._status_list, 2, wx.EXPAND)
bottom_sizer = wx.BoxSizer(wx.HORIZONTAL)
bottom_sizer.Add(self._buttons["delete"])
bottom_sizer.Add(self._buttons["play"])
bottom_sizer.Add(self._buttons["up"])
bottom_sizer.Add(self._buttons["down"])
bottom_sizer.Add(self._buttons["reload"])
bottom_sizer.Add(self._buttons["pause"])
bottom_sizer.AddSpacer((100, 20), 1)
bottom_sizer.Add(self._buttons["start"])
panel_sizer.Add(bottom_sizer, 0, wx.EXPAND | wx.TOP, 10)
self._panel.SetSizer(panel_sizer)
main_sizer.Add(self._panel, 1, wx.ALL | wx.EXPAND, 10)
self.SetSizer(main_sizer)
def _update_youtubedl(self):
"""Update youtube-dl binary to the latest version. """
#self._update_btn.Disable()
#self._download_btn.Disable()
if self.download_manager is not None and self.download_manager.is_alive():
self._create_popup(self.DOWNLOAD_ACTIVE,
self.ERROR_LABEL,
wx.OK | wx.ICON_EXCLAMATION)
elif self.update_thread is not None and self.update_thread.is_alive():
self._create_popup(self.UPDATE_ACTIVE,
self.INFO_LABEL,
wx.OK | wx.ICON_INFORMATION)
else:
self.update_thread = UpdateThread(self.opt_manager.options['youtubedl_path'])
def _status_bar_write(self, msg):
"""Display msg in the status bar. """
self._status_bar.SetStatusText(msg)
def _reset_widgets(self):
"""Resets GUI widgets after update or download process. """
pass
#self._download_btn.SetLabel(self.DOWNLOAD_LABEL)
#self._download_btn.Enable()
#self._update_btn.Enable()
def _print_stats(self):
"""Display download stats in the status bar. """
suc_downloads = self.download_manager.successful
dtime = get_time(self.download_manager.time_it_took)
msg = self.SUCC_REPORT_MSG.format(suc_downloads,
dtime['days'],
dtime['hours'],
dtime['minutes'],
dtime['seconds'])
self._status_bar_write(msg)
def _after_download(self):
"""Run tasks after download process has been completed.
Note:
Here you can add any tasks you want to run after the
download process has been completed.
"""
if self.opt_manager.options['shutdown']:
self.opt_manager.save_to_file()
success = shutdown_sys(self.opt_manager.options['sudo_password'])
if success:
self._status_bar_write(self.SHUTDOWN_MSG)
else:
self._status_bar_write(self.SHUTDOWN_ERR)
else:
self._create_popup(self.DL_COMPLETED_MSG, self.INFO_LABEL, wx.OK | wx.ICON_INFORMATION)
if self.opt_manager.options['open_dl_dir']:
success = open_dir(self.opt_manager.options['save_path'])
if not success:
self._status_bar_write(self.OPEN_DIR_ERR.format(dir=self.opt_manager.options['save_path']))
def _download_worker_handler(self, msg):
"""downloadmanager.Worker thread handler.
Handles messages from the Worker thread.
Args:
See downloadmanager.Worker _talk_to_gui() method.
"""
signal, data = msg.data
if signal == 'send':
self._status_list.write(data)
if signal == 'receive':
self.download_manager.send_to_worker(self._status_list.get(data))
def _download_manager_handler(self, msg):
"""downloadmanager.DownloadManager thread handler.
Handles messages from the DownloadManager thread.
Args:
See downloadmanager.DownloadManager _talk_to_gui() method.
"""
data = msg.data
if data == 'finished':
self._print_stats()
self._reset_widgets()
self.download_manager = None
self._after_download()
elif data == 'closed':
self._status_bar_write(self.CLOSED_MSG)
self._reset_widgets()
self.download_manager = None
elif data == 'closing':
self._status_bar_write(self.CLOSING_MSG)
elif data == 'report_active':
# Report number of urls been downloaded
msg = self.URL_REPORT_MSG.format(self.download_manager.active())
self._status_bar_write(msg)
def _update_handler(self, msg):
"""updatemanager.UpdateThread thread handler.
Handles messages from the UpdateThread thread.
Args:
See updatemanager.UpdateThread _talk_to_gui() method.
"""
data = msg.data
if data[0] == 'download':
self._status_bar_write(self.UPDATING_MSG)
elif data[0] == 'error':
self._status_bar_write(self.UPDATE_ERR_MSG.format(data[1]))
elif data[0] == 'correct':
self._status_bar_write(self.UPDATE_SUCC_MSG)
else:
self._reset_widgets()
self.update_thread = None
def _get_urls(self):
"""Returns urls list. """
return [line for line in self._url_list.GetValue().split('\n') if line]
def _start_download(self):
"""Handles pre-download tasks & starts the download process. """
self._status_list.clear()
self._status_list.load_urls(self._get_urls())
if self._status_list.is_empty():
self._create_popup(self.PROVIDE_URL_MSG,
self.ERROR_LABEL,
wx.OK | wx.ICON_EXCLAMATION)
else:
self.download_manager = DownloadManager(self._status_list.get_items(),
self.opt_manager,
self.log_manager)
self._status_bar_write(self.DOWNLOAD_STARTED)
#self._download_btn.SetLabel(self.STOP_LABEL)
#self._update_btn.Disable()
def _paste_from_clipboard(self):
"""Paste the content of the clipboard to the self._url_list widget.
It also adds a new line at the end of the data if not exist.
"""
if not wx.TheClipboard.IsOpened():
if wx.TheClipboard.Open():
if wx.TheClipboard.IsSupported(wx.DataFormat(wx.DF_TEXT)):
data = wx.TextDataObject()
wx.TheClipboard.GetData(data)
data = data.GetText()
if data[-1] != '\n':
data += '\n'
self._url_list.WriteText(data)
wx.TheClipboard.Close()
def _on_urllist_edit(self, event):
"""Event handler of the self._url_list widget.
This method is triggered when the users pastes text into
the URLs list either by using CTRL+V or by using the middle
click of the mouse.
"""
#TODO Remove not used anymore
if event.ClassName == self.wxEVT_TEXT_PASTE:
self._paste_from_clipboard()
else:
wx.TheClipboard.UsePrimarySelection(True)
self._paste_from_clipboard()
wx.TheClipboard.UsePrimarySelection(False)
# Dynamically add urls after download process has started
if self.download_manager is not None:
self._status_list.load_urls(self._get_urls(), self.download_manager.add_url)
def _on_download(self, event):
"""Event handler of the self._download_btn widget.
This method is used when the download-stop button is pressed to
start or stop the download process.
"""
if self.download_manager is None:
self._start_download()
else:
self.download_manager.stop_downloads()
def _on_update(self, event):
"""Event handler of the self._update_btn widget.
This method is used when the update button is pressed to start
the update process.
Note:
Currently there is not way to stop the update process.
"""
self._update_youtubedl()
def _on_options(self, event):
"""Event handler of the self._options_btn widget.
This method is used when the options button is pressed to show
the options window.
"""
print "Have to adjust the options window first!!"
#self._options_frame.load_all_options()
#self._options_frame.Show()
def _on_close(self, event):
"""Event handler for the wx.EVT_CLOSE event.
This method is used when the user tries to close the program
to save the options and make sure that the download & update
processes are not running.
"""
if self.download_manager is not None:
self.download_manager.stop_downloads()
self.download_manager.join()
if self.update_thread is not None:
self.update_thread.join()
# Store main-options frame size
self.opt_manager.options['main_win_size'] = self.GetSize()
self.opt_manager.options['opts_win_size'] = self._options_frame.GetSize()
#TODO re-enable after options frame update
#self._options_frame.save_all_options()
self.opt_manager.save_to_file()
json_store(self._stored_paths, self._path_combobox.GetStrings())
self.Destroy()
class ListCtrl(wx.ListCtrl, ListCtrlAutoWidthMixin):
"""Custom ListCtrl widget.
Args:
columns (dict): See MainFrame class STATUSLIST_COLUMNS attribute.
"""
def __init__(self, columns, *args, **kwargs):
wx.ListCtrl.__init__(self, *args, **kwargs)
ListCtrlAutoWidthMixin.__init__(self)
self.columns = columns
self._list_index = 0
self._url_list = set()
self._set_columns()
def get(self, data):
"""Return data from ListCtrl.
Args:
data (dict): Dictionary which contains three keys. The 'index'
that identifies the current row, the 'source' which identifies
a column in the wxListCtrl and the 'dest' which tells
wxListCtrl under which key to store the retrieved value. For
more informations see the _talk_to_gui() method under
downloadmanager.py Worker class.
Returns:
A dictionary which holds the 'index' (row) and the data from the
given row-column combination.
Example:
args: data = {'index': 0, 'source': 'filename', 'dest': 'new_filename'}
The wxListCtrl will store the value from the 'filename' column
into a new dictionary with a key value 'new_filename'.
return: {'index': 0, 'new_filename': 'The filename retrieved'}
"""
value = None
# If the source column exists
if data['source'] in self.columns:
value = self.GetItemText(data['index'], self.columns[data['source']][0])
return {'index': data['index'], data['dest']: value}
def write(self, data):
"""Write data on ListCtrl row-column.
Args:
data (dict): Dictionary that contains the data to be
written on the ListCtrl. In order for this method to
write the given data there must be an 'index' key that
identifies the current row. For a valid data dictionary see
Worker class __init__() method under downloadmanager.py module.
"""
for key in data:
if key in self.columns:
self._write_data(data['index'], self.columns[key][0], data[key])
def load_urls(self, url_list, func=None):
"""Load URLs from the url_list on the ListCtrl widget.
Args:
url_list (list): List of strings that contains the URLs to add.
func (function): Callback function. It's used to add the URLs
on the download_manager.
"""
for url in url_list:
url = url.replace(' ', '')
if url and not self.has_url(url):
self.add_url(url)
if func is not None:
# Custom hack to add url into download_manager
item = self._get_item(self._list_index - 1)
func(item)
def has_url(self, url):
"""Returns True if the url is aleady in the ListCtrl else False.
Args:
url (string): URL string.
"""
return url in self._url_list
def bind_item(self, download_item):
#TODO remove line below
print self._list_index, download_item.object_id
self.InsertStringItem(self._list_index, download_item.url)
self.SetItemData(self._list_index, download_item.object_id)
self._update_from_item(self._list_index, download_item)
self._list_index += 1
def _update_from_item(self, row, download_item):
for key in download_item.progress_stats:
column = self.columns[key][0]
#TODO remove line below
print row, column, download_item.progress_stats[key]
self.SetStringItem(row, column, download_item.progress_stats[key])
def add_url(self, url):
"""Adds the given url in the ListCtrl.
Args:
url (string): URL string.
"""
self.InsertStringItem(self._list_index, url)
self._url_list.add(url)
self._list_index += 1
def clear(self):
"""Clear the ListCtrl widget & reset self._list_index and
self._url_list. """
self.DeleteAllItems()
self._list_index = 0
self._url_list = set()
def is_empty(self):
"""Returns True if the list is empty else False. """
return self._list_index == 0
def get_items(self):
"""Returns a list of items inside the ListCtrl.
Returns:
List of dictionaries that contains the 'url' and the
'index'(row) for each item of the ListCtrl.
"""
items = []
for row in xrange(self._list_index):
item = self._get_item(row)
items.append(item)
return items
def _write_data(self, row, column, data):
"""Write data on row-column. """
if isinstance(data, basestring):
self.SetStringItem(row, column, data)
def _get_item(self, index):
"""Returns the corresponding ListCtrl item for the given index.
Args:
index (int): Index that identifies the row of the item.
Index must be smaller than the self._list_index.
Returns:
Dictionary that contains the URL string of the row and the
row number(index).
"""
item = self.GetItem(itemId=index, col=0)
data = dict(url=item.GetText(), index=index)
return data
def _set_columns(self):
"""Initializes ListCtrl columns.
See MainFrame STATUSLIST_COLUMNS attribute for more info. """
for column_item in sorted(self.columns.values()):
self.InsertColumn(column_item[0], column_item[1], width=wx.LIST_AUTOSIZE_USEHEADER)
# If the column width obtained from wxLIST_AUTOSIZE_USEHEADER
# is smaller than the minimum allowed column width
# then set the column width to the minumum allowed size
if self.GetColumnWidth(column_item[0]) < column_item[2]:
self.SetColumnWidth(column_item[0], column_item[2])
# Set auto-resize if enabled
if column_item[3]:
self.setResizeColumn(column_item[0])
# TODO Extra widgets below should move to other module with widgets
class ExtComboBox(wx.ComboBox):
def __init__(self, parent, max_items=-1, *args, **kwargs):
super(ExtComboBox, self).__init__(parent, *args, **kwargs)
assert max_items > 0 or max_items == -1
self.max_items = max_items
def Append(self, new_value):
if self.FindString(new_value) == wx.NOT_FOUND:
super(ExtComboBox, self).Append(new_value)
if self.max_items != -1 and self.GetCount() > self.max_items:
self.SetItems(self.GetStrings()[1:])
def SetValue(self, new_value):
if self.FindString(new_value) == wx.NOT_FOUND:
self.Append(new_value)
self.SetSelection(self.FindString(new_value))
def LoadMultiple(self, items_list):
for item in items_list:
self.Append(item)