forked from openlp/openlp
706 lines
30 KiB
Python
706 lines
30 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2016 OpenLP Developers #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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"""
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Provides the generic functions for interfacing plugins with the Media Manager.
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"""
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import logging
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import os
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import re
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from PyQt5 import QtCore, QtGui, QtWidgets
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from openlp.core.common import Registry, RegistryProperties, Settings, UiStrings, translate
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from openlp.core.lib import FileDialog, ServiceItem, StringContent, ServiceItemContext
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from openlp.core.lib.searchedit import SearchEdit
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from openlp.core.lib.ui import create_widget_action, critical_error_message_box
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from openlp.core.ui.lib.listwidgetwithdnd import ListWidgetWithDnD
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from openlp.core.ui.lib.toolbar import OpenLPToolbar
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log = logging.getLogger(__name__)
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class MediaManagerItem(QtWidgets.QWidget, RegistryProperties):
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"""
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MediaManagerItem is a helper widget for plugins.
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None of the following *need* to be used, feel free to override them completely in your plugin's implementation.
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Alternatively, call them from your plugin before or after you've done extra things that you need to.
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**Constructor Parameters**
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``parent``
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The parent widget. Usually this will be the *Media Manager* itself. This needs to be a class descended from
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``QWidget``.
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``plugin``
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The plugin widget. Usually this will be the *Plugin* itself. This needs to be a class descended from ``Plugin``.
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**Member Variables**
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When creating a descendant class from this class for your plugin, the following member variables should be set.
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``self.on_new_prompt``
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Defaults to *'Select Image(s)'*.
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``self.on_new_file_masks``
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Defaults to *'Images (*.jpg *jpeg *.gif *.png *.bmp)'*. This assumes that the new action is to load a file. If
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not, you need to override the ``OnNew`` method.
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``self.PreviewFunction``
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This must be a method which returns a QImage to represent the item (usually a preview). No scaling is required,
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that is performed automatically by OpenLP when necessary. If this method is not defined, a default will be used
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(treat the filename as an image).
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"""
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log.info('Media Item loaded')
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def __init__(self, parent=None, plugin=None):
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"""
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Constructor to create the media manager item.
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"""
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super(MediaManagerItem, self).__init__(parent)
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self.plugin = plugin
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self._setup()
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self.setup_item()
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def _setup(self):
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"""
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Run some initial setup. This method is separate from __init__ in order to mock it out in tests.
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"""
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self.hide()
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self.whitespace = re.compile(r'[\W_]+', re.UNICODE)
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visible_title = self.plugin.get_string(StringContent.VisibleName)
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self.title = str(visible_title['title'])
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Registry().register(self.plugin.name, self)
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self.settings_section = self.plugin.name
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self.toolbar = None
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self.remote_triggered = None
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self.single_service_item = True
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self.quick_preview_allowed = False
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self.has_search = False
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self.page_layout = QtWidgets.QVBoxLayout(self)
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self.page_layout.setSpacing(0)
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self.page_layout.setContentsMargins(0, 0, 0, 0)
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self.required_icons()
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self.setupUi()
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self.retranslateUi()
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self.auto_select_id = -1
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def setup_item(self):
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"""
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Override this for additional Plugin setup
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"""
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pass
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def required_icons(self):
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"""
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This method is called to define the icons for the plugin. It provides a default set and the plugin is able to
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override the if required.
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"""
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self.has_import_icon = False
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self.has_new_icon = True
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self.has_edit_icon = True
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self.has_file_icon = False
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self.has_delete_icon = True
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self.add_to_service_item = False
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def retranslateUi(self):
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"""
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This method is called automatically to provide OpenLP with the opportunity to translate the ``MediaManagerItem``
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to another language.
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"""
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pass
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def add_toolbar(self):
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"""
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A method to help developers easily add a toolbar to the media manager item.
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"""
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if self.toolbar is None:
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self.toolbar = OpenLPToolbar(self)
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self.page_layout.addWidget(self.toolbar)
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def setupUi(self):
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"""
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This method sets up the interface on the button. Plugin developers use this to add and create toolbars, and the
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rest of the interface of the media manager item.
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"""
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# Add a toolbar
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self.add_toolbar()
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# Allow the plugin to define buttons at start of bar
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self.add_start_header_bar()
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# Add the middle of the tool bar (pre defined)
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self.add_middle_header_bar()
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# Allow the plugin to define buttons at end of bar
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self.add_end_header_bar()
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# Add the list view
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self.add_list_view_to_toolbar()
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def add_middle_header_bar(self):
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"""
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Create buttons for the media item toolbar
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"""
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toolbar_actions = []
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# Import Button
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if self.has_import_icon:
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toolbar_actions.append(['Import', StringContent.Import,
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':/general/general_import.png', self.on_import_click])
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# Load Button
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if self.has_file_icon:
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toolbar_actions.append(['Load', StringContent.Load, ':/general/general_open.png', self.on_file_click])
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# New Button
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if self.has_new_icon:
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toolbar_actions.append(['New', StringContent.New, ':/general/general_new.png', self.on_new_click])
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# Edit Button
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if self.has_edit_icon:
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toolbar_actions.append(['Edit', StringContent.Edit, ':/general/general_edit.png', self.on_edit_click])
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# Delete Button
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if self.has_delete_icon:
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toolbar_actions.append(['Delete', StringContent.Delete,
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':/general/general_delete.png', self.on_delete_click])
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# Preview
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toolbar_actions.append(['Preview', StringContent.Preview,
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':/general/general_preview.png', self.on_preview_click])
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# Live Button
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toolbar_actions.append(['Live', StringContent.Live, ':/general/general_live.png', self.on_live_click])
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# Add to service Button
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toolbar_actions.append(['Service', StringContent.Service, ':/general/general_add.png', self.on_add_click])
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for action in toolbar_actions:
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if action[0] == StringContent.Preview:
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self.toolbar.addSeparator()
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self.toolbar.add_toolbar_action('{name}{action}Action'.format(name=self.plugin.name, action=action[0]),
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text=self.plugin.get_string(action[1])['title'], icon=action[2],
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tooltip=self.plugin.get_string(action[1])['tooltip'],
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triggers=action[3])
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def add_list_view_to_toolbar(self):
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"""
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Creates the main widget for listing items the media item is tracking
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"""
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# Add the List widget
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self.list_view = ListWidgetWithDnD(self, self.plugin.name)
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self.list_view.setSpacing(1)
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self.list_view.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)
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self.list_view.setAlternatingRowColors(True)
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self.list_view.setObjectName('{name}ListView'.format(name=self.plugin.name))
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# Add to page_layout
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self.page_layout.addWidget(self.list_view)
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# define and add the context menu
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self.list_view.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
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if self.has_edit_icon:
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create_widget_action(self.list_view,
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text=self.plugin.get_string(StringContent.Edit)['title'],
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icon=':/general/general_edit.png',
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triggers=self.on_edit_click)
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create_widget_action(self.list_view, separator=True)
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create_widget_action(self.list_view,
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'listView{plugin}{preview}Item'.format(plugin=self.plugin.name.title(),
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preview=StringContent.Preview.title()),
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text=self.plugin.get_string(StringContent.Preview)['title'],
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icon=':/general/general_preview.png',
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can_shortcuts=True,
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triggers=self.on_preview_click)
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create_widget_action(self.list_view,
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'listView{plugin}{live}Item'.format(plugin=self.plugin.name.title(),
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live=StringContent.Live.title()),
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text=self.plugin.get_string(StringContent.Live)['title'],
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icon=':/general/general_live.png',
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can_shortcuts=True,
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triggers=self.on_live_click)
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create_widget_action(self.list_view,
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'listView{plugin}{service}Item'.format(plugin=self.plugin.name.title(),
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service=StringContent.Service.title()),
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can_shortcuts=True,
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text=self.plugin.get_string(StringContent.Service)['title'],
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icon=':/general/general_add.png',
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triggers=self.on_add_click)
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if self.has_delete_icon:
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create_widget_action(self.list_view, separator=True)
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create_widget_action(self.list_view,
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'listView{plugin}{delete}Item'.format(plugin=self.plugin.name.title(),
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delete=StringContent.Delete.title()),
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text=self.plugin.get_string(StringContent.Delete)['title'],
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icon=':/general/general_delete.png',
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can_shortcuts=True, triggers=self.on_delete_click)
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if self.add_to_service_item:
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create_widget_action(self.list_view, separator=True)
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create_widget_action(self.list_view,
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text=translate('OpenLP.MediaManagerItem', '&Add to selected Service Item'),
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icon=':/general/general_add.png',
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triggers=self.on_add_edit_click)
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self.add_custom_context_actions()
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# Create the context menu and add all actions from the list_view.
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self.menu = QtWidgets.QMenu()
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self.menu.addActions(self.list_view.actions())
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self.list_view.doubleClicked.connect(self.on_double_clicked)
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self.list_view.itemSelectionChanged.connect(self.on_selection_change)
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self.list_view.customContextMenuRequested.connect(self.context_menu)
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def add_search_to_toolbar(self):
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"""
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Creates a search field with button and related signal handling.
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"""
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self.search_widget = QtWidgets.QWidget(self)
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self.search_widget.setObjectName('search_widget')
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self.search_layout = QtWidgets.QVBoxLayout(self.search_widget)
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self.search_layout.setObjectName('search_layout')
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self.search_text_layout = QtWidgets.QFormLayout()
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self.search_text_layout.setObjectName('search_text_layout')
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self.search_text_label = QtWidgets.QLabel(self.search_widget)
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self.search_text_label.setObjectName('search_text_label')
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self.search_text_edit = SearchEdit(self.search_widget)
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self.search_text_edit.setObjectName('search_text_edit')
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self.search_text_label.setBuddy(self.search_text_edit)
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self.search_text_layout.addRow(self.search_text_label, self.search_text_edit)
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self.search_layout.addLayout(self.search_text_layout)
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self.search_button_layout = QtWidgets.QHBoxLayout()
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self.search_button_layout.setObjectName('search_button_layout')
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self.search_button_layout.addStretch()
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self.search_text_button = QtWidgets.QPushButton(self.search_widget)
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self.search_text_button.setObjectName('search_text_button')
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self.search_button_layout.addWidget(self.search_text_button)
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self.search_layout.addLayout(self.search_button_layout)
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self.page_layout.addWidget(self.search_widget)
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# Signals and slots
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self.search_text_edit.returnPressed.connect(self.on_search_text_button_clicked)
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self.search_text_button.clicked.connect(self.on_search_text_button_clicked)
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self.search_text_edit.textChanged.connect(self.on_search_text_edit_changed)
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def add_custom_context_actions(self):
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"""
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Implement this method in your descendant media manager item to add any context menu items.
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This method is called automatically.
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"""
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pass
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def initialise(self):
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"""
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Implement this method in your descendant media manager item to do any UI or other initialisation.
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This method is called automatically.
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"""
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pass
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def add_start_header_bar(self):
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"""
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Slot at start of toolbar for plugin to add widgets
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"""
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pass
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def add_end_header_bar(self):
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"""
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Slot at end of toolbar for plugin to add widgets
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"""
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pass
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def on_file_click(self):
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"""
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Add a file to the list widget to make it available for showing
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"""
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files = FileDialog.getOpenFileNames(self, self.on_new_prompt,
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Settings().value(self.settings_section + '/last directory'),
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self.on_new_file_masks)
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log.info('New files(s) {files}'.format(files=files))
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if files:
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self.application.set_busy_cursor()
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self.validate_and_load(files)
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self.application.set_normal_cursor()
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def load_file(self, data):
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"""
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Turn file from Drag and Drop into an array so the Validate code can run it.
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:param data: A dictionary containing the list of files to be loaded and the target
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"""
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new_files = []
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error_shown = False
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for file_name in data['files']:
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file_type = file_name.split('.')[-1]
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if file_type.lower() not in self.on_new_file_masks:
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if not error_shown:
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critical_error_message_box(translate('OpenLP.MediaManagerItem', 'Invalid File Type'),
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translate('OpenLP.MediaManagerItem',
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'Invalid File {name}.\n'
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'Suffix not supported').format(name=file_name))
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error_shown = True
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else:
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new_files.append(file_name)
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if new_files:
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self.validate_and_load(new_files, data['target'])
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def dnd_move_internal(self, target):
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"""
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Handle internal moving of media manager items
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:param target: The target of the DnD action
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"""
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pass
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def validate_and_load(self, files, target_group=None):
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"""
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Process a list for files either from the File Dialog or from Drag and
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Drop
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:param files: The files to be loaded.
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:param target_group: The QTreeWidgetItem of the group that will be the parent of the added files
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"""
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names = []
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full_list = []
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for count in range(self.list_view.count()):
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names.append(self.list_view.item(count).text())
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full_list.append(self.list_view.item(count).data(QtCore.Qt.UserRole))
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duplicates_found = False
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files_added = False
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for file_path in files:
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if file_path in full_list:
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duplicates_found = True
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else:
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files_added = True
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full_list.append(file_path)
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if full_list and files_added:
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if target_group is None:
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self.list_view.clear()
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self.load_list(full_list, target_group)
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last_dir = os.path.split(files[0])[0]
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Settings().setValue(self.settings_section + '/last directory', last_dir)
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Settings().setValue('{section}/{section} files'.format(section=self.settings_section),
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self.get_file_list())
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if duplicates_found:
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critical_error_message_box(UiStrings().Duplicate,
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translate('OpenLP.MediaManagerItem',
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'Duplicate files were found on import and were ignored.'))
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def context_menu(self, point):
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"""
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Display a context menu
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:param point: The point the cursor was at
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"""
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item = self.list_view.itemAt(point)
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# Decide if we have to show the context menu or not.
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if item is None:
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return
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if not item.flags() & QtCore.Qt.ItemIsSelectable:
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return
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self.menu.exec(self.list_view.mapToGlobal(point))
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def get_file_list(self):
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"""
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Return the current list of files
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"""
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file_list = []
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for index in range(self.list_view.count()):
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list_item = self.list_view.item(index)
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filename = list_item.data(QtCore.Qt.UserRole)
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file_list.append(filename)
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return file_list
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def load_list(self, load_list, target_group):
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"""
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Load a list. Needs to be implemented by the plugin.
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:param load_list: List object to load
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:param target_group: Group to load
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"""
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raise NotImplementedError('MediaManagerItem.loadList needs to be defined by the plugin')
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def on_new_click(self):
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"""
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Hook for plugins to define behaviour for adding new items.
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"""
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pass
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def on_edit_click(self):
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"""
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Hook for plugins to define behaviour for editing items.
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"""
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pass
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def on_delete_click(self):
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"""
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Delete an item. Needs to be implemented by the plugin.
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"""
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raise NotImplementedError('MediaManagerItem.on_delete_click needs to be defined by the plugin')
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def on_focus(self):
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"""
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Run when a tab in the media manager gains focus. This gives the media
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item a chance to focus any elements it wants to.
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"""
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pass
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def generate_slide_data(self, service_item, item=None, xml_version=False, remote=False,
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context=ServiceItemContext.Live):
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"""
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Generate the slide data. Needs to be implemented by the plugin.
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:param service_item: The service Item to be processed
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:param item: The database item to be used to build the service item
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:param xml_version:
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:param remote: Was this remote triggered (False)
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:param context: The service context
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"""
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raise NotImplementedError('MediaManagerItem.generate_slide_data needs to be defined by the plugin')
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def on_double_clicked(self):
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"""
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Allows the list click action to be determined dynamically
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"""
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if Settings().value('advanced/double click live'):
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self.on_live_click()
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elif not Settings().value('advanced/single click preview'):
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# NOTE: The above check is necessary to prevent bug #1419300
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self.on_preview_click()
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def on_selection_change(self):
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"""
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Allows the change of current item in the list to be actioned
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"""
|
|
if Settings().value('advanced/single click preview') and self.quick_preview_allowed \
|
|
and self.list_view.selectedIndexes() and self.auto_select_id == -1:
|
|
self.on_preview_click(True)
|
|
|
|
def on_preview_click(self, keep_focus=False):
|
|
"""
|
|
Preview an item by building a service item then adding that service item to the preview slide controller.
|
|
|
|
:param keep_focus: Do we keep focus (False)
|
|
"""
|
|
if not self.list_view.selectedIndexes() and not self.remote_triggered:
|
|
QtWidgets.QMessageBox.information(self, UiStrings().NISp,
|
|
translate('OpenLP.MediaManagerItem',
|
|
'You must select one or more items to preview.'))
|
|
else:
|
|
log.debug('%s Preview requested' % self.plugin.name)
|
|
Registry().set_flag('has doubleclick added item to service', False)
|
|
service_item = self.build_service_item()
|
|
if service_item:
|
|
service_item.from_plugin = True
|
|
self.preview_controller.add_service_item(service_item)
|
|
if not keep_focus:
|
|
self.preview_controller.preview_widget.setFocus()
|
|
|
|
def on_live_click(self):
|
|
"""
|
|
Send an item live by building a service item then adding that service item to the live slide controller.
|
|
"""
|
|
if not self.list_view.selectedIndexes():
|
|
QtWidgets.QMessageBox.information(self, UiStrings().NISp,
|
|
translate('OpenLP.MediaManagerItem',
|
|
'You must select one or more items to send live.'))
|
|
else:
|
|
self.go_live()
|
|
|
|
def go_live_remote(self, message):
|
|
"""
|
|
Remote Call wrapper
|
|
|
|
:param message: The passed data item_id:Remote.
|
|
"""
|
|
self.go_live(message[0], remote=message[1])
|
|
|
|
def go_live(self, item_id=None, remote=False):
|
|
"""
|
|
Make the currently selected item go live.
|
|
|
|
:param item_id: item to make live
|
|
:param remote: From Remote
|
|
"""
|
|
log.debug('%s Live requested', self.plugin.name)
|
|
item = None
|
|
if item_id:
|
|
item = self.create_item_from_id(item_id)
|
|
service_item = self.build_service_item(item, remote=remote)
|
|
if service_item:
|
|
if not item_id:
|
|
service_item.from_plugin = True
|
|
if remote:
|
|
service_item.will_auto_start = True
|
|
self.live_controller.add_service_item(service_item)
|
|
self.live_controller.preview_widget.setFocus()
|
|
|
|
def create_item_from_id(self, item_id):
|
|
"""
|
|
Create a media item from an item id.
|
|
|
|
:param item_id: Id to make live
|
|
"""
|
|
item = QtWidgets.QListWidgetItem()
|
|
item.setData(QtCore.Qt.UserRole, item_id)
|
|
return item
|
|
|
|
def on_add_click(self):
|
|
"""
|
|
Add a selected item to the current service
|
|
"""
|
|
if not self.list_view.selectedIndexes():
|
|
QtWidgets.QMessageBox.information(self, UiStrings().NISp,
|
|
translate('OpenLP.MediaManagerItem',
|
|
'You must select one or more items to add.'))
|
|
else:
|
|
# Is it possible to process multiple list items to generate
|
|
# multiple service items?
|
|
if self.single_service_item:
|
|
log.debug('{plugin} Add requested'.format(plugin=self.plugin.name))
|
|
self.add_to_service(replace=self.remote_triggered)
|
|
else:
|
|
items = self.list_view.selectedIndexes()
|
|
drop_position = self.service_manager.get_drop_position()
|
|
for item in items:
|
|
self.add_to_service(item, position=drop_position)
|
|
if drop_position != -1:
|
|
drop_position += 1
|
|
|
|
def add_to_service_remote(self, message):
|
|
"""
|
|
Remote Call wrapper
|
|
|
|
:param message: The passed data item:Remote.
|
|
"""
|
|
self.add_to_service(message[0], remote=message[1])
|
|
|
|
def add_to_service(self, item=None, replace=None, remote=False, position=-1):
|
|
"""
|
|
Add this item to the current service.
|
|
|
|
:param item: Item to be processed
|
|
:param replace: Replace the existing item
|
|
:param remote: Triggered from remote
|
|
:param position: Position to place item
|
|
"""
|
|
service_item = self.build_service_item(item, True, remote=remote, context=ServiceItemContext.Service)
|
|
if service_item:
|
|
service_item.from_plugin = False
|
|
self.service_manager.add_service_item(service_item, replace=replace, position=position)
|
|
|
|
def on_add_edit_click(self):
|
|
"""
|
|
Add a selected item to an existing item in the current service.
|
|
"""
|
|
if not self.list_view.selectedIndexes() and not self.remote_triggered:
|
|
QtWidgets.QMessageBox.information(self, UiStrings().NISp,
|
|
translate('OpenLP.MediaManagerItem',
|
|
'You must select one or more items.'))
|
|
else:
|
|
log.debug('{plugin} Add requested'.format(plugin=self.plugin.name))
|
|
service_item = self.service_manager.get_service_item()
|
|
if not service_item:
|
|
QtWidgets.QMessageBox.information(self, UiStrings().NISs,
|
|
translate('OpenLP.MediaManagerItem',
|
|
'You must select an existing service item to add to.'))
|
|
elif self.plugin.name == service_item.name:
|
|
self.generate_slide_data(service_item)
|
|
self.service_manager.add_service_item(service_item, replace=True)
|
|
else:
|
|
# Turn off the remote edit update message indicator
|
|
QtWidgets.QMessageBox.information(self, translate('OpenLP.MediaManagerItem', 'Invalid Service Item'),
|
|
translate('OpenLP.MediaManagerItem',
|
|
'You must select a {title} '
|
|
'service item.').format(title=self.title))
|
|
|
|
def build_service_item(self, item=None, xml_version=False, remote=False, context=ServiceItemContext.Live):
|
|
"""
|
|
Common method for generating a service item
|
|
:param item: Service Item to be built.
|
|
:param xml_version: version of XML (False)
|
|
:param remote: Remote triggered (False)
|
|
:param context: The context on which this is called
|
|
"""
|
|
service_item = ServiceItem(self.plugin)
|
|
service_item.add_icon(self.plugin.icon_path)
|
|
if self.generate_slide_data(service_item, item, xml_version, remote, context):
|
|
return service_item
|
|
else:
|
|
return None
|
|
|
|
def service_load(self, item):
|
|
"""
|
|
Method to add processing when a service has been loaded and individual service items need to be processed by the
|
|
plugins.
|
|
|
|
:param item: The item to be processed and returned.
|
|
"""
|
|
return item
|
|
|
|
def check_search_result(self):
|
|
"""
|
|
Checks if the list_view is empty and adds a "No Search Results" item.
|
|
"""
|
|
if self.list_view.count():
|
|
return
|
|
message = translate('OpenLP.MediaManagerItem', 'No Search Results')
|
|
item = QtWidgets.QListWidgetItem(message)
|
|
item.setFlags(QtCore.Qt.NoItemFlags)
|
|
font = QtGui.QFont()
|
|
font.setItalic(True)
|
|
item.setFont(font)
|
|
self.list_view.addItem(item)
|
|
|
|
def check_search_result_search_while_typing_short(self):
|
|
"""
|
|
This is used in Bible "Search while typing" if the search is shorter than the min required len.
|
|
"""
|
|
if self.list_view.count():
|
|
return
|
|
message = translate('OpenLP.MediaManagerItem', 'Search is too short to be used in: "Search while typing"')
|
|
item = QtWidgets.QListWidgetItem(message)
|
|
item.setFlags(QtCore.Qt.NoItemFlags)
|
|
font = QtGui.QFont()
|
|
font.setItalic(True)
|
|
item.setFont(font)
|
|
self.list_view.addItem(item)
|
|
|
|
def _get_id_of_item_to_generate(self, item, remote_item):
|
|
"""
|
|
Utility method to check items being submitted for slide generation.
|
|
|
|
:param item: The item to check.
|
|
:param remote_item: The id to assign if the slide generation was remotely triggered.
|
|
"""
|
|
if item is None:
|
|
if self.remote_triggered is None:
|
|
item = self.list_view.currentItem()
|
|
if item is None:
|
|
return False
|
|
item_id = item.data(QtCore.Qt.UserRole)
|
|
else:
|
|
item_id = remote_item
|
|
else:
|
|
item_id = item.data(QtCore.Qt.UserRole)
|
|
return item_id
|
|
|
|
def save_auto_select_id(self):
|
|
"""
|
|
Sorts out, what item to select after loading a list.
|
|
"""
|
|
# The item to select has not been set.
|
|
if self.auto_select_id == -1:
|
|
item = self.list_view.currentItem()
|
|
if item:
|
|
self.auto_select_id = item.data(QtCore.Qt.UserRole)
|
|
|
|
def search(self, string, show_error=True):
|
|
"""
|
|
Performs a plugin specific search for items containing ``string``
|
|
|
|
:param string: String to be displayed
|
|
:param show_error: Should the error be shown (True)
|
|
"""
|
|
raise NotImplementedError('Plugin.search needs to be defined by the plugin')
|