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3f700e5d0c
It doesn't make sense to show a footer when items are retrieved in one go. Except when an error occurs. Contributes to CURA-8558
93 lines
2.8 KiB
Python
93 lines
2.8 KiB
Python
# Copyright (c) 2021 Ultimaker B.V.
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# Cura is released under the terms of the LGPLv3 or higher.
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from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, Qt
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from typing import TYPE_CHECKING
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from UM.i18n import i18nCatalog
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from UM.Qt.ListModel import ListModel
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if TYPE_CHECKING:
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from PyQt5.QtCore import QObject
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catalog = i18nCatalog("cura")
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class PackageList(ListModel):
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PackageRole = Qt.UserRole + 1
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def __init__(self, parent: "QObject" = None) -> None:
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super().__init__(parent)
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self._error_message = ""
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self.addRoleName(self.PackageRole, "package")
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self._is_loading = False
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self._has_more = False
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self._has_footer = True
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@pyqtSlot()
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def updatePackages(self) -> None:
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"""
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Initialize the first page of packages
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"""
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self.setErrorMessage("") # Clear any previous errors.
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self.isLoadingChanged.emit()
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@pyqtSlot()
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def abortUpdating(self) -> None:
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pass
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def reset(self) -> None:
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self.clear()
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isLoadingChanged = pyqtSignal()
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def setIsLoading(self, value: bool) -> None:
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if self._is_loading != value:
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self._is_loading = value
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self.isLoadingChanged.emit()
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@pyqtProperty(bool, fset = setIsLoading, notify = isLoadingChanged)
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def isLoading(self) -> bool:
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"""
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Gives whether the list is currently loading the first page or loading more pages.
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:return: ``True`` if the list is being gathered, or ``False`` if .
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"""
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return self._is_loading
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hasMoreChanged = pyqtSignal()
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def setHasMore(self, value: bool) -> None:
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if self._has_more != value:
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self._has_more = value
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self.hasMoreChanged.emit()
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@pyqtProperty(bool, fset = setHasMore, notify = hasMoreChanged)
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def hasMore(self) -> bool:
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"""
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Returns whether there are more packages to load.
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:return: ``True`` if there are more packages to load, or ``False`` if we've reached the last page of the
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pagination.
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"""
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return self._has_more
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def setErrorMessage(self, error_message: str) -> None:
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if self._error_message != error_message:
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self._error_message = error_message
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self.errorMessageChanged.emit()
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errorMessageChanged = pyqtSignal()
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@pyqtProperty(str, notify = errorMessageChanged, fset = setErrorMessage)
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def errorMessage(self) -> str:
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"""
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If an error occurred getting the list of packages, an error message will be held here.
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If no error occurred (yet), this will be an empty string.
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:return: An error message, if any, or an empty string if everything went okay.
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"""
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return self._error_message
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@pyqtProperty(bool, constant = True)
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def hasFooter(self) -> bool:
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return self._has_footer
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