--- a/eric6/Helpviewer/OfflineStorage/WebDatabasesModel.py Sat Sep 07 14:45:27 2019 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,236 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Copyright (c) 2010 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
-#
-
-"""
-Module implementing the web databases model.
-"""
-
-from __future__ import unicode_literals
-
-import sys
-
-from PyQt5.QtCore import QAbstractItemModel, QModelIndex, Qt
-from PyQt5.QtWebKit import QWebSecurityOrigin, QWebDatabase
-
-
-class WebDatabasesModel(QAbstractItemModel):
- """
- Class implementing the web databases model.
- """
- def __init__(self, parent=None):
- """
- Constructor
-
- @param parent reference to the parent object (QObject)
- """
- super(WebDatabasesModel, self).__init__(parent)
- self.__headers = [
- self.tr("Name"),
- self.tr("Size")
- ]
-
- self.__data = []
- for origin in QWebSecurityOrigin.allOrigins():
- self.__data.append([origin, origin.databases()])
-
- def removeRows(self, row, count, parent=None):
- """
- Public method to remove databases from the model.
-
- @param row row of the first database to remove (integer)
- @param count number of databases to remove (integer)
- @param parent index of the security origin (QModelIndex)
- @return flag indicating successful removal (boolean)
- """
- if parent is None:
- parent = QModelIndex()
-
- if row < 0 or count <= 0 or row + count > self.rowCount(parent):
- return False
-
- if parent.isValid():
- self.beginRemoveRows(parent, row, row + count - 1)
- parentRow = parent.row()
- for db in self.__data[parentRow][1][row:row + count]:
- QWebDatabase.removeDatabase(db)
- del self.__data[parentRow][1][row:row + count]
- self.endRemoveRows()
- else:
- for parentRow in range(row, row + count):
- self.beginRemoveRows(self.index(parentRow, 0, parent),
- 0, len(self.__data[parentRow][1]) - 1)
- for db in self.__data[parentRow][1]:
- QWebDatabase.removeDatabase(db)
- del self.__data[parentRow][1][:]
- self.endRemoveRows()
-
- return True
-
- def headerData(self, section, orientation, role=Qt.DisplayRole):
- """
- Public method to get the header data.
-
- @param section section number (integer)
- @param orientation header orientation (Qt.Orientation)
- @param role data role (integer)
- @return header data
- """
- if orientation == Qt.Horizontal and role == Qt.DisplayRole:
- try:
- return self.__headers[section]
- except IndexError:
- pass
- return QAbstractItemModel.headerData(self, section, orientation, role)
-
- def data(self, index, role=Qt.DisplayRole):
- """
- Public method to get data from the model.
-
- @param index index of entry to get data for (QModelIndex)
- @param role data role (integer)
- @return entry data
- """
- if not index.isValid() or index.model() != self:
- return None
-
- if role == Qt.DisplayRole:
- parent = index.parent()
- if not parent.isValid():
- # security origin
- origin = self.__data[index.row()][0]
- if index.column() == 0:
- if origin.host() == "":
- return self.tr("Local")
- elif origin.port() == 0:
- return "{0}://{1}".format(
- origin.scheme(),
- origin.host(),
- )
- else:
- return "{0}://{1}:{2}".format(
- origin.scheme(),
- origin.host(),
- origin.port(),
- )
- elif index.column() == 1:
- return self.__dataString(origin.databaseUsage())
- else:
- # web database
- db = self.__data[parent.row()][1][index.row()]
- if index.column() == 0:
- return self.tr("{0} ({1})").format(
- db.displayName(), db.name())
- elif index.column() == 1:
- return self.__dataString(db.size())
-
- return None
-
- def columnCount(self, parent=None):
- """
- Public method to get the number of columns.
-
- @param parent index of parent (QModelIndex)
- @return number of columns (integer)
- """
- if parent is None:
- parent = QModelIndex()
-
- if parent.column() > 0:
- return 0
- else:
- return len(self.__headers)
-
- def rowCount(self, parent=None):
- """
- Public method to determine the number of rows.
-
- @param parent index of parent (QModelIndex)
- @return number of rows (integer)
- """
- if parent is None:
- parent = QModelIndex()
-
- if parent.column() > 0:
- return 0
-
- if not parent.isValid():
- return len(self.__data)
- else:
- return len(self.__data[parent.row()][1])
-
- def index(self, row, column, parent=None):
- """
- Public method to get a model index for an entry.
-
- @param row row number (integer)
- @param column column number (integer)
- @param parent index of the parent (QModelIndex)
- @return index (QModelIndex)
- """
- if parent is None:
- parent = QModelIndex()
-
- if row < 0 or column < 0 or \
- row >= self.rowCount(parent) or column >= self.columnCount(parent):
- return QModelIndex()
-
- if parent.isValid():
- return self.createIndex(row, column, parent.row())
- else:
- return self.createIndex(row, column, sys.maxsize)
-
- def parent(self, index=None):
- """
- Public method to get the index of the parent entry.
-
- @param index index of the child entry (QModelIndex)
- @return index of the parent entry (QModelIndex)
- """
- if index is None:
- index = QModelIndex()
-
- if not index.isValid():
- return QModelIndex()
-
- if index.internalId() == sys.maxsize:
- return QModelIndex()
-
- return self.createIndex(index.internalId(), 0)
-
- def hasChildren(self, parent=None):
- """
- Public method to check, if a parent node has some children.
-
- @param parent index of the parent node (QModelIndex)
- @return flag indicating the presence of children (boolean)
- """
- if parent is None:
- parent = QModelIndex()
-
- if not parent.isValid():
- return True
-
- if parent.internalId() == sys.maxsize:
- return True
-
- return False
-
- def __dataString(self, size):
- """
- Private method to generate a formatted data string.
-
- @param size size to be formatted (integer)
- @return formatted data string (string)
- """
- unit = ""
- if size < 1024:
- unit = self.tr("bytes")
- elif size < 1024 * 1024:
- size /= 1024
- unit = self.tr("kB")
- else:
- size /= 1024 * 1024
- unit = self.tr("MB")
- return "{0:.1f} {1}".format(size, unit)
