Initial version

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/

LICENSE.md

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+# MIT License
+
+Copyright (c) 2020 PyXLL Ltd
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

MANIFEST.in

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+recursive-include * *.xml *.png

pyxll_jupyter/__init__.py

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+"""
+PyXLL-Jupyter
+
+This package integrated Jupyter notebooks into Microsoft Excel.
+
+To install it, first install PyXLL (see https://www.pyxll.com).
+
+Briefly, to install PyXLL do the following::
+
+    pip install pyxll
+    pyxll install
+
+Once PyXLL is installed then installing this package will add a
+button to the PyXLL ribbon toolbar that will start a Jupyter
+notebook browser as a custom task pane in Excel.
+
+To install this package use::
+
+    pip install pyxll_jupyter
+"""

pyxll_jupyter/browser.py

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+"""Minimal browser implementation for running Jupyter.
+
+Requires:
+
+pip install PyQt5
+pip install PyQtWebEngine
+
+or
+
+pip install PySide2
+"""
+from .qtimports import *
+import logging
+_log = logging.getLogger(__name__)
+
+
+class Browser(QWidget):
+    """Tabbed browser widget."""
+
+    closed = Signal()
+
+    def __init__(self, parent=None, scale=None):
+        super().__init__(parent)
+        self.profile = QWebEngineProfile()
+        self.tabs = []
+
+        layout = QVBoxLayout()
+        layout.setSpacing(0)
+        layout.setContentsMargins(0, 0, 0, 0)
+
+        self.tab_widget = TabWidget(self, self.profile, scale=scale)
+        self.tab_widget.closed.connect(self.close)
+
+        layout.addWidget(self.tab_widget)
+        self.setLayout(layout)
+
+    def create_tab(self, url):
+        return self.tab_widget.create_tab(url)
+
+    def closeEvent(self, event):
+        self.closed.emit()
+
+
+class TabWidget(QTabWidget):
+    """Tabbed widget containing multiple QWebEngineView
+    as a basic tabbed browser.
+
+    :param parent: Parent widget.
+    :param profile: QWebEngineProfile to use for all tabs.
+    :param scale: Scale for scaling the content for HDI displays.
+    """
+
+    closed = Signal()
+
+    def __init__(self, parent, profile, scale=None):
+        super().__init__(parent)
+        self.profile = profile
+        self.scale = scale
+        self.tabs = []
+
+        tab_bar = self.tabBar()
+        tab_bar.setTabsClosable(True)
+        tab_bar.setSelectionBehaviorOnRemove(QTabBar.SelectPreviousTab)
+        tab_bar.setMovable(True)
+        tab_bar.setContextMenuPolicy(Qt.CustomContextMenu)
+        tab_bar.tabCloseRequested.connect(self.close_tab)
+
+        self.setDocumentMode(True)
+        self.setElideMode(Qt.ElideRight)
+
+    def close_tab(self, index):
+        view = self.widget(index)
+        if view:
+            self.tabs.remove(view)
+            self.removeTab(index)
+            view.deleteLater()
+
+        if len(self.tabs) == 0:
+            self.close()
+
+    def closeEvent(self, event):
+        self.closed.emit()
+
+    def create_tab(self, url=None):
+        view = WebView(self)
+        self.tabs.append(view)
+        page = QWebEnginePage(self.profile, view)
+        view.setPage(page)
+
+        if self.scale:
+            view.setZoomFactor(self.scale)
+
+        self.addTab(view, "Loading...")
+        view.resize(self.currentWidget().size())
+        self.__setup_view(view)
+        self.setCurrentWidget(view)
+        view.show()
+
+        if url is not None:
+            page.setUrl(QUrl(url))
+
+        def url_changed(url):
+            _log.info("Loading page: %s" % url)
+
+        page.urlChanged.connect(url_changed)
+
+        return view
+
+    def __setup_view(self, view):
+        page = view.page()
+
+        def title_changed(title):
+            index = self.indexOf(view)
+            if index != -1:
+                self.setTabText(index, title)
+                self.setTabToolTip(index, title)
+
+        view.titleChanged.connect(title_changed)
+
+        def url_changed(url):
+            index = self.indexOf(view)
+            if index != -1:
+                self.tabBar().setTabData(index, url)
+
+        view.urlChanged.connect(url_changed)
+
+        def icon_changed(icon):
+            index = self.indexOf(view)
+            if index != -1:
+                self.setTabIcon(index, icon)
+
+        view.iconChanged.connect(icon_changed)
+
+        def close_requested():
+            index = self.indexOf(view)
+            if index != -1:
+                self.closeTab(index)
+
+        page.windowCloseRequested.connect(close_requested)
+
+
+class WebView(QWebEngineView):
+    """QWebEngineView that implements 'createWindow' so that
+    all new windows are opened in a new tab.
+
+    :param owner: QTabWidget containing this view.
+    """
+
+    def __init__(self, owner):
+        super().__init__()
+        self.__owner = owner
+
+    def createWindow(self, type):
+        if type == QWebEnginePage.WebBrowserTab \
+        or type == QWebEnginePage.WebBrowserBackgroundTab \
+        or type == QWebEnginePage.WebBrowserBackgroundTab:
+            return self.__owner.create_tab()