Support builds with Conan

Provide conanfile.py recipe to support building this module
with Conan. The conanfile.py recipe inherits the main
functionality from base class located in qt-conan-common.git.

'qt-configure-module(.bat)' and cmake is used for the builds.

Dependencies (Conan requirements) are defined by the base
class implementation which reads those from the
'dependencies.yaml' which is also used by the Coin/CI.

Task-number: QTBUG-94909
Change-Id: Ibe186eba4c3177c6f0cc7e397c395df0c8cb6d20
Reviewed-by: Jani Heikkinen <jani.heikkinen@qt.io>
Reviewed-by: Toni Saario <toni.saario@qt.io>
(cherry picked from commit a68e93ade8ae39e2b11904d2c3115c9d69e87932)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 79 insertions, 0 deletions

diff --git a/.cmake.conf b/.cmake.conf
index 4e73b3d60..4aa8eb1fd 100644
--- a/.cmake.conf
+++ b/.cmake.conf
@@ -1 +1,2 @@
 set(QT_REPO_MODULE_VERSION "6.2.0")
+set(QT_REPO_MODULE_PRERELEASE_VERSION_SEGMENT "alpha1")
diff --git a/conanfile.py b/conanfile.py
new file mode 100644
index 000000000..d0c0c7303
--- /dev/null
+++ b/conanfile.py
@@ -0,0 +1,78 @@
+#############################################################################
+##
+## Copyright (C) 2021 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the release tools of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:GPL-EXCEPT$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 as published by the Free Software
+## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+from conans import ConanFile
+import re
+from pathlib import Path
+from typing import Dict, Any
+
+_qtwebengine_features = [
+    "qtpdf-build",
+    "qtwebengine-build",
+    "qtwebengine-quick-build",
+    "qtwebengine-widgets-build",
+    "webengine-developer-build",
+]
+
+
+def _parse_qt_version_by_key(key: str) -> str:
+    with open(Path(__file__).parent.resolve() / ".cmake.conf") as f:
+        m = re.search(fr'{key} .*"(.*)"', f.read())
+    return m.group(1) if m else ""
+
+
+def _get_qt_minor_version() -> str:
+    return ".".join(_parse_qt_version_by_key("QT_REPO_MODULE_VERSION").split(".")[:2])
+
+
+class QtWebEngine(ConanFile):
+    name = "qtwebengine"
+    license = "LGPL-3.0-only, Commercial Qt License Agreement"
+    author = "The Qt Company <https://www.qt.io/contact-us>"
+    url = "https://code.qt.io/cgit/qt/qtwebengine.git"
+    description = (
+        "Qt WebEngine integrates Chromium's fast moving web capabilities into Qt. "
+        "The integration with Qt focuses on an API that is easy to use, yet extensible. "
+        "We also make no compromise on the graphics integration, integrating the layer "
+        "rendering of Chromium directly into the OpenGL scene graph of Qt Quick."
+    )
+    topics = "qt", "qt6", "qtwebengine", "WebEngine", "Chromium"
+    settings = "os", "compiler", "arch", "build_type"
+    # for referencing the version number and prerelease tag and dependencies info
+    exports = ".cmake.conf", "dependencies.yaml"
+    exports_sources = "*", "!conan*.*"
+    python_requires = f"qt-conan-common/{_get_qt_minor_version()}@qt/everywhere"
+    python_requires_extend = "qt-conan-common.QtLeafModule"
+
+    def get_qt_leaf_module_options(self) -> Dict[str, Any]:
+        """Implements abstractmethod from qt-conan-common.QtLeafModule"""
+        return {item.replace("-", "_"): ["yes", "no", None] for item in _qtwebengine_features}
+
+    def get_qt_leaf_module_default_options(self) -> Dict[str, Any]:
+        """Implements abstractmethod from qt-conan-common.QtLeafModule"""
+        return {item.replace("-", "_"): None for item in _qtwebengine_features}