Add generic recipe for C++ extensions using STL and recipes for Enaml, Atom, Kiwisolver

pythonforandroid/bootstraps/sdl2/build/src/org/kivy/android/PythonActivity.java

@@ -310,7 +310,8 @@ public void keepActive() {
     public void removeLoadingScreen() {
       runOnUiThread(new Runnable() {
         public void run() {
-          if (PythonActivity.mImageView != null) {
+          if (PythonActivity.mImageView != null && 
+        		  PythonActivity.mImageView.getParent() != null) {
             ((ViewGroup)PythonActivity.mImageView.getParent()).removeView(
             PythonActivity.mImageView);
             PythonActivity.mImageView = null;

pythonforandroid/recipe.py

@@ -900,6 +900,43 @@ def rebuild_compiled_components(self, arch, env):
         shprint(hostpython, 'setup.py', self.build_cmd, '-v', _env=env,
                 *self.setup_extra_args)
 
+class CppCompiledComponentsPythonRecipe(CompiledComponentsPythonRecipe):
+    """ Extensions that require the cxx-stl """
+    call_hostpython_via_targetpython = False
+
+    def get_recipe_env(self, arch):
+        env = super(CppCompiledComponentsPythonRecipe, self).get_recipe_env(arch)
+        keys = dict(
+            ctx=self.ctx,
+            arch=arch,
+            arch_noeabi=arch.arch.replace('eabi', ''),
+            pyroot=self.ctx.get_python_install_dir()
+        )
+        env['LDSHARED'] = env['CC'] + ' -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions'
+        env['CFLAGS'] += " -I{pyroot}/include/python2.7 " \
+                        " -I{ctx.ndk_dir}/platforms/android-{ctx.android_api}/arch-{arch_noeabi}/usr/include" \
+                        " -I{ctx.ndk_dir}/sources/cxx-stl/gnu-libstdc++/{ctx.toolchain_version}/include" \
+                        " -I{ctx.ndk_dir}/sources/cxx-stl/gnu-libstdc++/{ctx.toolchain_version}/libs/{arch.arch}/include".format(**keys)
+        env['CXXFLAGS'] = env['CFLAGS'] + ' -frtti -fexceptions'
+        env['LDFLAGS'] += " -L{ctx.ndk_dir}/sources/cxx-stl/gnu-libstdc++/{ctx.toolchain_version}/libs/{arch.arch}" \
+                " -lpython2.7" \
+                " -lgnustl_shared".format(**keys)
+
+
+        return env
+
+    def build_compiled_components(self,arch):
+        super(CppCompiledComponentsPythonRecipe, self).build_compiled_components(arch)
+
+        # Copy libgnustl_shared.so
+        with current_directory(self.get_build_dir(arch.arch)):
+            sh.cp(
+                "{ctx.ndk_dir}/sources/cxx-stl/gnu-libstdc++/{ctx.toolchain_version}/libs/{arch.arch}/libgnustl_shared.so".format(ctx=self.ctx,arch=arch),
+                self.ctx.get_libs_dir(arch.arch)
+            )
+
+
+
 
 class CythonRecipe(PythonRecipe):
     pre_build_ext = False

pythonforandroid/recipes/atom/__init__.py

@@ -0,0 +1,9 @@
+from pythonforandroid.recipe import CppCompiledComponentsPythonRecipe
+
+class AtomRecipe(CppCompiledComponentsPythonRecipe):
+    site_packages_name = 'atom'
+    version = '0.3.10'
+    url = 'https://github.com/nucleic/atom/archive/master.zip'
+    depends = ['python2','setuptools']
+
+recipe = AtomRecipe()

pythonforandroid/recipes/enaml/0001-Update-setup.py.patch

@@ -0,0 +1,25 @@
+From 156a0426f7350bf49bdfae1aad555e13c9494b9a Mon Sep 17 00:00:00 2001
+From: frmdstryr <frmdstryr@gmail.com>
+Date: Thu, 23 Jun 2016 22:04:32 -0400
+Subject: [PATCH] Update setup.py
+
+---
+ setup.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/setup.py b/setup.py
+index 3bfd2a2..99817e5 100644
+--- a/setup.py
++++ b/setup.py
+@@ -72,7 +72,7 @@ setup(
+     url='https://github.com/nucleic/enaml',
+     description='Declarative DSL for building rich user interfaces in Python',
+     long_description=open('README.rst').read(),
+-    requires=['atom', 'PyQt', 'ply', 'kiwisolver'],
++    requires=['atom', 'ply', 'kiwisolver'],
+     install_requires=['distribute', 'atom >= 0.3.8', 'kiwisolver >= 0.1.2', 'ply >= 3.4'],
+     packages=find_packages(),
+     package_data={
+-- 
+2.7.4
+

pythonforandroid/recipes/enaml/__init__.py

@@ -0,0 +1,10 @@
+from pythonforandroid.recipe import CppCompiledComponentsPythonRecipe
+
+class EnamlRecipe(CppCompiledComponentsPythonRecipe):
+    site_packages_name = 'enaml'
+    version = '0.9.8'
+    url = 'https://github.com/nucleic/enaml/archive/master.zip'
+    patches = ['0001-Update-setup.py.patch'] # Remove PyQt dependency
+    depends = ['python2','setuptools','atom','kiwisolver']
+
+recipe = EnamlRecipe()

pythonforandroid/recipes/kiwisolver/__init__.py

@@ -0,0 +1,9 @@
+from pythonforandroid.recipe import CppCompiledComponentsPythonRecipe
+
+class KiwiSolverRecipe(CppCompiledComponentsPythonRecipe):
+    site_packages_name = 'kiwisolver'
+    version = '0.1.3'
+    url = 'https://github.com/nucleic/kiwi/archive/master.zip'
+    depends = ['python2']
+
+recipe = KiwiSolverRecipe()