From c7f337baebae7423f1cb04722f167728ea7e7036 Mon Sep 17 00:00:00 2001
From: Feodor Fitsner <feodor@appveyor.com>
Date: Mon, 8 Aug 2022 21:00:34 -0700
Subject: [PATCH] Fix container blend mode

---
 client/lib/controls/container.dart | 11 ++++++--
 sdk/python/flet/container.py       | 14 ++++++++++-
 sdk/python/flet/control.py         | 33 ++++++++++++++++++++++++
 sdk/python/flet/shader_mask.py     | 40 +-----------------------------
 4 files changed, 56 insertions(+), 42 deletions(-)

diff --git a/client/lib/controls/container.dart b/client/lib/controls/container.dart
index e7fb34406..fa80e50bb 100644
--- a/client/lib/controls/container.dart
+++ b/client/lib/controls/container.dart
@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'dart:typed_data';
 
+import 'package:collection/collection.dart';
 import 'package:flet_view/utils/animations.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_redux/flutter_redux.dart';
@@ -86,11 +87,17 @@ class ContainerControl extends StatelessWidget {
                 opacity: imageOpacity);
           }
 
+          var gradient = parseGradient(Theme.of(context), control, "gradient");
+          var blendMode = BlendMode.values.firstWhereOrNull((e) =>
+              e.name.toLowerCase() ==
+              control.attrString("blendMode", "")!.toLowerCase());
+
           var boxDecor = BoxDecoration(
               color: bgColor,
-              gradient: parseGradient(Theme.of(context), control, "gradient"),
+              gradient: gradient,
               image: image,
-              backgroundBlendMode: BlendMode.modulate,
+              backgroundBlendMode:
+                  bgColor != null || gradient != null ? blendMode : null,
               border: parseBorder(Theme.of(context), control, "border"),
               borderRadius: parseBorderRadius(control, "borderRadius"));
 
diff --git a/sdk/python/flet/container.py b/sdk/python/flet/container.py
index 7b3699bdb..a1ecd4742 100644
--- a/sdk/python/flet/container.py
+++ b/sdk/python/flet/container.py
@@ -5,7 +5,7 @@
 from flet.alignment import Alignment
 from flet.border import Border
 from flet.constrained_control import ConstrainedControl
-from flet.control import Control, OptionalNumber
+from flet.control import BlendMode, Control, OptionalNumber
 from flet.gradients import Gradient
 from flet.image import ImageFit, ImageRepeat
 from flet.ref import Ref
@@ -59,6 +59,7 @@ def __init__(
         alignment: Alignment = None,
         bgcolor: str = None,
         gradient: Gradient = None,
+        blend_mode: BlendMode = None,
         border: Border = None,
         border_radius: BorderRadiusValue = None,
         image_src: str = None,
@@ -104,6 +105,7 @@ def __init__(
         self.alignment = alignment
         self.bgcolor = bgcolor
         self.gradient = gradient
+        self.blend_mode = blend_mode
         self.border = border
         self.border_radius = border_radius
         self.image_src = image_src
@@ -186,6 +188,16 @@ def gradient(self):
     def gradient(self, value: Optional[Gradient]):
         self.__gradient = value
 
+    # blend_mode
+    @property
+    def blend_mode(self):
+        return self._get_attr("blendMode")
+
+    @blend_mode.setter
+    @beartype
+    def blend_mode(self, value: Optional[BlendMode]):
+        self._set_attr("blendMode", value)
+
     # border
     @property
     def border(self):
diff --git a/sdk/python/flet/control.py b/sdk/python/flet/control.py
index 7bd05f547..b3f7bde05 100644
--- a/sdk/python/flet/control.py
+++ b/sdk/python/flet/control.py
@@ -49,6 +49,39 @@
 
 ScrollMode = Literal[None, True, False, "none", "auto", "adaptive", "always", "hidden"]
 
+BlendMode = Literal[
+    "clear",
+    "color",
+    "colorBurn",
+    "colorDodge",
+    "darken",
+    "difference",
+    "dst",
+    "dstATop",
+    "dstIn",
+    "dstOut",
+    "dstOver",
+    "exclusion",
+    "hardLight",
+    "hue",
+    "lighten",
+    "luminosity",
+    "modulate",
+    "multiply",
+    "overlay",
+    "plus",
+    "saturation",
+    "screen",
+    "softLight",
+    "src",
+    "srcATop",
+    "srcIn",
+    "srcOut",
+    "srcOver",
+    "values",
+    "xor",
+]
+
 
 class Control:
     def __init__(
diff --git a/sdk/python/flet/shader_mask.py b/sdk/python/flet/shader_mask.py
index a19ae9c63..d99fa0ecb 100644
--- a/sdk/python/flet/shader_mask.py
+++ b/sdk/python/flet/shader_mask.py
@@ -3,7 +3,7 @@
 from beartype import beartype
 
 from flet.constrained_control import ConstrainedControl
-from flet.control import Control, OptionalNumber
+from flet.control import BlendMode, Control, OptionalNumber
 from flet.gradients import Gradient
 from flet.ref import Ref
 from flet.types import (
@@ -14,44 +14,6 @@
     ScaleValue,
 )
 
-try:
-    from typing import Literal
-except:
-    from typing_extensions import Literal
-
-BlendMode = Literal[
-    "clear",
-    "color",
-    "colorBurn",
-    "colorDodge",
-    "darken",
-    "difference",
-    "dst",
-    "dstATop",
-    "dstIn",
-    "dstOut",
-    "dstOver",
-    "exclusion",
-    "hardLight",
-    "hue",
-    "lighten",
-    "luminosity",
-    "modulate",
-    "multiply",
-    "overlay",
-    "plus",
-    "saturation",
-    "screen",
-    "softLight",
-    "src",
-    "srcATop",
-    "srcIn",
-    "srcOut",
-    "srcOver",
-    "values",
-    "xor",
-]
-
 
 class ShaderMask(ConstrainedControl):
     def __init__(