修复处理内容包括公告 WebView、文件预览页、分享页兜底获取下载链接的隐藏 WebView。

windows/CMakeLists.txt

@@ -32,21 +32,56 @@ set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
 # Use Unicode for all projects.
 add_definitions(-DUNICODE -D_UNICODE)
 
-# flutter_inappwebview_windows requires NuGet; help CMake find it
-if(NOT DEFINED NUGET OR NUGET STREQUAL "NUGET-NOTFOUND")
-  find_program(NUGET nuget PATHS
-    "$ENV{USERPROFILE}\\.local\\bin"
-    "$ENV{LOCALAPPDATA}\\Microsoft\\WinGet\\Links"
-    "C:/ProgramData/chocolatey/bin"
-    NO_DEFAULT_PATH
-  )
-  find_program(NUGET nuget)
-  if(NUGET AND NOT NUGET STREQUAL "NUGET-NOTFOUND")
-    message(STATUS "Found NuGet: ${NUGET}")
-    set(NUGET "${NUGET}" CACHE FILEPATH "nuget executable" FORCE)
+# flutter_inappwebview_windows requires NuGet. The plugin's own CMake only
+# calls find_program(NUGET nuget), so seed the cache with an absolute path.
+if(DEFINED NUGET AND NOT NUGET STREQUAL "" AND NOT NUGET STREQUAL "NUGET-NOTFOUND")
+  if(NOT EXISTS "${NUGET}")
+    unset(NUGET CACHE)
+    unset(NUGET)
   endif()
 endif()
 
+if(NOT DEFINED NUGET OR NUGET STREQUAL "" OR NUGET STREQUAL "NUGET-NOTFOUND")
+  set(_NUGET_CANDIDATES
+    "$ENV{SystemRoot}/System32/nuget.exe"
+    "$ENV{windir}/System32/nuget.exe"
+    "C:/Windows/System32/nuget.exe"
+    "$ENV{SystemRoot}/Sysnative/nuget.exe"
+    "$ENV{windir}/Sysnative/nuget.exe"
+    "C:/Windows/Sysnative/nuget.exe"
+    "$ENV{USERPROFILE}/.local/bin/nuget.exe"
+    "$ENV{LOCALAPPDATA}/Microsoft/WinGet/Links/nuget.exe"
+    "C:/ProgramData/chocolatey/bin/nuget.exe"
+  )
+  foreach(_NUGET_CANDIDATE IN LISTS _NUGET_CANDIDATES)
+    if(EXISTS "${_NUGET_CANDIDATE}")
+      set(NUGET "${_NUGET_CANDIDATE}")
+      break()
+    endif()
+  endforeach()
+endif()
+
+if(NOT DEFINED NUGET OR NUGET STREQUAL "" OR NUGET STREQUAL "NUGET-NOTFOUND")
+  find_program(NUGET NAMES nuget.exe nuget)
+endif()
+
+if(NUGET AND NOT NUGET STREQUAL "NUGET-NOTFOUND")
+  set(_PROJECT_NUGET "${CMAKE_BINARY_DIR}/nuget.exe")
+  execute_process(
+    COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${NUGET}" "${_PROJECT_NUGET}"
+    RESULT_VARIABLE _NUGET_COPY_RESULT
+  )
+  if(_NUGET_COPY_RESULT EQUAL 0 AND EXISTS "${_PROJECT_NUGET}")
+    set(NUGET "${_PROJECT_NUGET}")
+  else()
+    message(WARNING "Failed to copy NuGet to ${_PROJECT_NUGET}; using ${NUGET}")
+  endif()
+  message(STATUS "Found NuGet: ${NUGET}")
+  set(NUGET "${NUGET}" CACHE FILEPATH "nuget executable" FORCE)
+else()
+  message(WARNING "NuGet executable was not found. Windows WebView builds may fail.")
+endif()
+
 # Compilation settings that should be applied to most targets.
 #
 # Be cautious about adding new options here, as plugins use this function by
@@ -125,6 +160,12 @@ ENSURE_WINDOWS_ARCHIVE(
 
 # Generated plugin build rules, which manage building the plugins and adding
 # them to the application.
+if(POLICY CMP0175)
+  # flutter_inappwebview_windows 0.7.0-beta.3 passes DEPENDS to the TARGET
+  # form of add_custom_command. Keep older CMake behavior for plugins that do
+  # not set this policy themselves.
+  set(CMAKE_POLICY_DEFAULT_CMP0175 OLD)
+endif()
 include(flutter/generated_plugins.cmake)
 
 if(MSVC)