From 5f8cec638327e2541a4e4c165668b5c5897acb35 Mon Sep 17 00:00:00 2001
From: Matthias Melcher <fltk@matthiasm.com>
Date: Sat, 24 Mar 2018 17:21:36 +0000
Subject: Android: Even rougherer cut to make the keyboard pop up.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12795 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/drivers/Android/Fl_Android_Screen_Driver.cxx | 89 ++++++++++++++++++++++++
 1 file changed, 89 insertions(+)

(limited to 'src/drivers/Android/Fl_Android_Screen_Driver.cxx')

diff --git a/src/drivers/Android/Fl_Android_Screen_Driver.cxx b/src/drivers/Android/Fl_Android_Screen_Driver.cxx
index 18700bca7..061658315 100644
--- a/src/drivers/Android/Fl_Android_Screen_Driver.cxx
+++ b/src/drivers/Android/Fl_Android_Screen_Driver.cxx
@@ -1133,8 +1133,97 @@ void Fl_Android_Screen_Driver::remove_timeout(Fl_Timeout_Handler cb, void *data)
 void Fl_Android_Screen_Driver::request_keyboard()
 {
   if (pKeyboardCount==0) {
+    /*
     ANativeActivity_showSoftInput(Fl_Android_Application::get_activity(),
                                   ANATIVEACTIVITY_SHOW_SOFT_INPUT_IMPLICIT);
+    */
+//    void displayKeyboard(bool pShow)
+    bool pShow = true;
+    {
+      // Attaches the current thread to the JVM.
+      jint lResult;
+      jint lFlags = 0;
+
+      JavaVM* lJavaVM = Fl_Android_Application::get_activity()->vm;
+      JNIEnv* lJNIEnv = Fl_Android_Application::get_activity()->env;
+
+      JavaVMAttachArgs lJavaVMAttachArgs;
+      lJavaVMAttachArgs.version = JNI_VERSION_1_6;
+      lJavaVMAttachArgs.name = "NativeThread";
+      lJavaVMAttachArgs.group = NULL;
+
+      lResult=lJavaVM->AttachCurrentThread(&lJNIEnv, &lJavaVMAttachArgs);
+      if (lResult == JNI_ERR) {
+        return;
+      }
+
+      // Retrieves NativeActivity.
+      jobject lNativeActivity = Fl_Android_Application::get_activity()->clazz;
+      jclass ClassNativeActivity = lJNIEnv->GetObjectClass(lNativeActivity);
+
+      // Retrieves Context.INPUT_METHOD_SERVICE.
+      jclass ClassContext = lJNIEnv->FindClass("android/content/Context");
+      jfieldID FieldINPUT_METHOD_SERVICE =
+              lJNIEnv->GetStaticFieldID(ClassContext,
+                                        "INPUT_METHOD_SERVICE", "Ljava/lang/String;");
+      jobject INPUT_METHOD_SERVICE =
+              lJNIEnv->GetStaticObjectField(ClassContext,
+                                            FieldINPUT_METHOD_SERVICE);
+//      jniCheck(INPUT_METHOD_SERVICE);
+
+      // Runs getSystemService(Context.INPUT_METHOD_SERVICE).
+      jclass ClassInputMethodManager = lJNIEnv->FindClass(
+              "android/view/inputmethod/InputMethodManager");
+      jmethodID MethodGetSystemService = lJNIEnv->GetMethodID(
+              ClassNativeActivity, "getSystemService",
+              "(Ljava/lang/String;)Ljava/lang/Object;");
+      jobject lInputMethodManager = lJNIEnv->CallObjectMethod(
+              lNativeActivity, MethodGetSystemService,
+              INPUT_METHOD_SERVICE);
+
+      // Runs getWindow().getDecorView().
+      jmethodID MethodGetWindow = lJNIEnv->GetMethodID(
+              ClassNativeActivity, "getWindow",
+              "()Landroid/view/Window;");
+      jobject lWindow = lJNIEnv->CallObjectMethod(lNativeActivity,
+                                                  MethodGetWindow);
+      jclass ClassWindow = lJNIEnv->FindClass(
+              "android/view/Window");
+      jmethodID MethodGetDecorView = lJNIEnv->GetMethodID(
+              ClassWindow, "getDecorView", "()Landroid/view/View;");
+      jobject lDecorView = lJNIEnv->CallObjectMethod(lWindow,
+                                                     MethodGetDecorView);
+
+      if (pShow) {
+        // Runs lInputMethodManager.showSoftInput(...).
+        jmethodID MethodShowSoftInput = lJNIEnv->GetMethodID(
+                ClassInputMethodManager, "showSoftInput",
+                "(Landroid/view/View;I)Z");
+        jboolean lResult = lJNIEnv->CallBooleanMethod(
+                lInputMethodManager, MethodShowSoftInput,
+                lDecorView, lFlags);
+      } else {
+        // Runs lWindow.getViewToken()
+        jclass ClassView = lJNIEnv->FindClass(
+                "android/view/View");
+        jmethodID MethodGetWindowToken = lJNIEnv->GetMethodID(
+                ClassView, "getWindowToken", "()Landroid/os/IBinder;");
+        jobject lBinder = lJNIEnv->CallObjectMethod(lDecorView,
+                                                    MethodGetWindowToken);
+
+        // lInputMethodManager.hideSoftInput(...).
+        jmethodID MethodHideSoftInput = lJNIEnv->GetMethodID(
+                ClassInputMethodManager, "hideSoftInputFromWindow",
+                "(Landroid/os/IBinder;I)Z");
+        jboolean lRes = lJNIEnv->CallBooleanMethod(
+                lInputMethodManager, MethodHideSoftInput,
+                lBinder, lFlags);
+      }
+
+      // Finished with the JVM.
+      lJavaVM->DetachCurrentThread();
+    }
+
   }
   pKeyboardCount++;
 }
-- 
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