diff --git a/app/src/main/java/io/neoterm/backend/TerminalSession.java b/app/src/main/java/io/neoterm/backend/TerminalSession.java
index 0969a43..4a0da59 100755
--- a/app/src/main/java/io/neoterm/backend/TerminalSession.java
+++ b/app/src/main/java/io/neoterm/backend/TerminalSession.java
@@ -92,10 +92,10 @@ public class TerminalSession extends TerminalOutput {
     /** Callback which gets notified when a session finishes or changes title. */
     final SessionChangedCallback mChangeCallback;
 
-    /** The pid of the shell process. 0 if not started and -1 if finished running. */
+    /** The pid of the executablePath process. 0 if not started and -1 if finished running. */
     int mShellPid;
 
-    /** The exit status of the shell process. Only valid if ${@link #mShellPid} is -1. */
+    /** The exit status of the executablePath process. Only valid if ${@link #mShellPid} is -1. */
     int mShellExitStatus;
 
     /**
@@ -227,7 +227,7 @@ public class TerminalSession extends TerminalOutput {
         }.start();
     }
 
-    /** Write data to the shell process. */
+    /** Write data to the executablePath process. */
     @Override
     public void write(byte[] data, int offset, int count) {
         if (mShellPid > 0) mTerminalToProcessIOQueue.write(data, offset, count);
@@ -285,7 +285,7 @@ public class TerminalSession extends TerminalOutput {
         notifyScreenUpdate();
     }
 
-    /** Finish this terminal session by sending SIGKILL to the shell. */
+    /** Finish this terminal session by sending SIGKILL to the executablePath. */
     public void finishIfRunning() {
         if (isRunning()) {
             try {
diff --git a/app/src/main/java/io/neoterm/frontend/ShellParameter.kt b/app/src/main/java/io/neoterm/frontend/ShellParameter.kt
new file mode 100644
index 0000000..5bd863b
--- /dev/null
+++ b/app/src/main/java/io/neoterm/frontend/ShellParameter.kt
@@ -0,0 +1,51 @@
+package io.neoterm.frontend
+
+import io.neoterm.backend.TerminalSession
+
+/**
+ * @author kiva
+ */
+class ShellParameter {
+    var executablePath: String? = null
+    var arguments: Array<String>? = null
+    var cwd: String? = null
+    var initialCommand: String? = null
+    var env: Array<Pair<String, String>>? = null
+    var sessionCallback: TerminalSession.SessionChangedCallback? = null
+    var systemShell: Boolean = false
+
+    fun executablePath(executablePath: String?): ShellParameter {
+        this.executablePath = executablePath
+        return this
+    }
+
+    fun arguments(arguments: Array<String>?): ShellParameter {
+        this.arguments = arguments
+        return this
+    }
+
+    fun currentWorkingDirectory(cwd: String?): ShellParameter {
+        this.cwd = cwd
+        return this
+    }
+
+    fun initialCommand(initialCommand: String?): ShellParameter {
+        this.initialCommand = initialCommand
+        return this
+    }
+
+    fun environment(env: Array<Pair<String, String>>?): ShellParameter {
+        this.env = env
+        return this
+    }
+
+    fun callback(callback: TerminalSession.SessionChangedCallback?): ShellParameter {
+        this.sessionCallback = callback
+        return this
+    }
+
+    fun systemShell(systemShell: Boolean): ShellParameter {
+        this.systemShell = systemShell
+        return this
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/terminal/ShellTermSession.kt b/app/src/main/java/io/neoterm/frontend/ShellTermSession.kt
similarity index 93%
rename from app/src/main/java/io/neoterm/terminal/ShellTermSession.kt
rename to app/src/main/java/io/neoterm/frontend/ShellTermSession.kt
index ab15adc..91772c9 100644
--- a/app/src/main/java/io/neoterm/terminal/ShellTermSession.kt
+++ b/app/src/main/java/io/neoterm/frontend/ShellTermSession.kt
@@ -1,19 +1,19 @@
-package io.neoterm.terminal
+package io.neoterm.frontend
 
 import android.content.Context
 import android.widget.Toast
 import io.neoterm.R
 import io.neoterm.backend.TerminalSession
+import io.neoterm.frontend.client.TermSessionCallback
 import io.neoterm.preference.NeoPreference
 import io.neoterm.preference.NeoTermPath
-import io.neoterm.terminal.client.TermSessionCallback
 import java.io.File
 
 /**
  * @author kiva
  */
 open class ShellTermSession private constructor(shellPath: String, cwd: String, args: Array<String>, env: Array<String>, changeCallback: SessionChangedCallback) : TerminalSession(shellPath, cwd, args, env, changeCallback) {
-    var initialCommand : String? = null
+    var initialCommand: String? = null
 
     override fun initializeEmulator(columns: Int, rows: Int) {
         super.initializeEmulator(columns, rows)
@@ -25,15 +25,15 @@ open class ShellTermSession private constructor(shellPath: String, cwd: String,
     }
 
     class Builder {
-        private var shell: String? = null
+        private var executablePath: String? = null
         private var cwd: String? = null
         private var args: MutableList<String>? = null
         private var env: MutableList<Pair<String, String>>? = null
         private var changeCallback: SessionChangedCallback? = null
         private var systemShell = false
 
-        fun shell(shell: String?): Builder {
-            this.shell = shell
+        fun executablePath(shell: String?): Builder {
+            this.executablePath = shell
             return this
         }
 
@@ -107,7 +107,7 @@ open class ShellTermSession private constructor(shellPath: String, cwd: String,
         fun create(context: Context): ShellTermSession {
             val cwd = this.cwd ?: NeoTermPath.HOME_PATH
 
-            var shell = this.shell ?:
+            var shell = this.executablePath ?:
                     if (systemShell)
                         "/system/bin/sh"
                     else
@@ -119,7 +119,7 @@ open class ShellTermSession private constructor(shellPath: String, cwd: String,
             }
 
             val args = this.args ?: mutableListOf(shell)
-            val env = transformEnvironment(this.env) ?: buildEnvironment(cwd, systemShell, shell)
+            val env = transformEnvironment(this.env) ?: buildEnvironment(cwd, systemShell)
             val callback = changeCallback ?: TermSessionCallback()
             return ShellTermSession(shell, cwd, args.toTypedArray(), env, callback)
         }
@@ -135,12 +135,10 @@ open class ShellTermSession private constructor(shellPath: String, cwd: String,
         }
 
 
-        private fun buildEnvironment(cwd: String?, systemShell: Boolean, executablePath: String): Array<String> {
-            var cwd = cwd
+        private fun buildEnvironment(cwd: String?, systemShell: Boolean): Array<String> {
+            val cwd = cwd ?: NeoTermPath.HOME_PATH
             File(NeoTermPath.HOME_PATH).mkdirs()
 
-            if (cwd == null) cwd = NeoTermPath.HOME_PATH
-
             val termEnv = "TERM=xterm-256color"
             val homeEnv = "HOME=" + NeoTermPath.HOME_PATH
             val androidRootEnv = "ANDROID_ROOT=" + System.getenv("ANDROID_ROOT")
diff --git a/app/src/main/java/io/neoterm/terminal/client/TermCompleteListener.kt b/app/src/main/java/io/neoterm/frontend/client/TermCompleteListener.kt
similarity index 89%
rename from app/src/main/java/io/neoterm/terminal/client/TermCompleteListener.kt
rename to app/src/main/java/io/neoterm/frontend/client/TermCompleteListener.kt
index 93699fd..10b6975 100644
--- a/app/src/main/java/io/neoterm/terminal/client/TermCompleteListener.kt
+++ b/app/src/main/java/io/neoterm/frontend/client/TermCompleteListener.kt
@@ -1,11 +1,11 @@
-package io.neoterm.terminal.client
+package io.neoterm.frontend.client
 
 import android.util.Log
 import android.view.KeyEvent
-import io.neoterm.customize.completion.AutoCompleteManager
-import io.neoterm.customize.completion.CompleteCandidate
-import io.neoterm.view.AutoCompletePopupWindow
-import io.neoterm.view.OnAutoCompleteListener
+import io.neoterm.frontend.completion.AutoCompleteManager
+import io.neoterm.frontend.completion.CompleteCandidate
+import io.neoterm.frontend.completion.AutoCompletePopupWindow
+import io.neoterm.frontend.completion.OnAutoCompleteListener
 import io.neoterm.view.TerminalView
 import java.util.*
 
diff --git a/app/src/main/java/io/neoterm/terminal/client/TermDataHolder.kt b/app/src/main/java/io/neoterm/frontend/client/TermDataHolder.kt
similarity index 93%
rename from app/src/main/java/io/neoterm/terminal/client/TermDataHolder.kt
rename to app/src/main/java/io/neoterm/frontend/client/TermDataHolder.kt
index 74c67e3..9f03650 100644
--- a/app/src/main/java/io/neoterm/terminal/client/TermDataHolder.kt
+++ b/app/src/main/java/io/neoterm/frontend/client/TermDataHolder.kt
@@ -1,8 +1,8 @@
-package io.neoterm.terminal.client
+package io.neoterm.frontend.client
 
 import io.neoterm.backend.TerminalSession
 import io.neoterm.view.ExtraKeysView
-import io.neoterm.view.OnAutoCompleteListener
+import io.neoterm.frontend.completion.OnAutoCompleteListener
 import io.neoterm.view.TerminalView
 
 /**
diff --git a/app/src/main/java/io/neoterm/terminal/client/TermSessionCallback.kt b/app/src/main/java/io/neoterm/frontend/client/TermSessionCallback.kt
similarity index 98%
rename from app/src/main/java/io/neoterm/terminal/client/TermSessionCallback.kt
rename to app/src/main/java/io/neoterm/frontend/client/TermSessionCallback.kt
index 5c675b4..c0ec1da 100644
--- a/app/src/main/java/io/neoterm/terminal/client/TermSessionCallback.kt
+++ b/app/src/main/java/io/neoterm/frontend/client/TermSessionCallback.kt
@@ -1,4 +1,4 @@
-package io.neoterm.terminal.client
+package io.neoterm.frontend.client
 
 import android.content.ClipData
 import android.content.ClipboardManager
diff --git a/app/src/main/java/io/neoterm/terminal/client/TermUiPresenter.kt b/app/src/main/java/io/neoterm/frontend/client/TermUiPresenter.kt
similarity index 85%
rename from app/src/main/java/io/neoterm/terminal/client/TermUiPresenter.kt
rename to app/src/main/java/io/neoterm/frontend/client/TermUiPresenter.kt
index ba2acec..234cf9a 100644
--- a/app/src/main/java/io/neoterm/terminal/client/TermUiPresenter.kt
+++ b/app/src/main/java/io/neoterm/frontend/client/TermUiPresenter.kt
@@ -1,4 +1,4 @@
-package io.neoterm.terminal.client
+package io.neoterm.frontend.client
 
 /**
  * @author kiva
diff --git a/app/src/main/java/io/neoterm/terminal/client/TermViewClient.kt b/app/src/main/java/io/neoterm/frontend/client/TermViewClient.kt
similarity index 99%
rename from app/src/main/java/io/neoterm/terminal/client/TermViewClient.kt
rename to app/src/main/java/io/neoterm/frontend/client/TermViewClient.kt
index 7b67c2f..764014e 100644
--- a/app/src/main/java/io/neoterm/terminal/client/TermViewClient.kt
+++ b/app/src/main/java/io/neoterm/frontend/client/TermViewClient.kt
@@ -1,4 +1,4 @@
-package io.neoterm.terminal.client
+package io.neoterm.frontend.client
 
 import android.content.Context
 import android.media.AudioManager
diff --git a/app/src/main/java/io/neoterm/customize/completion/AutoCompleteManager.kt b/app/src/main/java/io/neoterm/frontend/completion/AutoCompleteManager.kt
similarity index 92%
rename from app/src/main/java/io/neoterm/customize/completion/AutoCompleteManager.kt
rename to app/src/main/java/io/neoterm/frontend/completion/AutoCompleteManager.kt
index 792c909..ab404fa 100644
--- a/app/src/main/java/io/neoterm/customize/completion/AutoCompleteManager.kt
+++ b/app/src/main/java/io/neoterm/frontend/completion/AutoCompleteManager.kt
@@ -1,4 +1,4 @@
-package io.neoterm.customize.completion
+package io.neoterm.frontend.completion
 
 /**
  * @author kiva
@@ -10,7 +10,7 @@ object AutoCompleteManager {
         val programs = arrayOf("ls", "clean", "exit", "apt", "neoterm-normalize-binary", "less", "ln", "lsof")
         val desc = arrayOf("List files and directories",
                 "Clear screen",
-                "Exit current shell",
+                "Exit current executablePath",
                 "Installing, Updating, Upgrading packages",
                 "Fix program error caused by linux shebang",
                 "View files",
diff --git a/app/src/main/java/io/neoterm/view/AutoCompletePopupWindow.kt b/app/src/main/java/io/neoterm/frontend/completion/AutoCompletePopupWindow.kt
similarity index 98%
rename from app/src/main/java/io/neoterm/view/AutoCompletePopupWindow.kt
rename to app/src/main/java/io/neoterm/frontend/completion/AutoCompletePopupWindow.kt
index 4d420ab..98dc21d 100644
--- a/app/src/main/java/io/neoterm/view/AutoCompletePopupWindow.kt
+++ b/app/src/main/java/io/neoterm/frontend/completion/AutoCompletePopupWindow.kt
@@ -1,4 +1,4 @@
-package io.neoterm.view
+package io.neoterm.frontend.completion
 
 import android.content.Context
 import android.view.Gravity
@@ -12,7 +12,7 @@ import android.widget.TextView
 import io.neoterm.R
 import io.neoterm.backend.TerminalColors
 import io.neoterm.customize.color.ColorSchemeManager
-import io.neoterm.customize.completion.CompleteCandidate
+import io.neoterm.view.TerminalView
 
 /**
  * @author kiva
diff --git a/app/src/main/java/io/neoterm/customize/completion/CompleteCandidate.kt b/app/src/main/java/io/neoterm/frontend/completion/CompleteCandidate.kt
similarity index 79%
rename from app/src/main/java/io/neoterm/customize/completion/CompleteCandidate.kt
rename to app/src/main/java/io/neoterm/frontend/completion/CompleteCandidate.kt
index 38a83bf..7bec640 100644
--- a/app/src/main/java/io/neoterm/customize/completion/CompleteCandidate.kt
+++ b/app/src/main/java/io/neoterm/frontend/completion/CompleteCandidate.kt
@@ -1,4 +1,4 @@
-package io.neoterm.customize.completion
+package io.neoterm.frontend.completion
 
 /**
  * @author kiva
diff --git a/app/src/main/java/io/neoterm/view/OnAutoCompleteListener.java b/app/src/main/java/io/neoterm/frontend/completion/OnAutoCompleteListener.java
similarity index 82%
rename from app/src/main/java/io/neoterm/view/OnAutoCompleteListener.java
rename to app/src/main/java/io/neoterm/frontend/completion/OnAutoCompleteListener.java
index ab8d678..f585760 100755
--- a/app/src/main/java/io/neoterm/view/OnAutoCompleteListener.java
+++ b/app/src/main/java/io/neoterm/frontend/completion/OnAutoCompleteListener.java
@@ -1,4 +1,4 @@
-package io.neoterm.view;
+package io.neoterm.frontend.completion;
 
 /**
  * @author Kiva
diff --git a/app/src/main/java/io/neoterm/view/TerminalDialog.kt b/app/src/main/java/io/neoterm/frontend/floating/TerminalDialog.kt
similarity index 86%
rename from app/src/main/java/io/neoterm/view/TerminalDialog.kt
rename to app/src/main/java/io/neoterm/frontend/floating/TerminalDialog.kt
index 9397896..b58b1a7 100644
--- a/app/src/main/java/io/neoterm/view/TerminalDialog.kt
+++ b/app/src/main/java/io/neoterm/frontend/floating/TerminalDialog.kt
@@ -1,4 +1,4 @@
-package io.neoterm.view
+package io.neoterm.frontend.floating
 
 import android.annotation.SuppressLint
 import android.app.AlertDialog
@@ -8,7 +8,11 @@ import android.view.LayoutInflater
 import android.view.View
 import io.neoterm.R
 import io.neoterm.backend.TerminalSession
+import io.neoterm.frontend.tinyclient.BasicSessionCallback
+import io.neoterm.frontend.tinyclient.BasicViewClient
+import io.neoterm.frontend.ShellParameter
 import io.neoterm.utils.TerminalUtils
+import io.neoterm.view.TerminalView
 
 /**
  * @author kiva
@@ -53,7 +57,12 @@ class TerminalDialog(val context: Context) {
                 }
                 .create()
 
-        terminalSession = TerminalUtils.createShellSession(context, executablePath, arguments, null, null, null, terminalSessionCallback, false)
+        val parameter = ShellParameter()
+                .executablePath(executablePath)
+                .arguments(arguments)
+                .callback(terminalSessionCallback)
+                .systemShell(false)
+        terminalSession = TerminalUtils.createShellSession(context, parameter)
         terminalView.attachSession(terminalSession)
         return this
     }
diff --git a/app/src/main/java/io/neoterm/frontend/floating/TerminalWindowView.kt b/app/src/main/java/io/neoterm/frontend/floating/TerminalWindowView.kt
new file mode 100644
index 0000000..845b603
--- /dev/null
+++ b/app/src/main/java/io/neoterm/frontend/floating/TerminalWindowView.kt
@@ -0,0 +1,7 @@
+package io.neoterm.frontend.floating
+
+/**
+ * @author kiva
+ */
+class TerminalWindowView {
+}
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/view/BasicSessionCallback.kt b/app/src/main/java/io/neoterm/frontend/tinyclient/BasicSessionCallback.kt
similarity index 91%
rename from app/src/main/java/io/neoterm/view/BasicSessionCallback.kt
rename to app/src/main/java/io/neoterm/frontend/tinyclient/BasicSessionCallback.kt
index a834599..25beb98 100644
--- a/app/src/main/java/io/neoterm/view/BasicSessionCallback.kt
+++ b/app/src/main/java/io/neoterm/frontend/tinyclient/BasicSessionCallback.kt
@@ -1,6 +1,7 @@
-package io.neoterm.view
+package io.neoterm.frontend.tinyclient
 
 import io.neoterm.backend.TerminalSession
+import io.neoterm.view.TerminalView
 
 /**
  * @author kiva
diff --git a/app/src/main/java/io/neoterm/view/BasicViewClient.kt b/app/src/main/java/io/neoterm/frontend/tinyclient/BasicViewClient.kt
similarity index 93%
rename from app/src/main/java/io/neoterm/view/BasicViewClient.kt
rename to app/src/main/java/io/neoterm/frontend/tinyclient/BasicViewClient.kt
index 45ccbff..81c9fd3 100644
--- a/app/src/main/java/io/neoterm/view/BasicViewClient.kt
+++ b/app/src/main/java/io/neoterm/frontend/tinyclient/BasicViewClient.kt
@@ -1,10 +1,12 @@
-package io.neoterm.view
+package io.neoterm.frontend.tinyclient
 
 import android.content.Context
 import android.view.KeyEvent
 import android.view.MotionEvent
 import android.view.inputmethod.InputMethodManager
 import io.neoterm.backend.TerminalSession
+import io.neoterm.view.TerminalView
+import io.neoterm.view.TerminalViewClient
 
 /**
  * @author kiva
diff --git a/app/src/main/java/io/neoterm/services/NeoTermService.kt b/app/src/main/java/io/neoterm/services/NeoTermService.kt
index 7afa37a..0ca432d 100644
--- a/app/src/main/java/io/neoterm/services/NeoTermService.kt
+++ b/app/src/main/java/io/neoterm/services/NeoTermService.kt
@@ -15,6 +15,7 @@ import android.support.v4.content.WakefulBroadcastReceiver
 import io.neoterm.R
 import io.neoterm.backend.EmulatorDebug
 import io.neoterm.backend.TerminalSession
+import io.neoterm.frontend.ShellParameter
 import io.neoterm.ui.term.NeoTermActivity
 import io.neoterm.utils.TerminalUtils
 import java.util.*
@@ -76,11 +77,8 @@ class NeoTermService : Service() {
     val sessions: List<TerminalSession>
         get() = mTerminalSessions
 
-    fun createTermSession(executablePath: String?, arguments: Array<String>?,
-                          cwd: String?, initialCommand: String?,
-                          env: Array<Pair<String, String>>?, sessionCallback:
-                          TerminalSession.SessionChangedCallback?, systemShell: Boolean): TerminalSession {
-        val session = TerminalUtils.createShellSession(this, executablePath, arguments, cwd, initialCommand, env, sessionCallback, systemShell)
+    fun createTermSession(parameter: ShellParameter): TerminalSession {
+        val session = TerminalUtils.createShellSession(this, parameter)
         mTerminalSessions.add(session)
         updateNotification()
         return session
diff --git a/app/src/main/java/io/neoterm/ui/customization/CustomizationActivity.kt b/app/src/main/java/io/neoterm/ui/customization/CustomizationActivity.kt
index 66261ff..a3ee811 100644
--- a/app/src/main/java/io/neoterm/ui/customization/CustomizationActivity.kt
+++ b/app/src/main/java/io/neoterm/ui/customization/CustomizationActivity.kt
@@ -16,11 +16,12 @@ import io.neoterm.backend.TerminalSession
 import io.neoterm.customize.color.ColorSchemeManager
 import io.neoterm.preference.NeoTermPath
 import io.neoterm.customize.font.FontManager
+import io.neoterm.frontend.ShellParameter
 import io.neoterm.utils.FileUtils
 import io.neoterm.utils.MediaUtils
 import io.neoterm.utils.TerminalUtils
-import io.neoterm.view.BasicSessionCallback
-import io.neoterm.view.BasicViewClient
+import io.neoterm.frontend.tinyclient.BasicSessionCallback
+import io.neoterm.frontend.tinyclient.BasicViewClient
 import io.neoterm.view.ExtraKeysView
 import io.neoterm.view.TerminalView
 import java.io.File
@@ -56,8 +57,14 @@ class CustomizationActivity : AppCompatActivity() {
         viewClient = BasicViewClient(terminalView)
         sessionCallback = BasicSessionCallback(terminalView)
         TerminalUtils.setupTerminalView(terminalView, viewClient)
-        session = TerminalUtils.createShellSession(this, "${NeoTermPath.USR_PATH}/bin/applets/echo",
-                arrayOf("echo", "Hello NeoTerm."), null, null, null, sessionCallback, false)
+
+        val parameter = ShellParameter()
+                .executablePath("${NeoTermPath.USR_PATH}/bin/applets/echo")
+                .arguments(arrayOf("echo", "Hello NeoTerm."))
+                .callback(sessionCallback)
+                .systemShell(false)
+
+        session = TerminalUtils.createShellSession(this, parameter)
         terminalView.attachSession(session)
 
         findViewById(R.id.custom_install_font_button).setOnClickListener {
diff --git a/app/src/main/java/io/neoterm/ui/floating/FloatingNeoTerm.kt b/app/src/main/java/io/neoterm/ui/floating/FloatingNeoTerm.kt
deleted file mode 100644
index d9df1e0..0000000
--- a/app/src/main/java/io/neoterm/ui/floating/FloatingNeoTerm.kt
+++ /dev/null
@@ -1,6 +0,0 @@
-package io.neoterm.ui.floating
-
-/**
- * @author kiva
- */
-class FloatingNeoTerm
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/ui/pm/PackageManagerActivity.kt b/app/src/main/java/io/neoterm/ui/pm/PackageManagerActivity.kt
index ae927f3..5a34c63 100644
--- a/app/src/main/java/io/neoterm/ui/pm/PackageManagerActivity.kt
+++ b/app/src/main/java/io/neoterm/ui/pm/PackageManagerActivity.kt
@@ -29,11 +29,8 @@ import io.neoterm.preference.NeoPreference
 import io.neoterm.preference.NeoTermPath
 import io.neoterm.ui.pm.adapter.PackageAdapter
 import io.neoterm.ui.pm.model.PackageModel
-import io.neoterm.utils.FileUtils
 import io.neoterm.utils.PackageUtils
-import io.neoterm.view.TerminalDialog
-import java.io.File
-import java.net.URL
+import io.neoterm.frontend.floating.TerminalDialog
 
 /**
  * @author kiva
diff --git a/app/src/main/java/io/neoterm/ui/settings/UISettingsActivity.kt b/app/src/main/java/io/neoterm/ui/settings/UISettingsActivity.kt
index dcbcfd1..b1affe6 100644
--- a/app/src/main/java/io/neoterm/ui/settings/UISettingsActivity.kt
+++ b/app/src/main/java/io/neoterm/ui/settings/UISettingsActivity.kt
@@ -4,12 +4,11 @@ import android.app.AlertDialog
 import android.os.Bundle
 import android.support.v7.app.AppCompatPreferenceActivity
 import android.view.MenuItem
-import android.widget.Toast
 import io.neoterm.R
 import io.neoterm.backend.TerminalSession
 import io.neoterm.preference.NeoPreference
 import io.neoterm.preference.NeoTermPath
-import io.neoterm.view.TerminalDialog
+import io.neoterm.frontend.floating.TerminalDialog
 
 /**
  * @author kiva
diff --git a/app/src/main/java/io/neoterm/ui/setup/SetupActivity.kt b/app/src/main/java/io/neoterm/ui/setup/SetupActivity.kt
index bd5472a..62dc775 100644
--- a/app/src/main/java/io/neoterm/ui/setup/SetupActivity.kt
+++ b/app/src/main/java/io/neoterm/ui/setup/SetupActivity.kt
@@ -21,8 +21,7 @@ import io.neoterm.customize.setup.BaseFileInstaller
 import io.neoterm.preference.NeoPreference
 import io.neoterm.preference.NeoTermPath
 import io.neoterm.utils.PackageUtils
-import io.neoterm.utils.TerminalUtils
-import io.neoterm.view.TerminalDialog
+import io.neoterm.frontend.floating.TerminalDialog
 import java.util.*
 
 
@@ -112,7 +111,7 @@ class SetupActivity : AppCompatActivity() {
     }
 
     private fun executeAptUpdate() {
-        TerminalUtils.executeApt(this, "update", { exitStatus, dialog ->
+        PackageUtils.executeApt(this, "update", { exitStatus, dialog ->
             if (exitStatus == 0) {
                 dialog.dismiss()
                 aptUpdated = true
@@ -124,7 +123,7 @@ class SetupActivity : AppCompatActivity() {
     }
 
     private fun executeAptUpgrade() {
-        TerminalUtils.executeApt(this, "upgrade", { exitStatus, dialog ->
+        PackageUtils.executeApt(this, "upgrade", { exitStatus, dialog ->
             if (exitStatus == 0) {
                 dialog.dismiss()
             } else {
diff --git a/app/src/main/java/io/neoterm/ui/term/NeoTermActivity.kt b/app/src/main/java/io/neoterm/ui/term/NeoTermActivity.kt
index 3a3273c..35ba429 100644
--- a/app/src/main/java/io/neoterm/ui/term/NeoTermActivity.kt
+++ b/app/src/main/java/io/neoterm/ui/term/NeoTermActivity.kt
@@ -26,6 +26,7 @@ import io.neoterm.customize.color.ColorSchemeManager
 import io.neoterm.customize.eks.EksKeysManager
 import io.neoterm.customize.font.FontManager
 import io.neoterm.customize.setup.BaseFileInstaller
+import io.neoterm.frontend.ShellParameter
 import io.neoterm.preference.NeoPermission
 import io.neoterm.preference.NeoPreference
 import io.neoterm.services.NeoTermService
@@ -33,10 +34,10 @@ import io.neoterm.ui.bonus.BonusActivity
 import io.neoterm.ui.pm.PackageManagerActivity
 import io.neoterm.ui.settings.SettingActivity
 import io.neoterm.ui.setup.SetupActivity
-import io.neoterm.terminal.client.TermSessionCallback
+import io.neoterm.frontend.client.TermSessionCallback
 import io.neoterm.ui.term.tab.TermTab
 import io.neoterm.ui.term.tab.TermTabDecorator
-import io.neoterm.terminal.client.TermViewClient
+import io.neoterm.frontend.client.TermViewClient
 import io.neoterm.ui.term.tab.event.TabCloseEvent
 import io.neoterm.ui.term.tab.event.TitleChangedEvent
 import io.neoterm.ui.term.tab.event.ToggleFullScreenEvent
@@ -403,8 +404,11 @@ class NeoTermActivity : AppCompatActivity(), ServiceConnection, SharedPreference
     private fun addNewSession(sessionName: String?, systemShell: Boolean, animation: Animation) {
         val sessionCallback = TermSessionCallback()
         val viewClient = TermViewClient(this)
-        val session = termService!!.createTermSession(null, null,
-                null, null, null, sessionCallback, systemShell)
+
+        val parameter = ShellParameter()
+                .callback(sessionCallback)
+                .systemShell(systemShell)
+        val session = termService!!.createTermSession(parameter)
 
         if (sessionName != null) {
             session.mSessionName = sessionName
diff --git a/app/src/main/java/io/neoterm/ui/term/NeoTermRemoteInterface.kt b/app/src/main/java/io/neoterm/ui/term/NeoTermRemoteInterface.kt
index 9b3f92e..549cba6 100644
--- a/app/src/main/java/io/neoterm/ui/term/NeoTermRemoteInterface.kt
+++ b/app/src/main/java/io/neoterm/ui/term/NeoTermRemoteInterface.kt
@@ -14,9 +14,10 @@ import android.widget.Toast
 import io.neoterm.R
 import io.neoterm.customize.script.UserScript
 import io.neoterm.customize.script.UserScriptManager
+import io.neoterm.frontend.ShellParameter
 import io.neoterm.preference.NeoPreference
 import io.neoterm.services.NeoTermService
-import io.neoterm.terminal.client.TermSessionCallback
+import io.neoterm.frontend.client.TermSessionCallback
 import io.neoterm.utils.TerminalUtils
 import java.io.File
 
@@ -68,9 +69,12 @@ class NeoTermRemoteInterface : AppCompatActivity(), ServiceConnection {
     }
 
     private fun openTerm(initialCommand: String?) {
-        val session = termService!!.createTermSession(null,
-                null, null, initialCommand,
-                null, TermSessionCallback(), false)
+        // TODO: check whether system executablePath we should use
+        val parameter = ShellParameter()
+                .initialCommand(initialCommand)
+                .callback(TermSessionCallback())
+                .systemShell(false)
+        val session = termService!!.createTermSession(parameter)
 
         // Set current session to our new one
         // In order to switch to it when entering NeoTermActivity
diff --git a/app/src/main/java/io/neoterm/ui/term/tab/TermTab.kt b/app/src/main/java/io/neoterm/ui/term/tab/TermTab.kt
index e33e7a1..5847597 100644
--- a/app/src/main/java/io/neoterm/ui/term/tab/TermTab.kt
+++ b/app/src/main/java/io/neoterm/ui/term/tab/TermTab.kt
@@ -7,8 +7,8 @@ import de.mrapp.android.tabswitcher.Tab
 import io.neoterm.R
 import io.neoterm.customize.color.ColorSchemeManager
 import io.neoterm.preference.NeoPreference
-import io.neoterm.terminal.client.TermDataHolder
-import io.neoterm.terminal.client.TermUiPresenter
+import io.neoterm.frontend.client.TermDataHolder
+import io.neoterm.frontend.client.TermUiPresenter
 import io.neoterm.ui.term.tab.event.TabCloseEvent
 import io.neoterm.ui.term.tab.event.TitleChangedEvent
 import io.neoterm.ui.term.tab.event.ToggleFullScreenEvent
diff --git a/app/src/main/java/io/neoterm/ui/term/tab/TermTabDecorator.kt b/app/src/main/java/io/neoterm/ui/term/tab/TermTabDecorator.kt
index bd50712..6d6d8b1 100644
--- a/app/src/main/java/io/neoterm/ui/term/tab/TermTabDecorator.kt
+++ b/app/src/main/java/io/neoterm/ui/term/tab/TermTabDecorator.kt
@@ -12,11 +12,11 @@ import io.neoterm.BuildConfig
 import io.neoterm.R
 import io.neoterm.customize.color.ColorSchemeManager
 import io.neoterm.preference.NeoPreference
-import io.neoterm.terminal.client.TermCompleteListener
+import io.neoterm.frontend.client.TermCompleteListener
 import io.neoterm.ui.term.NeoTermActivity
 import io.neoterm.utils.TerminalUtils
 import io.neoterm.view.ExtraKeysView
-import io.neoterm.view.OnAutoCompleteListener
+import io.neoterm.frontend.completion.OnAutoCompleteListener
 import io.neoterm.view.TerminalView
 
 /**
diff --git a/app/src/main/java/io/neoterm/utils/PackageUtils.kt b/app/src/main/java/io/neoterm/utils/PackageUtils.kt
index 37e3a27..1861c39 100644
--- a/app/src/main/java/io/neoterm/utils/PackageUtils.kt
+++ b/app/src/main/java/io/neoterm/utils/PackageUtils.kt
@@ -1,8 +1,11 @@
 package io.neoterm.utils
 
+import android.content.Context
 import io.neoterm.R
+import io.neoterm.backend.TerminalSession
 import io.neoterm.preference.NeoPreference
 import io.neoterm.preference.NeoTermPath
+import io.neoterm.frontend.floating.TerminalDialog
 import java.io.File
 
 /**
@@ -23,4 +26,17 @@ object PackageUtils {
                 .append("\n")
                 .toString()
     }
+
+    fun executeApt(context: Context, subCommand: String, callback: (Int, TerminalDialog) -> Unit) {
+        TerminalDialog(context)
+                .onFinish(object : TerminalDialog.SessionFinishedCallback {
+                    override fun onSessionFinished(dialog: TerminalDialog, finishedSession: TerminalSession?) {
+                        val exit = finishedSession?.exitStatus ?: 1
+                        callback(exit, dialog)
+                    }
+                })
+                .imeEnabled(true)
+                .execute(NeoTermPath.APT_BIN_PATH, arrayOf("apt", subCommand))
+                .show("apt $subCommand")
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/utils/ShakeUtils.kt b/app/src/main/java/io/neoterm/utils/ShakeUtils.kt
deleted file mode 100644
index fbee5e2..0000000
--- a/app/src/main/java/io/neoterm/utils/ShakeUtils.kt
+++ /dev/null
@@ -1,52 +0,0 @@
-package io.neoterm.utils
-
-import android.content.Context
-import android.hardware.Sensor
-import android.hardware.SensorEvent
-import android.hardware.SensorEventListener
-import android.hardware.SensorManager
-
-class ShakeUtils(context: Context) : SensorEventListener {
-    companion object {
-        private val SHAKE_SENSITIVITY = 14
-    }
-
-    private val mSensorManager: SensorManager = context.getSystemService(Context.SENSOR_SERVICE) as SensorManager
-    private var mOnShakeListener: OnShakeListener? = null
-
-    fun setOnShakeListener(onShakeListener: OnShakeListener) {
-        mOnShakeListener = onShakeListener
-    }
-
-    fun onResume() {
-        mSensorManager.registerListener(this,
-                mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
-                SensorManager.SENSOR_DELAY_NORMAL)
-    }
-
-    fun onPause() {
-        mSensorManager.unregisterListener(this)
-    }
-
-    override fun onAccuracyChanged(sensor: Sensor, accuracy: Int) {
-
-    }
-
-    override fun onSensorChanged(event: SensorEvent) {
-        val sensorType = event.sensor.type
-        //values[0]:X, values[1]：Y, values[2]：Z
-        val values = event.values
-        if (sensorType == Sensor.TYPE_ACCELEROMETER) {
-            //这里可以调节摇一摇的灵敏度
-            if (Math.abs(values[0]) > SHAKE_SENSITIVITY || Math.abs(values[1]) > SHAKE_SENSITIVITY || Math.abs(values[2]) > SHAKE_SENSITIVITY) {
-                if (mOnShakeListener != null) {
-                    mOnShakeListener!!.onShake()
-                }
-            }
-        }
-    }
-
-    interface OnShakeListener {
-        fun onShake()
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/utils/TerminalUtils.kt b/app/src/main/java/io/neoterm/utils/TerminalUtils.kt
index 49bb490..bfea20d 100644
--- a/app/src/main/java/io/neoterm/utils/TerminalUtils.kt
+++ b/app/src/main/java/io/neoterm/utils/TerminalUtils.kt
@@ -4,11 +4,10 @@ import android.content.Context
 import io.neoterm.R
 import io.neoterm.backend.TerminalSession
 import io.neoterm.customize.font.FontManager
+import io.neoterm.frontend.ShellParameter
+import io.neoterm.frontend.ShellTermSession
 import io.neoterm.preference.NeoPreference
-import io.neoterm.preference.NeoTermPath
-import io.neoterm.terminal.ShellTermSession
 import io.neoterm.view.ExtraKeysView
-import io.neoterm.view.TerminalDialog
 import io.neoterm.view.TerminalView
 import io.neoterm.view.TerminalViewClient
 
@@ -31,20 +30,17 @@ object TerminalUtils {
     fun setupTerminalSession(session: TerminalSession?) {
     }
 
-    fun createShellSession(context: Context, executablePath: String?, arguments: Array<String>?,
-                           cwd: String?, initialCommand: String?, env: Array<Pair<String, String>>?,
-                           sessionCallback: TerminalSession.SessionChangedCallback?,
-                           systemShell: Boolean): TerminalSession {
-        val initCommand = initialCommand ?:
+    fun createShellSession(context: Context, parameter: ShellParameter): TerminalSession {
+        val initCommand = parameter.initialCommand ?:
                 NeoPreference.loadString(R.string.key_general_initial_command, "")
 
         val session = ShellTermSession.Builder()
-                .shell(executablePath)
-                .currentWorkingDirectory(cwd)
-                .callback(sessionCallback)
-                .systemShell(systemShell)
-                .envArray(env)
-                .argArray(arguments)
+                .executablePath(parameter.executablePath)
+                .currentWorkingDirectory(parameter.cwd)
+                .callback(parameter.sessionCallback)
+                .systemShell(parameter.systemShell)
+                .envArray(parameter.env)
+                .argArray(parameter.arguments)
                 .create(context)
         setupTerminalSession(session)
         session.initialCommand = initCommand
@@ -70,17 +66,4 @@ object TerminalUtils {
         builder.append('"')
         return builder.toString()
     }
-
-    fun executeApt(context: Context, subCommand: String, callback: (Int, TerminalDialog) -> Unit) {
-        TerminalDialog(context)
-                .onFinish(object : TerminalDialog.SessionFinishedCallback {
-                    override fun onSessionFinished(dialog: TerminalDialog, finishedSession: TerminalSession?) {
-                        val exit = finishedSession?.exitStatus ?: 1
-                        callback(exit, dialog)
-                    }
-                })
-                .imeEnabled(true)
-                .execute(NeoTermPath.APT_BIN_PATH, arrayOf("apt", subCommand))
-                .show("apt $subCommand")
-    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/view/ExtraKeysView.kt b/app/src/main/java/io/neoterm/view/ExtraKeysView.kt
index 0318eec..9a031fe 100755
--- a/app/src/main/java/io/neoterm/view/ExtraKeysView.kt
+++ b/app/src/main/java/io/neoterm/view/ExtraKeysView.kt
@@ -6,7 +6,6 @@ import android.graphics.Typeface
 import android.util.AttributeSet
 import android.view.Gravity
 import android.view.HapticFeedbackConstants
-import android.view.View
 import android.view.ViewGroup
 import android.widget.Button
 import android.widget.HorizontalScrollView
@@ -16,27 +15,13 @@ import android.widget.ToggleButton
 import java.io.File
 import java.util.ArrayList
 
-import io.neoterm.customize.eks.EksConfig
 import io.neoterm.customize.eks.EksConfigParser
-import io.neoterm.customize.font.FontManager
 import io.neoterm.preference.NeoTermPath
 import io.neoterm.utils.FileUtils
 import io.neoterm.view.eks.ControlButton
 import io.neoterm.view.eks.ExtraButton
 import io.neoterm.view.eks.StatedControlButton
 
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_ARROW_DOWN
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_ARROW_LEFT
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_ARROW_RIGHT
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_ARROW_UP
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_CTRL
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_END
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_ESC
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_HOME
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_PAGE_DOWN
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_PAGE_UP
-import io.neoterm.view.eks.ExtraButton.Companion.KEY_TAB
-
 /**
  * A view showing extra keys (such as Escape, Ctrl, Alt) not normally available on an Android soft
  * keyboard.
diff --git a/app/src/main/java/io/neoterm/view/TerminalView.java b/app/src/main/java/io/neoterm/view/TerminalView.java
index 4e9d3d7..c5c9401 100755
--- a/app/src/main/java/io/neoterm/view/TerminalView.java
+++ b/app/src/main/java/io/neoterm/view/TerminalView.java
@@ -35,6 +35,7 @@ import io.neoterm.backend.KeyHandler;
 import io.neoterm.backend.TerminalBuffer;
 import io.neoterm.backend.TerminalEmulator;
 import io.neoterm.backend.TerminalSession;
+import io.neoterm.frontend.completion.OnAutoCompleteListener;
 
 /**
  * View displaying and interacting with a {@link TerminalSession}.
diff --git a/app/src/main/java/io/neoterm/view/eks/ControlButton.kt b/app/src/main/java/io/neoterm/view/eks/ControlButton.kt
index 6dbcaf3..5da221f 100644
--- a/app/src/main/java/io/neoterm/view/eks/ControlButton.kt
+++ b/app/src/main/java/io/neoterm/view/eks/ControlButton.kt
@@ -2,8 +2,6 @@ package io.neoterm.view.eks
 
 import android.view.View
 
-import io.neoterm.view.ExtraKeysView
-
 /**
  * @author kiva
  */
diff --git a/app/src/main/java/io/neoterm/view/eks/TextButton.kt b/app/src/main/java/io/neoterm/view/eks/TextButton.kt
index e32cc73..718b462 100644
--- a/app/src/main/java/io/neoterm/view/eks/TextButton.kt
+++ b/app/src/main/java/io/neoterm/view/eks/TextButton.kt
@@ -2,8 +2,6 @@ package io.neoterm.view.eks
 
 import android.view.View
 
-import io.neoterm.view.ExtraKeysView
-
 /**
  * @author kiva
  */
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index fe2848c..21dfd71 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -39,7 +39,7 @@
     <string name="ui_settings">界面设置</string>
     <string name="shell_not_found">Shell %s 未找到, 请先安装.</string>
     <string name="installer_message">正在安装</string>
-    <string name="installer_install_zsh_required">将要安装 oh-my-zsh 并将您的登录 shell 切换到 zsh</string>
+    <string name="installer_install_zsh_required">将要安装 oh-my-zsh 并将您的登录 executablePath 切换到 zsh</string>
     <string name="fullscreen_mode_changed">全屏模式已改变，请重启 NeoTerm</string>
     <string name="permission_denied">NeoTerm 无法取得必需的权限，正在退出</string>
     <string name="error">还有这种操作？</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 44239c6..85ec47b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -51,7 +51,7 @@
     <string name="crash_stack_trace">Stack Trace</string>
 
     <string name="installer_message">Installing</string>
-    <string name="installer_install_zsh_required">We are about to install oh-my-zsh and switch your login shell to zsh</string>
+    <string name="installer_install_zsh_required">We are about to install oh-my-zsh and switch your login executablePath to zsh</string>
 
     <string name="pref_general_bell">Bell</string>
     <string name="pref_general_bell_desc">Bell when receiving \'\\a\'</string>
@@ -60,7 +60,7 @@
     <string name="pref_general_backspace_map_to_esc">BackSpace Mapped to Esc</string>
     <string name="pref_general_backspace_map_to_esc_desc">Send esc when backspace is pressed</string>
     <string name="pref_general_shell" translatable="false">Shell</string>
-    <string name="pref_general_shell_desc">Which shell should we use when login</string>
+    <string name="pref_general_shell_desc">Which executablePath should we use when login</string>
     <string name="pref_general_program_selection">Program Selection</string>
     <string name="pref_general_program_selection_desc">When both Neo Term and your Android OS have a program, which one should we choose?</string>
     <string name="pref_general_initial_command">Initial Command</string>
diff --git a/gradlew.bat b/gradlew.bat
index aec9973..2a53aa8 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -5,7 +5,7 @@
 @rem
 @rem ##########################################################################
 
-@rem Set local scope for the variables with windows NT shell
+@rem Set local scope for the variables with windows NT executablePath
 if "%OS%"=="Windows_NT" setlocal
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
@@ -75,7 +75,7 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
 
 :end
-@rem End local scope for the variables with windows NT shell
+@rem End local scope for the variables with windows NT executablePath
 if "%ERRORLEVEL%"=="0" goto mainEnd
 
 :fail