From 4fca061d12af6fc0e93fb8eff01915a45c3b408d Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Wed, 5 Jan 2022 17:15:08 +0100
Subject: [PATCH] adding an initial implementation of the keyboard

---
 app/src/main/AndroidManifest.xml              |   2 +-
 .../keyboard/helpers/SimpleKeyboardIME.kt     |   7 -
 .../keyboard/services/SimpleKeyboardIME.kt    |  70 +++++++
 app/src/main/res/layout/activity_main.xml     |   8 +
 app/src/main/res/layout/keyboard_preview.xml  |   7 +
 app/src/main/res/layout/keyboard_view.xml     |   7 +
 app/src/main/res/xml/keys_layout.xml          | 172 ++++++++++++++++++
 app/src/main/res/xml/method.xml               |   7 +-
 8 files changed, 267 insertions(+), 13 deletions(-)
 delete mode 100644 app/src/main/kotlin/com/simplemobiletools/keyboard/helpers/SimpleKeyboardIME.kt
 create mode 100644 app/src/main/kotlin/com/simplemobiletools/keyboard/services/SimpleKeyboardIME.kt
 create mode 100644 app/src/main/res/layout/keyboard_preview.xml
 create mode 100644 app/src/main/res/layout/keyboard_view.xml
 create mode 100644 app/src/main/res/xml/keys_layout.xml

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 13eaca8..2677270 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -24,7 +24,7 @@
         <activity android:name=".activities.MainActivity" />
 
         <service
-            android:name=".helpers.SimpleKeyboardIME"
+            android:name=".services.SimpleKeyboardIME"
             android:label="@string/app_name"
             android:permission="android.permission.BIND_INPUT_METHOD">
             <meta-data
diff --git a/app/src/main/kotlin/com/simplemobiletools/keyboard/helpers/SimpleKeyboardIME.kt b/app/src/main/kotlin/com/simplemobiletools/keyboard/helpers/SimpleKeyboardIME.kt
deleted file mode 100644
index 83105c4..0000000
--- a/app/src/main/kotlin/com/simplemobiletools/keyboard/helpers/SimpleKeyboardIME.kt
+++ /dev/null
@@ -1,7 +0,0 @@
-package com.simplemobiletools.keyboard.helpers
-
-import android.inputmethodservice.InputMethodService
-
-public class SimpleKeyboardIME : InputMethodService() {
-
-}
diff --git a/app/src/main/kotlin/com/simplemobiletools/keyboard/services/SimpleKeyboardIME.kt b/app/src/main/kotlin/com/simplemobiletools/keyboard/services/SimpleKeyboardIME.kt
new file mode 100644
index 0000000..11eb126
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/keyboard/services/SimpleKeyboardIME.kt
@@ -0,0 +1,70 @@
+package com.simplemobiletools.keyboard.services
+
+import android.inputmethodservice.InputMethodService
+import android.inputmethodservice.Keyboard
+import android.inputmethodservice.KeyboardView
+import android.text.TextUtils
+import android.view.KeyEvent
+import android.view.View
+import com.simplemobiletools.keyboard.R
+
+// based on https://www.androidauthority.com/lets-build-custom-keyboard-android-832362/
+class SimpleKeyboardIME : InputMethodService(), KeyboardView.OnKeyboardActionListener {
+    private var keyboard: Keyboard? = null
+    private var keyboardView: KeyboardView? = null
+    private var caps = false
+
+    override fun onCreateInputView(): View {
+        keyboardView = layoutInflater.inflate(R.layout.keyboard_view, null) as KeyboardView
+        keyboard = Keyboard(this, R.xml.keys_layout)
+        keyboardView!!.keyboard = keyboard
+        keyboardView!!.setOnKeyboardActionListener(this)
+        return keyboardView!!
+    }
+
+    override fun onPress(primaryCode: Int) {}
+
+    override fun onRelease(primaryCode: Int) {}
+
+    override fun onKey(primaryCode: Int, keyCodes: IntArray?) {
+        val inputConnection = currentInputConnection
+        if (inputConnection != null) {
+            when (primaryCode) {
+                Keyboard.KEYCODE_DELETE -> {
+                    val selectedText = inputConnection.getSelectedText(0)
+                    if (TextUtils.isEmpty(selectedText)) {
+                        inputConnection.deleteSurroundingText(1, 0)
+                    } else {
+                        inputConnection.commitText("", 1)
+                    }
+                    caps = !caps
+                    keyboard!!.isShifted = caps
+                    keyboardView!!.invalidateAllKeys()
+                }
+                Keyboard.KEYCODE_SHIFT -> {
+                    caps = !caps
+                    keyboard!!.isShifted = caps
+                    keyboardView!!.invalidateAllKeys()
+                }
+                Keyboard.KEYCODE_DONE -> inputConnection.sendKeyEvent(KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER))
+                else -> {
+                    var code = primaryCode.toChar()
+                    if (Character.isLetter(code) && caps) {
+                        code = Character.toUpperCase(code)
+                    }
+                    inputConnection.commitText(code.toString(), 1)
+                }
+            }
+        }
+    }
+
+    override fun onText(text: CharSequence?) {}
+
+    override fun swipeLeft() {}
+
+    override fun swipeRight() {}
+
+    override fun swipeDown() {}
+
+    override fun swipeUp() {}
+}
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 2956f31..bd64030 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -17,4 +17,12 @@
             android:text="@string/change_keyboard" />
 
     </RelativeLayout>
+
+    <com.simplemobiletools.commons.views.MyEditText
+        android:id="@+id/text_edittext"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/change_keyboard_holder"
+        android:layout_margin="@dimen/activity_margin" />
+
 </RelativeLayout>
diff --git a/app/src/main/res/layout/keyboard_preview.xml b/app/src/main/res/layout/keyboard_preview.xml
new file mode 100644
index 0000000..69c3510
--- /dev/null
+++ b/app/src/main/res/layout/keyboard_preview.xml
@@ -0,0 +1,7 @@
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/color_primary_dark"
+    android:textAlignment="center"
+    android:textColor="@color/colorPrimary"
+    android:textSize="30sp" />
diff --git a/app/src/main/res/layout/keyboard_view.xml b/app/src/main/res/layout/keyboard_view.xml
new file mode 100644
index 0000000..e604c87
--- /dev/null
+++ b/app/src/main/res/layout/keyboard_view.xml
@@ -0,0 +1,7 @@
+<android.inputmethodservice.KeyboardView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/keyboard_view"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_alignParentBottom="true"
+    android:background="@color/colorPrimary"
+    android:keyPreviewLayout="@layout/keyboard_preview" />
diff --git a/app/src/main/res/xml/keys_layout.xml b/app/src/main/res/xml/keys_layout.xml
new file mode 100644
index 0000000..36fd274
--- /dev/null
+++ b/app/src/main/res/xml/keys_layout.xml
@@ -0,0 +1,172 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
+    android:horizontalGap="3px"
+    android:keyWidth="10%p"
+    android:keyHeight="60dp"
+    android:keyBackground="@color/color_primary_dark"
+    android:keyTextColor="@color/color_accent"
+    android:verticalGap="3px">
+    <Row>
+        <Key
+            android:codes="49"
+            android:keyEdgeFlags="left"
+            android:keyLabel="1" />
+        <Key
+            android:codes="50"
+            android:keyLabel="2" />
+        <Key
+            android:codes="51"
+            android:keyLabel="3" />
+        <Key
+            android:codes="52"
+            android:keyLabel="4" />
+        <Key
+            android:codes="53"
+            android:keyLabel="5" />
+        <Key
+            android:codes="54"
+            android:keyLabel="6" />
+        <Key
+            android:codes="55"
+            android:keyLabel="7" />
+        <Key
+            android:codes="56"
+            android:keyLabel="8" />
+        <Key
+            android:codes="57"
+            android:keyLabel="9" />
+        <Key
+            android:codes="48"
+            android:keyLabel="0" />
+        <Key
+            android:codes="-5"
+            android:isRepeatable="true"
+            android:keyWidth="20%p"
+            android:keyEdgeFlags="right"
+            android:keyLabel="DEL" />
+    </Row>
+    <Row>
+        <Key
+            android:codes="113"
+            android:keyEdgeFlags="left"
+            android:keyLabel="q" />
+        <Key
+            android:codes="119"
+            android:keyLabel="w" />
+        <Key
+            android:codes="101"
+            android:keyLabel="e" />
+        <Key
+            android:codes="114"
+            android:keyLabel="r" />
+        <Key
+            android:codes="116"
+            android:keyLabel="t" />
+        <Key
+            android:codes="121"
+            android:keyLabel="y" />
+        <Key
+            android:codes="117"
+            android:keyLabel="u" />
+        <Key
+            android:codes="105"
+            android:keyLabel="i" />
+        <Key
+            android:codes="111"
+            android:keyLabel="o" />
+        <Key
+            android:codes="112"
+            android:keyEdgeFlags="right"
+            android:keyLabel="p" />
+    </Row>
+    <Row>
+        <Key
+            android:codes="97"
+            android:keyEdgeFlags="left"
+            android:keyLabel="a" />
+        <Key
+            android:codes="115"
+            android:keyLabel="s" />
+        <Key
+            android:codes="100"
+            android:keyLabel="d" />
+        <Key
+            android:codes="102"
+            android:keyLabel="f" />
+        <Key
+            android:codes="103"
+            android:keyLabel="g" />
+        <Key
+            android:codes="104"
+            android:keyLabel="h" />
+        <Key
+            android:codes="106"
+            android:keyLabel="j" />
+        <Key
+            android:codes="107"
+            android:keyLabel="k" />
+        <Key
+            android:codes="108"
+            android:keyLabel="l" />
+        <Key
+            android:codes="35,64"
+            android:keyEdgeFlags="right"
+            android:keyLabel="\# \@" />
+    </Row>
+    <Row>
+        <Key
+            android:codes="-1"
+            android:keyEdgeFlags="left"
+            android:keyLabel="CAPS" />
+        <Key
+            android:codes="122"
+            android:keyLabel="z" />
+        <Key
+            android:codes="120"
+            android:keyLabel="x" />
+        <Key
+            android:codes="99"
+            android:keyLabel="c" />
+        <Key
+            android:codes="118"
+            android:keyLabel="v" />
+        <Key
+            android:codes="98"
+            android:keyLabel="b" />
+        <Key
+            android:codes="110"
+            android:keyLabel="n" />
+        <Key
+            android:codes="109"
+            android:keyLabel="m" />
+        <Key
+            android:codes="46"
+            android:keyLabel="." />
+        <Key
+            android:codes="63,33,58"
+            android:keyEdgeFlags="right"
+            android:keyLabel="\? ! :" />
+    </Row>
+    <Row android:rowEdgeFlags="bottom">
+        <Key
+            android:codes="44"
+            android:keyWidth="10%p"
+            android:keyEdgeFlags="left"
+            android:keyLabel="," />
+        <Key
+            android:codes="47"
+            android:keyWidth="10%p"
+            android:keyLabel="/" />
+        <Key
+            android:codes="32"
+            android:isRepeatable="true"
+            android:keyWidth="60%p"
+            android:keyLabel="SPACE" />
+        <Key
+            android:codes="-4"
+            android:keyWidth="20%p"
+            android:keyBackground="@color/colorPrimary"
+            android:keyEdgeFlags="right"
+            android:keyLabel="DONE" />
+    </Row>
+</Keyboard>
diff --git a/app/src/main/res/xml/method.xml b/app/src/main/res/xml/method.xml
index ce43852..3acad80 100644
--- a/app/src/main/res/xml/method.xml
+++ b/app/src/main/res/xml/method.xml
@@ -1,11 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <input-method xmlns:android="http://schemas.android.com/apk/res/android"
     android:icon="@mipmap/ic_launcher"
-    android:settingsActivity="com.simplemobiletools.keyboard.activities.SettingsActivity"
-    android:supportsSwitchingToNextInputMethod="true">
+    android:settingsActivity="com.simplemobiletools.keyboard.activities.SettingsActivity">
 
-    <subtype
-        android:imeSubtypeMode="Keyboard"
-        android:label="english" />
+    <subtype android:imeSubtypeMode="Keyboard" />
 
 </input-method>