Added Clear Formatting button on Android Viewer

Change-Id: If576aaf3e5095e660219fed9f5e11971c9a73469
Signed-off-by: Mert Tumer <merttumer7@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/59293
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
diff --git a/android/source/res/drawable/ic_format_clear_black_24dp.xml b/android/source/res/drawable/ic_format_clear_black_24dp.xml
new file mode 100644
index 0000000..4c903c7
--- /dev/null
+++ b/android/source/res/drawable/ic_format_clear_black_24dp.xml
@@ -0,0 +1,9 @@
<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M3.27,5L2,6.27l6.97,6.97L6.5,19h3l1.57,-3.66L16.73,21 18,19.73 3.55,5.27 3.27,5zM6,5v0.18L8.82,8h2.4l-0.72,1.68 2.1,2.1L14.21,8H20V5H6z"/>
</vector>
diff --git a/android/source/res/layout/toolbar_bottom.xml b/android/source/res/layout/toolbar_bottom.xml
index ca84284..bfe5f74 100644
--- a/android/source/res/layout/toolbar_bottom.xml
+++ b/android/source/res/layout/toolbar_bottom.xml
@@ -107,6 +107,16 @@
                                        android:paddingTop="12dp"
                                        android:src="@drawable/ic_format_strikethrough" />

                                    <ImageButton
                                        android:id="@+id/button_clearformatting"
                                        android:layout_width="0dp"
                                        android:layout_height="wrap_content"
                                        android:layout_weight="0.25"
                                        android:background="@drawable/image_button_background"
                                        android:paddingBottom="12dp"
                                        android:paddingTop="12dp"
                                        app:srcCompat="@drawable/ic_format_clear_black_24dp" />

                                </LinearLayout>

                                <Spinner
diff --git a/android/source/src/java/org/libreoffice/FormattingController.java b/android/source/src/java/org/libreoffice/FormattingController.java
index 0f49a57..7fe538c 100644
--- a/android/source/src/java/org/libreoffice/FormattingController.java
+++ b/android/source/src/java/org/libreoffice/FormattingController.java
@@ -53,6 +53,7 @@ class FormattingController implements View.OnClickListener {
        mContext.findViewById(R.id.button_italic).setOnClickListener(this);
        mContext.findViewById(R.id.button_strikethrough).setOnClickListener(this);
        mContext.findViewById(R.id.button_underlined).setOnClickListener(this);
        mContext.findViewById(R.id.button_clearformatting).setOnClickListener(this);

        mContext.findViewById(R.id.button_align_left).setOnClickListener(this);
        mContext.findViewById(R.id.button_align_center).setOnClickListener(this);
@@ -102,8 +103,11 @@ class FormattingController implements View.OnClickListener {
            case R.id.button_strikethrough:
                LOKitShell.sendEvent(new LOEvent(LOEvent.UNO_COMMAND, ".uno:Strikeout"));
                break;
            case R.id.button_clearformatting:
                LOKitShell.sendEvent(new LOEvent(LOEvent.UNO_COMMAND, ".uno:ResetAttributes"));
                break;
            case R.id.button_underlined:
                LOKitShell.sendEvent(new LOEvent(LOEvent.UNO_COMMAND, ".uno:Underline"));
                LOKitShell.sendEvent(new LOEvent(LOEvent.UNO_COMMAND, ".uno:UnderlineDouble"));
                break;
            case R.id.button_align_left:
                LOKitShell.sendEvent(new LOEvent(LOEvent.UNO_COMMAND, ".uno:LeftPara"));