[PB6] Encapsulate the buttons into a view

Handling buttons directly in the preference causes large
problems of code readability and interface.  It's better to
have a class to manage the buttons and their animations
separately. This is feature-equivalent, and mostly
delegates stuff for now.

Bug: 7600384
Change-Id: Ia8da0ec68ffac84fc1d65e1760539a87a73fa776

1 files changed, 69 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/dictionarypack/ButtonSwitcher.java b/java/src/com/android/inputmethod/dictionarypack/ButtonSwitcher.java
new file mode 100644
index 000000000..a062298f2
--- /dev/null
+++ b/java/src/com/android/inputmethod/dictionarypack/ButtonSwitcher.java
@@ -0,0 +1,69 @@
+/**
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy
+ * of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.android.inputmethod.dictionarypack;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.Button;
+import android.widget.FrameLayout;
+
+import com.android.inputmethod.latin.R;
+
+/**
+ * A view that handles buttons inside it according to a status.
+ */
+public class ButtonSwitcher extends FrameLayout {
+    // Animation directions
+    public static final int ANIMATION_IN = 1;
+    public static final int ANIMATION_OUT = 2;
+
+    public ButtonSwitcher(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public ButtonSwitcher(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public void setText(final CharSequence text) {
+        ((Button)findViewById(R.id.dict_install_button)).setText(text);
+    }
+
+    public void setInternalButtonVisiblility(final int visibility) {
+        findViewById(R.id.dict_install_button).setVisibility(visibility);
+    }
+
+    public void setInternalOnClickListener(final OnClickListener listener) {
+        findViewById(R.id.dict_install_button).setOnClickListener(listener);
+    }
+
+    public void animateButton(final int direction) {
+        final View button = findViewById(R.id.dict_install_button);
+        final float outerX = getWidth();
+        final float innerX = button.getX() - button.getTranslationX();
+        if (View.INVISIBLE == button.getVisibility()) {
+            button.setTranslationX(outerX - innerX);
+            button.setVisibility(View.VISIBLE);
+        }
+        if (ANIMATION_IN == direction) {
+            button.animate().translationX(0);
+        } else {
+            button.animate().translationX(outerX - innerX);
+        }
+    }
+}