1 files changed, 123 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/latin/SeekBarDialogPreference.java b/java/src/com/android/inputmethod/latin/SeekBarDialogPreference.java
new file mode 100644
index 000000000..56a6a9b01
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/SeekBarDialogPreference.java
@@ -0,0 +1,123 @@
+/*
+ * 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.latin;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.res.TypedArray;
+import android.preference.DialogPreference;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.SeekBar;
+import android.widget.TextView;
+
+public final class SeekBarDialogPreference extends DialogPreference
+        implements SeekBar.OnSeekBarChangeListener {
+    public interface ValueProxy {
+        public int readValue(final String key);
+        public int readDefaultValue(final String key);
+        public void writeValue(final int value, final String key);
+        public void feedbackValue(final int value);
+    }
+
+    private final int mValueFormatResId;
+    private final int mMaxValue;
+
+    private TextView mValueView;
+    private SeekBar mSeekBar;
+
+    private ValueProxy mValueProxy;
+
+    public SeekBarDialogPreference(final Context context, final AttributeSet attrs) {
+        super(context, attrs);
+        final TypedArray a = context.obtainStyledAttributes(
+                attrs, R.styleable.SeekBarDialogPreference, 0, 0);
+        mValueFormatResId = a.getResourceId(R.styleable.SeekBarDialogPreference_valueFormatText, 0);
+        mMaxValue = a.getInt(R.styleable.SeekBarDialogPreference_maxValue, 0);
+        a.recycle();
+        setDialogLayoutResource(R.layout.seek_bar_dialog);
+    }
+
+    public void setInterface(final ValueProxy proxy) {
+        mValueProxy = proxy;
+        setSummary(getValueText(proxy.readValue(getKey())));
+    }
+
+    private String getValueText(final int value) {
+        if (mValueFormatResId == 0) {
+            return Integer.toString(value);
+        } else {
+            return getContext().getString(mValueFormatResId, value);
+        }
+    }
+
+    @Override
+    protected View onCreateDialogView() {
+        final View view = super.onCreateDialogView();
+        mSeekBar = (SeekBar)view.findViewById(R.id.seek_bar_dialog_bar);
+        mSeekBar.setMax(mMaxValue);
+        mSeekBar.setOnSeekBarChangeListener(this);
+        mValueView = (TextView)view.findViewById(R.id.seek_bar_dialog_value);
+        return view;
+    }
+
+    private void setValue(final int value, final boolean fromUser) {
+        mValueView.setText(getValueText(value));
+        if (!fromUser) {
+            mSeekBar.setProgress(value);
+        }
+    }
+
+    @Override
+    protected void onBindDialogView(final View view) {
+        setValue(mValueProxy.readValue(getKey()), false /* fromUser */);
+    }
+
+    @Override
+    protected void onPrepareDialogBuilder(final AlertDialog.Builder builder) {
+        builder.setPositiveButton(android.R.string.ok, this)
+            .setNegativeButton(android.R.string.cancel, this)
+            .setNeutralButton(R.string.button_default, this);
+    }
+
+    @Override
+    public void onClick(final DialogInterface dialog, final int which) {
+        super.onClick(dialog, which);
+        if (which == DialogInterface.BUTTON_NEUTRAL) {
+            setValue(mValueProxy.readDefaultValue(getKey()), false /* fromUser */);
+        }
+        if (which != DialogInterface.BUTTON_NEGATIVE) {
+            setSummary(mValueView.getText());
+            mValueProxy.writeValue(mSeekBar.getProgress(), getKey());
+        }
+    }
+
+    @Override
+    public void onProgressChanged(final SeekBar seekBar, final int progress,
+            final boolean fromUser) {
+        setValue(progress, fromUser);
+    }
+
+    @Override
+    public void onStartTrackingTouch(final SeekBar seekBar) {}
+
+    @Override
+    public void onStopTrackingTouch(final SeekBar seekBar) {
+        mValueProxy.feedbackValue(seekBar.getProgress());
+    }
+}