Refactor to add SeekBarDialog

Change-Id: Id8e08a1d5ec5efb2baf96a2634111619fcb9fd4e

1 files changed, 179 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/SeekBarDialog.java b/java/src/com/android/inputmethod/latin/SeekBarDialog.java
new file mode 100644
index 000000000..e576c0984
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/SeekBarDialog.java
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2012 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.view.LayoutInflater;
+import android.view.View;
+import android.widget.SeekBar;
+import android.widget.SeekBar.OnSeekBarChangeListener;
+import android.widget.TextView;
+
+public final class SeekBarDialog implements DialogInterface.OnClickListener,
+        OnSeekBarChangeListener {
+    public interface Listener {
+        public void onPositiveButtonClick(final SeekBarDialog dialog);
+        public void onNegativeButtonClick(final SeekBarDialog dialog);
+        public void onProgressChanged(final SeekBarDialog dialog);
+        public void onStartTrackingTouch(final SeekBarDialog dialog);
+        public void onStopTrackingTouch(final SeekBarDialog dialog);
+    }
+
+    public static class Adapter implements Listener {
+        @Override
+        public void onPositiveButtonClick(final SeekBarDialog dialog) {}
+        @Override
+        public void onNegativeButtonClick(final SeekBarDialog dialog) { dialog.dismiss(); }
+        @Override
+        public void onProgressChanged(final SeekBarDialog dialog) {}
+        @Override
+        public void onStartTrackingTouch(final SeekBarDialog dialog) {}
+        @Override
+        public void onStopTrackingTouch(final SeekBarDialog dialog) {}
+    }
+
+    private static final Listener EMPTY_ADAPTER = new Adapter();
+
+    private final AlertDialog mDialog;
+    private final Listener mListener;
+    private final TextView mValueView;
+    private final SeekBar mSeekBar;
+    private final String mValueFormat;
+
+    private int mValue;
+
+    private SeekBarDialog(final Builder builder) {
+        final AlertDialog.Builder dialogBuilder = builder.mDialogBuilder;
+        dialogBuilder.setView(builder.mView);
+        dialogBuilder.setPositiveButton(android.R.string.ok, this);
+        dialogBuilder.setNegativeButton(android.R.string.cancel, this);
+        mDialog = dialogBuilder.create();
+        mListener = (builder.mListener == null) ? EMPTY_ADAPTER : builder.mListener;
+        mValueView = (TextView)builder.mView.findViewById(R.id.seek_bar_dialog_value);
+        mSeekBar = (SeekBar)builder.mView.findViewById(R.id.seek_bar_dialog_bar);
+        mSeekBar.setMax(builder.mMaxValue);
+        mSeekBar.setOnSeekBarChangeListener(this);
+        if (builder.mValueFormatResId == 0) {
+            mValueFormat = "%s";
+        } else {
+            mValueFormat = mDialog.getContext().getString(builder.mValueFormatResId);
+        }
+    }
+
+    public void setValue(final int value, final boolean fromUser) {
+        mValue = value;
+        mValueView.setText(String.format(mValueFormat, value));
+        if (!fromUser) {
+            mSeekBar.setProgress(value);
+        }
+    }
+
+    public int getValue() {
+        return mValue;
+    }
+
+    public CharSequence getValueText() {
+        return mValueView.getText();
+    }
+
+    public void show() {
+        mDialog.show();
+    }
+
+    public void dismiss() {
+        mDialog.dismiss();
+    }
+
+    @Override
+    public void onClick(final DialogInterface dialog, int which) {
+        if (which == DialogInterface.BUTTON_POSITIVE) {
+            mListener.onPositiveButtonClick(this);
+            return;
+        }
+        if (which == DialogInterface.BUTTON_NEGATIVE) {
+            mListener.onNegativeButtonClick(this);
+            return;
+        }
+    }
+
+    @Override
+    public void onProgressChanged(final SeekBar seekBar, final int progress,
+            final boolean fromUser) {
+        setValue(progress, fromUser);
+        if (fromUser) {
+            mListener.onProgressChanged(this);
+        }
+    }
+
+    @Override
+    public void onStartTrackingTouch(final SeekBar seekBar) {
+        mListener.onStartTrackingTouch(this);
+    }
+
+    @Override
+    public void onStopTrackingTouch(final SeekBar seekBar) {
+        mListener.onStopTrackingTouch(this);
+    }
+
+    public static final class Builder {
+        final AlertDialog.Builder mDialogBuilder;
+        final View mView;
+
+        int mMaxValue;
+        int mValueFormatResId;
+        int mValue;
+        Listener mListener;
+
+        public Builder(final Context context) {
+            mDialogBuilder = new AlertDialog.Builder(context);
+            mView = LayoutInflater.from(context).inflate(R.layout.seek_bar_dialog, null);
+        }
+
+        public Builder setTitle(final int resId) {
+            mDialogBuilder.setTitle(resId);
+            return this;
+        }
+
+        public Builder setMaxValue(final int max) {
+            mMaxValue = max;
+            return this;
+        }
+
+        public Builder setValueFromat(final int resId) {
+            mValueFormatResId = resId;
+            return this;
+        }
+
+        public Builder setValue(final int value) {
+            mValue = value;
+            return this;
+        }
+
+        public Builder setListener(final Listener listener) {
+            mListener = listener;
+            return this;
+        }
+
+        public SeekBarDialog create() {
+            final SeekBarDialog dialog = new SeekBarDialog(this);
+            dialog.setValue(mValue, false /* fromUser */);
+            return dialog;
+        }
+    }
+}