Initial, unpolished version of DatasetPicker.

Bug: 31001899 Bug: 34637800 Test: manual verification Change-Id: If0d1c61ffbac0b166de1fbd2184f68ca72b2cd08
2017-01-27 08:35:08 -08:00
parent 6ee80f3a65
commit cd55f670f3
1 changed files with 139 additions and 0 deletions
--- a/services/autofill/java/com/android/server/autofill/DatasetPicker.java
+++ b/services/autofill/java/com/android/server/autofill/DatasetPicker.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2017 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.server.autofill;
+
+import static com.android.server.autofill.Helper.DEBUG;
+
+import android.app.Activity;
+import android.content.Context;
+import android.util.Slog;
+import android.view.View;
+import android.view.WindowManager;
+import android.view.autofill.Dataset;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import java.util.List;
+
+/**
+ * View responsible for drawing the {@link Dataset} options that can be used to auto-fill an
+ * {@link Activity}.
+ */
+final class DatasetPicker extends LinearLayout {
+
+    private static final String TAG = "DatasetPicker";
+
+    // TODO(b/33197203): use / calculate proper values instead of hardcoding them
+    private static final LayoutParams NAME_PARAMS = new LayoutParams(400,
+            WindowManager.LayoutParams.WRAP_CONTENT);
+    private static final LayoutParams DROP_DOWN_PARAMS = new LayoutParams(100,
+            WindowManager.LayoutParams.WRAP_CONTENT);
+
+    private final Line[] mLines;
+
+    private boolean mExpanded;
+    private final Listener mListener;
+
+    public DatasetPicker(Context context, Listener listener, List<Dataset> datasets) {
+        super(context);
+
+        mListener = listener;
+
+        // TODO(b/33197203): use XML layout
+        setOrientation(LinearLayout.VERTICAL);
+
+        final int size = datasets.size();
+        mLines = new Line[size];
+
+        for (int i = 0; i < size; i++) {
+            final boolean first = i == 0;
+            final Line line = new Line(context, datasets.get(i), first);
+            mLines[i] = line;
+            if (first) {
+                addView(line);
+            }
+        }
+        mExpanded = false;
+    }
+
+    private void togleDropDown() {
+        if (mExpanded) {
+            hideDropDown();
+            return;
+        }
+        for (int i = 1; i < mLines.length; i++) {
+            addView(mLines[i]);
+        }
+        mExpanded = true;
+    }
+
+    private void hideDropDown() {
+        if (!mExpanded) return;
+        // TODO(b/33197203): invert order to be less janky?
+        for (int i = 1; i < mLines.length; i++) {
+            removeView(mLines[i]);
+        }
+        mExpanded = false;
+    }
+
+    private class Line extends LinearLayout {
+        final TextView name;
+        final ImageView dropDown;
+
+        private Line(Context context, Dataset dataset, boolean first) {
+            super(context);
+
+            final View.OnClickListener l = new View.OnClickListener() {
+
+                @Override
+                public void onClick(View v) {
+                    if (DEBUG) Slog.d(TAG, "dataset picked: " + dataset.getName());
+                    mListener.onDatasetPicked(dataset);
+
+                }
+            };
+
+            // TODO(b/33197203): use XML layout
+            setOrientation(LinearLayout.HORIZONTAL);
+
+            name = new TextView(context);
+            name.setLayoutParams(NAME_PARAMS);
+            name.setText(dataset.getName());
+            name.setOnClickListener(l);
+
+            dropDown = new ImageView(context);
+            dropDown.setLayoutParams(DROP_DOWN_PARAMS);
+            // TODO(b/33197203): use proper icon
+            dropDown.setImageResource(com.android.internal.R.drawable.arrow_down_float);
+            dropDown.setOnClickListener((v) -> {
+                togleDropDown();
+            });
+
+            if (!first) {
+                dropDown.setVisibility(View.INVISIBLE);
+            }
+
+            addView(name);
+            addView(dropDown);
+        }
+    }
+
+    static interface Listener {
+        void onDatasetPicked(Dataset dataset);
+    }
+}