facade/ui/ViewInflater.java

/*
 * 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.googlecode.android_scripting.facade.ui;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Typeface;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.text.InputType;
import android.text.method.DigitsKeyListener;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewGroup.MarginLayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.RelativeLayout;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
import android.widget.TableLayout;
import android.widget.TextView;

import com.googlecode.android_scripting.Log;

import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.json.JSONArray;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

public class ViewInflater {
  private static XmlPullParserFactory mFactory;
  public static final String ANDROID = "http://schemas.android.com/apk/res/android";
  public static final int BASESEQ = 0x7f0f0000;
  private int mNextSeq = BASESEQ;
  private final Map<String, Integer> mIdList = new HashMap<String, Integer>();
  private final List<String> mErrors = new ArrayList<String>();
  private Context mContext;
  private DisplayMetrics mMetrics;
  private static final Map<String, Integer> mInputTypes = new HashMap<String, Integer>();
  public static final Map<String, String> mColorNames = new HashMap<String, String>();
  public static final Map<String, Integer> mRelative = new HashMap<String, Integer>();
  static {
    mColorNames.put("aliceblue", "#f0f8ff");
    mColorNames.put("antiquewhite", "#faebd7");
    mColorNames.put("aqua", "#00ffff");
    mColorNames.put("aquamarine", "#7fffd4");
    mColorNames.put("azure", "#f0ffff");
    mColorNames.put("beige", "#f5f5dc");
    mColorNames.put("bisque", "#ffe4c4");
    mColorNames.put("black", "#000000");
    mColorNames.put("blanchedalmond", "#ffebcd");
    mColorNames.put("blue", "#0000ff");
    mColorNames.put("blueviolet", "#8a2be2");
    mColorNames.put("brown", "#a52a2a");
    mColorNames.put("burlywood", "#deb887");
    mColorNames.put("cadetblue", "#5f9ea0");
    mColorNames.put("chartreuse", "#7fff00");
    mColorNames.put("chocolate", "#d2691e");
    mColorNames.put("coral", "#ff7f50");
    mColorNames.put("cornflowerblue", "#6495ed");
    mColorNames.put("cornsilk", "#fff8dc");
    mColorNames.put("crimson", "#dc143c");
    mColorNames.put("cyan", "#00ffff");
    mColorNames.put("darkblue", "#00008b");
    mColorNames.put("darkcyan", "#008b8b");
    mColorNames.put("darkgoldenrod", "#b8860b");
    mColorNames.put("darkgray", "#a9a9a9");
    mColorNames.put("darkgrey", "#a9a9a9");
    mColorNames.put("darkgreen", "#006400");
    mColorNames.put("darkkhaki", "#bdb76b");
    mColorNames.put("darkmagenta", "#8b008b");
    mColorNames.put("darkolivegreen", "#556b2f");
    mColorNames.put("darkorange", "#ff8c00");
    mColorNames.put("darkorchid", "#9932cc");
    mColorNames.put("darkred", "#8b0000");
    mColorNames.put("darksalmon", "#e9967a");
    mColorNames.put("darkseagreen", "#8fbc8f");
    mColorNames.put("darkslateblue", "#483d8b");
    mColorNames.put("darkslategray", "#2f4f4f");
    mColorNames.put("darkslategrey", "#2f4f4f");
    mColorNames.put("darkturquoise", "#00ced1");
    mColorNames.put("darkviolet", "#9400d3");
    mColorNames.put("deeppink", "#ff1493");
    mColorNames.put("deepskyblue", "#00bfff");
    mColorNames.put("dimgray", "#696969");
    mColorNames.put("dimgrey", "#696969");
    mColorNames.put("dodgerblue", "#1e90ff");
    mColorNames.put("firebrick", "#b22222");
    mColorNames.put("floralwhite", "#fffaf0");
    mColorNames.put("forestgreen", "#228b22");
    mColorNames.put("fuchsia", "#ff00ff");
    mColorNames.put("gainsboro", "#dcdcdc");
    mColorNames.put("ghostwhite", "#f8f8ff");
    mColorNames.put("gold", "#ffd700");
    mColorNames.put("goldenrod", "#daa520");
    mColorNames.put("gray", "#808080");
    mColorNames.put("grey", "#808080");
    mColorNames.put("green", "#008000");
    mColorNames.put("greenyellow", "#adff2f");
    mColorNames.put("honeydew", "#f0fff0");
    mColorNames.put("hotpink", "#ff69b4");
    mColorNames.put("indianred ", "#cd5c5c");
    mColorNames.put("indigo ", "#4b0082");
    mColorNames.put("ivory", "#fffff0");
    mColorNames.put("khaki", "#f0e68c");
    mColorNames.put("lavender", "#e6e6fa");
    mColorNames.put("lavenderblush", "#fff0f5");
    mColorNames.put("lawngreen", "#7cfc00");
    mColorNames.put("lemonchiffon", "#fffacd");
    mColorNames.put("lightblue", "#add8e6");
    mColorNames.put("lightcoral", "#f08080");
    mColorNames.put("lightcyan", "#e0ffff");
    mColorNames.put("lightgoldenrodyellow", "#fafad2");
    mColorNames.put("lightgray", "#d3d3d3");
    mColorNames.put("lightgrey", "#d3d3d3");
    mColorNames.put("lightgreen", "#90ee90");
    mColorNames.put("lightpink", "#ffb6c1");
    mColorNames.put("lightsalmon", "#ffa07a");
    mColorNames.put("lightseagreen", "#20b2aa");
    mColorNames.put("lightskyblue", "#87cefa");
    mColorNames.put("lightslategray", "#778899");
    mColorNames.put("lightslategrey", "#778899");
    mColorNames.put("lightsteelblue", "#b0c4de");
    mColorNames.put("lightyellow", "#ffffe0");
    mColorNames.put("lime", "#00ff00");
    mColorNames.put("limegreen", "#32cd32");
    mColorNames.put("linen", "#faf0e6");
    mColorNames.put("magenta", "#ff00ff");
    mColorNames.put("maroon", "#800000");
    mColorNames.put("mediumaquamarine", "#66cdaa");
    mColorNames.put("mediumblue", "#0000cd");
    mColorNames.put("mediumorchid", "#ba55d3");
    mColorNames.put("mediumpurple", "#9370d8");
    mColorNames.put("mediumseagreen", "#3cb371");
    mColorNames.put("mediumslateblue", "#7b68ee");
    mColorNames.put("mediumspringgreen", "#00fa9a");
    mColorNames.put("mediumturquoise", "#48d1cc");
    mColorNames.put("mediumvioletred", "#c71585");
    mColorNames.put("midnightblue", "#191970");
    mColorNames.put("mintcream", "#f5fffa");
    mColorNames.put("mistyrose", "#ffe4e1");
    mColorNames.put("moccasin", "#ffe4b5");
    mColorNames.put("navajowhite", "#ffdead");
    mColorNames.put("navy", "#000080");
    mColorNames.put("oldlace", "#fdf5e6");
    mColorNames.put("olive", "#808000");
    mColorNames.put("olivedrab", "#6b8e23");
    mColorNames.put("orange", "#ffa500");
    mColorNames.put("orangered", "#ff4500");
    mColorNames.put("orchid", "#da70d6");
    mColorNames.put("palegoldenrod", "#eee8aa");
    mColorNames.put("palegreen", "#98fb98");
    mColorNames.put("paleturquoise", "#afeeee");
    mColorNames.put("palevioletred", "#d87093");
    mColorNames.put("papayawhip", "#ffefd5");
    mColorNames.put("peachpuff", "#ffdab9");
    mColorNames.put("peru", "#cd853f");
    mColorNames.put("pink", "#ffc0cb");
    mColorNames.put("plum", "#dda0dd");
    mColorNames.put("powderblue", "#b0e0e6");
    mColorNames.put("purple", "#800080");
    mColorNames.put("red", "#ff0000");
    mColorNames.put("rosybrown", "#bc8f8f");
    mColorNames.put("royalblue", "#4169e1");
    mColorNames.put("saddlebrown", "#8b4513");
    mColorNames.put("salmon", "#fa8072");
    mColorNames.put("sandybrown", "#f4a460");
    mColorNames.put("seagreen", "#2e8b57");
    mColorNames.put("seashell", "#fff5ee");
    mColorNames.put("sienna", "#a0522d");
    mColorNames.put("silver", "#c0c0c0");
    mColorNames.put("skyblue", "#87ceeb");
    mColorNames.put("slateblue", "#6a5acd");
    mColorNames.put("slategray", "#708090");
    mColorNames.put("slategrey", "#708090");
    mColorNames.put("snow", "#fffafa");
    mColorNames.put("springgreen", "#00ff7f");
    mColorNames.put("steelblue", "#4682b4");
    mColorNames.put("tan", "#d2b48c");
    mColorNames.put("teal", "#008080");
    mColorNames.put("thistle", "#d8bfd8");
    mColorNames.put("tomato", "#ff6347");
    mColorNames.put("turquoise", "#40e0d0");
    mColorNames.put("violet", "#ee82ee");
    mColorNames.put("wheat", "#f5deb3");
    mColorNames.put("white", "#ffffff");
    mColorNames.put("whitesmoke", "#f5f5f5");
    mColorNames.put("yellow", "#ffff00");
    mColorNames.put("yellowgreen", "#9acd32");

    mRelative.put("above", RelativeLayout.ABOVE);
    mRelative.put("alignBaseline", RelativeLayout.ALIGN_BASELINE);
    mRelative.put("alignBottom", RelativeLayout.ALIGN_BOTTOM);
    mRelative.put("alignLeft", RelativeLayout.ALIGN_LEFT);
    mRelative.put("alignParentBottom", RelativeLayout.ALIGN_PARENT_BOTTOM);
    mRelative.put("alignParentLeft", RelativeLayout.ALIGN_PARENT_LEFT);
    mRelative.put("alignParentRight", RelativeLayout.ALIGN_PARENT_RIGHT);
    mRelative.put("alignParentTop", RelativeLayout.ALIGN_PARENT_TOP);
    mRelative.put("alignRight", RelativeLayout.ALIGN_PARENT_RIGHT);
    mRelative.put("alignTop", RelativeLayout.ALIGN_TOP);
    // mRelative.put("alignWithParentIfMissing",RelativeLayout.); // No idea what this translates
    // to.
    mRelative.put("below", RelativeLayout.BELOW);
    mRelative.put("centerHorizontal", RelativeLayout.CENTER_HORIZONTAL);
    mRelative.put("centerInParent", RelativeLayout.CENTER_IN_PARENT);
    mRelative.put("centerVertical", RelativeLayout.CENTER_VERTICAL);
    mRelative.put("toLeftOf", RelativeLayout.LEFT_OF);
    mRelative.put("toRightOf", RelativeLayout.RIGHT_OF);
  }

  public static XmlPullParserFactory getFactory() throws XmlPullParserException {
    if (mFactory == null) {
      mFactory = XmlPullParserFactory.newInstance();
      mFactory.setNamespaceAware(true);
    }
    return mFactory;
  }

  public static XmlPullParser getXml() throws XmlPullParserException {
    return getFactory().newPullParser();
  }

  public static XmlPullParser getXml(InputStream is) throws XmlPullParserException {
    XmlPullParser xml = getXml();
    xml.setInput(is, null);
    return xml;
  }

  public static XmlPullParser getXml(Reader ir) throws XmlPullParserException {
    XmlPullParser xml = getXml();
    xml.setInput(ir);
    return xml;
  }

  public View inflate(Activity context, XmlPullParser xml) throws XmlPullParserException,
      IOException, IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    int event;
    mContext = context;
    mErrors.clear();
    mMetrics = new DisplayMetrics();
    context.getWindowManager().getDefaultDisplay().getMetrics(mMetrics);
    do {
      event = xml.next();
      if (event == XmlPullParser.END_DOCUMENT) {
        return null;
      }
    } while (event != XmlPullParser.START_TAG);
    View view = inflateView(context, xml, null);
    return view;
  }

  private void addln(Object msg) {
    Log.d(msg.toString());
  }

  @SuppressWarnings("rawtypes")
  public void setClickListener(View v, android.view.View.OnClickListener listener,
      OnItemClickListener itemListener) {
    if (v.isClickable()) {

      if (v instanceof AdapterView) {
        try {
          ((AdapterView) v).setOnItemClickListener(itemListener);
        } catch (RuntimeException e) {
          // Ignore this, not all controls support OnItemClickListener
        }
      }
      try {
        v.setOnClickListener(listener);
      } catch (RuntimeException e) {
        // And not all controls support OnClickListener.
      }
    }
    if (v instanceof ViewGroup) {
      ViewGroup vg = (ViewGroup) v;
      for (int i = 0; i < vg.getChildCount(); i++) {
        setClickListener(vg.getChildAt(i), listener, itemListener);
      }
    }
  }

  private View inflateView(Context context, XmlPullParser xml, ViewGroup root)
      throws IllegalArgumentException, IllegalAccessException, InvocationTargetException,
      XmlPullParserException, IOException {
    View view = buildView(context, xml, root);
    if (view == null) {
      return view;
    }
    int event;
    while ((event = xml.next()) != XmlPullParser.END_DOCUMENT) {
      switch (event) {
      case XmlPullParser.START_TAG:
        if (view == null || view instanceof ViewGroup) {
          inflateView(context, xml, (ViewGroup) view);
        } else {
          skipTag(xml); // Not really a view, probably, skip it.
        }
        break;
      case XmlPullParser.END_TAG:
        return view;
      }
    }
    return view;
  }

  private void skipTag(XmlPullParser xml) throws XmlPullParserException, IOException {
    int depth = xml.getDepth();
    int event;
    while ((event = xml.next()) != XmlPullParser.END_DOCUMENT) {
      if (event == XmlPullParser.END_TAG && xml.getDepth() <= depth) {
        break;
      }
    }
  }

  private View buildView(Context context, XmlPullParser xml, ViewGroup root)
      throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    View view = viewClass(context, xml.getName());
    if (view != null) {
      getLayoutParams(view, root); // Make quite sure every view has a layout param.
      for (int i = 0; i < xml.getAttributeCount(); i++) {
        String ns = xml.getAttributeNamespace(i);
        String attr = xml.getAttributeName(i);
        if (ANDROID.equals(ns)) {
          setProperty(view, root, attr, xml.getAttributeValue(i));
        }
      }
      if (root != null) {
        root.addView(view);
      }
    }

    return view;
  }

  private int getLayoutValue(String value) {
    if (value == null) {
      return 0;
    }
    if (value.equals("match_parent")) {
      return LayoutParams.MATCH_PARENT;
    }
    if (value.equals("wrap_content")) {
      return LayoutParams.WRAP_CONTENT;
    }
    if (value.equals("fill_parent")) {
      return LayoutParams.MATCH_PARENT;
    }
    return (int) getFontSize(value);
  }

  private float getFontSize(String value) {
    int i;
    float size;
    String unit = "px";
    for (i = 0; i < value.length(); i++) {
      char c = value.charAt(i);
      if (!(Character.isDigit(c) || c == '.')) {
        break;
      }
    }
    size = Float.parseFloat(value.substring(0, i));
    if (i < value.length()) {
      unit = value.substring(i).trim();
    }
    if (unit.equals("px")) {
      return size;
    }
    if (unit.equals("sp")) {
      return mMetrics.scaledDensity * size;
    }
    if (unit.equals("dp") || unit.equals("dip")) {
      return mMetrics.density * size;
    }
    float inches = mMetrics.ydpi * size;
    if (unit.equals("in")) {
      return inches;
    }
    if (unit.equals("pt")) {
      return inches / 72;
    }
    if (unit.equals("mm")) {
      return (float) (inches / 2.54);
    }
    return 0;
  }

  private int calcId(String value) {
    if (value == null) {
      return 0;
    }
    if (value.startsWith("@+id/")) {
      return tryGetId(value.substring(5));
    }
    if (value.startsWith("@id/")) {
      return tryGetId(value.substring(4));
    }
    try {
      return Integer.parseInt(value);
    } catch (NumberFormatException e) {
      return 0;
    }
  }

  private int tryGetId(String value) {
    Integer id = mIdList.get(value);
    if (id == null) {
      id = new Integer(mNextSeq++);
      mIdList.put(value, id);
    }
    return id;
  }

  private LayoutParams getLayoutParams(View view, ViewGroup root) {
    LayoutParams result = view.getLayoutParams();
    if (result == null) {
      result = createLayoutParams(root);
      view.setLayoutParams(result);
    }
    return result;
  }

  private LayoutParams createLayoutParams(ViewGroup root) {
    LayoutParams result = null;
    if (root != null) {
      try {
        String lookfor = root.getClass().getName() + "$LayoutParams";
        addln(lookfor);
        Class<? extends LayoutParams> clazz = Class.forName(lookfor).asSubclass(LayoutParams.class);
        if (clazz != null) {
          Constructor<? extends LayoutParams> ct = clazz.getConstructor(int.class, int.class);
          result = ct.newInstance(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        }
      } catch (Exception e) {
        result = null;
      }
    }
    if (result == null) {
      result = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    }
    return result;
  }

  public void setProperty(View view, String attr, String value) {
    try {
      setProperty(view, (ViewGroup) view.getParent(), attr, value);
    } catch (Exception e) {
      mErrors.add(e.toString());
    }
  }

  private void setProperty(View view, ViewGroup root, String attr, String value)
      throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    addln(attr + ":" + value);
    if (attr.startsWith("layout_")) {
      setLayoutProperty(view, root, attr, value);
    } else if (attr.equals("id")) {
      view.setId(calcId(value));
    } else if (attr.equals("gravity")) {
      setInteger(view, attr, getInteger(Gravity.class, value));
    } else if (attr.equals("width") || attr.equals("height")) {
      setInteger(view, attr, (int) getFontSize(value));
    } else if (attr.equals("inputType")) {
      setInteger(view, attr, getInteger(InputType.class, value));
    } else if (attr.equals("background")) {
      setBackground(view, value);
    } else if (attr.equals("digits") && view instanceof TextView) {
      ((TextView) view).setKeyListener(DigitsKeyListener.getInstance(value));
    } else if (attr.startsWith("nextFocus")) {
      setInteger(view, attr + "Id", calcId(value));
    } else if (attr.equals("padding")) {
      int size = (int) getFontSize(value);
      view.setPadding(size, size, size, size);
    } else if (attr.equals("stretchColumns")) {
      setStretchColumns(view, value);
    } else if (attr.equals("textSize")) {
      setFloat(view, attr, getFontSize(value));
    } else if (attr.equals("textColor")) {
      setInteger(view, attr, getColor(value));
    } else if (attr.equals("textHighlightColor")) {
      setInteger(view, "HighlightColor", getColor(value));
    } else if (attr.equals("textColorHint")) {
      setInteger(view, "LinkTextColor", getColor(value));
    } else if (attr.equals("textStyle")) {
      TextView textview = (TextView) view;
      int style = getInteger(Typeface.class, value);
      if (style == 0) {
        textview.setTypeface(Typeface.DEFAULT);
      } else {
        textview.setTypeface(textview.getTypeface(), style);
      }
    } else if (attr.equals("typeface")) {
      TextView textview = (TextView) view;
      Typeface typeface = textview.getTypeface();
      int style = typeface == null ? 0 : typeface.getStyle();
      textview.setTypeface(Typeface.create(value, style));
    } else if (attr.equals("src")) {
      setImage(view, value);
    } else {
      setDynamicProperty(view, attr, value);
    }
  }

  private void setStretchColumns(View view, String value) {
    TableLayout table = (TableLayout) view;
    String[] values = value.split(",");
    for (String column : values) {
      table.setColumnStretchable(Integer.parseInt(column), true);
    }
  }

  private void setLayoutProperty(View view, ViewGroup root, String attr, String value) {
    LayoutParams layout = getLayoutParams(view, root);
    String layoutAttr = attr.substring(7);
    if (layoutAttr.equals("width")) {
      layout.width = getLayoutValue(value);
    } else if (layoutAttr.equals("height")) {
      layout.height = getLayoutValue(value);
    } else if (layoutAttr.equals("gravity")) {
      setIntegerField(layout, "gravity", getInteger(Gravity.class, value));
    } else {
      if (layoutAttr.startsWith("margin") && layout instanceof MarginLayoutParams) {
        int size = (int) getFontSize(value);
        MarginLayoutParams margins = (MarginLayoutParams) layout;
        if (layoutAttr.equals("marginBottom")) {
          margins.bottomMargin = size;
        } else if (layoutAttr.equals("marginTop")) {
          margins.topMargin = size;
        } else if (layoutAttr.equals("marginLeft")) {
          margins.leftMargin = size;
        } else if (layoutAttr.equals("marginRight")) {
          margins.rightMargin = size;
        }
      } else if (layout instanceof RelativeLayout.LayoutParams) {
        int anchor = calcId(value);
        if (anchor == 0) {
          anchor = getInteger(RelativeLayout.class, value);
        }
        int rule = mRelative.get(layoutAttr);
        ((RelativeLayout.LayoutParams) layout).addRule(rule, anchor);
      } else {
        setIntegerField(layout, layoutAttr, getInteger(layout.getClass(), value));
      }
    }
  }

  private void setBackground(View view, String value) {
    if (value.startsWith("#")) {
      view.setBackgroundColor(getColor(value));
    } else if (value.startsWith("@")) {
      setInteger(view, "backgroundResource", getInteger(view, value));
    } else {
      view.setBackground(getDrawable(value));
    }
  }

  private Drawable getDrawable(String value) {
    try {
      Uri uri = Uri.parse(value);
      if ("file".equals(uri.getScheme())) {
        BitmapDrawable bd = new BitmapDrawable(mContext.getResources(), uri.getPath());
        return bd;
      }
    } catch (Exception e) {
      mErrors.add("failed to load drawable " + value);
    }
    return null;
  }

  private void setImage(View view, String value) {
    if (value.startsWith("@")) {
      setInteger(view, "imageResource", getInteger(view, value));
    } else {
      try {
        Uri uri = Uri.parse(value);
        if ("file".equals(uri.getScheme())) {
          Bitmap bm = BitmapFactory.decodeFile(uri.getPath());
          Method method = view.getClass().getMethod("setImageBitmap", Bitmap.class);
          method.invoke(view, bm);
        } else {
          mErrors.add("Only 'file' currently supported for images");
        }
      } catch (Exception e) {
        mErrors.add("failed to set image " + value);
      }
    }
  }

  private void setIntegerField(Object target, String fieldName, int value) {
    try {
      Field f = target.getClass().getField(fieldName);
      f.setInt(target, value);
    } catch (Exception e) {
      mErrors.add("set field)" + fieldName + " failed. " + e.toString());
    }
  }

  /** Expand single digit color to 2 digits. */
  private int expandColor(String colorValue) {
    return Integer.parseInt(colorValue + colorValue, 16);
  }

  private int getColor(String value) {
    int a = 0xff, r = 0, g = 0, b = 0;
    if (value.startsWith("#")) {
      try {
        value = value.substring(1);
        if (value.length() == 4) {
          a = expandColor(value.substring(0, 1));
          value = value.substring(1);
        }
        if (value.length() == 3) {
          r = expandColor(value.substring(0, 1));
          g = expandColor(value.substring(1, 2));
          b = expandColor(value.substring(2, 3));
        } else {
          if (value.length() == 8) {
            a = Integer.parseInt(value.substring(0, 2), 16);
            value = value.substring(2);
          }
          if (value.length() == 6) {
            r = Integer.parseInt(value.substring(0, 2), 16);
            g = Integer.parseInt(value.substring(2, 4), 16);
            b = Integer.parseInt(value.substring(4, 6), 16);
          }
        }
        long result = (a << 24) | (r << 16) | (g << 8) | b;
        return (int) result;
      } catch (Exception e) {
      }
    } else if (mColorNames.containsKey(value.toLowerCase())) {
      return getColor(mColorNames.get(value.toLowerCase()));
    }
    mErrors.add("Unknown color " + value);
    return 0;
  }

  private int getInputType(String value) {
    int result = 0;
    Integer v = getInputTypes().get(value);
    if (v == null) {
      mErrors.add("Unkown input type " + value);
    } else {
      result = v;
    }
    return result;
  }

  private void setInteger(View view, String attr, int value) {
    String name = "set" + PCase(attr);
    Method m;
    try {
      if ((m = tryMethod(view, name, Context.class, int.class)) != null) {
        m.invoke(view, mContext, value);
      } else if ((m = tryMethod(view, name, int.class)) != null) {
        m.invoke(view, value);
      }
    } catch (Exception e) {
      addln(name + ":" + value + ":" + e.toString());
    }

  }

  private void setFloat(View view, String attr, float value) {
    String name = "set" + PCase(attr);
    Method m;
    try {
      if ((m = tryMethod(view, name, Context.class, float.class)) != null) {
        m.invoke(view, mContext, value);
      } else if ((m = tryMethod(view, name, float.class)) != null) {
        m.invoke(view, value);
      }
    } catch (Exception e) {
      addln(name + ":" + value + ":" + e.toString());
    }

  }

  private void setDynamicProperty(View view, String attr, String value)
      throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    String name = "set" + PCase(attr);
    try {
      Method m = tryMethod(view, name, CharSequence.class);
      if (m != null) {
        m.invoke(view, value);
      } else if ((m = tryMethod(view, name, Context.class, int.class)) != null) {
        m.invoke(view, mContext, getInteger(view, value));
      } else if ((m = tryMethod(view, name, int.class)) != null) {
        m.invoke(view, getInteger(view, value));
      } else if ((m = tryMethod(view, name, float.class)) != null) {
        m.invoke(view, Float.parseFloat(value));
      } else if ((m = tryMethod(view, name, boolean.class)) != null) {
        m.invoke(view, Boolean.parseBoolean(value));
      } else if ((m = tryMethod(view, name, Object.class)) != null) {
        m.invoke(view, value);
      } else {
        mErrors.add(view.getClass().getSimpleName() + ":" + attr + " Property not found.");
      }
    } catch (Exception e) {
      addln(name + ":" + value + ":" + e.toString());
      mErrors.add(name + ":" + value + ":" + e.toString());
    }
  }

  private String PCase(String s) {
    if (s == null) {
      return null;
    }
    if (s.length() > 0) {
      return s.substring(0, 1).toUpperCase() + s.substring(1);
    }
    return "";
  }

  private Method tryMethod(Object o, String name, Class<?>... parameters) {
    Method result;
    try {
      result = o.getClass().getMethod(name, parameters);
    } catch (Exception e) {
      result = null;
    }
    return result;
  }

  public String camelCase(String s) {
    if (s == null) {
      return "";
    } else if (s.length() < 2) {
      return s.toUpperCase();
    } else {
      return s.substring(0, 1).toUpperCase() + s.substring(1).toLowerCase();
    }
  }

  private Integer getInteger(Class<?> clazz, String value) {
    Integer result = null;
    if (value.contains("|")) {
      int work = 0;
      for (String s : value.split("\\|")) {
        work |= getInteger(clazz, s);
      }
      result = work;
    } else {
      if (value.startsWith("?")) {
        result = parseTheme(value);
      } else if (value.startsWith("@")) {
        result = parseTheme(value);
      } else if (value.startsWith("0x")) {
        try {
          result = (int) Long.parseLong(value.substring(2), 16);
        } catch (NumberFormatException e) {
          result = 0;
        }
      } else {
        try {
          result = Integer.parseInt(value);
        } catch (NumberFormatException e) {
          if (clazz == InputType.class) {
            return getInputType(value);
          }
          try {
            Field f = clazz.getField(value.toUpperCase());
            result = f.getInt(null);
          } catch (Exception ex) {
            mErrors.add("Unknown value: " + value);
            result = 0;
          }
        }
      }
    }
    return result;
  }

  private Integer getInteger(View view, String value) {
    return getInteger(view.getClass(), value);
  }

  private Integer parseTheme(String value) {
    int result;
    try {
      String query = "";
      int i;
      value = value.substring(1); // skip past "?"
      i = value.indexOf(":");
      if (i >= 0) {
        query = value.substring(0, i) + ".";
        value = value.substring(i + 1);
      }
      query += "R";
      i = value.indexOf("/");
      if (i >= 0) {
        query += "$" + value.substring(0, i);
        value = value.substring(i + 1);
      }
      Class<?> clazz = Class.forName(query);
      Field f = clazz.getField(value);
      result = f.getInt(null);
    } catch (Exception e) {
      result = 0;
    }
    return result;
  }

  private View viewClass(Context context, String name) {
    View result = null;
    result = viewClassTry(context, "android.view." + name);
    if (result == null) {
      result = viewClassTry(context, "android.widget." + name);
    }
    if (result == null) {
      result = viewClassTry(context, name);
    }
    return result;
  }

  private View viewClassTry(Context context, String name) {
    View result = null;
    try {
      Class<? extends View> viewclass = Class.forName(name).asSubclass(View.class);
      if (viewclass != null) {
        Constructor<? extends View> ct = viewclass.getConstructor(Context.class);
        result = ct.newInstance(context);
      }
    } catch (Exception e) {
    }
    return result;

  }

  public Map<String, Integer> getIdList() {
    return mIdList;
  }

  public List<String> getErrors() {
    return mErrors;
  }

  public String getIdName(int id) {
    for (String key : mIdList.keySet()) {
      if (mIdList.get(key) == id) {
        return key;
      }
    }
    return null;
  }

  public int getId(String name) {
    return mIdList.get(name);
  }

  public Map<String, Map<String, String>> getViewAsMap(View v) {
    Map<String, Map<String, String>> result = new HashMap<String, Map<String, String>>();
    for (Entry<String, Integer> entry : mIdList.entrySet()) {
      View tmp = v.findViewById(entry.getValue());
      if (tmp != null) {
        result.put(entry.getKey(), getViewInfo(tmp));
      }
    }
    return result;
  }

  public Map<String, String> getViewInfo(View v) {
    Map<String, String> result = new HashMap<String, String>();
    if (v.getId() != 0) {
      result.put("id", getIdName(v.getId()));
    }
    result.put("type", v.getClass().getSimpleName());
    addProperty(v, "text", result);
    addProperty(v, "visibility", result);
    addProperty(v, "checked", result);
    addProperty(v, "tag", result);
    addProperty(v, "selectedItemPosition", result);
    addProperty(v, "progress", result);
    return result;
  }

  private void addProperty(View v, String attr, Map<String, String> dest) {
    String result = getProperty(v, attr);
    if (result != null) {
      dest.put(attr, result);
    }
  }

  private String getProperty(View v, String attr) {
    String name = PCase(attr);
    Method m = tryMethod(v, "get" + name);
    if (m == null) {
      m = tryMethod(v, "is" + name);
    }
    String result = null;
    if (m != null) {
      try {
        Object o = m.invoke(v);
        if (o != null) {
          result = o.toString();
        }
      } catch (Exception e) {
        result = null;
      }
    }
    return result;
  }

  public static Map<String, Integer> getInputTypes() {
    if (mInputTypes.size() == 0) {
      mInputTypes.put("none", 0x00000000);
      mInputTypes.put("text", 0x00000001);
      mInputTypes.put("textCapCharacters", 0x00001001);
      mInputTypes.put("textCapWords", 0x00002001);
      mInputTypes.put("textCapSentences", 0x00004001);
      mInputTypes.put("textAutoCorrect", 0x00008001);
      mInputTypes.put("textAutoComplete", 0x00010001);
      mInputTypes.put("textMultiLine", 0x00020001);
      mInputTypes.put("textImeMultiLine", 0x00040001);
      mInputTypes.put("textNoSuggestions", 0x00080001);
      mInputTypes.put("textUri", 0x00000011);
      mInputTypes.put("textEmailAddress", 0x00000021);
      mInputTypes.put("textEmailSubject", 0x00000031);
      mInputTypes.put("textShortMessage", 0x00000041);
      mInputTypes.put("textLongMessage", 0x00000051);
      mInputTypes.put("textPersonName", 0x00000061);
      mInputTypes.put("textPostalAddress", 0x00000071);
      mInputTypes.put("textPassword", 0x00000081);
      mInputTypes.put("textVisiblePassword", 0x00000091);
      mInputTypes.put("textWebEditText", 0x000000a1);
      mInputTypes.put("textFilter", 0x000000b1);
      mInputTypes.put("textPhonetic", 0x000000c1);
      mInputTypes.put("textWebEmailAddress", 0x000000d1);
      mInputTypes.put("textWebPassword", 0x000000e1);
      mInputTypes.put("number", 0x00000002);
      mInputTypes.put("numberSigned", 0x00001002);
      mInputTypes.put("numberDecimal", 0x00002002);
      mInputTypes.put("numberPassword", 0x00000012);
      mInputTypes.put("phone", 0x00000003);
      mInputTypes.put("datetime", 0x00000004);
      mInputTypes.put("date", 0x00000014);
      mInputTypes.put("time", 0x00000024);
    }
    return mInputTypes;
  }

  /** Query class (typically R.id) to extract id names */
  public void setIdList(Class<?> idClass) {
    mIdList.clear();
    for (Field f : idClass.getDeclaredFields()) {
      try {
        String name = f.getName();
        int value = f.getInt(null);
        mIdList.put(name, value);
      } catch (Exception e) {
        // Ignore
      }
    }
  }

  public void setListAdapter(View view, JSONArray items) {
    List<String> list = new ArrayList<String>();
    try {
      for (int i = 0; i < items.length(); i++) {
        list.add(items.get(i).toString());
      }
      ArrayAdapter<String> adapter;
      if (view instanceof Spinner) {
        adapter =
            new ArrayAdapter<String>(mContext, android.R.layout.simple_spinner_item,
                android.R.id.text1, list);
      } else {
        adapter =
            new ArrayAdapter<String>(mContext, android.R.layout.simple_list_item_1,
                android.R.id.text1, list);
      }
      adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
      Method m = tryMethod(view, "setAdapter", SpinnerAdapter.class);
      if (m == null) {
        m = view.getClass().getMethod("setAdapter", ListAdapter.class);
      }
      m.invoke(view, adapter);
    } catch (Exception e) {
      mErrors.add("failed to load list " + e.getMessage());
    }
  }

  public void clearAll() {
    getErrors().clear();
    mIdList.clear();
    mNextSeq = BASESEQ;
  }
}