Android Open Source - bad Bad Layout Factory

From Project

Back to project page bad.

License

The source code is released under:

Copyright (C) 2013 Madis Pink Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Softwa...

If you think the Android project bad listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.madisp.bad.lib;
// w w  w  .jav a  2  s .  c om
import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import com.madisp.bad.decor.BadDecorator;
import com.madisp.bad.eval.BadScope;
import com.madisp.bad.eval.Scope;

import java.util.ArrayList;

public class BadLayoutFactory implements LayoutInflater.Factory {
  private LayoutInflater inflater;
  private LayoutInflater.Factory wrapped;

  private Scope scope;

  private ArrayList<BadDecorator> decorators = new ArrayList<BadDecorator>(50);

  public BadLayoutFactory(LayoutInflater inflater, Scope rootScope) {
    this.wrapped = inflater.getFactory();
    this.inflater = inflater.cloneInContext(inflater.getContext());
    this.scope = rootScope;
    this.inflater.setFactory(this);
  }

  public LayoutInflater getInflater() {
    return inflater;
  }

  public void addDecorator(BadDecorator decor) {
    decorators.add(decor);
  }

  public void pushScope(Object base) {
    scope = new BadScope(scope, base);
  }

  public void popScope() {
    if (scope != null) {
      scope = scope.getParent();
    }
  }

  @Override @SuppressWarnings("unchecked")
  public View onCreateView(String name, Context context, AttributeSet attrs) {
    View v = null;
    if (wrapped != null) {
      v = wrapped.onCreateView(name, context, attrs);
    }

    if (v == null) {
      // default inflater
      try {
        if (!name.contains(".")) {
          if ("WebView".equals(name)) {
            name = "android.webkit.WebView";
          } else {
            name = "android.widget." + name;
          }
        }
        v = inflater.createView(name, null, attrs);
      } catch (ClassNotFoundException cnfe) {
        return null;
      }
    }
    /* magic happens here */
    TypedValue out = new TypedValue();
    for (BadDecorator decor : decorators) {
      if (decor.clazz().isAssignableFrom(v.getClass())) {
        int[] attrKeys = decor.attrs();
        TypedArray arr = context.getResources().obtainAttributes(attrs, attrKeys);
        for (int i = 0; i < arr.length(); i++) {
          if (arr.hasValue(i)) {
            arr.getValue(i, out);
            decor.decorate(curScope(), attrKeys[i], out, v);
          }
        }
        decor.apply(curScope(), v, this);
      }
    }
    v.setTag(R.id.tagScope, curScope());
    return v;
  }

  private Scope curScope() {
    return scope;
  }
}

Java Source Code List