android content shell bringup.

content/shell/android/java/org/chromium/content_shell/ShellView.java

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content_shell;
 
 import android.content.Context;
 import android.graphics.drawable.ClipDrawable;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.view.KeyEvent;
 import android.view.View;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.EditText;
 import android.widget.FrameLayout;
 import android.widget.ImageButton;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;
 
 import org.chromium.base.CalledByNative;
 import org.chromium.content.browser.ContentView;
+import org.chromium.content.browser.ContentViewClient;
 
 /**
  * Container for the various UI components that make up a shell window.
  */
 public class ShellView extends LinearLayout {
 
     private static final long COMPLETED_PROGRESS_TIMEOUT_MS = 200;
 
     private int mNativeShellView;
+    // TODO(jrg): a mContentView.destroy() call is needed, both upstream and downstream.
     private ContentView mContentView;
     private EditText mUrlTextView;
     private ImageButton mPrevButton;
     private ImageButton mNextButton;
 
     private ClipDrawable mProgressDrawable;
 
     /**
      * Constructor for inflating via XML.
      */
@@ skipping 94 matching lines @@
      */
     @SuppressWarnings("unused")
     @CalledByNative
     private void initFromNativeTabContents(int nativeTabContents) {
         // TODO(tedchoc): Pass along native tab contents.
         mContentView = new ContentView(getContext());
         ((FrameLayout) findViewById(R.id.contentview_holder)).addView(mContentView,
                 new FrameLayout.LayoutParams(
                         FrameLayout.LayoutParams.MATCH_PARENT,
                         FrameLayout.LayoutParams.MATCH_PARENT));
+        mContentView.setContentViewClient(new ShellContentViewClient());
     }
 
     /**
      * @return The {@link ContentView} currently shown by this Shell.
      */
     public ContentView getContentView() {
         return mContentView;
     }
 
     private void setKeyboardVisibilityForUrl(boolean visible) {
         InputMethodManager imm = (InputMethodManager) getContext().getSystemService(
                 Context.INPUT_METHOD_SERVICE);
         if (visible) {
             imm.showSoftInput(mUrlTextView, InputMethodManager.SHOW_IMPLICIT);
         } else {
             imm.hideSoftInputFromWindow(mUrlTextView.getWindowToken(), 0);
         }
     }
 
     private native int nativeInit();
+
+    private class ShellContentViewClient extends ContentViewClient {
+        private Runnable mClearProgressRunnable = new Runnable() {
+            @Override
+            public void run() {
+                mProgressDrawable.setLevel(0);
+            }
+        };
+
+        @Override
+        public void onUpdateUrl(String url) {
+            super.onUpdateUrl(url);
+            mUrlTextView.setText(url);
+        }
+
+        @Override
+        public void onLoadProgressChanged(final double progress) {
+            super.onLoadProgressChanged(progress);
+            removeCallbacks(mClearProgressRunnable);
+            mProgressDrawable.setLevel((int) (10000.0 * progress));
+            if (progress == 1.0) postDelayed(mClearProgressRunnable, COMPLETED_PROGRESS_TIMEOUT_MS);
+        }
+
+        @Override
+        public void onTabCrash(int pid) {
+            super.onTabCrash(pid);
+            mProgressDrawable.setLevel(0);
+        }
+    }
 }