Implement onReceivedTouchIconUrl.

Add DownloadTouchIcon, an AsyncTask that downloads the apple-touch-icon for urls
that are marked as bookmarks. The touch icon is stored in the bookmark database
similar to favicons and thumbnails. If a shortcut is created for a bookmark
containing a touch icon, the touch icon is used (with rounded corners).

Refactor the bookmarks query to be a static function. The function uses the
original url and new url to look for matching bookmarks. This takes care of
redirects as well as bookmarks containing queries.

1 files changed, 118 insertions, 0 deletions

diff --git a/src/com/android/browser/DownloadTouchIcon.java b/src/com/android/browser/DownloadTouchIcon.java
new file mode 100644
index 0000000..6662e09
--- /dev/null
+++ b/src/com/android/browser/DownloadTouchIcon.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2009 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.browser;
+
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.http.AndroidHttpClient;
+import android.os.AsyncTask;
+import android.provider.Browser;
+import android.webkit.WebView;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.params.HttpClientParams;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+class DownloadTouchIcon extends AsyncTask<String, Void, Bitmap> {
+    private final ContentResolver mContentResolver;
+    private final Cursor mCursor;
+    private final String mOriginalUrl;
+    private final String mUrl;
+    private final String mUserAgent;
+
+    public DownloadTouchIcon(ContentResolver cr, Cursor c, WebView view) {
+        mContentResolver = cr;
+        mCursor = c;
+        // Store these in case they change.
+        mOriginalUrl = view.getOriginalUrl();
+        mUrl = view.getUrl();
+        mUserAgent = view.getSettings().getUserAgentString();
+    }
+
+    public DownloadTouchIcon(ContentResolver cr, Cursor c, String url) {
+        mContentResolver = cr;
+        mCursor = c;
+        mOriginalUrl = null;
+        mUrl = url;
+        mUserAgent = null;
+    }
+
+    @Override
+    public Bitmap doInBackground(String... values) {
+        String url = values[0];
+
+        AndroidHttpClient client = AndroidHttpClient.newInstance(
+                mUserAgent);
+        HttpGet request = new HttpGet(url);
+
+        // Follow redirects
+        HttpClientParams.setRedirecting(client.getParams(), true);
+
+        try {
+            HttpResponse response = client.execute(request);
+
+            if (response.getStatusLine().getStatusCode() == 200) {
+                HttpEntity entity = response.getEntity();
+                if (entity != null) {
+                    InputStream content = entity.getContent();
+                    if (content != null) {
+                        Bitmap icon = BitmapFactory.decodeStream(
+                                content, null, null);
+                        return icon;
+                    }
+                }
+            }
+        } catch (IllegalArgumentException ex) {
+            request.abort();
+        } catch (IOException ex) {
+            request.abort();
+        } finally {
+            client.close();
+        }
+        return null;
+    }
+
+    @Override
+    public void onPostExecute(Bitmap icon) {
+        if (icon == null || mCursor == null) {
+            return;
+        }
+        final ByteArrayOutputStream os = new ByteArrayOutputStream();
+        icon.compress(Bitmap.CompressFormat.PNG, 100, os);
+        ContentValues values = new ContentValues();
+        values.put(Browser.BookmarkColumns.TOUCH_ICON,
+                os.toByteArray());
+
+        if (mCursor.moveToFirst()) {
+            do {
+                mContentResolver.update(ContentUris.withAppendedId(
+                        Browser.BOOKMARKS_URI, mCursor.getInt(0)),
+                        values, null, null);
+            } while (mCursor.moveToNext());
+        }
+        mCursor.close();
+    }
+}