1 files changed, 181 insertions, 0 deletions
diff --git a/src/com/android/im/app/ContactsPickerActivity.java b/src/com/android/im/app/ContactsPickerActivity.java
new file mode 100644
index 0000000..eb52aa3
--- /dev/null
+++ b/src/com/android/im/app/ContactsPickerActivity.java
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2007-2008 Esmertec AG.
+ * Copyright (C) 2007-2008 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.im.app;
+
+import com.android.im.R;
+
+import android.app.ListActivity;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.DatabaseUtils;
+import android.net.Uri;
+import android.os.Bundle;
+import android.provider.Im;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.Filter;
+import android.widget.ListView;
+import android.widget.ResourceCursorAdapter;
+
+/**
+ * Activity used to pick a contact.
+ */
+public class ContactsPickerActivity extends ListActivity {
+    public final static String EXTRA_EXCLUDED_CONTACTS = "excludes";
+
+    public final static String EXTRA_RESULT_USERNAME = "result";
+
+    private ContactsAdapter mAdapter;
+    private String mExcludeClause;
+    Uri mData;
+    Filter mFilter;
+
+    private static final void log(String msg) {
+        Log.d(ImApp.LOG_TAG, "<ContactsPickerActivity> " + msg);
+    }
+
+    @Override
+    protected void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+
+        setContentView(R.layout.contacts_picker_activity);
+        if(!resolveIntent()){
+            if(Log.isLoggable(ImApp.LOG_TAG, Log.DEBUG)) {
+                log("no data, finish");
+            }
+            finish();
+            return;
+        }
+
+        EditText filter = (EditText)findViewById(R.id.filter);
+        filter.addTextChangedListener(new TextWatcher() {
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+                mFilter.filter(s);
+            }
+
+            public void afterTextChanged(Editable s) {
+            }
+        });
+    }
+
+    private boolean resolveIntent() {
+        Intent i = getIntent();
+        mData = i.getData();
+
+        if(mData == null) {
+            return false;
+        }
+        mExcludeClause = buildExcludeClause(i.getStringArrayExtra(EXTRA_EXCLUDED_CONTACTS));
+        Cursor cursor = managedQuery(mData, ContactView.CONTACT_PROJECTION,
+                mExcludeClause, Im.Contacts.DEFAULT_SORT_ORDER);
+        if (cursor == null) {
+            return false;
+        }
+
+        mAdapter = new ContactsAdapter(this, cursor);
+        mFilter = mAdapter.getFilter();
+        setListAdapter(mAdapter);
+        return true;
+    }
+
+    @Override
+    protected void onListItemClick(ListView l, View v, int position, long id) {
+        Cursor cursor = (Cursor)mAdapter.getItem(position);
+        Intent data = new Intent();
+        data.putExtra(EXTRA_RESULT_USERNAME,
+                cursor.getString(ContactView.COLUMN_CONTACT_USERNAME));
+        setResult(RESULT_OK, data);
+        finish();
+    }
+
+    private static String buildExcludeClause(String[] excluded) {
+        if (excluded == null || excluded.length == 0) {
+            return null;
+        }
+
+        StringBuilder clause = new StringBuilder();
+        clause.append(Im.Contacts.USERNAME);
+        clause.append(" NOT IN (");
+        int len = excluded.length;
+        for (int i = 0; i < len - 1; i++) {
+            DatabaseUtils.appendValueToSql(clause, excluded[i]);
+            clause.append(',');
+        }
+        DatabaseUtils.appendValueToSql(clause, excluded[len - 1]);
+        clause.append(')');
+        return clause.toString();
+    }
+
+    Cursor runQuery(CharSequence constraint) {
+        String where;
+        if (constraint == null) {
+            where = mExcludeClause;
+        } else {
+            StringBuilder buf = new StringBuilder();
+            if (mExcludeClause != null) {
+                buf.append(mExcludeClause).append(" AND ");
+            }
+
+            buf.append(Im.Contacts.NICKNAME);
+            buf.append(" LIKE ");
+            DatabaseUtils.appendValueToSql(buf, "%" + constraint + "%");
+
+            where = buf.toString();
+        }
+        return managedQuery(mData, ContactView.CONTACT_PROJECTION, where,
+                Im.Contacts.DEFAULT_SORT_ORDER);
+    }
+
+    private class ContactsAdapter extends ResourceCursorAdapter {
+        private String mConstraints;
+
+        public ContactsAdapter(Context context, Cursor c) {
+            super(context, R.layout.contact_view, c);
+        }
+
+        @Override
+        public void bindView(View view, Context context, Cursor cursor) {
+            ContactView v = (ContactView)view;
+            v.setPadding(0, 0, 0, 0);
+            v.bind(cursor, mConstraints, false);
+        }
+
+        @Override
+        public void changeCursor(Cursor cursor) {
+            if(mCursor != null && mCursor != cursor) {
+                mCursor.deactivate();
+            }
+            super.changeCursor(cursor);
+        }
+
+        @Override
+        public Cursor runQueryOnBackgroundThread(CharSequence constraint) {
+            mConstraints = constraint.toString();
+
+            return ContactsPickerActivity.this.runQuery(constraint);
+        }
+    }
+
+}