Adding gwt QR Code generator, and appspot configuration files.

[zxing.git] / zxing.appspot.com / generator / src / com / google / zxing / web / generator / client / UrlGenerator.java

diff --git a/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/UrlGenerator.java b/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/UrlGenerator.java
new file mode 100644 (file)
index 0000000..bb5d23c
--- /dev/null
+++ b/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/UrlGenerator.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2008 ZXing authors
+ *
+ * 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.google.zxing.web.generator.client;
+
+import com.google.gwt.user.client.ui.ChangeListener;
+import com.google.gwt.user.client.ui.Grid;
+import com.google.gwt.user.client.ui.TextBox;
+import com.google.gwt.user.client.ui.Widget;
+
+/**
+ * A generator for URL addresses.
+ * 
+ * @author Yohann Coppel
+ */
+public class UrlGenerator implements GeneratorSource {
+  Grid table = null;
+  TextBox url = new TextBox();
+  
+  public UrlGenerator(ChangeListener listener) {
+    url.addStyleName(StylesDefs.INPUT_FIELD_REQUIRED);
+    url.addChangeListener(listener);
+  }
+  
+  public Grid getWidget() {
+    if (table != null) {
+      // early termination if the table has already been constructed
+      return table;
+    }
+    
+    table = new Grid(1, 2);
+    table.getColumnFormatter().addStyleName(0, "firstColumn");
+    
+    url.setText("http://");
+    
+    table.setText(0, 0, "URL");
+    table.setWidget(0, 1, url);
+    
+    return table;
+  }
+
+  public String getName() {
+    return "URL";
+  }
+
+  public String getText() throws GeneratorException {
+    String input = getUrlField();
+    return input;
+  }
+
+  private String getUrlField() throws GeneratorException {
+    String input = url.getText();
+    Validators.validateUrl(input);
+    return input;
+  }
+  
+  public void validate(Widget widget) throws GeneratorException {
+    if (widget == url) getUrlField();
+  }
+  
+  public void setFocus() {
+    url.setFocus(true);
+  }
+}