1 files changed, 82 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/values/uimodel/UiColorValueNode.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/values/uimodel/UiColorValueNode.java
new file mode 100644
index 000000000..9c84b36f9
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/values/uimodel/UiColorValueNode.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
+ *
+ * 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.ide.eclipse.adt.internal.editors.values.uimodel;
+
+import com.android.ide.eclipse.adt.internal.editors.descriptors.TextValueDescriptor;
+import com.android.ide.eclipse.adt.internal.editors.uimodel.UiAttributeNode;
+import com.android.ide.eclipse.adt.internal.editors.uimodel.UiElementNode;
+import com.android.ide.eclipse.adt.internal.editors.uimodel.UiTextValueNode;
+
+import org.eclipse.jface.dialogs.IMessageProvider;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.events.ModifyEvent;
+import org.eclipse.swt.events.ModifyListener;
+import org.eclipse.swt.widgets.Text;
+
+import java.util.regex.Pattern;
+
+/**
+ * Displays and edits a color XML element value with a custom validator.
+ * <p/>
+ * See {@link UiAttributeNode} for more information.
+ */
+public class UiColorValueNode extends UiTextValueNode {
+
+    /** Accepted RGBA formats are one of #RGB, #ARGB, #RRGGBB or #AARRGGBB. */
+    private static final Pattern RGBA_REGEXP = Pattern.compile(
+            "#(?:[0-9a-fA-F]{3,4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})"); //$NON-NLS-1$
+
+    public UiColorValueNode(TextValueDescriptor attributeDescriptor, UiElementNode uiParent) {
+        super(attributeDescriptor, uiParent);
+    }
+
+    /* (non-java doc)
+     *
+     * Add a modify listener that will check colors have the proper format,
+     * that is one of #RGB, #ARGB, #RRGGBB or #AARRGGBB.
+     */
+    @Override
+    protected void onAddValidators(final Text text) {
+        ModifyListener listener = new ModifyListener() {
+            @Override
+            public void modifyText(ModifyEvent e) {
+                String color = text.getText();
+                if (RGBA_REGEXP.matcher(color).matches()) {
+                    getManagedForm().getMessageManager().removeMessage(text, text);
+                } else {
+                    getManagedForm().getMessageManager().addMessage(text,
+                            "Accepted color formats are one of #RGB, #ARGB, #RRGGBB or #AARRGGBB.",
+                            null /* data */, IMessageProvider.ERROR, text);
+                }
+            }
+        };
+
+        text.addModifyListener(listener);
+
+        // Make sure the validator removes its message(s) when the widget is disposed
+        text.addDisposeListener(new DisposeListener() {
+            @Override
+            public void widgetDisposed(DisposeEvent e) {
+                getManagedForm().getMessageManager().removeMessage(text, text);
+            }
+        });
+
+        // Finally call the validator once to make sure the initial value is processed
+        listener.modifyText(null);
+    }
+}