1 files changed, 118 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/uimodel/UiTextValueNode.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/uimodel/UiTextValueNode.java
new file mode 100644
index 000000000..33fa9fc99
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/uimodel/UiTextValueNode.java
@@ -0,0 +1,118 @@
+/*
+ * 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.uimodel;
+
+import com.android.ide.eclipse.adt.internal.editors.descriptors.TextValueDescriptor;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.w3c.dom.Text;
+
+/**
+ * Represents an XML element value in that can be modified using a simple text field
+ * in the XML editor's user interface.
+ */
+public class UiTextValueNode extends UiTextAttributeNode {
+
+    public UiTextValueNode(TextValueDescriptor attributeDescriptor, UiElementNode uiParent) {
+        super(attributeDescriptor, uiParent);
+    }
+
+    /**
+     * Updates the current text field's value when the XML has changed.
+     * <p/>
+     * The caller doesn't really know if value of the element has changed,
+     * so it will call this to refresh the value anyway. The value
+     * is only set if it has changed.
+     * <p/>
+     * This also resets the "dirty" flag.
+    */
+    @Override
+    public void updateValue(Node xml_attribute_node) {
+        setCurrentValue(DEFAULT_VALUE);
+
+        // The argument xml_attribute_node is not used here. It should always be
+        // null since this is not an attribute. What we want is the "text value" of
+        // the parent element, which is actually the first text node of the element.
+        
+        UiElementNode parent = getUiParent();
+        if (parent != null) {
+            Node xml_node = parent.getXmlNode();
+            if (xml_node != null) {
+                for (Node xml_child = xml_node.getFirstChild();
+                    xml_child != null;
+                    xml_child = xml_child.getNextSibling()) {
+                    if (xml_child.getNodeType() == Node.TEXT_NODE) {
+                        setCurrentValue(xml_child.getNodeValue());
+                        break;
+                    }
+                }
+            }
+        }
+
+        if (isValid() && !getTextWidgetValue().equals(getCurrentValue())) {
+            try {
+                setInInternalTextModification(true);
+                setTextWidgetValue(getCurrentValue());
+                setDirty(false);
+            } finally {
+                setInInternalTextModification(false);
+            }
+        }
+    }
+
+    /* (non-java doc)
+     * Called by the user interface when the editor is saved or its state changed
+     * and the modified "attributes" must be committed (i.e. written) to the XML model.
+     */
+    @Override
+    public void commit() {
+        UiElementNode parent = getUiParent();
+        if (parent != null && isValid() && isDirty()) {
+            // Get (or create) the underlying XML element node that contains the value.
+            Node element = parent.prepareCommit();
+            if (element != null) {
+                String value = getTextWidgetValue();
+
+                // Try to find an existing text child to update.
+                boolean updated = false;
+
+                for (Node xml_child = element.getFirstChild();
+                        xml_child != null;
+                        xml_child = xml_child.getNextSibling()) {
+                    if (xml_child.getNodeType() == Node.TEXT_NODE) {
+                        xml_child.setNodeValue(value);
+                        updated = true;
+                        break;
+                    }
+                }
+
+                // If we didn't find a text child to update, we need to create one.
+                if (!updated) {
+                    Document doc = element.getOwnerDocument();
+                    if (doc != null) {
+                        Text text = doc.createTextNode(value);
+                        element.appendChild(text);
+                    }
+                }
+                
+                setCurrentValue(value);
+            }
+        }
+        setDirty(false);
+    }
+}