Moved server files to a server src folder (#9299)

1 files changed, 116 insertions, 0 deletions

diff --git a/server/src/com/vaadin/ui/ComboBox.java b/server/src/com/vaadin/ui/ComboBox.java
new file mode 100644
index 0000000000..6286dad124
--- /dev/null
+++ b/server/src/com/vaadin/ui/ComboBox.java
@@ -0,0 +1,116 @@
+/* 
+@VaadinApache2LicenseForJavaFiles@
+ */
+
+package com.vaadin.ui;
+
+import java.util.Collection;
+
+import com.vaadin.data.Container;
+import com.vaadin.terminal.PaintException;
+import com.vaadin.terminal.PaintTarget;
+import com.vaadin.terminal.gwt.client.ui.combobox.VFilterSelect;
+
+/**
+ * A filtering dropdown single-select. Suitable for newItemsAllowed, but it's
+ * turned of by default to avoid mistakes. Items are filtered based on user
+ * input, and loaded dynamically ("lazy-loading") from the server. You can turn
+ * on newItemsAllowed and change filtering mode (and also turn it off), but you
+ * can not turn on multi-select mode.
+ * 
+ */
+@SuppressWarnings("serial")
+public class ComboBox extends Select {
+
+    private String inputPrompt = null;
+
+    /**
+     * If text input is not allowed, the ComboBox behaves like a pretty
+     * NativeSelect - the user can not enter any text and clicking the text
+     * field opens the drop down with options
+     */
+    private boolean textInputAllowed = true;
+
+    public ComboBox() {
+        setNewItemsAllowed(false);
+    }
+
+    public ComboBox(String caption, Collection<?> options) {
+        super(caption, options);
+        setNewItemsAllowed(false);
+    }
+
+    public ComboBox(String caption, Container dataSource) {
+        super(caption, dataSource);
+        setNewItemsAllowed(false);
+    }
+
+    public ComboBox(String caption) {
+        super(caption);
+        setNewItemsAllowed(false);
+    }
+
+    /**
+     * Gets the current input prompt.
+     * 
+     * @see #setInputPrompt(String)
+     * @return the current input prompt, or null if not enabled
+     */
+    public String getInputPrompt() {
+        return inputPrompt;
+    }
+
+    /**
+     * Sets the input prompt - a textual prompt that is displayed when the
+     * select would otherwise be empty, to prompt the user for input.
+     * 
+     * @param inputPrompt
+     *            the desired input prompt, or null to disable
+     */
+    public void setInputPrompt(String inputPrompt) {
+        this.inputPrompt = inputPrompt;
+        requestRepaint();
+    }
+
+    @Override
+    public void paintContent(PaintTarget target) throws PaintException {
+        if (inputPrompt != null) {
+            target.addAttribute("prompt", inputPrompt);
+        }
+        super.paintContent(target);
+
+        if (!textInputAllowed) {
+            target.addAttribute(VFilterSelect.ATTR_NO_TEXT_INPUT, true);
+        }
+    }
+
+    /**
+     * Sets whether it is possible to input text into the field or whether the
+     * field area of the component is just used to show what is selected. By
+     * disabling text input, the comboBox will work in the same way as a
+     * {@link NativeSelect}
+     * 
+     * @see #isTextInputAllowed()
+     * 
+     * @param textInputAllowed
+     *            true to allow entering text, false to just show the current
+     *            selection
+     */
+    public void setTextInputAllowed(boolean textInputAllowed) {
+        this.textInputAllowed = textInputAllowed;
+        requestRepaint();
+    }
+
+    /**
+     * Returns true if the user can enter text into the field to either filter
+     * the selections or enter a new value if {@link #isNewItemsAllowed()}
+     * returns true. If text input is disabled, the comboBox will work in the
+     * same way as a {@link NativeSelect}
+     * 
+     * @return
+     */
+    public boolean isTextInputAllowed() {
+        return textInputAllowed;
+    }
+
+}