diff options
Diffstat (limited to 'server')
| -rw-r--r-- | server/src/com/vaadin/ui/ComboBox.java | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/server/src/com/vaadin/ui/ComboBox.java b/server/src/com/vaadin/ui/ComboBox.java index 033ec3cd14..077a27006e 100644 --- a/server/src/com/vaadin/ui/ComboBox.java +++ b/server/src/com/vaadin/ui/ComboBox.java @@ -16,6 +16,7 @@ package com.vaadin.ui; +import java.io.Serializable; import java.util.ArrayList; import java.util.Collection; import java.util.Iterator; @@ -49,6 +50,30 @@ public class ComboBox extends AbstractSelect implements AbstractSelect.Filtering, FieldEvents.BlurNotifier, FieldEvents.FocusNotifier { + /** + * ItemStyleGenerator can be used to add custom styles to combo box items + * shown in the popup. The CSS class name that will be added to the item + * style names is <tt>v-filterselect-item-[style name]</tt>. + * + * @since + * @see ComboBox#setItemStyleGenerator(ItemStyleGenerator) + */ + public interface ItemStyleGenerator extends Serializable { + + /** + * Called by ComboBox when an item is painted. + * + * @param source + * the source combo box + * @param itemId + * The itemId of the item to be painted. Can be + * <code>null</code> if null selection is allowed. + * @return The style name to add to this item. (the CSS class name will + * be v-filterselect-item-[style name] + */ + public String getStyle(ComboBox source, Object itemId); + } + private String inputPrompt = null; /** @@ -102,6 +127,8 @@ public class ComboBox extends AbstractSelect implements */ private boolean textInputAllowed = true; + private ItemStyleGenerator itemStyleGenerator = null; + public ComboBox() { initDefaults(); } @@ -239,6 +266,9 @@ public class ComboBox extends AbstractSelect implements target.startTag("so"); target.addAttribute("caption", ""); target.addAttribute("key", ""); + + paintItemStyle(target, null); + target.endTag("so"); } @@ -275,6 +305,9 @@ public class ComboBox extends AbstractSelect implements // at most one item can be selected at a time selectedKeys[keyIndex++] = key; } + + paintItemStyle(target, id); + target.endTag("so"); } target.endTag("options"); @@ -311,6 +344,16 @@ public class ComboBox extends AbstractSelect implements } + private void paintItemStyle(PaintTarget target, Object itemId) + throws PaintException { + if (itemStyleGenerator != null) { + String style = itemStyleGenerator.getStyle(this, itemId); + if (style != null && !style.isEmpty()) { + target.addAttribute("style", style); + } + } + } + /** * 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 @@ -866,4 +909,30 @@ public class ComboBox extends AbstractSelect implements return scrollToSelectedItem; } + /** + * Sets the item style generator that is used to produce custom styles for + * showing items in the popup. The CSS class name that will be added to the + * item style names is <tt>v-filterselect-item-[style name]</tt>. + * + * @param itemStyleGenerator + * the item style generator to set, or <code>null</code> to not + * use any custom item styles + * @since + */ + public void setItemStyleGenerator(ItemStyleGenerator itemStyleGenerator) { + this.itemStyleGenerator = itemStyleGenerator; + markAsDirty(); + } + + /** + * Gets the currently used item style generator. + * + * @return the itemStyleGenerator the currently used item style generator, + * or <code>null</code> if no generator is used + * @since + */ + public ItemStyleGenerator getItemStyleGenerator() { + return itemStyleGenerator; + } + } |