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Diffstat (limited to 'documentation/components/components-button.asciidoc')
| -rw-r--r-- | documentation/components/components-button.asciidoc | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/documentation/components/components-button.asciidoc b/documentation/components/components-button.asciidoc index 9105aa5e9b..fdd6cf594f 100644 --- a/documentation/components/components-button.asciidoc +++ b/documentation/components/components-button.asciidoc @@ -15,8 +15,8 @@ endif::web[] The [classname]#Button# component is normally used for initiating some action, such as finalizing input in forms. When the user clicks a button, a -[classname]#Button.ClickEvent# is fired, which can be handled with a -[interfacename]#Button.ClickListener# in the [methodname]#buttonClick()# method. +[classname]#Button.ClickEvent# is fired, which can be handled by adding a __click listener__ +using either the [methodname]#onClick()# or the [methodname]#addClickListener()# method. You can handle button clicks with an anonymous class as follows: @@ -25,14 +25,7 @@ You can handle button clicks with an anonymous class as follows: ---- Button button = new Button("Do not press this button"); -button.addClickListener(new Button.ClickListener() { - public void buttonClick(ClickEvent event) { - Notification.show("Do not press this button again"); - } -}); - -// Java 8 -button.addClickListener(click -> +button.addClickListener(clickEvent -> Notification.show("Do not press this button again")); ---- See the http://demo.vaadin.com/book-examples-vaadin7/book#component.button.basic[on-line example, window="_blank"]. @@ -45,11 +38,10 @@ The button component can be styled in many ways, as illustrated in <<figure.comp .Button in Different Styles of Valo Theme image::img/button-example1.png[width=70%, scaledwidth=100%] -If you handle several buttons in the same listener, you can differentiate -between them either by comparing the [classname]#Button# object reference -returned by the [methodname]#getButton()# method of -[classname]#Button.ClickEvent# to a kept reference. For a detailed description -of these patterns together with some examples, please see +If you handle several buttons in the same listener, you can differentiate between +them by comparing the [classname]#Button# object reference returned by the [methodname]#getButton()# +method of [classname]#Button.ClickEvent# to a kept reference. For a detailed description +of these patterns together with some examples, please see <<dummy/../../../framework/architecture/architecture-events#architecture.events,"Events and Listeners">>. == CSS Style Rules |