picked fix to #10453 to compatibility package

2 files changed, 120 insertions, 0 deletions

diff --git a/compatibility-client/src/main/java/com/vaadin/v7/client/widget/escalator/events/SpacerVisibilityChangedEvent.java b/compatibility-client/src/main/java/com/vaadin/v7/client/widget/escalator/events/SpacerVisibilityChangedEvent.java
new file mode 100755
index 0000000000..a36f0f5d7e
--- /dev/null
+++ b/compatibility-client/src/main/java/com/vaadin/v7/client/widget/escalator/events/SpacerVisibilityChangedEvent.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2000-2018 Vaadin Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.vaadin.v7.client.widget.escalator.events;
+
+import com.google.gwt.event.shared.GwtEvent;
+
+/**
+ * Event fired when a spacer element is hidden or shown in Escalator.
+ *
+ * @author Vaadin Ltd
+ * @since 7.7.13
+ */
+public class SpacerVisibilityChangedEvent
+        extends GwtEvent<SpacerVisibilityChangedHandler> {
+
+    /**
+     * Handler type.
+     */
+    public static final Type<SpacerVisibilityChangedHandler> TYPE = new Type<SpacerVisibilityChangedHandler>();
+
+    public static final Type<SpacerVisibilityChangedHandler> getType() {
+        return TYPE;
+    }
+
+    private final int rowIndex;
+    private final boolean visible;
+
+    /**
+     * Creates a spacer visibility changed event.
+     *
+     * @param rowIndex
+     *         index of row to which the spacer belongs
+     * @param visible
+     *         {@code true} if the spacer element is shown, {@code false} if the
+     *         spacer element is hidden
+     */
+    public SpacerVisibilityChangedEvent(int rowIndex, boolean visible) {
+        this.rowIndex = rowIndex;
+        this.visible = visible;
+    }
+
+    /**
+     * Gets the row index to which the spacer element belongs.
+     *
+     * @return the row index to which the spacer element belongs
+     */
+    public int getRowIndex() {
+        return rowIndex;
+    }
+
+    /**
+     * Gets whether the spacer element is displayed.
+     *
+     * @return {@code true} if the spacer element is shown, {@code false} if the
+     * spacer element is hidden
+     */
+    public boolean isVisible() {
+        return visible;
+    }
+
+    @Override
+    public Type<SpacerVisibilityChangedHandler> getAssociatedType() {
+        return TYPE;
+    }
+
+    @Override
+    protected void dispatch(SpacerVisibilityChangedHandler handler) {
+        handler.onSpacerVisibilityChanged(this);
+    }
+
+}
\ No newline at end of file
diff --git a/compatibility-client/src/main/java/com/vaadin/v7/client/widget/escalator/events/SpacerVisibilityChangedHandler.java b/compatibility-client/src/main/java/com/vaadin/v7/client/widget/escalator/events/SpacerVisibilityChangedHandler.java
new file mode 100755
index 0000000000..1be3975aeb
--- /dev/null
+++ b/compatibility-client/src/main/java/com/vaadin/v7/client/widget/escalator/events/SpacerVisibilityChangedHandler.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2000-2018 Vaadin Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.vaadin.v7.client.widget.escalator.events;
+
+import com.google.gwt.event.shared.EventHandler;
+
+/**
+ * Event handler for a spacer visibility changed event.
+ *
+ * @author Vaadin Ltd
+ * @since 7.7.13
+ */
+public interface SpacerVisibilityChangedHandler extends EventHandler {
+
+    /**
+     * Called when a spacer visibility changed event is fired, when a spacer's
+     * visibility changes.
+     *
+     * @param event
+     *            the spacer visibility changed event
+     */
+    public void onSpacerVisibilityChanged(SpacerVisibilityChangedEvent event);
+}
\ No newline at end of file