Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* Copyright 2011 Google Inc.
*
* 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.google.gwt.user.cellview.client;
import com.google.gwt.dom.client.TableRowElement;
import com.google.gwt.event.shared.EventHandler;
import com.google.gwt.event.shared.GwtEvent;
import com.google.gwt.event.shared.HasHandlers;
import com.google.gwt.user.client.Event;
/**
* Represents a row hover event. The event includes change in the hovering
* row (e.g. the mouse moves over another row) and cell hover events (e.g.
* the mouse moves over another cell within the actual row).
*/
public class RowHoverEvent extends GwtEvent {
/**
* Handler for {@link RowHoverEvent}.
*/
public static interface Handler extends EventHandler {
/**
* Called when {@link RowHoverEvent} is fired.
*
* @param event the {@link ColumnSortEvent} that was fired
*/
void onRowHover(RowHoverEvent event);
}
/**
* Indicates the scope/area of the hover event
*/
public static enum HoveringScope {
/**
* Backward-compatibility parameter to handle the rare case where we don't
* know the event's context, because it is outside of CellTable. Clients
* should not limit features (e.g. event processing) if the scope is unknown.
*/
UNKNOWN,
/**
* Change in the hovering row, the mouse is moving over different rows
*/
ROW_HOVER,
/**
* Cell-only hover event, the mouse remains on the same row
*/
CELL_HOVER
}
/**
* Handler type.
*/
private static Type TYPE;
/**
* Fires a row hover event on all registered handlers in the handler
* manager. If no such handlers exist, this implementation will do nothing.
*
* @param source the source of the event
* @param hoveringRow the currently hovering {@link TableRowElement}. If isUnHover is true, this
* should be the previouly hovering {@link TableRowElement}
* @param isUnHover true if this is an unhover event
* @return the {@link RowHoverEvent} that was fired
*/
public static RowHoverEvent fire(HasHandlers source, TableRowElement hoveringRow,
boolean isUnHover) {
return fire(source, hoveringRow, null, isUnHover, HoveringScope.UNKNOWN);
}
/**
* Fires a row hover event on all registered handlers in the handler
* manager. If no such handlers exist, this implementation will do nothing.
*
* @param source the source of the event
* @param hoveringRow the currently hovering {@link TableRowElement}. If isUnHover is true, this
* should be the previouly hovering {@link TableRowElement}
* @param browserEvent the original browser event
* @param isUnHover true if this is an unhover event
* @return the {@link RowHoverEvent} that was fired
*/
public static RowHoverEvent fire(HasHandlers source, TableRowElement hoveringRow,
Event browserEvent, boolean isUnHover) {
return fire(source, hoveringRow, browserEvent, isUnHover, HoveringScope.UNKNOWN);
}
/**
* Fires a row hover event on all registered handlers in the handler
* manager. If no such handlers exist, this implementation will do nothing.
*
* @param source the source of the event
* @param hoveringRow the currently hovering {@link TableRowElement}. If isUnHover is true, this
* should be the previouly hovering {@link TableRowElement}
* @param browserEvent the original browser event
* @param isUnHover true if this is an unhover event
* @param hoveringScope the scope/area of the hover event
* @return the {@link RowHoverEvent} that was fired
*/
public static RowHoverEvent fire(HasHandlers source, TableRowElement hoveringRow,
Event browserEvent, boolean isUnHover, HoveringScope hoveringScope) {
RowHoverEvent event = new RowHoverEvent(hoveringRow, browserEvent, isUnHover, hoveringScope);
if (TYPE != null) {
source.fireEvent(event);
}
return event;
}
/**
* Gets the type associated with this event.
*
* @return returns the handler type
*/
public static Type getType() {
if (TYPE == null) {
TYPE = new Type();
}
return TYPE;
}
private Event browserEvent;
private TableRowElement hoveringRow;
private boolean isUnHover;
private HoveringScope hoveringScope;
/**
* Construct a new {@link RowHoverEvent}.
*
* @param hoveringRow the currently hovering {@link TableRowElement}. If isUnHover is true, this
* should be the previouly hovering {@link TableRowElement}
* @param isUnHover true if this is an unhover event
*/
protected RowHoverEvent(TableRowElement hoveringRow, boolean isUnHover) {
this(hoveringRow, null, isUnHover, HoveringScope.UNKNOWN);
}
/**
* Construct a new {@link RowHoverEvent}.
*
* @param hoveringRow the currently hovering {@link TableRowElement}. If isUnHover is true, this
* should be the previouly hovering {@link TableRowElement}
* @param browserEvent the original browser event
* @param isUnHover true if this is an unhover event
*/
protected RowHoverEvent(TableRowElement hoveringRow, Event browserEvent, boolean isUnHover) {
this(hoveringRow, browserEvent, isUnHover, HoveringScope.UNKNOWN);
}
/**
* Construct a new {@link RowHoverEvent}.
*
* @param hoveringRow the currently hovering {@link TableRowElement}. If isUnHover is true, this
* should be the previouly hovering {@link TableRowElement}
* @param browserEvent the original browser event
* @param isUnHover true if this is an unhover event
* @param hoveringScope the scope/area of the hover event
*/
protected RowHoverEvent(TableRowElement hoveringRow, Event browserEvent, boolean isUnHover,
HoveringScope hoveringScope) {
this.hoveringRow = hoveringRow;
this.browserEvent = browserEvent;
this.isUnHover = isUnHover;
this.hoveringScope = hoveringScope;
}
@Override
public Type getAssociatedType() {
return TYPE;
}
/**
* Return the original browser {@link Event}. The browser event could be null if the event is
* fired without one (e.g., by calling {@link #fire(HasHandler, TableRowElement, isUnHover)})
*/
public Event getBrowserEvent() {
return browserEvent;
}
/**
* Return the {@link TableRowElement} that the user just hovered or unhovered.
*/
public TableRowElement getHoveringRow() {
return hoveringRow;
}
/**
* Return the scope/area of the hover event.
*/
public HoveringScope getHoveringScope() {
return hoveringScope;
}
/**
* Return whether this is an unhover event.
*/
public boolean isUnHover() {
return isUnHover;
}
@Override
protected void dispatch(Handler handler) {
handler.onRowHover(this);
}
}
