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- /*
- * Copyright 2011 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.terminal.gwt.client;
-
- import com.google.gwt.core.client.impl.SchedulerImpl;
-
- public class VSchedulerImpl extends SchedulerImpl {
-
- /**
- * Keeps track of if there are deferred commands that are being executed. 0
- * == no deferred commands currently in progress, > 0 otherwise.
- */
- private int deferredCommandTrackers = 0;
-
- @Override
- public void scheduleDeferred(ScheduledCommand cmd) {
- deferredCommandTrackers++;
- super.scheduleDeferred(cmd);
- super.scheduleDeferred(new ScheduledCommand() {
-
- @Override
- public void execute() {
- deferredCommandTrackers--;
- }
- });
- }
-
- public boolean hasWorkQueued() {
- boolean hasWorkQueued = (deferredCommandTrackers != 0);
- return hasWorkQueued;
- }
- }
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