/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* 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 org.uberfire.client.views.pfly.tab;
import javax.enterprise.context.Dependent;
import com.google.gwt.user.client.ui.ProvidesResize;
import com.google.gwt.user.client.ui.RequiresResize;
import com.google.gwt.user.client.ui.Widget;
import org.gwtbootstrap3.client.ui.TabPane;
import org.uberfire.client.resources.WorkbenchResources;
import org.uberfire.client.util.Layouts;
@Dependent
@Resize
public class ResizeTabPanel extends TabPanelWithDropdowns implements RequiresResize,
ProvidesResize {
@Override
public void onResize() {
final Widget parent = this.getParent();
int width = parent.getOffsetWidth();
int height = parent.getOffsetHeight();
if (width == 0 && height == 0) {
//it's `invisible` = makes no sense try to resize
return;
}
height = height - getTabBarHeight();
Layouts.setToFillParent(this);
// TabContent is just a container for all the TabPane divs, one of which is made visible at a time.
// For compatibility with GWT LayoutPanel, we have to set both layers of children to fill their parents.
// We do it in onResize() to get to the TabPanes no matter how they were added.
for (Widget child : tabContent) {
child.setPixelSize(width,
height);
Layouts.setToFillParent(child);
if (child instanceof TabPane) {
final TabPane tabPane = (TabPane) child;
if (tabPane.isActive()) {
for (int i = 0; i < tabPane.getWidgetCount(); i++) {
final Widget tabChild = tabPane.getWidget(i);
tabChild.setPixelSize(width,
height);
Layouts.setToFillParent(tabChild);
if (tabChild instanceof RequiresResize) {
((RequiresResize) tabChild).onResize();
}
}
}
}
}
}
/**
* Returns the height (in pixels) taken up by the tab bar.
*/
public int getTabBarHeight() {
return tabBar.getOffsetHeight();
}
/**
* Makes the tab panel look more or less prominent.
* @param hasFocus if true, the tab panel will look more prominent. If false, the tab panel will look normal.
*/
public void setFocus(boolean hasFocus) {
if (hasFocus) {
tabBar.addStyleName(WorkbenchResources.INSTANCE.CSS().activeNavTabs());
} else {
tabBar.removeStyleName(WorkbenchResources.INSTANCE.CSS().activeNavTabs());
}
}
}