/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) 1999-2006 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.core.gui.components.tabbedpane;
import org.olat.core.gui.components.Component;
import org.olat.core.gui.components.ComponentRenderer;
import org.olat.core.gui.control.winmgr.AJAXFlags;
import org.olat.core.gui.render.RenderResult;
import org.olat.core.gui.render.Renderer;
import org.olat.core.gui.render.RenderingState;
import org.olat.core.gui.render.StringOutput;
import org.olat.core.gui.render.URLBuilder;
import org.olat.core.gui.translator.Translator;
/**
* Description:<br>
* @author Felix Jost
*/
public class TabbedPaneScreenreaderRenderer implements ComponentRenderer {
/**
*
*
*/
public TabbedPaneScreenreaderRenderer() {
//
}
/**
*
* @see org.olat.core.gui.render.ui.ComponentRenderer#render(org.olat.core.gui.render.Renderer, org.olat.core.gui.render.StringOutput, org.olat.core.gui.components.Component, org.olat.core.gui.render.URLBuilder, org.olat.core.gui.translator.Translator, org.olat.core.gui.render.RenderResult, java.lang.String[])
*/
public void render(Renderer renderer, StringOutput sb, Component source, URLBuilder ubu, Translator translator, RenderResult renderResult, String[] args) {
TabbedPane tb = (TabbedPane)source;
int cnt = tb.getTabCount();
if (cnt == 0) return; // nothing to render
// (cnt > 0) render tabs
int selPane = tb.getSelectedPane();
boolean iframePostEnabled = renderer.getGlobalSettings().getAjaxFlags().isIframePostEnabled();
// add overview info for screenreader
Translator comptrans = tb.getCompTrans();
sb.append(comptrans.translate("sr.intro", new String[] {String.valueOf(cnt)}));
for (int i = 0; i < cnt; i++) {
String tabName = tb.getDisplayNameAt(i);
if (!tb.isEnabled(i)) {
// if a pane is not enabled
sb.append(comptrans.translate("sr.tab.notenabled", new String[] {tabName}));
} else if (i == selPane) {
// mark active pane
sb.append(comptrans.translate("sr.tab.active", new String[] {tabName}));
} else {
// normal, enabled, but not active pane
sb.append("<a href=\"");
ubu.buildURI(sb, new String[]{ TabbedPane.PARAM_PANE_ID }, new String[]{ String.valueOf(i) }, iframePostEnabled? AJAXFlags.MODE_TOBGIFRAME : AJAXFlags.MODE_NORMAL);
sb.append("\" onclick=\"return o2cl()\"");
if (iframePostEnabled) {
ubu.appendTarget(sb);
}
sb.append(">");
sb.append(comptrans.translate("sr.tab.normal", new String[] {tabName}));
sb.append("</a>");
}
}
sb.append(comptrans.translate("sr.introcontent"));
// now let the selected component render itself
Component paneToRender = tb.getTabAt(selPane);
if (paneToRender == null) throw new RuntimeException("a tabbed pane must not be null, but a component");
renderer.render(sb, paneToRender, null);
}
/**
*
* @see org.olat.core.gui.render.ui.ComponentRenderer#renderHeaderIncludes(org.olat.core.gui.render.Renderer, org.olat.core.gui.render.StringOutput, org.olat.core.gui.components.Component, org.olat.core.gui.render.URLBuilder, org.olat.core.gui.translator.Translator)
*/
public void renderHeaderIncludes(Renderer renderer, StringOutput sb, Component source, URLBuilder ubu, Translator translator, RenderingState rstate) {
TabbedPane tp = (TabbedPane)source;
int cnt = tp.getTabCount();
if (cnt > 0) {
Component toRender = tp.getTabAt(tp.getSelectedPane());
// delegate header rendering to the selected pane
renderer.renderHeaderIncludes(sb, toRender, rstate);
}
}
/**
*
* @see org.olat.core.gui.render.ui.ComponentRenderer#renderBodyOnLoadJSFunctionCall(org.olat.core.gui.render.Renderer, org.olat.core.gui.render.StringOutput, org.olat.core.gui.components.Component)
*/
public void renderBodyOnLoadJSFunctionCall(Renderer renderer, StringOutput sb, Component source, RenderingState rstate) {
TabbedPane tp = (TabbedPane)source;
int cnt = tp.getTabCount();
if (cnt > 0) {
Component toRender = tp.getTabAt(tp.getSelectedPane());
// delegate js rendering to the selected pane
renderer.renderBodyOnLoadJSFunctionCall(sb, toRender, rstate);
}
}
}