code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/PithosDisclosurePanel.java

   1 /*
   2  * Copyright 2012 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35
  36 package gr.grnet.pithos.web.client;
  37
  38 import gr.grnet.pithos.web.client.grouptree.GroupTreeView;
  39 import gr.grnet.pithos.web.client.grouptree.GroupTreeView.Templates;
  40
  41 import com.google.gwt.dom.client.Style;
  42 import com.google.gwt.event.logical.shared.CloseEvent;
  43 import com.google.gwt.event.logical.shared.CloseHandler;
  44 import com.google.gwt.event.logical.shared.OpenEvent;
  45 import com.google.gwt.event.logical.shared.OpenHandler;
  46 import com.google.gwt.resources.client.ClientBundle;
  47 import com.google.gwt.resources.client.CssResource;
  48 import com.google.gwt.resources.client.ImageResource;
  49 import com.google.gwt.resources.client.CssResource.ImportedWithPrefix;
  50 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
  51 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  52 import com.google.gwt.user.client.ui.Composite;
  53 import com.google.gwt.user.client.ui.DisclosurePanel;
  54 import com.google.gwt.user.client.ui.HTML;
  55 import com.google.gwt.user.client.ui.IsWidget;
  56
  57 public class PithosDisclosurePanel extends Composite {
  58
  59         public interface Style extends CssResource {
  60                 String disclosurePanel();
  61
  62                 String header();
  63
  64                 String content();
  65         }
  66
  67         public interface Resources extends ClientBundle {
  68                 @Source("PithosDisclosurePanel.css")
  69                 Style pithosDisclosurePanelCss();
  70
  71                 @Source("upArrow.png")
  72                 ImageResource icon();
  73
  74                 @Source("upArrow.png")
  75                 ImageResource open();
  76
  77                 @Source("downArrow.png")
  78                 ImageResource closed();
  79         }
  80
  81         DisclosurePanel panel;
  82
  83         Resources resources;
  84
  85         public PithosDisclosurePanel(final Resources _resources, final String title, boolean open) {
  86                 resources = _resources;
  87                 resources.pithosDisclosurePanelCss().ensureInjected();
  88                 panel = new DisclosurePanel();
  89                 panel.addStyleName(resources.pithosDisclosurePanelCss().disclosurePanel());
  90                 panel.setHeader(createHeader(resources, title, open));
  91                 panel.setOpen(open);
  92                 panel.setAnimationEnabled(true);
  93                 panel.addOpenHandler(new OpenHandler<DisclosurePanel>() {
  94
  95                         @Override
  96                         public void onOpen(OpenEvent<DisclosurePanel> event) {
  97                                 panel.setHeader(createHeader(resources, title, true));
  98                         }
  99                 });
 100                 panel.addCloseHandler(new CloseHandler<DisclosurePanel>() {
 101
 102                         @Override
 103                         public void onClose(CloseEvent<DisclosurePanel> event) {
 104                                 panel.setHeader(createHeader(resources, title, false));
 105                         }
 106                 });
 107
 108                 initWidget(panel);
 109         }
 110
 111         HTML createHeader(Resources resources, String title, boolean open) {
 112         SafeHtmlBuilder sb = new SafeHtmlBuilder();
 113         sb.appendHtmlConstant(AbstractImagePrototype.create(resources.icon()).getHTML());
 114         sb.append(Templates.INSTANCE.nameSpan(title));
 115         sb.appendHtmlConstant(AbstractImagePrototype.create(open ? resources.open() : resources.closed()).getHTML());
 116         HTML header = new HTML(sb.toSafeHtml());
 117         header.addStyleName(resources.pithosDisclosurePanelCss().header());
 118         return header;
 119         }
 120
 121         public void add(IsWidget widget) {
 122                 panel.add(widget);
 123                 panel.getContent().removeStyleName("content");
 124                 panel.getContent().addStyleName(resources.pithosDisclosurePanelCss().content());
 125         }
 126 }