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

   1 /*\r
   2  * Copyright 2011-2012 GRNET S.A. All rights reserved.\r
   3  *\r
   4  * Redistribution and use in source and binary forms, with or\r
   5  * without modification, are permitted provided that the following\r
   6  * conditions are met:\r
   7  *\r
   8  *   1. Redistributions of source code must retain the above\r
   9  *      copyright notice, this list of conditions and the following\r
  10  *      disclaimer.\r
  11  *\r
  12  *   2. Redistributions in binary form must reproduce the above\r
  13  *      copyright notice, this list of conditions and the following\r
  14  *      disclaimer in the documentation and/or other materials\r
  15  *      provided with the distribution.\r
  16  *\r
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS\r
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR\r
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\r
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\r
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF\r
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED\r
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN\r
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
  28  * POSSIBILITY OF SUCH DAMAGE.\r
  29  *\r
  30  * The views and conclusions contained in the software and\r
  31  * documentation are those of the authors and should not be\r
  32  * interpreted as representing official policies, either expressed\r
  33  * or implied, of GRNET S.A.\r
  34  */\r
  35 package gr.grnet.pithos.web.client;\r
  36 \r
  37 import gr.grnet.pithos.web.client.animation.FadeIn;\r
  38 import gr.grnet.pithos.web.client.animation.FadeOut;\r
  39 \r
  40 import com.google.gwt.core.client.GWT;\r
  41 import com.google.gwt.event.dom.client.ClickEvent;\r
  42 import com.google.gwt.event.dom.client.ClickHandler;\r
  43 import com.google.gwt.resources.client.ClientBundle;\r
  44 import com.google.gwt.resources.client.ImageResource;\r
  45 import com.google.gwt.user.client.Window;\r
  46 import com.google.gwt.user.client.ui.AbstractImagePrototype;\r
  47 import com.google.gwt.user.client.ui.Composite;\r
  48 import com.google.gwt.user.client.ui.HTML;\r
  49 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  50 import com.google.gwt.user.client.ui.HasVerticalAlignment;\r
  51 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  52 import com.google.gwt.user.client.ui.SimplePanel;\r
  53 import com.google.gwt.user.client.ui.VerticalPanel;\r
  54 \r
  55 /**\r
  56  * A panel that displays various system messages.\r
  57  */\r
  58 public class MessagePanel extends Composite {\r
  59         /**\r
  60          * An image bundle for this widget's images.\r
  61          */\r
  62         public interface Images extends ClientBundle {\r
  63                 @Source("gr/grnet/pithos/resources/messagebox_info.png")\r
  64                 ImageResource info();\r
  65 \r
  66                 @Source("gr/grnet/pithos/resources/messagebox_warning.png")\r
  67                 ImageResource warn();\r
  68 \r
  69                 @Source("gr/grnet/pithos/resources/messagebox_critical.png")\r
  70                 ImageResource error();\r
  71         }\r
  72 \r
  73         /**\r
  74          * The widget's images.\r
  75          */\r
  76         public static Images images;\r
  77 \r
  78         /**\r
  79          * The system message to be displayed.\r
  80          */\r
  81         private HTML message;\r
  82 \r
  83         /**\r
  84          * The panel that contains the messages.\r
  85          */\r
  86         private HorizontalPanel inner;\r
  87 \r
  88         /**\r
  89          * The panel that enables special effects for this widget.\r
  90          */\r
  91         protected SimplePanel simplePanel;\r
  92 \r
  93         /**\r
  94          * A link to send feedBack about the error.\r
  95          */\r
  96         private HTML feedbackLink;\r
  97         \r
  98         Pithos app;\r
  99         \r
 100         /**\r
 101          * The widget's constructor.\r
 102          *\r
 103          * @param newImages a bundle that provides the images for this widget\r
 104          */\r
 105         public MessagePanel(Pithos _app, final Images newImages) {\r
 106                 app = _app;\r
 107                 images = newImages;\r
 108                 simplePanel = new SimplePanel();\r
 109                 simplePanel.setStyleName("effectPanel");\r
 110                 \r
 111                 inner = new HorizontalPanel();\r
 112                 inner.setStyleName("effectPanel-inner");\r
 113                 inner.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);\r
 114                 inner.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);\r
 115                 \r
 116                 message = new HTML("&nbsp;");\r
 117                 message.addClickHandler(new ClickHandler() {\r
 118 \r
 119                         @Override\r
 120                         public void onClick(ClickEvent event) {\r
 121                                 FadeOut anim = new FadeOut(simplePanel){\r
 122 \r
 123                                         @Override\r
 124                                         protected void onComplete() {\r
 125                                                 super.onComplete();\r
 126                                                 hideMessage();\r
 127                                         }\r
 128                                 };\r
 129                                 anim.run(500);\r
 130                         }\r
 131                 });\r
 132                 inner.add(message);\r
 133                 inner.setCellVerticalAlignment(message, HasVerticalAlignment.ALIGN_MIDDLE);\r
 134 \r
 135                 VerticalPanel linkPanel = new VerticalPanel();\r
 136                 linkPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);\r
 137                 /**\r
 138                  * A link to clear the displayed message.\r
 139                  */\r
 140                 HTML clearMessageLink = new HTML("<a class='pithos-clearMessage' href='javascript:;'>Clear</a>");\r
 141                 clearMessageLink.addClickHandler(new ClickHandler() {\r
 142 \r
 143                         @Override\r
 144                         public void onClick(ClickEvent event) {\r
 145                                 FadeOut anim = new FadeOut(simplePanel){\r
 146                                         @Override\r
 147                                         protected void onComplete() {\r
 148                                                 super.onComplete();\r
 149                                                 hideMessage();\r
 150                                         }\r
 151                                 };\r
 152                                 anim.run(500);\r
 153                         }\r
 154                 });\r
 155                 linkPanel.add(clearMessageLink);\r
 156 \r
 157                 feedbackLink = new HTML("<a class='pithos-clearMessage' href='javascript:;'>Send feedback</a>");\r
 158                 feedbackLink.addClickHandler(new ClickHandler() {\r
 159                         \r
 160                         @Override\r
 161                         public void onClick(ClickEvent event) {\r
 162                                 new FeedbackDialog(app, app.getErrorData()).center();\r
 163                         }\r
 164                 });\r
 165                 feedbackLink.setVisible(false);\r
 166                 linkPanel.add(feedbackLink);\r
 167 \r
 168                 inner.add(linkPanel);\r
 169                 simplePanel.add(inner);\r
 170                 \r
 171                 initWidget(simplePanel);\r
 172         }\r
 173 \r
 174         /**\r
 175          * Display an error message.\r
 176          *\r
 177          * @param msg the message to display\r
 178          */\r
 179         public void displayError(final String msg) {\r
 180                 GWT.log(msg, null);\r
 181                 message.setHTML("<table class='pithos-errorMessage'><tr><td>" + AbstractImagePrototype.create(images.error()).getHTML() + "</td><td>" + msg + "</td></tr></table>");\r
 182                 feedbackLink.setVisible(true);\r
 183                 setVisible(true);\r
 184                 FadeIn anim = new FadeIn(simplePanel);\r
 185                 anim.run(500);\r
 186         }\r
 187 \r
 188         /**\r
 189          * Display a warning message.\r
 190          *\r
 191          * @param msg the message to display\r
 192          */\r
 193         public void displayWarning(final String msg) {\r
 194                 message.setHTML("<table class='pithos-warnMessage'><tr><td>" + AbstractImagePrototype.create(images.warn()).getHTML() + "</td><td>" + msg + "</td></tr></table>");\r
 195                 feedbackLink.setVisible(false);\r
 196                 setVisible(true);\r
 197                 FadeIn anim = new FadeIn(simplePanel);\r
 198                 anim.run(500);\r
 199         }\r
 200 \r
 201         /**\r
 202          * Display an informational message.\r
 203          *\r
 204          * @param msg the message to display\r
 205          */\r
 206         public void displayInformation(final String msg) {\r
 207                 message.setHTML("<table class='pithos-infoMessage'><tr><td>" + AbstractImagePrototype.create(images.info()).getHTML() + "</td><td>" + msg + "</td></tr></table>");\r
 208                 feedbackLink.setVisible(false);\r
 209                 setVisible(true);\r
 210                 FadeIn anim = new FadeIn(simplePanel);\r
 211                 anim.run(500);\r
 212         }\r
 213 \r
 214         /**\r
 215          * Clear the displayed message and hide the panel.\r
 216          */\r
 217         public void hideMessage() {\r
 218                 message = new HTML("&nbsp;");\r
 219                 this.setVisible(false);\r
 220                 app.onWindowResized(Window.getClientHeight());\r
 221         }\r
 222 }\r