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

   1 /*\r
   2  * Copyright 2011 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.ui.AbstractImagePrototype;\r
  46 import com.google.gwt.user.client.ui.Composite;\r
  47 import com.google.gwt.user.client.ui.HTML;\r
  48 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  49 import com.google.gwt.user.client.ui.HasVerticalAlignment;\r
  50 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  51 import com.google.gwt.user.client.ui.SimplePanel;\r
  52 import com.google.gwt.user.client.ui.VerticalPanel;\r
  53 \r
  54 /**\r
  55  * A panel that displays various system messages.\r
  56  */\r
  57 public class MessagePanel extends Composite {\r
  58         /**\r
  59          * An image bundle for this widget's images.\r
  60          */\r
  61         public interface Images extends ClientBundle {\r
  62                 @Source("gr/grnet/pithos/resources/messagebox_info.png")\r
  63                 ImageResource info();\r
  64 \r
  65                 @Source("gr/grnet/pithos/resources/messagebox_warning.png")\r
  66                 ImageResource warn();\r
  67 \r
  68                 @Source("gr/grnet/pithos/resources/messagebox_critical.png")\r
  69                 ImageResource error();\r
  70         }\r
  71 \r
  72         /**\r
  73          * The widget's images.\r
  74          */\r
  75         public static Images images;\r
  76 \r
  77         /**\r
  78          * The system message to be displayed.\r
  79          */\r
  80         private HTML message;\r
  81 \r
  82         /**\r
  83          * The panel that contains the messages.\r
  84          */\r
  85         private HorizontalPanel inner;\r
  86 \r
  87         /**\r
  88          * The panel that enables special effects for this widget.\r
  89          */\r
  90         protected SimplePanel simplePanel;\r
  91 \r
  92         /**\r
  93          * A link to send feedBack about the error.\r
  94          */\r
  95         private HTML feedbackLink;\r
  96         /**\r
  97          * The widget's constructor.\r
  98          *\r
  99          * @param newImages a bundle that provides the images for this widget\r
 100          */\r
 101         public MessagePanel(final Pithos app, final Images newImages) {\r
 102                 images = newImages;\r
 103                 simplePanel = new SimplePanel();\r
 104                 simplePanel.setStyleName("effectPanel");\r
 105                 \r
 106                 inner = new HorizontalPanel();\r
 107                 inner.setStyleName("effectPanel-inner");\r
 108                 inner.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);\r
 109                 inner.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);\r
 110                 \r
 111                 message = new HTML("&nbsp;");\r
 112                 message.addClickHandler(new ClickHandler() {\r
 113 \r
 114                         @Override\r
 115                         public void onClick(ClickEvent event) {\r
 116                                 FadeOut anim = new FadeOut(simplePanel){\r
 117 \r
 118                                         @Override\r
 119                                         protected void onComplete() {\r
 120                                                 super.onComplete();\r
 121                                                 hideMessage();\r
 122                                         }\r
 123                                 };\r
 124                                 anim.run(500);\r
 125                         }\r
 126                 });\r
 127                 inner.add(message);\r
 128                 inner.setCellVerticalAlignment(message, HasVerticalAlignment.ALIGN_MIDDLE);\r
 129 \r
 130                 VerticalPanel linkPanel = new VerticalPanel();\r
 131                 linkPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);\r
 132                 /**\r
 133                  * A link to clear the displayed message.\r
 134                  */\r
 135                 HTML clearMessageLink = new HTML("<a class='pithos-clearMessage' href='javascript:;'>Clear</a>");\r
 136                 clearMessageLink.addClickHandler(new ClickHandler() {\r
 137 \r
 138                         @Override\r
 139                         public void onClick(ClickEvent event) {\r
 140                                 FadeOut anim = new FadeOut(simplePanel){\r
 141                                         @Override\r
 142                                         protected void onComplete() {\r
 143                                                 super.onComplete();\r
 144                                                 hideMessage();\r
 145                                         }\r
 146                                 };\r
 147                                 anim.run(500);\r
 148                         }\r
 149                 });\r
 150                 linkPanel.add(clearMessageLink);\r
 151 \r
 152                 feedbackLink = new HTML("<a class='pithos-clearMessage' href='javascript:;'>Send feedback</a>");\r
 153                 feedbackLink.addClickHandler(new ClickHandler() {\r
 154                         \r
 155                         @Override\r
 156                         public void onClick(ClickEvent event) {\r
 157                                 new FeedbackDialog(app, app.getErrorData()).center();\r
 158                         }\r
 159                 });\r
 160                 feedbackLink.setVisible(false);\r
 161                 linkPanel.add(feedbackLink);\r
 162 \r
 163                 inner.add(linkPanel);\r
 164                 simplePanel.add(inner);\r
 165                 \r
 166                 initWidget(simplePanel);\r
 167         }\r
 168 \r
 169         /**\r
 170          * Display an error message.\r
 171          *\r
 172          * @param msg the message to display\r
 173          */\r
 174         public void displayError(final String msg) {\r
 175                 GWT.log(msg, null);\r
 176                 message.setHTML("<table class='pithos-errorMessage'><tr><td>" + AbstractImagePrototype.create(images.error()).getHTML() + "</td><td>" + msg + "</td></tr></table>");\r
 177                 feedbackLink.setVisible(true);\r
 178                 setVisible(true);\r
 179                 FadeIn anim = new FadeIn(simplePanel);\r
 180                 anim.run(500);\r
 181         }\r
 182 \r
 183         /**\r
 184          * Display a warning message.\r
 185          *\r
 186          * @param msg the message to display\r
 187          */\r
 188         public void displayWarning(final String msg) {\r
 189                 message.setHTML("<table class='pithos-warnMessage'><tr><td>" + AbstractImagePrototype.create(images.warn()).getHTML() + "</td><td>" + msg + "</td></tr></table>");\r
 190                 feedbackLink.setVisible(false);\r
 191                 setVisible(true);\r
 192                 FadeIn anim = new FadeIn(simplePanel);\r
 193                 anim.run(500);\r
 194         }\r
 195 \r
 196         /**\r
 197          * Display an informational message.\r
 198          *\r
 199          * @param msg the message to display\r
 200          */\r
 201         public void displayInformation(final String msg) {\r
 202                 message.setHTML("<table class='pithos-infoMessage'><tr><td>" + AbstractImagePrototype.create(images.info()).getHTML() + "</td><td>" + msg + "</td></tr></table>");\r
 203                 feedbackLink.setVisible(false);\r
 204                 setVisible(true);\r
 205                 FadeIn anim = new FadeIn(simplePanel);\r
 206                 anim.run(500);\r
 207         }\r
 208 \r
 209         /**\r
 210          * Clear the displayed message and hide the panel.\r
 211          */\r
 212         public void hideMessage() {\r
 213                 message = new HTML("&nbsp;");\r
 214                 this.setVisible(false);\r
 215         }\r
 216 \r
 217 }\r