|
1
29
30 package nextapp.echo2.webcontainer.syncpeer;
31
32 import nextapp.echo2.app.Alignment;
33 import nextapp.echo2.app.Color;
34 import nextapp.echo2.app.Component;
35 import nextapp.echo2.app.Extent;
36 import nextapp.echo2.app.Font;
37 import nextapp.echo2.app.ImageReference;
38 import nextapp.echo2.app.Label;
39 import nextapp.echo2.app.update.ServerComponentUpdate;
40 import nextapp.echo2.webcontainer.ContainerInstance;
41 import nextapp.echo2.webcontainer.DomUpdateSupport;
42 import nextapp.echo2.webcontainer.RenderContext;
43 import nextapp.echo2.webcontainer.ComponentSynchronizePeer;
44 import nextapp.echo2.webcontainer.image.ImageRenderSupport;
45 import nextapp.echo2.webcontainer.propertyrender.AlignmentRender;
46 import nextapp.echo2.webcontainer.propertyrender.ColorRender;
47 import nextapp.echo2.webcontainer.propertyrender.FontRender;
48 import nextapp.echo2.webcontainer.propertyrender.ImageReferenceRender;
49 import nextapp.echo2.webcontainer.propertyrender.LayoutDirectionRender;
50 import nextapp.echo2.webrender.output.CssStyle;
51 import nextapp.echo2.webrender.servermessage.DomUpdate;
52 import nextapp.echo2.webrender.util.DomUtil;
53
54 import org.w3c.dom.Document  ;
55 import org.w3c.dom.DocumentFragment ;
56 import org.w3c.dom.Element ;
57 import org.w3c.dom.Node ;
58
59
65 public class LabelPeer
66 implements DomUpdateSupport, ImageRenderSupport, ComponentSynchronizePeer {
67
68 private static final Alignment DEFAULT_TEXT_POSITION = new Alignment(Alignment.TRAILING, Alignment.DEFAULT);
69 private static final Extent DEFAULT_ICON_TEXT_MARGIN = new Extent(3);
70 private static final String IMAGE_ID_ICON = "icon";
71
72
76 public void renderAdd(RenderContext rc, ServerComponentUpdate update,
77 String targetId, Component component) {
78 Element domAddElement = DomUpdate.renderElementAdd(rc.getServerMessage());
79 DocumentFragment htmlFragment = rc.getServerMessage().getDocument().createDocumentFragment();
80 renderHtml(rc, update, htmlFragment, component);
81 DomUpdate.renderElementAddContent(rc.getServerMessage(), domAddElement, targetId, htmlFragment);
82 }
83
84
87 public String getContainerId(Component child) {
88 throw new UnsupportedOperationException ("Component does not support children.");
89 }
90
91
94 public ImageReference getImage(Component component, String imageId) {
95 if (IMAGE_ID_ICON.equals(imageId)) {
96 return (ImageReference) component.getRenderProperty(Label.PROPERTY_ICON);
97 } else {
98 return null;
99 }
100 }
101
102
106 public void renderDispose(RenderContext rc, ServerComponentUpdate update, Component component) {
107 }
109
110
114 public void renderHtml(RenderContext rc, ServerComponentUpdate update, Node parentNode, Component component) {
115 Label label = (Label) component;
116 ImageReference icon = (ImageReference) label.getRenderProperty(Label.PROPERTY_ICON);
117 String text = (String ) label.getRenderProperty(Label.PROPERTY_TEXT);
118
119 if (icon != null) {
120 if (text != null) {
121 renderIconTextLabel(rc, parentNode, label);
122 } else {
123 renderIconLabel(rc, parentNode, label);
124 }
125 } else if (text != null) {
126 renderTextLabel(rc, parentNode, label);
127 }
128 }
129
130
137 private void renderIconLabel(RenderContext rc, Node parentNode, Label label) {
138 Element imgElement = ImageReferenceRender.renderImageReferenceElement(rc, this, label, IMAGE_ID_ICON);
139 imgElement.setAttribute("id", ContainerInstance.getElementId(label));
140 imgElement.setAttribute("style", "border:0px none;");
141
142 String toolTipText = (String ) label.getRenderProperty(Label.PROPERTY_TOOL_TIP_TEXT);
143 if (toolTipText != null) {
144 imgElement.setAttribute("title", toolTipText);
145 }
146
147 parentNode.appendChild(imgElement);
148 }
149
150
157 private void renderIconTextLabel(RenderContext rc, Node parentNode, Label label) {
158
162 Document document = rc.getServerMessage().getDocument();
163 String text = (String ) label.getRenderProperty(Label.PROPERTY_TEXT);
164 Alignment textPosition = (Alignment) label.getRenderProperty(Label.PROPERTY_TEXT_POSITION, DEFAULT_TEXT_POSITION);
165 Extent iconTextMargin = (Extent) label.getRenderProperty(Label.PROPERTY_ICON_TEXT_MARGIN,
166 DEFAULT_ICON_TEXT_MARGIN);
167 String elementId = ContainerInstance.getElementId(label);
168
169 int orientation = TriCellTableConfigurator.convertIconTextPositionToOrientation(textPosition, label);
170 TriCellTable tct = new TriCellTable(rc, document, elementId, orientation, iconTextMargin);
171 tct.addCellCssText("padding:0px;");
172
173 Element textTdElement = tct.getTdElement(0);
174 CssStyle textTdCssStyle = new CssStyle();
175 textTdCssStyle.setAttribute("border", "0px none");
176 if (Boolean.FALSE.equals(label.getRenderProperty(Label.PROPERTY_LINE_WRAP))) {
177 textTdCssStyle.setAttribute("white-space", "nowrap");
178 }
179 AlignmentRender.renderToStyle(textTdCssStyle, (Alignment) label.getRenderProperty(Label.PROPERTY_TEXT_ALIGNMENT), label);
180 textTdElement.setAttribute("style", textTdElement.getAttribute("style") + textTdCssStyle.renderInline());
181 DomUtil.setElementText(textTdElement, text);
182
183 Element imgElement = ImageReferenceRender.renderImageReferenceElement(rc, this, label, IMAGE_ID_ICON);
184 Element iconTdElement = tct.getTdElement(1);
185 iconTdElement.appendChild(imgElement);
186
187 Element tableElement = tct.getTableElement();
188 tableElement.setAttribute("id", elementId);
189
190 String toolTipText = (String ) label.getRenderProperty(Label.PROPERTY_TOOL_TIP_TEXT);
191 if (toolTipText != null) {
192 tableElement.setAttribute("title", toolTipText);
193 }
194
195 CssStyle cssStyle = new CssStyle();
196 LayoutDirectionRender.renderToStyle(cssStyle, label.getLayoutDirection(), label.getLocale());
197 ColorRender.renderToStyle(cssStyle, (Color) label.getRenderProperty(Label.PROPERTY_FOREGROUND),
198 (Color) label.getRenderProperty(Label.PROPERTY_BACKGROUND));
199 FontRender.renderToStyle(cssStyle, (Font) label.getRenderProperty(Label.PROPERTY_FONT));
200 cssStyle.setAttribute("border", "0px none");
201 cssStyle.setAttribute("border-collapse", "collapse");
202 tableElement.setAttribute("style", cssStyle.renderInline());
203
204 parentNode.appendChild(tableElement);
205 }
206
207
214 private void renderTextLabel(RenderContext rc, Node parentNode, Label label) {
215 Document document = rc.getServerMessage().getDocument();
216
217 Element spanElement = document.createElement("span");
218 spanElement.setAttribute("id", ContainerInstance.getElementId(label));
219 DomUtil.setElementText(spanElement, (String ) label.getRenderProperty(Label.PROPERTY_TEXT));
220
221 CssStyle cssStyle = new CssStyle();
222 if (Boolean.FALSE.equals(label.getRenderProperty(Label.PROPERTY_LINE_WRAP))) {
223 cssStyle.setAttribute("white-space", "nowrap");
224 }
225 ColorRender.renderToStyle(cssStyle, (Color) label.getRenderProperty(Label.PROPERTY_FOREGROUND),
226 (Color) label.getRenderProperty(Label.PROPERTY_BACKGROUND));
227 FontRender.renderToStyle(cssStyle, (Font) label.getRenderProperty(Label.PROPERTY_FONT));
228 if (cssStyle.hasAttributes()) {
229 spanElement.setAttribute("style", cssStyle.renderInline());
230 }
231
232 String toolTipText = (String ) label.getRenderProperty(Label.PROPERTY_TOOL_TIP_TEXT);
233 if (toolTipText != null) {
234 spanElement.setAttribute("title", toolTipText);
235 }
236
237 parentNode.appendChild(spanElement);
238 }
239
240
244 public boolean renderUpdate(RenderContext rc, ServerComponentUpdate update, String targetId) {
245 DomUpdate.renderElementRemove(rc.getServerMessage(), ContainerInstance.getElementId(update.getParent()));
246 renderAdd(rc, update, targetId, update.getParent());
247 return false;
248 }
249 }
250 |
Popular Tags |
Java API By Example, From Geeks To Geeks.