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Diff Revisions 947 vs 948 for /trunk/GWT_Sandbox/FormEngine/src/com/temp/client/foundation/widget/upload/UploadWidget.java

Diff revisions: vs.
  @@ -1,49 +1,30 @@
1 1 package com.temp.client.foundation.widget.upload;
2 2
3 - import com.temp.shared.utils.StringUtils;
4 -
5 - import com.google.gwt.dom.client.Style;
6 - import com.google.gwt.dom.client.Style.Cursor;
7 - import com.google.gwt.dom.client.Style.Overflow;
8 - import com.google.gwt.dom.client.Style.Position;
9 - import com.google.gwt.dom.client.Style.Unit;
10 - import com.google.gwt.dom.client.Style.Visibility;
3 + import com.google.gwt.dom.client.*;
4 + import com.google.gwt.dom.client.Style.*;
11 5 import com.google.gwt.user.client.Element;
12 - import com.google.gwt.user.client.Timer;
13 - import com.google.gwt.user.client.Window;
14 - import com.google.gwt.user.client.ui.ButtonBase;
15 - import com.google.gwt.user.client.ui.Composite;
16 - import com.google.gwt.user.client.ui.FileUpload;
17 - import com.google.gwt.user.client.ui.FlowPanel;
18 - import com.google.gwt.user.client.ui.FormPanel;
19 - import com.google.gwt.user.client.ui.HasHorizontalAlignment;
20 - import com.google.gwt.user.client.ui.HorizontalPanel;
21 - import com.google.gwt.user.client.ui.Image;
22 - import com.google.gwt.user.client.ui.IsWidget;
23 - import com.google.gwt.user.client.ui.Label;
24 - import com.google.gwt.user.client.ui.PopupPanel;
25 - import com.google.gwt.user.client.ui.SimplePanel;
26 - import com.google.gwt.user.client.ui.VerticalPanel;
27 - import com.google.gwt.user.client.ui.Widget;
6 + import com.google.gwt.user.client.*;
7 + import com.google.gwt.user.client.ui.*;
8 + import com.temp.shared.utils.*;
28 9
29 10 public class UploadWidget extends Composite implements IsWidget {
30 11 public interface Callback {
31 12 public Image createBusyImage();
32 13
33 - public Widget createWaitingMessageWidget(Widget secondsRemaining);
14 + public Widget createWaitingMessageWidget( Widget secondsRemaining );
34 15
35 - public void requestingUpload(String filename);
16 + public void requestingUpload( String filename );
36 17
37 - public void timeout(String filename);
18 + public void timeout( String filename );
38 19
39 - public void parseResponse(String fileName, String pHtmlResponse);
20 + public void parseResponse( String fileName, String pHtmlResponse );
40 21 }
41 22
42 23 private static int instance = 1;
43 24
44 25 private final FileUpload upload = createFileUploadWidget();
45 - private final FormPanel formPanel = createFormPanel(upload);
46 - private final SimplePanel viewPort = createViewPort(createFormFloater(formPanel));
26 + private final FormPanel formPanel = createFormPanel( upload );
27 + private final SimplePanel viewPort = createViewPort( createFormFloater( formPanel ) );
47 28 private final ButtonBase illusionaryClickWidget, removeButton;
48 29 private final Widget sizingWidget;
49 30
  @@ -57,45 +38,45 @@
57 38 private Timer timer;
58 39 private boolean sized = false;
59 40
60 - public UploadWidget(ButtonBase illusionaryClickWidget, ButtonBase removeButton, int secondsToWait, Callback callback) {
41 + public UploadWidget( ButtonBase illusionaryClickWidget, ButtonBase removeButton, int secondsToWait, Callback callback ) {
61 42 this.illusionaryClickWidget = illusionaryClickWidget;
62 43 this.removeButton = removeButton;
63 44 this.secondsToWait = secondsToWait;
64 45 this.callback = callback;
65 46 externallyEnabled = illusionaryClickWidget.isEnabled();
66 - sizingWidget = createConstrainer(illusionaryClickWidget);
67 - initWidget(createStylingDiv("UploadWidget", createConstrainer(createFlowPanel(sizingWidget, viewPort))));
47 + sizingWidget = createConstrainer( illusionaryClickWidget );
48 + initWidget( createStylingDiv( "UploadWidget", createConstrainer( createFlowPanel( sizingWidget, viewPort ) ) ) );
68 49
69 - formPanel.addSubmitCompleteHandler(new FormPanel.SubmitCompleteHandler() {
50 + formPanel.addSubmitCompleteHandler( new FormPanel.SubmitCompleteHandler() {
70 51 @Override
71 - public void onSubmitComplete(FormPanel.SubmitCompleteEvent event) {
72 - submitResponse(StringUtils.noEmpty(event.getResults()));
52 + public void onSubmitComplete( FormPanel.SubmitCompleteEvent event ) {
53 + submitResponse( StringUtils.noEmpty( event.getResults() ) );
73 54 }
74 - });
55 + } );
75 56 }
76 57
77 - public void setServletPath(String url) {
78 - servletPath = StringUtils.noEmpty(url);
58 + public void setServletPath( String url ) {
59 + servletPath = StringUtils.noEmpty( url );
79 60 }
80 61
81 - public void setRemoveButtonEnabled(boolean enable) {
82 - enableRemoveButton(removeButtonExternallyEnabled = enable);
62 + public void setRemoveButtonEnabled( boolean enable ) {
63 + enableRemoveButton( removeButtonExternallyEnabled = enable );
83 64 }
84 65
85 - public void setEnabled(boolean enable) {
86 - enableWidgets(externallyEnabled = enable);
66 + public void setEnabled( boolean enable ) {
67 + enableWidgets( externallyEnabled = enable );
87 68 }
88 69
89 - private void enableWidgets(boolean enable) {
90 - enableRemoveButton(enable);
70 + private void enableWidgets( boolean enable ) {
71 + enableRemoveButton( enable );
91 72
92 73 enable &= externallyEnabled;
93 - illusionaryClickWidget.setEnabled(enable);
94 - upload.setEnabled(enable);
74 + illusionaryClickWidget.setEnabled( enable );
75 + upload.setEnabled( enable );
95 76 }
96 77
97 - private void enableRemoveButton(boolean enable) {
98 - removeButton.setEnabled(enable && externallyEnabled && removeButtonExternallyEnabled);
78 + private void enableRemoveButton( boolean enable ) {
79 + removeButton.setEnabled( enable && externallyEnabled && removeButtonExternallyEnabled );
99 80 }
100 81
101 82 @Override
  @@ -111,7 +92,7 @@
111 92 }
112 93
113 94 private void stopTimer() {
114 - if (timer != null) {
95 + if ( timer != null ) {
115 96 timer.cancel();
116 97 timer = null;
117 98 }
  @@ -123,133 +104,133 @@
123 104 @Override
124 105 public void run() {
125 106 sized = sized || size();
126 - String filename = StringUtils.noEmpty(upload.getFilename());
127 - if (filename != null) {
107 + String filename = StringUtils.noEmpty( upload.getFilename() );
108 + if ( filename != null ) {
128 109 stopTimer();
129 - submitForm(lastSubmittedFileName = filename);
110 + submitForm( lastSubmittedFileName = filename );
130 111 formPanel.reset();
131 112 }
132 113 }
133 - }).scheduleRepeating(250);
114 + }).scheduleRepeating( 250 );
134 115 }
135 116
136 117 private boolean size() {
137 118 int width = sizingWidget.getOffsetWidth();
138 119 int height = sizingWidget.getOffsetHeight();
139 - if ((width < 16) || (height < 16)) {
120 + if ( (width < 16) || (height < 16) ) {
140 121 return false;
141 122 }
142 - viewPort.setSize(width + "px", height + "px");
123 + viewPort.setSize( width + "px", height + "px" );
143 124 return true;
144 125 }
145 126
146 127 private void resetUploadWidget() {
147 - enableWidgets(true);
128 + enableWidgets( true );
148 129 startTimer();
149 130 }
150 131
151 - private void submitForm(String filename) {
152 - System.out.println("UploadWidget.submitForm: " + filename + " to " + servletPath);
153 - if (servletPath == null) {
154 - throw new IllegalStateException("No Servlet Path Set");
132 + private void submitForm( String filename ) {
133 + System.out.println( "UploadWidget.submitForm: " + filename + " to " + servletPath );
134 + if ( servletPath == null ) {
135 + throw new IllegalStateException( "No Servlet Path Set" );
155 136 }
156 - callback.requestingUpload(filename);
157 - formPanel.setAction(servletPath);
137 + callback.requestingUpload( filename );
138 + formPanel.setAction( servletPath );
158 139 formPanel.submit();
159 - enableWidgets(false);
140 + enableWidgets( false );
160 141 showBusy();
161 142 }
162 143
163 144 private void timeout() {
164 145 hideBusy();
165 146 resetUploadWidget();
166 - callback.timeout(lastSubmittedFileName);
147 + callback.timeout( lastSubmittedFileName );
167 148 }
168 149
169 - private void submitResponse(String htmlResponse) {
150 + private void submitResponse( String htmlResponse ) {
170 151 hideBusy();
171 - if ((htmlResponse != null) || (lastSubmittedFileName != null)) {
152 + if ( (htmlResponse != null) || (lastSubmittedFileName != null) ) {
172 153 resetUploadWidget();
173 154 String fileName = lastSubmittedFileName;
174 155 lastSubmittedFileName = null;
175 - callback.parseResponse(fileName, htmlResponse);
156 + callback.parseResponse( fileName, htmlResponse );
176 157 }
177 158 }
178 159
179 - private static Widget createConstrainer(Widget widget) {
160 + private static Widget createConstrainer( Widget widget ) {
180 161 HorizontalPanel constrainer = new HorizontalPanel();
181 - constrainer.add(widget);
162 + constrainer.add( widget );
182 163 return constrainer;
183 164 }
184 165
185 - private static Widget createStylingDiv(String styleName, Widget widget) {
166 + private static Widget createStylingDiv( String styleName, Widget widget ) {
186 167 SimplePanel divBasePanel = new SimplePanel();
187 - divBasePanel.addStyleName(styleName);
188 - divBasePanel.setWidget(widget);
168 + divBasePanel.addStyleName( styleName );
169 + divBasePanel.setWidget( widget );
189 170 return divBasePanel;
190 171 }
191 172
192 - private static Widget createFlowPanel(Widget widget1, Widget widget2) {
173 + private static Widget createFlowPanel( Widget widget1, Widget widget2 ) {
193 174 FlowPanel panel = new FlowPanel();
194 - panel.getElement().getStyle().setPosition(Position.RELATIVE);
195 - panel.add(widget1);
196 - panel.add(widget2);
175 + panel.getElement().getStyle().setPosition( Position.RELATIVE );
176 + panel.add( widget1 );
177 + panel.add( widget2 );
197 178 return panel;
198 179 }
199 180
200 - private static SimplePanel createViewPort(Widget widget) {
181 + private static SimplePanel createViewPort( Widget widget ) {
201 182 SimplePanel viewPort = new SimplePanel();
202 183 Element element = viewPort.getElement();
203 184 Style style = element.getStyle();
204 - style.setPosition(Position.ABSOLUTE);
205 - style.setLeft(0, Unit.PX);
206 - style.setTop(0, Unit.PX);
207 - style.setOverflow(Overflow.HIDDEN);
208 - viewPort.setWidget(widget);
209 - viewPort.setSize("1px", "1px");
185 + style.setPosition( Position.ABSOLUTE );
186 + style.setLeft( 0, Unit.PX );
187 + style.setTop( 0, Unit.PX );
188 + style.setOverflow( Overflow.HIDDEN );
189 + viewPort.setWidget( widget );
190 + viewPort.setSize( "1px", "1px" );
210 191 return viewPort;
211 192 }
212 193
213 - private static SimplePanel createFormFloater(Widget widget) {
194 + private static SimplePanel createFormFloater( Widget widget ) {
214 195 SimplePanel panel = new SimplePanel();
215 - panel.setSize("1000px", "400px");
196 + panel.setSize( "1000px", "400px" );
216 197 Style style = panel.getElement().getStyle();
217 - style.setPosition(Position.RELATIVE);
218 - style.setLeft(-600, Unit.PX);
219 - style.setTop(-5, Unit.PX);
220 - panel.setWidget(createConstrainer(widget));
198 + style.setPosition( Position.RELATIVE );
199 + style.setLeft( -600, Unit.PX );
200 + style.setTop( -5, Unit.PX );
201 + panel.setWidget( createConstrainer( widget ) );
221 202 return panel;
222 203 }
223 204
224 - private static FormPanel createFormPanel(FileUpload upload) {
205 + private static FormPanel createFormPanel( FileUpload upload ) {
225 206 FormPanel form = new FormPanel();
226 - form.add(upload);
207 + form.add( upload );
227 208 Style style = form.getElement().getStyle();
228 - style.setMargin(0, Unit.PX);
229 - style.setPadding(0, Unit.PX);
209 + style.setMargin( 0, Unit.PX );
210 + style.setPadding( 0, Unit.PX );
230 211 // Because we're going to add a FileUpload widget, we'll need to set the
231 212 // form to use the POST method, and multipart MIME encoding.
232 - form.setEncoding(FormPanel.ENCODING_MULTIPART);
233 - form.setMethod(FormPanel.METHOD_POST);
213 + form.setEncoding( FormPanel.ENCODING_MULTIPART );
214 + form.setMethod( FormPanel.METHOD_POST );
234 215 return form;
235 216 }
236 217
237 218 private static FileUpload createFileUploadWidget() {
238 219 FileUpload upload = new FileUpload();
239 - upload.setName("UploadWidget" + instance++);
240 - upload.getElement().setAttribute("size", "1");
241 - upload.setSize("1000px", "400px");
220 + upload.setName( "UploadWidget" + instance++ );
221 + upload.getElement().setAttribute( "size", "1" );
222 + upload.setSize( "1000px", "400px" );
242 223 Style style = upload.getElement().getStyle();
243 - style.setMargin(0, Unit.PX);
244 - style.setPadding(0, Unit.PX);
245 - style.setBorderWidth(0, Unit.PX);
246 - style.setFontSize(200, Unit.PX);
247 - style.setOpacity(0); // Tested w/ FireFox & IE8!
224 + style.setMargin( 0, Unit.PX );
225 + style.setPadding( 0, Unit.PX );
226 + style.setBorderWidth( 0, Unit.PX );
227 + style.setFontSize( 200, Unit.PX );
228 + style.setOpacity( 0 ); // Tested w/ FireFox & IE8!
248 229 return upload;
249 230 }
250 231
251 232 protected void hideBusy() {
252 - if (busyPopup != null) {
233 + if ( busyPopup != null ) {
253 234 busyPopup.hide();
254 235 busyPopup = null;
255 236 }
  @@ -257,14 +238,14 @@
257 238
258 239 protected void showBusy() {
259 240 hideBusy();
260 - (busyPopup = new OurBusyPopup()).setPopupPositionAndShow(new PopupPanel.PositionCallback() {
241 + (busyPopup = new OurBusyPopup()).setPopupPositionAndShow( new PopupPanel.PositionCallback() {
261 242 @Override
262 - public void setPosition(int offsetWidth, int offsetHeight) {
243 + public void setPosition( int offsetWidth, int offsetHeight ) {
263 244 int left = (Window.getClientWidth() - offsetWidth) / 2;
264 245 int top = (Window.getClientHeight() - offsetHeight) / 2;
265 - busyPopup.setPopupPosition(left, top);
246 + busyPopup.setPopupPosition( left, top );
266 247 }
267 - });
248 + } );
268 249 }
269 250
270 251 private OurBusyPopup busyPopup;
  @@ -273,28 +254,28 @@
273 254 private Widget messageWidget;
274 255 private boolean messageShowing = false;
275 256 private int secondsRemaining = secondsToWait;
276 - private Label secondsRemainingLabel = new Label("" + secondsRemaining);
257 + private Label secondsRemainingLabel = new Label( "" + secondsRemaining );
277 258 private long started = System.currentTimeMillis();
278 259 private float currentOpacity = 0;
279 260 private Timer timer;
280 261
281 262 private OurBusyPopup() {
282 - setModal(true);
283 - setGlassEnabled(true);
284 - getGlassElement().getStyle().setBackgroundColor("#fff");
285 - getGlassElement().getStyle().setCursor(Cursor.WAIT);
286 - getGlassElement().getStyle().setOpacity(currentOpacity);
263 + setModal( true );
264 + setGlassEnabled( true );
265 + getGlassElement().getStyle().setBackgroundColor( "#fff" );
266 + getGlassElement().getStyle().setCursor( Cursor.WAIT );
267 + getGlassElement().getStyle().setOpacity( currentOpacity );
287 268
288 269 VerticalPanel outerpanel = new VerticalPanel();
289 - outerpanel.setStyleName("UploadWidgetBusyContainer");
290 - outerpanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);
270 + outerpanel.setStyleName( "UploadWidgetBusyContainer" );
271 + outerpanel.setHorizontalAlignment( HasHorizontalAlignment.ALIGN_CENTER );
291 272 Image busyImage = callback.createBusyImage();
292 - if (busyImage != null) {
293 - outerpanel.add(busyImage);
273 + if ( busyImage != null ) {
274 + outerpanel.add( busyImage );
294 275 }
295 - outerpanel.add(createStylingDiv("UploadWidgetBusyMessage", callback.createWaitingMessageWidget(secondsRemainingLabel)));
296 - outerpanel.getElement().getStyle().setVisibility(Visibility.HIDDEN);
297 - setWidget(messageWidget = outerpanel);
276 + outerpanel.add( createStylingDiv( "UploadWidgetBusyMessage", callback.createWaitingMessageWidget( secondsRemainingLabel ) ) );
277 + outerpanel.getElement().getStyle().setVisibility( Visibility.HIDDEN );
278 + setWidget( messageWidget = outerpanel );
298 279 startTimer();
299 280 }
300 281
  @@ -305,7 +286,7 @@
305 286 }
306 287
307 288 private void stopTimer() {
308 - if (timer != null) {
289 + if ( timer != null ) {
309 290 timer.cancel();
310 291 timer = null;
311 292 }
  @@ -316,26 +297,26 @@
316 297 (timer = new Timer() {
317 298 @Override
318 299 public void run() {
319 - if (currentOpacity < 0.75) {
320 - getGlassElement().getStyle().setOpacity(currentOpacity += 0.025);
300 + if ( currentOpacity < 0.75 ) {
301 + getGlassElement().getStyle().setOpacity( currentOpacity += 0.025 );
321 302 }
322 303 int secondsPassed = (int) ((System.currentTimeMillis() - started) / 1000);
323 - if ((secondsPassed > 1) && !messageShowing) {
304 + if ( (secondsPassed > 1) && !messageShowing ) {
324 305 messageShowing = true;
325 - messageWidget.getElement().getStyle().setVisibility(Visibility.VISIBLE);
306 + messageWidget.getElement().getStyle().setVisibility( Visibility.VISIBLE );
326 307 }
327 308 int calcSecondsRemaining = secondsToWait - secondsPassed;
328 - if (calcSecondsRemaining < 1) {
309 + if ( calcSecondsRemaining < 1 ) {
329 310 stopTimer();
330 311 timeout();
331 312 return;
332 313 }
333 - if (calcSecondsRemaining != secondsRemaining) {
314 + if ( calcSecondsRemaining != secondsRemaining ) {
334 315 secondsRemaining = calcSecondsRemaining;
335 - secondsRemainingLabel.setText(Integer.toString(secondsRemaining));
316 + secondsRemainingLabel.setText( Integer.toString( secondsRemaining ) );
336 317 }
337 318 }
338 - }).scheduleRepeating(100);
319 + }).scheduleRepeating( 100 );
339 320 }
340 321 }
341 322 }

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