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@@ -7,6 +7,11 @@ |
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public class UploadWidget extends Composite implements IsWidget |
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{ |
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private static final String BUSY_IMAGE_URL = "common/Money.gif"; |
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private static final int SECONDS_TO_WAIT = 30; |
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private static final String[] BUSY_PRE_SECONDS_REMAINING_MESSAGE = {"Checking Certificate Validity,", "this can take a while..."}; |
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private static final String[] BUSY_POST_SECONDS_REMAINING_MESSAGE = {"seconds until timeout."}; |
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private static int instance = 1; |
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private final FileUpload upload = createFileUploadWidget(); |
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@@ -249,29 +254,114 @@ |
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protected void hideBusy() |
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{ |
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busyPopup.hide(); |
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busyPopup = null; |
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if ( busyPopup != null ) |
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{ |
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busyPopup.hide(); |
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busyPopup = null; |
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} |
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} |
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protected void showBusy() |
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{ |
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if ( busyPopup == null ) |
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hideBusy(); |
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(busyPopup = new OurBusyPopup()).setPopupPositionAndShow( new PopupPanel.PositionCallback() |
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{ |
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busyPopup = new OurBusyPopup(); |
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} |
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busyPopup.show(); |
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@Override |
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public void setPosition( int offsetWidth, int offsetHeight ) |
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{ |
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int left = (Window.getClientWidth() - offsetWidth) / 2; |
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int top = (Window.getClientHeight() - offsetHeight) / 2; |
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busyPopup.setPopupPosition( left, top ); |
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} |
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} ); |
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} |
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private OurBusyPopup busyPopup; |
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private class OurBusyPopup extends PopupPanel |
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{ |
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private Widget messageWidget; |
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private boolean messageShowing = false; |
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private int secondsRemaining = SECONDS_TO_WAIT; |
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private Label secondsRemainingLabel = new Label( "" + secondsRemaining ); |
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private long started = System.currentTimeMillis(); |
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private float currentOpacity = 0; |
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private Timer timer; |
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private OurBusyPopup() |
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{ |
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setModal( true ); |
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setGlassEnabled( true ); |
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getGlassElement().getStyle().setOpacity( 0.5 ); |
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setWidget( new Image( "common/Money.gif" ) ); |
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getGlassElement().getStyle().setBackgroundColor( "#fff" ); |
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getGlassElement().getStyle().setCursor( Style.Cursor.WAIT ); |
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getGlassElement().getStyle().setOpacity( currentOpacity ); |
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VerticalPanel panel = new VerticalPanel(); |
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panel.setStyleName( "UploadWidgetBusyMessage" ); |
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panel.setHorizontalAlignment( HasHorizontalAlignment.ALIGN_CENTER ); |
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panel.add( new Image( BUSY_IMAGE_URL ) ); |
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panel.add( new HTML( " " ) ); |
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for ( String line : BUSY_PRE_SECONDS_REMAINING_MESSAGE ) |
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{ |
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panel.add( new Label( line ) ); |
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} |
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panel.add( secondsRemainingLabel ); |
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for ( String line : BUSY_POST_SECONDS_REMAINING_MESSAGE ) |
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{ |
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panel.add( new Label( line ) ); |
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} |
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panel.getElement().getStyle().setVisibility( Style.Visibility.HIDDEN ); |
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setWidget( messageWidget = panel ); |
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startTimer(); |
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} |
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@Override |
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public void hide() |
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{ |
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stopTimer(); |
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super.hide(); |
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} |
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private void stopTimer() |
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{ |
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if ( timer != null ) |
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{ |
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timer.cancel(); |
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timer = null; |
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} |
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} |
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private void startTimer() |
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{ |
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stopTimer(); |
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(timer = new Timer() |
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{ |
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@Override |
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public void run() |
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{ |
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if ( currentOpacity < 0.75 ) |
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{ |
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getGlassElement().getStyle().setOpacity( currentOpacity += 0.01 ); |
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} |
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int secondsPassed = (int) ((System.currentTimeMillis() - started) / 1000); |
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if ( (secondsPassed > 1) && !messageShowing ) |
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{ |
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messageShowing = true; |
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messageWidget.getElement().getStyle().setVisibility( Style.Visibility.VISIBLE ); |
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} |
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int calcSecondsRemaining = SECONDS_TO_WAIT - secondsPassed; |
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if ( calcSecondsRemaining < 1 ) |
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{ |
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stopTimer(); |
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submitResponse( "Error: Timeout" ); |
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return; |
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} |
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if ( calcSecondsRemaining != secondsRemaining ) |
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{ |
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secondsRemainingLabel.setText( (secondsRemaining = calcSecondsRemaining) + "" ); |
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} |
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} |
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}).scheduleRepeating( 100 ); |
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} |
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} |
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} |
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