Java tutorial
/* This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 Servoy BV This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program; if not, see http://www.gnu.org/licenses or write to the Free Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 */ package com.servoy.j2db.server.headlessclient.dataui; import java.awt.Color; import java.awt.Cursor; import java.awt.Dimension; import java.awt.Font; import java.awt.Point; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.NoSuchElementException; import javax.swing.border.Border; import javax.swing.border.TitledBorder; import org.apache.wicket.Component; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.IAjaxCallDecorator; import org.apache.wicket.ajax.calldecorator.AjaxCallDecorator; import org.apache.wicket.markup.MarkupStream; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.model.IModel; import org.apache.wicket.model.Model; import org.mozilla.javascript.Undefined; import com.servoy.base.scripting.api.IJSEvent.EventType; import com.servoy.j2db.ControllerUndoManager; import com.servoy.j2db.FormController; import com.servoy.j2db.IApplication; import com.servoy.j2db.IScriptExecuter; import com.servoy.j2db.IView; import com.servoy.j2db.dataprocessing.DataAdapterList; import com.servoy.j2db.dataprocessing.IDisplay; import com.servoy.j2db.dataprocessing.IDisplayData; import com.servoy.j2db.dataprocessing.IFoundSetInternal; import com.servoy.j2db.dataprocessing.IRecordInternal; import com.servoy.j2db.dataprocessing.Record; import com.servoy.j2db.dnd.DRAGNDROP; import com.servoy.j2db.dnd.JSDNDEvent; import com.servoy.j2db.persistence.Form; import com.servoy.j2db.persistence.IDataProviderLookup; import com.servoy.j2db.persistence.IPersist; import com.servoy.j2db.server.headlessclient.WebForm; import com.servoy.j2db.server.headlessclient.dnd.DraggableBehavior; import com.servoy.j2db.ui.DataRendererOnRenderWrapper; import com.servoy.j2db.ui.IComponent; import com.servoy.j2db.ui.IDataRenderer; import com.servoy.j2db.ui.IProviderStylePropertyChanges; import com.servoy.j2db.ui.IStylePropertyChanges; import com.servoy.j2db.ui.ISupportOnRenderCallback; import com.servoy.j2db.ui.ISupportRowStyling; import com.servoy.j2db.ui.runtime.IRuntimeComponent; import com.servoy.j2db.util.ComponentFactoryHelper; import com.servoy.j2db.util.Debug; import com.servoy.j2db.util.IDelegate; import com.servoy.j2db.util.IStyleRule; import com.servoy.j2db.util.IStyleSheet; import com.servoy.j2db.util.PersistHelper; import com.servoy.j2db.util.Utils; /** * The web implementation of the {@link IDataRenderer} * * @author jcompagner */ public class WebDataRenderer extends WebMarkupContainer implements IDataRenderer, IProviderStylePropertyChanges { private static final long serialVersionUID = 1L; private Dimension size = new Dimension(0, 0); private Point location = new Point(0, 0); // private boolean visible; private String tooltiptext; // private Cursor cursor; private boolean opaque; private Border border; private Font font; private Color foreground; private Color background; // private final IApplication application; private DataAdapterList dataAdapterList; // private final Set globalFields = new HashSet(); private HashMap<IPersist, IDisplay> fieldComponents = new HashMap<IPersist, IDisplay>(); private final ChangesRecorder jsChangeRecorder = new ChangesRecorder( TemplateGenerator.DEFAULT_FIELD_BORDER_SIZE, TemplateGenerator.DEFAULT_FIELD_PADDING); private IView parentView; private final String formPartName; private FormController dragNdropController; private final ISupportOnRenderCallback dataRendererOnRenderWrapper; /** * @param id */ public WebDataRenderer(String id, String formPartName, final IApplication app) { super(id); // application = app; add(StyleAttributeModifierModel.INSTANCE); add(TooltipAttributeModifier.INSTANCE); setOutputMarkupPlaceholderTag(true); this.formPartName = formPartName; dataRendererOnRenderWrapper = new DataRendererOnRenderWrapper(this); add(new StyleAppendingModifier(new Model<String>() { private static final long serialVersionUID = 1L; @Override public String getObject() { WebForm container = findParent(WebForm.class); if (container != null && container.getBorder() instanceof TitledBorder) { int offset = ComponentFactoryHelper.getTitledBorderHeight(container.getBorder()); return "top: " + offset + "px;"; } return ""; //$NON-NLS-1$ } }) { @Override public boolean isEnabled(Component component) { if (WebDataRenderer.this.getParent().get(0) != WebDataRenderer.this) return false; WebForm container = component.findParent(WebForm.class); if (container != null && container.getBorder() instanceof TitledBorder) { return super.isEnabled(component); } return false; } }); add(new ServoyAjaxEventBehavior("onclick", null, true) { @Override protected void onEvent(AjaxRequestTarget target) { if (app.getFoundSetManager().getEditRecordList().isEditing()) { app.getFoundSetManager().getEditRecordList().stopEditing(false); WebEventExecutor.generateResponse(target, getPage()); } } @Override protected IAjaxCallDecorator getAjaxCallDecorator() { return new AjaxCallDecorator() { private static final long serialVersionUID = 1L; @Override public CharSequence decorateScript(CharSequence script) { return "if ((event.target || event.srcElement) == this){ " + script + " }"; //$NON-NLS-1$ } }; } }); } public void setParentView(IView parentView) { this.parentView = parentView; } /** * @see com.servoy.j2db.ui.IDataRenderer#getDataAdapterList() */ public DataAdapterList getDataAdapterList() { return dataAdapterList; } public void addDisplayComponent(IPersist obj, IDisplay comp) { fieldComponents.put(obj, comp); } void createDataAdapter(IApplication app, IDataProviderLookup dataProviderLookup, IScriptExecuter el, ControllerUndoManager undoManager) throws Exception { dataAdapterList = new DataAdapterList(app, dataProviderLookup, fieldComponents, el.getFormController(), null, undoManager); //make it really fields only HashMap<IPersist, IDisplay> f = new HashMap<IPersist, IDisplay>(); Iterator<Map.Entry<IPersist, IDisplay>> it = fieldComponents.entrySet().iterator(); while (it.hasNext()) { Map.Entry<IPersist, IDisplay> element = it.next(); if (element.getValue() instanceof IDisplayData) { // String id = ((IDisplayData)element.getValue()).getDataProviderID(); // if (dataProviderLookup.getDataProvider(id) instanceof ScriptVariable) // { // globalFields.add(element.getValue()); // } f.put(element.getKey(), element.getValue()); } } fieldComponents = f; } /** * @see com.servoy.j2db.ui.IDataRenderer#setAllNonFieldsEnabled(boolean) */ public void setAllNonFieldsEnabled(boolean b) { // TODO Auto-generated method stub } /** * @see com.servoy.j2db.ui.IDataRenderer#setAllNonRowFieldsEnabled(boolean) */ public void setAllNonRowFieldsEnabled(boolean b) { // TODO Auto-generated method stub } /** * @see com.servoy.j2db.ui.IDataRenderer#stopUIEditing() */ public boolean stopUIEditing(boolean looseFocus) { if (dataAdapterList != null) return dataAdapterList.stopUIEditing(looseFocus); return true; } /** * @see com.servoy.j2db.ui.IDataRenderer#setName(java.lang.String) */ public void setName(String name) { // ignore id can't be set in web } /** * @see com.servoy.j2db.ui.IComponent#getName() */ public String getName() { return getId(); } public void destroy() { if (dataAdapterList != null) { dataAdapterList.destroy(); dataAdapterList = null; } if (getRequestCycle() != null) { removeAll(); if (getParent() != null) { remove(); } } } public void setComponentVisible(boolean visible) { // this.visible = visible; } public void setLocation(Point location) { this.location = location; } public void setSize(Dimension size) { this.size = size; } public void setForeground(Color foreground) { this.foreground = foreground; } public void setBackground(Color background) { this.background = background; } public void setFont(Font font) { this.font = font; } public void setBorder(Border border) { this.border = border; } public void setOpaque(boolean opaque) { this.opaque = opaque; } public void setCursor(Cursor cursor) { // this.cursor = cursor; } public void setToolTipText(String tooltiptext) { if (Utils.stringIsEmpty(tooltiptext)) { this.tooltiptext = null; } else { this.tooltiptext = tooltiptext; } } /** * @see com.servoy.j2db.ui.IComponent#getToolTipText() */ public String getToolTipText() { return tooltiptext; } public Point getLocation() { return location; } public Dimension getSize() { return size; } public void notifyVisible(boolean b, List<Runnable> invokeLaterRunnables) { if (dataAdapterList != null) { //we just forward the call dataAdapterList.notifyVisible(b, invokeLaterRunnables); } } public void refreshRecord(IRecordInternal record) { IModel<?> model = getDefaultModel(); if (model != null) { model.detach(); } if (dataAdapterList != null) { dataAdapterList.setRecord(record, true); } DataAdapterList.setDataRendererComponentsRenderState(this, record); if (getOnRenderComponent().getRenderEventExecutor().hasRenderCallback()) { jsChangeRecorder.setChanged(); } } public Color getBackground() { return background; } public Border getBorder() { return border; } public Font getFont() { return font; } public Color getForeground() { return foreground; } public boolean isOpaque() { return opaque; } public void setComponentEnabled(boolean enabled) { setEnabled(enabled); } @SuppressWarnings("nls") public Iterator<? extends IComponent> getComponentIterator() { final Iterator<? extends Component> wicketIterator = iterator(); Iterator<? extends IComponent> iterator = new Iterator<IComponent>() { private IComponent next; public boolean hasNext() { if (next != null) return true; while (wicketIterator.hasNext()) { Object comp = wicketIterator.next(); Object delegate = comp; while (delegate instanceof IDelegate<?> && !(delegate instanceof IComponent)) { delegate = ((IDelegate<?>) delegate).getDelegate(); } if (delegate instanceof IComponent) { next = (IComponent) delegate; return true; } Debug.error( "Component found which is not an IComponent " + comp + " for a datarenderer " + this, new RuntimeException(comp.getClass().toString())); } return false; } public IComponent next() { if (next == null) { hasNext(); } if (next == null) { throw new NoSuchElementException("Component iterator of " + this + " has no more elements"); } IComponent returnValue = next; next = null; return returnValue; } public void remove() { wicketIterator.remove(); } }; return iterator; } public void add(IComponent c, String name) { //ignore } public void remove(IComponent c) { //ignore } @Override protected void onBeforeRender() { super.onBeforeRender(); if (getBgcolor() == null) { String parentViewBGColor = getParentViewBgColor(); if (parentViewBGColor != null) { setBgcolor(parentViewBGColor); } } dataRendererOnRenderWrapper.getRenderEventExecutor().fireOnRender(false); } @Override protected void onRender(final MarkupStream markupStream) { super.onRender(markupStream); jsChangeRecorder.setRendered(); } public IStylePropertyChanges getStylePropertyChanges() { String parentViewBackground = getParentViewBgColor(); if (parentViewBackground != null) { if (!parentViewBackground.equals(getBgcolor())) { setBgcolor(parentViewBackground); } } return jsChangeRecorder; } /* * bgcolor as string--------------------------------------------------- */ private String getBgcolor() { return PersistHelper.createColorString(background); } private void setBgcolor(String bgcolor) { background = PersistHelper.createColor(bgcolor); jsChangeRecorder.setBgcolor(bgcolor); } private String getParentViewBgColor() { if (parentView != null) { String rowBGColorCalculation = parentView.getRowBGColorScript(); IRecordInternal rec = (IRecordInternal) getDefaultModelObject(); if (rec != null && rec.getRawData() != null) { IFoundSetInternal parentFoundSet = rec.getParentFoundSet(); int recIndex = parentFoundSet.getSelectedIndex(); boolean isSelected = recIndex == parentFoundSet.getRecordIndex(rec); if (rowBGColorCalculation != null) { Object bg_color = null; if (rec.getRawData().containsCalculation(rowBGColorCalculation)) { // data renderer is always on the selected index. bg_color = parentFoundSet.getCalculationValue(rec, rowBGColorCalculation, Utils.arrayMerge( new Object[] { new Integer(recIndex), new Boolean(isSelected), null, null, Boolean.FALSE }, Utils.parseJSExpressions(parentView.getRowBGColorArgs())), null); } else { try { FormController currentForm = dataAdapterList.getFormController(); bg_color = currentForm.executeFunction(rowBGColorCalculation, Utils.arrayMerge( new Object[] { new Integer(parentFoundSet.getSelectedIndex()), new Boolean(isSelected), null, null, currentForm.getName(), rec, Boolean.FALSE }, Utils.parseJSExpressions(parentView.getRowBGColorArgs())), true, null, true, null); } catch (Exception ex) { Debug.error(ex); } } if (bg_color != null && !(bg_color.toString().trim().length() == 0) && !(bg_color instanceof Undefined)) { return bg_color.toString(); } } if (parentView instanceof ISupportRowStyling) { ISupportRowStyling parentViewWithRowStyling = (ISupportRowStyling) parentView; IStyleSheet ss = parentViewWithRowStyling.getRowStyleSheet(); IStyleRule style = isSelected ? parentViewWithRowStyling.getRowSelectedStyle() : null; if (style != null && style.getAttributeCount() == 0) style = null; if (style == null) { style = (recIndex % 2 == 0) ? parentViewWithRowStyling.getRowEvenStyle() : parentViewWithRowStyling.getRowOddStyle(); } if (ss != null && style != null) { return PersistHelper.createColorString(ss.getBackground(style)); } } } } return null; } public String getFormPartName() { return this.formPartName; } public int onDrag(JSDNDEvent event) { Form form = dragNdropController.getForm(); int onDragID = form.getOnDragMethodID(); if (onDragID > 0) { Object dragReturn = dragNdropController.executeFunction(Integer.toString(onDragID), new Object[] { event }, false, null, false, "onDragMethodID"); //$NON-NLS-1$ if (dragReturn instanceof Number) return ((Number) dragReturn).intValue(); } return DRAGNDROP.NONE; } public boolean onDragOver(JSDNDEvent event) { Form form = dragNdropController.getForm(); int onDragOverID = form.getOnDragOverMethodID(); if (onDragOverID > 0) { Object dragOverReturn = dragNdropController.executeFunction(Integer.toString(onDragOverID), new Object[] { event }, false, null, false, "onDragOverMethodID"); //$NON-NLS-1$ if (dragOverReturn instanceof Boolean) return ((Boolean) dragOverReturn).booleanValue(); } return form.getOnDropMethodID() > 0; } public boolean onDrop(JSDNDEvent event) { Form form = dragNdropController.getForm(); int onDropID = form.getOnDropMethodID(); if (onDropID > 0) { Object dropHappened = dragNdropController.executeFunction(Integer.toString(onDropID), new Object[] { event }, false, null, false, "onDropMethodID"); //$NON-NLS-1$ if (dropHappened instanceof Boolean) return ((Boolean) dropHappened).booleanValue(); } return false; } public void onDragEnd(JSDNDEvent event) { Form form = dragNdropController.getForm(); int onDragEndID = form.getOnDragEndMethodID(); if (onDragEndID > 0) { dragNdropController.executeFunction(Integer.toString(onDragEndID), new Object[] { event }, false, null, false, "onDragEndMethodID"); //$NON-NLS-1$ } } public IComponent getDragSource(Point xy) { // don't need this, ignore return null; } public String getDragFormName() { return getDataAdapterList().getFormController().getName(); } public boolean isGridView() { return false; } public IRecordInternal getDragRecord(Point xy) { return getDataAdapterList().getState(); } public int getYOffset() { return yOffset; } private int yOffset; public void initDragNDrop(FormController formController, int clientDesignYOffset) { this.yOffset = clientDesignYOffset; Form form = formController.getForm(); if (form.getOnDragMethodID() > 0 || form.getOnDragEndMethodID() > 0 || form.getOnDragOverMethodID() > 0 || form.getOnDropMethodID() > 0) { this.dragNdropController = formController; if (dragNdropController != null) addDragNDropBehavior(); } } public FormController getDragNDropController() { return dragNdropController; } private void addDragNDropBehavior() { DraggableBehavior dragBehavior = new DraggableBehavior() { private IComponent hoverComponent; private boolean isHoverAcceptDrop; @Override protected void onDragEnd(String id, int x, int y, int m, AjaxRequestTarget ajaxRequestTarget) { if (getCurrentDragOperation() != DRAGNDROP.NONE) { JSDNDEvent event = WebDataRenderer.this.createScriptEvent(EventType.onDragEnd, getDragComponent(), null, m); event.setData(getDragData()); event.setDataMimeType(getDragDataMimeType()); event.setDragResult(getDropResult() ? getCurrentDragOperation() : DRAGNDROP.NONE); WebDataRenderer.this.onDragEnd(event); } super.onDragEnd(id, x, y, m, ajaxRequestTarget); } @Override protected boolean onDragStart(final String id, int x, int y, int m, AjaxRequestTarget ajaxRequestTarget) { IComponent comp = getBindedComponentChild(id); JSDNDEvent event = WebDataRenderer.this.createScriptEvent(EventType.onDrag, comp, new Point(x, y), m); setDropResult(false); int dragOp = WebDataRenderer.this.onDrag(event); if (dragOp == DRAGNDROP.NONE) return false; setCurrentDragOperation(dragOp); setDragComponent(comp); setDragData(event.getData(), event.getDataMimeType()); hoverComponent = null; isHoverAcceptDrop = false; return true; } @Override protected void onDrop(String id, final String targetid, int x, int y, int m, AjaxRequestTarget ajaxRequestTarget) { if (getCurrentDragOperation() != DRAGNDROP.NONE) { IComponent comp = getBindedComponentChild(targetid); if (hoverComponent == comp && !isHoverAcceptDrop) return; WebDataRenderer renderer = WebDataRenderer.this; JSDNDEvent event = renderer.createScriptEvent(EventType.onDrop, comp, new Point(x, y), m); event.setData(getDragData()); event.setDataMimeType(getDragDataMimeType()); setDropResult(renderer.onDrop(event)); } } // private ISupportDragNDrop testTarget(ISupportDragNDrop ddComp, JSEvent event) // { // if (event.js_getSource() instanceof SpecialTabPanel) // { // SpecialTabPanel tabPanel = (SpecialTabPanel)event.js_getSource(); // Component selectedComponent = tabPanel.getEnclosingComponent().getSelectedComponent(); // if (selectedComponent instanceof FormLookupPanel) // { // FormController formControler = ((FormLookupPanel)selectedComponent).getFormPanel(); // event.setSource(null); // event.setFormName(formControler.getName()); // event.setElementName(null); // return (ISupportDragNDrop)formControler.getViewComponent(); // } // } // return ddComp; // } @Override protected void onDropHover(String id, final String targetid, int m, AjaxRequestTarget ajaxRequestTarget) { if (getCurrentDragOperation() != DRAGNDROP.NONE) { IComponent comp = getBindedComponentChild(targetid); JSDNDEvent event = WebDataRenderer.this.createScriptEvent(EventType.onDragOver, comp, null, m); event.setData(getDragData()); event.setDataMimeType(getDragDataMimeType()); isHoverAcceptDrop = WebDataRenderer.this.onDragOver(event); hoverComponent = comp; } } @Override public IComponent getBindedComponentChild(final String childId) { IComponent comp = super.getBindedComponentChild(childId); if (comp == null) comp = WebDataRenderer.this; return comp; } }; dragBehavior.setUseProxy(true); add(dragBehavior); } private JSDNDEvent createScriptEvent(EventType type, IComponent dragSource, Point xy, int modifiers) { JSDNDEvent jsEvent = new JSDNDEvent(); jsEvent.setType(type); jsEvent.setFormName(getDragFormName()); IRecordInternal dragRecord = getDragRecord(xy); if (dragRecord instanceof Record) jsEvent.setRecord((Record) dragRecord); if (dragSource instanceof IDataRenderer) { IDataRenderer dr = (IDataRenderer) dragSource; FormController fct = dr.getDataAdapterList().getFormController(); jsEvent.setSource(fct.getFormScope()); } else { jsEvent.setSource(dragSource); if (dragSource != null) { String dragSourceName = dragSource.getName(); if (dragSourceName == null) dragSourceName = dragSource.getId(); jsEvent.setElementName(dragSourceName); } } if (xy != null) jsEvent.setLocation(xy); jsEvent.setModifiers(modifiers); return jsEvent; } /* * @see com.servoy.j2db.ui.ISupportOnRenderWrapper#getOnRenderComponent() */ public ISupportOnRenderCallback getOnRenderComponent() { return dataRendererOnRenderWrapper; } /* * @see com.servoy.j2db.ui.ISupportOnRenderWrapper#getOnRenderElementType() */ public String getOnRenderElementType() { return IRuntimeComponent.FORM; } /* * @see com.servoy.j2db.ui.ISupportOnRenderWrapper#getOnRenderToString() */ public String getOnRenderToString() { return dataAdapterList != null ? dataAdapterList.getFormController().getForm().toString() : super.toString(); } }