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; import java.awt.Insets; import java.awt.Point; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Set; import org.apache.wicket.Component; import org.apache.wicket.Component.IVisitor; import org.apache.wicket.MarkupContainer; import org.apache.wicket.Request; import org.apache.wicket.RequestCycle; import org.apache.wicket.Session; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.markup.html.IHeaderResponse; import org.mozilla.javascript.ScriptRuntime; import com.servoy.base.scripting.api.IJSEvent.EventType; import com.servoy.j2db.DesignModeCallbacks; import com.servoy.j2db.FormController; import com.servoy.j2db.dnd.DRAGNDROP; import com.servoy.j2db.scripting.IScriptableProvider; import com.servoy.j2db.scripting.JSEvent; import com.servoy.j2db.scripting.info.CLIENTDESIGN; import com.servoy.j2db.server.headlessclient.dataui.AbstractServoyDefaultAjaxBehavior; import com.servoy.j2db.server.headlessclient.dataui.TemplateGenerator; import com.servoy.j2db.server.headlessclient.dataui.WebDataCalendar; import com.servoy.j2db.server.headlessclient.dataui.WebDataRenderer; import com.servoy.j2db.server.headlessclient.dataui.WebEventExecutor; import com.servoy.j2db.server.headlessclient.dnd.DraggableBehavior; import com.servoy.j2db.server.headlessclient.yui.YUILoader; import com.servoy.j2db.ui.IComponent; import com.servoy.j2db.ui.IProviderStylePropertyChanges; import com.servoy.j2db.ui.ISupportWebBounds; import com.servoy.j2db.ui.ITabPanel; import com.servoy.j2db.ui.runtime.IRuntimeComponent; import com.servoy.j2db.ui.runtime.IRuntimeInputComponent; import com.servoy.j2db.util.Utils; /** * @author jcompagner * @author jblok */ @SuppressWarnings("nls") public class DesignModeBehavior extends AbstractServoyDefaultAjaxBehavior { public static final String ACTION_RESIZE = "aResize"; public static final String ACTION_SELECT = "aSelect"; public static final String PARAM_RESIZE_HEIGHT = "resizeHeight"; public static final String PARAM_RESIZE_WIDTH = "resizeWidth"; public static final String PARAM_IS_DBLCLICK = "isDblClick"; public static final String PARAM_IS_RIGHTCLICK = "isRightClick"; public static final String PARAM_IS_CTRL_KEY = "isCtrlKey"; private DesignModeCallbacks callback; private FormController controller; private IComponent onDragComponent; private final HashMap<IComponent, String> onSelectComponents = new HashMap<IComponent, String>(); /** * @see org.apache.wicket.ajax.AbstractDefaultAjaxBehavior#renderHead(org.apache.wicket.markup.html.IHeaderResponse) */ @Override public void renderHead(IHeaderResponse response) { super.renderHead(response); YUILoader.renderResize(response); final ArrayList<Component> markupIds = new ArrayList<Component>(); final ArrayList<Component> dropMarkupIds = new ArrayList<Component>(); ((MarkupContainer) getComponent()).visitChildren(IComponent.class, new IVisitor<Component>() { public Object component(Component component) { if (!(component instanceof WebDataRenderer)) { markupIds.add(component); if (component instanceof ITabPanel || component instanceof WebDataCalendar) { return IVisitor.CONTINUE_TRAVERSAL_BUT_DONT_GO_DEEPER; } } else if (component instanceof WebDataRenderer) { dropMarkupIds.add(component); } return IVisitor.CONTINUE_TRAVERSAL; } }); if (markupIds.size() > 0) { boolean webAnchorsEnabled = Utils.getAsBoolean( ((WebClientSession) Session.get()).getWebClient().getRuntimeProperties().get("enableAnchors")); //WebClientSession webClientSession = (WebClientSession)getSession(); //WebClient webClient = webClientSession.getWebClient(); ArrayList<String> selectedComponentsId = new ArrayList<String>(); StringBuilder sb = new StringBuilder(markupIds.size() * 10); sb.append("Servoy.ClientDesign.attach({"); for (int i = 0; i < markupIds.size(); i++) { Component component = markupIds.get(i); Object clientdesign_handles = null; if (component instanceof IScriptableProvider && ((IScriptableProvider) component).getScriptObject() instanceof IRuntimeComponent) { IRuntimeComponent sbmc = (IRuntimeComponent) ((IScriptableProvider) component) .getScriptObject(); if (sbmc.getName() == null) continue; //skip, elements with no name are not usable in CD clientdesign_handles = sbmc.getClientProperty(CLIENTDESIGN.HANDLES); Object clientdesign_selectable = sbmc.getClientProperty(CLIENTDESIGN.SELECTABLE); if (clientdesign_selectable != null && !Utils.getAsBoolean(clientdesign_selectable)) continue; //skip } String padding = "0px 0px 0px 0px"; //$NON-NLS-1$ if (component instanceof ISupportWebBounds) { Insets p = ((ISupportWebBounds) component).getPaddingAndBorder(); if (p != null) padding = "0px " + (p.left + p.right) + "px " + (p.bottom + p.top) + "px 0px"; } boolean editable = false; if (component instanceof IScriptableProvider && ((IScriptableProvider) component).getScriptObject() instanceof IRuntimeInputComponent) { editable = ((IRuntimeInputComponent) ((IScriptableProvider) component).getScriptObject()) .isEditable(); } String compId; if (webAnchorsEnabled && component instanceof IScriptableProvider && ((IScriptableProvider) component).getScriptObject() instanceof IRuntimeComponent && needsWrapperDivForAnchoring( ((IRuntimeComponent) ((IScriptableProvider) component).getScriptObject()) .getElementType(), editable)) { compId = component.getMarkupId() + TemplateGenerator.WRAPPER_SUFFIX; } else { compId = component.getMarkupId(); } sb.append(compId); if (component instanceof IComponent) { Iterator<IComponent> selectedComponentsIte = onSelectComponents.keySet().iterator(); IComponent c; while (selectedComponentsIte.hasNext()) { c = selectedComponentsIte.next(); if (c.getName().equals(((IComponent) component).getName())) { onSelectComponents.put(c, compId); selectedComponentsId.add(compId); break; } } } sb.append(":['"); sb.append(padding); sb.append("'"); if (clientdesign_handles instanceof Object[]) { sb.append(",["); Object[] array = (Object[]) clientdesign_handles; for (Object element : array) { sb.append('\''); sb.append(ScriptRuntime.escapeString(element.toString())); sb.append("',"); } sb.setLength(sb.length() - 1); //rollback last comma sb.append("]"); } sb.append("],"); } sb.setLength(sb.length() - 1); //rollback last comma sb.append("},'" + getCallbackUrl() + "')"); if (selectedComponentsId.size() > 0) { for (int i = 0; i < selectedComponentsId.size(); i++) { sb.append(";Servoy.ClientDesign.selectedElementId[").append(i).append("]='") .append(selectedComponentsId.get(i)).append("';"); } sb.append("Servoy.ClientDesign.reattach();"); } response.renderOnDomReadyJavascript(sb.toString()); // if (dropMarkupIds.size() > 0) // { // StringBuilder attachDrop = new StringBuilder(); // attachDrop.append("attachDrop(["); // for (int i = 0; i < dropMarkupIds.size(); i++) // { // Component component = dropMarkupIds.get(i); // attachDrop.append("'"); // attachDrop.append(component.getMarkupId()); // attachDrop.append("',"); // } // attachDrop.setLength(attachDrop.length() - 1); // attachDrop.append("])"); // response.renderOnDomReadyJavascript(attachDrop.toString()); // } } } private boolean needsWrapperDivForAnchoring(String type, boolean editable) { // this needs to be in sync with WebAnchoringHelper.needsWrapperDivForAnchoring(Field field) // and TemplateGenerator.isButton(GraphicalComponent label) return IRuntimeComponent.PASSWORD.equals(type) || IRuntimeComponent.TEXT_AREA.equals(type) || IRuntimeComponent.COMBOBOX.equals(type) || IRuntimeComponent.TYPE_AHEAD.equals(type) || IRuntimeComponent.TEXT_FIELD.equals(type) || (IRuntimeComponent.HTML_AREA.equals(type) && editable) || (IRuntimeComponent.LISTBOX.equals(type)) || (IRuntimeComponent.MULTISELECT_LISTBOX.equals(type)) || IRuntimeComponent.BUTTON.equals(type); } /** * @see org.apache.wicket.ajax.AbstractDefaultAjaxBehavior#respond(org.apache.wicket.ajax.AjaxRequestTarget) */ @Override protected void respond(AjaxRequestTarget target) { Request request = RequestCycle.get().getRequest(); String action = request.getParameter(DraggableBehavior.PARAM_ACTION); String id = extractId(request.getParameter(DraggableBehavior.PARAM_DRAGGABLE_ID)); if (id != null) { final String finalId = id.endsWith(TemplateGenerator.WRAPPER_SUFFIX) ? id.substring(0, id.length() - 8) : id; MarkupContainer comp = (MarkupContainer) getComponent(); Component child = (Component) comp.visitChildren(Component.class, new IVisitor<Component>() { public Object component(Component component) { String markupId = component.getMarkupId(); if (finalId.equals(markupId)) return component; return IVisitor.CONTINUE_TRAVERSAL; } }); if (action != null) { int height = stripUnitPart(request.getParameter(PARAM_RESIZE_HEIGHT)); int width = stripUnitPart(request.getParameter(PARAM_RESIZE_WIDTH)); int x = stripUnitPart(request.getParameter(DraggableBehavior.PARAM_X)); int y = stripUnitPart(request.getParameter(DraggableBehavior.PARAM_Y)); if (action.equals(ACTION_SELECT)) { if (!(child instanceof IComponent)) onSelectComponents.clear(); else { boolean isSelectionRemove = false; if (!Boolean.parseBoolean(request.getParameter(PARAM_IS_CTRL_KEY))) onSelectComponents.clear(); else { isSelectionRemove = onSelectComponents.remove(child) != null; } IComponent[] param = onSelectComponents.keySet() .toArray(new IComponent[isSelectionRemove ? onSelectComponents.size() : onSelectComponents.size() + 1]); if (!isSelectionRemove) param[onSelectComponents.size()] = (IComponent) child; Object ret = callback .executeOnSelect(getJSEvent(EventType.action, 0, new Point(x, y), param)); if (ret instanceof Boolean && !((Boolean) ret).booleanValue()) { onSelectComponents.clear(); } else { if (!isSelectionRemove) onSelectComponents.put((IComponent) child, id); StringBuilder idsArray = new StringBuilder("new Array("); Iterator<String> idsIte = onSelectComponents.values().iterator(); while (idsIte.hasNext()) { idsArray.append('\'').append(idsIte.next()).append('\''); if (idsIte.hasNext()) idsArray.append(','); } idsArray.append(')'); target.appendJavascript( "Servoy.ClientDesign.attachElements(" + idsArray.toString() + ");"); } if (Boolean.parseBoolean(request.getParameter(PARAM_IS_RIGHTCLICK))) { callback.executeOnRightClick( getJSEvent(EventType.rightClick, 0, new Point(x, y), param)); } else if (Boolean.parseBoolean(request.getParameter(PARAM_IS_DBLCLICK))) { callback.executeOnDblClick( getJSEvent(EventType.doubleClick, 0, new Point(x, y), param)); } } WebEventExecutor.generateResponse(target, getComponent().getPage()); target.appendJavascript("Servoy.ClientDesign.clearClickTimer();"); return; } if (child instanceof IComponent) { if (!onSelectComponents.containsKey(child)) { onSelectComponents.put((IComponent) child, id); } if (action.equals(ACTION_RESIZE)) { if (width != -1 && height != -1) { if (child instanceof ISupportWebBounds) { Insets paddingAndBorder = ((ISupportWebBounds) child).getPaddingAndBorder(); if (paddingAndBorder != null) { height += paddingAndBorder.bottom + paddingAndBorder.top; width += paddingAndBorder.left + paddingAndBorder.right; } } if (child instanceof IScriptableProvider) { ((IRuntimeComponent) ((IScriptableProvider) child).getScriptObject()).setSize(width, height); ((IRuntimeComponent) ((IScriptableProvider) child).getScriptObject()).setLocation(x, y); } if (child instanceof IProviderStylePropertyChanges) ((IProviderStylePropertyChanges) child).getStylePropertyChanges().setRendered(); } callback.executeOnResize(getJSEvent(EventType.onDrop, 0, new Point(x, y), new IComponent[] { (IComponent) child })); } else if (action.equals(DraggableBehavior.ACTION_DRAG_START)) { Object onDragAllowed = callback.executeOnDrag(getJSEvent(EventType.onDrag, 0, new Point(x, y), onSelectComponents.keySet().toArray(new IComponent[onSelectComponents.size()]))); if ((onDragAllowed instanceof Boolean && !((Boolean) onDragAllowed).booleanValue()) || (onDragAllowed instanceof Number && ((Number) onDragAllowed).intValue() == DRAGNDROP.NONE)) { onDragComponent = null; } else { onDragComponent = (IComponent) child; } WebEventExecutor.generateResponse(target, getComponent().getPage()); return; } else { if (child == onDragComponent) { if (x != -1 && y != -1) { ((IRuntimeComponent) ((IScriptableProvider) child).getScriptObject()).setLocation(x, y); if (child instanceof IProviderStylePropertyChanges) { // test if it is wrapped if ((child).getParent() instanceof WrapperContainer) { // call for the changes on the wrapper container so that it will copy the right values over WrapperContainer wrapper = (WrapperContainer) (child).getParent(); wrapper.getStylePropertyChanges().getChanges(); wrapper.getStylePropertyChanges().setRendered(); } ((IProviderStylePropertyChanges) child).getStylePropertyChanges().setRendered(); } } callback.executeOnDrop( getJSEvent(EventType.onDrop, 0, new Point(x, y), onSelectComponents.keySet() .toArray(new IComponent[onSelectComponents.size()]))); } if (Boolean.parseBoolean(request.getParameter(PARAM_IS_DBLCLICK))) { callback.executeOnDblClick(getJSEvent(EventType.doubleClick, 0, new Point(x, y), new IComponent[] { (IComponent) child })); } } } } } WebEventExecutor.generateResponse(target, getComponent().getPage()); target.appendJavascript("Servoy.ClientDesign.reattach();"); } /** * @param parameter * @return */ private String extractId(String id) { if (id != null && id.endsWith("_wrap")) { return id.substring(0, id.length() - 5); } return id; } private int stripUnitPart(String str) { if (str == null || str.trim().equals("") || "auto".equals(str)) return -1; if (str.endsWith("px") || str.endsWith("pt")) { return Integer.parseInt(str.substring(0, str.length() - 2)); } return Integer.parseInt(str); } /** * @see org.apache.wicket.behavior.AbstractBehavior#isEnabled(org.apache.wicket.Component) */ @Override public boolean isEnabled(Component component) { return super.isEnabled(component) && callback != null; } public void setDesignModeCallback(DesignModeCallbacks callback, FormController controller) { this.callback = callback; this.controller = controller; } public DesignModeCallbacks getDesignModeCallback() { return callback; } private JSEvent getJSEvent(EventType type, int modifiers, Point point, IComponent[] selected) { JSEvent event = new JSEvent(); event.setFormName(controller.getName()); event.setType(type); event.setModifiers(modifiers); event.setLocation(point); List<Object> selection = new ArrayList<Object>(); if (selected != null) { for (IComponent component : selected) { if (component instanceof IScriptableProvider) { selection.add(0, ((IScriptableProvider) component).getScriptObject()); } else { selection.add(0, component); } } } event.setData(selection.toArray()); //event.setSource(e) return event; } public String[] getSelectedComponentsNames() { Set<IComponent> selectedComponents = onSelectComponents.keySet(); if (selectedComponents.size() > 0) { ArrayList<String> selectedComponentsNames = new ArrayList<String>(); Iterator<IComponent> selectedComponentsIte = selectedComponents.iterator(); while (selectedComponentsIte.hasNext()) selectedComponentsNames.add(selectedComponentsIte.next().getName()); return selectedComponentsNames.toArray(new String[selectedComponentsNames.size()]); } return null; } public void setSelectedComponents(String[] selectedComponentsNames) { onSelectComponents.clear(); if (selectedComponentsNames != null && selectedComponentsNames.length > 0) { IComponent c; String compId; boolean webAnchorsEnabled = Utils.getAsBoolean( ((WebClientSession) Session.get()).getWebClient().getRuntimeProperties().get("enableAnchors")); boolean editable; for (String selectedComponentName : selectedComponentsNames) { c = getWicketComponentForName(selectedComponentName); editable = false; if (c instanceof IScriptableProvider && ((IScriptableProvider) c).getScriptObject() instanceof IRuntimeInputComponent) { editable = ((IRuntimeInputComponent) ((IScriptableProvider) c).getScriptObject()).isEditable(); } if (webAnchorsEnabled && c instanceof IScriptableProvider && ((IScriptableProvider) c).getScriptObject() instanceof IRuntimeComponent && needsWrapperDivForAnchoring( ((IRuntimeComponent) ((IScriptableProvider) c).getScriptObject()).getElementType(), editable)) { compId = ((Component) c).getMarkupId() + TemplateGenerator.WRAPPER_SUFFIX; } else { compId = ((Component) c).getMarkupId(); } onSelectComponents.put(c, compId); } } } private IComponent getWicketComponentForName(final String componentName) { if (componentName != null) { Component bindedComponent = getComponent(); if (bindedComponent != null) { WebForm parentWebForm = bindedComponent.findParent(WebForm.class); if (parentWebForm != null) { return (IComponent) parentWebForm.visitChildren(IComponent.class, new IVisitor<Component>() { public Object component(Component component) { if (componentName.equals(((IComponent) component).getName())) { return component; } return IVisitor.CONTINUE_TRAVERSAL; } }); } } } return null; } }