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- /*
- @ITMillApache2LicenseForJavaFiles@
- */
-
- package com.vaadin.terminal.gwt.client;
-
- import java.util.ArrayList;
- import java.util.Date;
- import java.util.HashMap;
- import java.util.HashSet;
- import java.util.Iterator;
- import java.util.Set;
- import java.util.Vector;
-
- import com.google.gwt.core.client.GWT;
- import com.google.gwt.core.client.JavaScriptObject;
- import com.google.gwt.http.client.Request;
- import com.google.gwt.http.client.RequestBuilder;
- import com.google.gwt.http.client.RequestCallback;
- import com.google.gwt.http.client.RequestException;
- import com.google.gwt.http.client.Response;
- import com.google.gwt.json.client.JSONArray;
- import com.google.gwt.json.client.JSONObject;
- import com.google.gwt.json.client.JSONParser;
- import com.google.gwt.json.client.JSONString;
- import com.google.gwt.json.client.JSONValue;
- import com.google.gwt.user.client.Command;
- import com.google.gwt.user.client.DOM;
- import com.google.gwt.user.client.DeferredCommand;
- import com.google.gwt.user.client.Element;
- import com.google.gwt.user.client.Event;
- import com.google.gwt.user.client.Timer;
- import com.google.gwt.user.client.Window;
- import com.google.gwt.user.client.impl.HTTPRequestImpl;
- import com.google.gwt.user.client.ui.FocusWidget;
- import com.google.gwt.user.client.ui.HasWidgets;
- import com.google.gwt.user.client.ui.Widget;
- import com.vaadin.terminal.gwt.client.RenderInformation.FloatSize;
- import com.vaadin.terminal.gwt.client.RenderInformation.Size;
- import com.vaadin.terminal.gwt.client.ui.Field;
- import com.vaadin.terminal.gwt.client.ui.VContextMenu;
- import com.vaadin.terminal.gwt.client.ui.VNotification;
- import com.vaadin.terminal.gwt.client.ui.VView;
- import com.vaadin.terminal.gwt.client.ui.VNotification.HideEvent;
-
- /**
- * Entry point classes define <code>onModuleLoad()</code>.
- */
- public class ApplicationConnection {
- private static final String MODIFIED_CLASSNAME = "i-modified";
-
- private static final String REQUIRED_CLASSNAME_EXT = "-required";
-
- private static final String ERROR_CLASSNAME_EXT = "-error";
-
- public static final String VAR_RECORD_SEPARATOR = "\u001e";
-
- public static final String VAR_FIELD_SEPARATOR = "\u001f";
-
- public static final String VAR_BURST_SEPARATOR = "\u001d";
-
- public static final String VAR_ARRAYITEM_SEPARATOR = "\u001c";
-
- public static final String UIDL_SECURITY_HEADER = "com.vaadin.seckey";
-
- public static final String PARAM_UNLOADBURST = "onunloadburst";
-
- private static String uidl_security_key = "init";
-
- private final HashMap<String, String> resourcesMap = new HashMap<String, String>();
-
- private static Console console;
-
- private final Vector<String> pendingVariables = new Vector<String>();
-
- private final ComponentDetailMap idToPaintableDetail = ComponentDetailMap
- .create();
-
- private final WidgetSet widgetSet;
-
- private VContextMenu contextMenu = null;
-
- private Timer loadTimer;
- private Timer loadTimer2;
- private Timer loadTimer3;
- private Element loadElement;
-
- private final VView view;
-
- private boolean applicationRunning = false;
-
- private int activeRequests = 0;
-
- /** Parameters for this application connection loaded from the web-page */
- private final ApplicationConfiguration configuration;
-
- /** List of pending variable change bursts that must be submitted in order */
- private final Vector<Vector<String>> pendingVariableBursts = new Vector<Vector<String>>();
-
- /** Timer for automatic refirect to SessionExpiredURL */
- private Timer redirectTimer;
-
- /** redirectTimer scheduling interval in seconds */
- private int sessionExpirationInterval;
-
- private ArrayList<Paintable> relativeSizeChanges = new ArrayList<Paintable>();;
- private ArrayList<Paintable> componentCaptionSizeChanges = new ArrayList<Paintable>();;
-
- private Date requestStartTime;
-
- private boolean validatingLayouts = false;
-
- private Set<Paintable> zeroWidthComponents = null;
-
- private Set<Paintable> zeroHeightComponents = null;
-
- public ApplicationConnection(WidgetSet widgetSet,
- ApplicationConfiguration cnf) {
- this.widgetSet = widgetSet;
- configuration = cnf;
- windowName = configuration.getInitialWindowName();
- if (isDebugMode()) {
- console = new VDebugConsole(this, cnf, !isQuietDebugMode());
- } else {
- console = new NullConsole();
- }
-
- ComponentLocator componentLocator = new ComponentLocator(this);
-
- String appRootPanelName = cnf.getRootPanelId();
- // remove the end (window name) of autogenarated rootpanel id
- appRootPanelName = appRootPanelName.replaceFirst("-\\d+$", "");
-
- initializeTestingToolsHooks(componentLocator, appRootPanelName);
-
- initializeClientHooks();
-
- view = new VView(cnf.getRootPanelId());
- showLoadingIndicator();
-
- }
-
- /**
- * Starts this application. Don't call this method directly - it's called by
- * {@link ApplicationConfiguration#startNextApplication()}, which should be
- * called once this application has started (first response received) or
- * failed to start. This ensures that the applications are started in order,
- * to avoid session-id problems.
- */
- void start() {
- makeUidlRequest("", true, false, false);
- }
-
- private native void initializeTestingToolsHooks(
- ComponentLocator componentLocator, String TTAppId)
- /*-{
- var ap = this;
- var client = {};
- client.isActive = function() {
- return ap.@com.vaadin.terminal.gwt.client.ApplicationConnection::hasActiveRequest()();
- }
- var vi = ap.@com.vaadin.terminal.gwt.client.ApplicationConnection::getVersionInfo()();
- if (vi) {
- client.getVersionInfo = function() {
- return vi;
- }
- }
-
- client.getElementByPath = function(id) {
- return componentLocator.@com.vaadin.terminal.gwt.client.ComponentLocator::getElementByPath(Ljava/lang/String;)(id);
- }
- client.getPathForElement = function(element) {
- return componentLocator.@com.vaadin.terminal.gwt.client.ComponentLocator::getPathForElement(Lcom/google/gwt/user/client/Element;)(element);
- }
-
- if(!$wnd.itmill.clients) {
- $wnd.itmill.clients = {};
- }
-
- $wnd.itmill.clients[TTAppId] = client;
- }-*/;
-
- /**
- * Helper for tt initialization
- */
- @SuppressWarnings("unused")
- private JavaScriptObject getVersionInfo() {
- return configuration.getVersionInfoJSObject();
- }
-
- /**
- * Publishes a JavaScript API for mash-up applications.
- * <ul>
- * <li><code>itmill.forceSync()</code> sends pending variable changes, in
- * effect synchronizing the server and client state. This is done for all
- * applications on host page.</li>
- * </ul>
- *
- * TODO make this multi-app aware
- */
- private native void initializeClientHooks()
- /*-{
- var app = this;
- var oldSync;
- if($wnd.itmill.forceSync) {
- oldSync = $wnd.itmill.forceSync;
- }
- $wnd.itmill.forceSync = function() {
- if(oldSync) {
- oldSync();
- }
- app.@com.vaadin.terminal.gwt.client.ApplicationConnection::sendPendingVariableChanges()();
- }
- var oldForceLayout;
- if($wnd.itmill.forceLayout) {
- oldForceLayout = $wnd.itmill.forceLayout;
- }
- $wnd.itmill.forceLayout = function() {
- if(oldForceLayout) {
- oldForceLayout();
- }
- app.@com.vaadin.terminal.gwt.client.ApplicationConnection::forceLayout()();
- }
- }-*/;
-
- public static Console getConsole() {
- return console;
- }
-
- /**
- * Checks if client side is in debug mode. Practically this is invoked by
- * adding ?debug parameter to URI.
- *
- * @return true if client side is currently been debugged
- */
- public native static boolean isDebugMode()
- /*-{
- if($wnd.itmill.debug) {
- var parameters = $wnd.location.search;
- var re = /debug[^\/]*$/;
- return re.test(parameters);
- } else {
- return false;
- }
- }-*/;
-
- private native static boolean isQuietDebugMode()
- /*-{
- var uri = $wnd.location;
- var re = /debug=q[^\/]*$/;
- return re.test(uri);
- }-*/;
-
- public String getAppUri() {
- return configuration.getApplicationUri();
- };
-
- public boolean hasActiveRequest() {
- return (activeRequests > 0);
- }
-
- private void makeUidlRequest(String requestData, boolean repaintAll,
- boolean forceSync, boolean analyzeLayouts) {
- startRequest();
-
- // Security: double cookie submission pattern
- requestData = uidl_security_key + VAR_BURST_SEPARATOR + requestData;
-
- console.log("Making UIDL Request with params: " + requestData);
- String uri = getAppUri() + "UIDL" + configuration.getPathInfo();
- if (repaintAll) {
- uri += "?repaintAll=1";
- if (analyzeLayouts) {
- uri += "&analyzeLayouts=1";
- }
- }
- if (windowName != null && windowName.length() > 0) {
- uri += (repaintAll ? "&" : "?") + "windowName=" + windowName;
- }
-
- if (!forceSync) {
- final RequestBuilder rb = new RequestBuilder(RequestBuilder.POST,
- uri);
- // TODO enable timeout
- // rb.setTimeoutMillis(timeoutMillis);
- rb.setHeader("Content-Type", "text/plain;charset=utf-8");
- try {
- rb.sendRequest(requestData, new RequestCallback() {
- public void onError(Request request, Throwable exception) {
- showCommunicationError(exception.getMessage());
- endRequest();
- if (!applicationRunning) {
- // start failed, let's try to start the next app
- ApplicationConfiguration.startNextApplication();
- }
- }
-
- public void onResponseReceived(Request request,
- Response response) {
- console.log("Server visit took "
- + String.valueOf((new Date()).getTime()
- - requestStartTime.getTime()) + "ms");
-
- switch (response.getStatusCode()) {
- case 0:
- showCommunicationError("Invalid status code 0 (server down?)");
- return;
- // TODO could add more cases
- }
- if ("init".equals(uidl_security_key)) {
- // Read security key
- String key = response
- .getHeader(UIDL_SECURITY_HEADER);
- if (null != key) {
- uidl_security_key = key;
- }
- }
- if (applicationRunning) {
- handleReceivedJSONMessage(response);
- } else {
- applicationRunning = true;
- handleWhenCSSLoaded(response);
- ApplicationConfiguration.startNextApplication();
- }
- }
-
- int cssWaits = 0;
- static final int MAX_CSS_WAITS = 20;
-
- private void handleWhenCSSLoaded(final Response response) {
- int heightOfLoadElement = DOM.getElementPropertyInt(
- loadElement, "offsetHeight");
- if (heightOfLoadElement == 0
- && cssWaits < MAX_CSS_WAITS) {
- (new Timer() {
- @Override
- public void run() {
- handleWhenCSSLoaded(response);
- }
- }).schedule(50);
- console
- .log("Assuming CSS loading is not complete, "
- + "postponing render phase. "
- + "(.i-loading-indicator height == 0)");
- cssWaits++;
- } else {
- handleReceivedJSONMessage(response);
- if (cssWaits >= MAX_CSS_WAITS) {
- console
- .error("CSS files may have not loaded properly.");
- }
- }
- }
-
- });
-
- } catch (final RequestException e) {
- ClientExceptionHandler.displayError(e);
- endRequest();
- }
- } else {
- // Synchronized call, discarded response
-
- syncSendForce(((HTTPRequestImpl) GWT.create(HTTPRequestImpl.class))
- .createXmlHTTPRequest(), uri + "&" + PARAM_UNLOADBURST
- + "=1", requestData);
- }
- }
-
- /**
- * Shows the communication error notification. The 'details' only go to the
- * console for now.
- *
- * @param details
- * Optional details for debugging.
- */
- private void showCommunicationError(String details) {
- console.error("Communication error: " + details);
- String html = "";
- if (configuration.getCommunicationErrorCaption() != null) {
- html += "<h1>" + configuration.getCommunicationErrorCaption()
- + "</h1>";
- }
- if (configuration.getCommunicationErrorMessage() != null) {
- html += "<p>" + configuration.getCommunicationErrorMessage()
- + "</p>";
- }
- if (html.length() > 0) {
- VNotification n = new VNotification(1000 * 60 * 45);
- n.addEventListener(new NotificationRedirect(configuration
- .getCommunicationErrorUrl()));
- n
- .show(html, VNotification.CENTERED_TOP,
- VNotification.STYLE_SYSTEM);
- } else {
- redirect(configuration.getCommunicationErrorUrl());
- }
- }
-
- private native void syncSendForce(JavaScriptObject xmlHttpRequest,
- String uri, String requestData)
- /*-{
- try {
- xmlHttpRequest.open("POST", uri, false);
- xmlHttpRequest.setRequestHeader("Content-Type", "text/plain;charset=utf-8");
- xmlHttpRequest.send(requestData);
- } catch (e) {
- // No errors are managed as this is synchronous forceful send that can just fail
- }
-
- }-*/;
-
- private void startRequest() {
- activeRequests++;
- requestStartTime = new Date();
- // show initial throbber
- if (loadTimer == null) {
- loadTimer = new Timer() {
- @Override
- public void run() {
- /*
- * IE7 does not properly cancel the event with
- * loadTimer.cancel() so we have to check that we really
- * should make it visible
- */
- if (loadTimer != null) {
- showLoadingIndicator();
- }
-
- }
- };
- // First one kicks in at 300ms
- }
- loadTimer.schedule(300);
- }
-
- private void endRequest() {
- if (applicationRunning) {
- checkForPendingVariableBursts();
- }
- activeRequests--;
- // deferring to avoid flickering
- DeferredCommand.addCommand(new Command() {
- public void execute() {
- if (activeRequests == 0) {
- hideLoadingIndicator();
- }
- }
- });
- }
-
- /**
- * This method is called after applying uidl change set to application.
- *
- * It will clean current and queued variable change sets. And send next
- * change set if it exists.
- */
- private void checkForPendingVariableBursts() {
- cleanVariableBurst(pendingVariables);
- if (pendingVariableBursts.size() > 0) {
- for (Iterator<Vector<String>> iterator = pendingVariableBursts
- .iterator(); iterator.hasNext();) {
- cleanVariableBurst(iterator.next());
- }
- Vector<String> nextBurst = pendingVariableBursts.firstElement();
- pendingVariableBursts.remove(0);
- buildAndSendVariableBurst(nextBurst, false);
- }
- }
-
- /**
- * Cleans given queue of variable changes of such changes that came from
- * components that do not exist anymore.
- *
- * @param variableBurst
- */
- private void cleanVariableBurst(Vector<String> variableBurst) {
- for (int i = 1; i < variableBurst.size(); i += 2) {
- String id = variableBurst.get(i);
- id = id.substring(0, id.indexOf(VAR_FIELD_SEPARATOR));
- if (!idToPaintableDetail.containsKey(id)) {
- // variable owner does not exist anymore
- variableBurst.remove(i - 1);
- variableBurst.remove(i - 1);
- i -= 2;
- ApplicationConnection.getConsole().log(
- "Removed variable from removed component: " + id);
- }
- }
- }
-
- private void showLoadingIndicator() {
- // show initial throbber
- if (loadElement == null) {
- loadElement = DOM.createDiv();
- DOM.setStyleAttribute(loadElement, "position", "absolute");
- DOM.appendChild(view.getElement(), loadElement);
- ApplicationConnection.getConsole().log("inserting load indicator");
- }
- DOM.setElementProperty(loadElement, "className", "i-loading-indicator");
- DOM.setStyleAttribute(loadElement, "display", "block");
- // Initialize other timers
- loadTimer2 = new Timer() {
- @Override
- public void run() {
- DOM.setElementProperty(loadElement, "className",
- "i-loading-indicator-delay");
- }
- };
- // Second one kicks in at 1500ms from request start
- loadTimer2.schedule(1200);
-
- loadTimer3 = new Timer() {
- @Override
- public void run() {
- DOM.setElementProperty(loadElement, "className",
- "i-loading-indicator-wait");
- }
- };
- // Third one kicks in at 5000ms from request start
- loadTimer3.schedule(4700);
- }
-
- private void hideLoadingIndicator() {
- if (loadTimer != null) {
- loadTimer.cancel();
- if (loadTimer2 != null) {
- loadTimer2.cancel();
- loadTimer3.cancel();
- }
- loadTimer = null;
- }
- if (loadElement != null) {
- DOM.setStyleAttribute(loadElement, "display", "none");
- }
- }
-
- private void handleReceivedJSONMessage(Response response) {
- final Date start = new Date();
- String jsonText = response.getText();
- // for(;;);[realjson]
- jsonText = jsonText.substring(9, jsonText.length() - 1);
- JSONValue json;
- try {
- json = JSONParser.parse(jsonText);
- } catch (final com.google.gwt.json.client.JSONException e) {
- endRequest();
- showCommunicationError(e.getMessage() + " - Original JSON-text:");
- console.log(jsonText);
- return;
- }
- // Handle redirect
- final JSONObject redirect = (JSONObject) ((JSONObject) json)
- .get("redirect");
- if (redirect != null) {
- final JSONString url = (JSONString) redirect.get("url");
- if (url != null) {
- console.log("redirecting to " + url.stringValue());
- redirect(url.stringValue());
- return;
- }
- }
-
- // Store resources
- final JSONObject resources = (JSONObject) ((JSONObject) json)
- .get("resources");
- for (final Iterator<String> i = resources.keySet().iterator(); i
- .hasNext();) {
- final String key = i.next();
- resourcesMap.put(key, ((JSONString) resources.get(key))
- .stringValue());
- }
-
- // Store locale data
- if (((JSONObject) json).containsKey("locales")) {
- final JSONArray l = (JSONArray) ((JSONObject) json).get("locales");
- for (int i = 0; i < l.size(); i++) {
- LocaleService.addLocale((JSONObject) l.get(i));
- }
- }
-
- JSONObject meta = null;
- if (((JSONObject) json).containsKey("meta")) {
- meta = ((JSONObject) json).get("meta").isObject();
- if (meta.containsKey("repaintAll")) {
- view.clear();
- idToPaintableDetail.clear();
- if (meta.containsKey("invalidLayouts")) {
- validatingLayouts = true;
- zeroWidthComponents = new HashSet<Paintable>();
- zeroHeightComponents = new HashSet<Paintable>();
- }
- }
- if (meta.containsKey("timedRedirect")) {
- final JSONObject timedRedirect = meta.get("timedRedirect")
- .isObject();
- redirectTimer = new Timer() {
- @Override
- public void run() {
- redirect(timedRedirect.get("url").isString()
- .stringValue());
- }
- };
- sessionExpirationInterval = Integer.parseInt(timedRedirect.get(
- "interval").toString());
- }
- }
- if (redirectTimer != null) {
- redirectTimer.schedule(1000 * sessionExpirationInterval);
- }
- // Process changes
- final JSONArray changes = (JSONArray) ((JSONObject) json)
- .get("changes");
-
- Vector<Paintable> updatedWidgets = new Vector<Paintable>();
- relativeSizeChanges.clear();
- componentCaptionSizeChanges.clear();
-
- for (int i = 0; i < changes.size(); i++) {
- try {
- final UIDL change = new UIDL((JSONArray) changes.get(i));
- try {
- console.dirUIDL(change);
- } catch (final Exception e) {
- ClientExceptionHandler.displayError(e);
- // TODO: dir doesn't work in any browser although it should
- // work (works in hosted mode)
- // it partially did at some part but now broken.
- }
- final UIDL uidl = change.getChildUIDL(0);
- // TODO optimize
- final Paintable paintable = getPaintable(uidl.getId());
- if (paintable != null) {
- paintable.updateFromUIDL(uidl, this);
- // paintable may have changed during render to another
- // implementation, use the new one for updated widgets map
- updatedWidgets.add(idToPaintableDetail.get(uidl.getId())
- .getComponent());
- } else {
- if (!uidl.getTag().equals("window")) {
- ClientExceptionHandler
- .displayError("Received update for "
- + uidl.getTag()
- + ", but there is no such paintable ("
- + uidl.getId() + ") rendered.");
- } else {
- view.updateFromUIDL(uidl, this);
- }
- }
- } catch (final Throwable e) {
- ClientExceptionHandler.displayError(e);
- }
- }
-
- // Check which widgets' size has been updated
- Set<Paintable> sizeUpdatedWidgets = new HashSet<Paintable>();
-
- updatedWidgets.addAll(relativeSizeChanges);
- sizeUpdatedWidgets.addAll(componentCaptionSizeChanges);
-
- for (Paintable paintable : updatedWidgets) {
- ComponentDetail detail = idToPaintableDetail.get(getPid(paintable));
- Widget widget = (Widget) paintable;
- Size oldSize = detail.getOffsetSize();
- Size newSize = new Size(widget.getOffsetWidth(), widget
- .getOffsetHeight());
-
- if (oldSize == null || !oldSize.equals(newSize)) {
- sizeUpdatedWidgets.add(paintable);
- detail.setOffsetSize(newSize);
- }
-
- }
-
- Util.componentSizeUpdated(sizeUpdatedWidgets);
-
- if (meta != null) {
- if (meta.containsKey("appError")) {
- JSONObject error = meta.get("appError").isObject();
- JSONValue val = error.get("caption");
- String html = "";
- if (val.isString() != null) {
- html += "<h1>" + val.isString().stringValue() + "</h1>";
- }
- val = error.get("message");
- if (val.isString() != null) {
- html += "<p>" + val.isString().stringValue() + "</p>";
- }
- val = error.get("url");
- String url = null;
- if (val.isString() != null) {
- url = val.isString().stringValue();
- }
-
- if (html.length() != 0) {
- /* 45 min */
- VNotification n = new VNotification(1000 * 60 * 45);
- n.addEventListener(new NotificationRedirect(url));
- n.show(html, VNotification.CENTERED_TOP,
- VNotification.STYLE_SYSTEM);
- } else {
- redirect(url);
- }
- applicationRunning = false;
- }
- if (validatingLayouts) {
- getConsole().printLayoutProblems(
- meta.get("invalidLayouts").isArray(), this,
- zeroHeightComponents, zeroWidthComponents);
- zeroHeightComponents = null;
- zeroWidthComponents = null;
- validatingLayouts = false;
-
- }
- }
-
- final long prosessingTime = (new Date().getTime()) - start.getTime();
- console.log(" Processing time was " + String.valueOf(prosessingTime)
- + "ms for " + jsonText.length() + " characters of JSON");
- console.log("Referenced paintables: " + idToPaintableDetail.size());
-
- endRequest();
- }
-
- /**
- * This method assures that all pending variable changes are sent to server.
- * Method uses synchronized xmlhttprequest and does not return before the
- * changes are sent. No UIDL updates are processed and thut UI is left in
- * inconsistent state. This method should be called only when closing
- * windows - normally sendPendingVariableChanges() should be used.
- */
- public void sendPendingVariableChangesSync() {
- if (applicationRunning) {
- pendingVariableBursts.add(pendingVariables);
- Vector<String> nextBurst = pendingVariableBursts.firstElement();
- pendingVariableBursts.remove(0);
- buildAndSendVariableBurst(nextBurst, true);
- }
- }
-
- // Redirect browser, null reloads current page
- private static native void redirect(String url)
- /*-{
- if (url) {
- $wnd.location = url;
- } else {
- $wnd.location.reload(false);
- }
- }-*/;
-
- public void registerPaintable(String id, Paintable paintable) {
- ComponentDetail componentDetail = new ComponentDetail();
- componentDetail.setComponent(paintable);
- idToPaintableDetail.put(id, componentDetail);
- setPid(((Widget) paintable).getElement(), id);
- }
-
- private native void setPid(Element el, String pid)
- /*-{
- el.tkPid = pid;
- }-*/;
-
- public String getPid(Paintable paintable) {
- return getPid(((Widget) paintable).getElement());
- }
-
- public native String getPid(Element el)
- /*-{
- return el.tkPid;
- }-*/;
-
- public Element getElementByPid(String pid) {
- return ((Widget) getPaintable(pid)).getElement();
- }
-
- public void unregisterPaintable(Paintable p) {
- if (p == null) {
- ApplicationConnection.getConsole().error(
- "WARN: Trying to unregister null paintable");
- return;
- }
- String id = getPid(p);
- idToPaintableDetail.remove(id);
- if (p instanceof HasWidgets) {
- unregisterChildPaintables((HasWidgets) p);
- }
- }
-
- public void unregisterChildPaintables(HasWidgets container) {
- final Iterator<Widget> it = container.iterator();
- while (it.hasNext()) {
- final Widget w = it.next();
- if (w instanceof Paintable) {
- unregisterPaintable((Paintable) w);
- } else if (w instanceof HasWidgets) {
- unregisterChildPaintables((HasWidgets) w);
- }
- }
- }
-
- /**
- * Returns Paintable element by its id
- *
- * @param id
- * Paintable ID
- */
- public Paintable getPaintable(String id) {
- ComponentDetail componentDetail = idToPaintableDetail.get(id);
- if (componentDetail == null) {
- return null;
- } else {
- return componentDetail.getComponent();
- }
- }
-
- private void addVariableToQueue(String paintableId, String variableName,
- String encodedValue, boolean immediate, char type) {
- final String id = paintableId + VAR_FIELD_SEPARATOR + variableName
- + VAR_FIELD_SEPARATOR + type;
- for (int i = 1; i < pendingVariables.size(); i += 2) {
- if ((pendingVariables.get(i)).equals(id)) {
- pendingVariables.remove(i - 1);
- pendingVariables.remove(i - 1);
- break;
- }
- }
- pendingVariables.add(encodedValue);
- pendingVariables.add(id);
- if (immediate) {
- sendPendingVariableChanges();
- }
- }
-
- /**
- * This method sends currently queued variable changes to server. It is
- * called when immediate variable update must happen.
- *
- * To ensure correct order for variable changes (due servers multithreading
- * or network), we always wait for active request to be handler before
- * sending a new one. If there is an active request, we will put varible
- * "burst" to queue that will be purged after current request is handled.
- *
- */
- @SuppressWarnings("unchecked")
- public void sendPendingVariableChanges() {
- if (applicationRunning) {
- if (hasActiveRequest()) {
- // skip empty queues if there are pending bursts to be sent
- if (pendingVariables.size() > 0
- || pendingVariableBursts.size() == 0) {
- Vector<String> burst = (Vector<String>) pendingVariables
- .clone();
- pendingVariableBursts.add(burst);
- pendingVariables.clear();
- }
- } else {
- buildAndSendVariableBurst(pendingVariables, false);
- }
- }
- }
-
- /**
- * Build the variable burst and send it to server.
- *
- * When sync is forced, we also force sending of all pending variable-bursts
- * at the same time. This is ok as we can assume that DOM will newer be
- * updated after this.
- *
- * @param pendingVariables
- * Vector of variablechanges to send
- * @param forceSync
- * Should we use synchronous request?
- */
- private void buildAndSendVariableBurst(Vector<String> pendingVariables,
- boolean forceSync) {
- final StringBuffer req = new StringBuffer();
-
- while (!pendingVariables.isEmpty()) {
- for (int i = 0; i < pendingVariables.size(); i++) {
- if (i > 0) {
- if (i % 2 == 0) {
- req.append(VAR_RECORD_SEPARATOR);
- } else {
- req.append(VAR_FIELD_SEPARATOR);
- }
- }
- req.append(pendingVariables.get(i));
- }
-
- pendingVariables.clear();
- // Append all the busts to this synchronous request
- if (forceSync && !pendingVariableBursts.isEmpty()) {
- pendingVariables = pendingVariableBursts.firstElement();
- pendingVariableBursts.remove(0);
- req.append(VAR_BURST_SEPARATOR);
- }
- }
- makeUidlRequest(req.toString(), false, forceSync, false);
- }
-
- public void updateVariable(String paintableId, String variableName,
- Paintable newValue, boolean immediate) {
- String pid = (newValue != null) ? getPid(newValue) : null;
- addVariableToQueue(paintableId, variableName, pid, immediate, 'p');
- }
-
- public void updateVariable(String paintableId, String variableName,
- String newValue, boolean immediate) {
- addVariableToQueue(paintableId, variableName, newValue, immediate, 's');
- }
-
- public void updateVariable(String paintableId, String variableName,
- int newValue, boolean immediate) {
- addVariableToQueue(paintableId, variableName, "" + newValue, immediate,
- 'i');
- }
-
- public void updateVariable(String paintableId, String variableName,
- long newValue, boolean immediate) {
- addVariableToQueue(paintableId, variableName, "" + newValue, immediate,
- 'l');
- }
-
- public void updateVariable(String paintableId, String variableName,
- float newValue, boolean immediate) {
- addVariableToQueue(paintableId, variableName, "" + newValue, immediate,
- 'f');
- }
-
- public void updateVariable(String paintableId, String variableName,
- double newValue, boolean immediate) {
- addVariableToQueue(paintableId, variableName, "" + newValue, immediate,
- 'd');
- }
-
- public void updateVariable(String paintableId, String variableName,
- boolean newValue, boolean immediate) {
- addVariableToQueue(paintableId, variableName, newValue ? "true"
- : "false", immediate, 'b');
- }
-
- public void updateVariable(String paintableId, String variableName,
- Object[] values, boolean immediate) {
- final StringBuffer buf = new StringBuffer();
- for (int i = 0; i < values.length; i++) {
- if (i > 0) {
- buf.append(VAR_ARRAYITEM_SEPARATOR);
- }
- buf.append(values[i].toString());
- }
- addVariableToQueue(paintableId, variableName, buf.toString(),
- immediate, 'a');
- }
-
- /**
- * Update generic component features.
- *
- * <h2>Selecting correct implementation</h2>
- *
- * <p>
- * The implementation of a component depends on many properties, including
- * styles, component features, etc. Sometimes the user changes those
- * properties after the component has been created. Calling this method in
- * the beginning of your updateFromUIDL -method automatically replaces your
- * component with more appropriate if the requested implementation changes.
- * </p>
- *
- * <h2>Caption, icon, error messages and description</h2>
- *
- * <p>
- * Component can delegate management of caption, icon, error messages and
- * description to parent layout. This is optional an should be decided by
- * component author
- * </p>
- *
- * <h2>Component visibility and disabling</h2>
- *
- * This method will manage component visibility automatically and if
- * component is an instanceof FocusWidget, also handle component disabling
- * when needed.
- *
- * @param component
- * Widget to be updated, expected to implement an instance of
- * Paintable
- * @param uidl
- * UIDL to be painted
- * @param manageCaption
- * True if you want to delegate caption, icon, description and
- * error message management to parent.
- *
- * @return Returns true iff no further painting is needed by caller
- */
- public boolean updateComponent(Widget component, UIDL uidl,
- boolean manageCaption) {
- String pid = getPid(component.getElement());
- if (pid == null) {
- getConsole().error(
- "Trying to update an unregistered component: "
- + Util.getSimpleName(component));
- return true;
- }
-
- ComponentDetail componentDetail = idToPaintableDetail.get(pid);
-
- if (componentDetail == null) {
- getConsole().error(
- "ComponentDetail not found for "
- + Util.getSimpleName(component) + " with PID "
- + pid + ". This should not happen.");
- return true;
- }
-
- // If the server request that a cached instance should be used, do
- // nothing
- if (uidl.getBooleanAttribute("cached")) {
- return true;
- }
-
- // Visibility
- boolean visible = !uidl.getBooleanAttribute("invisible");
- boolean wasVisible = component.isVisible();
- component.setVisible(visible);
- if (wasVisible != visible) {
- // Changed invisibile <-> visible
- if (wasVisible && manageCaption) {
- // Must hide caption when component is hidden
- final Container parent = Util.getLayout(component);
- if (parent != null) {
- parent.updateCaption((Paintable) component, uidl);
- }
-
- }
- }
-
- if (!visible) {
- // component is invisible, delete old size to notify parent, if
- // later make visible
- componentDetail.setOffsetSize(null);
- return true;
- }
-
- // Switch to correct implementation if needed
- if (!widgetSet.isCorrectImplementation(component, uidl)) {
- final Container parent = Util.getLayout(component);
- if (parent != null) {
- final Widget w = (Widget) widgetSet.createWidget(uidl);
- parent.replaceChildComponent(component, w);
- unregisterPaintable((Paintable) component);
- registerPaintable(uidl.getId(), (Paintable) w);
- ((Paintable) w).updateFromUIDL(uidl, this);
- return true;
- }
- }
-
- boolean enabled = !uidl.getBooleanAttribute("disabled");
- if (component instanceof FocusWidget) {
- FocusWidget fw = (FocusWidget) component;
- fw.setEnabled(enabled);
- if (uidl.hasAttribute("tabindex")) {
- fw.setTabIndex(uidl.getIntAttribute("tabindex"));
- }
- }
-
- StringBuffer styleBuf = new StringBuffer();
- final String primaryName = component.getStylePrimaryName();
- styleBuf.append(primaryName);
-
- // first disabling and read-only status
- if (!enabled) {
- styleBuf.append(" ");
- styleBuf.append("i-disabled");
- }
- if (uidl.getBooleanAttribute("readonly")) {
- styleBuf.append(" ");
- styleBuf.append("i-readonly");
- }
-
- // add additional styles as css classes, prefixed with component default
- // stylename
- if (uidl.hasAttribute("style")) {
- final String[] styles = uidl.getStringAttribute("style").split(" ");
- for (int i = 0; i < styles.length; i++) {
- styleBuf.append(" ");
- styleBuf.append(primaryName);
- styleBuf.append("-");
- styleBuf.append(styles[i]);
- styleBuf.append(" ");
- styleBuf.append(styles[i]);
- }
- }
-
- // add modified classname to Fields
- if (uidl.hasAttribute("modified") && component instanceof Field) {
- styleBuf.append(" ");
- styleBuf.append(MODIFIED_CLASSNAME);
- }
-
- TooltipInfo tooltipInfo = componentDetail.getTooltipInfo();
- if (uidl.hasAttribute("description")) {
- tooltipInfo.setTitle(uidl.getStringAttribute("description"));
- } else {
- tooltipInfo.setTitle(null);
- }
-
- // add error classname to components w/ error
- if (uidl.hasAttribute("error")) {
- styleBuf.append(" ");
- styleBuf.append(primaryName);
- styleBuf.append(ERROR_CLASSNAME_EXT);
-
- tooltipInfo.setErrorUidl(uidl.getErrors());
- } else {
- tooltipInfo.setErrorUidl(null);
- }
-
- // add required style to required components
- if (uidl.hasAttribute("required")) {
- styleBuf.append(" ");
- styleBuf.append(primaryName);
- styleBuf.append(REQUIRED_CLASSNAME_EXT);
- }
-
- // Styles + disabled & readonly
- component.setStyleName(styleBuf.toString());
-
- // Set captions
- if (manageCaption) {
- final Container parent = Util.getLayout(component);
- if (parent != null) {
- parent.updateCaption((Paintable) component, uidl);
- }
- }
-
- if (configuration.useDebugIdInDOM() && uidl.getId().startsWith("PID_S")) {
- DOM.setElementProperty(component.getElement(), "id", uidl.getId()
- .substring(5));
- }
-
- /*
- * updateComponentSize need to be after caption update so caption can be
- * taken into account
- */
-
- updateComponentSize(componentDetail, uidl);
-
- return false;
- }
-
- private void updateComponentSize(ComponentDetail cd, UIDL uidl) {
- String w = uidl.hasAttribute("width") ? uidl
- .getStringAttribute("width") : "";
-
- String h = uidl.hasAttribute("height") ? uidl
- .getStringAttribute("height") : "";
-
- float relativeWidth = Util.parseRelativeSize(w);
- float relativeHeight = Util.parseRelativeSize(h);
-
- // First update maps so they are correct in the setHeight/setWidth calls
- if (relativeHeight >= 0.0 || relativeWidth >= 0.0) {
- // One or both is relative
- FloatSize relativeSize = new FloatSize(relativeWidth,
- relativeHeight);
- if (cd.getRelativeSize() == null && cd.getOffsetSize() != null) {
- // The component has changed from absolute size to relative size
- relativeSizeChanges.add(cd.getComponent());
- }
- cd.setRelativeSize(relativeSize);
- } else if (relativeHeight < 0.0 && relativeWidth < 0.0) {
- if (cd.getRelativeSize() != null) {
- // The component has changed from relative size to absolute size
- relativeSizeChanges.add(cd.getComponent());
- }
- cd.setRelativeSize(null);
- }
-
- Widget component = (Widget) cd.getComponent();
- // Set absolute sizes
- if (relativeHeight < 0.0) {
- component.setHeight(h);
- }
- if (relativeWidth < 0.0) {
- component.setWidth(w);
- }
-
- // Set relative sizes
- if (relativeHeight >= 0.0 || relativeWidth >= 0.0) {
- // One or both is relative
- handleComponentRelativeSize(cd);
- }
-
- }
-
- /**
- * Traverses recursively child widgets until ContainerResizedListener child
- * widget is found. They will delegate it further if needed.
- *
- * @param container
- */
- private boolean runningLayout = false;
-
- public void runDescendentsLayout(HasWidgets container) {
- if (runningLayout) {
- // getConsole().log(
- // "Already running descendents layout. Not running again for "
- // + Util.getSimpleName(container));
- return;
- }
- runningLayout = true;
- internalRunDescendentsLayout(container);
- runningLayout = false;
- }
-
- /**
- * This will cause re-layouting of all components. Mainly used for
- * development. Published to JavaScript.
- */
- public void forceLayout() {
- Set<Paintable> set = new HashSet<Paintable>();
- for (ComponentDetail cd : idToPaintableDetail.values()) {
- set.add(cd.getComponent());
- }
- Util.componentSizeUpdated(set);
- }
-
- private void internalRunDescendentsLayout(HasWidgets container) {
- // getConsole().log(
- // "runDescendentsLayout(" + Util.getSimpleName(container) + ")");
- final Iterator<Widget> childWidgets = container.iterator();
- while (childWidgets.hasNext()) {
- final Widget child = childWidgets.next();
-
- if (child instanceof Paintable) {
-
- if (handleComponentRelativeSize(child)) {
- /*
- * Only need to propagate event if "child" has a relative
- * size
- */
-
- if (child instanceof ContainerResizedListener) {
- ((ContainerResizedListener) child).iLayout();
- }
-
- if (child instanceof HasWidgets) {
- final HasWidgets childContainer = (HasWidgets) child;
- internalRunDescendentsLayout(childContainer);
- }
- }
- } else if (child instanceof HasWidgets) {
- // propagate over non Paintable HasWidgets
- internalRunDescendentsLayout((HasWidgets) child);
- }
-
- }
- }
-
- /**
- * Converts relative sizes into pixel sizes.
- *
- * @param child
- * @return true if the child has a relative size
- */
- private boolean handleComponentRelativeSize(ComponentDetail cd) {
- if (cd == null) {
- return false;
- }
- boolean debugSizes = false;
-
- FloatSize relativeSize = cd.getRelativeSize();
- if (relativeSize == null) {
- return false;
- }
- Widget widget = (Widget) cd.getComponent();
-
- boolean horizontalScrollBar = false;
- boolean verticalScrollBar = false;
-
- Container parent = Util.getLayout(widget);
- RenderSpace renderSpace;
-
- // Parent-less components (like sub-windows) are relative to browser
- // window.
- if (parent == null) {
- renderSpace = new RenderSpace(Window.getClientWidth(), Window
- .getClientHeight());
- } else {
- renderSpace = parent.getAllocatedSpace(widget);
- }
-
- if (relativeSize.getHeight() >= 0) {
- if (renderSpace != null) {
-
- if (renderSpace.getScrollbarSize() > 0) {
- if (relativeSize.getWidth() > 100) {
- horizontalScrollBar = true;
- } else if (relativeSize.getWidth() < 0
- && renderSpace.getWidth() > 0) {
- int offsetWidth = widget.getOffsetWidth();
- int width = renderSpace.getWidth();
- if (offsetWidth > width) {
- horizontalScrollBar = true;
- }
- }
- }
-
- int height = renderSpace.getHeight();
- if (horizontalScrollBar) {
- height -= renderSpace.getScrollbarSize();
- }
- if (validatingLayouts && height <= 0) {
- zeroHeightComponents.add(cd.getComponent());
- }
-
- height = (int) (height * relativeSize.getHeight() / 100.0);
-
- if (height < 0) {
- height = 0;
- }
-
- if (debugSizes) {
- getConsole()
- .log(
- "Widget "
- + Util.getSimpleName(widget)
- + "/"
- + getPid(widget.getElement())
- + " relative height "
- + relativeSize.getHeight()
- + "% of "
- + renderSpace.getHeight()
- + "px (reported by "
-
- + Util.getSimpleName(parent)
- + "/"
- + (parent == null ? "?" : parent
- .hashCode()) + ") : "
- + height + "px");
- }
- widget.setHeight(height + "px");
- } else {
- widget.setHeight(relativeSize.getHeight() + "%");
- ApplicationConnection.getConsole().error(
- Util.getLayout(widget).getClass().getName()
- + " did not produce allocatedSpace for "
- + widget.getClass().getName());
- }
- }
-
- if (relativeSize.getWidth() >= 0) {
-
- if (renderSpace != null) {
-
- int width = renderSpace.getWidth();
-
- if (renderSpace.getScrollbarSize() > 0) {
- if (relativeSize.getHeight() > 100) {
- verticalScrollBar = true;
- } else if (relativeSize.getHeight() < 0
- && renderSpace.getHeight() > 0
- && widget.getOffsetHeight() > renderSpace
- .getHeight()) {
- verticalScrollBar = true;
- }
- }
-
- if (verticalScrollBar) {
- width -= renderSpace.getScrollbarSize();
- }
- if (validatingLayouts && width <= 0) {
- zeroWidthComponents.add(cd.getComponent());
- }
-
- width = (int) (width * relativeSize.getWidth() / 100.0);
-
- if (width < 0) {
- width = 0;
- }
-
- if (debugSizes) {
- getConsole().log(
- "Widget " + Util.getSimpleName(widget) + "/"
- + getPid(widget.getElement())
- + " relative width "
- + relativeSize.getWidth() + "% of "
- + renderSpace.getWidth()
- + "px (reported by "
- + Util.getSimpleName(parent) + "/"
- + (parent == null ? "?" : getPid(parent))
- + ") : " + width + "px");
- }
- widget.setWidth(width + "px");
- } else {
- widget.setWidth(relativeSize.getWidth() + "%");
- ApplicationConnection.getConsole().error(
- Util.getLayout(widget).getClass().getName()
- + " did not produce allocatedSpace for "
- + widget.getClass().getName());
- }
- }
-
- return true;
- }
-
- /**
- * Converts relative sizes into pixel sizes.
- *
- * @param child
- * @return true if the child has a relative size
- */
- public boolean handleComponentRelativeSize(Widget child) {
- return handleComponentRelativeSize(idToPaintableDetail.get(getPid(child
- .getElement())));
-
- }
-
- public FloatSize getRelativeSize(Widget widget) {
- return idToPaintableDetail.get(getPid(widget.getElement()))
- .getRelativeSize();
- }
-
- /**
- * Get either existing or new Paintable for given UIDL.
- *
- * If corresponding Paintable has been previously painted, return it.
- * Otherwise create and register a new Paintable from UIDL. Caller must
- * update the returned Paintable from UIDL after it has been connected to
- * parent.
- *
- * @param uidl
- * UIDL to create Paintable from.
- * @return Either existing or new Paintable corresponding to UIDL.
- */
- public Paintable getPaintable(UIDL uidl) {
- final String id = uidl.getId();
- Paintable w = getPaintable(id);
- if (w != null) {
- return w;
- } else {
- w = widgetSet.createWidget(uidl);
- registerPaintable(id, w);
- return w;
-
- }
- }
-
- /**
- * Returns a Paintable element by its root element
- *
- * @param element
- * Root element of the paintable
- */
- public Paintable getPaintable(Element element) {
- return getPaintable(getPid(element));
- }
-
- public String getResource(String name) {
- return resourcesMap.get(name);
- }
-
- /**
- * Singleton method to get instance of app's context menu.
- *
- * @return VContextMenu object
- */
- public VContextMenu getContextMenu() {
- if (contextMenu == null) {
- contextMenu = new VContextMenu();
- DOM.setElementProperty(contextMenu.getElement(), "id",
- "PID_TOOLKIT_CM");
- }
- return contextMenu;
- }
-
- /**
- * Translates custom protocols in UIRL URI's to be recognizable by browser.
- * All uri's from UIDL should be routed via this method before giving them
- * to browser due URI's in UIDL may contain custom protocols like theme://.
- *
- * @param toolkitUri
- * toolkit URI from uidl
- * @return translated URI ready for browser
- */
- public String translateToolkitUri(String toolkitUri) {
- if (toolkitUri == null) {
- return null;
- }
- if (toolkitUri.startsWith("theme://")) {
- final String themeUri = configuration.getThemeUri();
- if (themeUri == null) {
- console
- .error("Theme not set: ThemeResource will not be found. ("
- + toolkitUri + ")");
- }
- toolkitUri = themeUri + toolkitUri.substring(7);
- }
- return toolkitUri;
- }
-
- public String getThemeUri() {
- return configuration.getThemeUri();
- }
-
- /**
- * Listens for Notification hide event, and redirects. Used for system
- * messages, such as session expired.
- *
- */
- private class NotificationRedirect implements VNotification.EventListener {
- String url;
-
- NotificationRedirect(String url) {
- this.url = url;
- }
-
- public void notificationHidden(HideEvent event) {
- redirect(url);
- }
-
- }
-
- /* Extended title handling */
-
- /**
- * Data showed in tooltips are stored centrilized as it may be needed in
- * varios place: caption, layouts, and in owner components themselves.
- *
- * Updating TooltipInfo is done in updateComponent method.
- *
- */
- public TooltipInfo getTitleInfo(Paintable titleOwner) {
- if (null == titleOwner) {
- return null;
- }
- ComponentDetail pd = idToPaintableDetail.get(getPid(titleOwner));
- if (null != pd) {
- return pd.getTooltipInfo();
- } else {
- return null;
- }
- }
-
- private final VTooltip tooltip = new VTooltip(this);
-
- /**
- * Component may want to delegate Tooltip handling to client. Layouts add
- * Tooltip (description, errors) to caption, but some components may want
- * them to appear one other elements too.
- *
- * Events wanted by this handler are same as in Tooltip.TOOLTIP_EVENTS
- *
- * @param event
- * @param owner
- */
- public void handleTooltipEvent(Event event, Paintable owner) {
- tooltip.handleTooltipEvent(event, owner);
-
- }
-
- /**
- * Adds PNG-fix conditionally (only for IE6) to the specified IMG -element.
- *
- * @param el
- * the IMG element to fix
- */
- public void addPngFix(Element el) {
- BrowserInfo b = BrowserInfo.get();
- if (b.isIE6()) {
- Util.addPngFix(el, getThemeUri()
- + "/../default/common/img/blank.gif");
- }
- }
-
- /*
- * Helper to run layout functions triggered by child components with a
- * decent interval.
- */
- private final Timer layoutTimer = new Timer() {
-
- private boolean isPending = false;
-
- @Override
- public void schedule(int delayMillis) {
- if (!isPending) {
- super.schedule(delayMillis);
- isPending = true;
- }
- }
-
- @Override
- public void run() {
- getConsole().log(
- "Running re-layout of " + view.getClass().getName());
- runDescendentsLayout(view);
- isPending = false;
- }
- };
-
- /**
- * Components can call this function to run all layout functions. This is
- * usually done, when component knows that its size has changed.
- */
- public void requestLayoutPhase() {
- layoutTimer.schedule(500);
- }
-
- private String windowName = null;
-
- /**
- * Reset the name of the current browser-window. This should reflect the
- * window-name used in the server, but might be different from the
- * window-object target-name on client.
- *
- * @param stringAttribute
- * New name for the window.
- */
- public void setWindowName(String newName) {
- windowName = newName;
- }
-
- public void captionSizeUpdated(Paintable component) {
- componentCaptionSizeChanges.add(component);
- }
-
- public void analyzeLayouts() {
- makeUidlRequest("", true, false, true);
- }
-
- public VView getView() {
- return view;
- }
-
- }
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