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- /*
- @ITMillApache2LicenseForJavaFiles@
- */
-
- package com.vaadin.terminal.gwt.client.ui;
-
- import java.util.HashMap;
- import java.util.Iterator;
- import java.util.Map;
-
- import com.google.gwt.dom.client.Document;
- import com.google.gwt.dom.client.Node;
- import com.google.gwt.dom.client.NodeList;
- import com.google.gwt.dom.client.ObjectElement;
- import com.google.gwt.dom.client.Style;
- import com.google.gwt.event.dom.client.DomEvent.Type;
- import com.google.gwt.event.shared.EventHandler;
- import com.google.gwt.event.shared.HandlerRegistration;
- import com.google.gwt.user.client.DOM;
- import com.google.gwt.user.client.Element;
- import com.google.gwt.user.client.Event;
- import com.google.gwt.user.client.ui.HTML;
- import com.vaadin.terminal.gwt.client.ApplicationConnection;
- import com.vaadin.terminal.gwt.client.BrowserInfo;
- import com.vaadin.terminal.gwt.client.Paintable;
- import com.vaadin.terminal.gwt.client.UIDL;
- import com.vaadin.terminal.gwt.client.Util;
- import com.vaadin.terminal.gwt.client.VTooltip;
-
- public class VEmbedded extends HTML implements Paintable {
- public static final String CLICK_EVENT_IDENTIFIER = "click";
-
- private static String CLASSNAME = "v-embedded";
-
- private String height;
- private String width;
- private Element browserElement;
-
- private ApplicationConnection client;
-
- private ClickEventHandler clickEventHandler = new ClickEventHandler(this,
- CLICK_EVENT_IDENTIFIER) {
-
- @Override
- protected <H extends EventHandler> HandlerRegistration registerHandler(
- H handler, Type<H> type) {
- return addDomHandler(handler, type);
- }
-
- };
-
- public VEmbedded() {
- setStyleName(CLASSNAME);
- }
-
- public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
- if (client.updateComponent(this, uidl, true)) {
- return;
- }
- this.client = client;
-
- boolean clearBrowserElement = true;
-
- clickEventHandler.handleEventHandlerRegistration(client);
-
- if (uidl.hasAttribute("type")) {
- final String type = uidl.getStringAttribute("type");
- if (type.equals("image")) {
- Element el = null;
- boolean created = false;
- NodeList<Node> nodes = getElement().getChildNodes();
- if (nodes != null && nodes.getLength() == 1) {
- Node n = nodes.getItem(0);
- if (n.getNodeType() == Node.ELEMENT_NODE) {
- Element e = (Element) n;
- if (e.getTagName().equals("IMG")) {
- el = e;
- }
- }
- }
- if (el == null) {
- setHTML("");
- el = DOM.createImg();
- created = true;
- client.addPngFix(el);
- DOM.sinkEvents(el, Event.ONLOAD);
- }
-
- // Set attributes
- Style style = el.getStyle();
- String w = uidl.getStringAttribute("width");
- if (w != null) {
- style.setProperty("width", w);
- } else {
- style.setProperty("width", "");
- }
- String h = uidl.getStringAttribute("height");
- if (h != null) {
- style.setProperty("height", h);
- } else {
- style.setProperty("height", "");
- }
- DOM.setElementProperty(el, "src", getSrc(uidl, client));
-
- if (created) {
- // insert in dom late
- getElement().appendChild(el);
- }
-
- /*
- * Sink tooltip events so tooltip is displayed when hovering the
- * image.
- */
- sinkEvents(VTooltip.TOOLTIP_EVENTS);
-
- } else if (type.equals("browser")) {
- if (browserElement == null) {
- setHTML("<iframe width=\"100%\" height=\"100%\" frameborder=\"0\" allowTransparency=\"true\" src=\""
- + getSrc(uidl, client)
- + "\" name=\""
- + uidl.getId() + "\"></iframe>");
- browserElement = DOM.getFirstChild(getElement());
- } else {
- DOM.setElementAttribute(browserElement, "src",
- getSrc(uidl, client));
- }
- clearBrowserElement = false;
- } else {
- ApplicationConnection.getConsole().log(
- "Unknown Embedded type '" + type + "'");
- }
- } else if (uidl.hasAttribute("mimetype")) {
- final String mime = uidl.getStringAttribute("mimetype");
- if (mime.equals("application/x-shockwave-flash")) {
- String html = "<object width=\"" + width + "\" height=\""
- + height + "\">";
-
- Map<String, String> parameters = getParameters(uidl);
- if (parameters.get("movie") == null) {
- parameters.put("movie", getSrc(uidl, client));
- }
-
- // Add the parameters to the Object
- for (String name : parameters.keySet()) {
- html += "<param name=\"" + escapeAttribute(name)
- + "\" value=\""
- + escapeAttribute(parameters.get(name)) + "\"/>";
- }
-
- html += "<embed src=\"" + getSrc(uidl, client) + "\" width=\""
- + width + "\" height=\"" + height + "\" ";
-
- // Add the parameters to the Embed
- for (String name : parameters.keySet()) {
- html += escapeAttribute(name) + "=\""
- + escapeAttribute(parameters.get(name)) + "\" ";
- }
-
- html += "></embed></object>";
- setHTML(html);
- } else if (mime.equals("image/svg+xml")) {
- String data;
- Map<String, String> parameters = getParameters(uidl);
- if (parameters.get("data") == null) {
- data = getSrc(uidl, client);
- } else {
- data = "data:image/svg+xml," + parameters.get("data");
- }
- setHTML("");
- ObjectElement obj = Document.get().createObjectElement();
- obj.setType(mime);
- obj.setData(data);
- if (width != null) {
- obj.getStyle().setProperty("width", "100%");
- }
- if (height != null) {
- obj.getStyle().setProperty("height", "100%");
- }
- getElement().appendChild(obj);
-
- } else {
- ApplicationConnection.getConsole().log(
- "Unknown Embedded mimetype '" + mime + "'");
- }
- } else {
- ApplicationConnection.getConsole().log(
- "Unknown Embedded; no type or mimetype attribute");
- }
-
- if (clearBrowserElement) {
- browserElement = null;
- }
-
- }
-
- /**
- * Escapes the string so it is safe to write inside an HTML attribute.
- *
- * @param attribute
- * The string to escape
- * @return An escaped version of <literal>attribute</literal>.
- */
- private String escapeAttribute(String attribute) {
- attribute = attribute.replace("\"", """);
- attribute = attribute.replace("'", "'");
- attribute = attribute.replace(">", ">");
- attribute = attribute.replace("<", "<");
- attribute = attribute.replace("&", "&");
- return attribute;
- }
-
- /**
- * Returns a map (name -> value) of all parameters in the UIDL.
- *
- * @param uidl
- * @return
- */
- private static Map<String, String> getParameters(UIDL uidl) {
- Map<String, String> parameters = new HashMap<String, String>();
-
- Iterator<Object> childIterator = uidl.getChildIterator();
- while (childIterator.hasNext()) {
-
- Object child = childIterator.next();
- if (child instanceof UIDL) {
-
- UIDL childUIDL = (UIDL) child;
- if (childUIDL.getTag().equals("embeddedparam")) {
- String name = childUIDL.getStringAttribute("name");
- String value = childUIDL.getStringAttribute("value");
- parameters.put(name, value);
- }
- }
-
- }
-
- return parameters;
- }
-
- /**
- * Helper to return translated src-attribute from embedded's UIDL
- *
- * @param uidl
- * @param client
- * @return
- */
- private String getSrc(UIDL uidl, ApplicationConnection client) {
- String url = client.translateVaadinUri(uidl.getStringAttribute("src"));
- if (url == null) {
- return "";
- }
- return url;
- }
-
- @Override
- public void setWidth(String width) {
- this.width = width;
- if (isDynamicHeight()) {
- int oldHeight = getOffsetHeight();
- super.setWidth(width);
- int newHeight = getOffsetHeight();
- /*
- * Must notify parent if the height changes as a result of a width
- * change
- */
- if (oldHeight != newHeight) {
- Util.notifyParentOfSizeChange(this, false);
- }
- } else {
- super.setWidth(width);
- }
-
- }
-
- private boolean isDynamicHeight() {
- return height == null || height.equals("");
- }
-
- @Override
- public void setHeight(String height) {
- this.height = height;
- super.setHeight(height);
- }
-
- @Override
- protected void onDetach() {
- if (BrowserInfo.get().isIE()) {
- // Force browser to fire unload event when component is detached
- // from the view (IE doesn't do this automatically)
- if (browserElement != null) {
- DOM.setElementAttribute(browserElement, "src",
- "javascript:false");
- }
- }
- super.onDetach();
- }
-
- @Override
- public void onBrowserEvent(Event event) {
- super.onBrowserEvent(event);
- if (DOM.eventGetType(event) == Event.ONLOAD) {
- Util.notifyParentOfSizeChange(this, true);
- }
-
- client.handleTooltipEvent(event, this);
- }
-
- }
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