* TODO needs major refactoring (to be extensible etc)
*/
public class IFilterSelect extends Composite implements Paintable,
- KeyboardListener, ClickListener, FocusListener {
-
- public class FilterSelectSuggestion implements Suggestion, Command {
-
- private String key;
- private String caption;
- private String iconUri;
-
- public FilterSelectSuggestion(UIDL uidl) {
- this.key = uidl.getStringAttribute("key");
- this.caption = uidl.getStringAttribute("caption");
- if (uidl.hasAttribute("icon")) {
- this.iconUri = uidl.getStringAttribute("icon");
- }
- }
-
- public String getDisplayString() {
- StringBuffer sb = new StringBuffer();
- if (iconUri != null) {
- sb.append("<img src=\"");
- sb.append(iconUri);
- sb.append("\" alt=\"icon\" class=\"i-icon\" />");
- }
- sb.append(caption);
- return sb.toString();
- }
-
- public String getReplacementString() {
- return caption;
- }
-
- public int getOptionKey() {
- return Integer.parseInt(key);
- }
-
- public String getIconUri() {
- return iconUri;
- }
-
- public void execute() {
- IFilterSelect.this.onSuggestionSelected(this);
- }
- }
-
- /**
- * @author mattitahvonen
- *
- */
- public class SuggestionPopup extends PopupPanel implements
- PositionCallback, PopupListener {
- private static final int EXTRASPACE = 8;
-
- private static final String Z_INDEX = "30000";
-
- private SuggestionMenu menu;
-
- private Element up = DOM.createDiv();
- private Element down = DOM.createDiv();
- private Element status = DOM.createDiv();
-
- private boolean isPagingEnabled = true;
-
- private long lastAutoClosed;
-
- SuggestionPopup() {
- super(true);
- this.menu = new SuggestionMenu();
- setWidget(menu);
- setStyleName(CLASSNAME + "-suggestpopup");
- DOM.setStyleAttribute(getElement(), "zIndex", Z_INDEX);
-
- Element root = getContainerElement();
-
- DOM.setInnerHTML(up, "<span>Prev</span>");
- DOM.sinkEvents(up, Event.ONCLICK);
- DOM.setInnerHTML(down, "<span>Next</span>");
- DOM.sinkEvents(down, Event.ONCLICK);
- DOM.insertChild(root, up, 0);
- DOM.appendChild(root, down);
- DOM.appendChild(root, status);
- DOM.setElementProperty(status, "className", CLASSNAME + "-status");
-
- this.addPopupListener(this);
- }
-
- public void showSuggestions(Collection currentSuggestions,
- int currentPage, int totalSuggestions) {
- menu.setSuggestions(currentSuggestions);
- int x = IFilterSelect.this.getAbsoluteLeft();
- int y = IFilterSelect.this.tb.getAbsoluteTop();
- y += IFilterSelect.this.tb.getOffsetHeight();
- this.setPopupPosition(x, y);
- int first = currentPage * PAGELENTH + 1;
- int last = first + currentSuggestions.size() - 1;
- DOM.setInnerText(status, first + "-" + last + "/"
- + totalSuggestions);
- setPrevButtonActive(first > 1);
- setNextButtonActive(last < totalSuggestions);
-
- // clear previously fixed width
- menu.setWidth("");
- DOM.setStyleAttribute(DOM.getFirstChild(menu.getElement()),
- "width", "");
-
- setPopupPositionAndShow(this);
- }
-
- private void setNextButtonActive(boolean b) {
- if (b) {
- DOM.sinkEvents(down, Event.ONCLICK);
- DOM.setElementProperty(down, "className", CLASSNAME
- + "-nextpage");
- } else {
- DOM.sinkEvents(down, 0);
- DOM.setElementProperty(down, "className", CLASSNAME
- + "-nextpage-off");
- }
- }
-
- private void setPrevButtonActive(boolean b) {
- if (b) {
- DOM.sinkEvents(up, Event.ONCLICK);
- DOM
- .setElementProperty(up, "className", CLASSNAME
- + "-prevpage");
- } else {
- DOM.sinkEvents(up, 0);
- DOM.setElementProperty(up, "className", CLASSNAME
- + "-prevpage-off");
- }
-
- }
-
- public void selectNextItem() {
- MenuItem cur = menu.getSelectedItem();
- int index = 1 + menu.getItems().indexOf(cur);
- if (menu.getItems().size() > index) {
- MenuItem newSelectedItem = (MenuItem) menu.getItems()
- .get(index);
- menu.selectItem(newSelectedItem);
- tb.setText(newSelectedItem.getText());
- tb.setSelectionRange(lastFilter.length(), newSelectedItem
- .getText().length()
- - lastFilter.length());
-
- } else if (!clientSideFiltering && hasNextPage())
- filterOptions(currentPage + 1);
- }
-
- public void selectPrevItem() {
- MenuItem cur = menu.getSelectedItem();
- int index = -1 + menu.getItems().indexOf(cur);
- if (index > -1) {
- MenuItem newSelectedItem = (MenuItem) menu.getItems()
- .get(index);
- menu.selectItem(newSelectedItem);
- tb.setText(newSelectedItem.getText());
- tb.setSelectionRange(lastFilter.length(), newSelectedItem
- .getText().length()
- - lastFilter.length());
- } else if (index == -1) {
- if (currentPage > 0)
- filterOptions(currentPage - 1);
- } else {
- MenuItem newSelectedItem = (MenuItem) menu.getItems().get(
- menu.getItems().size() - 1);
- menu.selectItem(newSelectedItem);
- tb.setText(newSelectedItem.getText());
- tb.setSelectionRange(lastFilter.length(), newSelectedItem
- .getText().length()
- - lastFilter.length());
- }
- }
-
- public void onBrowserEvent(Event event) {
- Element target = DOM.eventGetTarget(event);
- if (DOM.compare(target, up)
- || DOM.compare(target, DOM.getChild(up, 0))) {
- filterOptions(currentPage - 1, lastFilter);
- } else if (DOM.compare(target, down)
- || DOM.compare(target, DOM.getChild(down, 0))) {
- filterOptions(currentPage + 1, lastFilter);
- }
- tb.setFocus(true);
- }
-
- public void setPagingEnabled(boolean paging) {
- if (isPagingEnabled == paging)
- return;
- if (paging) {
- DOM.setStyleAttribute(this.down, "display", "block");
- DOM.setStyleAttribute(this.up, "display", "block");
- DOM.setStyleAttribute(this.status, "display", "block");
- } else {
- DOM.setStyleAttribute(this.down, "display", "none");
- DOM.setStyleAttribute(this.up, "display", "none");
- DOM.setStyleAttribute(this.status, "display", "none");
- }
- isPagingEnabled = paging;
- }
-
- /*
- * (non-Javadoc)
- *
- * @see com.google.gwt.user.client.ui.PopupPanel$PositionCallback#setPosition(int,
- * int)
- */
- public void setPosition(int offsetWidth, int offsetHeight) {
-
- int top = -1;
- int left = -1;
-
- // reset menu size and retrieve its "natural" size
- menu.setHeight("");
- offsetHeight = getOffsetHeight();
-
- int desiredWidth = IFilterSelect.this.getOffsetWidth();
- int naturalMenuWidth = DOM.getElementPropertyInt(DOM
- .getFirstChild(menu.getElement()), "offsetWidth");
- if (naturalMenuWidth < desiredWidth) {
- menu.setWidth(desiredWidth + "px");
- DOM.setStyleAttribute(DOM.getFirstChild(menu.getElement()),
- "width", "100%");
- naturalMenuWidth = desiredWidth;
- }
- if (Util.isIE()) {
- DOM.setStyleAttribute(getElement(), "width", naturalMenuWidth
- + "px");
- }
-
- if (offsetHeight + getPopupTop() > Window.getClientHeight()) {
- top = Window.getClientHeight() - offsetHeight - EXTRASPACE / 2;
- if (top < 0)
- top = 0;
- } else {
- top = getPopupTop();
- }
-
- // fetch real width (mac FF bugs here due GWT popups overflow:auto )
- offsetWidth = DOM.getElementPropertyInt(DOM.getFirstChild(menu
- .getElement()), "offsetWidth");
- if (offsetWidth + getPopupLeft() > Window.getClientWidth()) {
- left = IFilterSelect.this.getAbsoluteLeft()
- + IFilterSelect.this.getOffsetWidth() - offsetWidth;
- if (left < 0)
- left = 0;
- } else {
- left = getPopupLeft();
- }
- setPopupPosition(left, top);
-
- }
-
- /**
- * @return true if popup was just closed
- */
- public boolean isJustClosed() {
- long now = (new Date()).getTime();
- return (lastAutoClosed > 0 && (now - lastAutoClosed) < 200);
- }
-
- public void onPopupClosed(PopupPanel sender, boolean autoClosed) {
- if (autoClosed) {
- lastAutoClosed = (new Date()).getTime();
- }
- }
-
- }
-
- public class SuggestionMenu extends MenuBar {
-
- SuggestionMenu() {
- super(true);
- setStyleName(CLASSNAME + "-suggestmenu");
- }
-
- public void setSuggestions(Collection suggestions) {
- this.clearItems();
- Iterator it = suggestions.iterator();
- while (it.hasNext()) {
- FilterSelectSuggestion s = (FilterSelectSuggestion) it.next();
- MenuItem mi = new MenuItem(s.getDisplayString(), true, s);
- this.addItem(mi);
- if (s == currentSuggestion)
- selectItem(mi);
- }
- }
-
- public void doSelectedItemAction() {
- MenuItem item = this.getSelectedItem();
- if (item != null
- && item.getText().toLowerCase().startsWith(
- lastFilter.toLowerCase())) {
- doItemAction(item, true);
- } else if (allowNewItem) {
- String newItemValue = tb.getText();
- // check for exact match in menu
- if(this.getItems().size() == 1 ) {
- MenuItem potentialExactMatch = (MenuItem) getItems().get(0);
- if(potentialExactMatch.getText().equals(newItemValue)) {
- this.selectItem(potentialExactMatch);
- this.doSelectedItemAction();
- return;
- }
- } else {
- if (!newItemValue.equals("")) {
- client.updateVariable(paintableId, "newitem", newItemValue,
- true);
- }
- }
- }
- suggestionPopup.hide();
- }
-
- public void setWidth(String width) {
- super.setWidth(width);
- // if(width != null && !width.equals("")) {
- // DOM.setStyleAttribute(DOM.getFirstChild(getElement()), "width",
- // "100%");
- // } else {
- // DOM.setStyleAttribute(DOM.getFirstChild(getElement()), "width",
- // "");
- // }
- }
- }
-
- public static final int FILTERINGMODE_OFF = 0;
- public static final int FILTERINGMODE_STARTSWITH = 1;
- public static final int FILTERINGMODE_CONTAINS = 2;
-
- private static final String CLASSNAME = "i-filterselect";
-
- public static final int PAGELENTH = 10;
-
- private final FlowPanel panel = new FlowPanel();
-
- private final TextBox tb = new TextBox();
-
- private final SuggestionPopup suggestionPopup = new SuggestionPopup();
-
- private final HTML popupOpener = new HTML("");
-
- private final Image selectedItemIcon = new Image();
-
- private ApplicationConnection client;
-
- private String paintableId;
-
- private int currentPage;
-
- private Collection currentSuggestions = new ArrayList();
-
- private boolean immediate;
-
- private String selectedOptionKey;
-
- private boolean filtering = false;
-
- private String lastFilter = "";
-
- private int totalSuggestions;
-
- private FilterSelectSuggestion currentSuggestion;
-
- private boolean clientSideFiltering;
-
- private ArrayList allSuggestions;
- private int totalMatches;
- private boolean allowNewItem;
- private boolean nullSelectionAllowed;
-
- public IFilterSelect() {
- selectedItemIcon.setVisible(false);
- panel.add(selectedItemIcon);
- panel.add(tb);
- panel.add(popupOpener);
- initWidget(panel);
- setStyleName(CLASSNAME);
- tb.addKeyboardListener(this);
- tb.setStyleName(CLASSNAME + "-input");
- tb.addFocusListener(this);
- popupOpener.setStyleName(CLASSNAME + "-button");
- popupOpener.addClickListener(this);
- }
-
- public boolean hasNextPage() {
- if (totalSuggestions > (this.currentPage + 1) * PAGELENTH)
- return true;
- else
- return false;
- }
-
- public void filterOptions(int page) {
- filterOptions(page, tb.getText());
- }
-
- public void filterOptions(int page, String filter) {
- if (filter.equals(lastFilter) && currentPage == page) {
- if (!suggestionPopup.isAttached())
- suggestionPopup.showSuggestions(currentSuggestions,
- currentPage, totalMatches);
- return;
- }
- if (!filter.equals(lastFilter)) {
- // we are on subsequant page and text has changed -> reset page
- page = 0;
- }
- if (clientSideFiltering) {
- currentSuggestions.clear();
- for (Iterator it = allSuggestions.iterator(); it.hasNext();) {
- FilterSelectSuggestion s = (FilterSelectSuggestion) it.next();
- String string = s.getDisplayString().toLowerCase();
- if (string.startsWith(filter.toLowerCase())) {
- currentSuggestions.add(s);
- }
- }
- lastFilter = filter;
- currentPage = page;
- suggestionPopup.showSuggestions(currentSuggestions, page,
- currentSuggestions.size());
- } else {
- filtering = true;
- client.updateVariable(paintableId, "filter", filter, false);
- client.updateVariable(paintableId, "page", page, true);
- lastFilter = filter;
- currentPage = page;
- }
- }
-
- public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
- this.paintableId = uidl.getId();
- this.client = client;
-
- if (client.updateComponent(this, uidl, true))
- return;
-
- immediate = uidl.hasAttribute("immediate");
-
- nullSelectionAllowed = uidl.hasAttribute("nullselect");
-
- if (true) {
- this.suggestionPopup.setPagingEnabled(true);
- clientSideFiltering = false;
- } else {
- this.suggestionPopup.setPagingEnabled(false);
- clientSideFiltering = true;
- }
-
- allowNewItem = uidl.hasAttribute("allownewitem");
-
- currentSuggestions.clear();
- UIDL options = uidl.getChildUIDL(0);
- totalSuggestions = uidl.getIntAttribute("totalitems");
- totalMatches = uidl.getIntAttribute("totalMatches");
-
- String captions = "";
- if (clientSideFiltering) {
- allSuggestions = new ArrayList();
- }
- for (Iterator i = options.getChildIterator(); i.hasNext();) {
- UIDL optionUidl = (UIDL) i.next();
- FilterSelectSuggestion suggestion = new FilterSelectSuggestion(
- optionUidl);
- currentSuggestions.add(suggestion);
- if (clientSideFiltering) {
- allSuggestions.add(suggestion);
- }
- if (!filtering && optionUidl.hasAttribute("selected")) {
- tb.setText(suggestion.getReplacementString());
- currentSuggestion = suggestion;
- }
-
- // Collect captions so we can calculate minimum width for textarea
- if (captions.length() > 0)
- captions += "|";
- captions += suggestion.getReplacementString();
- }
-
- if (filtering && lastFilter.equals(uidl.getStringVariable("filter"))) {
- suggestionPopup.showSuggestions(currentSuggestions, currentPage,
- totalMatches);
- filtering = false;
- }
-
- // Calculate minumum textarea width
- int minw = minWidth(captions);
- Element spacer = DOM.createDiv();
- DOM.setStyleAttribute(spacer, "width", minw + "px");
- DOM.setStyleAttribute(spacer, "height", "0");
- DOM.setStyleAttribute(spacer, "overflow", "hidden");
- DOM.appendChild(panel.getElement(), spacer);
-
- // Set columns (width) is given
- if (uidl.hasAttribute("cols"))
- DOM.setStyleAttribute(getElement(), "width", uidl
- .getIntAttribute("cols")
- + "em");
-
- }
-
- public void onSuggestionSelected(FilterSelectSuggestion suggestion) {
- currentSuggestion = suggestion;
- String newKey;
- if (suggestion.key.equals("")) {
- // "nullselection"
- newKey = "";
- } else {
- // normal selection
- newKey = String.valueOf(suggestion.getOptionKey());
- }
- tb.setText(suggestion.getReplacementString());
- setSelectedItemIcon(suggestion.getIconUri());
- if (!newKey.equals(selectedOptionKey)) {
- selectedOptionKey = newKey;
- client.updateVariable(paintableId, "selected",
- new String[] { selectedOptionKey }, immediate);
- lastFilter = tb.getText();
- }
- suggestionPopup.hide();
- }
-
- private void setSelectedItemIcon(String iconUri) {
- if (iconUri == null) {
- selectedItemIcon.setVisible(false);
- } else {
- selectedItemIcon.setUrl(iconUri);
- selectedItemIcon.setVisible(true);
- }
- }
-
- public void onKeyDown(Widget sender, char keyCode, int modifiers) {
- if (suggestionPopup.isAttached()) {
- switch (keyCode) {
- case KeyboardListener.KEY_DOWN:
- suggestionPopup.selectNextItem();
- DOM.eventPreventDefault(DOM.eventGetCurrentEvent());
- break;
- case KeyboardListener.KEY_UP:
- suggestionPopup.selectPrevItem();
- DOM.eventPreventDefault(DOM.eventGetCurrentEvent());
- break;
- case KeyboardListener.KEY_PAGEDOWN:
- if (hasNextPage())
- filterOptions(currentPage + 1, lastFilter);
- break;
- case KeyboardListener.KEY_PAGEUP:
- if (currentPage > 0)
- filterOptions(currentPage - 1, lastFilter);
- break;
- case KeyboardListener.KEY_ENTER:
- case KeyboardListener.KEY_TAB:
- suggestionPopup.menu.doSelectedItemAction();
- break;
- }
- }
- }
-
- public void onKeyPress(Widget sender, char keyCode, int modifiers) {
-
- }
-
- public void onKeyUp(Widget sender, char keyCode, int modifiers) {
- switch (keyCode) {
- case KeyboardListener.KEY_ENTER:
- case KeyboardListener.KEY_TAB:
- ; // NOP
- break;
- case KeyboardListener.KEY_DOWN:
- case KeyboardListener.KEY_UP:
- case KeyboardListener.KEY_PAGEDOWN:
- case KeyboardListener.KEY_PAGEUP:
- if (suggestionPopup.isAttached()) {
- break;
- } else {
- // open popup as from gadget
- filterOptions(0, "");
- tb.selectAll();
- break;
- }
- default:
- filterOptions(currentPage);
- break;
- }
- }
-
- /**
- * Listener for popupopener
- */
- public void onClick(Widget sender) {
- // ask suggestionPopup if it was just closed, we are using GWT Popup's
- // auto close feature
- if (!suggestionPopup.isJustClosed()) {
- filterOptions(0, "");
- }
- DOM.eventPreventDefault(DOM.eventGetCurrentEvent());
- tb.selectAll();
- tb.setFocus(true);
- }
-
- /*
- * Calculate minumum width for FilterSelect textarea
- */
- private native int minWidth(String captions) /*-{
- if(!captions || captions.length <= 0)
- return 0;
- captions = captions.split("|");
- var d = $wnd.document.createElement("div");
- var html = "";
- for(var i=0; i < captions.length; i++) {
- html += "<div>" + captions[i] + "</div>";
- // TODO apply same CSS classname as in suggestionmenu
- }
- d.style.position = "absolute";
- d.style.top = "0";
- d.style.left = "0";
- d.style.visibility = "hidden";
- d.innerHTML = html;
- $wnd.document.body.appendChild(d);
- var w = d.offsetWidth;
- $wnd.document.body.removeChild(d);
- return w;
- }-*/;
-
- public void onFocus(Widget sender) {
- // NOP
- }
-
- public void onLostFocus(Widget sender) {
- if(currentSuggestion == null || !tb.getText().equals(currentSuggestion.getReplacementString())) {
- if(currentSuggestion != null) {
- tb.setText(currentSuggestion.getDisplayString());
- } else {
- tb.setText("-");
- }
- }
- }
+ KeyboardListener, ClickListener, FocusListener {
+
+ public class FilterSelectSuggestion implements Suggestion, Command {
+
+ private String key;
+ private String caption;
+ private String iconUri;
+
+ public FilterSelectSuggestion(UIDL uidl) {
+ key = uidl.getStringAttribute("key");
+ caption = uidl.getStringAttribute("caption");
+ if (uidl.hasAttribute("icon")) {
+ iconUri = uidl.getStringAttribute("icon");
+ }
+ }
+
+ public String getDisplayString() {
+ StringBuffer sb = new StringBuffer();
+ if (iconUri != null) {
+ sb.append("<img src=\"");
+ sb.append(iconUri);
+ sb.append("\" alt=\"icon\" class=\"i-icon\" />");
+ }
+ sb.append(caption);
+ return sb.toString();
+ }
+
+ public String getReplacementString() {
+ return caption;
+ }
+
+ public int getOptionKey() {
+ return Integer.parseInt(key);
+ }
+
+ public String getIconUri() {
+ return iconUri;
+ }
+
+ public void execute() {
+ onSuggestionSelected(this);
+ }
+ }
+
+ /**
+ * @author mattitahvonen
+ *
+ */
+ public class SuggestionPopup extends PopupPanel implements
+ PositionCallback, PopupListener {
+ private static final int EXTRASPACE = 8;
+
+ private static final String Z_INDEX = "30000";
+
+ private SuggestionMenu menu;
+
+ private Element up = DOM.createDiv();
+ private Element down = DOM.createDiv();
+ private Element status = DOM.createDiv();
+
+ private boolean isPagingEnabled = true;
+
+ private long lastAutoClosed;
+
+ SuggestionPopup() {
+ super(true);
+ menu = new SuggestionMenu();
+ setWidget(menu);
+ setStyleName(CLASSNAME + "-suggestpopup");
+ DOM.setStyleAttribute(getElement(), "zIndex", Z_INDEX);
+
+ Element root = getContainerElement();
+
+ DOM.setInnerHTML(up, "<span>Prev</span>");
+ DOM.sinkEvents(up, Event.ONCLICK);
+ DOM.setInnerHTML(down, "<span>Next</span>");
+ DOM.sinkEvents(down, Event.ONCLICK);
+ DOM.insertChild(root, up, 0);
+ DOM.appendChild(root, down);
+ DOM.appendChild(root, status);
+ DOM.setElementProperty(status, "className", CLASSNAME + "-status");
+
+ addPopupListener(this);
+ }
+
+ public void showSuggestions(Collection currentSuggestions,
+ int currentPage, int totalSuggestions) {
+ menu.setSuggestions(currentSuggestions);
+ int x = IFilterSelect.this.getAbsoluteLeft();
+ int y = tb.getAbsoluteTop();
+ y += tb.getOffsetHeight();
+ setPopupPosition(x, y);
+ int first = currentPage * PAGELENTH + 1;
+ int last = first + currentSuggestions.size() - 1;
+ DOM.setInnerText(status, first + "-" + last + "/"
+ + totalSuggestions);
+ setPrevButtonActive(first > 1);
+ setNextButtonActive(last < totalSuggestions);
+
+ // clear previously fixed width
+ menu.setWidth("");
+ DOM.setStyleAttribute(DOM.getFirstChild(menu.getElement()),
+ "width", "");
+
+ setPopupPositionAndShow(this);
+ }
+
+ private void setNextButtonActive(boolean b) {
+ if (b) {
+ DOM.sinkEvents(down, Event.ONCLICK);
+ DOM.setElementProperty(down, "className", CLASSNAME
+ + "-nextpage");
+ } else {
+ DOM.sinkEvents(down, 0);
+ DOM.setElementProperty(down, "className", CLASSNAME
+ + "-nextpage-off");
+ }
+ }
+
+ private void setPrevButtonActive(boolean b) {
+ if (b) {
+ DOM.sinkEvents(up, Event.ONCLICK);
+ DOM
+ .setElementProperty(up, "className", CLASSNAME
+ + "-prevpage");
+ } else {
+ DOM.sinkEvents(up, 0);
+ DOM.setElementProperty(up, "className", CLASSNAME
+ + "-prevpage-off");
+ }
+
+ }
+
+ public void selectNextItem() {
+ MenuItem cur = menu.getSelectedItem();
+ int index = 1 + menu.getItems().indexOf(cur);
+ if (menu.getItems().size() > index) {
+ MenuItem newSelectedItem = (MenuItem) menu.getItems()
+ .get(index);
+ menu.selectItem(newSelectedItem);
+ tb.setText(newSelectedItem.getText());
+ tb.setSelectionRange(lastFilter.length(), newSelectedItem
+ .getText().length()
+ - lastFilter.length());
+
+ } else if (!clientSideFiltering && hasNextPage()) {
+ filterOptions(currentPage + 1);
+ }
+ }
+
+ public void selectPrevItem() {
+ MenuItem cur = menu.getSelectedItem();
+ int index = -1 + menu.getItems().indexOf(cur);
+ if (index > -1) {
+ MenuItem newSelectedItem = (MenuItem) menu.getItems()
+ .get(index);
+ menu.selectItem(newSelectedItem);
+ tb.setText(newSelectedItem.getText());
+ tb.setSelectionRange(lastFilter.length(), newSelectedItem
+ .getText().length()
+ - lastFilter.length());
+ } else if (index == -1) {
+ if (currentPage > 0) {
+ filterOptions(currentPage - 1);
+ }
+ } else {
+ MenuItem newSelectedItem = (MenuItem) menu.getItems().get(
+ menu.getItems().size() - 1);
+ menu.selectItem(newSelectedItem);
+ tb.setText(newSelectedItem.getText());
+ tb.setSelectionRange(lastFilter.length(), newSelectedItem
+ .getText().length()
+ - lastFilter.length());
+ }
+ }
+
+ public void onBrowserEvent(Event event) {
+ Element target = DOM.eventGetTarget(event);
+ if (DOM.compare(target, up)
+ || DOM.compare(target, DOM.getChild(up, 0))) {
+ filterOptions(currentPage - 1, lastFilter);
+ } else if (DOM.compare(target, down)
+ || DOM.compare(target, DOM.getChild(down, 0))) {
+ filterOptions(currentPage + 1, lastFilter);
+ }
+ tb.setFocus(true);
+ }
+
+ public void setPagingEnabled(boolean paging) {
+ if (isPagingEnabled == paging) {
+ return;
+ }
+ if (paging) {
+ DOM.setStyleAttribute(down, "display", "block");
+ DOM.setStyleAttribute(up, "display", "block");
+ DOM.setStyleAttribute(status, "display", "block");
+ } else {
+ DOM.setStyleAttribute(down, "display", "none");
+ DOM.setStyleAttribute(up, "display", "none");
+ DOM.setStyleAttribute(status, "display", "none");
+ }
+ isPagingEnabled = paging;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see com.google.gwt.user.client.ui.PopupPanel$PositionCallback#setPosition(int,
+ * int)
+ */
+ public void setPosition(int offsetWidth, int offsetHeight) {
+
+ int top = -1;
+ int left = -1;
+
+ // reset menu size and retrieve its "natural" size
+ menu.setHeight("");
+ offsetHeight = getOffsetHeight();
+
+ int desiredWidth = IFilterSelect.this.getOffsetWidth();
+ int naturalMenuWidth = DOM.getElementPropertyInt(DOM
+ .getFirstChild(menu.getElement()), "offsetWidth");
+ if (naturalMenuWidth < desiredWidth) {
+ menu.setWidth(desiredWidth + "px");
+ DOM.setStyleAttribute(DOM.getFirstChild(menu.getElement()),
+ "width", "100%");
+ naturalMenuWidth = desiredWidth;
+ }
+ if (Util.isIE()) {
+ DOM.setStyleAttribute(getElement(), "width", naturalMenuWidth
+ + "px");
+ }
+
+ if (offsetHeight + getPopupTop() > Window.getClientHeight()
+ + Window.getScrollTop()) {
+ top = Window.getClientHeight() + Window.getScrollTop()
+ - offsetHeight - EXTRASPACE
+ - IFilterSelect.this.getOffsetHeight();
+ if (top < 0) {
+ top = 0;
+ }
+ } else {
+ top = getPopupTop();
+ }
+
+ // fetch real width (mac FF bugs here due GWT popups overflow:auto )
+ offsetWidth = DOM.getElementPropertyInt(DOM.getFirstChild(menu
+ .getElement()), "offsetWidth");
+ if (offsetWidth + getPopupLeft() > Window.getClientWidth()
+ + Window.getScrollLeft()) {
+ left = IFilterSelect.this.getAbsoluteLeft()
+ + IFilterSelect.this.getOffsetWidth()
+ + Window.getScrollLeft() - offsetWidth;
+ if (left < 0) {
+ left = 0;
+ }
+ } else {
+ left = getPopupLeft();
+ }
+ setPopupPosition(left, top);
+
+ }
+
+ /**
+ * @return true if popup was just closed
+ */
+ public boolean isJustClosed() {
+ long now = (new Date()).getTime();
+ return (lastAutoClosed > 0 && (now - lastAutoClosed) < 200);
+ }
+
+ public void onPopupClosed(PopupPanel sender, boolean autoClosed) {
+ if (autoClosed) {
+ lastAutoClosed = (new Date()).getTime();
+ }
+ }
+
+ }
+
+ public class SuggestionMenu extends MenuBar {
+
+ SuggestionMenu() {
+ super(true);
+ setStyleName(CLASSNAME + "-suggestmenu");
+ }
+
+ public void setSuggestions(Collection suggestions) {
+ clearItems();
+ Iterator it = suggestions.iterator();
+ while (it.hasNext()) {
+ FilterSelectSuggestion s = (FilterSelectSuggestion) it.next();
+ MenuItem mi = new MenuItem(s.getDisplayString(), true, s);
+ this.addItem(mi);
+ if (s == currentSuggestion) {
+ selectItem(mi);
+ }
+ }
+ }
+
+ public void doSelectedItemAction() {
+ MenuItem item = getSelectedItem();
+ if (item != null
+ && item.getText().toLowerCase().startsWith(
+ lastFilter.toLowerCase())) {
+ doItemAction(item, true);
+ } else if (allowNewItem) {
+ String newItemValue = tb.getText();
+ // check for exact match in menu
+ if (getItems().size() == 1) {
+ MenuItem potentialExactMatch = (MenuItem) getItems().get(0);
+ if (potentialExactMatch.getText().equals(newItemValue)) {
+ selectItem(potentialExactMatch);
+ doSelectedItemAction();
+ return;
+ }
+ } else {
+ if (!newItemValue.equals("")) {
+ client.updateVariable(paintableId, "newitem",
+ newItemValue, true);
+ }
+ }
+ }
+ suggestionPopup.hide();
+ }
+
+ public void setWidth(String width) {
+ super.setWidth(width);
+ // if(width != null && !width.equals("")) {
+ // DOM.setStyleAttribute(DOM.getFirstChild(getElement()), "width",
+ // "100%");
+ // } else {
+ // DOM.setStyleAttribute(DOM.getFirstChild(getElement()), "width",
+ // "");
+ // }
+ }
+ }
+
+ public static final int FILTERINGMODE_OFF = 0;
+ public static final int FILTERINGMODE_STARTSWITH = 1;
+ public static final int FILTERINGMODE_CONTAINS = 2;
+
+ private static final String CLASSNAME = "i-filterselect";
+
+ public static final int PAGELENTH = 10;
+
+ private final FlowPanel panel = new FlowPanel();
+
+ private final TextBox tb = new TextBox();
+
+ private final SuggestionPopup suggestionPopup = new SuggestionPopup();
+
+ private final HTML popupOpener = new HTML("");
+
+ private final Image selectedItemIcon = new Image();
+
+ private ApplicationConnection client;
+
+ private String paintableId;
+
+ private int currentPage;
+
+ private Collection currentSuggestions = new ArrayList();
+
+ private boolean immediate;
+
+ private String selectedOptionKey;
+
+ private boolean filtering = false;
+
+ private String lastFilter = "";
+
+ private int totalSuggestions;
+
+ private FilterSelectSuggestion currentSuggestion;
+
+ private boolean clientSideFiltering;
+
+ private ArrayList allSuggestions;
+ private int totalMatches;
+ private boolean allowNewItem;
+ private boolean nullSelectionAllowed;
+
+ public IFilterSelect() {
+ selectedItemIcon.setVisible(false);
+ panel.add(selectedItemIcon);
+ panel.add(tb);
+ panel.add(popupOpener);
+ initWidget(panel);
+ setStyleName(CLASSNAME);
+ tb.addKeyboardListener(this);
+ tb.setStyleName(CLASSNAME + "-input");
+ tb.addFocusListener(this);
+ popupOpener.setStyleName(CLASSNAME + "-button");
+ popupOpener.addClickListener(this);
+ }
+
+ public boolean hasNextPage() {
+ if (totalSuggestions > (currentPage + 1) * PAGELENTH) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ public void filterOptions(int page) {
+ filterOptions(page, tb.getText());
+ }
+
+ public void filterOptions(int page, String filter) {
+ if (filter.equals(lastFilter) && currentPage == page) {
+ if (!suggestionPopup.isAttached()) {
+ suggestionPopup.showSuggestions(currentSuggestions,
+ currentPage, totalMatches);
+ }
+ return;
+ }
+ if (!filter.equals(lastFilter)) {
+ // we are on subsequant page and text has changed -> reset page
+ page = 0;
+ }
+ if (clientSideFiltering) {
+ currentSuggestions.clear();
+ for (Iterator it = allSuggestions.iterator(); it.hasNext();) {
+ FilterSelectSuggestion s = (FilterSelectSuggestion) it.next();
+ String string = s.getDisplayString().toLowerCase();
+ if (string.startsWith(filter.toLowerCase())) {
+ currentSuggestions.add(s);
+ }
+ }
+ lastFilter = filter;
+ currentPage = page;
+ suggestionPopup.showSuggestions(currentSuggestions, page,
+ currentSuggestions.size());
+ } else {
+ filtering = true;
+ client.updateVariable(paintableId, "filter", filter, false);
+ client.updateVariable(paintableId, "page", page, true);
+ lastFilter = filter;
+ currentPage = page;
+ }
+ }
+
+ public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
+ paintableId = uidl.getId();
+ this.client = client;
+
+ if (client.updateComponent(this, uidl, true)) {
+ return;
+ }
+
+ immediate = uidl.hasAttribute("immediate");
+
+ nullSelectionAllowed = uidl.hasAttribute("nullselect");
+
+ if (true) {
+ suggestionPopup.setPagingEnabled(true);
+ clientSideFiltering = false;
+ } else {
+ suggestionPopup.setPagingEnabled(false);
+ clientSideFiltering = true;
+ }
+
+ allowNewItem = uidl.hasAttribute("allownewitem");
+
+ currentSuggestions.clear();
+ UIDL options = uidl.getChildUIDL(0);
+ totalSuggestions = uidl.getIntAttribute("totalitems");
+ totalMatches = uidl.getIntAttribute("totalMatches");
+
+ String captions = "";
+ if (clientSideFiltering) {
+ allSuggestions = new ArrayList();
+ }
+ for (Iterator i = options.getChildIterator(); i.hasNext();) {
+ UIDL optionUidl = (UIDL) i.next();
+ FilterSelectSuggestion suggestion = new FilterSelectSuggestion(
+ optionUidl);
+ currentSuggestions.add(suggestion);
+ if (clientSideFiltering) {
+ allSuggestions.add(suggestion);
+ }
+ if (!filtering && optionUidl.hasAttribute("selected")) {
+ tb.setText(suggestion.getReplacementString());
+ currentSuggestion = suggestion;
+ }
+
+ // Collect captions so we can calculate minimum width for textarea
+ if (captions.length() > 0) {
+ captions += "|";
+ }
+ captions += suggestion.getReplacementString();
+ }
+
+ if (filtering && lastFilter.equals(uidl.getStringVariable("filter"))) {
+ suggestionPopup.showSuggestions(currentSuggestions, currentPage,
+ totalMatches);
+ filtering = false;
+ }
+
+ // Calculate minumum textarea width
+ int minw = minWidth(captions);
+ Element spacer = DOM.createDiv();
+ DOM.setStyleAttribute(spacer, "width", minw + "px");
+ DOM.setStyleAttribute(spacer, "height", "0");
+ DOM.setStyleAttribute(spacer, "overflow", "hidden");
+ DOM.appendChild(panel.getElement(), spacer);
+
+ // Set columns (width) is given
+ if (uidl.hasAttribute("cols")) {
+ DOM.setStyleAttribute(getElement(), "width", uidl
+ .getIntAttribute("cols")
+ + "em");
+ }
+
+ }
+
+ public void onSuggestionSelected(FilterSelectSuggestion suggestion) {
+ currentSuggestion = suggestion;
+ String newKey;
+ if (suggestion.key.equals("")) {
+ // "nullselection"
+ newKey = "";
+ } else {
+ // normal selection
+ newKey = String.valueOf(suggestion.getOptionKey());
+ }
+ tb.setText(suggestion.getReplacementString());
+ setSelectedItemIcon(suggestion.getIconUri());
+ if (!newKey.equals(selectedOptionKey)) {
+ selectedOptionKey = newKey;
+ client.updateVariable(paintableId, "selected",
+ new String[] { selectedOptionKey }, immediate);
+ lastFilter = tb.getText();
+ }
+ suggestionPopup.hide();
+ }
+
+ private void setSelectedItemIcon(String iconUri) {
+ if (iconUri == null) {
+ selectedItemIcon.setVisible(false);
+ } else {
+ selectedItemIcon.setUrl(iconUri);
+ selectedItemIcon.setVisible(true);
+ }
+ }
+
+ public void onKeyDown(Widget sender, char keyCode, int modifiers) {
+ if (suggestionPopup.isAttached()) {
+ switch (keyCode) {
+ case KeyboardListener.KEY_DOWN:
+ suggestionPopup.selectNextItem();
+ DOM.eventPreventDefault(DOM.eventGetCurrentEvent());
+ break;
+ case KeyboardListener.KEY_UP:
+ suggestionPopup.selectPrevItem();
+ DOM.eventPreventDefault(DOM.eventGetCurrentEvent());
+ break;
+ case KeyboardListener.KEY_PAGEDOWN:
+ if (hasNextPage()) {
+ filterOptions(currentPage + 1, lastFilter);
+ }
+ break;
+ case KeyboardListener.KEY_PAGEUP:
+ if (currentPage > 0) {
+ filterOptions(currentPage - 1, lastFilter);
+ }
+ break;
+ case KeyboardListener.KEY_ENTER:
+ case KeyboardListener.KEY_TAB:
+ suggestionPopup.menu.doSelectedItemAction();
+ break;
+ }
+ }
+ }
+
+ public void onKeyPress(Widget sender, char keyCode, int modifiers) {
+
+ }
+
+ public void onKeyUp(Widget sender, char keyCode, int modifiers) {
+ switch (keyCode) {
+ case KeyboardListener.KEY_ENTER:
+ case KeyboardListener.KEY_TAB:
+ ; // NOP
+ break;
+ case KeyboardListener.KEY_DOWN:
+ case KeyboardListener.KEY_UP:
+ case KeyboardListener.KEY_PAGEDOWN:
+ case KeyboardListener.KEY_PAGEUP:
+ if (suggestionPopup.isAttached()) {
+ break;
+ } else {
+ // open popup as from gadget
+ filterOptions(0, "");
+ tb.selectAll();
+ break;
+ }
+ default:
+ filterOptions(currentPage);
+ break;
+ }
+ }
+
+ /**
+ * Listener for popupopener
+ */
+ public void onClick(Widget sender) {
+ // ask suggestionPopup if it was just closed, we are using GWT Popup's
+ // auto close feature
+ if (!suggestionPopup.isJustClosed()) {
+ filterOptions(0, "");
+ }
+ DOM.eventPreventDefault(DOM.eventGetCurrentEvent());
+ tb.selectAll();
+ tb.setFocus(true);
+ }
+
+ /*
+ * Calculate minumum width for FilterSelect textarea
+ */
+ private native int minWidth(String captions) /*-{
+ if(!captions || captions.length <= 0)
+ return 0;
+ captions = captions.split("|");
+ var d = $wnd.document.createElement("div");
+ var html = "";
+ for(var i=0; i < captions.length; i++) {
+ html += "<div>" + captions[i] + "</div>";
+ // TODO apply same CSS classname as in suggestionmenu
+ }
+ d.style.position = "absolute";
+ d.style.top = "0";
+ d.style.left = "0";
+ d.style.visibility = "hidden";
+ d.innerHTML = html;
+ $wnd.document.body.appendChild(d);
+ var w = d.offsetWidth;
+ $wnd.document.body.removeChild(d);
+ return w;
+ }-*/;
+
+ public void onFocus(Widget sender) {
+ // NOP
+ }
+
+ public void onLostFocus(Widget sender) {
+ if (currentSuggestion == null
+ || !tb.getText().equals(
+ currentSuggestion.getReplacementString())) {
+ if (currentSuggestion != null) {
+ tb.setText(currentSuggestion.getDisplayString());
+ } else {
+ tb.setText("-");
+ }
+ }
+ }
}
projects / vaadin-framework.git / commitdiff