diff options
Diffstat (limited to 'src/com/vaadin/terminal/gwt/client/VTooltip.java')
| -rw-r--r-- | src/com/vaadin/terminal/gwt/client/VTooltip.java | 214 |
1 files changed, 155 insertions, 59 deletions
diff --git a/src/com/vaadin/terminal/gwt/client/VTooltip.java b/src/com/vaadin/terminal/gwt/client/VTooltip.java index 70f4a0de0a..7fd3a3238b 100644 --- a/src/com/vaadin/terminal/gwt/client/VTooltip.java +++ b/src/com/vaadin/terminal/gwt/client/VTooltip.java @@ -3,12 +3,19 @@ */ package com.vaadin.terminal.gwt.client; +import com.google.gwt.event.dom.client.ClickEvent; +import com.google.gwt.event.dom.client.ClickHandler; +import com.google.gwt.event.dom.client.KeyDownEvent; +import com.google.gwt.event.dom.client.KeyDownHandler; +import com.google.gwt.event.dom.client.MouseMoveEvent; +import com.google.gwt.event.dom.client.MouseMoveHandler; 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.Timer; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.FlowPanel; +import com.google.gwt.user.client.ui.Widget; import com.vaadin.terminal.gwt.client.ui.VOverlay; /** @@ -27,15 +34,12 @@ public class VTooltip extends VOverlay { private static final int QUICK_OPEN_DELAY = 100; VErrorMessage em = new VErrorMessage(); Element description = DOM.createDiv(); - private ComponentConnector tooltipOwner; private boolean closing = false; private boolean opening = false; private ApplicationConnection ac; // Open next tooltip faster. Disabled after 2 sec of showTooltip-silence. private boolean justClosed = false; - // If this is "additional" tooltip, this field contains the key for it - private Object tooltipKey; public VTooltip(ApplicationConnection client) { super(false, false, true); @@ -115,51 +119,30 @@ public class VTooltip extends VOverlay { } } - public void showTooltip(ComponentConnector owner, Event event, Object key) { - if (closing && tooltipOwner == owner && tooltipKey == key) { - // return to same tooltip, cancel closing - closeTimer.cancel(); - closing = false; - justClosedTimer.cancel(); - justClosed = false; - return; - } + private void showTooltip() { - if (closing) { + // Close current tooltip + if (isShowing()) { closeNow(); } - updatePosition(event); - - if (opening) { - showTimer.cancel(); - } - tooltipOwner = owner; - tooltipKey = key; - // Schedule timer for showing the tooltip according to if it was // recently closed or not. - if (justClosed) { - showTimer.schedule(QUICK_OPEN_DELAY); - } else { - showTimer.schedule(OPEN_DELAY); - } + int timeout = justClosed ? QUICK_OPEN_DELAY : OPEN_DELAY; + showTimer.schedule(timeout); opening = true; } private void closeNow() { - if (closing) { - hide(); - tooltipOwner = null; - setWidth(""); - closing = false; - } + hide(); + setWidth(""); + closing = false; } private Timer showTimer = new Timer() { @Override public void run() { - TooltipInfo info = ac.getTooltipTitleInfo(tooltipOwner, tooltipKey); + TooltipInfo info = tooltipEventHandler.getTooltipInfo(); if (null != info) { show(info); } @@ -187,7 +170,6 @@ public class VTooltip extends VOverlay { if (opening) { showTimer.cancel(); opening = false; - tooltipOwner = null; } if (!isAttached()) { return; @@ -209,24 +191,6 @@ public class VTooltip extends VOverlay { public void updatePosition(Event event) { tooltipEventMouseX = DOM.eventGetClientX(event); tooltipEventMouseY = DOM.eventGetClientY(event); - - } - - public void handleTooltipEvent(Event event, ComponentConnector owner, - Object key) { - final int type = DOM.eventGetType(event); - if ((VTooltip.TOOLTIP_EVENTS & type) == type) { - if (type == Event.ONMOUSEOVER) { - showTooltip(owner, event, key); - } else if (type == Event.ONMOUSEMOVE) { - updatePosition(event); - } else { - hideTooltip(); - } - } else { - // non-tooltip event, hide tooltip - hideTooltip(); - } } @Override @@ -235,17 +199,149 @@ public class VTooltip extends VOverlay { // cancel closing event if tooltip is mouseovered; the user might want // to scroll of cut&paste - switch (type) { - case Event.ONMOUSEOVER: + if (type == Event.ONMOUSEOVER) { + // Cancel closing so tooltip stays open and user can copy paste the + // tooltip closeTimer.cancel(); closing = false; - break; - case Event.ONMOUSEOUT: + } + } + + /** + * Replace current open tooltip with new content + */ + public void replaceCurrentTooltip() { + if (closing) { + closeTimer.cancel(); + closeNow(); + } + + TooltipInfo info = tooltipEventHandler.getTooltipInfo(); + if (null != info) { + show(info); + } + opening = false; + } + + private class TooltipEventHandler implements MouseMoveHandler, + ClickHandler, KeyDownHandler { + + /** + * Current element hovered + */ + private com.google.gwt.dom.client.Element currentElement = null; + + /** + * Current tooltip active + */ + private TooltipInfo currentTooltipInfo = null; + + /** + * Get current active tooltip information + * + * @return Current active tooltip information or null + */ + public TooltipInfo getTooltipInfo() { + return currentTooltipInfo; + } + + /** + * Locate connector and it's tooltip for given element + * + * @param element + * Element used in search + * @return true if connector and tooltip found + */ + private boolean resolveConnector(Element element) { + + ComponentConnector connector = Util.getConnectorForElement(ac, ac + .getRootConnector().getWidget(), element); + + // Try to find first connector with proper tooltip info + TooltipInfo info = null; + while (connector != null) { + + info = connector.getTooltipInfo(element); + + if (info != null && info.hasMessage()) { + break; + } + + if (!(connector.getParent() instanceof ComponentConnector)) { + connector = null; + info = null; + break; + } + connector = (ComponentConnector) connector.getParent(); + } + + if (connector != null && info != null) { + currentTooltipInfo = info; + return true; + } + + return false; + } + + /** + * Handle hide event + * + * @param event + * Event causing hide + */ + private void handleHideEvent() { hideTooltip(); - break; - default: - // NOP + currentTooltipInfo = null; + } + + public void onMouseMove(MouseMoveEvent mme) { + Event event = Event.as(mme.getNativeEvent()); + com.google.gwt.dom.client.Element element = Element.as(event + .getEventTarget()); + + // We can ignore move event if it's handled by move or over already + if (currentElement == element) { + return; + } + currentElement = element; + + boolean connectorAndTooltipFound = resolveConnector((com.google.gwt.user.client.Element) element); + if (!connectorAndTooltipFound) { + if (isShowing()) { + handleHideEvent(); + } else { + currentTooltipInfo = null; + } + } else { + updatePosition(event); + if (isShowing()) { + replaceCurrentTooltip(); + } else { + showTooltip(); + } + } + } + + public void onClick(ClickEvent event) { + handleHideEvent(); + } + + public void onKeyDown(KeyDownEvent event) { + handleHideEvent(); } } + private final TooltipEventHandler tooltipEventHandler = new TooltipEventHandler(); + + /** + * Connects DOM handlers to widget that are needed for tooltip presentation. + * + * @param widget + * Widget which DOM handlers are connected + */ + public void connectHandlersToWidget(Widget widget) { + widget.addDomHandler(tooltipEventHandler, MouseMoveEvent.getType()); + widget.addDomHandler(tooltipEventHandler, ClickEvent.getType()); + widget.addDomHandler(tooltipEventHandler, KeyDownEvent.getType()); + } } |