com.vaadin.client.BrowserInfo Java Examples

@Override
public void onFocus(FocusEvent event) {
	debug("VComboBoxMultiselect: onFocus()");

	/*
	 * When we disable a blur event in ie we need to refocus the textfield.
	 * This will cause a focus event we do not want to process, so in that
	 * case we just ignore it.
	 */
	if (BrowserInfo.get()
		.isIE() && this.iePreventNextFocus) {
		this.iePreventNextFocus = false;
		return;
	}

	this.focused = true;
	updatePlaceholder();
	addStyleDependentName("focus");

	this.connector.sendFocusEvent();

	this.connector.getConnection()
		.getVTooltip()
		.showAssistive(this.connector.getTooltipInfo(getElement()));
}
 

public CubaSideMenuWidget() {
    setStylePrimaryName(CLASS_NAME);

    sinkEvents(Event.ONMOUSEOVER | Event.ONMOUSEOUT);

    // Navigation is only handled by the root bar
    addFocusHandler(this);
    addBlurHandler(this);

    /*
     * Firefox auto-repeat works correctly only if we use a key press
     * handler, other browsers handle it correctly when using a key down handler
     */
    if (BrowserInfo.get().isGecko() && BrowserInfo.get().getGeckoVersion() < 65.0) {
        addKeyPressHandler(this);
    } else {
        addKeyDownHandler(this);
    }
}
 

@Override
public void onFocus(FocusEvent event) {
	debug("VComboBoxMultiselect: onFocus()");

	/*
	 * When we disable a blur event in ie we need to refocus the textfield.
	 * This will cause a focus event we do not want to process, so in that
	 * case we just ignore it.
	 */
	if (BrowserInfo.get()
		.isIE() && this.iePreventNextFocus) {
		this.iePreventNextFocus = false;
		return;
	}

	this.focused = true;
	updatePlaceholder();
	addStyleDependentName("focus");

	this.connector.sendFocusEvent();

	this.connector.getConnection()
		.getVTooltip()
		.showAssistive(this.connector.getTooltipInfo(getElement()));
}
 

public void setCellWidth(int cellIx, int width) {
    // CAUTION: copied from VScrollTableRow with small changes
    final Element cell = DOM.getChild(tr, cellIx);
    Style wrapperStyle = cell.getFirstChildElement().getStyle();
    int wrapperWidth = width;
    if (BrowserInfo.get().isWebkit()
            || BrowserInfo.get().isOpera10()) {
        /*
         * Some versions of Webkit and Opera ignore the width
         * definition of zero width table cells. Instead, use 1px
         * and compensate with a negative margin.
         */
        if (width == 0) {
            wrapperWidth = 1;
            wrapperStyle.setMarginRight(-1, Style.Unit.PX);
        } else {
            wrapperStyle.clearMarginRight();
        }
    }
    wrapperStyle.setPropertyPx("width", wrapperWidth);
    cell.getStyle().setPropertyPx("width", width);
}
 

@Override
public void onClick(ClickEvent event) {
    if (!isEnabled() || isReadonly()) {
        event.preventDefault();

        if (isReadonly()
                && (BrowserInfo.get().isIE() || BrowserInfo.get().isEdge())) {
            // IE and Edge do not focus read-only checkbox on click
            Object checkBox = event.getSource();
            if (checkBox instanceof VCheckBox) {
                ((VCheckBox) checkBox).setFocus(true);
            }
        }

        return;
    }

    super.onClick(event);
}
 

/**
 * Handles special behavior of the mouse down event.
 *
 * @param event
 */
private void handleMouseDownEvent(Event event) {
	/*
	 * Prevent the keyboard focus from leaving the textfield by preventing
	 * the default behaviour of the browser. Fixes #4285.
	 */
	if (event.getTypeInt() == Event.ONMOUSEDOWN) {
		debug("VComboBoxMultiselect: blocking mouseDown event to avoid blur");

		event.preventDefault();
		event.stopPropagation();

		/*
		 * In IE the above wont work, the blur event will still trigger. So,
		 * we set a flag here to prevent the next blur event from happening.
		 * This is not needed if do not already have focus, in that case
		 * there will not be any blur event and we should not cancel the
		 * next blur.
		 */
		if (BrowserInfo.get()
			.isIE() && this.focused) {
			this.preventNextBlurEventInIE = true;
			debug("VComboBoxMultiselect: Going to prevent next blur event on IE");
		}
	}
}
 

@Override
public void onMouseDown(MouseDownEvent event) {
	debug("VComboBoxMultiselect.onMouseDown(): blocking mouseDown event to avoid blur");

	event.preventDefault();
	event.stopPropagation();

	/*
	 * In IE the above wont work, the blur event will still trigger. So, we
	 * set a flag here to prevent the next blur event from happening. This
	 * is not needed if do not already have focus, in that case there will
	 * not be any blur event and we should not cancel the next blur.
	 */
	if (BrowserInfo.get()
		.isIE() && this.focused) {
		this.preventNextBlurEventInIE = true;
		debug("VComboBoxMultiselect: Going to prevent next blur event on IE");
	}
}
 

/**
 * Sends an asynchronous UIDL request to the server using the given URI.
 *
 * @param payload
 *            The URI to use for the request. May includes GET parameters
 */
public void send(JsonObject payload) {
    XhrResponseHandler responseHandler = createResponseHandler();
    responseHandler.setPayload(payload);
    responseHandler.setRequestStartTime(Profiler.getRelativeTimeMillis());

    String payloadJson = WidgetUtil.stringify(payload);
    XMLHttpRequest xhr = Xhr.post(getUri(), payloadJson,
            JsonConstants.JSON_CONTENT_TYPE, responseHandler);

    Console.log("Sending xhr message to server: " + payloadJson);

    if (webkitMaybeIgnoringRequests && BrowserInfo.get().isWebkit()) {
        final int retryTimeout = 250;
        new Timer() {
            @Override
            public void run() {
                // Use native js to access private field in Request
                if (resendRequest(xhr) && webkitMaybeIgnoringRequests) {
                    // Schedule retry if still needed
                    schedule(retryTimeout);
                }
            }
        }.schedule(retryTimeout);
    }
}
 

@Override
public void hide() {

    /*
     * If the window has a RichTextArea and the RTA is focused at the time
     * of hiding in IE8 only the window will have some problems returning
     * the focus to the correct place. Curiously the focus will be returned
     * correctly if clicking on the "close" button in the window header but
     * closing the window from a button for example in the window will fail.
     * Symptom described in #10776
     *
     * The problematic part is that for the focus to be returned correctly
     * an input element needs to be focused in the root panel. Focusing some
     * other element apparently won't work.
     */
    if (BrowserInfo.get().isIE8()) {
        fixIE8FocusCaptureIssue();
    }

    if (vaadinModality) {
        hideModalityCurtain();
    }
    super.hide();
}
 

@Override
public void setVisible(boolean visible) {
    /*
     * Visibility with VWindow works differently than with other Paintables
     * in Vaadin. Invisible VWindows are not attached to DOM at all. Flag is
     * used to avoid visibility call from
     * ApplicationConnection.updateComponent();
     */
    if (!visibilityChangesDisabled) {
        super.setVisible(visible);
    }

    if (visible
            && BrowserInfo.get().requiresPositionAbsoluteOverflowAutoFix()) {

        /*
         * Shake up the DOM a bit to make the window shed unnecessary
         * scrollbars and resize correctly afterwards. The version fixing
         * ticket #11994 which was changing the size to 110% was replaced
         * with this due to ticket #12943
         */
        WidgetUtil
                .runWebkitOverflowAutoFix(contents.getFirstChildElement());
    }
}
 

@Override
protected void onAttach() {
    super.onAttach();

    /*
     * When this window gets reattached, set the tabstop to the previous
     * state.
     */
    setTabStopEnabled(doTabStop);

    // Fix for #14413. Any pseudo elements inside these elements are not
    // visible on initial render unless we shake the DOM.
    if (BrowserInfo.get().isIE8()) {
        closeBox.getStyle().setDisplay(Style.Display.NONE);
        Scheduler.get().scheduleFinally(new Command() {
            @Override
            public void execute() {
                closeBox.getStyle().clearDisplay();
            }
        });
    }
}
 

@Override
public void onMouseDown(MouseDownEvent event) {
	debug("VComboBoxMultiselect.onMouseDown(): blocking mouseDown event to avoid blur");

	event.preventDefault();
	event.stopPropagation();

	/*
	 * In IE the above wont work, the blur event will still trigger. So, we
	 * set a flag here to prevent the next blur event from happening. This
	 * is not needed if do not already have focus, in that case there will
	 * not be any blur event and we should not cancel the next blur.
	 */
	if (BrowserInfo.get()
		.isIE() && this.focused) {
		this.preventNextBlurEventInIE = true;
		debug("VComboBoxMultiselect: Going to prevent next blur event on IE");
	}
}
 

/**
 * Handles special behavior of the mouse down event.
 *
 * @param event
 */
private void handleMouseDownEvent(Event event) {
	/*
	 * Prevent the keyboard focus from leaving the textfield by preventing
	 * the default behaviour of the browser. Fixes #4285.
	 */
	if (event.getTypeInt() == Event.ONMOUSEDOWN) {
		debug("VComboBoxMultiselect: blocking mouseDown event to avoid blur");

		event.preventDefault();
		event.stopPropagation();

		/*
		 * In IE the above wont work, the blur event will still trigger. So,
		 * we set a flag here to prevent the next blur event from happening.
		 * This is not needed if do not already have focus, in that case
		 * there will not be any blur event and we should not cancel the
		 * next blur.
		 */
		if (BrowserInfo.get()
			.isIE() && this.focused) {
			this.preventNextBlurEventInIE = true;
			debug("VComboBoxMultiselect: Going to prevent next blur event on IE");
		}
	}
}
 

protected void disableAutocompletion() {
    if (BrowserInfo.get().isChrome()) {
        // Chrome supports "off" and random number does not work with Chrome
        textField.getElement().setAttribute("autocomplete", "off");
    } else {
        textField.getElement().setAttribute("autocomplete", Math.random() + "");
    }
}
 

public void applyScaling(String scaleMode) {
    removeStyleName(OBJECT_FIT + this.scaleMode);

    this.scaleMode = scaleMode;

    addStyleName(OBJECT_FIT + scaleMode);

    if (BrowserInfo.get().isIE() || BrowserInfo.get().isEdge()) {
        applyScaling(Integer.valueOf(getElement().getAttribute(OBJECT_FIT_ATTRIBUTE)));
    }
}
 

@Override
public void onDrop(DropEvent event) {
    NativeEvent nativeEvent = event.getNativeEvent();
    if (validate(nativeEvent) && vaadinDragEvent != null) {
        nativeEvent.preventDefault();
        nativeEvent.stopPropagation();

        // event stopped, just notify global handler
        // Haulmont API
        if (globalDropHandler != null) {
            globalDropHandler.onDrop(event);
        }

        vaadinDragEvent.setCurrentGwtEvent(nativeEvent);
        VDragAndDropManager.get().setCurrentDropHandler(dropHandler);

        // FIXME only text currently supported
        String data;
        if (BrowserInfo.get().isIE()) {
            // IE does not support MIME types
            // http://www.developerfusion.com/article/144828/the-html5-drag-and-drop-api/
            data = event.getData("text");
        } else {
            data = event.getData("text/plain");
        }

        vaadinDragEvent.getTransferable().setData("html5Data", data);

        VDragAndDropManager.get().endDrag();
        vaadinDragEvent = null;
    }
}
 

protected void disableAutocompletion() {
    if (BrowserInfo.get().isChrome()) {
        // Chrome supports "off" and random number does not work with Chrome
        getElement().setAttribute("autocomplete", "off");
    } else {
        getElement().setAttribute("autocomplete", Math.random() + "");
    }
}
 

@Override
public void updateBody(UIDL uidl, int firstRow, int reqRows) {
    super.updateBody(uidl, firstRow, reqRows);

    // Have to scroll after row is expanded when table has vertical scroll
    if (BrowserInfo.get().isFirefox()) {
        enableLazyScroller();
    }

    handleUpdateBodyRows();
}
 

@Override
public void onClick(ClickEvent event) {
    if (BrowserInfo.get().isIE() && BrowserInfo.get().getIEVersion() >= 11) {
        // fix focusing of button-wrap in IE11
        setFocus(true);
    }

    super.onClick(event);
}
 

@Override
protected void init() {
    super.init();
    BrowserInfo info = BrowserInfo.get();
    getWidget().setBrowserInfo(info.isIE(), info.isChrome(), info.isSafari(), info.isWebkit(),
            info.getBrowserMajorVersion());
    getWidget().setAlwaysCalculatePixelWidths(info.isSafari() || info.isOpera());
    getWidget().setTouchSupported(info.isTouchDevice());
    getWidget().initWidget(ganttRpc, localeDataProvider);
    getLayoutManager().addElementResizeListener(getWidget().getElement(), widgetResizeListener);
}
 

protected void handleHistoryStep() {
    if (!isEnabled()) {
        disable();
        return;
    }

    if (!BrowserInfo.get().isIE()) {
        goForward();
    } else {
        goForwardDelayed();
    }
}
 

protected void handleOnBlur(BlurEvent event) {
    removeStyleName(MODIFIED_STYLENAME);

    if (BrowserInfo.get().isIE()) {
        if (iePreventBlur) {
            textField.setFocus(true);
            iePreventBlur = false;
        } else {
            resetComponentState();
        }
    } else {
        if (!suggestionsPopup.isShowing()) {
            resetComponentState();
            return;
        }

        EventTarget eventTarget = event.getNativeEvent().getRelatedEventTarget();
        if (eventTarget == null) {
            resetComponentState();
            return;
        }

        if (Element.is(eventTarget)) {
            Widget widget = WidgetUtil.findWidget(Element.as(eventTarget), null);
            if (widget != suggestionsContainer) {
                resetComponentState();
            }
        }
    }
}
 

@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
    if (isReadonly()
            && (BrowserInfo.get().isIE() || BrowserInfo.get().isEdge())) {
        // IE and Edge reset radioButton checked when clicking on another radioButton
        updateItemsSelection();
    }
}
 

public void setAutocomplete(boolean autocomplete) {
    if (autocomplete) {
        getElement().removeAttribute("autocomplete");
    } else {
        BrowserInfo browser = BrowserInfo.get();

        if (browser.isIE()
                || (browser.isGecko() && browser.getGeckoVersion() < 47)
                || (browser.isChrome() && browser.getBrowserMajorVersion() < 49)) {
            getElement().setAttribute("autocomplete", "off");
        } else {
            getElement().setAttribute("autocomplete", "new-password");
        }
    }
}
 

@Override
public void onClick(ClickEvent event) {
    if (!isEnabled() || isReadOnly()) {
        event.preventDefault();

        if (isReadOnly()
                && (BrowserInfo.get().isIE() || BrowserInfo.get().isEdge())) {
            // IE and Edge do not focus read-only checkbox on click
            setFocus(true);
        }
    }
}
 

@Override
public void setFocus(boolean focused) {
    super.setFocus(focused);

    if (BrowserInfo.get().isWebkit()) {
        clearWebkitTextSelection();
    }
}
 

@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
    if (isReadonly()
            && (BrowserInfo.get().isIE() || BrowserInfo.get().isEdge())) {
        // IE and Edge reset radioButton checked when clicking on another radioButton
        updateItemsSelection();
    }
}
 

protected void disableAutocompletion() {
    if (BrowserInfo.get().isChrome()) {
        // Chrome supports "off" and random number does not work with Chrome
        getElement().setAttribute("autocomplete", "off");
    } else {
        getElement().setAttribute("autocomplete", Math.random() + "");
    }
}
 

private void hideModalityCurtain() {
    Document.get().getBody().removeClassName(MODAL_WINDOW_OPEN_CLASSNAME);

    modalityCurtain.removeFromParent();

    if (BrowserInfo.get().isIE()) {
        // IE leaks memory in certain cases unless we release the reference
        // (#9197)
        modalityCurtain = null;
    }
}
 

@Override
public void onBrowserEvent(Event event) {
    if (getElement() == DOM.eventGetTarget(event)) {
        return;
    }

    SuggestionItem item = findItem(DOM.eventGetTarget(event));
    switch (DOM.eventGetType(event)) {
        case Event.ONMOUSEDOWN: {
            if (BrowserInfo.get().isIE()) {
                suggestionFieldWidget.iePreventBlur = true;
            }
            break;
        }

        case Event.ONCLICK: {
            if (event.getButton() == NativeEvent.BUTTON_LEFT) {
                performItemCommand(item);
            }
            break;
        }

        case Event.ONMOUSEOVER: {
            if (item != null) {
                selectItem(item);
            }
            break;
        }

        case Event.ONKEYDOWN: {
            int keyCode = KeyCodes.maybeSwapArrowKeysForRtl(
                    event.getKeyCode(),
                    LocaleInfo.getCurrentLocale().isRTL()
            );

            switch (keyCode) {
                case KeyCodes.KEY_UP:
                    selectPrevItem();
                    preventEvent(event);
                    break;
                case KeyCodes.KEY_DOWN:
                    selectNextItem();
                    preventEvent(event);
                    break;
                case KeyCodes.KEY_ESCAPE:
                    selectItem(null);
                    preventEvent(event);
                    break;
                case KeyCodes.KEY_TAB:
                    selectItem(null);
                    break;
                case KeyCodes.KEY_ENTER:
                    performItemCommand(item);
                    preventEvent(event);
                    break;
            }
            break;
        }
    }
    super.onBrowserEvent(event);
}