diff options
Diffstat (limited to 'src/com/vaadin/terminal/gwt/server/WebBrowser.java')
| -rw-r--r-- | src/com/vaadin/terminal/gwt/server/WebBrowser.java | 462 |
1 files changed, 0 insertions, 462 deletions
diff --git a/src/com/vaadin/terminal/gwt/server/WebBrowser.java b/src/com/vaadin/terminal/gwt/server/WebBrowser.java deleted file mode 100644 index 4b92b12b66..0000000000 --- a/src/com/vaadin/terminal/gwt/server/WebBrowser.java +++ /dev/null @@ -1,462 +0,0 @@ -/* -@VaadinApache2LicenseForJavaFiles@ - */ - -package com.vaadin.terminal.gwt.server; - -import java.util.Date; -import java.util.Locale; - -import com.vaadin.shared.VBrowserDetails; -import com.vaadin.terminal.Terminal; -import com.vaadin.terminal.WrappedRequest; - -/** - * Class that provides information about the web browser the user is using. - * Provides information such as browser name and version, screen resolution and - * IP address. - * - * @author Vaadin Ltd. - * @version @VERSION@ - */ -public class WebBrowser implements Terminal { - - private int screenHeight = 0; - private int screenWidth = 0; - private String browserApplication = null; - private Locale locale; - private String address; - private boolean secureConnection; - private int timezoneOffset = 0; - private int rawTimezoneOffset = 0; - private int dstSavings; - private boolean dstInEffect; - private boolean touchDevice; - - private VBrowserDetails browserDetails; - private long clientServerTimeDelta; - - /** - * There is no default-theme for this terminal type. - * - * @return Always returns null. - */ - - @Override - public String getDefaultTheme() { - return null; - } - - /* - * (non-Javadoc) - * - * @see com.vaadin.terminal.Terminal#getScreenHeight() - */ - - @Override - public int getScreenHeight() { - return screenHeight; - } - - /* - * (non-Javadoc) - * - * @see com.vaadin.terminal.Terminal#getScreenWidth() - */ - - @Override - public int getScreenWidth() { - return screenWidth; - } - - /** - * Get the browser user-agent string. - * - * @return The raw browser userAgent string - */ - public String getBrowserApplication() { - return browserApplication; - } - - /** - * Gets the IP-address of the web browser. If the application is running - * inside a portlet, this method will return null. - * - * @return IP-address in 1.12.123.123 -format - */ - public String getAddress() { - return address; - } - - /** Get the default locate of the browser. */ - public Locale getLocale() { - return locale; - } - - /** Is the connection made using HTTPS? */ - public boolean isSecureConnection() { - return secureConnection; - } - - /** - * Tests whether the user is using Firefox. - * - * @return true if the user is using Firefox, false if the user is not using - * Firefox or if no information on the browser is present - */ - public boolean isFirefox() { - if (browserDetails == null) { - return false; - } - - return browserDetails.isFirefox(); - } - - /** - * Tests whether the user is using Internet Explorer. - * - * @return true if the user is using Internet Explorer, false if the user is - * not using Internet Explorer or if no information on the browser - * is present - */ - public boolean isIE() { - if (browserDetails == null) { - return false; - } - - return browserDetails.isIE(); - } - - /** - * Tests whether the user is using Safari. - * - * @return true if the user is using Safari, false if the user is not using - * Safari or if no information on the browser is present - */ - public boolean isSafari() { - if (browserDetails == null) { - return false; - } - - return browserDetails.isSafari(); - } - - /** - * Tests whether the user is using Opera. - * - * @return true if the user is using Opera, false if the user is not using - * Opera or if no information on the browser is present - */ - public boolean isOpera() { - if (browserDetails == null) { - return false; - } - - return browserDetails.isOpera(); - } - - /** - * Tests whether the user is using Chrome. - * - * @return true if the user is using Chrome, false if the user is not using - * Chrome or if no information on the browser is present - */ - public boolean isChrome() { - if (browserDetails == null) { - return false; - } - - return browserDetails.isChrome(); - } - - /** - * Tests whether the user is using Chrome Frame. - * - * @return true if the user is using Chrome Frame, false if the user is not - * using Chrome or if no information on the browser is present - */ - public boolean isChromeFrame() { - if (browserDetails == null) { - return false; - } - - return browserDetails.isChromeFrame(); - } - - /** - * Tests whether the user's browser is Chrome Frame capable. - * - * @return true if the user can use Chrome Frame, false if the user can not - * or if no information on the browser is present - */ - public boolean isChromeFrameCapable() { - if (browserDetails == null) { - return false; - } - - return browserDetails.isChromeFrameCapable(); - } - - /** - * Gets the major version of the browser the user is using. - * - * <p> - * Note that Internet Explorer in IE7 compatibility mode might return 8 in - * some cases even though it should return 7. - * </p> - * - * @return The major version of the browser or -1 if not known. - */ - public int getBrowserMajorVersion() { - if (browserDetails == null) { - return -1; - } - - return browserDetails.getBrowserMajorVersion(); - } - - /** - * Gets the minor version of the browser the user is using. - * - * @see #getBrowserMajorVersion() - * - * @return The minor version of the browser or -1 if not known. - */ - public int getBrowserMinorVersion() { - if (browserDetails == null) { - return -1; - } - - return browserDetails.getBrowserMinorVersion(); - } - - /** - * Tests whether the user is using Linux. - * - * @return true if the user is using Linux, false if the user is not using - * Linux or if no information on the browser is present - */ - public boolean isLinux() { - return browserDetails.isLinux(); - } - - /** - * Tests whether the user is using Mac OS X. - * - * @return true if the user is using Mac OS X, false if the user is not - * using Mac OS X or if no information on the browser is present - */ - public boolean isMacOSX() { - return browserDetails.isMacOSX(); - } - - /** - * Tests whether the user is using Windows. - * - * @return true if the user is using Windows, false if the user is not using - * Windows or if no information on the browser is present - */ - public boolean isWindows() { - return browserDetails.isWindows(); - } - - /** - * Returns the browser-reported TimeZone offset in milliseconds from GMT. - * This includes possible daylight saving adjustments, to figure out which - * TimeZone the user actually might be in, see - * {@link #getRawTimezoneOffset()}. - * - * @see WebBrowser#getRawTimezoneOffset() - * @return timezone offset in milliseconds, 0 if not available - */ - public Integer getTimezoneOffset() { - return timezoneOffset; - } - - /** - * Returns the browser-reported TimeZone offset in milliseconds from GMT - * ignoring possible daylight saving adjustments that may be in effect in - * the browser. - * <p> - * You can use this to figure out which TimeZones the user could actually be - * in by calling {@link TimeZone#getAvailableIDs(int)}. - * </p> - * <p> - * If {@link #getRawTimezoneOffset()} and {@link #getTimezoneOffset()} - * returns the same value, the browser is either in a zone that does not - * currently have daylight saving time, or in a zone that never has daylight - * saving time. - * </p> - * - * @return timezone offset in milliseconds excluding DST, 0 if not available - */ - public Integer getRawTimezoneOffset() { - return rawTimezoneOffset; - } - - /** - * Gets the difference in minutes between the browser's GMT TimeZone and - * DST. - * - * @return the amount of minutes that the TimeZone shifts when DST is in - * effect - */ - public int getDSTSavings() { - return dstSavings; - } - - /** - * Determines whether daylight savings time (DST) is currently in effect in - * the region of the browser or not. - * - * @return true if the browser resides at a location that currently is in - * DST - */ - public boolean isDSTInEffect() { - return dstInEffect; - } - - /** - * Returns the current date and time of the browser. This will not be - * entirely accurate due to varying network latencies, but should provide a - * close-enough value for most cases. Also note that the returned Date - * object uses servers default time zone, not the clients. - * - * @return the current date and time of the browser. - * @see #isDSTInEffect() - * @see #getDSTSavings() - * @see #getTimezoneOffset() - */ - public Date getCurrentDate() { - return new Date(new Date().getTime() + clientServerTimeDelta); - } - - /** - * @return true if the browser is detected to support touch events - */ - public boolean isTouchDevice() { - return touchDevice; - } - - /** - * For internal use by AbstractApplicationServlet/AbstractApplicationPortlet - * only. Updates all properties in the class according to the given - * information. - * - * @param sw - * Screen width - * @param sh - * Screen height - * @param tzo - * TimeZone offset in minutes from GMT - * @param rtzo - * raw TimeZone offset in minutes from GMT (w/o DST adjustment) - * @param dstSavings - * the difference between the raw TimeZone and DST in minutes - * @param dstInEffect - * is DST currently active in the region or not? - * @param curDate - * the current date in milliseconds since the epoch - * @param touchDevice - */ - void updateClientSideDetails(String sw, String sh, String tzo, String rtzo, - String dstSavings, String dstInEffect, String curDate, - boolean touchDevice) { - if (sw != null) { - try { - screenHeight = Integer.parseInt(sh); - screenWidth = Integer.parseInt(sw); - } catch (final NumberFormatException e) { - screenHeight = screenWidth = 0; - } - } - if (tzo != null) { - try { - // browser->java conversion: min->ms, reverse sign - timezoneOffset = -Integer.parseInt(tzo) * 60 * 1000; - } catch (final NumberFormatException e) { - timezoneOffset = 0; // default gmt+0 - } - } - if (rtzo != null) { - try { - // browser->java conversion: min->ms, reverse sign - rawTimezoneOffset = -Integer.parseInt(rtzo) * 60 * 1000; - } catch (final NumberFormatException e) { - rawTimezoneOffset = 0; // default gmt+0 - } - } - if (dstSavings != null) { - try { - // browser->java conversion: min->ms - this.dstSavings = Integer.parseInt(dstSavings) * 60 * 1000; - } catch (final NumberFormatException e) { - this.dstSavings = 0; // default no savings - } - } - if (dstInEffect != null) { - this.dstInEffect = Boolean.parseBoolean(dstInEffect); - } - if (curDate != null) { - try { - long curTime = Long.parseLong(curDate); - clientServerTimeDelta = curTime - new Date().getTime(); - } catch (final NumberFormatException e) { - clientServerTimeDelta = 0; - } - } - this.touchDevice = touchDevice; - - } - - /** - * For internal use by AbstractApplicationServlet/AbstractApplicationPortlet - * only. Updates all properties in the class according to the given - * information. - * - * @param request - * the wrapped request to read the information from - */ - void updateRequestDetails(WrappedRequest request) { - locale = request.getLocale(); - address = request.getRemoteAddr(); - secureConnection = request.isSecure(); - String agent = request.getHeader("user-agent"); - - if (agent != null) { - browserApplication = agent; - browserDetails = new VBrowserDetails(agent); - } - - if (request.getParameter("sw") != null) { - updateClientSideDetails(request.getParameter("sw"), - request.getParameter("sh"), request.getParameter("tzo"), - request.getParameter("rtzo"), request.getParameter("dstd"), - request.getParameter("dston"), - request.getParameter("curdate"), - request.getParameter("td") != null); - } - } - - /** - * Checks if the browser is so old that it simply won't work with a Vaadin - * application. Can be used to redirect to an alternative page, show - * alternative content or similar. - * - * When this method returns true chances are very high that the browser - * won't work and it does not make sense to direct the user to the Vaadin - * application. - * - * @return true if the browser won't work, false if not the browser is - * supported or might work - */ - public boolean isTooOldToFunctionProperly() { - if (browserDetails == null) { - // Don't know, so assume it will work - return false; - } - - return browserDetails.isTooOldToFunctionProperly(); - } - -} |