Examples with Wrapper com.codename1.util.Wrapper used on opensource projects

Example 6 with Wrapper

use of com.codename1.util.Wrapper in project CodenameOne by codenameone.

the class Util method downloadUrlSafely.

/**
 * <p>
 * Safely download the given URL to the Storage or to the FileSystemStorage:
 * this method is resistant to network errors and capable of resume the
 * download as soon as network conditions allow and in a completely
 * transparent way for the user; note that in the global network error
 * handling, there must be an automatic
 * <pre>.retry()</pre>, as in the code example below.</p>
 * <p>
 * This method is useful if the server correctly returns Content-Length and
 * if it supports partial downloads: if not, it works like a normal
 * download.</p>
 * <p>
 * Pros: always allows you to complete downloads, even if very heavy (e.g.
 * 100MB), even if the connection is unstable (network errors) and even if
 * the app goes temporarily in the background (on some platforms the
 * download will continue in the background, on others it will be
 * temporarily suspended).</p>
 * <p>
 * Cons: since this method is based on splitting the download into small
 * parts (512kbytes is the default), this approach causes many GET requests
 * that slightly slow down the download and cause more traffic than normally
 * needed.</p>
 * <p>
 * Usage example:</p>
 * <script src="https://gist.github.com/jsfan3/554590a12c3102a3d77e17533e7eca98.js"></script>
 *
 * @param url
 * @param fileName must be a valid Storage file name or FileSystemStorage
 * file path
 * @param percentageCallback invoked (in EDT) during the download to notify
 * the progress (from 0 to 100); it can be null if you are not interested in
 * monitoring the progress
 * @param filesavedCallback invoked (in EDT) only when the download is
 * finished; if null, no action is taken
 * @throws IOException
 */
public static void downloadUrlSafely(String url, final String fileName, final OnComplete<Integer> percentageCallback, final OnComplete<String> filesavedCallback) throws IOException {
    // Code discussion here: https://stackoverflow.com/a/62137379/1277576
    String partialDownloadsDir = FileSystemStorage.getInstance().getAppHomePath() + FileSystemStorage.getInstance().getFileSystemSeparator() + "partialDownloads";
    if (!FileSystemStorage.getInstance().isDirectory(partialDownloadsDir)) {
        FileSystemStorage.getInstance().mkdir(partialDownloadsDir);
    }
    // do its best to be unique if there are parallel downloads
    final String uniqueId = url.hashCode() + "" + downloadUrlSafelyRandom.nextInt();
    final String partialDownloadPath = partialDownloadsDir + FileSystemStorage.getInstance().getFileSystemSeparator() + uniqueId;
    // as discussed here: https://stackoverflow.com/a/57984257
    final boolean isStorage = fileName.indexOf("/") < 0;
    // total expected download size, with a check partial download support
    final long fileSize = getFileSizeWithoutDownload(url, true);
    // 512 kbyte, size of each small download
    final int splittingSize = 512 * 1024;
    final Wrapper<Long> downloadedTotalBytes = new Wrapper<Long>(0l);
    final OutputStream out;
    if (isStorage) {
        // leave it open to append partial downloads
        out = Storage.getInstance().createOutputStream(fileName);
    } else {
        out = FileSystemStorage.getInstance().openOutputStream(fileName);
    }
    // Codename One thread that supports crash protection and similar Codename One features.
    final EasyThread mergeFilesThread = EasyThread.start("mergeFilesThread");
    final ConnectionRequest cr = new GZConnectionRequest();
    cr.setUrl(url);
    cr.setPost(false);
    if (fileSize > splittingSize) {
        // Which byte should the download start from?
        cr.addRequestHeader("Range", "bytes=0-" + splittingSize);
        cr.setDestinationFile(partialDownloadPath);
    } else {
        Util.cleanup(out);
        if (isStorage) {
            cr.setDestinationStorage(fileName);
        } else {
            cr.setDestinationFile(fileName);
        }
    }
    cr.addResponseListener(new ActionListener<NetworkEvent>() {

        @Override
        public void actionPerformed(NetworkEvent evt) {
            mergeFilesThread.run(new Runnable() {

                @Override
                public void run() {
                    try {
                        // We append the just saved partial download to the fileName, if it exists
                        if (FileSystemStorage.getInstance().exists(partialDownloadPath)) {
                            InputStream in = FileSystemStorage.getInstance().openInputStream(partialDownloadPath);
                            Util.copyNoClose(in, out, 8192);
                            Util.cleanup(in);
                            // before deleting the file, we check and update how much data we have actually downloaded
                            downloadedTotalBytes.set(downloadedTotalBytes.get() + FileSystemStorage.getInstance().getLength(partialDownloadPath));
                            FileSystemStorage.getInstance().delete(partialDownloadPath);
                        }
                        // Is the download finished?
                        if (downloadedTotalBytes.get() > fileSize) {
                            throw new IllegalStateException("More content has been downloaded than the file length, check the code.");
                        }
                        if (fileSize <= 0 || downloadedTotalBytes.get() == fileSize) {
                            // yes, download finished
                            Util.cleanup(out);
                            if (filesavedCallback != null) {
                                CN.callSerially(new Runnable() {

                                    @Override
                                    public void run() {
                                        filesavedCallback.completed(fileName);
                                    }
                                });
                            }
                        } else {
                            // no, it's not finished, we repeat the request after updating the "Range" header
                            cr.addRequestHeader("Range", "bytes=" + downloadedTotalBytes.get() + "-" + (Math.min(downloadedTotalBytes.get() + splittingSize, fileSize)));
                            NetworkManager.getInstance().addToQueue(cr);
                        }
                    } catch (IOException ex) {
                        Log.p("Error in appending splitted file to output file", Log.ERROR);
                        Log.e(ex);
                        Log.sendLogAsync();
                    }
                }
            });
        }
    });
    NetworkManager.getInstance().addToQueue(cr);
    NetworkManager.getInstance().addProgressListener(new ActionListener<NetworkEvent>() {

        @Override
        public void actionPerformed(NetworkEvent evt) {
            if (cr == evt.getConnectionRequest() && fileSize > 0) {
                // the following casting to long is necessary when the file is bigger than 21MB, otherwise the result of the calculation is wrong
                if (percentageCallback != null) {
                    CN.callSerially(new Runnable() {

                        @Override
                        public void run() {
                            percentageCallback.completed((int) ((long) downloadedTotalBytes.get() * 100 / fileSize));
                        }
                    });
                }
            }
        }
    });
}

Example 7 with Wrapper

use of com.codename1.util.Wrapper in project CodenameOne by codenameone.

the class MigLayout method checkCache.

/**
 * Check if something has changed and if so recreate it to the cached
 * objects.
 *
 * @param parent The parent that is the target for this layout manager.
 */
private void checkCache(Container parent) {
    if (parent == null) {
        return;
    }
    if (dirty) {
        grid = null;
    }
    cleanConstraintMaps(parent);
    // Check if the grid is valid
    int mc = PlatformDefaults.getModCount();
    if (lastModCount != mc) {
        grid = null;
        lastModCount = mc;
    }
    // if (!parent.isValid()) {
    if (!lastWasInvalid) {
        lastWasInvalid = true;
        int hash = 0;
        // Added in 3.7.3 to resolve a timing regression introduced in 3.7.1
        boolean resetLastInvalidOnParent = false;
        for (ComponentWrapper wrapper : ccMap.keySet()) {
            Object component = wrapper.getComponent();
            if (component instanceof TextArea) {
                resetLastInvalidOnParent = true;
            }
            hash ^= wrapper.getLayoutHashCode();
            hash += 285134905;
        }
        if (resetLastInvalidOnParent) {
            resetLastInvalidOnParent(parent);
        }
        if (hash != lastHash) {
            grid = null;
            lastHash = hash;
        }
        Dimension ps = new Dimension(parent.getWidth(), parent.getHeight());
        if (lastInvalidSize == null || !lastInvalidSize.equals(ps)) {
            grid = null;
            lastInvalidSize = ps;
        }
    }
    /*} else {
         lastWasInvalid = false;
         }*/
    ContainerWrapper par = checkParent(parent);
    setDebug(par, getDebugMillis() > 0);
    if (grid == null) {
        grid = new Grid(par, lc, rowSpecs, colSpecs, ccMap, callbackList);
    }
    dirty = false;
}

Example 8 with Wrapper

use of com.codename1.util.Wrapper in project CodenameOne by codenameone.

the class AndroidImplementation method addActionsToNotification.

/**
 * Adds actions to a push notification.  This is called by the Push broadcast receiver probably before
 * Codename One is initialized
 * @param provider Reference to the app's main class which implements PushActionsProvider
 * @param categoryId The category ID of the push notification.
 * @param builder The builder for the push notification.
 * @param targetIntent The target intent... this should go to the app's main Activity.
 * @param context The current context (inside the Broadcast receiver).
 * @throws IOException
 */
public static void addActionsToNotification(PushActionsProvider provider, String categoryId, NotificationCompat.Builder builder, Intent targetIntent, Context context) throws IOException {
    // NOTE:  THis will likely run when the main activity isn't running so we won't have
    // access to any display properties... just native Android APIs will be accessible.
    PushActionCategory category = null;
    PushActionCategory[] categories;
    if (provider != null) {
        categories = provider.getPushActionCategories();
    } else {
        categories = getInstalledPushActionCategories(context);
    }
    for (PushActionCategory candidateCategory : categories) {
        if (categoryId.equals(candidateCategory.getId())) {
            category = candidateCategory;
            break;
        }
    }
    if (category == null) {
        return;
    }
    int requestCode = 1;
    for (PushAction action : category.getActions()) {
        Intent newIntent = (Intent) targetIntent.clone();
        newIntent.putExtra("pushActionId", action.getId());
        PendingIntent contentIntent = createPendingIntent(context, requestCode++, newIntent);
        try {
            int iconId = 0;
            try {
                iconId = Integer.parseInt(action.getIcon());
            } catch (Exception ex) {
            }
            // android.app.Notification.Action.Builder actionBuilder = new android.app.Notification.Action.Builder(iconId, action.getTitle(), contentIntent);
            System.out.println("Adding action " + action.getId() + ", " + action.getTitle() + ", icon=" + iconId);
            if (ActionWrapper.BuilderWrapper.isSupported()) {
                // We need to take this abstracted "wrapper" approach because the Action.Builder class, and RemoteInput class
                // aren't available until API 22.
                // These classes use reflection to provide support for these classes safely.
                ActionWrapper.BuilderWrapper actionBuilder = new ActionWrapper.BuilderWrapper(iconId, action.getTitle(), contentIntent);
                if (action.getTextInputPlaceholder() != null && RemoteInputWrapper.isSupported()) {
                    RemoteInputWrapper.BuilderWrapper remoteInputBuilder = new RemoteInputWrapper.BuilderWrapper(action.getId() + "$Result");
                    remoteInputBuilder.setLabel(action.getTextInputPlaceholder());
                    RemoteInputWrapper remoteInput = remoteInputBuilder.build();
                    actionBuilder.addRemoteInput(remoteInput);
                }
                ActionWrapper actionWrapper = actionBuilder.build();
                new NotificationCompatWrapper.BuilderWrapper(builder).addAction(actionWrapper);
            } else {
                builder.addAction(iconId, action.getTitle(), contentIntent);
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

Example 9 with Wrapper

use of com.codename1.util.Wrapper in project CodenameOne by codenameone.

the class AutoCompleteTextField method addPopup.

private void addPopup() {
    final Form f = getComponentForm();
    popup.removeAll();
    popup.setVisible(false);
    popup.setEnabled(false);
    filter(getText());
    final com.codename1.ui.List l = new com.codename1.ui.List(getSuggestionModel());
    if (getMinimumElementsShownInPopup() > 0) {
        l.setMinElementHeight(getMinimumElementsShownInPopup());
    }
    l.setScrollToSelected(false);
    l.setItemGap(0);
    for (ActionListener al : listeners) {
        l.addActionListener(al);
    }
    if (completionRenderer == null) {
        ((DefaultListCellRenderer<String>) l.getRenderer()).setShowNumbers(false);
    } else {
        l.setRenderer(completionRenderer);
    }
    l.setUIID("AutoCompleteList");
    l.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent evt) {
            pickedText = (String) l.getSelectedItem();
            setParentText(pickedText);
            fireActionEvent();
            // relaunch text editing if we are still editing
            if (Display.getInstance().isTextEditing(AutoCompleteTextField.this)) {
                Display.getInstance().editString(AutoCompleteTextField.this, getMaxSize(), getConstraint(), (String) l.getSelectedItem());
            }
            popup.setVisible(false);
            popup.setEnabled(false);
            f.repaint();
        }
    });
    byte[] units = popup.getStyle().getMarginUnit();
    if (units != null) {
        units[Component.LEFT] = Style.UNIT_TYPE_PIXELS;
        units[Component.TOP] = Style.UNIT_TYPE_PIXELS;
        popup.getAllStyles().setMarginUnit(units);
    }
    popup.getAllStyles().setMargin(LEFT, Math.max(0, getAbsoluteX()));
    int popupHeight = calcPopuupHeight(l);
    popup.setPreferredW(getWidth());
    popup.setHeight(popupHeight);
    popup.setWidth(getWidth());
    popup.addComponent(l);
    popup.layoutContainer();
    // block the reflow of this popup, which can cause painting problems
    dontCalcSize = true;
    if (f != null) {
        if (popup.getParent() == null) {
            Container lay = f.getLayeredPane(AutoCompleteTextField.this.getClass(), true);
            lay.setLayout(new LayeredLayout());
            Container wrapper = new Container();
            wrapper.add(popup);
            lay.addComponent(wrapper);
        }
        f.revalidate();
    }
}

Example 10 with Wrapper

use of com.codename1.util.Wrapper in project CodenameOne by codenameone.

the class AutoCompleteTextField method addPopup.

private void addPopup(boolean updateFilter) {
    final Form f = getComponentForm();
    popup.removeAll();
    popup.setVisible(false);
    popup.setEnabled(false);
    if (updateFilter) {
        filter(getText());
    }
    final com.codename1.ui.List l = new com.codename1.ui.List(getSuggestionModel());
    if (getMinimumElementsShownInPopup() > 0) {
        l.setMinElementHeight(getMinimumElementsShownInPopup());
    }
    l.setScrollToSelected(false);
    l.setItemGap(0);
    for (ActionListener al : listeners) {
        l.addActionListener(al);
    }
    if (completionRenderer == null) {
        ((DefaultListCellRenderer<String>) l.getRenderer()).setShowNumbers(false);
    } else {
        l.setRenderer(completionRenderer);
    }
    l.setUIID("AutoCompleteList");
    l.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent evt) {
            if (shouldShowPopup()) {
                pickedText = (String) l.getSelectedItem();
                setParentText(pickedText);
                fireActionEvent();
                // relaunch text editing if we are still editing
                if (Display.getInstance().isTextEditing(AutoCompleteTextField.this)) {
                    Display.getInstance().editString(AutoCompleteTextField.this, getMaxSize(), getConstraint(), (String) l.getSelectedItem());
                }
                popup.setVisible(false);
                popup.setEnabled(false);
                f.revalidate();
            }
        }
    });
    byte[] units = popup.getStyle().getMarginUnit();
    if (units != null) {
        units[Component.LEFT] = Style.UNIT_TYPE_PIXELS;
        units[Component.TOP] = Style.UNIT_TYPE_PIXELS;
        popup.getAllStyles().setMarginUnit(units);
    }
    int leftMargin = isRTL() ? Math.max(0, f.getWidth() - getAbsoluteX() - getWidth()) : Math.max(0, getAbsoluteX());
    popup.getAllStyles().setMargin(LEFT, leftMargin);
    int popupHeight = calcPopupHeight(l);
    popup.setPreferredW(getWidth());
    popup.setHeight(popupHeight);
    popup.setWidth(getWidth());
    popup.addComponent(l);
    popup.layoutContainer();
    // block the reflow of this popup, which can cause painting problems
    dontCalcSize = true;
    if (f != null) {
        if (popup.getParent() == null) {
            Container lay = f.getLayeredPane(AutoCompleteTextField.this.getClass(), true);
            lay.setLayout(new LayeredLayout());
            Container wrapper = new Container();
            wrapper.add(popup);
            lay.addComponent(wrapper);
        }
        f.revalidate();
    }
}