Examples with Timer com.google.gwt.user.client.Timer used on opensource projects

Example 91 with Timer

use of com.google.gwt.user.client.Timer in project rstudio by rstudio.

the class RCompletionManager method showHelpDeferred.

public void showHelpDeferred(final CompletionRequestContext context, final QualifiedName item, int milliseconds) {
    if (helpRequest_ != null && helpRequest_.isRunning())
        helpRequest_.cancel();
    helpRequest_ = new Timer() {

        @Override
        public void run() {
            if (item.equals(lastSelectedItem_) && popup_.isShowing())
                context.showHelp(item);
        }
    };
    helpRequest_.schedule(milliseconds);
}

Example 92 with Timer

use of com.google.gwt.user.client.Timer in project rstudio by rstudio.

the class PackagesPane method createPackagesTable.

private void createPackagesTable() {
    try {
        packagesTableContainer_.clear();
        actionCenter_ = null;
        packagesTable_ = new DataGrid<PackageInfo>(packagesDataProvider_.getList().size(), dataGridRes_);
    } catch (Exception e) {
        // in superdevmode, try a few times 
        if (SuperDevMode.isActive()) {
            if (gridRenderRetryCount_ >= 5) {
                Debug.log("WARNING: Failed to render packages pane data grid");
            }
            gridRenderRetryCount_++;
            Debug.log("WARNING: Retrying packages data grid render (" + gridRenderRetryCount_ + ")");
            Timer t = new Timer() {

                @Override
                public void run() {
                    createPackagesTable();
                }
            };
            t.schedule(5);
        }
    }
    if (packagesTable_ != null) {
        initPackagesTable();
    }
}

Example 93 with Timer

use of com.google.gwt.user.client.Timer in project rstudio by rstudio.

the class ChunkOutputFrame method runAfterRender.

public void runAfterRender(final Command command) {
    if (command == null)
        return;
    Timer onRenderedTimer = new Timer() {

        private int retryCount_ = 0;

        @Override
        public void run() {
            if (loaded_) {
                Element body = getDocument().getBody();
                if (body != null && body.getChildCount() > 0) {
                    command.execute();
                } else if (retryCount_ < 50) {
                    retryCount_++;
                    schedule(100);
                }
            }
        }
    };
    onRenderedTimer.schedule(100);
}

Example 94 with Timer

use of com.google.gwt.user.client.Timer in project rstudio by rstudio.

the class ImagePreviewer method onPreviewImageLineWidget.

private static void onPreviewImageLineWidget(final DocDisplay display, final DocUpdateSentinel sentinel, final String href, final String attributes, final Position position, final Range tokenRange) {
    // if we already have a line widget for this row, bail
    LineWidget lineWidget = display.getLineWidgetForRow(position.getRow());
    if (lineWidget != null)
        return;
    // shared mutable state that we hide in this closure
    final Mutable<PinnedLineWidget> plw = new Mutable<PinnedLineWidget>();
    final Mutable<ChunkOutputWidget> cow = new Mutable<ChunkOutputWidget>();
    final Mutable<HandlerRegistration> docChangedHandler = new Mutable<HandlerRegistration>();
    final Mutable<HandlerRegistration> renderHandler = new Mutable<HandlerRegistration>();
    // command that ensures state is cleaned up when widget hidden
    final Command onDetach = new Command() {

        private void detach() {
            // detach chunk output widget
            cow.set(null);
            // detach pinned line widget
            if (plw.get() != null)
                plw.get().detach();
            plw.set(null);
            // detach render handler
            if (renderHandler.get() != null)
                renderHandler.get().removeHandler();
            renderHandler.set(null);
            // detach doc changed handler
            if (docChangedHandler.get() != null)
                docChangedHandler.get().removeHandler();
            docChangedHandler.set(null);
        }

        @Override
        public void execute() {
            // if the associated chunk output widget has been cleaned up,
            // make a last-ditch detach effort anyhow
            ChunkOutputWidget widget = cow.get();
            if (widget == null) {
                detach();
                return;
            }
            // fade out and then detach
            FadeOutAnimation anim = new FadeOutAnimation(widget, new Command() {

                @Override
                public void execute() {
                    detach();
                }
            });
            anim.run(400);
        }
    };
    // construct placeholder for image
    final SimplePanel container = new SimplePanel();
    container.addStyleName(RES.styles().container());
    final Label noImageLabel = new Label("(No image at path " + href + ")");
    // resize command (used by various routines that need to respond
    // to width / height change events)
    final CommandWithArg<Integer> onResize = new CommandWithArg<Integer>() {

        private int state_ = -1;

        @Override
        public void execute(Integer height) {
            // defend against missing chunk output widget (can happen if a widget
            // is closed / dismissed before image finishes loading)
            ChunkOutputWidget widget = cow.get();
            if (widget == null)
                return;
            // don't resize if the chunk widget if we were already collapsed
            int state = widget.getExpansionState();
            if (state == state_ && state == ChunkOutputWidget.COLLAPSED)
                return;
            state_ = state;
            widget.getFrame().setHeight(height + "px");
            LineWidget lw = plw.get().getLineWidget();
            lw.setPixelHeight(height);
            display.onLineWidgetChanged(lw);
        }
    };
    // construct our image
    String srcPath = imgSrcPathFromHref(sentinel, href);
    final Image image = new Image(srcPath);
    image.addStyleName(RES.styles().image());
    // parse and inject attributes
    Map<String, String> parsedAttributes = HTMLAttributesParser.parseAttributes(attributes);
    final Element imgEl = image.getElement();
    for (Map.Entry<String, String> entry : parsedAttributes.entrySet()) {
        String key = entry.getKey();
        String val = entry.getValue();
        if (StringUtil.isNullOrEmpty(key) || StringUtil.isNullOrEmpty(val))
            continue;
        imgEl.setAttribute(key, val);
    }
    // add load handlers to image
    DOM.sinkEvents(imgEl, Event.ONLOAD | Event.ONERROR);
    DOM.setEventListener(imgEl, new EventListener() {

        @Override
        public void onBrowserEvent(Event event) {
            if (DOM.eventGetType(event) == Event.ONLOAD) {
                final ImageElementEx imgEl = image.getElement().cast();
                int minWidth = Math.min(imgEl.naturalWidth(), 100);
                int maxWidth = Math.min(imgEl.naturalWidth(), 650);
                Style style = imgEl.getStyle();
                boolean hasWidth = imgEl.hasAttribute("width") || style.getProperty("width") != null;
                if (!hasWidth) {
                    style.setProperty("width", "100%");
                    style.setProperty("minWidth", minWidth + "px");
                    style.setProperty("maxWidth", maxWidth + "px");
                }
                // attach to container
                container.setWidget(image);
                // update widget
                int height = image.getOffsetHeight() + 10;
                onResize.execute(height);
            } else if (DOM.eventGetType(event) == Event.ONERROR) {
                container.setWidget(noImageLabel);
                onResize.execute(50);
            }
        }
    });
    // handle editor resize events
    final Timer renderTimer = new Timer() {

        @Override
        public void run() {
            int height = image.getOffsetHeight() + 30;
            onResize.execute(height);
        }
    };
    // initialize render handler
    renderHandler.set(display.addRenderFinishedHandler(new RenderFinishedEvent.Handler() {

        private int width_;

        @Override
        public void onRenderFinished(RenderFinishedEvent event) {
            int width = display.getBounds().getWidth();
            if (width == width_)
                return;
            width_ = width;
            renderTimer.schedule(100);
        }
    }));
    // initialize doc changed handler
    docChangedHandler.set(display.addDocumentChangedHandler(new DocumentChangedEvent.Handler() {

        private String href_ = href;

        private String attributes_ = StringUtil.notNull(attributes);

        private final Timer refreshImageTimer = new Timer() {

            @Override
            public void run() {
                // if the discovered href isn't an image link, just bail
                if (!ImagePreviewer.isImageHref(href_))
                    return;
                // set new src location (load handler will replace label as needed)
                container.setWidget(new SimplePanel());
                noImageLabel.setText("(No image at path " + href_ + ")");
                image.getElement().setAttribute("src", imgSrcPathFromHref(sentinel, href_));
                // parse and inject attributes
                Map<String, String> parsedAttributes = HTMLAttributesParser.parseAttributes(attributes_);
                final Element imgEl = image.getElement();
                for (Map.Entry<String, String> entry : parsedAttributes.entrySet()) {
                    String key = entry.getKey();
                    String val = entry.getValue();
                    if (StringUtil.isNullOrEmpty(key) || StringUtil.isNullOrEmpty(val))
                        continue;
                    imgEl.setAttribute(key, val);
                }
            }
        };

        private void onDocumentChangedImpl(DocumentChangedEvent event) {
            int row = plw.get().getRow();
            Range range = event.getEvent().getRange();
            if (range.getStart().getRow() <= row && row <= range.getEnd().getRow()) {
                String line = display.getLine(row);
                if (ImagePreviewer.isStandaloneMarkdownLink(line)) {
                    // check to see if the URL text has been updated
                    Token hrefToken = null;
                    JsArray<Token> tokens = display.getTokens(row);
                    for (Token token : JsUtil.asIterable(tokens)) {
                        if (token.hasType("href")) {
                            hrefToken = token;
                            break;
                        }
                    }
                    if (hrefToken == null)
                        return;
                    String attributes = "";
                    int startBraceIdx = line.indexOf("){");
                    int endBraceIdx = line.lastIndexOf("}");
                    if (startBraceIdx != -1 && endBraceIdx != -1 && endBraceIdx > startBraceIdx) {
                        attributes = line.substring(startBraceIdx + 2, endBraceIdx).trim();
                    }
                    // (avoid flickering + re-requests of same URL)
                    if (hrefToken.getValue().equals(href_) && attributes.equals(attributes_))
                        return;
                    // cache href and schedule refresh of image
                    href_ = hrefToken.getValue();
                    attributes_ = attributes;
                    refreshImageTimer.schedule(700);
                } else {
                    onDetach.execute();
                }
            }
        }

        @Override
        public void onDocumentChanged(final DocumentChangedEvent event) {
            // ignore 'removeLines' events as they won't mutate the actual
            // line containing the markdown link
            String action = event.getEvent().getAction();
            if (action.equals("removeLines"))
                return;
            Scheduler.get().scheduleDeferred(new ScheduledCommand() {

                @Override
                public void execute() {
                    onDocumentChangedImpl(event);
                }
            });
        }
    }));
    ChunkOutputHost host = new ChunkOutputHost() {

        @Override
        public void onOutputRemoved(final ChunkOutputWidget widget) {
            onDetach.execute();
        }

        @Override
        public void onOutputHeightChanged(ChunkOutputWidget widget, int height, boolean ensureVisible) {
            onResize.execute(height);
        }
    };
    cow.set(new ChunkOutputWidget(sentinel.getId(), "md-image-preview-" + StringUtil.makeRandomId(8), RmdChunkOptions.create(), ChunkOutputWidget.EXPANDED, // can close
    false, host, ChunkOutputSize.Bare));
    ChunkOutputWidget outputWidget = cow.get();
    outputWidget.setRootWidget(container);
    outputWidget.hideSatellitePopup();
    outputWidget.getElement().getStyle().setMarginTop(4, Unit.PX);
    plw.set(new PinnedLineWidget(LINE_WIDGET_TYPE, display, outputWidget, position.getRow(), null, null));
}

Example 95 with Timer

use of com.google.gwt.user.client.Timer in project rstudio by rstudio.

the class TextEditingTarget method initialize.

public void initialize(final SourceDocument document, FileSystemContext fileContext, FileType type, Provider<String> defaultNameProvider) {
    id_ = document.getId();
    fileContext_ = fileContext;
    fileType_ = (TextFileType) type;
    codeExecution_ = new EditingTargetCodeExecution(this, docDisplay_, getId(), this);
    extendedType_ = document.getExtendedType();
    extendedType_ = rmarkdownHelper_.detectExtendedType(document.getContents(), extendedType_, fileType_);
    themeHelper_ = new TextEditingTargetThemeHelper(this, events_);
    docUpdateSentinel_ = new DocUpdateSentinel(server_, docDisplay_, document, globalDisplay_.getProgressIndicator("Save File"), dirtyState_, events_);
    view_ = new TextEditingTargetWidget(this, docUpdateSentinel_, commands_, prefs_, fileTypeRegistry_, docDisplay_, fileType_, extendedType_, events_, session_);
    roxygenHelper_ = new RoxygenHelper(docDisplay_, view_);
    // create notebook and forward resize events
    chunks_ = new TextEditingTargetChunks(this);
    notebook_ = new TextEditingTargetNotebook(this, chunks_, view_, docDisplay_, dirtyState_, docUpdateSentinel_, document, releaseOnDismiss_, dependencyManager_);
    view_.addResizeHandler(notebook_);
    // ensure that Makefile and Makevars always use tabs
    name_.addValueChangeHandler(new ValueChangeHandler<String>() {

        @Override
        public void onValueChange(ValueChangeEvent<String> event) {
            if ("Makefile".equals(event.getValue()) || "Makefile.in".equals(event.getValue()) || "Makefile.win".equals(event.getValue()) || "Makevars".equals(event.getValue()) || "Makevars.in".equals(event.getValue()) || "Makevars.win".equals(event.getValue())) {
                docDisplay_.setUseSoftTabs(false);
            }
        }
    });
    name_.setValue(getNameFromDocument(document, defaultNameProvider), true);
    String contents = document.getContents();
    docDisplay_.setCode(contents, false);
    // Load and apply folds.
    final ArrayList<Fold> folds = Fold.decode(document.getFoldSpec());
    Scheduler.get().scheduleDeferred(new ScheduledCommand() {

        @Override
        public void execute() {
            for (Fold fold : folds) docDisplay_.addFold(fold.getRange());
        }
    });
    // Load and apply Vim marks (if they exist).
    if (document.getProperties().hasKey("marks")) {
        final String marksSpec = document.getProperties().getString("marks");
        final JsMap<Position> marks = VimMarks.decode(marksSpec);
        // Time out the marks setting just to avoid conflict with other
        // mutations of the editor.
        new Timer() {

            @Override
            public void run() {
                docDisplay_.setMarks(marks);
            }
        }.schedule(100);
    }
    registerPrefs(releaseOnDismiss_, prefs_, docDisplay_, document);
    // Initialize sourceOnSave, and keep it in sync
    view_.getSourceOnSave().setValue(document.sourceOnSave(), false);
    view_.getSourceOnSave().addValueChangeHandler(new ValueChangeHandler<Boolean>() {

        public void onValueChange(ValueChangeEvent<Boolean> event) {
            docUpdateSentinel_.setSourceOnSave(event.getValue(), globalDisplay_.getProgressIndicator("Error Saving Setting"));
        }
    });
    if (document.isDirty())
        dirtyState_.markDirty(false);
    else
        dirtyState_.markClean();
    docDisplay_.addValueChangeHandler(new ValueChangeHandler<Void>() {

        public void onValueChange(ValueChangeEvent<Void> event) {
            dirtyState_.markDirty(true);
            docDisplay_.clearSelectionHistory();
        }
    });
    docDisplay_.addFocusHandler(new FocusHandler() {

        public void onFocus(FocusEvent event) {
            // let anyone listening know this doc just got focus
            events_.fireEvent(new DocFocusedEvent(getPath(), getId()));
            if (queuedCollabParams_ != null) {
                // of one
                if (docDisplay_ != null && !docDisplay_.hasActiveCollabSession()) {
                    beginQueuedCollabSession();
                }
            }
            // check to see if the file's been saved externally--we do this even
            // in a collaborative editing session so we can get delete
            // notifications
            Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {

                public boolean execute() {
                    if (view_.isAttached())
                        checkForExternalEdit();
                    return false;
                }
            }, 500);
        }
    });
    if (fileType_.isR()) {
        docDisplay_.addBreakpointSetHandler(new BreakpointSetEvent.Handler() {

            @Override
            public void onBreakpointSet(BreakpointSetEvent event) {
                if (event.isSet()) {
                    Breakpoint breakpoint = null;
                    // don't try to set breakpoints in unsaved code
                    if (isNewDoc()) {
                        view_.showWarningBar("Breakpoints cannot be set until " + "the file is saved.");
                        return;
                    }
                    // don't try to set breakpoints if the R version is too old
                    if (!session_.getSessionInfo().getHaveSrcrefAttribute()) {
                        view_.showWarningBar("Editor breakpoints require R 2.14 " + "or newer.");
                        return;
                    }
                    Position breakpointPosition = Position.create(event.getLineNumber() - 1, 1);
                    // if we're not in function scope, or this is a Shiny file,
                    // set a top-level (aka. Shiny-deferred) breakpoint
                    ScopeFunction innerFunction = null;
                    if (extendedType_ == null || !extendedType_.startsWith(SourceDocument.XT_SHINY_PREFIX))
                        innerFunction = docDisplay_.getFunctionAtPosition(breakpointPosition, false);
                    if (innerFunction == null || !innerFunction.isFunction() || StringUtil.isNullOrEmpty(innerFunction.getFunctionName())) {
                        breakpoint = breakpointManager_.setTopLevelBreakpoint(getPath(), event.getLineNumber());
                    } else // the scope tree will find nested functions, but in R these
                    // are addressable only as substeps of the parent function.
                    // keep walking up the scope tree until we've reached the top
                    // level function.
                    {
                        while (innerFunction.getParentScope() != null && innerFunction.getParentScope().isFunction()) {
                            innerFunction = (ScopeFunction) innerFunction.getParentScope();
                        }
                        String functionName = innerFunction.getFunctionName();
                        breakpoint = breakpointManager_.setBreakpoint(getPath(), functionName, event.getLineNumber(), dirtyState().getValue() == false);
                    }
                    docDisplay_.addOrUpdateBreakpoint(breakpoint);
                } else {
                    breakpointManager_.removeBreakpoint(event.getBreakpointId());
                }
                updateBreakpointWarningBar();
            }
        });
        docDisplay_.addBreakpointMoveHandler(new BreakpointMoveEvent.Handler() {

            @Override
            public void onBreakpointMove(BreakpointMoveEvent event) {
                breakpointManager_.moveBreakpoint(event.getBreakpointId());
            }
        });
    }
    // validate required components (e.g. Tex, knitr, C++ etc.)
    checkCompilePdfDependencies();
    rmarkdownHelper_.verifyPrerequisites(view_, fileType_);
    syncFontSize(releaseOnDismiss_, events_, view_, fontSizeManager_);
    final String rTypeId = FileTypeRegistry.R.getTypeId();
    releaseOnDismiss_.add(prefs_.softWrapRFiles().addValueChangeHandler(new ValueChangeHandler<Boolean>() {

        public void onValueChange(ValueChangeEvent<Boolean> evt) {
            if (fileType_.getTypeId().equals(rTypeId))
                view_.adaptToFileType(fileType_);
        }
    }));
    releaseOnDismiss_.add(events_.addHandler(FileChangeEvent.TYPE, new FileChangeHandler() {

        @Override
        public void onFileChange(FileChangeEvent event) {
            // screen out adds and events that aren't for our path
            FileChange fileChange = event.getFileChange();
            if (fileChange.getType() == FileChange.ADD)
                return;
            else if (!fileChange.getFile().getPath().equals(getPath()))
                return;
            // always check for changes if this is the active editor
            if (commandHandlerReg_ != null) {
                checkForExternalEdit();
            } else // this will show a confirmation dialog
            if (event.getFileChange().getType() == FileChange.MODIFIED && dirtyState().getValue() == false) {
                checkForExternalEdit();
            }
        }
    }));
    spelling_ = new TextEditingTargetSpelling(docDisplay_, docUpdateSentinel_);
    // show/hide the debug toolbar when the dirty state changes. (note:
    // this doesn't yet handle the case where the user saves the document,
    // in which case we should still show some sort of warning.)
    dirtyState().addValueChangeHandler(new ValueChangeHandler<Boolean>() {

        public void onValueChange(ValueChangeEvent<Boolean> evt) {
            updateDebugWarningBar();
        }
    });
    // find all of the debug breakpoints set in this document and replay them
    // onto the edit surface
    ArrayList<Breakpoint> breakpoints = breakpointManager_.getBreakpointsInFile(getPath());
    for (Breakpoint breakpoint : breakpoints) {
        docDisplay_.addOrUpdateBreakpoint(breakpoint);
    }
    if (extendedType_.equals(SourceDocument.XT_RMARKDOWN)) {
        // populate the popup menu with a list of available formats
        updateRmdFormatList();
        setRMarkdownBehaviorEnabled(true);
    }
    view_.addRmdFormatChangedHandler(new RmdOutputFormatChangedEvent.Handler() {

        @Override
        public void onRmdOutputFormatChanged(RmdOutputFormatChangedEvent event) {
            setRmdFormat(event.getFormat());
        }
    });
    syncPublishPath(document.getPath());
    initStatusBar();
}