private boolean isSetupChunk(Element el, AceEditorNative editor) {
int pageX = el.getAbsoluteLeft();
int pageY = el.getAbsoluteTop();
Position position = editor.getRenderer().screenToTextCoordinates(pageX, pageY);
String line = editor.getSession().getLine(position.getRow());
return line.contains("r setup");
}
private void manageChunkIcons(AceEditorNative editor) {
Element container = editor.getContainer();
if (container == null) return;
Element[] icons =
DomUtils.getElementsByClassName(container, ThemeStyles.INSTANCE.inlineChunkToolbar());
for (Element icon : icons) icon.removeFromParent();
if (!uiPrefs_.showInlineToolbarForRCodeChunks().getValue()) return;
if (!shouldDisplayIcons(editor)) return;
Element[] chunkStarts = DomUtils.getElementsByClassName("rstudio_chunk_start ace_start");
for (int i = 0; i < chunkStarts.length; i++) {
Element el = chunkStarts[i];
if (isPseudoMarker(el)) continue;
if (!isRunnableChunk(el, editor)) continue;
if (!DomUtils.isVisibleVert(container, el)) continue;
if (el.getChildCount() > 0) el.removeAllChildren();
addToolbar(el, isSetupChunk(el, editor), editor);
}
}
private void addToolbar(Element el, boolean isSetupChunk, AceEditorNative editor) {
FlowPanel toolbarPanel = new FlowPanel();
toolbarPanel.addStyleName(ThemeStyles.INSTANCE.inlineChunkToolbar());
boolean isDark = themes_.isDark(themes_.getEffectiveThemeName(uiPrefs_.theme().getValue()));
if (isSetupChunk) {
Image optionsIcon = createOptionsIcon(isDark, true);
toolbarPanel.add(optionsIcon);
} else {
Image optionsIcon = createOptionsIcon(isDark, false);
optionsIcon.getElement().getStyle().setMarginRight(9, Unit.PX);
toolbarPanel.add(optionsIcon);
// Note that 'run current chunk' currently only operates within Rmd
if (editor.getSession().getMode().getId().equals("mode/rmarkdown")) {
Image runPreviousIcon = createRunPreviousIcon(isDark);
runPreviousIcon.getElement().getStyle().setMarginRight(8, Unit.PX);
toolbarPanel.add(runPreviousIcon);
Image runIcon = createRunIcon();
toolbarPanel.add(runIcon);
}
}
display(toolbarPanel, el);
}
private boolean isRunnableChunk(Element el, AceEditorNative editor) {
Position pos = toDocumentPosition(el, editor);
String text = editor.getSession().getLine(pos.getRow());
Pattern pattern = Pattern.create("engine\\s*=\\s*['\"]([^'\"]*)['\"]", "");
Match match = pattern.match(text, 0);
if (match == null) return true;
String engine = match.getGroup(1).toLowerCase();
return engine.equals("r") || engine.equals("rscript");
}
private void doSetCode(String code, boolean preserveCursorPosition) {
// Filter out Escape characters that might have snuck in from an old
// bug in 0.95. We can choose to remove this when 0.95 ships, hopefully
// any documents that would be affected by this will be gone by then.
code = code.replaceAll("\u001B", "");
final AceEditorNative ed = widget_.getEditor();
if (preserveCursorPosition) {
final Position cursorPos;
final int scrollTop, scrollLeft;
cursorPos = ed.getSession().getSelection().getCursor();
scrollTop = ed.getRenderer().getScrollTop();
scrollLeft = ed.getRenderer().getScrollLeft();
// Setting the value directly on the document prevents undo/redo
// stack from being blown away
widget_.getEditor().getSession().getDocument().setValue(code);
ed.getSession().getSelection().moveCursorTo(cursorPos.getRow(), cursorPos.getColumn(), false);
ed.getRenderer().scrollToY(scrollTop);
ed.getRenderer().scrollToX(scrollLeft);
Scheduler.get()
.scheduleDeferred(
new ScheduledCommand() {
@Override
public void execute() {
ed.getRenderer().scrollToY(scrollTop);
ed.getRenderer().scrollToX(scrollLeft);
}
});
} else {
ed.getSession().setValue(code);
ed.getSession().getSelection().moveCursorTo(0, 0, false);
}
}
private Position toDocumentPosition(Element el, AceEditorNative editor) {
int pageX = el.getAbsoluteLeft();
int pageY = el.getAbsoluteTop();
return editor.getRenderer().screenToTextCoordinates(pageX, pageY);
}
private boolean shouldDisplayIcons(AceEditorNative editor) {
String id = editor.getSession().getMode().getId();
return id.equals("mode/rmarkdown"); // also Rpres
}