Examples with TreeChangeEvent com.intellij.pom.tree.events.TreeChangeEvent used on opensource projects

Example 1 with TreeChangeEvent

use of com.intellij.pom.tree.events.TreeChangeEvent in project intellij-community by JetBrains.

the class XmlTagImpl method deleteChildInternal.

@Override
public void deleteChildInternal(@NotNull final ASTNode child) {
    final PomModel model = PomManager.getModel(getProject());
    final XmlAspect aspect = model.getModelAspect(XmlAspect.class);
    if (child.getElementType() == XmlElementType.XML_ATTRIBUTE) {
        try {
            model.runTransaction(new PomTransactionBase(this, aspect) {

                @Override
                public PomModelEvent runInner() {
                    final String name = ((XmlAttribute) child).getName();
                    XmlTagImpl.super.deleteChildInternal(child);
                    return XmlAttributeSetImpl.createXmlAttributeSet(model, XmlTagImpl.this, name, null);
                }
            });
        } catch (IncorrectOperationException e) {
            LOG.error(e);
        }
    } else {
        final ASTNode treePrev = child.getTreePrev();
        final ASTNode treeNext = child.getTreeNext();
        super.deleteChildInternal(child);
        if (treePrev != null && treeNext != null && treePrev.getElementType() == XmlElementType.XML_TEXT && treeNext.getElementType() == XmlElementType.XML_TEXT) {
            final XmlText prevText = (XmlText) treePrev.getPsi();
            final XmlText nextText = (XmlText) treeNext.getPsi();
            final String newValue = prevText.getValue() + nextText.getValue();
            // merging two XmlText-s should be done in one transaction to preserve smart pointers
            ChangeUtil.prepareAndRunChangeAction(new ChangeUtil.ChangeAction() {

                @Override
                public void makeChange(TreeChangeEvent destinationTreeChange) {
                    PsiElement anchor = prevText.getPrevSibling();
                    prevText.delete();
                    nextText.delete();
                    XmlText text = (XmlText) addAfter(XmlElementFactory.getInstance(getProject()).createDisplayText("x"), anchor);
                    text.setValue(newValue);
                }
            }, this);
        }
    }
}

Example 2 with TreeChangeEvent

use of com.intellij.pom.tree.events.TreeChangeEvent in project intellij-community by JetBrains.

the class XmlAspectImpl method update.

@Override
public void update(PomModelEvent event) {
    if (!event.getChangedAspects().contains(myTreeAspect))
        return;
    final TreeChangeEvent changeSet = (TreeChangeEvent) event.getChangeSet(myTreeAspect);
    if (changeSet == null)
        return;
    final ASTNode rootElement = changeSet.getRootElement();
    final PsiFile file = (PsiFile) rootElement.getPsi();
    if (!(file instanceof XmlFile))
        return;
    final XmlAspectChangeSetImpl xmlChangeSet = event.registerChangeSetIfAbsent(this, new XmlAspectChangeSetImpl(myModel));
    xmlChangeSet.addChangedFile((XmlFile) file);
    final ASTNode[] changedElements = changeSet.getChangedElements();
    final CharTable table = ((FileElement) changeSet.getRootElement()).getCharTable();
    for (ASTNode changedElement : changedElements) {
        TreeChange changesByElement = changeSet.getChangesByElement(changedElement);
        PsiElement psiElement = null;
        while (changedElement != null && (psiElement = changedElement.getPsi()) == null) {
            final ASTNode parent = changedElement.getTreeParent();
            final ChangeInfoImpl changeInfo = ChangeInfoImpl.create(ChangeInfo.CONTENTS_CHANGED, changedElement);
            changeInfo.compactChange(changesByElement);
            changesByElement = new TreeChangeImpl(parent);
            changesByElement.addChange(changedElement, changeInfo);
            changedElement = parent;
        }
        if (changedElement == null)
            continue;
        final TreeChange finalChangedElement = changesByElement;
        psiElement.accept(new XmlElementVisitor() {

            TreeChange myChange = finalChangedElement;

            @Override
            public void visitElement(PsiElement element) {
                final ASTNode child = element.getNode();
                final ASTNode treeParent = child.getTreeParent();
                if (treeParent == null)
                    return;
                final PsiElement parent = treeParent.getPsi();
                final ChangeInfoImpl changeInfo = ChangeInfoImpl.create(ChangeInfo.CONTENTS_CHANGED, child);
                changeInfo.compactChange(myChange);
                myChange = new TreeChangeImpl(treeParent);
                myChange.addChange(child, changeInfo);
                parent.accept(this);
            }

            @Override
            public void visitXmlAttribute(XmlAttribute attribute) {
                final ASTNode[] affectedChildren = myChange.getAffectedChildren();
                String oldName = null;
                String oldValue = null;
                for (final ASTNode treeElement : affectedChildren) {
                    final ChangeInfo changeByChild = myChange.getChangeByChild(treeElement);
                    final int changeType = changeByChild.getChangeType();
                    if (treeElement.getElementType() == XmlTokenType.XML_NAME) {
                        if (changeType == ChangeInfo.REMOVED) {
                            oldName = treeElement.getText();
                        } else if (changeType == ChangeInfo.REPLACE) {
                            oldName = ((ReplaceChangeInfo) changeByChild).getReplaced().getText();
                        }
                    }
                    if (treeElement.getElementType() == XmlElementType.XML_ATTRIBUTE_VALUE) {
                        if (changeType == ChangeInfo.REMOVED) {
                            oldValue = treeElement.getText();
                        } else if (changeType == ChangeInfo.REPLACE) {
                            oldValue = ((ReplaceChangeInfo) changeByChild).getReplaced().getText();
                        }
                    }
                }
                if (oldName != null && !oldName.equals(attribute.getName())) {
                    xmlChangeSet.add(new XmlAttributeSetImpl(attribute.getParent(), oldName, null));
                    xmlChangeSet.add(new XmlAttributeSetImpl(attribute.getParent(), attribute.getName(), attribute.getValue()));
                } else if (oldValue != null) {
                    xmlChangeSet.add(new XmlAttributeSetImpl(attribute.getParent(), attribute.getName(), attribute.getValue()));
                } else {
                    xmlChangeSet.add(new XmlElementChangedImpl(attribute));
                }
            }

            @Override
            public void visitXmlTag(XmlTag tag) {
                ASTNode[] affectedChildren = shortenChange(myChange.getAffectedChildren(), changeSet);
                for (final ASTNode treeElement : affectedChildren) {
                    if (!(treeElement.getPsi() instanceof XmlTagChild)) {
                        visitElement(tag);
                        return;
                    }
                }
                for (final ASTNode treeElement : affectedChildren) {
                    final ChangeInfo changeByChild = myChange.getChangeByChild(treeElement);
                    final int changeType = changeByChild.getChangeType();
                    final IElementType type = treeElement.getElementType();
                    if (type == TokenType.WHITE_SPACE)
                        continue;
                    /*
            if (type == ElementType.XML_NAME) {
              final XmlToken xmlToken = (XmlToken)((ReplaceChangeInfo)changeByChild).getReplaced();
              xmlChangeSet.add(new XmlTagNameChangedImpl(tag, xmlToken.getText()));
              continue;
            }
            */
                    final PsiElement element = treeElement.getPsi();
                    switch(changeType) {
                        case ChangeInfo.ADD:
                            xmlChangeSet.add(new XmlTagChildAddImpl(tag, (XmlTagChild) element));
                            break;
                        case ChangeInfo.REMOVED:
                            treeElement.putUserData(CharTable.CHAR_TABLE_KEY, table);
                            xmlChangeSet.add(new XmlTagChildRemovedImpl(tag, (XmlTagChild) element));
                            break;
                        case ChangeInfo.CONTENTS_CHANGED:
                            xmlChangeSet.add(new XmlTagChildChangedImpl(tag, (XmlTagChild) element));
                            break;
                        case ChangeInfo.REPLACE:
                            final PsiElement psi = ((ReplaceChangeInfo) changeByChild).getReplaced().getPsi();
                            if (psi instanceof XmlTagChild) {
                                final XmlTagChild replaced = (XmlTagChild) psi;
                                replaced.putUserData(CharTable.CHAR_TABLE_KEY, table);
                                xmlChangeSet.add(new XmlTagChildRemovedImpl(tag, replaced));
                                xmlChangeSet.add(new XmlTagChildAddImpl(tag, (XmlTagChild) element));
                            }
                            break;
                    }
                }
            }

            @Override
            public void visitXmlDocument(XmlDocument document) {
                xmlChangeSet.clear();
                xmlChangeSet.add(new XmlDocumentChangedImpl(document));
            }

            @Override
            public void visitFile(PsiFile file) {
                final XmlDocument document = ((XmlFile) file).getDocument();
                if (document != null) {
                    xmlChangeSet.clear();
                    xmlChangeSet.add(new XmlDocumentChangedImpl(document));
                }
            }
        });
    }
}

Example 3 with TreeChangeEvent

use of com.intellij.pom.tree.events.TreeChangeEvent in project intellij-community by JetBrains.

the class PsiEventWrapperAspect method update.

@Override
public void update(PomModelEvent event) {
    final TreeChangeEvent changeSet = (TreeChangeEvent) event.getChangeSet(myTreeAspect);
    if (changeSet == null)
        return;
    sendAfterEvents(changeSet);
}

Example 4 with TreeChangeEvent

use of com.intellij.pom.tree.events.TreeChangeEvent in project intellij-community by JetBrains.

the class ChangeUtil method prepareAndRunChangeAction.

public static void prepareAndRunChangeAction(final ChangeAction action, final TreeElement changedElement) {
    final FileElement changedFile = TreeUtil.getFileElement(changedElement);
    final PsiManager manager = changedFile.getManager();
    final PomModel model = PomManager.getModel(manager.getProject());
    final TreeAspect treeAspect = model.getModelAspect(TreeAspect.class);
    model.runTransaction(new PomTransactionBase(changedElement.getPsi(), treeAspect) {

        @Override
        public PomModelEvent runInner() {
            final PomModelEvent event = new PomModelEvent(model);
            final TreeChangeEvent destinationTreeChange = new TreeChangeEventImpl(treeAspect, changedFile);
            event.registerChangeSet(treeAspect, destinationTreeChange);
            action.makeChange(destinationTreeChange);
            changedElement.clearCaches();
            if (changedElement instanceof CompositeElement) {
                ((CompositeElement) changedElement).subtreeChanged();
            }
            return event;
        }
    });
}