diff options
Diffstat (limited to 'org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/hover/CompositeInformationControl.java')
-rw-r--r-- | org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/hover/CompositeInformationControl.java | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/hover/CompositeInformationControl.java b/org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/hover/CompositeInformationControl.java new file mode 100644 index 00000000000..a63088f2fb4 --- /dev/null +++ b/org.eclipse.ui.genericeditor/src/org/eclipse/ui/internal/genericeditor/hover/CompositeInformationControl.java @@ -0,0 +1,156 @@ +/******************************************************************************* + * Copyright (c) 2017 Red Hat Inc. and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * - Mickael Istria (Red Hat Inc.) + *******************************************************************************/ +package org.eclipse.ui.internal.genericeditor.hover; + +import java.util.Arrays; +import java.util.LinkedHashMap; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; + +import org.eclipse.core.runtime.Assert; +import org.eclipse.core.runtime.IStatus; +import org.eclipse.core.runtime.Status; +import org.eclipse.jface.text.AbstractInformationControl; +import org.eclipse.jface.text.IInformationControl; +import org.eclipse.jface.text.IInformationControlCreator; +import org.eclipse.jface.text.IInformationControlExtension; +import org.eclipse.jface.text.IInformationControlExtension2; +import org.eclipse.jface.text.IInformationControlExtension5; +import org.eclipse.jface.text.ITextHover; +import org.eclipse.swt.SWT; +import org.eclipse.swt.graphics.Point; +import org.eclipse.swt.layout.GridData; +import org.eclipse.swt.layout.GridLayout; +import org.eclipse.swt.widgets.Composite; +import org.eclipse.swt.widgets.Control; +import org.eclipse.swt.widgets.Shell; +import org.eclipse.ui.internal.genericeditor.GenericEditorPlugin; + +public class CompositeInformationControl extends AbstractInformationControl implements IInformationControlExtension2 { + + final LinkedHashMap<ITextHover, IInformationControlCreator> creators; + LinkedHashMap<ITextHover, IInformationControl> controls; + + public CompositeInformationControl(Shell parentShell, LinkedHashMap<ITextHover, IInformationControlCreator> creators) { + super(parentShell, true); // TODO check best constructor + Assert.isLegal(creators.size() > 1, "Do not compose a unique hover"); //$NON-NLS-1$ + this.creators = creators; + create(); + } + + @Override + public boolean hasContents() { + for (IInformationControl control : controls.values()) { + if (control instanceof IInformationControlExtension) { + if (((IInformationControlExtension)control).hasContents()) { + return true; + } + } else { + return true; + } + } + return false; + } + + @Override + public void setInput(Object input) { + @SuppressWarnings("unchecked") + Map<ITextHover, Object> inputs = (Map<ITextHover, Object>)input; + for (Entry<ITextHover, Object> entry : inputs.entrySet()) { + IInformationControl informationControl = controls.get(entry.getKey()); + if (informationControl != null) { + if (informationControl instanceof IInformationControlExtension2) { + ((IInformationControlExtension2)informationControl).setInput(entry.getValue()); + } else { + informationControl.setInformation(entry.getValue().toString()); + } + } + } + } + + @Override + public void createContent(Composite parent) { + this.controls = new LinkedHashMap<>(); // TODO maybe use canReuse or canReplace + GridLayout layout = new GridLayout(1, false); + parent.setLayout(layout); + boolean firstControl = true; + for (Entry<ITextHover, IInformationControlCreator> hoverControlCreator : this.creators.entrySet()) { + IInformationControl informationControl = hoverControlCreator.getValue().createInformationControl(parent.getShell()); + if (informationControl instanceof AbstractInformationControl) { + List<Control> children = Arrays.asList(((AbstractInformationControl)informationControl).getShell().getChildren()); + children.remove(parent); + if (children.size() == 0 ) { + continue; + } + for (Control control : children) { + control.setParent(parent); + control.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); + } + if (!firstControl) { + ((GridData)children.get(0).getLayoutData()).verticalIndent = 15; + } + controls.put(hoverControlCreator.getKey(), informationControl); + firstControl = false; + } else { + GenericEditorPlugin.getDefault().getLog().log(new Status(IStatus.WARNING, GenericEditorPlugin.BUNDLE_ID, + "Only text hovers producing an AbstractInformationControl can be aggregated; got a " + informationControl.getClass().getSimpleName())); //$NON-NLS-1$ + informationControl.dispose(); + } + } + } + + @Override + public void dispose() { + controls.values().forEach(IInformationControl::dispose); + controls.clear(); + super.dispose(); + } + + @Override + public IInformationControlCreator getInformationPresenterControlCreator() { + if (controls.isEmpty()) { + return null; + } else if (controls.size() == 1) { + IInformationControl control = controls.values().iterator().next(); + if (control instanceof IInformationControlExtension5) { + return ((IInformationControlExtension5)control).getInformationPresenterControlCreator(); + } + } else { + LinkedHashMap<ITextHover, IInformationControlCreator> presenterCreators = new LinkedHashMap<>(); + boolean allNull = true; + for (Entry<ITextHover, IInformationControl> hover : this.controls.entrySet()) { + IInformationControlCreator creator = null; + if (hover.getValue() instanceof IInformationControlExtension5) + creator = ((IInformationControlExtension5)hover.getValue()).getInformationPresenterControlCreator(); + if (creator == null) { + creator = this.creators.get(hover.getKey()); + } else { + allNull = false; + } + if (creator != null) { + presenterCreators.put(hover.getKey(), creator); + } + } + if (allNull) { + return null; + } + return new CompositeInformationControlCreator(presenterCreators); + } + return null; + } + + @Override + public Point computeSizeHint() { + return getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT, true); + } + +} |