still working on the twin column selection widget
git-svn-id: http://svn.d4science-ii.research-infrastructures.eu/gcube/trunk/portlets/widgets/ckan-metadata-publisher-widget@133944 82a268e6-3cf1-43bd-a215-b396298e98cf
This commit is contained in:
Costantino Perciante
parent
f5b1f324cb
commit
ca9eec91a3
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@ -0,0 +1,40 @@
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package org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.TwinColumnSelection;
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import com.google.gwt.cell.client.AbstractCell;
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import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
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/**
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* Cell that renders left side panel objects
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* @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
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*/
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public class ResourceCellLeft extends AbstractCell<ResourceElementBean>{
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@Override
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public void render(com.google.gwt.cell.client.Cell.Context context,
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ResourceElementBean value, SafeHtmlBuilder sb) {
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// Do not render an object if
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// - is null;
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// - has been moved to the other side;
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// - the parent folder is not null;
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if (value == null || value.isMovedToRight()) {
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return;
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}
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sb.appendHtmlConstant("<table style='width:100%'");
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sb.appendHtmlConstant("<tr><td><b>");
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sb.appendEscaped("Parent");
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sb.appendHtmlConstant("</b>");
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sb.appendEscaped(": " + (value.getParent() == null ? "-" : value.getParent().getName()));
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sb.appendHtmlConstant("</td></tr><td><b>");
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sb.appendEscaped("Name");
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sb.appendHtmlConstant("</b>");
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sb.appendEscaped(": " + value.getName());
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sb.appendHtmlConstant("</td></tr><td><b>");
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sb.appendEscaped("Type");
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sb.appendHtmlConstant("</b>");
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sb.appendEscaped(": " + (value.isFolder() ? "Folder" : "File"));
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sb.appendHtmlConstant("<td></tr></table>");
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}
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}
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@ -0,0 +1,32 @@
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package org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.TwinColumnSelection;
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import com.google.gwt.cell.client.AbstractCell;
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import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
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/**
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* Cell that renders right side panel objects
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* @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
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*/
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public class ResourceCellRight extends AbstractCell<ResourceElementBean>{
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@Override
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public void render(com.google.gwt.cell.client.Cell.Context context,
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ResourceElementBean value, SafeHtmlBuilder sb) {
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// Do not render an object if
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// - is null;
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// - is still on the left side
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if (value == null || !value.isMovedToRight() || value.isFolder()) {
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return;
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}
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sb.appendHtmlConstant("<table style='width:100%'");
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sb.appendHtmlConstant("<tr><td>");
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sb.appendHtmlConstant("<b>");
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sb.appendEscaped("Name");
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sb.appendHtmlConstant("</b>");
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sb.appendEscaped(": " + value.getFullPath());
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sb.appendHtmlConstant("</td></tr>");
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sb.appendHtmlConstant("</table>");
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}
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}
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@ -0,0 +1,133 @@
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package org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.TwinColumnSelection;
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import java.util.List;
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import com.google.gwt.core.shared.GWT;
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import com.google.gwt.view.client.ProvidesKey;
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/**
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* A left-side element for the list in TwinColumnSelection
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* @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
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*/
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public class ResourceElementBean implements Comparable<ResourceElementBean>{
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private int identifier;
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private String name;
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private boolean movedToRight;
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private boolean isFolder;
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private ResourceElementBean parent;
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private List<ResourceElementBean> children;
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private String fullPath;
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// to generate the identifiers
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private static int nextId = 0;
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/**
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* The key provider that provides the unique ID of a bean.
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*/
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public static final ProvidesKey<ResourceElementBean> KEY_PROVIDER = new ProvidesKey<ResourceElementBean>() {
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@Override
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public Object getKey(ResourceElementBean item) {
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return item == null ? null : item.getIdentifier();
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}
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};
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/**
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* @param identifier
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* @param parentFolder
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* @param name
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* @param movedToRight
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* @param isFolder
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*/
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public ResourceElementBean(
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ResourceElementBean parent,
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String name,
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boolean isFolder,
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List<ResourceElementBean> children,
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String fullPath) {
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this.identifier = nextId;
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nextId++;
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this.parent = parent;
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this.name = name;
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this.isFolder = isFolder;
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this.children = children;
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this.fullPath = fullPath;
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}
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public ResourceElementBean getParent() {
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return parent;
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}
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public void setParent(ResourceElementBean parent) {
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this.parent = parent;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public boolean isMovedToRight() {
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return movedToRight;
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}
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public void setMovedToRight(boolean movedToRight) {
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this.movedToRight = movedToRight;
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}
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public int getIdentifier() {
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return identifier;
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}
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public void setIdentifier(int identifier) {
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this.identifier = identifier;
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}
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public boolean isFolder() {
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return isFolder;
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}
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public void setFolder(boolean isFolder) {
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this.isFolder = isFolder;
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}
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public List<ResourceElementBean> getChildren() {
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return children;
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}
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public void setChildren(List<ResourceElementBean> children) {
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this.children = children;
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}
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public String getFullPath() {
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return fullPath;
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}
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public void setFullPath(String fullPath) {
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this.fullPath = fullPath;
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}
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@Override
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public String toString() {
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return "ResourceElementBean [identifier=" + identifier + ", name="
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+ name + ", movedToRight=" + movedToRight + ", isFolder="
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+ isFolder + ", fullPath=" + fullPath + "]";
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}
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@Override
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public boolean equals(Object o) {
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if (o instanceof ResourceElementBean) {
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return identifier == ((ResourceElementBean) o).identifier;
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}
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return false;
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}
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@Override
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public int compareTo(ResourceElementBean o) {
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return (o == null || o.name == null) ? -1 : -o.fullPath.compareTo(fullPath);
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}
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}
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package org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.TwinColumnSelection;
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import com.google.gwt.event.dom.client.ScrollEvent;
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import com.google.gwt.event.dom.client.ScrollHandler;
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import com.google.gwt.user.cellview.client.AbstractPager;
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import com.google.gwt.user.client.ui.ScrollPanel;
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import com.google.gwt.user.client.ui.Widget;
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import com.google.gwt.view.client.HasRows;
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/**
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* Basically a scroll panel
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* Partially changed from the code at http://samples.gwtproject.org/samples/Showcase/Showcase.html#!CwCellList
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* @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
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*/
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public class ShowMorePagerPanel extends AbstractPager{
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/**
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* The default increment size.
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*/
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public static final int DEFAULT_INCREMENT = 5;
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/**
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* The increment size.
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*/
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private int incrementSize = DEFAULT_INCREMENT;
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/**
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* The last scroll position.
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*/
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private int lastScrollPos = 0;
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/**
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* The scrollable panel.
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*/
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private final ScrollPanel scrollable = new ScrollPanel();
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/**
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* Construct a new {@link ShowMorePagerPanel}.
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*/
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public ShowMorePagerPanel() {
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initWidget(scrollable);
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// Do not let the scrollable take tab focus.
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scrollable.getElement().setTabIndex(-1);
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// Handle scroll events.
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scrollable.addScrollHandler(new ScrollHandler() {
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public void onScroll(ScrollEvent event) {
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// If scrolling up, ignore the event.
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int oldScrollPos = lastScrollPos;
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lastScrollPos = scrollable.getVerticalScrollPosition();
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if (oldScrollPos >= lastScrollPos) {
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return;
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}
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HasRows display = getDisplay();
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if (display == null) {
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return;
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}
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int maxScrollTop = scrollable.getWidget().getOffsetHeight()
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- scrollable.getOffsetHeight();
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if (lastScrollPos >= maxScrollTop) {
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// We are near the end, so increase the page size.
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int newPageSize = Math.min(
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display.getVisibleRange().getLength() + incrementSize,
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display.getRowCount());
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display.setVisibleRange(0, newPageSize);
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}
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}
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});
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}
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/**
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* Get the number of rows by which the range is increased when the scrollbar
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* reaches the bottom.
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* @return the increment size
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*/
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public int getIncrementSize() {
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return incrementSize;
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}
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@Override
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public void setDisplay(HasRows display) {
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assert display instanceof Widget : "display must extend Widget";
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scrollable.setWidget((Widget) display);
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super.setDisplay(display);
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}
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/**
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* Set the number of rows by which the range is increased when the scrollbar
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* reaches the bottom.
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*
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* @param incrementSize the incremental number of rows
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*/
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public void setIncrementSize(int incrementSize) {
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this.incrementSize = incrementSize;
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}
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@Override
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protected void onRangeOrRowCountChanged() {
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}
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}
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@ -1,12 +1,25 @@
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package org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.TwinColumnSelection;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import com.github.gwtbootstrap.client.ui.Button;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.dom.client.Style.BorderStyle;
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import com.google.gwt.dom.client.Style.Unit;
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import com.google.gwt.event.dom.client.ClickEvent;
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import com.google.gwt.event.dom.client.ClickHandler;
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import com.google.gwt.uibinder.client.UiBinder;
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import com.google.gwt.uibinder.client.UiField;
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import com.google.gwt.user.cellview.client.CellList;
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import com.google.gwt.user.cellview.client.HasKeyboardPagingPolicy.KeyboardPagingPolicy;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.VerticalPanel;
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import com.google.gwt.user.client.ui.Widget;
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import com.google.gwt.view.client.ListDataProvider;
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import com.google.gwt.view.client.MultiSelectionModel;
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import com.google.gwt.view.client.SelectionChangeEvent;
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/**
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* The twin column panels for selection of the files to attach to the catalague product.
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*
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*/
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public class TwinColumnSelectionMainPanel extends Composite{
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@UiField
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VerticalPanel leftColumn;
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@UiField
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VerticalPanel rightColumn;
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@UiField
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Button addToSelected;
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@UiField
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Button addToSelectedWithChild;
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@UiField
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Button addToUnselected;
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@UiField
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VerticalPanel leftContainer;
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@UiField
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VerticalPanel rightContainer;
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@UiField
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VerticalPanel buttonsPanel;
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@UiField
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Button allToRightButton;
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@UiField
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Button toRightButton;
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@UiField
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Button toLeftButton;
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@UiField
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Button allToLeftButton;
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@UiField
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Button goRootButton;
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private final String PANEL_BORDER_COLOR = "#08c";
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private final String PANEL_HEIGHT = "400px";
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private ShowMorePagerPanel showMorePanelLeft = new ShowMorePagerPanel();
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private ShowMorePagerPanel showMorePanelRight = new ShowMorePagerPanel();
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private CellList<ResourceElementBean> cellListLeft;
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private CellList<ResourceElementBean> cellListRight;
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private ListDataProvider<ResourceElementBean> dataProviderLeft = new ListDataProvider<ResourceElementBean>();
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private ListDataProvider<ResourceElementBean> dataProviderRight = new ListDataProvider<ResourceElementBean>();
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private MultiSelectionModel<ResourceElementBean> selectionModelRight;
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private MultiSelectionModel<ResourceElementBean> selectionModelLeft;
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private final List<ResourceElementBean> initialElements;
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private static TwinColumnSelectionMainPanelUiBinder uiBinder = GWT
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.create(TwinColumnSelectionMainPanelUiBinder.class);
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UiBinder<Widget, TwinColumnSelectionMainPanel> {
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}
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/**
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* Constructor
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*/
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public TwinColumnSelectionMainPanel() {
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public TwinColumnSelectionMainPanel(List<ResourceElementBean> elements) {
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initWidget(uiBinder.createAndBindUi(this));
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this.initialElements = elements;
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this.buttonsPanel.getElement().getStyle().setMarginTop(50, Unit.PCT);
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allToRightButton.getElement().getStyle().setMarginBottom(4, Unit.PX);
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toRightButton.getElement().getStyle().setMarginBottom(4, Unit.PX);
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toLeftButton.getElement().getStyle().setMarginBottom(4, Unit.PX);
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allToLeftButton.getElement().getStyle().setMarginBottom(4, Unit.PX);
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buttonsPanel.getElement().setAttribute("align", "center");
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prepareHandlers();
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initLeftSidePanel(elements);
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initRightSidePanel(elements);
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}
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/**
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* Initialize the left side panel
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*/
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private void initLeftSidePanel(List<ResourceElementBean> elements) {
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// initialize the left side list
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ResourceCellLeft cell = new ResourceCellLeft();
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// Set a key provider that provides a unique key for each object.
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cellListLeft = new CellList<ResourceElementBean>(cell, ResourceElementBean.KEY_PROVIDER);
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cellListLeft.setPageSize(elements.size());
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cellListLeft.setKeyboardPagingPolicy(KeyboardPagingPolicy.INCREASE_RANGE);
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// Add a selection model so we can select cells.
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selectionModelLeft = new MultiSelectionModel<ResourceElementBean>(ResourceElementBean.KEY_PROVIDER);
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cellListLeft.setSelectionModel(selectionModelLeft);
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// perform an action on selection
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selectionModelLeft.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
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public void onSelectionChange(SelectionChangeEvent event) {
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Iterator<ResourceElementBean> selectedObjectsIterator = selectionModelLeft.getSelectedSet().iterator();
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while (selectedObjectsIterator.hasNext()) {
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ResourceElementBean selectedBean = (ResourceElementBean) selectedObjectsIterator.next();
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if(selectedBean.isFolder()){
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if(selectionModelLeft.getSelectedSet().size() == 1){
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GWT.log("Selected folder");
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dataProviderLeft.setList(selectedBean.getChildren());
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dataProviderLeft.flush();
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dataProviderLeft.refresh();
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}
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selectionModelLeft.setSelected(selectedBean, false); // unselect the folder
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}
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}
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// enable the buttons that allows to move the objects to the right
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enableMoveToRightButtons(selectionModelLeft.getSelectedSet());
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}
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});
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// set the list into the provider
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dataProviderLeft.setList(elements);
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// set the cell list into the provider
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dataProviderLeft.addDataDisplay(cellListLeft);
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// manage showMorePanelLeft
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showMorePanelLeft.setDisplay(cellListLeft);
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showMorePanelLeft.setHeight(PANEL_HEIGHT);
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showMorePanelLeft.getElement().getStyle().setBorderStyle(BorderStyle.SOLID);
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showMorePanelLeft.getElement().getStyle().setBorderColor(PANEL_BORDER_COLOR);
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// add the list to the leftContainerPanel
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leftContainer.add(showMorePanelLeft);
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}
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/**
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* Initialize the left side panel
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*/
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private void initRightSidePanel(List<ResourceElementBean> elements) {
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GWT.log("Size is " + elements.size());
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// initialize the left side list
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ResourceCellRight cell = new ResourceCellRight();
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// Set a key provider that provides a unique key for each object.
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cellListRight = new CellList<ResourceElementBean>(cell, ResourceElementBean.KEY_PROVIDER);
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cellListRight.setKeyboardPagingPolicy(KeyboardPagingPolicy.INCREASE_RANGE);
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cellListRight.setPageSize(elements.size());
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// Add a selection model so we can select cells.
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selectionModelRight = new MultiSelectionModel<ResourceElementBean>(ResourceElementBean.KEY_PROVIDER);
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cellListRight.setSelectionModel(selectionModelRight);
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// perform an action on selection
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selectionModelRight.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
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public void onSelectionChange(SelectionChangeEvent event) {
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// enable the buttons that allows to move the objects to the left
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enableMoveToLeftButtons(selectionModelRight.getSelectedSet());
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}
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});
|
||||
|
||||
|
||||
// set the list into the provider
|
||||
dataProviderRight.setList(elements);
|
||||
|
||||
// set the cell list into the provider
|
||||
dataProviderRight.addDataDisplay(cellListRight);
|
||||
|
||||
// manage showMorePanelRight
|
||||
showMorePanelRight.setDisplay(cellListRight);
|
||||
showMorePanelRight.setHeight(PANEL_HEIGHT);
|
||||
showMorePanelRight.getElement().getStyle().setBorderStyle(BorderStyle.SOLID);
|
||||
showMorePanelRight.getElement().getStyle().setBorderColor(PANEL_BORDER_COLOR);
|
||||
|
||||
// add the list to the leftContainerPanel
|
||||
rightContainer.add(showMorePanelRight);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Enable/disable the buttons to move objects from left to right properly.
|
||||
* @param setselectedItemsLeft
|
||||
*/
|
||||
private void enableMoveToRightButtons(Set<ResourceElementBean> setselectedItemsLeft){
|
||||
|
||||
if(setselectedItemsLeft.size() > 1){
|
||||
allToRightButton.setEnabled(true);
|
||||
toRightButton.setEnabled(false);
|
||||
}
|
||||
else{
|
||||
allToRightButton.setEnabled(false);
|
||||
toRightButton.setEnabled(true);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Enable/disable the buttons to move objects from right to left properly.
|
||||
* @param setselectedItemsRight
|
||||
*/
|
||||
private void enableMoveToLeftButtons(Set<ResourceElementBean> setselectedItemsRight){
|
||||
|
||||
if(setselectedItemsRight.size() > 1){
|
||||
allToLeftButton.setEnabled(true);
|
||||
toLeftButton.setEnabled(false);
|
||||
}
|
||||
else{
|
||||
allToLeftButton.setEnabled(false);
|
||||
toLeftButton.setEnabled(true);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepare the buttons' handlers
|
||||
*/
|
||||
private void prepareHandlers() {
|
||||
|
||||
goRootButton.addClickHandler(new ClickHandler() {
|
||||
|
||||
@Override
|
||||
public void onClick(ClickEvent event) {
|
||||
|
||||
dataProviderLeft.setList(initialElements);
|
||||
dataProviderLeft.flush();
|
||||
|
||||
}
|
||||
});
|
||||
|
||||
allToRightButton.addClickHandler(new ClickHandler() {
|
||||
|
||||
@Override
|
||||
public void onClick(ClickEvent event) {
|
||||
|
||||
moveToRight(selectionModelLeft.getSelectedSet());
|
||||
|
||||
}
|
||||
});
|
||||
|
||||
toRightButton.addClickHandler(new ClickHandler() {
|
||||
|
||||
@Override
|
||||
public void onClick(ClickEvent event) {
|
||||
|
||||
moveToRight(selectionModelLeft.getSelectedSet());
|
||||
|
||||
}
|
||||
});
|
||||
|
||||
allToLeftButton.addClickHandler(new ClickHandler() {
|
||||
|
||||
@Override
|
||||
public void onClick(ClickEvent event) {
|
||||
|
||||
moveToLeft(selectionModelRight.getSelectedSet());
|
||||
|
||||
}
|
||||
});
|
||||
|
||||
toLeftButton.addClickHandler(new ClickHandler() {
|
||||
|
||||
@Override
|
||||
public void onClick(ClickEvent event) {
|
||||
|
||||
moveToLeft(selectionModelRight.getSelectedSet());
|
||||
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Move to right
|
||||
* @param toMoveRight
|
||||
*/
|
||||
private void moveToRight(Set<ResourceElementBean> set){
|
||||
|
||||
if(set == null)
|
||||
return;
|
||||
|
||||
Iterator<ResourceElementBean> iterator = set.iterator();
|
||||
while (iterator.hasNext()) {
|
||||
ResourceElementBean resourceElementBean = (ResourceElementBean) iterator
|
||||
.next();
|
||||
resourceElementBean.setMovedToRight(true);
|
||||
GWT.log("To move right " + resourceElementBean);
|
||||
}
|
||||
|
||||
// refresh providers
|
||||
dataProviderLeft.flush();
|
||||
dataProviderLeft.refresh();
|
||||
dataProviderRight.flush();
|
||||
dataProviderRight.refresh();
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Move to right
|
||||
* @param toMoveLeft
|
||||
*/
|
||||
private void moveToLeft(Set<ResourceElementBean> set){
|
||||
|
||||
if(set == null)
|
||||
return;
|
||||
|
||||
Iterator<ResourceElementBean> iterator = set.iterator();
|
||||
while (iterator.hasNext()) {
|
||||
ResourceElementBean resourceElementBean = (ResourceElementBean) iterator
|
||||
.next();
|
||||
resourceElementBean.setMovedToRight(false);
|
||||
GWT.log("To move left " + resourceElementBean);
|
||||
}
|
||||
|
||||
// refresh providers
|
||||
dataProviderLeft.flush();
|
||||
dataProviderLeft.refresh();
|
||||
dataProviderRight.flush();
|
||||
dataProviderRight.refresh();
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,25 +2,33 @@
|
|||
<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
|
||||
xmlns:g="urn:import:com.google.gwt.user.client.ui" xmlns:b="urn:import:com.github.gwtbootstrap.client.ui">
|
||||
<ui:style>
|
||||
<!--
|
||||
EMPTY
|
||||
-->
|
||||
.right-vertical-panel {
|
||||
margin-top: 30px;
|
||||
margin-left: 0px;
|
||||
}
|
||||
</ui:style>
|
||||
<g:HTMLPanel>
|
||||
<b:FluidContainer>
|
||||
<b:FluidRow>
|
||||
<b:Column size="5" ui:field="leftColumn">
|
||||
<g:VerticalPanel ui:field="leftContainer"></g:VerticalPanel>
|
||||
</b:Column>
|
||||
<b:Column size="2" ui:field="centralPanel">
|
||||
<g:VerticalPanel>
|
||||
<b:Button icon="ANGLE_RIGHT" ui:fied="addToSelected"></b:Button>
|
||||
<b:Button icon="DOUBLE_ANGLE_RIGHT" ui:field="addToSelectedWithChild"></b:Button>
|
||||
<b:Button icon="ANGLE_LEFT" ui:fied="addToUnselected"></b:Button>
|
||||
<b:Column size="3" ui:field="leftColumn">
|
||||
<b:Button enabled="true" type="LINK" ui:field="goRootButton">Root level</b:Button>
|
||||
<g:VerticalPanel ui:field="leftContainer" width="100%">
|
||||
</g:VerticalPanel>
|
||||
</b:Column>
|
||||
<b:Column size="5" ui:field="rightColumn">
|
||||
<g:VerticalPanel ui:field="rightContainer"></g:VerticalPanel>
|
||||
<b:Column size="1" ui:field="centralPanel">
|
||||
<g:VerticalPanel ui:field="buttonsPanel">
|
||||
<b:Button ui:field="allToRightButton" name="toRight"
|
||||
enabled="false" title="Move selected files to right" text=">>" />
|
||||
<b:Button ui:field="toRightButton" name="toRight"
|
||||
enabled="false" title="Move file to the right" text=">" />
|
||||
<b:Button ui:field="toLeftButton" name="toLeft" enabled="false"
|
||||
title="Move file to the left" text="<" />
|
||||
<b:Button ui:field="allToLeftButton" name="toRight"
|
||||
enabled="false" title="Move selected files to left" text="<<" />
|
||||
</g:VerticalPanel>
|
||||
</b:Column>
|
||||
<b:Column size="3" ui:field="rightColumn">
|
||||
<g:VerticalPanel ui:field="rightContainer" styleName="{style.right-vertical-panel}" width="100%"></g:VerticalPanel>
|
||||
</b:Column>
|
||||
</b:FluidRow>
|
||||
</b:FluidContainer>
|
||||
|
|
|
|||
Loading…
Reference in New Issue