root / src / gr / ebs / gss / client / FileMenu.java @ c24efcc9
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/*
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* Copyright 2007, 2008, 2009, 2010 Electronic Business Systems Ltd.
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*
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* This file is part of GSS.
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*
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* GSS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GSS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GSS. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gr.ebs.gss.client; |
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import gr.ebs.gss.client.commands.EmptyTrashCommand; |
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import gr.ebs.gss.client.commands.NewFolderCommand; |
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import gr.ebs.gss.client.commands.PropertiesCommand; |
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import gr.ebs.gss.client.commands.RefreshCommand; |
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import gr.ebs.gss.client.commands.UploadFileCommand; |
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import gr.ebs.gss.client.rest.RestCommand; |
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import gr.ebs.gss.client.rest.resource.FileResource; |
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import gr.ebs.gss.client.rest.resource.GroupUserResource; |
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import java.util.List; |
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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.http.client.URL; |
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import com.google.gwt.resources.client.ClientBundle; |
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import com.google.gwt.resources.client.ImageResource; |
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import com.google.gwt.user.client.Command; |
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import com.google.gwt.user.client.ui.AbstractImagePrototype; |
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import com.google.gwt.user.client.ui.MenuBar; |
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import com.google.gwt.user.client.ui.PopupPanel; |
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import com.google.gwt.user.client.ui.TreeItem; |
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/**
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* The 'File' menu implementation.
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*/
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public class FileMenu extends PopupPanel implements ClickHandler { |
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/**
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* The widget's images.
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*/
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private final Images images; |
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/**
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* An image bundle for this widgets images.
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*/
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public interface Images extends ClientBundle,FilePropertiesDialog.Images { |
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@Source("gr/ebs/gss/resources/folder_new.png") |
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ImageResource folderNew(); |
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@Source("gr/ebs/gss/resources/folder_outbox.png") |
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ImageResource fileUpdate(); |
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@Source("gr/ebs/gss/resources/view_text.png") |
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ImageResource viewText(); |
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@Source("gr/ebs/gss/resources/folder_inbox.png") |
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ImageResource download(); |
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@Source("gr/ebs/gss/resources/trashcan_empty.png") |
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ImageResource emptyTrash(); |
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@Source("gr/ebs/gss/resources/internet.png") |
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ImageResource sharing(); |
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@Source("gr/ebs/gss/resources/refresh.png") |
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ImageResource refresh(); |
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} |
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final MenuBar contextMenu = new MenuBar(true); |
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/**
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* The widget's constructor.
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*
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* @param _images the image bundle passed on by the parent object
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*/
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public FileMenu(final Images _images) { |
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// The popup's constructor's argument is a boolean specifying that it
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// auto-close itself when the user clicks outside of it.
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super(true); |
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setAnimationEnabled(true);
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images = _images; |
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add(contextMenu); |
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} |
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@Override
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public void onClick(ClickEvent event) { |
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final FileMenu menu = new FileMenu(images); |
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final int left = event.getRelativeElement().getAbsoluteLeft(); |
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final int top = event.getRelativeElement().getAbsoluteTop() + event.getRelativeElement().getOffsetHeight(); |
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menu.setPopupPosition(left, top); |
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menu.show(); |
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} |
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/**
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* Do some validation before downloading a file.
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*/
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void preDownloadCheck() {
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Object selection = GSS.get().getCurrentSelection();
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if (selection == null || !(selection instanceof FileResource)) { |
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GSS.get().displayError("You have to select a file first");
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return;
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} |
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} |
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/**
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* Create a download link for the respective menu item, if the currently
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* selected object is a file.
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*
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* @param link a String array with two elements that is modified so that the
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* first position contains the opening tag and the second one the
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* closing tag
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* @param forceDownload If true, link will be such that browser should ask for filename
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* and save location
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*/
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void createDownloadLink(String[] link, boolean forceDownload) { |
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String downloadURL = getDownloadURL();
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if (!downloadURL.isEmpty()) {
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link[0] = "<a class='hidden-link' href='" + downloadURL |
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+ (forceDownload ? "&dl=1" : "") + "' target='_blank'>"; |
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link[1] = "</a>"; |
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} |
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} |
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public String getDownloadURL() { |
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GSS app = GSS.get(); |
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Object selection = app.getCurrentSelection();
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if (selection != null && selection instanceof FileResource) { |
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FileResource file = (FileResource) selection; |
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return getDownloadURL(file);
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} |
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return ""; |
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} |
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public String getDownloadURL(FileResource file) { |
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GSS app = GSS.get(); |
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if (file != null) { |
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String dateString = RestCommand.getDate();
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String resource = file.getUri().substring(app.getApiPath().length()-1,file.getUri().length()); |
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String sig = app.getCurrentUserResource().getUsername()+" "+RestCommand.calculateSig("GET", dateString, resource, RestCommand.base64decode(app.getToken())); |
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return file.getUri() + "?Authorization=" + URL.encodeComponent(sig) + "&Date="+URL.encodeComponent(dateString); |
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} |
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return ""; |
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} |
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public MenuBar createMenu() { |
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contextMenu.clearItems(); |
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contextMenu.setAutoOpen(false);
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final Command downloadCmd = new Command() { |
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public void execute() { |
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hide(); |
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preDownloadCheck(); |
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} |
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}; |
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Folders folders = GSS.get().getFolders(); |
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TreeItem selectedItem = folders.getCurrent(); |
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boolean downloadVisible = GSS.get().getCurrentSelection() != null && GSS.get().getCurrentSelection() instanceof FileResource; |
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boolean propertiesVisible = !(selectedItem != null && (folders.isTrash(selectedItem) || folders.isMyShares(selectedItem) || folders.isOthersShared(selectedItem) || selectedItem.getUserObject() instanceof GroupUserResource || GSS.get().getCurrentSelection() instanceof List)); |
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boolean newFolderVisible = !(selectedItem != null && (folders.isTrash(selectedItem) || folders.isMyShares(selectedItem)|| folders.isOthersShared(selectedItem))); |
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boolean uploadVisible = !(selectedItem != null && (folders.isTrash(selectedItem) || folders.isMyShares(selectedItem)|| folders.isOthersShared(selectedItem))); |
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if(newFolderVisible)
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contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.folderNew()).getHTML() + " New Folder</span>", true, new NewFolderCommand(this, images)); |
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if(uploadVisible)
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contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.fileUpdate()).getHTML() + " Upload</span>", true, new UploadFileCommand(this)); |
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if (downloadVisible) {
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String[] link = {"", ""}; |
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createDownloadLink(link, false);
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contextMenu.addItem("<span>" + link[0] + AbstractImagePrototype.create(images.download()).getHTML() + " Download" + link[1] + "</span>", true, downloadCmd); |
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createDownloadLink(link, true);
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contextMenu.addItem("<span>" + link[0] + AbstractImagePrototype.create(images.download()).getHTML() + " Save As" + link[1] + "</span>", true, downloadCmd); |
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} |
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contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.emptyTrash()).getHTML() + " Empty Trash</span>", true, new EmptyTrashCommand(this)); |
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contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.refresh()).getHTML() + " Refresh</span>", true, new RefreshCommand(this, images)); |
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contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.sharing()).getHTML() + " Sharing</span>", true, new PropertiesCommand(this, images, 1)) |
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.setVisible(propertiesVisible); |
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contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.viewText()).getHTML() + " Properties</span>", true, new PropertiesCommand(this, images, 0)) |
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.setVisible(propertiesVisible); |
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return contextMenu;
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} |
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} |