зеркало из https://github.com/mozilla/pjs.git
Upcoming outliner controller foo. Not yet part of build.
This commit is contained in:
blakeross%telocity.com
Родитель
53b0aec580
Коммит
184dd80ab9
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@ -0,0 +1,449 @@
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/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Peter Annema <disttsc@bart.nl>
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* Blake Ross <blakeross@telocity.com>
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* Alec Flett <alecf@netscape.com>
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*/
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// helper routines, for doing rdf-based cut/copy/paste/etc
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const NC_NS = "http://home.netscape.com/NC-rdf#";
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const RDF_NS = "http://www.w3.org/1999/02/22-rdf-syntax-ns#";
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const nsTransferable_contractid = "@mozilla.org/widget/transferable;1";
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const clipboard_contractid = "@mozilla.org/widget/clipboard;1";
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const rdf_contractid = "@mozilla.org/rdf/rdf-service;1";
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const separatorUri = NC_NS + "BookmarkSeparator";
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const supportswstring_contractid = "@mozilla.org/supports-wstring;1";
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const rdfc_contractid = "@mozilla.org/rdf/container;1";
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// some oft-used interfaces
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const nsISupportsWString = Components.interfaces.nsISupportsWString;
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const nsIClipboard = Components.interfaces.nsIClipboard;
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const nsITransferable = Components.interfaces.nsITransferable;
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const nsIRDFLiteral = Components.interfaces.nsIRDFLiteral;
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const nsIRDFContainer = Components.interfaces.nsIRDFContainer;
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var Clipboard = Components.classes[clipboard_contractid].getService(Components.interfaces.nsIClipboard);
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var RDF = Components.classes[rdf_contractid].getService(Components.interfaces.nsIRDFService);
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var nameResource = RDF.GetResource(NC_NS + "Name");
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var typeRes = RDF.GetResource(RDF_NS + "type");
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var bmTypeRes = RDF.GetResource(NC_NS + "Bookmark");
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// this is a hack for now - just assume containment
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var containment = RDF.GetResource(NC_NS + "child");
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function isContainer(node)
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{
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return node.getAttribute("container") == "true";
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}
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function getWStringData(wstring, len)
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{
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wstring = wstring.QueryInterface(nsISupportsWString);
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var result = wstring.data.substring(0, len/2);
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return result;
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}
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function nsTreeController_SetTransferData(transferable, flavor, text)
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{
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if (!text) return;
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var textData = Components.classes[supportswstring_contractid].createInstance(nsISupportsWString);
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textData.data = text;
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transferable.addDataFlavor(flavor);
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transferable.setTransferData(flavor, textData, text.length*2);
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}
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function nsTreeController_copy(tree)
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{
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var select_list = tree.selectedItems;
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if (!select_list) return false;
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if (select_list.length < 1) return false;
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var datasource = tree.database;
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// Build a url that encodes all the select nodes
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// as well as their parent nodes
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var url = "";
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var text = "";
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var html = "";
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for (var nodeIndex = 0; nodeIndex < select_list.length; nodeIndex++)
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{
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var node = select_list[nodeIndex];
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if (!node) continue;
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// for now just use the .id attribute.. at some point we should support
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// the #URL property for anonymous resources (see bookmarks.js)
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//var ID = getAbsoluteID("bookmarksTree", node);
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var ID = node.id;
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var IDRes = RDF.GetResource(ID);
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var nameNode = datasource.GetTarget(IDRes, nameResource, true);
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nameNode =
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nameNode.QueryInterface(nsIRDFLiteral);
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var theName = nameNode.Value;
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url += "ID:{" + ID + "};";
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url += "NAME:{" + theName + "};";
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if (isContainer(node))
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{
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// gack, need to generalize this
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var type = node.getAttribute("type");
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if (type == seperatorUri)
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{
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// Note: can't encode separators in text, just html
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html += "<hr><p>";
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}
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else
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{
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text += ID + "\r";
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html += "<a href='" + ID + "'>";
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if (theName) html += theName;
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html += "</a><p>";
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}
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}
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}
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if (url == "") return false;
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// get some useful components
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var trans = Components.classes[nsTransferable_contractid].createInstance(nsITransferable);
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Clipboard.emptyClipboard(nsIClipboard.kGlobalClipboard);
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this.SetTransferData(trans, "moz/bookmarkclipboarditem", url);
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this.SetTransferData(trans, "text/unicode", text);
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this.SetTransferData(trans, "text/html", html);
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Clipboard.setData(trans, null, nsIClipboard.kGlobalClipboard);
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return true;
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}
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function nsTreeController_cut(tree)
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{
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if (this.copy(tree)) {
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this.doDelete(tree);
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return true; // copy succeeded, don't care if delete failed
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} else
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return false; // copy failed, so did cut
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}
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function nsOutlinerController_selectAll(outlinerNode)
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{
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alert('hey');
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outlinerNode.outlinerBoxObject.view.selection.selectAll();
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}
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function nsTreeController_paste(tree)
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{
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var select_list = tree.selectedItems;
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if (!select_list) return false;
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if (select_list.length != 1) return false;
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var datasource = tree.database;
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var pasteNodeID = select_list[0].id;
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var isContainerFlag = isContainer(select_list[0]);
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var trans_uri = "@mozilla.org/widget/transferable;1";
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var trans = Components.classes[nsTransferable_contractid].createInstance(nsITransferable);
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trans.addDataFlavor("moz/bookmarkclipboarditem");
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Clipboard.getData(trans, nsIClipboard.kGlobalClipboard);
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var data = new Object();
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var dataLen = new Object();
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trans.getTransferData("moz/bookmarkclipboarditem", data, dataLen);
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var url = getWStringData(data.value, dataLen.value);
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if (!url) return false;
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var strings = url.split(";");
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if (!strings) return false;
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var RDFC = Components.classes[rdfc_contractid].getService(nsIRDFContainer);
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var nameRes = RDF.GetResource(NC_NS + "Name");
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if (!nameRes) return false;
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pasteNodeRes = RDF.GetResource(pasteNodeID);
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if (!pasteNodeRes) return false;
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var pasteContainerRes = null;
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var pasteNodeIndex = -1;
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if (isContainerFlag == true)
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{
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pasteContainerRes = pasteNodeRes;
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}
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else
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{
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var parID = select_list[0].parentNode.parentNode.getAttribute("ref");
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if (!parID) {
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parID = select_list[0].parentNode.parentNode.getAttribute("id");
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}
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if (!parID) return false;
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pasteContainerRes = RDF.GetResource(parID);
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if (!pasteContainerRes) return false;
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}
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RDFC.Init(datasource, pasteContainerRes);
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if (isContainerFlag == false)
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{
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pasteNodeIndex = RDFC.IndexOf(pasteNodeRes);
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if (pasteNodeIndex < 0) return false; // how did that happen?
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}
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var dirty = false;
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for (var x=0; x<strings.length; x=x+2)
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{
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var theID = strings[x];
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var theName = strings[x+1];
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// make sure we have a real name/id combo
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if ((theID.indexOf("ID:{") != 0) ||
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(theName.indexOf("NAME:{") != 0))
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continue;
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theID = theID.substr(4, theID.length-5);
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theName = theName.substr(6, theName.length-7);
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var IDRes = RDF.GetResource(theID);
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if (!IDRes) continue;
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if (RDFC.IndexOf(IDRes) > 0)
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{
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continue;
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}
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// assert the name into the DS
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if (theName)
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{
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var NameLiteral = RDF.GetLiteral(theName);
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datasource.Assert(IDRes, nameRes, NameLiteral, true);
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dirty = true;
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}
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// add the element at the appropriate location
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if (isContainerFlag == true)
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{
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RDFC.AppendElement(IDRes);
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}
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else
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{
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RDFC.InsertElementAt(IDRes, pasteNodeIndex++, true);
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}
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dirty = true;
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// make sure appropriate bookmark type is set
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var bmTypeNode = datasource.GetTarget( IDRes, typeRes, true );
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if (!bmTypeNode)
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{
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// set default bookmark type
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datasource.Assert(IDRes, typeRes, bmTypeRes, true);
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}
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}
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if (dirty)
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{
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var remote = datasource.QueryInterface(Components.interfaces.nsIRDFRemoteDataSource);
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if (remote)
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{
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remote.Flush();
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}
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}
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return true;
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}
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function nsTreeController_delete(tree)
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{
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// this should eventually be a parameter to this function
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var promptFlag = false;
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if (!tree) return false;
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var select_list = tree.selectedItems;
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if (!select_list) return false;
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if (select_list.length < 1) return false;
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var datasource = tree.database;
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if (promptFlag == true)
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{
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var deleteStr = '';
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if (select_list.length == 1) {
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deleteStr = get_localized_string("DeleteItem");
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} else {
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deleteStr = get_localized_string("DeleteItems");
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}
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var ok = confirm(deleteStr);
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if (!ok) return false;
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}
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var RDFC = Components.classes[rdfc_contractid].getService(nsIRDFContainer);
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var dirty = false;
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// note: backwards delete so that we handle odd deletion cases such as
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// deleting a child of a folder as well as the folder itself
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for (var nodeIndex=select_list.length-1; nodeIndex>=0; nodeIndex--)
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{
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var node = select_list[nodeIndex];
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if (!node) continue;
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var ID = node.id;
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if (!ID) continue;
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// XXX - make tree templates flag special folders as read-only
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// don't allow deletion of various "special" folders
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if ((ID == "NC:BookmarksRoot") || (ID == "NC:IEFavoritesRoot"))
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{
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continue;
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}
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var parentID = node.parentNode.parentNode.getAttribute("ref");
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if (!parentID)
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parentID = node.parentNode.parentNode.id;
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if (!parentID) continue;
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var IDRes = RDF.GetResource(ID);
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if (!IDRes) continue;
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var parentIDRes = RDF.GetResource(parentID);
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if (!parentIDRes) continue;
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try {
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// first try a container-based approach
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RDFC.Init(datasource, parentIDRes);
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RDFC.RemoveElement(IDRes, true);
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} catch (ex) {
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// nope! just remove the parent/child assertion then
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datasource.Unassert(parentIDRes, containment, IDRes);
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}
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dirty = true;
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}
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if (dirty == true)
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{
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try {
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var remote = datasource.QueryInterface(Components.interfaces.nsIRDFRemoteDataSource);
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remote.Flush();
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} catch (ex) {
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}
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}
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return true;
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}
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function nsTreeController(tree)
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{
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this.treeId = tree.id;
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tree.controllers.appendController(this);
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}
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nsTreeController.prototype =
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{
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// store the tree's Id, rather than the tree,
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// to avoid holding a strong ref
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treeId: null,
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getTree : function()
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{
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return document.getElementById(this.treeId);
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},
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SetTransferData : nsTreeController_SetTransferData,
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supportsCommand: function(command)
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{
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switch(command)
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{
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case "cmd_cut":
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case "cmd_copy":
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case "cmd_paste":
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case "cmd_delete":
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case "cmd_selectAll":
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return true;
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default:
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return false;
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}
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},
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isCommandEnabled: function(command)
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{
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var haveCommand;
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switch (command)
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{
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// commands which do not require selection
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case "cmd_paste":
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return (this.doPaste != undefined);
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case "cmd_selectAll":
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// we can always select all
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return true;
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// these commands require selection
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case "cmd_cut":
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haveCommand = (this.cut != undefined);
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break;
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case "cmd_copy":
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haveCommand = (this.copy != undefined);
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break;
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case "cmd_delete":
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haveCommand = (this.doDelete != undefined);
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break;
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}
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// if we get here, then we have a command that requires selection
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var tree = this.getTree();
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var haveSelection = (tree.selectedItems.length > 0);
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return (haveCommand && haveSelection);
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},
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doCommand: function(command)
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{
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switch(command)
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{
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case "cmd_cut":
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return this.cut(this.getTree());
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case "cmd_copy":
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return this.copy(this.getTree());
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case "cmd_paste":
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return this.paste(this.getTree());
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case "cmd_delete":
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return this.doDelete(this.getTree());
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case "cmd_selectAll":
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return this.selectAll(this.getTree());
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}
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return false;
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},
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copy: nsTreeController_copy,
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cut: nsTreeController_cut,
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paste: nsTreeController_paste,
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doDelete: nsTreeController_delete
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selectAll: nsTreeController_selectAll
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}
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