зеркало из https://github.com/mozilla/pjs.git
moving all d&d code into a separate file: navigatorDD.js (r=shaver).
This commit is contained in:
pinkerton%netscape.com
Родитель
fdff0e6e7b
Коммит
d2b0d98f8a
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@ -42,403 +42,6 @@ catch (ex) {
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var defaultStatus = "default status text";
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var explicitURL = false;
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//
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// Determine if d&d is on or not, off by default for beta but we want mozilla
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// folks to be able to turn it on if they so desire.
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//
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var gDragDropEnabled = false;
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try {
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gDragDropEnabled = pref.GetBoolPref("xpfe.dragdrop.enable");
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}
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catch (ex) {
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dump("failed to get the xpfe.dragdrop.enable pref, assuming it is off\n");
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}
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function GeneralDrag ( event )
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{
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if ( !gDragDropEnabled )
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return;
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dump("****** DRAG MADE IT TO TOPLEVEL WINDOW ********\n");
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}
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function BeginDragPersonalToolbar ( event )
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{
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if ( !gDragDropEnabled )
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return;
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//XXX we rely on a capturer to already have determined which item the mouse was over
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//XXX and have set an attribute.
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// if the click is on the toolbar proper, ignore it. We only care about clicks on
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// items.
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var toolbar = document.getElementById("PersonalToolbar");
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if ( event.target == toolbar )
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return true; // continue propagating the event
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// since the database is not on the toolbar, but on the innermost box, we need to
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// make sure we can find it before we go any further. If we can't find it, we're
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// up the creek, but don't keep propagating the event.
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var childWithDatabase = document.getElementById("innermostBox");
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if ( ! childWithDatabase ) {
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event.preventBubble();
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return;
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}
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// pinkerton
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// right now, the issue of d&d and these popup menus is really wacky, so i'm punting
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// until I have time to fix it and we can come up with a good UI gesture (bug 19588). In
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// the meantime, if the target is a container, don't initiate the drag.
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var container = event.target.getAttribute("container");
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if ( container == "true" )
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return;
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var dragStarted = false;
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var dragService = Components.classes["component://netscape/widget/dragservice"].getService();
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if ( dragService ) dragService = dragService.QueryInterface(Components.interfaces.nsIDragService);
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if ( dragService ) {
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var trans = Components.classes["component://netscape/widget/transferable"].createInstance();
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if ( trans ) trans = trans.QueryInterface(Components.interfaces.nsITransferable);
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if ( trans ) {
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trans.addDataFlavor("moz/toolbaritem");
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var genData = Components.classes["component://netscape/supports-wstring"].createInstance();
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if ( genData ) genData = genData.QueryInterface(Components.interfaces.nsISupportsWString);
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trans.addDataFlavor("text/plain");
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var genTextData = Components.classes["component://netscape/supports-string"].createInstance();
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if ( genTextData ) genTextData = genTextData.QueryInterface(Components.interfaces.nsISupportsString);
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if ( genData && genTextData ) {
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var id = event.target.getAttribute("id");
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genData.data = id;
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genTextData.data = id;
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dump("ID: " + id + "\n");
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var database = childWithDatabase.database;
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var rdf = Components.classes["component://netscape/rdf/rdf-service"].getService();
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if (rdf) rdf = rdf.QueryInterface(Components.interfaces.nsIRDFService);
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if ((!rdf) || (!database)) return(false);
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// make sure its a bookmark, bookmark separator, or bookmark folder
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var src = rdf.GetResource(id, true);
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var prop = rdf.GetResource("http://www.w3.org/1999/02/22-rdf-syntax-ns#type", true);
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var target = database.GetTarget(src, prop, true);
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/*
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pinkerton
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this doesn't work anymore (target is null), not sure why.
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if (target) target = target.QueryInterface(Components.interfaces.nsIRDFResource);
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if (target) target = target.Value;
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if ((!target) || (target == "")) {dump("BAD\n"); return(false);}
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dump("Type: '" + target + "'\n");
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if ((target != "http://home.netscape.com/NC-rdf#BookmarkSeparator") &&
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(target != "http://home.netscape.com/NC-rdf#Bookmark") &&
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(target != "http://home.netscape.com/NC-rdf#Folder")) return(false);
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*/
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trans.setTransferData ( "moz/toolbaritem", genData, id.length*2 ); // double byte data (len*2)
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trans.setTransferData ( "text/plain", genTextData, id.length ); // single byte data
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var transArray = Components.classes["component://netscape/supports-array"].createInstance();
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if ( transArray ) transArray = transArray.QueryInterface(Components.interfaces.nsISupportsArray);
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if ( transArray ) {
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// put it into the transferable as an |nsISupports|
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var genTrans = trans.QueryInterface(Components.interfaces.nsISupports);
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transArray.AppendElement(genTrans);
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var nsIDragService = Components.interfaces.nsIDragService;
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dragService.invokeDragSession ( transArray, null, nsIDragService.DRAGDROP_ACTION_COPY +
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nsIDragService.DRAGDROP_ACTION_MOVE );
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dragStarted = true;
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}
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} // if data object
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} // if transferable
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} // if drag service
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if ( dragStarted ) // don't propagate the event if a drag has begun
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event.preventBubble();
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return true;
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} // BeginDragPersonalToolbar
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function DropPersonalToolbar ( event )
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{
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if ( !gDragDropEnabled )
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return;
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var dropAccepted = false;
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var dragService = Components.classes["component://netscape/widget/dragservice"].getService();
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if ( dragService ) dragService = dragService.QueryInterface(Components.interfaces.nsIDragService);
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if ( dragService ) {
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var dragSession = dragService.getCurrentSession();
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if ( dragSession ) {
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var trans = Components.classes["component://netscape/widget/transferable"].createInstance();
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if ( trans ) trans = trans.QueryInterface(Components.interfaces.nsITransferable);
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if ( trans ) {
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// get references to various services/resources once up-front
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var personalToolbarRes = null;
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var rdf = Components.classes["component://netscape/rdf/rdf-service"].getService();
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if (rdf) rdf = rdf.QueryInterface(Components.interfaces.nsIRDFService);
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if (rdf)
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{
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personalToolbarRes = rdf.GetResource("NC:PersonalToolbarFolder");
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}
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var rdfc = Components.classes["component://netscape/rdf/container"].getService();
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if (rdfc) rdfc = rdfc.QueryInterface(Components.interfaces.nsIRDFContainer);
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trans.addDataFlavor("moz/toolbaritem");
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for ( var i = 0; i < dragSession.numDropItems; ++i ) {
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dragSession.getData ( trans, i );
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var dataObj = new Object();
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var bestFlavor = new Object();
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var len = new Object();
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trans.getAnyTransferData ( bestFlavor, dataObj, len );
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if ( dataObj ) dataObj = dataObj.value.QueryInterface(Components.interfaces.nsISupportsWString);
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if ( dataObj ) {
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// remember len is in bytes, not chars
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var id = dataObj.data.substring(0, len.value / 2);
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dump("ID: '" + id + "'\n");
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var objectRes = rdf.GetResource(id, true);
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dragSession.canDrop = true;
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dropAccepted = true;
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var boxWithDatabase = document.getElementById("innermostBox");
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var database = boxWithDatabase.database;
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if (database && rdf && rdfc && personalToolbarRes && objectRes)
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{
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rdfc.Init(database, personalToolbarRes);
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// Note: RDF Sequences are one-based, not zero-based
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// XXX figure out the REAL index to insert at;
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// for the moment, insert it as the first element (pos=1)
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var newIndex = 1;
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var currentIndex = rdfc.IndexOf(objectRes);
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if (currentIndex > 0)
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{
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dump("Element '" + id + "' was at position # " + currentIndex + "\n");
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rdfc.RemoveElement(objectRes, true);
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dump("Element '" + id + "' removed from position # " + currentIndex + "\n");
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}
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rdfc.InsertElementAt(objectRes, newIndex, true);
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dump("Element '" + id + "' re-inserted at new position # " + newIndex + ".\n");
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}
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}
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} // foreach drag item
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} // if transferable
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} // if dragsession
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} // if dragservice
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if ( dropAccepted ) // don't propagate the event if we did the drop
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event.preventBubble();
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} // DropPersonalToolbar
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function DragOverPersonalToolbar ( event )
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{
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if ( !gDragDropEnabled )
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return;
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var validFlavor = false;
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var dragSession = null;
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var dragService = Components.classes["component://netscape/widget/dragservice"].getService();
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if ( dragService ) dragService = dragService.QueryInterface(Components.interfaces.nsIDragService);
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if ( dragService ) {
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dragSession = dragService.getCurrentSession();
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if ( dragSession ) {
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if ( dragSession.isDataFlavorSupported("moz/toolbaritem") )
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validFlavor = true;
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else if ( dragSession.isDataFlavorSupported("text/plain") )
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validFlavor = true;
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//XXX other flavors here...
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// touch the attribute to trigger the repaint with the drop feedback.
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if ( validFlavor ) {
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//XXX this is really slow and likes to refresh N times per second.
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var toolbar = document.getElementById("PersonalToolbar");
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toolbar.setAttribute ( "dd-triggerrepaint", 0 );
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dragSession.canDrop = true;
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event.preventBubble();
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}
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}
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}
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} // DragOverPersonalToolbar
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//
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// DragOverContentArea
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//
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// An example of how to handle drag-over. Looks for any of a handful of flavors and
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// if it finds them it marks the dragSession that the drop is allowed.
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//
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function DragOverContentArea ( event )
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{
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if ( !gDragDropEnabled )
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return;
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var validFlavor = false;
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var dragSession = null;
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var dragService = Components.classes["component://netscape/widget/dragservice"].getService();
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if ( dragService ) dragService = dragService.QueryInterface(Components.interfaces.nsIDragService);
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if ( dragService ) {
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dragSession = dragService.getCurrentSession();
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if ( dragSession ) {
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if ( dragSession.isDataFlavorSupported("moz/toolbaritem") )
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validFlavor = true;
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else if ( dragSession.isDataFlavorSupported("text/plain") )
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validFlavor = true;
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else if ( dragSession.isDataFlavorSupported("text/unicode") )
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validFlavor = true;
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//XXX other flavors here...such as files from the desktop?
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if ( validFlavor ) {
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// XXX do some drag feedback here, set a style maybe???
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dragSession.canDrop = true;
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event.preventBubble();
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}
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}
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}
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} // DragOverContentArea
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//
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// DropOnContentArea
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//
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// An example of how to handle a drop. Basically looks for the text flavor, extracts it,
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// shoves it into the url bar, and loads the given URL. No checking is done to make sure
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// this is a url ;)
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//
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function DropOnContentArea ( event )
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{
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if ( !gDragDropEnabled )
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return;
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var dropAccepted = false;
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var dragService = Components.classes["component://netscape/widget/dragservice"].getService();
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if ( dragService ) dragService = dragService.QueryInterface(Components.interfaces.nsIDragService);
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if ( dragService ) {
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var dragSession = dragService.getCurrentSession();
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if ( dragSession ) {
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var trans = Components.classes["component://netscape/widget/transferable"].createInstance();
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if ( trans ) trans = trans.QueryInterface(Components.interfaces.nsITransferable);
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if ( trans ) {
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trans.addDataFlavor("text/unicode");
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trans.addDataFlavor("text/plain");
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for ( var i = 0; i < dragSession.numDropItems; ++i ) {
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var id = "";
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dragSession.getData ( trans, i );
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var dataObj = new Object();
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var bestFlavor = new Object();
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var len = new Object();
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trans.getAnyTransferData ( bestFlavor, dataObj, len );
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if ( bestFlavor.value == "text/unicode" ) {
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if ( dataObj ) dataObj = dataObj.value.QueryInterface(Components.interfaces.nsISupportsWString);
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if ( dataObj ) {
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// pull the URL out of the data object, two byte data
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var id = dataObj.data.substring(0, len.value / 2);
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dump("ID: '" + id + "'\n");
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}
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}
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else {
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if ( dataObj ) dataObj = dataObj.value.QueryInterface(Components.interfaces.nsISupportsString);
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if ( dataObj ) {
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// pull the URL out of the data object
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var id = dataObj.data.substring(0, len.value);
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dump("ID: '" + id + "'\n");
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}
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}
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// stuff it into the url field and go, baby, go!
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var urlBar = document.getElementById ( "urlbar" );
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urlBar.value = id;
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BrowserLoadURL();
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event.preventBubble();
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} // foreach drag item
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}
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}
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}
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} // DropOnContentArea
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//
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// DragProxyIcon
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//
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// Called when the user is starting a drag from the proxy icon next to the URL bar. Basically
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// just gets the url from the url bar and places the data (as plain text) in the drag service.
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//
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// This is by no means the final implementation, just another example of what you can do with
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// JS. Much still left to do here.
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//
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function DragProxyIcon ( event )
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{
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if ( !gDragDropEnabled )
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return;
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var dragStarted = false;
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var dragService = Components.classes["component://netscape/widget/dragservice"].getService();
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if ( dragService ) dragService = dragService.QueryInterface(Components.interfaces.nsIDragService);
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if ( dragService ) {
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var trans = Components.classes["component://netscape/widget/transferable"].createInstance();
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if ( trans ) trans = trans.QueryInterface(Components.interfaces.nsITransferable);
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if ( trans ) {
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trans.addDataFlavor("text/plain");
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var genTextData = Components.classes["component://netscape/supports-string"].createInstance();
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if ( genTextData ) genTextData = genTextData.QueryInterface(Components.interfaces.nsISupportsString);
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if ( genTextData ) {
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// pull the url out of the url bar
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var urlBar = document.getElementById ( "urlbar" );
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if ( !urlBar )
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return;
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var id = urlBar.value
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genTextData.data = id;
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dump("ID: " + id + "\n");
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trans.setTransferData ( "text/plain", genTextData, id.length ); // single byte data
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var transArray = Components.classes["component://netscape/supports-array"].createInstance();
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if ( transArray ) transArray = transArray.QueryInterface(Components.interfaces.nsISupportsArray);
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if ( transArray ) {
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// put it into the transferable as an |nsISupports|
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var genTrans = trans.QueryInterface(Components.interfaces.nsISupports);
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transArray.AppendElement(genTrans);
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var nsIDragService = Components.interfaces.nsIDragService;
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dragService.invokeDragSession ( transArray, null, nsIDragService.DRAGDROP_ACTION_COPY +
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nsIDragService.DRAGDROP_ACTION_MOVE );
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dragStarted = true;
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}
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} // if data object
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} // if transferable
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} // if drag service
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if ( dragStarted ) // don't propagate the event if a drag has begun
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event.preventBubble();
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} // DragProxyIcon
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function UpdateHistory(event)
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{
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Загрузка…
Ссылка в новой задаче