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  • NSCollectionView subclass doesn't call drawRect during drag session despite setNeedsDisplay

    - by Alain Vitry
    Greetings, I am puzzled as to how and when drawRect is supposed to be called in a NSCollectionView subclass. I implement drag and drop operation in order to move NSCollectionViewItems within the collection, and would like to draw a visual indication of where the drop would end. The subclass does not call drawRect during the drag session. (It does during scroll) Is this the intended operation ? Any hint on how to implement this behavior properly are welcome. A full xcode project of the following code is available at: http://babouk.ovh.org/dload/MyCollectionView.zip Best regards Code sample: @interface CollectionViewAppDelegate : NSObject <NSApplicationDelegate> { NSWindow *window; NSMutableArray *collectionContent; } /* properties declaration */ /* KVC compliance declarations */ @end @interface MyCollectionView : NSCollectionView @end @interface ItemModel { NSString *name; } @property (copy) NSString *name; @end @implementation MyCollectionView - (void)drawRect:(NSRect)rect { NSLog(@"DrawRect"); } - (void)mouseDragged:(NSEvent *)aEvent { NSPoint localPoint = [self convertPoint:[aEvent locationInWindow] fromView:nil]; [self dragImage:[NSImage imageNamed:@"Move.png"] at:localPoint offset:NSZeroSize event:aEvent pasteboard:nil source:self slideBack:NO]; } - (BOOL)prepareForDragOperation:(id < NSDraggingInfo >)sender { return YES; } - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender { return NSDragOperationEvery; } - (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender { [self setNeedsDisplay:YES]; return NSDragOperationEvery; } - (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)isLocal { return NSDragOperationEvery; } - (void)mouseDown:(NSEvent *)theEvent { } @end @implementation CollectionViewAppDelegate @synthesize window, collectionContent, collectionView; - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { NSMutableArray *data = [[NSMutableArray alloc] init]; /* Fill in data */ [self setCollectionContent:data]; [data release]; } /* dealloc */ /* KVC implementation */ @end @implementation ItemModel @synthesize name; /* dealloc */ @end

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  • Drag-n-Drop on contentEditable elements

    - by Raybiez
    There are numerous WYSIWYG editors available on the internet, but I'm yet to find one that implements some form of drag-n-drop implementation. It is easy to create one's own editor, but I want to the user to be able to drag elements (ie. tokens) from outside the editable area and have them drop it at a location of their choice inside the editable area. It is easy to inject html at a specific location of an editable element, but how do one determine where the caret should be when the user is dragging a DIV over some element in the editable area. To better illustrate what I'm trying to explain, see the following scenario. The editable area (either an IFRAME in edit mode or a DIV with its contentEditable attribute set to true) already contains the following text: "Dear , please take note of ...." The user now drags an element representing some token from a list of elements, over the editable area, moving the cursor over the text until the caret appear just before the comma (,) in the text as shown above. When the user releases the mouse button at that location, HTML will be injected which could result in something like this: "Dear {UserFirstName}, please take note of ...". I do not know if anyone has ever done anything similar to this, or at least know of how one would go about doing this using JavaScript. Any help will be greatly appreciated.

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  • Cocoa NSOutlineView and Drag-and-Drop

    - by bobthecoder
    I recently started another thread without an account, so I'm reposting the question here with an account so I can edit current links to the program so other users can follow this. I have also updated the code below. Here is my original question: I read the other post here on Outlineviews and DND, but I can't get my program to work. At the bottom of this post is a link to a zip of my project. Its very basic with only an outlineview and button. I want it to receive text files being dropped on it, but something is wrong with my code or connections. I tried following Apple's example code of their NSOutline Drag and Drop, but I'm missing something. 1 difference is my program is a document based program and their example isn't. I set the File's Owner to receive delegate actions, since that's where my code to handle drag and drop is, as well as a button action. Its probably a simple mistake, so could someone please look at it and tell me what I'm doing wrong? Here is a link to the file: http://dl.dropbox.com/u/7195844/OutlineDragDrop1.zip

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  • drag and drop with jquery and php

    - by robertdd
    hy, i have a php array with the name of some images! i list all the images use this: $files = $_SESSION['files']; $imgid = $_POST['id']; if ($files){ foreach($files as $image ): print '<li id="liupimages">'."\n"; print '<a href="uploads/'.$image.'"><img id="'.$imgid.'" alt="'.$image.'" src="uploads/'.$image.'"></a>'."\n"; print "</li>\n"; endforeach; print <<<JS <script> $(".thumbs li a").click(function(){ var largePath = $(this).attr("href"); $('.thumbs li').removeClass('thumbac'); $(this).parent().addClass('thumbac'); $("#largeImg").hide() .attr({ src: largePath }) .load(function() { $(this).show(); }); return false; }); </script> JS; } i use jquery-ui to drag and drop images using this function: $(function() { $("#upimagesQueue").sortable({ opacity: 0.6, cursor: 'move', update: function() { //?? } }); }); after i drag and drop one image i want to be able to update the php array to! how to do this?

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  • jquery ui drag and drop showing feedback

    - by sea_1987
    Hi there, I have some drag and drop functionality on my website, I am wanting to hightlight the area that is droppable with a chage in border color when the draggable element is clicked/starting to be dragged. If the click/or drag stops I want the border of the droppable element to change back to its origianl state, I currently have this code, but it does not work very well. $(".drag_check").draggable({helper:"clone", opacity:"0.5"}); $(".drag_check").mousedown(function() { $('.searchPage').css("border", "solid 3px #00FF66").fadeIn(1000); }); $(".drag_check").mouseup(function(){ $('.searchPage').css("border", "solid 3px #E2E5F1").fadeIn(1000); }) $(".searchPage").droppable({ accept:".drag_check", hoverClass: "dropHover", drop: function(ev, ui) { var droppedItem = ui.draggable.children(); cv_file = ui.draggable.map(function() {//map the names and values of each of the selected checkboxes into array return ui.draggable.children().attr('name')+"="+ui.draggable.children().attr('value'); }).get(); var link = ui.draggable.children().attr('name').substr(ui.draggable.children().attr('name').indexOf("[")+1, ui.draggable.children().attr('name').lastIndexOf("]")-8) $.ajax({ type:"POST", url:"/search", data:ui.draggable.children().attr('name')+"="+ui.draggable.children().val()+"&save=Save CVs", success:function(){ window.alert(cv_file+"&save=Save CVs"); $('.shortList').append('<li><span class="inp_bg"><input type="checkbox" name="remove_cv'+link+'" value="Y" /></span><a href="/cv/'+link+'/">'+link+'</a></li>'); $('.searchPage').css("border", "solid 3px #E2E5F1").fadeIn(1000); }, error:function() { alert("Somthing has gone wrong"); } }); } });

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  • Cocoa Drag and Drop, reading back the data

    - by kodai
    Ok, I have a NSOutlineView set up, and I want it to capture PDF's if a pdf is dragged into the NSOutlineView. My first question, I have the following code: [outlineView registerForDraggedTypes:[NSArray arrayWithObjects:NSStringPboardType, NSFilenamesPboardType, nil]]; In all the apple Docs and examples I've seen I've also seen something like MySupportedType being an object registered for dragging. What does this mean? Do I change the code to be: [outlineView registerForDraggedTypes:[NSArray arrayWithObjects:@"pdf", NSStringPboardType, NSFilenamesPboardType, nil]]; Currently I have it set up to recognize drag and drop, and I can even make it spit out the URL of the dragged file once the drag is accepted, however, this leads me to my second question. I want to keep a copy of those PDF's app side. I suppose, and correct me if I'm wrong, that the best way to do this is to grab the data off the clipboard, save it in some persistant store, and that's that. (as apposed to using some sort of copy command and literally copying the file to the app director.) That being said, I'm not sure how to do that. I've the code: - (BOOL)outlineView:(NSOutlineView *)ov acceptDrop:(id <NSDraggingInfo>)info item:(id)item childIndex:(NSInteger)childIndex { NSPasteboard *pboard = [info draggingPasteboard]; NSURL *fileURL; if ( [[pboard types] containsObject:NSURLPboardType] ) { fileURL = [NSURL URLFromPasteboard:pboard]; // Perform operation using the file’s URL } NSData *data = [pboard dataForType:@"NSPasteboardTypePDF"]; But this never actually gets any data. Like I said before, it does get the URL, just not the data. Does anyone have any advise on how to get this going? Thanks so much!

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  • iPhone: detect "touch-and-drag" gesture from UIBarButtonItem?

    - by Greg Maletic
    I have an "add" button that's represented by a UIBarButtonItem. Hitting the "add" button adds an object into a list that represents a moment in time. By default, that time is "now"...but I'd like to be able to use dragging behavior to let the user specify earlier times for the object. Here's the behavior I want to implement: If the user touches on the UIBarButtonItem and lets go quickly, an object is added to the list that represents "now." If the user touches on the UIBarButtonItem and drags, a little UI pops up that shows the time that the distance of their drag represents. The further they drag, the further back in time their touch will represent. When they let go, the object representing an earlier time will get added to the list. (Though the description of the behavior is complicated, I'm convinced this will be pretty intuitive for users of the app.) I haven't implemented code for anything but the most simple touches in the past, and I'm at a loss as to the best way to try this. Does anyone have any suggestions, or could point me towards some sample code that implements something like this? Thanks very much.

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  • WPF Drag-to-scroll doesn't work correctly.

    - by Garegin
    Hi all, I am tying to realize a drag-to-scroll functionality in my application and have problems on my way. Can anybody help me? I have a ScrollViewer and inside it an ItemsControl and within ItemsTemplate I have a UserControl. I want to drag that UserControl within ItemsControl. I want the ScrollViewer to scroll down, when I am dragging to the boundaries of the ItemsControl. protected override void OnPreviewMouseMove(System.Windows.Input.MouseEventArgs e) { if (this.IsMouseCaptured) { // Get the new mouse position. Point mouseDragCurrentPoint = e.GetPosition(this); if (Math.Abs(mouseDragCurrentPoint.Y - this.ActualHeight) <= 50) { this._scrollStartOffset.Y += 5; _containingScrollViewer.ScrollToVerticalOffset(this._scrollStartOffset.Y); } if (mouseDragCurrentPoint.Y <= 50) { this._scrollStartOffset.Y -= 5; _containingScrollViewer.ScrollToVerticalOffset(this._scrollStartOffset.Y); } } base.OnPreviewMouseMove(e); } When i start dragging by calling DragDrop.DoDragDrop() scrolling don't happens. But when i disable dragging, the ScrollViewer scrolls down dependong on mouse position. Maybe there's something that i don't take into accont about dragging and Capturing the mouse? Thanks for attention. Garegin

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  • Dojo DnD: how to access newly copied node on onDndDrop event?

    - by toshinao
    Hi. I am working on code like the following. 01: var c1 = new dojo.dnd.Source('container1', {copyOnly:true}); // container1 is a div 02: var c2 = new dojo.dnd.Source('container2'); // container2 is a div 03: var list = []; 04: for (var i = 0; i < 3; i++) { list.push( dojo.create('div') ); } 05: c1.insertNodes(false, list); 06: 07: function checkDndCopy(nodes, target){ 08: dojo.forEach(nodes, function(node){ alert(node.id); } ); 09: } 10: dojo.subscribe("/dnd/drop", function(){ 11: var mgr = dojo.dnd.manager(); 12: checkDndCopy(mgr.nodes, mgr.target); 13: }); The nodes inserted to the c1 at line 05 have id of "dojoUnique1, donoUnique2, dojoUnique3". On a event of drag and drop a node from c1 to c2, a onDndDrop event is fired and the subscribe method defined in line10-13 is invoked. I expected that newly copied node appears in the nodes (for example) at line 08. But this is not true. When dojoUnique1 is target of drag and drop, nodes at line 08 contains only dojoUnique1. I want to modify some attributes of newly copied nodes on the event of onDndDrop. Please let me know how such a thing is realized.

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  • What's the best way to manage list item sort order with Drag & Drop UI?

    - by Reddy S R
    I have a list of Students that I should display to user on a web page in tabular format. The items are stored in DB along with SortOrder information. On the web page, user can rearrange the list order by dragging and dropping the items to their desired sort order, similar to this post. Below is a screenshot of my test page. In the above example, each row has sort order info attached to it. When I drop John Doe (Student Id 10) above the Student Id 1 row, the list order should now be: 2, 10, 1, 8, 11. What's the optimistic (less resource hungry) way to store and update Sort Order information? My only idea for now is, for every change in the list's sort order, every object's SortOrder value should be updated, which in my opinion is very resource hungry. Just FYI: I might have at most 25 rows in my table.

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  • Can't Drag & Drop text to unity launcher (e.g. url's, highlighted text)

    - by patsee
    I'm trying to create a unity launcher icon (.dekstop file) on which you can drop any (selected/highlighted) text from a web browser, google chrome in my case. I know you can use the "MimeType=" key in a .desktop file, but I can't find the right mime type for my scenario. I've tried several text MimeTypes and "text/*", but none of them would work. Does anyone know which MimeType I have to use in order for my launcher icon to accept text when hovering over it?

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  • Drag and drop in as3 on specific path (ex bezier curve)

    - by abinop
    I need to implement a drag and drop functionality, where I can define and constraint the route of the draggable object. Like in http://www.kirupa.com/forum/showthread.php?t=330302 , only that i have the paths designed and not calculated by a math function. So, in fact, as mouse moves I need to tell the object to follow the custom path/movieclip.

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  • WinForms window drag event

    - by Steve Syfuhs
    Is there an event in WinForms that get's fired when a window is dragged? Or is there a better way of doing what I want: to drop the window opacity to 80% when the window is being dragged around? Unfortunately this is stupidly tricky to search for because everyone is looking for drag and drop from the shell, or some other object.

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  • WPF: Drag/Drop to re-order grid and jiggle

    - by Echilon
    I need to implement a grid in WPF which has squares that can be dragged/dropped to be re-ordered, but I'm not sure the best way to do it. I was thinking using an ObservableCollection of squares and a UniFormGrid but although I have experience with both WPF and drag/drop, ideally I'd like to do a kind of 'jiggle' when before the user releases the mouse. Any suggestions on a good starting point?

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  • Drag and drop onto Python script in Windows Explorer

    - by grok
    I would like to drag and drop my data file onto a Python script and have it process the file and generate output. The Python script accepts the name of the data file as a command-line parameter, but Windows Explorer doesn't allow the script to be a drop target. Is there some kind of configuration that needs to be done somewhere for this work?

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  • Drag and Drop file upload in Silverlight 4?

    - by Parvenu74
    I'm working on re-writing a WinForms application into Silverlight. One use case in the WinForms app allows users to drag TIFF images (of faxes) from Outlook directly onto an "attach an image or fax to this case" control in the WinForms app. Is there a Silverlight 4 control which allows for the same functionality? It's important to realize that saving the file to the local filesystem and then selecting and uploading the file with a standard upload control will not meet the business requirements as outlined in the project.

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  • Testing drag-and-drop with Watir

    - by Marcel J.
    I'm evaluating Watir right now. While Selenium has a dragAndDropToObject command (which seems to be broken) Watir seems not to have such a command. I couldn't find a script/tutorial with an example of how to test DnD with Watir. Did anybody try/succeed in testing drag-and-drop with Watir? Btw.: I am using jQuery for the DnD implementation.

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  • ActiveX Control Drag and Drop in C sharp

    - by Philip
    I'm making Windows Form App in C sharp and best control for what I need is ActiveX Control (Calendar). The problem is that I need drag and drop but Control that I use does not have events for it (only positive thing is that it has property "AllowDrop"). (Control is Xtreme Calendar - Codejock)

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  • drag and drop working funny when using variable draggables and droppables

    - by Lina
    Hi, i have some containers that contain some divs like: <div id="container1"> <div id="task1" onMouseOver="DragDrop("+1+");">&nbsp;</div> <div id="task2" onMouseOver="DragDrop("+2+");">&nbsp;</div> <div id="task3" onMouseOver="DragDrop("+3+");">&nbsp;</div> <div id="task4" onMouseOver="DragDrop("+4+");">&nbsp;</div> </div> <div id="container2"> <div id="task5" onMouseOver="DragDrop("+5+");">&nbsp;</div> <div id="task6" onMouseOver="DragDrop("+6+");">&nbsp;</div> </div> <div id="container3"> <div id="task7" onMouseOver="DragDrop("+7+");">&nbsp;</div> <div id="task8" onMouseOver="DragDrop("+8+");">&nbsp;</div> <div id="task9" onMouseOver="DragDrop("+9+");">&nbsp;</div> <div id="task10" onMouseOver="DragDrop("+10+");">&nbsp;</div> </div> i'm trying to drag tasks and drop them in one of the container divs, then reposition the dropped task so that it doesn't affect the other divs nor fall outside one of them and to do that i'm using the event onMouseOver to call the following function: function DragDrop(id) { $("#task" + id).draggable({ revert: 'invalid' }); for (var i = 0; i < nameList.length; i++) { $("#" + nameList[i]).droppable({ drop: function (ev, ui) { var pos = $("#task" + id).position(); if (pos.left <= 0) { $("#task" + id).css("left", "5px"); } else { var day = parseInt(parseInt(pos.left) / 42); var leftPos = (day * 42) + 5; $("#task" + id).css("left", "" + leftPos + "px"); } } }); } } where: nameList = [container1, container2, container3]; the drag is working fine, but the drop is not really, it's just a mess! any help please?? when i hardcode the id and the container, then it works beautifully, but as soon as i use id in drop then it begins to work funny! any suggestions??? thanks a million in advance Lina

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  • C# Drag and Drop - e.Data.GetData using a base class

    - by Dustin Brooks
    C# Winforms 3.5 I have a list of user controls all derived from one base class. These controls can be added to various panels and I'm trying to implement the drag-drop functionality, the problem I'm running in to is on the DragDrop event. The DragEventArgs: e.Data.GetData(typeof(baseClass)) doesn't work. It wants: e.Data.GetData(typeof(derivedClass1)) e.Data.GetData(typeof(derivedClass2)) etc... Is there a way I can get around this, or a better way to architect it?

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