Merge lp:~kjtehprogrammer/scratch/drag-n-drop into lp:~elementary-apps/scratch/scratch

[KJ Lawrence]

Drag n Drop enabled for welcome screen and SourceView

Adds the capability to accept drag-and-drops on the welcome screen and on individual documents. Dragging a new document in to sourceview will open it up in another tab automatically.

Should handle multiple files without any issues - I dragged a whole group in through files and it loaded them all in. My only problem is that, for whatever reason, the sourceview drag-and-drop happens twice. It doesn't affect anything because Scratch checks for duplicate files, but its still a pain (and a brief waste of memory).

[Mario Guerriero (mefrio-g)]

review: Approve

=== modified file 'src/Widgets/DocumentView.vala'
--- src/Widgets/DocumentView.vala	2013-11-23 15:01:37 +0000
+++ src/Widgets/DocumentView.vala	2014-04-10 16:53:42 +0000
@@ -164,6 +164,12 @@
                 files += doc.file.get_uri ();
                 settings.schema.set_strv ("opened-files", files);
             }
+            
+            // Handle Drag-and-drop functionality on source-view
+            Gtk.TargetEntry uris = {"text/uri-list", 0, 0};
+            Gtk.TargetEntry text = {"text/plain", 0, 0};
+            Gtk.drag_dest_set (doc.source_view, Gtk.DestDefaults.ALL, {uris, text}, Gdk.DragAction.COPY);
+            doc.source_view.drag_data_received.connect (this.drag_received);
         }
         
         private void remove_document (Document doc) {
@@ -178,6 +184,22 @@
                 }
                 settings.schema.set_strv ("opened-files", opened);
             }
+            
+            doc.source_view.drag_data_received.disconnect (this.drag_received);
+        }
+        
+        private void drag_received(Gdk.DragContext ctx, int x, int y, Gtk.SelectionData sel,  uint info, uint time){
+            var uris = sel.get_uris ();
+            if (uris.length > 0){
+                for (var i = 0; i < uris.length; i++){
+                    string filename = uris[i];
+                    File file = File.new_for_uri(filename);
+                    Document doc = new Document(file);
+                    this.open_document(doc);
+                }
+                
+                Gtk.drag_finish (ctx, true, false, time);
+            }
         }
         
         public Document? get_current_document () {
@@ -198,4 +220,4 @@
         
     }
     
-}
+}
 \ No newline at end of file
 
=== modified file 'src/Widgets/SplitView.vala'
--- src/Widgets/SplitView.vala	2013-07-22 06:11:19 +0000
+++ src/Widgets/SplitView.vala	2014-04-10 16:53:42 +0000
@@ -55,6 +55,25 @@
                     main_actions.get_action ("Open").activate ();
             });
             
+            // Handle Drag-and-drop functionality on source-view
+            Gtk.TargetEntry target = {"text/uri-list", 0, 0};
+            Gtk.drag_dest_set (this.welcome_screen, Gtk.DestDefaults.ALL, {target}, Gdk.DragAction.COPY);
+            this.welcome_screen.drag_data_received.connect ((ctx, x, y, sel, info, time) => {
+                var uris = sel.get_uris ();
+                if (uris.length > 0){
+                    var view = this.current_view ?? this.add_view ();
+                
+                    for (var i = 0; i < uris.length; i++){
+                        string filename = uris[i];
+                        File file = File.new_for_uri(filename);
+                        Scratch.Services.Document doc = new Scratch.Services.Document(file);
+                        view.open_document(doc);
+                    }
+                    
+                    Gtk.drag_finish (ctx, true, false, time);
+                }
+            });
+            
             this.views = new GLib.List<Scratch.Widgets.DocumentView> ();
         }
         
@@ -162,4 +181,4 @@
             main_actions.get_action ("RemoveView").sensitive = (views.length () > 1);
         }
     }
-}
+}
 \ No newline at end of file