From 5397ab6b80eca2884491d113ca4fd19000adf5e7 Mon Sep 17 00:00:00 2001
From: Robert Sesek <rsesek@bluestatic.org>
Date: Wed, 5 Jan 2011 22:16:34 -0500
Subject: [PATCH] Add drag and drop support on BSSourceView and enable it in
 the BreakpointController.

---
 CHANGES                       |  3 ++-
 Source/BSSourceView.h         |  3 +++
 Source/BSSourceView.m         | 33 +++++++++++++++++++++++++++++++++
 Source/BreakpointController.m |  8 ++++++++
 4 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/CHANGES b/CHANGES
index e89fe85..622e35e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4,8 +4,9 @@ MacGDBp                                                               CHANGE LOG
 1.4 Beta 2
 #####################
 - Fix: After clicking on a stack frame with a virtual file, the debugger front end would hang
-- Fix: Crash on clicking "Install & Relaunch" from Sparkle.
+- Fix: Crash on clicking "Install & Relaunch" from Sparkle
 - New: #210  Add a "Stop" button to detach the debugger from the current session
+- New: #209  Drag a file onto the source view in the Breakpoints window to load the contents
 
 
 1.4 Beta 1
diff --git a/Source/BSSourceView.h b/Source/BSSourceView.h
index b81619d..f4332db 100644
--- a/Source/BSSourceView.h
+++ b/Source/BSSourceView.h
@@ -45,4 +45,7 @@
 
 @interface NSObject (BSSourceViewDelegate)
 - (void)gutterClickedAtLine:(int)line forFile:(NSString*)file;
+
+// Whether to accept a file drop.
+- (BOOL)sourceView:(BSSourceView*)sv acceptsDropOfFile:(NSString*)fileName;
 @end
diff --git a/Source/BSSourceView.m b/Source/BSSourceView.m
index 2449e89..55481eb 100644
--- a/Source/BSSourceView.m
+++ b/Source/BSSourceView.m
@@ -216,6 +216,9 @@
   [[textView textContainer] setHeightTracksTextView:NO];
   [textView setAutoresizingMask:NSViewNotSizable];
   [scrollView setDocumentView:textView];
+
+  NSArray* types = [NSArray arrayWithObject:NSFilenamesPboardType];
+  [self registerForDraggedTypes:types];
 }
 
 /**
@@ -235,4 +238,34 @@
   [textView setString:contents];
 }
 
+/**
+ * Validates an initiated drag operation.
+ */
+- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender
+{
+  if ([delegate respondsToSelector:@selector(sourceView:acceptsDropOfFile:)])
+    return NSDragOperationCopy;
+  return NSDragOperationNone;
+}
+
+/**
+ * Performs a dragging operation of files to set the contents of the file.
+ */
+- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender
+{
+  NSPasteboard* pboard = [sender draggingPasteboard];
+  if ([[pboard types] containsObject:NSFilenamesPboardType]) {
+    NSArray* files = [pboard propertyListForType:NSFilenamesPboardType];
+    if ([files count]) {
+      NSString* filename = [files objectAtIndex:0];
+      if ([delegate respondsToSelector:@selector(sourceView:acceptsDropOfFile:)] &&
+          [delegate sourceView:self acceptsDropOfFile:filename]) {
+        [self setFile:filename];
+        return YES;
+      }
+    }
+  }
+  return NO;
+}
+
 @end
diff --git a/Source/BreakpointController.m b/Source/BreakpointController.m
index 8790860..f50a63c 100644
--- a/Source/BreakpointController.m
+++ b/Source/BreakpointController.m
@@ -111,4 +111,12 @@
   [[sourceView numberView] setNeedsDisplay:YES];
 }
 
+/**
+ * Accepts a file dragged to set the contents of the display.
+ */
+- (BOOL)sourceView:(BSSourceView*)sv acceptsDropOfFile:(NSString*)filename
+{
+  return YES;
+}
+
 @end
-- 
2.22.5