[Wsmanager-devel] [ForeignWindow moveToWorkspaceRepresentedBy:...]

[Naveen Michaud-A. <inf...@ya...>]

Hello,

I am trying to implement the ability to drag windows
between desktops using the pager. I have it working
correctly (by calling the above function in
DesktopPagerCell continueTracking:...) but the window
list of the new workspace is not updated until mouse
tracking ends, so visually the window only moves
within the pager cell corresponding to the workspace
it originated in. 

Since that probably doesn't make sense without
witnessing it, here is my modified DesktopPagerCell
continueTracking:

static BOOL movedtoNewWorkspace = NO;
static int newWorkspaceNumber = -1;
- (BOOL)continueTracking:(NSPoint)lastPoint
at:(NSPoint)currentPoint inView:(NSView*)controlView {
	if(!dragging) { return NO; }

	if(!NSPointInRect(currentPoint, lastCellFrame)) {
		if (!NSPointInRect(currentPoint, [controlView
bounds])) {
			// Don't move windows out of the screen but
			// keep tracking...
			return YES;
		}
		int row, column;
		BOOL inControlView = [controlView getRow: &row
column:&column forPoint: currentPoint];
		// I should really test inControlView
		id cell = [controlView cellAtRow: row column:
column];
		if (newWorkspaceNumber != [[cell representedObject]
workspaceNumber]) {
			[draggingWindow moveToWorkspaceRepresentedBy:
cell];
			movedtoNewWorkspace = YES;
			newWorkspaceNumber = [draggingWindow
workspaceNumber];
		}
		
		/* This just prints all the windows in the new
workspace for debugging
		NSArray *windowList = [[cell representedObject]
windowList];
		int i;		
        if(windowList && [windowList count]) {
            for(i=[windowList count]-1; i>=0; i--) {
                ForeignWindow *window =
(ForeignWindow*) [windowList objectAtIndex: i];
				NSLog(@"\t%@", [window title]);
			}
		}*/

		// Convert window to new coordinates
		currentPoint = [self cellPointToScreenPoint:
currentPoint cellFrame: [controlView
cellFrameAtRow:row column:column]];		
	} else {
		/* Current workspace */
		if (movedtoNewWorkspace) {
			/* The window was moved back into the current
workspace */
			movedtoNewWorkspace = NO;
			[draggingWindow moveToWorkspaceRepresentedBy:
self];
			newWorkspaceNumber = -1;
		}
		currentPoint = [self cellPointToScreenPoint:
currentPoint cellFrame: lastCellFrame];
	}
	
	NSPoint newPoint;
	newPoint.x = currentPoint.x + delta.x;
	newPoint.y = currentPoint.y + delta.y;
	
	[draggingWindow move: newPoint];
	[[self controlView] setNeedsDisplay: YES];
	
	return YES;
}

- (void)stopTracking:(NSPoint)lastPoint
at:(NSPoint)stopPoint inView:(NSView *)controlView
mouseIsUp:(BOOL)flag {
	dragging = NO;
	movedtoNewWorkspace = NO;
	newWorkspaceNumber = -1;
	
	[draggingWindow release];
}

When you run the code and drag a window from one
workspace to the next, visually the pager
representation of the window only moves around in the
originating cell, but when you release the mouse the
window is in the right workspace.

I could hack the drawRect function but I would rather
not. If you uncomment the code above that lists the
windows in the new workspace you'll see that even
though the window claims that it is in the new
workspace, the workspace doesn't see it. any ideas?

Naveen Michaud-Agrawal


	
		
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