XSelection protocol does not define any global clipboard as there is on
Windows. Instead each window has its own property for clipboard content
(like CLIPBOARD or PRIMARY) and there is a global notion of clipboard
ownership. Only one window can claim ownership of some clipboard type
at the moment.
FreeRDP uses CLIPBOARD for clipboard transfers (it's the one used by
applications when Ctrl+V is pressed). For regular desktop sessions the
session window itself is used for clipboard interactions via
xfc->drawable field. However, for remote app session there is no session
window. We cannot use the current remote app window as it may change or
be destroyed without closing the session. We also cannot use the root
window as it is already used for CF_RAW transfer protocol.
Therefore we create a simple dummy window to put into xfc->drawable for
this exact job: to act as a clipboard vessel on behalf of the entire
remote app session.
xf_create_window() usually creates the window as we immediately start in
RAIL mode when possible. xf_rail_enable_remoteapp_mode() is invoked only
when autologin failed or remote desktop had to show the session window
to the user for some reason.
1. Remove all uses of "localWindowOffsetCorr" variables, they added an extra layer of complexity and they are not actually needed to handle coordination of window position/size between
the local coordinate system and the remote one. This logic was causing issues in the case where the window was moved off the left side of the screen.
2. Update the xf_setWindowVisibilityRects function to offset the visibility rects as necessary when the window is hanging off the left side of the screen.
3. Stop sending mouse events when doing keyboard moves/sizes(as desired), and stop sending two mouse events for non-keyboard moves/sizes
4. Move location of new UTF8_STRING variable from previous commit
5. Refresh window and window shape for any window position/size updates, this helps keep the local and server windows in sync and works around some race conditions
Small cleanup of passing around decorations flag.
Limit PercentScreen to single monitor vs. entire desktop. IMO - this is better behavior in a multimonitor environment.
Handle fullscreen windows better:
1. Ensure that size hints are set to allow resizing before setting a window to fullscreen as some window managers do not behave properly.
2. Handle fullscreen toggles without destroying and recreating window.
3. Use NET_WM_STATE_FULLSCREEN Extended Window Manager Hint for fullscreen functionality
4. Use the NET_WM_FULLSCREEN_MONITORS Extended Window Manager Hint when appropriate
5. When a single monitor fullscreen is requested - use the current monitor(as determined from mouse location)
6. Handle cases where there is no local monitor at coordinate 0,0. The Windows server expect there to be a monitor at this location, so we maintain offset if necessary between our local primary monitor and the server side primary monitor located at 0,0.
Remove use of the visibleOffset, this completely breaks the display of all windows except for the main application window. Instead,
just maintain a local offset correction of the windowOffset.
Apply workaround to determining the workArea for remote app mode.
1. Linked Window Manager Maximize/Minimize and Restore operations to those from the Server Rail Window so that they are in sync
2. Enable things like "CTRL-ALT-DELETE" and "WindowsKey-L" to show the full desktop window again since the desktop is not actively monitored since
this was still trying to draw to the rail window without updating the size of the window to accomodate the full workspace area.
3. Changed local window coordinates to be based on the visibileOffsetX/Y- while moving server window based on WindowOffsetX/Y. I have seen various issues regarding this when trying to use a maximized window where this is a disconnect between local window coordinates and remote window coordinates. This change clears these things up.
4. Commented the XShapeCombineRectangles calls - this can cause issues where the entire window is not visible and it does not currently play well with the changes from #3. The gain here is greater than the loss.
5. Draw the initial workspace correctly when running across multiple monitors. The correct size was always used, but the window was only starting on the current monitor and thus could draw the window off of the viewable area.
Known Issues:
Although the changes for #2 worked well in the stable branch that I developed from - the desktop window shown once the rail windows are destroyed does not respond to input unless I minimize/restore the window. Once the window starts responding to input - you can hit cancel to close the desktop window and return to your rail windows again(or launch task manager, etc.). This is still a big step in the right direction as xfreerdp is now correctly acting when the rail server stops Actively Monitoring the desktop.
XShapeCombineRectangles needs to be revisited, most windows applications will give you a rectangular window anyways.
Complete implementation for initiating RAIL local move support, however, this is still disabled until a method is found to tell when local moves complete on the X server.
