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xwayland: Create the drag-and-drop window in weston_wm_dnd_init

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Just to keep it hidden so far... A lot of the plumbing necessary to
handle x11->wayland drag and drop is missing, and the current
partial handling gets in the middle for X11 drag-and-drop itself
to work.

The approach is well directed, but needs some further work, till
then, just keep our fake drag-and-drop target hidden. This allows
drag-and-drop to work between X11 clients in Xwayland, and avoids
a crash with (currently unhandled) wl_resource-less data sources.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=94218

Signed-off-by: Carlos Garnacho <carlosg@gnome.org>
Reviewed-by: Daniel Stone <daniels@collabora.com>
This commit is contained in:
Carlos Garnacho 2016-02-22 19:42:23 +01:00 • committed by Daniel Stone
parent 24d306ccd8
commit 11f8fcbefe
1 changed files with 24 additions and 46 deletions
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70
xwayland/dnd.c
View file

@ -43,45 +43,6 @@
#include "cairo-util.h" #include "cairo-util.h"
#include "hash.h" #include "hash.h"
static void
weston_dnd_start(struct weston_wm *wm, xcb_window_t owner)
{
uint32_t values[1], version = 4;
wm->dnd_window = xcb_generate_id(wm->conn);
values[0] =
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
XCB_EVENT_MASK_PROPERTY_CHANGE;
xcb_create_window(wm->conn,
XCB_COPY_FROM_PARENT,
wm->dnd_window,
wm->screen->root,
0, 0,
8192, 8192,
0,
XCB_WINDOW_CLASS_INPUT_ONLY,
wm->screen->root_visual,
XCB_CW_EVENT_MASK, values);
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
wm->dnd_window,
wm->atom.xdnd_aware,
XCB_ATOM_ATOM,
32, /* format */
1, &version);
xcb_map_window(wm->conn, wm->dnd_window);
wm->dnd_owner = owner;
}
static void
weston_dnd_stop(struct weston_wm *wm)
{
xcb_destroy_window(wm->conn, wm->dnd_window);
wm->dnd_window = XCB_WINDOW_NONE;
}
struct dnd_data_source { struct dnd_data_source {
struct weston_data_source base; struct weston_data_source base;
struct weston_wm *wm; struct weston_wm *wm;
@ -234,12 +195,6 @@ weston_wm_handle_dnd_event(struct weston_wm *wm,
weston_log("XdndSelection owner: %d!\n", weston_log("XdndSelection owner: %d!\n",
xfixes_selection_notify->owner); xfixes_selection_notify->owner);
if (xfixes_selection_notify->owner != XCB_WINDOW_NONE)
weston_dnd_start(wm, xfixes_selection_notify->owner);
else
weston_dnd_stop(wm);
return 1; return 1;
} }
@ -267,7 +222,7 @@ weston_wm_handle_dnd_event(struct weston_wm *wm,
void void
weston_wm_dnd_init(struct weston_wm *wm) weston_wm_dnd_init(struct weston_wm *wm)
{ {
uint32_t mask; uint32_t values[1], version = 4, mask;
mask = mask =
XCB_XFIXES_SELECTION_EVENT_MASK_SET_SELECTION_OWNER | XCB_XFIXES_SELECTION_EVENT_MASK_SET_SELECTION_OWNER |
@ -275,4 +230,27 @@ weston_wm_dnd_init(struct weston_wm *wm)
XCB_XFIXES_SELECTION_EVENT_MASK_SELECTION_CLIENT_CLOSE; XCB_XFIXES_SELECTION_EVENT_MASK_SELECTION_CLIENT_CLOSE;
xcb_xfixes_select_selection_input(wm->conn, wm->selection_window, xcb_xfixes_select_selection_input(wm->conn, wm->selection_window,
wm->atom.xdnd_selection, mask); wm->atom.xdnd_selection, mask);
wm->dnd_window = xcb_generate_id(wm->conn);
values[0] =
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
XCB_EVENT_MASK_PROPERTY_CHANGE;
xcb_create_window(wm->conn,
XCB_COPY_FROM_PARENT,
wm->dnd_window,
wm->screen->root,
0, 0,
8192, 8192,
0,
XCB_WINDOW_CLASS_INPUT_ONLY,
wm->screen->root_visual,
XCB_CW_EVENT_MASK, values);
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
wm->dnd_window,
wm->atom.xdnd_aware,
XCB_ATOM_ATOM,
32, /* format */
1, &version);
} }