* OF THIS SOFTWARE.
*/
+#include <assert.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <cairo.h>
#include <sys/epoll.h>
-#include <gdk-pixbuf/gdk-pixbuf.h>
#include <wayland-client.h>
+#include <wayland-cursor.h>
#include "window.h"
-#include "cairo-util.h"
+#include "../shared/cairo-util.h"
+
+struct dnd_drag;
struct dnd {
struct window *window;
+ struct widget *widget;
struct display *display;
uint32_t key;
struct item *items[16];
+ int self_only;
+ struct dnd_drag *current_drag;
};
struct dnd_drag {
uint32_t time;
struct item *item;
int x_offset, y_offset;
+ int width, height;
const char *mime_type;
-};
-struct dnd_offer {
- int refcount;
- struct dnd *dnd;
- struct wl_array types;
- struct task io_task;
- const char *drag_type;
- uint32_t tag;
- int x, y;
- int fd;
+ struct wl_surface *drag_surface;
+ struct wl_data_source *data_source;
};
struct item {
rect.width = item_width;
rect.height = item_height;
- item->surface = display_create_surface(display, NULL, &rect, 0);
+ item->surface =
+ display_create_surface(display, NULL, &rect, SURFACE_SHM);
item->x = x;
item->y = y;
}
static void
-dnd_draw(struct dnd *dnd)
+dnd_redraw_handler(struct widget *widget, void *data)
{
+ struct dnd *dnd = data;
struct rectangle allocation;
cairo_t *cr;
cairo_surface_t *surface;
- int i;
-
- window_draw(dnd->window);
+ unsigned int i;
surface = window_get_surface(dnd->window);
cr = cairo_create(surface);
- window_get_child_allocation(dnd->window, &allocation);
+ widget_get_allocation(dnd->widget, &allocation);
cairo_rectangle(cr, allocation.x, allocation.y,
allocation.width, allocation.height);
- cairo_clip(cr);
- cairo_push_group(cr);
- cairo_translate(cr, allocation.x, allocation.y);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0.8);
- cairo_paint(cr);
+ cairo_fill(cr);
+ cairo_rectangle(cr, allocation.x, allocation.y,
+ allocation.width, allocation.height);
+ cairo_clip(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
for (i = 0; i < ARRAY_LENGTH(dnd->items); i++) {
if (!dnd->items[i])
continue;
cairo_set_source_surface(cr, dnd->items[i]->surface,
- dnd->items[i]->x, dnd->items[i]->y);
+ dnd->items[i]->x + allocation.x,
+ dnd->items[i]->y + allocation.y);
cairo_paint(cr);
}
- cairo_pop_group_to_source(cr);
- cairo_paint(cr);
cairo_destroy(cr);
cairo_surface_destroy(surface);
- window_flush(dnd->window);
-}
-
-static void
-redraw_handler(struct window *window, void *data)
-{
- struct dnd *dnd = data;
-
- dnd_draw(dnd);
}
static void
window_schedule_redraw(dnd->window);
}
-static void
-dnd_offer_destroy(struct dnd_offer *dnd_offer)
-{
- dnd_offer->refcount--;
- if (dnd_offer->refcount == 0) {
- wl_array_release(&dnd_offer->types);
- free(dnd_offer);
- }
-}
-
static int
dnd_add_item(struct dnd *dnd, struct item *item)
{
- int i;
+ unsigned int i;
for (i = 0; i < ARRAY_LENGTH(dnd->items); i++) {
if (dnd->items[i] == 0) {
{
struct item *item;
struct rectangle allocation;
- int i;
+ unsigned int i;
- window_get_child_allocation(dnd->window, &allocation);
+ widget_get_allocation(dnd->widget, &allocation);
x -= allocation.x;
y -= allocation.y;
}
static void
-drag_target(void *data,
- struct wl_drag *drag, const char *mime_type)
+data_source_target(void *data,
+ struct wl_data_source *source, const char *mime_type)
{
struct dnd_drag *dnd_drag = data;
struct dnd *dnd = dnd_drag->dnd;
- struct wl_input_device *device;
cairo_surface_t *surface;
struct wl_buffer *buffer;
- fprintf(stderr, "target %s\n", mime_type);
- device = input_get_input_device(dnd_drag->input);
dnd_drag->mime_type = mime_type;
if (mime_type)
surface = dnd_drag->opaque;
surface = dnd_drag->translucent;
buffer = display_get_buffer_for_surface(dnd->display, surface);
- wl_input_device_attach(device, dnd_drag->time, buffer,
- dnd_drag->hotspot_x, dnd_drag->hotspot_y);
+ wl_surface_attach(dnd_drag->drag_surface, buffer, 0, 0);
+ wl_surface_damage(dnd_drag->drag_surface, 0, 0,
+ dnd_drag->width, dnd_drag->height);
+ wl_surface_commit(dnd_drag->drag_surface);
}
static void
-drag_finish(void *data, struct wl_drag *drag, int fd)
+data_source_send(void *data, struct wl_data_source *source,
+ const char *mime_type, int32_t fd)
{
- struct dnd_drag *dnd_drag = data;
-
- if (!dnd_drag->mime_type) {
- dnd_add_item(dnd_drag->dnd, dnd_drag->item);
- window_schedule_redraw(dnd_drag->dnd->window);
- return;
- }
-
struct dnd_flower_message dnd_flower_message;
-
+ struct dnd_drag *dnd_drag = data;
dnd_flower_message.seed = dnd_drag->item->seed;
-
dnd_flower_message.x_offset = dnd_drag->x_offset;
dnd_flower_message.y_offset = dnd_drag->y_offset;
- fprintf(stderr, "got 'finish', fd %d, sending dnd_flower_message\n", fd);
+ if (write(fd, &dnd_flower_message, sizeof dnd_flower_message) < 0)
+ abort();
- write(fd, &dnd_flower_message, sizeof dnd_flower_message);
close(fd);
-
- /* The 'finish' event marks the end of the session on the drag
- * source side and we need to clean up the drag object created
- * and the local state. */
- wl_drag_destroy(drag);
-
- /* Destroy the item that has been dragged out */
- cairo_surface_destroy(dnd_drag->item->surface);
- free(dnd_drag->item);
-
- cairo_surface_destroy(dnd_drag->translucent);
- cairo_surface_destroy(dnd_drag->opaque);
- free(dnd_drag);
}
static void
-drag_reject(void *data, struct wl_drag *drag)
+data_source_cancelled(void *data, struct wl_data_source *source)
{
struct dnd_drag *dnd_drag = data;
- dnd_add_item(dnd_drag->dnd, dnd_drag->item);
- window_schedule_redraw(dnd_drag->dnd->window);
-}
-
-static const struct wl_drag_listener drag_listener = {
- drag_target,
- drag_finish,
- drag_reject
-};
+ /* The 'cancelled' event means that the source is no longer in
+ * use by the drag (or current selection). We need to clean
+ * up the drag object created and the local state. */
-static void
-drag_offer_offer(void *data,
- struct wl_drag_offer *offer, const char *type)
-{
- struct dnd_offer *dnd_offer = data;
- char **p;
-
- p = wl_array_add(&dnd_offer->types, sizeof *p);
- if (p)
- *p = strdup(type);
-}
-
-static void
-drag_offer_pointer_focus(void *data,
- struct wl_drag_offer *offer,
- uint32_t time, struct wl_surface *surface,
- int32_t x, int32_t y,
- int32_t surface_x, int32_t surface_y)
-{
- struct dnd_offer *dnd_offer = data;
- struct window *window;
- char **p, **end;
-
- /* The last event in a dnd session is pointer_focus with a
- * NULL surface, whether or not we get the drop event. We
- * need to clean up the dnd_offer proxy and whatever state we
- * allocated. */
- if (!surface) {
- fprintf(stderr, "pointer focus NULL, session over\n");
- wl_drag_offer_destroy(offer);
- dnd_offer_destroy(dnd_offer);
- return;
- }
-
- fprintf(stderr, "drag pointer focus %p\n", surface);
- fprintf(stderr, "offered types:\n");
- end = dnd_offer->types.data + dnd_offer->types.size;
- for (p = dnd_offer->types.data; p < end; p++)
- fprintf(stderr, "\%s\n", *p);
-
- window = wl_surface_get_user_data(surface);
- dnd_offer->dnd = window_get_user_data(window);
-
- if (!dnd_get_item(dnd_offer->dnd, surface_x, surface_y)) {
- wl_drag_offer_accept(offer, time, "application/x-wayland-dnd-flower");
- dnd_offer->drag_type = "application/x-wayland-dnd-flower";
- dnd_offer->x = surface_x;
- dnd_offer->y = surface_y;
- } else {
- wl_drag_offer_accept(offer, time, NULL);
- dnd_offer->drag_type = NULL;
- }
-}
-
-static void
-drag_offer_motion(void *data,
- struct wl_drag_offer *offer, uint32_t time,
- int32_t x, int32_t y, int32_t surface_x, int32_t surface_y)
-{
- struct dnd_offer *dnd_offer = data;
-
- if (!dnd_get_item(dnd_offer->dnd, surface_x, surface_y)) {
- fprintf(stderr, "drag offer motion %d, %d, accepting\n",
- surface_x, surface_y);
- wl_drag_offer_accept(offer, time, "application/x-wayland-dnd-flower");
- dnd_offer->drag_type = "application/x-wayland-dnd-flower";
- dnd_offer->x = surface_x;
- dnd_offer->y = surface_y;
- } else {
- fprintf(stderr, "drag offer motion %d, %d, declining\n",
- surface_x, surface_y);
- wl_drag_offer_accept(offer, time, NULL);
- dnd_offer->drag_type = NULL;
- }
-}
-
-static void
-drop_io_func(struct task *task, uint32_t events)
-{
- struct dnd_offer *dnd_offer =
- container_of(task, struct dnd_offer, io_task);
- struct dnd *dnd = dnd_offer->dnd;
- struct dnd_flower_message dnd_flower_message;
- unsigned int len;
- struct item *item;
-
- len = read(dnd_offer->fd,
- &dnd_flower_message, sizeof dnd_flower_message);
- fprintf(stderr, "read %d bytes\n", len);
-
- close(dnd_offer->fd);
-
- item = item_create(dnd->display,
- dnd_offer->x - dnd_flower_message.x_offset - 26,
- dnd_offer->y - dnd_flower_message.y_offset - 66,
- dnd_flower_message.seed);
-
- dnd_add_item(dnd, item);
- window_schedule_redraw(dnd->window);
-
- dnd_offer_destroy(dnd_offer);
-}
-
-static void
-drag_offer_drop(void *data, struct wl_drag_offer *offer)
-{
- struct dnd_offer *dnd_offer = data;
- int p[2];
-
- if (!dnd_offer->drag_type) {
- fprintf(stderr, "got 'drop', but no target\n");
- wl_drag_offer_reject(offer);
- return;
- }
-
- fprintf(stderr, "got 'drop', sending write end of pipe\n");
+ wl_data_source_destroy(dnd_drag->data_source);
+
+ /* Destroy the item that has been dragged out */
+ cairo_surface_destroy(dnd_drag->item->surface);
+ free(dnd_drag->item);
- dnd_offer->refcount++;
- pipe(p);
- wl_drag_offer_receive(offer, p[1]);
- close(p[1]);
+ wl_surface_destroy(dnd_drag->drag_surface);
- dnd_offer->io_task.run = drop_io_func;
- dnd_offer->fd = p[0];
- display_watch_fd(dnd_offer->dnd->display,
- p[0], EPOLLIN, &dnd_offer->io_task);
+ cairo_surface_destroy(dnd_drag->translucent);
+ cairo_surface_destroy(dnd_drag->opaque);
+ free(dnd_drag);
}
-static const struct wl_drag_offer_listener drag_offer_listener = {
- drag_offer_offer,
- drag_offer_pointer_focus,
- drag_offer_motion,
- drag_offer_drop,
+static const struct wl_data_source_listener data_source_listener = {
+ data_source_target,
+ data_source_send,
+ data_source_cancelled
};
-static void
-global_handler(struct wl_display *display, uint32_t id,
- const char *interface, uint32_t version, void *data)
-{
- struct wl_drag_offer *offer;
- struct dnd_offer *dnd_offer;
-
- if (strcmp(interface, "wl_drag_offer") != 0)
- return;
-
- offer = wl_display_bind(display, id, &wl_drag_offer_interface);
-
- dnd_offer = malloc(sizeof *dnd_offer);
- if (dnd_offer == NULL)
- return;
-
- dnd_offer->refcount = 1;
-
- wl_drag_offer_add_listener(offer, &drag_offer_listener, dnd_offer);
- wl_array_init(&dnd_offer->types);
-}
-
static cairo_surface_t *
create_drag_cursor(struct dnd_drag *dnd_drag,
struct item *item, int32_t x, int32_t y, double opacity)
{
struct dnd *dnd = dnd_drag->dnd;
- cairo_surface_t *surface, *pointer;
- int32_t pointer_width, pointer_height, hotspot_x, hotspot_y;
+ cairo_surface_t *surface;
+ struct wl_cursor_image *pointer;
struct rectangle rectangle;
cairo_pattern_t *pattern;
cairo_t *cr;
- pointer = display_get_pointer_surface(dnd->display,
- POINTER_DRAGGING,
- &pointer_width,
- &pointer_height,
- &hotspot_x,
- &hotspot_y);
+ pointer = display_get_pointer_image(dnd->display, CURSOR_DRAGGING);
+ if (!pointer) {
+ fprintf(stderr, "WARNING: grabbing cursor image not found\n");
+ pointer = display_get_pointer_image(dnd->display,
+ CURSOR_LEFT_PTR);
+ assert(pointer && "no cursor image found");
+ }
- rectangle.width = item_width + 2 * pointer_width;
- rectangle.height = item_height + 2 * pointer_height;
- surface = display_create_surface(dnd->display, NULL, &rectangle, 0);
+ rectangle.width = item_width + 2 * pointer->width;
+ rectangle.height = item_height + 2 * pointer->height;
+ surface = display_create_surface(dnd->display, NULL, &rectangle,
+ SURFACE_SHM);
cr = cairo_create(surface);
- cairo_translate(cr, pointer_width, pointer_height);
+ cairo_translate(cr, pointer->width, pointer->height);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0);
cairo_mask(cr, pattern);
cairo_pattern_destroy(pattern);
- cairo_set_source_surface(cr, pointer,
- x - item->x - hotspot_x,
- y - item->y - hotspot_y);
- cairo_surface_destroy(pointer);
- cairo_paint(cr);
/* FIXME: more cairo-gl brokeness */
surface_flush_device(surface);
cairo_destroy(cr);
- dnd_drag->hotspot_x = pointer_width + x - item->x;
- dnd_drag->hotspot_y = pointer_height + y - item->y;
+ dnd_drag->hotspot_x = pointer->width + x - item->x;
+ dnd_drag->hotspot_y = pointer->height + y - item->y;
+ dnd_drag->width = rectangle.width;
+ dnd_drag->height = rectangle.height;
return surface;
}
static void
-dnd_button_handler(struct window *window,
+dnd_button_handler(struct widget *widget,
struct input *input, uint32_t time,
- int button, int state, void *data)
+ uint32_t button, enum wl_pointer_button_state state,
+ void *data)
{
struct dnd *dnd = data;
int32_t x, y;
struct item *item;
struct rectangle allocation;
struct dnd_drag *dnd_drag;
- struct wl_drag *drag;
- int i;
+ struct display *display;
+ struct wl_compositor *compositor;
+ struct wl_buffer *buffer;
+ unsigned int i;
+ uint32_t serial;
+ cairo_surface_t *icon;
- window_get_child_allocation(dnd->window, &allocation);
+ widget_get_allocation(dnd->widget, &allocation);
input_get_position(input, &x, &y);
item = dnd_get_item(dnd, x, y);
x -= allocation.x;
y -= allocation.y;
- if (item && state == 1) {
- fprintf(stderr, "start drag, item %p\n", item);
-
+ if (item && state == WL_POINTER_BUTTON_STATE_PRESSED) {
dnd_drag = malloc(sizeof *dnd_drag);
dnd_drag->dnd = dnd;
dnd_drag->input = input;
}
}
+ display = window_get_display(dnd->window);
+ compositor = display_get_compositor(display);
+ serial = display_get_serial(display);
+ dnd_drag->drag_surface =
+ wl_compositor_create_surface(compositor);
+
+ input_ungrab(input);
+
+ if (dnd->self_only) {
+ dnd_drag->data_source = NULL;
+ } else {
+ dnd_drag->data_source =
+ display_create_data_source(dnd->display);
+ wl_data_source_add_listener(dnd_drag->data_source,
+ &data_source_listener,
+ dnd_drag);
+ wl_data_source_offer(dnd_drag->data_source,
+ "application/x-wayland-dnd-flower");
+ wl_data_source_offer(dnd_drag->data_source,
+ "text/plain; charset=utf-8");
+ }
+
+ wl_data_device_start_drag(input_get_data_device(input),
+ dnd_drag->data_source,
+ window_get_wl_surface(dnd->window),
+ dnd_drag->drag_surface,
+ serial);
+
+ input_set_pointer_image(input, CURSOR_DRAGGING);
+
dnd_drag->opaque =
create_drag_cursor(dnd_drag, item, x, y, 1);
dnd_drag->translucent =
create_drag_cursor(dnd_drag, item, x, y, 0.2);
- drag = window_create_drag(window);
- wl_drag_offer(drag, "application/x-wayland-dnd-flower");
- window_activate_drag(drag, window, input, time);
- wl_drag_add_listener(drag, &drag_listener, dnd_drag);
+ if (dnd->self_only)
+ icon = dnd_drag->opaque;
+ else
+ icon = dnd_drag->translucent;
+
+ buffer = display_get_buffer_for_surface(dnd->display, icon);
+ wl_surface_attach(dnd_drag->drag_surface, buffer,
+ -dnd_drag->hotspot_x, -dnd_drag->hotspot_y);
+ wl_surface_damage(dnd_drag->drag_surface, 0, 0,
+ dnd_drag->width, dnd_drag->height);
+ wl_surface_commit(dnd_drag->drag_surface);
+
+ dnd->current_drag = dnd_drag;
window_schedule_redraw(dnd->window);
}
}
static int
-dnd_motion_handler(struct window *window,
+lookup_cursor(struct dnd *dnd, int x, int y)
+{
+ struct item *item;
+
+ item = dnd_get_item(dnd, x, y);
+ if (item)
+ return CURSOR_HAND1;
+ else
+ return CURSOR_LEFT_PTR;
+}
+
+static int
+dnd_enter_handler(struct widget *widget,
+ struct input *input, float x, float y, void *data)
+{
+ struct dnd *dnd = data;
+
+ dnd->current_drag = NULL;
+
+ return lookup_cursor(dnd, x, y);
+}
+
+static int
+dnd_motion_handler(struct widget *widget,
struct input *input, uint32_t time,
- int32_t x, int32_t y,
- int32_t sx, int32_t sy, void *data)
+ float x, float y, void *data)
+{
+ return lookup_cursor(data, x, y);
+}
+
+static void
+dnd_data_handler(struct window *window,
+ struct input *input,
+ float x, float y, const char **types, void *data)
{
struct dnd *dnd = data;
+
+ if (!types)
+ return;
+
+ if (dnd_get_item(dnd, x, y) || dnd->self_only) {
+ input_accept(input, NULL);
+ } else {
+ input_accept(input, types[0]);
+ }
+}
+
+static void
+dnd_receive_func(void *data, size_t len, int32_t x, int32_t y, void *user_data)
+{
+ struct dnd *dnd = user_data;
+ struct dnd_flower_message *message = data;
struct item *item;
+ struct rectangle allocation;
- item = dnd_get_item(dnd, sx, sy);
+ if (len == 0) {
+ return;
+ } else if (len != sizeof *message) {
+ fprintf(stderr, "odd message length %zu, expected %zu\n",
+ len, sizeof *message);
+ return;
+ }
+
+ widget_get_allocation(dnd->widget, &allocation);
+ item = item_create(dnd->display,
+ x - message->x_offset - allocation.x,
+ y - message->y_offset - allocation.y,
+ message->seed);
- if (item)
- return POINTER_HAND1;
- else
- return POINTER_LEFT_PTR;
+ dnd_add_item(dnd, item);
+ window_schedule_redraw(dnd->window);
+}
+
+static void
+dnd_drop_handler(struct window *window, struct input *input,
+ int32_t x, int32_t y, void *data)
+{
+ struct dnd *dnd = data;
+ struct dnd_flower_message message;
+
+ if (dnd_get_item(dnd, x, y)) {
+ fprintf(stderr, "got 'drop', but no target\n");
+ return;
+ }
+
+ if (!dnd->self_only) {
+ input_receive_drag_data(input,
+ "application/x-wayland-dnd-flower",
+ dnd_receive_func, dnd);
+ } else if (dnd->current_drag) {
+ message.seed = dnd->current_drag->item->seed;
+ message.x_offset = dnd->current_drag->x_offset;
+ message.y_offset = dnd->current_drag->y_offset;
+ dnd_receive_func(&message, sizeof message, x, y, dnd);
+ dnd->current_drag = NULL;
+ } else {
+ fprintf(stderr, "ignoring drop from another client\n");
+ }
}
static struct dnd *
dnd_create(struct display *display)
{
struct dnd *dnd;
- int i, x, y;
+ int x, y;
int32_t width, height;
+ unsigned int i;
dnd = malloc(sizeof *dnd);
if (dnd == NULL)
return dnd;
memset(dnd, 0, sizeof *dnd);
- dnd->window = window_create(display, 400, 400);
+ dnd->window = window_create(display);
+ dnd->widget = frame_create(dnd->window, dnd);
window_set_title(dnd->window, "Wayland Drag and Drop Demo");
dnd->display = display;
dnd->key = 100;
- wl_display_add_global_listener(display_get_display(display),
- global_handler, dnd);
-
for (i = 0; i < ARRAY_LENGTH(dnd->items); i++) {
x = (i % 4) * (item_width + item_padding) + item_padding;
y = (i / 4) * (item_height + item_padding) + item_padding;
}
window_set_user_data(dnd->window, dnd);
- window_set_redraw_handler(dnd->window, redraw_handler);
window_set_keyboard_focus_handler(dnd->window,
keyboard_focus_handler);
- window_set_button_handler(dnd->window,
- dnd_button_handler);
+ window_set_data_handler(dnd->window, dnd_data_handler);
+ window_set_drop_handler(dnd->window, dnd_drop_handler);
- window_set_motion_handler(dnd->window,
- dnd_motion_handler);
+ widget_set_redraw_handler(dnd->widget, dnd_redraw_handler);
+ widget_set_enter_handler(dnd->widget, dnd_enter_handler);
+ widget_set_motion_handler(dnd->widget, dnd_motion_handler);
+ widget_set_button_handler(dnd->widget, dnd_button_handler);
width = 4 * (item_width + item_padding) + item_padding;
height = 4 * (item_height + item_padding) + item_padding;
- window_set_child_size(dnd->window, width, height);
- dnd_draw(dnd);
+ frame_set_child_size(dnd->widget, width, height);
return dnd;
}
-static const GOptionEntry option_entries[] = {
- { NULL }
-};
-
int
main(int argc, char *argv[])
{
struct display *d;
+ struct dnd *dnd;
+ int i;
- d = display_create(&argc, &argv, option_entries);
+ d = display_create(argc, argv);
if (d == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return -1;
}
- dnd_create(d);
+ dnd = dnd_create(d);
+
+ for (i = 1; i < argc; i++)
+ if (strcmp("--self-only", argv[i]) == 0)
+ dnd->self_only = 1;
display_run(d);
projects / profile / ivi / weston.git / blobdiff