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252 lines
6.9 KiB
252 lines
6.9 KiB
/*
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* Copyright © 2013 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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#include <signal.h>
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#include <X11/Xcursor/Xcursor.h>
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#include <libweston/libweston.h>
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#include "xwayland.h"
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#include "hash.h"
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struct dnd_data_source {
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struct weston_data_source base;
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struct weston_wm *wm;
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int version;
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uint32_t window;
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};
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static void
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data_source_accept(struct weston_data_source *base,
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uint32_t serial, const char *mime_type)
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{
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struct dnd_data_source *source = (struct dnd_data_source *) base;
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xcb_client_message_event_t client_message;
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struct weston_wm *wm = source->wm;
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weston_log("got accept, mime-type %s\n", mime_type);
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/* FIXME: If we rewrote UTF8_STRING to
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* text/plain;charset=utf-8 and the source doesn't support the
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* mime-type, we'll have to rewrite the mime-type back to
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* UTF8_STRING here. */
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client_message.response_type = XCB_CLIENT_MESSAGE;
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client_message.format = 32;
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client_message.window = wm->dnd_window;
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client_message.type = wm->atom.xdnd_status;
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client_message.data.data32[0] = wm->dnd_window;
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client_message.data.data32[1] = 2;
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if (mime_type)
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client_message.data.data32[1] |= 1;
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client_message.data.data32[2] = 0;
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client_message.data.data32[3] = 0;
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client_message.data.data32[4] = wm->atom.xdnd_action_copy;
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xcb_send_event(wm->conn, 0, wm->dnd_owner,
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XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT,
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(char *) &client_message);
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}
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static void
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data_source_send(struct weston_data_source *base,
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const char *mime_type, int32_t fd)
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{
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struct dnd_data_source *source = (struct dnd_data_source *) base;
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struct weston_wm *wm = source->wm;
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weston_log("got send, %s\n", mime_type);
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/* Get data for the utf8_string target */
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xcb_convert_selection(wm->conn,
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wm->selection_window,
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wm->atom.xdnd_selection,
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wm->atom.utf8_string,
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wm->atom.wl_selection,
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XCB_TIME_CURRENT_TIME);
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xcb_flush(wm->conn);
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fcntl(fd, F_SETFL, O_WRONLY | O_NONBLOCK);
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wm->data_source_fd = fd;
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}
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static void
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data_source_cancel(struct weston_data_source *source)
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{
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weston_log("got cancel\n");
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}
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static void
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handle_enter(struct weston_wm *wm, xcb_client_message_event_t *client_message)
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{
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struct dnd_data_source *source;
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struct weston_seat *seat = weston_wm_pick_seat(wm);
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struct weston_pointer *pointer = weston_seat_get_pointer(seat);
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char **p;
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const char *name;
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uint32_t *types;
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int i, length, has_text;
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xcb_get_property_cookie_t cookie;
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xcb_get_property_reply_t *reply;
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source = zalloc(sizeof *source);
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if (source == NULL)
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return;
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wl_signal_init(&source->base.destroy_signal);
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source->base.accept = data_source_accept;
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source->base.send = data_source_send;
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source->base.cancel = data_source_cancel;
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source->wm = wm;
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source->window = client_message->data.data32[0];
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source->version = client_message->data.data32[1] >> 24;
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if (client_message->data.data32[1] & 1) {
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cookie = xcb_get_property(wm->conn,
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0, /* delete */
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source->window,
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wm->atom.xdnd_type_list,
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XCB_ATOM_ANY, 0, 2048);
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reply = xcb_get_property_reply(wm->conn, cookie, NULL);
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types = xcb_get_property_value(reply);
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length = reply->value_len;
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} else {
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reply = NULL;
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types = &client_message->data.data32[2];
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length = 3;
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}
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wl_array_init(&source->base.mime_types);
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has_text = 0;
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for (i = 0; i < length; i++) {
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if (types[i] == XCB_ATOM_NONE)
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continue;
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name = get_atom_name(wm->conn, types[i]);
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if (types[i] == wm->atom.utf8_string ||
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types[i] == wm->atom.text_plain_utf8 ||
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types[i] == wm->atom.text_plain) {
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if (has_text)
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continue;
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has_text = 1;
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p = wl_array_add(&source->base.mime_types, sizeof *p);
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if (p)
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*p = strdup("text/plain;charset=utf-8");
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} else if (strchr(name, '/')) {
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p = wl_array_add(&source->base.mime_types, sizeof *p);
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if (p)
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*p = strdup(name);
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}
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}
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free(reply);
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weston_pointer_start_drag(pointer, &source->base, NULL, NULL);
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}
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int
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weston_wm_handle_dnd_event(struct weston_wm *wm,
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xcb_generic_event_t *event)
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{
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xcb_xfixes_selection_notify_event_t *xfixes_selection_notify =
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(xcb_xfixes_selection_notify_event_t *) event;
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xcb_client_message_event_t *client_message =
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(xcb_client_message_event_t *) event;
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switch (event->response_type - wm->xfixes->first_event) {
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case XCB_XFIXES_SELECTION_NOTIFY:
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if (xfixes_selection_notify->selection != wm->atom.xdnd_selection)
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return 0;
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weston_log("XdndSelection owner: %d!\n",
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xfixes_selection_notify->owner);
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return 1;
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}
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switch (EVENT_TYPE(event)) {
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case XCB_CLIENT_MESSAGE:
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if (client_message->type == wm->atom.xdnd_enter) {
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handle_enter(wm, client_message);
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return 1;
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} else if (client_message->type == wm->atom.xdnd_leave) {
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weston_log("got leave!\n");
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return 1;
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} else if (client_message->type == wm->atom.xdnd_drop) {
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weston_log("got drop!\n");
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return 1;
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}
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return 0;
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}
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return 0;
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}
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void
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weston_wm_dnd_init(struct weston_wm *wm)
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{
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uint32_t values[1], version = 4, mask;
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mask =
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XCB_XFIXES_SELECTION_EVENT_MASK_SET_SELECTION_OWNER |
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XCB_XFIXES_SELECTION_EVENT_MASK_SELECTION_WINDOW_DESTROY |
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XCB_XFIXES_SELECTION_EVENT_MASK_SELECTION_CLIENT_CLOSE;
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xcb_xfixes_select_selection_input(wm->conn, wm->selection_window,
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wm->atom.xdnd_selection, mask);
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wm->dnd_window = xcb_generate_id(wm->conn);
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values[0] =
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XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
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XCB_EVENT_MASK_PROPERTY_CHANGE;
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xcb_create_window(wm->conn,
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XCB_COPY_FROM_PARENT,
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wm->dnd_window,
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wm->screen->root,
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0, 0,
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8192, 8192,
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0,
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XCB_WINDOW_CLASS_INPUT_ONLY,
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wm->screen->root_visual,
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XCB_CW_EVENT_MASK, values);
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xcb_change_property(wm->conn,
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XCB_PROP_MODE_REPLACE,
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wm->dnd_window,
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wm->atom.xdnd_aware,
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XCB_ATOM_ATOM,
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32, /* format */
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1, &version);
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}
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