mirrors/weston
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
1493d2ae1c
weston/clients/window.c
Ander Conselvan de Oliveira 1493d2ae1c window: use libXcursor for loading pointer images
2012-05-03 10:14:04 -04:00

3120 lines
70 KiB
C
Raw Blame History

/*
* Copyright © 2008 Kristian Høgsberg
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#define _GNU_SOURCE
#include "../config.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <math.h>
#include <assert.h>
#include <time.h>
#include <cairo.h>
#include <glib.h>
#include <sys/mman.h>
#include <sys/epoll.h>
#include <pixman.h>
#include <wayland-egl.h>
#ifdef USE_CAIRO_GLESV2
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#else
#include <GL/gl.h>
#endif
#include <EGL/egl.h>
#include <EGL/eglext.h>
#ifdef HAVE_CAIRO_EGL
#include <cairo-gl.h>
#endif
#include <xkbcommon/xkbcommon.h>
#include <X11/X.h>
#include <X11/Xcursor/Xcursor.h>
#include <linux/input.h>
#include <wayland-client.h>
#include "cairo-util.h"
#include "window.h"
struct cursor;
struct display {
struct wl_display *display;
struct wl_compositor *compositor;
struct wl_shell *shell;
struct wl_shm *shm;
struct wl_data_device_manager *data_device_manager;
EGLDisplay dpy;
EGLConfig argb_config;
EGLContext argb_ctx;
cairo_device_t *argb_device;
uint32_t serial;
int display_fd;
uint32_t mask;
struct task display_task;
int epoll_fd;
struct wl_list deferred_list;
int running;
struct wl_list window_list;
struct wl_list input_list;
struct wl_list output_list;
cairo_surface_t *active_frame, *inactive_frame, *shadow;
int frame_radius;
struct xkb_desc *xkb;
struct cursor *cursors;
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_target_texture_2d;
PFNEGLCREATEIMAGEKHRPROC create_image;
PFNEGLDESTROYIMAGEKHRPROC destroy_image;
display_output_handler_t output_configure_handler;
void *user_data;
};
enum {
TYPE_NONE,
TYPE_TOPLEVEL,
TYPE_FULLSCREEN,
TYPE_MAXIMIZED,
TYPE_TRANSIENT,
TYPE_MENU,
TYPE_CUSTOM
};
struct window {
struct display *display;
struct window *parent;
struct wl_surface *surface;
struct wl_shell_surface *shell_surface;
struct wl_region *input_region;
struct wl_region *opaque_region;
char *title;
struct rectangle allocation, saved_allocation, server_allocation;
struct rectangle pending_allocation;
int x, y;
int resize_edges;
int redraw_scheduled;
int redraw_needed;
struct task redraw_task;
int resize_needed;
int type;
int transparent;
struct input *keyboard_device;
enum window_buffer_type buffer_type;
cairo_surface_t *cairo_surface;
struct wl_shm_pool *pool;
size_t pool_size;
void *pool_data;
window_key_handler_t key_handler;
window_keyboard_focus_handler_t keyboard_focus_handler;
window_data_handler_t data_handler;
window_drop_handler_t drop_handler;
window_close_handler_t close_handler;
struct frame *frame;
struct widget *widget;
void *user_data;
struct wl_list link;
};
struct widget {
struct window *window;
struct wl_list child_list;
struct wl_list link;
struct rectangle allocation;
widget_resize_handler_t resize_handler;
widget_redraw_handler_t redraw_handler;
widget_enter_handler_t enter_handler;
widget_leave_handler_t leave_handler;
widget_motion_handler_t motion_handler;
widget_button_handler_t button_handler;
void *user_data;
int opaque;
};
struct input {
struct display *display;
struct wl_input_device *input_device;
struct window *pointer_focus;
struct window *keyboard_focus;
int current_cursor;
uint32_t modifiers;
uint32_t pointer_enter_serial;
int32_t sx, sy;
struct wl_list link;
struct widget *focus_widget;
struct widget *grab;
uint32_t grab_button;
struct wl_data_device *data_device;
struct data_offer *drag_offer;
struct data_offer *selection_offer;
};
struct output {
struct display *display;
struct wl_output *output;
struct rectangle allocation;
struct wl_list link;
display_output_handler_t destroy_handler;
void *user_data;
};
struct frame {
struct widget *widget;
struct widget *child;
int margin;
int width;
int titlebar_height;
};
struct menu {
struct window *window;
struct widget *widget;
struct input *input;
const char **entries;
uint32_t time;
int current;
int count;
menu_func_t func;
};
struct cursor_image {
cairo_surface_t *surface;
int width, height;
int hotspot_x, hotspot_y;
int delay;
};
struct cursor {
int n_images;
struct cursor_image *images;
};
enum {
POINTER_DEFAULT = 100,
POINTER_UNSET
};
enum window_location {
WINDOW_INTERIOR = 0,
WINDOW_RESIZING_TOP = 1,
WINDOW_RESIZING_BOTTOM = 2,
WINDOW_RESIZING_LEFT = 4,
WINDOW_RESIZING_TOP_LEFT = 5,
WINDOW_RESIZING_BOTTOM_LEFT = 6,
WINDOW_RESIZING_RIGHT = 8,
WINDOW_RESIZING_TOP_RIGHT = 9,
WINDOW_RESIZING_BOTTOM_RIGHT = 10,
WINDOW_RESIZING_MASK = 15,
WINDOW_EXTERIOR = 16,
WINDOW_TITLEBAR = 17,
WINDOW_CLIENT_AREA = 18,
};
const char *option_xkb_layout = "us";
const char *option_xkb_variant = "";
const char *option_xkb_options = "";
static const struct weston_option xkb_options[] = {
{ WESTON_OPTION_STRING, "xkb-layout", 0, &option_xkb_layout },
{ WESTON_OPTION_STRING, "xkb-variant", 0, &option_xkb_variant },
{ WESTON_OPTION_STRING, "xkb-options", 0, &option_xkb_options },
};
static const cairo_user_data_key_t surface_data_key;
struct surface_data {
struct wl_buffer *buffer;
};
#define MULT(_d,c,a,t) \
do { t = c * a + 0x7f; _d = ((t >> 8) + t) >> 8; } while (0)
#ifdef HAVE_CAIRO_EGL
struct egl_window_surface_data {
struct display *display;
struct wl_surface *surface;
struct wl_egl_window *window;
EGLSurface surf;
};
static void
egl_window_surface_data_destroy(void *p)
{
struct egl_window_surface_data *data = p;
struct display *d = data->display;
eglDestroySurface(d->dpy, data->surf);
wl_egl_window_destroy(data->window);
data->surface = NULL;
free(p);
}
static cairo_surface_t *
display_create_egl_window_surface(struct display *display,
struct wl_surface *surface,
uint32_t flags,
struct rectangle *rectangle)
{
cairo_surface_t *cairo_surface;
struct egl_window_surface_data *data;
EGLConfig config;
cairo_device_t *device;
data = malloc(sizeof *data);
if (data == NULL)
return NULL;
data->display = display;
data->surface = surface;
config = display->argb_config;
device = display->argb_device;
data->window = wl_egl_window_create(surface,
rectangle->width,
rectangle->height);
data->surf = eglCreateWindowSurface(display->dpy, config,
data->window, NULL);
cairo_surface = cairo_gl_surface_create_for_egl(device,
data->surf,
rectangle->width,
rectangle->height);
cairo_surface_set_user_data(cairo_surface, &surface_data_key,
data, egl_window_surface_data_destroy);
return cairo_surface;
}
#endif
struct wl_buffer *
display_get_buffer_for_surface(struct display *display,
cairo_surface_t *surface)
{
struct surface_data *data;
data = cairo_surface_get_user_data (surface, &surface_data_key);
return data->buffer;
}
struct shm_surface_data {
struct surface_data data;
void *map;
size_t length;
};
static void
shm_surface_data_destroy(void *p)
{
struct shm_surface_data *data = p;
wl_buffer_destroy(data->data.buffer);
if (data->map)
munmap(data->map, data->length);
}
static void
shm_surface_write(cairo_surface_t *surface, unsigned char *data, int count)
{
void *dest = cairo_image_surface_get_data(surface);
memcpy(dest, data, count);
}
static struct wl_shm_pool *
make_shm_pool(struct display *display, int size, void **data)
{
char filename[] = "/tmp/wayland-shm-XXXXXX";
struct wl_shm_pool *pool;
int fd;
fd = mkstemp(filename);
if (fd < 0) {
fprintf(stderr, "open %s failed: %m\n", filename);
return NULL;
}
if (ftruncate(fd, size) < 0) {
fprintf(stderr, "ftruncate failed: %m\n");
close(fd);
return NULL;
}
*data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
unlink(filename);
if (*data == MAP_FAILED) {
fprintf(stderr, "mmap failed: %m\n");
close(fd);
return NULL;
}
pool = wl_shm_create_pool(display->shm, fd, size);
close(fd);
return pool;
}
static cairo_surface_t *
display_create_shm_surface(struct display *display,
struct rectangle *rectangle, uint32_t flags,
struct window *window)
{
struct shm_surface_data *data;
struct wl_shm_pool *pool = NULL;
uint32_t format;
cairo_surface_t *surface;
void *map;
int stride;
data = malloc(sizeof *data);
if (data == NULL)
return NULL;
stride = cairo_format_stride_for_width (CAIRO_FORMAT_ARGB32,
rectangle->width);
data->length = stride * rectangle->height;
if (window && window->pool && data->length < window->pool_size) {
pool = window->pool;
map = window->pool_data;
data->map = NULL;
} else {
pool = make_shm_pool(display, data->length, &map);
data->map = map;
}
surface = cairo_image_surface_create_for_data (map,
CAIRO_FORMAT_ARGB32,
rectangle->width,
rectangle->height,
stride);
cairo_surface_set_user_data (surface, &surface_data_key,
data, shm_surface_data_destroy);
if (flags & SURFACE_OPAQUE)
format = WL_SHM_FORMAT_XRGB8888;
else
format = WL_SHM_FORMAT_ARGB8888;
data->data.buffer = wl_shm_pool_create_buffer(pool, 0,
rectangle->width,
rectangle->height,
stride, format);
if (data->map)
wl_shm_pool_destroy(pool);
return surface;
}
static int
check_size(struct rectangle *rect)
{
if (rect->width && rect->height)
return 0;
fprintf(stderr, "tried to create surface of "
"width: %d, height: %d\n", rect->width, rect->height);
return -1;
}
cairo_surface_t *
display_create_surface(struct display *display,
struct wl_surface *surface,
struct rectangle *rectangle,
uint32_t flags)
{
if (check_size(rectangle) < 0)
return NULL;
#ifdef HAVE_CAIRO_EGL
if (display->dpy)
return display_create_egl_window_surface(display,
surface,
flags,
rectangle);
#endif
return display_create_shm_surface(display, rectangle, flags, NULL);
}
static const char *cursors[] = {
"bottom_left_corner",
"bottom_right_corner",
"bottom_side",
"grabbing",
"left_ptr",
"left_side",
"right_side",
"top_left_corner",
"top_right_corner",
"top_side",
"xterm",
"hand1",
};
static void
create_cursor_from_images(struct display *display, struct cursor *cursor,
XcursorImages *images)
{
int i;
struct rectangle rect;
XcursorImage *image;
cursor->images = malloc(images->nimage * sizeof *cursor->images);
cursor->n_images = images->nimage;
for (i = 0; i < images->nimage; i++) {
image = images->images[i];
rect.width = image->width;
rect.height = image->height;
cursor->images[i].surface =
display_create_shm_surface(display, &rect, 0, NULL);
shm_surface_write(cursor->images[i].surface,
(unsigned char *) image->pixels,
image->width * image->height * sizeof image->pixels[0]);
cursor->images[i].width = image->width;
cursor->images[i].height = image->height;
cursor->images[i].hotspot_x = image->xhot;
cursor->images[i].hotspot_y = image->yhot;
cursor->images[i].delay = image->delay;
}
}
static void
create_cursors(struct display *display)
{
int i, count;
struct cursor *cursor;
XcursorImages *images;
count = ARRAY_LENGTH(cursors);
display->cursors = malloc(count * sizeof *display->cursors);
for (i = 0; i < count; i++) {
images = XcursorLibraryLoadImages(cursors[i], NULL, 32);
if (!images) {
fprintf(stderr, "Error loading cursor: %s\n",
cursors[i]);
continue;
}
cursor = &display->cursors[i];
create_cursor_from_images(display, cursor, images);
XcursorImagesDestroy(images);
}
}
static void
destroy_cursor_images(struct cursor *cursor)
{
int i;
for (i = 0; i < cursor->n_images; i++)
if (cursor->images[i].surface)
cairo_surface_destroy(cursor->images[i].surface);
free(cursor->images);
}
static void
destroy_cursors(struct display *display)
{
int i, count;
count = ARRAY_LENGTH(cursors);
for (i = 0; i < count; ++i) {
destroy_cursor_images(&display->cursors[i]);
}
free(display->cursors);
}
cairo_surface_t *
display_get_pointer_surface(struct display *display, int pointer,
int *width, int *height,
int *hotspot_x, int *hotspot_y)
{
struct cursor *cursor = &display->cursors[pointer];
cairo_surface_t *surface = cursor->images[0].surface;
/* FIXME returning information for the first image. Something better
* is needed for animated cursors */
*width = cairo_image_surface_get_width(surface);
*height = cairo_image_surface_get_height(surface);
*hotspot_x = cursor->images[0].hotspot_x;
*hotspot_y = cursor->images[0].hotspot_y;
return cairo_surface_reference(surface);
}
static void
window_get_resize_dx_dy(struct window *window, int *x, int *y)
{
if (window->resize_edges & WINDOW_RESIZING_LEFT)
*x = window->server_allocation.width - window->allocation.width;
else
*x = 0;
if (window->resize_edges & WINDOW_RESIZING_TOP)
*y = window->server_allocation.height -
window->allocation.height;
else
*y = 0;
window->resize_edges = 0;
}
static void
window_attach_surface(struct window *window)
{
struct display *display = window->display;
struct wl_buffer *buffer;
#ifdef HAVE_CAIRO_EGL
struct egl_window_surface_data *data;
#endif
int32_t x, y;
if (window->type == TYPE_NONE) {
window->type = TYPE_TOPLEVEL;
if (display->shell)
wl_shell_surface_set_toplevel(window->shell_surface);
}
switch (window->buffer_type) {
#ifdef HAVE_CAIRO_EGL
case WINDOW_BUFFER_TYPE_EGL_WINDOW:
data = cairo_surface_get_user_data(window->cairo_surface,
&surface_data_key);
cairo_gl_surface_swapbuffers(window->cairo_surface);
wl_egl_window_get_attached_size(data->window,
&window->server_allocation.width,
&window->server_allocation.height);
break;
#endif
case WINDOW_BUFFER_TYPE_SHM:
buffer =
display_get_buffer_for_surface(display,
window->cairo_surface);
window_get_resize_dx_dy(window, &x, &y);
wl_surface_attach(window->surface, buffer, x, y);
wl_surface_damage(window->surface, 0, 0,
window->allocation.width,
window->allocation.height);
window->server_allocation = window->allocation;
cairo_surface_destroy(window->cairo_surface);
window->cairo_surface = NULL;
break;
default:
return;
}
if (window->input_region) {
wl_surface_set_input_region(window->surface,
window->input_region);
wl_region_destroy(window->input_region);
window->input_region = NULL;
}
if (window->opaque_region) {
wl_surface_set_opaque_region(window->surface,
window->opaque_region);
wl_region_destroy(window->opaque_region);
window->opaque_region = NULL;
}
}
void
window_flush(struct window *window)
{
if (window->cairo_surface)
window_attach_surface(window);
}
void
window_set_surface(struct window *window, cairo_surface_t *surface)
{
cairo_surface_reference(surface);
if (window->cairo_surface != NULL)
cairo_surface_destroy(window->cairo_surface);
window->cairo_surface = surface;
}
#ifdef HAVE_CAIRO_EGL
static void
window_resize_cairo_window_surface(struct window *window)
{
struct egl_window_surface_data *data;
int x, y;
data = cairo_surface_get_user_data(window->cairo_surface,
&surface_data_key);
window_get_resize_dx_dy(window, &x, &y),
wl_egl_window_resize(data->window,
window->allocation.width,
window->allocation.height,
x,y);
cairo_gl_surface_set_size(window->cairo_surface,
window->allocation.width,
window->allocation.height);
}
#endif
struct display *
window_get_display(struct window *window)
{
return window->display;
}
void
window_create_surface(struct window *window)
{
cairo_surface_t *surface;
uint32_t flags = 0;
if (!window->transparent)
flags = SURFACE_OPAQUE;
switch (window->buffer_type) {
#ifdef HAVE_CAIRO_EGL
case WINDOW_BUFFER_TYPE_EGL_WINDOW:
if (window->cairo_surface) {
window_resize_cairo_window_surface(window);
return;
}
surface = display_create_surface(window->display,
window->surface,
&window->allocation, flags);
break;
#endif
case WINDOW_BUFFER_TYPE_SHM:
surface = display_create_shm_surface(window->display,
&window->allocation,
flags, window);
break;
default:
surface = NULL;
break;
}
window_set_surface(window, surface);
cairo_surface_destroy(surface);
}
static void frame_destroy(struct frame *frame);
void
window_destroy(struct window *window)
{
struct display *display = window->display;
struct input *input;
if (window->redraw_scheduled)
wl_list_remove(&window->redraw_task.link);
wl_list_for_each(input, &display->input_list, link) {
if (input->pointer_focus == window)
input->pointer_focus = NULL;
if (input->keyboard_focus == window)
input->keyboard_focus = NULL;
if (input->focus_widget &&
input->focus_widget->window == window)
input->focus_widget = NULL;
}
if (window->input_region)
wl_region_destroy(window->input_region);
if (window->opaque_region)
wl_region_destroy(window->opaque_region);
if (window->frame)
frame_destroy(window->frame);
if (window->shell_surface)
wl_shell_surface_destroy(window->shell_surface);
wl_surface_destroy(window->surface);
wl_list_remove(&window->link);
if (window->cairo_surface != NULL)
cairo_surface_destroy(window->cairo_surface);
free(window->title);
free(window);
}
static struct widget *
widget_find_widget(struct widget *widget, int32_t x, int32_t y)
{
struct widget *child, *target;
wl_list_for_each(child, &widget->child_list, link) {
target = widget_find_widget(child, x, y);
if (target)
return target;
}
if (widget->allocation.x <= x &&
x < widget->allocation.x + widget->allocation.width &&
widget->allocation.y <= y &&
y < widget->allocation.y + widget->allocation.height) {
return widget;
}
return NULL;
}
static struct widget *
widget_create(struct window *window, void *data)
{
struct widget *widget;
widget = malloc(sizeof *widget);
memset(widget, 0, sizeof *widget);
widget->window = window;
widget->user_data = data;
widget->allocation = window->allocation;
wl_list_init(&widget->child_list);
widget->opaque = 0;
return widget;
}
struct widget *
window_add_widget(struct window *window, void *data)
{
window->widget = widget_create(window, data);
wl_list_init(&window->widget->link);
return window->widget;
}
struct widget *
widget_add_widget(struct widget *parent, void *data)
{
struct widget *widget;
widget = widget_create(parent->window, data);
wl_list_insert(parent->child_list.prev, &widget->link);
return widget;
}
void
widget_destroy(struct widget *widget)
{
struct display *display = widget->window->display;
struct input *input;
wl_list_for_each(input, &display->input_list, link) {
if (input->focus_widget == widget)
input->focus_widget = NULL;
}
wl_list_remove(&widget->link);
free(widget);
}
void
widget_get_allocation(struct widget *widget, struct rectangle *allocation)
{
*allocation = widget->allocation;
}
void
widget_set_size(struct widget *widget, int32_t width, int32_t height)
{
widget->allocation.width = width;
widget->allocation.height = height;
}
void
widget_set_allocation(struct widget *widget,
int32_t x, int32_t y, int32_t width, int32_t height)
{
widget->allocation.x = x;
widget->allocation.y = y;
widget_set_size(widget, width, height);
}
void
widget_set_transparent(struct widget *widget, int transparent)
{
widget->opaque = !transparent;
}
void *
widget_get_user_data(struct widget *widget)
{
return widget->user_data;
}
void
widget_set_resize_handler(struct widget *widget,
widget_resize_handler_t handler)
{
widget->resize_handler = handler;
}
void
widget_set_redraw_handler(struct widget *widget,
widget_redraw_handler_t handler)
{
widget->redraw_handler = handler;
}
void
widget_set_enter_handler(struct widget *widget, widget_enter_handler_t handler)
{
widget->enter_handler = handler;
}
void
widget_set_leave_handler(struct widget *widget, widget_leave_handler_t handler)
{
widget->leave_handler = handler;
}
void
widget_set_motion_handler(struct widget *widget,
widget_motion_handler_t handler)
{
widget->motion_handler = handler;
}
void
widget_set_button_handler(struct widget *widget,
widget_button_handler_t handler)
{
widget->button_handler = handler;
}
void
widget_schedule_redraw(struct widget *widget)
{
window_schedule_redraw(widget->window);
}
cairo_surface_t *
window_get_surface(struct window *window)
{
return cairo_surface_reference(window->cairo_surface);
}
struct wl_surface *
window_get_wl_surface(struct window *window)
{
return window->surface;
}
struct wl_shell_surface *
window_get_wl_shell_surface(struct window *window)
{
return window->shell_surface;
}
static void
frame_resize_handler(struct widget *widget,
int32_t width, int32_t height, void *data)
{
struct frame *frame = data;
struct widget *child = frame->child;
struct rectangle allocation;
struct display *display = widget->window->display;
int decoration_width, decoration_height;
int opaque_margin;
if (widget->window->type != TYPE_FULLSCREEN) {
decoration_width = (frame->width + frame->margin) * 2;
decoration_height = frame->width +
frame->titlebar_height + frame->margin * 2;
allocation.x = frame->width + frame->margin;
allocation.y = frame->titlebar_height + frame->margin;
allocation.width = width - decoration_width;
allocation.height = height - decoration_height;
widget->window->input_region =
wl_compositor_create_region(display->compositor);
wl_region_add(widget->window->input_region,
frame->margin, frame->margin,
width - 2 * frame->margin,
height - 2 * frame->margin);
opaque_margin = frame->margin + display->frame_radius;
} else {
decoration_width = 0;
decoration_height = 0;
allocation.x = 0;
allocation.y = 0;
allocation.width = width;
allocation.height = height;
opaque_margin = 0;
}
widget_set_allocation(child, allocation.x, allocation.y,
allocation.width, allocation.height);
if (child->resize_handler)
child->resize_handler(child,
allocation.width,
allocation.height,
child->user_data);
widget_set_allocation(widget, 0, 0,
child->allocation.width + decoration_width,
child->allocation.height + decoration_height);
if (child->opaque) {
widget->window->opaque_region =
wl_compositor_create_region(display->compositor);
wl_region_add(widget->window->opaque_region,
opaque_margin, opaque_margin,
widget->allocation.width - 2 * opaque_margin,
widget->allocation.height - 2 * opaque_margin);
}
}
static void
frame_redraw_handler(struct widget *widget, void *data)
{
struct frame *frame = data;
cairo_t *cr;
cairo_text_extents_t extents;
cairo_surface_t *source;
int x, y, width, height;
struct window *window = widget->window;
if (window->type == TYPE_FULLSCREEN)
return;
width = widget->allocation.width;
height = widget->allocation.height;
cr = cairo_create(window->cairo_surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0);
cairo_paint(cr);
cairo_set_source_rgba(cr, 0, 0, 0, 0.45);
tile_mask(cr, window->display->shadow,
2, 2, width + 8, height + 8,
64, 64);
if (window->keyboard_device)
source = window->display->active_frame;
else
source = window->display->inactive_frame;
tile_source(cr, source,
frame->margin, frame->margin,
width - frame->margin * 2, height - frame->margin * 2,
frame->width, frame->titlebar_height);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_select_font_face(cr, "sans",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size(cr, 14);
cairo_text_extents(cr, window->title, &extents);
x = (width - extents.width) / 2;
y = frame->margin + 8 - extents.y_bearing;
if (window->keyboard_device) {
cairo_move_to(cr, x + 1, y + 1);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_show_text(cr, window->title);
cairo_move_to(cr, x, y);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_show_text(cr, window->title);
} else {
cairo_move_to(cr, x, y);
cairo_set_source_rgb(cr, 0.4, 0.4, 0.4);
cairo_show_text(cr, window->title);
}
cairo_destroy(cr);
}
static int
frame_get_pointer_location(struct frame *frame, int32_t x, int32_t y)
{
struct widget *widget = frame->widget;
int vlocation, hlocation, location;
const int grip_size = 8;
if (x < frame->margin)
hlocation = WINDOW_EXTERIOR;
else if (frame->margin <= x && x < frame->margin + grip_size)
hlocation = WINDOW_RESIZING_LEFT;
else if (x < widget->allocation.width - frame->margin - grip_size)
hlocation = WINDOW_INTERIOR;
else if (x < widget->allocation.width - frame->margin)
hlocation = WINDOW_RESIZING_RIGHT;
else
hlocation = WINDOW_EXTERIOR;
if (y < frame->margin)
vlocation = WINDOW_EXTERIOR;
else if (frame->margin <= y && y < frame->margin + grip_size)
vlocation = WINDOW_RESIZING_TOP;
else if (y < widget->allocation.height - frame->margin - grip_size)
vlocation = WINDOW_INTERIOR;
else if (y < widget->allocation.height - frame->margin)
vlocation = WINDOW_RESIZING_BOTTOM;
else
vlocation = WINDOW_EXTERIOR;
location = vlocation | hlocation;
if (location & WINDOW_EXTERIOR)
location = WINDOW_EXTERIOR;
if (location == WINDOW_INTERIOR && y < frame->margin + 50)
location = WINDOW_TITLEBAR;
else if (location == WINDOW_INTERIOR)
location = WINDOW_CLIENT_AREA;
return location;
}
static int
frame_get_pointer_image_for_location(struct frame *frame, struct input *input)
{
int location;
location = frame_get_pointer_location(frame, input->sx, input->sy);
switch (location) {
case WINDOW_RESIZING_TOP:
return POINTER_TOP;
case WINDOW_RESIZING_BOTTOM:
return POINTER_BOTTOM;
case WINDOW_RESIZING_LEFT:
return POINTER_LEFT;
case WINDOW_RESIZING_RIGHT:
return POINTER_RIGHT;
case WINDOW_RESIZING_TOP_LEFT:
return POINTER_TOP_LEFT;
case WINDOW_RESIZING_TOP_RIGHT:
return POINTER_TOP_RIGHT;
case WINDOW_RESIZING_BOTTOM_LEFT:
return POINTER_BOTTOM_LEFT;
case WINDOW_RESIZING_BOTTOM_RIGHT:
return POINTER_BOTTOM_RIGHT;
case WINDOW_EXTERIOR:
case WINDOW_TITLEBAR:
default:
return POINTER_LEFT_PTR;
}
}
static void
frame_menu_func(struct window *window, int index, void *data)
{
switch (index) {
case 0: /* close */
if (window->close_handler)
window->close_handler(window->parent,
window->user_data);
else
display_exit(window->display);
break;
case 1: /* fullscreen */
/* we don't have a way to get out of fullscreen for now */
window_set_fullscreen(window, 1);
break;
case 2: /* rotate */
case 3: /* scale */
break;
}
}
void
window_show_frame_menu(struct window *window,
struct input *input, uint32_t time)
{
int32_t x, y;
static const char *entries[] = {
"Close", "Fullscreen", "Rotate", "Scale"
};
input_get_position(input, &x, &y);
window_show_menu(window->display, input, time, window,
x - 10, y - 10, frame_menu_func, entries, 4);
}
static int
frame_enter_handler(struct widget *widget,
struct input *input, int32_t x, int32_t y, void *data)
{
return frame_get_pointer_image_for_location(data, input);
}
static int
frame_motion_handler(struct widget *widget,
struct input *input, uint32_t time,
int32_t x, int32_t y, void *data)
{
return frame_get_pointer_image_for_location(data, input);
}
static void
frame_button_handler(struct widget *widget,
struct input *input, uint32_t time,
int button, int state, void *data)
{
struct frame *frame = data;
struct window *window = widget->window;
struct display *display = window->display;
int location;
location = frame_get_pointer_location(frame, input->sx, input->sy);
if (window->display->shell && button == BTN_LEFT && state == 1) {
switch (location) {
case WINDOW_TITLEBAR:
if (!window->shell_surface)
break;
input_set_pointer_image(input, time, POINTER_DRAGGING);
input_ungrab(input);
wl_shell_surface_move(window->shell_surface,
input_get_input_device(input),
display->serial);
break;
case WINDOW_RESIZING_TOP:
case WINDOW_RESIZING_BOTTOM:
case WINDOW_RESIZING_LEFT:
case WINDOW_RESIZING_RIGHT:
case WINDOW_RESIZING_TOP_LEFT:
case WINDOW_RESIZING_TOP_RIGHT:
case WINDOW_RESIZING_BOTTOM_LEFT:
case WINDOW_RESIZING_BOTTOM_RIGHT:
if (!window->shell_surface)
break;
input_ungrab(input);
if (!display->dpy) {
/* If we're using shm, allocate a big
pool to create buffers out of while
we resize. We should probably base
this number on the size of the output. */
window->pool_size = 6 * 1024 * 1024;
window->pool = make_shm_pool(display,
window->pool_size,
&window->pool_data);
}
wl_shell_surface_resize(window->shell_surface,
input_get_input_device(input),
display->serial, location);
break;
}
} else if (button == BTN_RIGHT && state == 1) {
window_show_frame_menu(window, input, time);
}
}
struct widget *
frame_create(struct window *window, void *data)
{
struct frame *frame;
frame = malloc(sizeof *frame);
memset(frame, 0, sizeof *frame);
frame->widget = window_add_widget(window, frame);
frame->child = widget_add_widget(frame->widget, data);
frame->margin = 32;
frame->width = 4;
frame->titlebar_height = 30
;
widget_set_redraw_handler(frame->widget, frame_redraw_handler);
widget_set_resize_handler(frame->widget, frame_resize_handler);
widget_set_enter_handler(frame->widget, frame_enter_handler);
widget_set_motion_handler(frame->widget, frame_motion_handler);
widget_set_button_handler(frame->widget, frame_button_handler);
window->frame = frame;
return frame->child;
}
static void
frame_destroy(struct frame *frame)
{
/* frame->child must be destroyed by the application */
widget_destroy(frame->widget);
free(frame);
}
static void
input_set_focus_widget(struct input *input, struct widget *focus,
int32_t x, int32_t y)
{
struct widget *old, *widget;
int pointer = POINTER_LEFT_PTR;
if (focus == input->focus_widget)
return;
old = input->focus_widget;
if (old) {
widget = old;
if (input->grab)
widget = input->grab;
if (widget->leave_handler)
widget->leave_handler(old, input, widget->user_data);
input->focus_widget = NULL;
}
if (focus) {
widget = focus;
if (input->grab)
widget = input->grab;
if (widget->enter_handler)
pointer = widget->enter_handler(focus, input, x, y,
widget->user_data);
input->focus_widget = focus;
input_set_pointer_image(input, input->pointer_enter_serial,
pointer);
}
}
static void
input_handle_motion(void *data, struct wl_input_device *input_device,
uint32_t time, int32_t sx, int32_t sy)
{
struct input *input = data;
struct window *window = input->pointer_focus;
struct widget *widget;
int pointer = POINTER_LEFT_PTR;
input->sx = sx;
input->sy = sy;
if (!(input->grab && input->grab_button)) {
widget = widget_find_widget(window->widget, sx, sy);
input_set_focus_widget(input, widget, sx, sy);
}
if (input->grab)
widget = input->grab;
else
widget = input->focus_widget;
if (widget && widget->motion_handler)
pointer = widget->motion_handler(input->focus_widget,
input, time, sx, sy,
widget->user_data);
input_set_pointer_image(input, time, pointer);
}
void
input_grab(struct input *input, struct widget *widget, uint32_t button)
{
input->grab = widget;
input->grab_button = button;
}
void
input_ungrab(struct input *input)
{
struct widget *widget;
input->grab = NULL;
if (input->pointer_focus) {
widget = widget_find_widget(input->pointer_focus->widget,
input->sx, input->sy);
input_set_focus_widget(input, widget, input->sx, input->sy);
}
}
static void
input_handle_button(void *data,
struct wl_input_device *input_device, uint32_t serial,
uint32_t time, uint32_t button, uint32_t state)
{
struct input *input = data;
struct widget *widget;
input->display->serial = serial;
if (input->focus_widget && input->grab == NULL && state)
input_grab(input, input->focus_widget, button);
widget = input->grab;
if (widget && widget->button_handler)
(*widget->button_handler)(widget,
input, time,
button, state,
input->grab->user_data);
if (input->grab && input->grab_button == button && !state)
input_ungrab(input);
}
static void
input_handle_axis(void *data,
struct wl_input_device *input_device,
uint32_t time, uint32_t axis, int32_t value)
{
}
static void
input_handle_key(void *data, struct wl_input_device *input_device,
uint32_t serial, uint32_t time, uint32_t key, uint32_t state)
{
struct input *input = data;
struct window *window = input->keyboard_focus;
struct display *d = input->display;
uint32_t code, sym, level;
input->display->serial = serial;
code = key + 8;
if (!window || window->keyboard_device != input)
return;
level = 0;
if (input->modifiers & XKB_COMMON_SHIFT_MASK &&
XkbKeyGroupWidth(d->xkb, code, 0) > 1)
level = 1;
sym = XkbKeySymEntry(d->xkb, code, level, 0);
if (state)
input->modifiers |= d->xkb->map->modmap[code];
else
input->modifiers &= ~d->xkb->map->modmap[code];
if (key == KEY_F5 && input->modifiers == Mod4Mask) {
if (state)
window_set_maximized(window,
window->type != TYPE_MAXIMIZED);
} else if (window->key_handler) {
(*window->key_handler)(window, input, time, key,
sym, state, window->user_data);
}
}
static void
input_remove_pointer_focus(struct input *input)
{
struct window *window = input->pointer_focus;
if (!window)
return;
input_set_focus_widget(input, NULL, 0, 0);
input->pointer_focus = NULL;
input->current_cursor = POINTER_UNSET;
}
static void
input_handle_pointer_enter(void *data,
struct wl_input_device *input_device,
uint32_t serial, struct wl_surface *surface,
int32_t sx, int32_t sy)
{
struct input *input = data;
struct window *window;
struct widget *widget;
input->display->serial = serial;
input->pointer_enter_serial = serial;
input->pointer_focus = wl_surface_get_user_data(surface);
window = input->pointer_focus;
if (window->pool) {
wl_shm_pool_destroy(window->pool);
munmap(window->pool_data, window->pool_size);
window->pool = NULL;
/* Schedule a redraw to free the pool */
window_schedule_redraw(window);
}
input->sx = sx;
input->sy = sy;
widget = widget_find_widget(window->widget, sx, sy);
input_set_focus_widget(input, widget, sx, sy);
}
static void
input_handle_pointer_leave(void *data,
struct wl_input_device *input_device,
uint32_t serial, struct wl_surface *surface)
{
struct input *input = data;
input->display->serial = serial;
input_remove_pointer_focus(input);
}
static void
input_remove_keyboard_focus(struct input *input)
{
struct window *window = input->keyboard_focus;
if (!window)
return;
window->keyboard_device = NULL;
if (window->keyboard_focus_handler)
(*window->keyboard_focus_handler)(window, NULL,
window->user_data);
input->keyboard_focus = NULL;
}
static void
input_handle_keyboard_enter(void *data,
struct wl_input_device *input_device,
uint32_t serial,
struct wl_surface *surface,
struct wl_array *keys)
{
struct input *input = data;
struct window *window;
struct display *d = input->display;
uint32_t *k, *end;
input->display->serial = serial;
input->keyboard_focus = wl_surface_get_user_data(surface);
end = keys->data + keys->size;
input->modifiers = 0;
for (k = keys->data; k < end; k++)
input->modifiers |= d->xkb->map->modmap[*k];
window = input->keyboard_focus;
window->keyboard_device = input;
if (window->keyboard_focus_handler)
(*window->keyboard_focus_handler)(window,
window->keyboard_device,
window->user_data);
}
static void
input_handle_keyboard_leave(void *data,
struct wl_input_device *input_device,
uint32_t serial,
struct wl_surface *surface)
{
struct input *input = data;
input->display->serial = serial;
input_remove_keyboard_focus(input);
}
static void
input_handle_touch_down(void *data,
struct wl_input_device *wl_input_device,
uint32_t serial, uint32_t time,
struct wl_surface *surface,
int32_t id, int32_t x, int32_t y)
{
}
static void
input_handle_touch_up(void *data,
struct wl_input_device *wl_input_device,
uint32_t serial, uint32_t time, int32_t id)
{
}
static void
input_handle_touch_motion(void *data,
struct wl_input_device *wl_input_device,
uint32_t time, int32_t id, int32_t x, int32_t y)
{
}
static void
input_handle_touch_frame(void *data,
struct wl_input_device *wl_input_device)
{
}
static void
input_handle_touch_cancel(void *data,
struct wl_input_device *wl_input_device)
{
}
static const struct wl_input_device_listener input_device_listener = {
input_handle_motion,
input_handle_button,
input_handle_axis,
input_handle_key,
input_handle_pointer_enter,
input_handle_pointer_leave,
input_handle_keyboard_enter,
input_handle_keyboard_leave,
input_handle_touch_down,
input_handle_touch_up,
input_handle_touch_motion,
input_handle_touch_frame,
input_handle_touch_cancel,
};
void
input_get_position(struct input *input, int32_t *x, int32_t *y)
{
*x = input->sx;
*y = input->sy;
}
struct wl_input_device *
input_get_input_device(struct input *input)
{
return input->input_device;
}
uint32_t
input_get_modifiers(struct input *input)
{
return input->modifiers;
}
struct widget *
input_get_focus_widget(struct input *input)
{
return input->focus_widget;
}
struct data_offer {
struct wl_data_offer *offer;
struct input *input;
struct wl_array types;
int refcount;
struct task io_task;
int fd;
data_func_t func;
int32_t x, y;
void *user_data;
};
static void
data_offer_offer(void *data, struct wl_data_offer *wl_data_offer, const char *type)
{
struct data_offer *offer = data;
char **p;
p = wl_array_add(&offer->types, sizeof *p);
*p = strdup(type);
}
static const struct wl_data_offer_listener data_offer_listener = {
data_offer_offer,
};
static void
data_offer_destroy(struct data_offer *offer)
{
char **p;
offer->refcount--;
if (offer->refcount == 0) {
wl_data_offer_destroy(offer->offer);
for (p = offer->types.data; *p; p++)
free(*p);
wl_array_release(&offer->types);
free(offer);
}
}
static void
data_device_data_offer(void *data,
struct wl_data_device *data_device, uint32_t id)
{
struct data_offer *offer;
offer = malloc(sizeof *offer);
wl_array_init(&offer->types);
offer->refcount = 1;
offer->input = data;
/* FIXME: Generate typesafe wrappers for this */
offer->offer = (struct wl_data_offer *)
wl_proxy_create_for_id((struct wl_proxy *) data_device,
id, &wl_data_offer_interface);
wl_data_offer_add_listener(offer->offer,
&data_offer_listener, offer);
}
static void
data_device_enter(void *data, struct wl_data_device *data_device,
uint32_t serial, struct wl_surface *surface,
int32_t x, int32_t y, struct wl_data_offer *offer)
{
struct input *input = data;
struct window *window;
char **p;
input->pointer_enter_serial = serial;
input->drag_offer = wl_data_offer_get_user_data(offer);
window = wl_surface_get_user_data(surface);
input->pointer_focus = window;
p = wl_array_add(&input->drag_offer->types, sizeof *p);
*p = NULL;
window = input->pointer_focus;
if (window->data_handler)
window->data_handler(window, input, x, y,
input->drag_offer->types.data,
window->user_data);
}
static void
data_device_leave(void *data, struct wl_data_device *data_device)
{
struct input *input = data;
data_offer_destroy(input->drag_offer);
input->drag_offer = NULL;
}
static void
data_device_motion(void *data, struct wl_data_device *data_device,
uint32_t time, int32_t x, int32_t y)
{
struct input *input = data;
struct window *window = input->pointer_focus;
input->sx = x;
input->sy = y;
if (window->data_handler)
window->data_handler(window, input, x, y,
input->drag_offer->types.data,
window->user_data);
}
static void
data_device_drop(void *data, struct wl_data_device *data_device)
{
struct input *input = data;
struct window *window = input->pointer_focus;
if (window->drop_handler)
window->drop_handler(window, input,
input->sx, input->sy, window->user_data);
}
static void
data_device_selection(void *data,
struct wl_data_device *wl_data_device,
struct wl_data_offer *offer)
{
struct input *input = data;
char **p;
if (input->selection_offer)
data_offer_destroy(input->selection_offer);
if (offer) {
input->selection_offer = wl_data_offer_get_user_data(offer);
p = wl_array_add(&input->selection_offer->types, sizeof *p);
*p = NULL;
}
}
static const struct wl_data_device_listener data_device_listener = {
data_device_data_offer,
data_device_enter,
data_device_leave,
data_device_motion,
data_device_drop,
data_device_selection
};
void
input_set_pointer_image(struct input *input, uint32_t time, int pointer)
{
struct display *display = input->display;
struct wl_buffer *buffer;
struct cursor_image *image;
if (pointer == input->current_cursor)
return;
image = &display->cursors[pointer].images[0];
if (!image->surface)
return;
input->current_cursor = pointer;
buffer = display_get_buffer_for_surface(display, image->surface);
wl_input_device_attach(input->input_device, time, buffer,
image->hotspot_x, image->hotspot_y);
}
struct wl_data_device *
input_get_data_device(struct input *input)
{
return input->data_device;
}
void
input_set_selection(struct input *input,
struct wl_data_source *source, uint32_t time)
{
wl_data_device_set_selection(input->data_device, source, time);
}
void
input_accept(struct input *input, const char *type)
{
wl_data_offer_accept(input->drag_offer->offer,
input->pointer_enter_serial, type);
}
static void
offer_io_func(struct task *task, uint32_t events)
{
struct data_offer *offer =
container_of(task, struct data_offer, io_task);
unsigned int len;
char buffer[4096];
len = read(offer->fd, buffer, sizeof buffer);
offer->func(buffer, len,
offer->x, offer->y, offer->user_data);
if (len == 0) {
close(offer->fd);
data_offer_destroy(offer);
}
}
static void
data_offer_receive_data(struct data_offer *offer, const char *mime_type,
data_func_t func, void *user_data)
{
int p[2];
if (pipe2(p, O_CLOEXEC) == -1)
return;
wl_data_offer_receive(offer->offer, mime_type, p[1]);
close(p[1]);
offer->io_task.run = offer_io_func;
offer->fd = p[0];
offer->func = func;
offer->refcount++;
offer->user_data = user_data;
display_watch_fd(offer->input->display,
offer->fd, EPOLLIN, &offer->io_task);
}
void
input_receive_drag_data(struct input *input, const char *mime_type,
data_func_t func, void *data)
{
data_offer_receive_data(input->drag_offer, mime_type, func, data);
input->drag_offer->x = input->sx;
input->drag_offer->y = input->sy;
}
int
input_receive_selection_data(struct input *input, const char *mime_type,
data_func_t func, void *data)
{
char **p;
if (input->selection_offer == NULL)
return -1;
for (p = input->selection_offer->types.data; *p; p++)
if (strcmp(mime_type, *p) == 0)
break;
if (*p == NULL)
return -1;
data_offer_receive_data(input->selection_offer,
mime_type, func, data);
return 0;
}
int
input_receive_selection_data_to_fd(struct input *input,
const char *mime_type, int fd)
{
wl_data_offer_receive(input->selection_offer->offer, mime_type, fd);
return 0;
}
void
window_move(struct window *window, struct input *input, uint32_t serial)
{
if (!window->shell_surface)
return;
wl_shell_surface_move(window->shell_surface,
input->input_device, serial);
}
static void
idle_resize(struct window *window)
{
struct widget *widget;
window->resize_needed = 0;
widget = window->widget;
widget_set_allocation(widget,
window->pending_allocation.x,
window->pending_allocation.y,
window->pending_allocation.width,
window->pending_allocation.height);
if (window->input_region) {
wl_region_destroy(window->input_region);
window->input_region = NULL;
}
if (window->opaque_region) {
wl_region_destroy(window->opaque_region);
window->opaque_region = NULL;
}
if (widget->resize_handler)
widget->resize_handler(widget,
widget->allocation.width,
widget->allocation.height,
widget->user_data);
if (window->allocation.width != widget->allocation.width ||
window->allocation.height != widget->allocation.height) {
window->allocation = widget->allocation;
window_schedule_redraw(window);
}
}
void
window_schedule_resize(struct window *window, int width, int height)
{
window->pending_allocation.x = 0;
window->pending_allocation.y = 0;
window->pending_allocation.width = width;
window->pending_allocation.height = height;
window->resize_needed = 1;
window_schedule_redraw(window);
}
void
widget_schedule_resize(struct widget *widget, int32_t width, int32_t height)
{
window_schedule_resize(widget->window, width, height);
}
static void
handle_ping(void *data, struct wl_shell_surface *shell_surface,
uint32_t serial)
{
wl_shell_surface_pong(shell_surface, serial);
}
static void
handle_configure(void *data, struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
struct window *window = data;
if (width <= 0 || height <= 0)
return;
window->resize_edges = edges;
window_schedule_resize(window, width, height);
}
static void
menu_destroy(struct menu *menu)
{
widget_destroy(menu->widget);
window_destroy(menu->window);
free(menu);
}
static void
handle_popup_done(void *data, struct wl_shell_surface *shell_surface)
{
struct window *window = data;
struct menu *menu = window->widget->user_data;
/* FIXME: Need more context in this event, at least the input
* device. Or just use wl_callback. And this really needs to
* be a window vfunc that the menu can set. And we need the
* time. */
menu->func(window->parent, menu->current, window->parent->user_data);
input_ungrab(menu->input);
menu_destroy(menu);
}
static const struct wl_shell_surface_listener shell_surface_listener = {
handle_ping,
handle_configure,
handle_popup_done
};
void
window_get_allocation(struct window *window,
struct rectangle *allocation)
{
*allocation = window->allocation;
}
static void
widget_redraw(struct widget *widget)
{
struct widget *child;
if (widget->redraw_handler)
widget->redraw_handler(widget, widget->user_data);
wl_list_for_each(child, &widget->child_list, link)
widget_redraw(child);
}
static void
frame_callback(void *data, struct wl_callback *callback, uint32_t time)
{
struct window *window = data;
wl_callback_destroy(callback);
window->redraw_scheduled = 0;
if (window->redraw_needed)
window_schedule_redraw(window);
}
static const struct wl_callback_listener listener = {
frame_callback
};
static void
idle_redraw(struct task *task, uint32_t events)
{
struct window *window = container_of(task, struct window, redraw_task);
struct wl_callback *callback;
if (window->resize_needed)
idle_resize(window);
window_create_surface(window);
widget_redraw(window->widget);
window_flush(window);
window->redraw_needed = 0;
wl_list_init(&window->redraw_task.link);
callback = wl_surface_frame(window->surface);
wl_callback_add_listener(callback, &listener, window);
}
void
window_schedule_redraw(struct window *window)
{
window->redraw_needed = 1;
if (!window->redraw_scheduled) {
window->redraw_task.run = idle_redraw;
display_defer(window->display, &window->redraw_task);
window->redraw_scheduled = 1;
}
}
void
window_set_custom(struct window *window)
{
window->type = TYPE_CUSTOM;
}
void
window_set_fullscreen(struct window *window, int fullscreen)
{
if (!window->display->shell)
return;
if ((window->type == TYPE_FULLSCREEN) == fullscreen)
return;
if (fullscreen) {
window->type = TYPE_FULLSCREEN;
window->saved_allocation = window->allocation;
wl_shell_surface_set_fullscreen(window->shell_surface,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
0, NULL);
} else {
window->type = TYPE_TOPLEVEL;
wl_shell_surface_set_toplevel(window->shell_surface);
window_schedule_resize(window,
window->saved_allocation.width,
window->saved_allocation.height);
}
}
void
window_set_maximized(struct window *window, int maximized)
{
if (!window->display->shell)
return;
if ((window->type == TYPE_MAXIMIZED) == maximized)
return;
if (window->type == TYPE_TOPLEVEL) {
window->saved_allocation = window->allocation;
wl_shell_surface_set_maximized(window->shell_surface, NULL);
window->type = TYPE_MAXIMIZED;
} else {
wl_shell_surface_set_toplevel(window->shell_surface);
window->type = TYPE_TOPLEVEL;
window_schedule_resize(window,
window->saved_allocation.width,
window->saved_allocation.height);
}
}
void
window_set_user_data(struct window *window, void *data)
{
window->user_data = data;
}
void *
window_get_user_data(struct window *window)
{
return window->user_data;
}
void
window_set_key_handler(struct window *window,
window_key_handler_t handler)
{
window->key_handler = handler;
}
void
window_set_keyboard_focus_handler(struct window *window,
window_keyboard_focus_handler_t handler)
{
window->keyboard_focus_handler = handler;
}
void
window_set_data_handler(struct window *window, window_data_handler_t handler)
{
window->data_handler = handler;
}
void
window_set_drop_handler(struct window *window, window_drop_handler_t handler)
{
window->drop_handler = handler;
}
void
window_set_close_handler(struct window *window,
window_close_handler_t handler)
{
window->close_handler = handler;
}
void
window_set_title(struct window *window, const char *title)
{
free(window->title);
window->title = strdup(title);
if (window->shell_surface)
wl_shell_surface_set_title(window->shell_surface, title);
}
const char *
window_get_title(struct window *window)
{
return window->title;
}
void
window_damage(struct window *window, int32_t x, int32_t y,
int32_t width, int32_t height)
{
wl_surface_damage(window->surface, x, y, width, height);
}
static void
surface_enter(void *data,
struct wl_surface *wl_surface, struct wl_output *output)
{
}
static void
surface_leave(void *data,
struct wl_surface *wl_surface, struct wl_output *output)
{
}
static const struct wl_surface_listener surface_listener = {
surface_enter,
surface_leave
};
static struct window *
window_create_internal(struct display *display, struct window *parent)
{
struct window *window;
window = malloc(sizeof *window);
if (window == NULL)
return NULL;
memset(window, 0, sizeof *window);
window->display = display;
window->parent = parent;
window->surface = wl_compositor_create_surface(display->compositor);
wl_surface_add_listener(window->surface, &surface_listener, window);
if (display->shell) {
window->shell_surface =
wl_shell_get_shell_surface(display->shell,
window->surface);
if (window->title)
wl_shell_surface_set_title(window->shell_surface,
window->title);
}
window->allocation.x = 0;
window->allocation.y = 0;
window->allocation.width = 0;
window->allocation.height = 0;
window->saved_allocation = window->allocation;
window->transparent = 1;
window->type = TYPE_NONE;
window->input_region = NULL;
window->opaque_region = NULL;
if (display->dpy)
#ifdef HAVE_CAIRO_EGL
window->buffer_type = WINDOW_BUFFER_TYPE_EGL_WINDOW;
#else
window->buffer_type = WINDOW_BUFFER_TYPE_SHM;
#endif
else
window->buffer_type = WINDOW_BUFFER_TYPE_SHM;
wl_surface_set_user_data(window->surface, window);
wl_list_insert(display->window_list.prev, &window->link);
wl_list_init(&window->redraw_task.link);
if (window->shell_surface) {
wl_shell_surface_set_user_data(window->shell_surface, window);
wl_shell_surface_add_listener(window->shell_surface,
&shell_surface_listener, window);
}
return window;
}
struct window *
window_create(struct display *display)
{
struct window *window;
window = window_create_internal(display, NULL);
if (!window)
return NULL;
return window;
}
struct window *
window_create_transient(struct display *display, struct window *parent,
int32_t x, int32_t y)
{
struct window *window;
window = window_create_internal(parent->display, parent);
if (!window)
return NULL;
window->type = TYPE_TRANSIENT;
window->x = x;
window->y = y;
if (display->shell)
wl_shell_surface_set_transient(window->shell_surface,
window->parent->shell_surface,
window->x, window->y, 0);
return window;
}
static void
menu_set_item(struct menu *menu, int sy)
{
int next;
next = (sy - 8) / 20;
if (menu->current != next) {
menu->current = next;
widget_schedule_redraw(menu->widget);
}
}
static int
menu_motion_handler(struct widget *widget,
struct input *input, uint32_t time,
int32_t x, int32_t y, void *data)
{
struct menu *menu = data;
if (widget == menu->widget)
menu_set_item(data, y);
return POINTER_LEFT_PTR;
}
static int
menu_enter_handler(struct widget *widget,
struct input *input, int32_t x, int32_t y, void *data)
{
struct menu *menu = data;
if (widget == menu->widget)
menu_set_item(data, y);
return POINTER_LEFT_PTR;
}
static void
menu_leave_handler(struct widget *widget, struct input *input, void *data)
{
struct menu *menu = data;
if (widget == menu->widget)
menu_set_item(data, -200);
}
static void
menu_button_handler(struct widget *widget,
struct input *input, uint32_t time,
int button, int state, void *data)
{
struct menu *menu = data;
if (state == 0 && time - menu->time > 500) {
/* Either relase after press-drag-release or
* click-motion-click. */
menu->func(menu->window->parent,
menu->current, menu->window->parent->user_data);
input_ungrab(input);
menu_destroy(menu);
}
}
static void
menu_redraw_handler(struct widget *widget, void *data)
{
cairo_t *cr;
const int32_t r = 3, margin = 3;
struct menu *menu = data;
int32_t width, height, i;
struct window *window = widget->window;
cr = cairo_create(window->cairo_surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
cairo_paint(cr);
width = window->allocation.width;
height = window->allocation.height;
rounded_rect(cr, 0, 0, width, height, r);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba(cr, 0.0, 0.0, 0.4, 0.8);
cairo_fill(cr);
for (i = 0; i < menu->count; i++) {
if (i == menu->current) {
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
cairo_rectangle(cr, margin, i * 20 + margin,
width - 2 * margin, 20);
cairo_fill(cr);
cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
cairo_move_to(cr, 10, i * 20 + 16);
cairo_show_text(cr, menu->entries[i]);
} else {
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
cairo_move_to(cr, 10, i * 20 + 16);
cairo_show_text(cr, menu->entries[i]);
}
}
cairo_destroy(cr);
}
void
window_show_menu(struct display *display,
struct input *input, uint32_t time, struct window *parent,
int32_t x, int32_t y,
menu_func_t func, const char **entries, int count)
{
struct window *window;
struct menu *menu;
const int32_t margin = 3;
menu = malloc(sizeof *menu);
if (!menu)
return;
window = window_create_internal(parent->display, parent);
if (!window)
return;
menu->window = window;
menu->widget = window_add_widget(menu->window, menu);
menu->entries = entries;
menu->count = count;
menu->current = -1;
menu->time = time;
menu->func = func;
menu->input = input;
window->type = TYPE_MENU;
window->x = x;
window->y = y;
input_ungrab(input);
wl_shell_surface_set_popup(window->shell_surface, input->input_device,
display_get_serial(window->display),
window->parent->shell_surface,
window->x, window->y, 0);
widget_set_redraw_handler(menu->widget, menu_redraw_handler);
widget_set_enter_handler(menu->widget, menu_enter_handler);
widget_set_leave_handler(menu->widget, menu_leave_handler);
widget_set_motion_handler(menu->widget, menu_motion_handler);
widget_set_button_handler(menu->widget, menu_button_handler);
input_grab(input, menu->widget, 0);
window_schedule_resize(window, 200, count * 20 + margin * 2);
}
void
window_set_buffer_type(struct window *window, enum window_buffer_type type)
{
window->buffer_type = type;
}
static void
display_handle_geometry(void *data,
struct wl_output *wl_output,
int x, int y,
int physical_width,
int physical_height,
int subpixel,
const char *make,
const char *model)
{
struct output *output = data;
output->allocation.x = x;
output->allocation.y = y;
}
static void
display_handle_mode(void *data,
struct wl_output *wl_output,
uint32_t flags,
int width,
int height,
int refresh)
{
struct output *output = data;
struct display *display = output->display;
if (flags & WL_OUTPUT_MODE_CURRENT) {
output->allocation.width = width;
output->allocation.height = height;
if (display->output_configure_handler)
(*display->output_configure_handler)(
output, display->user_data);
}
}
static const struct wl_output_listener output_listener = {
display_handle_geometry,
display_handle_mode
};
static void
display_add_output(struct display *d, uint32_t id)
{
struct output *output;
output = malloc(sizeof *output);
if (output == NULL)
return;
memset(output, 0, sizeof *output);
output->display = d;
output->output =
wl_display_bind(d->display, id, &wl_output_interface);
wl_list_insert(d->output_list.prev, &output->link);
wl_output_add_listener(output->output, &output_listener, output);
}
static void
output_destroy(struct output *output)
{
if (output->destroy_handler)
(*output->destroy_handler)(output, output->user_data);
wl_output_destroy(output->output);
wl_list_remove(&output->link);
free(output);
}
void
display_set_output_configure_handler(struct display *display,
display_output_handler_t handler)
{
struct output *output;
display->output_configure_handler = handler;
if (!handler)
return;
wl_list_for_each(output, &display->output_list, link)
(*display->output_configure_handler)(output,
display->user_data);
}
void
output_set_user_data(struct output *output, void *data)
{
output->user_data = data;
}
void *
output_get_user_data(struct output *output)
{
return output->user_data;
}
void
output_set_destroy_handler(struct output *output,
display_output_handler_t handler)
{
output->destroy_handler = handler;
/* FIXME: implement this, once we have way to remove outputs */
}
void
output_get_allocation(struct output *output, struct rectangle *allocation)
{
*allocation = output->allocation;
}
struct wl_output *
output_get_wl_output(struct output *output)
{
return output->output;
}
static void
display_add_input(struct display *d, uint32_t id)
{
struct input *input;
input = malloc(sizeof *input);
if (input == NULL)
return;
memset(input, 0, sizeof *input);
input->display = d;
input->input_device =
wl_display_bind(d->display, id, &wl_input_device_interface);
input->pointer_focus = NULL;
input->keyboard_focus = NULL;
wl_list_insert(d->input_list.prev, &input->link);
wl_input_device_add_listener(input->input_device,
&input_device_listener, input);
wl_input_device_set_user_data(input->input_device, input);
input->data_device =
wl_data_device_manager_get_data_device(d->data_device_manager,
input->input_device);
wl_data_device_add_listener(input->data_device,
&data_device_listener, input);
}
static void
input_destroy(struct input *input)
{
input_remove_keyboard_focus(input);
input_remove_pointer_focus(input);
if (input->drag_offer)
data_offer_destroy(input->drag_offer);
if (input->selection_offer)
data_offer_destroy(input->selection_offer);
wl_data_device_destroy(input->data_device);
wl_list_remove(&input->link);
wl_input_device_destroy(input->input_device);
free(input);
}
static void
display_handle_global(struct wl_display *display, uint32_t id,
const char *interface, uint32_t version, void *data)
{
struct display *d = data;
if (strcmp(interface, "wl_compositor") == 0) {
d->compositor =
wl_display_bind(display, id, &wl_compositor_interface);
} else if (strcmp(interface, "wl_output") == 0) {
display_add_output(d, id);
} else if (strcmp(interface, "wl_input_device") == 0) {
display_add_input(d, id);
} else if (strcmp(interface, "wl_shell") == 0) {
d->shell = wl_display_bind(display, id, &wl_shell_interface);
} else if (strcmp(interface, "wl_shm") == 0) {
d->shm = wl_display_bind(display, id, &wl_shm_interface);
} else if (strcmp(interface, "wl_data_device_manager") == 0) {
d->data_device_manager =
wl_display_bind(display, id,
&wl_data_device_manager_interface);
}
}
static void
display_render_frame(struct display *d)
{
cairo_t *cr;
cairo_pattern_t *pattern;
d->frame_radius = 3;
d->shadow = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
cr = cairo_create(d->shadow);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba(cr, 0, 0, 0, 1);
rounded_rect(cr, 32, 32, 96, 96, d->frame_radius);
cairo_fill(cr);
cairo_destroy(cr);
blur_surface(d->shadow, 64);
d->active_frame =
cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
cr = cairo_create(d->active_frame);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
pattern = cairo_pattern_create_linear(16, 16, 16, 112);
cairo_pattern_add_color_stop_rgb(pattern, 0.0, 1.0, 1.0, 1.0);
cairo_pattern_add_color_stop_rgb(pattern, 0.2, 0.8, 0.8, 0.8);
cairo_set_source(cr, pattern);
cairo_pattern_destroy(pattern);
rounded_rect(cr, 0, 0, 128, 128, d->frame_radius);
cairo_fill(cr);
cairo_destroy(cr);
d->inactive_frame =
cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
cr = cairo_create(d->inactive_frame);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba(cr, 0.75, 0.75, 0.75, 1);
rounded_rect(cr, 0, 0, 128, 128, d->frame_radius);
cairo_fill(cr);
cairo_destroy(cr);
}
static void
init_xkb(struct display *d)
{
struct xkb_rule_names names;
names.rules = "evdev";
names.model = "pc105";
names.layout = option_xkb_layout;
names.variant = option_xkb_variant;
names.options = option_xkb_options;
d->xkb = xkb_compile_keymap_from_rules(&names);
if (!d->xkb) {
fprintf(stderr, "Failed to compile keymap\n");
exit(1);
}
}
static void
fini_xkb(struct display *display)
{
xkb_free_keymap(display->xkb);
}
#ifdef HAVE_CAIRO_EGL
static int
init_egl(struct display *d)
{
EGLint major, minor;
EGLint n;
#ifdef USE_CAIRO_GLESV2
# define GL_BIT EGL_OPENGL_ES2_BIT
#else
# define GL_BIT EGL_OPENGL_BIT
#endif
static const EGLint argb_cfg_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT | EGL_PIXMAP_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, 1,
EGL_DEPTH_SIZE, 1,
EGL_RENDERABLE_TYPE, GL_BIT,
EGL_NONE
};
#ifdef USE_CAIRO_GLESV2
static const EGLint context_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
EGLint api = EGL_OPENGL_ES_API;
#else
EGLint *context_attribs = NULL;
EGLint api = EGL_OPENGL_API;
#endif
d->dpy = eglGetDisplay(d->display);
if (!eglInitialize(d->dpy, &major, &minor)) {
fprintf(stderr, "failed to initialize display\n");
return -1;
}
if (!eglBindAPI(api)) {
fprintf(stderr, "failed to bind api EGL_OPENGL_API\n");
return -1;
}
if (!eglChooseConfig(d->dpy, argb_cfg_attribs,
&d->argb_config, 1, &n) || n != 1) {
fprintf(stderr, "failed to choose argb config\n");
return -1;
}
d->argb_ctx = eglCreateContext(d->dpy, d->argb_config,
EGL_NO_CONTEXT, context_attribs);
if (d->argb_ctx == NULL) {
fprintf(stderr, "failed to create context\n");
return -1;
}
if (!eglMakeCurrent(d->dpy, NULL, NULL, d->argb_ctx)) {
fprintf(stderr, "failed to make context current\n");
return -1;
}
#ifdef HAVE_CAIRO_EGL
d->argb_device = cairo_egl_device_create(d->dpy, d->argb_ctx);
if (cairo_device_status(d->argb_device) != CAIRO_STATUS_SUCCESS) {
fprintf(stderr, "failed to get cairo egl argb device\n");
return -1;
}
#endif
return 0;
}
static void
fini_egl(struct display *display)
{
#ifdef HAVE_CAIRO_EGL
cairo_device_destroy(display->argb_device);
#endif
eglMakeCurrent(display->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
eglTerminate(display->dpy);
eglReleaseThread();
}
#endif
static int
event_mask_update(uint32_t mask, void *data)
{
struct display *d = data;
d->mask = mask;
return 0;
}
static void
handle_display_data(struct task *task, uint32_t events)
{
struct display *display =
container_of(task, struct display, display_task);
wl_display_iterate(display->display, display->mask);
}
struct display *
display_create(int argc, char *argv[])
{
struct display *d;
argc = parse_options(xkb_options,
ARRAY_LENGTH(xkb_options), argc, argv);
d = malloc(sizeof *d);
if (d == NULL)
return NULL;
memset(d, 0, sizeof *d);
d->display = wl_display_connect(NULL);
if (d->display == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return NULL;
}
d->epoll_fd = epoll_create1(EPOLL_CLOEXEC);
d->display_fd = wl_display_get_fd(d->display, event_mask_update, d);
d->display_task.run = handle_display_data;
display_watch_fd(d, d->display_fd, EPOLLIN, &d->display_task);
wl_list_init(&d->deferred_list);
wl_list_init(&d->input_list);
wl_list_init(&d->output_list);
/* Set up listener so we'll catch all events. */
wl_display_add_global_listener(d->display,
display_handle_global, d);
/* Process connection events. */
wl_display_iterate(d->display, WL_DISPLAY_READABLE);
#ifdef HAVE_CAIRO_EGL
if (init_egl(d) < 0)
return NULL;
#endif
d->image_target_texture_2d =
(void *) eglGetProcAddress("glEGLImageTargetTexture2DOES");
d->create_image = (void *) eglGetProcAddress("eglCreateImageKHR");
d->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR");
create_cursors(d);
display_render_frame(d);
wl_list_init(&d->window_list);
init_xkb(d);
return d;
}
static void
display_destroy_outputs(struct display *display)
{
struct output *tmp;
struct output *output;
wl_list_for_each_safe(output, tmp, &display->output_list, link)
output_destroy(output);
}
static void
display_destroy_inputs(struct display *display)
{
struct input *tmp;
struct input *input;
wl_list_for_each_safe(input, tmp, &display->input_list, link)
input_destroy(input);
}
void
display_destroy(struct display *display)
{
if (!wl_list_empty(&display->window_list))
fprintf(stderr, "toytoolkit warning: windows exist.\n");
if (!wl_list_empty(&display->deferred_list))
fprintf(stderr, "toytoolkit warning: deferred tasks exist.\n");
display_destroy_outputs(display);
display_destroy_inputs(display);
fini_xkb(display);
cairo_surface_destroy(display->active_frame);
cairo_surface_destroy(display->inactive_frame);
cairo_surface_destroy(display->shadow);
destroy_cursors(display);
#ifdef HAVE_CAIRO_EGL
fini_egl(display);
#endif
if (display->shell)
wl_shell_destroy(display->shell);
if (display->shm)
wl_shm_destroy(display->shm);
if (display->data_device_manager)
wl_data_device_manager_destroy(display->data_device_manager);
wl_compositor_destroy(display->compositor);
close(display->epoll_fd);
wl_display_flush(display->display);
wl_display_disconnect(display->display);
free(display);
}
void
display_set_user_data(struct display *display, void *data)
{
display->user_data = data;
}
void *
display_get_user_data(struct display *display)
{
return display->user_data;
}
struct wl_display *
display_get_display(struct display *display)
{
return display->display;
}
struct output *
display_get_output(struct display *display)
{
return container_of(display->output_list.next, struct output, link);
}
struct wl_compositor *
display_get_compositor(struct display *display)
{
return display->compositor;
}
uint32_t
display_get_serial(struct display *display)
{
return display->serial;
}
EGLDisplay
display_get_egl_display(struct display *d)
{
return d->dpy;
}
struct wl_data_source *
display_create_data_source(struct display *display)
{
return wl_data_device_manager_create_data_source(display->data_device_manager);
}
EGLConfig
display_get_argb_egl_config(struct display *d)
{
return d->argb_config;
}
struct wl_shell *
display_get_shell(struct display *display)
{
return display->shell;
}
int
display_acquire_window_surface(struct display *display,
struct window *window,
EGLContext ctx)
{
#ifdef HAVE_CAIRO_EGL
struct egl_window_surface_data *data;
cairo_device_t *device;
if (!window->cairo_surface)
return -1;
device = cairo_surface_get_device(window->cairo_surface);
if (!device)
return -1;
if (!ctx) {
if (device == display->argb_device)
ctx = display->argb_ctx;
else
assert(0);
}
data = cairo_surface_get_user_data(window->cairo_surface,
&surface_data_key);
cairo_device_flush(device);
cairo_device_acquire(device);
if (!eglMakeCurrent(display->dpy, data->surf, data->surf, ctx))
fprintf(stderr, "failed to make surface current\n");
return 0;
#else
return -1;
#endif
}
void
display_release_window_surface(struct display *display,
struct window *window)
{
#ifdef HAVE_CAIRO_EGL
cairo_device_t *device;
device = cairo_surface_get_device(window->cairo_surface);
if (!device)
return;
if (!eglMakeCurrent(display->dpy, NULL, NULL, display->argb_ctx))
fprintf(stderr, "failed to make context current\n");
cairo_device_release(device);
#endif
}
void
display_defer(struct display *display, struct task *task)
{
wl_list_insert(&display->deferred_list, &task->link);
}
void
display_watch_fd(struct display *display,
int fd, uint32_t events, struct task *task)
{
struct epoll_event ep;
ep.events = events;
ep.data.ptr = task;
epoll_ctl(display->epoll_fd, EPOLL_CTL_ADD, fd, &ep);
}
void
display_run(struct display *display)
{
struct task *task;
struct epoll_event ep[16];
int i, count;
display->running = 1;
while (1) {
wl_display_flush(display->display);
while (!wl_list_empty(&display->deferred_list)) {
task = container_of(display->deferred_list.next,
struct task, link);
wl_list_remove(&task->link);
task->run(task, 0);
}
if (!display->running)
break;
wl_display_flush(display->display);
count = epoll_wait(display->epoll_fd,
ep, ARRAY_LENGTH(ep), -1);
for (i = 0; i < count; i++) {
task = ep[i].data.ptr;
task->run(task, ep[i].events);
}
}
}
void
display_exit(struct display *display)
{
display->running = 0;
}
Reference in New Issue View Git Blame Copy Permalink