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/*
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* Copyright © 2011 Kristian Høgsberg
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdio.h>
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Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
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#include <assert.h>
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#include "compositor.h"
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struct weston_drag {
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struct wl_client *client;
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struct weston_data_source *data_source;
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struct wl_listener data_source_listener;
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Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
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struct weston_view *focus;
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struct wl_resource *focus_resource;
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struct wl_listener focus_listener;
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Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
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struct weston_view *icon;
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struct wl_listener icon_destroy_listener;
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int32_t dx, dy;
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};
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struct weston_pointer_drag {
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struct weston_drag base;
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struct weston_pointer_grab grab;
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};
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struct weston_touch_drag {
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struct weston_drag base;
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struct weston_touch_grab grab;
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};
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static void
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empty_region(pixman_region32_t *region)
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{
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pixman_region32_fini(region);
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pixman_region32_init(region);
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}
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static void
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data_offer_accept(struct wl_client *client, struct wl_resource *resource,
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uint32_t serial, const char *mime_type)
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{
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struct weston_data_offer *offer = wl_resource_get_user_data(resource);
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/* FIXME: Check that client is currently focused by the input
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* device that is currently dragging this data source. Should
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* this be a wl_data_device request? */
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if (offer->source)
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offer->source->accept(offer->source, serial, mime_type);
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}
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static void
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data_offer_receive(struct wl_client *client, struct wl_resource *resource,
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const char *mime_type, int32_t fd)
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{
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struct weston_data_offer *offer = wl_resource_get_user_data(resource);
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if (offer->source)
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offer->source->send(offer->source, mime_type, fd);
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else
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close(fd);
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}
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static void
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data_offer_destroy(struct wl_client *client, struct wl_resource *resource)
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{
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wl_resource_destroy(resource);
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}
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static const struct wl_data_offer_interface data_offer_interface = {
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data_offer_accept,
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data_offer_receive,
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data_offer_destroy,
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};
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static void
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destroy_data_offer(struct wl_resource *resource)
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{
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struct weston_data_offer *offer = wl_resource_get_user_data(resource);
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if (offer->source)
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wl_list_remove(&offer->source_destroy_listener.link);
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free(offer);
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}
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static void
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destroy_offer_data_source(struct wl_listener *listener, void *data)
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{
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struct weston_data_offer *offer;
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offer = container_of(listener, struct weston_data_offer,
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source_destroy_listener);
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offer->source = NULL;
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}
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static struct wl_resource *
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weston_data_source_send_offer(struct weston_data_source *source,
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struct wl_resource *target)
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{
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struct weston_data_offer *offer;
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char **p;
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offer = malloc(sizeof *offer);
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if (offer == NULL)
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return NULL;
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offer->resource =
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wl_resource_create(wl_resource_get_client(target),
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&wl_data_offer_interface, 1, 0);
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if (offer->resource == NULL) {
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free(offer);
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return NULL;
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}
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wl_resource_set_implementation(offer->resource, &data_offer_interface,
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offer, destroy_data_offer);
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offer->source = source;
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offer->source_destroy_listener.notify = destroy_offer_data_source;
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wl_signal_add(&source->destroy_signal,
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&offer->source_destroy_listener);
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wl_data_device_send_data_offer(target, offer->resource);
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wl_array_for_each(p, &source->mime_types)
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wl_data_offer_send_offer(offer->resource, *p);
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return offer->resource;
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}
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static void
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data_source_offer(struct wl_client *client,
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struct wl_resource *resource,
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const char *type)
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{
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struct weston_data_source *source =
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wl_resource_get_user_data(resource);
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char **p;
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p = wl_array_add(&source->mime_types, sizeof *p);
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if (p)
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*p = strdup(type);
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if (!p || !*p)
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wl_resource_post_no_memory(resource);
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}
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static void
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data_source_destroy(struct wl_client *client, struct wl_resource *resource)
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{
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wl_resource_destroy(resource);
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}
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static struct wl_data_source_interface data_source_interface = {
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data_source_offer,
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data_source_destroy
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};
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static void
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drag_surface_configure(struct weston_drag *drag,
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struct weston_pointer *pointer,
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struct weston_touch *touch,
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struct weston_surface *es, int32_t sx, int32_t sy,
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int32_t width, int32_t height)
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{
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struct wl_list *list;
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float fx, fy;
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assert((pointer != NULL && touch == NULL) ||
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(pointer == NULL && touch != NULL));
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
|
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if (!weston_surface_is_mapped(es) && es->buffer_ref.buffer) {
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if (pointer && pointer->sprite &&
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weston_view_is_mapped(pointer->sprite))
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list = &pointer->sprite->layer_link;
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else
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
list = &es->compositor->cursor_layer.view_list;
|
|
|
|
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
wl_list_remove(&drag->icon->layer_link);
|
|
|
|
wl_list_insert(list, &drag->icon->layer_link);
|
|
|
|
weston_view_update_transform(drag->icon);
|
|
|
|
empty_region(&es->pending.input);
|
|
|
|
}
|
|
|
|
|
|
|
|
drag->dx += sx;
|
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|
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drag->dy += sy;
|
|
|
|
|
|
|
|
/* init to 0 for avoiding a compile warning */
|
|
|
|
fx = fy = 0;
|
|
|
|
if (pointer) {
|
|
|
|
fx = wl_fixed_to_double(pointer->x) + drag->dx;
|
|
|
|
fy = wl_fixed_to_double(pointer->y) + drag->dy;
|
|
|
|
} else if (touch) {
|
|
|
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fx = wl_fixed_to_double(touch->grab_x) + drag->dx;
|
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|
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fy = wl_fixed_to_double(touch->grab_y) + drag->dy;
|
|
|
|
}
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
weston_view_configure(drag->icon, fx, fy, width, height);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
pointer_drag_surface_configure(struct weston_surface *es, int32_t sx, int32_t sy, int32_t width, int32_t height)
|
|
|
|
{
|
|
|
|
struct weston_pointer_drag *drag = es->configure_private;
|
|
|
|
struct weston_pointer *pointer = drag->grab.pointer;
|
|
|
|
|
|
|
|
assert(es->configure == pointer_drag_surface_configure);
|
|
|
|
|
|
|
|
drag_surface_configure(&drag->base, pointer, NULL, es, sx, sy, width, height);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
touch_drag_surface_configure(struct weston_surface *es, int32_t sx, int32_t sy, int32_t width, int32_t height)
|
|
|
|
{
|
|
|
|
struct weston_touch_drag *drag = es->configure_private;
|
|
|
|
struct weston_touch *touch = drag->grab.touch;
|
|
|
|
|
|
|
|
assert(es->configure == touch_drag_surface_configure);
|
|
|
|
|
|
|
|
drag_surface_configure(&drag->base, NULL, touch, es, sx, sy, width, height);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
destroy_drag_focus(struct wl_listener *listener, void *data)
|
|
|
|
{
|
|
|
|
struct weston_drag *drag =
|
|
|
|
container_of(listener, struct weston_drag, focus_listener);
|
|
|
|
|
|
|
|
drag->focus_resource = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
weston_drag_set_focus(struct weston_drag *drag,
|
|
|
|
struct weston_seat *seat,
|
|
|
|
struct weston_view *view,
|
|
|
|
wl_fixed_t sx, wl_fixed_t sy)
|
|
|
|
{
|
|
|
|
struct wl_resource *resource, *offer = NULL;
|
|
|
|
struct wl_display *display = seat->compositor->wl_display;
|
|
|
|
uint32_t serial;
|
|
|
|
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
if (drag->focus && view && drag->focus->surface == view->surface) {
|
|
|
|
drag->focus = view;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (drag->focus_resource) {
|
|
|
|
wl_data_device_send_leave(drag->focus_resource);
|
|
|
|
wl_list_remove(&drag->focus_listener.link);
|
|
|
|
drag->focus_resource = NULL;
|
|
|
|
drag->focus = NULL;
|
|
|
|
}
|
|
|
|
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
if (!view || !view->surface->resource)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (!drag->data_source &&
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
wl_resource_get_client(view->surface->resource) != drag->client)
|
|
|
|
return;
|
|
|
|
|
|
|
|
resource = wl_resource_find_for_client(&seat->drag_resource_list,
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
wl_resource_get_client(view->surface->resource));
|
|
|
|
if (!resource)
|
|
|
|
return;
|
|
|
|
|
|
|
|
serial = wl_display_next_serial(display);
|
|
|
|
|
|
|
|
if (drag->data_source) {
|
|
|
|
offer = weston_data_source_send_offer(drag->data_source,
|
|
|
|
resource);
|
|
|
|
if (offer == NULL)
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
wl_data_device_send_enter(resource, serial, view->surface->resource,
|
|
|
|
sx, sy, offer);
|
|
|
|
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
drag->focus = view;
|
|
|
|
drag->focus_listener.notify = destroy_drag_focus;
|
|
|
|
wl_resource_add_destroy_listener(resource, &drag->focus_listener);
|
|
|
|
drag->focus_resource = resource;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_focus(struct weston_pointer_grab *grab)
|
|
|
|
{
|
|
|
|
struct weston_pointer_drag *drag =
|
|
|
|
container_of(grab, struct weston_pointer_drag, grab);
|
|
|
|
struct weston_pointer *pointer = grab->pointer;
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
struct weston_view *view;
|
|
|
|
wl_fixed_t sx, sy;
|
|
|
|
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
view = weston_compositor_pick_view(pointer->seat->compositor,
|
|
|
|
pointer->x, pointer->y,
|
|
|
|
&sx, &sy);
|
|
|
|
if (drag->base.focus != view)
|
|
|
|
weston_drag_set_focus(&drag->base, pointer->seat, view, sx, sy);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_motion(struct weston_pointer_grab *grab, uint32_t time,
|
|
|
|
wl_fixed_t x, wl_fixed_t y)
|
|
|
|
{
|
|
|
|
struct weston_pointer_drag *drag =
|
|
|
|
container_of(grab, struct weston_pointer_drag, grab);
|
|
|
|
struct weston_pointer *pointer = drag->grab.pointer;
|
|
|
|
float fx, fy;
|
|
|
|
wl_fixed_t sx, sy;
|
|
|
|
|
|
|
|
weston_pointer_move(pointer, x, y);
|
|
|
|
|
|
|
|
if (drag->base.icon) {
|
|
|
|
fx = wl_fixed_to_double(pointer->x) + drag->base.dx;
|
|
|
|
fy = wl_fixed_to_double(pointer->y) + drag->base.dy;
|
|
|
|
weston_view_set_position(drag->base.icon, fx, fy);
|
|
|
|
weston_view_schedule_repaint(drag->base.icon);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (drag->base.focus_resource) {
|
|
|
|
weston_view_from_global_fixed(drag->base.focus,
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
pointer->x, pointer->y,
|
|
|
|
&sx, &sy);
|
|
|
|
|
|
|
|
wl_data_device_send_motion(drag->base.focus_resource, time, sx, sy);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
data_device_end_drag_grab(struct weston_drag *drag,
|
|
|
|
struct weston_seat *seat)
|
|
|
|
{
|
|
|
|
if (drag->icon) {
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
if (weston_view_is_mapped(drag->icon))
|
|
|
|
weston_view_unmap(drag->icon);
|
|
|
|
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
drag->icon->surface->configure = NULL;
|
|
|
|
empty_region(&drag->icon->surface->pending.input);
|
|
|
|
wl_list_remove(&drag->icon_destroy_listener.link);
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
weston_view_destroy(drag->icon);
|
|
|
|
}
|
|
|
|
|
|
|
|
weston_drag_set_focus(drag, seat, NULL, 0, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
data_device_end_pointer_drag_grab(struct weston_pointer_drag *drag)
|
|
|
|
{
|
|
|
|
struct weston_pointer *pointer = drag->grab.pointer;
|
|
|
|
|
|
|
|
data_device_end_drag_grab(&drag->base, pointer->seat);
|
|
|
|
weston_pointer_end_grab(pointer);
|
|
|
|
free(drag);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_button(struct weston_pointer_grab *grab,
|
|
|
|
uint32_t time, uint32_t button, uint32_t state_w)
|
|
|
|
{
|
|
|
|
struct weston_pointer_drag *drag =
|
|
|
|
container_of(grab, struct weston_pointer_drag, grab);
|
|
|
|
struct weston_pointer *pointer = drag->grab.pointer;
|
|
|
|
enum wl_pointer_button_state state = state_w;
|
|
|
|
|
|
|
|
if (drag->base.focus_resource &&
|
|
|
|
pointer->grab_button == button &&
|
|
|
|
state == WL_POINTER_BUTTON_STATE_RELEASED)
|
|
|
|
wl_data_device_send_drop(drag->base.focus_resource);
|
|
|
|
|
|
|
|
if (pointer->button_count == 0 &&
|
|
|
|
state == WL_POINTER_BUTTON_STATE_RELEASED) {
|
|
|
|
if (drag->base.data_source)
|
|
|
|
wl_list_remove(&drag->base.data_source_listener.link);
|
|
|
|
data_device_end_pointer_drag_grab(drag);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_cancel(struct weston_pointer_grab *grab)
|
|
|
|
{
|
|
|
|
struct weston_pointer_drag *drag =
|
|
|
|
container_of(grab, struct weston_pointer_drag, grab);
|
|
|
|
|
|
|
|
if (drag->base.data_source)
|
|
|
|
wl_list_remove(&drag->base.data_source_listener.link);
|
|
|
|
|
|
|
|
data_device_end_pointer_drag_grab(drag);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct weston_pointer_grab_interface pointer_drag_grab_interface = {
|
|
|
|
drag_grab_focus,
|
|
|
|
drag_grab_motion,
|
|
|
|
drag_grab_button,
|
|
|
|
drag_grab_cancel,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_touch_down(struct weston_touch_grab *grab, uint32_t time,
|
|
|
|
int touch_id, wl_fixed_t sx, wl_fixed_t sy)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
data_device_end_touch_drag_grab(struct weston_touch_drag *drag)
|
|
|
|
{
|
|
|
|
struct weston_touch *touch = drag->grab.touch;
|
|
|
|
|
|
|
|
data_device_end_drag_grab(&drag->base, touch->seat);
|
|
|
|
weston_touch_end_grab(touch);
|
|
|
|
free(drag);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_touch_up(struct weston_touch_grab *grab,
|
|
|
|
uint32_t time, int touch_id)
|
|
|
|
{
|
|
|
|
struct weston_touch_drag *touch_drag =
|
|
|
|
container_of(grab, struct weston_touch_drag, grab);
|
|
|
|
struct weston_touch *touch = grab->touch;
|
|
|
|
|
|
|
|
if (touch_id != touch->grab_touch_id)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (touch_drag->base.focus_resource)
|
|
|
|
wl_data_device_send_drop(touch_drag->base.focus_resource);
|
|
|
|
if (touch_drag->base.data_source)
|
|
|
|
wl_list_remove(&touch_drag->base.data_source_listener.link);
|
|
|
|
data_device_end_touch_drag_grab(touch_drag);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_touch_focus(struct weston_touch_drag *drag)
|
|
|
|
{
|
|
|
|
struct weston_touch *touch = drag->grab.touch;
|
|
|
|
struct weston_view *view;
|
|
|
|
wl_fixed_t view_x, view_y;
|
|
|
|
|
|
|
|
view = weston_compositor_pick_view(touch->seat->compositor,
|
|
|
|
touch->grab_x, touch->grab_y,
|
|
|
|
&view_x, &view_y);
|
|
|
|
if (drag->base.focus != view)
|
|
|
|
weston_drag_set_focus(&drag->base, touch->seat,
|
|
|
|
view, view_x, view_y);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_touch_motion(struct weston_touch_grab *grab, uint32_t time,
|
|
|
|
int touch_id, wl_fixed_t sx, wl_fixed_t sy)
|
|
|
|
{
|
|
|
|
struct weston_touch_drag *touch_drag =
|
|
|
|
container_of(grab, struct weston_touch_drag, grab);
|
|
|
|
struct weston_touch *touch = grab->touch;
|
|
|
|
wl_fixed_t view_x, view_y;
|
|
|
|
float fx, fy;
|
|
|
|
|
|
|
|
if (touch_id != touch->grab_touch_id)
|
|
|
|
return;
|
|
|
|
|
|
|
|
drag_grab_touch_focus(touch_drag);
|
|
|
|
if (touch_drag->base.icon) {
|
|
|
|
fx = wl_fixed_to_double(touch->grab_x) + touch_drag->base.dx;
|
|
|
|
fy = wl_fixed_to_double(touch->grab_y) + touch_drag->base.dy;
|
|
|
|
weston_view_set_position(touch_drag->base.icon, fx, fy);
|
|
|
|
weston_view_schedule_repaint(touch_drag->base.icon);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (touch_drag->base.focus_resource) {
|
|
|
|
weston_view_from_global_fixed(touch_drag->base.focus,
|
|
|
|
touch->grab_x, touch->grab_y,
|
|
|
|
&view_x, &view_y);
|
|
|
|
wl_data_device_send_motion(touch_drag->base.focus_resource, time,
|
|
|
|
view_x, view_y);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
drag_grab_touch_cancel(struct weston_touch_grab *grab)
|
|
|
|
{
|
|
|
|
struct weston_touch_drag *touch_drag =
|
|
|
|
container_of(grab, struct weston_touch_drag, grab);
|
|
|
|
|
|
|
|
if (touch_drag->base.data_source)
|
|
|
|
wl_list_remove(&touch_drag->base.data_source_listener.link);
|
|
|
|
data_device_end_touch_drag_grab(touch_drag);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct weston_touch_grab_interface touch_drag_grab_interface = {
|
|
|
|
drag_grab_touch_down,
|
|
|
|
drag_grab_touch_up,
|
|
|
|
drag_grab_touch_motion,
|
|
|
|
drag_grab_touch_cancel
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
destroy_pointer_data_device_source(struct wl_listener *listener, void *data)
|
|
|
|
{
|
|
|
|
struct weston_pointer_drag *drag = container_of(listener,
|
|
|
|
struct weston_pointer_drag, base.data_source_listener);
|
|
|
|
|
|
|
|
data_device_end_pointer_drag_grab(drag);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_drag_icon_destroy(struct wl_listener *listener, void *data)
|
|
|
|
{
|
|
|
|
struct weston_drag *drag = container_of(listener, struct weston_drag,
|
|
|
|
icon_destroy_listener);
|
|
|
|
|
|
|
|
drag->icon = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
WL_EXPORT int
|
|
|
|
weston_pointer_start_drag(struct weston_pointer *pointer,
|
|
|
|
struct weston_data_source *source,
|
|
|
|
struct weston_surface *icon,
|
|
|
|
struct wl_client *client)
|
|
|
|
{
|
|
|
|
struct weston_pointer_drag *drag;
|
|
|
|
|
|
|
|
drag = zalloc(sizeof *drag);
|
|
|
|
if (drag == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
drag->grab.interface = &pointer_drag_grab_interface;
|
|
|
|
drag->base.client = client;
|
|
|
|
drag->base.data_source = source;
|
|
|
|
|
|
|
|
if (icon) {
|
|
|
|
drag->base.icon = weston_view_create(icon);
|
|
|
|
if (drag->base.icon == NULL) {
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
free(drag);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
drag->base.icon_destroy_listener.notify = handle_drag_icon_destroy;
|
|
|
|
wl_signal_add(&icon->destroy_signal,
|
|
|
|
&drag->base.icon_destroy_listener);
|
|
|
|
|
|
|
|
icon->configure = pointer_drag_surface_configure;
|
|
|
|
icon->configure_private = drag;
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
} else {
|
|
|
|
drag->base.icon = NULL;
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
}
|
|
|
|
|
|
|
|
if (source) {
|
|
|
|
drag->base.data_source_listener.notify = destroy_pointer_data_device_source;
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
wl_signal_add(&source->destroy_signal,
|
|
|
|
&drag->base.data_source_listener);
|
|
|
|
}
|
|
|
|
|
|
|
|
weston_pointer_set_focus(pointer, NULL,
|
|
|
|
wl_fixed_from_int(0), wl_fixed_from_int(0));
|
|
|
|
weston_pointer_start_grab(pointer, &drag->grab);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
destroy_touch_data_device_source(struct wl_listener *listener, void *data)
|
|
|
|
{
|
|
|
|
struct weston_touch_drag *drag = container_of(listener,
|
|
|
|
struct weston_touch_drag, base.data_source_listener);
|
|
|
|
|
|
|
|
data_device_end_touch_drag_grab(drag);
|
|
|
|
}
|
|
|
|
|
|
|
|
WL_EXPORT int
|
|
|
|
weston_touch_start_drag(struct weston_touch *touch,
|
|
|
|
struct weston_data_source *source,
|
|
|
|
struct weston_surface *icon,
|
|
|
|
struct wl_client *client)
|
|
|
|
{
|
|
|
|
struct weston_touch_drag *drag;
|
|
|
|
|
|
|
|
drag = zalloc(sizeof *drag);
|
|
|
|
if (drag == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
drag->grab.interface = &touch_drag_grab_interface;
|
|
|
|
drag->base.client = client;
|
|
|
|
drag->base.data_source = source;
|
|
|
|
|
|
|
|
if (icon) {
|
|
|
|
drag->base.icon = weston_view_create(icon);
|
|
|
|
if (drag->base.icon == NULL) {
|
|
|
|
free(drag);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
drag->base.icon_destroy_listener.notify = handle_drag_icon_destroy;
|
|
|
|
wl_signal_add(&icon->destroy_signal,
|
|
|
|
&drag->base.icon_destroy_listener);
|
|
|
|
|
|
|
|
icon->configure = touch_drag_surface_configure;
|
|
|
|
icon->configure_private = drag;
|
|
|
|
} else {
|
|
|
|
drag->base.icon = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (source) {
|
|
|
|
drag->base.data_source_listener.notify = destroy_touch_data_device_source;
|
|
|
|
wl_signal_add(&source->destroy_signal,
|
|
|
|
&drag->base.data_source_listener);
|
|
|
|
}
|
|
|
|
|
|
|
|
weston_touch_start_grab(touch, &drag->grab);
|
|
|
|
|
|
|
|
drag_grab_touch_focus(drag);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
data_device_start_drag(struct wl_client *client, struct wl_resource *resource,
|
|
|
|
struct wl_resource *source_resource,
|
|
|
|
struct wl_resource *origin_resource,
|
|
|
|
struct wl_resource *icon_resource, uint32_t serial)
|
|
|
|
{
|
|
|
|
struct weston_seat *seat = wl_resource_get_user_data(resource);
|
|
|
|
struct weston_data_source *source = NULL;
|
|
|
|
struct weston_surface *icon = NULL;
|
|
|
|
int32_t ret = 0;
|
|
|
|
|
|
|
|
if ((seat->pointer->button_count == 0 ||
|
|
|
|
seat->pointer->grab_serial != serial ||
|
Split the geometry information from weston_surface out into weston_view
The weston_surface structure is split into two structures:
* The weston_surface structure storres everything required for a
client-side or server-side surface. This includes buffers; callbacks;
backend private data; input, damage, and opaque regions; and a few other
bookkeeping bits.
* The weston_view structure represents an entity in the scenegraph and
storres all of the geometry information. This includes clip region,
alpha, position, and the transformation list as well as all of the
temporary information derived from the geometry state. Because a view,
and not a surface, is a scenegraph element, the view is what is placed
in layers and planes.
There are a few things worth noting about the surface/view split:
1. This is *not* a modification to the protocol. It is, instead, a
modification to Weston's internal scenegraph to allow a single surface
to exist in multiple places at a time. Clients are completely unaware
of how many views to a particular surface exist.
2. A view is considered a direct child of a surface and is destroyed when
the surface is destroyed. Because of this, the view.surface pointer is
always valid and non-null.
3. The compositor's surface_list is replaced with a view_list. Due to
subsurfaces, building the view list is a little more complicated than
it used to be and involves building a tree of views on the fly whenever
subsurfaces are used. However, this means that backends can remain
completely subsurface-agnostic.
4. Surfaces and views both keep track of which outputs they are on.
5. The weston_surface structure now has width and height fields. These
are populated when a new buffer is attached before surface.configure
is called. This is because there are many surface-based operations
that really require the width and height and digging through the views
didn't work well.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
11 years ago
|
|
|
!seat->pointer->focus ||
|
|
|
|
seat->pointer->focus->surface != wl_resource_get_user_data(origin_resource)) &&
|
|
|
|
(seat->touch->grab_serial != serial ||
|
|
|
|
!seat->touch->focus ||
|
|
|
|
seat->touch->focus->surface != wl_resource_get_user_data(origin_resource)))
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* FIXME: Check that the data source type array isn't empty. */
|
|
|
|
|
|
|
|
if (source_resource)
|
|
|
|
source = wl_resource_get_user_data(source_resource);
|
|
|
|
if (icon_resource)
|
|
|
|
icon = wl_resource_get_user_data(icon_resource);
|
|
|
|
if (icon && icon->configure) {
|
|
|
|
wl_resource_post_error(icon_resource,
|
|
|
|
WL_DISPLAY_ERROR_INVALID_OBJECT,
|
|
|
|
"surface->configure already set");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (seat->pointer->button_count == 1 &&
|
|
|
|
seat->pointer->grab_serial == serial &&
|
|
|
|
seat->pointer->focus &&
|
|
|
|
seat->pointer->focus->surface == wl_resource_get_user_data(origin_resource))
|
|
|
|
ret = weston_pointer_start_drag(seat->pointer, source, icon, client);
|
|
|
|
else if (seat->touch->grab_serial != serial ||
|
|
|
|
seat->touch->focus ||
|
|
|
|
seat->touch->focus->surface != wl_resource_get_user_data(origin_resource))
|
|
|
|
ret = weston_touch_start_drag(seat->touch, source, icon, client);
|
|
|
|
|
|
|
|
if (ret < 0)
|
|
|
|
wl_resource_post_no_memory(resource);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
destroy_selection_data_source(struct wl_listener *listener, void *data)
|
|
|
|
{
|
|
|
|
struct weston_seat *seat = container_of(listener, struct weston_seat,
|
|
|
|
selection_data_source_listener);
|
|
|
|
struct wl_resource *data_device;
|
|
|
|
struct weston_surface *focus = NULL;
|
|
|
|
|
|
|
|
seat->selection_data_source = NULL;
|
|
|
|
|
|
|
|
if (seat->keyboard)
|
|
|
|
focus = seat->keyboard->focus;
|
|
|
|
if (focus && focus->resource) {
|
|
|
|
data_device = wl_resource_find_for_client(&seat->drag_resource_list,
|
|
|
|
wl_resource_get_client(focus->resource));
|
|
|
|
if (data_device)
|
|
|
|
wl_data_device_send_selection(data_device, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
wl_signal_emit(&seat->selection_signal, seat);
|
|
|
|
}
|
|
|
|
|
|
|
|
WL_EXPORT void
|
|
|
|
weston_seat_set_selection(struct weston_seat *seat,
|
|
|
|
struct weston_data_source *source, uint32_t serial)
|
|
|
|
{
|
|
|
|
struct wl_resource *data_device, *offer;
|
|
|
|
struct weston_surface *focus = NULL;
|
|
|
|
|
|
|
|
if (seat->selection_data_source &&
|
|
|
|
seat->selection_serial - serial < UINT32_MAX / 2)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (seat->selection_data_source) {
|
|
|
|
seat->selection_data_source->cancel(seat->selection_data_source);
|
|
|
|
wl_list_remove(&seat->selection_data_source_listener.link);
|
|
|
|
seat->selection_data_source = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
seat->selection_data_source = source;
|
|
|
|
seat->selection_serial = serial;
|
|
|
|
|
|
|
|
if (seat->keyboard)
|
|
|
|
focus = seat->keyboard->focus;
|
|
|
|
if (focus && focus->resource) {
|
|
|
|
data_device = wl_resource_find_for_client(&seat->drag_resource_list,
|
|
|
|
wl_resource_get_client(focus->resource));
|
|
|
|
if (data_device && source) {
|
|
|
|
offer = weston_data_source_send_offer(seat->selection_data_source,
|
|
|
|
data_device);
|
|
|
|
wl_data_device_send_selection(data_device, offer);
|
|
|
|
} else if (data_device) {
|
|
|
|
wl_data_device_send_selection(data_device, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
wl_signal_emit(&seat->selection_signal, seat);
|
|
|
|
|
|
|
|
if (source) {
|
|
|
|
seat->selection_data_source_listener.notify =
|
|
|
|
destroy_selection_data_source;
|
|
|
|
wl_signal_add(&source->destroy_signal,
|
|
|
|
&seat->selection_data_source_listener);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
data_device_set_selection(struct wl_client *client,
|
|
|
|
struct wl_resource *resource,
|
|
|
|
struct wl_resource *source_resource, uint32_t serial)
|
|
|
|
{
|
|
|
|
if (!source_resource)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* FIXME: Store serial and check against incoming serial here. */
|
|
|
|
weston_seat_set_selection(wl_resource_get_user_data(resource),
|
|
|
|
wl_resource_get_user_data(source_resource),
|
|
|
|
serial);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct wl_data_device_interface data_device_interface = {
|
|
|
|
data_device_start_drag,
|
|
|
|
data_device_set_selection,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
destroy_data_source(struct wl_resource *resource)
|
|
|
|
{
|
|
|
|
struct weston_data_source *source =
|
|
|
|
wl_resource_get_user_data(resource);
|
|
|
|
char **p;
|
|
|
|
|
|
|
|
wl_signal_emit(&source->destroy_signal, source);
|
|
|
|
|
|
|
|
wl_array_for_each(p, &source->mime_types)
|
|
|
|
free(*p);
|
|
|
|
|
|
|
|
wl_array_release(&source->mime_types);
|
|
|
|
|
|
|
|
free(source);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
client_source_accept(struct weston_data_source *source,
|
|
|
|
uint32_t time, const char *mime_type)
|
|
|
|
{
|
|
|
|
wl_data_source_send_target(source->resource, mime_type);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
client_source_send(struct weston_data_source *source,
|
|
|
|
const char *mime_type, int32_t fd)
|
|
|
|
{
|
|
|
|
wl_data_source_send_send(source->resource, mime_type, fd);
|
|
|
|
close(fd);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
client_source_cancel(struct weston_data_source *source)
|
|
|
|
{
|
|
|
|
wl_data_source_send_cancelled(source->resource);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
create_data_source(struct wl_client *client,
|
|
|
|
struct wl_resource *resource, uint32_t id)
|
|
|
|
{
|
|
|
|
struct weston_data_source *source;
|
|
|
|
|
|
|
|
source = malloc(sizeof *source);
|
|
|
|
if (source == NULL) {
|
|
|
|
wl_resource_post_no_memory(resource);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
wl_signal_init(&source->destroy_signal);
|
|
|
|
source->accept = client_source_accept;
|
|
|
|
source->send = client_source_send;
|
|
|
|
source->cancel = client_source_cancel;
|
|
|
|
|
|
|
|
wl_array_init(&source->mime_types);
|
|
|
|
|
|
|
|
source->resource =
|
|
|
|
wl_resource_create(client, &wl_data_source_interface, 1, id);
|
|
|
|
wl_resource_set_implementation(source->resource, &data_source_interface,
|
|
|
|
source, destroy_data_source);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void unbind_data_device(struct wl_resource *resource)
|
|
|
|
{
|
|
|
|
wl_list_remove(wl_resource_get_link(resource));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
get_data_device(struct wl_client *client,
|
|
|
|
struct wl_resource *manager_resource,
|
|
|
|
uint32_t id, struct wl_resource *seat_resource)
|
|
|
|
{
|
|
|
|
struct weston_seat *seat = wl_resource_get_user_data(seat_resource);
|
|
|
|
struct wl_resource *resource;
|
|
|
|
|
|
|
|
resource = wl_resource_create(client,
|
|
|
|
&wl_data_device_interface, 1, id);
|
|
|
|
if (resource == NULL) {
|
|
|
|
wl_resource_post_no_memory(manager_resource);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
wl_list_insert(&seat->drag_resource_list,
|
|
|
|
wl_resource_get_link(resource));
|
|
|
|
wl_resource_set_implementation(resource, &data_device_interface,
|
|
|
|
seat, unbind_data_device);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct wl_data_device_manager_interface manager_interface = {
|
|
|
|
create_data_source,
|
|
|
|
get_data_device
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
bind_manager(struct wl_client *client,
|
|
|
|
void *data, uint32_t version, uint32_t id)
|
|
|
|
{
|
|
|
|
struct wl_resource *resource;
|
|
|
|
|
|
|
|
resource =
|
|
|
|
wl_resource_create(client,
|
|
|
|
&wl_data_device_manager_interface, 1, id);
|
|
|
|
if (resource == NULL) {
|
|
|
|
wl_client_post_no_memory(client);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
wl_resource_set_implementation(resource, &manager_interface,
|
|
|
|
NULL, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
WL_EXPORT void
|
|
|
|
wl_data_device_set_keyboard_focus(struct weston_seat *seat)
|
|
|
|
{
|
|
|
|
struct wl_resource *data_device, *offer;
|
|
|
|
struct weston_data_source *source;
|
|
|
|
struct weston_surface *focus;
|
|
|
|
|
|
|
|
if (!seat->keyboard)
|
|
|
|
return;
|
|
|
|
|
|
|
|
focus = seat->keyboard->focus;
|
|
|
|
if (!focus || !focus->resource)
|
|
|
|
return;
|
|
|
|
|
|
|
|
data_device = wl_resource_find_for_client(&seat->drag_resource_list,
|
|
|
|
wl_resource_get_client(focus->resource));
|
|
|
|
if (!data_device)
|
|
|
|
return;
|
|
|
|
|
|
|
|
source = seat->selection_data_source;
|
|
|
|
if (source) {
|
|
|
|
offer = weston_data_source_send_offer(source, data_device);
|
|
|
|
wl_data_device_send_selection(data_device, offer);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
WL_EXPORT int
|
|
|
|
wl_data_device_manager_init(struct wl_display *display)
|
|
|
|
{
|
|
|
|
if (wl_global_create(display,
|
|
|
|
&wl_data_device_manager_interface, 1,
|
|
|
|
NULL, bind_manager) == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|