mirror of
https://github.com/NickHu/sway
synced 2024-12-29 22:23:46 +01:00
0a9ff774ad
The goal here is to center fullscreen views when they are both too small
for the output and refuse to resize to the output's dimensions. It has
the side effect of also centering the view when it's too small for its
container.
Example clients that have this behaviour are emersion's hello-wayland
and weston.
It works by introducing surface_{x,y,width,height} properties to the
container struct. The x and y represent layout-local coordinates where
the surface will be rendered. The width and height are only used to
track the surface's previous dimensions so we can detect when the client
has resized it and recenter and apply damage accordingly.
The new surface properties are calculated when a transaction is applied,
as well as when a view resizes itself unexpectedly. The latter is done
in view_update_size. This function was previously restricted to views
which are floating, but can now be called for any views.
For views which refuse to resize *smaller* than a particular size, such
as gnome-calculator, the surface is still anchored to the top left as
per the current behaviour.
495 lines
16 KiB
C
495 lines
16 KiB
C
#define _POSIX_C_SOURCE 199309L
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#include <float.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_xdg_shell_v6.h>
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#include "log.h"
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#include "sway/decoration.h"
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#include "sway/desktop.h"
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#include "sway/desktop/transaction.h"
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#include "sway/input/cursor.h"
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#include "sway/input/input-manager.h"
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#include "sway/input/seat.h"
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#include "sway/output.h"
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#include "sway/tree/arrange.h"
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#include "sway/tree/container.h"
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#include "sway/tree/view.h"
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#include "sway/tree/workspace.h"
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static const struct sway_view_child_impl popup_impl;
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static void popup_get_root_coords(struct sway_view_child *child,
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int *root_sx, int *root_sy) {
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struct sway_xdg_popup_v6 *popup = (struct sway_xdg_popup_v6 *)child;
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struct wlr_xdg_surface_v6 *surface = popup->wlr_xdg_surface_v6;
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int x_offset = -child->view->geometry.x - surface->geometry.x;
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int y_offset = -child->view->geometry.y - surface->geometry.y;
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wlr_xdg_popup_v6_get_toplevel_coords(surface->popup,
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x_offset + surface->popup->geometry.x,
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y_offset + surface->popup->geometry.y,
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root_sx, root_sy);
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}
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static void popup_destroy(struct sway_view_child *child) {
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if (!sway_assert(child->impl == &popup_impl,
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"Expected an xdg_shell_v6 popup")) {
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return;
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}
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struct sway_xdg_popup_v6 *popup = (struct sway_xdg_popup_v6 *)child;
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wl_list_remove(&popup->new_popup.link);
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wl_list_remove(&popup->destroy.link);
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free(popup);
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}
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static const struct sway_view_child_impl popup_impl = {
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.get_root_coords = popup_get_root_coords,
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.destroy = popup_destroy,
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};
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static struct sway_xdg_popup_v6 *popup_create(
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struct wlr_xdg_popup_v6 *wlr_popup, struct sway_view *view);
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static void popup_handle_new_popup(struct wl_listener *listener, void *data) {
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struct sway_xdg_popup_v6 *popup =
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wl_container_of(listener, popup, new_popup);
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struct wlr_xdg_popup_v6 *wlr_popup = data;
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popup_create(wlr_popup, popup->child.view);
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}
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static void popup_handle_destroy(struct wl_listener *listener, void *data) {
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struct sway_xdg_popup_v6 *popup = wl_container_of(listener, popup, destroy);
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view_child_destroy(&popup->child);
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}
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static void popup_unconstrain(struct sway_xdg_popup_v6 *popup) {
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struct sway_view *view = popup->child.view;
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struct wlr_xdg_popup_v6 *wlr_popup = popup->wlr_xdg_surface_v6->popup;
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struct sway_output *output = view->container->workspace->output;
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// the output box expressed in the coordinate system of the toplevel parent
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// of the popup
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struct wlr_box output_toplevel_sx_box = {
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.x = output->lx - view->container->content_x,
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.y = output->ly - view->container->content_y,
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.width = output->width,
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.height = output->height,
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};
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wlr_xdg_popup_v6_unconstrain_from_box(wlr_popup, &output_toplevel_sx_box);
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}
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static struct sway_xdg_popup_v6 *popup_create(
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struct wlr_xdg_popup_v6 *wlr_popup, struct sway_view *view) {
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struct wlr_xdg_surface_v6 *xdg_surface = wlr_popup->base;
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struct sway_xdg_popup_v6 *popup =
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calloc(1, sizeof(struct sway_xdg_popup_v6));
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if (popup == NULL) {
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return NULL;
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}
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view_child_init(&popup->child, &popup_impl, view, xdg_surface->surface);
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popup->wlr_xdg_surface_v6 = xdg_surface;
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wl_signal_add(&xdg_surface->events.new_popup, &popup->new_popup);
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popup->new_popup.notify = popup_handle_new_popup;
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wl_signal_add(&xdg_surface->events.destroy, &popup->destroy);
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popup->destroy.notify = popup_handle_destroy;
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wl_signal_add(&xdg_surface->events.map, &popup->child.surface_map);
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wl_signal_add(&xdg_surface->events.unmap, &popup->child.surface_unmap);
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popup_unconstrain(popup);
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return popup;
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}
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static struct sway_xdg_shell_v6_view *xdg_shell_v6_view_from_view(
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struct sway_view *view) {
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if (!sway_assert(view->type == SWAY_VIEW_XDG_SHELL_V6,
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"Expected xdg_shell_v6 view")) {
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return NULL;
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}
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return (struct sway_xdg_shell_v6_view *)view;
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}
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static void get_constraints(struct sway_view *view, double *min_width,
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double *max_width, double *min_height, double *max_height) {
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struct wlr_xdg_toplevel_v6_state *state =
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&view->wlr_xdg_surface_v6->toplevel->current;
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*min_width = state->min_width > 0 ? state->min_width : DBL_MIN;
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*max_width = state->max_width > 0 ? state->max_width : DBL_MAX;
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*min_height = state->min_height > 0 ? state->min_height : DBL_MIN;
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*max_height = state->max_height > 0 ? state->max_height : DBL_MAX;
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}
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static const char *get_string_prop(struct sway_view *view,
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enum sway_view_prop prop) {
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if (xdg_shell_v6_view_from_view(view) == NULL) {
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return NULL;
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}
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switch (prop) {
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case VIEW_PROP_TITLE:
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return view->wlr_xdg_surface_v6->toplevel->title;
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case VIEW_PROP_APP_ID:
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return view->wlr_xdg_surface_v6->toplevel->app_id;
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default:
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return NULL;
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}
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}
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static uint32_t configure(struct sway_view *view, double lx, double ly,
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int width, int height) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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xdg_shell_v6_view_from_view(view);
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if (xdg_shell_v6_view == NULL) {
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return 0;
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}
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return wlr_xdg_toplevel_v6_set_size(
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view->wlr_xdg_surface_v6, width, height);
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}
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static void set_activated(struct sway_view *view, bool activated) {
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if (xdg_shell_v6_view_from_view(view) == NULL) {
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return;
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}
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struct wlr_xdg_surface_v6 *surface = view->wlr_xdg_surface_v6;
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if (surface->role == WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
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wlr_xdg_toplevel_v6_set_activated(surface, activated);
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}
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}
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static void set_tiled(struct sway_view *view, bool tiled) {
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if (xdg_shell_v6_view_from_view(view) == NULL) {
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return;
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}
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struct wlr_xdg_surface_v6 *surface = view->wlr_xdg_surface_v6;
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wlr_xdg_toplevel_v6_set_maximized(surface, tiled);
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}
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static void set_fullscreen(struct sway_view *view, bool fullscreen) {
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if (xdg_shell_v6_view_from_view(view) == NULL) {
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return;
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}
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struct wlr_xdg_surface_v6 *surface = view->wlr_xdg_surface_v6;
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wlr_xdg_toplevel_v6_set_fullscreen(surface, fullscreen);
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}
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static bool wants_floating(struct sway_view *view) {
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struct wlr_xdg_toplevel_v6 *toplevel =
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view->wlr_xdg_surface_v6->toplevel;
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struct wlr_xdg_toplevel_v6_state *state = &toplevel->current;
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return (state->min_width != 0 && state->min_height != 0
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&& (state->min_width == state->max_width
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|| state->min_height == state->max_height))
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|| toplevel->parent;
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}
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static void for_each_surface(struct sway_view *view,
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wlr_surface_iterator_func_t iterator, void *user_data) {
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if (xdg_shell_v6_view_from_view(view) == NULL) {
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return;
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}
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wlr_xdg_surface_v6_for_each_surface(view->wlr_xdg_surface_v6, iterator,
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user_data);
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}
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static void for_each_popup(struct sway_view *view,
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wlr_surface_iterator_func_t iterator, void *user_data) {
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if (xdg_shell_v6_view_from_view(view) == NULL) {
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return;
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}
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wlr_xdg_surface_v6_for_each_popup(view->wlr_xdg_surface_v6, iterator,
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user_data);
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}
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static bool is_transient_for(struct sway_view *child,
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struct sway_view *ancestor) {
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if (xdg_shell_v6_view_from_view(child) == NULL) {
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return false;
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}
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struct wlr_xdg_surface_v6 *surface = child->wlr_xdg_surface_v6;
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while (surface) {
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if (surface->toplevel->parent == ancestor->wlr_xdg_surface_v6) {
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return true;
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}
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surface = surface->toplevel->parent;
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}
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return false;
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}
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static void _close(struct sway_view *view) {
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if (xdg_shell_v6_view_from_view(view) == NULL) {
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return;
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}
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struct wlr_xdg_surface_v6 *surface = view->wlr_xdg_surface_v6;
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if (surface->role == WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
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wlr_xdg_surface_v6_send_close(surface);
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}
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}
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static void close_popups_iterator(struct wlr_surface *surface,
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int sx, int sy, void *data) {
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struct wlr_xdg_surface_v6 *xdg_surface_v6 =
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wlr_xdg_surface_v6_from_wlr_surface(surface);
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wlr_xdg_surface_v6_send_close(xdg_surface_v6);
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}
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static void close_popups(struct sway_view *view) {
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wlr_xdg_surface_v6_for_each_popup(view->wlr_xdg_surface_v6,
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close_popups_iterator, NULL);
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}
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static void destroy(struct sway_view *view) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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xdg_shell_v6_view_from_view(view);
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if (xdg_shell_v6_view == NULL) {
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return;
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}
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free(xdg_shell_v6_view);
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}
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static const struct sway_view_impl view_impl = {
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.get_constraints = get_constraints,
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.get_string_prop = get_string_prop,
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.configure = configure,
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.set_activated = set_activated,
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.set_tiled = set_tiled,
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.set_fullscreen = set_fullscreen,
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.wants_floating = wants_floating,
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.for_each_surface = for_each_surface,
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.for_each_popup = for_each_popup,
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.is_transient_for = is_transient_for,
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.close = _close,
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.close_popups = close_popups,
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.destroy = destroy,
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};
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static void handle_commit(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, commit);
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struct sway_view *view = &xdg_shell_v6_view->view;
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struct wlr_xdg_surface_v6 *xdg_surface_v6 = view->wlr_xdg_surface_v6;
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if (view->container->node.instruction) {
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wlr_xdg_surface_v6_get_geometry(xdg_surface_v6, &view->geometry);
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transaction_notify_view_ready_by_serial(view,
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xdg_surface_v6->configure_serial);
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} else {
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struct wlr_box new_geo;
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wlr_xdg_surface_v6_get_geometry(xdg_surface_v6, &new_geo);
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struct sway_container *con = view->container;
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if ((new_geo.width != con->surface_width ||
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new_geo.height != con->surface_height)) {
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// The view has unexpectedly sent a new size
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desktop_damage_view(view);
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view_update_size(view, new_geo.width, new_geo.height);
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memcpy(&view->geometry, &new_geo, sizeof(struct wlr_box));
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desktop_damage_view(view);
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transaction_commit_dirty();
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} else {
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memcpy(&view->geometry, &new_geo, sizeof(struct wlr_box));
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}
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}
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view_damage_from(view);
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}
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static void handle_set_title(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, set_title);
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struct sway_view *view = &xdg_shell_v6_view->view;
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view_update_title(view, false);
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view_execute_criteria(view);
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}
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static void handle_set_app_id(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, set_app_id);
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struct sway_view *view = &xdg_shell_v6_view->view;
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view_execute_criteria(view);
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}
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static void handle_new_popup(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, new_popup);
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struct wlr_xdg_popup_v6 *wlr_popup = data;
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popup_create(wlr_popup, &xdg_shell_v6_view->view);
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}
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static void handle_request_fullscreen(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, request_fullscreen);
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struct wlr_xdg_toplevel_v6_set_fullscreen_event *e = data;
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struct wlr_xdg_surface_v6 *xdg_surface =
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xdg_shell_v6_view->view.wlr_xdg_surface_v6;
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struct sway_view *view = &xdg_shell_v6_view->view;
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if (!sway_assert(xdg_surface->role == WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL,
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"xdg_shell_v6 requested fullscreen of surface with role %i",
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xdg_surface->role)) {
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return;
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}
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if (!xdg_surface->mapped) {
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return;
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}
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container_set_fullscreen(view->container, e->fullscreen);
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arrange_root();
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transaction_commit_dirty();
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}
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static void handle_request_move(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, request_move);
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struct sway_view *view = &xdg_shell_v6_view->view;
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if (!container_is_floating(view->container)) {
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return;
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}
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struct wlr_xdg_toplevel_v6_move_event *e = data;
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struct sway_seat *seat = e->seat->seat->data;
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if (e->serial == seat->last_button_serial) {
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seatop_begin_move_floating(seat, view->container, seat->last_button);
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}
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}
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static void handle_request_resize(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, request_resize);
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struct sway_view *view = &xdg_shell_v6_view->view;
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if (!container_is_floating(view->container)) {
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return;
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}
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struct wlr_xdg_toplevel_v6_resize_event *e = data;
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struct sway_seat *seat = e->seat->seat->data;
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if (e->serial == seat->last_button_serial) {
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seatop_begin_resize_floating(seat, view->container,
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seat->last_button, e->edges);
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}
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}
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static void handle_unmap(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, unmap);
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struct sway_view *view = &xdg_shell_v6_view->view;
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if (!sway_assert(view->surface, "Cannot unmap unmapped view")) {
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return;
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}
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view_unmap(view);
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wl_list_remove(&xdg_shell_v6_view->commit.link);
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wl_list_remove(&xdg_shell_v6_view->new_popup.link);
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wl_list_remove(&xdg_shell_v6_view->request_fullscreen.link);
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wl_list_remove(&xdg_shell_v6_view->request_move.link);
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wl_list_remove(&xdg_shell_v6_view->request_resize.link);
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wl_list_remove(&xdg_shell_v6_view->set_title.link);
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wl_list_remove(&xdg_shell_v6_view->set_app_id.link);
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}
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static void handle_map(struct wl_listener *listener, void *data) {
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struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
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wl_container_of(listener, xdg_shell_v6_view, map);
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struct sway_view *view = &xdg_shell_v6_view->view;
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struct wlr_xdg_surface_v6 *xdg_surface = view->wlr_xdg_surface_v6;
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view->natural_width = view->wlr_xdg_surface_v6->geometry.width;
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view->natural_height = view->wlr_xdg_surface_v6->geometry.height;
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if (!view->natural_width && !view->natural_height) {
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view->natural_width = view->wlr_xdg_surface_v6->surface->current.width;
|
|
view->natural_height = view->wlr_xdg_surface_v6->surface->current.height;
|
|
}
|
|
struct sway_server_decoration *deco =
|
|
decoration_from_surface(xdg_surface->surface);
|
|
bool csd = !deco || deco->wlr_server_decoration->mode
|
|
== WLR_SERVER_DECORATION_MANAGER_MODE_CLIENT;
|
|
|
|
view_map(view, view->wlr_xdg_surface_v6->surface,
|
|
xdg_surface->toplevel->client_pending.fullscreen, csd);
|
|
|
|
transaction_commit_dirty();
|
|
|
|
xdg_shell_v6_view->commit.notify = handle_commit;
|
|
wl_signal_add(&xdg_surface->surface->events.commit,
|
|
&xdg_shell_v6_view->commit);
|
|
|
|
xdg_shell_v6_view->new_popup.notify = handle_new_popup;
|
|
wl_signal_add(&xdg_surface->events.new_popup,
|
|
&xdg_shell_v6_view->new_popup);
|
|
|
|
xdg_shell_v6_view->request_fullscreen.notify = handle_request_fullscreen;
|
|
wl_signal_add(&xdg_surface->toplevel->events.request_fullscreen,
|
|
&xdg_shell_v6_view->request_fullscreen);
|
|
|
|
xdg_shell_v6_view->request_move.notify = handle_request_move;
|
|
wl_signal_add(&xdg_surface->toplevel->events.request_move,
|
|
&xdg_shell_v6_view->request_move);
|
|
|
|
xdg_shell_v6_view->request_resize.notify = handle_request_resize;
|
|
wl_signal_add(&xdg_surface->toplevel->events.request_resize,
|
|
&xdg_shell_v6_view->request_resize);
|
|
|
|
xdg_shell_v6_view->set_title.notify = handle_set_title;
|
|
wl_signal_add(&xdg_surface->toplevel->events.set_title,
|
|
&xdg_shell_v6_view->set_title);
|
|
|
|
xdg_shell_v6_view->set_app_id.notify = handle_set_app_id;
|
|
wl_signal_add(&xdg_surface->toplevel->events.set_app_id,
|
|
&xdg_shell_v6_view->set_app_id);
|
|
}
|
|
|
|
static void handle_destroy(struct wl_listener *listener, void *data) {
|
|
struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
|
|
wl_container_of(listener, xdg_shell_v6_view, destroy);
|
|
struct sway_view *view = &xdg_shell_v6_view->view;
|
|
wl_list_remove(&xdg_shell_v6_view->destroy.link);
|
|
wl_list_remove(&xdg_shell_v6_view->map.link);
|
|
wl_list_remove(&xdg_shell_v6_view->unmap.link);
|
|
view->wlr_xdg_surface_v6 = NULL;
|
|
view_begin_destroy(view);
|
|
}
|
|
|
|
struct sway_view *view_from_wlr_xdg_surface_v6(
|
|
struct wlr_xdg_surface_v6 *xdg_surface_v6) {
|
|
return xdg_surface_v6->data;
|
|
}
|
|
|
|
void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
|
|
struct wlr_xdg_surface_v6 *xdg_surface = data;
|
|
|
|
if (xdg_surface->role == WLR_XDG_SURFACE_V6_ROLE_POPUP) {
|
|
sway_log(SWAY_DEBUG, "New xdg_shell_v6 popup");
|
|
return;
|
|
}
|
|
|
|
sway_log(SWAY_DEBUG, "New xdg_shell_v6 toplevel title='%s' app_id='%s'",
|
|
xdg_surface->toplevel->title, xdg_surface->toplevel->app_id);
|
|
wlr_xdg_surface_v6_ping(xdg_surface);
|
|
|
|
struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
|
|
calloc(1, sizeof(struct sway_xdg_shell_v6_view));
|
|
if (!sway_assert(xdg_shell_v6_view, "Failed to allocate view")) {
|
|
return;
|
|
}
|
|
|
|
view_init(&xdg_shell_v6_view->view, SWAY_VIEW_XDG_SHELL_V6, &view_impl);
|
|
xdg_shell_v6_view->view.wlr_xdg_surface_v6 = xdg_surface;
|
|
|
|
xdg_shell_v6_view->map.notify = handle_map;
|
|
wl_signal_add(&xdg_surface->events.map, &xdg_shell_v6_view->map);
|
|
|
|
xdg_shell_v6_view->unmap.notify = handle_unmap;
|
|
wl_signal_add(&xdg_surface->events.unmap, &xdg_shell_v6_view->unmap);
|
|
|
|
xdg_shell_v6_view->destroy.notify = handle_destroy;
|
|
wl_signal_add(&xdg_surface->events.destroy, &xdg_shell_v6_view->destroy);
|
|
|
|
xdg_surface->data = xdg_shell_v6_view;
|
|
}
|