swayfx/sway/container.c
D.B ee67cd0ba1 Fix tabbed/stacked corner case #742
Tabbed/stacked containers are now created only if a view is present on
the workspace. If a view is created on previously empty tabbed/stacked
workspace, it gets wrapped in a container.
2016-07-07 22:28:57 +02:00

895 lines
23 KiB
C

#include <ctype.h>
#include <stdlib.h>
#include <stdbool.h>
#include <strings.h>
#include <string.h>
#include "config.h"
#include "stringop.h"
#include "container.h"
#include "workspace.h"
#include "focus.h"
#include "border.h"
#include "layout.h"
#include "input_state.h"
#include "log.h"
#include "ipc-server.h"
#include "output.h"
#define ASSERT_NONNULL(PTR) \
sway_assert (PTR, #PTR "must be non-null")
static swayc_t *new_swayc(enum swayc_types type) {
swayc_t *c = calloc(1, sizeof(swayc_t));
c->handle = -1;
c->gaps = -1;
c->layout = L_NONE;
c->type = type;
if (type != C_VIEW) {
c->children = create_list();
}
return c;
}
static void free_swayc(swayc_t *cont) {
if (!ASSERT_NONNULL(cont)) {
return;
}
if (cont->children) {
// remove children until there are no more, free_swayc calls
// remove_child, which removes child from this container
while (cont->children->length) {
free_swayc(cont->children->items[0]);
}
list_free(cont->children);
}
if (cont->unmanaged) {
list_free(cont->unmanaged);
}
if (cont->floating) {
while (cont->floating->length) {
free_swayc(cont->floating->items[0]);
}
list_free(cont->floating);
}
if (cont->parent) {
remove_child(cont);
}
if (cont->name) {
free(cont->name);
}
if (cont->class) {
free(cont->class);
}
if (cont->app_id) {
free(cont->app_id);
}
if (cont->bg_pid != 0) {
terminate_swaybg(cont->bg_pid);
}
if (cont->border) {
if (cont->border->buffer) {
free(cont->border->buffer);
}
free(cont->border);
}
free(cont);
}
static void update_root_geometry() {
int width = 0;
int height = 0;
swayc_t *child;
int child_width;
int child_height;
for (int i = 0; i < root_container.children->length; ++i) {
child = root_container.children->items[i];
child_width = child->width + child->x;
child_height = child->height + child->y;
if (child_width > width) {
width = child_width;
}
if (child_height > height) {
height = child_height;
}
}
root_container.width = width;
root_container.height = height;
}
// New containers
swayc_t *new_output(wlc_handle handle) {
const struct wlc_size *size = wlc_output_get_resolution(handle);
const char *name = wlc_output_get_name(handle);
// Find current outputs to see if this already exists
{
int i, len = root_container.children->length;
for (i = 0; i < len; ++i) {
swayc_t *op = root_container.children->items[i];
const char *op_name = op->name;
if (op_name && name && strcmp(op_name, name) == 0) {
sway_log(L_DEBUG, "restoring output %" PRIuPTR ":%s", handle, op_name);
return op;
}
}
}
sway_log(L_DEBUG, "New output %" PRIuPTR ":%s", handle, name);
struct output_config *oc = NULL, *all = NULL;
int i;
for (i = 0; i < config->output_configs->length; ++i) {
struct output_config *cur = config->output_configs->items[i];
if (strcasecmp(name, cur->name) == 0) {
sway_log(L_DEBUG, "Matched output config for %s", name);
oc = cur;
}
if (strcasecmp("*", cur->name) == 0) {
sway_log(L_DEBUG, "Matched wildcard output config for %s", name);
all = cur;
}
if (oc && all) {
break;
}
}
if (!oc) {
oc = all;
}
if (oc && !oc->enabled) {
return NULL;
}
swayc_t *output = new_swayc(C_OUTPUT);
output->handle = handle;
output->name = name ? strdup(name) : NULL;
output->width = size->w;
output->height = size->h;
output->unmanaged = create_list();
output->bg_pid = 0;
apply_output_config(oc, output);
add_child(&root_container, output);
// Create workspace
char *ws_name = NULL;
swayc_t *ws = NULL;
if (name) {
for (i = 0; i < config->workspace_outputs->length; ++i) {
struct workspace_output *wso = config->workspace_outputs->items[i];
if (strcasecmp(wso->output, name) == 0) {
sway_log(L_DEBUG, "Matched workspace to output: %s for %s", wso->workspace, wso->output);
// Check if any other workspaces are using this name
if ((ws = workspace_by_name(wso->workspace))) {
// if yes, move those to this output, because they should be here
move_workspace_to(ws, output);
} else if (!ws_name) {
// set a workspace name in case we need to create a default one
ws_name = strdup(wso->workspace);
}
}
}
}
if (output->children->length == 0) {
if (!ws_name) {
ws_name = workspace_next_name(output->name);
}
// create and initialize default workspace
sway_log(L_DEBUG, "Creating default workspace %s", ws_name);
ws = new_workspace(output, ws_name);
ws->is_focused = true;
} else {
sort_workspaces(output);
set_focused_container(output->children->items[0]);
}
free(ws_name);
update_root_geometry();
return output;
}
swayc_t *new_workspace(swayc_t *output, const char *name) {
if (!ASSERT_NONNULL(output)) {
return NULL;
}
sway_log(L_DEBUG, "Added workspace %s for output %u", name, (unsigned int)output->handle);
swayc_t *workspace = new_swayc(C_WORKSPACE);
workspace->prev_layout = L_NONE;
workspace->layout = default_layout(output);
workspace->x = output->x;
workspace->y = output->y;
workspace->width = output->width;
workspace->height = output->height;
workspace->name = strdup(name);
workspace->visible = false;
workspace->floating = create_list();
add_child(output, workspace);
sort_workspaces(output);
return workspace;
}
swayc_t *new_container(swayc_t *child, enum swayc_layouts layout) {
if (!ASSERT_NONNULL(child)
&& !sway_assert(!child->is_floating, "cannot create container around floating window")) {
return NULL;
}
swayc_t *cont = new_swayc(C_CONTAINER);
sway_log(L_DEBUG, "creating container %p around %p", cont, child);
cont->prev_layout = L_NONE;
cont->layout = layout;
cont->width = child->width;
cont->height = child->height;
cont->x = child->x;
cont->y = child->y;
cont->visible = child->visible;
cont->cached_geometry = child->cached_geometry;
cont->gaps = child->gaps;
/* Container inherits all of workspaces children, layout and whatnot */
if (child->type == C_WORKSPACE) {
swayc_t *workspace = child;
// reorder focus
cont->focused = workspace->focused;
workspace->focused = cont;
// set all children focu to container
int i;
for (i = 0; i < workspace->children->length; ++i) {
((swayc_t *)workspace->children->items[i])->parent = cont;
}
// Swap children
list_t *tmp_list = workspace->children;
workspace->children = cont->children;
cont->children = tmp_list;
// add container to workspace chidren
add_child(workspace, cont);
// give them proper layouts
cont->layout = workspace->layout;
cont->prev_layout = workspace->prev_layout;
/* TODO: might break shit in move_container!!! workspace->layout = layout; */
set_focused_container_for(workspace, get_focused_view(workspace));
} else { // Or is built around container
swayc_t *parent = replace_child(child, cont);
if (parent) {
add_child(cont, child);
}
}
return cont;
}
swayc_t *new_view(swayc_t *sibling, wlc_handle handle) {
if (!ASSERT_NONNULL(sibling)) {
return NULL;
}
const char *title = wlc_view_get_title(handle);
swayc_t *view = new_swayc(C_VIEW);
sway_log(L_DEBUG, "Adding new view %" PRIuPTR ":%s to container %p %d",
handle, title, sibling, sibling ? sibling->type : 0);
// Setup values
view->handle = handle;
view->name = title ? strdup(title) : NULL;
const char *class = wlc_view_get_class(handle);
view->class = class ? strdup(class) : NULL;
const char *app_id = wlc_view_get_app_id(handle);
view->app_id = app_id ? strdup(app_id) : NULL;
view->visible = true;
view->is_focused = true;
view->sticky = false;
view->width = 0;
view->height = 0;
view->desired_width = -1;
view->desired_height = -1;
// setup border
view->border_type = config->border;
view->border_thickness = config->border_thickness;
view->is_floating = false;
if (sibling->type == C_WORKSPACE) {
// Case of focused workspace, just create as child of it
add_child(sibling, view);
} else {
// Regular case, create as sibling of current container
add_sibling(sibling, view);
}
return view;
}
swayc_t *new_floating_view(wlc_handle handle) {
if (swayc_active_workspace() == NULL) {
return NULL;
}
const char *title = wlc_view_get_title(handle);
swayc_t *view = new_swayc(C_VIEW);
sway_log(L_DEBUG, "Adding new view %" PRIuPTR ":%x:%s as a floating view",
handle, wlc_view_get_type(handle), title);
// Setup values
view->handle = handle;
view->name = title ? strdup(title) : NULL;
const char *class = wlc_view_get_class(handle);
view->class = class ? strdup(class) : NULL;
const char *app_id = wlc_view_get_app_id(handle);
view->app_id = app_id ? strdup(app_id) : NULL;
view->visible = true;
view->sticky = false;
// Set the geometry of the floating view
struct wlc_geometry geometry;
wlc_view_get_visible_geometry(handle, &geometry);
// give it requested geometry, but place in center
view->x = (swayc_active_workspace()->width - geometry.size.w) / 2;
view->y = (swayc_active_workspace()->height- geometry.size.h) / 2;
view->width = geometry.size.w;
view->height = geometry.size.h;
view->desired_width = view->width;
view->desired_height = view->height;
// setup border
view->border_type = config->floating_border;
view->border_thickness = config->floating_border_thickness;
view->is_floating = true;
// Case of focused workspace, just create as child of it
list_add(swayc_active_workspace()->floating, view);
view->parent = swayc_active_workspace();
if (swayc_active_workspace()->focused == NULL) {
set_focused_container_for(swayc_active_workspace(), view);
}
return view;
}
void floating_view_sane_size(swayc_t *view) {
// floating_minimum is used as sane value.
// floating_maximum has priority in case of conflict
// TODO: implement total_outputs_dimensions()
if (config->floating_minimum_height != -1 &&
view->desired_height < config->floating_minimum_height) {
view->desired_height = config->floating_minimum_height;
}
if (config->floating_minimum_width != -1 &&
view->desired_width < config->floating_minimum_width) {
view->desired_width = config->floating_minimum_width;
}
// if 0 do not resize, only enforce max value
if (config->floating_maximum_height == 0) {
// Missing total_outputs_dimensions() using swayc_active_workspace()
config->floating_maximum_height = swayc_active_workspace()->height;
} else if (config->floating_maximum_height != -1 &&
view->desired_height > config->floating_maximum_height) {
view->desired_height = config->floating_maximum_height;
}
// if 0 do not resize, only enforce max value
if (config->floating_maximum_width == 0) {
// Missing total_outputs_dimensions() using swayc_active_workspace()
config->floating_maximum_width = swayc_active_workspace()->width;
} else if (config->floating_maximum_width != -1 &&
view->desired_width > config->floating_maximum_width) {
view->desired_width = config->floating_maximum_width;
}
sway_log(L_DEBUG, "Sane values for view to %d x %d @ %.f, %.f",
view->desired_width, view->desired_height, view->x, view->y);
return;
}
// Destroy container
swayc_t *destroy_output(swayc_t *output) {
if (!ASSERT_NONNULL(output)) {
return NULL;
}
if (output->children->length > 0) {
// TODO save workspaces when there are no outputs.
// TODO also check if there will ever be no outputs except for exiting
// program
if (root_container.children->length > 1) {
int p = root_container.children->items[0] == output;
// Move workspace from this output to another output
while (output->children->length) {
swayc_t *child = output->children->items[0];
remove_child(child);
add_child(root_container.children->items[p], child);
}
sort_workspaces(root_container.children->items[p]);
update_visibility(root_container.children->items[p]);
arrange_windows(root_container.children->items[p], -1, -1);
}
}
sway_log(L_DEBUG, "OUTPUT: Destroying output '%" PRIuPTR "'", output->handle);
free_swayc(output);
update_root_geometry();
return &root_container;
}
swayc_t *destroy_workspace(swayc_t *workspace) {
if (!ASSERT_NONNULL(workspace)) {
return NULL;
}
// Do not destroy this if it's the last workspace on this output
swayc_t *output = swayc_parent_by_type(workspace, C_OUTPUT);
if (output && output->children->length == 1) {
return NULL;
}
swayc_t *parent = workspace->parent;
// destroy the WS if there are no children
if (workspace->children->length == 0 && workspace->floating->length == 0) {
sway_log(L_DEBUG, "destroying workspace '%s'", workspace->name);
ipc_event_workspace(workspace, NULL, "empty");
} else {
// Move children to a different workspace on this output
swayc_t *new_workspace = NULL;
int i;
for(i = 0; i < output->children->length; i++) {
if(output->children->items[i] != workspace) {
break;
}
}
new_workspace = output->children->items[i];
sway_log(L_DEBUG, "moving children to different workspace '%s' -> '%s'",
workspace->name, new_workspace->name);
for(i = 0; i < workspace->children->length; i++) {
move_container_to(workspace->children->items[i], new_workspace);
}
for(i = 0; i < workspace->floating->length; i++) {
move_container_to(workspace->floating->items[i], new_workspace);
}
}
free_swayc(workspace);
return parent;
}
swayc_t *destroy_container(swayc_t *container) {
if (!ASSERT_NONNULL(container)) {
return NULL;
}
while (container->children->length == 0 && container->type == C_CONTAINER) {
sway_log(L_DEBUG, "Container: Destroying container '%p'", container);
swayc_t *parent = container->parent;
free_swayc(container);
container = parent;
}
return container;
}
swayc_t *destroy_view(swayc_t *view) {
if (!ASSERT_NONNULL(view)) {
return NULL;
}
sway_log(L_DEBUG, "Destroying view '%p'", view);
swayc_t *parent = view->parent;
free_swayc(view);
// Destroy empty containers
if (parent->type == C_CONTAINER) {
return destroy_container(parent);
}
return parent;
}
// Container lookup
swayc_t *swayc_by_test(swayc_t *container, bool (*test)(swayc_t *view, void *data), void *data) {
if (!container->children) {
return NULL;
}
// Special case for checking floating stuff
int i;
if (container->type == C_WORKSPACE) {
for (i = 0; i < container->floating->length; ++i) {
swayc_t *child = container->floating->items[i];
if (test(child, data)) {
return child;
}
}
}
for (i = 0; i < container->children->length; ++i) {
swayc_t *child = container->children->items[i];
if (test(child, data)) {
return child;
} else {
swayc_t *res = swayc_by_test(child, test, data);
if (res) {
return res;
}
}
}
return NULL;
}
static bool test_name(swayc_t *view, void *data) {
if (!view || !view->name) {
return false;
}
return strcmp(view->name, data) == 0;
}
swayc_t *swayc_by_name(const char *name) {
return swayc_by_test(&root_container, test_name, (void *)name);
}
swayc_t *swayc_parent_by_type(swayc_t *container, enum swayc_types type) {
if (!ASSERT_NONNULL(container)) {
return NULL;
}
if (!sway_assert(type < C_TYPES && type >= C_ROOT, "invalid type")) {
return NULL;
}
do {
container = container->parent;
} while (container && container->type != type);
return container;
}
swayc_t *swayc_parent_by_layout(swayc_t *container, enum swayc_layouts layout) {
if (!ASSERT_NONNULL(container)) {
return NULL;
}
if (!sway_assert(layout < L_LAYOUTS && layout >= L_NONE, "invalid layout")) {
return NULL;
}
do {
container = container->parent;
} while (container && container->layout != layout);
return container;
}
swayc_t *swayc_focus_by_type(swayc_t *container, enum swayc_types type) {
if (!ASSERT_NONNULL(container)) {
return NULL;
}
if (!sway_assert(type < C_TYPES && type >= C_ROOT, "invalid type")) {
return NULL;
}
do {
container = container->focused;
} while (container && container->type != type);
return container;
}
swayc_t *swayc_focus_by_layout(swayc_t *container, enum swayc_layouts layout) {
if (!ASSERT_NONNULL(container)) {
return NULL;
}
if (!sway_assert(layout < L_LAYOUTS && layout >= L_NONE, "invalid layout")) {
return NULL;
}
do {
container = container->focused;
} while (container && container->layout != layout);
return container;
}
static swayc_t *_swayc_by_handle_helper(wlc_handle handle, swayc_t *parent) {
if (!parent || !parent->children) {
return NULL;
}
int i, len;
swayc_t **child;
if (parent->type == C_WORKSPACE) {
len = parent->floating->length;
child = (swayc_t **)parent->floating->items;
for (i = 0; i < len; ++i, ++child) {
if ((*child)->handle == handle) {
return *child;
}
}
}
len = parent->children->length;
child = (swayc_t**)parent->children->items;
for (i = 0; i < len; ++i, ++child) {
if ((*child)->handle == handle) {
return *child;
} else {
swayc_t *res;
if ((res = _swayc_by_handle_helper(handle, *child))) {
return res;
}
}
}
return NULL;
}
swayc_t *swayc_by_handle(wlc_handle handle) {
return _swayc_by_handle_helper(handle, &root_container);
}
swayc_t *swayc_active_output(void) {
return root_container.focused;
}
swayc_t *swayc_active_workspace(void) {
return root_container.focused ? root_container.focused->focused : NULL;
}
swayc_t *swayc_active_workspace_for(swayc_t *cont) {
if (!cont) {
return NULL;
}
switch (cont->type) {
case C_ROOT:
cont = cont->focused;
/* Fallthrough */
case C_OUTPUT:
cont = cont ? cont->focused : NULL;
/* Fallthrough */
case C_WORKSPACE:
return cont;
default:
return swayc_parent_by_type(cont, C_WORKSPACE);
}
}
static bool pointer_test(swayc_t *view, void *_origin) {
const struct wlc_point *origin = _origin;
// Determine the output that the view is under
swayc_t *parent = swayc_parent_by_type(view, C_OUTPUT);
if (origin->x >= view->x && origin->y >= view->y
&& origin->x < view->x + view->width && origin->y < view->y + view->height
&& view->visible && parent == root_container.focused) {
return true;
}
return false;
}
swayc_t *container_under_pointer(void) {
// root.output->workspace
if (!root_container.focused || !root_container.focused->focused) {
return NULL;
}
swayc_t *lookup = root_container.focused->focused;
// Case of empty workspace
if (lookup->children == 0) {
return NULL;
}
struct wlc_point origin;
wlc_pointer_get_position(&origin);
while (lookup && lookup->type != C_VIEW) {
int i;
int len;
// if tabbed/stacked go directly to focused container, otherwise search
// children
if (lookup->layout == L_TABBED || lookup->layout == L_STACKED) {
lookup = lookup->focused;
continue;
}
// if workspace, search floating
if (lookup->type == C_WORKSPACE) {
i = len = lookup->floating->length;
bool got_floating = false;
while (--i > -1) {
if (pointer_test(lookup->floating->items[i], &origin)) {
lookup = lookup->floating->items[i];
got_floating = true;
break;
}
}
if (got_floating) {
continue;
}
}
// search children
len = lookup->children->length;
for (i = 0; i < len; ++i) {
if (pointer_test(lookup->children->items[i], &origin)) {
lookup = lookup->children->items[i];
break;
}
}
// when border and titles are done, this could happen
if (i == len) {
break;
}
}
return lookup;
}
// Container information
bool swayc_is_fullscreen(swayc_t *view) {
return view && view->type == C_VIEW && (wlc_view_get_state(view->handle) & WLC_BIT_FULLSCREEN);
}
bool swayc_is_active(swayc_t *view) {
return view && view->type == C_VIEW && (wlc_view_get_state(view->handle) & WLC_BIT_ACTIVATED);
}
bool swayc_is_parent_of(swayc_t *parent, swayc_t *child) {
while (child != &root_container) {
child = child->parent;
if (child == parent) {
return true;
}
}
return false;
}
bool swayc_is_child_of(swayc_t *child, swayc_t *parent) {
return swayc_is_parent_of(parent, child);
}
bool swayc_is_empty_workspace(swayc_t *container) {
return container->type == C_WORKSPACE && container->children->length == 0;
}
int swayc_gap(swayc_t *container) {
if (container->type == C_VIEW || container->type == C_CONTAINER) {
return container->gaps >= 0 ? container->gaps : config->gaps_inner;
} else if (container->type == C_WORKSPACE) {
int base = container->gaps >= 0 ? container->gaps : config->gaps_outer;
if (config->edge_gaps && !(config->smart_gaps && container->children->length == 1)) {
// the inner gap is created via a margin around each window which
// is half the gap size, so the workspace also needs half a gap
// size to make the outermost gap the same size (excluding the
// actual "outer gap" size which is handled independently)
return base + config->gaps_inner / 2;
} else {
return base;
}
} else {
return 0;
}
}
// Mapping
void container_map(swayc_t *container, void (*f)(swayc_t *view, void *data), void *data) {
if (container) {
f(container, data);
int i;
if (container->children) {
for (i = 0; i < container->children->length; ++i) {
swayc_t *child = container->children->items[i];
container_map(child, f, data);
}
}
if (container->floating) {
for (i = 0; i < container->floating->length; ++i) {
swayc_t *child = container->floating->items[i];
container_map(child, f, data);
}
}
}
}
void update_visibility_output(swayc_t *container, wlc_handle output) {
// Inherit visibility
swayc_t *parent = container->parent;
container->visible = parent->visible;
// special cases where visibility depends on focus
if (parent->type == C_OUTPUT || parent->layout == L_TABBED ||
parent->layout == L_STACKED) {
container->visible = parent->focused == container && parent->visible;
}
// Set visibility and output for view
if (container->type == C_VIEW) {
wlc_view_set_output(container->handle, output);
wlc_view_set_mask(container->handle, container->visible ? VISIBLE : 0);
}
// Update visibility for children
else {
if (container->children) {
int i, len = container->children->length;
for (i = 0; i < len; ++i) {
update_visibility_output(container->children->items[i], output);
}
}
if (container->floating) {
int i, len = container->floating->length;
for (i = 0; i < len; ++i) {
update_visibility_output(container->floating->items[i], output);
}
}
}
}
void update_visibility(swayc_t *container) {
if (!container) return;
switch (container->type) {
case C_ROOT:
container->visible = true;
if (container->children) {
int i, len = container->children->length;
for (i = 0; i < len; ++i) {
update_visibility(container->children->items[i]);
}
}
return;
case C_OUTPUT:
container->visible = true;
if (container->children) {
int i, len = container->children->length;
for (i = 0; i < len; ++i) {
update_visibility_output(container->children->items[i], container->handle);
}
}
return;
default:
{
swayc_t *op = swayc_parent_by_type(container, C_OUTPUT);
update_visibility_output(container, op->handle);
}
}
}
void set_gaps(swayc_t *view, void *_data) {
int *data = _data;
if (!ASSERT_NONNULL(view)) {
return;
}
if (view->type == C_WORKSPACE || view->type == C_VIEW) {
view->gaps = *data;
}
}
void add_gaps(swayc_t *view, void *_data) {
int *data = _data;
if (!ASSERT_NONNULL(view)) {
return;
}
if (view->type == C_WORKSPACE || view->type == C_VIEW) {
if ((view->gaps += *data) < 0) {
view->gaps = 0;
}
}
}
static void close_view(swayc_t *container, void *data) {
if (container->type == C_VIEW) {
wlc_view_close(container->handle);
}
}
void close_views(swayc_t *container) {
container_map(container, close_view, NULL);
}
swayc_t *swayc_tabbed_stacked_parent(swayc_t *view) {
swayc_t *parent = NULL;
if (!ASSERT_NONNULL(view)) {
return NULL;
}
while (view->type != C_WORKSPACE && view->parent && view->parent->type != C_WORKSPACE) {
view = view->parent;
if (view->layout == L_TABBED || view->layout == L_STACKED) {
parent = view;
}
}
return parent;
}