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#define _POSIX_C_SOURCE 200809L
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#include <ctype.h>
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#include <math.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_output_layout.h>
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#include "sway/container.h"
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#include "sway/layout.h"
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#include "sway/output.h"
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#include "sway/view.h"
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#include "sway/input/seat.h"
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#include "list.h"
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#include "log.h"
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swayc_t root_container;
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static void output_layout_change_notify(struct wl_listener *listener, void *data) {
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struct wlr_box *layout_box = wlr_output_layout_get_box(
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root_container.sway_root->output_layout, NULL);
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root_container.width = layout_box->width;
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root_container.height = layout_box->height;
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for (int i = 0 ; i < root_container.children->length; ++i) {
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swayc_t *output_container = root_container.children->items[i];
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if (output_container->type != C_OUTPUT) {
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continue;
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}
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struct sway_output *output = output_container->sway_output;
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struct wlr_box *output_box = wlr_output_layout_get_box(
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root_container.sway_root->output_layout, output->wlr_output);
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if (!output_box) {
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continue;
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}
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output_container->x = output_box->x;
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output_container->y = output_box->y;
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output_container->width = output_box->width;
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output_container->height = output_box->height;
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}
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arrange_windows(&root_container, -1, -1);
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}
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void init_layout(void) {
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root_container.id = 0; // normally assigned in new_swayc()
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root_container.type = C_ROOT;
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root_container.layout = L_NONE;
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root_container.name = strdup("root");
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root_container.children = create_list();
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wl_signal_init(&root_container.events.destroy);
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root_container.sway_root = calloc(1, sizeof(*root_container.sway_root));
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root_container.sway_root->output_layout = wlr_output_layout_create();
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wl_list_init(&root_container.sway_root->unmanaged_views);
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wl_signal_init(&root_container.sway_root->events.new_container);
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root_container.sway_root->output_layout_change.notify =
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output_layout_change_notify;
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wl_signal_add(&root_container.sway_root->output_layout->events.change,
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&root_container.sway_root->output_layout_change);
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}
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static int index_child(const swayc_t *child) {
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// TODO handle floating
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swayc_t *parent = child->parent;
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int i, len;
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len = parent->children->length;
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for (i = 0; i < len; ++i) {
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if (parent->children->items[i] == child) {
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break;
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}
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}
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if (!sway_assert(i < len, "Stray container")) {
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return -1;
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}
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return i;
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}
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swayc_t *add_sibling(swayc_t *fixed, swayc_t *active) {
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// TODO handle floating
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swayc_t *parent = fixed->parent;
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int i = index_child(fixed);
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list_insert(parent->children, i + 1, active);
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active->parent = parent;
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return active->parent;
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}
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void add_child(swayc_t *parent, swayc_t *child) {
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wlr_log(L_DEBUG, "Adding %p (%d, %fx%f) to %p (%d, %fx%f)",
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child, child->type, child->width, child->height,
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parent, parent->type, parent->width, parent->height);
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list_add(parent->children, child);
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child->parent = parent;
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// set focus for this container
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/* TODO WLR
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if (parent->type == C_WORKSPACE && child->type == C_VIEW && (parent->workspace_layout == L_TABBED || parent->workspace_layout == L_STACKED)) {
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child = new_container(child, parent->workspace_layout);
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}
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*/
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}
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swayc_t *remove_child(swayc_t *child) {
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int i;
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swayc_t *parent = child->parent;
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for (i = 0; i < parent->children->length; ++i) {
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if (parent->children->items[i] == child) {
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list_del(parent->children, i);
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break;
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}
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}
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child->parent = NULL;
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return parent;
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}
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enum swayc_layouts default_layout(swayc_t *output) {
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/* TODO WLR
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if (config->default_layout != L_NONE) {
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//return config->default_layout;
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} else if (config->default_orientation != L_NONE) {
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return config->default_orientation;
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} else */if (output->width >= output->height) {
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return L_HORIZ;
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} else {
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return L_VERT;
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}
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}
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static int sort_workspace_cmp_qsort(const void *_a, const void *_b) {
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swayc_t *a = *(void **)_a;
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swayc_t *b = *(void **)_b;
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int retval = 0;
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if (isdigit(a->name[0]) && isdigit(b->name[0])) {
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int a_num = strtol(a->name, NULL, 10);
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int b_num = strtol(b->name, NULL, 10);
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retval = (a_num < b_num) ? -1 : (a_num > b_num);
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} else if (isdigit(a->name[0])) {
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retval = -1;
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} else if (isdigit(b->name[0])) {
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retval = 1;
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}
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return retval;
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}
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void sort_workspaces(swayc_t *output) {
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list_stable_sort(output->children, sort_workspace_cmp_qsort);
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}
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static void apply_horiz_layout(swayc_t *container, const double x,
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const double y, const double width,
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const double height, const int start,
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const int end);
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static void apply_vert_layout(swayc_t *container, const double x,
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const double y, const double width,
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const double height, const int start,
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const int end);
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void arrange_windows(swayc_t *container, double width, double height) {
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int i;
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if (width == -1 || height == -1) {
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width = container->width;
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height = container->height;
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}
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// pixels are indivisible. if we don't round the pixels, then the view
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// calculations will be off (e.g. 50.5 + 50.5 = 101, but in reality it's
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// 50 + 50 = 100). doing it here cascades properly to all width/height/x/y.
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width = floor(width);
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height = floor(height);
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wlr_log(L_DEBUG, "Arranging layout for %p %s %fx%f+%f,%f", container,
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container->name, container->width, container->height, container->x,
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container->y);
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double x = 0, y = 0;
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switch (container->type) {
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case C_ROOT:
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// TODO: wlr_output_layout probably
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for (i = 0; i < container->children->length; ++i) {
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swayc_t *output = container->children->items[i];
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wlr_log(L_DEBUG, "Arranging output '%s' at %f,%f",
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output->name, output->x, output->y);
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arrange_windows(output, -1, -1);
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}
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return;
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case C_OUTPUT:
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{
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int _width, _height;
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wlr_output_effective_resolution(
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container->sway_output->wlr_output, &_width, &_height);
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width = container->width = _width;
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height = container->height = _height;
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}
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// arrange all workspaces:
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for (i = 0; i < container->children->length; ++i) {
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swayc_t *child = container->children->items[i];
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arrange_windows(child, -1, -1);
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}
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return;
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case C_WORKSPACE:
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{
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swayc_t *output = swayc_parent_by_type(container, C_OUTPUT);
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container->width = output->width;
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container->height = output->height;
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container->x = x;
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container->y = y;
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wlr_log(L_DEBUG, "Arranging workspace '%s' at %f, %f",
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container->name, container->x, container->y);
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}
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// children are properly handled below
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break;
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case C_VIEW:
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{
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container->width = width;
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container->height = height;
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view_set_size(container->sway_view,
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container->width, container->height);
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wlr_log(L_DEBUG, "Set view to %.f x %.f @ %.f, %.f",
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container->width, container->height,
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container->x, container->y);
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}
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return;
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default:
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container->width = width;
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container->height = height;
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x = container->x;
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y = container->y;
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break;
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}
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switch (container->layout) {
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case L_HORIZ:
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apply_horiz_layout(container, x, y, width, height, 0,
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container->children->length);
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break;
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case L_VERT:
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apply_vert_layout(container, x, y, width, height, 0,
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container->children->length);
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break;
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default:
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wlr_log(L_DEBUG, "TODO: arrange layout type %d", container->layout);
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apply_horiz_layout(container, x, y, width, height, 0,
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container->children->length);
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break;
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}
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}
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static void apply_horiz_layout(swayc_t *container,
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const double x, const double y,
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const double width, const double height,
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const int start, const int end) {
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double scale = 0;
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// Calculate total width
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for (int i = start; i < end; ++i) {
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double *old_width = &((swayc_t *)container->children->items[i])->width;
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if (*old_width <= 0) {
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if (end - start > 1) {
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*old_width = width / (end - start - 1);
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} else {
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*old_width = width;
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}
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}
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scale += *old_width;
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}
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scale = width / scale;
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// Resize windows
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double child_x = x;
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if (scale > 0.1) {
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wlr_log(L_DEBUG, "Arranging %p horizontally", container);
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for (int i = start; i < end; ++i) {
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swayc_t *child = container->children->items[i];
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wlr_log(L_DEBUG,
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"Calculating arrangement for %p:%d (will scale %f by %f)",
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child, child->type, width, scale);
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view_set_position(child->sway_view, child_x, y);
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if (i == end - 1) {
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double remaining_width = x + width - child_x;
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arrange_windows(child, remaining_width, height);
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} else {
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arrange_windows(child, child->width * scale, height);
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}
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child_x += child->width;
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}
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// update focused view border last because it may
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// depend on the title bar geometry of its siblings.
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/* TODO WLR
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if (focused && container->children->length > 1) {
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update_container_border(focused);
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}
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*/
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}
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}
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void apply_vert_layout(swayc_t *container,
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const double x, const double y,
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const double width, const double height, const int start,
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const int end) {
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int i;
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double scale = 0;
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// Calculate total height
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for (i = start; i < end; ++i) {
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double *old_height = &((swayc_t *)container->children->items[i])->height;
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if (*old_height <= 0) {
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if (end - start > 1) {
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*old_height = height / (end - start - 1);
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} else {
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*old_height = height;
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}
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}
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scale += *old_height;
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}
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scale = height / scale;
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// Resize
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double child_y = y;
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if (scale > 0.1) {
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wlr_log(L_DEBUG, "Arranging %p vertically", container);
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for (i = start; i < end; ++i) {
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swayc_t *child = container->children->items[i];
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wlr_log(L_DEBUG,
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"Calculating arrangement for %p:%d (will scale %f by %f)",
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child, child->type, height, scale);
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view_set_position(child->sway_view, x, child_y);
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if (i == end - 1) {
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double remaining_height = y + height - child_y;
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arrange_windows(child, width, remaining_height);
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} else {
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arrange_windows(child, width, child->height * scale);
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}
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child_y += child->height;
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}
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// update focused view border last because it may
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// depend on the title bar geometry of its siblings.
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/* TODO WLR
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if (focused && container->children->length > 1) {
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update_container_border(focused);
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}
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*/
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}
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}
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/**
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* Get swayc in the direction of newly entered output.
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*/
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static swayc_t *get_swayc_in_output_direction(swayc_t *output,
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enum movement_direction dir, struct sway_seat *seat) {
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// XXX is this really a seat function or can we do it with the default
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// seat?
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if (!output) {
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return NULL;
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}
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swayc_t *ws = sway_seat_get_focus_inactive(seat, output);
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if (ws->type != C_WORKSPACE) {
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ws = swayc_parent_by_type(ws, C_WORKSPACE);
|
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|
|
}
|
|
|
|
|
|
|
|
if (ws == NULL) {
|
|
|
|
wlr_log(L_ERROR, "got an output without a workspace");
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ws->children->length > 0) {
|
|
|
|
switch (dir) {
|
|
|
|
case MOVE_LEFT:
|
|
|
|
// get most right child of new output
|
|
|
|
return ws->children->items[ws->children->length-1];
|
|
|
|
case MOVE_RIGHT:
|
|
|
|
// get most left child of new output
|
|
|
|
return ws->children->items[0];
|
|
|
|
case MOVE_UP:
|
|
|
|
case MOVE_DOWN: {
|
|
|
|
swayc_t *focused = sway_seat_get_focus_inactive(seat, ws);
|
|
|
|
if (focused && focused->parent) {
|
|
|
|
swayc_t *parent = focused->parent;
|
|
|
|
if (parent->layout == L_VERT) {
|
|
|
|
if (dir == MOVE_UP) {
|
|
|
|
// get child furthest down on new output
|
|
|
|
return parent->children->items[parent->children->length-1];
|
|
|
|
} else if (dir == MOVE_DOWN) {
|
|
|
|
// get child furthest up on new output
|
|
|
|
return parent->children->items[0];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return focused;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return ws;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void get_layout_center_position(swayc_t *container, int *x, int *y) {
|
|
|
|
// FIXME view coords are inconsistently referred to in layout/output systems
|
|
|
|
if (container->type == C_OUTPUT) {
|
|
|
|
*x = container->x + container->width/2;
|
|
|
|
*y = container->y + container->height/2;
|
|
|
|
} else {
|
|
|
|
swayc_t *output = swayc_parent_by_type(container, C_OUTPUT);
|
|
|
|
if (container->type == C_WORKSPACE) {
|
|
|
|
// Workspace coordinates are actually wrong/arbitrary, but should
|
|
|
|
// be same as output.
|
|
|
|
*x = output->x;
|
|
|
|
*y = output->y;
|
|
|
|
} else {
|
|
|
|
*x = output->x + container->x;
|
|
|
|
*y = output->y + container->y;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool sway_dir_to_wlr(enum movement_direction dir, enum wlr_direction *out) {
|
|
|
|
*out = 0;
|
|
|
|
switch (dir) {
|
|
|
|
case MOVE_UP:
|
|
|
|
*out = WLR_DIRECTION_UP;
|
|
|
|
break;
|
|
|
|
case MOVE_DOWN:
|
|
|
|
*out = WLR_DIRECTION_DOWN;
|
|
|
|
break;
|
|
|
|
case MOVE_LEFT:
|
|
|
|
*out = WLR_DIRECTION_LEFT;
|
|
|
|
break;
|
|
|
|
case MOVE_RIGHT:
|
|
|
|
*out = WLR_DIRECTION_RIGHT;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return *out != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static swayc_t *sway_output_from_wlr(struct wlr_output *output) {
|
|
|
|
if (output == NULL) {
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
for (int i = 0; i < root_container.children->length; ++i) {
|
|
|
|
swayc_t *o = root_container.children->items[i];
|
|
|
|
if (o->type == C_OUTPUT && o->sway_output->wlr_output == output) {
|
|
|
|
return o;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static swayc_t *get_swayc_in_direction_under(swayc_t *container,
|
|
|
|
enum movement_direction dir, struct sway_seat *seat, swayc_t *limit) {
|
|
|
|
if (dir == MOVE_CHILD) {
|
|
|
|
return sway_seat_get_focus_inactive(seat, container);
|
|
|
|
}
|
|
|
|
|
|
|
|
swayc_t *parent = container->parent;
|
|
|
|
if (dir == MOVE_PARENT) {
|
|
|
|
if (parent->type == C_OUTPUT) {
|
|
|
|
return NULL;
|
|
|
|
} else {
|
|
|
|
return parent;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dir == MOVE_PREV || dir == MOVE_NEXT) {
|
|
|
|
int focused_idx = index_child(container);
|
|
|
|
if (focused_idx == -1) {
|
|
|
|
return NULL;
|
|
|
|
} else {
|
|
|
|
int desired = (focused_idx + (dir == MOVE_NEXT ? 1 : -1)) %
|
|
|
|
parent->children->length;
|
|
|
|
if (desired < 0) {
|
|
|
|
desired += parent->children->length;
|
|
|
|
}
|
|
|
|
return parent->children->items[desired];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// If moving to an adjacent output we need a starting position (since this
|
|
|
|
// output might border to multiple outputs).
|
|
|
|
//struct wlc_point abs_pos;
|
|
|
|
//get_layout_center_position(container, &abs_pos);
|
|
|
|
|
|
|
|
|
|
|
|
// TODO WLR fullscreen
|
|
|
|
/*
|
|
|
|
if (container->type == C_VIEW && swayc_is_fullscreen(container)) {
|
|
|
|
wlr_log(L_DEBUG, "Moving from fullscreen view, skipping to output");
|
|
|
|
container = swayc_parent_by_type(container, C_OUTPUT);
|
|
|
|
get_layout_center_position(container, &abs_pos);
|
|
|
|
swayc_t *output = swayc_adjacent_output(container, dir, &abs_pos, true);
|
|
|
|
return get_swayc_in_output_direction(output, dir);
|
|
|
|
}
|
|
|
|
if (container->type == C_WORKSPACE && container->fullscreen) {
|
|
|
|
sway_log(L_DEBUG, "Moving to fullscreen view");
|
|
|
|
return container->fullscreen;
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
|
|
|
|
swayc_t *wrap_candidate = NULL;
|
|
|
|
while (true) {
|
|
|
|
// Test if we can even make a difference here
|
|
|
|
bool can_move = false;
|
|
|
|
int desired;
|
|
|
|
int idx = index_child(container);
|
|
|
|
if (parent->type == C_ROOT) {
|
|
|
|
enum wlr_direction wlr_dir = 0;
|
|
|
|
if (!sway_assert(sway_dir_to_wlr(dir, &wlr_dir),
|
|
|
|
"got invalid direction: %d", dir)) {
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
int lx, ly;
|
|
|
|
get_layout_center_position(container, &lx, &ly);
|
|
|
|
struct wlr_output_layout *layout = root_container.sway_root->output_layout;
|
|
|
|
struct wlr_output *wlr_adjacent =
|
|
|
|
wlr_output_layout_adjacent_output(layout, wlr_dir,
|
|
|
|
container->sway_output->wlr_output, lx, ly);
|
|
|
|
swayc_t *adjacent = sway_output_from_wlr(wlr_adjacent);
|
|
|
|
|
|
|
|
if (!adjacent || adjacent == container) {
|
|
|
|
return wrap_candidate;
|
|
|
|
}
|
|
|
|
swayc_t *next = get_swayc_in_output_direction(adjacent, dir, seat);
|
|
|
|
if (next->children->length) {
|
|
|
|
// TODO consider floating children as well
|
|
|
|
return sway_seat_get_focus_inactive(seat, next);
|
|
|
|
} else {
|
|
|
|
return next;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (dir == MOVE_LEFT || dir == MOVE_RIGHT) {
|
|
|
|
if (parent->layout == L_HORIZ || parent->layout == L_TABBED) {
|
|
|
|
can_move = true;
|
|
|
|
desired = idx + (dir == MOVE_LEFT ? -1 : 1);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (parent->layout == L_VERT || parent->layout == L_STACKED) {
|
|
|
|
can_move = true;
|
|
|
|
desired = idx + (dir == MOVE_UP ? -1 : 1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (can_move) {
|
|
|
|
// TODO handle floating
|
|
|
|
if (desired < 0 || desired >= parent->children->length) {
|
|
|
|
can_move = false;
|
|
|
|
int len = parent->children->length;
|
|
|
|
if (!wrap_candidate && len > 1) {
|
|
|
|
if (desired < 0) {
|
|
|
|
wrap_candidate = parent->children->items[len-1];
|
|
|
|
} else {
|
|
|
|
wrap_candidate = parent->children->items[0];
|
|
|
|
}
|
|
|
|
if (config->force_focus_wrapping) {
|
|
|
|
return wrap_candidate;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
wlr_log(L_DEBUG, "%s cont %d-%p dir %i sibling %d: %p", __func__,
|
|
|
|
idx, container, dir, desired, parent->children->items[desired]);
|
|
|
|
return parent->children->items[desired];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!can_move) {
|
|
|
|
container = parent;
|
|
|
|
parent = parent->parent;
|
|
|
|
if (!parent || container == limit) {
|
|
|
|
// wrapping is the last chance
|
|
|
|
return wrap_candidate;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
swayc_t *get_swayc_in_direction(swayc_t *container, struct sway_seat *seat,
|
|
|
|
enum movement_direction dir) {
|
|
|
|
return get_swayc_in_direction_under(container, dir, seat, NULL);
|
|
|
|
}
|