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586 lines
16 KiB
586 lines
16 KiB
#include <stdlib.h>
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#include <stdbool.h>
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#include <wlc/wlc.h>
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#include "layout.h"
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#include "log.h"
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#include "list.h"
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#include "config.h"
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#include "container.h"
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#include "workspace.h"
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#include "focus.h"
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swayc_t root_container;
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int min_sane_h = 60;
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int min_sane_w = 100;
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void init_layout(void) {
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root_container.type = C_ROOT;
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root_container.layout = L_NONE;
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root_container.children = create_list();
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root_container.handle = -1;
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root_container.visible = true;
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}
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int index_child(const swayc_t *child) {
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swayc_t *parent = child->parent;
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int i, 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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void add_child(swayc_t *parent, swayc_t *child) {
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sway_log(L_DEBUG, "Adding %p (%d, %fx%f) to %p (%d, %fx%f)", child, child->type,
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child->width, child->height, 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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if (!parent->focused) {
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parent->focused = child;
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}
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}
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void insert_child(swayc_t *parent, swayc_t *child, int index) {
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if (index > parent->children->length) {
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index = parent->children->length;
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}
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if (index < 0) {
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index = 0;
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}
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list_insert(parent->children, index, child);
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child->parent = parent;
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if (!parent->focused) {
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parent->focused = child;
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}
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}
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void add_floating(swayc_t *ws, swayc_t *child) {
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sway_log(L_DEBUG, "Adding %p (%d, %fx%f) to %p (%d, %fx%f)", child, child->type,
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child->width, child->height, ws, ws->type, ws->width, ws->height);
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if (!sway_assert(ws->type == C_WORKSPACE, "Must be of workspace type")) {
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return;
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}
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list_add(ws->floating, child);
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child->parent = ws;
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child->is_floating = true;
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if (!ws->focused) {
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ws->focused = child;
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}
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}
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swayc_t *add_sibling(swayc_t *sibling, swayc_t *child) {
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swayc_t *parent = sibling->parent;
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int i = index_child(sibling);
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list_insert(parent->children, i+1, child);
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child->parent = parent;
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return child->parent;
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}
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swayc_t *replace_child(swayc_t *child, swayc_t *new_child) {
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swayc_t *parent = child->parent;
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if (parent == NULL) {
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return NULL;
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}
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int i = index_child(child);
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parent->children->items[i] = new_child;
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// Set parent and focus for new_child
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new_child->parent = child->parent;
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if (child->parent->focused == child) {
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child->parent->focused = new_child;
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}
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child->parent = NULL;
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// Set geometry for new child
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new_child->x = child->x;
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new_child->y = child->y;
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new_child->width = child->width;
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new_child->height = child->height;
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// reset geometry for child
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child->width = 0;
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child->height = 0;
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// deactivate child
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if (child->type == C_VIEW) {
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wlc_view_set_state(child->handle, WLC_BIT_ACTIVATED, false);
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}
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return parent;
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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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if (child->is_floating) {
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// Special case for floating views
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for (i = 0; i < parent->floating->length; ++i) {
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if (parent->floating->items[i] == child) {
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list_del(parent->floating, i);
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break;
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}
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}
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i = 0;
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} else {
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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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}
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// Set focused to new container
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if (parent->focused == child) {
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if (parent->children->length > 0) {
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parent->focused = parent->children->items[i ? i-1:0];
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} else if (parent->floating && parent->floating->length) {
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parent->focused = parent->floating->items[parent->floating->length - 1];
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} else {
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parent->focused = NULL;
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}
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}
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child->parent = NULL;
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// deactivate view
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if (child->type == C_VIEW) {
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wlc_view_set_state(child->handle, WLC_BIT_ACTIVATED, false);
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}
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return parent;
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}
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void swap_container(swayc_t *a, swayc_t *b) {
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//TODO doesnt handle floating <-> tiling swap
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if (!sway_assert(a&&b, "parameters must be non null") ||
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!sway_assert(a->parent && b->parent, "containers must have parents")) {
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return;
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}
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size_t a_index = index_child(a);
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size_t b_index = index_child(b);
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swayc_t *a_parent = a->parent;
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swayc_t *b_parent = b->parent;
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// Swap the pointers
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a_parent->children->items[a_index] = b;
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b_parent->children->items[b_index] = a;
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a->parent = b_parent;
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b->parent = a_parent;
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if (a_parent->focused == a) {
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a_parent->focused = b;
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}
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// dont want to double switch
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if (b_parent->focused == b && a_parent != b_parent) {
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b_parent->focused = a;
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}
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}
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void swap_geometry(swayc_t *a, swayc_t *b) {
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double x = a->x;
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double y = a->y;
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double w = a->width;
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double h = a->height;
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a->x = b->x;
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a->y = b->y;
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a->width = b->width;
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a->height = b->height;
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b->x = x;
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b->y = y;
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b->width = w;
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b->height = h;
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}
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// TODO fix workspace movement, as in
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// [a][b][c] => |move b| => [aa][cc]
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// [a][b][c] => |down | => [bbbbbb]
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//
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void move_container(swayc_t *container, enum movement_direction dir) {
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enum swayc_layouts layout;
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if (dir == MOVE_UP || dir == MOVE_DOWN) {
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layout = L_VERT;
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} else if (dir == MOVE_LEFT || dir == MOVE_RIGHT) {
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layout = L_HORIZ;
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} else {
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return;
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}
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swayc_t *parent = container->parent;
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swayc_t *child = container;
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while (true) {
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sway_log(L_DEBUG, "container:%p, parent:%p, child %p,",
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container,parent,child);
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if (parent->layout == layout) {
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int diff;
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// When child == container the container is removed,
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// so when inserting it back in, it needs to be -1, or 1
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// inserts at 1-1 or 1+1
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// 0 1 2 3 => 0 1 2 => 0 1 2 3 or 0 1 2 3
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// |0|1|2| => |0|2| => |1|0|2| or |0|2|1|
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// When child != container, no container is removed
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// inserts at 1+0 or 1+1
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// 0 1 2 3 => 0 1 2 3 4 or 0 1 2 3 4
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// |0|1|2| => |0|n|1|2| or |0|1|n|2|
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if (child == container) {
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diff = dir == MOVE_LEFT || dir == MOVE_UP ? -1 : 1;
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} else {
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diff = dir == MOVE_LEFT || dir == MOVE_UP ? 0 : 1;
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}
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int desired = index_child(child) + diff;
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// Legal position
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// when child == container, desired must be less then parent,
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// when child != container, desired can be equal to parent length
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if (desired >= 0 && desired - (child != container) < parent->children->length) {
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// Case where we descend into a container
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if (child == container) {
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child = parent->children->items[desired];
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// Move container Into child container.
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if (child->type == C_CONTAINER) {
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parent = child;
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desired = index_child(child->focused);
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//reset geometry
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container->width = container->height = 0;
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}
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}
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swayc_t *old_parent = remove_child(container);
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insert_child(parent, container, desired);
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destroy_container(old_parent);
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sway_log(L_DEBUG,"Moving to %p %d",parent, desired);
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break;
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}
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}
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child = parent;
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parent = child->parent;
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if (!parent || child->type == C_WORKSPACE) {
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sway_log(L_DEBUG, "Failed to move container");
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return;
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}
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}
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arrange_windows(parent->parent, -1, -1);
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update_visibility(parent->parent);
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set_focused_container_for(parent->parent, container);
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}
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void move_container_to(swayc_t* container, swayc_t* destination) {
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if (container == destination && swayc_is_parent_of(container, destination)) {
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return;
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}
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swayc_t *parent = remove_child(container);
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// reset container geometry
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container->width = container->height = 0;
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// Send to new destination
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if (container->is_floating) {
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add_floating(swayc_active_workspace_for(destination), container);
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} else if (destination->type == C_WORKSPACE) {
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add_child(destination, container);
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} else {
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add_sibling(destination, container);
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}
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// Destroy old container if we need to
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parent = destroy_container(parent);
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// Refocus
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swayc_t *op1 = swayc_parent_by_type(destination, C_OUTPUT);
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swayc_t *op2 = swayc_parent_by_type(parent, C_OUTPUT);
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set_focused_container(get_focused_view(op1));
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arrange_windows(op1, -1, -1);
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update_visibility(op1);
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if (op1 != op2) {
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set_focused_container(get_focused_view(op2));
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arrange_windows(op2, -1, -1);
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update_visibility(op2);
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}
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}
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void update_geometry(swayc_t *container) {
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if (container->type != C_VIEW) {
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return;
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}
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struct wlc_geometry geometry = {
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.origin = {
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.x = container->x + (container->is_floating ? 0 : container->gaps / 2),
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.y = container->y + (container->is_floating ? 0 : container->gaps / 2)
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},
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.size = {
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.w = container->width - (container->is_floating ? 0 : container->gaps),
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.h = container->height - (container->is_floating ? 0 : container->gaps)
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}
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};
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if (swayc_is_fullscreen(container)) {
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swayc_t *parent = swayc_parent_by_type(container, C_OUTPUT);
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geometry.origin.x = 0;
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geometry.origin.y = 0;
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geometry.size.w = parent->width;
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geometry.size.h = parent->height;
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}
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wlc_view_set_geometry(container->handle, 0, &geometry);
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return;
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}
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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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sway_log(L_DEBUG, "Arranging layout for %p", container);
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width = container->width;
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height = container->height;
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}
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int x = 0, y = 0;
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switch (container->type) {
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case C_ROOT:
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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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sway_log(L_DEBUG, "Arranging output at %d", x);
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arrange_windows(child, -1, -1);
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x += child->width;
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}
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return;
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case C_OUTPUT:
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container->width = width;
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container->height = height;
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x = 0, y = 0;
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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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child->x = x + container->gaps;
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child->y = y + container->gaps;
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child->width = width - container->gaps * 2;
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child->height = height - container->gaps * 2;
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sway_log(L_DEBUG, "Arranging workspace #%d at %f, %f", i, child->x, child->y);
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arrange_windows(child, -1, -1);
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}
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return;
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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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update_geometry(container);
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sway_log(L_DEBUG, "Set view to %.f x %.f @ %.f, %.f", container->width,
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container->height, 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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break;
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}
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x = y = 0;
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double scale = 0;
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switch (container->layout) {
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case L_HORIZ:
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default:
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// Calculate total width
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for (i = 0; i < container->children->length; ++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 (container->children->length > 1) {
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*old_width = width / (container->children->length - 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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// Resize windows
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if (scale > 0.1) {
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scale = width / scale;
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sway_log(L_DEBUG, "Arranging %p horizontally", container);
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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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sway_log(L_DEBUG, "Calculating arrangement for %p:%d (will scale %f by %f)", child, child->type, width, scale);
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child->x = x + container->x;
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child->y = y + container->y;
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arrange_windows(child, child->width * scale, height);
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x += child->width;
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}
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}
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break;
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case L_VERT:
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// Calculate total height
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for (i = 0; i < container->children->length; ++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 (container->children->length > 1) {
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*old_height = height / (container->children->length - 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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// Resize
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if (scale > 0.1) {
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scale = height / scale;
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sway_log(L_DEBUG, "Arranging %p vertically", container);
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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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sway_log(L_DEBUG, "Calculating arrangement for %p:%d (will scale %f by %f)", child, child->type, height, scale);
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child->x = x + container->x;
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child->y = y + container->y;
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arrange_windows(child, width, child->height * scale);
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y += child->height;
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}
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}
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break;
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}
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// Arrage floating layouts for workspaces last
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if (container->type == C_WORKSPACE) {
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for (i = 0; i < container->floating->length; ++i) {
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swayc_t *view = container->floating->items[i];
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if (view->type == C_VIEW) {
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update_geometry(view);
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if (swayc_is_fullscreen(view)) {
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wlc_view_bring_to_front(view->handle);
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} else if (!container->focused
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|| !swayc_is_fullscreen(container->focused)) {
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wlc_view_bring_to_front(view->handle);
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}
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}
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}
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}
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layout_log(&root_container, 0);
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}
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swayc_t *get_swayc_in_direction_under(swayc_t *container, enum movement_direction dir, swayc_t *limit) {
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swayc_t *parent = container->parent;
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if (dir == MOVE_PARENT) {
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if (parent->type == C_OUTPUT) {
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return NULL;
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} else {
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return parent;
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}
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}
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while (true) {
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// Test if we can even make a difference here
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bool can_move = false;
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int diff = 0;
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int i;
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if (parent->type == C_ROOT) {
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// Find the next output
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int target = -1, max_x = 0, max_y = 0, self = -1;
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sway_log(L_DEBUG, "Moving between outputs");
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for (i = 0; i < parent->children->length; ++i) {
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swayc_t *next = parent->children->items[i];
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if (next == container) {
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self = i;
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sway_log(L_DEBUG, "self is %p %d", next, self);
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continue;
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}
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if (next->type == C_OUTPUT) {
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sway_log(L_DEBUG, "Testing with %p %d (dir %d)", next, i, dir);
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// Check if it's more extreme
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if (dir == MOVE_RIGHT) {
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if (container->x + container->width <= next->x) {
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if (target == -1 || next->x < max_x) {
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target = i;
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max_x = next->x;
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}
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}
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} else if (dir == MOVE_LEFT) {
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if (container->x >= next->x + next->width) {
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if (target == -1 || max_x < next->x) {
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target = i;
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max_x = next->x;
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}
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}
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} else if (dir == MOVE_DOWN) {
|
|
if (container->y + container->height <= next->y) {
|
|
if (target == -1 || next->y < max_y) {
|
|
target = i;
|
|
max_y = next->y;
|
|
}
|
|
}
|
|
} else if (dir == MOVE_UP) {
|
|
if (container->y >= next->y + next->height) {
|
|
if (target == -1 || max_y < next->y) {
|
|
target = i;
|
|
max_y = next->y;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (target == -1) {
|
|
can_move = false;
|
|
} else {
|
|
can_move = true;
|
|
diff = target - self;
|
|
}
|
|
}
|
|
else {
|
|
if (dir == MOVE_LEFT || dir == MOVE_RIGHT) {
|
|
if (parent->layout == L_HORIZ) {
|
|
can_move = true;
|
|
diff = dir == MOVE_LEFT ? -1 : 1;
|
|
}
|
|
} else {
|
|
if (parent->layout == L_VERT) {
|
|
can_move = true;
|
|
diff = dir == MOVE_UP ? -1 : 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (can_move) {
|
|
int desired = index_child(container) + diff;
|
|
if (desired < 0 || desired >= parent->children->length) {
|
|
can_move = false;
|
|
} else {
|
|
return parent->children->items[desired];
|
|
}
|
|
}
|
|
if (!can_move) {
|
|
container = parent;
|
|
parent = parent->parent;
|
|
if (!parent || container == limit) {
|
|
// Nothing we can do
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
swayc_t *get_swayc_in_direction(swayc_t *container, enum movement_direction dir) {
|
|
return get_swayc_in_direction_under(container, dir, NULL);
|
|
}
|
|
|
|
void recursive_resize(swayc_t *container, double amount, enum wlc_resize_edge edge) {
|
|
int i;
|
|
bool layout_match = true;
|
|
sway_log(L_DEBUG, "Resizing %p with amount: %f", container, amount);
|
|
if (edge == WLC_RESIZE_EDGE_LEFT || edge == WLC_RESIZE_EDGE_RIGHT) {
|
|
container->width += amount;
|
|
layout_match = container->layout == L_HORIZ;
|
|
} else if (edge == WLC_RESIZE_EDGE_TOP || edge == WLC_RESIZE_EDGE_BOTTOM) {
|
|
container->height += amount;
|
|
layout_match = container->layout == L_VERT;
|
|
}
|
|
if (container->type == C_VIEW) {
|
|
struct wlc_geometry geometry = {
|
|
.origin = {
|
|
.x = container->x + container->gaps / 2,
|
|
.y = container->y + container->gaps / 2
|
|
},
|
|
.size = {
|
|
.w = container->width - container->gaps,
|
|
.h = container->height - container->gaps
|
|
}
|
|
};
|
|
wlc_view_set_geometry(container->handle, edge, &geometry);
|
|
return;
|
|
}
|
|
if (layout_match) {
|
|
for (i = 0; i < container->children->length; i++) {
|
|
recursive_resize(container->children->items[i], amount/container->children->length, edge);
|
|
}
|
|
} else {
|
|
for (i = 0; i < container->children->length; i++) {
|
|
recursive_resize(container->children->items[i], amount, edge);
|
|
}
|
|
}
|
|
}
|