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sway/sway/handlers.c

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#include <xkbcommon/xkbcommon.h>
#include <stdlib.h>
#include <stdbool.h>
#include <math.h>
#include <wlc/wlc.h>
#include <ctype.h>
#include "handlers.h"
#include "log.h"
#include "layout.h"
#include "config.h"
#include "commands.h"
#include "stringop.h"
#include "workspace.h"
#include "container.h"
#include "focus.h"
#include "input_state.h"
static struct wlc_origin mouse_origin;
static bool pointer_test(swayc_t *view, void *_origin) {
const struct wlc_origin *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;
}
while (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], &mouse_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], &mouse_origin)) {
lookup = lookup->children->items[i];
break;
}
}
// when border and titles are done, this could happen
if (i == len) {
break;
}
}
return lookup;
}
/* Handles */
static bool handle_output_created(wlc_handle output) {
swayc_t *op = new_output(output);
// Switch to workspace if we need to
if (active_workspace == NULL) {
swayc_t *ws = op->children->items[0];
workspace_switch(ws);
}
return true;
}
static void handle_output_destroyed(wlc_handle output) {
int i;
list_t *list = root_container.children;
for (i = 0; i < list->length; ++i) {
if (((swayc_t *)list->items[i])->handle == output) {
break;
}
}
if (i < list->length) {
destroy_output(list->items[i]);
}
if (list->length == 0) {
active_workspace = NULL;
} else {
// switch to other outputs active workspace
workspace_switch(((swayc_t *)root_container.children->items[0])->focused);
}
}
static void handle_output_resolution_change(wlc_handle output, const struct wlc_size *from, const struct wlc_size *to) {
sway_log(L_DEBUG, "Output %u resolution changed to %d x %d", (unsigned int)output, to->w, to->h);
swayc_t *c = get_swayc_for_handle(output, &root_container);
if (!c) return;
c->width = to->w;
c->height = to->h;
arrange_windows(&root_container, -1, -1);
}
static void handle_output_focused(wlc_handle output, bool focus) {
swayc_t *c = get_swayc_for_handle(output, &root_container);
// if for some reason this output doesnt exist, create it.
if (!c) {
handle_output_created(output);
}
if (focus) {
set_focused_container(c);
}
}
static bool handle_view_created(wlc_handle handle) {
// if view is child of another view, the use that as focused container
wlc_handle parent = wlc_view_get_parent(handle);
swayc_t *focused = NULL;
swayc_t *newview = NULL;
// Get parent container, to add view in
if (parent) {
focused = get_swayc_for_handle(parent, &root_container);
}
if (!focused || focused->type == C_OUTPUT) {
focused = get_focused_container(&root_container);
}
sway_log(L_DEBUG, "handle:%ld type:%x state:%x parent:%ld "
"mask:%d (x:%d y:%d w:%d h:%d) title:%s "
"class:%s appid:%s",
handle, wlc_view_get_type(handle), wlc_view_get_state(handle), parent,
wlc_view_get_mask(handle), wlc_view_get_geometry(handle)->origin.x,
wlc_view_get_geometry(handle)->origin.y,wlc_view_get_geometry(handle)->size.w,
wlc_view_get_geometry(handle)->size.h, wlc_view_get_title(handle),
wlc_view_get_class(handle), wlc_view_get_app_id(handle));
// TODO properly figure out how each window should be handled.
switch (wlc_view_get_type(handle)) {
// regular view created regularly
case 0:
newview = new_view(focused, handle);
wlc_view_set_state(handle, WLC_BIT_MAXIMIZED, true);
break;
// Dmenu keeps viewfocus, but others with this flag dont, for now simulate
// dmenu
case WLC_BIT_OVERRIDE_REDIRECT:
// locked_view_focus = true;
wlc_view_focus(handle);
wlc_view_set_state(handle, WLC_BIT_ACTIVATED, true);
wlc_view_bring_to_front(handle);
break;
// Firefox popups have this flag set.
case WLC_BIT_OVERRIDE_REDIRECT|WLC_BIT_UNMANAGED:
wlc_view_bring_to_front(handle);
locked_container_focus = true;
break;
// Modals, get focus, popups do not
case WLC_BIT_MODAL:
wlc_view_focus(handle);
wlc_view_bring_to_front(handle);
newview = new_floating_view(handle);
case WLC_BIT_POPUP:
wlc_view_bring_to_front(handle);
break;
}
if (newview) {
set_focused_container(newview);
swayc_t *output = swayc_parent_by_type(newview, C_OUTPUT);
arrange_windows(output, -1, -1);
}
return true;
}
static void handle_view_destroyed(wlc_handle handle) {
sway_log(L_DEBUG, "Destroying window %lu", handle);
swayc_t *view = get_swayc_for_handle(handle, &root_container);
switch (wlc_view_get_type(handle)) {
// regular view created regularly
case 0:
case WLC_BIT_MODAL:
case WLC_BIT_POPUP:
if (view) {
swayc_t *parent = destroy_view(view);
arrange_windows(parent, -1, -1);
}
break;
// DMENU has this flag, and takes view_focus, but other things with this
// flag dont
case WLC_BIT_OVERRIDE_REDIRECT:
// locked_view_focus = false;
break;
case WLC_BIT_OVERRIDE_REDIRECT|WLC_BIT_UNMANAGED:
locked_container_focus = false;
break;
}
set_focused_container(get_focused_view(&root_container));
}
static void handle_view_focus(wlc_handle view, bool focus) {
return;
}
static void handle_view_geometry_request(wlc_handle handle, const struct wlc_geometry *geometry) {
sway_log(L_DEBUG, "geometry request %d x %d : %d x %d",
geometry->origin.x, geometry->origin.y, geometry->size.w, geometry->size.h);
// If the view is floating, then apply the geometry.
// Otherwise save the desired width/height for the view.
// This will not do anything for the time being as WLC improperly sends geometry requests
swayc_t *view = get_swayc_for_handle(handle, &root_container);
if (view) {
view->desired_width = geometry->size.w;
view->desired_height = geometry->size.h;
if (view->is_floating) {
view->width = view->desired_width;
view->height = view->desired_height;
view->x = geometry->origin.x;
view->y = geometry->origin.y;
arrange_windows(view->parent, -1, -1);
}
}
}
static void handle_view_state_request(wlc_handle view, enum wlc_view_state_bit state, bool toggle) {
swayc_t *c = get_swayc_for_handle(view, &root_container);
switch (state) {
case WLC_BIT_FULLSCREEN:
// i3 just lets it become fullscreen
wlc_view_set_state(view, state, toggle);
if (c) {
sway_log(L_DEBUG, "setting view %ld %s, fullscreen %d", view, c->name, toggle);
arrange_windows(c->parent, -1, -1);
// Set it as focused window for that workspace if its going fullscreen
if (toggle) {
swayc_t *ws = swayc_parent_by_type(c, C_WORKSPACE);
// Set ws focus to c
set_focused_container_for(ws, c);
}
}
break;
case WLC_BIT_MAXIMIZED:
case WLC_BIT_RESIZING:
case WLC_BIT_MOVING:
break;
case WLC_BIT_ACTIVATED:
sway_log(L_DEBUG, "View %p requested to be activated", c);
break;
}
return;
}
static bool handle_key(wlc_handle view, uint32_t time, const struct wlc_modifiers *modifiers,
uint32_t key, uint32_t sym, enum wlc_key_state state) {
if (locked_view_focus && state == WLC_KEY_STATE_PRESSED) {
return false;
}
// Revert floating container back to original position on keypress
if (state == WLC_KEY_STATE_PRESSED &&
(pointer_state.floating.drag || pointer_state.floating.resize)) {
reset_floating(get_focused_view(&root_container));
}
struct sway_mode *mode = config->current_mode;
if (sym < 70000 /* bullshit made up number */) {
if (!isalnum(sym) && sym != ' ' && sym != XKB_KEY_Escape && sym != XKB_KEY_Tab) {
// God fucking dammit
return false;
}
}
// Lowercase if necessary
sym = tolower(sym);
int i;
if (state == WLC_KEY_STATE_PRESSED) {
press_key(sym);
} else { // WLC_KEY_STATE_RELEASED
release_key(sym);
}
// TODO: reminder to check conflicts with mod+q+a versus mod+q
for (i = 0; i < mode->bindings->length; ++i) {
struct sway_binding *binding = mode->bindings->items[i];
if ((modifiers->mods & binding->modifiers) == binding->modifiers) {
bool match;
int j;
for (j = 0; j < binding->keys->length; ++j) {
xkb_keysym_t *key = binding->keys->items[j];
if ((match = check_key(*key)) == false) {
break;
}
}
if (match) {
if (state == WLC_KEY_STATE_PRESSED) {
handle_command(config, binding->command);
return true;
} else if (state == WLC_KEY_STATE_RELEASED) {
// TODO: --released
}
}
}
}
return false;
}
static bool handle_pointer_motion(wlc_handle handle, uint32_t time, const struct wlc_origin *origin) {
static struct wlc_origin prev_pos;
static wlc_handle prev_handle = 0;
mouse_origin = *origin;
bool changed_floating = false;
bool changed_tiling = false;
int min_sane_w = 100;
int min_sane_h = 60;
if (!active_workspace) {
return false;
}
// Do checks to determine if proper keys are being held
swayc_t *view = container_under_pointer();
uint32_t edge = 0;
if (pointer_state.floating.drag && view) {
if (view->is_floating) {
int dx = mouse_origin.x - prev_pos.x;
int dy = mouse_origin.y - prev_pos.y;
view->x += dx;
view->y += dy;
changed_floating = true;
}
} else if (pointer_state.floating.resize && view) {
if (view->is_floating) {
int dx = mouse_origin.x - prev_pos.x;
int dy = mouse_origin.y - prev_pos.y;
// Move and resize the view based on the dx/dy and mouse position
int midway_x = view->x + view->width/2;
int midway_y = view->y + view->height/2;
if (dx < 0) {
if (!pointer_state.lock.right) {
if (view->width > min_sane_w) {
changed_floating = true;
view->width += dx;
edge += WLC_RESIZE_EDGE_RIGHT;
}
} else if (mouse_origin.x < midway_x && !pointer_state.lock.left) {
changed_floating = true;
view->x += dx;
view->width -= dx;
edge += WLC_RESIZE_EDGE_LEFT;
}
} else if (dx > 0) {
if (mouse_origin.x > midway_x && !pointer_state.lock.right) {
changed_floating = true;
view->width += dx;
edge += WLC_RESIZE_EDGE_RIGHT;
} else if (!pointer_state.lock.left) {
if (view->width > min_sane_w) {
changed_floating = true;
view->x += dx;
view->width -= dx;
edge += WLC_RESIZE_EDGE_LEFT;
}
}
}
if (dy < 0) {
if (!pointer_state.lock.bottom) {
if (view->height > min_sane_h) {
changed_floating = true;
view->height += dy;
edge += WLC_RESIZE_EDGE_BOTTOM;
}
} else if (mouse_origin.y < midway_y && !pointer_state.lock.top) {
changed_floating = true;
view->y += dy;
view->height -= dy;
edge += WLC_RESIZE_EDGE_TOP;
}
} else if (dy > 0) {
if (mouse_origin.y > midway_y && !pointer_state.lock.bottom) {
changed_floating = true;
view->height += dy;
edge += WLC_RESIZE_EDGE_BOTTOM;
} else if (!pointer_state.lock.top) {
if (view->height > min_sane_h) {
changed_floating = true;
view->y += dy;
view->height -= dy;
edge += WLC_RESIZE_EDGE_TOP;
}
}
}
}
} else if (pointer_state.tiling.resize && view) {
if (view != pointer_state.tiling.init_view) {
// Quit out of the resize
pointer_state.tiling.init_view = NULL;
}
if (!view->is_floating && view == pointer_state.tiling.init_view) {
// Handle layout resizes -- Find the biggest parent container then apply resizes to that
// and its bordering siblings
swayc_t *parent = view;
double dx = mouse_origin.x - prev_pos.x;
double dy = mouse_origin.y - prev_pos.y;
if (pointer_state.lock.top) {
while (parent->type != C_WORKSPACE) {
// TODO: Absolute value is a bad hack here to compensate for rounding. Find a better
// way of doing this.
if (fabs(parent->parent->y + parent->parent->height - (view->y + view->height)) <= 1) {
parent = parent->parent;
} else {
break;
}
}
if (parent->parent->children->length > 1 && parent->parent->layout == L_VERT) {
sway_log(L_DEBUG, "Top is locked, found biggest valid parent at: %p", parent);
swayc_t *sibling = get_swayc_in_direction(parent, MOVE_DOWN);
if (sibling) {
sway_log(L_DEBUG, "Found sibling at: %p", sibling);
if ((parent->height > min_sane_h || dy > 0) && (sibling->height > min_sane_h || dy < 0)) {
recursive_resize(parent, dy, WLC_RESIZE_EDGE_BOTTOM);
recursive_resize(sibling, -1 * dy, WLC_RESIZE_EDGE_TOP);
changed_tiling = true;
}
}
}
} else {
while (parent->type != C_WORKSPACE) {
if (fabs(parent->parent->y - view->y) <= 1) {
parent = parent->parent;
} else {
break;
}
}
if (parent->parent->children->length > 1 && parent->parent->layout == L_VERT) {
sway_log(L_DEBUG, "Bot is locked, found biggest valid parent at: %p", parent);
swayc_t *sibling = get_swayc_in_direction(parent, MOVE_UP);
if (sibling) {
sway_log(L_DEBUG, "Found sibling at: %p", sibling);
if ((parent->height > min_sane_h || dy < 0) && (sibling->height > min_sane_h || dy > 0)) {
recursive_resize(parent, -1 * dy, WLC_RESIZE_EDGE_TOP);
recursive_resize(sibling, dy, WLC_RESIZE_EDGE_BOTTOM);
changed_tiling = true;
}
}
}
}
parent = view;
if (pointer_state.lock.left) {
while (parent->type != C_WORKSPACE) {
if (fabs(parent->parent->x + parent->parent->width - (view->x + view->width)) <= 1) {
parent = parent->parent;
} else {
sway_log(L_DEBUG, "view: %f vs parent: %f", view->x + view->width, parent->parent->x + parent->parent->width);
break;
}
}
if (parent->parent->children->length > 1 && parent->parent->layout == L_HORIZ) {
sway_log(L_DEBUG, "Left is locked, found biggest valid parent at: %p", parent);
swayc_t *sibling = get_swayc_in_direction(parent, MOVE_RIGHT);
if (sibling) {
sway_log(L_DEBUG, "Found sibling at: %p", sibling);
if ((parent->width > min_sane_w || dx > 0) && (sibling->width > min_sane_w || dx < 0)) {
recursive_resize(parent, dx, WLC_RESIZE_EDGE_RIGHT);
recursive_resize(sibling, -1 * dx, WLC_RESIZE_EDGE_LEFT);
changed_tiling = true;
}
}
}
} else {
while (parent->type != C_WORKSPACE) {
if (fabs(parent->parent->x - view->x) <= 1 && parent->parent) {
parent = parent->parent;
} else {
break;
}
}
if (parent->parent->children->length > 1 && parent->parent->layout == L_HORIZ) {
sway_log(L_DEBUG, "Right is locked, found biggest valid parent at: %p", parent);
swayc_t *sibling = get_swayc_in_direction(parent, MOVE_LEFT);
if (sibling) {
sway_log(L_DEBUG, "Found sibling at: %p", sibling);
if ((parent->width > min_sane_w || dx < 0) && (sibling->width > min_sane_w || dx > 0)) {
recursive_resize(parent, -1 * dx, WLC_RESIZE_EDGE_LEFT);
recursive_resize(sibling, dx, WLC_RESIZE_EDGE_RIGHT);
changed_tiling = true;
}
}
}
}
arrange_windows(active_workspace, -1, -1);
}
}
if (config->focus_follows_mouse && prev_handle != handle) {
// Dont change focus if fullscreen
swayc_t *focused = get_focused_view(view);
if (!(focused->type == C_VIEW && wlc_view_get_state(focused->handle) & WLC_BIT_FULLSCREEN)
&& !(pointer_state.l_held || pointer_state.r_held)) {
set_focused_container(container_under_pointer());
}
}
prev_handle = handle;
prev_pos = mouse_origin;
if (changed_floating) {
struct wlc_geometry geometry = {
.origin = {
.x = view->x,
.y = view->y
},
.size = {
.w = view->width,
.h = view->height
}
};
wlc_view_set_geometry(view->handle, edge, &geometry);
return true;
}
if (changed_tiling) {
return true;
}
return false;
}
static bool handle_pointer_button(wlc_handle view, uint32_t time, const struct wlc_modifiers *modifiers,
uint32_t button, enum wlc_button_state state, const struct wlc_origin *origin) {
swayc_t *focused = get_focused_container(&root_container);
// dont change focus if fullscreen
if (focused->type == C_VIEW && wlc_view_get_state(focused->handle) & WLC_BIT_FULLSCREEN) {
return false;
}
if (state == WLC_BUTTON_STATE_PRESSED) {
sway_log(L_DEBUG, "Mouse button %u pressed", button);
if (button == M_LEFT_CLICK) {
pointer_state.l_held = true;
}
if (button == M_RIGHT_CLICK) {
pointer_state.r_held = true;
}
swayc_t *pointer = container_under_pointer();
if (pointer) {
set_focused_container(pointer);
int midway_x = pointer->x + pointer->width/2;
int midway_y = pointer->y + pointer->height/2;
pointer_state.lock.bottom = origin->y < midway_y;
pointer_state.lock.top = !pointer_state.lock.bottom;
pointer_state.lock.right = origin->x < midway_x;
pointer_state.lock.left = !pointer_state.lock.right;
}
if (pointer->is_floating) {
int i;
for (i = 0; i < pointer->parent->floating->length; i++) {
if (pointer->parent->floating->items[i] == pointer) {
list_del(pointer->parent->floating, i);
list_add(pointer->parent->floating, pointer);
break;
}
}
arrange_windows(pointer->parent, -1, -1);
if (modifiers->mods & config->floating_mod) {
pointer_state.floating.drag = pointer_state.l_held;
pointer_state.floating.resize = pointer_state.r_held;
start_floating(pointer);
}
// Dont want pointer sent to window while dragging or resizing
return (pointer_state.floating.drag || pointer_state.floating.resize);
} else {
pointer_state.tiling.resize = pointer_state.r_held;
pointer_state.tiling.init_view = pointer;
}
return (pointer && pointer != focused);
} else {
sway_log(L_DEBUG, "Mouse button %u released", button);
if (button == M_LEFT_CLICK) {
pointer_state.l_held = false;
pointer_state.floating.drag = false;
}
if (button == M_RIGHT_CLICK) {
pointer_state.r_held = false;
pointer_state.floating.resize = false;
pointer_state.tiling.resize = false;
pointer_state.tiling.init_view = NULL;
pointer_state.lock = (struct pointer_lock){false ,false ,false ,false};
}
}
return false;
}
static void handle_wlc_ready(void) {
sway_log(L_DEBUG, "Compositor is ready, executing cmds in queue");
int i;
for (i = 0; i < config->cmd_queue->length; ++i) {
handle_command(config, config->cmd_queue->items[i]);
}
free_flat_list(config->cmd_queue);
config->active = true;
}
struct wlc_interface interface = {
.output = {
.created = handle_output_created,
.destroyed = handle_output_destroyed,
.resolution = handle_output_resolution_change,
.focus = handle_output_focused
},
.view = {
.created = handle_view_created,
.destroyed = handle_view_destroyed,
.focus = handle_view_focus,
.request = {
.geometry = handle_view_geometry_request,
.state = handle_view_state_request
}
},
.keyboard = {
.key = handle_key
},
.pointer = {
.motion = handle_pointer_motion,
.button = handle_pointer_button
},
.compositor = {
.ready = handle_wlc_ready
}
};
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