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556 lines
18 KiB
556 lines
18 KiB
#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wayland-server-core.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_layer_shell_v1.h>
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#include <wlr/types/wlr_output_damage.h>
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#include <wlr/types/wlr_output.h>
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#include "log.h"
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#include "sway/desktop/transaction.h"
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#include "sway/input/cursor.h"
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#include "sway/input/input-manager.h"
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#include "sway/input/seat.h"
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#include "sway/layers.h"
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#include "sway/output.h"
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#include "sway/server.h"
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#include "sway/tree/arrange.h"
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#include "sway/tree/workspace.h"
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static void apply_exclusive(struct wlr_box *usable_area,
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uint32_t anchor, int32_t exclusive,
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int32_t margin_top, int32_t margin_right,
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int32_t margin_bottom, int32_t margin_left) {
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if (exclusive <= 0) {
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return;
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}
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struct {
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uint32_t anchors;
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int *positive_axis;
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int *negative_axis;
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int margin;
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} edges[] = {
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{
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.anchors =
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ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP,
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.positive_axis = &usable_area->y,
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.negative_axis = &usable_area->height,
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.margin = margin_top,
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},
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{
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.anchors =
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ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
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.positive_axis = NULL,
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.negative_axis = &usable_area->height,
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.margin = margin_bottom,
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},
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{
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.anchors =
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ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
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.positive_axis = &usable_area->x,
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.negative_axis = &usable_area->width,
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.margin = margin_left,
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},
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{
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.anchors =
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ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
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.positive_axis = NULL,
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.negative_axis = &usable_area->width,
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.margin = margin_right,
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},
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};
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for (size_t i = 0; i < sizeof(edges) / sizeof(edges[0]); ++i) {
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if ((anchor & edges[i].anchors) == edges[i].anchors && exclusive + edges[i].margin > 0) {
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if (edges[i].positive_axis) {
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*edges[i].positive_axis += exclusive + edges[i].margin;
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}
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if (edges[i].negative_axis) {
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*edges[i].negative_axis -= exclusive + edges[i].margin;
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}
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}
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}
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}
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static void arrange_layer(struct sway_output *output, struct wl_list *list,
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struct wlr_box *usable_area, bool exclusive) {
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struct sway_layer_surface *sway_layer;
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struct wlr_box full_area = { 0 };
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wlr_output_effective_resolution(output->wlr_output,
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&full_area.width, &full_area.height);
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wl_list_for_each(sway_layer, list, link) {
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struct wlr_layer_surface_v1 *layer = sway_layer->layer_surface;
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struct wlr_layer_surface_v1_state *state = &layer->current;
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if (exclusive != (state->exclusive_zone > 0)) {
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continue;
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}
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struct wlr_box bounds;
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if (state->exclusive_zone == -1) {
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bounds = full_area;
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} else {
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bounds = *usable_area;
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}
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struct wlr_box box = {
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.width = state->desired_width,
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.height = state->desired_height
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};
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// Horizontal axis
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const uint32_t both_horiz = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT
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| ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
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if ((state->anchor & both_horiz) && box.width == 0) {
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box.x = bounds.x;
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box.width = bounds.width;
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} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
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box.x = bounds.x;
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} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
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box.x = bounds.x + (bounds.width - box.width);
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} else {
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box.x = bounds.x + ((bounds.width / 2) - (box.width / 2));
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}
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// Vertical axis
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const uint32_t both_vert = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP
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| ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
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if ((state->anchor & both_vert) && box.height == 0) {
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box.y = bounds.y;
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box.height = bounds.height;
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} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
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box.y = bounds.y;
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} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
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box.y = bounds.y + (bounds.height - box.height);
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} else {
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box.y = bounds.y + ((bounds.height / 2) - (box.height / 2));
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}
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// Margin
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if ((state->anchor & both_horiz) == both_horiz) {
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box.x += state->margin.left;
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box.width -= state->margin.left + state->margin.right;
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} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
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box.x += state->margin.left;
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} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
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box.x -= state->margin.right;
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}
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if ((state->anchor & both_vert) == both_vert) {
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box.y += state->margin.top;
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box.height -= state->margin.top + state->margin.bottom;
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} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
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box.y += state->margin.top;
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} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
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box.y -= state->margin.bottom;
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}
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if (box.width < 0 || box.height < 0) {
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// TODO: Bubble up a protocol error?
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wlr_layer_surface_v1_close(layer);
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continue;
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}
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// Apply
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sway_layer->geo = box;
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apply_exclusive(usable_area, state->anchor, state->exclusive_zone,
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state->margin.top, state->margin.right,
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state->margin.bottom, state->margin.left);
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wlr_layer_surface_v1_configure(layer, box.width, box.height);
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}
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}
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void arrange_layers(struct sway_output *output) {
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struct wlr_box usable_area = { 0 };
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wlr_output_effective_resolution(output->wlr_output,
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&usable_area.width, &usable_area.height);
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// Arrange exclusive surfaces from top->bottom
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arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
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&usable_area, true);
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arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
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&usable_area, true);
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arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
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&usable_area, true);
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arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
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&usable_area, true);
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if (memcmp(&usable_area, &output->usable_area,
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sizeof(struct wlr_box)) != 0) {
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sway_log(SWAY_DEBUG, "Usable area changed, rearranging output");
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memcpy(&output->usable_area, &usable_area, sizeof(struct wlr_box));
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arrange_output(output);
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}
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// Arrange non-exlusive surfaces from top->bottom
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arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
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&usable_area, false);
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arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
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&usable_area, false);
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arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
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&usable_area, false);
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arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
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&usable_area, false);
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// Find topmost keyboard interactive layer, if such a layer exists
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uint32_t layers_above_shell[] = {
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ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY,
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ZWLR_LAYER_SHELL_V1_LAYER_TOP,
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};
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size_t nlayers = sizeof(layers_above_shell) / sizeof(layers_above_shell[0]);
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struct sway_layer_surface *layer, *topmost = NULL;
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for (size_t i = 0; i < nlayers; ++i) {
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wl_list_for_each_reverse(layer,
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&output->layers[layers_above_shell[i]], link) {
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if (layer->layer_surface->current.keyboard_interactive &&
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layer->layer_surface->mapped) {
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topmost = layer;
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break;
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}
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}
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if (topmost != NULL) {
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break;
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}
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}
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struct sway_seat *seat;
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wl_list_for_each(seat, &server.input->seats, link) {
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if (topmost != NULL) {
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seat_set_focus_layer(seat, topmost->layer_surface);
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}
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}
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}
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static struct sway_layer_surface *find_any_layer_by_client(
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struct wl_client *client, struct wlr_output *ignore_output) {
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for (int i = 0; i < root->outputs->length; ++i) {
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struct sway_output *output = root->outputs->items[i];
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if (output->wlr_output == ignore_output) {
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continue;
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}
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// For now we'll only check the overlay layer
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struct sway_layer_surface *lsurface;
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wl_list_for_each(lsurface,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY], link) {
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struct wl_resource *resource = lsurface->layer_surface->resource;
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if (wl_resource_get_client(resource) == client) {
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return lsurface;
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}
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}
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}
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return NULL;
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}
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static void handle_output_destroy(struct wl_listener *listener, void *data) {
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struct sway_layer_surface *sway_layer =
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wl_container_of(listener, sway_layer, output_destroy);
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// Determine if this layer is being used by an exclusive client. If it is,
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// try and find another layer owned by this client to pass focus to.
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struct sway_seat *seat = input_manager_get_default_seat();
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struct wl_client *client =
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wl_resource_get_client(sway_layer->layer_surface->resource);
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bool set_focus = seat->exclusive_client == client;
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wl_list_remove(&sway_layer->output_destroy.link);
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wl_list_remove(&sway_layer->link);
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wl_list_init(&sway_layer->link);
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if (set_focus) {
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struct sway_layer_surface *layer =
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find_any_layer_by_client(client, sway_layer->layer_surface->output);
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if (layer) {
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seat_set_focus_layer(seat, layer->layer_surface);
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}
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}
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sway_layer->layer_surface->output = NULL;
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wlr_layer_surface_v1_close(sway_layer->layer_surface);
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}
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static void handle_surface_commit(struct wl_listener *listener, void *data) {
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struct sway_layer_surface *layer =
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wl_container_of(listener, layer, surface_commit);
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struct wlr_layer_surface_v1 *layer_surface = layer->layer_surface;
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struct wlr_output *wlr_output = layer_surface->output;
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if (wlr_output == NULL) {
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return;
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}
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struct sway_output *output = wlr_output->data;
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struct wlr_box old_geo = layer->geo;
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arrange_layers(output);
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if (memcmp(&old_geo, &layer->geo, sizeof(struct wlr_box)) != 0) {
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output_damage_surface(output, old_geo.x, old_geo.y,
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layer_surface->surface, true);
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output_damage_surface(output, layer->geo.x, layer->geo.y,
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layer_surface->surface, true);
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} else {
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output_damage_surface(output, layer->geo.x, layer->geo.y,
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layer_surface->surface, false);
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}
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transaction_commit_dirty();
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}
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static void unmap(struct sway_layer_surface *sway_layer) {
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struct wlr_output *wlr_output = sway_layer->layer_surface->output;
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if (wlr_output == NULL) {
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return;
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}
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struct sway_output *output = wlr_output->data;
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if (output == NULL) {
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return;
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}
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output_damage_surface(output, sway_layer->geo.x, sway_layer->geo.y,
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sway_layer->layer_surface->surface, true);
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struct sway_seat *seat;
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wl_list_for_each(seat, &server.input->seats, link) {
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if (seat->focused_layer == sway_layer->layer_surface) {
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seat_set_focus_layer(seat, NULL);
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}
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}
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cursor_rebase_all();
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}
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static void handle_destroy(struct wl_listener *listener, void *data) {
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struct sway_layer_surface *sway_layer =
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wl_container_of(listener, sway_layer, destroy);
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sway_log(SWAY_DEBUG, "Layer surface destroyed (%s)",
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sway_layer->layer_surface->namespace);
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if (sway_layer->layer_surface->mapped) {
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unmap(sway_layer);
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}
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wl_list_remove(&sway_layer->link);
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wl_list_remove(&sway_layer->destroy.link);
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wl_list_remove(&sway_layer->map.link);
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wl_list_remove(&sway_layer->unmap.link);
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wl_list_remove(&sway_layer->surface_commit.link);
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wl_list_remove(&sway_layer->new_popup.link);
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if (sway_layer->layer_surface->output != NULL) {
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struct sway_output *output = sway_layer->layer_surface->output->data;
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if (output != NULL) {
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arrange_layers(output);
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transaction_commit_dirty();
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}
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wl_list_remove(&sway_layer->output_destroy.link);
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sway_layer->layer_surface->output = NULL;
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}
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free(sway_layer);
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}
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static void handle_map(struct wl_listener *listener, void *data) {
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struct sway_layer_surface *sway_layer = wl_container_of(listener,
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sway_layer, map);
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struct sway_output *output = sway_layer->layer_surface->output->data;
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output_damage_surface(output, sway_layer->geo.x, sway_layer->geo.y,
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sway_layer->layer_surface->surface, true);
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wlr_surface_send_enter(sway_layer->layer_surface->surface,
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sway_layer->layer_surface->output);
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cursor_rebase_all();
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}
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static void handle_unmap(struct wl_listener *listener, void *data) {
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struct sway_layer_surface *sway_layer = wl_container_of(
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listener, sway_layer, unmap);
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unmap(sway_layer);
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}
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static struct sway_layer_surface *popup_get_layer(
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struct sway_layer_popup *popup) {
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while (popup->parent_type == LAYER_PARENT_POPUP) {
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popup = popup->parent_popup;
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}
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return popup->parent_layer;
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}
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static void popup_damage(struct sway_layer_popup *layer_popup, bool whole) {
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struct wlr_xdg_popup *popup = layer_popup->wlr_popup;
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struct wlr_surface *surface = popup->base->surface;
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int popup_sx = popup->geometry.x - popup->base->geometry.x;
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int popup_sy = popup->geometry.y - popup->base->geometry.y;
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int ox = popup_sx, oy = popup_sy;
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struct sway_layer_surface *layer;
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while (true) {
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if (layer_popup->parent_type == LAYER_PARENT_POPUP) {
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layer_popup = layer_popup->parent_popup;
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ox += layer_popup->wlr_popup->geometry.x;
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oy += layer_popup->wlr_popup->geometry.y;
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} else {
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layer = layer_popup->parent_layer;
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ox += layer->geo.x;
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oy += layer->geo.y;
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break;
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}
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}
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struct wlr_output *wlr_output = layer->layer_surface->output;
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struct sway_output *output = wlr_output->data;
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output_damage_surface(output, ox, oy, surface, whole);
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}
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static void popup_handle_map(struct wl_listener *listener, void *data) {
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struct sway_layer_popup *popup = wl_container_of(listener, popup, map);
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struct sway_layer_surface *layer = popup_get_layer(popup);
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struct wlr_output *wlr_output = layer->layer_surface->output;
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wlr_surface_send_enter(popup->wlr_popup->base->surface, wlr_output);
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popup_damage(popup, true);
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}
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static void popup_handle_unmap(struct wl_listener *listener, void *data) {
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struct sway_layer_popup *popup = wl_container_of(listener, popup, unmap);
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popup_damage(popup, true);
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}
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static void popup_handle_commit(struct wl_listener *listener, void *data) {
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struct sway_layer_popup *popup = wl_container_of(listener, popup, commit);
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popup_damage(popup, false);
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}
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static void popup_handle_destroy(struct wl_listener *listener, void *data) {
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struct sway_layer_popup *popup =
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wl_container_of(listener, popup, destroy);
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wl_list_remove(&popup->map.link);
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wl_list_remove(&popup->unmap.link);
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wl_list_remove(&popup->destroy.link);
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wl_list_remove(&popup->commit.link);
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free(popup);
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}
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static void popup_unconstrain(struct sway_layer_popup *popup) {
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struct sway_layer_surface *layer = popup_get_layer(popup);
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struct wlr_xdg_popup *wlr_popup = popup->wlr_popup;
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struct sway_output *output = layer->layer_surface->output->data;
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// the output box expressed in the coordinate system of the toplevel parent
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// of the popup
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struct wlr_box output_toplevel_sx_box = {
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.x = -layer->geo.x,
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.y = -layer->geo.y,
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.width = output->width,
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.height = output->height,
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};
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wlr_xdg_popup_unconstrain_from_box(wlr_popup, &output_toplevel_sx_box);
|
|
}
|
|
|
|
static void popup_handle_new_popup(struct wl_listener *listener, void *data);
|
|
|
|
static struct sway_layer_popup *create_popup(struct wlr_xdg_popup *wlr_popup,
|
|
enum layer_parent parent_type, void *parent) {
|
|
struct sway_layer_popup *popup =
|
|
calloc(1, sizeof(struct sway_layer_popup));
|
|
if (popup == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
popup->wlr_popup = wlr_popup;
|
|
popup->parent_type = parent_type;
|
|
popup->parent_layer = parent;
|
|
|
|
popup->map.notify = popup_handle_map;
|
|
wl_signal_add(&wlr_popup->base->events.map, &popup->map);
|
|
popup->unmap.notify = popup_handle_unmap;
|
|
wl_signal_add(&wlr_popup->base->events.unmap, &popup->unmap);
|
|
popup->destroy.notify = popup_handle_destroy;
|
|
wl_signal_add(&wlr_popup->base->events.destroy, &popup->destroy);
|
|
popup->commit.notify = popup_handle_commit;
|
|
wl_signal_add(&wlr_popup->base->surface->events.commit, &popup->commit);
|
|
popup->new_popup.notify = popup_handle_new_popup;
|
|
wl_signal_add(&wlr_popup->base->events.new_popup, &popup->new_popup);
|
|
|
|
popup_unconstrain(popup);
|
|
|
|
return popup;
|
|
}
|
|
|
|
static void popup_handle_new_popup(struct wl_listener *listener, void *data) {
|
|
struct sway_layer_popup *sway_layer_popup =
|
|
wl_container_of(listener, sway_layer_popup, new_popup);
|
|
struct wlr_xdg_popup *wlr_popup = data;
|
|
create_popup(wlr_popup, LAYER_PARENT_POPUP, sway_layer_popup);
|
|
}
|
|
|
|
static void handle_new_popup(struct wl_listener *listener, void *data) {
|
|
struct sway_layer_surface *sway_layer_surface =
|
|
wl_container_of(listener, sway_layer_surface, new_popup);
|
|
struct wlr_xdg_popup *wlr_popup = data;
|
|
create_popup(wlr_popup, LAYER_PARENT_LAYER, sway_layer_surface);
|
|
}
|
|
|
|
struct sway_layer_surface *layer_from_wlr_layer_surface_v1(
|
|
struct wlr_layer_surface_v1 *layer_surface) {
|
|
return layer_surface->data;
|
|
}
|
|
|
|
void handle_layer_shell_surface(struct wl_listener *listener, void *data) {
|
|
struct wlr_layer_surface_v1 *layer_surface = data;
|
|
sway_log(SWAY_DEBUG, "new layer surface: namespace %s layer %d anchor %d "
|
|
"size %dx%d margin %d,%d,%d,%d",
|
|
layer_surface->namespace, layer_surface->layer, layer_surface->layer,
|
|
layer_surface->client_pending.desired_width,
|
|
layer_surface->client_pending.desired_height,
|
|
layer_surface->client_pending.margin.top,
|
|
layer_surface->client_pending.margin.right,
|
|
layer_surface->client_pending.margin.bottom,
|
|
layer_surface->client_pending.margin.left);
|
|
|
|
if (!layer_surface->output) {
|
|
// Assign last active output
|
|
struct sway_output *output = NULL;
|
|
struct sway_seat *seat = input_manager_get_default_seat();
|
|
if (seat) {
|
|
struct sway_workspace *ws = seat_get_focused_workspace(seat);
|
|
if (ws != NULL) {
|
|
output = ws->output;
|
|
}
|
|
}
|
|
if (!output || output == root->noop_output) {
|
|
if (!root->outputs->length) {
|
|
sway_log(SWAY_ERROR,
|
|
"no output to auto-assign layer surface '%s' to",
|
|
layer_surface->namespace);
|
|
wlr_layer_surface_v1_close(layer_surface);
|
|
return;
|
|
}
|
|
output = root->outputs->items[0];
|
|
}
|
|
layer_surface->output = output->wlr_output;
|
|
}
|
|
|
|
struct sway_layer_surface *sway_layer =
|
|
calloc(1, sizeof(struct sway_layer_surface));
|
|
if (!sway_layer) {
|
|
return;
|
|
}
|
|
|
|
sway_layer->surface_commit.notify = handle_surface_commit;
|
|
wl_signal_add(&layer_surface->surface->events.commit,
|
|
&sway_layer->surface_commit);
|
|
|
|
sway_layer->destroy.notify = handle_destroy;
|
|
wl_signal_add(&layer_surface->events.destroy, &sway_layer->destroy);
|
|
sway_layer->map.notify = handle_map;
|
|
wl_signal_add(&layer_surface->events.map, &sway_layer->map);
|
|
sway_layer->unmap.notify = handle_unmap;
|
|
wl_signal_add(&layer_surface->events.unmap, &sway_layer->unmap);
|
|
sway_layer->new_popup.notify = handle_new_popup;
|
|
wl_signal_add(&layer_surface->events.new_popup, &sway_layer->new_popup);
|
|
|
|
sway_layer->layer_surface = layer_surface;
|
|
layer_surface->data = sway_layer;
|
|
|
|
struct sway_output *output = layer_surface->output->data;
|
|
sway_layer->output_destroy.notify = handle_output_destroy;
|
|
wl_signal_add(&output->events.destroy, &sway_layer->output_destroy);
|
|
|
|
wl_list_insert(&output->layers[layer_surface->layer], &sway_layer->link);
|
|
|
|
// Temporarily set the layer's current state to client_pending
|
|
// So that we can easily arrange it
|
|
struct wlr_layer_surface_v1_state old_state = layer_surface->current;
|
|
layer_surface->current = layer_surface->client_pending;
|
|
arrange_layers(output);
|
|
layer_surface->current = old_state;
|
|
}
|