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654da8c8a9
When switching between workspaces, we need to migrate omnipresent views to the new workspace so that they are kept visible. However, by using for_each_view_reverse() macro, we were not migrating omnipresent views that view_is_focusable() return false (e.g. Conky). Use wl_list_for_each_reverse() macro instead to catch all the omnipresent views.
665 lines
19 KiB
C
665 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#define _POSIX_C_SOURCE 200809L
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#include "workspaces.h"
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#include <assert.h>
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#include <cairo.h>
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#include <pango/pangocairo.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_scene.h>
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#include "buffer.h"
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#include "common/font.h"
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#include "common/graphic-helpers.h"
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#include "common/list.h"
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#include "common/mem.h"
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#include "config/rcxml.h"
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#include "input/keyboard.h"
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#include "labwc.h"
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#include "output.h"
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#include "protocols/cosmic-workspaces.h"
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#include "protocols/ext-workspace.h"
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#include "theme.h"
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#include "view.h"
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#define COSMIC_WORKSPACES_VERSION 1
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#define EXT_WORKSPACES_VERSION 1
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/* Internal helpers */
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static size_t
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parse_workspace_index(const char *name)
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{
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/*
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* We only want to get positive numbers which span the whole string.
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*
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* More detailed requirement:
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* .---------------.--------------.
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* | Input | Return value |
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* |---------------+--------------|
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* | "2nd desktop" | 0 |
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* | "-50" | 0 |
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* | "0" | 0 |
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* | "124" | 124 |
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* | "1.24" | 0 |
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* `------------------------------´
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*
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* As atoi() happily parses any numbers until it hits a non-number we
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* can't really use it for this case. Instead, we use strtol() combined
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* with further checks for the endptr (remaining non-number characters)
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* and returned negative numbers.
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*/
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long index;
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char *endptr;
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errno = 0;
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index = strtol(name, &endptr, 10);
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if (errno || *endptr != '\0' || index < 0) {
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return 0;
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}
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return index;
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}
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static void
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_osd_update(struct server *server)
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{
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struct theme *theme = server->theme;
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/* Settings */
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uint16_t margin = 10;
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uint16_t padding = 2;
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uint16_t rect_height = theme->osd_workspace_switcher_boxes_height;
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uint16_t rect_width = theme->osd_workspace_switcher_boxes_width;
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bool hide_boxes = theme->osd_workspace_switcher_boxes_width == 0 ||
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theme->osd_workspace_switcher_boxes_height == 0;
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/* Dimensions */
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size_t workspace_count = wl_list_length(&server->workspaces.all);
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uint16_t marker_width = workspace_count * (rect_width + padding) - padding;
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uint16_t width = margin * 2 + (marker_width < 200 ? 200 : marker_width);
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uint16_t height = margin * (hide_boxes ? 2 : 3) + rect_height + font_height(&rc.font_osd);
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cairo_t *cairo;
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cairo_surface_t *surface;
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struct workspace *workspace;
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struct output *output;
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wl_list_for_each(output, &server->outputs, link) {
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if (!output_is_usable(output)) {
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continue;
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}
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struct lab_data_buffer *buffer = buffer_create_cairo(width, height,
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output->wlr_output->scale);
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if (!buffer) {
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wlr_log(WLR_ERROR, "Failed to allocate buffer for workspace OSD");
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continue;
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}
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cairo = cairo_create(buffer->surface);
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/* Background */
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set_cairo_color(cairo, theme->osd_bg_color);
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cairo_rectangle(cairo, 0, 0, width, height);
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cairo_fill(cairo);
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/* Border */
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set_cairo_color(cairo, theme->osd_border_color);
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struct wlr_fbox border_fbox = {
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.width = width,
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.height = height,
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};
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draw_cairo_border(cairo, border_fbox, theme->osd_border_width);
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/* Boxes */
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uint16_t x;
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if (!hide_boxes) {
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x = (width - marker_width) / 2;
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wl_list_for_each(workspace, &server->workspaces.all, link) {
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bool active = workspace == server->workspaces.current;
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set_cairo_color(cairo, server->theme->osd_label_text_color);
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struct wlr_fbox fbox = {
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.x = x,
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.y = margin,
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.width = rect_width,
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.height = rect_height,
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};
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draw_cairo_border(cairo, fbox,
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theme->osd_workspace_switcher_boxes_border_width);
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if (active) {
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cairo_rectangle(cairo, x, margin,
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rect_width, rect_height);
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cairo_fill(cairo);
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}
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x += rect_width + padding;
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}
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}
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/* Text */
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set_cairo_color(cairo, server->theme->osd_label_text_color);
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PangoLayout *layout = pango_cairo_create_layout(cairo);
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pango_context_set_round_glyph_positions(pango_layout_get_context(layout), false);
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pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
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/* Center workspace indicator on the x axis */
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int req_width = font_width(&rc.font_osd, server->workspaces.current->name);
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req_width = MIN(req_width, width - 2 * margin);
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x = (width - req_width) / 2;
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if (!hide_boxes) {
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cairo_move_to(cairo, x, margin * 2 + rect_height);
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} else {
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cairo_move_to(cairo, x, (height - font_height(&rc.font_osd)) / 2.0);
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}
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PangoFontDescription *desc = font_to_pango_desc(&rc.font_osd);
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//pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
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pango_layout_set_font_description(layout, desc);
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pango_layout_set_width(layout, req_width * PANGO_SCALE);
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pango_font_description_free(desc);
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pango_layout_set_text(layout, server->workspaces.current->name, -1);
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pango_cairo_show_layout(cairo, layout);
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g_object_unref(layout);
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surface = cairo_get_target(cairo);
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cairo_surface_flush(surface);
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cairo_destroy(cairo);
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if (!output->workspace_osd) {
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output->workspace_osd = wlr_scene_buffer_create(
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&server->scene->tree, NULL);
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}
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/* Position the whole thing */
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struct wlr_box output_box;
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wlr_output_layout_get_box(output->server->output_layout,
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output->wlr_output, &output_box);
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int lx = output_box.x + (output_box.width - width) / 2;
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int ly = output_box.y + (output_box.height - height) / 2;
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wlr_scene_node_set_position(&output->workspace_osd->node, lx, ly);
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wlr_scene_buffer_set_buffer(output->workspace_osd, &buffer->base);
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wlr_scene_buffer_set_dest_size(output->workspace_osd,
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buffer->logical_width, buffer->logical_height);
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/* And finally drop the buffer so it will get destroyed on OSD hide */
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wlr_buffer_drop(&buffer->base);
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}
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}
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static struct workspace *
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workspace_find_by_name(struct server *server, const char *name)
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{
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struct workspace *workspace;
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/* by index */
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size_t parsed_index = parse_workspace_index(name);
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if (parsed_index) {
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size_t index = 0;
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wl_list_for_each(workspace, &server->workspaces.all, link) {
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if (parsed_index == ++index) {
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return workspace;
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}
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}
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}
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/* by name */
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wl_list_for_each(workspace, &server->workspaces.all, link) {
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if (!strcmp(workspace->name, name)) {
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return workspace;
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}
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}
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wlr_log(WLR_ERROR, "Workspace '%s' not found", name);
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return NULL;
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}
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/* cosmic workspace handlers */
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static void
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handle_cosmic_workspace_activate(struct wl_listener *listener, void *data)
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{
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struct workspace *workspace = wl_container_of(listener, workspace, on_cosmic.activate);
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workspaces_switch_to(workspace, /* update_focus */ true);
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wlr_log(WLR_INFO, "cosmic activating workspace %s", workspace->name);
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}
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/* ext workspace handlers */
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static void
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handle_ext_workspace_activate(struct wl_listener *listener, void *data)
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{
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struct workspace *workspace = wl_container_of(listener, workspace, on_ext.activate);
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workspaces_switch_to(workspace, /* update_focus */ true);
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wlr_log(WLR_INFO, "ext activating workspace %s", workspace->name);
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}
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/* Internal API */
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static void
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add_workspace(struct server *server, const char *name)
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{
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struct workspace *workspace = znew(*workspace);
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workspace->server = server;
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workspace->name = xstrdup(name);
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workspace->tree = wlr_scene_tree_create(server->workspace_tree);
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workspace->view_trees[VIEW_LAYER_ALWAYS_ON_BOTTOM] =
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wlr_scene_tree_create(workspace->tree);
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workspace->view_trees[VIEW_LAYER_NORMAL] =
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wlr_scene_tree_create(workspace->tree);
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workspace->view_trees[VIEW_LAYER_ALWAYS_ON_TOP] =
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wlr_scene_tree_create(workspace->tree);
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wl_list_append(&server->workspaces.all, &workspace->link);
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wlr_scene_node_set_enabled(&workspace->tree->node, false);
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/* cosmic */
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workspace->cosmic_workspace = lab_cosmic_workspace_create(server->workspaces.cosmic_group);
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lab_cosmic_workspace_set_name(workspace->cosmic_workspace, name);
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workspace->on_cosmic.activate.notify = handle_cosmic_workspace_activate;
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wl_signal_add(&workspace->cosmic_workspace->events.activate,
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&workspace->on_cosmic.activate);
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/* ext */
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workspace->ext_workspace = lab_ext_workspace_create(
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server->workspaces.ext_manager, /*id*/ NULL);
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lab_ext_workspace_assign_to_group(workspace->ext_workspace, server->workspaces.ext_group);
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lab_ext_workspace_set_name(workspace->ext_workspace, name);
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workspace->on_ext.activate.notify = handle_ext_workspace_activate;
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wl_signal_add(&workspace->ext_workspace->events.activate,
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&workspace->on_ext.activate);
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}
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static struct workspace *
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get_prev(struct workspace *current, struct wl_list *workspaces, bool wrap)
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{
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struct wl_list *target_link = current->link.prev;
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if (target_link == workspaces) {
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/* Current workspace is the first one */
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if (!wrap) {
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return NULL;
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}
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/* Roll over */
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target_link = target_link->prev;
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}
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return wl_container_of(target_link, current, link);
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}
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static struct workspace *
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get_next(struct workspace *current, struct wl_list *workspaces, bool wrap)
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{
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struct wl_list *target_link = current->link.next;
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if (target_link == workspaces) {
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/* Current workspace is the last one */
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if (!wrap) {
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return NULL;
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}
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/* Roll over */
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target_link = target_link->next;
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}
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return wl_container_of(target_link, current, link);
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}
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static bool
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workspace_has_views(struct workspace *workspace, struct server *server)
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{
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struct view *view;
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for_each_view(view, &server->views, LAB_VIEW_CRITERIA_NO_OMNIPRESENT) {
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if (view->workspace == workspace) {
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return true;
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}
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}
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return false;
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}
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static struct workspace *
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get_adjacent_occupied(struct workspace *current, struct wl_list *workspaces,
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bool wrap, bool reverse)
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{
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struct server *server = current->server;
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struct wl_list *start = ¤t->link;
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struct wl_list *link = reverse ? start->prev : start->next;
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bool has_wrapped = false;
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while (true) {
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/* Handle list boundaries */
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if (link == workspaces) {
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if (!wrap) {
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break; /* No wrapping allowed - stop searching */
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}
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if (has_wrapped) {
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break; /* Already wrapped once - stop to prevent infinite loop */
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}
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/* Wrap around */
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link = reverse ? workspaces->prev : workspaces->next;
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has_wrapped = true;
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continue;
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}
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/* Get the workspace */
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struct workspace *target = wl_container_of(link, target, link);
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/* Check if we've come full circle */
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if (link == start) {
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break;
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}
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/* Check if it's occupied (and not current) */
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if (target != current && workspace_has_views(target, server)) {
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return target;
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}
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/* Move to next/prev */
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link = reverse ? link->prev : link->next;
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}
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return NULL; /* No occupied workspace found */
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}
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static struct workspace *
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get_prev_occupied(struct workspace *current, struct wl_list *workspaces, bool wrap)
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{
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return get_adjacent_occupied(current, workspaces, wrap, true);
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}
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static struct workspace *
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get_next_occupied(struct workspace *current, struct wl_list *workspaces, bool wrap)
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{
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return get_adjacent_occupied(current, workspaces, wrap, false);
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}
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static int
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_osd_handle_timeout(void *data)
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{
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struct seat *seat = data;
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workspaces_osd_hide(seat);
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/* Don't re-check */
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return 0;
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}
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static void
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_osd_show(struct server *server)
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{
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if (!rc.workspace_config.popuptime) {
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return;
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}
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_osd_update(server);
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struct output *output;
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wl_list_for_each(output, &server->outputs, link) {
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if (output_is_usable(output) && output->workspace_osd) {
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wlr_scene_node_set_enabled(&output->workspace_osd->node, true);
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}
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}
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if (keyboard_get_all_modifiers(&server->seat)) {
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/* Hidden by release of all modifiers */
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server->seat.workspace_osd_shown_by_modifier = true;
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} else {
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/* Hidden by timer */
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if (!server->seat.workspace_osd_timer) {
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server->seat.workspace_osd_timer = wl_event_loop_add_timer(
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server->wl_event_loop, _osd_handle_timeout, &server->seat);
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}
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wl_event_source_timer_update(server->seat.workspace_osd_timer,
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rc.workspace_config.popuptime);
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}
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}
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/* Public API */
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void
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workspaces_init(struct server *server)
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{
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server->workspaces.cosmic_manager = lab_cosmic_workspace_manager_create(
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server->wl_display, /* capabilities */ CW_CAP_WS_ACTIVATE,
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COSMIC_WORKSPACES_VERSION);
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server->workspaces.ext_manager = lab_ext_workspace_manager_create(
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server->wl_display, /* capabilities */ WS_CAP_WS_ACTIVATE,
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EXT_WORKSPACES_VERSION);
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server->workspaces.cosmic_group = lab_cosmic_workspace_group_create(
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server->workspaces.cosmic_manager);
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server->workspaces.ext_group = lab_ext_workspace_group_create(
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server->workspaces.ext_manager);
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wl_list_init(&server->workspaces.all);
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struct workspace_config *conf;
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wl_list_for_each(conf, &rc.workspace_config.workspaces, link) {
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add_workspace(server, conf->name);
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}
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/*
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* After adding workspaces, check if there is an initial workspace
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* selected and set that as the initial workspace.
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*/
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char *initial_name = rc.workspace_config.initial_workspace_name;
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struct workspace *initial = NULL;
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struct workspace *first = wl_container_of(
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server->workspaces.all.next, first, link);
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if (initial_name) {
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initial = workspace_find_by_name(server, initial_name);
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}
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if (!initial) {
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initial = first;
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}
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server->workspaces.current = initial;
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wlr_scene_node_set_enabled(&initial->tree->node, true);
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lab_cosmic_workspace_set_active(initial->cosmic_workspace, true);
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lab_ext_workspace_set_active(initial->ext_workspace, true);
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}
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/*
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* update_focus should normally be set to true. It is set to false only
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* when this function is called from desktop_focus_view(), in order to
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* avoid unnecessary extra focus changes and possible recursion.
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*/
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void
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workspaces_switch_to(struct workspace *target, bool update_focus)
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{
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assert(target);
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struct server *server = target->server;
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if (target == server->workspaces.current) {
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return;
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}
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/* Disable the old workspace */
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wlr_scene_node_set_enabled(
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&server->workspaces.current->tree->node, false);
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lab_cosmic_workspace_set_active(
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server->workspaces.current->cosmic_workspace, false);
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lab_ext_workspace_set_active(
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server->workspaces.current->ext_workspace, false);
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/*
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* Move Omnipresent views to new workspace.
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* Not using for_each_view() since it skips views that
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* view_is_focusable() returns false (e.g. Conky).
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*/
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struct view *view;
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wl_list_for_each_reverse(view, &server->views, link) {
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if (view->visible_on_all_workspaces) {
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view_move_to_workspace(view, target);
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}
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}
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/* Enable the new workspace */
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wlr_scene_node_set_enabled(&target->tree->node, true);
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/* Save the last visited workspace */
|
||
server->workspaces.last = server->workspaces.current;
|
||
|
||
/* Make sure new views will spawn on the new workspace */
|
||
server->workspaces.current = target;
|
||
|
||
struct view *grabbed_view = server->grabbed_view;
|
||
if (grabbed_view) {
|
||
view_move_to_workspace(grabbed_view, target);
|
||
}
|
||
|
||
/*
|
||
* Make sure we are focusing what the user sees. Only refocus if
|
||
* the focus is not already on an omnipresent view.
|
||
*/
|
||
if (update_focus) {
|
||
struct view *active_view = server->active_view;
|
||
if (!(active_view && active_view->visible_on_all_workspaces)) {
|
||
desktop_focus_topmost_view(server);
|
||
}
|
||
}
|
||
|
||
/* And finally show the OSD */
|
||
_osd_show(server);
|
||
|
||
/*
|
||
* Make sure we are not carrying around a
|
||
* cursor image from the previous desktop
|
||
*/
|
||
cursor_update_focus(server);
|
||
|
||
/* Ensure that only currently visible fullscreen windows hide the top layer */
|
||
desktop_update_top_layer_visibility(server);
|
||
|
||
lab_cosmic_workspace_set_active(target->cosmic_workspace, true);
|
||
lab_ext_workspace_set_active(target->ext_workspace, true);
|
||
}
|
||
|
||
void
|
||
workspaces_osd_hide(struct seat *seat)
|
||
{
|
||
assert(seat);
|
||
struct output *output;
|
||
struct server *server = seat->server;
|
||
wl_list_for_each(output, &server->outputs, link) {
|
||
if (!output->workspace_osd) {
|
||
continue;
|
||
}
|
||
wlr_scene_node_set_enabled(&output->workspace_osd->node, false);
|
||
wlr_scene_buffer_set_buffer(output->workspace_osd, NULL);
|
||
}
|
||
seat->workspace_osd_shown_by_modifier = false;
|
||
|
||
/* Update the cursor focus in case it was on top of the OSD before */
|
||
cursor_update_focus(server);
|
||
}
|
||
|
||
struct workspace *
|
||
workspaces_find(struct workspace *anchor, const char *name, bool wrap)
|
||
{
|
||
assert(anchor);
|
||
if (!name) {
|
||
return NULL;
|
||
}
|
||
struct server *server = anchor->server;
|
||
struct wl_list *workspaces = &server->workspaces.all;
|
||
|
||
if (!strcasecmp(name, "current")) {
|
||
return anchor;
|
||
} else if (!strcasecmp(name, "last")) {
|
||
return server->workspaces.last;
|
||
} else if (!strcasecmp(name, "left")) {
|
||
return get_prev(anchor, workspaces, wrap);
|
||
} else if (!strcasecmp(name, "right")) {
|
||
return get_next(anchor, workspaces, wrap);
|
||
} else if (!strcasecmp(name, "left-occupied")) {
|
||
return get_prev_occupied(anchor, workspaces, wrap);
|
||
} else if (!strcasecmp(name, "right-occupied")) {
|
||
return get_next_occupied(anchor, workspaces, wrap);
|
||
}
|
||
return workspace_find_by_name(server, name);
|
||
}
|
||
|
||
static void
|
||
destroy_workspace(struct workspace *workspace)
|
||
{
|
||
wlr_scene_node_destroy(&workspace->tree->node);
|
||
zfree(workspace->name);
|
||
wl_list_remove(&workspace->link);
|
||
wl_list_remove(&workspace->on_cosmic.activate.link);
|
||
wl_list_remove(&workspace->on_ext.activate.link);
|
||
|
||
lab_cosmic_workspace_destroy(workspace->cosmic_workspace);
|
||
lab_ext_workspace_destroy(workspace->ext_workspace);
|
||
free(workspace);
|
||
}
|
||
|
||
void
|
||
workspaces_reconfigure(struct server *server)
|
||
{
|
||
/*
|
||
* Compare actual workspace list with the new desired configuration to:
|
||
* - Update names
|
||
* - Add workspaces if more workspaces are desired
|
||
* - Destroy workspaces if fewer workspace are desired
|
||
*/
|
||
|
||
struct wl_list *workspace_link = server->workspaces.all.next;
|
||
|
||
struct workspace_config *conf;
|
||
wl_list_for_each(conf, &rc.workspace_config.workspaces, link) {
|
||
struct workspace *workspace = wl_container_of(
|
||
workspace_link, workspace, link);
|
||
|
||
if (workspace_link == &server->workspaces.all) {
|
||
/* # of configured workspaces increased */
|
||
wlr_log(WLR_DEBUG, "Adding workspace \"%s\"",
|
||
conf->name);
|
||
add_workspace(server, conf->name);
|
||
continue;
|
||
}
|
||
if (strcmp(workspace->name, conf->name)) {
|
||
/* Workspace is renamed */
|
||
wlr_log(WLR_DEBUG, "Renaming workspace \"%s\" to \"%s\"",
|
||
workspace->name, conf->name);
|
||
xstrdup_replace(workspace->name, conf->name);
|
||
lab_cosmic_workspace_set_name(
|
||
workspace->cosmic_workspace, workspace->name);
|
||
lab_ext_workspace_set_name(
|
||
workspace->ext_workspace, workspace->name);
|
||
}
|
||
workspace_link = workspace_link->next;
|
||
}
|
||
|
||
if (workspace_link == &server->workspaces.all) {
|
||
return;
|
||
}
|
||
|
||
/* # of configured workspaces decreased */
|
||
overlay_finish(&server->seat);
|
||
struct workspace *first_workspace =
|
||
wl_container_of(server->workspaces.all.next, first_workspace, link);
|
||
|
||
while (workspace_link != &server->workspaces.all) {
|
||
struct workspace *workspace = wl_container_of(
|
||
workspace_link, workspace, link);
|
||
|
||
wlr_log(WLR_DEBUG, "Destroying workspace \"%s\"",
|
||
workspace->name);
|
||
|
||
struct view *view;
|
||
wl_list_for_each(view, &server->views, link) {
|
||
if (view->workspace == workspace) {
|
||
view_move_to_workspace(view, first_workspace);
|
||
}
|
||
}
|
||
|
||
if (server->workspaces.current == workspace) {
|
||
workspaces_switch_to(first_workspace,
|
||
/* update_focus */ true);
|
||
}
|
||
if (server->workspaces.last == workspace) {
|
||
server->workspaces.last = first_workspace;
|
||
}
|
||
|
||
workspace_link = workspace_link->next;
|
||
destroy_workspace(workspace);
|
||
}
|
||
}
|
||
|
||
void
|
||
workspaces_destroy(struct server *server)
|
||
{
|
||
struct workspace *workspace, *tmp;
|
||
wl_list_for_each_safe(workspace, tmp, &server->workspaces.all, link) {
|
||
destroy_workspace(workspace);
|
||
}
|
||
assert(wl_list_empty(&server->workspaces.all));
|
||
}
|