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sway-patched-tray-menu-github/sway/ipc-json.c
Ryan Dwyer 7586f150c0 Implement type safe arguments and demote sway_container 
This commit changes the meaning of sway_container so that it only refers
to layout containers and view containers. Workspaces, outputs and the
root are no longer known as containers. Instead, root, outputs,
workspaces and containers are all a type of node, and containers come in
two types: layout containers and view containers.

In addition to the above, this implements type safe variables. This
means we use specific types such as sway_output and sway_workspace
instead of generic containers or nodes. However, it's worth noting that
in a few places places (eg. seat focus and transactions) referring to
them in a generic way is unavoidable which is why we still use nodes in
some places.

If you want a TL;DR, look at node.h, as well as the struct definitions
for root, output, workspace and container. Note that sway_output now
contains a workspaces list, and workspaces now contain a tiling and
floating list, and containers now contain a pointer back to the
workspace.

There are now functions for seat_get_focused_workspace and
seat_get_focused_container. The latter will return NULL if a workspace
itself is focused. Most other seat functions like seat_get_focus and
seat_set_focus now accept and return nodes.

In the config->handler_context struct, current_container has been
replaced with three pointers: node, container and workspace. node is the
same as what current_container was, while workspace is the workspace
that the node resides on and container is the actual container, which
may be NULL if a workspace itself is focused.

The global root_container variable has been replaced with one simply
called root, which is a pointer to the sway_root instance.

The way outputs are created, enabled, disabled and destroyed has
changed. Previously we'd wrap the sway_output in a container when it is
enabled, but as we don't have containers any more it needs a different
approach. The output_create and output_destroy functions previously
created/destroyed the container, but now they create/destroy the
sway_output. There is a new function output_disable to disable an output
without destroying it.

Containers have a new view property. If this is populated then the
container is a view container, otherwise it's a layout container. Like
before, this property is immutable for the life of the container.

Containers have both a `sway_container *parent` and
`sway_workspace *workspace`. As we use specific types now, parent cannot
point to a workspace so it'll be NULL for containers which are direct
children of the workspace. The workspace property is set for all
containers, except those which are hidden in the scratchpad as they have
no workspace.

In some cases we need to refer to workspaces in a container-like way.
For example, workspaces have layout and children, but when using
specific types this makes it difficult. Likewise, it's difficult for a
container to get its parent's layout when the parent could be another
container or a workspace. To make it easier, some helper functions have
been created: container_parent_layout and container_get_siblings.

container_remove_child has been renamed to container_detach and
container_replace_child has been renamed to container_replace.

`container_handle_fullscreen_reparent(con, old_parent)` has had the
old_parent removed. We now unfullscreen the workspace when detaching the
container, so this function is simplified and only needs one argument
now.

container_notify_subtree_changed has been renamed to
container_update_representation. This is more descriptive of its
purpose. I also wanted to be able to call it with whatever container was
changed rather than the container's parent, which makes bubbling up to
the workspace easier.

There are now state structs per node thing. ie. sway_output_state,
sway_workspace_state and sway_container_state.

The focus, move and layout commands have been completely refactored to
work with the specific types. I considered making these a separate PR,
but I'd be backporting my changes only to replace them again, and it's
easier just to test everything at once.
2018-09-05 18:01:43 +10:00

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#include <json-c/json.h>
#include <stdio.h>
#include <ctype.h>
#include "log.h"
#include "sway/config.h"
#include "sway/ipc-json.h"
#include "sway/tree/container.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
#include "sway/output.h"
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_output.h>
#include "wlr-layer-shell-unstable-v1-protocol.h"
static const char *ipc_json_layout_description(enum sway_container_layout l) {
switch (l) {
case L_VERT:
return "splitv";
case L_HORIZ:
return "splith";
case L_TABBED:
return "tabbed";
case L_STACKED:
return "stacked";
case L_NONE:
break;
}
return "none";
}
json_object *ipc_json_get_version() {
int major = 0, minor = 0, patch = 0;
json_object *version = json_object_new_object();
sscanf(SWAY_VERSION, "%u.%u.%u", &major, &minor, &patch);
json_object_object_add(version, "human_readable", json_object_new_string(SWAY_VERSION));
json_object_object_add(version, "variant", json_object_new_string("sway"));
json_object_object_add(version, "major", json_object_new_int(major));
json_object_object_add(version, "minor", json_object_new_int(minor));
json_object_object_add(version, "patch", json_object_new_int(patch));
json_object_object_add(version, "loaded_config_file_name", json_object_new_string(config->current_config_path));
return version;
}
static json_object *ipc_json_create_rect(struct wlr_box *box) {
json_object *rect = json_object_new_object();
json_object_object_add(rect, "x", json_object_new_int(box->x));
json_object_object_add(rect, "y", json_object_new_int(box->y));
json_object_object_add(rect, "width", json_object_new_int(box->width));
json_object_object_add(rect, "height", json_object_new_int(box->height));
return rect;
}
static void ipc_json_describe_root(struct sway_root *root, json_object *object) {
json_object_object_add(object, "type", json_object_new_string("root"));
json_object_object_add(object, "layout", json_object_new_string("splith"));
}
static const char *ipc_json_get_output_transform(enum wl_output_transform transform) {
switch (transform) {
case WL_OUTPUT_TRANSFORM_NORMAL:
return "normal";
case WL_OUTPUT_TRANSFORM_90:
return "90";
case WL_OUTPUT_TRANSFORM_180:
return "180";
case WL_OUTPUT_TRANSFORM_270:
return "270";
case WL_OUTPUT_TRANSFORM_FLIPPED:
return "flipped";
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
return "flipped-90";
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
return "flipped-180";
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
return "flipped-270";
}
return NULL;
}
static void ipc_json_describe_output(struct sway_output *output,
json_object *object) {
struct wlr_output *wlr_output = output->wlr_output;
json_object_object_add(object, "type", json_object_new_string("output"));
json_object_object_add(object, "active", json_object_new_boolean(true));
json_object_object_add(object, "primary", json_object_new_boolean(false));
json_object_object_add(object, "layout", json_object_new_string("output"));
json_object_object_add(object, "make",
json_object_new_string(wlr_output->make));
json_object_object_add(object, "model",
json_object_new_string(wlr_output->model));
json_object_object_add(object, "serial",
json_object_new_string(wlr_output->serial));
json_object_object_add(object, "scale",
json_object_new_double(wlr_output->scale));
json_object_object_add(object, "refresh",
json_object_new_int(wlr_output->refresh));
json_object_object_add(object, "transform",
json_object_new_string(
ipc_json_get_output_transform(wlr_output->transform)));
struct sway_workspace *ws = output_get_active_workspace(output);
json_object_object_add(object, "current_workspace",
json_object_new_string(ws->name));
json_object *modes_array = json_object_new_array();
struct wlr_output_mode *mode;
wl_list_for_each(mode, &wlr_output->modes, link) {
json_object *mode_object = json_object_new_object();
json_object_object_add(mode_object, "width",
json_object_new_int(mode->width));
json_object_object_add(mode_object, "height",
json_object_new_int(mode->height));
json_object_object_add(mode_object, "refresh",
json_object_new_int(mode->refresh));
json_object_array_add(modes_array, mode_object);
}
json_object_object_add(object, "modes", modes_array);
json_object_object_add(object, "layout", json_object_new_string("output"));
}
json_object *ipc_json_describe_disabled_output(struct sway_output *output) {
struct wlr_output *wlr_output = output->wlr_output;
json_object *object = json_object_new_object();
json_object_object_add(object, "type", json_object_new_string("output"));
json_object_object_add(object, "name",
json_object_new_string(wlr_output->name));
json_object_object_add(object, "active", json_object_new_boolean(false));
json_object_object_add(object, "make",
json_object_new_string(wlr_output->make));
json_object_object_add(object, "model",
json_object_new_string(wlr_output->model));
json_object_object_add(object, "serial",
json_object_new_string(wlr_output->serial));
json_object_object_add(object, "modes", json_object_new_array());
return object;
}
static void ipc_json_describe_workspace(struct sway_workspace *workspace,
json_object *object) {
int num = isdigit(workspace->name[0]) ? atoi(workspace->name) : -1;
json_object_object_add(object, "num", json_object_new_int(num));
json_object_object_add(object, "output", workspace->output ?
json_object_new_string(workspace->output->wlr_output->name) : NULL);
json_object_object_add(object, "type", json_object_new_string("workspace"));
json_object_object_add(object, "urgent",
json_object_new_boolean(workspace->urgent));
json_object_object_add(object, "representation", workspace->representation ?
json_object_new_string(workspace->representation) : NULL);
const char *layout = ipc_json_layout_description(workspace->layout);
json_object_object_add(object, "layout", json_object_new_string(layout));
// Floating
json_object *floating_array = json_object_new_array();
for (int i = 0; i < workspace->floating->length; ++i) {
struct sway_container *floater = workspace->floating->items[i];
json_object_array_add(floating_array,
ipc_json_describe_node_recursive(&floater->node));
}
json_object_object_add(object, "floating_nodes", floating_array);
}
static void ipc_json_describe_view(struct sway_container *c, json_object *object) {
json_object_object_add(object, "name",
c->title ? json_object_new_string(c->title) : NULL);
json_object_object_add(object, "type", json_object_new_string("con"));
if (c->view) {
const char *app_id = view_get_app_id(c->view);
json_object_object_add(object, "app_id",
app_id ? json_object_new_string(app_id) : NULL);
const char *class = view_get_class(c->view);
json_object_object_add(object, "class",
class ? json_object_new_string(class) : NULL);
}
json_object_object_add(object, "layout",
json_object_new_string(ipc_json_layout_description(c->layout)));
bool urgent = c->view ?
view_is_urgent(c->view) : container_has_urgent_child(c);
json_object_object_add(object, "urgent", json_object_new_boolean(urgent));
if (c->view) {
json_object *marks = json_object_new_array();
list_t *view_marks = c->view->marks;
for (int i = 0; i < view_marks->length; ++i) {
json_object_array_add(marks, json_object_new_string(view_marks->items[i]));
}
json_object_object_add(object, "marks", marks);
}
}
struct focus_inactive_data {
struct sway_node *node;
json_object *object;
};
static void focus_inactive_children_iterator(struct sway_node *node,
void *_data) {
struct focus_inactive_data *data = _data;
if (node_get_parent(node) == data->node) {
json_object_array_add(data->object, json_object_new_int(node->id));
}
}
json_object *ipc_json_describe_node(struct sway_node *node) {
struct sway_seat *seat = input_manager_get_default_seat(input_manager);
bool focused = seat_get_focus(seat) == node;
json_object *object = json_object_new_object();
char *name = node_get_name(node);
struct wlr_box box;
node_get_box(node, &box);
json_object_object_add(object, "id", json_object_new_int((int)node->id));
json_object_object_add(object, "name",
name ? json_object_new_string(name) : NULL);
json_object_object_add(object, "rect", ipc_json_create_rect(&box));
json_object_object_add(object, "focused", json_object_new_boolean(focused));
json_object *focus = json_object_new_array();
struct focus_inactive_data data = {
.node = node,
.object = focus,
};
seat_for_each_node(seat, focus_inactive_children_iterator, &data);
json_object_object_add(object, "focus", focus);
switch (node->type) {
case N_ROOT:
ipc_json_describe_root(root, object);
break;
case N_OUTPUT:
ipc_json_describe_output(node->sway_output, object);
break;
case N_CONTAINER:
ipc_json_describe_view(node->sway_container, object);
break;
case N_WORKSPACE:
ipc_json_describe_workspace(node->sway_workspace, object);
break;
}
return object;
}
json_object *ipc_json_describe_node_recursive(struct sway_node *node) {
json_object *object = ipc_json_describe_node(node);
int i;
json_object *children = json_object_new_array();
switch (node->type) {
case N_ROOT:
for (i = 0; i < root->outputs->length; ++i) {
struct sway_output *output = root->outputs->items[i];
json_object_array_add(children,
ipc_json_describe_node_recursive(&output->node));
}
break;
case N_OUTPUT:
for (i = 0; i < node->sway_output->workspaces->length; ++i) {
struct sway_workspace *ws = node->sway_output->workspaces->items[i];
json_object_array_add(children,
ipc_json_describe_node_recursive(&ws->node));
}
break;
case N_WORKSPACE:
for (i = 0; i < node->sway_workspace->tiling->length; ++i) {
struct sway_container *con = node->sway_workspace->tiling->items[i];
json_object_array_add(children,
ipc_json_describe_node_recursive(&con->node));
}
break;
case N_CONTAINER:
if (node->sway_container->children) {
for (i = 0; i < node->sway_container->children->length; ++i) {
struct sway_container *child =
node->sway_container->children->items[i];
json_object_array_add(children,
ipc_json_describe_node_recursive(&child->node));
}
}
break;
}
json_object_object_add(object, "nodes", children);
return object;
}
static const char *describe_device_type(struct sway_input_device *device) {
switch (device->wlr_device->type) {
case WLR_INPUT_DEVICE_POINTER:
return "pointer";
case WLR_INPUT_DEVICE_KEYBOARD:
return "keyboard";
case WLR_INPUT_DEVICE_TOUCH:
return "touch";
case WLR_INPUT_DEVICE_TABLET_TOOL:
return "tablet_tool";
case WLR_INPUT_DEVICE_TABLET_PAD:
return "tablet_pad";
}
return "unknown";
}
json_object *ipc_json_describe_input(struct sway_input_device *device) {
if (!(sway_assert(device, "Device must not be null"))) {
return NULL;
}
json_object *object = json_object_new_object();
json_object_object_add(object, "identifier",
json_object_new_string(device->identifier));
json_object_object_add(object, "name",
json_object_new_string(device->wlr_device->name));
json_object_object_add(object, "vendor",
json_object_new_int(device->wlr_device->vendor));
json_object_object_add(object, "product",
json_object_new_int(device->wlr_device->product));
json_object_object_add(object, "type",
json_object_new_string(describe_device_type(device)));
return object;
}
json_object *ipc_json_describe_seat(struct sway_seat *seat) {
if (!(sway_assert(seat, "Seat must not be null"))) {
return NULL;
}
json_object *object = json_object_new_object();
struct sway_node *focus = seat_get_focus(seat);
json_object_object_add(object, "name",
json_object_new_string(seat->wlr_seat->name));
json_object_object_add(object, "capabilities",
json_object_new_int(seat->wlr_seat->capabilities));
json_object_object_add(object, "focus",
json_object_new_int(focus ? focus->id : 0));
json_object *devices = json_object_new_array();
struct sway_seat_device *device = NULL;
wl_list_for_each(device, &seat->devices, link) {
json_object_array_add(devices, ipc_json_describe_input(device->input_device));
}
json_object_object_add(object, "devices", devices);
return object;
}
json_object *ipc_json_describe_bar_config(struct bar_config *bar) {
if (!sway_assert(bar, "Bar must not be NULL")) {
return NULL;
}
json_object *json = json_object_new_object();
json_object_object_add(json, "id", json_object_new_string(bar->id));
json_object_object_add(json, "mode", json_object_new_string(bar->mode));
json_object_object_add(json, "hidden_state",
json_object_new_string(bar->hidden_state));
json_object_object_add(json, "position",
json_object_new_string(bar->position));
json_object_object_add(json, "status_command",
json_object_new_string(bar->status_command));
json_object_object_add(json, "font",
json_object_new_string((bar->font) ? bar->font : config->font));
if (bar->separator_symbol) {
json_object_object_add(json, "separator_symbol",
json_object_new_string(bar->separator_symbol));
}
json_object_object_add(json, "bar_height",
json_object_new_int(bar->height));
json_object_object_add(json, "wrap_scroll",
json_object_new_boolean(bar->wrap_scroll));
json_object_object_add(json, "workspace_buttons",
json_object_new_boolean(bar->workspace_buttons));
json_object_object_add(json, "strip_workspace_numbers",
json_object_new_boolean(bar->strip_workspace_numbers));
json_object_object_add(json, "binding_mode_indicator",
json_object_new_boolean(bar->binding_mode_indicator));
json_object_object_add(json, "verbose",
json_object_new_boolean(bar->verbose));
json_object_object_add(json, "pango_markup",
json_object_new_boolean(bar->pango_markup));
json_object *colors = json_object_new_object();
json_object_object_add(colors, "background",
json_object_new_string(bar->colors.background));
json_object_object_add(colors, "statusline",
json_object_new_string(bar->colors.statusline));
json_object_object_add(colors, "separator",
json_object_new_string(bar->colors.separator));
if (bar->colors.focused_background) {
json_object_object_add(colors, "focused_background",
json_object_new_string(bar->colors.focused_background));
} else {
json_object_object_add(colors, "focused_background",
json_object_new_string(bar->colors.background));
}
if (bar->colors.focused_statusline) {
json_object_object_add(colors, "focused_statusline",
json_object_new_string(bar->colors.focused_statusline));
} else {
json_object_object_add(colors, "focused_statusline",
json_object_new_string(bar->colors.statusline));
}
if (bar->colors.focused_separator) {
json_object_object_add(colors, "focused_separator",
json_object_new_string(bar->colors.focused_separator));
} else {
json_object_object_add(colors, "focused_separator",
json_object_new_string(bar->colors.separator));
}
json_object_object_add(colors, "focused_workspace_border",
json_object_new_string(bar->colors.focused_workspace_border));
json_object_object_add(colors, "focused_workspace_bg",
json_object_new_string(bar->colors.focused_workspace_bg));
json_object_object_add(colors, "focused_workspace_text",
json_object_new_string(bar->colors.focused_workspace_text));
json_object_object_add(colors, "inactive_workspace_border",
json_object_new_string(bar->colors.inactive_workspace_border));
json_object_object_add(colors, "inactive_workspace_bg",
json_object_new_string(bar->colors.inactive_workspace_bg));
json_object_object_add(colors, "inactive_workspace_text",
json_object_new_string(bar->colors.inactive_workspace_text));
json_object_object_add(colors, "active_workspace_border",
json_object_new_string(bar->colors.active_workspace_border));
json_object_object_add(colors, "active_workspace_bg",
json_object_new_string(bar->colors.active_workspace_bg));
json_object_object_add(colors, "active_workspace_text",
json_object_new_string(bar->colors.active_workspace_text));
json_object_object_add(colors, "urgent_workspace_border",
json_object_new_string(bar->colors.urgent_workspace_border));
json_object_object_add(colors, "urgent_workspace_bg",
json_object_new_string(bar->colors.urgent_workspace_bg));
json_object_object_add(colors, "urgent_workspace_text",
json_object_new_string(bar->colors.urgent_workspace_text));
if (bar->colors.binding_mode_border) {
json_object_object_add(colors, "binding_mode_border",
json_object_new_string(bar->colors.binding_mode_border));
} else {
json_object_object_add(colors, "binding_mode_border",
json_object_new_string(bar->colors.urgent_workspace_border));
}
if (bar->colors.binding_mode_bg) {
json_object_object_add(colors, "binding_mode_bg",
json_object_new_string(bar->colors.binding_mode_bg));
} else {
json_object_object_add(colors, "binding_mode_bg",
json_object_new_string(bar->colors.urgent_workspace_bg));
}
if (bar->colors.binding_mode_text) {
json_object_object_add(colors, "binding_mode_text",
json_object_new_string(bar->colors.binding_mode_text));
} else {
json_object_object_add(colors, "binding_mode_text",
json_object_new_string(bar->colors.urgent_workspace_text));
}
json_object_object_add(json, "colors", colors);
// Add outputs if defined
json_object *outputs = json_object_new_array();
if (bar->outputs && bar->outputs->length > 0) {
for (int i = 0; i < bar->outputs->length; ++i) {
const char *name = bar->outputs->items[i];
json_object_array_add(outputs, json_object_new_string(name));
}
}
json_object_object_add(json, "outputs", outputs);
return json;
}
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