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river: Allow applying CSD based on window titles

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This extends the `csd-filter-add` command to allow matching on window
titles as well, using a `csd-filter-add kind pattern` syntax. The
following kinds are supported:

  * `title`, which matches window titles
  * `app-id`, which matches app ids

Only exact matches are considered.

As an example following configuration applies client-side decorations to
all windows with the title 'asdf with spaces'.

    riverctl csd-filter-add title 'asdf with spaces'
This commit is contained in:
Ben Fiedler
2021-09-06 15:28:05 +02:00
committed by Isaac Freund
parent 98aed8d47e
commit 5f6428bafe
6 changed files with 79 additions and 33 deletions
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50
river/command/filter.zig
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@ -79,15 +79,22 @@ pub fn csdFilterAdd(
args: []const [:0]const u8,
out: *?[]const u8,
) Error!void {
if (args.len < 2) return Error.NotEnoughArguments;
if (args.len > 2) return Error.TooManyArguments;
if (args.len < 3) return Error.NotEnoughArguments;
if (args.len > 3) return Error.TooManyArguments;
const gop = try server.config.csd_filter.getOrPut(util.gpa, args[1]);
const kind = std.meta.stringToEnum(FilterKind, args[1]) orelse return Error.UnknownOption;
const map = switch (kind) {
.@"app-id" => &server.config.csd_filter_app_ids,
.title => &server.config.csd_filter_titles,
};
const key = args[2];
const gop = try map.getOrPut(util.gpa, key);
if (gop.found_existing) return;
errdefer assert(server.config.csd_filter.remove(args[1]));
gop.key_ptr.* = try std.mem.dupe(util.gpa, u8, args[1]);
errdefer assert(map.remove(key));
gop.key_ptr.* = try std.mem.dupe(util.gpa, u8, key);
csdFilterUpdateViews(args[1], .add);
csdFilterUpdateViews(kind, key, .add);
}
pub fn csdFilterRemove(
@ -96,23 +103,29 @@ pub fn csdFilterRemove(
args: []const [:0]const u8,
out: *?[]const u8,
) Error!void {
if (args.len < 2) return Error.NotEnoughArguments;
if (args.len > 2) return Error.TooManyArguments;
if (args.len < 3) return Error.NotEnoughArguments;
if (args.len > 3) return Error.TooManyArguments;
if (server.config.csd_filter.fetchRemove(args[1])) |kv| {
const kind = std.meta.stringToEnum(FilterKind, args[1]) orelse return Error.UnknownOption;
const map = switch (kind) {
.@"app-id" => &server.config.csd_filter_app_ids,
.title => &server.config.csd_filter_titles,
};
const key = args[2];
if (map.fetchRemove(key)) |kv| {
util.gpa.free(kv.key);
csdFilterUpdateViews(args[1], .remove);
csdFilterUpdateViews(kind, key, .remove);
}
}
fn csdFilterUpdateViews(app_id: []const u8, operation: enum { add, remove }) void {
fn csdFilterUpdateViews(kind: FilterKind, pattern: []const u8, operation: enum { add, remove }) void {
var decoration_it = server.decoration_manager.decorations.first;
while (decoration_it) |decoration_node| : (decoration_it = decoration_node.next) {
const xdg_toplevel_decoration = decoration_node.data.xdg_toplevel_decoration;
const view = @intToPtr(*View, xdg_toplevel_decoration.surface.data);
const view_app_id = mem.span(view.getAppId()) orelse continue;
if (mem.eql(u8, app_id, view_app_id)) {
const view = @intToPtr(*View, xdg_toplevel_decoration.surface.data);
if (viewMatchesPattern(kind, pattern, view)) {
const toplevel = view.impl.xdg_toplevel.xdg_surface.role_data.toplevel;
switch (operation) {
.add => {
@ -129,3 +142,12 @@ fn csdFilterUpdateViews(app_id: []const u8, operation: enum { add, remove }) voi
}
}
}
fn viewMatchesPattern(kind: FilterKind, pattern: []const u8, view: *View) bool {
const p = switch (kind) {
.@"app-id" => mem.span(view.getAppId()),
.title => mem.span(view.getTitle()),
} orelse return false;
return mem.eql(u8, pattern, p);
}