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Clean up listener handling for layer surfaces

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This commit is contained in:
Isaac Freund 2020-04-17 16:00:05 +02:00
parent 76fedd7450
commit fb1414a052
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GPG Key ID: 86DED400DDFD7A11
2 changed files with 52 additions and 23 deletions
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72
src/layer_surface.zig
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@ -11,12 +11,18 @@ pub const LayerSurface = struct {
output: *Output,
wlr_layer_surface: *c.wlr_layer_surface_v1,
/// True if the layer surface is currently mapped
mapped: bool,
box: Box,
layer: c.zwlr_layer_shell_v1_layer,
// Listeners active the entire lifetime of the layser surface
listen_destroy: c.wl_listener,
listen_map: c.wl_listener,
listen_unmap: c.wl_listener,
listen_destroy: c.wl_listener,
// Listeners only active while the layer surface is mapped
listen_commit: c.wl_listener,
listen_new_popup: c.wl_listener,
@ -29,23 +35,20 @@ pub const LayerSurface = struct {
self.output = output;
self.wlr_layer_surface = wlr_layer_surface;
self.mapped = false;
self.box = undefined;
self.layer = layer;
// Set up listeners that are active for the entire lifetime of the layer surface
self.listen_destroy.notify = handleDestroy;
c.wl_signal_add(&self.wlr_layer_surface.events.destroy, &self.listen_destroy);
self.listen_map.notify = handleMap;
c.wl_signal_add(&self.wlr_layer_surface.events.map, &self.listen_map);
self.listen_unmap.notify = handleUnmap;
c.wl_signal_add(&self.wlr_layer_surface.events.unmap, &self.listen_unmap);
self.listen_destroy.notify = handleDestroy;
c.wl_signal_add(&self.wlr_layer_surface.events.destroy, &self.listen_destroy);
self.listen_commit.notify = handleCommit;
c.wl_signal_add(&self.wlr_layer_surface.surface.*.events.commit, &self.listen_commit);
self.listen_new_popup.notify = handleNewPopup;
c.wl_signal_add(&self.wlr_layer_surface.events.new_popup, &self.listen_new_popup);
}
/// Send a configure event to the client with the dimensions of the current box
@ -53,19 +56,6 @@ pub const LayerSurface = struct {
c.wlr_layer_surface_v1_configure(self.wlr_layer_surface, self.box.width, self.box.height);
}
fn handleMap(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
const layer_surface = @fieldParentPtr(LayerSurface, "listen_map", listener.?);
c.wlr_surface_send_enter(
layer_surface.wlr_layer_surface.surface,
layer_surface.wlr_layer_surface.output,
);
layer_surface.output.arrangeLayers();
}
fn handleUnmap(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
const layer_surface = @fieldParentPtr(LayerSurface, "listen_unmap", listener.?);
}
fn handleDestroy(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
const layer_surface = @fieldParentPtr(LayerSurface, "listen_destroy", listener.?);
Log.Debug.log("Layer surface '{}' destroyed", .{layer_surface.wlr_layer_surface.namespace});
@ -75,6 +65,42 @@ pub const LayerSurface = struct {
layer_surface.output.root.server.allocator.destroy(node);
layer_surface.output.arrangeLayers();
// Remove listeners active the entire lifetime of the layer surface
c.wl_list_remove(&layer_surface.listen_destroy);
c.wl_list_remove(&layer_surface.listen_map);
c.wl_list_remove(&layer_surface.listen_unmap);
}
fn handleMap(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
const layer_surface = @fieldParentPtr(LayerSurface, "listen_map", listener.?);
const wlr_layer_surface = layer_surface.wlr_layer_surface;
layer_surface.mapped = true;
// Add listeners that are only active while mapped
layer_surface.listen_commit.notify = handleCommit;
c.wl_signal_add(&wlr_layer_surface.surface.*.events.commit, &layer_surface.listen_commit);
layer_surface.listen_new_popup.notify = handleNewPopup;
c.wl_signal_add(&wlr_layer_surface.events.new_popup, &layer_surface.listen_new_popup);
c.wlr_surface_send_enter(
wlr_layer_surface.surface,
wlr_layer_surface.output,
);
layer_surface.output.arrangeLayers();
}
fn handleUnmap(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
const layer_surface = @fieldParentPtr(LayerSurface, "listen_unmap", listener.?);
layer_surface.mapped = false;
// remove listeners only active while the layer surface is mapped
c.wl_list_remove(&layer_surface.listen_commit.link);
c.wl_list_remove(&layer_surface.listen_new_popup.link);
}
fn handleCommit(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {

3
src/render.zig
View File

@ -73,6 +73,9 @@ fn renderLayer(output: Output, layer: std.TailQueue(LayerSurface), now: *c.struc
var it = layer.first;
while (it) |node| : (it = node.next) {
const layer_surface = &node.data;
if (!layer_surface.mapped) {
continue;
}
var rdata = LayerSurfaceRenderData{
.output = output.wlr_output,
.renderer = output.root.server.wlr_renderer,