+void App::surface_set_layout_split(uint32_t surface_id, uint32_t sub_surface_id) {
+ if (!this->controller->surface_exists(surface_id)) {
+ logerror("Surface %d does not exist", int(surface_id));
+ return;
+ }
+
+ auto o_layer_id = this->layers.get_layer_id(surface_id);
+
+ if (!o_layer_id) {
+ logerror("Surface %d is not associated with any layer!", int(surface_id));
+ return;
+ }
+
+ uint32_t layer_id = o_layer_id.value();
+ logdebug("surface_set_layout for surface %u on layer %u", surface_id,
+ layer_id);
+
+ auto const &layer = this->layers.get_layer(layer_id);
+ auto rect = layer.value().rect;
+ auto &s = this->controller->surfaces[surface_id];
+ auto &ss = this->controller->surfaces[sub_surface_id];
+
+ int x = rect.x;
+ int y = rect.y;
+ int w = rect.w;
+ int h = rect.h;
+
+ this->state.main = surface_id;
+ this->state.sub = sub_surface_id;
+ this->state.state = LayoutState::LayoutSplit;
+
+ // less-than-0 values refer to MAX + 1 - $VALUE
+ // e.g. MAX is either screen width or height
+ if (w < 0) {
+ w = this->controller->output_size.w + 1 + w;
+ }
+ if (h < 0) {
+ h = this->controller->output_size.h + 1 + h;
+ }
+
+ int x_off = 0;
+ int y_off = 0;
+
+ // split along major axis
+ if (w > h) {
+ w /= 2;
+ x_off = w;
+ } else {
+ h /= 2;
+ y_off = h;
+ }
+
+ // configure surface to wxh dimensions
+ s->set_configuration(w, h);
+ // set source reactangle, even if we should not need to set it.
+ s->set_source_rectangle(0, 0, w, h);
+ // set destination to the display rectangle
+ s->set_destination_rectangle(x, y, w, h);
+
+ s->set_visibility(1);
+ s->set_opacity(256);
+
+ // configure surface to wxh dimensions
+ ss->set_configuration(w, h);
+ // set source reactangle, even if we should not need to set it.
+ ss->set_source_rectangle(0, 0, w, h);
+ // set destination to the display rectangle
+ ss->set_destination_rectangle(x+x_off, y+y_off, w, h);
+
+ ss->set_visibility(1);
+ ss->set_opacity(256);
+
+ this->controller->commit_changes();
+ this->display->roundtrip();
+
+ //redraw_fix(this, s, x, y, w, h);
+ //redraw_fix(this, ss, x+x_off, y+y_off, w, h);
+
+ logdebug("Surface %u now on layer %u with rect { %d, %d, %d, %d }",
+ surface_id, layer_id, x, y, w, h);
+}
+
+char const *App::activate_surface(char const *drawing_name) {
+ int surface_id = -1;
+
+ {
+ auto oid = this->lookup_id(drawing_name);
+ if (oid) {
+ surface_id = oid.value();
+ } else {
+ return "Surface does not exist";
+ }
+ }
+
+ if (!this->controller->surface_exists(surface_id)) {
+ return "Surface does not exist";
+ }
+
+ if (this->state.main == surface_id || this->state.sub == surface_id) {
+ return "Surface already active";
+ }
+
+ // This should involve a policy check, but as we do not (yet) have
+ // such a thing, we will just switch to this surface.
+ // XXX: input focus missing!!1
+
+ if (this->state != LayoutState{}) {
+ switch (this->state.state) {
+ case LayoutState::LayoutSingle:
+ if (this->can_split(surface_id)) {
+ this->surface_set_layout_split(this->state.main, surface_id);
+ return nullptr;
+ }
+ break;
+
+ case LayoutState::LayoutSplit:
+ if (this->can_split(surface_id)) {
+ this->deactivate(this->state.sub);
+ this->surface_set_layout_split(this->state.main, surface_id);
+ }
+
+ case LayoutState::LayoutNone:
+ break;
+ }
+ }
+
+ // Make it visible, no (or little effect) if already visible
+ auto &s = this->controller->surfaces[surface_id];
+
+ // Set all others invisible
+ for (auto &i : this->controller->surfaces) {
+ auto &si = this->controller->sprops[i.second->id];
+ if (si.id != s->id && si.visibility != 0 &&
+ int(si.id) != this->layers.main_surface) {
+ this->deactivate(si.id);
+ }
+ }
+ this->activate(s->id);
+
+ // commit changes
+ this->controller->commit_changes();
+ this->display->flush();
+
+ this->state.main = surface_id;
+ this->state.state = LayoutState::LayoutSingle;
+
+ // no error
+ return nullptr;
+}
+
+char const *App::deactivate_surface(char const *drawing_name) {
+ int surface_id = -1;
+
+ {
+ auto oid = this->lookup_id(drawing_name);
+ if (oid) {
+ surface_id = oid.value();
+ } else {
+ return "Surface does not exist";
+ }
+ }
+
+ if (surface_id == this->layers.main_surface) {
+ return "Cannot deactivate main_surface";
+ }
+
+ switch (this->state.state) {
+ case LayoutState::LayoutSplit:
+ if (surface_id == this->state.main) {
+ this->deactivate(surface_id);
+ this->surface_set_layout_full(this->state.main);
+
+ this->deactivate(this->state.sub);
+ this->surface_set_layout_full(this->state.sub);
+
+ this->state.main = -1;
+ this->state.sub = -1;
+ this->state.state = LayoutState::LayoutSingle;
+ } else if (surface_id == this->state.sub) {
+ this->deactivate(surface_id);
+ this->surface_set_layout_full(this->state.sub);
+ this->surface_set_layout_full(this->state.main);
+
+ // XXX send syndraw events....
+
+ this->state.sub = -1;
+ this->state.state = LayoutState::LayoutSingle;
+ }
+ break;
+
+ case LayoutState::LayoutSingle:
+ this->deactivate(surface_id);
+ this->state.main = -1;
+ this->state.sub = -1;
+ break;
+
+ case LayoutState::LayoutNone:
+ break;
+ }
+
+
+ this->controller->commit_changes();
+ this->display->flush();
+
+ return nullptr;
+}
+
+// _ _ _____ _
+// _ __ _ __ _____ _(_) ___ __| | | ____|_ _____ _ __ | |_ ___
+// | '_ \| '__/ _ \ \/ / |/ _ \/ _` | | _| \ \ / / _ \ '_ \| __/ __|
+// | |_) | | | (_) > <| | __/ (_| | | |___ \ V / __/ | | | |_\__ \
+// | .__/|_| \___/_/\_\_|\___|\__,_| |_____| \_/ \___|_| |_|\__|___/
+// |_|
+void App::surface_created(uint32_t surface_id) {
+ logdebug("surface_id is %u", surface_id);
+
+ this->surface_set_layout_full(surface_id);
+
+ this->controller->layers[this->layers.get_layer_id(surface_id).value()]
+ ->add_surface(this->controller->surfaces[surface_id].get());
+
+ // activate the main_surface right away
+ if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
+ logdebug("Activating main_surface (%d)", surface_id);
+
+ this->activate_surface(
+ this->lookup_name(surface_id).value_or("unknown-name").c_str());
+ }
+}
+
+void App::surface_removed(uint32_t surface_id) {
+ logdebug("surface_id is %u", surface_id);
+
+ this->id_alloc.remove_id(surface_id);
+}
+
+void App::emit_activated(char const *label) {
+ this->api.send_event("activated", label);
+}
+
+void App::emit_deactivated(char const *label) {
+ this->api.send_event("deactivated", label);
+}
+
+void App::emit_syncdraw(char const *label) {
+ this->api.send_event("syncdraw", label);
+}
+
+void App::emit_flushdraw(char const *label) {
+ this->api.send_event("syncdraw", label);
+}
+
+void App::emit_visible(char const *label, bool is_visible) {
+ this->api.send_event(is_visible ? "visible" : "invisible", label);
+}
+
+void App::emit_invisible(char const *label) { return emit_visible(label, 0); }
+
+void App::emit_visible(char const *label) { return emit_visible(label, 1); }
+
+result<int> App::request_surface(char const *drawing_name) {
+ auto lid = this->layers.get_layer_id(std::string(drawing_name));
+ if (!lid) {
+ // XXX: to we need to put these applications on the App layer?
+ return Err<int>("Drawing name does not match any role");
+ }
+
+ auto rname = this->lookup_id(drawing_name);
+ if (!rname) {
+ // name does not exist yet, allocate surface id...
+ auto id = int(this->id_alloc.generate_id(drawing_name));
+ this->layers.add_surface(id, lid.value());
+
+ // XXX: we set the main_surface[_name] here and now,
+ // not sure if we want this, but it worked so far.
+ if (!this->layers.main_surface_name.empty() &&
+ this->layers.main_surface_name == drawing_name) {
+ this->layers.main_surface = id;
+ logdebug("Set main_surface id to %u", id);
+ }
+
+ return Ok<int>(id);
+ }
+
+ // Check currently registered drawing names if it is already there.
+ return Err<int>("Surface already present");
+}
+
+void App::activate(unsigned id) {
+ if (this->controller->sprops[id].visibility == 0) {
+ this->controller->surfaces[id]->set_visibility(1);
+ char const *label =
+ this->lookup_name(id).value_or("unknown-name").c_str();
+ this->emit_activated(label);
+ this->emit_visible(label);
+ }
+}
+
+void App::deactivate(unsigned id) {
+ if (this->controller->sprops[id].visibility != 0) {
+ this->controller->surfaces[id]->set_visibility(0);
+ char const *label =
+ this->lookup_name(id).value_or("unknown-name").c_str();
+ this->emit_deactivated(label);
+ this->emit_invisible(label);
+ }
+}
+
+bool App::can_split(unsigned new_id) {
+ if (this->state.state == LayoutState::LayoutSingle) {
+ auto new_id_layer = this->layers.get_layer_id(new_id).value();
+ auto current_id_layer =
+ this->layers.get_layer_id(this->state.main).value();
+
+ // surfaces are on separate layers, don't bother.
+ if (new_id_layer != current_id_layer) {
+ return false;
+ }
+
+ std::string const &new_id_str = this->lookup_name(new_id).value();
+ std::string const &cur_id_str =
+ this->lookup_name(this->state.main).value();
+
+ auto const &layer = this->layers.get_layer(new_id_layer);
+
+ logdebug("layer info name: %s", layer->name.c_str());
+
+ if (layer->layouts.empty()) {
+ return false;
+ }
+
+ for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
+ logdebug("%d main_match '%s'", new_id_layer, i->main_match.c_str());
+ auto rem = std::regex(i->main_match);
+ if (std::regex_match(cur_id_str, rem)) {
+ // build the second one only if the first already matched
+ logdebug("%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
+ auto res = std::regex(i->sub_match);
+ if (std::regex_match(new_id_str, res)) {
+ return true;
+ }
+ }
+ }
+ }
+
+ return false;