Add pin-view plugin (#245)

* Add pin-view plugin

* Add ipc scripts for pin-view plugin

* Lots of fixes make it work better

* Add boolean to control whether or not the view is resized to the output geometry

ipc-scripts/pin-view.py

@@ -0,0 +1,24 @@
+#!/usr/bin/python3
+
+import os
+import sys
+from wayfire import WayfireSocket
+from wayfire.extra.wpe import WPE
+
+if len(sys.argv) < 4:
+    print(f"Usage: {sys.argv[0]} <view_id: int> <layer: str> <resize: bool> [workspace_x: int], [workspace_y: int]")
+    exit(1)
+
+addr = os.getenv("WAYFIRE_SOCKET")
+
+sock = WayfireSocket(addr)
+wpe = WPE(sock)
+
+for view in sock.list_views():
+    if view["id"] == int(sys.argv[1]):
+        if len(sys.argv) == 4:
+            wpe.pin_view(int(sys.argv[1]), sys.argv[2], sys.argv[3].lower() == "true", None, None)
+        if len(sys.argv) == 5:
+            wpe.pin_view(int(sys.argv[1]), sys.argv[2], sys.argv[3].lower() == "true", int(sys.argv[4]), None)
+        elif len(sys.argv) == 6:
+            wpe.pin_view(int(sys.argv[1]), sys.argv[2], sys.argv[3].lower() == "true", int(sys.argv[4]), int(sys.argv[5]))

ipc-scripts/unpin-view.py

@@ -0,0 +1,17 @@
+#!/usr/bin/python3
+
+import os
+import sys
+from wayfire_socket import *
+
+if len(sys.argv) < 2:
+    print(f"Usage: {sys.argv[0]} <view_id>")
+    exit(1)
+
+addr = os.getenv('WAYFIRE_SOCKET')
+
+commands_sock = WayfireSocket(addr)
+
+for view in commands_sock.list_views():
+    if view["id"] == int(sys.argv[1]):
+        commands_sock.unpin_view(int(sys.argv[1]))

ipc-scripts/wayfire_socket.py

@@ -76,3 +76,19 @@ def ghost_view_toggle(self, view_id: int):
         message = get_msg_template("ghost/ghost_toggle")
         message["data"]["view-id"] = view_id
         return self.send_json(message)
+
+    def pin_view(self, view_id: int, layer: str, ws_x: int, ws_y: int):
+        message = get_msg_template("pin-view/pin")
+        message["data"]["view-id"] = view_id
+        message["data"]["layer"] = layer
+        if ws_x != None:
+            message["data"]["x"] = ws_x
+            message["data"]["y"] = 0
+            if ws_y != None:
+                message["data"]["y"] = ws_y
+        return self.send_json(message)
+
+    def unpin_view(self, view_id: int):
+        message = get_msg_template("pin-view/unpin")
+        message["data"]["view-id"] = view_id
+        return self.send_json(message)

metadata/meson.build

@@ -13,6 +13,7 @@ install_data('join-views.xml', install_dir: wayfire.get_variable(pkgconfig: 'met
 install_data('keycolor.xml', install_dir: wayfire.get_variable(pkgconfig: 'metadatadir'))
 install_data('mag.xml', install_dir: wayfire.get_variable(pkgconfig: 'metadatadir'))
 install_data('obs.xml', install_dir: wayfire.get_variable(pkgconfig: 'metadatadir'))
+install_data('pin-view.xml', install_dir: wayfire.get_variable(pkgconfig: 'metadatadir'))
 install_data('showrepaint.xml', install_dir: wayfire.get_variable(pkgconfig: 'metadatadir'))
 install_data('view-shot.xml', install_dir: wayfire.get_variable(pkgconfig: 'metadatadir'))
 install_data('water.xml', install_dir: wayfire.get_variable(pkgconfig: 'metadatadir'))

metadata/pin-view.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<wayfire>
+	<plugin name="pin-view">
+	<_short>Pin View</_short>
+	<_long>Set a view layer, role and workspace</_long>
+	<category>Window Management</category>
+	</plugin>
+</wayfire>

src/meson.build

@@ -66,6 +66,9 @@ if json.found()
 obs = shared_module('obs', 'obs.cpp',
     dependencies: [wayfire, json],
     install: true, install_dir: join_paths(get_option('libdir'), 'wayfire'))
+pin_view = shared_module('pin-view', 'pin-view.cpp',
+    dependencies: [wayfire, json],
+    install: true, install_dir: join_paths(get_option('libdir'), 'wayfire'))
 endif
 
 showrepaint = shared_module('showrepaint', 'showrepaint.cpp',

src/pin-view.cpp

@@ -0,0 +1,237 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2024 Scott Moreau <oreaus@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <wayfire/core.hpp>
+#include <wayfire/view.hpp>
+#include <wayfire/plugin.hpp>
+#include <wayfire/output.hpp>
+#include <wayfire/view-helpers.hpp>
+#include <wayfire/util/duration.hpp>
+#include <wayfire/render-manager.hpp>
+#include <wayfire/view-transform.hpp>
+#include <wayfire/scene-operations.hpp>
+#include <wayfire/per-output-plugin.hpp>
+#include <wayfire/signal-definitions.hpp>
+#include <wayfire/plugins/ipc/ipc-helpers.hpp>
+#include <wayfire/plugins/common/shared-core-data.hpp>
+#include <wayfire/plugins/ipc/ipc-method-repository.hpp>
+
+namespace wf
+{
+namespace pin_view
+{
+class pin_view_data : public wf::custom_data_t
+{
+  public:
+    wf::geometry_t geometry;
+    wf::point_t workspace;
+    wf::view_role_t role;
+};
+class wayfire_pin_view : public wf::plugin_interface_t
+{
+    wf::shared_data::ref_ptr_t<wf::ipc::method_repository_t> ipc_repo;
+
+  public:
+    void init() override
+    {
+        ipc_repo->register_method("pin-view/pin", ipc_pin_view);
+        ipc_repo->register_method("pin-view/unpin", ipc_unpin_view);
+    }
+
+    wf::ipc::method_callback ipc_pin_view = [=] (nlohmann::json data) -> nlohmann::json
+    {
+        WFJSON_EXPECT_FIELD(data, "view-id", number_unsigned);
+        WFJSON_EXPECT_FIELD(data, "layer", string);
+        WFJSON_EXPECT_FIELD(data, "resize", boolean);
+        /* workspace x,y */
+        WFJSON_OPTIONAL_FIELD(data, "x", number_unsigned);
+        WFJSON_OPTIONAL_FIELD(data, "y", number_unsigned);
+
+        auto view = wf::ipc::find_view_by_id(data["view-id"]);
+        if (view)
+        {
+            auto output = view->get_output();
+            output->connect(&on_workspace_changed);
+            if (!view->get_data<pin_view_data>())
+            {
+                pin_view_data pv_data;
+                pv_data.role = view->role;
+
+                if (auto toplevel = toplevel_cast(view))
+                {
+                    pv_data.workspace = output->wset()->get_view_main_workspace(toplevel);
+                    pv_data.geometry  = toplevel->get_geometry();
+                }
+
+                view->store_data(std::make_unique<pin_view_data>(pv_data));
+            }
+
+            wf::scene::layer layer;
+            if (data["layer"] == "background")
+            {
+                layer = wf::scene::layer::BACKGROUND;
+            } else if (data["layer"] == "bottom")
+            {
+                layer = wf::scene::layer::BOTTOM;
+            } else if (data["layer"] == "workspace")
+            {
+                layer = wf::scene::layer::WORKSPACE;
+            } else if (data["layer"] == "top")
+            {
+                layer = wf::scene::layer::TOP;
+            } else if (data["layer"] == "unmanaged")
+            {
+                layer = wf::scene::layer::UNMANAGED;
+            } else if (data["layer"] == "overlay")
+            {
+                layer = wf::scene::layer::OVERLAY;
+            } else if (data["layer"] == "lock")
+            {
+                layer = wf::scene::layer::LOCK;
+            } else
+            {
+                layer = wf::scene::layer::TOP;
+            }
+
+            bool resize = data["resize"];
+            auto og = output->get_relative_geometry();
+            int x = 0, y = 0;
+            if (data.contains("x"))
+            {
+                x = data["x"].get<int>();
+                if (data.contains("y"))
+                {
+                    y = data["y"].get<int>();
+                }
+
+                wf::point_t nws{x, y};
+                if (auto toplevel = toplevel_cast(view))
+                {
+                    auto vg  = toplevel->get_geometry();
+                    auto cws = output->wset()->get_view_main_workspace(toplevel);
+                    toplevel->set_geometry(wf::geometry_t{(nws.x - cws.x) * og.width,
+                        (nws.y - cws.y) * og.height, resize ? og.width : vg.width,
+                        resize ? og.height : vg.height});
+                }
+            } else
+            {
+                if (auto toplevel = toplevel_cast(view))
+                {
+                    auto vg = toplevel->get_geometry();
+                    wf::point_t nws = output->wset()->get_current_workspace();
+                    auto cws = output->wset()->get_view_main_workspace(toplevel);
+                    toplevel->move(vg.x + (nws.x - cws.x) * og.width, vg.y + (nws.y - cws.y) * og.height);
+                    if (resize)
+                    {
+                        toplevel->set_geometry(og);
+                    }
+                }
+
+                view->role = wf::VIEW_ROLE_DESKTOP_ENVIRONMENT;
+                wf::scene::readd_front(view->get_output()->node_for_layer(layer), view->get_root_node());
+                return wf::ipc::json_ok();
+            }
+
+            wf::scene::readd_front(output->node_for_layer(layer), view->get_root_node());
+        } else
+        {
+            return wf::ipc::json_error("Failed to find view with given id.");
+        }
+
+        return wf::ipc::json_ok();
+    };
+
+    wf::ipc::method_callback ipc_unpin_view = [=] (nlohmann::json data) -> nlohmann::json
+    {
+        WFJSON_EXPECT_FIELD(data, "view-id", number_unsigned);
+
+        auto view = wf::ipc::find_view_by_id(data["view-id"]);
+        if (view && view->get_data<pin_view_data>())
+        {
+            auto pvd = view->get_data<pin_view_data>();
+            view->role = pvd->role;
+            wf::scene::readd_front(view->get_output()->wset()->get_node(), view->get_root_node());
+            if (auto toplevel = toplevel_cast(view))
+            {
+                auto output = view->get_output();
+                auto og     = output->get_relative_geometry();
+                auto cws    = output->wset()->get_view_main_workspace(toplevel);
+                auto vg     = toplevel->get_geometry();
+                toplevel->move(vg.x + (pvd->workspace.x - cws.x) * og.width,
+                    vg.y + (pvd->workspace.y - cws.y) * og.height);
+                toplevel->set_geometry(pvd->geometry);
+            }
+
+            view->release_data<pin_view_data>();
+        } else
+        {
+            LOGE("Failed to find view with given id. Perhaps it is not pinned.");
+            return wf::ipc::json_error("Failed to find view with given id. Perhaps it is not pinned.");
+        }
+
+        return wf::ipc::json_ok();
+    };
+
+    wf::signal::connection_t<wf::workspace_changed_signal> on_workspace_changed =
+        [=] (wf::workspace_changed_signal *ev)
+    {
+        auto nws    = ev->new_viewport;
+        auto output = ev->output;
+        auto og     = output->get_relative_geometry();
+        for (auto & view : wf::get_core().get_all_views())
+        {
+            auto pvd = view->get_data<pin_view_data>();
+            if (!pvd || (view->role != wf::VIEW_ROLE_DESKTOP_ENVIRONMENT))
+            {
+                continue;
+            }
+
+            if (auto toplevel = toplevel_cast(view))
+            {
+                auto cws = output->wset()->get_view_main_workspace(toplevel);
+                auto vg  = toplevel->get_geometry();
+                toplevel->move(vg.x + (nws.x - cws.x) * og.width, vg.y + (nws.y - cws.y) * og.height);
+            }
+        }
+    };
+
+    void fini() override
+    {
+        for (auto & view : wf::get_core().get_all_views())
+        {
+            if (view->get_data<pin_view_data>())
+            {
+                view->release_data<pin_view_data>();
+            }
+        }
+
+        ipc_repo->unregister_method("pin-view/pin");
+        ipc_repo->unregister_method("pin-view/unpin");
+        on_workspace_changed.disconnect();
+    }
+};
+}
+}
+
+DECLARE_WAYFIRE_PLUGIN(wf::pin_view::wayfire_pin_view);