Add background blur

data/application.css

@@ -38,6 +38,7 @@ window,
 
 .notification .draw-area {
     margin: 16px;
+    background: alpha(@bg_color, 0.8);
 }
 
 .notification:not(.confirmation) .draw-area image {

meson.build

@@ -16,6 +16,11 @@ css_gresource = gnome.compile_resources(
     source_dir: 'data'
 )
 
+subdir('protocol')
+subdir('data')
+subdir('demo')
+subdir('po')
+
 executable(
     meson.project_name(),
     'src/AbstractBubble.vala',
@@ -28,20 +33,20 @@ executable(
     'src/Widgets/MaskedImage.vala',
     css_gresource,
     dependencies: [
-        dependency ('libcanberra'),
-        dependency ('libcanberra-gtk3'),
-        dependency ('glib-2.0'),
-        dependency ('gobject-2.0'),
-        dependency ('gio-2.0'),
-        dependency ('granite', version: '>=5.4.0'),
-        dependency ('gtk+-3.0'),
-        dependency ('libhandy-1')
+        dependency('libcanberra'),
+        dependency('libcanberra-gtk3'),
+        dependency('glib-2.0'),
+        dependency('gobject-2.0'),
+        dependency('gio-2.0'),
+        dependency('granite', version: '>=5.4.0'),
+        dependency('gdk-wayland-3.0'),
+        dependency('gdk-x11-3.0'),
+        dependency('gtk+-3.0'),
+        dependency('libhandy-1'),
+        dependency('wayland-client'),
+        pantheon_desktop_shell_dep
     ],
     install : true
 )
 
-subdir('data')
-subdir('demo')
-subdir('po')
-
 gnome.post_install(glib_compile_schemas: true)

protocol/meson.build

@@ -0,0 +1,32 @@
+dep_scanner = dependency('wayland-scanner', native: true)
+prog_scanner = find_program(dep_scanner.get_variable(pkgconfig: 'wayland_scanner'))
+
+protocol_file = files('pantheon-desktop-shell-v1.xml')
+
+pantheon_desktop_shell_sources = []
+pantheon_desktop_shell_sources += custom_target(
+	'pantheon-desktop-shell-client-protocol.h',
+	command: [ prog_scanner, 'client-header', '@INPUT@', '@OUTPUT@' ],
+	input: protocol_file,
+	output: 'pantheon-desktop-shell-client-protocol.h',
+)
+
+output_type = 'private-code'
+if dep_scanner.version().version_compare('< 1.14.91')
+    output_type = 'code'
+endif
+pantheon_desktop_shell_sources += custom_target(
+	'pantheon-desktop-shell-protocol.c',
+	command: [ prog_scanner, output_type, '@INPUT@', '@OUTPUT@' ],
+	input: protocol_file,
+	output: 'pantheon-desktop-shell-protocol.c',
+)
+
+pantheon_desktop_shell_dep = declare_dependency(
+    dependencies: [
+        meson.get_compiler('vala').find_library('pantheon-desktop-shell', dirs: meson.current_source_dir()),
+        dependency('wayland-client'),
+    ],
+    include_directories: include_directories('.'),
+    sources: pantheon_desktop_shell_sources
+)

protocol/pantheon-desktop-shell-v1.xml

@@ -0,0 +1,155 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="pantheon_shell_v1">
+  <copyright><![CDATA[
+    SPDX-FileCopyrightText: 2023 Corentin Noël <tintou@noel.tf>
+
+    SPDX-License-Identifier: LGPL-2.1-or-later
+  ]]></copyright>
+
+  <interface name="io_elementary_pantheon_shell_v1" version="1">
+    <description summary="create panel, widget and get more control">
+      This interface is used by the Pantheon Wayland shell to communicate with
+      the compositor.
+    </description>
+
+    <request name="get_panel">
+      <description summary="create a panel surface from a surface">
+        Create a panel surface from an existing surface.
+      </description>
+      <arg name="output" type="new_id" interface="io_elementary_pantheon_panel_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"/>
+    </request>
+
+    <request name="get_widget">
+      <description summary="create a widget surface from a surface">
+        Create a desktop widget surface from an existing surface.
+      </description>
+      <arg name="output" type="new_id" interface="io_elementary_pantheon_widget_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"/>
+    </request>
+
+    <request name="get_extended_behavior">
+      <description summary="create a desktop-specific surface from a surface">
+        Create a desktop-specific surface from an existing surface.
+      </description>
+      <arg name="output" type="new_id" interface="io_elementary_pantheon_extended_behavior_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"/>
+    </request>
+  </interface>
+
+  <interface name="io_elementary_pantheon_panel_v1" version="1">
+    <request name="destroy" type="destructor"/>
+
+    <enum name="anchor">
+      <description summary="anchor">
+        The anchor is a placement hint to the compositor.
+      </description>
+      <entry name="top" value="0" summary="the top edge of the screen"/>
+      <entry name="bottom" value="1" summary="the bottom edge of the screen"/>
+      <entry name="left" value="2" summary="the left edge of the screen"/>
+      <entry name="right" value="3" summary="the right edge of the screen"/>
+    </enum>
+
+    <enum name="hide_mode">
+      <description summary="hide mode">
+        How the shell should handle the window.
+      </description>
+      <entry name="never" value="0" summary="make the surface exclusive"/>
+      <entry name="maximized_focus_window" value="1" summary="hide when the focused window is maximized"/>
+      <entry name="overlapping_focus_window" value="2" summary="hide when the focused window overlaps the surface"/>
+      <entry name="overlapping_window" value="3" summary="hide when any window overlaps the surface"/>
+      <entry name="always" value="4" summary="always hide and only show if requested by the user"/>
+    </enum>
+
+    <request name="set_anchor">
+      <description summary="set panel edge anchor">
+        Tell the shell which side of the screen the panel is
+        located. This is so that new windows do not overlap the panel
+        and maximized windows maximize properly.
+      </description>
+
+      <arg name="anchor" type="uint" enum="anchor" summary="anchor"/>
+    </request>
+
+    <request name="focus">
+      <description summary="request keyboard focus">
+        Request keyboard focus, taking it away from any other window.
+        Keyboard focus must always be manually be requested and is
+        - in contrast to normal windows - never automatically granted
+        by the compositor.
+      </description>
+    </request>
+
+    <request name="set_size">
+      <description summary="set size">
+        The given size is only used for exclusive zones and
+        collision tracking for auto hide. By default and if set
+        to -1 the size of the surface is used.
+      </description>
+
+      <arg name="width" type="int"/>
+      <arg name="height" type="int"/>
+    </request>
+
+    <request name="set_hide_mode">
+      <description summary="set panel hide mode">
+        Tell the shell when to hide the panel.
+      </description>
+
+      <arg name="hide_mode" type="uint" enum="hide_mode" summary="hide mode"/>
+    </request>
+
+    <request name="request_visible_in_multitasking_view">
+      <description summary="request visible in multitasking view">
+        Tell the shell that the panel would like to be visible in the multitasking view.
+      </description>
+    </request>
+
+    <request name="add_blur">
+      <description summary="add blur">
+        Tell the window manager to add background blur.
+      </description>
+
+      <arg name="left" type="uint"/>
+      <arg name="right" type="uint"/>
+      <arg name="top" type="uint"/>
+      <arg name="bottom" type="uint"/>
+      <arg name="clip_radius" type="uint"/>
+    </request>
+
+    <request name="remove_blur">
+      <description summary="remove blur">
+        Tell the window manager to remove blur that was set in set_blur_region.
+      </description>
+    </request>
+  </interface>
+
+  <interface name="io_elementary_pantheon_widget_v1" version="1">
+    <request name="destroy" type="destructor"/>
+  </interface>
+
+  <interface name="io_elementary_pantheon_extended_behavior_v1" version="1">
+    <request name="destroy" type="destructor"/>
+    <request name="set_keep_above">
+      <description summary="set keep above">
+        Tell the shell to keep the surface above on all workspaces
+      </description>
+    </request>
+
+    <request name="make_centered">
+      <description summary="requests to keep the surface centered">
+        Request to keep the surface centered. This will cause keyboard focus
+        to not be granted automatically but having to be requested via focus.
+      </description>
+    </request>
+
+    <request name="focus">
+      <description summary="request keyboard focus">
+        Request keyboard focus, taking it away from any other window.
+        Keyboard focus must always be manually be requested and is
+        - in contrast to normal windows - never automatically granted
+        by the compositor.
+      </description>
+    </request>
+  </interface>
+</protocol>

protocol/pantheon-desktop-shell.deps

@@ -0,0 +1 @@
+wayland-client

protocol/pantheon-desktop-shell.vapi

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2023 elementary, Inc. <https://elementary.io>
+ * Copyright 2023 Corentin Noël <tintou@noel.tf>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+namespace Pantheon.Desktop {
+    [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "struct io_elementary_pantheon_shell_v1", cprefix = "io_elementary_pantheon_shell_v1_")]
+    public class Shell : Wl.Proxy {
+        [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "io_elementary_pantheon_shell_v1_interface")]
+        public static Wl.Interface iface;
+        public void set_user_data (void* user_data);
+        public void* get_user_data ();
+        public uint32 get_version ();
+        public void destroy ();
+        public Pantheon.Desktop.Panel get_panel (Wl.Surface surface);
+        public Pantheon.Desktop.Widget get_widget (Wl.Surface surface);
+        public Pantheon.Desktop.ExtendedBehavior get_extended_behavior (Wl.Surface surface);
+
+    }
+    [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "enum io_elementary_pantheon_panel_v1_anchor", cprefix="IO_ELEMENTARY_PANTHEON_PANEL_V1_ANCHOR_", has_type_id = false)]
+    public enum Anchor {
+        TOP,
+        BOTTOM,
+        LEFT,
+        RIGHT,
+    }
+
+    [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "enum io_elementary_pantheon_panel_v1_hide_mode", cprefix="IO_ELEMENTARY_PANTHEON_PANEL_V1_HIDE_MODE_", has_type_id = false)]
+    public enum HideMode {
+        NEVER,
+        MAXIMIZED_FOCUS_WINDOW,
+        OVERLAPPING_FOCUS_WINDOW,
+        OVERLAPPING_WINDOW,
+        ALWAYS
+    }
+
+    [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "struct io_elementary_pantheon_panel_v1", cprefix = "io_elementary_pantheon_panel_v1_")]
+    public class Panel : Wl.Proxy {
+        [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "io_elementary_pantheon_panel_v1_interface")]
+        public static Wl.Interface iface;
+        public void set_user_data (void* user_data);
+        public void* get_user_data ();
+        public uint32 get_version ();
+        public void destroy ();
+        public void set_anchor (Pantheon.Desktop.Anchor anchor);
+        public void focus ();
+        public void set_size (int width, int height);
+        public void set_hide_mode (Pantheon.Desktop.HideMode hide_mode);
+        public void request_visible_in_multitasking_view ();
+        public void add_blur (uint left, uint right, uint top, uint bottom, uint clip_radius);
+        public void remove_blur ();
+    }
+
+    [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "struct io_elementary_pantheon_widget_v1", cprefix = "io_elementary_pantheon_widget_v1_")]
+    public class Widget : Wl.Proxy {
+        [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "io_elementary_pantheon_widget_v1_interface")]
+        public static Wl.Interface iface;
+        public void set_user_data (void* user_data);
+        public void* get_user_data ();
+        public uint32 get_version ();
+        public void destroy ();
+    }
+
+    [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "struct io_elementary_pantheon_extended_behavior_v1", cprefix = "io_elementary_pantheon_extended_behavior_v1_")]
+    public class ExtendedBehavior : Wl.Proxy {
+        [CCode (cheader_filename = "pantheon-desktop-shell-client-protocol.h", cname = "io_elementary_pantheon_extended_behavior_v1_interface")]
+        public static Wl.Interface iface;
+        public void set_user_data (void* user_data);
+        public void* get_user_data ();
+        public uint32 get_version ();
+        public void destroy ();
+        public void set_keep_above ();
+    }
+}