Split river and riverctl directories

river/command/close.zig

@@ -0,0 +1,37 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Close the focused view, if any.
+pub fn close(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (seat.focused_view) |view| {
+        // Note: we don't call arrange() here as it will be called
+        // automatically when the view is unmapped.
+        view.close();
+    }
+}

river/command/declare_mode.zig

@@ -0,0 +1,51 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Mapping = @import("../Mapping.zig");
+const Seat = @import("../Seat.zig");
+
+/// Declare a new keymap mode
+pub fn declareMode(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const config = &seat.input_manager.server.config;
+    const new_mode_name = args[1];
+
+    if (config.mode_to_id.get(new_mode_name) != null) {
+        failure_message.* = try std.fmt.allocPrint(
+            allocator,
+            "mode '{}' already exists and cannot be re-declared",
+            .{new_mode_name},
+        );
+        return Error.CommandFailed;
+    }
+
+    try config.mode_to_id.putNoClobber(new_mode_name, config.modes.items.len);
+    errdefer _ = config.mode_to_id.remove(new_mode_name);
+    try config.modes.append(std.ArrayList(Mapping).init(allocator));
+}

river/command/enter_mode.zig

@@ -0,0 +1,43 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Switch to the given mode
+pub fn enterMode(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const config = seat.input_manager.server.config;
+    const target_mode = args[1];
+    seat.mode_id = config.mode_to_id.getValue(target_mode) orelse {
+        failure_message.* = try std.fmt.allocPrint(
+            allocator,
+            "cannot enter non-existant mode '{}'",
+            .{target_mode},
+        );
+        return Error.CommandFailed;
+    };
+}

river/command/exit.zig

@@ -0,0 +1,34 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Exit the compositor, terminating the wayland session.
+pub fn exit(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len > 1) return Error.TooManyArguments;
+    c.wl_display_terminate(seat.input_manager.server.wl_display);
+}

river/command/focus.zig

@@ -0,0 +1,67 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Direction = @import("../command.zig").Direction;
+const Seat = @import("../Seat.zig");
+const View = @import("../View.zig");
+const ViewStack = @import("../view_stack.zig").ViewStack;
+
+/// Focus either the next or the previous visible view, depending on the enum
+/// passed. Does nothing if there are 1 or 0 views in the stack.
+pub fn focus(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const direction = try Direction.parse(args[1]);
+    const output = seat.focused_output;
+
+    if (seat.focused_view) |current_focus| {
+        // If there is a currently focused view, focus the next visible view in the stack.
+        const focused_node = @fieldParentPtr(ViewStack(View).Node, "view", current_focus);
+        var it = switch (direction) {
+            .Next => ViewStack(View).iterator(focused_node, output.current_focused_tags),
+            .Prev => ViewStack(View).reverseIterator(focused_node, output.current_focused_tags),
+        };
+
+        // Skip past the focused node
+        _ = it.next();
+        // Focus the next visible node if there is one
+        if (it.next()) |node| {
+            seat.focus(&node.view);
+            return;
+        }
+    }
+
+    // There is either no currently focused view or the last visible view in the
+    // stack is focused and we need to wrap.
+    var it = switch (direction) {
+        .Next => ViewStack(View).iterator(output.views.first, output.current_focused_tags),
+        .Prev => ViewStack(View).reverseIterator(output.views.last, output.current_focused_tags),
+    };
+
+    seat.focus(if (it.next()) |node| &node.view else null);
+}

river/command/focus_all_tags.zig

@@ -0,0 +1,32 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Set focus to all tags
+pub fn focusAllTags(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    seat.focused_output.pending_focused_tags = 0xFFFFFFFF;
+    seat.input_manager.server.root.arrange();
+}

river/command/focus_output.zig

@@ -0,0 +1,54 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Direction = @import("../command.zig").Direction;
+const Output = @import("../Output.zig");
+const Seat = @import("../Seat.zig");
+
+/// Focus either the next or the previous output, depending on the bool passed.
+/// Does nothing if there is only one output.
+pub fn focusOutput(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const direction = try Direction.parse(args[1]);
+    const root = &seat.input_manager.server.root;
+    // If the noop output is focused, there are no other outputs to switch to
+    if (seat.focused_output == &root.noop_output) {
+        std.debug.assert(root.outputs.len == 0);
+        return;
+    }
+
+    // Focus the next/prev output in the list if there is one, else wrap
+    const focused_node = @fieldParentPtr(std.TailQueue(Output).Node, "data", seat.focused_output);
+    seat.focused_output = switch (direction) {
+        .Next => if (focused_node.next) |node| &node.data else &root.outputs.first.?.data,
+        .Prev => if (focused_node.prev) |node| &node.data else &root.outputs.last.?.data,
+    };
+
+    seat.focus(null);
+}

river/command/focus_tag.zig

@@ -0,0 +1,37 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Switch focus to the passed tag.
+pub fn focusTag(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const tag = try std.fmt.parseInt(u32, args[1], 10);
+    const tags = @as(u32, 1) << @intCast(u5, tag - 1);
+    seat.focused_output.pending_focused_tags = tags;
+    seat.input_manager.server.root.arrange();
+}

river/command/layout.zig

@@ -0,0 +1,37 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Leon Henrik Plickat
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+pub fn layout(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    seat.focused_output.layout = seat.focused_output.getLayoutByName(args[1]);
+    seat.focused_output.arrangeViews();
+    seat.input_manager.server.root.startTransaction();
+}

river/command/map.zig

@@ -0,0 +1,110 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Mapping = @import("../Mapping.zig");
+const Seat = @import("../Seat.zig");
+
+const modifier_names = [_]struct {
+    name: []const u8,
+    modifier: u32,
+}{
+    .{ .name = "Shift", .modifier = c.WLR_MODIFIER_SHIFT },
+    .{ .name = "Lock", .modifier = c.WLR_MODIFIER_CAPS },
+    .{ .name = "Control", .modifier = c.WLR_MODIFIER_CTRL },
+    .{ .name = "Mod1", .modifier = c.WLR_MODIFIER_ALT },
+    .{ .name = "Mod2", .modifier = c.WLR_MODIFIER_MOD2 },
+    .{ .name = "Mod3", .modifier = c.WLR_MODIFIER_MOD3 },
+    .{ .name = "Mod4", .modifier = c.WLR_MODIFIER_LOGO },
+    .{ .name = "Mod5", .modifier = c.WLR_MODIFIER_MOD5 },
+};
+
+/// Create a new mapping for a given mode
+///
+/// Example:
+/// map normal Mod4|Shift Return spawn alacritty
+pub fn map(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 4) return Error.NotEnoughArguments;
+
+    // Parse the mode
+    const config = seat.input_manager.server.config;
+    const target_mode = args[1];
+    const mode_id = config.mode_to_id.getValue(target_mode) orelse {
+        failure_message.* = try std.fmt.allocPrint(
+            allocator,
+            "cannot add mapping to non-existant mode '{}p'",
+            .{target_mode},
+        );
+        return Error.CommandFailed;
+    };
+
+    // Parse the modifiers
+    var it = std.mem.split(args[2], "|");
+    var modifiers: u32 = 0;
+    while (it.next()) |mod_name| {
+        for (modifier_names) |def| {
+            if (std.mem.eql(u8, def.name, mod_name)) {
+                modifiers |= def.modifier;
+                break;
+            }
+        } else {
+            failure_message.* = try std.fmt.allocPrint(
+                allocator,
+                "invalid modifier '{}'",
+                .{mod_name},
+            );
+            return Error.CommandFailed;
+        }
+    }
+
+    // Parse the keysym
+    const keysym_name = try std.cstr.addNullByte(allocator, args[3]);
+    defer allocator.free(keysym_name);
+    const keysym = c.xkb_keysym_from_name(keysym_name, .XKB_KEYSYM_CASE_INSENSITIVE);
+    if (keysym == c.XKB_KEY_NoSymbol) {
+        failure_message.* = try std.fmt.allocPrint(
+            allocator,
+            "invalid keysym '{}'",
+            .{args[3]},
+        );
+        return Error.CommandFailed;
+    }
+
+    // Check if the mapping already exists
+    const mode_mappings = &config.modes.items[mode_id];
+    for (mode_mappings.items) |existant_mapping| {
+        if (existant_mapping.modifiers == modifiers and existant_mapping.keysym == keysym) {
+            failure_message.* = try std.fmt.allocPrint(
+                allocator,
+                "a mapping for modifiers '{}' and keysym '{}' already exists",
+                .{ args[2], args[3] },
+            );
+            return Error.CommandFailed;
+        }
+    }
+
+    try mode_mappings.append(try Mapping.init(allocator, keysym, modifiers, args[4..]));
+}

river/command/mod_master_count.zig

@@ -0,0 +1,42 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Modify the number of master views
+pub fn modMasterCount(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const delta = try std.fmt.parseInt(i32, args[1], 10);
+    const output = seat.focused_output;
+    output.master_count = @intCast(
+        u32,
+        std.math.max(0, @intCast(i32, output.master_count) + delta),
+    );
+    seat.input_manager.server.root.arrange();
+}

river/command/mod_master_factor.zig

@@ -0,0 +1,45 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Modify the percent of the width of the screen that the master views occupy.
+pub fn modMasterFactor(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const delta = try std.fmt.parseFloat(f64, args[1]);
+    const output = seat.focused_output;
+    const new_master_factor = std.math.min(
+        std.math.max(output.master_factor + delta, 0.05),
+        0.95,
+    );
+    if (new_master_factor != output.master_factor) {
+        output.master_factor = new_master_factor;
+        seat.input_manager.server.root.arrange();
+    }
+}

river/command/send_to_output.zig

@@ -0,0 +1,62 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Direction = @import("../command.zig").Direction;
+const Output = @import("../Output.zig");
+const Seat = @import("../Seat.zig");
+
+/// Send the focused view to the the next or the previous output, depending on
+/// the bool passed. Does nothing if there is only one output.
+pub fn sendToOutput(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const direction = try Direction.parse(args[1]);
+    const root = &seat.input_manager.server.root;
+
+    if (seat.focused_view) |view| {
+        // If the noop output is focused, there is nowhere to send the view
+        if (view.output == &root.noop_output) {
+            std.debug.assert(root.outputs.len == 0);
+            return;
+        }
+
+        // Send to the next/preg output in the list if there is one, else wrap
+        const current_node = @fieldParentPtr(std.TailQueue(Output).Node, "data", view.output);
+        const destination_output = switch (direction) {
+            .Next => if (current_node.next) |node| &node.data else &root.outputs.first.?.data,
+            .Prev => if (current_node.prev) |node| &node.data else &root.outputs.last.?.data,
+        };
+
+        // Move the view to the target output
+        view.sendToOutput(destination_output);
+
+        // Handle the change and focus whatever's next in the focus stack
+        root.arrange();
+        seat.focus(null);
+    }
+}

river/command/spawn.zig

@@ -0,0 +1,47 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Spawn a program.
+pub fn spawn(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+
+    const cmd = try std.mem.join(allocator, " ", args[1..]);
+    defer allocator.free(cmd);
+
+    const child_args = [_][]const u8{ "/bin/sh", "-c", cmd };
+    const child = try std.ChildProcess.init(&child_args, allocator);
+    defer child.deinit();
+
+    std.ChildProcess.spawn(child) catch |err| {
+        failure_message.* = try std.fmt.allocPrint(
+            allocator,
+            "failed to spawn {}: {}.",
+            .{ cmd, err },
+        );
+        return Error.CommandFailed;
+    };
+}

river/command/tag_view.zig

@@ -0,0 +1,43 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Set the tag of the focused view.
+pub fn tagView(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const tag = try std.fmt.parseInt(u32, args[1], 10);
+    const tags = @as(u32, 1) << @intCast(u5, tag - 1);
+    if (seat.focused_view) |view| {
+        if (view.current_tags != tags) {
+            view.pending_tags = tags;
+            seat.input_manager.server.root.arrange();
+        }
+    }
+}

river/command/tag_view_all_tags.zig

@@ -0,0 +1,38 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Tag the focused view with all tags.
+pub fn tagViewAllTags(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (seat.focused_view) |view| {
+        if (view.current_tags != 0xFFFFFFFF) {
+            view.pending_tags = 0xFFFFFFFF;
+            seat.input_manager.server.root.arrange();
+        }
+    }
+}

river/command/toggle_float.zig

@@ -0,0 +1,38 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Make the focused view float or stop floating, depending on its current
+/// state.
+pub fn toggleFloat(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len > 1) return Error.TooManyArguments;
+    if (seat.focused_view) |view| {
+        view.setFloating(!view.floating);
+        view.output.root.arrange();
+    }
+}

river/command/toggle_tag_focus.zig

@@ -0,0 +1,43 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Toggle focus of the passsed tags.
+pub fn toggleTagFocus(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const tag = try std.fmt.parseInt(u32, args[1], 10);
+    const tags = @as(u32, 1) << @intCast(u5, tag - 1);
+    const output = seat.focused_output;
+    const new_focused_tags = output.current_focused_tags ^ tags;
+    if (new_focused_tags != 0) {
+        output.pending_focused_tags = new_focused_tags;
+        seat.input_manager.server.root.arrange();
+    }
+}

river/command/toggle_view_tag.zig

@@ -0,0 +1,44 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+
+/// Toggle the passed tag of the focused view
+pub fn toggleViewTag(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    const tag = try std.fmt.parseInt(u32, args[1], 10);
+    const tags = @as(u32, 1) << @intCast(u5, tag - 1);
+    if (seat.focused_view) |view| {
+        const new_tags = view.current_tags ^ tags;
+        if (new_tags != 0) {
+            view.pending_tags = new_tags;
+            seat.input_manager.server.root.arrange();
+        }
+    }
+}

river/command/zoom.zig

@@ -0,0 +1,54 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Error = @import("../command.zig").Error;
+const Seat = @import("../Seat.zig");
+const View = @import("../View.zig");
+const ViewStack = @import("../view_stack.zig").ViewStack;
+
+/// Bump the focused view to the top of the stack. If the view on the top of
+/// the stack is focused, bump the second view to the top.
+pub fn zoom(
+    allocator: *std.mem.Allocator,
+    seat: *Seat,
+    args: []const []const u8,
+    failure_message: *[]const u8,
+) Error!void {
+    if (args.len > 1) return Error.TooManyArguments;
+
+    if (seat.focused_view) |current_focus| {
+        const output = seat.focused_output;
+        const focused_node = @fieldParentPtr(ViewStack(View).Node, "view", current_focus);
+
+        var it = ViewStack(View).iterator(output.views.first, output.current_focused_tags);
+        const zoom_node = if (focused_node == it.next())
+            if (it.next()) |second| second else null
+        else
+            focused_node;
+
+        if (zoom_node) |to_bump| {
+            output.views.remove(to_bump);
+            output.views.push(to_bump);
+            seat.input_manager.server.root.arrange();
+            seat.focus(&to_bump.view);
+        }
+    }
+}