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authorIsaac Freund <ifreund@ifreund.xyz>2020-05-02 23:11:56 +0200
committerIsaac Freund <ifreund@ifreund.xyz>2020-05-02 23:11:56 +0200
commite199bcba43174403a578f7a1e92e0a95076495c8 (patch)
treeff84537bbf3ba93ad40ec465b41fa0125f78a9f4 /src/seat.zig
parent8a9c2182eabadf6e50532b2b9a1044859587af82 (diff)
downloadriver-e199bcba43174403a578f7a1e92e0a95076495c8.tar.gz
river-e199bcba43174403a578f7a1e92e0a95076495c8.tar.xz
Rename files contatining top level structs
This respects the naming convention of snake_case namespaces and TitleCase types.
Diffstat (limited to 'src/seat.zig')
-rw-r--r--src/seat.zig299
1 files changed, 0 insertions, 299 deletions
diff --git a/src/seat.zig b/src/seat.zig
deleted file mode 100644
index b69c1e9..0000000
--- a/src/seat.zig
+++ /dev/null
@@ -1,299 +0,0 @@
-// 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 Self = @This();
-
-const std = @import("std");
-
-const c = @import("c.zig");
-
-const Cursor = @import("cursor.zig");
-const InputManager = @import("input_manager.zig");
-const Keyboard = @import("keyboard.zig");
-const LayerSurface = @import("layer_surface.zig");
-const Output = @import("output.zig");
-const View = @import("view.zig");
-const ViewStack = @import("view_stack.zig").ViewStack;
-
-const FocusTarget = union(enum) {
- view: *View,
- layer: *LayerSurface,
- none: void,
-};
-
-input_manager: *InputManager,
-wlr_seat: *c.wlr_seat,
-
-/// Multiple mice are handled by the same Cursor
-cursor: Cursor,
-
-/// Mulitple keyboards are handled separately
-keyboards: std.TailQueue(Keyboard),
-
-/// Currently focused output, may be the noop output if no
-focused_output: *Output,
-
-/// Currently focused view if any
-focused_view: ?*View,
-
-/// Stack of views in most recently focused order
-/// If there is a currently focused view, it is on top.
-focus_stack: ViewStack(*View),
-
-/// Currently focused layer, if any. While this is non-null, no views may
-/// recieve focus.
-focused_layer: ?*LayerSurface,
-
-listen_request_set_selection: c.wl_listener,
-
-pub fn init(self: *Self, input_manager: *InputManager, name: []const u8) !void {
- self.input_manager = input_manager;
-
- // This will be automatically destroyed when the display is destroyed
- self.wlr_seat = c.wlr_seat_create(input_manager.server.wl_display, name.ptr) orelse
- return error.CantCreateWlrSeat;
-
- try self.cursor.init(self);
- errdefer self.cursor.destroy();
-
- self.keyboards = std.TailQueue(Keyboard).init();
-
- self.focused_output = &self.input_manager.server.root.noop_output;
-
- self.focused_view = null;
-
- self.focus_stack.init();
-
- self.focused_layer = null;
-
- self.listen_request_set_selection.notify = handleRequestSetSelection;
- c.wl_signal_add(&self.wlr_seat.events.request_set_selection, &self.listen_request_set_selection);
-}
-
-pub fn deinit(self: *Self) void {
- self.cursor.deinit();
-
- while (self.keyboards.pop()) |node| {
- self.input_manager.server.allocator.destroy(node);
- }
-
- while (self.focus_stack.first) |node| {
- self.focus_stack.remove(node);
- self.input_manager.server.allocator.destroy(node);
- }
-}
-
-/// Set the current focus. If a visible view is passed it will be focused.
-/// If null is passed, the first visible view in the focus stack will be focused.
-pub fn focus(self: *Self, _view: ?*View) void {
- var view = _view;
-
- // While a layer surface is focused, views may not recieve focus
- if (self.focused_layer != null) {
- std.debug.assert(self.focused_view == null);
- return;
- }
-
- // If view is null or not currently visible
- if (if (view) |v|
- v.output != self.focused_output or
- v.current_tags & self.focused_output.current_focused_tags == 0
- else
- true) {
- // Set view to the first currently visible view on in the focus stack if any
- var it = ViewStack(*View).iterator(
- self.focus_stack.first,
- self.focused_output.current_focused_tags,
- );
- view = while (it.next()) |node| {
- if (node.view.output == self.focused_output) {
- break node.view;
- }
- } else null;
- }
-
- if (view) |view_to_focus| {
- // Find or allocate a new node in the focus stack for the target view
- var it = self.focus_stack.first;
- while (it) |node| : (it = node.next) {
- // If the view is found, move it to the top of the stack
- if (node.view == view_to_focus) {
- const new_focus_node = self.focus_stack.remove(node);
- self.focus_stack.push(node);
- break;
- }
- } else {
- // The view is not in the stack, so allocate a new node and prepend it
- const new_focus_node = self.input_manager.server.allocator.create(
- ViewStack(*View).Node,
- ) catch unreachable;
- new_focus_node.view = view_to_focus;
- self.focus_stack.push(new_focus_node);
- }
-
- // Focus the target view
- self.setFocusRaw(.{ .view = view_to_focus });
- } else {
- // Otherwise clear the focus
- self.setFocusRaw(.{ .none = {} });
- }
-}
-
-/// Switch focus to the target, handling unfocus and input inhibition
-/// properly. This should only be called directly if dealing with layers.
-pub fn setFocusRaw(self: *Self, focus_target: FocusTarget) void {
- // If the target is already focused, do nothing
- if (switch (focus_target) {
- .view => |target_view| target_view == self.focused_view,
- .layer => |target_layer| target_layer == self.focused_layer,
- .none => false,
- }) {
- return;
- }
-
- // Obtain the target wlr_surface
- const target_wlr_surface = switch (focus_target) {
- .view => |target_view| target_view.wlr_surface.?,
- .layer => |target_layer| target_layer.wlr_layer_surface.surface.?,
- .none => null,
- };
-
- // If input is not allowed on the target surface (e.g. due to an active
- // input inhibitor) do not set focus. If there is no target surface we
- // still clear the focus.
- if (if (target_wlr_surface) |wlr_surface|
- self.input_manager.inputAllowed(wlr_surface)
- else
- true) {
- // First clear the current focus
- if (self.focused_view) |current_focus| {
- std.debug.assert(self.focused_layer == null);
- current_focus.setFocused(false);
- self.focused_view = null;
- }
- if (self.focused_layer) |current_focus| {
- std.debug.assert(self.focused_view == null);
- self.focused_layer = null;
- }
- c.wlr_seat_keyboard_clear_focus(self.wlr_seat);
-
- // Set the new focus
- switch (focus_target) {
- .view => |target_view| {
- std.debug.assert(self.focused_output == target_view.output);
- target_view.setFocused(true);
- self.focused_view = target_view;
- },
- .layer => |target_layer| blk: {
- std.debug.assert(self.focused_output == target_layer.output);
- self.focused_layer = target_layer;
- },
- .none => {},
- }
-
- // Tell wlroots to send the new keyboard focus if we have a target
- if (target_wlr_surface) |wlr_surface| {
- const keyboard: *c.wlr_keyboard = c.wlr_seat_get_keyboard(self.wlr_seat);
- c.wlr_seat_keyboard_notify_enter(
- self.wlr_seat,
- wlr_surface,
- &keyboard.keycodes,
- keyboard.num_keycodes,
- &keyboard.modifiers,
- );
- }
- }
-}
-
-/// Handle the unmapping of a view, removing it from the focus stack and
-/// setting the focus if needed.
-pub fn handleViewUnmap(self: *Self, view: *View) void {
- // Remove the node from the focus stack and destroy it.
- var it = self.focus_stack.first;
- while (it) |node| : (it = node.next) {
- if (node.view == view) {
- self.focus_stack.remove(node);
- self.input_manager.server.allocator.destroy(node);
- break;
- }
- }
-
- // If the unmapped view is focused, choose a new focus
- if (self.focused_view) |current_focus| {
- if (current_focus == view) {
- self.focus(null);
- }
- }
-}
-
-/// Handle any user-defined keybinding for the passed keysym and modifiers
-/// Returns true if the key was handled
-pub fn handleKeybinding(self: *Self, keysym: c.xkb_keysym_t, modifiers: u32) bool {
- for (self.input_manager.server.config.keybinds.items) |keybind| {
- if (modifiers == keybind.modifiers and keysym == keybind.keysym) {
- // Execute the bound command
- keybind.command(self, keybind.arg);
- return true;
- }
- }
- return false;
-}
-
-/// Add a newly created input device to the seat and update the reported
-/// capabilities.
-pub fn addDevice(self: *Self, device: *c.wlr_input_device) !void {
- switch (device.type) {
- .WLR_INPUT_DEVICE_KEYBOARD => self.addKeyboard(device) catch unreachable,
- .WLR_INPUT_DEVICE_POINTER => self.addPointer(device),
- else => {},
- }
-
- // We need to let the wlr_seat know what our capabilities are, which is
- // communiciated to the client. We always have a cursor, even if
- // there are no pointer devices, so we always include that capability.
- var caps = @intCast(u32, c.WL_SEAT_CAPABILITY_POINTER);
- // if list not empty
- if (self.keyboards.len > 0) {
- caps |= @intCast(u32, c.WL_SEAT_CAPABILITY_KEYBOARD);
- }
- c.wlr_seat_set_capabilities(self.wlr_seat, caps);
-}
-
-fn addKeyboard(self: *Self, device: *c.wlr_input_device) !void {
- c.wlr_seat_set_keyboard(self.wlr_seat, device);
-
- const node = try self.keyboards.allocateNode(self.input_manager.server.allocator);
- try node.data.init(self, device);
- self.keyboards.append(node);
-}
-
-fn addPointer(self: Self, device: *c.struct_wlr_input_device) void {
- // We don't do anything special with pointers. All of our pointer handling
- // is proxied through wlr_cursor. On another compositor, you might take this
- // opportunity to do libinput configuration on the device to set
- // acceleration, etc.
- c.wlr_cursor_attach_input_device(self.cursor.wlr_cursor, device);
-}
-
-fn handleRequestSetSelection(listener: ?*c.wl_listener, data: ?*c_void) callconv(.C) void {
- const self = @fieldParentPtr(Self, "listen_request_set_selection", listener.?);
- const event = @ptrCast(
- *c.wlr_seat_request_set_selection_event,
- @alignCast(@alignOf(*c.wlr_seat_request_set_selection_event), data),
- );
- c.wlr_seat_set_selection(self.wlr_seat, event.source, event.serial);
-}