124 lines
3.8 KiB
Zig
124 lines
3.8 KiB
Zig
const tp = @import("thespian");
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const key = @import("renderer").input.key;
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const mod = @import("renderer").input.modifier;
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const event_type = @import("renderer").input.event_type;
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const ucs32_to_utf8 = @import("renderer").ucs32_to_utf8;
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const command = @import("command");
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const EventHandler = @import("EventHandler");
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const tui = @import("../../tui.zig");
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const mainview = @import("../../mainview.zig");
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const Allocator = @import("std").mem.Allocator;
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const Self = @This();
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allocator: Allocator,
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key: [6]u8 = undefined,
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direction: Direction,
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operation: Operation,
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const Direction = enum {
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left,
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right,
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};
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const Operation = enum {
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move,
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select,
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};
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pub fn create(allocator: Allocator, ctx: command.Context) !struct { tui.Mode, tui.MiniMode } {
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var right: bool = true;
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const select = if (tui.current().mainview.dynamic_cast(mainview)) |mv| if (mv.get_editor()) |editor| if (editor.get_primary().selection) |_| true else false else false else false;
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_ = ctx.args.match(.{tp.extract(&right)}) catch return error.NotFound;
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const self: *Self = try allocator.create(Self);
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self.* = .{
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.allocator = allocator,
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.direction = if (right) .right else .left,
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.operation = if (select) .select else .move,
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};
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return .{
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.{
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.handler = EventHandler.to_owned(self),
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},
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.{
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.name = self.name(),
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},
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};
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}
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pub fn deinit(self: *Self) void {
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self.allocator.destroy(self);
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}
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fn name(self: *Self) []const u8 {
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return switch (self.operation) {
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.move => switch (self.direction) {
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.left => "↶ move",
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.right => "↷ move",
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},
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.select => switch (self.direction) {
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.left => " ↶ select",
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.right => " ↷ select",
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},
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};
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}
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pub fn receive(self: *Self, _: tp.pid_ref, m: tp.message) error{Exit}!bool {
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var evtype: u32 = undefined;
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var keypress: u32 = undefined;
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var modifiers: u32 = undefined;
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var egc: u32 = undefined;
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if (try m.match(.{ "I", tp.extract(&evtype), tp.extract(&keypress), tp.extract(&egc), tp.string, tp.extract(&modifiers) }))
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try self.mapEvent(evtype, keypress, egc, modifiers);
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return false;
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}
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fn mapEvent(self: *Self, evtype: u32, keypress: u32, egc: u32, modifiers: u32) tp.result {
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switch (evtype) {
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event_type.PRESS => try self.mapPress(keypress, egc, modifiers),
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else => {},
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}
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}
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fn mapPress(self: *Self, keypress: u32, egc: u32, modifiers: u32) tp.result {
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switch (keypress) {
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key.LSUPER, key.RSUPER => return,
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key.LSHIFT, key.RSHIFT => return,
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key.LCTRL, key.RCTRL => return,
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key.LALT, key.RALT => return,
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else => {},
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}
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return switch (modifiers) {
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mod.SHIFT => if (!key.synthesized_p(keypress)) self.execute_operation(egc) else self.cancel(),
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0 => switch (keypress) {
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key.ESC => self.cancel(),
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key.ENTER => self.cancel(),
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else => if (!key.synthesized_p(keypress)) self.execute_operation(egc) else self.cancel(),
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},
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else => self.cancel(),
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};
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}
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fn execute_operation(self: *Self, c: u32) void {
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const cmd = switch (self.direction) {
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.left => switch (self.operation) {
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.move => "move_to_char_left",
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.select => "select_to_char_left",
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},
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.right => switch (self.operation) {
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.move => "move_to_char_right",
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.select => "select_to_char_right",
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},
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};
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var buf: [6]u8 = undefined;
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const bytes = ucs32_to_utf8(&[_]u32{c}, &buf) catch return;
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command.executeName(cmd, command.fmt(.{buf[0..bytes]})) catch {};
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command.executeName("exit_mini_mode", .{}) catch {};
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}
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fn cancel(_: *Self) void {
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command.executeName("exit_mini_mode", .{}) catch {};
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}
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