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const std = @import("std");
const Allocator = std.mem.Allocator;
const HTML = @import("html/Element.zig");
const Element = @import("Element.zig");
const Self = @This();
src: []const u8,
alt: ?[]const u8 = null,
pub fn init(alloc: Allocator, src: []const u8) !*Self {
const v = try alloc.create(Self);
v.* = .{
.src = src,
};
return v;
}
pub fn element(self: *Self) Element {
return .{ .ptr = self, .vtable = .{ .deinit = destroy, .html = html } };
}
pub fn deinit(self: *Self, alloc: Allocator) void {
destroy(self, alloc);
}
fn destroy(context: *anyopaque, alloc: Allocator) void {
const self: *Self = @ptrCast(@alignCast(context));
alloc.destroy(self);
}
fn html(context: *anyopaque, alloc: Allocator) HTML.Error!HTML {
const self: *Self = @ptrCast(@alignCast(context));
var img = try HTML.init(alloc, .void, "img");
errdefer img.deinit();
try img.setAttribute("src", self.src);
if (self.alt) |it| try img.setAttribute("alt", it);
return img;
}
test "html" {
const alloc = std.testing.allocator;
const expect = std.testing.expect;
const eql = std.mem.eql;
var img = try init(alloc, "foo");
defer img.deinit(alloc);
const h = try img.element().renderHTML(alloc);
defer alloc.free(h);
try expect(eql(u8, h, "<img src=\"foo\">"));
img.alt = "bar";
const h2 = try img.element().renderHTML(alloc);
defer alloc.free(h2);
try expect(eql(u8, h2, "<img src=\"foo\" alt=\"bar\">"));
}
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