Implement select.options

Add HTMLOptionsCollection and enhance HTMLOptionElement API.

Amazon.

src/browser/dom/document.zig

@@ -149,7 +149,9 @@ pub const Document = struct {
         tag_name: []const u8,
         page: *Page,
     ) !collection.HTMLCollection {
-        return try collection.HTMLCollectionByTagName(page.arena, parser.documentToNode(self), tag_name, true);
+        return try collection.HTMLCollectionByTagName(page.arena, parser.documentToNode(self), tag_name, .{
+            .include_root = true,
+        });
     }
 
     pub fn _getElementsByClassName(
@@ -157,7 +159,9 @@ pub const Document = struct {
         classNames: []const u8,
         page: *Page,
     ) !collection.HTMLCollection {
-        return try collection.HTMLCollectionByClassName(page.arena, parser.documentToNode(self), classNames, true);
+        return try collection.HTMLCollectionByClassName(page.arena, parser.documentToNode(self), classNames, .{
+            .include_root = true,
+        });
     }
 
     pub fn _createDocumentFragment(self: *parser.Document) !*parser.DocumentFragment {
@@ -201,7 +205,9 @@ pub const Document = struct {
     // ParentNode
     // https://dom.spec.whatwg.org/#parentnode
     pub fn get_children(self: *parser.Document) !collection.HTMLCollection {
-        return try collection.HTMLCollectionChildren(parser.documentToNode(self), false);
+        return collection.HTMLCollectionChildren(parser.documentToNode(self), .{
+            .include_root = false,
+        });
     }
 
     pub fn get_firstElementChild(self: *parser.Document) !?ElementUnion {

src/browser/dom/document_fragment.zig

@@ -79,7 +79,9 @@ pub const DocumentFragment = struct {
     }
 
     pub fn get_children(self: *parser.DocumentFragment) !collection.HTMLCollection {
-        return collection.HTMLCollectionChildren(parser.documentFragmentToNode(self), false);
+        return collection.HTMLCollectionChildren(parser.documentFragmentToNode(self), .{
+            .include_root = false,
+        });
     }
 };
 

src/browser/dom/element.zig

@@ -294,7 +294,7 @@ pub const Element = struct {
             page.arena,
             parser.elementToNode(self),
             tag_name,
-            false,
+            .{ .include_root = false },
         );
     }
 
@@ -307,14 +307,16 @@ pub const Element = struct {
             page.arena,
             parser.elementToNode(self),
             classNames,
-            false,
+            .{ .include_root = false },
         );
     }
 
     // ParentNode
     // https://dom.spec.whatwg.org/#parentnode
     pub fn get_children(self: *parser.Element) !collection.HTMLCollection {
-        return try collection.HTMLCollectionChildren(parser.elementToNode(self), false);
+        return collection.HTMLCollectionChildren(parser.elementToNode(self), .{
+            .include_root = false,
+        });
     }
 
     pub fn get_firstElementChild(self: *parser.Element) !?Union {

src/browser/dom/html_collection.zig

@@ -72,13 +72,14 @@ pub fn HTMLCollectionByTagName(
     arena: Allocator,
     root: ?*parser.Node,
     tag_name: []const u8,
-    include_root: bool,
+    opts: Opts,
 ) !HTMLCollection {
     return HTMLCollection{
         .root = root,
         .walker = .{ .walkerDepthFirst = .{} },
         .matcher = .{ .matchByTagName = try MatchByTagName.init(arena, tag_name) },
-        .include_root = include_root,
+        .mutable = opts.mutable,
+        .include_root = opts.include_root,
     };
 }
 
@@ -109,13 +110,14 @@ pub fn HTMLCollectionByClassName(
     arena: Allocator,
     root: ?*parser.Node,
     classNames: []const u8,
-    include_root: bool,
+    opts: Opts,
 ) !HTMLCollection {
     return HTMLCollection{
         .root = root,
         .walker = .{ .walkerDepthFirst = .{} },
         .matcher = .{ .matchByClassName = try MatchByClassName.init(arena, classNames) },
-        .include_root = include_root,
+        .mutable = opts.mutable,
+        .include_root = opts.include_root,
     };
 }
 
@@ -139,13 +141,14 @@ pub fn HTMLCollectionByName(
     arena: Allocator,
     root: ?*parser.Node,
     name: []const u8,
-    include_root: bool,
+    opts: Opts,
 ) !HTMLCollection {
     return HTMLCollection{
         .root = root,
         .walker = .{ .walkerDepthFirst = .{} },
         .matcher = .{ .matchByName = try MatchByName.init(arena, name) },
-        .include_root = include_root,
+        .mutable = opts.mutable,
+        .include_root = opts.include_root,
     };
 }
 
@@ -189,13 +192,14 @@ pub const HTMLAllCollection = struct {
 
 pub fn HTMLCollectionChildren(
     root: ?*parser.Node,
-    include_root: bool,
-) !HTMLCollection {
+    opts: Opts,
+) HTMLCollection {
     return HTMLCollection{
         .root = root,
         .walker = .{ .walkerChildren = .{} },
         .matcher = .{ .matchTrue = .{} },
-        .include_root = include_root,
+        .mutable = opts.mutable,
+        .include_root = opts.include_root,
     };
 }
 
@@ -224,13 +228,14 @@ pub const MatchByLinks = struct {
 
 pub fn HTMLCollectionByLinks(
     root: ?*parser.Node,
-    include_root: bool,
+    opts: Opts,
 ) !HTMLCollection {
     return HTMLCollection{
         .root = root,
         .walker = .{ .walkerDepthFirst = .{} },
         .matcher = .{ .matchByLinks = MatchByLinks{} },
-        .include_root = include_root,
+        .mutable = opts.mutable,
+        .include_root = opts.include_root,
     };
 }
 
@@ -249,13 +254,14 @@ pub const MatchByAnchors = struct {
 
 pub fn HTMLCollectionByAnchors(
     root: ?*parser.Node,
-    include_root: bool,
+    opts: Opts,
 ) !HTMLCollection {
     return HTMLCollection{
         .root = root,
         .walker = .{ .walkerDepthFirst = .{} },
         .matcher = .{ .matchByAnchors = MatchByAnchors{} },
-        .include_root = include_root,
+        .mutable = opts.mutable,
+        .include_root = opts.include_root,
     };
 }
 
@@ -285,6 +291,11 @@ pub const HTMLCollectionIterator = struct {
     }
 };
 
+const Opts = struct {
+    include_root: bool,
+    mutable: bool = false,
+};
+
 // WEB IDL https://dom.spec.whatwg.org/#htmlcollection
 // HTMLCollection is re implemented in zig here because libdom
 // dom_html_collection expects a comparison function callback as arguement.
@@ -300,6 +311,8 @@ pub const HTMLCollection = struct {
     // itself.
     include_root: bool = false,
 
+    mutable: bool = false,
+
     // save a state for the collection to improve the _item speed.
     cur_idx: ?u32 = null,
     cur_node: ?*parser.Node = null,
@@ -350,12 +363,14 @@ pub const HTMLCollection = struct {
         var node: *parser.Node = undefined;
 
         // Use the current state to improve speed if possible.
-        if (self.cur_idx != null and index >= self.cur_idx.?) {
+        if (self.mutable == false and self.cur_idx != null and index >= self.cur_idx.?) {
             i = self.cur_idx.?;
             node = self.cur_node.?;
         } else {
             node = try self.start() orelse return null;
         }
+        // i = 0;
+        // node = try self.start() orelse return null;
 
         while (true) {
             if (try parser.nodeType(node) == .element) {

src/browser/html/document.zig

@@ -118,7 +118,9 @@ pub const HTMLDocument = struct {
         if (name.len == 0) return list;
 
         const root = parser.documentHTMLToNode(self);
-        var c = try collection.HTMLCollectionByName(arena, root, name, false);
+        var c = try collection.HTMLCollectionByName(arena, root, name, .{
+            .include_root = false,
+        });
 
         const ln = try c.get_length();
         var i: u32 = 0;
@@ -132,11 +134,15 @@ pub const HTMLDocument = struct {
     }
 
     pub fn get_images(self: *parser.DocumentHTML, page: *Page) !collection.HTMLCollection {
-        return try collection.HTMLCollectionByTagName(page.arena, parser.documentHTMLToNode(self), "img", false);
+        return try collection.HTMLCollectionByTagName(page.arena, parser.documentHTMLToNode(self), "img", .{
+            .include_root = false,
+        });
     }
 
     pub fn get_embeds(self: *parser.DocumentHTML, page: *Page) !collection.HTMLCollection {
-        return try collection.HTMLCollectionByTagName(page.arena, parser.documentHTMLToNode(self), "embed", false);
+        return try collection.HTMLCollectionByTagName(page.arena, parser.documentHTMLToNode(self), "embed", .{
+            .include_root = false,
+        });
     }
 
     pub fn get_plugins(self: *parser.DocumentHTML, page: *Page) !collection.HTMLCollection {
@@ -144,11 +150,15 @@ pub const HTMLDocument = struct {
     }
 
     pub fn get_forms(self: *parser.DocumentHTML, page: *Page) !collection.HTMLCollection {
-        return try collection.HTMLCollectionByTagName(page.arena, parser.documentHTMLToNode(self), "form", false);
+        return try collection.HTMLCollectionByTagName(page.arena, parser.documentHTMLToNode(self), "form", .{
+            .include_root = false,
+        });
     }
 
     pub fn get_scripts(self: *parser.DocumentHTML, page: *Page) !collection.HTMLCollection {
-        return try collection.HTMLCollectionByTagName(page.arena, parser.documentHTMLToNode(self), "script", false);
+        return try collection.HTMLCollectionByTagName(page.arena, parser.documentHTMLToNode(self), "script", .{
+            .include_root = false,
+        });
     }
 
     pub fn get_applets(_: *parser.DocumentHTML) !collection.HTMLCollection {
@@ -156,11 +166,15 @@ pub const HTMLDocument = struct {
     }
 
     pub fn get_links(self: *parser.DocumentHTML) !collection.HTMLCollection {
-        return try collection.HTMLCollectionByLinks(parser.documentHTMLToNode(self), false);
+        return try collection.HTMLCollectionByLinks(parser.documentHTMLToNode(self), .{
+            .include_root = false,
+        });
     }
 
     pub fn get_anchors(self: *parser.DocumentHTML) !collection.HTMLCollection {
-        return try collection.HTMLCollectionByAnchors(parser.documentHTMLToNode(self), false);
+        return try collection.HTMLCollectionByAnchors(parser.documentHTMLToNode(self), .{
+            .include_root = false,
+        });
     }
 
     pub fn get_all(self: *parser.DocumentHTML) collection.HTMLAllCollection {

src/browser/html/elements.zig

@@ -75,7 +75,6 @@ pub const Interfaces = .{
     HTMLOListElement,
     HTMLObjectElement,
     HTMLOptGroupElement,
-    HTMLOptionElement,
     HTMLOutputElement,
     HTMLParagraphElement,
     HTMLParamElement,
@@ -102,7 +101,7 @@ pub const Interfaces = .{
     HTMLVideoElement,
 
     @import("form.zig").HTMLFormElement,
-    @import("select.zig").HTMLSelectElement,
+    @import("select.zig").Interfaces,
 };
 
 pub const Union = generate.Union(Interfaces);
@@ -813,12 +812,6 @@ pub const HTMLOptGroupElement = struct {
     pub const subtype = .node;
 };
 
-pub const HTMLOptionElement = struct {
-    pub const Self = parser.Option;
-    pub const prototype = *HTMLElement;
-    pub const subtype = .node;
-};
-
 pub const HTMLOutputElement = struct {
     pub const Self = parser.Output;
     pub const prototype = *HTMLElement;

src/browser/html/select.zig

@@ -18,8 +18,16 @@
 const std = @import("std");
 
 const parser = @import("../netsurf.zig");
-const HTMLElement = @import("elements.zig").HTMLElement;
+const collection = @import("../dom/html_collection.zig");
+
 const Page = @import("../page.zig").Page;
+const HTMLElement = @import("elements.zig").HTMLElement;
+
+pub const Interfaces = .{
+    HTMLSelectElement,
+    HTMLOptionElement,
+    HTMLOptionsCollection,
+};
 
 pub const HTMLSelectElement = struct {
     pub const Self = parser.Select;
@@ -89,6 +97,105 @@ pub const HTMLSelectElement = struct {
             try parser.optionSetSelected(option, true);
         }
     }
+
+    pub fn get_options(select: *parser.Select) HTMLOptionsCollection {
+        return .{
+            .select = select,
+            .proto = collection.HTMLCollectionChildren(@alignCast(@ptrCast(select)), .{
+                .mutable = true,
+                .include_root = false,
+            }),
+        };
+    }
+};
+
+pub const HTMLOptionElement = struct {
+    pub const Self = parser.Option;
+    pub const prototype = *HTMLElement;
+    pub const subtype = .node;
+
+    pub fn get_value(self: *parser.Option) ![]const u8 {
+        return parser.optionGetValue(self);
+    }
+    pub fn set_value(self: *parser.Option, value: []const u8) !void {
+        return parser.optionSetValue(self, value);
+    }
+
+    pub fn get_label(self: *parser.Option) ![]const u8 {
+        return parser.optionGetLabel(self);
+    }
+    pub fn set_label(self: *parser.Option, label: []const u8) !void {
+        return parser.optionSetLabel(self, label);
+    }
+
+    pub fn get_selected(self: *parser.Option) !bool {
+        return parser.optionGetSelected(self);
+    }
+    pub fn set_selected(self: *parser.Option, value: bool) !void {
+        return parser.optionSetSelected(self, value);
+    }
+
+    pub fn get_disabled(self: *parser.Option) !bool {
+        return parser.optionGetDisabled(self);
+    }
+    pub fn set_disabled(self: *parser.Option, value: bool) !void {
+        return parser.optionSetDisabled(self, value);
+    }
+
+    pub fn get_text(self: *parser.Option) ![]const u8 {
+        return parser.optionGetText(self);
+    }
+
+    pub fn get_form(self: *parser.Option) !?*parser.Form {
+        return parser.optionGetForm(self);
+    }
+};
+
+pub const HTMLOptionsCollection = struct {
+    pub const prototype = *collection.HTMLCollection;
+
+    proto: collection.HTMLCollection,
+    select: *parser.Select,
+
+    pub fn get_selectedIndex(self: *HTMLOptionsCollection, page: *Page) !i32 {
+        return HTMLSelectElement.get_selectedIndex(self.select, page);
+    }
+
+    pub fn set_selectedIndex(self: *HTMLOptionsCollection, index: i32, page: *Page) !void {
+        return HTMLSelectElement.set_selectedIndex(self.select, index, page);
+    }
+
+    const BeforeOpts = union(enum) {
+        index: u32,
+        option: *parser.Option,
+    };
+    pub fn _add(self: *HTMLOptionsCollection, option: *parser.Option, before_: ?BeforeOpts) !void {
+        const Node = @import("../dom/node.zig").Node;
+        const before = before_ orelse {
+            return self.appendOption(option);
+        };
+
+        const insert_before: *parser.Node = switch (before) {
+            .option => |o| @alignCast(@ptrCast(o)),
+            .index => |i| (try self.proto.item(i)) orelse return self.appendOption(option),
+        };
+        return Node.before(insert_before, &.{
+            .{ .node = @alignCast(@ptrCast(option)) },
+        });
+    }
+
+    pub fn _remove(self: *HTMLOptionsCollection, index: u32) !void {
+        const Node = @import("../dom/node.zig").Node;
+        const option = (try self.proto.item(index)) orelse return;
+        _ = try Node._removeChild(@alignCast(@ptrCast(self.select)), option);
+    }
+
+    fn appendOption(self: *HTMLOptionsCollection, option: *parser.Option) !void {
+        const Node = @import("../dom/node.zig").Node;
+        return Node.append(@alignCast(@ptrCast(self.select)), &.{
+            .{ .node = @alignCast(@ptrCast(option)) },
+        });
+    }
 };
 
 const testing = @import("../../testing.zig");
@@ -140,5 +247,32 @@ test "Browser.HTML.Select" {
 
         .{ "s.selectedIndex = -323", null },
         .{ "s.selectedIndex", "-1" },
+
+        .{ "let options = s.options", null },
+        .{ "options.length", "2" },
+        .{ "options.item(1).value", "o2" },
+        .{ "options.selectedIndex", "-1" },
+
+        .{ "let o3 = document.createElement('option');", null },
+        .{ "o3.value = 'o3';", null },
+        .{ "options.add(o3)", null },
+        .{ "options.length", "3" },
+        .{ "options.item(2).value", "o3" },
+
+        .{ "let o4 = document.createElement('option');", null },
+        .{ "o4.value = 'o4';", null },
+        .{ "options.add(o4, 1)", null },
+        .{ "options.length", "4" },
+        .{ "options.item(1).value", "o4" },
+
+        .{ "let o5 = document.createElement('option');", null },
+        .{ "o5.value = 'o5';", null },
+        .{ "options.add(o5, o3)", null },
+        .{ "options.length", "5" },
+        .{ "options.item(3).value", "o5" },
+
+        .{ "options.remove(3)", null },
+        .{ "options.length", "4" },
+        .{ "options.item(3).value", "o3" },
     }, .{});
 }

src/browser/netsurf.zig

@@ -2590,6 +2590,24 @@ pub fn optionGetValue(option: *Option) ![]const u8 {
     return strToData(s);
 }
 
+pub fn optionSetLabel(input: *Option, label: []const u8) !void {
+    const err = c.dom_html_option_element_set_label(input, try strFromData(label));
+    try DOMErr(err);
+}
+
+pub fn optionGetLabel(option: *Option) ![]const u8 {
+    var s_: ?*String = null;
+    const err = c.dom_html_option_element_get_label(option, &s_);
+    try DOMErr(err);
+    const s = s_ orelse return "";
+    return strToData(s);
+}
+
+pub fn optionSetValue(input: *Option, value: []const u8) !void {
+    const err = c.dom_html_option_element_set_value(input, try strFromData(value));
+    try DOMErr(err);
+}
+
 pub fn optionGetSelected(option: *Option) !bool {
     var selected: bool = false;
     const err = c.dom_html_option_element_get_selected(option, &selected);
@@ -2597,11 +2615,38 @@ pub fn optionGetSelected(option: *Option) !bool {
     return selected;
 }
 
+pub fn optionSetDisabled(option: *Option, disabled: bool) !void {
+    const err = c.dom_html_option_element_set_disabled(option, disabled);
+    try DOMErr(err);
+}
+
+pub fn optionGetDisabled(option: *Option) !bool {
+    var disabled: bool = false;
+    const err = c.dom_html_option_element_get_disabled(option, &disabled);
+    try DOMErr(err);
+    return disabled;
+}
+
 pub fn optionSetSelected(option: *Option, selected: bool) !void {
     const err = c.dom_html_option_element_set_selected(option, selected);
     try DOMErr(err);
 }
 
+pub fn optionGetText(option: *Option) ![]const u8 {
+    var s_: ?*String = null;
+    const err = c.dom_html_option_element_get_text(option, &s_);
+    try DOMErr(err);
+    const s = s_ orelse return "";
+    return strToData(s);
+}
+
+pub fn optionGetForm(option: *Option) !?*Form {
+    var form: ?*Form = null;
+    const err = c.dom_html_option_element_get_form(option, &form);
+    try DOMErr(err);
+    return form;
+}
+
 // HtmlCollection
 pub fn htmlCollectionGetLength(collection: *HTMLCollection) !u32 {
     var len: u32 = 0;