Merge pull request #356 from lightpanda-io/location

dom: first draft for location

src/browser/browser.zig

@@ -36,6 +36,9 @@ const apiweb = @import("../apiweb.zig");
 const Window = @import("../html/window.zig").Window;
 const Walker = @import("../dom/walker.zig").WalkerDepthFirst;
 
+const URL = @import("../url/url.zig").URL;
+const Location = @import("../html/location.zig").Location;
+
 const storage = @import("../storage/storage.zig");
 
 const FetchResult = @import("../http/Client.zig").Client.FetchResult;
@@ -102,7 +105,9 @@ pub const Session = struct {
     loader: Loader,
     env: Env = undefined,
     inspector: ?jsruntime.Inspector = null,
+
     window: Window,
+
     // TODO move the shed to the browser?
     storageShed: storage.Shed,
     page: ?Page = null,
@@ -201,6 +206,10 @@ pub const Page = struct {
     uri: std.Uri = undefined,
     origin: ?[]const u8 = null,
 
+    // html url and location
+    url: ?URL = null,
+    location: Location = .{},
+
     raw_data: ?[]const u8 = null,
 
     fn init(
@@ -244,6 +253,13 @@ pub const Page = struct {
         self.session.env.stop();
         // TODO unload document: https://html.spec.whatwg.org/#unloading-documents
 
+        if (self.url) |*u| u.deinit(self.arena.allocator());
+        self.url = null;
+        self.location.url = null;
+        self.session.window.replaceLocation(&self.location) catch |e| {
+            log.err("reset window location: {any}", .{e});
+        };
+
         // clear netsurf memory arena.
         parser.deinit();
 
@@ -308,6 +324,11 @@ pub const Page = struct {
         self.rawuri = try alloc.dupe(u8, uri);
         self.uri = std.Uri.parse(self.rawuri.?) catch try std.Uri.parseAfterScheme("", self.rawuri.?);
 
+        if (self.url) |*prev| prev.deinit(alloc);
+        self.url = try URL.constructor(alloc, self.rawuri.?, null);
+        self.location.url = &self.url.?;
+        try self.session.window.replaceLocation(&self.location);
+
         // prepare origin value.
         var buf = std.ArrayList(u8).init(alloc);
         defer buf.deinit();
@@ -391,7 +412,7 @@ pub const Page = struct {
 
         // TODO set the referrer to the document.
 
-        self.session.window.replaceDocument(html_doc);
+        try self.session.window.replaceDocument(html_doc);
         self.session.window.setStorageShelf(
             try self.session.storageShed.getOrPut(self.origin orelse "null"),
         );

src/html/document.zig

@@ -28,6 +28,7 @@ const Node = @import("../dom/node.zig").Node;
 const Document = @import("../dom/document.zig").Document;
 const NodeList = @import("../dom/nodelist.zig").NodeList;
 const HTMLElem = @import("elements.zig");
+const Location = @import("location.zig").Location;
 
 const collection = @import("../dom/html_collection.zig");
 const Walker = @import("../dom/walker.zig").WalkerDepthFirst;
@@ -157,6 +158,10 @@ pub const HTMLDocument = struct {
         return try parser.documentHTMLGetCurrentScript(self);
     }
 
+    pub fn get_location(self: *parser.DocumentHTML) !?*Location {
+        return try parser.documentHTMLGetLocation(Location, self);
+    }
+
     pub fn get_designMode(_: *parser.DocumentHTML) []const u8 {
         return "off";
     }

src/html/html.zig

@@ -23,6 +23,7 @@ const HTMLElem = @import("elements.zig");
 const Window = @import("window.zig").Window;
 const Navigator = @import("navigator.zig").Navigator;
 const History = @import("history.zig").History;
+const Location = @import("location.zig").Location;
 
 pub const Interfaces = generate.Tuple(.{
     HTMLDocument,
@@ -32,4 +33,5 @@ pub const Interfaces = generate.Tuple(.{
     Window,
     Navigator,
     History,
+    Location,
 });

src/html/location.zig

@@ -0,0 +1,129 @@
+// Copyright (C) 2023-2024  Lightpanda (Selecy SAS)
+//
+// Francis Bouvier <francis@lightpanda.io>
+// Pierre Tachoire <pierre@lightpanda.io>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const builtin = @import("builtin");
+const jsruntime = @import("jsruntime");
+
+const URL = @import("../url/url.zig").URL;
+
+const Case = jsruntime.test_utils.Case;
+const checkCases = jsruntime.test_utils.checkCases;
+
+// https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-location-interface
+pub const Location = struct {
+    pub const mem_guarantied = true;
+
+    url: ?*URL = null,
+
+    pub fn deinit(_: *Location, _: std.mem.Allocator) void {}
+
+    pub fn get_href(self: *Location, alloc: std.mem.Allocator) ![]const u8 {
+        if (self.url) |u| return u.get_href(alloc);
+
+        return "";
+    }
+
+    pub fn get_protocol(self: *Location, alloc: std.mem.Allocator) ![]const u8 {
+        if (self.url) |u| return u.get_protocol(alloc);
+
+        return "";
+    }
+
+    pub fn get_host(self: *Location, alloc: std.mem.Allocator) ![]const u8 {
+        if (self.url) |u| return u.get_host(alloc);
+
+        return "";
+    }
+
+    pub fn get_hostname(self: *Location) []const u8 {
+        if (self.url) |u| return u.get_hostname();
+
+        return "";
+    }
+
+    pub fn get_port(self: *Location, alloc: std.mem.Allocator) ![]const u8 {
+        if (self.url) |u| return u.get_port(alloc);
+
+        return "";
+    }
+
+    pub fn get_pathname(self: *Location) []const u8 {
+        if (self.url) |u| return u.get_pathname();
+
+        return "";
+    }
+
+    pub fn get_search(self: *Location, alloc: std.mem.Allocator) ![]const u8 {
+        if (self.url) |u| return u.get_search(alloc);
+
+        return "";
+    }
+
+    pub fn get_hash(self: *Location, alloc: std.mem.Allocator) ![]const u8 {
+        if (self.url) |u| return u.get_hash(alloc);
+
+        return "";
+    }
+
+    pub fn get_origin(self: *Location, alloc: std.mem.Allocator) ![]const u8 {
+        if (self.url) |u| return u.get_origin(alloc);
+
+        return "";
+    }
+
+    // TODO
+    pub fn _assign(_: *Location, url: []const u8) !void {
+        _ = url;
+    }
+
+    // TODO
+    pub fn _replace(_: *Location, url: []const u8) !void {
+        _ = url;
+    }
+
+    // TODO
+    pub fn _reload(_: *Location) !void {}
+
+    pub fn _toString(self: *Location, alloc: std.mem.Allocator) ![]const u8 {
+        return try self.get_href(alloc);
+    }
+};
+
+// Tests
+// -----
+
+pub fn testExecFn(
+    _: std.mem.Allocator,
+    js_env: *jsruntime.Env,
+) anyerror!void {
+    var location = [_]Case{
+        .{ .src = "location.href", .ex = "https://lightpanda.io/opensource-browser/" },
+        .{ .src = "document.location.href", .ex = "https://lightpanda.io/opensource-browser/" },
+
+        .{ .src = "location.host", .ex = "lightpanda.io" },
+        .{ .src = "location.hostname", .ex = "lightpanda.io" },
+        .{ .src = "location.origin", .ex = "https://lightpanda.io" },
+        .{ .src = "location.pathname", .ex = "/opensource-browser/" },
+        .{ .src = "location.hash", .ex = "" },
+        .{ .src = "location.port", .ex = "" },
+        .{ .src = "location.search", .ex = "" },
+    };
+    try checkCases(js_env, &location);
+}

src/html/window.zig

@@ -27,9 +27,12 @@ const Loop = jsruntime.Loop;
 const EventTarget = @import("../dom/event_target.zig").EventTarget;
 const Navigator = @import("navigator.zig").Navigator;
 const History = @import("history.zig").History;
+const Location = @import("location.zig").Location;
 
 const storage = @import("../storage/storage.zig");
 
+var emptyLocation = Location{};
+
 // https://dom.spec.whatwg.org/#interface-window-extensions
 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#window
 pub const Window = struct {
@@ -43,6 +46,7 @@ pub const Window = struct {
     document: ?*parser.DocumentHTML = null,
     target: []const u8,
     history: History = .{},
+    location: *Location = &emptyLocation,
 
     storageShelf: ?*storage.Shelf = null,
 
@@ -60,8 +64,17 @@ pub const Window = struct {
         };
     }
 
-    pub fn replaceDocument(self: *Window, doc: *parser.DocumentHTML) void {
+    pub fn replaceLocation(self: *Window, loc: *Location) !void {
+        self.location = loc;
+
+        if (self.document != null) {
+            try parser.documentHTMLSetLocation(Location, self.document.?, self.location);
+        }
+    }
+
+    pub fn replaceDocument(self: *Window, doc: *parser.DocumentHTML) !void {
         self.document = doc;
+        try parser.documentHTMLSetLocation(Location, doc, self.location);
     }
 
     pub fn setStorageShelf(self: *Window, shelf: *storage.Shelf) void {
@@ -76,6 +89,10 @@ pub const Window = struct {
         return &self.navigator;
     }
 
+    pub fn get_location(self: *Window) *Location {
+        return self.location;
+    }
+
     pub fn get_self(self: *Window) *Window {
         return self;
     }

src/main_shell.zig

@@ -55,7 +55,7 @@ fn execJS(
 
     // alias global as self and window
     var window = Window.create(null, null);
-    window.replaceDocument(doc);
+    try window.replaceDocument(doc);
     window.setStorageShelf(&storageShelf);
     try js_env.bindGlobal(window);
 

src/netsurf/netsurf.zig

@@ -2264,3 +2264,20 @@ pub fn documentHTMLGetCurrentScript(doc: *DocumentHTML) !?*Script {
     if (elem == null) return null;
     return @ptrCast(elem.?);
 }
+
+pub fn documentHTMLSetLocation(T: type, doc: *DocumentHTML, location: *T) !void {
+    const l = @as(*anyopaque, @ptrCast(location));
+    const err = documentHTMLVtable(doc).set_location.?(doc, l);
+    try DOMErr(err);
+}
+
+pub fn documentHTMLGetLocation(T: type, doc: *DocumentHTML) !?*T {
+    var l: ?*anyopaque = undefined;
+    const err = documentHTMLVtable(doc).get_location.?(doc, &l);
+    try DOMErr(err);
+
+    if (l == null) return null;
+
+    const ptr: *align(@alignOf(*T)) anyopaque = @alignCast(l.?);
+    return @as(*T, @ptrCast(ptr));
+}

src/run_tests.zig

@@ -29,8 +29,10 @@ const Window = @import("html/window.zig").Window;
 const xhr = @import("xhr/xhr.zig");
 const storage = @import("storage/storage.zig");
 const url = @import("url/url.zig");
+const URL = url.URL;
 const urlquery = @import("url/query.zig");
 const Client = @import("asyncio").Client;
+const Location = @import("html/location.zig").Location;
 
 const documentTestExecFn = @import("dom/document.zig").testExecFn;
 const HTMLDocumentTestExecFn = @import("html/document.zig").testExecFn;
@@ -98,7 +100,12 @@ fn testExecFn(
     // alias global as self and window
     var window = Window.create(null, null);
 
-    window.replaceDocument(doc);
+    var u = try URL.constructor(alloc, "https://lightpanda.io/opensource-browser/", null);
+    defer u.deinit(alloc);
+    var location = Location{ .url = &u };
+    try window.replaceLocation(&location);
+
+    try window.replaceDocument(doc);
     window.setStorageShelf(&storageShelf);
 
     try js_env.bindGlobal(window);
@@ -139,6 +146,7 @@ fn testsAllExecFn(
         @import("polyfill/fetch.zig").testExecFn,
         @import("html/navigator.zig").testExecFn,
         @import("html/history.zig").testExecFn,
+        @import("html/location.zig").testExecFn,
     };
 
     inline for (testFns) |testFn| {

src/wpt/run.zig

@@ -91,7 +91,7 @@ pub fn run(arena: *std.heap.ArenaAllocator, comptime dir: []const u8, f: []const
 
     // setup global env vars.
     var window = Window.create(null, null);
-    window.replaceDocument(html_doc);
+    try window.replaceDocument(html_doc);
     window.setStorageShelf(&storageShelf);
     try js_env.bindGlobal(&window);