LibWeb+LibWebView+WebContent: Add did_change_url() IPC call

Userland/Libraries/LibWeb/HTML/TraversableNavigable.cpp

@@ -788,6 +788,8 @@ TraversableNavigable::HistoryStepResult TraversableNavigable::apply_the_history_
     auto forward_enabled = m_current_session_history_step < static_cast<int>(m_session_history_entries.size()) - 1;
     page().client().page_did_update_navigation_buttons_state(back_enabled, forward_enabled);
 
+    page().client().page_did_change_url(current_session_history_entry()->url());
+
     // 21. Return "applied".
     return HistoryStepResult::Applied;
 }

Userland/Libraries/LibWeb/Page/Page.h

@@ -251,6 +251,7 @@ public:
     virtual CSS::PreferredColorScheme preferred_color_scheme() const = 0;
     virtual void paint(DevicePixelRect const&, Gfx::Bitmap&, PaintOptions = {}) = 0;
     virtual void page_did_change_title(ByteString const&) { }
+    virtual void page_did_change_url(URL::URL const&) { }
     virtual void page_did_request_navigate_back() { }
     virtual void page_did_request_navigate_forward() { }
     virtual void page_did_request_refresh() { }

Userland/Libraries/LibWebView/ViewImplementation.h

@@ -143,6 +143,7 @@ public:
     Function<void(URL::URL const&, ByteString const& target, unsigned modifiers)> on_link_click;
     Function<void(URL::URL const&, ByteString const& target, unsigned modifiers)> on_link_middle_click;
     Function<void(ByteString const&)> on_title_change;
+    Function<void(URL::URL const&)> on_url_change;
     Function<void(URL::URL const&, bool)> on_load_start;
     Function<void(URL::URL const&)> on_load_finish;
     Function<void(URL::URL const&, Web::HTML::HistoryHandlingBehavior)> on_history_api_push_or_replace;

Userland/Libraries/LibWebView/WebContentClient.cpp

@@ -142,6 +142,14 @@ void WebContentClient::did_change_title(u64 page_id, ByteString const& title)
     }
 }
 
+void WebContentClient::did_change_url(u64 page_id, URL::URL const& url)
+{
+    if (auto view = view_for_page_id(page_id); view.has_value()) {
+        if (view->on_url_change)
+            view->on_url_change(url);
+    }
+}
+
 void WebContentClient::did_request_scroll(u64 page_id, i32 x_delta, i32 y_delta)
 {
     if (auto view = view_for_page_id(page_id); view.has_value()) {

Userland/Libraries/LibWebView/WebContentClient.h

@@ -47,6 +47,7 @@ private:
     virtual void did_request_cursor_change(u64 page_id, i32) override;
     virtual void did_layout(u64 page_id, Gfx::IntSize) override;
     virtual void did_change_title(u64 page_id, ByteString const&) override;
+    virtual void did_change_url(u64 page_id, URL::URL const&) override;
     virtual void did_request_scroll(u64 page_id, i32, i32) override;
     virtual void did_request_scroll_to(u64 page_id, Gfx::IntPoint) override;
     virtual void did_enter_tooltip_area(u64 page_id, Gfx::IntPoint, ByteString const&) override;

Userland/Services/WebContent/PageClient.cpp

@@ -257,6 +257,11 @@ void PageClient::page_did_change_title(ByteString const& title)
     client().async_did_change_title(m_id, title);
 }
 
+void PageClient::page_did_change_url(URL::URL const& url)
+{
+    client().async_did_change_url(m_id, url);
+}
+
 void PageClient::page_did_request_navigate_back()
 {
     client().async_did_request_navigate_back(m_id);

Userland/Services/WebContent/PageClient.h

@@ -95,6 +95,7 @@ private:
     virtual void page_did_request_cursor_change(Gfx::StandardCursor) override;
     virtual void page_did_layout() override;
     virtual void page_did_change_title(ByteString const&) override;
+    virtual void page_did_change_url(URL::URL const&) override;
     virtual void page_did_request_navigate_back() override;
     virtual void page_did_request_navigate_forward() override;
     virtual void page_did_request_refresh() override;

Userland/Services/WebContent/WebContentClient.ipc

@@ -31,6 +31,7 @@ endpoint WebContentClient
     did_request_cursor_change(u64 page_id, i32 cursor_type) =|
     did_layout(u64 page_id, Gfx::IntSize content_size) =|
     did_change_title(u64 page_id, ByteString title) =|
+    did_change_url(u64 page_id, URL::URL url) =|
     did_request_scroll(u64 page_id, i32 x_delta, i32 y_delta) =|
     did_request_scroll_to(u64 page_id, Gfx::IntPoint scroll_position) =|
     did_enter_tooltip_area(u64 page_id, Gfx::IntPoint content_position, ByteString title) =|