Let Page.navigate do actually navigation

Signed-off-by: Francis Bouvier <francis@lightpanda.io>

src/cdp/cdp.zig

@@ -262,3 +262,7 @@ pub const SessionID = "9559320D92474062597D9875C664CAC0";
 pub const URLBase = "chrome://newtab/";
 pub const FrameID = "90D14BBD8AED408A0467AC93100BCDBE";
 pub const LoaderID = "CFC8BED824DD2FD56CF1EF33C965C79C";
+
+pub const TimestampEvent = struct {
+    timestamp: f64,
+};

src/cdp/page.zig

@@ -6,6 +6,7 @@ const cdp = @import("cdp.zig");
 const result = cdp.result;
 const getParams = cdp.getParams;
 const stringify = cdp.stringify;
+const sendEvent = cdp.sendEvent;
 
 const PageMethods = enum {
     enable,
@@ -45,6 +46,21 @@ fn enable(
     return result(alloc, id, null, null, sessionID);
 }
 
+const Frame = struct {
+    id: []const u8,
+    loaderId: []const u8,
+    url: []const u8,
+    domainAndRegistry: []const u8 = "",
+    securityOrigin: []const u8,
+    mimeType: []const u8 = "text/html",
+    adFrameStatus: struct {
+        adFrameType: []const u8 = "none",
+    } = .{},
+    secureContextType: []const u8,
+    crossOriginIsolatedContextType: []const u8 = "NotIsolated",
+    gatedAPIFeatures: [][]const u8 = &[0][]const u8{},
+};
+
 fn getFrameTree(
     alloc: std.mem.Allocator,
     id: u64,
@@ -54,20 +70,7 @@ fn getFrameTree(
     const sessionID = try cdp.getSessionID(scanner);
     const FrameTree = struct {
         frameTree: struct {
-            frame: struct {
+            frame: Frame,
-                id: []const u8,
-                loaderId: []const u8,
-                url: []const u8,
-                domainAndRegistry: []const u8 = "",
-                securityOrigin: []const u8,
-                mimeType: []const u8 = "text/html",
-                adFrameStatus: struct {
-                    adFrameType: []const u8 = "none",
-                } = .{},
-                secureContextType: []const u8,
-                crossOriginIsolatedContextType: []const u8 = "NotIsolated",
-                gatedAPIFeatures: [][]const u8 = &[0][]const u8{},
-            },
         },
         childFrames: ?[]@This() = null,
     };
@@ -105,6 +108,13 @@ fn setLifecycleEventsEnabled(
     return result(alloc, id, null, null, sessionID);
 }
 
+const LifeCycleEvent = struct {
+    frameId: []const u8,
+    loaderId: ?[]const u8,
+    name: []const u8 = undefined,
+    timestamp: f32 = undefined,
+};
+
 fn addScriptToEvaluateOnNewDocument(
     alloc: std.mem.Allocator,
     id: u64,
@@ -162,14 +172,31 @@ fn navigate(
         frameId: ?[]const u8 = null,
         referrerPolicy: ?[]const u8 = null, // TODO: enum
     };
-    const content = try cdp.getContent(alloc, Params, scanner);
+    const input = try cdp.getContent(alloc, Params, scanner);
-    std.debug.assert(content.sessionID != null);
+    const sessionID = input.sessionID;
+    std.debug.assert(sessionID != null);
 
     // change state
-    ctx.state.url = content.params.url;
+    ctx.state.url = input.params.url;
     ctx.state.loaderID = "AF8667A203C5392DBE9AC290044AA4C2";
 
-    var page = try ctx.browser.currentSession().createPage();
+    var life_event = LifeCycleEvent{
+        .frameId = ctx.state.frameID,
+        .loaderId = ctx.state.loaderID,
+    };
+    var ts_event: cdp.TimestampEvent = undefined;
+
+    // frameStartedLoading event
+    const FrameStartedLoading = struct {
+        frameId: []const u8,
+    };
+    const frame_started_loading = FrameStartedLoading{ .frameId = ctx.state.frameID };
+    try sendEvent(alloc, ctx, "Page.frameStartedLoading", FrameStartedLoading, frame_started_loading, sessionID);
+    if (ctx.state.page_life_cycle_events) {
+        life_event.name = "init";
+        life_event.timestamp = 343721.796037;
+        try sendEvent(alloc, ctx, "Page.lifeCycleEvent", LifeCycleEvent, life_event, sessionID);
+    }
 
     // output
     const Resp = struct {
@@ -181,5 +208,56 @@ fn navigate(
         .frameId = ctx.state.frameID,
         .loaderId = ctx.state.loaderID,
     };
-    return result(alloc, id, Resp, resp, content.sessionID);
+    const res = try result(alloc, id, Resp, resp, sessionID);
+    std.log.debug("res {s}", .{res});
+    try server.sendSync(ctx, res);
+
+    // launch navigate
+    var p = try ctx.browser.currentSession().createPage();
+    _ = try p.navigate(input.params.url);
+
+    // frameNavigated event
+    const FrameNavigated = struct {
+        frame: Frame,
+        type: []const u8 = "Navigation",
+    };
+    const frame_navigated = FrameNavigated{
+        .frame = .{
+            .id = ctx.state.frameID,
+            .url = ctx.state.url,
+            .securityOrigin = ctx.state.securityOrigin,
+            .secureContextType = ctx.state.secureContextType,
+            .loaderId = ctx.state.loaderID,
+        },
+    };
+    try sendEvent(alloc, ctx, "Page.frameNavigated", FrameNavigated, frame_navigated, sessionID);
+    if (ctx.state.page_life_cycle_events) {
+        life_event.name = "load";
+        life_event.timestamp = 343721.824655;
+        try sendEvent(alloc, ctx, "Page.lifeCycleEvent", LifeCycleEvent, life_event, sessionID);
+    }
+
+    // domContentEventFired event
+    ts_event = .{ .timestamp = 343721.803338 };
+    try sendEvent(alloc, ctx, "Page.domContentEventFired", cdp.TimestampEvent, ts_event, sessionID);
+    if (ctx.state.page_life_cycle_events) {
+        life_event.name = "DOMContentLoaded";
+        life_event.timestamp = 343721.803338;
+        try sendEvent(alloc, ctx, "Page.lifeCycleEvent", LifeCycleEvent, life_event, sessionID);
+    }
+
+    // loadEventFired event
+    ts_event = .{ .timestamp = 343721.824655 };
+    try sendEvent(alloc, ctx, "Page.loadEventFired", cdp.TimestampEvent, ts_event, sessionID);
+    if (ctx.state.page_life_cycle_events) {
+        life_event.name = "load";
+        life_event.timestamp = 343721.824655;
+        try sendEvent(alloc, ctx, "Page.lifeCycleEvent", LifeCycleEvent, life_event, sessionID);
+    }
+
+    // frameStoppedLoading
+    const FrameStoppedLoading = struct { frameId: []const u8 };
+    try sendEvent(alloc, ctx, "Page.frameStoppedLoading", FrameStoppedLoading, .{ .frameId = ctx.state.frameID }, sessionID);
+
+    return "";
 }

src/server.zig

@@ -76,9 +76,12 @@ pub const Cmd = struct {
                 }
                 @panic(@errorName(err));
             };
-            std.log.debug("res {s}", .{res});
 
-            sendAsync(self, res) catch unreachable;
+            // send result
+            if (!std.mem.eql(u8, res, "")) {
+                std.log.debug("res {s}", .{res});
+                sendAsync(self, res) catch unreachable;
+            }
 
             if (pos == null) break;