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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "headless/lib/browser/protocol/target_handler.h"
#include <ranges>
#include <string_view>
#include "build/build_config.h"
#include "headless/lib/browser/headless_browser_context_impl.h"
#include "headless/lib/browser/headless_browser_impl.h"
#include "headless/lib/browser/headless_web_contents_impl.h"
#include "headless/public/headless_window_state.h"
#include "ui/gfx/geometry/rect.h"
namespace headless {
namespace protocol {
TargetHandler::TargetHandler(HeadlessBrowserImpl* browser)
: browser_(browser) {}
TargetHandler::~TargetHandler() = default;
void TargetHandler::Wire(UberDispatcher* dispatcher) {
Target::Dispatcher::wire(dispatcher, this);
}
Response TargetHandler::Disable() {
while (!hidden_web_contents_.empty()) {
// Destroy all existing hidden targets when session is closed. Some of them
// can be already closed.
auto target_id = *hidden_web_contents_.begin();
auto agent_host = content::DevToolsAgentHost::GetForId(target_id);
if (agent_host) {
// The target is still alive, so destroy it.
agent_host->Close();
}
hidden_web_contents_.erase(hidden_web_contents_.begin());
}
return Response::Success();
}
Response TargetHandler::CreateTarget(
const std::string& url,
std::optional<int> left,
std::optional<int> top,
std::optional<int> width,
std::optional<int> height,
std::optional<std::string> window_state,
std::optional<std::string> context_id,
std::optional<bool> enable_begin_frame_control,
std::optional<bool> new_window,
std::optional<bool> background,
std::optional<bool> for_tab,
std::optional<bool> hidden,
std::string* out_target_id) {
#if BUILDFLAG(IS_MAC)
if (enable_begin_frame_control.value_or(false)) {
return Response::ServerError(
"BeginFrameControl is not supported on MacOS yet");
}
#endif
std::optional<HeadlessWindowState> headless_window_state;
if (window_state) {
headless_window_state = GetWindowStateFromProtocol(*window_state);
if (!headless_window_state) {
return Response::InvalidParams("Invalid target window state: " +
*window_state);
}
}
HeadlessBrowserContext* context;
if (context_id.has_value()) {
context = browser_->GetBrowserContextForId(context_id.value());
if (!context)
return Response::InvalidParams("browserContextId");
} else {
context = browser_->GetDefaultBrowserContext();
if (!context) {
return Response::ServerError(
"You specified no |browserContextId|, but "
"there is no default browser context set on "
"HeadlessBrowser");
}
}
GURL gurl(url);
if (gurl.is_empty()) {
gurl = GURL(url::kAboutBlankURL);
}
if (hidden.value_or(false)) {
if (for_tab.value_or(false)) {
return protocol::Response::InvalidParams(
"Hidden target cannot be created for tab");
}
if (new_window) {
return protocol::Response::InvalidParams(
"Hidden target cannot be created in a new window");
}
if (!background.value_or(true)) {
return protocol::Response::InvalidParams(
"Hidden target can be created only in background");
}
// Create a hidden target.
HeadlessWebContentsImpl* web_contents_impl = HeadlessWebContentsImpl::From(
context->CreateWebContentsBuilder().SetInitialURL(gurl).Build());
*out_target_id = content::DevToolsAgentHost::GetOrCreateFor(
web_contents_impl->web_contents())
->GetId();
// Keep hidden target's ID in the hidden_web_contents_ to close it when the
// session is closed.
hidden_web_contents_.insert(*out_target_id);
return Response::Success();
}
const gfx::Rect target_window_bounds(
left.value_or(0), top.value_or(0),
width.value_or(browser_->options()->window_size.width()),
height.value_or(browser_->options()->window_size.height()));
const HeadlessWindowState target_window_state =
headless_window_state.value_or(HeadlessWindowState::kNormal);
HeadlessWebContentsImpl* web_contents_impl = HeadlessWebContentsImpl::From(
context->CreateWebContentsBuilder()
.SetInitialURL(gurl)
.SetWindowBounds(target_window_bounds)
.SetWindowState(target_window_state)
.SetEnableBeginFrameControl(
enable_begin_frame_control.value_or(false))
.Build());
content::WebContents* wc = web_contents_impl->web_contents();
auto devtools_agent_host =
for_tab.value_or(false)
? content::DevToolsAgentHost::GetOrCreateForTab(wc)
: content::DevToolsAgentHost::GetOrCreateFor(wc);
*out_target_id = devtools_agent_host->GetId();
return Response::Success();
}
Response TargetHandler::CloseTarget(const std::string& target_id,
bool* out_success) {
auto agent_host = content::DevToolsAgentHost::GetForId(target_id);
if (!agent_host) {
return Response::InvalidParams("No target found for targetId");
}
*out_success = agent_host->Close();
return Response::Success();
}
} // namespace protocol
} // namespace headless
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