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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/renderer_host/pepper/monitor_finder_mac.h"
#import <Cocoa/Cocoa.h>
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_frame_host.h"
namespace chrome {
MonitorFinder::MonitorFinder(int process_id, int render_frame_id)
: process_id_(process_id),
render_frame_id_(render_frame_id),
request_sent_(false),
display_id_(kCGNullDirectDisplay) {}
MonitorFinder::~MonitorFinder() {}
int64_t MonitorFinder::GetMonitor() {
{
// The plugin may call this method several times, so avoid spamming the UI
// thread with requests by only allowing one outstanding request at a time.
base::AutoLock lock(mutex_);
if (request_sent_)
return display_id_;
request_sent_ = true;
}
content::BrowserThread::PostTask(
content::BrowserThread::UI,
FROM_HERE,
base::Bind(&MonitorFinder::FetchMonitorFromWidget, this));
return display_id_;
}
// static
bool MonitorFinder::IsMonitorBuiltIn(int64_t display_id) {
return CGDisplayIsBuiltin(display_id);
}
void MonitorFinder::FetchMonitorFromWidget() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
content::RenderFrameHost* rfh =
content::RenderFrameHost::FromID(process_id_, render_frame_id_);
if (!rfh)
return;
gfx::NativeView native_view = rfh->GetNativeView();
NSWindow* window = [native_view window];
NSScreen* screen = [window screen];
CGDirectDisplayID display_id =
[[[screen deviceDescription] objectForKey:@"NSScreenNumber"] intValue];
base::AutoLock lock(mutex_);
request_sent_ = false;
display_id_ = display_id;
}
} // namespace chrome
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