1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "chrome/browser/renderer_host/pepper/monitor_finder_mac.h" 6 7 #import <Cocoa/Cocoa.h> 8 9 #include "content/public/browser/browser_thread.h" 10 #include "content/public/browser/render_frame_host.h" 11 12 namespace chrome { 13 14 MonitorFinder::MonitorFinder(int process_id, int render_frame_id) 15 : process_id_(process_id), 16 render_frame_id_(render_frame_id), 17 request_sent_(false), 18 display_id_(kCGNullDirectDisplay) {} 19 20 MonitorFinder::~MonitorFinder() {} 21 22 int64_t MonitorFinder::GetMonitor() { 23 { 24 // The plugin may call this method several times, so avoid spamming the UI 25 // thread with requests by only allowing one outstanding request at a time. 26 base::AutoLock lock(mutex_); 27 if (request_sent_) 28 return display_id_; 29 request_sent_ = true; 30 } 31 32 content::BrowserThread::PostTask( 33 content::BrowserThread::UI, 34 FROM_HERE, 35 base::Bind(&MonitorFinder::FetchMonitorFromWidget, this)); 36 return display_id_; 37 } 38 39 // static 40 bool MonitorFinder::IsMonitorBuiltIn(int64_t display_id) { 41 return CGDisplayIsBuiltin(display_id); 42 } 43 44 void MonitorFinder::FetchMonitorFromWidget() { 45 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 46 content::RenderFrameHost* rfh = 47 content::RenderFrameHost::FromID(process_id_, render_frame_id_); 48 if (!rfh) 49 return; 50 51 gfx::NativeView native_view = rfh->GetNativeView(); 52 NSWindow* window = [native_view window]; 53 NSScreen* screen = [window screen]; 54 CGDirectDisplayID display_id = 55 [[[screen deviceDescription] objectForKey:@"NSScreenNumber"] intValue]; 56 57 base::AutoLock lock(mutex_); 58 request_sent_ = false; 59 display_id_ = display_id; 60 } 61 62 } // namespace chrome 63
