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1 // Copyright (c) 2012 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 "content/child/npapi/plugin_instance.h"
6 
7 #include "base/bind.h"
8 #include "base/command_line.h"
9 #include "base/file_util.h"
10 #include "base/message_loop/message_loop.h"
11 #include "base/strings/string_number_conversions.h"
12 #include "base/strings/utf_string_conversions.h"
13 #include "build/build_config.h"
14 #include "content/child/npapi/plugin_host.h"
15 #include "content/child/npapi/plugin_lib.h"
16 #include "content/child/npapi/plugin_stream_url.h"
17 #include "content/child/npapi/plugin_string_stream.h"
18 #include "content/child/npapi/webplugin.h"
19 #include "content/child/npapi/webplugin_delegate.h"
20 #include "content/child/npapi/webplugin_resource_client.h"
21 #include "content/public/common/content_constants.h"
22 #include "content/public/common/content_switches.h"
23 #include "net/base/escape.h"
24 
25 #if defined(OS_MACOSX)
26 #include <ApplicationServices/ApplicationServices.h>
27 #endif
28 
29 namespace content {
30 
PluginInstance(PluginLib * plugin,const std::string & mime_type)31 PluginInstance::PluginInstance(PluginLib* plugin, const std::string& mime_type)
32     : plugin_(plugin),
33       npp_(0),
34       host_(PluginHost::Singleton()),
35       npp_functions_(plugin->functions()),
36       window_handle_(0),
37       windowless_(false),
38       transparent_(true),
39       webplugin_(0),
40       mime_type_(mime_type),
41       get_notify_data_(0),
42       use_mozilla_user_agent_(false),
43 #if defined (OS_MACOSX)
44 #ifdef NP_NO_QUICKDRAW
45       drawing_model_(NPDrawingModelCoreGraphics),
46 #else
47       drawing_model_(NPDrawingModelQuickDraw),
48 #endif
49 #ifdef NP_NO_CARBON
50       event_model_(NPEventModelCocoa),
51 #else
52       event_model_(NPEventModelCarbon),
53 #endif
54       currently_handled_event_(NULL),
55 #endif
56       message_loop_(base::MessageLoop::current()),
57       load_manually_(false),
58       in_close_streams_(false),
59       next_timer_id_(1),
60       next_notify_id_(0),
61       next_range_request_id_(0),
62       handles_url_redirects_(false) {
63   npp_ = new NPP_t();
64   npp_->ndata = 0;
65   npp_->pdata = 0;
66 
67   if (mime_type_ == kFlashPluginSwfMimeType)
68     transparent_ = false;
69 
70   memset(&zero_padding_, 0, sizeof(zero_padding_));
71   DCHECK(message_loop_);
72 }
73 
~PluginInstance()74 PluginInstance::~PluginInstance() {
75   CloseStreams();
76 
77   if (npp_ != 0) {
78     delete npp_;
79     npp_ = 0;
80   }
81 
82   if (plugin_.get())
83     plugin_->CloseInstance();
84 }
85 
CreateStream(unsigned long resource_id,const GURL & url,const std::string & mime_type,int notify_id)86 PluginStreamUrl* PluginInstance::CreateStream(unsigned long resource_id,
87                                               const GURL& url,
88                                               const std::string& mime_type,
89                                               int notify_id) {
90 
91   bool notify;
92   void* notify_data;
93   GetNotifyData(notify_id, &notify, &notify_data);
94   PluginStreamUrl* stream = new PluginStreamUrl(
95       resource_id, url, this, notify, notify_data);
96 
97   AddStream(stream);
98   return stream;
99 }
100 
AddStream(PluginStream * stream)101 void PluginInstance::AddStream(PluginStream* stream) {
102   open_streams_.push_back(make_scoped_refptr(stream));
103 }
104 
RemoveStream(PluginStream * stream)105 void PluginInstance::RemoveStream(PluginStream* stream) {
106   if (in_close_streams_)
107     return;
108 
109   std::vector<scoped_refptr<PluginStream> >::iterator stream_index;
110   for (stream_index = open_streams_.begin();
111        stream_index != open_streams_.end(); ++stream_index) {
112     if (stream_index->get() == stream) {
113       open_streams_.erase(stream_index);
114       break;
115     }
116   }
117 }
118 
IsValidStream(const NPStream * stream)119 bool PluginInstance::IsValidStream(const NPStream* stream) {
120   std::vector<scoped_refptr<PluginStream> >::iterator stream_index;
121   for (stream_index = open_streams_.begin();
122           stream_index != open_streams_.end(); ++stream_index) {
123     if ((*stream_index)->stream() == stream)
124       return true;
125   }
126 
127   return false;
128 }
129 
CloseStreams()130 void PluginInstance::CloseStreams() {
131   in_close_streams_ = true;
132   for (unsigned int index = 0; index < open_streams_.size(); ++index) {
133     // Close all streams on the way down.
134     open_streams_[index]->Close(NPRES_USER_BREAK);
135   }
136   open_streams_.clear();
137   in_close_streams_ = false;
138 }
139 
GetRangeRequest(int id)140 WebPluginResourceClient* PluginInstance::GetRangeRequest(
141     int id) {
142   PendingRangeRequestMap::iterator iter = pending_range_requests_.find(id);
143   if (iter == pending_range_requests_.end()) {
144     NOTREACHED();
145     return NULL;
146   }
147 
148   WebPluginResourceClient* rv = iter->second->AsResourceClient();
149   pending_range_requests_.erase(iter);
150   return rv;
151 }
152 
Start(const GURL & url,char ** const param_names,char ** const param_values,int param_count,bool load_manually)153 bool PluginInstance::Start(const GURL& url,
154                            char** const param_names,
155                            char** const param_values,
156                            int param_count,
157                            bool load_manually) {
158   load_manually_ = load_manually;
159   unsigned short mode = load_manually_ ? NP_FULL : NP_EMBED;
160   npp_->ndata = this;
161 
162   NPError err = NPP_New(mode, param_count,
163       const_cast<char **>(param_names), const_cast<char **>(param_values));
164 
165   if (err == NPERR_NO_ERROR) {
166     handles_url_redirects_ =
167         ((npp_functions_->version >= NPVERS_HAS_URL_REDIRECT_HANDLING) &&
168          (npp_functions_->urlredirectnotify));
169   }
170   return err == NPERR_NO_ERROR;
171 }
172 
GetPluginScriptableObject()173 NPObject *PluginInstance::GetPluginScriptableObject() {
174   NPObject *value = NULL;
175   NPError error = NPP_GetValue(NPPVpluginScriptableNPObject, &value);
176   if (error != NPERR_NO_ERROR || value == NULL)
177     return NULL;
178   return value;
179 }
180 
GetFormValue(base::string16 * value)181 bool PluginInstance::GetFormValue(base::string16* value) {
182   // Plugins will allocate memory for the return value by using NPN_MemAlloc().
183   char *plugin_value = NULL;
184   NPError error = NPP_GetValue(NPPVformValue, &plugin_value);
185   if (error != NPERR_NO_ERROR || !plugin_value) {
186     return false;
187   }
188   // Assumes the result is UTF8 text, as Firefox does.
189   *value = base::UTF8ToUTF16(plugin_value);
190   host_->host_functions()->memfree(plugin_value);
191   return true;
192 }
193 
194 // WebPluginLoadDelegate methods
DidFinishLoadWithReason(const GURL & url,NPReason reason,int notify_id)195 void PluginInstance::DidFinishLoadWithReason(const GURL& url,
196                                              NPReason reason,
197                                              int notify_id) {
198   bool notify;
199   void* notify_data;
200   GetNotifyData(notify_id, &notify, &notify_data);
201   if (!notify) {
202     NOTREACHED();
203     return;
204   }
205 
206   NPP_URLNotify(url.spec().c_str(), reason, notify_data);
207 }
208 
GetBackingTextureId()209 unsigned PluginInstance::GetBackingTextureId() {
210   // By default the plugin instance is not backed by an OpenGL texture.
211   return 0;
212 }
213 
214 // NPAPI methods
NPP_New(unsigned short mode,short argc,char * argn[],char * argv[])215 NPError PluginInstance::NPP_New(unsigned short mode,
216                                 short argc,
217                                 char* argn[],
218                                 char* argv[]) {
219   DCHECK(npp_functions_ != 0);
220   DCHECK(npp_functions_->newp != 0);
221   DCHECK(argc >= 0);
222 
223   if (npp_functions_->newp != 0) {
224     return npp_functions_->newp(
225         (NPMIMEType)mime_type_.c_str(), npp_, mode,  argc, argn, argv, NULL);
226   }
227   return NPERR_INVALID_FUNCTABLE_ERROR;
228 }
229 
NPP_Destroy()230 void PluginInstance::NPP_Destroy() {
231   DCHECK(npp_functions_ != 0);
232   DCHECK(npp_functions_->destroy != 0);
233 
234   if (npp_functions_->destroy != 0) {
235     NPSavedData *savedData = 0;
236     npp_functions_->destroy(npp_, &savedData);
237 
238     // TODO: Support savedData.  Technically, these need to be
239     //       saved on a per-URL basis, and then only passed
240     //       to new instances of the plugin at the same URL.
241     //       Sounds like a huge security risk.  When we do support
242     //       these, we should pass them back to the PluginLib
243     //       to be stored there.
244     DCHECK(savedData == 0);
245   }
246 
247   for (unsigned int file_index = 0; file_index < files_created_.size();
248        file_index++) {
249     base::DeleteFile(files_created_[file_index], false);
250   }
251 
252   // Ensure that no timer callbacks are invoked after NPP_Destroy.
253   timers_.clear();
254 }
255 
NPP_SetWindow(NPWindow * window)256 NPError PluginInstance::NPP_SetWindow(NPWindow* window) {
257   DCHECK(npp_functions_ != 0);
258   DCHECK(npp_functions_->setwindow != 0);
259 
260   if (npp_functions_->setwindow != 0) {
261     return npp_functions_->setwindow(npp_, window);
262   }
263   return NPERR_INVALID_FUNCTABLE_ERROR;
264 }
265 
NPP_NewStream(NPMIMEType type,NPStream * stream,NPBool seekable,unsigned short * stype)266 NPError PluginInstance::NPP_NewStream(NPMIMEType type,
267                                       NPStream* stream,
268                                       NPBool seekable,
269                                       unsigned short* stype) {
270   DCHECK(npp_functions_ != 0);
271   DCHECK(npp_functions_->newstream != 0);
272   if (npp_functions_->newstream != 0) {
273       return npp_functions_->newstream(npp_, type, stream, seekable, stype);
274   }
275   return NPERR_INVALID_FUNCTABLE_ERROR;
276 }
277 
NPP_DestroyStream(NPStream * stream,NPReason reason)278 NPError PluginInstance::NPP_DestroyStream(NPStream* stream, NPReason reason) {
279   DCHECK(npp_functions_ != 0);
280   DCHECK(npp_functions_->destroystream != 0);
281 
282   if (stream == NULL || !IsValidStream(stream) || (stream->ndata == NULL))
283     return NPERR_INVALID_INSTANCE_ERROR;
284 
285   if (npp_functions_->destroystream != 0) {
286     NPError result = npp_functions_->destroystream(npp_, stream, reason);
287     stream->ndata = NULL;
288     return result;
289   }
290   return NPERR_INVALID_FUNCTABLE_ERROR;
291 }
292 
NPP_WriteReady(NPStream * stream)293 int PluginInstance::NPP_WriteReady(NPStream* stream) {
294   DCHECK(npp_functions_ != 0);
295   DCHECK(npp_functions_->writeready != 0);
296   if (npp_functions_->writeready != 0) {
297     return npp_functions_->writeready(npp_, stream);
298   }
299   return 0;
300 }
301 
NPP_Write(NPStream * stream,int offset,int len,void * buffer)302 int PluginInstance::NPP_Write(NPStream* stream,
303                               int offset,
304                               int len,
305                               void* buffer) {
306   DCHECK(npp_functions_ != 0);
307   DCHECK(npp_functions_->write != 0);
308   if (npp_functions_->write != 0) {
309     return npp_functions_->write(npp_, stream, offset, len, buffer);
310   }
311   return 0;
312 }
313 
NPP_StreamAsFile(NPStream * stream,const char * fname)314 void PluginInstance::NPP_StreamAsFile(NPStream* stream, const char* fname) {
315   DCHECK(npp_functions_ != 0);
316   DCHECK(npp_functions_->asfile != 0);
317   if (npp_functions_->asfile != 0) {
318     npp_functions_->asfile(npp_, stream, fname);
319   }
320 
321   // Creating a temporary FilePath instance on the stack as the explicit
322   // FilePath constructor with StringType as an argument causes a compiler
323   // error when invoked via vector push back.
324   base::FilePath file_name = base::FilePath::FromUTF8Unsafe(fname);
325   files_created_.push_back(file_name);
326 }
327 
NPP_URLNotify(const char * url,NPReason reason,void * notifyData)328 void PluginInstance::NPP_URLNotify(const char* url,
329                                    NPReason reason,
330                                    void* notifyData) {
331   DCHECK(npp_functions_ != 0);
332   DCHECK(npp_functions_->urlnotify != 0);
333   if (npp_functions_->urlnotify != 0) {
334     npp_functions_->urlnotify(npp_, url, reason, notifyData);
335   }
336 }
337 
NPP_GetValue(NPPVariable variable,void * value)338 NPError PluginInstance::NPP_GetValue(NPPVariable variable, void* value) {
339   DCHECK(npp_functions_ != 0);
340   // getvalue is NULL for Shockwave
341   if (npp_functions_->getvalue != 0) {
342     return npp_functions_->getvalue(npp_, variable, value);
343   }
344   return NPERR_INVALID_FUNCTABLE_ERROR;
345 }
346 
NPP_SetValue(NPNVariable variable,void * value)347 NPError PluginInstance::NPP_SetValue(NPNVariable variable, void* value) {
348   DCHECK(npp_functions_ != 0);
349   if (npp_functions_->setvalue != 0) {
350     return npp_functions_->setvalue(npp_, variable, value);
351   }
352   return NPERR_INVALID_FUNCTABLE_ERROR;
353 }
354 
NPP_HandleEvent(void * event)355 short PluginInstance::NPP_HandleEvent(void* event) {
356   DCHECK(npp_functions_ != 0);
357   DCHECK(npp_functions_->event != 0);
358   if (npp_functions_->event != 0) {
359     return npp_functions_->event(npp_, (void*)event);
360   }
361   return false;
362 }
363 
NPP_Print(NPPrint * platform_print)364 bool PluginInstance::NPP_Print(NPPrint* platform_print) {
365   DCHECK(npp_functions_ != 0);
366   if (npp_functions_->print != 0) {
367     npp_functions_->print(npp_, platform_print);
368     return true;
369   }
370   return false;
371 }
372 
NPP_URLRedirectNotify(const char * url,int32_t status,void * notify_data)373 void PluginInstance::NPP_URLRedirectNotify(const char* url, int32_t status,
374                                            void* notify_data) {
375   DCHECK(npp_functions_ != 0);
376   if (npp_functions_->urlredirectnotify != 0) {
377     npp_functions_->urlredirectnotify(npp_, url, status, notify_data);
378   }
379 }
380 
SendJavaScriptStream(const GURL & url,const std::string & result,bool success,int notify_id)381 void PluginInstance::SendJavaScriptStream(const GURL& url,
382                                           const std::string& result,
383                                           bool success,
384                                           int notify_id) {
385   bool notify;
386   void* notify_data;
387   GetNotifyData(notify_id, &notify, &notify_data);
388 
389   if (success) {
390     PluginStringStream *stream =
391         new PluginStringStream(this, url, notify, notify_data);
392     AddStream(stream);
393     stream->SendToPlugin(result, "text/html");
394   } else {
395     // NOTE: Sending an empty stream here will crash MacroMedia
396     // Flash 9.  Just send the URL Notify.
397     if (notify)
398       NPP_URLNotify(url.spec().c_str(), NPRES_DONE, notify_data);
399   }
400 }
401 
DidReceiveManualResponse(const GURL & url,const std::string & mime_type,const std::string & headers,uint32 expected_length,uint32 last_modified)402 void PluginInstance::DidReceiveManualResponse(const GURL& url,
403                                               const std::string& mime_type,
404                                               const std::string& headers,
405                                               uint32 expected_length,
406                                               uint32 last_modified) {
407   DCHECK(load_manually_);
408 
409   plugin_data_stream_ = CreateStream(-1, url, mime_type, 0);
410   plugin_data_stream_->DidReceiveResponse(mime_type, headers, expected_length,
411                                           last_modified, true);
412 }
413 
DidReceiveManualData(const char * buffer,int length)414 void PluginInstance::DidReceiveManualData(const char* buffer, int length) {
415   DCHECK(load_manually_);
416   if (plugin_data_stream_.get() != NULL) {
417     plugin_data_stream_->DidReceiveData(buffer, length, 0);
418   }
419 }
420 
DidFinishManualLoading()421 void PluginInstance::DidFinishManualLoading() {
422   DCHECK(load_manually_);
423   if (plugin_data_stream_.get() != NULL) {
424     plugin_data_stream_->DidFinishLoading(plugin_data_stream_->ResourceId());
425     plugin_data_stream_->Close(NPRES_DONE);
426     plugin_data_stream_ = NULL;
427   }
428 }
429 
DidManualLoadFail()430 void PluginInstance::DidManualLoadFail() {
431   DCHECK(load_manually_);
432   if (plugin_data_stream_.get() != NULL) {
433     plugin_data_stream_->DidFail(plugin_data_stream_->ResourceId());
434     plugin_data_stream_ = NULL;
435   }
436 }
437 
PluginThreadAsyncCall(void (* func)(void *),void * user_data)438 void PluginInstance::PluginThreadAsyncCall(void (*func)(void*),
439                                            void* user_data) {
440   message_loop_->PostTask(
441       FROM_HERE, base::Bind(&PluginInstance::OnPluginThreadAsyncCall, this,
442                             func, user_data));
443 }
444 
OnPluginThreadAsyncCall(void (* func)(void *),void * user_data)445 void PluginInstance::OnPluginThreadAsyncCall(void (*func)(void*),
446                                              void* user_data) {
447   // Do not invoke the callback if NPP_Destroy has already been invoked.
448   if (webplugin_)
449     func(user_data);
450 }
451 
ScheduleTimer(uint32 interval,NPBool repeat,void (* func)(NPP id,uint32 timer_id))452 uint32 PluginInstance::ScheduleTimer(uint32 interval,
453                                      NPBool repeat,
454                                      void (*func)(NPP id, uint32 timer_id)) {
455   // Use next timer id.
456   uint32 timer_id;
457   timer_id = next_timer_id_;
458   ++next_timer_id_;
459   DCHECK(next_timer_id_ != 0);
460 
461   // Record timer interval and repeat.
462   TimerInfo info;
463   info.interval = interval;
464   info.repeat = repeat ? true : false;
465   timers_[timer_id] = info;
466 
467   // Schedule the callback.
468   base::MessageLoop::current()->PostDelayedTask(
469       FROM_HERE,
470       base::Bind(&PluginInstance::OnTimerCall, this, func, npp_, timer_id),
471       base::TimeDelta::FromMilliseconds(interval));
472   return timer_id;
473 }
474 
UnscheduleTimer(uint32 timer_id)475 void PluginInstance::UnscheduleTimer(uint32 timer_id) {
476   // Remove info about the timer.
477   TimerMap::iterator it = timers_.find(timer_id);
478   if (it != timers_.end())
479     timers_.erase(it);
480 }
481 
482 #if !defined(OS_MACOSX)
PopUpContextMenu(NPMenu * menu)483 NPError PluginInstance::PopUpContextMenu(NPMenu* menu) {
484   NOTIMPLEMENTED();
485   return NPERR_GENERIC_ERROR;
486 }
487 #endif
488 
OnTimerCall(void (* func)(NPP id,uint32 timer_id),NPP id,uint32 timer_id)489 void PluginInstance::OnTimerCall(void (*func)(NPP id, uint32 timer_id),
490                                  NPP id,
491                                  uint32 timer_id) {
492   // Do not invoke callback if the timer has been unscheduled.
493   TimerMap::iterator it = timers_.find(timer_id);
494   if (it == timers_.end())
495     return;
496 
497   // Get all information about the timer before invoking the callback. The
498   // callback might unschedule the timer.
499   TimerInfo info = it->second;
500 
501   func(id, timer_id);
502 
503   // If the timer was unscheduled by the callback, just free up the timer id.
504   if (timers_.find(timer_id) == timers_.end())
505     return;
506 
507   // Reschedule repeating timers after invoking the callback so callback is not
508   // re-entered if it pumps the message loop.
509   if (info.repeat) {
510     base::MessageLoop::current()->PostDelayedTask(
511         FROM_HERE,
512         base::Bind(&PluginInstance::OnTimerCall, this, func, npp_, timer_id),
513         base::TimeDelta::FromMilliseconds(info.interval));
514   } else {
515     timers_.erase(it);
516   }
517 }
518 
PushPopupsEnabledState(bool enabled)519 void PluginInstance::PushPopupsEnabledState(bool enabled) {
520   popups_enabled_stack_.push(enabled);
521 }
522 
PopPopupsEnabledState()523 void PluginInstance::PopPopupsEnabledState() {
524   popups_enabled_stack_.pop();
525 }
526 
RequestRead(NPStream * stream,NPByteRange * range_list)527 void PluginInstance::RequestRead(NPStream* stream, NPByteRange* range_list) {
528   std::string range_info = "bytes=";
529 
530   while (range_list) {
531     range_info += base::IntToString(range_list->offset);
532     range_info.push_back('-');
533     range_info +=
534         base::IntToString(range_list->offset + range_list->length - 1);
535     range_list = range_list->next;
536     if (range_list)
537       range_info.push_back(',');
538   }
539 
540   if (plugin_data_stream_.get()) {
541     if (plugin_data_stream_->stream() == stream) {
542       webplugin_->CancelDocumentLoad();
543       plugin_data_stream_ = NULL;
544     }
545   }
546 
547   // The lifetime of a NPStream instance depends on the PluginStream instance
548   // which owns it. When a plugin invokes NPN_RequestRead on a seekable stream,
549   // we don't want to create a new stream when the corresponding response is
550   // received. We send over a cookie which represents the PluginStream
551   // instance which is sent back from the renderer when the response is
552   // received.
553   std::vector<scoped_refptr<PluginStream> >::iterator stream_index;
554   for (stream_index = open_streams_.begin();
555           stream_index != open_streams_.end(); ++stream_index) {
556     PluginStream* plugin_stream = stream_index->get();
557     if (plugin_stream->stream() == stream) {
558       // A stream becomes seekable the first time NPN_RequestRead
559       // is called on it.
560       plugin_stream->set_seekable(true);
561 
562       if (CommandLine::ForCurrentProcess()->HasSwitch(
563               switches::kDisableDirectNPAPIRequests)) {
564         pending_range_requests_[++next_range_request_id_] = plugin_stream;
565         webplugin_->InitiateHTTPRangeRequest(
566             stream->url, range_info.c_str(), next_range_request_id_);
567         return;
568       } else {
569         PluginStreamUrl* plugin_stream_url =
570             static_cast<PluginStreamUrl*>(plugin_stream);
571         plugin_stream_url->FetchRange(range_info);
572         return;
573       }
574     }
575   }
576   NOTREACHED();
577 }
578 
RequestURL(const char * url,const char * method,const char * target,const char * buf,unsigned int len,bool notify,void * notify_data)579 void PluginInstance::RequestURL(const char* url,
580                                 const char* method,
581                                 const char* target,
582                                 const char* buf,
583                                 unsigned int len,
584                                 bool notify,
585                                 void* notify_data) {
586   int notify_id = 0;
587   if (notify) {
588     notify_id = ++next_notify_id_;
589     pending_requests_[notify_id] = notify_data;
590   }
591 
592   webplugin_->HandleURLRequest(
593       url, method, target, buf, len, notify_id, popups_allowed(),
594       notify ? handles_url_redirects_ : false);
595 }
596 
ConvertPoint(double source_x,double source_y,NPCoordinateSpace source_space,double * dest_x,double * dest_y,NPCoordinateSpace dest_space)597 bool PluginInstance::ConvertPoint(double source_x, double source_y,
598                                   NPCoordinateSpace source_space,
599                                   double* dest_x, double* dest_y,
600                                   NPCoordinateSpace dest_space) {
601 #if defined(OS_MACOSX)
602   CGRect main_display_bounds = CGDisplayBounds(CGMainDisplayID());
603 
604   double flipped_screen_x = source_x;
605   double flipped_screen_y = source_y;
606   switch(source_space) {
607     case NPCoordinateSpacePlugin:
608       flipped_screen_x += plugin_origin_.x();
609       flipped_screen_y += plugin_origin_.y();
610       break;
611     case NPCoordinateSpaceWindow:
612       flipped_screen_x += containing_window_frame_.x();
613       flipped_screen_y = containing_window_frame_.height() - source_y +
614           containing_window_frame_.y();
615       break;
616     case NPCoordinateSpaceFlippedWindow:
617       flipped_screen_x += containing_window_frame_.x();
618       flipped_screen_y += containing_window_frame_.y();
619       break;
620     case NPCoordinateSpaceScreen:
621       flipped_screen_y = main_display_bounds.size.height - flipped_screen_y;
622       break;
623     case NPCoordinateSpaceFlippedScreen:
624       break;
625     default:
626       NOTREACHED();
627       return false;
628   }
629 
630   double target_x = flipped_screen_x;
631   double target_y = flipped_screen_y;
632   switch(dest_space) {
633     case NPCoordinateSpacePlugin:
634       target_x -= plugin_origin_.x();
635       target_y -= plugin_origin_.y();
636       break;
637     case NPCoordinateSpaceWindow:
638       target_x -= containing_window_frame_.x();
639       target_y -= containing_window_frame_.y();
640       target_y = containing_window_frame_.height() - target_y;
641       break;
642     case NPCoordinateSpaceFlippedWindow:
643       target_x -= containing_window_frame_.x();
644       target_y -= containing_window_frame_.y();
645       break;
646     case NPCoordinateSpaceScreen:
647       target_y = main_display_bounds.size.height - flipped_screen_y;
648       break;
649     case NPCoordinateSpaceFlippedScreen:
650       break;
651     default:
652       NOTREACHED();
653       return false;
654   }
655 
656   if (dest_x)
657     *dest_x = target_x;
658   if (dest_y)
659     *dest_y = target_y;
660   return true;
661 #else
662   NOTIMPLEMENTED();
663   return false;
664 #endif
665 }
666 
GetNotifyData(int notify_id,bool * notify,void ** notify_data)667 void PluginInstance::GetNotifyData(int notify_id,
668                                    bool* notify,
669                                    void** notify_data) {
670   PendingRequestMap::iterator iter = pending_requests_.find(notify_id);
671   if (iter != pending_requests_.end()) {
672     *notify = true;
673     *notify_data = iter->second;
674     pending_requests_.erase(iter);
675   } else {
676     *notify = false;
677     *notify_data = NULL;
678   }
679 }
680 
URLRedirectResponse(bool allow,void * notify_data)681 void PluginInstance::URLRedirectResponse(bool allow, void* notify_data) {
682   // The notify_data passed in allows us to identify the matching stream.
683   std::vector<scoped_refptr<PluginStream> >::iterator stream_index;
684   for (stream_index = open_streams_.begin();
685           stream_index != open_streams_.end(); ++stream_index) {
686     PluginStream* plugin_stream = stream_index->get();
687     if (plugin_stream->notify_data() == notify_data) {
688       PluginStreamUrl* plugin_stream_url =
689           static_cast<PluginStreamUrl*>(plugin_stream);
690       plugin_stream_url->URLRedirectResponse(allow);
691       break;
692     }
693   }
694 }
695 
696 }  // namespace content
697