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1 // Copyright (c) 2010 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 #import <Cocoa/Cocoa.h> | |
6 #import <QuartzCore/QuartzCore.h> | |
7 | |
8 #include "webkit/glue/plugins/webplugin_delegate_impl.h" | |
9 | |
10 #include <string> | |
11 #include <unistd.h> | |
12 #include <set> | |
13 | |
14 #include "base/file_util.h" | |
15 #include "base/message_loop.h" | |
16 #include "base/metrics/stats_counters.h" | |
17 #include "base/scoped_ptr.h" | |
18 #include "base/string_util.h" | |
19 #include "base/utf_string_conversions.h" | |
20 #include "base/sys_string_conversions.h" | |
21 #include "third_party/WebKit/WebKit/chromium/public/WebInputEvent.h" | |
22 #include "webkit/glue/plugins/plugin_instance.h" | |
23 #include "webkit/glue/plugins/plugin_lib.h" | |
24 #include "webkit/glue/plugins/plugin_list.h" | |
25 #include "webkit/glue/plugins/plugin_stream_url.h" | |
26 #include "webkit/glue/plugins/plugin_web_event_converter_mac.h" | |
27 #include "webkit/glue/plugins/webplugin.h" | |
28 #include "webkit/glue/plugins/webplugin_accelerated_surface_mac.h" | |
29 #include "webkit/glue/webkit_glue.h" | |
30 | |
31 #ifndef NP_NO_CARBON | |
32 #include "webkit/glue/plugins/carbon_plugin_window_tracker_mac.h" | |
33 #endif | |
34 | |
35 #ifndef NP_NO_QUICKDRAW | |
36 #include "webkit/glue/plugins/quickdraw_drawing_manager_mac.h" | |
37 #endif | |
38 | |
39 using webkit_glue::WebPlugin; | |
40 using webkit_glue::WebPluginDelegate; | |
41 using webkit_glue::WebPluginResourceClient; | |
42 using WebKit::WebCursorInfo; | |
43 using WebKit::WebKeyboardEvent; | |
44 using WebKit::WebInputEvent; | |
45 using WebKit::WebMouseEvent; | |
46 using WebKit::WebMouseWheelEvent; | |
47 | |
48 const int kCoreAnimationRedrawPeriodMs = 10; // 100 Hz | |
49 | |
50 // Important implementation notes: The Mac definition of NPAPI, particularly | |
51 // the distinction between windowed and windowless modes, differs from the | |
52 // Windows and Linux definitions. Most of those differences are | |
53 // accomodated by the WebPluginDelegate class. | |
54 | |
55 namespace { | |
56 | |
57 WebPluginDelegateImpl* g_active_delegate; | |
58 | |
59 // Helper to simplify correct usage of g_active_delegate. Instantiating will | |
60 // set the active delegate to |delegate| for the lifetime of the object, then | |
61 // NULL when it goes out of scope. | |
62 class ScopedActiveDelegate { | |
63 public: | |
64 explicit ScopedActiveDelegate(WebPluginDelegateImpl* delegate) { | |
65 g_active_delegate = delegate; | |
66 } | |
67 ~ScopedActiveDelegate() { | |
68 g_active_delegate = NULL; | |
69 } | |
70 private: | |
71 DISALLOW_COPY_AND_ASSIGN(ScopedActiveDelegate); | |
72 }; | |
73 | |
74 #ifndef NP_NO_CARBON | |
75 // Timer periods for sending idle events to Carbon plugins. The visible value | |
76 // (50Hz) matches both Safari and Firefox. The hidden value (8Hz) matches | |
77 // Firefox; according to https://bugzilla.mozilla.org/show_bug.cgi?id=525533 | |
78 // going lower than that causes issues. | |
79 const int kVisibleIdlePeriodMs = 20; // (50Hz) | |
80 const int kHiddenIdlePeriodMs = 125; // (8Hz) | |
81 | |
82 class CarbonIdleEventSource { | |
83 public: | |
84 // Returns the shared Carbon idle event source. | |
85 static CarbonIdleEventSource* SharedInstance() { | |
86 DCHECK(MessageLoop::current()->type() == MessageLoop::TYPE_UI); | |
87 static CarbonIdleEventSource* event_source = new CarbonIdleEventSource(); | |
88 return event_source; | |
89 } | |
90 | |
91 // Registers the plugin delegate as interested in receiving idle events at | |
92 // a rate appropriate for the given visibility. A delegate can safely be | |
93 // re-registered any number of times, with the latest registration winning. | |
94 void RegisterDelegate(WebPluginDelegateImpl* delegate, bool visible) { | |
95 if (visible) { | |
96 visible_delegates_->RegisterDelegate(delegate); | |
97 hidden_delegates_->UnregisterDelegate(delegate); | |
98 } else { | |
99 hidden_delegates_->RegisterDelegate(delegate); | |
100 visible_delegates_->UnregisterDelegate(delegate); | |
101 } | |
102 } | |
103 | |
104 // Removes the plugin delegate from the list of plugins receiving idle events. | |
105 void UnregisterDelegate(WebPluginDelegateImpl* delegate) { | |
106 visible_delegates_->UnregisterDelegate(delegate); | |
107 hidden_delegates_->UnregisterDelegate(delegate); | |
108 } | |
109 | |
110 private: | |
111 class VisibilityGroup { | |
112 public: | |
113 explicit VisibilityGroup(int timer_period) | |
114 : timer_period_(timer_period), iterator_(delegates_.end()) {} | |
115 | |
116 // Adds |delegate| to this visibility group. | |
117 void RegisterDelegate(WebPluginDelegateImpl* delegate) { | |
118 if (delegates_.empty()) { | |
119 timer_.Start(base::TimeDelta::FromMilliseconds(timer_period_), | |
120 this, &VisibilityGroup::SendIdleEvents); | |
121 } | |
122 delegates_.insert(delegate); | |
123 } | |
124 | |
125 // Removes |delegate| from this visibility group. | |
126 void UnregisterDelegate(WebPluginDelegateImpl* delegate) { | |
127 // If a plugin changes visibility during idle event handling, it | |
128 // may be removed from this set while SendIdleEvents is still iterating; | |
129 // if that happens and it's next on the list, increment the iterator | |
130 // before erasing so that the iteration won't be corrupted. | |
131 if ((iterator_ != delegates_.end()) && (*iterator_ == delegate)) | |
132 ++iterator_; | |
133 size_t removed = delegates_.erase(delegate); | |
134 if (removed > 0 && delegates_.empty()) | |
135 timer_.Stop(); | |
136 } | |
137 | |
138 private: | |
139 // Fires off idle events for each delegate in the group. | |
140 void SendIdleEvents() { | |
141 for (iterator_ = delegates_.begin(); iterator_ != delegates_.end();) { | |
142 // Pre-increment so that the skip logic in UnregisterDelegates works. | |
143 WebPluginDelegateImpl* delegate = *(iterator_++); | |
144 delegate->FireIdleEvent(); | |
145 } | |
146 } | |
147 | |
148 int timer_period_; | |
149 base::RepeatingTimer<VisibilityGroup> timer_; | |
150 std::set<WebPluginDelegateImpl*> delegates_; | |
151 std::set<WebPluginDelegateImpl*>::iterator iterator_; | |
152 }; | |
153 | |
154 CarbonIdleEventSource() | |
155 : visible_delegates_(new VisibilityGroup(kVisibleIdlePeriodMs)), | |
156 hidden_delegates_(new VisibilityGroup(kHiddenIdlePeriodMs)) {} | |
157 | |
158 scoped_ptr<VisibilityGroup> visible_delegates_; | |
159 scoped_ptr<VisibilityGroup> hidden_delegates_; | |
160 | |
161 DISALLOW_COPY_AND_ASSIGN(CarbonIdleEventSource); | |
162 }; | |
163 #endif // !NP_NO_CARBON | |
164 | |
165 } // namespace | |
166 | |
167 // Helper to build and maintain a model of a drag entering the plugin but not | |
168 // starting there. See explanation in PlatformHandleInputEvent. | |
169 class ExternalDragTracker { | |
170 public: | |
171 ExternalDragTracker() : pressed_buttons_(0) {} | |
172 | |
173 // Returns true if an external drag is in progress. | |
174 bool IsDragInProgress() { return pressed_buttons_ != 0; }; | |
175 | |
176 // Returns true if the given event appears to be related to an external drag. | |
177 bool EventIsRelatedToDrag(const WebInputEvent& event); | |
178 | |
179 // Updates the tracking of whether an external drag is in progress--and if | |
180 // so what buttons it involves--based on the given event. | |
181 void UpdateDragStateFromEvent(const WebInputEvent& event); | |
182 | |
183 private: | |
184 // Returns the mask for just the button state in a WebInputEvent's modifiers. | |
185 static int WebEventButtonModifierMask(); | |
186 | |
187 // The WebInputEvent modifier flags for any buttons that were down when an | |
188 // external drag entered the plugin, and which and are still down now. | |
189 int pressed_buttons_; | |
190 | |
191 DISALLOW_COPY_AND_ASSIGN(ExternalDragTracker); | |
192 }; | |
193 | |
194 void ExternalDragTracker::UpdateDragStateFromEvent(const WebInputEvent& event) { | |
195 switch (event.type) { | |
196 case WebInputEvent::MouseEnter: | |
197 pressed_buttons_ = event.modifiers & WebEventButtonModifierMask(); | |
198 break; | |
199 case WebInputEvent::MouseUp: { | |
200 const WebMouseEvent* mouse_event = | |
201 static_cast<const WebMouseEvent*>(&event); | |
202 if (mouse_event->button == WebMouseEvent::ButtonLeft) | |
203 pressed_buttons_ &= ~WebInputEvent::LeftButtonDown; | |
204 if (mouse_event->button == WebMouseEvent::ButtonMiddle) | |
205 pressed_buttons_ &= ~WebInputEvent::MiddleButtonDown; | |
206 if (mouse_event->button == WebMouseEvent::ButtonRight) | |
207 pressed_buttons_ &= ~WebInputEvent::RightButtonDown; | |
208 break; | |
209 } | |
210 default: | |
211 break; | |
212 } | |
213 } | |
214 | |
215 bool ExternalDragTracker::EventIsRelatedToDrag(const WebInputEvent& event) { | |
216 const WebMouseEvent* mouse_event = static_cast<const WebMouseEvent*>(&event); | |
217 switch (event.type) { | |
218 case WebInputEvent::MouseUp: | |
219 // We only care about release of buttons that were part of the drag. | |
220 return ((mouse_event->button == WebMouseEvent::ButtonLeft && | |
221 (pressed_buttons_ & WebInputEvent::LeftButtonDown)) || | |
222 (mouse_event->button == WebMouseEvent::ButtonMiddle && | |
223 (pressed_buttons_ & WebInputEvent::MiddleButtonDown)) || | |
224 (mouse_event->button == WebMouseEvent::ButtonRight && | |
225 (pressed_buttons_ & WebInputEvent::RightButtonDown))); | |
226 case WebInputEvent::MouseEnter: | |
227 return (event.modifiers & WebEventButtonModifierMask()) != 0; | |
228 case WebInputEvent::MouseLeave: | |
229 case WebInputEvent::MouseMove: { | |
230 int event_buttons = (event.modifiers & WebEventButtonModifierMask()); | |
231 return (pressed_buttons_ && | |
232 pressed_buttons_ == event_buttons); | |
233 } | |
234 default: | |
235 return false; | |
236 } | |
237 return false; | |
238 } | |
239 | |
240 int ExternalDragTracker::WebEventButtonModifierMask() { | |
241 return WebInputEvent::LeftButtonDown | | |
242 WebInputEvent::RightButtonDown | | |
243 WebInputEvent::MiddleButtonDown; | |
244 } | |
245 | |
246 #pragma mark - | |
247 #pragma mark Core WebPluginDelegate implementation | |
248 | |
249 WebPluginDelegateImpl::WebPluginDelegateImpl( | |
250 gfx::PluginWindowHandle containing_view, | |
251 NPAPI::PluginInstance *instance) | |
252 : windowed_handle_(NULL), | |
253 // all Mac plugins are "windowless" in the Windows/X11 sense | |
254 windowless_(true), | |
255 plugin_(NULL), | |
256 instance_(instance), | |
257 parent_(containing_view), | |
258 quirks_(0), | |
259 buffer_context_(NULL), | |
260 layer_(nil), | |
261 surface_(NULL), | |
262 renderer_(nil), | |
263 containing_window_has_focus_(false), | |
264 initial_window_focus_(false), | |
265 container_is_visible_(false), | |
266 have_called_set_window_(false), | |
267 ime_enabled_(false), | |
268 external_drag_tracker_(new ExternalDragTracker()), | |
269 handle_event_depth_(0), | |
270 first_set_window_call_(true), | |
271 plugin_has_focus_(false), | |
272 has_webkit_focus_(false), | |
273 containing_view_has_focus_(true), | |
274 creation_succeeded_(false) { | |
275 memset(&window_, 0, sizeof(window_)); | |
276 #ifndef NP_NO_CARBON | |
277 memset(&np_cg_context_, 0, sizeof(np_cg_context_)); | |
278 #endif | |
279 #ifndef NP_NO_QUICKDRAW | |
280 memset(&qd_port_, 0, sizeof(qd_port_)); | |
281 #endif | |
282 instance->set_windowless(true); | |
283 } | |
284 | |
285 WebPluginDelegateImpl::~WebPluginDelegateImpl() { | |
286 DestroyInstance(); | |
287 | |
288 #ifndef NP_NO_CARBON | |
289 if (np_cg_context_.window) { | |
290 CarbonPluginWindowTracker::SharedInstance()->DestroyDummyWindowForDelegate( | |
291 this, reinterpret_cast<WindowRef>(np_cg_context_.window)); | |
292 } | |
293 #endif | |
294 } | |
295 | |
296 bool WebPluginDelegateImpl::PlatformInitialize() { | |
297 // Don't set a NULL window handle on destroy for Mac plugins. This matches | |
298 // Safari and other Mac browsers (see PluginView::stop() in PluginView.cpp, | |
299 // where code to do so is surrounded by an #ifdef that excludes Mac OS X, or | |
300 // destroyPlugin in WebNetscapePluginView.mm, for examples). | |
301 quirks_ |= PLUGIN_QUIRK_DONT_SET_NULL_WINDOW_HANDLE_ON_DESTROY; | |
302 | |
303 // Mac plugins don't expect to be unloaded, and they don't always do so | |
304 // cleanly, so don't unload them at shutdown. | |
305 instance()->plugin_lib()->PreventLibraryUnload(); | |
306 | |
307 #ifndef NP_NO_QUICKDRAW | |
308 if (instance()->drawing_model() == NPDrawingModelQuickDraw) { | |
309 // For some QuickDraw plugins, we can sometimes get away with giving them | |
310 // a port pointing to a pixel buffer instead of a our actual dummy window. | |
311 // This gives us much better frame rates, because the window scraping we | |
312 // normally use is very slow. | |
313 // This breaks down if the plugin does anything complicated with the port | |
314 // (as QuickTime seems to during event handling, and sometimes when painting | |
315 // its controls), so we switch on the fly as necessary. (It might be | |
316 // possible to interpose sufficiently that we wouldn't have to switch back | |
317 // and forth, but the current approach gets us most of the benefit.) | |
318 // We can't do this at all with plugins that bypass the port entirely and | |
319 // attaches their own surface to the window. | |
320 // TODO(stuartmorgan): Test other QuickDraw plugins that we support and | |
321 // see if any others can use the fast path. | |
322 const WebPluginInfo& plugin_info = instance_->plugin_lib()->plugin_info(); | |
323 if (plugin_info.name.find(ASCIIToUTF16("QuickTime")) != string16::npos) | |
324 quirks_ |= PLUGIN_QUIRK_ALLOW_FASTER_QUICKDRAW_PATH; | |
325 } | |
326 #endif | |
327 | |
328 #ifndef NP_NO_CARBON | |
329 if (instance()->event_model() == NPEventModelCarbon) { | |
330 // Create a stand-in for the browser window so that the plugin will have | |
331 // a non-NULL WindowRef to which it can refer. | |
332 CarbonPluginWindowTracker* window_tracker = | |
333 CarbonPluginWindowTracker::SharedInstance(); | |
334 np_cg_context_.window = window_tracker->CreateDummyWindowForDelegate(this); | |
335 np_cg_context_.context = NULL; | |
336 UpdateDummyWindowBounds(gfx::Point(0, 0)); | |
337 } | |
338 #endif | |
339 | |
340 NPDrawingModel drawing_model = instance()->drawing_model(); | |
341 switch (drawing_model) { | |
342 #ifndef NP_NO_QUICKDRAW | |
343 case NPDrawingModelQuickDraw: | |
344 if (instance()->event_model() != NPEventModelCarbon) | |
345 return false; | |
346 qd_manager_.reset(new QuickDrawDrawingManager()); | |
347 qd_manager_->SetPluginWindow( | |
348 reinterpret_cast<WindowRef>(np_cg_context_.window)); | |
349 qd_port_.port = qd_manager_->port(); | |
350 window_.window = &qd_port_; | |
351 window_.type = NPWindowTypeDrawable; | |
352 break; | |
353 #endif | |
354 case NPDrawingModelCoreGraphics: | |
355 #ifndef NP_NO_CARBON | |
356 if (instance()->event_model() == NPEventModelCarbon) | |
357 window_.window = &np_cg_context_; | |
358 #endif | |
359 window_.type = NPWindowTypeDrawable; | |
360 break; | |
361 case NPDrawingModelCoreAnimation: | |
362 case NPDrawingModelInvalidatingCoreAnimation: { | |
363 if (instance()->event_model() != NPEventModelCocoa) | |
364 return false; | |
365 window_.type = NPWindowTypeDrawable; | |
366 // Ask the plug-in for the CALayer it created for rendering content. | |
367 // Create a surface to host it, and request a "window" handle to identify | |
368 // the surface. | |
369 CALayer* layer = nil; | |
370 NPError err = instance()->NPP_GetValue(NPPVpluginCoreAnimationLayer, | |
371 reinterpret_cast<void*>(&layer)); | |
372 if (!err) { | |
373 if (drawing_model == NPDrawingModelCoreAnimation) { | |
374 // Create the timer; it will be started when we get a window handle. | |
375 redraw_timer_.reset(new base::RepeatingTimer<WebPluginDelegateImpl>); | |
376 } | |
377 layer_ = layer; | |
378 surface_ = plugin_->GetAcceleratedSurface(); | |
379 | |
380 // If surface initialization fails for some reason, just continue | |
381 // without any drawing; returning false would be a more confusing user | |
382 // experience (since it triggers a missing plugin placeholder). | |
383 if (surface_->context()) { | |
384 renderer_ = [[CARenderer rendererWithCGLContext:surface_->context() | |
385 options:NULL] retain]; | |
386 [renderer_ setLayer:layer_]; | |
387 } | |
388 plugin_->BindFakePluginWindowHandle(false); | |
389 } | |
390 break; | |
391 } | |
392 default: | |
393 NOTREACHED(); | |
394 break; | |
395 } | |
396 | |
397 // Let the WebPlugin know that we are windowless (unless this is a | |
398 // Core Animation plugin, in which case BindFakePluginWindowHandle will take | |
399 // care of setting up the appropriate window handle). | |
400 if (!layer_) | |
401 plugin_->SetWindow(NULL); | |
402 | |
403 #ifndef NP_NO_CARBON | |
404 // If the plugin wants Carbon events, hook up to the source of idle events. | |
405 if (instance()->event_model() == NPEventModelCarbon) | |
406 UpdateIdleEventRate(); | |
407 #endif | |
408 | |
409 // QuickTime (in QD mode only) can crash if it gets other calls (e.g., | |
410 // NPP_Write) before it gets a SetWindow call, so call SetWindow (with a 0x0 | |
411 // rect) immediately. | |
412 #ifndef NP_NO_QUICKDRAW | |
413 if (instance()->drawing_model() == NPDrawingModelQuickDraw) { | |
414 const WebPluginInfo& plugin_info = instance_->plugin_lib()->plugin_info(); | |
415 if (plugin_info.name.find(ASCIIToUTF16("QuickTime")) != string16::npos) | |
416 WindowlessSetWindow(); | |
417 } | |
418 #endif | |
419 | |
420 return true; | |
421 } | |
422 | |
423 void WebPluginDelegateImpl::PlatformDestroyInstance() { | |
424 #ifndef NP_NO_CARBON | |
425 if (instance()->event_model() == NPEventModelCarbon) | |
426 CarbonIdleEventSource::SharedInstance()->UnregisterDelegate(this); | |
427 #endif | |
428 if (redraw_timer_.get()) | |
429 redraw_timer_->Stop(); | |
430 [renderer_ release]; | |
431 renderer_ = nil; | |
432 layer_ = nil; | |
433 } | |
434 | |
435 void WebPluginDelegateImpl::UpdateGeometryAndContext( | |
436 const gfx::Rect& window_rect, const gfx::Rect& clip_rect, | |
437 CGContextRef context) { | |
438 buffer_context_ = context; | |
439 #ifndef NP_NO_CARBON | |
440 if (instance()->event_model() == NPEventModelCarbon) { | |
441 // Update the structure that is passed to Carbon+CoreGraphics plugins in | |
442 // NPP_SetWindow before calling UpdateGeometry, since that will trigger an | |
443 // NPP_SetWindow call if the geometry changes (which is the only time the | |
444 // context would be different), and some plugins (e.g., Flash) have an | |
445 // internal cache of the context that they only update when NPP_SetWindow | |
446 // is called. | |
447 np_cg_context_.context = context; | |
448 } | |
449 #endif | |
450 #ifndef NP_NO_QUICKDRAW | |
451 if (instance()->drawing_model() == NPDrawingModelQuickDraw) | |
452 qd_manager_->SetTargetContext(context, window_rect.size()); | |
453 #endif | |
454 UpdateGeometry(window_rect, clip_rect); | |
455 } | |
456 | |
457 void WebPluginDelegateImpl::Paint(CGContextRef context, const gfx::Rect& rect) { | |
458 WindowlessPaint(context, rect); | |
459 | |
460 #ifndef NP_NO_QUICKDRAW | |
461 // Paint events are our cue to dump the current plugin bits into the buffer | |
462 // context if we are dealing with a QuickDraw plugin. | |
463 if (instance()->drawing_model() == NPDrawingModelQuickDraw) { | |
464 qd_manager_->UpdateContext(); | |
465 } | |
466 #endif | |
467 } | |
468 | |
469 void WebPluginDelegateImpl::Print(CGContextRef context) { | |
470 NOTIMPLEMENTED(); | |
471 } | |
472 | |
473 bool WebPluginDelegateImpl::PlatformHandleInputEvent( | |
474 const WebInputEvent& event, WebCursorInfo* cursor_info) { | |
475 DCHECK(cursor_info != NULL); | |
476 | |
477 // If we get an event before we've set up the plugin, bail. | |
478 if (!have_called_set_window_) | |
479 return false; | |
480 #ifndef NP_NO_CARBON | |
481 if (instance()->event_model() == NPEventModelCarbon && | |
482 !np_cg_context_.context) { | |
483 return false; | |
484 } | |
485 #endif | |
486 | |
487 if (WebInputEvent::isMouseEventType(event.type) || | |
488 event.type == WebInputEvent::MouseWheel) { | |
489 // Check our plugin location before we send the event to the plugin, just | |
490 // in case we somehow missed a plugin frame change. | |
491 const WebMouseEvent* mouse_event = | |
492 static_cast<const WebMouseEvent*>(&event); | |
493 gfx::Point content_origin( | |
494 mouse_event->globalX - mouse_event->x - window_rect_.x(), | |
495 mouse_event->globalY - mouse_event->y - window_rect_.y()); | |
496 if (content_origin.x() != content_area_origin_.x() || | |
497 content_origin.y() != content_area_origin_.y()) { | |
498 DLOG(WARNING) << "Stale plugin content area location: " | |
499 << content_area_origin_ << " instead of " | |
500 << content_origin; | |
501 SetContentAreaOrigin(content_origin); | |
502 } | |
503 | |
504 current_windowless_cursor_.GetCursorInfo(cursor_info); | |
505 } | |
506 | |
507 #ifndef NP_NO_CARBON | |
508 if (instance()->event_model() == NPEventModelCarbon) { | |
509 #ifndef NP_NO_QUICKDRAW | |
510 if (instance()->drawing_model() == NPDrawingModelQuickDraw) { | |
511 if (quirks_ & PLUGIN_QUIRK_ALLOW_FASTER_QUICKDRAW_PATH) { | |
512 // Mouse event handling doesn't work correctly in the fast path mode, | |
513 // so any time we get a mouse event turn the fast path off, but set a | |
514 // time to switch it on again (we don't rely just on MouseLeave because | |
515 // we don't want poor performance in the case of clicking the play | |
516 // button and then leaving the mouse there). | |
517 // This isn't perfect (specifically, click-and-hold doesn't seem to work | |
518 // if the fast path is on), but the slight regression is worthwhile | |
519 // for the improved framerates. | |
520 if (WebInputEvent::isMouseEventType(event.type)) { | |
521 if (event.type == WebInputEvent::MouseLeave) { | |
522 SetQuickDrawFastPathEnabled(true); | |
523 } else { | |
524 SetQuickDrawFastPathEnabled(false); | |
525 } | |
526 // Make sure the plugin wasn't destroyed during the switch. | |
527 if (!instance()) | |
528 return false; | |
529 } | |
530 } | |
531 | |
532 qd_manager_->MakePortCurrent(); | |
533 } | |
534 #endif | |
535 | |
536 if (event.type == WebInputEvent::MouseMove) { | |
537 return true; // The recurring FireIdleEvent will send null events. | |
538 } | |
539 } | |
540 #endif | |
541 | |
542 ScopedActiveDelegate active_delegate(this); | |
543 | |
544 // Create the plugin event structure. | |
545 NPEventModel event_model = instance()->event_model(); | |
546 scoped_ptr<PluginWebEventConverter> event_converter( | |
547 PluginWebEventConverterFactory::CreateConverterForModel(event_model)); | |
548 if (!(event_converter.get() && event_converter->InitWithEvent(event))) { | |
549 // Silently consume any keyboard event types that we don't handle, so that | |
550 // they don't fall through to the page. | |
551 if (WebInputEvent::isKeyboardEventType(event.type)) | |
552 return true; | |
553 return false; | |
554 } | |
555 void* plugin_event = event_converter->plugin_event(); | |
556 | |
557 if (instance()->event_model() == NPEventModelCocoa) { | |
558 // We recieve events related to drags starting outside the plugin, but the | |
559 // NPAPI Cocoa event model spec says plugins shouldn't receive them, so | |
560 // filter them out. | |
561 // If we add a page capture mode at the WebKit layer (like the plugin | |
562 // capture mode that handles drags starting inside) this can be removed. | |
563 bool drag_related = external_drag_tracker_->EventIsRelatedToDrag(event); | |
564 external_drag_tracker_->UpdateDragStateFromEvent(event); | |
565 if (drag_related) { | |
566 if (event.type == WebInputEvent::MouseUp && | |
567 !external_drag_tracker_->IsDragInProgress()) { | |
568 // When an external drag ends, we need to synthesize a MouseEntered. | |
569 NPCocoaEvent enter_event = *(static_cast<NPCocoaEvent*>(plugin_event)); | |
570 enter_event.type = NPCocoaEventMouseEntered; | |
571 NPAPI::ScopedCurrentPluginEvent event_scope(instance(), &enter_event); | |
572 instance()->NPP_HandleEvent(&enter_event); | |
573 } | |
574 return false; | |
575 } | |
576 } | |
577 | |
578 // Send the plugin the event. | |
579 scoped_ptr<NPAPI::ScopedCurrentPluginEvent> event_scope(NULL); | |
580 if (instance()->event_model() == NPEventModelCocoa) { | |
581 event_scope.reset(new NPAPI::ScopedCurrentPluginEvent( | |
582 instance(), static_cast<NPCocoaEvent*>(plugin_event))); | |
583 } | |
584 int16_t handle_response = instance()->NPP_HandleEvent(plugin_event); | |
585 bool handled = handle_response != kNPEventNotHandled; | |
586 | |
587 if (handled && event.type == WebInputEvent::KeyDown) { | |
588 // Update IME state as requested by the plugin. | |
589 SetImeEnabled(handle_response == kNPEventStartIME); | |
590 } | |
591 | |
592 // Plugins don't give accurate information about whether or not they handled | |
593 // events, so browsers on the Mac ignore the return value. | |
594 // Scroll events are the exception, since the Cocoa spec defines a meaning | |
595 // for the return value. | |
596 if (WebInputEvent::isMouseEventType(event.type)) { | |
597 handled = true; | |
598 } else if (WebInputEvent::isKeyboardEventType(event.type)) { | |
599 // For Command-key events, trust the return value since eating all menu | |
600 // shortcuts is not ideal. | |
601 // TODO(stuartmorgan): Implement the advanced key handling spec, and trust | |
602 // trust the key event return value from plugins that implement it. | |
603 if (!(event.modifiers & WebInputEvent::MetaKey)) | |
604 handled = true; | |
605 } | |
606 | |
607 return handled; | |
608 } | |
609 | |
610 void WebPluginDelegateImpl::InstallMissingPlugin() { | |
611 NOTIMPLEMENTED(); | |
612 } | |
613 | |
614 #pragma mark - | |
615 | |
616 void WebPluginDelegateImpl::WindowlessUpdateGeometry( | |
617 const gfx::Rect& window_rect, | |
618 const gfx::Rect& clip_rect) { | |
619 gfx::Rect old_clip_rect = clip_rect_; | |
620 cached_clip_rect_ = clip_rect; | |
621 if (container_is_visible_) // Remove check when cached_clip_rect_ is removed. | |
622 clip_rect_ = clip_rect; | |
623 bool clip_rect_changed = (clip_rect_ != old_clip_rect); | |
624 bool window_size_changed = (window_rect.size() != window_rect_.size()); | |
625 | |
626 bool force_set_window = false; | |
627 #ifndef NP_NO_QUICKDRAW | |
628 // In a QuickDraw plugin, a geometry update might have caused a port change; | |
629 // if so, we need to call SetWindow even if nothing else changed. | |
630 if (qd_manager_.get() && (qd_port_.port != qd_manager_->port())) { | |
631 qd_port_.port = qd_manager_->port(); | |
632 force_set_window = true; | |
633 } | |
634 #endif | |
635 | |
636 if (window_rect == window_rect_ && !clip_rect_changed && !force_set_window) | |
637 return; | |
638 | |
639 if (old_clip_rect.IsEmpty() != clip_rect_.IsEmpty()) { | |
640 PluginVisibilityChanged(); | |
641 } | |
642 | |
643 SetPluginRect(window_rect); | |
644 | |
645 #ifndef NP_NO_QUICKDRAW | |
646 if (window_size_changed && qd_manager_.get() && | |
647 qd_manager_->IsFastPathEnabled()) { | |
648 // If the window size has changed, we need to turn off the fast path so that | |
649 // the full redraw goes to the window and we get a correct baseline paint. | |
650 SetQuickDrawFastPathEnabled(false); | |
651 return; // SetQuickDrawFastPathEnabled will call SetWindow for us. | |
652 } | |
653 #endif | |
654 | |
655 if (window_size_changed || clip_rect_changed || force_set_window) | |
656 WindowlessSetWindow(); | |
657 } | |
658 | |
659 void WebPluginDelegateImpl::WindowlessPaint(gfx::NativeDrawingContext context, | |
660 const gfx::Rect& damage_rect) { | |
661 // If we get a paint event before we are completely set up (e.g., a nested | |
662 // call while the plugin is still in NPP_SetWindow), bail. | |
663 if (!have_called_set_window_ || !buffer_context_) | |
664 return; | |
665 DCHECK(buffer_context_ == context); | |
666 | |
667 static base::StatsRate plugin_paint("Plugin.Paint"); | |
668 base::StatsScope<base::StatsRate> scope(plugin_paint); | |
669 | |
670 // Plugin invalidates trigger asynchronous paints with the original | |
671 // invalidation rect; the plugin may be resized before the paint is handled, | |
672 // so we need to ensure that the damage rect is still sane. | |
673 const gfx::Rect paint_rect(damage_rect.Intersect( | |
674 gfx::Rect(0, 0, window_rect_.width(), window_rect_.height()))); | |
675 | |
676 ScopedActiveDelegate active_delegate(this); | |
677 | |
678 #ifndef NP_NO_QUICKDRAW | |
679 if (instance()->drawing_model() == NPDrawingModelQuickDraw) | |
680 qd_manager_->MakePortCurrent(); | |
681 #endif | |
682 | |
683 CGContextSaveGState(context); | |
684 | |
685 switch (instance()->event_model()) { | |
686 #ifndef NP_NO_CARBON | |
687 case NPEventModelCarbon: { | |
688 NPEvent paint_event = { 0 }; | |
689 paint_event.what = updateEvt; | |
690 paint_event.message = reinterpret_cast<uint32>(np_cg_context_.window); | |
691 paint_event.when = TickCount(); | |
692 instance()->NPP_HandleEvent(&paint_event); | |
693 break; | |
694 } | |
695 #endif | |
696 case NPEventModelCocoa: { | |
697 NPCocoaEvent paint_event; | |
698 memset(&paint_event, 0, sizeof(NPCocoaEvent)); | |
699 paint_event.type = NPCocoaEventDrawRect; | |
700 paint_event.data.draw.context = context; | |
701 paint_event.data.draw.x = paint_rect.x(); | |
702 paint_event.data.draw.y = paint_rect.y(); | |
703 paint_event.data.draw.width = paint_rect.width(); | |
704 paint_event.data.draw.height = paint_rect.height(); | |
705 instance()->NPP_HandleEvent(&paint_event); | |
706 break; | |
707 } | |
708 } | |
709 | |
710 // The backing buffer can change during the call to NPP_HandleEvent, in which | |
711 // case the old context is (or is about to be) invalid. | |
712 if (context == buffer_context_) | |
713 CGContextRestoreGState(context); | |
714 } | |
715 | |
716 void WebPluginDelegateImpl::WindowlessSetWindow() { | |
717 if (!instance()) | |
718 return; | |
719 | |
720 window_.x = 0; | |
721 window_.y = 0; | |
722 window_.height = window_rect_.height(); | |
723 window_.width = window_rect_.width(); | |
724 window_.clipRect.left = clip_rect_.x(); | |
725 window_.clipRect.top = clip_rect_.y(); | |
726 window_.clipRect.right = clip_rect_.x() + clip_rect_.width(); | |
727 window_.clipRect.bottom = clip_rect_.y() + clip_rect_.height(); | |
728 | |
729 NPError err = instance()->NPP_SetWindow(&window_); | |
730 | |
731 // Send an appropriate window focus event after the first SetWindow. | |
732 if (!have_called_set_window_) { | |
733 have_called_set_window_ = true; | |
734 SetWindowHasFocus(initial_window_focus_); | |
735 } | |
736 | |
737 #ifndef NP_NO_QUICKDRAW | |
738 if ((quirks_ & PLUGIN_QUIRK_ALLOW_FASTER_QUICKDRAW_PATH) && | |
739 !qd_manager_->IsFastPathEnabled() && !clip_rect_.IsEmpty()) { | |
740 // Give the plugin a few seconds to stabilize so we get a good initial paint | |
741 // to use as a baseline, then switch to the fast path. | |
742 fast_path_enable_tick_ = base::TimeTicks::Now() + | |
743 base::TimeDelta::FromSeconds(3); | |
744 } | |
745 #endif | |
746 | |
747 DCHECK(err == NPERR_NO_ERROR); | |
748 } | |
749 | |
750 #pragma mark - | |
751 | |
752 bool WebPluginDelegateImpl::WindowedCreatePlugin() { | |
753 NOTREACHED(); | |
754 return false; | |
755 } | |
756 | |
757 void WebPluginDelegateImpl::WindowedDestroyWindow() { | |
758 NOTREACHED(); | |
759 } | |
760 | |
761 bool WebPluginDelegateImpl::WindowedReposition(const gfx::Rect& window_rect, | |
762 const gfx::Rect& clip_rect) { | |
763 NOTREACHED(); | |
764 return false; | |
765 } | |
766 | |
767 void WebPluginDelegateImpl::WindowedSetWindow() { | |
768 NOTREACHED(); | |
769 } | |
770 | |
771 #pragma mark - | |
772 #pragma mark Mac Extensions | |
773 | |
774 void WebPluginDelegateImpl::PluginDidInvalidate() { | |
775 if (instance()->drawing_model() == NPDrawingModelInvalidatingCoreAnimation) | |
776 DrawLayerInSurface(); | |
777 } | |
778 | |
779 WebPluginDelegateImpl* WebPluginDelegateImpl::GetActiveDelegate() { | |
780 return g_active_delegate; | |
781 } | |
782 | |
783 void WebPluginDelegateImpl::SetWindowHasFocus(bool has_focus) { | |
784 // If we get a window focus event before calling SetWindow, just remember the | |
785 // states (WindowlessSetWindow will then send it on the first call). | |
786 if (!have_called_set_window_) { | |
787 initial_window_focus_ = has_focus; | |
788 return; | |
789 } | |
790 | |
791 if (has_focus == containing_window_has_focus_) | |
792 return; | |
793 containing_window_has_focus_ = has_focus; | |
794 | |
795 if (!has_focus) | |
796 SetImeEnabled(false); | |
797 | |
798 #ifndef NP_NO_QUICKDRAW | |
799 // Make sure controls repaint with the correct look. | |
800 if (quirks_ & PLUGIN_QUIRK_ALLOW_FASTER_QUICKDRAW_PATH) | |
801 SetQuickDrawFastPathEnabled(false); | |
802 #endif | |
803 | |
804 ScopedActiveDelegate active_delegate(this); | |
805 switch (instance()->event_model()) { | |
806 #ifndef NP_NO_CARBON | |
807 case NPEventModelCarbon: { | |
808 NPEvent focus_event = { 0 }; | |
809 focus_event.what = activateEvt; | |
810 if (has_focus) | |
811 focus_event.modifiers |= activeFlag; | |
812 focus_event.message = | |
813 reinterpret_cast<unsigned long>(np_cg_context_.window); | |
814 focus_event.when = TickCount(); | |
815 instance()->NPP_HandleEvent(&focus_event); | |
816 break; | |
817 } | |
818 #endif | |
819 case NPEventModelCocoa: { | |
820 NPCocoaEvent focus_event; | |
821 memset(&focus_event, 0, sizeof(focus_event)); | |
822 focus_event.type = NPCocoaEventWindowFocusChanged; | |
823 focus_event.data.focus.hasFocus = has_focus; | |
824 instance()->NPP_HandleEvent(&focus_event); | |
825 break; | |
826 } | |
827 } | |
828 } | |
829 | |
830 bool WebPluginDelegateImpl::PlatformSetPluginHasFocus(bool focused) { | |
831 if (!have_called_set_window_) | |
832 return false; | |
833 | |
834 if (!focused) | |
835 SetImeEnabled(false); | |
836 | |
837 ScopedActiveDelegate active_delegate(this); | |
838 | |
839 switch (instance()->event_model()) { | |
840 #ifndef NP_NO_CARBON | |
841 case NPEventModelCarbon: { | |
842 NPEvent focus_event = { 0 }; | |
843 if (focused) | |
844 focus_event.what = NPEventType_GetFocusEvent; | |
845 else | |
846 focus_event.what = NPEventType_LoseFocusEvent; | |
847 focus_event.when = TickCount(); | |
848 instance()->NPP_HandleEvent(&focus_event); | |
849 break; | |
850 } | |
851 #endif | |
852 case NPEventModelCocoa: { | |
853 NPCocoaEvent focus_event; | |
854 memset(&focus_event, 0, sizeof(focus_event)); | |
855 focus_event.type = NPCocoaEventFocusChanged; | |
856 focus_event.data.focus.hasFocus = focused; | |
857 instance()->NPP_HandleEvent(&focus_event); | |
858 break; | |
859 } | |
860 } | |
861 return true; | |
862 } | |
863 | |
864 void WebPluginDelegateImpl::SetContainerVisibility(bool is_visible) { | |
865 if (is_visible == container_is_visible_) | |
866 return; | |
867 container_is_visible_ = is_visible; | |
868 | |
869 // TODO(stuartmorgan): This is a temporary workarond for | |
870 // <http://crbug.com/34266>. When that is fixed, the cached_clip_rect_ code | |
871 // should all be removed. | |
872 if (is_visible) { | |
873 clip_rect_ = cached_clip_rect_; | |
874 } else { | |
875 clip_rect_.set_width(0); | |
876 clip_rect_.set_height(0); | |
877 } | |
878 | |
879 // If the plugin is changing visibility, let the plugin know. If it's scrolled | |
880 // off screen (i.e., cached_clip_rect_ is empty), then container visibility | |
881 // doesn't change anything. | |
882 if (!cached_clip_rect_.IsEmpty()) { | |
883 PluginVisibilityChanged(); | |
884 WindowlessSetWindow(); | |
885 } | |
886 | |
887 // When the plugin become visible, send an empty invalidate. If there were any | |
888 // pending invalidations this will trigger a paint event for the damaged | |
889 // region, and if not it's a no-op. This is necessary since higher levels | |
890 // that would normally do this weren't responsible for the clip_rect_ change). | |
891 if (!clip_rect_.IsEmpty()) | |
892 instance()->webplugin()->InvalidateRect(gfx::Rect()); | |
893 } | |
894 | |
895 void WebPluginDelegateImpl::WindowFrameChanged(const gfx::Rect& window_frame, | |
896 const gfx::Rect& view_frame) { | |
897 instance()->set_window_frame(window_frame); | |
898 SetContentAreaOrigin(gfx::Point(view_frame.x(), view_frame.y())); | |
899 } | |
900 | |
901 void WebPluginDelegateImpl::ImeCompositionConfirmed(const string16& text) { | |
902 if (instance()->event_model() != NPEventModelCocoa) { | |
903 DLOG(ERROR) << "IME text receieved in Carbon event model"; | |
904 return; | |
905 } | |
906 | |
907 NPCocoaEvent text_event; | |
908 memset(&text_event, 0, sizeof(NPCocoaEvent)); | |
909 text_event.type = NPCocoaEventTextInput; | |
910 text_event.data.text.text = | |
911 reinterpret_cast<NPNSString*>(base::SysUTF16ToNSString(text)); | |
912 instance()->NPP_HandleEvent(&text_event); | |
913 } | |
914 | |
915 void WebPluginDelegateImpl::SetThemeCursor(ThemeCursor cursor) { | |
916 current_windowless_cursor_.InitFromThemeCursor(cursor); | |
917 } | |
918 | |
919 void WebPluginDelegateImpl::SetCursor(const Cursor* cursor) { | |
920 current_windowless_cursor_.InitFromCursor(cursor); | |
921 } | |
922 | |
923 void WebPluginDelegateImpl::SetNSCursor(NSCursor* cursor) { | |
924 current_windowless_cursor_.InitFromNSCursor(cursor); | |
925 } | |
926 | |
927 #pragma mark - | |
928 #pragma mark Internal Tracking | |
929 | |
930 void WebPluginDelegateImpl::SetPluginRect(const gfx::Rect& rect) { | |
931 bool plugin_size_changed = rect.width() != window_rect_.width() || | |
932 rect.height() != window_rect_.height(); | |
933 window_rect_ = rect; | |
934 PluginScreenLocationChanged(); | |
935 if (plugin_size_changed) | |
936 UpdateAcceleratedSurface(); | |
937 } | |
938 | |
939 void WebPluginDelegateImpl::SetContentAreaOrigin(const gfx::Point& origin) { | |
940 content_area_origin_ = origin; | |
941 PluginScreenLocationChanged(); | |
942 } | |
943 | |
944 void WebPluginDelegateImpl::PluginScreenLocationChanged() { | |
945 gfx::Point plugin_origin(content_area_origin_.x() + window_rect_.x(), | |
946 content_area_origin_.y() + window_rect_.y()); | |
947 instance()->set_plugin_origin(plugin_origin); | |
948 | |
949 #ifndef NP_NO_CARBON | |
950 if (instance()->event_model() == NPEventModelCarbon) { | |
951 UpdateDummyWindowBounds(plugin_origin); | |
952 } | |
953 #endif | |
954 } | |
955 | |
956 void WebPluginDelegateImpl::PluginVisibilityChanged() { | |
957 #ifndef NP_NO_CARBON | |
958 if (instance()->event_model() == NPEventModelCarbon) | |
959 UpdateIdleEventRate(); | |
960 #endif | |
961 if (instance()->drawing_model() == NPDrawingModelCoreAnimation) { | |
962 bool plugin_visible = container_is_visible_ && !clip_rect_.IsEmpty(); | |
963 if (plugin_visible && !redraw_timer_->IsRunning() && windowed_handle()) { | |
964 redraw_timer_->Start( | |
965 base::TimeDelta::FromMilliseconds(kCoreAnimationRedrawPeriodMs), | |
966 this, &WebPluginDelegateImpl::DrawLayerInSurface); | |
967 } else if (!plugin_visible) { | |
968 redraw_timer_->Stop(); | |
969 } | |
970 } | |
971 } | |
972 | |
973 void WebPluginDelegateImpl::SetImeEnabled(bool enabled) { | |
974 if (instance()->event_model() != NPEventModelCocoa) | |
975 return; | |
976 if (enabled == ime_enabled_) | |
977 return; | |
978 ime_enabled_ = enabled; | |
979 plugin_->SetImeEnabled(enabled); | |
980 } | |
981 | |
982 #pragma mark - | |
983 #pragma mark Core Animation Support | |
984 | |
985 void WebPluginDelegateImpl::DrawLayerInSurface() { | |
986 // If we haven't plumbed up the surface yet, don't try to draw. | |
987 if (!windowed_handle() || !renderer_) | |
988 return; | |
989 | |
990 [renderer_ beginFrameAtTime:CACurrentMediaTime() timeStamp:NULL]; | |
991 if (CGRectIsEmpty([renderer_ updateBounds])) { | |
992 // If nothing has changed, we are done. | |
993 [renderer_ endFrame]; | |
994 return; | |
995 } | |
996 | |
997 surface_->StartDrawing(); | |
998 | |
999 CGRect layerRect = [layer_ bounds]; | |
1000 [renderer_ addUpdateRect:layerRect]; | |
1001 [renderer_ render]; | |
1002 [renderer_ endFrame]; | |
1003 | |
1004 surface_->EndDrawing(); | |
1005 } | |
1006 | |
1007 // Update the size of the surface to match the current size of the plug-in. | |
1008 void WebPluginDelegateImpl::UpdateAcceleratedSurface() { | |
1009 // Will only have a window handle when using a Core Animation drawing model. | |
1010 if (!windowed_handle() || !layer_) | |
1011 return; | |
1012 | |
1013 [CATransaction begin]; | |
1014 [CATransaction setValue:[NSNumber numberWithInt:0] | |
1015 forKey:kCATransactionAnimationDuration]; | |
1016 [layer_ setFrame:CGRectMake(0, 0, | |
1017 window_rect_.width(), window_rect_.height())]; | |
1018 [CATransaction commit]; | |
1019 | |
1020 [renderer_ setBounds:[layer_ bounds]]; | |
1021 surface_->SetSize(window_rect_.size()); | |
1022 } | |
1023 | |
1024 void WebPluginDelegateImpl::set_windowed_handle( | |
1025 gfx::PluginWindowHandle handle) { | |
1026 windowed_handle_ = handle; | |
1027 surface_->SetWindowHandle(handle); | |
1028 UpdateAcceleratedSurface(); | |
1029 // Kick off the drawing timer, if necessary. | |
1030 PluginVisibilityChanged(); | |
1031 } | |
1032 | |
1033 #pragma mark - | |
1034 #pragma mark Carbon Event support | |
1035 | |
1036 #ifndef NP_NO_CARBON | |
1037 void WebPluginDelegateImpl::UpdateDummyWindowBounds( | |
1038 const gfx::Point& plugin_origin) { | |
1039 WindowRef window = reinterpret_cast<WindowRef>(np_cg_context_.window); | |
1040 Rect current_bounds; | |
1041 GetWindowBounds(window, kWindowContentRgn, ¤t_bounds); | |
1042 | |
1043 Rect new_bounds; | |
1044 // We never want to resize the window to 0x0, so if the plugin is 0x0 just | |
1045 // move the window without resizing it. | |
1046 if (window_rect_.width() > 0 && window_rect_.height() > 0) { | |
1047 SetRect(&new_bounds, 0, 0, window_rect_.width(), window_rect_.height()); | |
1048 OffsetRect(&new_bounds, plugin_origin.x(), plugin_origin.y()); | |
1049 } else { | |
1050 new_bounds = current_bounds; | |
1051 OffsetRect(&new_bounds, plugin_origin.x() - current_bounds.left, | |
1052 plugin_origin.y() - current_bounds.top); | |
1053 } | |
1054 | |
1055 if (new_bounds.left != current_bounds.left || | |
1056 new_bounds.top != current_bounds.top || | |
1057 new_bounds.right != current_bounds.right || | |
1058 new_bounds.bottom != current_bounds.bottom) | |
1059 SetWindowBounds(window, kWindowContentRgn, &new_bounds); | |
1060 } | |
1061 | |
1062 void WebPluginDelegateImpl::UpdateIdleEventRate() { | |
1063 bool plugin_visible = container_is_visible_ && !clip_rect_.IsEmpty(); | |
1064 CarbonIdleEventSource::SharedInstance()->RegisterDelegate(this, | |
1065 plugin_visible); | |
1066 } | |
1067 | |
1068 void WebPluginDelegateImpl::FireIdleEvent() { | |
1069 // Avoid a race condition between IO and UI threads during plugin shutdown | |
1070 if (!instance()) | |
1071 return; | |
1072 // Don't send idle events until we've called SetWindow. | |
1073 if (!have_called_set_window_) | |
1074 return; | |
1075 | |
1076 #ifndef NP_NO_QUICKDRAW | |
1077 // Check whether it's time to turn the QuickDraw fast path back on. | |
1078 if (!fast_path_enable_tick_.is_null() && | |
1079 (base::TimeTicks::Now() > fast_path_enable_tick_)) { | |
1080 SetQuickDrawFastPathEnabled(true); | |
1081 fast_path_enable_tick_ = base::TimeTicks(); | |
1082 } | |
1083 #endif | |
1084 | |
1085 ScopedActiveDelegate active_delegate(this); | |
1086 | |
1087 #ifndef NP_NO_QUICKDRAW | |
1088 if (instance()->drawing_model() == NPDrawingModelQuickDraw) | |
1089 qd_manager_->MakePortCurrent(); | |
1090 #endif | |
1091 | |
1092 // Send an idle event so that the plugin can do background work | |
1093 NPEvent np_event = {0}; | |
1094 np_event.what = nullEvent; | |
1095 np_event.when = TickCount(); | |
1096 np_event.modifiers = GetCurrentKeyModifiers(); | |
1097 if (!Button()) | |
1098 np_event.modifiers |= btnState; | |
1099 HIPoint mouse_location; | |
1100 HIGetMousePosition(kHICoordSpaceScreenPixel, NULL, &mouse_location); | |
1101 np_event.where.h = mouse_location.x; | |
1102 np_event.where.v = mouse_location.y; | |
1103 instance()->NPP_HandleEvent(&np_event); | |
1104 | |
1105 #ifndef NP_NO_QUICKDRAW | |
1106 // Quickdraw-based plugins can draw at any time, so tell the renderer to | |
1107 // repaint. | |
1108 if (instance() && instance()->drawing_model() == NPDrawingModelQuickDraw) | |
1109 instance()->webplugin()->Invalidate(); | |
1110 #endif | |
1111 } | |
1112 #endif // !NP_NO_CARBON | |
1113 | |
1114 #pragma mark - | |
1115 #pragma mark QuickDraw Support | |
1116 | |
1117 #ifndef NP_NO_QUICKDRAW | |
1118 void WebPluginDelegateImpl::SetQuickDrawFastPathEnabled(bool enabled) { | |
1119 if (!enabled) { | |
1120 // Wait a couple of seconds, then turn the fast path back on. If we're | |
1121 // turning it off for event handling, that ensures that the common case of | |
1122 // move-mouse-then-click works (as well as making it likely that a second | |
1123 // click attempt will work if the first one fails). If we're turning it | |
1124 // off to force a new baseline image, this leaves plenty of time for the | |
1125 // plugin to draw. | |
1126 fast_path_enable_tick_ = base::TimeTicks::Now() + | |
1127 base::TimeDelta::FromSeconds(2); | |
1128 } | |
1129 | |
1130 if (enabled == qd_manager_->IsFastPathEnabled()) | |
1131 return; | |
1132 if (enabled && clip_rect_.IsEmpty()) { | |
1133 // Don't switch to the fast path while the plugin is completely clipped; | |
1134 // we can only switch when the window has an up-to-date image for us to | |
1135 // scrape. We'll automatically switch after we become visible again. | |
1136 return; | |
1137 } | |
1138 | |
1139 qd_manager_->SetFastPathEnabled(enabled); | |
1140 qd_port_.port = qd_manager_->port(); | |
1141 WindowlessSetWindow(); | |
1142 // Send a paint event so that the new buffer gets updated immediately. | |
1143 WindowlessPaint(buffer_context_, clip_rect_); | |
1144 } | |
1145 #endif // !NP_NO_QUICKDRAW | |
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