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| 1 // Copyright 2015 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 "components/scheduler/renderer/render_widget_signals.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/memory/ptr_util.h" | |
| 9 #include "components/scheduler/renderer/render_widget_scheduling_state.h" | |
| 10 #include "components/scheduler/scheduler_export.h" | |
| 11 | |
| 12 namespace scheduler { | |
| 13 | |
| 14 RenderWidgetSignals::RenderWidgetSignals(Observer* observer) | |
| 15 : observer_(observer), | |
| 16 num_visible_render_widgets_(0), | |
| 17 num_visible_render_widgets_with_touch_handlers_(0) {} | |
| 18 | |
| 19 std::unique_ptr<RenderWidgetSchedulingState> | |
| 20 RenderWidgetSignals::NewRenderWidgetSchedulingState() { | |
| 21 return base::WrapUnique(new RenderWidgetSchedulingState(this)); | |
| 22 } | |
| 23 | |
| 24 void RenderWidgetSignals::IncNumVisibleRenderWidgets() { | |
| 25 num_visible_render_widgets_++; | |
| 26 | |
| 27 if (num_visible_render_widgets_ == 1) | |
| 28 observer_->SetAllRenderWidgetsHidden(false); | |
| 29 } | |
| 30 | |
| 31 void RenderWidgetSignals::DecNumVisibleRenderWidgets() { | |
| 32 num_visible_render_widgets_--; | |
| 33 DCHECK_GE(num_visible_render_widgets_, 0); | |
| 34 | |
| 35 if (num_visible_render_widgets_ == 0) | |
| 36 observer_->SetAllRenderWidgetsHidden(true); | |
| 37 } | |
| 38 | |
| 39 void RenderWidgetSignals::IncNumVisibleRenderWidgetsWithTouchHandlers() { | |
| 40 num_visible_render_widgets_with_touch_handlers_++; | |
| 41 | |
| 42 if (num_visible_render_widgets_with_touch_handlers_ == 1) | |
| 43 observer_->SetHasVisibleRenderWidgetWithTouchHandler(true); | |
| 44 } | |
| 45 | |
| 46 void RenderWidgetSignals::DecNumVisibleRenderWidgetsWithTouchHandlers() { | |
| 47 num_visible_render_widgets_with_touch_handlers_--; | |
| 48 DCHECK_GE(num_visible_render_widgets_with_touch_handlers_, 0); | |
| 49 | |
| 50 if (num_visible_render_widgets_with_touch_handlers_ == 0) | |
| 51 observer_->SetHasVisibleRenderWidgetWithTouchHandler(false); | |
| 52 } | |
| 53 | |
| 54 void RenderWidgetSignals::AsValueInto( | |
| 55 base::trace_event::TracedValue* state) const { | |
| 56 state->BeginDictionary("renderer_widget_signals"); | |
| 57 state->SetInteger("num_visible_render_widgets", num_visible_render_widgets_); | |
| 58 state->SetInteger("num_visible_render_widgets_with_touch_handlers", | |
| 59 num_visible_render_widgets_with_touch_handlers_); | |
| 60 state->EndDictionary(); | |
| 61 } | |
| 62 | |
| 63 } // namespace scheduler | |
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Chromium Code Reviews
Issue 2118903002:
scheduler: Move the Blink scheduler into Blink (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master