widget/windows/winrt/APZController.cpp

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #include "APZController.h"
   6 #include "base/message_loop.h"
   7 #include "mozilla/layers/GeckoContentController.h"
   8 #include "nsThreadUtils.h"
   9 #include "MetroUtils.h"
  10 #include "nsPrintfCString.h"
  11
  12 namespace mozilla {
  13 namespace widget {
  14 namespace winrt {
  15
  16 class RequestContentRepaintEvent : public nsRunnable
  17 {
  18     typedef mozilla::layers::FrameMetrics FrameMetrics;
  19
  20 public:
  21     RequestContentRepaintEvent(const FrameMetrics& aFrameMetrics) : mFrameMetrics(aFrameMetrics)
  22     {
  23     }
  24
  25     NS_IMETHOD Run() {
  26         // This event shuts down the worker thread and so must be main thread.
  27         MOZ_ASSERT(NS_IsMainThread());
  28
  29         CSSToScreenScale resolution = mFrameMetrics.mZoom;
  30         CSSRect compositedRect = mFrameMetrics.CalculateCompositedRectInCssPixels();
  31
  32         NS_ConvertASCIItoUTF16 data(nsPrintfCString("{ " \
  33                                                     "  \"resolution\": %.2f, " \
  34                                                     "  \"scrollId\": %d, " \
  35                                                     "  \"compositedRect\": { \"width\": %d, \"height\": %d }, " \
  36                                                     "  \"displayPort\":    { \"x\": %d, \"y\": %d, \"width\": %d, \"height\": %d }, " \
  37                                                     "  \"scrollTo\":       { \"x\": %d, \"y\": %d }" \
  38                                                     "}",
  39                                                     (float)(resolution.scale / mFrameMetrics.mDevPixelsPerCSSPixel.scale),
  40                                                     (int)mFrameMetrics.mScrollId,
  41                                                     (int)compositedRect.width,
  42                                                     (int)compositedRect.height,
  43                                                     (int)mFrameMetrics.mDisplayPort.x,
  44                                                     (int)mFrameMetrics.mDisplayPort.y,
  45                                                     (int)mFrameMetrics.mDisplayPort.width,
  46                                                     (int)mFrameMetrics.mDisplayPort.height,
  47                                                     (int)mFrameMetrics.mScrollOffset.x,
  48                                                     (int)mFrameMetrics.mScrollOffset.y));
  49
  50         MetroUtils::FireObserver("apzc-request-content-repaint", data.get());
  51         return NS_OK;
  52     }
  53 protected:
  54     const FrameMetrics mFrameMetrics;
  55 };
  56
  57 void
  58 APZController::RequestContentRepaint(const FrameMetrics& aFrameMetrics)
  59 {
  60   // Send the result back to the main thread so that it can shutdown
  61   nsCOMPtr<nsIRunnable> r1 = new RequestContentRepaintEvent(aFrameMetrics);
  62   if (!NS_IsMainThread()) {
  63     NS_DispatchToMainThread(r1);
  64   } else {
  65     r1->Run();
  66   }
  67 }
  68
  69 void
  70 APZController::HandleDoubleTap(const CSSIntPoint& aPoint)
  71 {
  72 }
  73
  74 void
  75 APZController::HandleSingleTap(const CSSIntPoint& aPoint)
  76 {
  77 }
  78
  79 void
  80 APZController::HandleLongTap(const CSSIntPoint& aPoint)
  81 {
  82 }
  83
  84 void
  85 APZController::SendAsyncScrollDOMEvent(FrameMetrics::ViewID aScrollId, const CSSRect &aContentRect, const CSSSize &aScrollableSize)
  86 {
  87 }
  88
  89 void
  90 APZController::PostDelayedTask(Task* aTask, int aDelayMs)
  91 {
  92   MessageLoop::current()->PostDelayedTask(FROM_HERE, aTask, aDelayMs);
  93 }
  94
  95 void
  96 APZController::HandlePanBegin()
  97 {
  98   MetroUtils::FireObserver("apzc-handle-pan-begin", L"");
  99 }
 100
 101 void
 102 APZController::HandlePanEnd()
 103 {
 104   MetroUtils::FireObserver("apzc-handle-pan-end", L"");
 105 }
 106
 107 } } }