C++ (Cpp) GetDOMTargets Examples

Example #1

File: APZController.cpp Project: galexcode/mozilla-central

  NS_IMETHOD Run() {
    // This must be on the gecko thread since we access the dom
    MOZ_ASSERT(NS_IsMainThread());

#ifdef DEBUG_CONTROLLER
    WinUtils::Log("APZController: mScrollOffset: %f %f", mFrameMetrics.mScrollOffset.x,
      mFrameMetrics.mScrollOffset.y);
#endif

    nsCOMPtr<nsIDocument> subDocument;
    nsCOMPtr<nsIContent> targetContent;
    if (!GetDOMTargets(mFrameMetrics.mScrollId,
                       subDocument, targetContent)) {
      return NS_OK;
    }

    // If we're dealing with a sub frame or content editable element,
    // call UpdateSubFrame.
    if (targetContent) {
#ifdef DEBUG_CONTROLLER
      WinUtils::Log("APZController: detected subframe or content editable");
#endif
      APZCCallbackHelper::UpdateSubFrame(targetContent, mFrameMetrics);
      return NS_OK;
    }

#ifdef DEBUG_CONTROLLER
    WinUtils::Log("APZController: detected tab");
#endif

    // We're dealing with a tab, call UpdateRootFrame.
    nsCOMPtr<nsIDOMWindowUtils> utils;
    nsCOMPtr<nsIDOMWindow> window = subDocument->GetDefaultView();
    if (window) {
      utils = do_GetInterface(window);
      if (utils) {
        APZCCallbackHelper::UpdateRootFrame(utils, mFrameMetrics);

        // Return the actual scroll value so we can use it to filter
        // out scroll messages triggered by setting the display port.
        if (mLastOffsetOut) {
          *mLastOffsetOut = mozilla::gfx::RoundedToInt(mFrameMetrics.mScrollOffset);
        }
        if (mLastScrollIdOut) {
          mLastScrollIdOut->mScrollId = mFrameMetrics.mScrollId;
          mLastScrollIdOut->mPresShellId = mFrameMetrics.mPresShellId;
        }

#ifdef DEBUG_CONTROLLER
        WinUtils::Log("APZController: %I64d mDisplayPort: %0.2f %0.2f %0.2f %0.2f",
          mFrameMetrics.mScrollId,
          mFrameMetrics.mDisplayPort.x,
          mFrameMetrics.mDisplayPort.y,
          mFrameMetrics.mDisplayPort.width,
          mFrameMetrics.mDisplayPort.height);
#endif
      }
    }
    return NS_OK;
  }

Example #2

File: APZController.cpp Project: marshall/gecko-dev

// APZC sends us this request when we need to update the display port on
// the scrollable frame the apzc is managing.
void
APZController::RequestContentRepaint(const FrameMetrics& aFrameMetrics)
{
#ifdef DEBUG_CONTROLLER
  WinUtils::Log("APZController::RequestContentRepaint scrollid=%I64d",
    aFrameMetrics.GetScrollId());
#endif

  // This must be on the gecko thread since we access the dom
  MOZ_ASSERT(NS_IsMainThread());

#ifdef DEBUG_CONTROLLER
  WinUtils::Log("APZController: mScrollOffset: %f %f", aFrameMetrics.mScrollOffset.x,
    aFrameMetrics.mScrollOffset.y);
#endif

  nsCOMPtr<nsIDocument> subDocument;
  nsCOMPtr<nsIContent> targetContent;
  if (!GetDOMTargets(aFrameMetrics.GetScrollId(),
                     subDocument, targetContent)) {
    return;
  }

  // If we're dealing with a sub frame or content editable element,
  // call UpdateSubFrame.
  if (targetContent) {
#ifdef DEBUG_CONTROLLER
    WinUtils::Log("APZController: detected subframe or content editable");
#endif
    FrameMetrics metrics = aFrameMetrics;
    mozilla::layers::APZCCallbackHelper::UpdateSubFrame(targetContent, metrics);
    return;
  }

#ifdef DEBUG_CONTROLLER
  WinUtils::Log("APZController: detected tab");
#endif

  // We're dealing with a tab, call UpdateRootFrame.
  nsCOMPtr<nsIDOMWindowUtils> utils;
  nsCOMPtr<nsIDOMWindow> window = subDocument->GetDefaultView();
  if (window) {
    utils = do_GetInterface(window);
    if (utils) {
      FrameMetrics metrics = aFrameMetrics;
      mozilla::layers::APZCCallbackHelper::UpdateRootFrame(utils, metrics);

#ifdef DEBUG_CONTROLLER
      WinUtils::Log("APZController: %I64d mDisplayPortMargins: %0.2f %0.2f %0.2f %0.2f",
        metrics.GetScrollId(),
        metrics.GetDisplayPortMargins().left,
        metrics.GetDisplayPortMargins().top,
        metrics.GetDisplayPortMargins().right,
        metrics.GetDisplayPortMargins().bottom);
#endif
    }
  }
}

Example #3

  NS_IMETHOD Run() {
    // This must be on the gecko thread since we access the dom
    MOZ_ASSERT(NS_IsMainThread());

#ifdef DEBUG_CONTROLLER
    WinUtils::Log("APZController: mScrollOffset: %f %f", mFrameMetrics.mScrollOffset.x,
      mFrameMetrics.mScrollOffset.y);
#endif

    nsCOMPtr<nsIDocument> subDocument;
    nsCOMPtr<nsIContent> targetContent;
    if (!GetDOMTargets(mFrameMetrics.mScrollId,
                       subDocument, targetContent)) {
      return NS_OK;
    }

    // If we're dealing with a sub frame or content editable element,
    // call UpdateSubFrame.
    if (targetContent) {
#ifdef DEBUG_CONTROLLER
      WinUtils::Log("APZController: detected subframe or content editable");
#endif
      APZCCallbackHelper::UpdateSubFrame(targetContent, mFrameMetrics);
      return NS_OK;
    }

#ifdef DEBUG_CONTROLLER
    WinUtils::Log("APZController: detected tab");
#endif

    // We're dealing with a tab, call UpdateRootFrame.
    nsCOMPtr<nsIDOMWindowUtils> utils;
    nsCOMPtr<nsIDOMWindow> window = subDocument->GetDefaultView();
    if (window) {
      utils = do_GetInterface(window);
      if (utils) {
        APZCCallbackHelper::UpdateRootFrame(utils, mFrameMetrics);

#ifdef DEBUG_CONTROLLER
        WinUtils::Log("APZController: %I64d mDisplayPort: %0.2f %0.2f %0.2f %0.2f",
          mFrameMetrics.mScrollId,
          mFrameMetrics.mDisplayPort.x,
          mFrameMetrics.mDisplayPort.y,
          mFrameMetrics.mDisplayPort.width,
          mFrameMetrics.mDisplayPort.height);
#endif
      }
    }
    return NS_OK;
  }