Ejemplo n.º 1
0
void
AndroidGeckoLayerClient::SyncViewportInfo(const LayerIntRect& aDisplayPort, const CSSToLayerScale& aDisplayResolution,
                                          bool aLayersUpdated, ScreenPoint& aScrollOffset, CSSToScreenScale& aScale,
                                          LayerMargin& aFixedLayerMargins, ScreenPoint& aOffset)
{
    NS_ASSERTION(!isNull(), "SyncViewportInfo called on null layer client!");
    JNIEnv *env = GetJNIForThread();    // this is called on the compositor thread
    if (!env)
        return;

    AutoLocalJNIFrame jniFrame(env);

    jobject viewTransformJObj = env->CallObjectMethod(wrapped_obj, jSyncViewportInfoMethod,
                                                      aDisplayPort.x, aDisplayPort.y,
                                                      aDisplayPort.width, aDisplayPort.height,
                                                      aDisplayResolution.scale, aLayersUpdated);
    if (jniFrame.CheckForException())
        return;

    NS_ABORT_IF_FALSE(viewTransformJObj, "No view transform object!");

    AndroidViewTransform viewTransform;
    viewTransform.Init(viewTransformJObj);

    aScrollOffset = ScreenPoint(viewTransform.GetX(env), viewTransform.GetY(env));
    aScale.scale = viewTransform.GetScale(env);
    viewTransform.GetFixedLayerMargins(env, aFixedLayerMargins);

    aOffset.x = viewTransform.GetOffsetX(env);
    aOffset.y = viewTransform.GetOffsetY(env);
}
Ejemplo n.º 2
0
void
AndroidGeckoLayerClient::SyncViewportInfo(const nsIntRect& aDisplayPort, float aDisplayResolution, bool aLayersUpdated,
        nsIntPoint& aScrollOffset, float& aScaleX, float& aScaleY)
{
    NS_ASSERTION(!isNull(), "SyncViewportInfo called on null layer client!");
    JNIEnv *env = GetJNIForThread();    // this is called on the compositor thread
    if (!env)
        return;

    AutoLocalJNIFrame jniFrame(env);

    jobject viewTransformJObj = env->CallObjectMethod(wrapped_obj, jSyncViewportInfoMethod,
                                aDisplayPort.x, aDisplayPort.y,
                                aDisplayPort.width, aDisplayPort.height,
                                aDisplayResolution, aLayersUpdated);
    if (jniFrame.CheckForException())
        return;

    NS_ABORT_IF_FALSE(viewTransformJObj, "No view transform object!");

    AndroidViewTransform viewTransform;
    viewTransform.Init(viewTransformJObj);

    aScrollOffset = nsIntPoint(viewTransform.GetX(env), viewTransform.GetY(env));
    aScaleX = aScaleY = viewTransform.GetScale(env);
}