protected virtual void UpdateDrawerLockMode(FlyoutBehavior behavior)
{
switch (behavior)
{
case FlyoutBehavior.Disabled:
CloseDrawers();
Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, false);
_currentLockMode = LockModeLockedClosed;
SetDrawerLockMode(_currentLockMode);
_content.SetPadding(0, _content.PaddingTop, _content.PaddingRight, _content.PaddingBottom);
break;
case FlyoutBehavior.Flyout:
_currentLockMode = LockModeUnlocked;
SetDrawerLockMode(_currentLockMode);
_content.SetPadding(0, _content.PaddingTop, _content.PaddingRight, _content.PaddingBottom);
break;
case FlyoutBehavior.Locked:
Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, true);
_currentLockMode = LockModeLockedOpen;
SetDrawerLockMode(_currentLockMode);
_content.SetPadding(_flyoutWidth, _content.PaddingTop, _content.PaddingRight, _content.PaddingBottom);
break;
}
unchecked
{
SetScrimColor(behavior == FlyoutBehavior.Locked ? Color.Transparent.ToAndroid() : (int)DefaultScrimColor);
}
}
protected virtual void UpdateDrawerLockMode(FlyoutBehavior behavior)
{
AddFlyoutContentToLayoutIfNeeded(behavior);
switch (behavior)
{
case FlyoutBehavior.Disabled:
CloseDrawers();
Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, false);
_currentLockMode = LockModeLockedClosed;
SetDrawerLockMode(_currentLockMode);
_content.SetPadding(0, _content.PaddingTop, _content.PaddingRight, _content.PaddingBottom);
break;
case FlyoutBehavior.Flyout:
_currentLockMode = LockModeUnlocked;
SetDrawerLockMode(_currentLockMode);
_content.SetPadding(0, _content.PaddingTop, _content.PaddingRight, _content.PaddingBottom);
break;
case FlyoutBehavior.Locked:
Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, true);
_currentLockMode = LockModeLockedOpen;
SetDrawerLockMode(_currentLockMode);
_content.SetPadding((int)FlyoutWidth, _content.PaddingTop, _content.PaddingRight, _content.PaddingBottom);
break;
}
UpdateScrim(_scrimBrush);
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
switch (behavior)
{
case FlyoutBehavior.Disabled:
IsPaneToggleButtonVisible = false;
IsPaneVisible = false;
PaneDisplayMode = Microsoft.UI.Xaml.Controls.NavigationViewPaneDisplayMode.LeftMinimal;
IsPaneOpen = false;
break;
case FlyoutBehavior.Flyout:
IsPaneVisible = true;
IsPaneToggleButtonVisible = true;
bool shouldOpen = Shell.FlyoutIsPresented;
PaneDisplayMode = Microsoft.UI.Xaml.Controls.NavigationViewPaneDisplayMode.LeftMinimal; //This will trigger opening the flyout
IsPaneOpen = shouldOpen;
break;
case FlyoutBehavior.Locked:
IsPaneVisible = true;
IsPaneToggleButtonVisible = false;
PaneDisplayMode = Microsoft.UI.Xaml.Controls.NavigationViewPaneDisplayMode.Left;
break;
}
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
bool closeAfterUpdate = (behavior == FlyoutBehavior.Flyout && _behavior == FlyoutBehavior.Locked);
_behavior = behavior;
UpdateDrawerLockMode(behavior);
if (closeAfterUpdate)
{
CloseDrawer(_flyoutContent.AndroidView, false);
}
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
_flyoutBehavior = behavior;
if (behavior == FlyoutBehavior.Locked)
{
IsOpen = true;
}
else if (behavior == FlyoutBehavior.Disabled)
{
IsOpen = false;
}
LayoutSidebar(false);
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
if (_flyoutBehavior == behavior)
{
return;
}
_flyoutBehavior = behavior;
if (Page != null)
{
UpdateLeftBarButtonItem();
}
}
public static DrawerBehavior ToPlatform(this FlyoutBehavior behavior)
{
if (behavior == FlyoutBehavior.Disabled)
{
return(DrawerBehavior.Disabled);
}
else if (behavior == FlyoutBehavior.Locked)
{
return(DrawerBehavior.Locked);
}
else
{
return(DrawerBehavior.Drawer);
}
}
void AddFlyoutContentToLayoutIfNeeded(FlyoutBehavior behavior)
{
if (behavior == FlyoutBehavior.Disabled)
{
return;
}
if (_flyoutContent == null && ChildCount > 0)
{
_flyoutContent = _shellContext.CreateShellFlyoutContentRenderer();
UpdateFlyoutSize();
AddView(_flyoutContent.AndroidView);
}
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
AddFlyoutContentToLayoutIfNeeded(behavior);
if (_flyoutContent?.AndroidView == null)
{
return;
}
bool closeAfterUpdate = (behavior == FlyoutBehavior.Flyout && _behavior == FlyoutBehavior.Locked);
_behavior = behavior;
UpdateDrawerLockMode(behavior);
if (closeAfterUpdate)
{
CloseDrawer(_flyoutContent.AndroidView, false);
}
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
switch (behavior)
{
case FlyoutBehavior.Disabled:
PreferredDisplayMode = UISplitViewControllerDisplayMode.PrimaryHidden;
PresentsWithGesture = false;
break;
case FlyoutBehavior.Flyout:
PreferredDisplayMode = UISplitViewControllerDisplayMode.PrimaryHidden;
PresentsWithGesture = true;
_isPresented = false;
_context.Shell.SetValueFromRenderer(Shell.FlyoutIsPresentedProperty, false);
break;
case FlyoutBehavior.Locked:
PreferredDisplayMode = UISplitViewControllerDisplayMode.AllVisible;
break;
}
_flyoutBehavior = behavior;
}
public async void OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
_flyoutBehavior = behavior;
await UpdateToolbarItems().ConfigureAwait(false);
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
UpdateFlyoutBehavior();
}
public void OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
_flyoutBehavior = behavior;
UpdateToolbarItems().FireAndForget();
}
public virtual void LayoutViews(CGRect bounds, nfloat openPercent, UIView flyout, UIView shell, FlyoutBehavior behavior)
{
if (behavior == FlyoutBehavior.Locked)
{
openPercent = 1;
}
nfloat flyoutHeight;
nfloat flyoutWidth;
if (Width != -1d)
{
flyoutWidth = (nfloat)Width;
}
else if (UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Pad)
{
flyoutWidth = 320;
}
else
{
flyoutWidth = (nfloat)(Math.Min(bounds.Width, bounds.Height) * 0.8);
}
if (Height == -1d)
{
flyoutHeight = bounds.Height;
}
else
{
flyoutHeight = (nfloat)Height;
}
nfloat openLimit = flyoutWidth;
nfloat openPixels = openLimit * openPercent;
if (behavior == FlyoutBehavior.Locked)
{
shell.Frame = new CGRect(bounds.X + flyoutWidth, bounds.Y, bounds.Width - flyoutWidth, flyoutHeight);
}
else
{
shell.Frame = bounds;
}
var shellWidth = shell.Frame.Width;
if (shell.SemanticContentAttribute == UISemanticContentAttribute.ForceRightToLeft)
{
var positionY = shellWidth - openPixels;
flyout.Frame = new CGRect(positionY, 0, flyoutWidth, flyoutHeight);
}
else
{
flyout.Frame = new CGRect(-openLimit + openPixels, 0, flyoutWidth, flyoutHeight);
}
}
public void LayoutViews(CGRect bounds, nfloat openPercent, UIView flyout, UIView shell, FlyoutBehavior behavior)
{
if (behavior == FlyoutBehavior.Locked)
{
openPercent = 1;
}
nfloat flyoutWidth = (nfloat)(Math.Min(bounds.Width, bounds.Height) * 0.8);
nfloat openLimit = flyoutWidth;
nfloat openPixels = openLimit * openPercent;
if (behavior == FlyoutBehavior.Locked)
{
shell.Frame = new CGRect(bounds.X + flyoutWidth, bounds.Y, bounds.Width - flyoutWidth, bounds.Height);
}
else
{
shell.Frame = bounds;
}
var shellWidth = shell.Frame.Width;
if (shell.SemanticContentAttribute == UISemanticContentAttribute.ForceRightToLeft)
{
var positionY = shellWidth - openPixels;
flyout.Frame = new CGRect(positionY, 0, flyoutWidth, bounds.Height);
}
else
{
flyout.Frame = new CGRect(-openLimit + openPixels, 0, flyoutWidth, bounds.Height);
}
if (behavior != FlyoutBehavior.Locked)
{
var shellOpacity = (nfloat)(0.5 + (0.5 * (1 - openPercent)));
shell.Layer.Opacity = (float)shellOpacity;
}
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
}
void IFlyoutBehaviorObserver.OnFlyoutBehaviorChanged(FlyoutBehavior behavior)
{
_behavior = behavior;
UpdateDrawerLockMode(behavior);
}
public static Shell FlyoutBehavior(this Shell shell, FlyoutBehavior behavior)
{
shell.FlyoutBehavior = behavior;
return(shell);
}
public static void SetFlyoutBehavior(BindableObject obj, FlyoutBehavior value) => obj.SetValue(FlyoutBehaviorProperty, value);
public void LayoutViews(CGRect bounds, nfloat openPercent, UIView flyout, UIView shell, FlyoutBehavior behavior)
{
flyout.Frame = new CGRect(0, 0, 0, 0);
}
public void LayoutViews(CGRect bounds, nfloat openPercent, UIView flyout, UIView shell, FlyoutBehavior behavior)
{
if (behavior == FlyoutBehavior.Locked)
{
openPercent = 1;
}
nfloat flyoutWidth = (nfloat)(Math.Min(bounds.Width, bounds.Height) * 0.8);
nfloat openLimit = flyoutWidth;
nfloat openPixels = openLimit * openPercent;
if (behavior == FlyoutBehavior.Locked)
{
shell.Frame = new CGRect(bounds.X + flyoutWidth, bounds.Y, bounds.Width - flyoutWidth, bounds.Height);
}
else
{
shell.Frame = bounds;
}
flyout.Frame = new CGRect(-openLimit + openPixels, 0, flyoutWidth, bounds.Height);
if (behavior != FlyoutBehavior.Locked)
{
var shellOpacity = (nfloat)(0.5 + (0.5 * (1 - openPercent)));
shell.Layer.Opacity = (float)shellOpacity;
}
}
public static T FlyoutBehavior <T>(this T shell, FlyoutBehavior flyoutBehavior) where T : IRxShell
{
shell.FlyoutBehavior = flyoutBehavior;
return(shell);
}
