public void Bind(ChatUserViewModel viewModel)
{
_viewModel = viewModel;
_avatar.LoadImageWithTextPlaceholder(
viewModel.PhotoUrl,
viewModel.Username,
StyleHelper.Style.ChatAvatarStyles,
x => x.Transform(new CircleTransformation()));
_textView.Text = viewModel.Username;
_view.Clickable = _viewModel.IsActive;
_inactiveOverlay.Visibility = BoolToViewStateConverter.ConvertGone(!_viewModel.IsActive);
_onlineStatusView.Visibility = BoolToViewStateConverter.ConvertGone(_viewModel.IsOnline);
if (_checkboxImageView != null) // reused for few layouts
{
_checkboxImageView.Visibility = BoolToViewStateConverter.ConvertInvisible(_viewModel.IsSelectable);
_selectedBinding?.Detach();
_selectedBinding = this.SetBinding(() => _viewModel.IsSelected).WhenSourceChanges(() =>
{
var resId = _viewModel.IsSelected ? StyleHelper.Style.CheckedIcon : StyleHelper.Style.UnCheckedIcon;
_checkboxImageView.SetImageResource(resId);
});
}
}
protected override void DoAttachBindings()
{
base.DoAttachBindings();
Bindings.Add(this.SetBinding(() => ViewModel.NoResultVisible).WhenSourceChanges(() =>
{
_searchNoResultView.Visibility = BoolToViewStateConverter.ConvertGone(ViewModel.NoResultVisible);
}));
Bindings.Add(this.SetBinding(() => ViewModel.SearchQuery, () => _editText.Text, BindingMode.TwoWay));
Bindings.Add(this.SetBinding(() => ViewModel.IsBusy, () => _busyOverlayView.Visibility)
.ConvertSourceToTarget(BoolToViewStateConverter.ConvertGone));
_newGroupLayout.Click += NewGroupLayoutClick;
}
protected override void DoAttachBindings()
{
base.DoAttachBindings();
Bindings.Add(this.SetBinding(() => ViewModel.ContactNameSearchQuery, () => _editText.Text, BindingMode.TwoWay));
Bindings.Add(this.SetBinding(() => ViewModel.HasSelectedContacts).WhenSourceChanges(() =>
{
_addedMembers.Visibility = ViewModel.HasSelectedContacts
? ViewStates.Visible
: ViewStates.Gone;
}));
Bindings.Add(this.SetBinding(() => ViewModel.IsBusy).WhenSourceChanges(() =>
{
_busyOverlayView.Visibility = BoolToViewStateConverter.ConvertGone(ViewModel.IsBusy);
}));
}
public void BindViewModel(ChatMessageInputViewModel viewModel)
{
_viewModelRef = new WeakReferenceEx <ChatMessageInputViewModel>(viewModel);
_bindings.Add(this.SetBinding(() => _viewModelRef.Target.MessageBody, () => _messageEditText.Text, BindingMode.TwoWay));
_bindings.Add(this.SetBinding(() => _viewModelRef.Target.IsInEditMessageMode).WhenSourceChanges(() =>
{
if (_viewModelRef.Target.IsInEditMessageMode)
{
_editingMessageBodyTextView.Text = _viewModelRef.Target.EditedMessageOriginalBody;
KeyboardService.ShowSoftKeyboard(_messageEditText);
}
else
{
KeyboardService.HideSoftKeyboard(_messageEditText);
}
_editingMessageLayout.Visibility = BoolToViewStateConverter.ConvertGone(_viewModelRef.Target.IsInEditMessageMode);
}));
_bindings.Add(this.SetBinding(() => _viewModelRef.Target.ImageObject).WhenSourceChanges(() =>
{
if (_viewModelRef.Target.ImageObject == null)
{
_imagePreview.SetImageBitmap(null);
_editImageContainer.Visibility = ViewStates.Gone;
}
else
{
_imagePreview.SetImageBitmap((Android.Graphics.Bitmap)_viewModelRef.Target.ImageObject);
_editImageContainer.Visibility = ViewStates.Visible;
}
}));
if (!_inited)
{
_messageEditText.Hint = _viewModelRef.Target.EnterMessagePlaceholderString;
_editingMessageHeader.Text = _viewModelRef.Target.EditMessageHeaderString;
_takeAttachmentButton.SetCommand(_viewModelRef.Target.OpenCameraCommand);
_addAttachmentButton.SetCommand(_viewModelRef.Target.OpenGalleryCommand);
_sendButton.SetCommand(_viewModelRef.Target.SendMessageCommand);
_removeImageButton.SetCommand(_viewModelRef.Target.DeleteImageCommand);
_editingMessageCloseButton.SetCommand(_viewModelRef.Target.CancelEditingCommand);
_inited = true;
}
}
private void ScrollDownButtonVisibilityHandler(bool isVisible)
{
_isAutoScrollToFooterEnabled = !isVisible;
_scrollDownImageButton.Visibility = BoolToViewStateConverter.ConvertGone(isVisible);
}
protected override void DoAttachBindings()
{
base.DoAttachBindings();
Bindings.Add(this.SetBinding(() => ViewModel.HeaderViewModel.ChatName, () => _chatNameEditText.Text, BindingMode.TwoWay));
Bindings.Add(this.SetBinding(() => ViewModel.HeaderViewModel.ChatName, () => _chatNameText.Text));
Bindings.Add(this.SetBinding(() => ViewModel.MembersCountText, () => _chatMembersCountTextView.Text));
Bindings.Add(this.SetBinding(() => ViewModel.HeaderViewModel.AvatarUrl).WhenSourceChanges(() =>
{
Execute.BeginOnUIThread(() =>
{
_chatPhotoImageView.LoadImageWithTextPlaceholder(
ViewModel.HeaderViewModel.AvatarUrl,
ViewModel.HeaderViewModel.ChatName,
new AvatarPlaceholderDrawable.AvatarStyles
{
BackgroundHexColors = StyleHelper.Style.ChatAvatarStyles.BackgroundHexColors,
Size = new System.Drawing.Size(64, 64)
},
x => x.Transform(new CircleTransformation()));
});
}));
Bindings.Add(this.SetBinding(() => _imagePicker.ViewModel.ImageCacheKey).WhenSourceChanges(() =>
{
var newImageCacheKey = _imagePicker.ViewModel.ImageCacheKey;
if (string.IsNullOrEmpty(newImageCacheKey) || newImageCacheKey == _previewImageKey)
{
return;
}
_previewImageKey = newImageCacheKey;
Execute.BeginOnUIThread(() =>
{
ViewModel.HeaderViewModel.StartEditingCommand.Execute(null);
});
ImageService.Instance
.LoadFile(_previewImageKey)
.DownSampleInDip(95, 95)
.Transform(new CircleTransformation())
.IntoAsync(_chatEditedPhotoImageView);
}));
Bindings.Add(this.SetBinding(() => ViewModel.HeaderViewModel.IsMuted, () => _muteNotificationsSwitch.Checked)
.ConvertSourceToTarget(x => !x));
Bindings.Add(this.SetBinding(() => ViewModel.IsBusy, () => _muteNotificationsSwitch.Clickable)
.ConvertSourceToTarget(x => !x));
Bindings.Add(this.SetBinding(() => ViewModel.IsLoading).WhenSourceChanges(() =>
{
_busyOverlayView.Visibility = BoolToViewStateConverter.ConvertGone(ViewModel.IsLoading);
_chatMembersCountTextView.Visibility = BoolToViewStateConverter.ConvertGone(!ViewModel.IsLoading);
}));
Bindings.Add(this.SetBinding(() => ViewModel.CanEdit, BindingMode.OneTime).WhenSourceChanges(() =>
{
if (ViewModel.CanEdit)
{
_changeChatPhotoButton.Visibility = ViewStates.Visible;
_chatNameEditText.Visibility = ViewStates.Visible;
_chatNameText.Visibility = ViewStates.Gone;
}
else
{
_changeChatPhotoButton.Visibility = ViewStates.Gone;
_chatNameEditText.Visibility = ViewStates.Gone;
_chatNameText.Visibility = ViewStates.Visible;
_chatNameText.Selected = true;
}
}));
Bindings.Add(this.SetBinding(() => ViewModel.HeaderViewModel.IsInEditMode).WhenSourceChanges(() =>
{
if (ViewModel.HeaderViewModel.IsInEditMode)
{
_navigationBarView.RightTextButton.Visibility = ViewStates.Visible;
_chatEditedPhotoImageView.Visibility = ViewStates.Visible;
}
else
{
_previewImageKey = null;
_navigationBarView.RightTextButton.Visibility = ViewStates.Gone;
_chatNameEditText.ClearFocus();
_chatNameEditText.ClearComposingText();
KeyboardService.HideSoftKeyboard(_chatNameEditText);
}
}));
_chatNameEditText.FocusChange += OnEditTextFocusChanged;
_addMemberContainer.Click += OnAddMemberClick;
}
public override void BindViewModel(ChatSummaryViewModel viewModel)
{
_viewModelRef = WeakReferenceEx.Create(viewModel);
_messageBodyPhotoLabel.Text = viewModel.LocalizedStrings.Photo;
_messageBodyPhotoImageView.SetImageResource(StyleHelper.Style.LastMessageBodyPhotoIcon);
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.ChatName, () => _chatNameTextView.Text));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.LastMessageViewModel.Username, () => _userNameTextView.Text));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.LastMessageViewModel.Body).WhenSourceChanges(() =>
{
_messageBodyTextView.Text = _viewModelRef.Target.LastMessageViewModel.Body;
_messageBodyTextView.Visibility = BoolToViewStateConverter.ConvertGone(_viewModelRef.Target.LastMessageViewModel.HasBody);
}));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.LastMessageViewModel.DateTime, () => _dateTimeTextView.Text));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.ChatPhotoUrl).WhenSourceChanges(() =>
{
if (_chatPhotoImageView == null)
{
return;
}
_chatPhotoImageView.LoadImageWithTextPlaceholder(
_viewModelRef.Target.ChatPhotoUrl,
_viewModelRef.Target.ChatName,
new AvatarPlaceholderDrawable.AvatarStyles
{
BackgroundHexColors = StyleHelper.Style.ChatAvatarStyles.BackgroundHexColors,
Size = new System.Drawing.Size(44, 44)
},
x => x.Transform(new CircleTransformation()));
}));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.UnreadMessageCount).WhenSourceChanges(() =>
{
if (_unreadMessageCountTextView != null)
{
_unreadMessageCountTextView.Text = _viewModelRef.Target.UnreadMessageCount.ToString();
_unreadMessageCountTextView.Visibility = BoolToViewStateConverter.ConvertGone(_viewModelRef.Target.UnreadMessageCount > 0);
}
}));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.IsMuted).WhenSourceChanges(() =>
{
if (_unreadMessageCountTextView != null)
{
var colorResId = _viewModelRef.Target.IsMuted
? StyleHelper.Style.UnreadMutedMessagesCountColor
: StyleHelper.Style.UnreadMessagesCountColor;
var color = ContextCompat.GetColor(_unreadMessageCountTextView.Context, colorResId);
_unreadMessageCountTextView.Background = CreateBackgroundWithCornerRadius(color, 56f);
}
}));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.LastMessageViewModel.Status).WhenSourceChanges(() =>
{
Color color;
switch (_viewModelRef.Target.LastMessageViewModel.Status)
{
case ChatMessageStatus.Read:
color = Color.GreenYellow;
break;
case ChatMessageStatus.Other:
color = Color.Transparent;
break;
default:
color = Color.ParseColor(ChatStatusDefaultColor);
break;
}
_messageStatusIndicatorView?.SetBackgroundColor(color);
}));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.LastMessageViewModel.HasPhoto).WhenSourceChanges(() =>
{
if (!_viewModelRef.Target.LastMessageViewModel.HasBody && _viewModelRef.Target.LastMessageViewModel.HasPhoto)
{
_messageBodyTextView.Visibility = ViewStates.Gone;
_messageBodyPhotoView.Visibility = ViewStates.Visible;
}
else
{
_messageBodyTextView.Visibility = BoolToViewStateConverter.ConvertGone(_viewModelRef.Target.LastMessageViewModel.HasBody);
_messageBodyPhotoView.Visibility = ViewStates.Gone;
}
}));
}
public override void BindViewModel(ChatMessageViewModel viewModel)
{
_viewModelRef = WeakReferenceEx.Create(viewModel);
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.Body).WhenSourceChanges(() =>
{
// TODO: check
Execute.OnUIThread(() =>
{
var hideMessageBody = string.IsNullOrEmpty(_viewModelRef.Target.Body) && _viewModelRef.Target.HasAttachment;
MessageBodyTextView.Visibility = BoolToViewStateConverter.ConvertGone(hideMessageBody == false);
MessageBodyTextView.Text = _viewModelRef.Target.Body;
});
}));
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.TextDateTime).WhenSourceChanges(() =>
{
// TODO: check
Execute.OnUIThread(() =>
{
MessageDateTimeTextView.Text = _viewModelRef.Target.TextDateTime;
});
}));
if (_viewModelRef.Target.HasAttachment)
{
var model = _viewModelRef.Target.Model;
var expr = default(TaskParameter);
AttachmentImageView.SetImageResource(StyleHelper.Style.AttachmentImagePlaceholder);
UpdateAttachmentImageViewSizeAndVisibility();
if (!string.IsNullOrEmpty(model.ImageCacheKey))
{
expr = ImageService.Instance.LoadFile(model.ImageCacheKey);
}
else if (!string.IsNullOrEmpty(model.ImageRemoteUrl))
{
expr = ImageService.Instance.LoadUrl(model.ImageRemoteUrl);
}
if (expr == null)
{
return;
}
_downloadAttachTask = expr.DownSampleInDip(90, 90)
.Finish(x =>
{
Execute.BeginOnUIThread(UpdateAttachmentImageViewSizeAndVisibility);
});
_downloadAttachTask.IntoAsync(AttachmentImageView);
}
else
{
_downloadAttachTask?.Dispose();
AttachmentImageView.SetImageDrawable(null);
AttachmentImageView.Visibility = ViewStates.Gone;
}
if (_isIncomingMessageViewType && SenderPhotoImageView != null)
{
SenderPhotoImageView.LoadImageWithTextPlaceholder(
_viewModelRef.Target.SenderPhotoUrl,
_viewModelRef.Target.SenderName,
new WhiteLabel.Droid.Controls.AvatarPlaceholderDrawable.AvatarStyles
{
BackgroundHexColors = StyleHelper.Style.ChatAvatarStyles.BackgroundHexColors,
Size = new System.Drawing.Size(35, 35)
},
x => x.Transform(new CircleTransformation()));
}
if (!_isIncomingMessageViewType && MessageStatusView != null)
{
Bindings.Add(this.SetBinding(() => _viewModelRef.Target.Status).WhenSourceChanges(() =>
{
// TODO: check
Execute.OnUIThread(() =>
{
if (_viewModelRef.Target == null)
{
return;
}
ChangeMessageViewStatus(_viewModelRef.Target.Status);
});
}));
}
}