ilyalehchylin/educats-xamarin

using EduCATS.Controls;
using EduCATS.Fonts;
using EduCATS.Helpers.Forms;
using EduCATS.Helpers.Forms.Converters;
using EduCATS.Helpers.Forms.Styles;
using EduCATS.Pages.Today.NewsDetails.ViewModels;
using EduCATS.Themes;
using Nyxbull.Plugins.CrossLocalization;
using Xamarin.Forms;

namespace EduCATS.Pages.Today.NewsDetails.Views
{
    public class NewsDetailsPageView : ContentPage
    {
        const double _spacing = 20;
        const double _bodyFontSize = 5;

        static Thickness _newsTitlePadding = new Thickness(10);

        readonly PlatformServices _services;

        public NewsDetailsPageView(string title, string body)
        {
            Title = CrossLocalization.Translate("news_details_title");
            var dynSize = FontSizeController.GetDynamicSize(_bodyFontSize);
            _services = new PlatformServices();
            BindingContext = new NewsDetailsPageViewModel(dynSize, title, body, _services);
            setToolbar();
            createViews();
        }

        void setToolbar()
        {
            var speechToolbar = new ToolbarItem();

            speechToolbar.SetBinding(
                MenuItem.IconImageSourceProperty,
                "HeadphonesIcon",
                converter: new StringToImageSourceConverter());

            speechToolbar.SetBinding(MenuItem.CommandProperty, "SpeechCommand");
            ToolbarItems.Add(speechToolbar);

            var closeToolbarItem = new ToolbarItem {
                IconImageSource = ImageSource.FromFile(Theme.Current.BaseCloseIcon)
            };

            closeToolbarItem.SetBinding(MenuItem.CommandProperty, "CloseCommand");
            ToolbarItems.Add(closeToolbarItem);
        }

        void createViews()
        {
            var newsTitleLabel = createNewsTitle();
            var newsBodyLabel = createNewsBody();

            Content = new StackLayout {
                Spacing = _spacing,
                BackgroundColor = Color.FromHex(Theme.Current.AppBackgroundColor),
                Children = {
                    newsTitleLabel,
                    newsBodyLabel
                }
            };
        }

        Label createNewsTitle()
        {
            var newsTitleLabel = new Label {
                Padding = _newsTitlePadding,
                TextColor = Color.FromHex(Theme.Current.NewsTextColor),
                HorizontalOptions = LayoutOptions.CenterAndExpand,
                HorizontalTextAlignment = TextAlignment.Center,
                Style = AppStyles.GetLabelStyle(NamedSize.Large)
            };

            newsTitleLabel.SetBinding(Label.TextProperty, "NewsTitle");
            return newsTitleLabel;
        }

        CustomWebView createNewsBody()
        {
            var source = new HtmlWebViewSource();
            source.SetBinding(HtmlWebViewSource.HtmlProperty, "NewsBody");

            var webView = new CustomWebView {
                HorizontalOptions = LayoutOptions.FillAndExpand,
                VerticalOptions = LayoutOptions.FillAndExpand,
                Source = source
            };

            webView.SetBinding(CustomWebView.HttpNavigatingCommandProperty, "HttpNavigatingCommand");
            return webView;
        }
    }
}