Example #1
0
        public Element CreateElement()
        {
            var heading  = new Heading("Draw");
            var subtitle = new Paragraph("Click to draw a masterpiece");
            var toolSel  = new Select();

            toolSel.AppendChild(new Option {
                Text = "Boxes", Value = "box"
            });
            toolSel.AddOption("Circles", "circle");
            var canvas = new Canvas
            {
                Width  = 320,
                Height = 240,
            };
            var context = canvas.GetContext2D();

            canvas.Click += (s, e) =>
            {
                var radius = 10;
                context.BeginPath();
                if (toolSel.Value == "box")
                {
                    context.Rect(e.OffsetX - radius, e.OffsetY - radius, 2 * radius, 2 * radius);
                }
                else
                {
                    context.Arc(e.OffsetX, e.OffsetY, radius, 0, 2 * Math.PI, true);
                }

                context.Fill();
            };
            canvas.Style.Cursor      = "pointer";
            canvas.Style.BorderColor = "#CCC";
            canvas.Style.BorderStyle = "solid";
            canvas.Style.BorderWidth = "1px";

            var clearbtn = new Button("Clear")
            {
                Type      = ButtonType.Submit,
                ClassName = "btn btn-danger",
            };

            clearbtn.Click += (s, e) => {
                context.ClearRect(0, 0, canvas.Width, canvas.Height);
            };
            clearbtn.Style.Display = "block";

            var app = new Div();

            app.AppendChild(heading);
            app.AppendChild(subtitle);
            app.AppendChild(new Div(toolSel));
            app.AppendChild(canvas);
            app.AppendChild(clearbtn);
            return(app);
        }
        /// <summary>
        /// 1. IsMultiSelect == false && IsCompact == true => render as a drop down select element
        /// 2. IsMultiSelect == false && IsCompact == false => render as a list of radio buttons
        /// 3. IsMultiSelect == true => render as a list of toggle inputs
        /// </summary>
        protected static Element ChoiceSetRender(AdaptiveChoiceSetInput adaptiveChoiceSetInput, ElementAdaptiveRenderContext context)
        {
            if (!adaptiveChoiceSetInput.IsMultiSelect)
            {
                if (adaptiveChoiceSetInput.Style == AdaptiveChoiceInputStyle.Compact)
                {
                    var uiSelectElement = new Select()
                                          .SetAttr("name", adaptiveChoiceSetInput.Id)
                                          .AddClass("ac-input")
                                          .AddClass("ac-multichoiceInput")
                                          .Style("width", "100%");

                    foreach (var choice in adaptiveChoiceSetInput.Choices)
                    {
                        var option = new Option()
                        {
                            Text = choice.Title
                        }
                        .SetAttr("value", choice.Value);

                        if (choice.Value == adaptiveChoiceSetInput.Value)
                        {
                            option.SetAttr("selected", string.Empty);
                        }
                        uiSelectElement.AppendChild(option);
                    }

                    return(uiSelectElement);
                }
                else
                {
                    return(ChoiceSetRenderInternal(adaptiveChoiceSetInput, context, "radio"));
                }
            }
            else
            {
                return(ChoiceSetRenderInternal(adaptiveChoiceSetInput, context, "checkbox"));
            }
        }