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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | 301x 61x 220x 220x 35x 185x 1x 184x 37x 9x 37x 30x 7x 7x 7x 7x 9x 9x 9x 9x 9x 9x 1x 1x 9x 9x 7x 7x 115x 115x 1x 114x 139x 23x 116x 115x 1x 1x 1x 1x 1x 8x 8x 8x 1x 37x 37x 37x 2x 2x 37x 1x 1x 37x 27x 37x 37x 7x 37x 131x 131x 107x 37x 37x 37x 37x | import { evaluateCondition } from "../conditions/evaluateCondition";
import { createElement } from "../dom/createElement";
import { createErrorSummaryId, createFieldDomId } from "../dom/ids";
import type { EventRegistry } from "../dom/events";
import type {
FieldValue,
FormStateSnapshot,
NormalizedField,
NormalizedFormSchema,
NormalizedSchemaNode,
NormalizedSection
} from "../schema/types";
import { builtInRenderers, createDefaultFieldContext } from "./renderField";
import type { RendererRegistry } from "./rendererRegistry";
export interface RenderFormOptions {
schema: NormalizedFormSchema;
state: FormStateSnapshot;
classPrefix: string;
events: EventRegistry;
registry: RendererRegistry;
onSubmit(): void;
onReset(): void;
onValueChange(fieldName: string, value: FieldValue): void;
onTouched(fieldName: string): void;
}
function isSection(node: NormalizedSchemaNode): node is NormalizedSection {
return node.type === "section";
}
export function collectVisibleFields(
nodes: NormalizedSchemaNode[],
values: FormStateSnapshot["values"],
parentVisible = true
): string[] {
return nodes.flatMap((node) => {
const visible = parentVisible && evaluateCondition(node.visibleWhen, values);
if (!visible) {
return [];
}
if (isSection(node)) {
return collectVisibleFields(node.fields, values, visible);
}
return [node.name];
});
}
function renderErrorSummary(options: RenderFormOptions): HTMLElement | null {
const entries = Object.entries(options.state.errors).filter(([fieldName]) =>
options.state.visibleFields.includes(fieldName)
);
if (entries.length === 0) {
return null;
}
const summary = createElement("div", {
className: `${options.classPrefix}-error-summary`,
attributes: {
id: createErrorSummaryId(options.schema.id, options.classPrefix),
role: "alert",
tabindex: "-1"
}
});
const title = createElement("h2", {
className: `${options.classPrefix}-error-summary-title`,
text: "There is a problem with this form"
});
const list = createElement("ul", { className: `${options.classPrefix}-error-summary-list` });
entries.forEach(([fieldName, messages]) => {
const field = options.schema.fieldMap.get(fieldName);
Iif (!field || messages.length === 0) {
return;
}
const item = createElement("li");
const inputId = createFieldDomId(options.schema.id, field.name, options.classPrefix);
const link = createElement("a", {
text: `${field.label}: ${messages[0]}`,
attributes: { href: `#${inputId}` }
});
options.events.listen(link, "click", (event) => {
event.preventDefault();
document.getElementById(inputId)?.focus();
});
item.append(link);
list.append(item);
});
summary.append(title, list);
return summary;
}
function renderField(field: NormalizedField, options: RenderFormOptions): HTMLElement {
const renderer = options.registry.get(field.type) ?? builtInRenderers[field.type];
if (!renderer) {
throw new Error(`No renderer registered for field type "${field.type}".`);
}
return renderer(
createDefaultFieldContext(
field,
options.schema,
options.state,
options.classPrefix,
options.events,
options.onValueChange,
options.onTouched
)
);
}
function renderNode(node: NormalizedSchemaNode, options: RenderFormOptions): HTMLElement | null {
if (!evaluateCondition(node.visibleWhen, options.state.values)) {
return null;
}
if (!isSection(node)) {
return renderField(node, options);
}
const section = createElement("fieldset", { className: `${options.classPrefix}-section` });
const legend = createElement("legend", { className: `${options.classPrefix}-section-title`, text: node.title });
section.append(legend);
Iif (node.description) {
section.append(
createElement("p", { className: `${options.classPrefix}-section-description`, text: node.description })
);
}
node.fields.forEach((child) => {
const renderedChild = renderNode(child, options);
Eif (renderedChild) {
section.append(renderedChild);
}
});
return section;
}
export function renderForm(options: RenderFormOptions): HTMLFormElement {
const form = createElement("form", {
className: `${options.classPrefix}-form`,
attributes: { novalidate: true }
});
const summary = renderErrorSummary(options);
options.events.listen(form, "submit", (event) => {
event.preventDefault();
options.onSubmit();
});
options.events.listen(form, "reset", (event) => {
event.preventDefault();
options.onReset();
});
if (options.schema.title) {
form.append(createElement("h1", { className: `${options.classPrefix}-title`, text: options.schema.title }));
}
Iif (options.schema.description) {
form.append(
createElement("p", { className: `${options.classPrefix}-description`, text: options.schema.description })
);
}
if (summary) {
form.append(summary);
}
options.schema.fields.forEach((node) => {
const renderedNode = renderNode(node, options);
if (renderedNode) {
form.append(renderedNode);
}
});
const actions = createElement("div", { className: `${options.classPrefix}-actions` });
actions.append(
createElement("button", {
className: `${options.classPrefix}-button ${options.classPrefix}-button--primary`,
text: options.schema.submitLabel ?? "Submit",
attributes: { type: "submit" }
}),
createElement("button", {
className: `${options.classPrefix}-button`,
text: options.schema.resetLabel ?? "Reset",
attributes: { type: "reset" }
})
);
form.append(actions);
return form;
}
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