package alba
Source file web_application.ml
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374module type DECODER = sig type _ t val return: 'msg -> 'msg t val float: float t val int: int t val string: string t val bool: bool t val field: string -> 'msg t -> 'msg t val map: ('a -> 'b) -> 'a t -> 'b t end module type ENCODER = sig type t val string: string -> t val bool: bool -> t val object_: (string * t) list -> t end module type WEB_APPLICATION = sig type _ decoder type encoder module Attribute: sig type 'msg t = | Style of string * string | Attribute of string * string | Property of string * encoder | On of string * 'msg decoder end module Dom: sig type 'msg t = | Text of string | Node of string * 'msg Attribute.t list * 'msg t list end module Command: sig type 'msg t = | None | Batch of 'msg t list | Http of string (* type: GET, POST, ... *) * string (* url *) * string (* data to be sent with the request *) * ((string,int) result -> 'msg) (* response text or status e.g. 404 for not found *) end module Subscription: sig type 'msg t = | None | Batch of 'msg t list | Root of string * 'msg decoder (* events on the root element *) end end module type BROWSER = sig module Decoder: DECODER module Encoder: ENCODER module Make: functor (Vapp: WEB_APPLICATION with type 'msg decoder = 'msg Decoder.t and type encoder = Encoder.t) -> sig val sandbox: 'model -> ('model -> 'msg Vapp.Dom.t) -> ('msg -> 'model -> 'model) -> unit val element: 'a Decoder.t -> ('a -> 'model * 'msg Vapp.Command.t) -> ('model -> 'msg Vapp.Dom.t) -> ('msg -> 'model -> 'model * 'msg Vapp.Command.t) -> ('model -> 'msg Vapp.Subscription.t) -> unit end end module Make (Browser: BROWSER) = struct module Decoder = Browser.Decoder module Encoder = Browser.Encoder type 'msg decoder = 'msg Decoder.t type encoder = Encoder.t module Attribute = struct type 'msg t = | Style of string * string | Attribute of string * string | Property of string * encoder | On of string * 'msg decoder let style (name: string) (value: string): 'msg t = Style (name, value) let attribute (name: string) (value: string): 'msg t = Attribute (name, value) let property (name: string) (value: encoder): 'msg t = Property (name, value) let on (name: string) (handler: 'msg decoder): 'msg t = On (name, handler) let string_property (name: string) (value: string): 'msg t = property name (Encoder.string value) let bool_property (name: string) (value: bool): 'msg t = property name (Encoder.bool value) let placeholder (value: string): 'msg t = attribute "placeholder" value let value (value: string): 'msg t = string_property "value" value let checked (value: bool): 'msg t = bool_property "checked" value let type_ (value: string): 'msg t = attribute "type" value let class_ (value: string): 'msg t = attribute "class" value let onClick (msg: 'msg): 'msg t = on "click" (Decoder.return msg) let onDoubleClick (msg: 'msg): 'msg t = on "doubleclick" (Decoder.return msg) let onMouseDown (msg: 'msg): 'msg t = on "mousedown" (Decoder.return msg) let onMouseUp (msg: 'msg): 'msg t = on "mouseup" (Decoder.return msg) let onMouseEnter (msg: 'msg): 'msg t = on "mouseenter" (Decoder.return msg) let onMouseLeave (msg: 'msg): 'msg t = on "mouseleave" (Decoder.return msg) let onMouseOver (msg: 'msg): 'msg t = on "mouseover" (Decoder.return msg) let onMouseOut (msg: 'msg): 'msg t = on "mouseout" (Decoder.return msg) let onKeyDown (f: string -> 'msg): 'msg t = on "keydown" Decoder.(map f (field "key" string)) let onKeyUp (f: string -> 'msg): 'msg t = on "keyup" Decoder.(map f (field "key" string)) let onInput (f: string -> 'msg): 'msg t = on "input" Decoder.( field "target" (map f (field "value" string))) let onCheck (f: bool -> 'msg): 'msg t = on "click" Decoder.( field "target" (map f (field "checked" bool))) end module Dom = struct type 'msg t = | Text of string | Node of string * 'msg Attribute.t list * 'msg t list type 'msg attributes = 'msg Attribute.t list type 'msg children = 'msg t list let text (s: string): 'msg t = Text s let node (tag: string) (attrs: 'msg attributes) (children: 'msg children) : 'msg t = Node (tag, attrs, children) let div (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "div" attrs children let span (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "span" attrs children let pre (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "pre" attrs children let p (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "p" attrs children let ol (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "ol" attrs children let ul (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "ul" attrs children let li (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "li" attrs children let h1 (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "h1" attrs children let h2 (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "h2" attrs children let h3 (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "h3" attrs children let h4 (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "h4" attrs children let h5 (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "h5" attrs children let h6 (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "h6" attrs children let b (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "b" attrs children let i (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "i" attrs children let strong (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "strong" attrs children let (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "button" attrs children let input (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "input" attrs children let textarea (attrs: 'msg attributes) (children: 'msg children): 'msg t = node "textarea" attrs children end module Command = struct type 'msg t = | None | Batch of 'msg t list | Http of string (* type: GET, POST, ... *) * string (* url *) * string (* data to be sent with the request *) * ((string,int) result -> 'msg) (* response text or status e.g. 404 for not found *) let http_get (url: string) (handler: (string,int) result -> 'msg) : 'msg t = Http ("GET", url, "", handler) end module Subscription = struct type 'msg t = | None | Batch of 'msg t list | Root of string * 'msg decoder (* events on the root element *) end end