budibase/packages/standard-components/src/Login.svelte

<script>
  import Button from "./Button.svelte"

  export let usernameLabel = "Username"
  export let passwordLabel = "Password"
  export let loginButtonLabel = "Login"
  export let logo = ""
  export let buttonClass = ""
  export let inputClass = ""

  export let _bb

  let username = ""
  let password = ""
  let loading = false
  let error = false
  let _logo = ""
  let _buttonClass = ""
  let _inputClass = ""

  $: {
    _logo = _bb.relativeUrl(logo)
    _buttonClass = buttonClass || "default-button"
    _inputClass = inputClass || "default-input"
  }

  const login = async () => {
    loading = true
    const response = await _bb.api.post("/api/authenticate", { username, password });

    if (response.status === 200) {
      const json = await response.json();
      localStorage.setItem("budibase:token", json.token);
      // TODO: possibly do something with the user information in the response?
      location.reload()
    } else {
      loading = false
      error = true
    }

  }
</script>

<div class="root">
  <div class="content">
    {#if _logo}
      <div class="logo-container">
        <img src={_logo} alt="logo" />
      </div>
    {/if}

    <div class="form-root">
      <div class="label">{usernameLabel}</div>
      <div class="control">
        <input bind:value={username} type="text" class={_inputClass} />
      </div>
      <div class="label">{passwordLabel}</div>
      <div class="control">
        <input bind:value={password} type="password" class={_inputClass} />
      </div>
    </div>

    <div class="login-button-container">
      <button disabled={loading} on:click={login} class={_buttonClass}>
        {loginButtonLabel}
      </button>
    </div>

    {#if error}
      <div class="incorrect-details-panel">Incorrect username or password</div>
    {/if}
  </div>
</div>

<style>
  .root {
    height: 100%;
    display: grid;
    grid-template-columns: [left] 1fr [middle] auto [right] 1fr;
    grid-template-rows: [top] 1fr [center] auto [bottom] 1fr;
  }

  .content {
    grid-column-start: middle;
    grid-row-start: center;
    width: 400px;
  }

  .logo-container {
    margin-bottom: 20px;
  }

  .logo-container > img {
    max-width: 100%;
  }

  .login-button-container {
    text-align: right;
    margin-top: 20px;
  }

  .incorrect-details-panel {
    margin-top: 30px;
    padding: 10px;
    border-style: solid;
    border-width: 1px;
    border-color: maroon;
    border-radius: 1px;
    text-align: center;
    color: maroon;
    background-color: mistyrose;
  }

  .form-root {
    display: grid;
    grid-template-columns: [label] auto [control] 1fr; /* [overflow] auto;*/
  }

  .label {
    grid-column-start: label;
    padding: 5px 10px;
    vertical-align: middle;
  }
  .control {
    grid-column-start: control;
    padding: 5px 10px;
  }

  .default-input {
    font-family: inherit;
    font-size: inherit;
    padding: 0.4em;
    margin: 0 0 0.5em 0;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 2px;
    width: 100%;
  }

  .default-button {
    font-family: inherit;
    font-size: inherit;
    padding: 0.4em;
    margin: 0 0 0.5em 0;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 2px;
    color: #000333;
    outline: none;
  }

  .default-button:active {
    background-color: #f9f9f9;
  }

  .default-button:focus {
    border-color: #f9f9f9;
  }
</style>