How to close modal in event handler liveview

Phoenix Forum Questions / Help
,
1

A few hours of work as not made it happen :frowning:. I need approach 1 (or similar) to work.

Note: I’m using the default LiveHelpers modal code.1

Approach 1

The modal should close on “save okay” only, so is handled after save in the handler. For now handle_event just tries to close. hide_modal runs but does not close the modal.

  def handle_event("save", %{"user" => user_params}, socket) do
    IO.inspect(user_params) # this runs
    save_user(socket, socket.assigns.action, user_params)
    MyApp.LiveHelpers.hide_modal() #default location of modal
    {:noreply, socket}
  end

# form where the save button is
  <.form
    let={f}
    for={@changeset}
    id="user-form"
    phx-target={@myself}
    phx-change="validate"
    phx-submit="save">
  
    <div>
      <%= submit "Save", phx_disable_with: "Saving..."%>
    </div>
  </.form>

# modal close function comes w/ Phoenix, and works elsewhere
  def hide_modal(js \\ %JS{}) do
    IO.puts("fired")
    js
    |> JS.hide(to: "#modal", transition: "fade-out")
    |> JS.hide(to: "#modal-content", transition: "fade-out-scale")
  end

IO.puts("fired") runs but the modal does not close.

Approach 2

Adding to the button does work but it closes on any click, even w/ a blank form, or w/ errors. This would work for a cancel button but not for save.

 <%= submit "Save", phx_disable_with: "Saving...", phx_click: MyApp.LiveHelpers.hide_modal()%>

I guess it’s something to do w/ the binding phx- events directly to the button render, or lack thereof. Since it’s conditional to “save okay” this blunt click binding will not suffice.

2

If you navigate away, or patch the url so there is another live_action, this should happen automatically.

<.modal
  :if={@live_action in [:new, :edit]}
  id="task-modal"
  show
  on_cancel={JS.navigate(~p"/tasks")}
>
  <:title><%= @page_title %></:title>
  <.live_component
    module={MyAppWeb.TasksLive.FormComponent}
    id={@task.id || :new}
    title={@page_title}
    action={@live_action}
    task={@task}
    navigate={~p"/tasks"}
  />
</.modal>

But If you dont change url, or live_action,you can update it so instead of:

:if={@live_action in [:new, :edit]}

you can use set a show_modal in assigns and let that control it.

:if={@show_modal}

Otherwise, I usually go for a variant described here:

1 Like
3

The modal is already showing. The problem is I cannot close it.
Oh you are saying the navigate might work…

Default modal

def modal(assigns) do
    assigns = assign_new(assigns, :return_to, fn -> nil end)

    ~H"""
    <div id="modal" class="phx-modal fade-in" phx-remove={hide_modal()}>
      <div
        id="modal-content"
        class="phx-modal-content fade-in-scale"
        phx-click-away={JS.dispatch("click", to: "#close")}
        phx-window-keydown={JS.dispatch("click", to: "#close")}
        phx-key="escape"
      >
        <%= if @return_to do %>
          <%= live_patch "✖",
            to: @return_to,
            id: "close",
            class: "phx-modal-close",
            phx_click: hide_modal()
          %>
        <% else %>
          <a id="close" href="#" class="phx-modal-close" phx-click={hide_modal()}>✖</a>
        <% end %>

        <%= render_slot(@inner_block) %>
      </div>
    </div>
    """
  end
4

Yeah, in the example above, when leaving :new and going back to :index. the modal closes.