Merge remote-tracking branch 'codeberg/prop/text-input-no-quill'

> We can hand-write markdown for now, as per discussions.
>
> If we have buttons and shortcuts, we'd like them to insert actual markdown into the text stream, and then, as a separate concern, we'd like to render the markdown without changing the text stream (à la Discord). But we're doing none of that now, and it's too high a piece of fruit to pluck today.

3 files changed, 68 insertions, 12 deletions

diff --git a/ui/lib/components/MessageInput.svelte b/ui/lib/components/MessageInput.svelte
index 69a8298..cdb855e 100644
--- a/ui/lib/components/MessageInput.svelte
+++ b/ui/lib/components/MessageInput.svelte
@@ -4,27 +4,61 @@
   let value = $state('');
   let disabled = $state(false);
 
+  // Entering and removing text from the input area leaves a stray line break behind. This effect
+  // looks for that scenario and removes it, restoring the "empty" state (and bringing the
+  // placeholder back again in the process).
+  $effect(() => {
+    const trimmed = value.trim();
+    if (trimmed !== value && trimmed === '') {
+      value = trimmed;
+    }
+  });
+
   async function onsubmit(event) {
     event.preventDefault();
     disabled = true;
     try {
       await sendMessage(value);
-      event.target.reset();
+      event.target.closest('form')?.reset();
     } finally {
       disabled = false;
     }
   }
 
   function onkeydown(event) {
+    if (disabled) {
+      event.preventDefault();
+      return;
+    }
+
     let modifier = event.shiftKey || event.altKey || event.ctrlKey || event.metaKey;
     if (!modifier && event.key === 'Enter') {
       event.preventDefault();
-      event.target.form.requestSubmit();
+      event.target.closest('form')?.requestSubmit();
+    }
+  }
+
+  function onpaste(event) {
+    if (disabled) {
+      event.preventDefault();
     }
   }
 </script>
 
 <form {onsubmit}>
-  <textarea {onkeydown} bind:value {disabled} placeholder="Say something..."></textarea>
+  <textarea bind:value class="hidden" {disabled}></textarea>
+  <div
+    role="textbox"
+    tabindex="0"
+    contenteditable="plaintext-only"
+    class={{
+      textarea: true,
+      disabled
+    }}
+    bind:innerText={value}
+    {onkeydown}
+    {onpaste}
+    data-placeholder="Say something..."
+  ></div>
   <button type="submit">&raquo;</button>
 </form>
diff --git a/ui/styles/forms.css b/ui/styles/forms.css
index eb98743..98fd43e 100644
--- a/ui/styles/forms.css
+++ b/ui/styles/forms.css
@@ -22,3 +22,11 @@ form.form > button {
   border: 1px solid var(--colour-input-border);
   margin: 0.25rem;
 }
+
+.disabled {
+  color: var(--light-text);
+}
+
+.hidden {
+  display: none;
+}
diff --git a/ui/styles/textarea.css b/ui/styles/textarea.css
index 4b8602c..d315bcf 100644
--- a/ui/styles/textarea.css
+++ b/ui/styles/textarea.css
@@ -4,28 +4,42 @@
   flex-direction: row;
   justify-content: flex-start;
   align-items: stretch;
+}
 
-  @media (width <= 640px) {
-    margin: 0 0.5rem 1rem 0.5rem;
-  }
+[data-placeholder]:empty:before {
+  content: attr(data-placeholder);
+  color: var(--light-text);
+  pointer-events: none;
+  display: block; /* For Firefox */
 }
 
-.create-message textarea {
-  padding: 0.5rem;
-  border-radius: 0.5rem 0 0 0.5rem;
+.create-message .textarea {
+  padding: 1rem;
   border: 1px solid var(--colour-input-border);
   z-index: 1; /* Just to make the focus-active border go over the following button. */
   flex-grow: 1;
   background-color: var(--colour-input-bg);
   color: var(--colour-input-text);
-  font-family: 'FiraCode', monospace;
+  min-height: 1rem;
+  max-height: 10rem;
+  overflow-x: hidden;
+  overflow-y: auto;
+
+  @media (width <= 640px) {
+    border-radius: 0;
+    min-height: 2.5rem;
+  }
 }
 
 .create-message button {
-  border-radius: 0 0.5rem 0.5rem 0;
   border: 1px solid var(--colour-input-border);
   background-color: var(--colour-input-bg);
   color: var(--colour-input-text);
+  padding: 1rem;
+
+  @media (width <= 640px) {
+    border-radius: 0;
+  }
 }
 
 main {
@@ -38,7 +52,7 @@ main {
 /* Workaround for iOS zooming in on the textarea when it gets focus. */
 @media screen and (-webkit-min-device-pixel-ratio: 0) {
   select,
-  textarea,
+  .textarea,
   input {
     font-size: 16px;
   }