Canvas support V1

assets/page/dialogs.html

@@ -16,6 +16,19 @@ confirmation), or fail with a plain-text error. */}}
 </form>
 </div>{{end}}
 
+{{define "canvas"}}<div class="modal-backdrop">
+<form class="modal panel panel-floating" role="dialog" aria-modal="true" aria-labelledby="modal-title" hx-post="?canvas" hx-target="#modal-host">
+<div class="panel-header"><span id="modal-title">New canvas — name?</span></div>
+<div class="panel-body">
+<input class="input" type="text" name="name" placeholder="Canvas name" required autofocus />
+</div>
+<div class="panel-footer">
+<button class="btn" type="button" data-modal-close>CANCEL</button>
+<button class="btn" type="submit">CREATE</button>
+</div>
+</form>
+</div>{{end}}
+
 {{define "move"}}<div class="modal-backdrop">
 <form class="modal panel panel-floating" role="dialog" aria-modal="true" aria-labelledby="modal-title" hx-post="?move" hx-target="#modal-host">
 <div class="panel-header"><span id="modal-title">Move — new name?</span></div>

assets/page/main.html

@@ -1,5 +1,6 @@
 {{define "headerActions"}}{{if .CanEdit}}
 <button class="btn btn-block" onclick="newPage()" title="New page (N)"><span class="btn-icon">{{icon "new"}}</span><span class="btn-label">NEW</span></button>
+<button class="btn btn-block" hx-get="?dialog=canvas" hx-target="#modal-host" title="New canvas on this page"><span class="btn-icon">{{icon "canvas"}}</span><span class="btn-label">CANVAS</span></button>
 <button class="btn btn-block" data-companion-reveal hidden title="Reveal in file manager"><span class="btn-icon">{{icon "reveal"}}</span><span class="btn-label">REVEAL</span></button>
 {{if not .IsRoot}}
 <button class="btn btn-block" onclick="movePage()" title="Move page (M)"><span class="btn-icon">{{icon "move"}}</span><span class="btn-label">MOVE</span></button>