Improvements to fitness page

- Data now comes from a calendar
- Hovering in charts shows day info
- Optical enhancements to chart rendering
- Allow setting/showing goal weight
- Allow toggeling between absolute and zoomed in weight axis

assets/fitness/main.html

@@ -2,19 +2,23 @@
 <section class="fitness-chart panel">
     <div class="fitness-chart-header row space-between">
         <span class="caption">{{.Title}}</span>
-        <select class="input fitness-range" data-fitness-range="{{.Param}}" aria-label="{{.Title}} time range">
-            {{range .Options}}<option value="{{.Value}}"{{if .Selected}} selected{{end}}>{{.Label}}</option>{{end}}
-        </select>
+        <div class="row fitness-controls">
+            <label class="fitness-absolute"><input type="checkbox" data-fitness-absolute="{{.Param}}-absolute"{{if .Absolute}} checked{{end}}> Absolute</label>
+            <select class="input fitness-range" data-fitness-range="{{.Param}}" aria-label="{{.Title}} time range">
+                {{range .Options}}<option value="{{.Value}}"{{if .Selected}} selected{{end}}>{{.Label}}</option>{{end}}
+            </select>
+        </div>
     </div>
     {{if .Empty}}
     <p class="fitness-empty is-empty">No data in this range.</p>
     {{else}}
-    <svg class="fitness-svg" viewBox="0 0 {{.ViewW}} {{.ViewH}}" role="img" aria-label="{{.Title}}">
+    <svg class="fitness-svg{{if .Dense}} is-dense{{end}}" viewBox="0 0 {{.ViewW}} {{.ViewH}}" role="img" aria-label="{{.Title}}">
         {{range .YTicks}}
         <line class="chart-grid" x1="{{$.PlotX}}" y1="{{.Pos}}" x2="{{$.PlotR}}" y2="{{.Pos}}"/>
         <text class="chart-label" x="{{$.YLabelX}}" y="{{.Pos}}" text-anchor="end" dominant-baseline="middle">{{.Label}}</text>
         {{end}}
         {{range .XTicks}}
+        <line class="chart-grid" x1="{{.Pos}}" y1="{{$.PlotY}}" x2="{{.Pos}}" y2="{{$.PlotB}}"/>
         <text class="chart-label" x="{{.Pos}}" y="{{$.XLabelY}}" text-anchor="{{.Anchor}}">{{.Label}}</text>
         {{end}}
         <line class="chart-axis" x1="{{.PlotX}}" y1="{{.PlotY}}" x2="{{.PlotX}}" y2="{{.PlotB}}"/>
@@ -23,13 +27,16 @@
         <polyline class="chart-line" points="{{.}}"/>
         {{end}}
         {{range .Dots}}
-        <circle class="chart-dot" cx="{{.X}}" cy="{{.Y}}" r="2.5"><title>{{.Title}}</title></circle>
+        <circle class="chart-dot" cx="{{.X}}" cy="{{.Y}}" r="2.5" data-date="{{.Date}}" data-value="{{.Value}}"/>
         {{end}}
         {{if .Goal}}
         <line class="chart-goal" x1="{{.PlotX}}" y1="{{.Goal.Y}}" x2="{{.PlotR}}" y2="{{.Goal.Y}}"/>
         <text class="chart-goal-label" x="{{.PlotR}}" y="{{.Goal.LabelY}}" text-anchor="end">{{.Goal.Label}}</text>
         {{end}}
+        <line class="chart-cursor" x1="0" y1="{{.PlotY}}" x2="0" y2="{{.PlotB}}"/>
+        <circle class="chart-focus" r="4"/>
     </svg>
+    <div class="fitness-tip" hidden><strong></strong><span></span></div>
     {{end}}
 </section>
 {{end}}