Add Maidenhead grid overlay, consolidate map controls, improve UX

- Port grid square rendering from gridmap-web with toggle control
- Consolidate band selector, grid toggle, data timestamp, and links
  into unified control panel
- Add "How this works" (/algo) and "Submit a QSO" (/submit) links
- Add back-to-map link on algo page
- Darken range circles for visibility over propagation overlay
- Fix popup blocking double-click zoom with pointer-events passthrough
- Prevent control panel from intercepting map click/scroll events
This commit is contained in:
Graham McIntire 2026-03-31 10:15:21 -05:00
parent 8f89bbdc02
commit c3a5cf4b1a
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5 changed files with 272 additions and 49 deletions

View file

@ -228,4 +228,8 @@
text-decoration: underline;
}
/* Allow map interaction through non-content parts of Leaflet popups */
.leaflet-popup { pointer-events: none; }
.leaflet-popup-content-wrapper, .leaflet-popup-tip, .leaflet-popup-close-button { pointer-events: auto; }
/* This file is for your main application CSS */

View file

@ -74,6 +74,130 @@ function buildPopupHTML(detail) {
</div>`
}
// --- Maidenhead Grid Square ---
class GridSquare {
constructor(lat, lon) {
this.lat = lat
this.lon = ((lon % 360) + 540) % 360 - 180
}
encode(precision = 4) {
const adjLon = this.lon + 180
const adjLat = this.lat + 90
let g = ""
g += String.fromCharCode(65 + Math.floor(adjLon / 20))
g += String.fromCharCode(65 + Math.floor(adjLat / 10))
g += Math.floor((adjLon % 20) / 2)
g += Math.floor(adjLat % 10)
if (precision > 4) {
g += String.fromCharCode(97 + Math.floor(((adjLon % 2) * 60) / 5))
g += String.fromCharCode(97 + Math.floor(((adjLat % 1) * 60) / 2.5))
}
return g
}
static decode(grid) {
const f1 = grid.charCodeAt(0) - 65
const f2 = grid.charCodeAt(1) - 65
let west = f1 * 20 - 180
let south = f2 * 10 - 90
let w = 20, h = 10
if (grid.length >= 4) {
west += parseInt(grid[2]) * 2
south += parseInt(grid[3])
w = 2; h = 1
}
if (grid.length >= 6) {
west += (grid.charCodeAt(4) - 97) * 5 / 60
south += (grid.charCodeAt(5) - 97) * 2.5 / 60
w = 5 / 60; h = 2.5 / 60
}
return {
west, east: west + w, south, north: south + h,
center: { lat: south + h / 2, lon: west + w / 2 }
}
}
}
function drawGridSquare(grid, precision, bounds, zoom, layerGroup, drawnSet, map) {
if (grid.length < 2 || drawnSet.has(grid)) return
drawnSet.add(grid)
const c = GridSquare.decode(grid)
if (c.west > bounds.getEast() || c.east < bounds.getWest() ||
c.south > bounds.getNorth() || c.north < bounds.getSouth()) return
const field = precision <= 2
layerGroup.addLayer(L.rectangle(
[[c.south, c.west], [c.north, c.east]],
{ color: "#E63946", weight: field ? 2.5 : 2, opacity: 0.8, fillOpacity: 0, interactive: false }
))
const sw = map.latLngToContainerPoint([c.south, c.west])
const ne = map.latLngToContainerPoint([c.north, c.east])
const px = Math.abs(ne.x - sw.x)
const minW = field ? 30 : 40
if (px > minW) {
const len = field ? 2 : 4
const text = grid.substring(0, len)
const fs = Math.max(10, Math.min(14, Math.round(px / (len * 1.2))))
layerGroup.addLayer(L.marker([c.center.lat, c.center.lon], {
interactive: false,
icon: L.divIcon({
className: "grid-label",
html: `<div style="font-size:${fs}px;font-weight:bold;color:#fff;background:rgba(0,0,0,0.5);padding:1px 4px;border-radius:3px;white-space:nowrap;width:fit-content;">${text}</div>`,
iconSize: [Math.round(len * fs * 0.8), Math.round(fs * 1.5)],
iconAnchor: [Math.round(len * fs * 0.4), Math.round(fs * 0.75)]
})
}))
}
}
function updateGridOverlay(map, gridLayer) {
gridLayer.clearLayers()
const drawn = new Set()
const bounds = map.getBounds()
const zoom = map.getZoom()
const showSquares = zoom >= 7
const south = Math.max(bounds.getSouth(), -90)
const north = Math.min(bounds.getNorth(), 90)
if (!showSquares) {
const fW = Math.floor((bounds.getWest() + 180) / 20) * 20 - 180
const fE = Math.ceil((bounds.getEast() + 180) / 20) * 20 - 180
const fS = Math.floor((south + 90) / 10) * 10 - 90
const fN = Math.ceil((north + 90) / 10) * 10 - 90
for (let lon = fW; lon < fE; lon += 20) {
for (let lat = fS; lat < fN; lat += 10) {
const nLon = ((lon % 360) + 540) % 360 - 180
const g = new GridSquare(lat + 5, nLon + 10).encode(4).substring(0, 2)
drawGridSquare(g, 2, bounds, zoom, gridLayer, drawn, map)
}
}
return
}
const wE = Math.floor((bounds.getWest() + 180) / 2) * 2 - 180
const eE = Math.ceil((bounds.getEast() + 180) / 2) * 2 - 180
const sE = Math.floor(south + 90) - 90
const nE = Math.ceil(north + 90) - 90
if (Math.ceil((eE - wE) / 2) * Math.ceil(nE - sE) > 500) return
for (let lon = wE; lon < eE; lon += 2) {
for (let lat = sE; lat < nE; lat += 1) {
const nLon = ((lon % 360) + 540) % 360 - 180
const g = new GridSquare(lat + 0.5, nLon + 1).encode(4)
drawGridSquare(g.substring(0, 4), 4, bounds, zoom, gridLayer, drawn, map)
}
}
}
// --- Hook ---
export const PropagationMap = {
mounted() {
this.map = L.map(this.el, {
@ -112,7 +236,29 @@ export const PropagationMap = {
this.bandInfo = band_info
})
// Click on map to show factor breakdown + range circle — fully client-side
// Prevent control panel from eating map clicks/scrolls
const controls = document.getElementById("map-controls")
if (controls) {
L.DomEvent.disableClickPropagation(controls)
L.DomEvent.disableScrollPropagation(controls)
}
// Grid overlay layer
this.gridLayer = L.layerGroup()
this.gridVisible = false
// Listen for grid toggle from LiveView
this.handleEvent("toggle_grid", ({ visible }) => {
this.gridVisible = visible
if (visible) {
this.gridLayer.addTo(this.map)
updateGridOverlay(this.map, this.gridLayer)
} else {
this.gridLayer.remove()
}
})
// Click on map to show factor breakdown + range circle
this.map.on("click", (e) => {
const detail = this.lookupPoint(e.latlng.lat, e.latlng.lng)
if (detail) {
@ -124,13 +270,20 @@ export const PropagationMap = {
}
})
// Clear range circles when popup closes
this.map.on("popupclose", () => this.rangeCircles.clearLayers())
// Close popup on double-click so zoom works through it
this.map.on("dblclick", () => this.map.closePopup())
this.el.addEventListener("show-loading", () => topbar.show(300))
this.sendBounds()
this.map.on("moveend", () => this.sendBounds())
this.map.on("moveend", () => {
this.sendBounds()
if (this.gridVisible) {
updateGridOverlay(this.map, this.gridLayer)
}
})
// Legend
const legend = L.control({ position: "bottomright" })
@ -270,7 +423,6 @@ export const PropagationMap = {
const score = detail.score
const tier = scoreTier(score)
// Compute estimated range in km based on score tier
let rangeKm
if (score >= 80) rangeKm = detail.exceptional_range_km
else if (score >= 65) rangeKm = detail.extended_range_km
@ -280,32 +432,29 @@ export const PropagationMap = {
const typicalKm = detail.typical_range_km
// Outer circle — max estimated range
L.circle(center, {
radius: rangeKm * 1000,
color: tier.color,
weight: 2,
opacity: 0.8,
fillColor: tier.color,
fillOpacity: 0.08,
color: "#222",
weight: 3,
opacity: 0.9,
fillColor: "#000",
fillOpacity: 0.2,
dashArray: "8,6"
}).bindTooltip(`${rangeKm} km (max)`, { permanent: false, direction: "top" })
.addTo(this.rangeCircles)
// Inner circle — typical range
if (typicalKm < rangeKm) {
L.circle(center, {
radius: typicalKm * 1000,
color: tier.color,
weight: 2,
color: "#222",
weight: 3,
opacity: 0.9,
fillColor: tier.color,
fillOpacity: 0.12
fillColor: "#000",
fillOpacity: 0.25
}).bindTooltip(`${typicalKm} km (typical)`, { permanent: false, direction: "top" })
.addTo(this.rangeCircles)
}
// Center marker
L.circleMarker(center, {
radius: 6,
color: "#fff",
@ -313,7 +462,6 @@ export const PropagationMap = {
fillColor: tier.color,
fillOpacity: 1
}).addTo(this.rangeCircles)
},
sendBounds() {

View file

@ -18,6 +18,11 @@ defmodule MicrowavepropWeb.AlgoLive do
def render(assigns) do
~H"""
<div class="markdown-content">
<div class="mb-4">
<.link navigate="/map" class="btn btn-lg btn-ghost text-lg">
<.icon name="hero-arrow-left" class="size-4" /> Back to map
</.link>
</div>
{raw(@content)}
</div>
"""

View file

@ -23,7 +23,8 @@ defmodule MicrowavepropWeb.MapLive do
selected_band: @default_band,
scores: [],
valid_time: valid_time,
bounds: nil
bounds: nil,
grid_visible: false
)}
end
@ -42,6 +43,17 @@ defmodule MicrowavepropWeb.MapLive do
{:noreply, socket}
end
def handle_event("toggle_grid", _params, socket) do
visible = !socket.assigns.grid_visible
socket =
socket
|> assign(:grid_visible, visible)
|> push_event("toggle_grid", %{visible: visible})
{:noreply, socket}
end
def handle_event("map_bounds", bounds, socket) do
scores = Propagation.latest_scores(socket.assigns.selected_band, bounds)
@ -111,39 +123,62 @@ defmodule MicrowavepropWeb.MapLive do
>
</div>
<%!-- Top-left controls overlay --%>
<div class="absolute top-3 left-14 z-[1000] flex items-center gap-2">
<.link navigate="/" class="btn btn-sm bg-base-100/90 shadow border-base-300">
<.icon name="hero-home" class="size-4" />
</.link>
<div class="dropdown">
<div tabindex="0" role="button" class="btn btn-sm bg-base-100/90 shadow border-base-300">
<.icon name="hero-signal" class="size-4" />
{selected_label(@bands, @selected_band)}
<.icon name="hero-chevron-down" class="size-3" />
<%!-- Top-left control panel --%>
<div id="map-controls" class="absolute top-3 left-14 z-[1000] flex flex-col gap-2">
<div class="bg-base-100/90 shadow rounded-box border border-base-300 p-3 flex flex-col gap-2">
<%!-- Band selector --%>
<div class="dropdown">
<div tabindex="0" role="button" class="btn btn-sm w-full justify-between">
<span class="flex items-center gap-1.5">
<.icon name="hero-signal" class="size-4" />
{selected_label(@bands, @selected_band)}
</span>
<.icon name="hero-chevron-down" class="size-3" />
</div>
<ul
tabindex="0"
class="dropdown-content menu bg-base-100 rounded-box shadow-lg w-44 mt-1 p-1"
>
<li :for={band <- @bands}>
<button
phx-click={
JS.dispatch("show-loading", to: "#propagation-map")
|> JS.push("select_band", value: %{value: band.freq_mhz})
|> JS.dispatch("click", to: "#propagation-map")
}
class={[if(@selected_band == band.freq_mhz, do: "active")]}
>
{band.label}
</button>
</li>
</ul>
</div>
<ul
tabindex="0"
class="dropdown-content menu bg-base-100 rounded-box shadow-lg w-44 mt-1 p-1"
>
<li :for={band <- @bands}>
<button
phx-click={
JS.dispatch("show-loading", to: "#propagation-map")
|> JS.push("select_band", value: %{value: band.freq_mhz})
|> JS.dispatch("click", to: "#propagation-map")
}
class={[if(@selected_band == band.freq_mhz, do: "active")]}
>
{band.label}
</button>
</li>
</ul>
</div>
<div :if={@valid_time} class="badge badge-ghost bg-base-100/90 shadow text-xs">
Latest data: {Calendar.strftime(@valid_time, "%b %d, %H:%M UTC")} ({time_ago(@valid_time)})
<%!-- Grid toggle --%>
<label class="flex items-center gap-2 cursor-pointer px-1">
<input
type="checkbox"
class="toggle toggle-sm toggle-primary"
checked={@grid_visible}
phx-click="toggle_grid"
/>
<span class="text-sm">Grid squares</span>
</label>
<%!-- Latest data --%>
<div :if={@valid_time} class="text-xs opacity-70 px-1">
Data: {Calendar.strftime(@valid_time, "%b %d, %H:%M UTC")} ({time_ago(@valid_time)})
</div>
<%!-- Links --%>
<div class="flex flex-col gap-1 border-t border-base-300 pt-2">
<.link navigate="/algo" class="btn btn-xs btn-ghost justify-start gap-1.5">
<.icon name="hero-information-circle" class="size-3.5" /> How this works
</.link>
<.link navigate="/submit" class="btn btn-xs btn-ghost justify-start gap-1.5">
<.icon name="hero-arrow-up-tray" class="size-3.5" /> Submit a QSO
</.link>
</div>
</div>
</div>
</div>

View file

@ -28,6 +28,24 @@ defmodule MicrowavepropWeb.MapLiveTest do
{:ok, _lv, html} = live(conn, ~p"/map")
assert html =~ "data-scores"
end
test "renders grid toggle", %{conn: conn} do
{:ok, _lv, html} = live(conn, ~p"/map")
assert html =~ "Grid squares"
assert html =~ ~s(phx-click="toggle_grid")
end
test "renders how this works link", %{conn: conn} do
{:ok, _lv, html} = live(conn, ~p"/map")
assert html =~ "How this works"
assert html =~ ~s(/algo)
end
test "renders submit QSO link", %{conn: conn} do
{:ok, _lv, html} = live(conn, ~p"/map")
assert html =~ "Submit a QSO"
assert html =~ ~s(/submit)
end
end
describe "select_band" do
@ -39,4 +57,17 @@ defmodule MicrowavepropWeb.MapLiveTest do
assert html =~ "24 GHz"
end
end
describe "toggle_grid" do
test "toggles grid visibility", %{conn: conn} do
{:ok, lv, html} = live(conn, ~p"/map")
refute html =~ "checked"
html = render_click(lv, "toggle_grid")
assert html =~ "checked"
html = render_click(lv, "toggle_grid")
refute html =~ "checked"
end
end
end