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Reorganize share/export UI

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"Image" and "Embeddable HTML" options move to share control.
Only XML export remains, and is now accessed via a sidebar
link rather than the tab bar.
This commit is contained in:
John Firebaugh 2013-07-10 11:52:33 -07:00
parent b8f126bcf6
commit 438e8be102
7 changed files with 276 additions and 298 deletions
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229
app/assets/javascripts/index/export.js
View file

@ -1,61 +1,32 @@
function initializeExport(map) {
$("#exportanchor").click(function (e) {
$.ajax({ url: $(this).data('url'), success: function (sidebarHtml) {
startExport(sidebarHtml);
}});
e.preventDefault();
});
if (window.location.pathname == "/export") {
$("#exportanchor").click();
startExport();
}
function startExport(sidebarHtml) {
var marker;
function startExport() {
var locationFilter = new L.LocationFilter({
enableButton: false,
adjustButton: false
}).addTo(map);
locationFilter.on("change", filterChanged);
locationFilter.on("change", update);
map.on("moveend", mapMoved);
map.on("baselayerchange", htmlUrlChanged);
map.on("moveend", update);
$("#sidebar_title").html(I18n.t('export.start_rjs.export'));
$("#sidebar_content").html(sidebarHtml);
$("#maxlat,#minlon,#maxlon,#minlat").change(boundsChanged);
$("#drag_box").click(enableFilter);
$("#add_marker").click(startMarker);
$("#format_osm,#format_mapnik,#format_html").click(formatChanged);
$("#mapnik_scale").change(mapnikSizeChanged);
openSidebar();
if (map.getMapBaseLayerId() == "mapnik") {
$("#format_mapnik").prop("checked", true);
}
setBounds(map.getBounds());
formatChanged();
$("body").removeClass("site-index").addClass("site-export");
$("#sidebar").one("closed", function () {
$("body").removeClass("site-export").addClass("site-index");
map.removeLayer(locationFilter);
clearMarker();
map.off("moveend", mapMoved);
map.off("baselayerchange", htmlUrlChanged);
locationFilter.off("change", filterChanged);
map.off("moveend", update);
locationFilter.off("change", update);
});
function getBounds() {
@ -63,22 +34,6 @@ function initializeExport(map) {
L.latLng($("#maxlat").val(), $("#maxlon").val()));
}
function getScale() {
var bounds = map.getBounds(),
centerLat = bounds.getCenter().lat,
halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180),
meters = halfWorldMeters * (bounds.getEast() - bounds.getWest()) / 180,
pixelsPerMeter = map.getSize().x / meters,
metersPerPixel = 1 / (92 * 39.3701);
return Math.round(1 / (pixelsPerMeter * metersPerPixel));
}
function getMercatorBounds() {
var bounds = getBounds();
return L.bounds(L.CRS.EPSG3857.project(bounds.getSouthWest()),
L.CRS.EPSG3857.project(bounds.getNorthEast()));
}
function boundsChanged() {
var bounds = getBounds();
@ -87,7 +42,6 @@ function initializeExport(map) {
enableFilter();
validateControls();
mapnikSizeChanged();
}
function enableFilter() {
@ -99,186 +53,21 @@ function initializeExport(map) {
locationFilter.enable();
}
function filterChanged() {
setBounds(locationFilter.getBounds());
function update() {
setBounds(locationFilter.isEnabled() ? locationFilter.getBounds() : map.getBounds());
validateControls();
}
function startMarker() {
$("#add_marker").html(I18n.t('export.start_rjs.click_add_marker'));
map.on("click", endMarker);
return false;
}
function endMarker(event) {
map.off("click", endMarker);
$("#add_marker").html(I18n.t('export.start_rjs.change_marker'));
$("#marker_inputs").show();
var latlng = event.latlng;
if (marker) {
map.removeLayer(marker);
}
marker = L.marker(latlng).addTo(map);
$("#marker_lon").val(latlng.lng.toFixed(5));
$("#marker_lat").val(latlng.lat.toFixed(5));
htmlUrlChanged();
}
function clearMarker() {
$("#marker_lon,#marker_lat").val("");
$("#marker_inputs").hide();
$("#add_marker").html(I18n.t('export.start_rjs.add_marker'));
if (marker) {
map.removeLayer(marker);
}
}
function mapMoved() {
if (!locationFilter.isEnabled()) {
setBounds(map.getBounds());
validateControls();
}
}
function setBounds(bounds) {
var precision = zoomPrecision(map.getZoom());
$("#minlon").val(bounds.getWest().toFixed(precision));
$("#minlat").val(bounds.getSouth().toFixed(precision));
$("#maxlon").val(bounds.getEast().toFixed(precision));
$("#maxlat").val(bounds.getNorth().toFixed(precision));
mapnikSizeChanged();
htmlUrlChanged();
}
function validateControls() {
var bounds = getBounds();
var tooLarge = bounds.getSize() > OSM.MAX_REQUEST_AREA;
if (tooLarge) {
$("#export_osm_too_large").show();
} else {
$("#export_osm_too_large").hide();
}
var max_scale = maxMapnikScale();
var disabled = true;
if ($("#format_osm").prop("checked")) {
disabled = tooLarge;
} else if ($("#format_mapnik").prop("checked")) {
disabled = $("#mapnik_scale").val() < max_scale;
}
$("#export_commit").prop("disabled", disabled);
$("#mapnik_max_scale").html(roundScale(max_scale));
}
function htmlUrlChanged() {
var bounds = getBounds();
var layerName = map.getMapBaseLayerId();
var url = "http://" + OSM.SERVER_URL + "/export/embed.html?bbox=" + bounds.toBBoxString() + "&amp;layer=" + layerName;
var markerUrl = "";
if ($("#marker_lat").val() && $("#marker_lon").val()) {
markerUrl = "&amp;mlat=" + $("#marker_lat").val() + "&amp;mlon=" + $("#marker_lon").val();
url += "&amp;marker=" + $("#marker_lat").val() + "," + $("#marker_lon").val();
}
var html = '<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="'+url+'" style="border: 1px solid black"></iframe>';
// Create "larger map" link
var center = bounds.getCenter();
var zoom = map.getBoundsZoom(bounds);
var layers = map.getLayersCode();
var text = I18n.t('export.start_rjs.view_larger_map');
var escaped = [];
for (var i = 0; i < text.length; ++i) {
var c = text.charCodeAt(i);
escaped.push(c < 127 ? text.charAt(i) : "&#" + c + ";");
}
html += '<br /><small><a href="http://' + OSM.SERVER_URL + '/?lat='+center.lat+'&amp;lon='+center.lng+'&amp;zoom='+zoom+'&amp;layers='+layers+markerUrl+'">'+escaped.join("")+'</a></small>';
$("#export_html_text").val(html);
if ($("#format_html").prop("checked")) {
$("#export_html_text").prop("selected", true);
}
}
function formatChanged() {
$("#export_commit").show();
if ($("#format_osm").prop("checked")) {
$("#export_osm").show();
} else {
$("#export_osm").hide();
}
if ($("#format_mapnik").prop("checked")) {
$("#mapnik_scale").val(getScale());
$("#export_mapnik").show();
mapnikSizeChanged();
} else {
$("#export_mapnik").hide();
}
if ($("#format_html").prop("checked")) {
$("#export_html").show();
$("#export_commit").hide();
$("#export_html_text").prop("selected", true);
} else {
$("#export_html").hide();
clearMarker();
}
validateControls();
}
function maxMapnikScale() {
var size = getMercatorBounds().getSize();
return Math.floor(Math.sqrt(size.x * size.y / 0.3136));
}
function mapnikImageSize(scale) {
var size = getMercatorBounds().getSize();
return {w: Math.round(size.x / scale / 0.00028),
h: Math.round(size.y / scale / 0.00028)};
}
function roundScale(scale) {
var precision = 5 * Math.pow(10, Math.floor(Math.LOG10E * Math.log(scale)) - 2);
return precision * Math.ceil(scale / precision);
}
function mapnikSizeChanged() {
var size = mapnikImageSize($("#mapnik_scale").val());
$("#mapnik_image_width").html(size.w);
$("#mapnik_image_height").html(size.h);
validateControls();
$("#export_osm_too_large").toggle(getBounds().getSize() > OSM.MAX_REQUEST_AREA);
}
}
}