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restaurant-search/static/scripts/search.js

221 lines
7.4 KiB
JavaScript

/*
* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
(function(hscd) {
'use strict';
var _ctx = {};
function stateChanged(name, value, mode) {
_ctx.query.features[name] = value;
_ctx.query.modes[name] = mode;
$.post('/query', JSON.stringify(_ctx.query), function(results) {
saveSnapshot(results);
outputSnapshot(results, true);
}, 'json');
}
function ready(geo) {
_ctx = {
sortKey: 'score',
sortAsc: false,
query: {},
geo: geo
};
Handlebars.registerHelper('prettyFloat', function(precision, options) {
return parseFloat(options.fn(this)).toFixed(precision);
});
Handlebars.registerHelper('urlEncode', function(options) {
return encodeURIComponent(options.fn(this));
});
$('#minScore,#resolution,#walkingDist,#maxResults').change(onSearch);
$('#profileDlg').on('hidden.bs.modal', onSearch);
$('#resetStorage').click(function() {
if (confirm('Are you sure you want to reset your profile?')) {
localStorage.clear();
$('iframe').attr('src', $('iframe').attr('src'));
}
});
window.accessReview = function(id) {
$.post('/access', JSON.stringify({id: id, profile: getProfile()}));
onSearch();
};
window.sortReviewsBy = function(sortKey) {
if (sortKey === _ctx.sortKey) {
_ctx.sortAsc = !_ctx.sortAsc;
}
else {
_ctx.sortKey = sortKey;
}
onSearch();
};
onSearch();
}
function onSearch() {
_ctx.query = {
features: _ctx.query.features || {},
modes: _ctx.query.modes || {},
sortKey: _ctx.sortKey,
sortAsc: _ctx.sortAsc,
profile: getProfile(),
walkingDist: parseFloat($('#walkingDist').val()),
minScore: parseFloat($('#minScore').val()),
resolution: parseInt($('#resolution').val()),
maxResults: parseInt($('#maxResults').val())
};
if (_ctx.geo) {
_ctx.query.geo = {
latitude: _ctx.geo.coords.latitude,
longitude: _ctx.geo.coords.longitude
};
}
$.post('/query', JSON.stringify(_ctx.query), function(results) {
if (!_.has(_ctx, 'grapher')) {
_ctx.grapher = new grapher.Grapher({
canvas: new Snap('#svg'),
stateChanged: stateChanged,
displayType: $('#displayType').val(),
useLocalScale: $('#useLocalScale').is(':checked')
});
$('#useLocalScale').click(function() {
_ctx.grapher.setUseLocalScale($('#useLocalScale').is(':checked'));
});
$('#useRelativeScale').click(function() {
_ctx.grapher.setUseRelativeScale($('#useRelativeScale').is(':checked'));
});
$('#displayType').change(function() {
_ctx.grapher.setDisplayType($('#displayType').val());
});
var columns = {};
for (var feature in results.columns) {
var column = results.columns[feature];
_ctx.query.features[feature] = column.value;
columns[feature] = {
value: column.value,
hints: column.hints,
bracket: column.bracket,
mode: column.mode
};
}
_ctx.grapher.setColumns(columns);
}
saveSnapshot(results);
outputSnapshot(results, false);
}, 'json');
}
function saveSnapshot(results) {
window.history.pushState(results, null, null);
}
function outputSnapshot(results, omitValues) {
var records = results.records || [];
_ctx.query.minScore = results.minScore;
$('#minScore').val(results.minScore);
var columns = {};
for (var name in results.columns) {
var column = results.columns[name];
columns[name] = omitValues ? _.omit(column, 'value') : column;
_ctx.query.features[name] = column.value;
}
_ctx.grapher.setColumns(columns);
var searchResultCnt = String(records.length);
if (records.length < results.count) {
searchResultCnt += ' of ' + results.count;
}
$('#resultCount').text(searchResultCnt);
$('#elapsedTime').text(Math.round(results.elapsedTime / 1000000) + ' ms');
var template = Handlebars.compile($('#template').html());
$('#records').empty();
$('#records').append(template({records: records}));
$('span.sort-icon').css('visibility', 'hidden');
var currentColumn = $('span.sort-icon[data-sort="' + _ctx.sortKey + '"]').css('visibility', 'visible');
if (_ctx.sortAsc) {
currentColumn.removeClass('glyphicon-chevron-down').addClass('glyphicon-chevron-up');
}
else {
currentColumn.removeClass('glyphicon-chevron-up').addClass('glyphicon-chevron-down');
}
if (records.length === 0) {
$('#resultPanel').slideUp();
}
else {
$('#resultPanel').slideDown();
}
}
function getProfile() {
return JSON.parse(localStorage.profile || '{}');
}
window.onpopstate = function(state) {
if (state.state) {
outputSnapshot(state.state, false);
}
};
$(document).on({
ajaxStart: function() {
$('#spinner').show();
},
ajaxStop: function() {
$('#spinner').hide();
},
ready: function() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(
function(geo) { ready(geo); },
function(err) { ready(null); },
{ enableHighAccuracy: true }
);
}
else {
ready(null);
}
}
});
}(window.hscd = window.hscd || {}));