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/*****************************************************************************
*
* ViewOverview.js - All NagVis overview related top level code
*
* Copyright (c) 2004-2016 NagVis Project (Contact: info@nagvis.org)
*
* License:
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*****************************************************************************/
var ViewOverview = View.extend({
type : 'overview',
rendered_maps : 0,
processed_maps : 0,
constructor: function() {
this.base(null);
},
init: function() {
addEvent(document, 'mousedown', context_handle_global_mousedown);
this.renderPageBasics();
this.render();
this.loadMaps();
this.loadRotations();
},
update: function() {
var to_update = this.getObjectsToUpdate();
if (to_update[0].length > 0) {
this.base({
mod : 'Overview',
data : to_update[0]
});
}
},
/**
* END OF PUBLIC METHODS
*/
render: function() {
this.dom_obj = document.getElementById('overview');
// Render maps and the rotations when enabled
var types = [
[ oPageProperties.showmaps, 'overviewMaps', oPageProperties.lang_mapIndex ],
[ oPageProperties.showrotations, 'overviewRotations', oPageProperties.lang_rotationPools ]
];
for (var i = 0; i < types.length; i++) {
if (types[i][0] === 1) {
var h2 = document.createElement('h2');
h2.innerHTML = types[i][2];
this.dom_obj.appendChild(h2);
var container = document.createElement('div');
container.setAttribute('id', types[i][1]);
container.className = 'infobox';
this.dom_obj.appendChild(container);
}
}
this.base();
},
// Add the objects dom_obj to the maps dom_obj
drawObject: function(obj) {
var container = document.getElementById('overviewMaps');
container.appendChild(obj.dom_obj);
},
// Removes the given objects dom_obj from the maps dom_obj
eraseObject: function(obj) {
var container = document.getElementById('overviewMaps');
if (obj.dom_obj.parentNode == container)
container.removeChild(obj.dom_obj);
},
// Adds a single map to the overview map list
addMap: function(objects, data) {
var map_name = data[0],
worldmap_has_bbox = data[1];
this.processed_maps += 1;
// Exit this function on invalid call
if (objects === null || objects.length != 1) {
eventlog("worker", "warning", "addOverviewMap: Invalid call - maybe broken ajax response ("+map_name+")");
if (this.processed_maps == g_map_names.length)
finishOverviewMaps();
return false;
}
var map_conf = objects[0];
// The worldmap preview summary state should reflect the state shown by the worldmap
// when the user opens it. This means it is needed to calculate which area of the worldmap
// will be shown to the user and then only deal with the objects within this area.
// Bad here: For the worldmaps we need to do a second HTTP request which should be avoided
if (!worldmap_has_bbox && map_conf['sources']
&& map_conf['sources'].indexOf('worldmap') !== -1) {
var worldmap = L.map('overview', {
markerZoomAnimation: false,
maxBounds: [ [-85,-180.0], [85,180.0] ],
minZoom: 2
}).setView(map_conf['worldmap_center'].split(','), parseInt(map_conf['worldmap_zoom']));
worldmap.remove();
// leaflet does not clean up everything. We do it on our own.
var overview = document.getElementById('overview');
remove_class(overview, 'leaflet-container');
remove_class(overview, 'leaflet-retina');
remove_class(overview, 'leaflet-fade-anim');
this.processed_maps -= 1;
call_ajax(oGeneralProperties.path_server+'?mod=Overview&act=getObjectStates'
+ '&i[]=map-' + escapeUrlValues(map_name)
+ getViewParams({'bbox': worldmap.getBounds().toBBoxString()}), {
response_handler : this.addMap.bind(this),
handler_data : [ map_name, true ]
});
return;
}
this.rendered_maps += 1; // also count errors
var container = document.getElementById('overviewMaps');
// Find the map placeholder div (replace it to keep sorting)
var mapdiv = null;
var child = null;
for (var i = 0; i < container.childNodes.length; i++) {
child = container.childNodes[i];
if (child.id == map_name) {
mapdiv = child;
break;
}
}
// render the map object
var obj = new NagVisMap(map_conf);
// Save object to map objects array
this.objects[obj.conf.object_id] = obj;
obj.update();
obj.render();
container.replaceChild(obj.dom_obj, mapdiv);
// Finalize rendering after last map...
if (this.processed_maps == g_map_names.length)
this.finishMaps();
},
finishMaps: function() {
// Hide the "Loading..." message. This is not the best place since rotations
// might not have been loaded now but in most cases this is the longest running request
hideStatusMessage();
},
// Does initial parsing of rotations on the overview page
addRotations: function(rotations) {
if (oPageProperties.showrotations === 1 && rotations.length > 0) {
for (var i = 0, len = rotations.length; i < len; i++) {
new NagVisRotation(rotations[i]).parseOverview();
}
} else {
// Hide the rotations container
var container = document.getElementById('overviewRotations');
if (container) {
container.style.display = 'none';
}
}
},
// Fetches all maps to be shown on the overview page
loadMaps: function() {
var map_container = document.getElementById('overviewMaps');
if (oPageProperties.showmaps !== 1 || g_map_names.length == 0) {
if (map_container)
map_container.parentNode.style.display = 'none';
hideStatusMessage();
return false;
}
for (var i = 0, len = g_map_names.length; i < len; i++) {
var mapdiv = document.createElement('div');
mapdiv.setAttribute('id', g_map_names[i])
map_container.appendChild(mapdiv);
call_ajax(oGeneralProperties.path_server+'?mod=Overview&act=getObjectStates'
+ '&i[]=map-' + escapeUrlValues(g_map_names[i]) + getViewParams(), {
response_handler : this.addMap.bind(this),
handler_data : [ g_map_names[i], false ]
});
}
},
// Fetches all rotations to be shown on the overview page
loadRotations: function() {
call_ajax(oGeneralProperties.path_server+'?mod=Overview&act=getOverviewRotations', {
response_handler: this.addRotations.bind(this)
});
}
});
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