mirror of
https://github.com/friendica/friendica
synced 2024-11-19 11:43:41 +00:00
310 lines
10 KiB
JavaScript
310 lines
10 KiB
JavaScript
/* Copyright (c) 2011 by MapQuery Contributors (see AUTHORS for
|
|
* full list of contributors). Published under the MIT license.
|
|
* See https://github.com/mapquery/mapquery/blob/master/LICENSE for the
|
|
* full text of the license. */
|
|
|
|
/**
|
|
#jquery.mapquery.mqLayerManager.js
|
|
The file containing the mqLayerManager Widget
|
|
|
|
### *$('selector')*.`mqLayerManager([options])`
|
|
_version added 0.1_
|
|
####**Description**: create a widget to manage layers
|
|
|
|
+ **options**:
|
|
- **map**: the mapquery instance
|
|
- **title**: Title that will be displayed at the top of the
|
|
layer manager (default: Layer Manager)
|
|
|
|
|
|
>Returns: widget
|
|
|
|
>Requires: jquery.mapquery.legend.js
|
|
|
|
|
|
The mqLayerManager allows us to control the order, opacity and visibility
|
|
of layers. We can also remove layers. It also shows the legend of the layer if
|
|
available and the error messages provided by the legend plugin. It listens to
|
|
layerchange event for order, transparancy and opacity changes. It listens to
|
|
addlayer and removelayer events to keep track which layers are on the map.
|
|
|
|
|
|
$('#layermanager').mqLayerManager({map:'#map'});
|
|
|
|
|
|
*/
|
|
(function($) {
|
|
$.template('mqLayerManager',
|
|
'<div class="mq-layermanager ui-widget-content ">'+
|
|
'</div>');
|
|
|
|
$.template('mqLayerManagerElement',
|
|
'<div class="mq-layermanager-element ui-widget-content ui-corner-all" id="mq-layermanager-element-${id}">'+
|
|
'<div class="mq-layermanager-element-header ui-dialog-titlebar ui-widget-header ui-corner-all ui-helper-clearfix">'+
|
|
'<span class="mq-layermanager-label ui-dialog-title">${label}</span>'+
|
|
'<a class="ui-dialog-titlebar-close ui-corner-all" href="#" role="button">'+
|
|
'<span class="ui-icon ui-icon-closethick">close</span></a></div>'+
|
|
'<div class="mq-layermanager-element-content">'+
|
|
'<div class="mq-layermanager-element-visibility">'+
|
|
'<input type="checkbox" class="mq-layermanager-element-vischeckbox" id="${id}-visibility" {{if visible}}checked="${visible}"{{/if}} />'+
|
|
'<div class="mq-layermanager-element-slider-container">'+
|
|
'<div class="mq-layermanager-element-slider"></div></div>'+
|
|
'</div>'+
|
|
'<div class="mq-layermanager-element-legend">'+
|
|
'{{if imgUrl}}'+
|
|
'<img src="${imgUrl}" style="opacity:${opacity}"/>'+
|
|
'{{/if}}'+
|
|
'{{if errMsg}}'+
|
|
'${errMsg}'+
|
|
'{{/if}}'+
|
|
'</div>'+
|
|
'</div>'+
|
|
'</div>');
|
|
|
|
$.widget("mapQuery.mqLayerManager", {
|
|
options: {
|
|
// The MapQuery instance
|
|
map: undefined,
|
|
|
|
// Title that will be displayed at the top of the popup
|
|
title: "Layer Manager"
|
|
},
|
|
_create: function() {
|
|
var map;
|
|
var zoom;
|
|
var numzoomlevels;
|
|
var self = this;
|
|
var element = this.element;
|
|
|
|
//get the mapquery object
|
|
map = $(this.options.map).data('mapQuery');
|
|
|
|
this.element.addClass('ui-widget ui-helper-clearfix ' +
|
|
'ui-corner-all');
|
|
|
|
var lmElement = $.tmpl('mqLayerManager').appendTo(element);
|
|
element.find('.ui-icon-closethick').button();
|
|
|
|
lmElement.sortable({
|
|
axis:'y',
|
|
handle: '.mq-layermanager-element-header',
|
|
update: function(event, ui) {
|
|
var layerNodes = ui.item.siblings().andSelf();
|
|
var num = layerNodes.length-1;
|
|
layerNodes.each(function(i) {
|
|
var layer = $(this).data('layer');
|
|
var pos = num-i;
|
|
self._position(layer, pos);
|
|
});
|
|
}
|
|
});
|
|
|
|
//these layers are already added to the map as such won't trigger
|
|
//and event, we call the draw function directly
|
|
$.each(map.layers().reverse(), function(){
|
|
self._layerAdded(lmElement, this);
|
|
});
|
|
|
|
element.delegate('.mq-layermanager-element-vischeckbox',
|
|
'change',function() {
|
|
var checkbox = $(this);
|
|
var element = checkbox.parents('.mq-layermanager-element');
|
|
var layer = element.data('layer');
|
|
var self = element.data('self');
|
|
self._visible(layer,checkbox.is(':checked'));
|
|
});
|
|
|
|
element.delegate('.ui-icon-closethick', 'click', function() {
|
|
var control = $(this).parents('.mq-layermanager-element');
|
|
self._remove(control.data('layer'));
|
|
});
|
|
|
|
//binding events
|
|
map.bind("addlayer",
|
|
{widget:self,control:lmElement},
|
|
self._onLayerAdd);
|
|
|
|
map.bind("removelayer",
|
|
{widget:self,control:lmElement},
|
|
self._onLayerRemove);
|
|
|
|
map.bind("changelayer",
|
|
{widget:self,map:map,control:lmElement},
|
|
self._onLayerChange);
|
|
|
|
map.bind("moveend",
|
|
{widget:self,map:map,control:lmElement},
|
|
self._onMoveEnd);
|
|
},
|
|
_destroy: function() {
|
|
this.element.removeClass(' ui-widget ui-helper-clearfix ' +
|
|
'ui-corner-all')
|
|
.empty();
|
|
},
|
|
//functions that actually change things on the map
|
|
//call these from within the widget to do stuff on the map
|
|
//their actions will trigger events on the map and in return
|
|
//will trigger the _layer* functions
|
|
_add: function(map,layer) {
|
|
map.layers(layer);
|
|
},
|
|
|
|
_remove: function(layer) {
|
|
layer.remove();
|
|
},
|
|
|
|
_position: function(layer, pos) {
|
|
layer.position(pos);
|
|
},
|
|
|
|
_visible: function(layer, vis) {
|
|
layer.visible(vis);
|
|
},
|
|
|
|
_opacity: function(layer,opac) {
|
|
layer.opacity(opac);
|
|
},
|
|
|
|
//functions that change the widget
|
|
_layerAdded: function(widget, layer) {
|
|
var self = this;
|
|
var error = layer.legend().msg;
|
|
var url;
|
|
switch(error){
|
|
case '':
|
|
url =layer.legend().url;
|
|
if(url==''){error='No legend for this layer';}
|
|
break;
|
|
case 'E_ZOOMOUT':
|
|
error = 'Please zoom out to see this layer';
|
|
break;
|
|
case 'E_ZOOMIN':
|
|
error = 'Please zoom in to see this layer';
|
|
break;
|
|
case 'E_OUTSIDEBOX':
|
|
error = 'This layer is outside the current view';
|
|
break;
|
|
}
|
|
|
|
var layerElement = $.tmpl('mqLayerManagerElement',{
|
|
id: layer.id,
|
|
label: layer.label,
|
|
position: layer.position(),
|
|
visible: layer.visible(),
|
|
imgUrl: url,
|
|
opacity: layer.visible()?layer.opacity():0,
|
|
errMsg: error
|
|
})
|
|
// save layer layer in the DOM, so we can easily
|
|
// hide/show/delete the layer with live events
|
|
.data('layer', layer)
|
|
.data('self',self)
|
|
.prependTo(widget);
|
|
|
|
$(".mq-layermanager-element-slider", layerElement).slider({
|
|
max: 100,
|
|
step: 1,
|
|
value: layer.visible()?layer.opacity()*100:0,
|
|
slide: function(event, ui) {
|
|
var layer = layerElement.data('layer');
|
|
var self = layerElement.data('self');
|
|
self._opacity(layer,ui.value/100);
|
|
},
|
|
//using the slide event to check for the checkbox often gives errors.
|
|
change: function(event, ui) {
|
|
var layer = layerElement.data('layer');
|
|
var self = layerElement.data('self');
|
|
if(ui.value>=0.01) {
|
|
if(!layer.visible()){layer.visible(true);}
|
|
}
|
|
if(ui.value<0.01) {
|
|
if(layer.visible()){layer.visible(false);}
|
|
}
|
|
}
|
|
});
|
|
},
|
|
|
|
_layerRemoved: function(widget, id) {
|
|
var control = $("#mq-layermanager-element-"+id);
|
|
control.fadeOut(function() {
|
|
$(this).remove();
|
|
});
|
|
},
|
|
|
|
_layerPosition: function(widget, layer) {
|
|
var layerNodes = widget.element.find('.mq-layermanager-element');
|
|
var num = layerNodes.length-1;
|
|
var tmpNodes = [];
|
|
tmpNodes.length = layerNodes.length;
|
|
layerNodes.each(function() {
|
|
var layer = $(this).data('layer');
|
|
var pos = num-layer.position();
|
|
tmpNodes[pos]= this;
|
|
});
|
|
for (i=0;i<tmpNodes.length;i++) {
|
|
layerNodes.parent().append(tmpNodes[i]);
|
|
}
|
|
},
|
|
|
|
_layerVisible: function(widget, layer) {
|
|
var layerElement =
|
|
widget.element.find('#mq-layermanager-element-'+layer.id);
|
|
var checkbox =
|
|
layerElement.find('.mq-layermanager-element-vischeckbox');
|
|
checkbox[0].checked = layer.visible();
|
|
//update the opacity slider as well
|
|
var slider = layerElement.find('.mq-layermanager-element-slider');
|
|
var value = layer.visible()?layer.opacity()*100: 0;
|
|
slider.slider('value',value);
|
|
|
|
//update legend image
|
|
layerElement.find('.mq-layermanager-element-legend img').css(
|
|
{visibility:layer.visible()?true:'hidden'});
|
|
},
|
|
|
|
_layerOpacity: function(widget, layer) {
|
|
var layerElement = widget.element.find(
|
|
'#mq-layermanager-element-'+layer.id);
|
|
var slider = layerElement.find(
|
|
'.mq-layermanager-element-slider');
|
|
slider.slider('value',layer.opacity()*100);
|
|
//update legend image
|
|
layerElement.find(
|
|
'.mq-layermanager-element-legend img').css(
|
|
{opacity:layer.opacity()});
|
|
},
|
|
|
|
_moveEnd: function (widget,lmElement,map) {
|
|
lmElement.empty();
|
|
$.each(map.layers().reverse(), function(){
|
|
widget._layerAdded(lmElement, this);
|
|
});
|
|
},
|
|
|
|
//functions bind to the map events
|
|
_onLayerAdd: function(evt, layer) {
|
|
evt.data.widget._layerAdded(evt.data.control,layer);
|
|
},
|
|
|
|
_onLayerRemove: function(evt, layer) {
|
|
evt.data.widget._layerRemoved(evt.data.control,layer.id);
|
|
},
|
|
|
|
_onLayerChange: function(evt, layer, property) {
|
|
switch(property) {
|
|
case 'opacity':
|
|
evt.data.widget._layerOpacity(evt.data.widget,layer);
|
|
break;
|
|
case 'position':
|
|
evt.data.widget._layerPosition(evt.data.widget,layer);
|
|
break;
|
|
case 'visibility':
|
|
evt.data.widget._layerVisible(evt.data.widget,layer);
|
|
break;
|
|
}
|
|
},
|
|
_onMoveEnd: function(evt) {
|
|
evt.data.widget._moveEnd(evt.data.widget,evt.data.control,evt.data.map);
|
|
}
|
|
});
|
|
})(jQuery);
|