minimap plugin - display a small map in the corner of the screen
This commit is contained in:
Jon Atkins
31
external/Control.MiniMap.css
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31
external/Control.MiniMap.css
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.leaflet-control-minimap {
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border:solid rgba(255, 255, 255, 0.7) 3px;
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box-shadow: 0 1px 7px #999;
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background: #f8f8f9;
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-moz-border-radius: 8px;
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-webkit-border-radius: 8px;
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border-radius: 8px;
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}
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.leaflet-control-minimap a {
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background-color: rgba(255, 255, 255, 0.75);
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background-position: 1px 2px;
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background-repeat: no-repeat;
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display: block;
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outline: none;
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z-index: 99999;
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}
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.leaflet-control-minimap a.minimized {
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background-position: 1px -18px;
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}
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.leaflet-control-minimap-toggle-display {
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background-image: url(@@INCLUDEIMAGE:images/minimap-toggle.png@@);
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border-radius: 4px 4px 4px 4px;
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height: 19px;
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width: 19px;
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position: absolute;
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bottom: 0;
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right: 0;
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}
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243
external/Control.MiniMap.js
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243
external/Control.MiniMap.js
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L.Control.MiniMap = L.Control.extend({
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options: {
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position: 'bottomright',
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toggleDisplay: false,
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zoomLevelOffset: -5,
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zoomLevelFixed: false,
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zoomAnimation: false,
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autoToggleDisplay: false,
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width: 150,
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height: 150
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},
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hideText: 'Hide MiniMap',
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showText: 'Show MiniMap',
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//layer is the map layer to be shown in the minimap
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initialize: function (layer, options) {
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L.Util.setOptions(this, options);
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this._layer = layer;
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},
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onAdd: function (map) {
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this._mainMap = map;
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//Creating the container and stopping events from spilling through to the main map.
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this._container = L.DomUtil.create('div', 'leaflet-control-minimap');
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this._container.style.width = this.options.width + 'px';
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this._container.style.height = this.options.height + 'px';
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L.DomEvent.disableClickPropagation(this._container);
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L.DomEvent.on(this._container, 'mousewheel', L.DomEvent.stopPropagation);
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this._miniMap = new L.Map(this._container,
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{
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attributionControl: false,
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zoomControl: false,
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zoomAnimation: this.options.zoomAnimation,
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autoToggleDisplay: this.options.autoToggleDisplay,
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touchZoom: !this.options.zoomLevelFixed,
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scrollWheelZoom: !this.options.zoomLevelFixed,
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doubleClickZoom: !this.options.zoomLevelFixed,
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boxZoom: !this.options.zoomLevelFixed,
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crs: map.options.crs
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});
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this._miniMap.addLayer(this._layer);
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//These bools are used to prevent infinite loops of the two maps notifying each other that they've moved.
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this._mainMapMoving = false;
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this._miniMapMoving = false;
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//Keep a record of this to prevent auto toggling when the user explicitly doesn't want it.
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this._userToggledDisplay = false;
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this._minimized = false;
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if (this.options.toggleDisplay) {
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this._addToggleButton();
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}
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this._miniMap.whenReady(L.Util.bind(function () {
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this._aimingRect = L.rectangle(this._mainMap.getBounds(), {color: "#ff7800", weight: 1, clickable: false}).addTo(this._miniMap);
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this._shadowRect = L.rectangle(this._mainMap.getBounds(), {color: "#000000", weight: 1, clickable: false,opacity:0,fillOpacity:0}).addTo(this._miniMap);
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this._mainMap.on('moveend', this._onMainMapMoved, this);
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this._mainMap.on('move', this._onMainMapMoving, this);
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this._miniMap.on('movestart', this._onMiniMapMoveStarted, this);
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this._miniMap.on('move', this._onMiniMapMoving, this);
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this._miniMap.on('moveend', this._onMiniMapMoved, this);
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}, this));
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return this._container;
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},
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addTo: function (map) {
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L.Control.prototype.addTo.call(this, map);
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this._miniMap.setView(this._mainMap.getCenter(), this._decideZoom(true));
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this._setDisplay(this._decideMinimized());
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return this;
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},
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onRemove: function (map) {
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this._mainMap.off('moveend', this._onMainMapMoved, this);
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this._mainMap.off('move', this._onMainMapMoving, this);
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this._miniMap.off('moveend', this._onMiniMapMoved, this);
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this._miniMap.removeLayer(this._layer);
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},
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_addToggleButton: function () {
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this._toggleDisplayButton = this.options.toggleDisplay ? this._createButton(
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'', this.hideText, 'leaflet-control-minimap-toggle-display', this._container, this._toggleDisplayButtonClicked, this) : undefined;
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},
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_createButton: function (html, title, className, container, fn, context) {
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var link = L.DomUtil.create('a', className, container);
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link.innerHTML = html;
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link.href = '#';
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link.title = title;
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var stop = L.DomEvent.stopPropagation;
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L.DomEvent
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.on(link, 'click', stop)
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.on(link, 'mousedown', stop)
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.on(link, 'dblclick', stop)
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.on(link, 'click', L.DomEvent.preventDefault)
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.on(link, 'click', fn, context);
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return link;
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},
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_toggleDisplayButtonClicked: function () {
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this._userToggledDisplay = true;
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if (!this._minimized) {
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this._minimize();
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this._toggleDisplayButton.title = this.showText;
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}
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else {
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this._restore();
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this._toggleDisplayButton.title = this.hideText;
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}
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},
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_setDisplay: function (minimize) {
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if (minimize != this._minimized) {
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if (!this._minimized) {
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this._minimize();
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}
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else {
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this._restore();
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}
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}
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},
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_minimize: function () {
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// hide the minimap
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if (this.options.toggleDisplay) {
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this._container.style.width = '19px';
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this._container.style.height = '19px';
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this._toggleDisplayButton.className += ' minimized';
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}
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else {
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this._container.style.display = 'none';
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}
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this._minimized = true;
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},
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_restore: function () {
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if (this.options.toggleDisplay) {
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this._container.style.width = this.options.width + 'px';
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this._container.style.height = this.options.height + 'px';
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this._toggleDisplayButton.className = this._toggleDisplayButton.className
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.replace(/(?:^|\s)minimized(?!\S)/g, '');
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}
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else {
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this._container.style.display = 'block';
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}
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this._minimized = false;
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},
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_onMainMapMoved: function (e) {
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if (!this._miniMapMoving) {
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this._mainMapMoving = true;
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this._miniMap.setView(this._mainMap.getCenter(), this._decideZoom(true));
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this._setDisplay(this._decideMinimized());
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} else {
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this._miniMapMoving = false;
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}
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this._aimingRect.setBounds(this._mainMap.getBounds());
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},
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_onMainMapMoving: function (e) {
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this._aimingRect.setBounds(this._mainMap.getBounds());
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},
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_onMiniMapMoveStarted:function (e) {
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var lastAimingRect = this._aimingRect.getBounds();
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var sw = this._miniMap.latLngToContainerPoint(lastAimingRect.getSouthWest());
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var ne = this._miniMap.latLngToContainerPoint(lastAimingRect.getNorthEast());
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this._lastAimingRectPosition = {sw:sw,ne:ne};
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},
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_onMiniMapMoving: function (e) {
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if (!this._mainMapMoving && this._lastAimingRectPosition) {
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this._shadowRect.setBounds(new L.LatLngBounds(this._miniMap.containerPointToLatLng(this._lastAimingRectPosition.sw),this._miniMap.containerPointToLatLng(this._lastAimingRectPosition.ne)));
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this._shadowRect.setStyle({opacity:1,fillOpacity:0.3});
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}
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},
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_onMiniMapMoved: function (e) {
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if (!this._mainMapMoving) {
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this._miniMapMoving = true;
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this._mainMap.setView(this._miniMap.getCenter(), this._decideZoom(false));
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this._shadowRect.setStyle({opacity:0,fillOpacity:0});
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} else {
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this._mainMapMoving = false;
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}
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},
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_decideZoom: function (fromMaintoMini) {
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if (!this.options.zoomLevelFixed) {
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if (fromMaintoMini)
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return this._mainMap.getZoom() + this.options.zoomLevelOffset;
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else
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return this._miniMap.getZoom() - this.options.zoomLevelOffset;
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} else {
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if (fromMaintoMini)
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return this.options.zoomLevelFixed;
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else
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return this._mainMap.getZoom();
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}
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},
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_decideMinimized: function () {
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if (this._userToggledDisplay) {
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return this._minimized;
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}
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if (this.options.autoToggleDisplay) {
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if (this._mainMap.getBounds().contains(this._miniMap.getBounds())) {
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return true;
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}
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return false;
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}
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return this._minimized;
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}
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});
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L.Map.mergeOptions({
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miniMapControl: false
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});
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L.Map.addInitHook(function () {
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if (this.options.miniMapControl) {
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this.miniMapControl = (new L.Control.MiniMap()).addTo(this);
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}
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});
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L.control.minimap = function (options) {
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return new L.Control.MiniMap(options);
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};
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