[OpenLayers-Users] Mouse stop

[Sveen Atle Frenvik (Geomatikk IKT)]

Oops, as I tried to say: I came across this problem a while ago, and came up with something like this (as was outlined by Shawn)

MouseOver = OpenLayers.Class({
ￜￜￜ map: null,
ￜￜￜ timer: null,ￜￜￜ 
ￜￜￜ prevXY: null,
ￜￜￜ 

ￜￜￜ /**
ￜￜￜￜ *
ￜￜￜￜ *
ￜￜￜￜ * @param map the map
ￜￜￜￜ * @param options options
ￜￜￜￜ */
ￜￜￜ initialize: function(map, options) {
ￜￜￜￜￜￜￜ OpenLayers.Util.extend(this, options);
ￜￜￜￜￜￜￜ this.map = map;

ￜￜￜ },

ￜￜￜ /**
ￜￜￜￜ *
ￜￜￜￜ */
ￜￜￜ activate: function () {
ￜￜￜￜￜￜￜ if (this.active) {
ￜￜￜￜￜￜￜￜￜￜￜ return false;
ￜￜￜￜￜￜￜ }
ￜￜￜￜￜￜￜ this.map.events.register("mousemove", this, this.mouseMoveListener);
ￜￜￜￜￜￜￜ this.active = true;
ￜￜￜￜￜￜￜ return true;
ￜￜￜ },


ￜￜￜ /**
ￜￜￜￜ *
ￜￜￜￜ */
ￜￜￜ deactivate: function (notremove) {
ￜￜￜￜￜￜￜ if (!notremove) {
ￜￜￜￜￜￜￜￜￜￜￜ this.removePopups();
ￜￜￜￜￜￜￜ }
ￜￜￜￜￜￜￜ if (this.active) {
ￜￜￜￜￜￜￜￜￜￜￜ this.map.events.unregister("mousemove", this, this.mouseMoveListener);
ￜￜￜￜￜￜￜￜￜￜￜ this.active = false;
ￜￜￜￜￜￜￜￜￜￜￜ return true;
ￜￜￜￜￜￜￜ }
ￜￜￜￜￜￜￜ return false;
ￜￜￜ },

ￜￜￜ /**
ￜￜￜￜ *
ￜￜￜￜ * Listens for mouse movements, and uses timers to detect a "mouse stop event"
ￜￜￜￜ *
ￜￜￜￜ * @param evt
ￜￜￜￜ */
ￜￜￜ mouseMoveListener: function(evt) {
ￜￜￜￜￜￜￜ //disable if shiftKey is presses (as we do not want to interfere with zooming)
ￜￜￜￜￜￜￜ if (!evt.shiftKey) {
ￜￜￜￜￜￜￜￜￜￜￜ if (this.timer) {
ￜￜￜￜￜￜￜￜￜￜￜￜￜￜￜ clearTimeout(this.timer);
ￜￜￜￜￜￜￜￜￜￜￜ }
ￜￜￜￜￜￜￜￜￜￜￜ that = this;

ￜￜￜￜￜￜￜￜￜￜￜ this.sleep(100, function () {
ￜￜￜￜￜￜￜￜￜￜￜￜￜￜￜ this.timer = null;
ￜￜￜￜￜￜￜￜￜￜￜￜￜￜￜ that.mouseStop(evt);
ￜￜￜￜￜￜￜￜￜￜￜ });
ￜￜￜￜￜￜￜ }
ￜￜￜ },

ￜￜￜ /**
ￜￜￜￜ * sleeps (used to detect mouse stops)
ￜￜￜￜ *
ￜￜￜￜ * @param ms millisecs to sleep
ￜￜￜￜ * @param callback callback function
ￜￜￜￜ */
ￜￜￜ sleep: function (ms, callback) {
ￜￜￜￜￜￜￜ this.timer = setTimeout(callback, ms);
ￜￜￜ },


ￜￜￜ /**
ￜￜￜￜ *
ￜￜￜￜ * Handles the "mouse stop event"
ￜￜￜￜ *
ￜￜￜￜ * @param evt the event (actually a mousemove event
ￜￜￜￜ */
ￜￜￜ mouseStop: function(evt) {
ￜￜￜￜￜￜￜ //stupid check because IE does not handle mousemove correctly (or i f*** things up)
ￜￜￜￜￜￜￜ if (this.prevXY) {
ￜￜￜￜￜￜￜￜￜￜￜ if (evt.xy.x != this.prevXY.x && evt.xy.y != this.prevXY.y) {
ￜￜￜ ￜￜￜ //get the position we stopped at, and current map scale
ￜￜￜￜￜￜￜￜￜￜￜￜￜￜￜ var pos = this.map.getLonLatFromPixel(evt.xy);
ￜￜￜ ￜￜￜ var scale = this.map.getScale(); 
ￜￜￜ ￜￜￜ console.log("mouse stopped at " + pos.toString() + ", scale = " + scale.toString());
ￜￜￜￜￜￜￜￜￜￜￜ }
ￜￜￜￜￜￜￜ }
ￜￜￜￜￜￜￜ //update this so that the check for if we actually have moved between two mouse stops works
ￜￜￜￜￜￜￜ //f*** ie!
ￜￜￜￜￜￜￜ this.prevXY = evt.xy;
ￜￜￜ }

});

On 02/25/2010 04:19 PM, Sveen Atle Frenvik (Geomatikk IKT) wrote: 

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-- 
Atle Frenvik Sveen
GIS Konsulent
Geomatikk IKT AS
tlf: 45 27 86 89
atle.frenvik.sveen at geomatikk.no
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