3ca974acec
svn merge sandbox/vector-2.4/@2307 sandbox/vector-2.4/@HEAD trunk/openlayers/ git-svn-id: http://svn.openlayers.org/trunk/openlayers@2803 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
123 lines
3.3 KiB
JavaScript
123 lines
3.3 KiB
JavaScript
/* Copyright (c) 2006 MetaCarta, Inc., published under a modified BSD license.
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* See http://svn.openlayers.org/trunk/openlayers/repository-license.txt
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* for the full text of the license. */
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/**
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* Handler to draw a path on the map. Polygon is displayed on mouse down,
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* moves on mouse move, and is finished on mouse up.
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*
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* @class
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* @requires OpenLayers/Handler.js
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*/
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OpenLayers.Handler.Select = OpenLayers.Class.create();
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OpenLayers.Handler.Select.prototype =
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OpenLayers.Class.inherit(OpenLayers.Handler, {
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/**
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* @type {Int}
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*/
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layerIndex: null,
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/**
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* @constructor
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*
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* @param {OpenLayers.Control} control
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* @param {Array} layers List of OpenLayers.Layer.Vector
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* @param {Array} callbacks An object with a 'over' property whos value is
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* a function to be called when the mouse is over
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* a feature. The callback should expect to recieve
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* a single argument, the geometry.
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* @param {Object} options
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*/
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initialize: function(control, layer, callbacks, options) {
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OpenLayers.Handler.prototype.initialize.apply(this, [control, callbacks, options]);
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this.layer = layer;
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},
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/**
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* Handle mouse down. Call the "up" callback if down on a feature.
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*
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* @param {Event} evt
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*/
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mousedown: function(evt) {
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return this.select('down', evt);
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},
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/**
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* Handle mouse moves. Call the "over" callback if over a feature.
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*
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* @param {Event} evt
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*/
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mousemove: function(evt) {
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this.select('move', evt);
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return true;
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},
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/**
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* Handle mouse moves. Call the "down" callback if up on a feature.
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*
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* @param {Event} evt
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*/
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mouseup: function(evt) {
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return this.select('up', evt);
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},
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/**
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* Capture double-clicks.
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*
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*/
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dblclick: function(evt) {
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return false;
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},
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/**
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* Trigger the appropriate callback if a feature is under the mouse.
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*
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* @param {String} type Callback key
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*/
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select: function(type, evt) {
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var geometry = this.layer.renderer.getGeometryFromEvent(evt);
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if(geometry) {
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if (geometry.parent) {
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geometry = geometry.parent;
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}
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this.callback(type, [geometry]);
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return false; // stop event propagation
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}
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return true;
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},
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/**
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* Turn on the handler. Returns false if the handler was already active.
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*
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* @type {Boolean}
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*/
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activate: function() {
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if(OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
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this.layerIndex = this.layer.div.style.zIndex;
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this.layer.div.style.zIndex = this.map.Z_INDEX_BASE['Popup'] - 1;
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return true;
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} else {
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return false;
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}
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},
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/**
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* Turn onf the handler. Returns false if the handler was already active.
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*
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* @type {Boolean}
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*/
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deactivate: function() {
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if(OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
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this.layer.div.style.zIndex = this.layerIndex;
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return true;
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} else {
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return false;
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}
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},
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/** @final @type String */
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CLASS_NAME: "OpenLayers.Handler.Select"
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});
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