On Tue, Feb 24, 2009 at 04:54:31PM +0100, toni hernández wrote:
> hi,
>
> I am trying to create a new control called parallelLine.
>
> When I activate the control I get this error in Openlayers.js line 276
>
> this.events has no properties
> [Break on this error]
> this.active=true;this.events.triggerEvent("activate");return
> true;},deactivate:f...
>
> What am I missing? do I need to create an events variable? Isn't it expanded
> from control class?
You didn't call the parent's 'initialize', so the parent 'control' class
never got initialized.
OpenLayers.Control.prototype.initialize.apply(this, arguments);
Somewhere in your control.initialize.
>
> This is part of the code of my control (created based on ModifyFeature).
>
> OpenLayers.Control.ParallelLine = OpenLayers.Class(OpenLayers.Control, {
>
> geometryTypes: null,
> clickout: true,
> toggle: true,
> layer: null,
> feature: null,
> selectControl: null,
> handlers: null,
>
> initialize: function(layer, options) {
> this.layer = layer;
> var control = this;
>
> // configure the select control
> var selectOptions = {
> geometryTypes: this.geometryTypes,
> multiple: false,
> hover: true,
> clickout: this.clickout,
> toggle: this.toggle
> };
>
>
> this.selectControl = new OpenLayers.Control.SelectFeature(
> layer, selectOptions
> );
> this.layer.events.on({
> "beforefeatureselected": this.beforeSelectFeature,
> "featureselected": this.selectFeature,
> "featureunselected": this.unselectFeature,
> scope: this
> });
>
> // Regiter the events (sigte)
> this.layer.events.register("mousemove", this, this.mmove );
> this.layer.events.register("mousedown", this, this.mdown );
>
>
> // configure the keyboard handler
> var keyboardOptions = {
> keydown: this.handleKeypress
> };
> this.handlers = {
> keyboard: new OpenLayers.Handler.Keyboard(this, keyboardOptions)
> };
>
> }
>
> ....
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--
Christopher Schmidt
MetaCarta
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