3520c32140
from panels before calling innerHTML. This resolves the memory error. All tests pass in FF and IE, and there are no obvious side effects I can imagine; committing. Patch from aabt, r=me, (Closes #2745) git-svn-id: http://svn.openlayers.org/trunk/openlayers@10665 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
334 lines
11 KiB
JavaScript
334 lines
11 KiB
JavaScript
/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
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* license. See http://svn.openlayers.org/trunk/openlayers/license.txt for the
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* full text of the license. */
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/**
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* @requires OpenLayers/Control.js
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*/
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/**
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* Class: OpenLayers.Control.Panel
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* The Panel control is a container for other controls. With it toolbars
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* may be composed.
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*
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* Inherits from:
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* - <OpenLayers.Control>
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*/
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OpenLayers.Control.Panel = OpenLayers.Class(OpenLayers.Control, {
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/**
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* Property: controls
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* {Array(<OpenLayers.Control>)}
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*/
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controls: null,
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/**
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* APIProperty: autoActivate
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* {Boolean} Activate the control when it is added to a map. Default is
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* true.
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*/
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autoActivate: true,
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/**
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* APIProperty: defaultControl
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* {<OpenLayers.Control>} The control which is activated when the control is
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* activated (turned on), which also happens at instantiation.
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*/
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defaultControl: null,
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/**
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* Constructor: OpenLayers.Control.Panel
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* Create a new control panel.
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*
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* Each control in the panel is represented by an icon. When clicking
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* on an icon, the <activateControl> method is called.
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*
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* Specific properties for controls on a panel:
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* type - {Number} One of <OpenLayers.Control.TYPE_TOOL>,
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* <OpenLayers.Control.TYPE_TOGGLE>, <OpenLayers.Control.TYPE_BUTTON>.
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* If not provided, <OpenLayers.Control.TYPE_TOOL> is assumed.
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* title - {string} Text displayed when mouse is over the icon that
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* represents the control.
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*
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* The <OpenLayers.Control.type> of a control determines the behavior when
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* clicking its icon:
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* <OpenLayers.Control.TYPE_TOOL> - The control is activated and other
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* controls of this type in the same panel are deactivated. This is
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* the default type.
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* <OpenLayers.Control.TYPE_TOGGLE> - The active state of the control is
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* toggled.
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* <OpenLayers.Control.TYPE_BUTTON> - The
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* <OpenLayers.Control.Button.trigger> method of the control is called,
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* but its active state is not changed.
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*
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* If a control is <OpenLayers.Control.active>, it will be drawn with the
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* olControl[Name]ItemActive class, otherwise with the
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* olControl[Name]ItemInactive class.
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*
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* Parameters:
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* options - {Object} An optional object whose properties will be used
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* to extend the control.
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*/
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initialize: function(options) {
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OpenLayers.Control.prototype.initialize.apply(this, [options]);
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this.controls = [];
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},
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/**
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* APIMethod: destroy
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*/
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destroy: function() {
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OpenLayers.Control.prototype.destroy.apply(this, arguments);
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for(var i = this.controls.length - 1 ; i >= 0; i--) {
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if(this.controls[i].events) {
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this.controls[i].events.un({
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"activate": this.redraw,
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"deactivate": this.redraw,
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scope: this
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});
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}
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OpenLayers.Event.stopObservingElement(this.controls[i].panel_div);
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this.controls[i].panel_div = null;
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}
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},
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/**
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* APIMethod: activate
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*/
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activate: function() {
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if (OpenLayers.Control.prototype.activate.apply(this, arguments)) {
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for(var i=0, len=this.controls.length; i<len; i++) {
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if (this.controls[i] == this.defaultControl) {
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this.controls[i].activate();
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}
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}
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this.redraw();
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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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* APIMethod: deactivate
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*/
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deactivate: function() {
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if (OpenLayers.Control.prototype.deactivate.apply(this, arguments)) {
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for(var i=0, len=this.controls.length; i<len; i++) {
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this.controls[i].deactivate();
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}
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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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* Method: draw
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*
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* Returns:
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* {DOMElement}
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*/
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draw: function() {
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OpenLayers.Control.prototype.draw.apply(this, arguments);
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for (var i=0, len=this.controls.length; i<len; i++) {
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this.map.addControl(this.controls[i]);
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this.controls[i].deactivate();
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this.controls[i].events.on({
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"activate": this.redraw,
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"deactivate": this.redraw,
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scope: this
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});
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}
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return this.div;
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},
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/**
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* Method: redraw
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*/
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redraw: function() {
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if (this.div.children.length>0) {
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for (var l=this.div.children.length, i=l-1 ; i>=0 ; i--) {
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this.div.removeChild(this.div.children[i]);
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}
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}
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this.div.innerHTML = "";
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if (this.active) {
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for (var i=0, len=this.controls.length; i<len; i++) {
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var element = this.controls[i].panel_div;
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if (this.controls[i].active) {
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element.className = this.controls[i].displayClass + "ItemActive";
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} else {
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element.className = this.controls[i].displayClass + "ItemInactive";
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}
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this.div.appendChild(element);
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}
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}
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},
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/**
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* APIMethod: activateControl
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* This method is called when the user click on the icon representing a
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* control in the panel.
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*
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* Parameters:
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* control - {<OpenLayers.Control>}
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*/
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activateControl: function (control) {
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if (!this.active) { return false; }
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if (control.type == OpenLayers.Control.TYPE_BUTTON) {
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control.trigger();
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this.redraw();
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return;
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}
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if (control.type == OpenLayers.Control.TYPE_TOGGLE) {
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if (control.active) {
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control.deactivate();
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} else {
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control.activate();
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}
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this.redraw();
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return;
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}
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var c;
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for (var i=0, len=this.controls.length; i<len; i++) {
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c = this.controls[i];
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if (c != control &&
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(c.type === OpenLayers.Control.TYPE_TOOL || c.type == null)) {
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c.deactivate();
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}
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}
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control.activate();
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},
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/**
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* APIMethod: addControls
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* To build a toolbar, you add a set of controls to it. addControls
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* lets you add a single control or a list of controls to the
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* Control Panel.
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*
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* Parameters:
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* controls - {<OpenLayers.Control>} Controls to add in the panel.
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*/
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addControls: function(controls) {
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if (!(controls instanceof Array)) {
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controls = [controls];
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}
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this.controls = this.controls.concat(controls);
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// Give each control a panel_div which will be used later.
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// Access to this div is via the panel_div attribute of the
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// control added to the panel.
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// Also, stop mousedowns and clicks, but don't stop mouseup,
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// since they need to pass through.
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for (var i=0, len=controls.length; i<len; i++) {
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var element = document.createElement("div");
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controls[i].panel_div = element;
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if (controls[i].title != "") {
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controls[i].panel_div.title = controls[i].title;
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}
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OpenLayers.Event.observe(controls[i].panel_div, "click",
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OpenLayers.Function.bind(this.onClick, this, controls[i]));
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OpenLayers.Event.observe(controls[i].panel_div, "dblclick",
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OpenLayers.Function.bind(this.onDoubleClick, this, controls[i]));
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OpenLayers.Event.observe(controls[i].panel_div, "mousedown",
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OpenLayers.Function.bindAsEventListener(OpenLayers.Event.stop));
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}
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if (this.map) { // map.addControl() has already been called on the panel
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for (var i=0, len=controls.length; i<len; i++) {
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this.map.addControl(controls[i]);
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controls[i].deactivate();
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controls[i].events.on({
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"activate": this.redraw,
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"deactivate": this.redraw,
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scope: this
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});
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}
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this.redraw();
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}
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},
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/**
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* Method: onClick
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*/
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onClick: function (ctrl, evt) {
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OpenLayers.Event.stop(evt ? evt : window.event);
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this.activateControl(ctrl);
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},
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/**
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* Method: onDoubleClick
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*/
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onDoubleClick: function(ctrl, evt) {
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OpenLayers.Event.stop(evt ? evt : window.event);
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},
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/**
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* APIMethod: getControlsBy
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* Get a list of controls with properties matching the given criteria.
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*
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* Parameter:
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* property - {String} A control property to be matched.
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* match - {String | Object} A string to match. Can also be a regular
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* expression literal or object. In addition, it can be any object
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* with a method named test. For reqular expressions or other, if
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* match.test(control[property]) evaluates to true, the control will be
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* included in the array returned. If no controls are found, an empty
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* array is returned.
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*
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* Returns:
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* {Array(<OpenLayers.Control>)} A list of controls matching the given criteria.
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* An empty array is returned if no matches are found.
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*/
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getControlsBy: function(property, match) {
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var test = (typeof match.test == "function");
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var found = OpenLayers.Array.filter(this.controls, function(item) {
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return item[property] == match || (test && match.test(item[property]));
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});
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return found;
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},
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/**
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* APIMethod: getControlsByName
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* Get a list of contorls with names matching the given name.
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*
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* Parameter:
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* match - {String | Object} A control name. The name can also be a regular
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* expression literal or object. In addition, it can be any object
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* with a method named test. For reqular expressions or other, if
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* name.test(control.name) evaluates to true, the control will be included
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* in the list of controls returned. If no controls are found, an empty
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* array is returned.
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*
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* Returns:
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* {Array(<OpenLayers.Control>)} A list of controls matching the given name.
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* An empty array is returned if no matches are found.
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*/
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getControlsByName: function(match) {
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return this.getControlsBy("name", match);
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},
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/**
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* APIMethod: getControlsByClass
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* Get a list of controls of a given type (CLASS_NAME).
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*
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* Parameter:
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* match - {String | Object} A control class name. The type can also be a
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* regular expression literal or object. In addition, it can be any
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* object with a method named test. For reqular expressions or other,
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* if type.test(control.CLASS_NAME) evaluates to true, the control will
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* be included in the list of controls returned. If no controls are
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* found, an empty array is returned.
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*
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* Returns:
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* {Array(<OpenLayers.Control>)} A list of controls matching the given type.
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* An empty array is returned if no matches are found.
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*/
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getControlsByClass: function(match) {
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return this.getControlsBy("CLASS_NAME", match);
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},
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CLASS_NAME: "OpenLayers.Control.Panel"
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});
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