/*
Scripts to create interactive selectionLists/Dropdown boxes in SVG using ECMA script
Copyright (C) <2006> <Andreas Neumann>
Version 1.4, 2006-07-18
[email protected]
http://www.carto.net/
http://www.carto.net/neumann/
Credits:
* Initial code was taken from Michel Hirtzler --> pilat.free.fr (thanks!)
* Thanks also to many people of [email protected]
* Suggestions by Bruce Rindahl
----
Documentation: http://www.carto.net/papers/svg/gui/selectionlist/
----
current version: 1.4
version history:
0.99 (2004-10-26)
initial version
1.0 (2005-09-15)
allow undefined values in callback function for selectionlists that need not react on changes (suggestion by Bruce Rindahl)
allow selectionlist to be placed in a transformed group
now also works in MozillaSVG (due to changes in mapApp.js)
1.1 (2005-09-28)
removed "string" option in functionToCall (not important any more). function and object should be good enough
timer object from http://www.codingforums.com/showthread.php?s=&threadid=10531 is now used; attention: you need to link this script as well!
due to the new timer object we can now also mouse down and scroll more than one entry until we mouseup again, previously one had to click for forwarding each individual element
1.2 (2005-10-24)
removed style attributes and replaced them with individual XML attributes
initial tests on Opera 9 TP1, it seems to work except for the scrolling - due to a mouse-move event bug
1.2.1 (2005-02-07)
upgraded the documentation and fixed documentation errors
1.2.2 (2006-02-16)
added option to open selectionList to the top of the original box, this is useful for layouts where the selectionList is at the bottom of a page
added option to always put the selectionList on the top of it's parent group after activation in order to force the geometry to be on the top of all other geometry within the same group
improved background rectangle: these are now two rectangles: one on the bottom for the fill, one on the top for stroking
tested with Opera 9 TP2, works now fine, except keyboard input
1.2.3 (2006-02-21)
removed dependency on replaceSpecialChars (in file helper_functions.js) as this is not really needed in a true utf8 environment.
improved key event handling. People can now enter more than one key (within one second for each consequent key) and the list will jump to entries that match the keys; key events now also work in opera 9+ - however they sometimes collide with keyboard shortcuts.
1.3 (2006-03-11)
changed parameters of constructor (styling system): now an array of literals containing presentation attributes. Not hardcoded in selectionList.js anymore. Added check for number of arguments.
1.4 (2006-07-18)
added additional constructor parameter "parentNode", changed groupId to id, added methods .resize(width) and .moveTo(x,y)
improved scrolling (now also possible outside of the scrollbar, once the mouse is down)
-------
This ECMA script library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library (lesser_gpl.txt); if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
----
original document site: http://www.carto.net/papers/svg/gui/selectionlist/
Please contact the author in case you want to use code or ideas commercially.
If you use this code, please include this copyright header, the included full
LGPL 2.1 text and read the terms provided in the LGPL 2.1 license
(http://www.gnu.org/copyleft/lesser.txt)
-------------------------------
If you wish, you can modify parameters (such as "look and feel") in the function "selectionList" (constructor).
You can adapt colors, fonts, cellpaddings, etc.
-------------------------------
Please report bugs and send improvements to [email protected]
If you use this control, please link to the original (http://www.carto.net/papers/svg/gui/selectionlist/)
somewhere in the source-code-comment or the "about" of your project and give credits, thanks!
*/
function selectionList(id,parentNode,elementsArray,width,xOffset,yOffset,cellHeight,textPadding,heightNrElements,textStyles,boxStyles,scrollbarStyles,smallrectStyles,highlightStyles,triangleStyles,preSelect,openAbove,putOnTopOfParent,functionToCall) {
var nrArguments = 19;
var createSelbox= true;
if (arguments.length == nrArguments) {
//get constructor variables
this.id = id; //the id or node reference of the group where the
this.parentNode = parentNode; //can be of type string (id) or node reference (svg or g node)
this.elementsArray = elementsArray; //the array containing the text elements of the selectionList
this.width = width; //width of the selectionList in viewBox coordinates
this.xOffset = xOffset; //upper left corner (xOffset) of selection list in viewBox coordinates
this.yOffset = yOffset; //upper left corner (yOffset) of selection list in viewBox coordinates
this.cellHeight = cellHeight; //cellHeight in viewBox coordinates
this.heightNrElements = heightNrElements; //nr of elements for unfolded selectionList (number, integer)
this.textStyles = textStyles; //array of literals containing presentation attributes for text
if (!this.textStyles["font-size"]) {
this.textStyles["font-size"] = "11";
}
this.boxStyles = boxStyles; //array of literals containing presentation attributes for the sel box
if (!this.boxStyles["fill"]) {
this.boxStyles["fill"] = "white"; //this fill value is also used for boxes under indiv. text elements (unselected status)
}
if (!this.boxStyles["stroke"]) {
this.boxStyles["stroke"] = "dimgray";
}
if (!this.boxStyles["stroke-width"]) {
this.boxStyles["stroke-width"] = 1;
}
this.scrollbarStyles = scrollbarStyles; //array of literals containing presentation attributes for the scrollbar
this.smallrectStyles = smallrectStyles; //array of literals containing presentation attributes for the small rectangle next to selectbox
this.highlightStyles = highlightStyles; //array of literals containing presentation attributes for the highlighted rectangles
this.triangleStyles = triangleStyles; //array of literals containing presentation attributes for the triangle in the selectionList, also applies to fill of scroller
this.preSelect = preSelect;
this.openAbove = openAbove;
this.putOnTopOfParent = putOnTopOfParent;
this.functionToCall = functionToCall;
//calculate other values
this.triangleFourth = Math.round(this.cellHeight / 4); //this is only used internally
this.textPadding = textPadding; //this is relative to the left of the cell
this.textPaddingVertical = this.cellHeight - (this.cellHeight - this.textStyles["font-size"]) * 0.7; //this is relative to the top of the cell
this.scrollerMinHeight = this.cellHeight * 0.5; //minimal height of the scroller rect
//references
this.scrollBar = undefined; //later a reference to the scrollbar rectangle
//status variables
this.activeSelection = this.preSelect; //holds currently selected index value
this.listOpen = false; //status folded=false, open=true - previously been sLselectionVisible
this.curLowerIndex = this.preSelect; //this value is adapted if the user moves scrollbar
this.scrollStep = 0; //y-value to go for one element
this.scrollerHeight = 0; //height of dragable scroller bar
this.scrollActive = false; //determines if scrolling per up/down button is active
this.panY = false; //stores the y value of event
this.scrollCumulus = 0; //if value is less than a scrollstep we need to accumulate scroll values
this.scrollDir = ""; //later holds "up" and "down"
this.exists = true; //true means it exists, gets value false if method "removeSelectionList" is called
this.pressedKeys = ""; //stores key events (pressed char values)
this.keyTimer = undefined; //timer for resetting character strings after a given time period
}
else {
createSelbox = false;
alert("Error ("+id+"): wrong nr of arguments! You have to pass over "+nrArguments+" parameters.");
}
if (createSelbox) {
//timer stuff
this.timer = new Timer(this); //a Timer instance for calling the functionToCall
this.timerMs = 200; //a constant of this object that is used in conjunction with the timer - functionToCall is called after 200 ms
//createSelectionList
this.createSelectionList();
}
else {
alert("Could not create selectionlist with id '"+id+"' due to errors in the constructor parameters");
}
}
selectionList.prototype.createSelectionList = function() {
var result = this.testParent();
if (result) {
//initial Rect, visible at the beginning
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset);
node.setAttributeNS(null,"y",this.yOffset);
node.setAttributeNS(null,"width",this.width);
node.setAttributeNS(null,"height",this.cellHeight);
for (var attrib in this.boxStyles) {
node.setAttributeNS(null,attrib,this.boxStyles[attrib]);
}
node.setAttributeNS(null,"id","selRect_"+this.id);
node.addEventListener("click", this, false);
this.parentGroup.appendChild(node);
//initial text
this.selectedText = document.createElementNS(svgNS,"text");
this.selectedText.setAttributeNS(null,"x",this.xOffset + this.textPadding);
this.selectedText.setAttributeNS(null,"y",this.yOffset + this.textPaddingVertical);
var value = "";
for (var attrib in this.textStyles) {
value = this.textStyles[attrib];
if (attrib == "font-size") {
value += "px";
}
this.selectedText.setAttributeNS(null,attrib,value);
}
this.selectedText.setAttributeNS(null,"pointer-events","none");
var selectionText = document.createTextNode(this.elementsArray[this.activeSelection]);
this.selectedText.appendChild(selectionText);
this.parentGroup.appendChild(this.selectedText);
//small Rectangle to the right, onclick unfolds the selectionList
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
node.setAttributeNS(null,"y",this.yOffset);
node.setAttributeNS(null,"width",this.cellHeight);
node.setAttributeNS(null,"height",this.cellHeight);
for (var attrib in this.smallrectStyles) {
node.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
node.setAttributeNS(null,"id","selPulldown_"+this.id);
node.addEventListener("click", this, false);
this.parentGroup.appendChild(node);
//triangle
var node=document.createElementNS(svgNS,"path");
var myTrianglePath = "M"+(this.xOffset + this.width - 3 * this.triangleFourth)+" "+(this.yOffset + this.triangleFourth)+" L"+(this.xOffset + this.width - this.triangleFourth)+" "+(this.yOffset + this.triangleFourth)+" L"+(this.xOffset + this.width - 2 * this.triangleFourth)+" "+(this.yOffset + 3 * this.triangleFourth)+" Z";
node.setAttributeNS(null,"d",myTrianglePath);
for (var attrib in this.triangleStyles) {
node.setAttributeNS(null,attrib,this.triangleStyles[attrib]);
}
node.setAttributeNS(null,"id","selTriangle_"+this.id);
node.setAttributeNS(null,"pointer-events","none");
this.parentGroup.appendChild(node);
//rectangle below unfolded selectBox, at begin invisible
this.rectBelowBox = document.createElementNS(svgNS,"rect");
this.rectBelowBox.setAttributeNS(null,"x",this.xOffset);
this.rectBelowBox.setAttributeNS(null,"y",this.yOffset + this.cellHeight);
this.rectBelowBox.setAttributeNS(null,"width",this.width - this.cellHeight);
this.rectBelowBox.setAttributeNS(null,"height",0);
this.rectBelowBox.setAttributeNS(null,"fill",this.boxStyles["fill"]);
this.rectBelowBox.setAttributeNS(null,"display","none");
this.parentGroup.appendChild(this.rectBelowBox);
//rectangle below unfolded selectBox, at begin invisible
this.rectAboveBox = document.createElementNS(svgNS,"rect");
this.rectAboveBox.setAttributeNS(null,"x",this.xOffset);
this.rectAboveBox.setAttributeNS(null,"y",this.yOffset + this.cellHeight);
this.rectAboveBox.setAttributeNS(null,"width",this.width - this.cellHeight);
this.rectAboveBox.setAttributeNS(null,"height",0);
this.rectAboveBox.setAttributeNS(null,"fill","none");
this.rectAboveBox.setAttributeNS(null,"stroke",this.boxStyles["stroke"]);
this.rectAboveBox.setAttributeNS(null,"stroke-width",this.boxStyles["stroke-width"]);
this.rectAboveBox.setAttributeNS(null,"display","none");
this.parentGroup.appendChild(this.rectAboveBox);
}
else {
alert("could not create or reference 'parentNode' of selectionList with id '"+this.id+"'");
}
}
//test if parent group exists or create a new group at the end of the file
selectionList.prototype.testParent = function() {
//test if of type object
var nodeValid = false;
if (typeof(this.parentNode) == "object") {
if (this.parentNode.nodeName == "svg" || this.parentNode.nodeName == "g") {
this.parentGroup = this.parentNode;
nodeValid = true;
}
}
else if (typeof(this.parentNode) == "string") {
//first test if Windows group exists
if (!document.getElementById(this.parentNode)) {
this.parentGroup = document.createElementNS(svgNS,"g");
this.parentGroup.setAttributeNS(null,"id",this.parentNode);
document.documentElement.appendChild(this.parentGroup);
nodeValid = true;
}
else {
this.parentGroup = document.getElementById(this.parentNode);
nodeValid = true;
}
}
return nodeValid;
}
selectionList.prototype.handleEvent = function(evt) {
var el = evt.currentTarget;
var callerId = el.getAttributeNS(null,"id");
var myRegExp = new RegExp(this.id);
if (evt.type == "click") {
if (myRegExp.test(callerId)) {
if (callerId.match(/\bselPulldown|\bselRect/)) {
if (this.listOpen == false) {
if (this.putOnTopOfParent) {
//put list on top of the parent group (bottom in the DOM tree)
this.parentGroup.parentNode.appendChild(this.parentGroup);
}
this.unfoldList();
this.listOpen = true;
}
else {
this.foldList();
this.listOpen = false;
evt.stopPropagation();
}
}
if (callerId.match(/\bselHighlightSelection_/)) {
this.selectAndClose(evt);
evt.stopPropagation();
}
}
else {
//case that the event comes from the documentRoot element
//but not from the selectionList itself
if (!myRegExp.test(evt.target.getAttributeNS(null,"id"))) {
this.foldList();
this.listOpen = false;
}
}
}
if (evt.type == "mouseover") {
if (myRegExp.test(callerId)) {
if (callerId.match(/\bselHighlightSelection_/)) {
for (var attrib in this.highlightStyles) {
el.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
}
}
}
if (evt.type == "mouseout") {
if (myRegExp.test(callerId)) {
if (callerId.match(/\bselHighlightSelection_/) ){
el.setAttributeNS(null,"fill",this.boxStyles["fill"]);
}
if (callerId.match(/\bselScrollbarRect_/)) {
this.scrollBarMove(evt);
}
}
}
if (evt.type == "mousedown") {
if (myRegExp.test(callerId)) {
if (callerId.match(/\bselScrollUpperRect_|\bselScrollLowerRect/)) {
this.scrollDir = "down";
this.scrollActive = true;
if (callerId.match(/UpperRect/)) {
this.scrollDir = "up";
}
this.scroll(this.scrollDir,1,true); //1 is one element to scroll, true says that we should move scrollbar
this.timer.setTimeout("scrollPerButton",400)
}
if (callerId.match(/\bselScrollbarRect_/)) {
//add events to document.documentElement
document.documentElement.addEventListener("mousemove",this,false);
document.documentElement.addEventListener("mouseup",this,false);
this.scrollBarMove(evt);
}
}
}
if (evt.type == "mouseup") {
if (myRegExp.test(callerId)) {
if (callerId.match(/\bselScrollUpperRect_|\bselScrollLowerRect/)) {
this.scrollActive = false;
}
}
if (el.nodeName == "svg" || el.nodeName == "svg:svg") {
document.documentElement.removeEventListener("mousemove",this,false);
document.documentElement.removeEventListener("mouseup",this,false);
this.scrollBarMove(evt);
}
}
if (evt.type == "mousemove") {
if (el.nodeName == "svg" || el.nodeName == "svg:svg") {
this.scrollBarMove(evt);
}
} //add keypress event
if (evt.type == "keypress") {
if (evt.charCode) {
var character = String.fromCharCode(evt.charCode).toLowerCase();
}
else {
//case opera and others
var character = String.fromCharCode(evt.keyCode).toLowerCase();
if (evt.keyCode == 0 || evt.keyCode == 16 || evt.keyCode == 17 || evt.keyCode == 18) {
//shift key
character = "";
}
}
this.pressedKeys += character;
if (character.length > 0) {
if (this.keyTimer) {
this.timer.clearTimeout(this.keyTimer);
}
this.keyTimer = this.timer.setTimeout("resetPressedKeys",1000);
this.scrollToKey();
}
}
}
selectionList.prototype.resetPressedKeys = function() {
this.keyTimer = undefined;
this.pressedKeys = "";
}
//this function is called when selectionList is unfolded
selectionList.prototype.unfoldList = function() {
//create temporary group to hold temp geometry
if (!this.dynamicTextGroup) {
this.dynamicTextGroup = document.createElementNS(svgNS,"g");
this.parentGroup.insertBefore(this.dynamicTextGroup,this.rectAboveBox);
}
var nrSelectionsOrig = this.elementsArray.length;
if (this.heightNrElements < nrSelectionsOrig) {
nrSelections = this.heightNrElements;
}
else {
nrSelections = nrSelectionsOrig;
}
var selectionHeight = this.cellHeight * nrSelections;
//build textElements from array
//hold currentSelection Index to unroll list at new offset
if ((nrSelectionsOrig - this.activeSelection) >= nrSelections) {
this.curLowerIndex = this.activeSelection;
}
else {
this.curLowerIndex = nrSelectionsOrig - nrSelections;
}
//following is a temporary YOffset that serves to distinquish between selectionLists that open above or below
var YOffset = this.yOffset + this.cellHeight;
if (this.openAbove) {
YOffset = this.yOffset - this.heightNrElements * this.cellHeight;
}
//adopt background rectangle
this.rectBelowBox.setAttributeNS(null,"height",selectionHeight);
this.rectBelowBox.setAttributeNS(null,"display","inherit");
this.rectBelowBox.setAttributeNS(null,"y",YOffset);
this.rectAboveBox.setAttributeNS(null,"height",selectionHeight);
this.rectAboveBox.setAttributeNS(null,"display","inherit");
this.rectAboveBox.setAttributeNS(null,"y",YOffset);
for (var i=0;i<nrSelections;i++) {
//add rectangles to capture events
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset + this.textPadding / 2);
node.setAttributeNS(null,"y",YOffset + this.cellHeight * i);
node.setAttributeNS(null,"width",this.width - this.cellHeight - this.textPadding);
node.setAttributeNS(null,"height",this.cellHeight);
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
node.setAttributeNS(null,"id","selHighlightSelection_" + this.id + "_" + (i + this.curLowerIndex));
//add event-handler
node.addEventListener("mouseover", this, false);
node.addEventListener("mouseout", this, false);
node.addEventListener("click", this, false);
node.addEventListener("keypress", this, false);
this.dynamicTextGroup.appendChild(node);
//add text-elements
var node = document.createElementNS(svgNS,"text");
node.setAttributeNS(null,"id","selTexts_" + this.id + "_" + (i + this.curLowerIndex));
node.setAttributeNS(null,"x",this.xOffset + this.textPadding);
node.setAttributeNS(null,"y",YOffset + this.textPaddingVertical + this.cellHeight * i);
node.setAttributeNS(null,"pointer-events","none");
var value = "";
for (var attrib in this.textStyles) {
value = this.textStyles[attrib];
if (attrib == "font-size") {
value += "px";
}
node.setAttributeNS(null,attrib,value);
}
var selectionText = document.createTextNode(this.elementsArray[this.curLowerIndex + i]);
node.appendChild(selectionText);
this.dynamicTextGroup.appendChild(node);
}
//create Scrollbar
if (this.heightNrElements < nrSelectionsOrig) {
//calculate scrollstep
this.scrollerHeight = (this.heightNrElements / nrSelectionsOrig) * (selectionHeight - 2 * this.cellHeight);
if (this.scrollerHeight < this.scrollerMinHeight) {
this.scrollerHeight = this.scrollerMinHeight;
}
this.scrollStep = (selectionHeight - 2 * this.cellHeight - this.scrollerHeight) / (nrSelectionsOrig - this.heightNrElements);
//scrollbar
this.scrollBar = document.createElementNS(svgNS,"rect");
this.scrollBar.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
this.scrollBar.setAttributeNS(null,"y",YOffset + this.cellHeight);
this.scrollBar.setAttributeNS(null,"width",this.cellHeight);
this.scrollBar.setAttributeNS(null,"height",selectionHeight - this.cellHeight * 2);
for (var attrib in this.scrollbarStyles) {
this.scrollBar.setAttributeNS(null,attrib,this.scrollbarStyles[attrib]);
}
this.scrollBar.setAttributeNS(null,"id","selScrollbarRect_"+this.id);
this.scrollBar.addEventListener("mousedown", this, false);
//node.addEventListener("mouseup", this, false);
//node.addEventListener("mousemove", this, false);
//node.addEventListener("mouseout", this, false);
this.dynamicTextGroup.appendChild(this.scrollBar);
//upper rectangle
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
node.setAttributeNS(null,"y",YOffset);
node.setAttributeNS(null,"width",this.cellHeight);
node.setAttributeNS(null,"height",this.cellHeight);
for (var attrib in this.smallrectStyles) {
node.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
node.setAttributeNS(null,"id","selScrollUpperRect_"+this.id);
node.addEventListener("mousedown", this, false);
node.addEventListener("mouseup", this, false);
this.dynamicTextGroup.appendChild(node);
//upper triangle
var node = document.createElementNS(svgNS,"path");
var myPath = "M"+(this.xOffset + this.width - 3 * this.triangleFourth)+" "+(YOffset + 3 * this.triangleFourth)+" L"+(this.xOffset + this.width - this.triangleFourth)+" "+(YOffset + 3 * this.triangleFourth)+" L"+(this.xOffset + this.width - 2 * this.triangleFourth)+" "+(YOffset + this.triangleFourth)+" Z";
node.setAttributeNS(null,"d",myPath);
for (var attrib in this.triangleStyles) {
node.setAttributeNS(null,attrib,this.triangleStyles[attrib]);
}
node.setAttributeNS(null,"pointer-events","none");
this.dynamicTextGroup.appendChild(node);
//lower rectangle
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
node.setAttributeNS(null,"y",YOffset - this.cellHeight + selectionHeight);
node.setAttributeNS(null,"width",this.cellHeight);
node.setAttributeNS(null,"height",this.cellHeight);
for (var attrib in this.smallrectStyles) {
node.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
node.setAttributeNS(null,"id","selScrollLowerRect_" + this.id);
node.addEventListener("mousedown", this, false);
node.addEventListener("mouseup", this, false);
this.dynamicTextGroup.appendChild(node);
//lower triangle
var node = document.createElementNS(svgNS,"path");
var myPath = "M"+(this.xOffset + this.width - 3 * this.triangleFourth)+" "+(YOffset - this.cellHeight + selectionHeight + this.triangleFourth)+" L"+(this.xOffset + this.width - this.triangleFourth)+" "+(YOffset - this.cellHeight + selectionHeight + this.triangleFourth)+" L"+(this.xOffset + this.width - 2 * this.triangleFourth)+" "+(YOffset - this.cellHeight + selectionHeight + 3 * this.triangleFourth)+" Z";
node.setAttributeNS(null,"d",myPath);
for (var attrib in this.triangleStyles) {
node.setAttributeNS(null,attrib,this.triangleStyles[attrib]);
}
node.setAttributeNS(null,"pointer-events","none");
this.dynamicTextGroup.appendChild(node);
//scrollerRect
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
node.setAttributeNS(null,"y",YOffset + this.cellHeight + this.scrollStep * this.curLowerIndex);
node.setAttributeNS(null,"width",this.cellHeight);
node.setAttributeNS(null,"height",this.scrollerHeight);
for (var attrib in this.smallrectStyles) {
node.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
node.setAttributeNS(null,"pointer-events","none");
node.setAttributeNS(null,"id","selScroller_"+this.id);
this.dynamicTextGroup.appendChild(node);
}
//add event handler to root element to close selectionList if one clicks outside
document.documentElement.addEventListener("click",this,false);
document.documentElement.addEventListener("keypress",this,false);
}
//this function folds/hides the selectionList again
selectionList.prototype.foldList = function() {
this.parentGroup.removeChild(this.dynamicTextGroup);
this.dynamicTextGroup = null;
this.rectBelowBox.setAttributeNS(null,"display","none");
this.rectAboveBox.setAttributeNS(null,"display","none");
document.documentElement.removeEventListener("click",this,false);
document.documentElement.removeEventListener("keypress",this,false);
this.scrollBar = undefined;
}
selectionList.prototype.selectAndClose = function(evt) {
var mySelEl = evt.target;
var result = mySelEl.getAttributeNS(null,"id").split("_");
this.activeSelection = parseInt(result[2]);
this.curLowerIndex = this.activeSelection;
this.foldList();
this.listOpen = false;
this.selectedText.firstChild.nodeValue = this.elementsArray[this.activeSelection];
this.timer.setTimeout("fireFunction",this.timerMs);
}
selectionList.prototype.fireFunction = function() {
if (typeof(this.functionToCall) == "function") {
this.functionToCall(this.id,this.activeSelection,this.elementsArray[this.activeSelection]);
}
if (typeof(this.functionToCall) == "object") {
this.functionToCall.getSelectionListVal(this.id,this.activeSelection,this.elementsArray[this.activeSelection]);
}
//suggestion by Bruce Rindahl
//allows to initialize a selectionlist without a specific callback function on changing the selectionlist entry
if (typeof(this.functionToCall) == undefined) {
return;
}
}
selectionList.prototype.scrollPerButton = function() {
if (this.scrollActive == true) {
this.scroll(this.scrollDir,1,true); //1 is one element to scroll, true says that we should move scrollbar
this.timer.setTimeout("scrollPerButton",100)
}
}
selectionList.prototype.scroll = function(scrollDir,scrollNr,scrollBool) {
var nrSelections = this.elementsArray.length;
var scroller = document.getElementById("selScroller_"+this.id);
//following is a temporary YOffset that serves to distinquish between selectionLists that open above or below
var YOffset = this.yOffset + this.cellHeight;
if (this.openAbove) {
YOffset = this.yOffset - this.heightNrElements * this.cellHeight;
}
if (scrollNr < this.heightNrElements) {
if ((this.curLowerIndex > 0) && (scrollDir == "up")) {
if (scrollNr > this.curLowerIndex) {
scrollNr = this.curLowerIndex;
}
//decrement current index
this.curLowerIndex = this.curLowerIndex - scrollNr;
//move scroller
if (scrollBool == true) {
scroller.setAttributeNS(null,"y",parseFloat(scroller.getAttributeNS(null,"y"))+ this.scrollStep * -1);
}
//add upper rect elements
for (var i=0;i<scrollNr;i++) {
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset + this.textPadding / 2);
node.setAttributeNS(null,"y",YOffset + this.cellHeight * i);
node.setAttributeNS(null,"width",this.width - this.cellHeight - this.textPadding);
node.setAttributeNS(null,"height",this.cellHeight);
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
node.setAttributeNS(null,"id","selHighlightSelection_" + this.id + "_" + (i + this.curLowerIndex));
//add event-handler
node.addEventListener("mouseover", this, false);
node.addEventListener("mouseout", this, false);
node.addEventListener("click", this, false);
node.addEventListener("keypress", this, false);
this.dynamicTextGroup.appendChild(node);
//add text-nodes
var node = document.createElementNS(svgNS,"text");
node.setAttributeNS(null,"id","selTexts_" + this.id + "_" + (i + this.curLowerIndex));
node.setAttributeNS(null,"x",this.xOffset + this.textPadding);
node.setAttributeNS(null,"y",YOffset + this.textPaddingVertical + this.cellHeight * i);
node.setAttributeNS(null,"pointer-events","none");
var value = "";
for (var attrib in this.textStyles) {
value = this.textStyles[attrib];
if (attrib == "font-size") {
value += "px";
}
node.setAttributeNS(null,attrib,value);
}
var selectionText = document.createTextNode(this.elementsArray[this.curLowerIndex + i]);
node.appendChild(selectionText);
this.dynamicTextGroup.appendChild(node);
}
//move middle elements
for (var j=i;j<this.heightNrElements;j++) {
var node = document.getElementById("selTexts_" + this.id + "_" + (j + this.curLowerIndex));
node.setAttributeNS(null,"y",parseFloat(node.getAttributeNS(null,"y")) + (this.cellHeight * scrollNr));
var node = document.getElementById("selHighlightSelection_" + this.id + "_" + (j + this.curLowerIndex));
node.setAttributeNS(null,"y",parseFloat(node.getAttributeNS(null,"y")) + (this.cellHeight * scrollNr));
}
//remove lower elements
for (var k=j;k<(j+scrollNr);k++) {
var node = document.getElementById("selTexts_" + this.id + "_" + (k + this.curLowerIndex));
this.dynamicTextGroup.removeChild(node);
var node = document.getElementById("selHighlightSelection_" + this.id +"_" + (k + this.curLowerIndex));
this.dynamicTextGroup.removeChild(node);
}
}
else if ((this.curLowerIndex < nrSelections - this.heightNrElements) && (scrollDir == "down")) {
//move Scroller
if (scrollBool == true) {
scroller.setAttributeNS(null,"y",parseFloat(scroller.getAttributeNS(null,"y")) + this.scrollStep);
}
//remove most upper element
for (var i=0;i<scrollNr;i++) {
var node = document.getElementById("selTexts_" + this.id + "_" + (this.curLowerIndex + i));
this.dynamicTextGroup.removeChild(node);
var node = document.getElementById("selHighlightSelection_" + this.id + "_" + (this.curLowerIndex + i));
this.dynamicTextGroup.removeChild(node);
}
//move middle elements
for (var j=i;j<this.heightNrElements;j++) {
var node = document.getElementById("selTexts_" + this.id + "_" + (j + this.curLowerIndex));
node.setAttributeNS(null,"y",parseFloat(node.getAttributeNS(null,"y")) - (this.cellHeight * scrollNr));
var node = document.getElementById("selHighlightSelection_" + this.id + "_" + (j + this.curLowerIndex));
node.setAttributeNS(null,"y",parseFloat(node.getAttributeNS(null,"y")) - (this.cellHeight * scrollNr));
}
//add most lower element
for (var k=j;k<(j+scrollNr);k++) {
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset + this.textPadding / 2);
node.setAttributeNS(null,"y",YOffset + this.cellHeight * (k - scrollNr));
node.setAttributeNS(null,"width",this.width - this.cellHeight - this.textPadding);
node.setAttributeNS(null,"height",this.cellHeight);
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
node.setAttribute("id","selHighlightSelection_" + this.id + "_" + (k + this.curLowerIndex));
//add event-handler
node.addEventListener("mouseover", this, false);
node.addEventListener("mouseout", this, false);
node.addEventListener("click", this, false);
node.addEventListener("keypress", this, false);
this.dynamicTextGroup.appendChild(node);
//add text-nodes
var node = document.createElementNS(svgNS,"text");
node.setAttributeNS(null,"id","selTexts_" + this.id + "_" + (k + this.curLowerIndex));
node.setAttributeNS(null,"x",this.xOffset + this.textPadding);
node.setAttributeNS(null,"y",YOffset + this.textPaddingVertical + this.cellHeight * (k - scrollNr));
node.setAttributeNS(null,"pointer-events","none");
var value = "";
for (var attrib in this.textStyles) {
value = this.textStyles[attrib];
if (attrib == "font-size") {
value += "px";
}
node.setAttributeNS(null,attrib,value);
}
var selectionText = document.createTextNode(this.elementsArray[this.curLowerIndex + k]);
node.appendChild(selectionText);
this.dynamicTextGroup.appendChild(node);
}
//increment current index
this.curLowerIndex = this.curLowerIndex + scrollNr;
}
}
else {
//remove lower elements
for (var i=0;i<this.heightNrElements;i++) {
var node = document.getElementById("selTexts_" + this.id + "_" + (i + this.curLowerIndex));
this.dynamicTextGroup.removeChild(node);
var node = document.getElementById("selHighlightSelection_" + this.id +"_" + (i + this.curLowerIndex));
this.dynamicTextGroup.removeChild(node);
}
if (scrollDir == "down") {
this.curLowerIndex = this.curLowerIndex + scrollNr;
}
else {
this.curLowerIndex = this.curLowerIndex - scrollNr;
}
for (var i=0;i<this.heightNrElements;i++) {
var node = document.createElementNS(svgNS,"rect");
node.setAttributeNS(null,"x",this.xOffset + this.textPadding / 2);
node.setAttributeNS(null,"y",YOffset + this.cellHeight * i);
node.setAttributeNS(null,"width",this.width - this.cellHeight - this.textPadding);
node.setAttributeNS(null,"height",this.cellHeight);
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
node.setAttributeNS(null,"id","selHighlightSelection_" + this.id + "_" + (i + this.curLowerIndex));
//add event-handler
node.addEventListener("mouseover", this, false);
node.addEventListener("mouseout", this, false);
node.addEventListener("click", this, false);
node.addEventListener("keypress", this, false);
this.dynamicTextGroup.appendChild(node);
//add text-nodes
var node = document.createElementNS(svgNS,"text");
node.setAttributeNS(null,"id","selTexts_" + this.id + "_" + (i + this.curLowerIndex));
node.setAttributeNS(null,"x",this.xOffset + this.textPadding);
node.setAttributeNS(null,"y",YOffset + this.textPaddingVertical + this.cellHeight * i);
node.setAttributeNS(null,"pointer-events","none");
var value = "";
for (var attrib in this.textStyles) {
value = this.textStyles[attrib];
if (attrib == "font-size") {
value += "px";
}
node.setAttributeNS(null,attrib,value);
}
var selectionText = document.createTextNode(this.elementsArray[this.curLowerIndex + i]);
node.appendChild(selectionText);
this.dynamicTextGroup.appendChild(node);
}
}
}
//event listener for Scrollbar element
selectionList.prototype.scrollBarMove = function(evt) {
var scroller = document.getElementById("selScroller_" + this.id);
var scrollerHeight = parseFloat(scroller.getAttributeNS(null,"height"));
var scrollerMinY = parseFloat(this.scrollBar.getAttributeNS(null,"y"));
var scrollerMaxY = parseFloat(this.scrollBar.getAttributeNS(null,"y")) + parseFloat(this.scrollBar.getAttributeNS(null,"height")) - scrollerHeight;
//following is a temporary YOffset that serves to distinquish between selectionLists that open above or below
var YOffset = this.yOffset + this.cellHeight;
if (this.openAbove) {
YOffset = this.yOffset - this.heightNrElements * this.cellHeight;
}
if (evt.type == "mousedown") {
this.panStatus = true;
for (var attrib in this.triangleStyles) {
scroller.setAttributeNS(null,attrib,this.triangleStyles[attrib]);
}
var coordPoint = myMapApp.calcCoord(evt,this.scrollBar);
this.panY = coordPoint.y;
var oldY = parseFloat(scroller.getAttributeNS(null,"y"));
var newY = this.panY - parseFloat(scroller.getAttributeNS(null,"height")) / 2;
if (newY < scrollerMinY) {
newY = scrollerMinY;
//maybe recalculate this.panY ??
}
if (newY > scrollerMaxY) {
newY = scrollerMaxY;
}
var panDiffY = newY - oldY;
var scrollDir = "down";
this.scrollCumulus = 0;
if(Math.abs(panDiffY) > this.scrollStep) {
var scrollNr = Math.abs(Math.round(panDiffY / this.scrollStep));
if (panDiffY > 0) {
this.scrollCumulus = panDiffY - this.scrollStep * scrollNr;
}
else {
this.scrollCumulus = panDiffY + this.scrollStep * scrollNr;
scrollDir = "up";
}
newY = oldY + panDiffY;
scroller.setAttributeNS(null,"y",newY);
this.scroll(scrollDir,scrollNr,false);
}
}
if (evt.type == "mouseup" || evt.type == "mouseout") {
if (this.panStatus == true) {
var newY = parseFloat(scroller.getAttributeNS(null,"y"));
for (var attrib in this.smallrectStyles) {
scroller.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
scroller.setAttributeNS(null,"y",YOffset + this.cellHeight + this.scrollStep * this.curLowerIndex);
}
this.panStatus = false;
}
if (evt.type == "mousemove") {
if (this.panStatus == true) {
var coordPoint = myMapApp.calcCoord(evt,this.scrollBar);
var panNewEvtY = coordPoint.y;
var panDiffY = panNewEvtY - this.panY;
var oldY = parseFloat(scroller.getAttributeNS(null,"y"));
var newY = oldY + panDiffY;
if (newY < scrollerMinY) {
newY = scrollerMinY;
}
if (newY > scrollerMaxY) {
newY = scrollerMaxY;
}
var panDiffY = newY - oldY;
if ((panDiffY < 0 && panNewEvtY <= (scrollerMaxY+scrollerHeight)) || (panDiffY > 0 && panNewEvtY >= scrollerMinY)) {
this.scrollCumulus += panDiffY;
var scrollDir = "down";
var scrollNr = 0;
if(Math.abs(this.scrollCumulus) >= this.scrollStep) {
scrollNr = Math.abs(Math.round(this.scrollCumulus / this.scrollStep));
if (this.scrollCumulus > 0) {
this.scrollCumulus = this.scrollCumulus - this.scrollStep * scrollNr;
}
else {
this.scrollCumulus = this.scrollCumulus + this.scrollStep * scrollNr;
scrollDir = "up";
}
this.scroll(scrollDir,scrollNr,false);
}
else {
if (Math.abs(this.scrollCumulus) > this.scrollStep) {
scrollNr = 1;
if (panDiffY < 0) {
scrollDir = "up";
this.scrollCumulus = this.scrollCumulus + this.scrollStep;
}
else {
this.scrollCumulus = this.scrollCumulus - this.scrollStep;
}
panDiffY = this.scrollCumulus;
this.scroll(scrollDir,scrollNr,false);
}
else {
if (newY == scrollerMinY && this.curLowerIndex != 0) {
this.scroll("up",1,false);
}
else if (newY == scrollerMaxY && this.curLowerIndex != (this.elementsArray.length - this.heightNrElements)) {
this.scroll("down",1,false);
}
}
}
newY = oldY + panDiffY;
scroller.setAttributeNS(null,"y",newY);
this.panY = panNewEvtY;
}
}
}
}
selectionList.prototype.scrollToKey = function(pressedKey) {
var oldActiveSelection = this.activeSelection;
for (var i=0;i<this.elementsArray.length;i++) {
if (this.elementsArray[i].toLowerCase().substr(0,this.pressedKeys.length) == this.pressedKeys) {
if (this.listOpen == true) {
this.foldList();
}
this.activeSelection = i;
this.unfoldList();
this.listOpen = true;
this.activeSelection = oldActiveSelection;
break;
}
}
}
selectionList.prototype.elementExists = function(elementName) {
var result = -1;
for (i=0;i<this.elementsArray.length;i++) {
if (this.elementsArray[i] == elementName) {
result = i;
}
}
return result;
}
selectionList.prototype.selectElementByName = function(elementName,fireFunction) {
//fireFunction: (true|false); determines whether to execute selectFunction or not
existsPosition = this.elementExists(elementName);
if (existsPosition != -1) {
if (this.listOpen == true) {
this.foldList();
}
this.activeSelection = existsPosition;
this.selectedText.firstChild.nodeValue = this.elementsArray[this.activeSelection];
if (this.listOpen == true) {
this.unfoldList();
}
if (fireFunction == true) {
this.fireFunction();
}
}
return existsPosition;
}
selectionList.prototype.selectElementByPosition = function(position,fireFunction) {
//fireFunction: (true|false); determines whether to execute selectFunction or not
if (position < this.elementsArray.length) {
if (this.listOpen == true) {
this.foldList();
}
this.activeSelection = position;
this.selectedText.firstChild.nodeValue = this.elementsArray[this.activeSelection];
if (this.listOpen == true) {
this.unfoldList();
}
if (fireFunction == true) {
this.fireFunction();
}
}
else {
position = -1;
}
return position;
}
selectionList.prototype.sortList = function(direction) {
//direction: asc|desc, for ascending or descending
var mySelElementString = this.elementsArray[this.activeSelection];
if (this.listOpen == true) {
this.foldList();
}
this.elementsArray.sort();
if (direction == "desc") {
this.elementsArray.reverse();
}
this.activeSelection = this.elementExists(mySelElementString);
if (this.listOpen == true) {
this.unfoldList();
}
return direction;
}
selectionList.prototype.deleteElement = function(elementName) {
existsPosition = this.elementExists(elementName);
if (existsPosition != -1) {
if (this.listOpen == true) {
this.foldList();
}
var tempArray = new Array;
tempArray = tempArray.concat(this.elementsArray.slice(0,existsPosition),this.elementsArray.slice(existsPosition + 1,this.elementsArray.length));
this.elementsArray = tempArray;
if (this.activeSelection == existsPosition) {
this.selectedText.firstChild.nodeValue = this.elementsArray[this.activeSelection];
}
if (this.activeSelection > existsPosition) {
this.activeSelection -= 1;
}
if (this.listOpen == true) {
this.unfoldList();
}
}
return existsPosition;
}
selectionList.prototype.addElementAtPosition = function(elementName,position) {
if (position > this.elementsArray.length) {
this.elementsArray.push(elementName);
position = this.elementsArray.length - 1;
}
else {
var tempArray = new Array;
tempArray = tempArray.concat(this.elementsArray.slice(0,position),elementName,this.elementsArray.slice(position,this.elementsArray.length));
this.elementsArray = tempArray;
}
if (this.listOpen == true) {
this.foldList();
}
if (position <= this.activeSelection) {
this.activeSelection += 1;
}
if (this.listOpen == true) {
this.unfoldList();
}
return position;
}
selectionList.prototype.getCurrentSelectionElement = function() {
return this.elementsArray[this.activeSelection];
}
selectionList.prototype.getCurrentSelectionIndex = function() {
return this.activeSelection;
}
selectionList.prototype.removeSelectionList = function() {
//remove all Elements of selectionList
this.exists = false;
while (this.parentGroup.hasChildNodes()) {
this.parentGroup.removeChild(this.parentGroup.firstChild);
}
}
selectionList.prototype.moveTo = function(moveX,moveY) {
this.xOffset = moveX;
this.yOffset = moveY;
//reposition initial rectangle
var initRect = document.getElementById("selRect_"+this.id);
initRect.setAttributeNS(null,"x",this.xOffset);
initRect.setAttributeNS(null,"y",this.yOffset);
//reposition initial text
this.selectedText.setAttributeNS(null,"x",this.xOffset + this.textPadding);
this.selectedText.setAttributeNS(null,"y",this.yOffset + this.textPaddingVertical);
//reposition small rectangle to the right
var smallRectRight = document.getElementById("selPulldown_"+this.id);
smallRectRight.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
smallRectRight.setAttributeNS(null,"y",this.yOffset);
//reposition triangle
var triangle = document.getElementById("selTriangle_"+this.id);
var myTrianglePath = "M"+(this.xOffset + this.width - 3 * this.triangleFourth)+" "+(this.yOffset + this.triangleFourth)+" L"+(this.xOffset + this.width - this.triangleFourth)+" "+(this.yOffset + this.triangleFourth)+" L"+(this.xOffset + this.width - 2 * this.triangleFourth)+" "+(this.yOffset + 3 * this.triangleFourth)+" Z";
triangle.setAttributeNS(null,"d",myTrianglePath);
//change positions of rectbox below and above
this.rectBelowBox.setAttributeNS(null,"x",this.xOffset);
this.rectBelowBox.setAttributeNS(null,"y",this.yOffset + this.cellHeight);
this.rectAboveBox.setAttributeNS(null,"x",this.xOffset);
this.rectAboveBox.setAttributeNS(null,"y",this.yOffset + this.cellHeight);
}
selectionList.prototype.resize = function(newWidth) {
this.width = newWidth;
//reposition initial rectangle
var initRect = document.getElementById("selRect_"+this.id);
initRect.setAttributeNS(null,"width",this.width);
//reposition small rectangle to the right
var smallRectRight = document.getElementById("selPulldown_"+this.id);
smallRectRight.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
//reposition triangle
var triangle = document.getElementById("selTriangle_"+this.id);
var myTrianglePath = "M"+(this.xOffset + this.width - 3 * this.triangleFourth)+" "+(this.yOffset + this.triangleFourth)+" L"+(this.xOffset + this.width - this.triangleFourth)+" "+(this.yOffset + this.triangleFourth)+" L"+(this.xOffset + this.width - 2 * this.triangleFourth)+" "+(this.yOffset + 3 * this.triangleFourth)+" Z";
triangle.setAttributeNS(null,"d",myTrianglePath);
//change sizes of rectbox below and above
this.rectBelowBox.setAttributeNS(null,"width",this.width - this.cellHeight);
this.rectAboveBox.setAttributeNS(null,"width",this.width - this.cellHeight);
}
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