/*
Scripts to create interactive comboboxes in SVG using ECMA script
Copyright (C) <2006> <Andreas Neumann>
Version 1.2.1, 2006-10-03
[email protected]
http://www.carto.net/
http://www.carto.net/neumann/
Credits:
----
current version: 1.2.1
version history:
1.0 (2006-02-20)
initial version
1.1 (2006-05-17)
decoupled styling from this file, fixes event handling so people can scroll outside scroller if mouse is down (events now added to root element)
1.2 (2006-10-02)
changed internally "groupId" to "id" to make it consistent with other GUI elements, introduced "parentId" as a new constructor parameter for the same reason, introduced new methods "resize()" and "moveTo()"
1.2.1 (2006-10-03)
corrected a slight bug regarding DOM hierarchy of created elements
-------
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/combobox/
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 "combobox" (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/combobox/)
somewhere in the source-code-comment or the "about" of your project and give credits, thanks!
*/
function combobox(id,parentNode,elementsArray,width,xOffset,yOffset,cellHeight,textPadding,heightNrElements,multiple,offsetValue,textStyles,boxStyles,scrollbarStyles,smallrectStyles,highlightStyles,triangleStyles,functionToCall) {
var nrArguments = 18;
var createCombobox= true;
if (arguments.length == nrArguments) {
//get constructor variables
this.id = id;
this.parentNode = parentNode;
this.elementsArray = elementsArray;
this.width = width;
this.xOffset = xOffset;
this.yOffset = yOffset;
this.cellHeight = cellHeight; //cellHeight in viewBox coordinates
this.textPadding = textPadding; //this is relative to the left of the cell
this.heightNrElements = heightNrElements;
//check if heightNrElements is bigger than elements in the array
if (this.heightNrElements > this.elementsArray.length) {
this.heightNrElements = this.elementsArray.length;
}
this.multiple = multiple;
this.curLowerIndex = offsetValue;
//check if curLowIndex is within range
if (this.curLowerIndex > (this.elementsArray.length - this.heightNrElements)) {
this.curLowerIndex = this.elementsArray.length - this.heightNrElements;
}
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.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
//status variables
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.mouseDownStatus = false; //status that specifies if mouse is down or up on individual elements
this.pressedKeys = ""; //stores key events (pressed char values)
this.keyTimer = undefined;
this.svgRootHasEventListener = false; //status variable to define if svg root has key and mouseover listener or not
}
else {
createCombobox = false;
alert("Error ("+id+"): wrong nr of arguments! You have to pass over "+nrArguments+" parameters.");
}
if (createCombobox) {
//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
//create combobox
var result = this.testParent();
if (result) {
//this.parentGroup = document.getElementById(this.id);
this.createOrUpdateCombobox();
}
else {
alert("could not create or reference 'parentNode' of combobox with id '"+this.id+"'");
}
}
else {
alert("Could not create combobox with id '"+id+"' due to errors in the constructor parameters");
}
}
//test if parent group exists or create a new group at the end of the file
combobox.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;
}
combobox.prototype.createOrUpdateCombobox = function() {
//check if there are more elements in the array than heightNrElements
if (this.heightNrElements < this.elementsArray.length) {
nrSelections = this.heightNrElements;
}
else {
nrSelections = this.elementsArray.length;
}
//calculate height
var comboboxHeight = this.cellHeight * nrSelections;
//rectangle below (only fill, stroke is added at a separate rect)
var created = true;
if (!this.rectBelowBox) {
this.rectBelowBox = document.createElementNS(svgNS,"rect");
this.rectBelowBox.setAttributeNS(null,"stroke","none");
created = false;
}
this.rectBelowBox.setAttributeNS(null,"x",this.xOffset);
this.rectBelowBox.setAttributeNS(null,"y",this.yOffset);
this.rectBelowBox.setAttributeNS(null,"width",this.width - this.cellHeight);
this.rectBelowBox.setAttributeNS(null,"height",comboboxHeight);
for (var attrib in this.boxStyles) {
if (attrib != "stroke" && attrib != "stroke-width") {
this.rectBelowBox.setAttributeNS(null,attrib,this.boxStyles[attrib]);
}
}
if (!created) {
this.parentGroup.appendChild(this.rectBelowBox);
}
//create temporary group for indiv. combo elements
var comboElementsGroupCreated = false;
if (this.comboElementsGroup) {
this.parentGroup.removeChild(this.comboElementsGroup);
comboElementsGroupCreated = true;
}
this.comboElementsGroup = document.createElementNS(svgNS,"g");
if (comboElementsGroupCreated) {
this.parentGroup.insertBefore(this.comboElementsGroup,this.rectAboveBox);
}
else {
this.parentGroup.appendChild(this.comboElementsGroup);
}
//create rectangle above combobox (only stroke)
created = true;
if (!this.rectAboveBox) {
this.rectAboveBox = document.createElementNS(svgNS,"rect");
this.rectAboveBox.setAttributeNS(null,"fill","none");
created = false;
}
this.rectAboveBox.setAttributeNS(null,"x",this.xOffset);
this.rectAboveBox.setAttributeNS(null,"y",this.yOffset);
this.rectAboveBox.setAttributeNS(null,"width",this.width - this.cellHeight);
this.rectAboveBox.setAttributeNS(null,"height",comboboxHeight);
for (var attrib in this.boxStyles) {
if (attrib != "fill") {
this.rectAboveBox.setAttributeNS(null,attrib,this.boxStyles[attrib]);
}
}
if (!created) {
this.parentGroup.appendChild(this.rectAboveBox);
}
//build textElements from array
//hold currentSelection Index to unroll list at new offset
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",this.yOffset + this.cellHeight * i);
node.setAttributeNS(null,"width",this.width - this.cellHeight - this.textPadding);
node.setAttributeNS(null,"height",this.cellHeight);
if (this.elementsArray[this.curLowerIndex + i].value) {
for (var attrib in this.highlightStyles) {
node.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
}
else {
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
}
node.setAttributeNS(null,"id","selHighlightSelection_" + this.id + "_" + (i + this.curLowerIndex));
//add event-handler
node.addEventListener("mousedown", this, false);
node.addEventListener("mouseover", this, false);
node.addEventListener("mouseup", this, false);
this.comboElementsGroup.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",this.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].key);
node.appendChild(selectionText);
this.comboElementsGroup.appendChild(node);
}
//create Scrollbar
if (this.heightNrElements < this.elementsArray.length) {
//calculate scrollstep
this.scrollerHeight = (this.heightNrElements / this.elementsArray.length) * (comboboxHeight - 2 * this.cellHeight);
if (this.scrollerHeight < this.scrollerMinHeight) {
this.scrollerHeight = this.scrollerMinHeight;
}
this.scrollStep = (comboboxHeight - 2 * this.cellHeight - this.scrollerHeight) / (this.elementsArray.length - this.heightNrElements);
//scrollbar
created = true;
if (!this.scrollbarRect) {
this.scrollbarRect = document.createElementNS(svgNS,"rect");
this.scrollbarRect.addEventListener("mousedown", this, false);
this.scrollbarRect.setAttributeNS(null,"id","selScrollbarRect_"+this.id);
created = false;
}
this.scrollbarRect.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
this.scrollbarRect.setAttributeNS(null,"y",this.yOffset + this.cellHeight);
this.scrollbarRect.setAttributeNS(null,"width",this.cellHeight);
this.scrollbarRect.setAttributeNS(null,"height",comboboxHeight - this.cellHeight * 2);
for (var attrib in this.scrollbarStyles) {
this.scrollbarRect.setAttributeNS(null,attrib,this.scrollbarStyles[attrib]);
}
if (!created) {
this.parentGroup.appendChild(this.scrollbarRect);
}
//upper rectangle
created = true;
if (!this.scrollUpperRect) {
this.scrollUpperRect = document.createElementNS(svgNS,"rect");
this.scrollUpperRect.setAttributeNS(null,"id","selScrollUpperRect_"+this.id);
this.scrollUpperRect.addEventListener("mousedown", this, false);
this.scrollUpperRect.addEventListener("mouseup", this, false);
created = false;
}
this.scrollUpperRect.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
this.scrollUpperRect.setAttributeNS(null,"y",this.yOffset);
this.scrollUpperRect.setAttributeNS(null,"width",this.cellHeight);
this.scrollUpperRect.setAttributeNS(null,"height",this.cellHeight);
for (var attrib in this.smallrectStyles) {
this.scrollUpperRect.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
if (!created) {
this.parentGroup.appendChild(this.scrollUpperRect);
}
//upper triangle
created = true;
if (!this.upperTriangle) {
this.upperTriangle = document.createElementNS(svgNS,"path");
this.upperTriangle.setAttributeNS(null,"pointer-events","none");
created = false;
}
var myPath = "M"+(this.xOffset + this.width - 3 * this.triangleFourth)+" "+(this.yOffset + 3 * this.triangleFourth)+" L"+(this.xOffset + this.width - this.triangleFourth)+" "+(this.yOffset + 3 * this.triangleFourth)+" L"+(this.xOffset + this.width - 2 * this.triangleFourth)+" "+(this.yOffset + this.triangleFourth)+" Z";
this.upperTriangle.setAttributeNS(null,"d",myPath);
for (var attrib in this.triangleStyles) {
this.upperTriangle.setAttributeNS(null,attrib,this.triangleStyles[attrib]);
}
if (!this.created) {
this.parentGroup.appendChild(this.upperTriangle);
}
//lower rectangle
created = true;
if (!this.scrollLowerRect) {
this.scrollLowerRect = document.createElementNS(svgNS,"rect");
this.scrollLowerRect.setAttributeNS(null,"id","selScrollLowerRect_" + this.id);
this.scrollLowerRect.addEventListener("mousedown", this, false);
this.scrollLowerRect.addEventListener("mouseup", this, false);
created = false;
}
this.scrollLowerRect.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
this.scrollLowerRect.setAttributeNS(null,"y",this.yOffset + comboboxHeight - this.cellHeight);
this.scrollLowerRect.setAttributeNS(null,"width",this.cellHeight);
this.scrollLowerRect.setAttributeNS(null,"height",this.cellHeight);
for (var attrib in this.smallrectStyles) {
this.scrollLowerRect.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
if (!created) {
this.parentGroup.appendChild(this.scrollLowerRect);
}
//lower triangle
created = true;
if (!this.lowerTriangle) {
this.lowerTriangle = document.createElementNS(svgNS,"path");
this.lowerTriangle.setAttributeNS(null,"pointer-events","none");
created = false;
}
var myPath = "M"+(this.xOffset + this.width - 3 * this.triangleFourth)+" "+(this.yOffset + comboboxHeight - this.cellHeight + this.triangleFourth)+" L"+(this.xOffset + this.width - this.triangleFourth)+" "+(this.yOffset + comboboxHeight - this.cellHeight + this.triangleFourth)+" L"+(this.xOffset + this.width - 2 * this.triangleFourth)+" "+(this.yOffset + comboboxHeight - this.cellHeight + 3 * this.triangleFourth)+" Z";
this.lowerTriangle.setAttributeNS(null,"d",myPath);
for (var attrib in this.triangleStyles) {
this.lowerTriangle.setAttributeNS(null,attrib,this.triangleStyles[attrib]);
}
if (!created) {
this.parentGroup.appendChild(this.lowerTriangle);
}
//scrollerRect
created = true;
if (!this.scroller) {
this.scroller = document.createElementNS(svgNS,"rect");
this.scroller.setAttributeNS(null,"pointer-events","none");
this.scroller.setAttributeNS(null,"id","selScroller_"+this.id);
created = false;
}
this.scroller.setAttributeNS(null,"x",this.xOffset + this.width - this.cellHeight);
this.scroller.setAttributeNS(null,"y",this.yOffset + this.cellHeight + this.scrollStep * this.curLowerIndex);
this.scroller.setAttributeNS(null,"width",this.cellHeight);
this.scroller.setAttributeNS(null,"height",this.scrollerHeight);
for (var attrib in this.smallrectStyles) {
this.scroller.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
if (!created) {
this.parentGroup.appendChild(this.scroller);
}
}
}
combobox.prototype.handleEvent = function(evt) {
var el = evt.currentTarget;
var callerId = el.getAttributeNS(null,"id");
var myRegExp = new RegExp(this.id);
if (evt.type == "mouseover") {
if (myRegExp.test(callerId)) {
if (callerId.match(/\bselHighlightSelection_/)) {
if (this.mouseDownStatus) {
this.selectOrUnselect(evt);
evt.stopPropagation();
}
else {
if (!this.svgRootHasEventListener) {
document.documentElement.addEventListener("mouseover",this,false);
document.documentElement.addEventListener("keypress",this,false);
this.svgRootHasEventListener = true;
}
}
}
}
if (!myRegExp.test(evt.target.getAttributeNS(null,"id"))) {
//case that the event comes from the documentRoot element
//but not from the combobox itself
this.mouseDownStatus = false;
document.documentElement.removeEventListener("mouseover",this,false);
document.documentElement.removeEventListener("keypress",this,false);
this.svgRootHasEventListener = false;
}
}
if (evt.type == "mousedown") {
if (myRegExp.test(callerId)) {
if (callerId.match(/\bselHighlightSelection_/)) {
this.selectOrUnselect(evt);
this.mouseDownStatus = true;
document.documentElement.addEventListener("mouseup",this,false);
evt.stopPropagation();
}
}
if (callerId.match(/\bselScrollUpperRect_|\bselScrollLowerRect/)) {
this.scrollDir = "down";
this.scrollActive = true;
document.documentElement.addEventListener("mouseup",this,false);
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_/)) {
this.scrollBarMove(evt);
}
}
if (evt.type == "mouseup") {
if (myRegExp.test(callerId)) {
if (callerId.match(/\bselHighlightSelection_/)) {
this.mouseDownStatus = false;
if (this.panStatus) {
this.scrollBarMove(evt);
}
if (this.scrollActive) {
this.scrollActive = false;
document.documentElement.removeEventListener("mouseup",this,false);
}
evt.stopPropagation();
}
if (callerId.match(/\bselScrollUpperRect_|\bselScrollLowerRect/)) {
this.scrollActive = false;
}
}
if (el.nodeName == "svg") {
if (this.panStatus) {
//stop scroll mode
this.scrollBarMove(evt);
}
if (this.scrollActive) {
this.scrollActive = false;
document.documentElement.removeEventListener("mouseup",this,false);
}
}
}
if (evt.type == "mousemove") {
if (el.nodeName == "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();
}
}
}
combobox.prototype.moveTo = function(moveX,moveY) {
this.xOffset = moveX;
this.yOffset = moveY;
this.createOrUpdateCombobox();
}
combobox.prototype.resize = function(newWidth) {
this.width = newWidth;
this.createOrUpdateCombobox();
}
combobox.prototype.resetPressedKeys = function() {
this.keyTimer = undefined;
this.pressedKeys = "";
}
combobox.prototype.selectOrUnselect = function(evt) {
var mySelEl = evt.target;
var result = mySelEl.getAttributeNS(null,"id").split("_");
var idNr = result[2]; //the numerical id in the array
if (this.multiple) {
//multiple selections are allowed
if (evt.type == "mousedown") {
if (evt.ctrlKey) {
if (this.elementsArray[idNr].value) {
mySelEl.setAttributeNS(null,"fill",this.boxStyles["fill"]);
if (mySelEl.hasAttributeNS(null,"fill-opacity")) {
mySelEl.removeAttributeNS(null,"fill-opacity");
}
this.elementsArray[idNr].value = false;
}
else {
for (var attrib in this.highlightStyles) {
mySelEl.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
this.elementsArray[idNr].value = true;
}
}
else {
if (evt.shiftKey) {
var selectedArray = new Array();
for (var i=0;i<this.elementsArray.length;i++) {
//see how many and where elements are already selected
if (this.elementsArray[i].value) {
selectedArray.push(i);
}
}
if (selectedArray.length == 0) {
//if no element was selected we select the given element
for (var attrib in this.highlightStyles) {
mySelEl.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
this.elementsArray[idNr].value = true;
}
else {
//now we need to calculate the distances to other
var distance = this.elementsArray.length;
var nearestElement = 0;
for (var i=0;i<selectedArray.length;i++) {
var tempDist = Math.abs(idNr - selectedArray[i]);
if (tempDist < distance) {
distance = tempDist;
nearestElement = selectedArray[i];
}
}
if (nearestElement < idNr) {
var lowerIndex = nearestElement;
var upperIndex = idNr;
}
else {
var lowerIndex = idNr;
var upperIndex = nearestElement;
}
for (var i=lowerIndex;i<=upperIndex;i++) {
var mySelEl = document.getElementById("selHighlightSelection_" + this.id + "_" + i);
for (var attrib in this.highlightStyles) {
mySelEl.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
this.elementsArray[i].value = true;
}
}
}
else {
this.deselectAll(false);
for (var attrib in this.highlightStyles) {
mySelEl.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
this.elementsArray[idNr].value = true;
}
}
}
if (evt.type == "mouseover") {
for (var attrib in this.highlightStyles) {
mySelEl.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
this.elementsArray[idNr].value = true;
}
}
else {
//only one selection is allowed at the time
this.deselectAll(false);
for (var attrib in this.highlightStyles) {
mySelEl.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
this.elementsArray[idNr].value = true;
}
if (this.functionToCall) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.deselectAll = function(fireFunction) {
for (var i=0;i<this.elementsArray.length;i++) {
if (this.elementsArray[i].value) {
this.elementsArray[i].value = false;
if (i >= this.curLowerIndex && i < (this.curLowerIndex + this.heightNrElements)) {
var mySelEl = document.getElementById("selHighlightSelection_" + this.id + "_" + i);
mySelEl.setAttributeNS(null,"fill",this.boxStyles["fill"]);
if (mySelEl.hasAttributeNS(null,"fill-opacity")) {
mySelEl.removeAttributeNS(null,"fill-opacity");
}
}
}
}
if (fireFunction) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.selectAll = function(fireFunction) {
for (var i=0;i<this.elementsArray.length;i++) {
if (!this.elementsArray[i].value) {
this.elementsArray[i].value = true;
if (i >= this.curLowerIndex && i < (this.curLowerIndex + this.heightNrElements)) {
var mySelEl = document.getElementById("selHighlightSelection_" + this.id + "_" + i);
for (var attrib in this.highlightStyles) {
mySelEl.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
}
}
}
if (fireFunction) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.invertSelection = function(fireFunction) {
for (var i=0;i<this.elementsArray.length;i++) {
if (this.elementsArray[i].value) {
this.elementsArray[i].value = false;
if (i >= this.curLowerIndex && i < (this.curLowerIndex + this.heightNrElements)) {
var mySelEl = document.getElementById("selHighlightSelection_" + this.id + "_" + i);
mySelEl.setAttributeNS(null,"fill",this.boxStyles["fill"]);
if (mySelEl.hasAttributeNS(null,"fill-opacity")) {
mySelEl.removeAttributeNS(null,"fill-opacity");
}
}
}
else {
this.elementsArray[i].value = true;
if (i >= this.curLowerIndex && i < (this.curLowerIndex + this.heightNrElements)) {
var mySelEl = document.getElementById("selHighlightSelection_" + this.id + "_" + i);
for (var attrib in this.highlightStyles) {
mySelEl.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
}
}
}
if (fireFunction) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.fireFunction = function() {
var selectedArray = new Array();
var selectedArrayIndizes = new Array();
for (var i=0;i<this.elementsArray.length;i++) {
//see how many and where elements are already selected
if (this.elementsArray[i].value) {
selectedArray.push(this.elementsArray[i].key);
selectedArrayIndizes.push(i);
}
}
if (typeof(this.functionToCall) == "function") {
this.functionToCall(this.id,selectedArray,selectedArrayIndizes);
}
if (typeof(this.functionToCall) == "object") {
this.functionToCall.getComboboxVals(this.id,selectedArray,selectedArrayIndizes);
}
if (typeof(this.functionToCall) == undefined) {
return;
}
}
combobox.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)
}
}
combobox.prototype.scroll = function(scrollDir,scrollNr,scrollBool) {
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) {
this.scroller.setAttributeNS(null,"y",parseFloat(this.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",this.yOffset + this.cellHeight * i);
node.setAttributeNS(null,"width",this.width - this.cellHeight - this.textPadding);
node.setAttributeNS(null,"height",this.cellHeight);
if (this.elementsArray[this.curLowerIndex + i].value) {
for (var attrib in this.highlightStyles) {
node.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
}
else {
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
if (node.hasAttributeNS(null,"fill-opacity")) {
node.removeAttributeNS(null,"fill-opacity");
}
}
node.setAttributeNS(null,"id","selHighlightSelection_" + this.id + "_" + (i + this.curLowerIndex));
//add event-handler
node.addEventListener("mousedown", this, false);
node.addEventListener("mouseover", this, false);
node.addEventListener("mouseup", this, false);
this.comboElementsGroup.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",this.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].key);
node.appendChild(selectionText);
this.comboElementsGroup.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.comboElementsGroup.removeChild(node);
var node = document.getElementById("selHighlightSelection_" + this.id +"_" + (k + this.curLowerIndex));
this.comboElementsGroup.removeChild(node);
}
}
else if ((this.curLowerIndex < (this.elementsArray.length - this.heightNrElements)) && (scrollDir == "down")) {
//move Scroller
if (scrollBool == true) {
this.scroller.setAttributeNS(null,"y",parseFloat(this.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.comboElementsGroup.removeChild(node);
var node = document.getElementById("selHighlightSelection_" + this.id + "_" + (this.curLowerIndex + i));
this.comboElementsGroup.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",this.yOffset + this.cellHeight * (k - scrollNr));
node.setAttributeNS(null,"width",this.width - this.cellHeight - this.textPadding);
node.setAttributeNS(null,"height",this.cellHeight);
if (this.elementsArray[this.curLowerIndex + k].value) {
for (var attrib in this.highlightStyles) {
node.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
}
else {
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
if (node.hasAttributeNS(null,"fill-opacity")) {
node.removeAttributeNS(null,"fill-opacity");
}
}
node.setAttribute("id","selHighlightSelection_" + this.id + "_" + (k + this.curLowerIndex));
//add event-handler
node.addEventListener("mousedown", this, false);
node.addEventListener("mouseover", this, false);
node.addEventListener("mouseup", this, false);
this.comboElementsGroup.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",this.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].key);
node.appendChild(selectionText);
this.comboElementsGroup.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.comboElementsGroup.removeChild(node);
var node = document.getElementById("selHighlightSelection_" + this.id +"_" + (i + this.curLowerIndex));
this.comboElementsGroup.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",this.yOffset + this.cellHeight * i);
node.setAttributeNS(null,"width",this.width - this.cellHeight - this.textPadding);
node.setAttributeNS(null,"height",this.cellHeight);
if (this.elementsArray[this.curLowerIndex + i].value) {
for (var attrib in this.highlightStyles) {
node.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
}
else {
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
if (node.hasAttributeNS(null,"fill-opacity")) {
node.removeAttributeNS(null,"fill-opacity");
}
}
node.setAttributeNS(null,"id","selHighlightSelection_" + this.id + "_" + (i + this.curLowerIndex));
//add event-handler
node.addEventListener("mousedown", this, false);
node.addEventListener("mouseover", this, false);
node.addEventListener("mouseup", this, false);
this.comboElementsGroup.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",this.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].key);
node.appendChild(selectionText);
this.comboElementsGroup.appendChild(node);
}
}
}
//event listener for Scrollbar element
combobox.prototype.scrollBarMove = function(evt) {
var scrollerMinY = parseFloat(this.scrollbarRect.getAttributeNS(null,"y"));
var scrollerMaxY = parseFloat(this.scrollbarRect.getAttributeNS(null,"y")) + parseFloat(this.scrollbarRect.getAttributeNS(null,"height")) - parseFloat(this.scroller.getAttributeNS(null,"height"));
if (evt.type == "mousedown") {
this.panStatus = true;
//add event listeners to root element
var svgroot = document.documentElement;
svgroot.addEventListener("mousemove", this, false);
svgroot.addEventListener("mouseup", this, false);
for (var attrib in this.triangleStyles) {
this.scroller.setAttributeNS(null,attrib,this.triangleStyles[attrib]);
}
var coordPoint = myMapApp.calcCoord(evt,this.parentGroup);
this.panY = coordPoint.y;
var oldY = parseFloat(this.scroller.getAttributeNS(null,"y"));
var newY = this.panY - parseFloat(this.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;
this.scroller.setAttributeNS(null,"y",newY);
this.scroll(scrollDir,scrollNr,false);
}
}
if (evt.type == "mouseup") {
if (this.panStatus == true) {
var newY = parseFloat(this.scroller.getAttributeNS(null,"y"));
for (var attrib in this.smallrectStyles) {
this.scroller.setAttributeNS(null,attrib,this.smallrectStyles[attrib]);
}
this.scroller.setAttributeNS(null,"y",this.yOffset + this.cellHeight + this.scrollStep * this.curLowerIndex);
}
var svgroot = document.documentElement;
svgroot.removeEventListener("mousemove", this, false);
svgroot.removeEventListener("mouseup", this, false);
this.panStatus = false;
}
if (evt.type == "mousemove") {
if (this.panStatus == true) {
var coordPoint = myMapApp.calcCoord(evt,this.parentGroup);
var panNewEvtY = coordPoint.y;
var panDiffY = panNewEvtY - this.panY;
var oldY = parseFloat(this.scroller.getAttributeNS(null,"y"));
var newY = oldY + panDiffY;
if (newY < scrollerMinY) {
newY = scrollerMinY;
}
if (newY > scrollerMaxY) {
newY = scrollerMaxY;
}
var panDiffY = newY - oldY;
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;
this.scroller.setAttributeNS(null,"y",newY);
this.panY = panNewEvtY;
}
}
}
combobox.prototype.scrollToKey = function() {
for (var i=0;i<this.elementsArray.length;i++) {
if (this.elementsArray[i].key.toLowerCase().substr(0,this.pressedKeys.length) == this.pressedKeys) {
this.curLowerIndex = i;
if (this.curLowerIndex > (this.elementsArray.length - this.heightNrElements)) {
this.curLowerIndex = this.elementsArray.length - this.heightNrElements;
}
this.createOrUpdateCombobox();
break;
}
}
}
combobox.prototype.elementExists = function(elementName) {
var result = -1;
for (i=0;i<this.elementsArray.length;i++) {
if (this.elementsArray[i].key == elementName) {
result = i;
}
}
return result;
}
combobox.prototype.selectElementsByName = function(elementNames,fireFunction) {
var idsToSelect = new Array();
for (var i=0;i<elementNames.length;i++) {
var indexNr = this.elementExists(elementNames[i].key);
if (indexNr != -1) {
idsToSelect.push({index:indexNr,value:elementNames[i].value});
}
}
if (idsToSelect.length > 0) {
this.selectElementsByPosition(idsToSelect,fireFunction);
}
}
combobox.prototype.selectElementsByPosition = function(positionArray,fireFunction) {
for (var i=0;i<positionArray.length;i++) {
if (positionArray[i].index < this.elementsArray.length) {
if (positionArray[i].index >= this.curLowerIndex && positionArray[i].index < (this.curLowerIndex + this.heightNrElements)) {
var node = document.getElementById("selHighlightSelection_" + this.id + "_" + positionArray[i].index);
if (positionArray[i].value) {
for (var attrib in this.highlightStyles) {
node.setAttributeNS(null,attrib,this.highlightStyles[attrib]);
}
}
else {
node.setAttributeNS(null,"fill",this.boxStyles["fill"]);
if (node.hasAttributeNS(null,"fill-opacity")) {
node.removeAttributeNS(null,"fill-opacity");
}
}
}
this.elementsArray[positionArray[i].index].value = positionArray[i].value;
}
}
if (fireFunction) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.sortList = function(direction) {
//direction: asc|desc, for ascending or descending
var mySelElementString = this.elementsArray[this.activeSelection];
this.elementsArray.sort(function mySort(a,b) {
if (a.key > b.key) {
return 1;
}
else {
return -1;
}
});
if (direction == "desc") {
this.elementsArray.reverse();
}
this.createOrUpdateCombobox();
}
combobox.prototype.deleteElementsByName = function(elementNames,fireFunction) {
for (var i=0;i<elementNames.length;i++) {
existsPosition = this.elementExists(elementNames[i]);
if (existsPosition != -1) {
var tempArray = new Array;
tempArray = tempArray.concat(this.elementsArray.slice(0,existsPosition),this.elementsArray.slice(existsPosition + 1,this.elementsArray.length));
this.elementsArray = tempArray;
if (existsPosition < this.curLowerIndex) {
this.curLowerIndex--;
}
}
}
this.createOrUpdateCombobox();
if (fireFunction) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.deleteElementByPosition = function(elementPosition,fireFunction) {
if (elementPosition < this.elementsArray.length) {
var tempArray = new Array;
tempArray = tempArray.concat(this.elementsArray.slice(0,elementPosition),this.elementsArray.slice(elementPosition + 1,this.elementsArray.length));
this.elementsArray = tempArray;
if (elementPosition < this.curLowerIndex) {
this.curLowerIndex -= 1;
}
}
this.createOrUpdateCombobox();
if (fireFunction) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.addElementAtPosition = function(element,position,fireFunction) {
if (position > this.elementsArray.length) {
this.elementsArray.push(element);
position = this.elementsArray.length - 1;
}
else {
var tempArray = new Array;
tempArray = tempArray.concat(this.elementsArray.slice(0,position),element,this.elementsArray.slice(position,this.elementsArray.length));
this.elementsArray = tempArray;
}
if (position < this.curLowerIndex) {
this.curLowerIndex += 1;
}
this.createOrUpdateCombobox();
if (fireFunction) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.addElementsAlphabetically = function(elementsArr,direction,fireFunction) {
this.elementsArray = this.elementsArray.concat(elementsArr);
this.sortList(direction);
if (fireFunction) {
this.timer.setTimeout("fireFunction",this.timerMs);
}
}
combobox.prototype.getCurrentSelections = function() {
var selectedArray = new Array();
for (var i=0;i<this.elementsArray.length;i++) {
//see how many and where elements are already selected
if (this.elementsArray[i].value) {
selectedArray.push(this.elementsArray[i].key);
}
}
return selectedArray;
}
combobox.prototype.getCurrentSelectionsIndex = function() {
var selectedArrayIndizes = new Array();
for (var i=0;i<this.elementsArray.length;i++) {
//see how many and where elements are already selected
if (this.elementsArray[i].value) {
selectedArrayIndizes.push(i);
}
}
return selectedArrayIndizes;
}
combobox.prototype.removeCombobox = function() {
//remove all Elements of combobox
this.exists = false;
while (this.parentGroup.hasChildNodes()) {
this.parentGroup.removeChild(this.parentGroup.firstChild);
}
}
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