// Copyright 2008, 2009 Hannes Hochreiner
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see http://www.gnu.org/licenses/.
// Set onload event handler.
window.onload = jessyInkInit;
// Creating a namespace dictionary. The standard Inkscape namespaces are taken from inkex.py.
var NSS = new Object();
NSS['sodipodi']='http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd';
NSS['cc']='http://web.resource.org/cc/';
NSS['svg']='http://www.w3.org/2000/svg';
NSS['dc']='http://purl.org/dc/elements/1.1/';
NSS['rdf']='http://www.w3.org/1999/02/22-rdf-syntax-ns#';
NSS['inkscape']='http://www.inkscape.org/namespaces/inkscape';
NSS['xlink']='http://www.w3.org/1999/xlink';
NSS['xml']='http://www.w3.org/XML/1998/namespace';
NSS['jessyink']='https://launchpad.net/jessyink';
// Keycodes.
var LEFT_KEY = 37; // cursor left keycode
var UP_KEY = 38; // cursor up keycode
var RIGHT_KEY = 39; // cursor right keycode
var DOWN_KEY = 40; // cursor down keycode
var PAGE_UP_KEY = 33; // page up keycode
var PAGE_DOWN_KEY = 34; // page down keycode
var HOME_KEY = 36; // home keycode
var END_KEY = 35; // end keycode
var ENTER_KEY = 13; // next slide
var SPACE_KEY = 32;
var ESCAPE_KEY = 27;
// Presentation modes.
var SLIDE_MODE = 1;
var INDEX_MODE = 2;
var DRAWING_MODE = 3;
// Mouse handler actions.
var MOUSE_UP = 1;
var MOUSE_DOWN = 2;
var MOUSE_MOVE = 3;
var MOUSE_WHEEL = 4;
// Parameters.
var ROOT_NODE = document.getElementsByTagNameNS(NSS["svg"], "svg")[0];
var HEIGHT = 0;
var WIDTH = 0;
var INDEX_COLUMNS_DEFAULT = 4;
var INDEX_COLUMNS = INDEX_COLUMNS_DEFAULT;
var INDEX_OFFSET = 0;
var STATE_START = -1;
var STATE_END = -2;
var BACKGROUND_COLOR = null;
var slides = new Array();
// Initialisation.
var currentMode = SLIDE_MODE;
var masterSlide = null;
var activeSlide = 0;
var activeEffect = 0;
var timeStep = 30; // 40 ms equal 25 frames per second.
var lastFrameTime = null;
var processingEffect = false;
var transCounter = 0;
var effectArray = 0;
var defaultTransitionInDict = new Object();
defaultTransitionInDict["name"] = "appear";
var defaultTransitionOutDict = new Object();
defaultTransitionOutDict["name"] = "appear";
var jessyInkInitialised = false;
// Initialise char and key code dictionaries.
var charCodeDictionary = getDefaultCharCodeDictionary();
var keyCodeDictionary = getDefaultKeyCodeDictionary();
// Initialise mouse handler dictionary.
var mouseHandlerDictionary = getDefaultMouseHandlerDictionary();
var progress_bar_visible = false;
var timer_elapsed = 0;
var timer_start = timer_elapsed;
var timer_duration = 15; // 15 minutes
var history_counter = 0;
var history_original_elements = new Array();
var history_presentation_elements = new Array();
var mouse_original_path = null;
var mouse_presentation_path = null;
var mouse_last_x = -1;
var mouse_last_y = -1;
var mouse_min_dist_sqr = 3 * 3;
var path_colour = "red";
var path_width_default = 3;
var path_width = path_width_default;
var path_paint_width = path_width;
var number_of_added_slides = 0;
/** Initialisation function.
* The whole presentation is set-up in this function.
*/
function jessyInkInit()
{
// Make sure we only execute this code once. Double execution can occur if the onload event handler is set
// in the main svg tag as well (as was recommended in earlier versions). Executing this function twice does
// not lead to any problems, but it takes more time.
if (jessyInkInitialised)
return;
// Making the presentation scaleable.
var VIEWBOX = ROOT_NODE.getAttribute("viewBox");
if (VIEWBOX)
{
WIDTH = ROOT_NODE.viewBox.animVal.width;
HEIGHT = ROOT_NODE.viewBox.animVal.height;
}
else
{
HEIGHT = parseFloat(ROOT_NODE.getAttribute("height"));
WIDTH = parseFloat(ROOT_NODE.getAttribute("width"));
ROOT_NODE.setAttribute("viewBox", "0 0 " + WIDTH + " " + HEIGHT);
}
ROOT_NODE.setAttribute("width", "100%");
ROOT_NODE.setAttribute("height", "100%");
// Setting the background color.
var namedViews = document.getElementsByTagNameNS(NSS["sodipodi"], "namedview");
for (var counter = 0; counter < namedViews.length; counter++)
{
if (namedViews[counter].hasAttribute("id") && namedViews[counter].hasAttribute("pagecolor"))
{
if (namedViews[counter].getAttribute("id") == "base")
{
BACKGROUND_COLOR = namedViews[counter].getAttribute("pagecolor");
var newAttribute = "background-color:" + BACKGROUND_COLOR + ";";
if (ROOT_NODE.hasAttribute("style"))
newAttribute += ROOT_NODE.getAttribute("style");
ROOT_NODE.setAttribute("style", newAttribute);
}
}
}
// Defining clip-path.
var defsNodes = document.getElementsByTagNameNS(NSS["svg"], "defs");
if (defsNodes.length > 0)
{
var existingClipPath = document.getElementById("jessyInkSlideClipPath");
if (!existingClipPath)
{
var rectNode = document.createElementNS(NSS["svg"], "rect");
var clipPath = document.createElementNS(NSS["svg"], "clipPath");
rectNode.setAttribute("x", 0);
rectNode.setAttribute("y", 0);
rectNode.setAttribute("width", WIDTH);
rectNode.setAttribute("height", HEIGHT);
clipPath.setAttribute("id", "jessyInkSlideClipPath");
clipPath.setAttribute("clipPathUnits", "userSpaceOnUse");
clipPath.appendChild(rectNode);
defsNodes[0].appendChild(clipPath);
}
}
// Making a list of the slide and finding the master slide.
var nodes = document.getElementsByTagNameNS(NSS["svg"], "g");
var tempSlides = new Array();
var existingJessyInkPresentationLayer = null;
for (var counter = 0; counter < nodes.length; counter++)
{
if (nodes[counter].getAttributeNS(NSS["inkscape"], "groupmode") && (nodes[counter].getAttributeNS(NSS["inkscape"], "groupmode") == "layer"))
{
if (nodes[counter].getAttributeNS(NSS["inkscape"], "label") && nodes[counter].getAttributeNS(NSS["jessyink"], "masterSlide") == "masterSlide")
masterSlide = nodes[counter];
else if (nodes[counter].getAttributeNS(NSS["inkscape"], "label") && nodes[counter].getAttributeNS(NSS["jessyink"], "presentationLayer") == "presentationLayer")
existingJessyInkPresentationLayer = nodes[counter];
else
tempSlides.push(nodes[counter].getAttribute("id"));
}
else if (nodes[counter].getAttributeNS(NSS['jessyink'], 'element'))
{
handleElement(nodes[counter]);
}
}
// Hide master slide set default transitions.
if (masterSlide)
{
masterSlide.style.display = "none";
if (masterSlide.hasAttributeNS(NSS["jessyink"], "transitionIn"))
defaultTransitionInDict = propStrToDict(masterSlide.getAttributeNS(NSS["jessyink"], "transitionIn"));
if (masterSlide.hasAttributeNS(NSS["jessyink"], "transitionOut"))
defaultTransitionOutDict = propStrToDict(masterSlide.getAttributeNS(NSS["jessyink"], "transitionOut"));
}
if (existingJessyInkPresentationLayer != null)
{
existingJessyInkPresentationLayer.parentNode.removeChild(existingJessyInkPresentationLayer);
}
// Set start slide.
var hashObj = new LocationHash(window.location.hash);
activeSlide = hashObj.slideNumber;
activeEffect = hashObj.effectNumber;
if (activeSlide < 0)
activeSlide = 0;
else if (activeSlide >= tempSlides.length)
activeSlide = tempSlides.length - 1;
var originalNode = document.getElementById(tempSlides[counter]);
var JessyInkPresentationLayer = document.createElementNS(NSS["svg"], "g");
JessyInkPresentationLayer.setAttributeNS(NSS["inkscape"], "groupmode", "layer");
JessyInkPresentationLayer.setAttributeNS(NSS["inkscape"], "label", "JessyInk Presentation Layer");
JessyInkPresentationLayer.setAttributeNS(NSS["jessyink"], "presentationLayer", "presentationLayer");
JessyInkPresentationLayer.setAttribute("id", "jessyink_presentation_layer");
JessyInkPresentationLayer.style.display = "inherit";
ROOT_NODE.appendChild(JessyInkPresentationLayer);
// Gathering all the information about the transitions and effects of the slides, set the background
// from the master slide and substitute the auto-texts.
for (var counter = 0; counter < tempSlides.length; counter++)
{
var originalNode = document.getElementById(tempSlides[counter]);
originalNode.style.display = "none";
var node = suffixNodeIds(originalNode.cloneNode(true), "_" + counter);
JessyInkPresentationLayer.appendChild(node);
slides[counter] = new Object();
slides[counter]["original_element"] = originalNode;
slides[counter]["element"] = node;
// Set build in transition.
slides[counter]["transitionIn"] = new Object();
var dict;
if (node.hasAttributeNS(NSS["jessyink"], "transitionIn"))
dict = propStrToDict(node.getAttributeNS(NSS["jessyink"], "transitionIn"));
else
dict = defaultTransitionInDict;
slides[counter]["transitionIn"]["name"] = dict["name"];
slides[counter]["transitionIn"]["options"] = new Object();
for (key in dict)
if (key != "name")
slides[counter]["transitionIn"]["options"][key] = dict[key];
// Set build out transition.
slides[counter]["transitionOut"] = new Object();
if (node.hasAttributeNS(NSS["jessyink"], "transitionOut"))
dict = propStrToDict(node.getAttributeNS(NSS["jessyink"], "transitionOut"));
else
dict = defaultTransitionOutDict;
slides[counter]["transitionOut"]["name"] = dict["name"];
slides[counter]["transitionOut"]["options"] = new Object();
for (key in dict)
if (key != "name")
slides[counter]["transitionOut"]["options"][key] = dict[key];
// Copy master slide content.
if (masterSlide)
{
var clonedNode = suffixNodeIds(masterSlide.cloneNode(true), "_" + counter);
clonedNode.removeAttributeNS(NSS["inkscape"], "groupmode");
clonedNode.removeAttributeNS(NSS["inkscape"], "label");
clonedNode.style.display = "inherit";
node.insertBefore(clonedNode, node.firstChild);
}
// Setting clip path.
node.setAttribute("clip-path", "url(#jessyInkSlideClipPath)");
// Substitute auto texts.
substituteAutoTexts(node, node.getAttributeNS(NSS["inkscape"], "label"), counter + 1, tempSlides.length);
node.removeAttributeNS(NSS["inkscape"], "groupmode");
node.removeAttributeNS(NSS["inkscape"], "label");
// Set effects.
var tempEffects = new Array();
var groups = new Object();
for (var IOCounter = 0; IOCounter <= 1; IOCounter++)
{
var propName = "";
var dir = 0;
if (IOCounter == 0)
{
propName = "effectIn";
dir = 1;
}
else if (IOCounter == 1)
{
propName = "effectOut";
dir = -1;
}
var effects = getElementsByPropertyNS(node, NSS["jessyink"], propName);
for (var effectCounter = 0; effectCounter < effects.length; effectCounter++)
{
var element = document.getElementById(effects[effectCounter]);
var dict = propStrToDict(element.getAttributeNS(NSS["jessyink"], propName));
// Put every element that has an effect associated with it, into its own group.
// Unless of course, we already put it into its own group.
if (!(groups[element.id]))
{
var newGroup = document.createElementNS(NSS["svg"], "g");
element.parentNode.insertBefore(newGroup, element);
newGroup.appendChild(element.parentNode.removeChild(element));
groups[element.id] = newGroup;
}
var effectDict = new Object();
effectDict["effect"] = dict["name"];
effectDict["dir"] = dir;
effectDict["element"] = groups[element.id];
for (var option in dict)
{
if ((option != "name") && (option != "order"))
{
if (!effectDict["options"])
effectDict["options"] = new Object();
effectDict["options"][option] = dict[option];
}
}
if (!tempEffects[dict["order"]])
tempEffects[dict["order"]] = new Array();
tempEffects[dict["order"]][tempEffects[dict["order"]].length] = effectDict;
}
}
// Make invisible, but keep in rendering tree to ensure that bounding box can be calculated.
node.setAttribute("opacity",0);
node.style.display = "inherit";
// Create a transform group.
var transformGroup = document.createElementNS(NSS["svg"], "g");
// Add content to transform group.
while (node.firstChild)
transformGroup.appendChild(node.firstChild);
// Transfer the transform attribute from the node to the transform group.
if (node.getAttribute("transform"))
{
transformGroup.setAttribute("transform", node.getAttribute("transform"));
node.removeAttribute("transform");
}
// Create a view group.
var viewGroup = document.createElementNS(NSS["svg"], "g");
viewGroup.appendChild(transformGroup);
slides[counter]["viewGroup"] = node.appendChild(viewGroup);
// Insert background.
if (BACKGROUND_COLOR != null)
{
var rectNode = document.createElementNS(NSS["svg"], "rect");
rectNode.setAttribute("x", 0);
rectNode.setAttribute("y", 0);
rectNode.setAttribute("width", WIDTH);
rectNode.setAttribute("height", HEIGHT);
rectNode.setAttribute("id", "jessyInkBackground" + counter);
rectNode.setAttribute("fill", BACKGROUND_COLOR);
slides[counter]["viewGroup"].insertBefore(rectNode, slides[counter]["viewGroup"].firstChild);
}
// Set views.
var tempViews = new Array();
var views = getElementsByPropertyNS(node, NSS["jessyink"], "view");
var matrixOld = (new matrixSVG()).fromElements(1, 0, 0, 0, 1, 0, 0, 0, 1);
// Set initial view even if there are no other views.
slides[counter]["viewGroup"].setAttribute("transform", matrixOld.toAttribute());
slides[counter].initialView = matrixOld.toAttribute();
for (var viewCounter = 0; viewCounter < views.length; viewCounter++)
{
var element = document.getElementById(views[viewCounter]);
var dict = propStrToDict(element.getAttributeNS(NSS["jessyink"], "view"));
if (dict["order"] == 0)
{
matrixOld = pointMatrixToTransformation(rectToMatrix(element)).mult((new matrixSVG()).fromSVGMatrix(slides[counter].viewGroup.getScreenCTM()).inv().mult((new matrixSVG()).fromSVGMatrix(element.parentNode.getScreenCTM())).inv());
slides[counter].initialView = matrixOld.toAttribute();
}
else
{
var effectDict = new Object();
effectDict["effect"] = dict["name"];
effectDict["dir"] = 1;
effectDict["element"] = slides[counter]["viewGroup"];
effectDict["order"] = dict["order"];
for (var option in dict)
{
if ((option != "name") && (option != "order"))
{
if (!effectDict["options"])
effectDict["options"] = new Object();
effectDict["options"][option] = dict[option];
}
}
effectDict["options"]["matrixNew"] = pointMatrixToTransformation(rectToMatrix(element)).mult((new matrixSVG()).fromSVGMatrix(slides[counter].viewGroup.getScreenCTM()).inv().mult((new matrixSVG()).fromSVGMatrix(element.parentNode.getScreenCTM())).inv());
tempViews[dict["order"]] = effectDict;
}
// Remove element.
element.parentNode.removeChild(element);
}
// Consolidate view array and append it to the effect array.
if (tempViews.length > 0)
{
for (var viewCounter = 0; viewCounter < tempViews.length; viewCounter++)
{
if (tempViews[viewCounter])
{
tempViews[viewCounter]["options"]["matrixOld"] = matrixOld;
matrixOld = tempViews[viewCounter]["options"]["matrixNew"];
if (!tempEffects[tempViews[viewCounter]["order"]])
tempEffects[tempViews[viewCounter]["order"]] = new Array();
tempEffects[tempViews[viewCounter]["order"]][tempEffects[tempViews[viewCounter]["order"]].length] = tempViews[viewCounter];
}
}
}
// Set consolidated effect array.
if (tempEffects.length > 0)
{
slides[counter]["effects"] = new Array();
for (var effectCounter = 0; effectCounter < tempEffects.length; effectCounter++)
{
if (tempEffects[effectCounter])
slides[counter]["effects"][slides[counter]["effects"].length] = tempEffects[effectCounter];
}
}
node.setAttribute("onmouseover", "if ((currentMode == INDEX_MODE) && ( activeSlide != " + counter + ")) { indexSetActiveSlide(" + counter + "); };");
// Set visibility for initial state.
if (counter == activeSlide)
{
node.style.display = "inherit";
node.setAttribute("opacity",1);
}
else
{
node.style.display = "none";
node.setAttribute("opacity",0);
}
}
// Set key handler.
var jessyInkObjects = document.getElementsByTagNameNS(NSS["svg"], "g");
for (var counter = 0; counter < jessyInkObjects.length; counter++)
{
var elem = jessyInkObjects[counter];
if (elem.getAttributeNS(NSS["jessyink"], "customKeyBindings"))
{
if (elem.getCustomKeyBindings != undefined)
keyCodeDictionary = elem.getCustomKeyBindings();
if (elem.getCustomCharBindings != undefined)
charCodeDictionary = elem.getCustomCharBindings();
}
}
// Set mouse handler.
var jessyInkMouseHandler = document.getElementsByTagNameNS(NSS["jessyink"], "mousehandler");
for (var counter = 0; counter < jessyInkMouseHandler.length; counter++)
{
var elem = jessyInkMouseHandler[counter];
if (elem.getMouseHandler != undefined)
{
var tempDict = elem.getMouseHandler();
for (mode in tempDict)
{
if (!mouseHandlerDictionary[mode])
mouseHandlerDictionary[mode] = new Object();
for (handler in tempDict[mode])
mouseHandlerDictionary[mode][handler] = tempDict[mode][handler];
}
}
}
// Check effect number.
if ((activeEffect < 0) || (!slides[activeSlide].effects))
{
activeEffect = 0;
}
else if (activeEffect > slides[activeSlide].effects.length)
{
activeEffect = slides[activeSlide].effects.length;
}
createProgressBar(JessyInkPresentationLayer);
hideProgressBar();
setProgressBarValue(activeSlide);
setTimeIndicatorValue(0);
setInterval("updateTimer()", 1000);
setSlideToState(activeSlide, activeEffect);
jessyInkInitialised = true;
}
/** Function to subtitute the auto-texts.
*
* @param node the node
* @param slideName name of the slide the node is on
* @param slideNumber number of the slide the node is on
* @param numberOfSlides number of slides in the presentation
*/
function substituteAutoTexts(node, slideName, slideNumber, numberOfSlides)
{
var texts = node.getElementsByTagNameNS(NSS["svg"], "tspan");
for (var textCounter = 0; textCounter < texts.length; textCounter++)
{
if (texts[textCounter].getAttributeNS(NSS["jessyink"], "autoText") == "slideNumber")
texts[textCounter].firstChild.nodeValue = slideNumber;
else if (texts[textCounter].getAttributeNS(NSS["jessyink"], "autoText") == "numberOfSlides")
texts[textCounter].firstChild.nodeValue = numberOfSlides;
else if (texts[textCounter].getAttributeNS(NSS["jessyink"], "autoText") == "slideTitle")
texts[textCounter].firstChild.nodeValue = slideName;
}
}
/** Convenience function to get an element depending on whether it has a property with a particular name.
* This function emulates some dearly missed XPath functionality.
*
* @param node the node
* @param namespace namespace of the attribute
* @param name attribute name
*/
function getElementsByPropertyNS(node, namespace, name)
{
var elems = new Array();
if (node.getAttributeNS(namespace, name))
elems.push(node.getAttribute("id"));
for (var counter = 0; counter < node.childNodes.length; counter++)
{
if (node.childNodes[counter].nodeType == 1)
elems = elems.concat(getElementsByPropertyNS(node.childNodes[counter], namespace, name));
}
return elems;
}
/** Function to dispatch the next effect, if there is none left, change the slide.
*
* @param dir direction of the change (1 = forwards, -1 = backwards)
*/
function dispatchEffects(dir)
{
if (slides[activeSlide]["effects"] && (((dir == 1) && (activeEffect < slides[activeSlide]["effects"].length)) || ((dir == -1) && (activeEffect > 0))))
{
processingEffect = true;
if (dir == 1)
{
effectArray = slides[activeSlide]["effects"][activeEffect];
activeEffect += dir;
}
else if (dir == -1)
{
activeEffect += dir;
effectArray = slides[activeSlide]["effects"][activeEffect];
}
transCounter = 0;
startTime = (new Date()).getTime();
lastFrameTime = null;
effect(dir);
}
else if (((dir == 1) && (activeSlide < (slides.length - 1))) || (((dir == -1) && (activeSlide > 0))))
{
changeSlide(dir);
}
}
/** Function to skip effects and directly either put the slide into start or end state or change slides.
*
* @param dir direction of the change (1 = forwards, -1 = backwards)
*/
function skipEffects(dir)
{
if (slides[activeSlide]["effects"] && (((dir == 1) && (activeEffect < slides[activeSlide]["effects"].length)) || ((dir == -1) && (activeEffect > 0))))
{
processingEffect = true;
if (slides[activeSlide]["effects"] && (dir == 1))
activeEffect = slides[activeSlide]["effects"].length;
else
activeEffect = 0;
if (dir == 1)
setSlideToState(activeSlide, STATE_END);
else
setSlideToState(activeSlide, STATE_START);
processingEffect = false;
}
else if (((dir == 1) && (activeSlide < (slides.length - 1))) || (((dir == -1) && (activeSlide > 0))))
{
changeSlide(dir);
}
}
/** Function to change between slides.
*
* @param dir direction (1 = forwards, -1 = backwards)
*/
function changeSlide(dir)
{
processingEffect = true;
effectArray = new Array();
effectArray[0] = new Object();
if (dir == 1)
{
effectArray[0]["effect"] = slides[activeSlide]["transitionOut"]["name"];
effectArray[0]["options"] = slides[activeSlide]["transitionOut"]["options"];
effectArray[0]["dir"] = -1;
}
else if (dir == -1)
{
effectArray[0]["effect"] = slides[activeSlide]["transitionIn"]["name"];
effectArray[0]["options"] = slides[activeSlide]["transitionIn"]["options"];
effectArray[0]["dir"] = 1;
}
effectArray[0]["element"] = slides[activeSlide]["element"];
activeSlide += dir;
setProgressBarValue(activeSlide);
effectArray[1] = new Object();
if (dir == 1)
{
effectArray[1]["effect"] = slides[activeSlide]["transitionIn"]["name"];
effectArray[1]["options"] = slides[activeSlide]["transitionIn"]["options"];
effectArray[1]["dir"] = 1;
}
else if (dir == -1)
{
effectArray[1]["effect"] = slides[activeSlide]["transitionOut"]["name"];
effectArray[1]["options"] = slides[activeSlide]["transitionOut"]["options"];
effectArray[1]["dir"] = -1;
}
effectArray[1]["element"] = slides[activeSlide]["element"];
if (slides[activeSlide]["effects"] && (dir == -1))
activeEffect = slides[activeSlide]["effects"].length;
else
activeEffect = 0;
if (dir == -1)
setSlideToState(activeSlide, STATE_END);
else
setSlideToState(activeSlide, STATE_START);
transCounter = 0;
startTime = (new Date()).getTime();
lastFrameTime = null;
effect(dir);
}
/** Function to toggle between index and slide mode.
*/
function toggleSlideIndex()
{
var suspendHandle = ROOT_NODE.suspendRedraw(500);
if (currentMode == SLIDE_MODE)
{
hideProgressBar();
INDEX_OFFSET = -1;
indexSetPageSlide(activeSlide);
currentMode = INDEX_MODE;
}
else if (currentMode == INDEX_MODE)
{
for (var counter = 0; counter < slides.length; counter++)
{
slides[counter]["element"].setAttribute("transform","scale(1)");
if (counter == activeSlide)
{
slides[counter]["element"].style.display = "inherit";
slides[counter]["element"].setAttribute("opacity",1);
activeEffect = 0;
}
else
{
slides[counter]["element"].setAttribute("opacity",0);
slides[counter]["element"].style.display = "none";
}
}
currentMode = SLIDE_MODE;
setSlideToState(activeSlide, STATE_START);
setProgressBarValue(activeSlide);
if (progress_bar_visible)
{
showProgressBar();
}
}
ROOT_NODE.unsuspendRedraw(suspendHandle);
ROOT_NODE.forceRedraw();
}
/** Function to run an effect.
*
* @param dir direction in which to play the effect (1 = forwards, -1 = backwards)
*/
function effect(dir)
{
var done = true;
var suspendHandle = ROOT_NODE.suspendRedraw(200);
for (var counter = 0; counter < effectArray.length; counter++)
{
if (effectArray[counter]["effect"] == "fade")
done &= fade(parseInt(effectArray[counter]["dir"]) * dir, effectArray[counter]["element"], transCounter, effectArray[counter]["options"]);
else if (effectArray[counter]["effect"] == "appear")
done &= appear(parseInt(effectArray[counter]["dir"]) * dir, effectArray[counter]["element"], transCounter, effectArray[counter]["options"]);
else if (effectArray[counter]["effect"] == "pop")
done &= pop(parseInt(effectArray[counter]["dir"]) * dir, effectArray[counter]["element"], transCounter, effectArray[counter]["options"]);
else if (effectArray[counter]["effect"] == "view")
done &= view(parseInt(effectArray[counter]["dir"]) * dir, effectArray[counter]["element"], transCounter, effectArray[counter]["options"]);
}
ROOT_NODE.unsuspendRedraw(suspendHandle);
ROOT_NODE.forceRedraw();
if (!done)
{
var currentTime = (new Date()).getTime();
var timeDiff = 1;
transCounter = currentTime - startTime;
if (lastFrameTime != null)
{
timeDiff = timeStep - (currentTime - lastFrameTime);
if (timeDiff <= 0)
timeDiff = 1;
}
lastFrameTime = currentTime;
window.setTimeout("effect(" + dir + ")", timeDiff);
}
else
{
window.location.hash = (activeSlide + 1) + '_' + activeEffect;
processingEffect = false;
}
}
/** Function to display the index sheet.
*
* @param offsetNumber offset number
*/
function displayIndex(offsetNumber)
{
var offsetX = 0;
var offsetY = 0;
if (offsetNumber < 0)
offsetNumber = 0;
else if (offsetNumber >= slides.length)
offsetNumber = slides.length - 1;
for (var counter = 0; counter < slides.length; counter++)
{
if ((counter < offsetNumber) || (counter > offsetNumber + INDEX_COLUMNS * INDEX_COLUMNS - 1))
{
slides[counter]["element"].setAttribute("opacity",0);
slides[counter]["element"].style.display = "none";
}
else
{
offsetX = ((counter - offsetNumber) % INDEX_COLUMNS) * WIDTH;
offsetY = Math.floor((counter - offsetNumber) / INDEX_COLUMNS) * HEIGHT;
slides[counter]["element"].setAttribute("transform","scale("+1/INDEX_COLUMNS+") translate("+offsetX+","+offsetY+")");
slides[counter]["element"].style.display = "inherit";
slides[counter]["element"].setAttribute("opacity",0.5);
}
setSlideToState(counter, STATE_END);
}
//do we need to save the current offset?
if (INDEX_OFFSET != offsetNumber)
INDEX_OFFSET = offsetNumber;
}
/** Function to set the active slide in the slide view.
*
* @param nbr index of the active slide
*/
function slideSetActiveSlide(nbr)
{
if (nbr >= slides.length)
nbr = slides.length - 1;
else if (nbr < 0)
nbr = 0;
slides[activeSlide]["element"].setAttribute("opacity",0);
slides[activeSlide]["element"].style.display = "none";
activeSlide = parseInt(nbr);
setSlideToState(activeSlide, STATE_START);
slides[activeSlide]["element"].style.display = "inherit";
slides[activeSlide]["element"].setAttribute("opacity",1);
activeEffect = 0;
setProgressBarValue(nbr);
}
/** Function to set the active slide in the index view.
*
* @param nbr index of the active slide
*/
function indexSetActiveSlide(nbr)
{
if (nbr >= slides.length)
nbr = slides.length - 1;
else if (nbr < 0)
nbr = 0;
slides[activeSlide]["element"].setAttribute("opacity",0.5);
activeSlide = parseInt(nbr);
window.location.hash = (activeSlide + 1) + '_0';
slides[activeSlide]["element"].setAttribute("opacity",1);
}
/** Function to set the page and active slide in index view.
*
* @param nbr index of the active slide
*
* NOTE: To force a redraw,
* set INDEX_OFFSET to -1 before calling indexSetPageSlide().
*
* This is necessary for zooming (otherwise the index might not
* get redrawn) and when switching to index mode.
*
* INDEX_OFFSET = -1
* indexSetPageSlide(activeSlide);
*/
function indexSetPageSlide(nbr)
{
if (nbr >= slides.length)
nbr = slides.length - 1;
else if (nbr < 0)
nbr = 0;
//calculate the offset
var offset = nbr - nbr % (INDEX_COLUMNS * INDEX_COLUMNS);
if (offset < 0)
offset = 0;
//if different from kept offset, then record and change the page
if (offset != INDEX_OFFSET)
{
INDEX_OFFSET = offset;
displayIndex(INDEX_OFFSET);
}
//set the active slide
indexSetActiveSlide(nbr);
}
/** Event handler for key press.
*
* @param e the event
*/
function keydown(e)
{
if (!e)
e = window.event;
code = e.keyCode || e.charCode;
if (!processingEffect && keyCodeDictionary[currentMode] && keyCodeDictionary[currentMode][code])
return keyCodeDictionary[currentMode][code]();
else
document.onkeypress = keypress;
}
// Set event handler for key down.
document.onkeydown = keydown;
/** Event handler for key press.
*
* @param e the event
*/
function keypress(e)
{
document.onkeypress = null;
if (!e)
e = window.event;
str = String.fromCharCode(e.keyCode || e.charCode);
if (!processingEffect && charCodeDictionary[currentMode] && charCodeDictionary[currentMode][str])
return charCodeDictionary[currentMode][str]();
}
/** Function to supply the default char code dictionary.
*
* @returns default char code dictionary
*/
function getDefaultCharCodeDictionary()
{
var charCodeDict = new Object();
charCodeDict[SLIDE_MODE] = new Object();
charCodeDict[INDEX_MODE] = new Object();
charCodeDict[DRAWING_MODE] = new Object();
charCodeDict[SLIDE_MODE]["i"] = function () { return toggleSlideIndex(); };
charCodeDict[SLIDE_MODE]["d"] = function () { return slideSwitchToDrawingMode(); };
charCodeDict[SLIDE_MODE]["D"] = function () { return slideQueryDuration(); };
charCodeDict[SLIDE_MODE]["n"] = function () { return slideAddSlide(activeSlide); };
charCodeDict[SLIDE_MODE]["p"] = function () { return slideToggleProgressBarVisibility(); };
charCodeDict[SLIDE_MODE]["t"] = function () { return slideResetTimer(); };
charCodeDict[SLIDE_MODE]["e"] = function () { return slideUpdateExportLayer(); };
charCodeDict[DRAWING_MODE]["d"] = function () { return drawingSwitchToSlideMode(); };
charCodeDict[DRAWING_MODE]["0"] = function () { return drawingResetPathWidth(); };
charCodeDict[DRAWING_MODE]["1"] = function () { return drawingSetPathWidth(1.0); };
charCodeDict[DRAWING_MODE]["3"] = function () { return drawingSetPathWidth(3.0); };
charCodeDict[DRAWING_MODE]["5"] = function () { return drawingSetPathWidth(5.0); };
charCodeDict[DRAWING_MODE]["7"] = function () { return drawingSetPathWidth(7.0); };
charCodeDict[DRAWING_MODE]["9"] = function () { return drawingSetPathWidth(9.0); };
charCodeDict[DRAWING_MODE]["b"] = function () { return drawingSetPathColour("blue"); };
charCodeDict[DRAWING_MODE]["c"] = function () { return drawingSetPathColour("cyan"); };
charCodeDict[DRAWING_MODE]["g"] = function () { return drawingSetPathColour("green"); };
charCodeDict[DRAWING_MODE]["k"] = function () { return drawingSetPathColour("black"); };
charCodeDict[DRAWING_MODE]["m"] = function () { return drawingSetPathColour("magenta"); };
charCodeDict[DRAWING_MODE]["o"] = function () { return drawingSetPathColour("orange"); };
charCodeDict[DRAWING_MODE]["r"] = function () { return drawingSetPathColour("red"); };
charCodeDict[DRAWING_MODE]["w"] = function () { return drawingSetPathColour("white"); };
charCodeDict[DRAWING_MODE]["y"] = function () { return drawingSetPathColour("yellow"); };
charCodeDict[DRAWING_MODE]["z"] = function () { return drawingUndo(); };
charCodeDict[INDEX_MODE]["i"] = function () { return toggleSlideIndex(); };
charCodeDict[INDEX_MODE]["-"] = function () { return indexDecreaseNumberOfColumns(); };
charCodeDict[INDEX_MODE]["="] = function () { return indexIncreaseNumberOfColumns(); };
charCodeDict[INDEX_MODE]["+"] = function () { return indexIncreaseNumberOfColumns(); };
charCodeDict[INDEX_MODE]["0"] = function () { return indexResetNumberOfColumns(); };
return charCodeDict;
}
/** Function to supply the default key code dictionary.
*
* @returns default key code dictionary
*/
function getDefaultKeyCodeDictionary()
{
var keyCodeDict = new Object();
keyCodeDict[SLIDE_MODE] = new Object();
keyCodeDict[INDEX_MODE] = new Object();
keyCodeDict[DRAWING_MODE] = new Object();
keyCodeDict[SLIDE_MODE][LEFT_KEY] = function() { return dispatchEffects(-1); };
keyCodeDict[SLIDE_MODE][RIGHT_KEY] = function() { return dispatchEffects(1); };
keyCodeDict[SLIDE_MODE][UP_KEY] = function() { return skipEffects(-1); };
keyCodeDict[SLIDE_MODE][DOWN_KEY] = function() { return skipEffects(1); };
keyCodeDict[SLIDE_MODE][PAGE_UP_KEY] = function() { return dispatchEffects(-1); };
keyCodeDict[SLIDE_MODE][PAGE_DOWN_KEY] = function() { return dispatchEffects(1); };
keyCodeDict[SLIDE_MODE][HOME_KEY] = function() { return slideSetActiveSlide(0); };
keyCodeDict[SLIDE_MODE][END_KEY] = function() { return slideSetActiveSlide(slides.length - 1); };
keyCodeDict[SLIDE_MODE][SPACE_KEY] = function() { return dispatchEffects(1); };
keyCodeDict[INDEX_MODE][LEFT_KEY] = function() { return indexSetPageSlide(activeSlide - 1); };
keyCodeDict[INDEX_MODE][RIGHT_KEY] = function() { return indexSetPageSlide(activeSlide + 1); };
keyCodeDict[INDEX_MODE][UP_KEY] = function() { return indexSetPageSlide(activeSlide - INDEX_COLUMNS); };
keyCodeDict[INDEX_MODE][DOWN_KEY] = function() { return indexSetPageSlide(activeSlide + INDEX_COLUMNS); };
keyCodeDict[INDEX_MODE][PAGE_UP_KEY] = function() { return indexSetPageSlide(activeSlide - INDEX_COLUMNS * INDEX_COLUMNS); };
keyCodeDict[INDEX_MODE][PAGE_DOWN_KEY] = function() { return indexSetPageSlide(activeSlide + INDEX_COLUMNS * INDEX_COLUMNS); };
keyCodeDict[INDEX_MODE][HOME_KEY] = function() { return indexSetPageSlide(0); };
keyCodeDict[INDEX_MODE][END_KEY] = function() { return indexSetPageSlide(slides.length - 1); };
keyCodeDict[INDEX_MODE][ENTER_KEY] = function() { return toggleSlideIndex(); };
keyCodeDict[DRAWING_MODE][ESCAPE_KEY] = function () { return drawingSwitchToSlideMode(); };
return keyCodeDict;
}
/** Function to handle all mouse events.
*
* @param evnt event
* @param action type of event (e.g. mouse up, mouse wheel)
*/
function mouseHandlerDispatch(evnt, action)
{
if (!evnt)
evnt = window.event;
var retVal = true;
if (!processingEffect && mouseHandlerDictionary[currentMode] && mouseHandlerDictionary[currentMode][action])
{
var subRetVal = mouseHandlerDictionary[currentMode][action](evnt);
if (subRetVal != null && subRetVal != undefined)
retVal = subRetVal;
}
if (evnt.preventDefault && !retVal)
evnt.preventDefault();
evnt.returnValue = retVal;
return retVal;
}
// Set mouse event handler.
document.onmousedown = function(e) { return mouseHandlerDispatch(e, MOUSE_DOWN); };
document.onmouseup = function(e) { return mouseHandlerDispatch(e, MOUSE_UP); };
document.onmousemove = function(e) { return mouseHandlerDispatch(e, MOUSE_MOVE); };
// Moz
if (window.addEventListener)
{
window.addEventListener('DOMMouseScroll', function(e) { return mouseHandlerDispatch(e, MOUSE_WHEEL); }, false);
}
// Opera Safari OK - may not work in IE
window.onmousewheel = function(e) { return mouseHandlerDispatch(e, MOUSE_WHEEL); };
/** Function to supply the default mouse handler dictionary.
*
* @returns default mouse handler dictionary
*/
function getDefaultMouseHandlerDictionary()
{
var mouseHandlerDict = new Object();
mouseHandlerDict[SLIDE_MODE] = new Object();
mouseHandlerDict[INDEX_MODE] = new Object();
mouseHandlerDict[DRAWING_MODE] = new Object();
mouseHandlerDict[SLIDE_MODE][MOUSE_DOWN] = function(evnt) { return dispatchEffects(1); };
mouseHandlerDict[SLIDE_MODE][MOUSE_WHEEL] = function(evnt) { return slideMousewheel(evnt); };
mouseHandlerDict[INDEX_MODE][MOUSE_DOWN] = function(evnt) { return toggleSlideIndex(); };
mouseHandlerDict[DRAWING_MODE][MOUSE_DOWN] = function(evnt) { return drawingMousedown(evnt); };
mouseHandlerDict[DRAWING_MODE][MOUSE_UP] = function(evnt) { return drawingMouseup(evnt); };
mouseHandlerDict[DRAWING_MODE][MOUSE_MOVE] = function(evnt) { return drawingMousemove(evnt); };
return mouseHandlerDict;
}
/** Function to switch from slide mode to drawing mode.
*/
function slideSwitchToDrawingMode()
{
currentMode = DRAWING_MODE;
var tempDict;
if (ROOT_NODE.hasAttribute("style"))
tempDict = propStrToDict(ROOT_NODE.getAttribute("style"));
else
tempDict = new Object();
tempDict["cursor"] = "crosshair";
ROOT_NODE.setAttribute("style", dictToPropStr(tempDict));
}
/** Function to switch from drawing mode to slide mode.
*/
function drawingSwitchToSlideMode()
{
currentMode = SLIDE_MODE;
var tempDict;
if (ROOT_NODE.hasAttribute("style"))
tempDict = propStrToDict(ROOT_NODE.getAttribute("style"));
else
tempDict = new Object();
tempDict["cursor"] = "auto";
ROOT_NODE.setAttribute("style", dictToPropStr(tempDict));
}
/** Function to decrease the number of columns in index mode.
*/
function indexDecreaseNumberOfColumns()
{
if (INDEX_COLUMNS >= 3)
{
INDEX_COLUMNS -= 1;
INDEX_OFFSET = -1
indexSetPageSlide(activeSlide);
}
}
/** Function to increase the number of columns in index mode.
*/
function indexIncreaseNumberOfColumns()
{
if (INDEX_COLUMNS < 7)
{
INDEX_COLUMNS += 1;
INDEX_OFFSET = -1
indexSetPageSlide(activeSlide);
}
}
/** Function to reset the number of columns in index mode.
*/
function indexResetNumberOfColumns()
{
if (INDEX_COLUMNS != INDEX_COLUMNS_DEFAULT)
{
INDEX_COLUMNS = INDEX_COLUMNS_DEFAULT;
INDEX_OFFSET = -1
indexSetPageSlide(activeSlide);
}
}
/** Function to reset path width in drawing mode.
*/
function drawingResetPathWidth()
{
path_width = path_width_default;
set_path_paint_width();
}
/** Function to set path width in drawing mode.
*
* @param width new path width
*/
function drawingSetPathWidth(width)
{
path_width = width;
set_path_paint_width();
}
/** Function to set path colour in drawing mode.
*
* @param colour new path colour
*/
function drawingSetPathColour(colour)
{
path_colour = colour;
}
/** Function to query the duration of the presentation from the user in slide mode.
*/
function slideQueryDuration()
{
var new_duration = prompt("Length of presentation in minutes?", timer_duration);
if ((new_duration != null) && (new_duration != ''))
{
timer_duration = new_duration;
}
updateTimer();
}
/** Function to add new slide in slide mode.
*
* @param afterSlide after which slide to insert the new one
*/
function slideAddSlide(afterSlide)
{
addSlide(afterSlide);
slideSetActiveSlide(afterSlide + 1);
updateTimer();
}
/** Function to toggle the visibility of the progress bar in slide mode.
*/
function slideToggleProgressBarVisibility()
{
if (progress_bar_visible)
{
progress_bar_visible = false;
hideProgressBar();
}
else
{
progress_bar_visible = true;
showProgressBar();
}
}
/** Function to reset the timer in slide mode.
*/
function slideResetTimer()
{
timer_start = timer_elapsed;
updateTimer();
}
/** Convenience function to pad a string with zero in front up to a certain length.
*/
function padString(str, len)
{
var outStr = str;
while (outStr.length < len)
{
outStr = '0' + outStr;
}
return outStr;
}
/** Function to update the export layer.
*/
function slideUpdateExportLayer()
{
// Suspend redraw since we are going to mess with the slides.
var suspendHandle = ROOT_NODE.suspendRedraw(2000);
var tmpActiveSlide = activeSlide;
var tmpActiveEffect = activeEffect;
var exportedLayers = new Array();
for (var counterSlides = 0; counterSlides < slides.length; counterSlides++)
{
var exportNode;
setSlideToState(counterSlides, STATE_START);
var maxEffect = 0;
if (slides[counterSlides].effects)
{
maxEffect = slides[counterSlides].effects.length;
}
exportNode = slides[counterSlides].element.cloneNode(true);
exportNode.setAttributeNS(NSS["inkscape"], "groupmode", "layer");
exportNode.setAttributeNS(NSS["inkscape"], "label", "slide_" + padString((counterSlides + 1).toString(), slides.length.toString().length) + "_effect_" + padString("0", maxEffect.toString().length));
exportedLayers.push(exportNode);
if (slides[counterSlides]["effects"])
{
for (var counter = 0; counter < slides[counterSlides]["effects"].length; counter++)
{
for (var subCounter = 0; subCounter < slides[counterSlides]["effects"][counter].length; subCounter++)
{
var effect = slides[counterSlides]["effects"][counter][subCounter];
if (effect["effect"] == "fade")
fade(parseInt(effect["dir"]), effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "appear")
appear(parseInt(effect["dir"]), effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "pop")
pop(parseInt(effect["dir"]), effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "view")
view(parseInt(effect["dir"]), effect["element"], STATE_END, effect["options"]);
}
var layerName = "slide_" + padString((counterSlides + 1).toString(), slides.length.toString().length) + "_effect_" + padString((counter + 1).toString(), maxEffect.toString().length);
exportNode = slides[counterSlides].element.cloneNode(true);
exportNode.setAttributeNS(NSS["inkscape"], "groupmode", "layer");
exportNode.setAttributeNS(NSS["inkscape"], "label", layerName);
exportNode.setAttribute("id", layerName);
exportedLayers.push(exportNode);
}
}
}
activeSlide = tmpActiveSlide;
activeEffect = tmpActiveEffect;
setSlideToState(activeSlide, activeEffect);
// Copy image.
var newDoc = document.documentElement.cloneNode(true);
// Delete viewbox form new imag and set width and height.
newDoc.removeAttribute('viewbox');
newDoc.setAttribute('width', WIDTH);
newDoc.setAttribute('height', HEIGHT);
// Delete all layers and script elements.
var nodesToBeRemoved = new Array();
for (var childCounter = 0; childCounter < newDoc.childNodes.length; childCounter++)
{
var child = newDoc.childNodes[childCounter];
if (child.nodeType == 1)
{
if ((child.nodeName.toUpperCase() == 'G') || (child.nodeName.toUpperCase() == 'SCRIPT'))
{
nodesToBeRemoved.push(child);
}
}
}
for (var ndCounter = 0; ndCounter < nodesToBeRemoved.length; ndCounter++)
{
var nd = nodesToBeRemoved[ndCounter];
// Before removing the node, check whether it contains any definitions.
var defs = nd.getElementsByTagNameNS(NSS["svg"], "defs");
for (var defsCounter = 0; defsCounter < defs.length; defsCounter++)
{
if (defs[defsCounter].id)
{
newDoc.appendChild(defs[defsCounter].cloneNode(true));
}
}
// Remove node.
nd.parentNode.removeChild(nd);
}
// Set current layer.
if (exportedLayers[0])
{
var namedView;
for (var nodeCounter = 0; nodeCounter < newDoc.childNodes.length; nodeCounter++)
{
if ((newDoc.childNodes[nodeCounter].nodeType == 1) && (newDoc.childNodes[nodeCounter].getAttribute('id') == 'base'))
{
namedView = newDoc.childNodes[nodeCounter];
}
}
if (namedView)
{
namedView.setAttributeNS(NSS['inkscape'], 'current-layer', exportedLayers[0].getAttributeNS(NSS['inkscape'], 'label'));
}
}
// Add exported layers.
while (exportedLayers.length > 0)
{
var nd = exportedLayers.pop();
nd.setAttribute("opacity",1);
nd.style.display = "inherit";
newDoc.appendChild(nd);
}
// Serialise the new document.
window.location = 'data:application/svg+xml;base64;charset=utf-8,' + window.btoa(unescape(encodeURIComponent((new XMLSerializer()).serializeToString(newDoc))));
// Unsuspend redraw.
ROOT_NODE.unsuspendRedraw(suspendHandle);
ROOT_NODE.forceRedraw();
}
/** Function to undo last drawing operation.
*/
function drawingUndo()
{
mouse_presentation_path = null;
mouse_original_path = null;
if (history_presentation_elements.length > 0)
{
var p = history_presentation_elements.pop();
var parent = p.parentNode.removeChild(p);
p = history_original_elements.pop();
parent = p.parentNode.removeChild(p);
}
}
/** Event handler for mouse down in drawing mode.
*
* @param e the event
*/
function drawingMousedown(e)
{
var value = 0;
if (e.button)
value = e.button;
else if (e.which)
value = e.which;
if (value == 1)
{
history_counter++;
var p = calcCoord(e);
mouse_last_x = e.clientX;
mouse_last_y = e.clientY;
mouse_original_path = document.createElementNS(NSS["svg"], "path");
mouse_original_path.setAttribute("stroke", path_colour);
mouse_original_path.setAttribute("stroke-width", path_paint_width);
mouse_original_path.setAttribute("fill", "none");
mouse_original_path.setAttribute("id", "path " + Date());
mouse_original_path.setAttribute("d", "M" + p.x + "," + p.y);
slides[activeSlide]["original_element"].appendChild(mouse_original_path);
history_original_elements.push(mouse_original_path);
mouse_presentation_path = document.createElementNS(NSS["svg"], "path");
mouse_presentation_path.setAttribute("stroke", path_colour);
mouse_presentation_path.setAttribute("stroke-width", path_paint_width);
mouse_presentation_path.setAttribute("fill", "none");
mouse_presentation_path.setAttribute("id", "path " + Date() + " presentation copy");
mouse_presentation_path.setAttribute("d", "M" + p.x + "," + p.y);
if (slides[activeSlide]["viewGroup"])
slides[activeSlide]["viewGroup"].appendChild(mouse_presentation_path);
else
slides[activeSlide]["element"].appendChild(mouse_presentation_path);
history_presentation_elements.push(mouse_presentation_path);
return false;
}
return true;
}
/** Event handler for mouse up in drawing mode.
*
* @param e the event
*/
function drawingMouseup(e)
{
if(!e)
e = window.event;
if (mouse_presentation_path != null)
{
var p = calcCoord(e);
var d = mouse_presentation_path.getAttribute("d");
d += " L" + p.x + "," + p.y;
mouse_presentation_path.setAttribute("d", d);
mouse_presentation_path = null;
mouse_original_path.setAttribute("d", d);
mouse_original_path = null;
return false;
}
return true;
}
/** Event handler for mouse move in drawing mode.
*
* @param e the event
*/
function drawingMousemove(e)
{
if(!e)
e = window.event;
var dist = (mouse_last_x - e.clientX) * (mouse_last_x - e.clientX) + (mouse_last_y - e.clientY) * (mouse_last_y - e.clientY);
if (mouse_presentation_path == null)
{
return true;
}
if (dist >= mouse_min_dist_sqr)
{
var p = calcCoord(e);
var d = mouse_presentation_path.getAttribute("d");
d += " L" + p.x + "," + p.y;
mouse_presentation_path.setAttribute("d", d);
mouse_original_path.setAttribute("d", d);
mouse_last_x = e.clientX;
mouse_last_y = e.clientY;
}
return false;
}
/** Event handler for mouse wheel events in slide mode.
* based on http://adomas.org/javascript-mouse-wheel/
*
* @param e the event
*/
function slideMousewheel(e)
{
var delta = 0;
if (!e)
e = window.event;
if (e.wheelDelta)
{ // IE Opera
delta = e.wheelDelta/120;
}
else if (e.detail)
{ // MOZ
delta = -e.detail/3;
}
if (delta > 0)
skipEffects(-1);
else if (delta < 0)
skipEffects(1);
if (e.preventDefault)
e.preventDefault();
e.returnValue = false;
}
/** Event handler for mouse wheel events in index mode.
* based on http://adomas.org/javascript-mouse-wheel/
*
* @param e the event
*/
function indexMousewheel(e)
{
var delta = 0;
if (!e)
e = window.event;
if (e.wheelDelta)
{ // IE Opera
delta = e.wheelDelta/120;
}
else if (e.detail)
{ // MOZ
delta = -e.detail/3;
}
if (delta > 0)
indexSetPageSlide(activeSlide - INDEX_COLUMNS * INDEX_COLUMNS);
else if (delta < 0)
indexSetPageSlide(activeSlide + INDEX_COLUMNS * INDEX_COLUMNS);
if (e.preventDefault)
e.preventDefault();
e.returnValue = false;
}
/** Function to set the path paint width.
*/
function set_path_paint_width()
{
var svgPoint1 = document.documentElement.createSVGPoint();
var svgPoint2 = document.documentElement.createSVGPoint();
svgPoint1.x = 0.0;
svgPoint1.y = 0.0;
svgPoint2.x = 1.0;
svgPoint2.y = 0.0;
var matrix = slides[activeSlide]["element"].getTransformToElement(ROOT_NODE);
if (slides[activeSlide]["viewGroup"])
matrix = slides[activeSlide]["viewGroup"].getTransformToElement(ROOT_NODE);
svgPoint1 = svgPoint1.matrixTransform(matrix);
svgPoint2 = svgPoint2.matrixTransform(matrix);
path_paint_width = path_width / Math.sqrt((svgPoint2.x - svgPoint1.x) * (svgPoint2.x - svgPoint1.x) + (svgPoint2.y - svgPoint1.y) * (svgPoint2.y - svgPoint1.y));
}
/** The view effect.
*
* @param dir direction the effect should be played (1 = forwards, -1 = backwards)
* @param element the element the effect should be applied to
* @param time the time that has elapsed since the beginning of the effect
* @param options a dictionary with additional options (e.g. length of the effect); for the view effect the options need to contain the old and the new matrix.
*/
function view(dir, element, time, options)
{
var length = 250;
var fraction;
if (!options["matrixInitial"])
{
var tempString = slides[activeSlide]["viewGroup"].getAttribute("transform");
if (tempString)
options["matrixInitial"] = (new matrixSVG()).fromAttribute(tempString);
else
options["matrixInitial"] = (new matrixSVG()).fromSVGElements(1, 0, 0, 1, 0, 0);
}
if ((time == STATE_END) || (time == STATE_START))
fraction = 1;
else
{
if (options && options["length"])
length = options["length"];
fraction = time / length;
}
if (dir == 1)
{
if (fraction <= 0)
{
element.setAttribute("transform", options["matrixInitial"].toAttribute());
}
else if (fraction >= 1)
{
element.setAttribute("transform", options["matrixNew"].toAttribute());
set_path_paint_width();
options["matrixInitial"] = null;
return true;
}
else
{
element.setAttribute("transform", options["matrixInitial"].mix(options["matrixNew"], fraction).toAttribute());
}
}
else if (dir == -1)
{
if (fraction <= 0)
{
element.setAttribute("transform", options["matrixInitial"].toAttribute());
}
else if (fraction >= 1)
{
element.setAttribute("transform", options["matrixOld"].toAttribute());
set_path_paint_width();
options["matrixInitial"] = null;
return true;
}
else
{
element.setAttribute("transform", options["matrixInitial"].mix(options["matrixOld"], fraction).toAttribute());
}
}
return false;
}
/** The fade effect.
*
* @param dir direction the effect should be played (1 = forwards, -1 = backwards)
* @param element the element the effect should be applied to
* @param time the time that has elapsed since the beginning of the effect
* @param options a dictionary with additional options (e.g. length of the effect)
*/
function fade(dir, element, time, options)
{
var length = 250;
var fraction;
if ((time == STATE_END) || (time == STATE_START))
fraction = 1;
else
{
if (options && options["length"])
length = options["length"];
fraction = time / length;
}
if (dir == 1)
{
if (fraction <= 0)
{
element.style.display = "none";
element.setAttribute("opacity", 0);
}
else if (fraction >= 1)
{
element.style.display = "inherit";
element.setAttribute("opacity", 1);
return true;
}
else
{
element.style.display = "inherit";
element.setAttribute("opacity", fraction);
}
}
else if (dir == -1)
{
if (fraction <= 0)
{
element.style.display = "inherit";
element.setAttribute("opacity", 1);
}
else if (fraction >= 1)
{
element.setAttribute("opacity", 0);
element.style.display = "none";
return true;
}
else
{
element.style.display = "inherit";
element.setAttribute("opacity", 1 - fraction);
}
}
return false;
}
/** The appear effect.
*
* @param dir direction the effect should be played (1 = forwards, -1 = backwards)
* @param element the element the effect should be applied to
* @param time the time that has elapsed since the beginning of the effect
* @param options a dictionary with additional options (e.g. length of the effect)
*/
function appear(dir, element, time, options)
{
if (dir == 1)
{
element.style.display = "inherit";
element.setAttribute("opacity",1);
}
else if (dir == -1)
{
element.style.display = "none";
element.setAttribute("opacity",0);
}
return true;
}
/** The pop effect.
*
* @param dir direction the effect should be played (1 = forwards, -1 = backwards)
* @param element the element the effect should be applied to
* @param time the time that has elapsed since the beginning of the effect
* @param options a dictionary with additional options (e.g. length of the effect)
*/
function pop(dir, element, time, options)
{
var length = 500;
var fraction;
if ((time == STATE_END) || (time == STATE_START))
fraction = 1;
else
{
if (options && options["length"])
length = options["length"];
fraction = time / length;
}
if (dir == 1)
{
if (fraction <= 0)
{
element.setAttribute("opacity", 0);
element.setAttribute("transform", "scale(0)");
element.style.display = "none";
}
else if (fraction >= 1)
{
element.setAttribute("opacity", 1);
element.removeAttribute("transform");
element.style.display = "inherit";
return true;
}
else
{
element.style.display = "inherit";
var opacityFraction = fraction * 3;
if (opacityFraction > 1)
opacityFraction = 1;
element.setAttribute("opacity", opacityFraction);
var offsetX = WIDTH * (1.0 - fraction) / 2.0;
var offsetY = HEIGHT * (1.0 - fraction) / 2.0;
element.setAttribute("transform", "translate(" + offsetX + "," + offsetY + ") scale(" + fraction + ")");
}
}
else if (dir == -1)
{
if (fraction <= 0)
{
element.setAttribute("opacity", 1);
element.setAttribute("transform", "scale(1)");
element.style.display = "inherit";
}
else if (fraction >= 1)
{
element.setAttribute("opacity", 0);
element.removeAttribute("transform");
element.style.display = "none";
return true;
}
else
{
element.setAttribute("opacity", 1 - fraction);
element.setAttribute("transform", "scale(" + 1 - fraction + ")");
element.style.display = "inherit";
}
}
return false;
}
/** Function to set a slide either to the start or the end state.
*
* @param slide the slide to use
* @param state the state into which the slide should be set
*/
function setSlideToState(slide, state)
{
slides[slide]["viewGroup"].setAttribute("transform", slides[slide].initialView);
if (slides[slide]["effects"])
{
if (state == STATE_END)
{
for (var counter = 0; counter < slides[slide]["effects"].length; counter++)
{
for (var subCounter = 0; subCounter < slides[slide]["effects"][counter].length; subCounter++)
{
var effect = slides[slide]["effects"][counter][subCounter];
if (effect["effect"] == "fade")
fade(effect["dir"], effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "appear")
appear(effect["dir"], effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "pop")
pop(effect["dir"], effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "view")
view(effect["dir"], effect["element"], STATE_END, effect["options"]);
}
}
}
else if (state == STATE_START)
{
for (var counter = slides[slide]["effects"].length - 1; counter >= 0; counter--)
{
for (var subCounter = 0; subCounter < slides[slide]["effects"][counter].length; subCounter++)
{
var effect = slides[slide]["effects"][counter][subCounter];
if (effect["effect"] == "fade")
fade(parseInt(effect["dir"]) * -1, effect["element"], STATE_START, effect["options"]);
else if (effect["effect"] == "appear")
appear(parseInt(effect["dir"]) * -1, effect["element"], STATE_START, effect["options"]);
else if (effect["effect"] == "pop")
pop(parseInt(effect["dir"]) * -1, effect["element"], STATE_START, effect["options"]);
else if (effect["effect"] == "view")
view(parseInt(effect["dir"]) * -1, effect["element"], STATE_START, effect["options"]);
}
}
}
else
{
setSlideToState(slide, STATE_START);
for (var counter = 0; counter < slides[slide]["effects"].length && counter < state; counter++)
{
for (var subCounter = 0; subCounter < slides[slide]["effects"][counter].length; subCounter++)
{
var effect = slides[slide]["effects"][counter][subCounter];
if (effect["effect"] == "fade")
fade(effect["dir"], effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "appear")
appear(effect["dir"], effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "pop")
pop(effect["dir"], effect["element"], STATE_END, effect["options"]);
else if (effect["effect"] == "view")
view(effect["dir"], effect["element"], STATE_END, effect["options"]);
}
}
}
}
window.location.hash = (activeSlide + 1) + '_' + activeEffect;
}
/** Convenience function to translate a attribute string into a dictionary.
*
* @param str the attribute string
* @return a dictionary
* @see dictToPropStr
*/
function propStrToDict(str)
{
var list = str.split(";");
var obj = new Object();
for (var counter = 0; counter < list.length; counter++)
{
var subStr = list[counter];
var subList = subStr.split(":");
if (subList.length == 2)
{
obj[subList[0]] = subList[1];
}
}
return obj;
}
/** Convenience function to translate a dictionary into a string that can be used as an attribute.
*
* @param dict the dictionary to convert
* @return a string that can be used as an attribute
* @see propStrToDict
*/
function dictToPropStr(dict)
{
var str = "";
for (var key in dict)
{
str += key + ":" + dict[key] + ";";
}
return str;
}
/** Sub-function to add a suffix to the ids of the node and all its children.
*
* @param node the node to change
* @param suffix the suffix to add
* @param replace dictionary of replaced ids
* @see suffixNodeIds
*/
function suffixNoneIds_sub(node, suffix, replace)
{
if (node.nodeType == 1)
{
if (node.getAttribute("id"))
{
var id = node.getAttribute("id")
replace["#" + id] = id + suffix;
node.setAttribute("id", id + suffix);
}
if ((node.nodeName == "use") && (node.getAttributeNS(NSS["xlink"], "href")) && (replace[node.getAttribute(NSS["xlink"], "href")]))
node.setAttribute(NSS["xlink"], "href", node.getAttribute(NSS["xlink"], "href") + suffix);
if (node.childNodes)
{
for (var counter = 0; counter < node.childNodes.length; counter++)
suffixNoneIds_sub(node.childNodes[counter], suffix, replace);
}
}
}
/** Function to add a suffix to the ids of the node and all its children.
*
* @param node the node to change
* @param suffix the suffix to add
* @return the changed node
* @see suffixNodeIds_sub
*/
function suffixNodeIds(node, suffix)
{
var replace = new Object();
suffixNoneIds_sub(node, suffix, replace);
return node;
}
/** Function to build a progress bar.
*
* @param parent node to attach the progress bar to
*/
function createProgressBar(parent_node)
{
var g = document.createElementNS(NSS["svg"], "g");
g.setAttribute("clip-path", "url(#jessyInkSlideClipPath)");
g.setAttribute("id", "layer_progress_bar");
g.setAttribute("style", "display: none;");
var rect_progress_bar = document.createElementNS(NSS["svg"], "rect");
rect_progress_bar.setAttribute("style", "marker: none; fill: rgb(128, 128, 128); stroke: none;");
rect_progress_bar.setAttribute("id", "rect_progress_bar");
rect_progress_bar.setAttribute("x", 0);
rect_progress_bar.setAttribute("y", 0.99 * HEIGHT);
rect_progress_bar.setAttribute("width", 0);
rect_progress_bar.setAttribute("height", 0.01 * HEIGHT);
g.appendChild(rect_progress_bar);
var circle_timer_indicator = document.createElementNS(NSS["svg"], "circle");
circle_timer_indicator.setAttribute("style", "marker: none; fill: rgb(255, 0, 0); stroke: none;");
circle_timer_indicator.setAttribute("id", "circle_timer_indicator");
circle_timer_indicator.setAttribute("cx", 0.005 * HEIGHT);
circle_timer_indicator.setAttribute("cy", 0.995 * HEIGHT);
circle_timer_indicator.setAttribute("r", 0.005 * HEIGHT);
g.appendChild(circle_timer_indicator);
parent_node.appendChild(g);
}
/** Function to hide the progress bar.
*
*/
function hideProgressBar()
{
var progress_bar = document.getElementById("layer_progress_bar");
if (!progress_bar)
{
return;
}
progress_bar.setAttribute("style", "display: none;");
}
/** Function to show the progress bar.
*
*/
function showProgressBar()
{
var progress_bar = document.getElementById("layer_progress_bar");
if (!progress_bar)
{
return;
}
progress_bar.setAttribute("style", "display: inherit;");
}
/** Set progress bar value.
*
* @param value the current slide number
*
*/
function setProgressBarValue(value)
{
var rect_progress_bar = document.getElementById("rect_progress_bar");
if (!rect_progress_bar)
{
return;
}
if (value < 1)
{
// First slide, assumed to be the title of the presentation
var x = 0;
var w = 0.01 * HEIGHT;
}
else if (value >= slides.length - 1)
{
// Last slide, assumed to be the end of the presentation
var x = WIDTH - 0.01 * HEIGHT;
var w = 0.01 * HEIGHT;
}
else
{
value -= 1;
value /= (slides.length - 2);
var x = WIDTH * value;
var w = WIDTH / (slides.length - 2);
}
rect_progress_bar.setAttribute("x", x);
rect_progress_bar.setAttribute("width", w);
}
/** Set time indicator.
*
* @param value the percentage of time elapse so far between 0.0 and 1.0
*
*/
function setTimeIndicatorValue(value)
{
var circle_timer_indicator = document.getElementById("circle_timer_indicator");
if (!circle_timer_indicator)
{
return;
}
if (value < 0.0)
{
value = 0.0;
}
if (value > 1.0)
{
value = 1.0;
}
var cx = (WIDTH - 0.01 * HEIGHT) * value + 0.005 * HEIGHT;
circle_timer_indicator.setAttribute("cx", cx);
}
/** Update timer.
*
*/
function updateTimer()
{
timer_elapsed += 1;
setTimeIndicatorValue((timer_elapsed - timer_start) / (60 * timer_duration));
}
/** Convert screen coordinates to document coordinates.
*
* @param e event with screen coordinates
*
* @return coordinates in SVG file coordinate system
*/
function calcCoord(e)
{
var svgPoint = document.documentElement.createSVGPoint();
svgPoint.x = e.clientX + window.pageXOffset;
svgPoint.y = e.clientY + window.pageYOffset;
var matrix = slides[activeSlide]["element"].getScreenCTM();
if (slides[activeSlide]["viewGroup"])
matrix = slides[activeSlide]["viewGroup"].getScreenCTM();
svgPoint = svgPoint.matrixTransform(matrix.inverse());
return svgPoint;
}
/** Add slide.
*
* @param after_slide after which slide the new slide should be inserted into the presentation
*/
function addSlide(after_slide)
{
number_of_added_slides++;
var g = document.createElementNS(NSS["svg"], "g");
g.setAttribute("clip-path", "url(#jessyInkSlideClipPath)");
g.setAttribute("id", "Whiteboard " + Date() + " presentation copy");
g.setAttribute("style", "display: none;");
var new_slide = new Object();
new_slide["element"] = g;
// Set build in transition.
new_slide["transitionIn"] = new Object();
var dict = defaultTransitionInDict;
new_slide["transitionIn"]["name"] = dict["name"];
new_slide["transitionIn"]["options"] = new Object();
for (key in dict)
if (key != "name")
new_slide["transitionIn"]["options"][key] = dict[key];
// Set build out transition.
new_slide["transitionOut"] = new Object();
dict = defaultTransitionOutDict;
new_slide["transitionOut"]["name"] = dict["name"];
new_slide["transitionOut"]["options"] = new Object();
for (key in dict)
if (key != "name")
new_slide["transitionOut"]["options"][key] = dict[key];
// Copy master slide content.
if (masterSlide)
{
var clonedNode = suffixNodeIds(masterSlide.cloneNode(true), "_" + Date() + " presentation_copy");
clonedNode.removeAttributeNS(NSS["inkscape"], "groupmode");
clonedNode.removeAttributeNS(NSS["inkscape"], "label");
clonedNode.style.display = "inherit";
g.appendChild(clonedNode);
}
// Substitute auto texts.
substituteAutoTexts(g, "Whiteboard " + number_of_added_slides, "W" + number_of_added_slides, slides.length);
g.setAttribute("onmouseover", "if ((currentMode == INDEX_MODE) && ( activeSlide != " + (after_slide + 1) + ")) { indexSetActiveSlide(" + (after_slide + 1) + "); };");
// Create a transform group.
var transformGroup = document.createElementNS(NSS["svg"], "g");
// Add content to transform group.
while (g.firstChild)
transformGroup.appendChild(g.firstChild);
// Transfer the transform attribute from the node to the transform group.
if (g.getAttribute("transform"))
{
transformGroup.setAttribute("transform", g.getAttribute("transform"));
g.removeAttribute("transform");
}
// Create a view group.
var viewGroup = document.createElementNS(NSS["svg"], "g");
viewGroup.appendChild(transformGroup);
new_slide["viewGroup"] = g.appendChild(viewGroup);
// Insert background.
if (BACKGROUND_COLOR != null)
{
var rectNode = document.createElementNS(NSS["svg"], "rect");
rectNode.setAttribute("x", 0);
rectNode.setAttribute("y", 0);
rectNode.setAttribute("width", WIDTH);
rectNode.setAttribute("height", HEIGHT);
rectNode.setAttribute("id", "jessyInkBackground" + Date());
rectNode.setAttribute("fill", BACKGROUND_COLOR);
new_slide["viewGroup"].insertBefore(rectNode, new_slide["viewGroup"].firstChild);
}
// Set initial view even if there are no other views.
var matrixOld = (new matrixSVG()).fromElements(1, 0, 0, 0, 1, 0, 0, 0, 1);
new_slide["viewGroup"].setAttribute("transform", matrixOld.toAttribute());
new_slide.initialView = matrixOld.toAttribute();
// Insert slide
var node = slides[after_slide]["element"];
var next_node = node.nextSibling;
var parent_node = node.parentNode;
if (next_node)
{
parent_node.insertBefore(g, next_node);
}
else
{
parent_node.appendChild(g);
}
g = document.createElementNS(NSS["svg"], "g");
g.setAttributeNS(NSS["inkscape"], "groupmode", "layer");
g.setAttributeNS(NSS["inkscape"], "label", "Whiteboard " + number_of_added_slides);
g.setAttribute("clip-path", "url(#jessyInkSlideClipPath)");
g.setAttribute("id", "Whiteboard " + Date());
g.setAttribute("style", "display: none;");
new_slide["original_element"] = g;
node = slides[after_slide]["original_element"];
next_node = node.nextSibling;
parent_node = node.parentNode;
if (next_node)
{
parent_node.insertBefore(g, next_node);
}
else
{
parent_node.appendChild(g);
}
before_new_slide = slides.slice(0, after_slide + 1);
after_new_slide = slides.slice(after_slide + 1);
slides = before_new_slide.concat(new_slide, after_new_slide);
//resetting the counter attributes on the slides that follow the new slide...
for (var counter = after_slide+2; counter < slides.length; counter++)
{
slides[counter]["element"].setAttribute("onmouseover", "if ((currentMode == INDEX_MODE) && ( activeSlide != " + counter + ")) { indexSetActiveSlide(" + counter + "); };");
}
}
/** Convenience function to obtain a transformation matrix from a point matrix.
*
* @param mPoints Point matrix.
* @return A transformation matrix.
*/
function pointMatrixToTransformation(mPoints)
{
mPointsOld = (new matrixSVG()).fromElements(0, WIDTH, WIDTH, 0, 0, HEIGHT, 1, 1, 1);
return mPointsOld.mult(mPoints.inv());
}
/** Convenience function to obtain a matrix with three corners of a rectangle.
*
* @param rect an svg rectangle
* @return a matrixSVG containing three corners of the rectangle
*/
function rectToMatrix(rect)
{
rectWidth = rect.getBBox().width;
rectHeight = rect.getBBox().height;
rectX = rect.getBBox().x;
rectY = rect.getBBox().y;
rectXcorr = 0;
rectYcorr = 0;
scaleX = WIDTH / rectWidth;
scaleY = HEIGHT / rectHeight;
if (scaleX > scaleY)
{
scaleX = scaleY;
rectXcorr -= (WIDTH / scaleX - rectWidth) / 2;
rectWidth = WIDTH / scaleX;
}
else
{
scaleY = scaleX;
rectYcorr -= (HEIGHT / scaleY - rectHeight) / 2;
rectHeight = HEIGHT / scaleY;
}
if (rect.transform.baseVal.numberOfItems < 1)
{
mRectTrans = (new matrixSVG()).fromElements(1, 0, 0, 0, 1, 0, 0, 0, 1);
}
else
{
mRectTrans = (new matrixSVG()).fromSVGMatrix(rect.transform.baseVal.consolidate().matrix);
}
newBasePoints = (new matrixSVG()).fromElements(rectX, rectX, rectX, rectY, rectY, rectY, 1, 1, 1);
newVectors = (new matrixSVG()).fromElements(rectXcorr, rectXcorr + rectWidth, rectXcorr + rectWidth, rectYcorr, rectYcorr, rectYcorr + rectHeight, 0, 0, 0);
return mRectTrans.mult(newBasePoints.add(newVectors));
}
/** Function to handle JessyInk elements.
*
* @param node Element node.
*/
function handleElement(node)
{
if (node.getAttributeNS(NSS['jessyink'], 'element') == 'core.video')
{
var url;
var width;
var height;
var x;
var y;
var transform;
var tspans = node.getElementsByTagNameNS("http://www.w3.org/2000/svg", "tspan");
for (var tspanCounter = 0; tspanCounter < tspans.length; tspanCounter++)
{
if (tspans[tspanCounter].getAttributeNS("https://launchpad.net/jessyink", "video") == "url")
{
url = tspans[tspanCounter].firstChild.nodeValue;
}
}
var rects = node.getElementsByTagNameNS("http://www.w3.org/2000/svg", "rect");
for (var rectCounter = 0; rectCounter < rects.length; rectCounter++)
{
if (rects[rectCounter].getAttributeNS("https://launchpad.net/jessyink", "video") == "rect")
{
x = rects[rectCounter].getAttribute("x");
y = rects[rectCounter].getAttribute("y");
width = rects[rectCounter].getAttribute("width");
height = rects[rectCounter].getAttribute("height");
transform = rects[rectCounter].getAttribute("transform");
}
}
for (var childCounter = 0; childCounter < node.childNodes.length; childCounter++)
{
if (node.childNodes[childCounter].nodeType == 1)
{
if (node.childNodes[childCounter].style)
{
node.childNodes[childCounter].style.display = 'none';
}
else
{
node.childNodes[childCounter].setAttribute("style", "display: none;");
}
}
}
var foreignNode = document.createElementNS("http://www.w3.org/2000/svg", "foreignObject");
foreignNode.setAttribute("x", x);
foreignNode.setAttribute("y", y);
foreignNode.setAttribute("width", width);
foreignNode.setAttribute("height", height);
foreignNode.setAttribute("transform", transform);
var videoNode = document.createElementNS("http://www.w3.org/1999/xhtml", "video");
videoNode.setAttribute("src", url);
foreignNode.appendChild(videoNode);
node.appendChild(foreignNode);
}
}
/** Class processing the location hash.
*
* @param str location hash
*/
function LocationHash(str)
{
this.slideNumber = 0;
this.effectNumber = 0;
str = str.substr(1, str.length - 1);
var parts = str.split('_');
// Try to extract slide number.
if (parts.length >= 1)
{
try
{
var slideNumber = parseInt(parts[0]);
if (!isNaN(slideNumber))
{
this.slideNumber = slideNumber - 1;
}
}
catch (e)
{
}
}
// Try to extract effect number.
if (parts.length >= 2)
{
try
{
var effectNumber = parseInt(parts[1]);
if (!isNaN(effectNumber))
{
this.effectNumber = effectNumber;
}
}
catch (e)
{
}
}
}
/** Class representing an svg matrix.
*/
function matrixSVG()
{
this.e11 = 0; // a
this.e12 = 0; // c
this.e13 = 0; // e
this.e21 = 0; // b
this.e22 = 0; // d
this.e23 = 0; // f
this.e31 = 0;
this.e32 = 0;
this.e33 = 0;
}
/** Constructor function.
*
* @param a element a (i.e. 1, 1) as described in the svg standard.
* @param b element b (i.e. 2, 1) as described in the svg standard.
* @param c element c (i.e. 1, 2) as described in the svg standard.
* @param d element d (i.e. 2, 2) as described in the svg standard.
* @param e element e (i.e. 1, 3) as described in the svg standard.
* @param f element f (i.e. 2, 3) as described in the svg standard.
*/
matrixSVG.prototype.fromSVGElements = function(a, b, c, d, e, f)
{
this.e11 = a;
this.e12 = c;
this.e13 = e;
this.e21 = b;
this.e22 = d;
this.e23 = f;
this.e31 = 0;
this.e32 = 0;
this.e33 = 1;
return this;
}
/** Constructor function.
*
* @param matrix an svg matrix as described in the svg standard.
*/
matrixSVG.prototype.fromSVGMatrix = function(m)
{
this.e11 = m.a;
this.e12 = m.c;
this.e13 = m.e;
this.e21 = m.b;
this.e22 = m.d;
this.e23 = m.f;
this.e31 = 0;
this.e32 = 0;
this.e33 = 1;
return this;
}
/** Constructor function.
*
* @param e11 element 1, 1 of the matrix.
* @param e12 element 1, 2 of the matrix.
* @param e13 element 1, 3 of the matrix.
* @param e21 element 2, 1 of the matrix.
* @param e22 element 2, 2 of the matrix.
* @param e23 element 2, 3 of the matrix.
* @param e31 element 3, 1 of the matrix.
* @param e32 element 3, 2 of the matrix.
* @param e33 element 3, 3 of the matrix.
*/
matrixSVG.prototype.fromElements = function(e11, e12, e13, e21, e22, e23, e31, e32, e33)
{
this.e11 = e11;
this.e12 = e12;
this.e13 = e13;
this.e21 = e21;
this.e22 = e22;
this.e23 = e23;
this.e31 = e31;
this.e32 = e32;
this.e33 = e33;
return this;
}
/** Constructor function.
*
* @param attrString string value of the "transform" attribute (currently only "matrix" is accepted)
*/
matrixSVG.prototype.fromAttribute = function(attrString)
{
str = attrString.substr(7, attrString.length - 8);
str = str.trim();
strArray = str.split(",");
// Opera does not use commas to separate the values of the matrix, only spaces.
if (strArray.length != 6)
strArray = str.split(" ");
this.e11 = parseFloat(strArray[0]);
this.e21 = parseFloat(strArray[1]);
this.e31 = 0;
this.e12 = parseFloat(strArray[2]);
this.e22 = parseFloat(strArray[3]);
this.e32 = 0;
this.e13 = parseFloat(strArray[4]);
this.e23 = parseFloat(strArray[5]);
this.e33 = 1;
return this;
}
/** Output function
*
* @return a string that can be used as the "transform" attribute.
*/
matrixSVG.prototype.toAttribute = function()
{
return "matrix(" + this.e11 + ", " + this.e21 + ", " + this.e12 + ", " + this.e22 + ", " + this.e13 + ", " + this.e23 + ")";
}
/** Matrix nversion.
*
* @return the inverse of the matrix
*/
matrixSVG.prototype.inv = function()
{
out = new matrixSVG();
det = this.e11 * (this.e33 * this.e22 - this.e32 * this.e23) - this.e21 * (this.e33 * this.e12 - this.e32 * this.e13) + this.e31 * (this.e23 * this.e12 - this.e22 * this.e13);
out.e11 = (this.e33 * this.e22 - this.e32 * this.e23) / det;
out.e12 = -(this.e33 * this.e12 - this.e32 * this.e13) / det;
out.e13 = (this.e23 * this.e12 - this.e22 * this.e13) / det;
out.e21 = -(this.e33 * this.e21 - this.e31 * this.e23) / det;
out.e22 = (this.e33 * this.e11 - this.e31 * this.e13) / det;
out.e23 = -(this.e23 * this.e11 - this.e21 * this.e13) / det;
out.e31 = (this.e32 * this.e21 - this.e31 * this.e22) / det;
out.e32 = -(this.e32 * this.e11 - this.e31 * this.e12) / det;
out.e33 = (this.e22 * this.e11 - this.e21 * this.e12) / det;
return out;
}
/** Matrix multiplication.
*
* @param op another svg matrix
* @return this * op
*/
matrixSVG.prototype.mult = function(op)
{
out = new matrixSVG();
out.e11 = this.e11 * op.e11 + this.e12 * op.e21 + this.e13 * op.e31;
out.e12 = this.e11 * op.e12 + this.e12 * op.e22 + this.e13 * op.e32;
out.e13 = this.e11 * op.e13 + this.e12 * op.e23 + this.e13 * op.e33;
out.e21 = this.e21 * op.e11 + this.e22 * op.e21 + this.e23 * op.e31;
out.e22 = this.e21 * op.e12 + this.e22 * op.e22 + this.e23 * op.e32;
out.e23 = this.e21 * op.e13 + this.e22 * op.e23 + this.e23 * op.e33;
out.e31 = this.e31 * op.e11 + this.e32 * op.e21 + this.e33 * op.e31;
out.e32 = this.e31 * op.e12 + this.e32 * op.e22 + this.e33 * op.e32;
out.e33 = this.e31 * op.e13 + this.e32 * op.e23 + this.e33 * op.e33;
return out;
}
/** Matrix addition.
*
* @param op another svg matrix
* @return this + op
*/
matrixSVG.prototype.add = function(op)
{
out = new matrixSVG();
out.e11 = this.e11 + op.e11;
out.e12 = this.e12 + op.e12;
out.e13 = this.e13 + op.e13;
out.e21 = this.e21 + op.e21;
out.e22 = this.e22 + op.e22;
out.e23 = this.e23 + op.e23;
out.e31 = this.e31 + op.e31;
out.e32 = this.e32 + op.e32;
out.e33 = this.e33 + op.e33;
return out;
}
/** Matrix mixing.
*
* @param op another svg matrix
* @parma contribOp contribution of the other matrix (0 <= contribOp <= 1)
* @return (1 - contribOp) * this + contribOp * op
*/
matrixSVG.prototype.mix = function(op, contribOp)
{
contribThis = 1.0 - contribOp;
out = new matrixSVG();
out.e11 = contribThis * this.e11 + contribOp * op.e11;
out.e12 = contribThis * this.e12 + contribOp * op.e12;
out.e13 = contribThis * this.e13 + contribOp * op.e13;
out.e21 = contribThis * this.e21 + contribOp * op.e21;
out.e22 = contribThis * this.e22 + contribOp * op.e22;
out.e23 = contribThis * this.e23 + contribOp * op.e23;
out.e31 = contribThis * this.e31 + contribOp * op.e31;
out.e32 = contribThis * this.e32 + contribOp * op.e32;
out.e33 = contribThis * this.e33 + contribOp * op.e33;
return out;
}
/** Trimming function for strings.
*/
String.prototype.trim = function()
{
return this.replace(/^\s+|\s+$/g, '');
}
