blinker / firefox.plugin / data / scripts / gazePosition.js @ master
History | View | Annotate | Download (19.294 KB)
| 1 |
/*
|
|---|---|
| 2 |
* Copyright 2015 Thies Pfeiffer and Dimitri Heil and Kevin Taron
|
| 3 |
* Blinker is distributed under the terms of the GNU General Public License
|
| 4 |
*
|
| 5 |
* This file is part of Blinker.
|
| 6 |
*
|
| 7 |
* Blinker is free software: you can redistribute it and/or modify
|
| 8 |
* it under the terms of the GNU General Public License as published by
|
| 9 |
* the Free Software Foundation, either version 3 of the License, or
|
| 10 |
* (at your option) any later version.
|
| 11 |
*
|
| 12 |
* Blinker is distributed in the hope that it will be useful,
|
| 13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 15 |
* GNU General Public License for more details.
|
| 16 |
*
|
| 17 |
* You should have received a copy of the GNU General Public License
|
| 18 |
* along with Blinker. If not, see <http://www.gnu.org/licenses/>.
|
| 19 |
*/
|
| 20 |
|
| 21 |
var gazeScrollAtBorders;
|
| 22 |
|
| 23 |
/*
|
| 24 |
* Check for elements at position x,y that have gazeEvents bound to them and trigger those events
|
| 25 |
*/
|
| 26 |
function gazePosition(x, y) { |
| 27 |
//console.log("functions.js :: "+"gazePosition()" +", x: " + x +", y: "+y );
|
| 28 |
|
| 29 |
//save current position into gazeInformation Object
|
| 30 |
gazeInformation.x = x; |
| 31 |
gazeInformation.y = y; |
| 32 |
|
| 33 |
|
| 34 |
|
| 35 |
|
| 36 |
//check if gestureMode has been initiated and needs to be shown
|
| 37 |
if (gestureMode) {
|
| 38 |
if (gestureString.length == 4) { |
| 39 |
$.notify("GestureString: " + gestureString, "success"); |
| 40 |
gestureMode = false;
|
| 41 |
edgeFunctions.clearDivs(); |
| 42 |
|
| 43 |
var myGestures = blickBrowserSettings.gestures.split(";"); |
| 44 |
if (myGestures.length > 0) { |
| 45 |
for (var gg = 0; gg < myGestures.length; gg++) { |
| 46 |
var splittedGesture = myGestures[gg].split("|"); |
| 47 |
console.log(splittedGesture[1]);
|
| 48 |
if (splittedGesture[0] == gestureString) { |
| 49 |
console.log("Calling Function: window."+splittedGesture[1]); |
| 50 |
window[splittedGesture[1]]();
|
| 51 |
} |
| 52 |
} |
| 53 |
} |
| 54 |
} |
| 55 |
|
| 56 |
if (Date.now() - gestureTimer >= 5000) { |
| 57 |
$.notify("gestureTimer ran out.", "success"); |
| 58 |
gestureMode = false;
|
| 59 |
edgeFunctions.clearDivs(); |
| 60 |
} |
| 61 |
|
| 62 |
} |
| 63 |
|
| 64 |
|
| 65 |
//check if autoReadingMode is enabled and run the routine if needed
|
| 66 |
if (blickBrowserSettings.autoReadingMode){
|
| 67 |
clearTimeout(checkForLinksInterval); |
| 68 |
if (Math.abs(gazeInformation.gazeMoveStartPoint.x - gazeInformation.x) > blickBrowserSettings.autoReadingModeDistance ||
|
| 69 |
Math.abs(gazeInformation.gazeMoveStartPoint.y - gazeInformation.y) > blickBrowserSettings.autoReadingModeDistance){
|
| 70 |
|
| 71 |
gazeInformation.gazeMoveStartTime = Date.now(); |
| 72 |
gazeInformation.gazeMoveStartPoint = {"x": gazeInformation.x,"y":gazeInformation.y};
|
| 73 |
|
| 74 |
} |
| 75 |
|
| 76 |
if (Date.now() - gazeInformation.gazeMoveStartTime >= blickBrowserSettings.autoReadingModeThreshold){
|
| 77 |
gazeInformation.gazeMoveStartTime = Date.now(); |
| 78 |
gazeInformation.gazeMoveStartPoint = {"x": gazeInformation.x,"y":gazeInformation.y};
|
| 79 |
gazeFunctions.checkForLinks(); |
| 80 |
|
| 81 |
} |
| 82 |
|
| 83 |
} |
| 84 |
|
| 85 |
// Compute gaze Correction
|
| 86 |
if (gazeCorrectionMode === true) { |
| 87 |
|
| 88 |
var gazeValues = {
|
| 89 |
timestamp: Date.now(),
|
| 90 |
gcPoint: gazeCorrectionPointNr,
|
| 91 |
x: gazeInformation.x,
|
| 92 |
y: gazeInformation.y
|
| 93 |
}; |
| 94 |
|
| 95 |
gazeCorrectionData.push(gazeValues); |
| 96 |
} |
| 97 |
|
| 98 |
//scroll if scrolling is enabled
|
| 99 |
if (gazeScrollAtBorders === true) { |
| 100 |
|
| 101 |
|
| 102 |
|
| 103 |
if (gazeInformation.y > (window.innerHeight + window.scrollY) - (window.innerHeight * (blickBrowserSettings.scrollThreshold/100) )) { |
| 104 |
|
| 105 |
window.scroll(window.scrollX, window.scrollY + blickBrowserSettings.scrollSpeed); |
| 106 |
|
| 107 |
} else if ((gazeInformation.y - window.scrollY) < (window.innerHeight * (blickBrowserSettings.scrollThreshold/100))) { |
| 108 |
|
| 109 |
window.scroll(window.scrollX, window.scrollY - blickBrowserSettings.scrollSpeed); |
| 110 |
|
| 111 |
} |
| 112 |
|
| 113 |
if ((gazeInformation.x - window.scrollX) < (window.innerWidth * (blickBrowserSettings.scrollThreshold/100))) { |
| 114 |
window.scroll(window.scrollX - blickBrowserSettings.scrollSpeed, window.scrollY); |
| 115 |
} else if (gazeInformation.x > (window.innerWidth + window.scrollX) - (window.innerWidth * (blickBrowserSettings.scrollThreshold/100))) { |
| 116 |
window.scroll(window.scrollX + blickBrowserSettings.scrollSpeed, window.scrollY); |
| 117 |
} |
| 118 |
|
| 119 |
|
| 120 |
} |
| 121 |
|
| 122 |
//position and show crosshair if enabled
|
| 123 |
if (blickBrowserSettings.gazeCrosshair === true) { |
| 124 |
|
| 125 |
$("#crosshairTop").css("left", (gazeInformation.x) + "px"); |
| 126 |
$("#crosshairTop").css("top", (gazeInformation.y - 16) + "px"); |
| 127 |
|
| 128 |
$("#crosshairBottom").css("left", (gazeInformation.x) + "px"); |
| 129 |
$("#crosshairBottom").css("top", (gazeInformation.y + 1) + "px"); |
| 130 |
|
| 131 |
|
| 132 |
$("#crosshairLeft").css("left", (gazeInformation.x - 16) + "px"); |
| 133 |
$("#crosshairLeft").css("top", (gazeInformation.y) + "px"); |
| 134 |
|
| 135 |
$("#crosshairRight").css("left", (gazeInformation.x + 1) + "px"); |
| 136 |
$("#crosshairRight").css("top", (gazeInformation.y) + "px"); |
| 137 |
|
| 138 |
$("#crosshairTop").css("display", "block"); |
| 139 |
$("#crosshairBottom").css("display", "block"); |
| 140 |
$("#crosshairLeft").css("display", "block"); |
| 141 |
$("#crosshairRight").css("display", "block"); |
| 142 |
//$("#cross").css("display", "block");
|
| 143 |
} else {
|
| 144 |
$("#crosshairTop").css("display", "none"); |
| 145 |
$("#crosshairBottom").css("display", "none"); |
| 146 |
$("#crosshairLeft").css("display", "none"); |
| 147 |
$("#crosshairRight").css("display", "none"); |
| 148 |
|
| 149 |
//$("#cross").css("display", "none");
|
| 150 |
} |
| 151 |
|
| 152 |
|
| 153 |
//move findLinkArea with gazePosition
|
| 154 |
$("#findLinkArea").css("display", "none"); |
| 155 |
$("#findLinkArea").css("left", (gazeInformation.x - $(findLinkArea).width() / 2) + "px"); |
| 156 |
$("#findLinkArea").css("top", (gazeInformation.y - $(findLinkArea).height() / 2) + "px"); |
| 157 |
|
| 158 |
|
| 159 |
|
| 160 |
|
| 161 |
|
| 162 |
|
| 163 |
/*
|
| 164 |
* Check current gazePosition for edgeGazeGestures
|
| 165 |
*/
|
| 166 |
|
| 167 |
if ( (x < ((-1 * blickBrowserSettings.leftEdgeTolerance) + window.scrollX) ) && (y > ( (window.innerHeight*0.1) + window.scrollY ) ) && (y < ((window.innerHeight*0.9)) + window.scrollY) ) { |
| 168 |
//console.log("leftEdge!!!"+blickBrowserSettings['leftEdge']);
|
| 169 |
edgeFunctions[blickBrowserSettings.leftEdge](); |
| 170 |
} |
| 171 |
if ( (y < ((-1 * blickBrowserSettings.topEdgeTolerance) + window.scrollY) ) && (x > ((window.innerWidth*0.1) + window.scrollX ) && (x < ((window.innerWidth*0.9)+ window.scrollX ) ) ) ) { |
| 172 |
//console.log("topEdge!!!");
|
| 173 |
edgeFunctions[blickBrowserSettings.topEdge](); |
| 174 |
} |
| 175 |
if ((x > (window.innerWidth + window.scrollX + blickBrowserSettings.rightEdgeTolerance)) && (y > ( (window.innerHeight*0.1) + window.scrollY ) ) && (y < ((window.innerHeight*0.9)) + window.scrollY) ) { |
| 176 |
//console.log("rightEdge!!!");
|
| 177 |
edgeFunctions[blickBrowserSettings.rightEdge](); |
| 178 |
} |
| 179 |
|
| 180 |
|
| 181 |
|
| 182 |
|
| 183 |
//check if privacy mode is enabled and move the holeImage according to gazeposition
|
| 184 |
if (blickBrowserSettings.privacyMode === true) { |
| 185 |
//console.log("privacy mode is true!!!!!");
|
| 186 |
$("#holeImage").css("display", "block"); |
| 187 |
|
| 188 |
$("#holeImage").css('background-position', (gazeInformation.x - window.scrollX - 2500) + 'px ' + (gazeInformation.y - window.scrollY - 2500) + 'px'); |
| 189 |
} else {
|
| 190 |
$("#holeImage").css("display", "none"); |
| 191 |
} |
| 192 |
|
| 193 |
|
| 194 |
|
| 195 |
//Get elementAt gazePosition
|
| 196 |
var elementBelow = document.elementFromPoint(gazeInformation.x - scrollX, gazeInformation.y - scrollY);
|
| 197 |
|
| 198 |
|
| 199 |
// React on GAZE Interactions
|
| 200 |
if($(elementBelow).data('gaze')) { |
| 201 |
enterLeaveOver(elementBelow); |
| 202 |
initGazeType(elementBelow); |
| 203 |
} |
| 204 |
|
| 205 |
//document.getElementById("offsetLabel").innerHTML = "Offset: " + "x: " + (browserDecorationThickness + window.scrollX + window.screenX) + "px" + "|y: " + (browserTopBarsHeight + window.scrollY + window.screenY) + "px";
|
| 206 |
|
| 207 |
|
| 208 |
|
| 209 |
//append debug information to mouse if enabled
|
| 210 |
if (blickBrowserSettings.debugInformation === true) { |
| 211 |
$("#status").css("display", "block"); |
| 212 |
} else {
|
| 213 |
$("#status").css("display", "none"); |
| 214 |
} |
| 215 |
|
| 216 |
document.getElementById("status").innerHTML = "X: " + gazeInformation.x + "<br /> Y: " + gazeInformation.y + "<br /> fix: " + gazeInformation.isFixation + "<br /> dur:" + (Date.now() - gazeInformation.currentElementFixatedAt) + "ms" + "<br /> winsize:" + window.innerWidth + "px x " + innerHeight + "px" + "<br /> xOffset:" + (window.mozInnerScreenX + window.scrollX) + "px" + "<br /> yOffset:" + (window.mozInnerScreenY + window.scrollY) + "px"; |
| 217 |
if (elementBelow !== null) { |
| 218 |
document.getElementById("status").innerHTML += ("<br />type:" + elementBelow.tagName); |
| 219 |
} |
| 220 |
|
| 221 |
|
| 222 |
|
| 223 |
//Fixated DISPATCHER
|
| 224 |
if (elementBelow !== null && false) { |
| 225 |
|
| 226 |
var dataGazeObject = $(elementBelow).data('gaze'); |
| 227 |
if (dataGazeObject !== undefined) { |
| 228 |
//does element below have an 'isFixated' event?
|
| 229 |
if ($(dataGazeObject)[0].hasOwnProperty("isFixated")) { |
| 230 |
|
| 231 |
//if user looks at that element more than 10% of fixationThreshold-time, then show the progressCircle
|
| 232 |
if ((Date.now() - gazeInformation.currentElementFixatedAt) >= blickBrowserSettings.fixationThreshold * 0.1) { |
| 233 |
|
| 234 |
|
| 235 |
$('.dial').val(Date.now() - gazeInformation.currentElementFixatedAt).trigger('change'); |
| 236 |
$("#gazeProgress").css("display", "block"); |
| 237 |
|
| 238 |
|
| 239 |
|
| 240 |
if (distanceToGaze($("#gazeProgress")) < 10) { |
| 241 |
$("#gazeProgress").css("left", ($("#gazeProgress").offset().left + 10)); |
| 242 |
} |
| 243 |
|
| 244 |
|
| 245 |
} |
| 246 |
|
| 247 |
|
| 248 |
//if user looks at that element longer that fixationThreshold-time, trigger isFixated event of that element
|
| 249 |
if ((Date.now() - gazeInformation.currentElementFixatedAt) >= blickBrowserSettings.fixationThreshold) {
|
| 250 |
console.log("fixationTime: "+(Date.now() - gazeInformation.currentElementFixatedAt));
|
| 251 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 252 |
gazeInformation.fixatedElement = elementBelow; |
| 253 |
gazeInformation.fixatedElement.dispatchEvent(isFixated); |
| 254 |
} |
| 255 |
|
| 256 |
} else {
|
| 257 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 258 |
$("#gazeProgress").css("display", "none"); |
| 259 |
} |
| 260 |
} else {
|
| 261 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 262 |
$("#gazeProgress").css("display", "none"); |
| 263 |
|
| 264 |
|
| 265 |
} |
| 266 |
} |
| 267 |
|
| 268 |
|
| 269 |
|
| 270 |
//GAZE ENTER, GAZE LEAVE AND GAZE OVER DISPATCHER
|
| 271 |
if (elementBelow !== null && false) { |
| 272 |
|
| 273 |
//if current element has the gazeOver event bould to it, trigger it
|
| 274 |
var dataGazeObject = $(elementBelow).data('gaze'); |
| 275 |
if (dataGazeObject !== undefined) { |
| 276 |
if ($(dataGazeObject)[0].hasOwnProperty("gazeOver")) { |
| 277 |
$(gazeInformation.elementBelow).trigger("gazeOver"); |
| 278 |
} |
| 279 |
} |
| 280 |
|
| 281 |
|
| 282 |
//if its a new element below gaze position
|
| 283 |
if (gazeInformation.lastElementBelow != elementBelow) {
|
| 284 |
|
| 285 |
//if it's a new element - reset the fixated-timer
|
| 286 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 287 |
$('#gazeProgress').css("left", ($(elementBelow).offset().left + $(elementBelow).width() + 10)); |
| 288 |
$('#gazeProgress').css("top", ($(elementBelow).offset().top)); |
| 289 |
gazeInformation.fixationPositionAtStart = {
|
| 290 |
"x": gazeInformation.x,
|
| 291 |
"y": gazeInformation.y
|
| 292 |
}; |
| 293 |
|
| 294 |
//if (gazeInformation.lastElementBelow != gazeInformation.elementBelow){
|
| 295 |
|
| 296 |
//if last element has gazeLeave event bound to it, trigger it
|
| 297 |
var dataGazeObject = $(gazeInformation.lastElementBelow).data('gaze'); |
| 298 |
if (dataGazeObject !== undefined) { |
| 299 |
if ($(dataGazeObject)[0].hasOwnProperty("gazeLeave")) { |
| 300 |
$(gazeInformation.lastElementBelow).trigger("gazeLeave"); |
| 301 |
} |
| 302 |
} |
| 303 |
//$(gazeInformation.lastElementBelow).trigger("gazeLeave");
|
| 304 |
|
| 305 |
//}
|
| 306 |
//save the element in the JSON object
|
| 307 |
gazeInformation.lastElementBelow = gazeInformation.elementBelow; |
| 308 |
|
| 309 |
//if the element was not null - dispatch event
|
| 310 |
if (gazeInformation.lastElementBelow !== null) { |
| 311 |
|
| 312 |
|
| 313 |
//unfade last gazed element
|
| 314 |
var dataGazeObject = $(gazeInformation.lastElementBelow).data('gaze'); |
| 315 |
if (dataGazeObject !== undefined) { |
| 316 |
$(gazeInformation.lastElementBelow).stop();
|
| 317 |
$(gazeInformation.lastElementBelow).fadeTo("fast", 1); |
| 318 |
} |
| 319 |
|
| 320 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 321 |
gazeLeaveFunc(gazeInformation.lastElementBelow); |
| 322 |
|
| 323 |
} |
| 324 |
|
| 325 |
//save current element to gazeInformation
|
| 326 |
gazeInformation.elementBelow = elementBelow; |
| 327 |
|
| 328 |
|
| 329 |
//if last element has gazeEnter event bound to it, trigger it
|
| 330 |
var dataGazeObject = $(elementBelow).data('gaze'); |
| 331 |
if (dataGazeObject !== undefined) { |
| 332 |
if ($(dataGazeObject)[0].hasOwnProperty("gazeEnter")) { |
| 333 |
$(gazeInformation.elementBelow).trigger("gazeEnter"); |
| 334 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 335 |
} |
| 336 |
} |
| 337 |
|
| 338 |
|
| 339 |
//if explicitMode is enabled, put the currently gazed elements name and url into the gazeLinks Array
|
| 340 |
if (blickBrowserSettings.explicitMode === true) { |
| 341 |
if (!wheelSelectorShowing) {
|
| 342 |
if (!controlBarShowing) {
|
| 343 |
if (blickBrowserSettings.blickBrowserMode != 'reading') { |
| 344 |
if ($(gazeInformation.elementBelow).attr('href') !== undefined) { |
| 345 |
gazeInformation.gazeLinks = []; |
| 346 |
//console.log("NumOfGazeLinks: " + gazeInformation.gazeLinks.length);
|
| 347 |
if (gazeInformation.gazeLinks.length < 1) { |
| 348 |
gazeInformation.gazeLinks.push({
|
| 349 |
"object": $(gazeInformation.elementBelow), |
| 350 |
"index": 0, |
| 351 |
"name": $(gazeInformation.elementBelow).text(), |
| 352 |
"url": $(gazeInformation.elementBelow).attr('href') |
| 353 |
}); |
| 354 |
|
| 355 |
appendGazeLinks(); |
| 356 |
} |
| 357 |
} |
| 358 |
} |
| 359 |
} |
| 360 |
} |
| 361 |
} |
| 362 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 363 |
gazeEnterFunc(gazeInformation.elementBelow); |
| 364 |
|
| 365 |
|
| 366 |
//fade gazed elements
|
| 367 |
var dataGazeObject = $(gazeInformation.elementBelow).data('gaze'); |
| 368 |
if (dataGazeObject !== undefined) { |
| 369 |
|
| 370 |
$(gazeInformation.elementBelow).stop();
|
| 371 |
$(gazeInformation.elementBelow).fadeTo('fast', 0.3); |
| 372 |
|
| 373 |
} |
| 374 |
|
| 375 |
} |
| 376 |
} |
| 377 |
|
| 378 |
} |
| 379 |
|
| 380 |
|
| 381 |
/*
|
| 382 |
* gazePosition adjusting before working with the gazePosition
|
| 383 |
*/
|
| 384 |
function calcGazePosition(message) { |
| 385 |
//console.log(window.mozInnerScreenY);
|
| 386 |
//console.log("functions.js :: "+"calcGazePosition()" +", message: "+message );
|
| 387 |
|
| 388 |
|
| 389 |
//stop asyncronous checking for links if readingMode is active
|
| 390 |
if (blickBrowserSettings.blickBrowserMode == "reading") { |
| 391 |
clearTimeout(checkForLinksInterval); |
| 392 |
} |
| 393 |
|
| 394 |
|
| 395 |
eyeTrackingData = JSON.parse(message); |
| 396 |
var newX, newY;
|
| 397 |
|
| 398 |
|
| 399 |
|
| 400 |
raw = eyeTrackingData; |
| 401 |
if (raw.x == "0.0" && raw.y == "0.0") { |
| 402 |
self.port.emit("setIconRed", "noop"); |
| 403 |
} else {
|
| 404 |
self.port.emit("setIconGreen", "noop"); |
| 405 |
} |
| 406 |
|
| 407 |
//remove current screen position from gazePosition
|
| 408 |
//add the current scrolling position from gazePosition
|
| 409 |
//add the manual offset to the gazePosition
|
| 410 |
raw.x = (raw.x / blickBrowserSettings.scaling) + window.scrollX - window.mozInnerScreenX + blickBrowserSettings.gazeOffsetX; |
| 411 |
raw.y = (raw.y / blickBrowserSettings.scaling) + window.scrollY - window.mozInnerScreenY + blickBrowserSettings.gazeOffsetY; |
| 412 |
|
| 413 |
|
| 414 |
//safe previous
|
| 415 |
gazeInformation.previousX = gazeInformation.x; |
| 416 |
gazeInformation.previousY = gazeInformation.y; |
| 417 |
|
| 418 |
|
| 419 |
|
| 420 |
newX = raw.x; |
| 421 |
newY = raw.y; |
| 422 |
|
| 423 |
//do gazeSmoothing if needed
|
| 424 |
if (blickBrowserSettings.gazeSmoothing === true) { |
| 425 |
|
| 426 |
|
| 427 |
//empty gazeHistory if gaze just performed a saccade
|
| 428 |
//append the gazePosition to gazeHistory otherwise
|
| 429 |
if (Math.abs(gazeInformation.previousX - newX) > blickBrowserSettings.saccadeLength) {
|
| 430 |
gazeCollection = []; |
| 431 |
|
| 432 |
} else if (Math.abs(gazeInformation.previousY - newY) > blickBrowserSettings.saccadeLength) { |
| 433 |
gazeCollection = []; |
| 434 |
} else {
|
| 435 |
|
| 436 |
//if gazeHistory is not full, append current gazePosition
|
| 437 |
if (gazeCollection.length < blickBrowserSettings.gazeSmoothingHistory) {
|
| 438 |
gazeCollection.push({
|
| 439 |
"x": newX,
|
| 440 |
"y": newY
|
| 441 |
}); |
| 442 |
//otherwise remove oldest element and append newest
|
| 443 |
} else {
|
| 444 |
gazeCollection.splice(0, 1); |
| 445 |
gazeCollection.push({
|
| 446 |
"x": newX,
|
| 447 |
"y": newY
|
| 448 |
}); |
| 449 |
} |
| 450 |
|
| 451 |
var sumX = 0; |
| 452 |
var sumY = 0; |
| 453 |
//calculate the average gazePosition from all positions in gazeHistory
|
| 454 |
for (var g = 0; g < gazeCollection.length; g++) { |
| 455 |
sumX += gazeCollection[g].x; |
| 456 |
sumY += gazeCollection[g].y; |
| 457 |
} |
| 458 |
//set newly calculated gazePosition
|
| 459 |
newX = sumX / gazeCollection.length; |
| 460 |
newY = sumY / gazeCollection.length; |
| 461 |
|
| 462 |
|
| 463 |
|
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
try{
|
| 468 |
//run check for gazeEvents and options on newly calculated gazePosition
|
| 469 |
gazePosition(newX, newY); |
| 470 |
} catch (exc){
|
| 471 |
console.log("ERROR MESSAGE: "+exc.message);
|
| 472 |
console.log("ERROR NAME: "+exc.name);
|
| 473 |
console.log("ERROR LINENUMBER: "+exc.lineNumber);
|
| 474 |
console.log("ERROR LINENUMBER: "+exc.columnNumber);
|
| 475 |
} |
| 476 |
} |
| 477 |
|
| 478 |
|
| 479 |
function isFix(elementBelow) { |
| 480 |
//if user looks at that element more than 10% of fixationThreshold-time, then show the progressCircle
|
| 481 |
if ((Date.now() - gazeInformation.currentElementFixatedAt) >= blickBrowserSettings.fixationThreshold * 0.1) { |
| 482 |
|
| 483 |
// console.log("10% of fixation");
|
| 484 |
$('.dial').val(Date.now() - gazeInformation.currentElementFixatedAt).trigger('change'); |
| 485 |
$("#gazeProgress").css("display", "block"); |
| 486 |
|
| 487 |
|
| 488 |
|
| 489 |
if (distanceToGaze($("#gazeProgress")) < 10) { |
| 490 |
$("#gazeProgress").css("left", ($("#gazeProgress").offset().left + 10)); |
| 491 |
} |
| 492 |
|
| 493 |
|
| 494 |
} |
| 495 |
|
| 496 |
|
| 497 |
//if user looks at that element longer that fixationThreshold-time, trigger isFixated event of that element
|
| 498 |
if ((Date.now() - gazeInformation.currentElementFixatedAt) >= blickBrowserSettings.fixationThreshold) {
|
| 499 |
console.log("fixation");
|
| 500 |
console.log("fixationTime: "+(Date.now() - gazeInformation.currentElementFixatedAt));
|
| 501 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 502 |
gazeInformation.fixatedElement = elementBelow; |
| 503 |
gazeInformation.fixatedElement.dispatchEvent(isFixated); |
| 504 |
$('.fixatedElement').removeClass('fixatedElement'); |
| 505 |
$(gazeInformation.fixatedElement).addClass('fixatedElement'); |
| 506 |
$(gazeInformation.fixatedElement).trigger("isFixated"); |
| 507 |
} |
| 508 |
} |
| 509 |
|
| 510 |
function isOver(elementBelow) { |
| 511 |
$(gazeInformation.elementBelow).trigger("gazeOver"); |
| 512 |
isFix(elementBelow); |
| 513 |
} |
| 514 |
|
| 515 |
function isLeave() { |
| 516 |
$(gazeInformation.lastElementBelow).trigger("gazeLeave"); |
| 517 |
|
| 518 |
//if the element was not null - dispatch event
|
| 519 |
if (gazeInformation.lastElementBelow !== null) { |
| 520 |
// console.log("leave element: " + gazeInformation.lastElementBelow);
|
| 521 |
//unfade last gazed element
|
| 522 |
var dataGazeObject = $(gazeInformation.lastElementBelow).data('gaze'); |
| 523 |
if (dataGazeObject !== undefined) { |
| 524 |
$(gazeInformation.lastElementBelow).stop();
|
| 525 |
$(gazeInformation.lastElementBelow).fadeTo("fast", 1); |
| 526 |
} |
| 527 |
|
| 528 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 529 |
gazeLeaveFunc(gazeInformation.lastElementBelow); |
| 530 |
|
| 531 |
} |
| 532 |
} |
| 533 |
|
| 534 |
function isEnter(elementBelow) { |
| 535 |
if($(elementBelow).data('gaze')) { |
| 536 |
//console.log("enter element: " + gazeInformation.lastElementBelow);
|
| 537 |
gazeInformation.elementBelow = elementBelow; |
| 538 |
$(gazeInformation.elementBelow).trigger("gazeEnter"); |
| 539 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 540 |
gazeEnterFunc(gazeInformation.elementBelow); |
| 541 |
isFix(elementBelow); |
| 542 |
} |
| 543 |
} |
| 544 |
|
| 545 |
|
| 546 |
function enterLeaveOver(elementBelow) { |
| 547 |
//GAZE ENTER, GAZE LEAVE AND GAZE OVER DISPATCHER
|
| 548 |
if (elementBelow !== null) { |
| 549 |
if($(elementBelow).data('gaze') !== undefined) { |
| 550 |
//trigger is over element
|
| 551 |
isOver(elementBelow); |
| 552 |
|
| 553 |
if(gazeInformation.lastElementBelow != elementBelow) {
|
| 554 |
//if it's a new element - reset the fixated-timer
|
| 555 |
gazeInformation.currentElementFixatedAt = Date.now(); |
| 556 |
$('#gazeProgress').css("left", ($(elementBelow).offset().left + $(elementBelow).width() + 10)); |
| 557 |
$('#gazeProgress').css("top", ($(elementBelow).offset().top)); |
| 558 |
gazeInformation.fixationPositionAtStart = {
|
| 559 |
"x": gazeInformation.x,
|
| 560 |
"y": gazeInformation.y
|
| 561 |
}; |
| 562 |
|
| 563 |
isLeave(); |
| 564 |
isEnter(elementBelow); |
| 565 |
gazeInformation.lastElementBelow = gazeInformation.elementBelow; |
| 566 |
} |
| 567 |
} |
| 568 |
|
| 569 |
} else {
|
| 570 |
isLeave(); |
| 571 |
gazeInformation.lastElementBelow = null;
|
| 572 |
} |
| 573 |
} |
| 574 |
|
| 575 |
function setScrollAtBorder(onScroll = blickBrowserSettings.scrollAtBorders) { |
| 576 |
gazeScrollAtBorders = onScroll; |
| 577 |
} |