blinker / firefox.plugin / data / scripts / gazePosition.js @ 76dd22bd
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| 1 | 76dd22bd | KevinTaron | /*
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| 2 | * Copyright 2015 Thies Pfeiffer and Dimitri Heil and Kevin Taron
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| 3 | * Blinker is distributed under the terms of the GNU General Public License
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| 4 | *
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| 5 | * This file is part of Blinker.
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| 6 | *
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| 7 | * Blinker is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * Blinker is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with Blinker. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | |||
| 21 | var gazeScrollAtBorders;
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| 22 | |||
| 23 | /*
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| 24 | * Check for elements at position x,y that have gazeEvents bound to them and trigger those events
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| 25 | */
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| 26 | function gazePosition(x, y) { |
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| 27 | //console.log("functions.js :: "+"gazePosition()" +", x: " + x +", y: "+y );
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| 28 | |||
| 29 | //save current position into gazeInformation Object
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| 30 | gazeInformation.x = x; |
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| 31 | gazeInformation.y = y; |
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| 32 | |||
| 33 | |||
| 34 | |||
| 35 | |||
| 36 | //check if gestureMode has been initiated and needs to be shown
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| 37 | if (gestureMode) {
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| 38 | if (gestureString.length == 4) { |
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| 39 | $.notify("GestureString: " + gestureString, "success"); |
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| 40 | gestureMode = false;
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| 41 | edgeFunctions.clearDivs(); |
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| 42 | |||
| 43 | var myGestures = blickBrowserSettings.gestures.split(";"); |
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| 44 | if (myGestures.length > 0) { |
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| 45 | for (var gg = 0; gg < myGestures.length; gg++) { |
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| 46 | var splittedGesture = myGestures[gg].split("|"); |
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| 47 | console.log(splittedGesture[1]);
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| 48 | if (splittedGesture[0] == gestureString) { |
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| 49 | console.log("Calling Function: window."+splittedGesture[1]); |
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| 50 | window[splittedGesture[1]]();
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| 51 | } |
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| 52 | } |
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| 53 | } |
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| 54 | } |
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| 55 | |||
| 56 | if (Date.now() - gestureTimer >= 5000) { |
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| 57 | $.notify("gestureTimer ran out.", "success"); |
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| 58 | gestureMode = false;
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| 59 | edgeFunctions.clearDivs(); |
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| 60 | } |
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| 61 | |||
| 62 | } |
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| 63 | |||
| 64 | |||
| 65 | //check if autoReadingMode is enabled and run the routine if needed
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| 66 | if (blickBrowserSettings.autoReadingMode){
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| 67 | clearTimeout(checkForLinksInterval); |
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| 68 | if (Math.abs(gazeInformation.gazeMoveStartPoint.x - gazeInformation.x) > blickBrowserSettings.autoReadingModeDistance ||
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| 69 | Math.abs(gazeInformation.gazeMoveStartPoint.y - gazeInformation.y) > blickBrowserSettings.autoReadingModeDistance){
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| 70 | |||
| 71 | gazeInformation.gazeMoveStartTime = Date.now(); |
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| 72 | gazeInformation.gazeMoveStartPoint = {"x": gazeInformation.x,"y":gazeInformation.y};
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| 73 | |||
| 74 | } |
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| 75 | |||
| 76 | if (Date.now() - gazeInformation.gazeMoveStartTime >= blickBrowserSettings.autoReadingModeThreshold){
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| 77 | gazeInformation.gazeMoveStartTime = Date.now(); |
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| 78 | gazeInformation.gazeMoveStartPoint = {"x": gazeInformation.x,"y":gazeInformation.y};
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| 79 | gazeFunctions.checkForLinks(); |
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| 80 | |||
| 81 | } |
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| 82 | |||
| 83 | } |
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| 84 | |||
| 85 | // Compute gaze Correction
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| 86 | if (gazeCorrectionMode === true) { |
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| 87 | |||
| 88 | var gazeValues = {
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| 89 | timestamp: Date.now(),
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| 90 | gcPoint: gazeCorrectionPointNr,
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| 91 | x: gazeInformation.x,
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| 92 | y: gazeInformation.y
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| 93 | }; |
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| 94 | |||
| 95 | gazeCorrectionData.push(gazeValues); |
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| 96 | } |
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| 97 | |||
| 98 | //scroll if scrolling is enabled
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| 99 | if (gazeScrollAtBorders === true) { |
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| 100 | |||
| 101 | |||
| 102 | |||
| 103 | if (gazeInformation.y > (window.innerHeight + window.scrollY) - (window.innerHeight * (blickBrowserSettings.scrollThreshold/100) )) { |
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| 104 | |||
| 105 | window.scroll(window.scrollX, window.scrollY + blickBrowserSettings.scrollSpeed); |
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| 106 | |||
| 107 | } else if ((gazeInformation.y - window.scrollY) < (window.innerHeight * (blickBrowserSettings.scrollThreshold/100))) { |
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| 108 | |||
| 109 | window.scroll(window.scrollX, window.scrollY - blickBrowserSettings.scrollSpeed); |
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| 110 | |||
| 111 | } |
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| 112 | |||
| 113 | if ((gazeInformation.x - window.scrollX) < (window.innerWidth * (blickBrowserSettings.scrollThreshold/100))) { |
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| 114 | window.scroll(window.scrollX - blickBrowserSettings.scrollSpeed, window.scrollY); |
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| 115 | } else if (gazeInformation.x > (window.innerWidth + window.scrollX) - (window.innerWidth * (blickBrowserSettings.scrollThreshold/100))) { |
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| 116 | window.scroll(window.scrollX + blickBrowserSettings.scrollSpeed, window.scrollY); |
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| 117 | } |
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| 118 | |||
| 119 | |||
| 120 | } |
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| 121 | |||
| 122 | //position and show crosshair if enabled
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| 123 | if (blickBrowserSettings.gazeCrosshair === true) { |
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| 124 | |||
| 125 | $("#crosshairTop").css("left", (gazeInformation.x) + "px"); |
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| 126 | $("#crosshairTop").css("top", (gazeInformation.y - 16) + "px"); |
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| 127 | |||
| 128 | $("#crosshairBottom").css("left", (gazeInformation.x) + "px"); |
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| 129 | $("#crosshairBottom").css("top", (gazeInformation.y + 1) + "px"); |
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| 130 | |||
| 131 | |||
| 132 | $("#crosshairLeft").css("left", (gazeInformation.x - 16) + "px"); |
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| 133 | $("#crosshairLeft").css("top", (gazeInformation.y) + "px"); |
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| 134 | |||
| 135 | $("#crosshairRight").css("left", (gazeInformation.x + 1) + "px"); |
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| 136 | $("#crosshairRight").css("top", (gazeInformation.y) + "px"); |
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| 137 | |||
| 138 | $("#crosshairTop").css("display", "block"); |
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| 139 | $("#crosshairBottom").css("display", "block"); |
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| 140 | $("#crosshairLeft").css("display", "block"); |
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| 141 | $("#crosshairRight").css("display", "block"); |
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| 142 | //$("#cross").css("display", "block");
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| 143 | } else {
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| 144 | $("#crosshairTop").css("display", "none"); |
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| 145 | $("#crosshairBottom").css("display", "none"); |
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| 146 | $("#crosshairLeft").css("display", "none"); |
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| 147 | $("#crosshairRight").css("display", "none"); |
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| 148 | |||
| 149 | //$("#cross").css("display", "none");
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| 150 | } |
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| 151 | |||
| 152 | |||
| 153 | //move findLinkArea with gazePosition
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| 154 | $("#findLinkArea").css("display", "none"); |
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| 155 | $("#findLinkArea").css("left", (gazeInformation.x - $(findLinkArea).width() / 2) + "px"); |
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| 156 | $("#findLinkArea").css("top", (gazeInformation.y - $(findLinkArea).height() / 2) + "px"); |
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| 157 | |||
| 158 | |||
| 159 | |||
| 160 | |||
| 161 | |||
| 162 | |||
| 163 | /*
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| 164 | * Check current gazePosition for edgeGazeGestures
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| 165 | */
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| 166 | |||
| 167 | if ( (x < ((-1 * blickBrowserSettings.leftEdgeTolerance) + window.scrollX) ) && (y > ( (window.innerHeight*0.1) + window.scrollY ) ) && (y < ((window.innerHeight*0.9)) + window.scrollY) ) { |
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| 168 | //console.log("leftEdge!!!"+blickBrowserSettings['leftEdge']);
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| 169 | edgeFunctions[blickBrowserSettings.leftEdge](); |
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| 170 | } |
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| 171 | if ( (y < ((-1 * blickBrowserSettings.topEdgeTolerance) + window.scrollY) ) && (x > ((window.innerWidth*0.1) + window.scrollX ) && (x < ((window.innerWidth*0.9)+ window.scrollX ) ) ) ) { |
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| 172 | //console.log("topEdge!!!");
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| 173 | edgeFunctions[blickBrowserSettings.topEdge](); |
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| 174 | } |
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| 175 | if ((x > (window.innerWidth + window.scrollX + blickBrowserSettings.rightEdgeTolerance)) && (y > ( (window.innerHeight*0.1) + window.scrollY ) ) && (y < ((window.innerHeight*0.9)) + window.scrollY) ) { |
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| 176 | //console.log("rightEdge!!!");
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| 177 | edgeFunctions[blickBrowserSettings.rightEdge](); |
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| 178 | } |
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| 179 | |||
| 180 | |||
| 181 | |||
| 182 | |||
| 183 | //check if privacy mode is enabled and move the holeImage according to gazeposition
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| 184 | if (blickBrowserSettings.privacyMode === true) { |
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| 185 | //console.log("privacy mode is true!!!!!");
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| 186 | $("#holeImage").css("display", "block"); |
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| 187 | |||
| 188 | $("#holeImage").css('background-position', (gazeInformation.x - window.scrollX - 2500) + 'px ' + (gazeInformation.y - window.scrollY - 2500) + 'px'); |
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| 189 | } else {
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| 190 | $("#holeImage").css("display", "none"); |
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| 191 | } |
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| 192 | |||
| 193 | |||
| 194 | |||
| 195 | //Get elementAt gazePosition
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| 196 | var elementBelow = document.elementFromPoint(gazeInformation.x - scrollX, gazeInformation.y - scrollY);
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| 197 | |||
| 198 | |||
| 199 | // React on GAZE Interactions
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| 200 | if($(elementBelow).data('gaze')) { |
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| 201 | enterLeaveOver(elementBelow); |
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| 202 | initGazeType(elementBelow); |
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| 203 | } |
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| 204 | |||
| 205 | //document.getElementById("offsetLabel").innerHTML = "Offset: " + "x: " + (browserDecorationThickness + window.scrollX + window.screenX) + "px" + "|y: " + (browserTopBarsHeight + window.scrollY + window.screenY) + "px";
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| 206 | |||
| 207 | |||
| 208 | |||
| 209 | //append debug information to mouse if enabled
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| 210 | if (blickBrowserSettings.debugInformation === true) { |
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| 211 | $("#status").css("display", "block"); |
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| 212 | } else {
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| 213 | $("#status").css("display", "none"); |
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| 214 | } |
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| 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"; |
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| 217 | if (elementBelow !== null) { |
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| 218 | document.getElementById("status").innerHTML += ("<br />type:" + elementBelow.tagName); |
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| 219 | } |
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| 220 | |||
| 221 | |||
| 222 | |||
| 223 | //Fixated DISPATCHER
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| 224 | if (elementBelow !== null && false) { |
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| 225 | |||
| 226 | var dataGazeObject = $(elementBelow).data('gaze'); |
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| 227 | if (dataGazeObject !== undefined) { |
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| 228 | //does element below have an 'isFixated' event?
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| 229 | if ($(dataGazeObject)[0].hasOwnProperty("isFixated")) { |
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| 230 | |||
| 231 | //if user looks at that element more than 10% of fixationThreshold-time, then show the progressCircle
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| 232 | if ((Date.now() - gazeInformation.currentElementFixatedAt) >= blickBrowserSettings.fixationThreshold * 0.1) { |
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| 233 | |||
| 234 | |||
| 235 | $('.dial').val(Date.now() - gazeInformation.currentElementFixatedAt).trigger('change'); |
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| 236 | $("#gazeProgress").css("display", "block"); |
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| 237 | |||
| 238 | |||
| 239 | |||
| 240 | if (distanceToGaze($("#gazeProgress")) < 10) { |
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| 241 | $("#gazeProgress").css("left", ($("#gazeProgress").offset().left + 10)); |
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| 242 | } |
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| 243 | |||
| 244 | |||
| 245 | } |
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| 246 | |||
| 247 | |||
| 248 | //if user looks at that element longer that fixationThreshold-time, trigger isFixated event of that element
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| 249 | if ((Date.now() - gazeInformation.currentElementFixatedAt) >= blickBrowserSettings.fixationThreshold) {
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| 250 | console.log("fixationTime: "+(Date.now() - gazeInformation.currentElementFixatedAt));
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| 251 | gazeInformation.currentElementFixatedAt = Date.now(); |
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| 252 | gazeInformation.fixatedElement = elementBelow; |
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| 253 | gazeInformation.fixatedElement.dispatchEvent(isFixated); |
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| 254 | } |
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| 255 | |||
| 256 | } else {
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| 257 | gazeInformation.currentElementFixatedAt = Date.now(); |
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| 258 | $("#gazeProgress").css("display", "none"); |
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| 259 | } |
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| 260 | } else {
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| 261 | gazeInformation.currentElementFixatedAt = Date.now(); |
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| 262 | $("#gazeProgress").css("display", "none"); |
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| 263 | |||
| 264 | |||
| 265 | } |
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| 266 | } |
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| 267 | |||
| 268 | |||
| 269 | |||
| 270 | //GAZE ENTER, GAZE LEAVE AND GAZE OVER DISPATCHER
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| 271 | if (elementBelow !== null && false) { |
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| 272 | |||
| 273 | //if current element has the gazeOver event bould to it, trigger it
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| 274 | var dataGazeObject = $(elementBelow).data('gaze'); |
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| 275 | if (dataGazeObject !== undefined) { |
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| 276 | if ($(dataGazeObject)[0].hasOwnProperty("gazeOver")) { |
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| 277 | $(gazeInformation.elementBelow).trigger("gazeOver"); |
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| 278 | } |
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| 279 | } |
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| 280 | |||
| 281 | |||
| 282 | //if its a new element below gaze position
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| 283 | if (gazeInformation.lastElementBelow != elementBelow) {
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| 284 | |||
| 285 | //if it's a new element - reset the fixated-timer
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| 286 | gazeInformation.currentElementFixatedAt = Date.now(); |
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| 287 | $('#gazeProgress').css("left", ($(elementBelow).offset().left + $(elementBelow).width() + 10)); |
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| 288 | $('#gazeProgress').css("top", ($(elementBelow).offset().top)); |
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| 289 | gazeInformation.fixationPositionAtStart = {
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| 290 | "x": gazeInformation.x,
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| 291 | "y": gazeInformation.y
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| 292 | }; |
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| 293 | |||
| 294 | //if (gazeInformation.lastElementBelow != gazeInformation.elementBelow){
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| 295 | |||
| 296 | //if last element has gazeLeave event bound to it, trigger it
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| 297 | var dataGazeObject = $(gazeInformation.lastElementBelow).data('gaze'); |
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| 298 | if (dataGazeObject !== undefined) { |
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| 299 | if ($(dataGazeObject)[0].hasOwnProperty("gazeLeave")) { |
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| 300 | $(gazeInformation.lastElementBelow).trigger("gazeLeave"); |
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| 301 | } |
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| 302 | } |
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| 303 | //$(gazeInformation.lastElementBelow).trigger("gazeLeave");
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| 304 | |||
| 305 | //}
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| 306 | //save the element in the JSON object
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| 307 | gazeInformation.lastElementBelow = gazeInformation.elementBelow; |
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| 308 | |||
| 309 | //if the element was not null - dispatch event
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| 310 | if (gazeInformation.lastElementBelow !== null) { |
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| 311 | |||
| 312 | |||
| 313 | //unfade last gazed element
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| 314 | var dataGazeObject = $(gazeInformation.lastElementBelow).data('gaze'); |
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| 315 | if (dataGazeObject !== undefined) { |
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| 316 | $(gazeInformation.lastElementBelow).stop();
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| 317 | $(gazeInformation.lastElementBelow).fadeTo("fast", 1); |
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| 318 | } |
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| 319 | |||
| 320 | gazeInformation.currentElementFixatedAt = Date.now(); |
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| 321 | gazeLeaveFunc(gazeInformation.lastElementBelow); |
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| 322 | |||
| 323 | } |
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| 324 | |||
| 325 | //save current element to gazeInformation
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| 326 | gazeInformation.elementBelow = elementBelow; |
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| 327 | |||
| 328 | |||
| 329 | //if last element has gazeEnter event bound to it, trigger it
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| 330 | var dataGazeObject = $(elementBelow).data('gaze'); |
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| 331 | if (dataGazeObject !== undefined) { |
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| 332 | if ($(dataGazeObject)[0].hasOwnProperty("gazeEnter")) { |
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| 333 | $(gazeInformation.elementBelow).trigger("gazeEnter"); |
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| 334 | gazeInformation.currentElementFixatedAt = Date.now(); |
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| 335 | } |
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| 336 | } |
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| 337 | |||
| 338 | |||
| 339 | //if explicitMode is enabled, put the currently gazed elements name and url into the gazeLinks Array
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| 340 | if (blickBrowserSettings.explicitMode === true) { |
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| 341 | if (!wheelSelectorShowing) {
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| 342 | if (!controlBarShowing) {
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| 343 | if (blickBrowserSettings.blickBrowserMode != 'reading') { |
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| 344 | if ($(gazeInformation.elementBelow).attr('href') !== undefined) { |
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| 345 | gazeInformation.gazeLinks = []; |
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| 346 | //console.log("NumOfGazeLinks: " + gazeInformation.gazeLinks.length);
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| 347 | if (gazeInformation.gazeLinks.length < 1) { |
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| 348 | gazeInformation.gazeLinks.push({
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| 349 | "object": $(gazeInformation.elementBelow), |
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| 350 | "index": 0, |
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| 351 | "name": $(gazeInformation.elementBelow).text(), |
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| 352 | "url": $(gazeInformation.elementBelow).attr('href') |
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| 353 | }); |
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| 354 | |||
| 355 | appendGazeLinks(); |
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| 356 | } |
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| 357 | } |
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| 358 | } |
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| 359 | } |
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| 360 | } |
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| 361 | } |
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| 362 | gazeInformation.currentElementFixatedAt = Date.now(); |
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| 363 | gazeEnterFunc(gazeInformation.elementBelow); |
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| 364 | |||
| 365 | |||
| 366 | //fade gazed elements
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| 367 | var dataGazeObject = $(gazeInformation.elementBelow).data('gaze'); |
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| 368 | if (dataGazeObject !== undefined) { |
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| 369 | |||
| 370 | $(gazeInformation.elementBelow).stop();
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| 371 | $(gazeInformation.elementBelow).fadeTo('fast', 0.3); |
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| 372 | |||
| 373 | } |
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| 374 | |||
| 375 | } |
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| 376 | } |
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| 377 | |||
| 378 | } |
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| 379 | |||
| 380 | |||
| 381 | /*
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| 382 | * gazePosition adjusting before working with the gazePosition
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| 383 | */
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| 384 | function calcGazePosition(message) { |
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| 385 | //console.log(window.mozInnerScreenY);
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| 386 | //console.log("functions.js :: "+"calcGazePosition()" +", message: "+message );
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| 387 | |||
| 388 | |||
| 389 | //stop asyncronous checking for links if readingMode is active
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| 390 | if (blickBrowserSettings.blickBrowserMode == "reading") { |
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| 391 | clearTimeout(checkForLinksInterval); |
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| 392 | } |
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| 393 | |||
| 394 | |||
| 395 | eyeTrackingData = JSON.parse(message); |
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| 396 | var newX, newY;
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| 397 | |||
| 398 | |||
| 399 | |||
| 400 | raw = eyeTrackingData; |
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| 401 | if (raw.x == "0.0" && raw.y == "0.0") { |
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| 402 | self.port.emit("setIconRed", "noop"); |
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| 403 | } else {
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| 404 | self.port.emit("setIconGreen", "noop"); |
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| 405 | } |
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| 406 | |||
| 407 | //remove current screen position from gazePosition
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| 408 | //add the current scrolling position from gazePosition
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| 409 | //add the manual offset to the gazePosition
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| 410 | raw.x = (raw.x / blickBrowserSettings.scaling) + window.scrollX - window.mozInnerScreenX + blickBrowserSettings.gazeOffsetX; |
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| 411 | raw.y = (raw.y / blickBrowserSettings.scaling) + window.scrollY - window.mozInnerScreenY + blickBrowserSettings.gazeOffsetY; |
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| 412 | |||
| 413 | |||
| 414 | //safe previous
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| 415 | gazeInformation.previousX = gazeInformation.x; |
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| 416 | gazeInformation.previousY = gazeInformation.y; |
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| 417 | |||
| 418 | |||
| 419 | |||
| 420 | newX = raw.x; |
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| 421 | newY = raw.y; |
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| 422 | |||
| 423 | //do gazeSmoothing if needed
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| 424 | if (blickBrowserSettings.gazeSmoothing === true) { |
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| 425 | |||
| 426 | |||
| 427 | //empty gazeHistory if gaze just performed a saccade
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| 428 | //append the gazePosition to gazeHistory otherwise
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| 429 | if (Math.abs(gazeInformation.previousX - newX) > blickBrowserSettings.saccadeLength) {
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| 430 | gazeCollection = []; |
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| 431 | |||
| 432 | } else if (Math.abs(gazeInformation.previousY - newY) > blickBrowserSettings.saccadeLength) { |
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| 433 | gazeCollection = []; |
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| 434 | } else {
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| 435 | |||
| 436 | //if gazeHistory is not full, append current gazePosition
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| 437 | if (gazeCollection.length < blickBrowserSettings.gazeSmoothingHistory) {
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| 438 | gazeCollection.push({
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| 439 | "x": newX,
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| 440 | "y": newY
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| 441 | }); |
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| 442 | //otherwise remove oldest element and append newest
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| 443 | } else {
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| 444 | gazeCollection.splice(0, 1); |
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| 445 | gazeCollection.push({
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| 446 | "x": newX,
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| 447 | "y": newY
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| 448 | }); |
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| 449 | } |
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| 450 | |||
| 451 | var sumX = 0; |
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| 452 | var sumY = 0; |
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| 453 | //calculate the average gazePosition from all positions in gazeHistory
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| 454 | for (var g = 0; g < gazeCollection.length; g++) { |
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| 455 | sumX += gazeCollection[g].x; |
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| 456 | sumY += gazeCollection[g].y; |
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| 457 | } |
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| 458 | //set newly calculated gazePosition
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| 459 | newX = sumX / gazeCollection.length; |
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| 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 | } |