VulpesOS/assets/webapps/wallpaper.gaiamobile.org/gaia_build_defer_share.js

;'use strict';var GestureDetector=(function(){function GD(e,options){this.element=e;this.options=options||{};this.options.panThreshold=this.options.panThreshold||GD.PAN_THRESHOLD;this.state=initialState;this.timers={};}
GD.prototype.startDetecting=function(){var self=this;eventtypes.forEach(function(t){self.element.addEventListener(t,self);});};GD.prototype.stopDetecting=function(){var self=this;eventtypes.forEach(function(t){self.element.removeEventListener(t,self);});};GD.prototype.handleEvent=function(e){var handler=this.state[e.type];if(!handler){return;}
if(e.changedTouches){for(var i=0;i<e.changedTouches.length;i++){handler(this,e,e.changedTouches[i]);handler=this.state[e.type];if(!handler){return;}}}
else{handler(this,e);}};GD.prototype.startTimer=function(type,time){this.clearTimer(type);var self=this;this.timers[type]=setTimeout(function(){self.timers[type]=null;var handler=self.state[type];if(handler){handler(self,type);}},time);};GD.prototype.clearTimer=function(type){if(this.timers[type]){clearTimeout(this.timers[type]);this.timers[type]=null;}};GD.prototype.switchTo=function(state,event,touch){this.state=state;if(state.init){state.init(this,event,touch);}};GD.prototype.emitEvent=function(type,detail){if(!this.target){console.error('Attempt to emit event with no target');return;}
var event=this.element.ownerDocument.createEvent('CustomEvent');event.initCustomEvent(type,true,true,detail);this.target.dispatchEvent(event);};GD.HOLD_INTERVAL=1000;GD.PAN_THRESHOLD=20;GD.DOUBLE_TAP_DISTANCE=50;GD.DOUBLE_TAP_TIME=500;GD.VELOCITY_SMOOTHING=0.5;GD.SCALE_THRESHOLD=20;GD.ROTATE_THRESHOLD=22.5;GD.THRESHOLD_SMOOTHING=0.9;var abs=Math.abs,floor=Math.floor,sqrt=Math.sqrt,atan2=Math.atan2;var PI=Math.PI;var eventtypes=['touchstart','touchmove','touchend'];function eventTime(e){var ts=e.timeStamp;if(ts>2*Date.now()){return Math.floor(ts/1000);}else{return ts;}}
function coordinates(e,t){return Object.freeze({screenX:t.screenX,screenY:t.screenY,clientX:t.clientX,clientY:t.clientY,timeStamp:eventTime(e)});}
function midpoints(e,t1,t2){return Object.freeze({screenX:floor((t1.screenX+t2.screenX)/2),screenY:floor((t1.screenY+t2.screenY)/2),clientX:floor((t1.clientX+t2.clientX)/2),clientY:floor((t1.clientY+t2.clientY)/2),timeStamp:eventTime(e)});}
function between(c1,c2){var r=GD.THRESHOLD_SMOOTHING;return Object.freeze({screenX:floor(c1.screenX+r*(c2.screenX-c1.screenX)),screenY:floor(c1.screenY+r*(c2.screenY-c1.screenY)),clientX:floor(c1.clientX+r*(c2.clientX-c1.clientX)),clientY:floor(c1.clientY+r*(c2.clientY-c1.clientY)),timeStamp:floor(c1.timeStamp+r*(c2.timeStamp-c1.timeStamp))});}
function touchDistance(t1,t2){var dx=t2.screenX-t1.screenX;var dy=t2.screenY-t1.screenY;return sqrt(dx*dx+dy*dy);}
function touchDirection(t1,t2){return atan2(t2.screenY-t1.screenY,t2.screenX-t1.screenX)*180/PI;}
function touchRotation(d1,d2){var angle=d2-d1;if(angle>180){angle-=360;}else if(angle<=-180){angle+=360;}
return angle;}
function isDoubleTap(lastTap,thisTap){var dx=abs(thisTap.screenX-lastTap.screenX);var dy=abs(thisTap.screenY-lastTap.screenY);var dt=thisTap.timeStamp-lastTap.timeStamp;return(dx<GD.DOUBLE_TAP_DISTANCE&&dy<GD.DOUBLE_TAP_DISTANCE&&dt<GD.DOUBLE_TAP_TIME);}
var initialState={name:'initialState',init:function(d,e,t){d.target=null;d.start=d.last=null;d.touch1=d.touch2=null;d.vx=d.vy=null;d.startDistance=d.lastDistance=null;d.startDirection=d.lastDirection=null;d.lastMidpoint=null;d.scaled=d.rotated=null;if(e&&t&&e.type==='touchstart'){initialState.touchstart(d,e,t);}},touchstart:function(d,e,t){d.switchTo(touchStartedState,e,t);}};var touchStartedState={name:'touchStartedState',init:function(d,e,t){d.target=e.target;d.touch1=t.identifier;d.start=d.last=coordinates(e,t);if(d.options.holdEvents){d.startTimer('holdtimeout',GD.HOLD_INTERVAL);}},touchstart:function(d,e,t){d.clearTimer('holdtimeout');if(e.touches.length>1){d.switchTo(transformState,e,t);}
else{console.warn('Ignoring missing touchend event. See bug 1162771.');d.switchTo(initialState,e,t);}},touchmove:function(d,e,t){if(t.identifier!==d.touch1){return;}
if(abs(t.screenX-d.start.screenX)>d.options.panThreshold||abs(t.screenY-d.start.screenY)>d.options.panThreshold){d.clearTimer('holdtimeout');d.switchTo(panStartedState,e,t);}},touchend:function(d,e,t){if(t.identifier!==d.touch1){return;}
if(d.lastTap&&isDoubleTap(d.lastTap,d.start)){d.emitEvent('tap',d.start);d.emitEvent('dbltap',d.start);d.lastTap=null;}
else{d.emitEvent('tap',d.start);d.lastTap=coordinates(e,t);}
d.clearTimer('holdtimeout');d.switchTo(initialState);},holdtimeout:function(d){d.switchTo(holdState);}};var panStartedState={name:'panStartedState',init:function(d,e,t){d.start=d.last=between(d.start,coordinates(e,t));if(e.type==='touchmove'){panStartedState.touchmove(d,e,t);}},touchmove:function(d,e,t){if(t.identifier!==d.touch1){return;}
var current=coordinates(e,t);d.emitEvent('pan',{absolute:{dx:current.screenX-d.start.screenX,dy:current.screenY-d.start.screenY},relative:{dx:current.screenX-d.last.screenX,dy:current.screenY-d.last.screenY},position:current});var dt=current.timeStamp-d.last.timeStamp;var vx=(current.screenX-d.last.screenX)/dt;var vy=(current.screenY-d.last.screenY)/dt;if(d.vx==null){d.vx=vx;d.vy=vy;}
else{d.vx=d.vx*GD.VELOCITY_SMOOTHING+
vx*(1-GD.VELOCITY_SMOOTHING);d.vy=d.vy*GD.VELOCITY_SMOOTHING+
vy*(1-GD.VELOCITY_SMOOTHING);}
d.last=current;},touchend:function(d,e,t){if(t.identifier!==d.touch1){return;}
var current=coordinates(e,t);var dx=current.screenX-d.start.screenX;var dy=current.screenY-d.start.screenY;var angle=atan2(dy,dx)*180/PI;if(angle<0){angle+=360;}
var direction;if(angle>=315||angle<45){direction='right';}else if(angle>=45&&angle<135){direction='down';}else if(angle>=135&&angle<225){direction='left';}else if(angle>=225&&angle<315){direction='up';}
d.emitEvent('swipe',{start:d.start,end:current,dx:dx,dy:dy,dt:e.timeStamp-d.start.timeStamp,vx:d.vx,vy:d.vy,direction:direction,angle:angle});d.switchTo(initialState);}};var holdState={name:'holdState',init:function(d){d.emitEvent('holdstart',d.start);},touchmove:function(d,e,t){var current=coordinates(e,t);d.emitEvent('holdmove',{absolute:{dx:current.screenX-d.start.screenX,dy:current.screenY-d.start.screenY},relative:{dx:current.screenX-d.last.screenX,dy:current.screenY-d.last.screenY},position:current});d.last=current;},touchend:function(d,e,t){var current=coordinates(e,t);d.emitEvent('holdend',{start:d.start,end:current,dx:current.screenX-d.start.screenX,dy:current.screenY-d.start.screenY});d.switchTo(initialState);}};var transformState={name:'transformState',init:function(d,e,t){d.touch2=t.identifier;var t1=e.touches.identifiedTouch(d.touch1);var t2=e.touches.identifiedTouch(d.touch2);d.startDistance=d.lastDistance=touchDistance(t1,t2);d.startDirection=d.lastDirection=touchDirection(t1,t2);d.scaled=d.rotated=false;},touchmove:function(d,e,t){if(t.identifier!==d.touch1&&t.identifier!==d.touch2){return;}
var t1=e.touches.identifiedTouch(d.touch1);var t2=e.touches.identifiedTouch(d.touch2);var midpoint=midpoints(e,t1,t2);var distance=touchDistance(t1,t2);var direction=touchDirection(t1,t2);var rotation=touchRotation(d.startDirection,direction);if(!d.scaled){if(abs(distance-d.startDistance)>GD.SCALE_THRESHOLD){d.scaled=true;d.startDistance=d.lastDistance=floor(d.startDistance+
GD.THRESHOLD_SMOOTHING*(distance-d.startDistance));}else{distance=d.startDistance;}}
if(!d.rotated){if(abs(rotation)>GD.ROTATE_THRESHOLD){d.rotated=true;}else{direction=d.startDirection;}}
if(d.scaled||d.rotated){d.emitEvent('transform',{absolute:{scale:distance/d.startDistance,rotate:touchRotation(d.startDirection,direction)},relative:{scale:distance/d.lastDistance,rotate:touchRotation(d.lastDirection,direction)},midpoint:midpoint});d.lastDistance=distance;d.lastDirection=direction;d.lastMidpoint=midpoint;}},touchend:function(d,e,t){if(t.identifier===d.touch2){d.touch2=null;}else if(t.identifier===d.touch1){d.touch1=d.touch2;d.touch2=null;}else{return;}
if(d.scaled||d.rotated){d.emitEvent('transformend',{absolute:{scale:d.lastDistance/d.startDistance,rotate:touchRotation(d.startDirection,d.lastDirection)},relative:{scale:1,rotate:0},midpoint:d.lastMidpoint});}
d.switchTo(afterTransformState);}};var afterTransformState={name:'afterTransformState',touchstart:function(d,e,t){d.switchTo(transformState,e,t);},touchend:function(d,e,t){if(t.identifier===d.touch1){d.switchTo(initialState);}}};return GD;}());;(function(exports){'use strict';var ImageUtils=exports.ImageUtils={};const JPEG='image/jpeg';const PNG='image/png';const GIF='image/gif';const BMP='image/bmp';ImageUtils.JPEG=JPEG;ImageUtils.PNG=PNG;ImageUtils.GIF=GIF;ImageUtils.BMP=BMP;ImageUtils.getSizeAndType=function getSizeAndType(imageBlob){if(!(imageBlob instanceof Blob)){console.log('not blob');return Promise.reject(new TypeError('argument is not a Blob'));}
return new Promise(function(resolve,reject){if(imageBlob.size<=16){reject('corrupt image file');return;}
var bytesToRead=32*1024;if(imageBlob.type===PNG||imageBlob.type===GIF||imageBlob.type===BMP){bytesToRead=512;}
findSizeAndType(imageBlob,bytesToRead,success,tryagain);function success(data){resolve(data);}
function tryagain(data){if(data.type===JPEG){findSizeAndType(imageBlob,imageBlob.size,success,failure);}
else{reject(data.error);}}
function failure(data){reject(data.error);}});function findSizeAndType(imageBlob,amountToRead,success,failure){var slice=imageBlob.slice(0,Math.min(amountToRead,imageBlob.size));var reader=new FileReader();reader.readAsArrayBuffer(slice);reader.onloadend=function(){parseImageData(reader.result);};function parseImageData(buffer){var header=new Uint8Array(buffer,0,16);var view=new DataView(buffer);if(header[0]===0x89&&header[1]===0x50&&header[2]===0x4e&&header[3]===0x47&&header[4]===0x0d&&header[5]===0x0a&&header[6]===0x1A&&header[7]===0x0a&&header[12]===0x49&&header[13]===0x48&&header[14]===0x44&&header[15]===0x52)
{try{success({type:PNG,width:view.getUint32(16,false),height:view.getUint32(20,false)});}
catch(ex){failure({error:ex.toString()});}}
else if(header[0]===0x47&&header[1]===0x49&&header[2]===0x46&&header[3]===0x38&&(header[4]===0x37||header[4]===0x39)&&header[5]===0x61)
{try{success({type:GIF,width:view.getUint16(6,true),height:view.getUint16(8,true)});}
catch(ex){failure({error:ex.toString()});}}
else if(header[0]===0x42&&header[1]===0x4D&&view.getUint32(2,true)===imageBlob.size)
{try{var width,height;if(view.getUint16(14,true)===12){width=view.getUint16(18,true);height=view.getUint16(20,true);}
else{width=view.getUint32(18,true);height=view.getUint32(22,true);}
success({type:BMP,width:width,height:height});}
catch(ex){failure({error:ex.toString()});}}
else if(header[0]===0xFF&&header[1]===0xD8){var value={type:JPEG};try{var offset=2;for(;;){if(view.getUint8(offset)!==0xFF){failure({error:'corrupt JPEG file'});}
var segmentType=view.getUint8(offset+1);var segmentSize=view.getUint16(offset+2)+2;if((segmentType>=0xC0&&segmentType<=0xC3)||(segmentType>=0xC5&&segmentType<=0xC7)||(segmentType>=0xC9&&segmentType<=0xCB)||(segmentType>=0xCD&&segmentType<=0xCF))
{value.height=view.getUint16(offset+5,false);value.width=view.getUint16(offset+7,false);success(value);break;}
offset+=segmentSize;if(offset+9>view.byteLength){value.error='corrupt JPEG file';failure(value);break;}}}
catch(ex){failure({error:ex.toString()});}}
else{failure({error:'unknown image type'});}}}};ImageUtils.resizeAndCropToCover=function(inputImageBlob,outputWidth,outputHeight,outputType,encoderOptions)
{if(!outputWidth||!isFinite(outputWidth)||outputWidth<=0||!outputHeight||!isFinite(outputHeight)||outputHeight<=0){return Promise.reject(new TypeError('invalid output dimensions'));}
outputWidth=Math.round(outputWidth);outputHeight=Math.round(outputHeight);return ImageUtils.getSizeAndType(inputImageBlob).then(function resolve(data){var inputWidth=data.width;var inputHeight=data.height;if(inputWidth===outputWidth&&inputHeight===outputHeight){return inputImageBlob;}
return resize(data);},function reject(error){return resize({});});function resize(data){var inputType=data.type;var inputWidth=data.width;var inputHeight=data.height;if(outputType&&outputType!==JPEG&&outputType!==PNG){console.warn('Ignoring unsupported outputType',outputType);outputType=undefined;}
if(!outputType){if(inputType===JPEG||inputType===PNG){outputType=inputType;}
else{outputType=PNG;}}
var url=URL.createObjectURL(inputImageBlob);var mediaFragment;if(inputType===JPEG&&inputWidth>outputWidth&&inputHeight>outputHeight){var reduction=Math.max(outputWidth/inputWidth,outputHeight/inputHeight);mediaFragment=ImageUtils.Downsample.sizeNoMoreThan(reduction);}
else{mediaFragment='';}
return new Promise(function(resolve,reject){var offscreenImage=new Image();offscreenImage.src=url+mediaFragment;offscreenImage.onerror=function(e){cleanupImage();reject('failed to decode image');};offscreenImage.onload=function(){var actualWidth=offscreenImage.width;var actualHeight=offscreenImage.height;var widthScale=outputWidth/actualWidth;var heightScale=outputHeight/actualHeight;var scale=Math.max(widthScale,heightScale);var cropWidth=Math.round(outputWidth/scale);var cropHeight=Math.round(outputHeight/scale);var cropLeft=Math.floor((actualWidth-cropWidth)/2);var cropTop=Math.floor((actualHeight-cropHeight)/2);var canvas=document.createElement('canvas');canvas.width=outputWidth;canvas.height=outputHeight;var context=canvas.getContext('2d',{willReadFrequently:true});context.drawImage(offscreenImage,cropLeft,cropTop,cropWidth,cropHeight,0,0,outputWidth,outputHeight);cleanupImage();canvas.toBlob(function(blob){canvas.width=0;resolve(blob);},outputType,encoderOptions);};function cleanupImage(){offscreenImage.onerror=offscreenImage.onload='';offscreenImage.onload=offscreenImage.onerror=null;offscreenImage.removeAttribute('src');URL.revokeObjectURL(url);}});}};(function(exports){'use strict';function round(x){return Math.round(x*100)/100;}
function MozSampleSize(n,scale){return Object.freeze({dimensionScale:round(scale),areaScale:round(scale*scale),toString:function(){return'#-moz-samplesize='+n;},scale:function(x){return Math.ceil(x*scale);}});}
var NONE=Object.freeze({dimensionScale:1,areaScale:1,toString:function(){return'';},scale:function(x){return x;}});var fragments=[NONE,MozSampleSize(2,1/2),MozSampleSize(3,3/8),MozSampleSize(4,1/4),MozSampleSize(8,1/8)];function sizeAtLeast(scale){scale=round(scale);for(var i=0;i<fragments.length;i++){var f=fragments[i];if(f.dimensionScale<=scale){return f;}}
return fragments[fragments.length-1];}
function sizeNoMoreThan(scale){scale=round(scale);for(var i=fragments.length-1;i>=0;i--){var f=fragments[i];if(f.dimensionScale>=scale){return f;}}
return NONE;}
function areaAtLeast(scale){scale=round(scale);for(var i=0;i<fragments.length;i++){var f=fragments[i];if(f.areaScale<=scale){return f;}}
return fragments[fragments.length-1];}
function areaNoMoreThan(scale){scale=round(scale);for(var i=fragments.length-1;i>=0;i--){var f=fragments[i];if(f.areaScale>=scale){return f;}}
return NONE;}
exports.Downsample={sizeAtLeast:sizeAtLeast,sizeNoMoreThan:sizeNoMoreThan,areaAtLeast:areaAtLeast,areaNoMoreThan:areaNoMoreThan,NONE:NONE,MAX_SIZE_REDUCTION:1/fragments[fragments.length-1].dimensionScale,MAX_AREA_REDUCTION:1/fragments[fragments.length-1].areaScale};}(exports.ImageUtils));})(window);;'use strict';window.onload=function(){navigator.mozSetMessageHandler('activity',function handler(activityRequest){var activityName=activityRequest.source.name;if(activityName!=='share'&&activityName!=='setwallpaper'){return;}
startShare(activityRequest);});var preview=document.getElementById('preview');var cancelButton=document.getElementById('cancel');var setButton=document.getElementById('set-wallpaper');var activity;var blob;var url;var gestureDetector=new GestureDetector(preview);var posX=0;var posY=0;var limitX;var limitY;var scale;var previewImage=document.getElementById('previewImage');var screenWidth,screenHeight;var windowWidth,windowHeight;if(screen.mozOrientation&&screen.mozOrientation.startsWith('landscape')){screenWidth=Math.max(screen.width,screen.height);windowWidth=Math.max(window.innerWidth,window.innerHeight);screenHeight=Math.min(screen.width,screen.height);windowHeight=Math.min(window.innerWidth,window.innerHeight);}else{screenWidth=Math.min(screen.width,screen.height);windowWidth=Math.min(window.innerWidth,window.innerHeight);screenHeight=Math.max(screen.width,screen.height);windowHeight=Math.max(window.innerWidth,window.innerHeight);}
screenWidth=Math.ceil(screenWidth*window.devicePixelRatio);screenHeight=Math.ceil(screenHeight*window.devicePixelRatio);function startShare(request){cancelButton.addEventListener('click',cancelShare);gestureDetector.startDetecting();activity=request;blob=activity.source.data.blobs[0];url=URL.createObjectURL(blob);ImageUtils.getSizeAndType(blob).then(gotImageData,imageDataError);function imageDataError(err){console.error('Could not set wallpaper:',err);activity.postError('Could not set wallpaper: '+err);endShare();}
function gotImageData(imgdata){if(imgdata.type===ImageUtils.JPEG){var scale=Math.max(screenWidth/imgdata.width,screenHeight/imgdata.height);var fragment=ImageUtils.Downsample.sizeNoMoreThan(scale);loadImage(url,fragment);}
else{loadImage(url);}}
function loadImage(url,fragment){previewImage.src=url+(fragment?fragment:'');previewImage.onload=function(){previewImage.hidden=false;var scalex=windowWidth/previewImage.width;var scaley=windowHeight/previewImage.height;scale=Math.max(scalex,scaley);previewImage.width=Math.round(previewImage.width*scale);limitX=windowWidth-previewImage.width;limitY=windowHeight-previewImage.height;posX=Math.round(limitX/2);posY=Math.round(limitY/2);previewImage.style.transform='translate('+posX+'px, '+posY+'px)';setButton.addEventListener('click',scaleImage);previewImage.addEventListener('pan',moveBackground);};}}
function moveBackground(evt){var positions=evt.detail.relative;posX+=positions.dx;if(posX>0){posX=0;}else if(posX<limitX){posX=limitX;}
posY+=positions.dy;if(posY>0){posY=0;}else if(posY<limitY){posY=limitY;}
previewImage.style.transform='translate('+posX+'px, '+posY+'px)';}
function scaleImage(){setButton.disabled=true;var canvas=document.createElement('canvas');canvas.width=screenWidth;canvas.height=screenHeight;var ctx=canvas.getContext('2d');var w=Math.round(windowWidth/scale);var h=Math.round(windowHeight/scale);var x=Math.round(-1*posX/scale);var y=Math.round(-1*posY/scale);if(x<0){x=0;console.error('The value of x shouldn\'t be negative.');}
if(y<0){y=0;console.error('The value of y shouldn\'t be negative.');}
ctx.drawImage(previewImage,x,y,w,h,0,0,canvas.width,canvas.height);canvas.toBlob(function(newBlob){blob=newBlob;setWallpaper();},'image/jpeg');}
function setWallpaper(){var request=navigator.mozSettings.createLock().set({'wallpaper.image':blob});request.onsuccess=function(){activity.postResult('shared');endShare();};request.onerror=function(){console.warn('error setting wallpaper.image:',request.error);activity.postError('could not set wallpaper: '+request.error);endShare();};}
function cancelShare(){activity.postError('cancelled');endShare();}
function endShare(){activity=null;window.URL.revokeObjectURL(url);window.URL.revokeObjectURL(previewImage.src);setButton.removeEventListener('click',scaleImage);cancelButton.removeEventListener('click',cancelShare);}};