b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
25 lines
No EOL
4.2 KiB
JavaScript
25 lines
No EOL
4.2 KiB
JavaScript
;'use strict';(function init(){var activity;var activityData;var blob;var frame;var saved=false;var storage;var title;navigator.mozSetMessageHandler('activity',handleOpenActivity);function $(id){return document.getElementById(id);}
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function open(blob){if(activityData.allowSave&&activityData.filename&&checkFilename()){getStorageIfAvailable('pictures',blob.size,function(ds){storage=ds;showSaveButton();});}
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getImageSize(blob,success,error);function success(metadata){var pixels=metadata.width*metadata.height;var imagesizelimit=CONFIG_MAX_IMAGE_PIXEL_SIZE;if(blob.type==='image/jpeg'){imagesizelimit*=Downsample.MAX_AREA_REDUCTION;}
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var filesizelimit=2*CONFIG_MAX_IMAGE_PIXEL_SIZE;if(pixels>imagesizelimit||blob.size>filesizelimit){displayError('imagetoobig');return;}
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if(!metadata.preview||pixels<512*1024){frame.displayImage(blob,metadata.width,metadata.height,null,metadata.rotation,metadata.mirrored);}
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else{parseJPEGMetadata(blob.slice(metadata.preview.start,metadata.preview.end,'image/jpeg'),function success(previewmetadata){metadata.preview.width=previewmetadata.width;metadata.preview.height=previewmetadata.height;frame.displayImage(blob,metadata.width,metadata.height,metadata.preview,metadata.rotation,metadata.mirrored);},function error(){frame.displayImage(blob,metadata.width,metadata.height,null,metadata.rotation,metadata.mirrored);});}}
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function error(msg){displayError('imageinvalid');}}
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function handleOpenActivity(request){activity=request;activityData=activity.source.data;if(!frame){$('header').addEventListener('action',done);$('save').addEventListener('click',save);frame=new MediaFrame($('frame'),false,CONFIG_MAX_IMAGE_PIXEL_SIZE);if(CONFIG_REQUIRED_EXIF_PREVIEW_WIDTH){frame.setMinimumPreviewSize(CONFIG_REQUIRED_EXIF_PREVIEW_WIDTH,CONFIG_REQUIRED_EXIF_PREVIEW_HEIGHT);}
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var gestureDetector=new GestureDetector(frame.container);gestureDetector.startDetecting();frame.container.addEventListener('dbltap',handleDoubleTap);frame.container.addEventListener('transform',handleTransform);frame.container.addEventListener('pan',handlePan);frame.container.addEventListener('swipe',handleSwipe);window.addEventListener('resize',frame.resize.bind(frame));if(activityData.exitWhenHidden){window.addEventListener('visibilitychange',function(){if(document.hidden){done();}});}
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frame.onerror=function invalid(){displayError('imageinvalid');};}
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title=baseName(activityData.filename||'');$('filename').textContent=title;blob=activityData.blob;open(blob);NFC.share(blob,{foregroundElement:$('open'),backgroundElement:document.body});}
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function checkFilename(){if(activityData.filename.indexOf('.gallery/')!=-1){return false;}
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else{var dotIdx=activityData.filename.lastIndexOf('.');if(dotIdx>-1){var ext=activityData.filename.substr(dotIdx+1);return MimeMapper.guessTypeFromExtension(ext)===blob.type;}else{return false;}}}
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function displayError(msgid){document.l10n.formatValue(msgid).then(function(val){alert(val);done();});}
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function done(){activity.postResult({saved:saved});activity=null;NFC.unshare();}
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function handleDoubleTap(e){var scale;if(frame.fit.scale>frame.fit.baseScale){scale=frame.fit.baseScale/frame.fit.scale;}else{scale=2;}
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frame.zoom(scale,e.detail.clientX,e.detail.clientY,200);}
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function handleTransform(e){frame.zoom(e.detail.relative.scale,e.detail.midpoint.clientX,e.detail.midpoint.clientY);}
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function handlePan(e){frame.pan(e.detail.relative.dx,e.detail.relative.dy);}
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function handleSwipe(e){var direction=e.detail.direction;var velocity=e.detail.vy;if(direction==='down'&&velocity>2){done();}}
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function save(){hideSaveButton();getUnusedFilename(storage,activityData.filename,function(filename){var savereq=storage.addNamed(blob,filename);savereq.onsuccess=function(){saved=filename;showBanner('saved',title);};savereq.onerror=function(e){console.error('Error saving',filename,e);};});}
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function showSaveButton(){$('save').classList.remove('hidden');$('filename').textContent=$('filename').textContent;}
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function hideSaveButton(){$('save').classList.add('hidden');$('filename').textContent=$('filename').textContent;}
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function showBanner(msg,title){document.l10n.setAttributes($('message'),msg,{filename:title});$('banner').hidden=false;setTimeout(function(){$('banner').hidden=true;},3000);}
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function baseName(filename){return filename.substring(filename.lastIndexOf('/')+1);}})(); |