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path: root/apps/system/camera/js/camera.js
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-rw-r--r--apps/system/camera/js/camera.js982
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diff --git a/apps/system/camera/js/camera.js b/apps/system/camera/js/camera.js
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--- a/apps/system/camera/js/camera.js
+++ /dev/null
@@ -1,982 +0,0 @@
-'use strict';
-
-// Utility functions
-function padLeft(num, length) {
- var r = String(num);
- while (r.length < length) {
- r = '0' + r;
- }
- return r;
-}
-
-
-// This handles the logic pertaining to the naming of files according
-// to the Design rule for Camera File System
-// * http://en.wikipedia.org/wiki/Design_rule_for_Camera_File_system
-var DCFApi = (function() {
-
- var api = {};
-
- var dcfConfigLoaded = false;
- var deferredArgs = null;
- var defaultSeq = {file: 1, dir: 100};
-
- var dcfConfig = {
- key: 'dcf_key',
- seq: null,
- postFix: 'MZLLA',
- prefix: {video: 'VID_', image: 'IMG_'},
- ext: {video: '3gp', image: 'jpg'}
- };
-
- api.init = function() {
-
- asyncStorage.getItem(dcfConfig.key, function(value) {
-
- dcfConfigLoaded = true;
- dcfConfig.seq = value ? value : defaultSeq;
-
- // We have a previous call to createDCFFilename that is waiting for
- // a response, fire it again
- if (deferredArgs) {
- var args = deferredArgs;
- api.createDCFFilename(args.storage, args.type, args.callback);
- deferredArgs = null;
- }
- });
- };
-
- api.createDCFFilename = function(storage, type, callback) {
-
- // We havent loaded the current counters from indexedDB yet, defer
- // the call
- if (!dcfConfigLoaded) {
- deferredArgs = {storage: storage, type: type, callback: callback};
- return;
- }
-
- var filepath = 'DCIM/' + dcfConfig.seq.dir + dcfConfig.postFix + '/';
- var filename = dcfConfig.prefix[type] +
- padLeft(dcfConfig.seq.file, 4) + '.' +
- dcfConfig.ext[type];
-
- // A file with this name may have been written by the user or
- // our indexeddb sequence tracker was cleared, check we wont overwrite
- // anything
- var req = storage.get(filepath + filename);
-
- // A file existed, we bump the directory then try to generate a
- // new filename
- req.onsuccess = function() {
- dcfConfig.seq.file = 1;
- dcfConfig.seq.dir += 1;
- asyncStorage.setItem(dcfConfig.key, dcfConfig.seq, function() {
- api.createDCFFilename(storage, type, callback);
- });
- };
-
- // No file existed, we are good to go
- req.onerror = function() {
- if (dcfConfig.seq.file < 9999) {
- dcfConfig.seq.file += 1;
- } else {
- dcfConfig.seq.file = 1;
- dcfConfig.seq.dir += 1;
- }
- asyncStorage.setItem(dcfConfig.key, dcfConfig.seq, function() {
- callback(filepath, filename);
- });
- };
- };
-
- return api;
-
-})();
-
-var Camera = {
- _cameras: null,
- _camera: 0,
- _captureMode: null,
- _recording: false,
-
- // In secure mode the user cannot browse to the gallery
- _secureMode: window.parent !== window,
- _currentOverlay: null,
-
- CAMERA: 'camera',
- VIDEO: 'video',
-
- _videoTimer: null,
- _videoStart: null,
- _videoPath: null,
-
- _autoFocusSupported: 0,
- _manuallyFocused: false,
-
- _timeoutId: 0,
- _cameraObj: null,
-
- _photosTaken: [],
- _cameraProfile: null,
-
- _resumeViewfinderTimer: null,
- _waitingToGenerateThumb: false,
-
- _styleSheet: document.styleSheets[0],
- _orientationRule: null,
- _phoneOrientation: 0,
-
- _pictureStorage: null,
- _videoStorage: null,
- _storageState: null,
-
- STORAGE_INIT: 0,
- STORAGE_AVAILABLE: 1,
- STORAGE_NOCARD: 2,
- STORAGE_UNMOUNTED: 3,
- STORAGE_CAPACITY: 4,
-
- _pictureSize: null,
- _previewPaused: false,
- _previewActive: false,
-
- PREVIEW_PAUSE: 500,
- FILMSTRIP_DURATION: 5000, // show filmstrip for 5s before fading
-
- _flashModes: [],
- _currentFlashMode: 0,
-
- _config: {
- fileFormat: 'jpeg'
- },
-
- get _previewConfig() {
- delete this._previewConfig;
- return this._previewConfig = {
- width: document.body.clientHeight,
- height: document.body.clientWidth
- };
- },
-
- _previewConfigVideo: {
- profile: 'cif',
- rotation: 0,
- width: 352,
- height: 288
- },
-
- _shutterKey: 'camera.shutter.enabled',
- _shutterSound: null,
- _shutterSoundEnabled: true,
-
- PROMPT_DELAY: 2000,
-
- _watchId: null,
- _position: null,
-
- _pendingPick: null,
-
- // The minimum available disk space to start recording a video.
- RECORD_SPACE_MIN: 1024 * 1024 * 2,
-
- // Number of bytes left on disk to let us stop recording.
- RECORD_SPACE_PADDING: 1024 * 1024 * 1,
-
- // Maximum image resolution for still photos taken with camera
- MAX_IMAGE_RES: 1600 * 1200, // Just under 2 megapixels
-
- get overlayTitle() {
- return document.getElementById('overlay-title');
- },
-
- get overlayText() {
- return document.getElementById('overlay-text');
- },
-
- get overlay() {
- return document.getElementById('overlay');
- },
-
- get viewfinder() {
- return document.getElementById('viewfinder');
- },
-
- get switchButton() {
- return document.getElementById('switch-button');
- },
-
- get captureButton() {
- return document.getElementById('capture-button');
- },
-
- get galleryButton() {
- return document.getElementById('gallery-button');
- },
-
- get videoTimer() {
- return document.getElementById('video-timer');
- },
-
- get focusRing() {
- return document.getElementById('focus-ring');
- },
-
- get toggleButton() {
- return document.getElementById('toggle-camera');
- },
-
- get toggleFlashBtn() {
- return document.getElementById('toggle-flash');
- },
-
- // We have seperated init and delayedInit as we want to make sure
- // that on first launch we dont interfere and load the camera
- // previewStream as fast as possible, once the previewStream is
- // active we do the rest of the initialisation.
- init: function() {
- this.setCaptureMode(this.CAMERA);
- this.loadCameraPreview(this._camera, this.delayedInit.bind(this));
- },
-
- delayedInit: function camera_delayedInit() {
- // If we don't have any pending messages, show the usual UI
- // Otherwise, determine which buttons to show once we get our
- // activity message
- if (!navigator.mozHasPendingMessage('activity')) {
- this.galleryButton.classList.remove('hidden');
- this.switchButton.classList.remove('hidden');
- this.enableButtons();
- }
-
- // Dont let the phone go to sleep while the camera is
- // active, user must manually close it
- if (navigator.requestWakeLock) {
- navigator.requestWakeLock('screen');
- }
-
- this.setToggleCameraStyle();
-
- // We lock the screen orientation and deal with rotating
- // the icons manually
- var css = '#switch-button span, #capture-button span, ' +
- '#gallery-button span { -moz-transform: rotate(0deg); }';
- var insertId = this._styleSheet.cssRules.length - 1;
- this._orientationRule = this._styleSheet.insertRule(css, insertId);
- window.addEventListener('deviceorientation', this.orientChange.bind(this));
-
- this.toggleButton.addEventListener('click', this.toggleCamera.bind(this));
- this.toggleFlashBtn.addEventListener('click', this.toggleFlash.bind(this));
- this.viewfinder.addEventListener('click', this.toggleFilmStrip.bind(this));
-
- this.switchButton
- .addEventListener('click', this.toggleModePressed.bind(this));
- this.captureButton
- .addEventListener('click', this.capturePressed.bind(this));
- this.galleryButton
- .addEventListener('click', this.galleryBtnPressed.bind(this));
-
- if (!navigator.mozCameras) {
- this.captureButton.setAttribute('disabled', 'disabled');
- return;
- }
-
- if (this._secureMode) {
- this.galleryButton.setAttribute('disabled', 'disabled');
- }
-
- this._shutterSound = new Audio('./resources/sounds/shutter.ogg');
- this._shutterSound.mozAudioChannelType = 'publicnotification';
-
- if ('mozSettings' in navigator) {
- var req = navigator.mozSettings.createLock().get(this._shutterKey);
- req.onsuccess = (function onsuccess() {
- this._shutterSoundEnabled = req.result[this._shutterKey];
- }).bind(this);
-
- navigator.mozSettings.addObserver(this._shutterKey, (function(e) {
- this._shutterSoundEnabled = e.settingValue;
- }).bind(this));
- }
-
- this._storageState = this.STORAGE_INIT;
-
- this._pictureStorage = navigator.getDeviceStorage('pictures');
- this._videoStorage = navigator.getDeviceStorage('videos'),
-
- this._pictureStorage
- .addEventListener('change', this.deviceStorageChangeHandler.bind(this));
-
- navigator.mozSetMessageHandler('activity', function(activity) {
- var name = activity.source.name;
- if (name === 'pick') {
- Camera.initPick(activity);
- }
- else {
- // We got another activity. Perhaps we were launched from gallery
- // So show our usual buttons
- Camera.galleryButton.classList.remove('hidden');
- Camera.switchButton.classList.remove('hidden');
- }
- Camera.enableButtons();
- });
-
- DCFApi.init();
- },
-
- enableButtons: function camera_enableButtons() {
- if (!this._pendingPick) {
- this.switchButton.removeAttribute('disabled');
- }
- this.captureButton.removeAttribute('disabled');
- },
-
- disableButtons: function camera_disableButtons() {
- this.switchButton.setAttribute('disabled', 'disabled');
- this.captureButton.setAttribute('disabled', 'disabled');
- },
-
- // When inside an activity the user cannot switch between
- // the gallery or video recording.
- initPick: function camera_initPick(activity) {
- this._pendingPick = activity;
-
- // Hide the gallery and switch buttons, leaving only the shutter
- this.galleryButton.classList.add('hidden');
- this.switchButton.classList.add('hidden');
-
- // Display the cancel button and add an event listener for it
- var cancelButton = document.getElementById('cancel-pick');
- cancelButton.classList.remove('hidden');
- cancelButton.onclick = this.cancelPick.bind(this);
- },
-
- cancelPick: function camera_cancelPick() {
- if (this._pendingPick) {
- this._pendingPick.postError('pick cancelled');
- }
- this._pendingPick = null;
- },
-
- toggleModePressed: function camera_toggleCaptureMode(e) {
- if (e.target.getAttribute('disabled')) {
- return;
- }
-
- var newMode = (this.captureMode === this.CAMERA) ? this.VIDEO : this.CAMERA;
- this.disableButtons();
- this.setCaptureMode(newMode);
-
- function gotPreviewStream(stream) {
- this.viewfinder.mozSrcObject = stream;
- this.viewfinder.play();
- this.enableButtons();
- }
- if (this.captureMode === this.CAMERA) {
- this._cameraObj.getPreviewStream(this._previewConfig,
- gotPreviewStream.bind(this));
- } else {
- this._previewConfigVideo.rotation = this._phoneOrientation;
- this._cameraObj.getPreviewStreamVideoMode(this._previewConfigVideo,
- gotPreviewStream.bind(this));
- }
- },
-
- toggleCamera: function camera_toggleCamera() {
- this._camera = 1 - this._camera;
- this.loadCameraPreview(this._camera, this.enableButtons.bind(this));
- this.setToggleCameraStyle();
- },
-
- setToggleCameraStyle: function camera_setToggleCameraStyle() {
- var modeName = this._camera === 0 ? 'back' : 'front';
- this.toggleButton.setAttribute('data-mode', modeName);
- },
-
- toggleFlash: function camera_toggleFlash() {
- if (this._currentFlashMode === this._flashModes.length - 1) {
- this._currentFlashMode = 0;
- } else {
- this._currentFlashMode = this._currentFlashMode + 1;
- }
- this.setFlashMode();
- },
-
- setFlashMode: function camera_setFlashMode() {
- var flashModeName = this._flashModes[this._currentFlashMode];
- this.toggleFlashBtn.setAttribute('data-mode', flashModeName);
- this._cameraObj.flashMode = flashModeName;
- },
-
- toggleRecording: function camera_toggleRecording() {
- if (this._recording) {
- this.stopRecording();
- return;
- }
-
- this.startRecording();
- },
-
- startRecording: function camera_startRecording() {
- var captureButton = this.captureButton;
- var switchButton = this.switchButton;
-
- var onerror = function() {
- handleError('error-recording');
- }
- var onsuccess = (function onsuccess() {
- document.body.classList.add('capturing');
- captureButton.removeAttribute('disabled');
- this._recording = true;
- this.startRecordingTimer();
-
- // Hide the filmstrip to prevent the users from
- // entering the preview mode after Camera starts recording
- if (Filmstrip.isShown())
- Filmstrip.hide();
-
- // User closed app while recording was trying to start
- if (document.mozHidden) {
- this.stopRecording();
- }
- }).bind(this);
-
- var handleError = (function handleError(id) {
- this.enableButtons();
- alert(navigator.mozL10n.get(id + '-title') + '. ' +
- navigator.mozL10n.get(id + '-text'));
- }).bind(this);
-
- this.disableButtons();
-
- var startRecording = (function startRecording(freeBytes) {
- if (freeBytes < this.RECORD_SPACE_MIN) {
- handleError('nospace');
- return;
- }
-
- var config = {
- rotation: this._phoneOrientation,
- maxFileSizeBytes: freeBytes - this.RECORD_SPACE_PADDING
- };
- this._cameraObj.startRecording(config,
- this._videoStorage, this._videoPath,
- onsuccess, onerror);
- }).bind(this);
-
- DCFApi.createDCFFilename(this._videoStorage, 'video', (function(path, name) {
- this._videoPath = path + name;
-
- // The CameraControl API will not automatically create directories
- // for the new file if they do not exist, so write a dummy file
- // to the same directory via DeviceStorage to ensure that the directory
- // exists before recording starts.
- var dummyblob = new Blob([''], {type: 'video/3gpp'});
- var dummyfilename = path + '.' + name;
- var req = this._videoStorage.addNamed(dummyblob, dummyfilename);
- req.onerror = onerror;
- req.onsuccess = (function fileCreated() {
- this._videoStorage.delete(dummyfilename); // No need to wait for success
- // Determine the number of bytes available on disk.
- var spaceReq = this._videoStorage.freeSpace();
- spaceReq.onerror = onerror;
- spaceReq.onsuccess = function() {
- startRecording(spaceReq.result);
- }
- }).bind(this);
- }).bind(this));
- },
-
- startRecordingTimer: function camera_startRecordingTimer() {
- this._videoStart = new Date().getTime();
- this.videoTimer.textContent = this.formatTimer(0);
- this._videoTimer =
- window.setInterval(this.updateVideoTimer.bind(this), 1000);
- },
-
- updateVideoTimer: function camera_updateVideoTimer() {
- var videoLength =
- Math.round((new Date().getTime() - this._videoStart) / 1000);
- this.videoTimer.textContent = this.formatTimer(videoLength);
- },
-
- stopRecording: function camera_stopRecording() {
- this._cameraObj.stopRecording();
- this._recording = false;
- window.clearInterval(this._videoTimer);
- this.enableButtons();
- document.body.classList.remove('capturing');
-
- // XXX
- // I need some way to know when the camera is done writing this file
- // currently I'm sending this to the filmstrip which is trying to
- // determine its rotation and fails sometimes if the file is not
- // yet complete. For now, I just defer for a second, but
- // there ought to be a better way.
- // See https://bugzilla.mozilla.org/show_bug.cgi?id=817367
- // Maybe I'll get a device storage callback... check this.
- var videofile = this._videoPath;
- setTimeout(function() {
- Filmstrip.addVideo(videofile);
- Filmstrip.show(Camera.FILMSTRIP_DURATION);
- }, 1000);
- },
-
- formatTimer: function camera_formatTimer(time) {
- var minutes = Math.floor(time / 60);
- var seconds = Math.round(time % 60);
- if (minutes < 60) {
- return padLeft(minutes, 2) + ':' + padLeft(seconds, 2);
- }
- return '';
- },
-
- capturePressed: function camera_doCapture(e) {
- if (e.target.getAttribute('disabled')) {
- return;
- }
-
- if (this.captureMode === this.CAMERA) {
- this.prepareTakePicture();
- } else {
- this.toggleRecording();
- }
- },
-
- galleryBtnPressed: function camera_galleryBtnPressed() {
- // Can't launch the gallery if the lockscreen is locked.
- // The button shouldn't even be visible in this case, but
- // let's be really sure here.
- if (this._secureMode)
- return;
-
- // Launch the gallery with an activity
- var a = new MozActivity({
- name: 'browse',
- data: {
- type: 'photos'
- }
- });
- },
-
- orientChange: function camera_orientChange(e) {
- // Orientation is 0 starting at 'natural portrait' increasing
- // going clockwise
- var orientation = (e.beta > 45) ? 180 :
- (e.beta < -45) ? 0 :
- (e.gamma < -45) ? 90 :
- (e.gamma > 45) ? 270 : 0;
-
- if (orientation !== this._phoneOrientation) {
- var rule = this._styleSheet.cssRules[this._orientationRule];
- // PLEASE DO SOMETHING KITTENS ARE DYING
- // Setting MozRotate to 90 or 270 causes element to disappear
- rule.style.MozTransform = 'rotate(' + -(orientation + 1) + 'deg)';
- this._phoneOrientation = orientation;
-
- Filmstrip.setOrientation(orientation);
- }
- },
-
- setCaptureMode: function camera_setCaptureMode(mode) {
- if (this.captureMode) {
- document.body.classList.remove(this.captureMode);
- }
- this.captureMode = mode;
- document.body.classList.add(mode);
- },
-
- toggleFilmStrip: function camera_toggleFilmStrip(ev) {
- // We will just ignore
- // because the filmstrip shouldn't be shown
- // while Camera is recording
- if (this._recording)
- return;
-
- if (Filmstrip.isShown())
- Filmstrip.hide();
- else
- Filmstrip.show();
- },
-
- loadCameraPreview: function camera_loadCameraPreview(camera, callback) {
-
- this.viewfinder.mozSrcObject = null;
- this._timeoutId = 0;
-
- var viewfinder = this.viewfinder;
- var style = viewfinder.style;
- var width = document.body.clientHeight;
- var height = document.body.clientWidth;
-
- style.top = ((width / 2) - (height / 2)) + 'px';
- style.left = -((width / 2) - (height / 2)) + 'px';
-
- var transform = 'rotate(90deg)';
- var rotation;
- if (camera == 1) {
- /* backwards-facing camera */
- transform += ' scale(-1, 1)';
- rotation = 0;
- } else {
- /* forwards-facing camera */
- rotation = 0;
- }
-
- style.MozTransform = transform;
- style.width = width + 'px';
- style.height = height + 'px';
-
- this._cameras = navigator.mozCameras.getListOfCameras();
- var options = {camera: this._cameras[this._camera]};
-
- function gotPreviewScreen(stream) {
- viewfinder.mozSrcObject = stream;
- viewfinder.play();
-
- if (callback) {
- callback();
- }
-
- this._previewActive = true;
- this.checkStorageSpace();
- setTimeout(this.initPositionUpdate.bind(this), this.PROMPT_DELAY);
- }
-
- function gotCamera(camera) {
- this._cameraObj = camera;
- this._config.rotation = rotation;
- this._autoFocusSupported =
- camera.capabilities.focusModes.indexOf('auto') !== -1;
- this._pictureSize =
- this.pickPictureSize(camera.capabilities.pictureSizes);
- this.enableCameraFeatures(camera.capabilities);
- camera.onShutter = (function() {
- if (this._shutterSoundEnabled) {
- this._shutterSound.play();
- }
- }).bind(this);
- camera.onRecorderStateChange = this.recordingStateChanged.bind(this);
- if (this.captureMode === this.CAMERA) {
- camera.getPreviewStream(this._previewConfig, gotPreviewScreen.bind(this));
- } else {
- this._previewConfigVideo.rotation = this._phoneOrientation;
- this._cameraObj.getPreviewStreamVideoMode(this._previewConfigVideo,
- gotPreviewScreen.bind(this));
- }
- }
-
- // If there is already a camera, we would have to release it first.
- if (this._cameraObj) {
- this.release(function camera_release_callback() {
- navigator.mozCameras.getCamera(options, gotCamera.bind(this));
- });
- } else {
- navigator.mozCameras.getCamera(options, gotCamera.bind(this));
- }
- },
-
- recordingStateChanged: function(msg) {
- if (msg === 'FileSizeLimitReached') {
- this.stopRecording();
- alert(navigator.mozL10n.get('size-limit-reached'));
- }
- },
-
- enableCameraFeatures: function camera_enableCameraFeatures(capabilities) {
- if (this._cameras.length > 1) {
- this.toggleButton.classList.remove('hidden');
- } else {
- this.toggleButton.classList.add('hidden');
- }
-
- this._flashModes = capabilities.flashModes;
- if (this._flashModes) {
- this.setFlashMode();
- this.toggleFlashBtn.classList.remove('hidden');
- } else {
- this.toggleFlashBtn.classList.add('hidden');
- }
- },
-
- startPreview: function camera_startPreview() {
- this.viewfinder.play();
- this.loadCameraPreview(this._camera, this.enableButtons.bind(this));
- this._previewActive = true;
- },
-
- stopPreview: function camera_stopPreview() {
- if (this._recording) {
- this.stopRecording();
- }
- this.disableButtons();
- this.viewfinder.pause();
- this._previewActive = false;
- this.viewfinder.mozSrcObject = null;
- this.release();
- },
-
- resumePreview: function camera_resumePreview() {
- this._cameraObj.resumePreview();
- this._previewActive = true;
- this.enableButtons();
- },
-
- restartPreview: function camera_restartPreview() {
- this._resumeViewfinderTimer =
- window.setTimeout(this.resumePreview.bind(this), this.PREVIEW_PAUSE);
- },
-
- takePictureSuccess: function camera_takePictureSuccess(blob) {
- this._manuallyFocused = false;
- this.hideFocusRing();
- this.restartPreview();
- DCFApi.createDCFFilename(this._pictureStorage, 'image', (function(path, name) {
- var addreq = this._pictureStorage.addNamed(blob, path + name);
- addreq.onsuccess = (function() {
- if (this._pendingPick) {
- // XXX: https://bugzilla.mozilla.org/show_bug.cgi?id=806503
- // We ought to just be able to pass this blob to the activity.
- // But there seems to be a bug with blob lifetimes and activities.
- // So we'll get a new blob back out of device storage to ensure
- // that we've got a file-backed blob instead of a memory-backed blob.
- var getreq = this._pictureStorage.get(path + name);
- getreq.onsuccess = (function() {
- this._pendingPick.postResult({
- type: 'image/jpeg',
- blob: getreq.result
- });
- this.cancelPick();
- }).bind(this);
-
- return;
- }
-
- Filmstrip.addImage(path + name, blob);
- Filmstrip.show(Camera.FILMSTRIP_DURATION);
- this.checkStorageSpace();
-
- }).bind(this);
-
- addreq.onerror = function() {
- alert(navigator.mozL10n.get('error-saving-title') + '. ' +
- navigator.mozL10n.get('error-saving-text'));
- };
- }).bind(this));
- },
-
- hideFocusRing: function camera_hideFocusRing() {
- this.focusRing.removeAttribute('data-state');
- },
-
- checkStorageSpace: function camera_checkStorageSpace() {
- if (this.updateOverlay()) {
- return;
- }
-
- // The first time we're called, we need to make sure that there
- // is an sdcard and that it is mounted. (Subsequently the device
- // storage change handler will track that.)
- if (this._storageState === this.STORAGE_INIT) {
- this._pictureStorage.available().onsuccess = (function(e) {
- this.updateStorageState(e.target.result);
- this.updateOverlay();
- // Now call the parent method again, so that if the sdcard is
- // available we will actually verify that there is enough space on it
- this.checkStorageSpace();
- }.bind(this));
- return;
- }
-
- // Now verify that there is enough space to store a picture
- // 4 bytes per pixel plus some room for a header should be more
- // than enough for a JPEG image.
- var MAX_IMAGE_SIZE =
- (this._pictureSize.width * this._pictureSize.height * 4) + 4096;
-
- this._pictureStorage.freeSpace().onsuccess = (function(e) {
- // XXX
- // If we ever enter this out-of-space condition, it looks like
- // this code will never be able to exit. The user will have to
- // quit the app and start it again. Just deleting files will
- // not be enough to get back to the STORAGE_AVAILABLE state.
- // To fix this, we need an else clause here, and also a change
- // in the updateOverlay() method.
- if (e.target.result < MAX_IMAGE_SIZE) {
- this._storageState = this.STORAGE_CAPACITY;
- }
- this.updateOverlay();
- }).bind(this);
- },
-
- deviceStorageChangeHandler: function camera_deviceStorageChangeHandler(e) {
- switch (e.reason) {
- case 'available':
- case 'unavailable':
- case 'shared':
- this.updateStorageState(e.reason);
- break;
- }
- this.checkStorageSpace();
- },
-
- updateStorageState: function camera_updateStorageState(state) {
- switch (state) {
- case 'available':
- this._storageState = this.STORAGE_AVAILABLE;
- break;
- case 'unavailable':
- this._storageState = this.STORAGE_NOCARD;
- break;
- case 'shared':
- this._storageState = this.STORAGE_UNMOUNTED;
- break;
- }
- },
-
- updateOverlay: function camera_updateOverlay() {
- if (this._storageState === this.STORAGE_INIT) {
- return false;
- }
-
- if (this._storageState === this.STORAGE_AVAILABLE) {
- // Preview may have previously been paused if storage
- // was not available
- if (!this._previewActive && !document.mozHidden) {
- this.startPreview();
- }
- this.showOverlay(null);
- return false;
- }
-
- switch (this._storageState) {
- case this.STORAGE_NOCARD:
- this.showOverlay('nocard');
- break;
- case this.STORAGE_UNMOUNTED:
- this.showOverlay('pluggedin');
- break;
- case this.STORAGE_CAPACITY:
- this.showOverlay('nospace2');
- break;
- }
- if (this._previewActive) {
- this.stopPreview();
- }
- return true;
- },
-
- prepareTakePicture: function camera_takePicture() {
- this.disableButtons();
- this.focusRing.setAttribute('data-state', 'focusing');
- if (this._autoFocusSupported && !this._manuallyFocused) {
- this._cameraObj.autoFocus(this.autoFocusDone.bind(this));
- } else {
- this.takePicture();
- }
- },
-
- autoFocusDone: function camera_autoFocusDone(success) {
- if (!success) {
- this.enableButtons();
- this.focusRing.setAttribute('data-state', 'fail');
- window.setTimeout(this.hideFocusRing.bind(this), 1000);
- return;
- }
- this.focusRing.setAttribute('data-state', 'focused');
- this.takePicture();
- },
-
- takePicture: function camera_takePicture() {
- this._config.rotation = this._phoneOrientation;
- this._config.pictureSize = this._pictureSize;
- if (this._position) {
- this._config.position = this._position;
- }
- this._cameraObj
- .takePicture(this._config, this.takePictureSuccess.bind(this));
- },
-
- showOverlay: function camera_showOverlay(id) {
- this._currentOverlay = id;
-
- if (id === null) {
- this.overlay.classList.add('hidden');
- return;
- }
-
- this.overlayTitle.textContent = navigator.mozL10n.get(id + '-title');
- this.overlayText.textContent = navigator.mozL10n.get(id + '-text');
- this.overlay.classList.remove('hidden');
- },
-
- pickPictureSize: function camera_pickPictureSize(pictureSizes) {
- var maxRes = this.MAX_IMAGE_RES;
- var size = pictureSizes.reduce(function(acc, size) {
- var mp = size.width * size.height;
- return (mp > acc.width * acc.height && mp <= maxRes) ? size : acc;
- }, {width: 0, height: 0});
-
- if (size.width === 0 && size.height === 0) {
- return pictureSizes[0];
- } else {
- return size;
- }
- },
-
- initPositionUpdate: function camera_initPositionUpdate() {
- if (this._watchId || document.mozHidden) {
- return;
- }
- this._watchId = navigator.geolocation
- .watchPosition(this.updatePosition.bind(this));
- },
-
- updatePosition: function camera_updatePosition(position) {
- this._position = {
- timestamp: position.timestamp,
- altitude: position.coords.altitude,
- latitude: position.coords.latitude,
- longitude: position.coords.longitude
- };
- },
-
- cancelPositionUpdate: function camera_cancelPositionUpdate() {
- navigator.geolocation.clearWatch(this._watchId);
- this._watchId = null;
- },
-
- release: function camera_release(callback) {
- if (!this._cameraObj)
- return;
-
- this._cameraObj.release(function cameraReleased() {
- Camera._cameraObj = null;
- if (callback)
- callback.call(Camera);
- }, function releaseError() {
- console.warn('Camera: failed to release hardware?');
- if (callback)
- callback.call(Camera);
- });
- }
-};
-
-Camera.init();
-
-document.addEventListener('mozvisibilitychange', function() {
- if (document.mozHidden) {
- Camera.stopPreview();
- Camera.cancelPick();
- Camera.cancelPositionUpdate();
- if (this._secureMode) // If the lockscreen is locked
- Filmstrip.clear(); // then forget everything when closing camera
- } else {
- Camera.startPreview();
- }
-});
-
-window.addEventListener('beforeunload', function() {
- window.clearTimeout(Camera._timeoutId);
- delete Camera._timeoutId;
- Camera.viewfinder.mozSrcObject = null;
-});