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Use WinJS functionality to resize image instead of File plugin functionality

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This commit is contained in:
Vladimir Kotikov 2014-06-11 12:49:58 +04:00
parent 1cf38cd775
commit ffd46c4ef5
1 changed files with 30 additions and 54 deletions
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84
src/windows8/CameraProxy.js
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@ -69,64 +69,40 @@ module.exports = {
} else { } else {
tempPhotoFileName = "camera_cordova_temp_return.jpg"; tempPhotoFileName = "camera_cordova_temp_return.jpg";
} }
var imgObj = new Image();
var success = function (fileEntry) {
var successCB = function (filePhoto) {
var fileType = file.contentType,
reader = new FileReader();
reader.onloadend = function () {
var image = new Image();
image.src = reader.result;
image.onload = function () {
var imageWidth = targetWidth,
imageHeight = targetHeight;
var canvas = document.createElement('canvas');
canvas.width = imageWidth;
canvas.height = imageHeight;
var ctx = canvas.getContext("2d");
ctx.drawImage(this, 0, 0, imageWidth, imageHeight);
// The resized file ready for upload
var _blob = canvas.msToBlob();
var _stream = _blob.msDetachStream();
var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
storageFolder.createFileAsync(tempPhotoFileName, Windows.Storage.CreationCollisionOption.generateUniqueName).done(function (file) {
file.openAsync(Windows.Storage.FileAccessMode.readWrite).done(function (fileStream) {
Windows.Storage.Streams.RandomAccessStream.copyAndCloseAsync(_stream, fileStream).done(function () {
var _imageUrl = URL.createObjectURL(file);
successCallback(_imageUrl);
}, function () {
errorCallback("Resize picture error.");
});
}, function () {
errorCallback("Resize picture error.");
});
}, function () {
errorCallback("Resize picture error.");
});
};
};
reader.readAsDataURL(filePhoto);
};
var failCB = function () {
errorCallback("File not found.");
};
fileEntry.file(successCB, failCB);
};
var storageFolder = Windows.Storage.ApplicationData.current.localFolder; var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
file.copyAsync(storageFolder, file.name, Windows.Storage.NameCollisionOption.replaceExisting).then(function (storageFile) { file.copyAsync(storageFolder, file.name, Windows.Storage.NameCollisionOption.replaceExisting).then(function (storageFile) {
success(new FileEntry(storageFile.name, storageFile.path)); Windows.Storage.FileIO.readBufferAsync(storageFile).then(function(buffer) {
var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
var imageData = "data:" + file.contentType + ";base64," + strBase64;
var image = new Image();
image.src = imageData;
image.onload = function() {
var imageWidth = targetWidth,
imageHeight = targetHeight;
var canvas = document.createElement('canvas');
canvas.width = imageWidth;
canvas.height = imageHeight;
canvas.getContext("2d").drawImage(this, 0, 0, imageWidth, imageHeight);
var fileContent = canvas.toDataURL(file.contentType).split(',')[1];
var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
storageFolder.createFileAsync(tempPhotoFileName, Windows.Storage.CreationCollisionOption.generateUniqueName).done(function (storagefile) {
var content = Windows.Security.Cryptography.CryptographicBuffer.decodeFromBase64String(fileContent);
Windows.Storage.FileIO.writeBufferAsync(storagefile, content).then(function () {
successCallback("ms-appdata:///local/" + storagefile.name);
}, function () {
errorCallback("Resize picture error.");
});
});
};
});
}, function () { }, function () {
fail(FileError.INVALID_MODIFICATION_ERR); errorCallback("Can't access localStorage folder");
}, function () {
errorCallback("Folder not access.");
}); });
}; };