fileapi

HTML5 File API always returns DataURI of [object file]. What am I doing wrong?

由 风流意气都作罢 提交于 2019-12-13 07:02:51
问题 Today I have been attempting to make a thumbnail up loader which uses drag and drop and the file API. I feel as if i have got reasonably far. But the DataURI that is provided to be the source in my image file ALWAYS returns as [object file] and therefore doesn't show the image. Any help?! Thanks. Danny (below is my code) <!DOCTYPE html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <style> #thumbnailPreview { width:149px; height

How to make Phonegap's (Cordova) File API work like File API in normal browser

由 泪湿孤枕 提交于 2019-12-13 02:44:52
问题 Is there a way to make Phonegap's File API work just like same API works in browser? I need same behavior as in browser: Tap on "Open file" button -> "Select File" dialog ->... -> Opening the file with FileReader Object. Thank you!!! UPDATE: I've found some solution. It opens File Dialog and it returns the name of the JS File Object. But when i pass that JS File Object to FileReader from PhoneGap - it doesn't open (onload listener never fires). What i do wrong? Here's my Java: package org

ReadAsDataURL() doesn't work

由 元气小坏坏 提交于 2019-12-13 00:26:38
问题 I was trying to implement a Drag n' Drop feature in my website. I need to convert the dropped image into Data URI so I can use it with JCrop and upload it after. drop: function (e) { e = e || window.event; e.preventDefault(); e = e.originalEvent || e; var files = (e.files || e.dataTransfer.files); var reader = new FileReader(); reader.onload = function (event){ console.log(event.target.result); }; reader.readAsDataURL(files); return false; } But nothing shows up in the console. Not even

HTML5 File API - availability and abilities

由 岁酱吖の 提交于 2019-12-12 16:57:13
问题 I just did some reading on File API and I'm wondering now when almost all major browsers are going to support it or supports it already: Firefox, since 3.6 Chrome, since 8.0 ? Opera, IE ? Is this supposed to be a successor/alternative of uploaders based on flash, like plupload or sfwupload ? What is the advantage and disadvantage of it in this case ? Is it able to reliably handle Blobs (byte streams) / files so that when the inputstreams are read by the FileReader, does it have the same

Is the FileAPI in HTML5 dead?

由 故事扮演 提交于 2019-12-12 07:30:55
问题 Referring to the HTML5 FileAPI in particular. I am going through the W3C specification proposals, and from what one can read here: http://www.w3.org/TR/file-system-api/ "Work on this document has been discontinued and it should not be referenced or used as a basis for implementation." Is the FileAPI no longer an HTML5 specification or does it mean that it's implementation details will just change? 回答1: The File API is distinct from the File API - Directories and System. The File API itself is

Work around for Html5 Local File Access

由 安稳与你 提交于 2019-12-12 07:19:27
问题 We are currently looking at porting a enterprise silverlight application over to html5. The major roadblock that we have hit is the ability to open files from the user's local disk. Currently they have a document library which just links to files on their computer that they can open from within the app and view or print out. All that I read is that you can only access the local sandbox of the web app with the html5 file api's. We want to load these files from code. Does anyone know of any

How to load the contents of a local text file by name using Javascript and HTML 5?

由 流过昼夜 提交于 2019-12-12 05:38:22
问题 Working in Chrome, loading a local html or JS file. I found many examples of how to load a file that is selected using the Choose File input. However, didn't figure out how to do it given a file name without using the Choose File input. The Choose File input returns a File object. How to create the File object without the Choose File input? From the File API: new File( Array parts, String filename, BlobPropertyBag properties ); But didn't figure out what the parts and properties would be.

How can I read a local file when the user presses a button using the HTML5 File API ?

由 喜你入骨 提交于 2019-12-12 03:10:08
问题 I'm trying to use jQuery and the HTML5 File API to get data from a local file. I want to read the file and get text from it, but only when the user presses a button, not when the input field's content changes. Here's the code I'm currently using: files = $("#file").files; var reader = new FileReader(); reader.onload = function(event) { var content = event.target.result; alert(content); agregar(content[0]); alert(content); } reader.readAsText(files[0]); This code is triggered when the user

Metadata in Cordova's File API

由 夙愿已清 提交于 2019-12-12 02:08:37
问题 I'm looping through a directory of files in Cordova 3.1.0. For each entry I want the filename and the modification date. I'm using the getMetadata method on the FileEntry object, which returns the Metadata object in the success callback but I can't see anyway to tie that Metadata object back to the FileEntry object. This means I have an array of filenames and an array of modification dates but no link between the two. Here's my code snippet: // DirectoryEntry.getDirectory callback function

File API not supported on Safari Browser

由 Deadly 提交于 2019-12-12 02:02:52
问题 I am using the following code (below) to display an image in my view. When I try it using my iPhone and press on Load, it says that the File API is not supported yet by the browser. What can I do alternatively to do load the image and display it? My objective is to take an image from the phone, manipulate it, and then store it on the phone of the user. CODE: <html> <head> <meta http-equiv="Content-type" content="text/html;charset=UTF-8"> <title>Show Image Dimensions Locally</title> <style
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