init

.gitignore

@@ -0,0 +1,8 @@
+.bundle/
+log/*.log
+pkg/
+test/dummy/db/*.sqlite3
+test/dummy/db/*.sqlite3-journal
+test/dummy/log/*.log
+test/dummy/tmp/
+test/dummy/.sass-cache

Gemfile

@@ -0,0 +1,14 @@
+source 'https://rubygems.org'
+
+# Declare your gem's dependencies in attache_client.gemspec.
+# Bundler will treat runtime dependencies like base dependencies, and
+# development dependencies will be added by default to the :development group.
+gemspec
+
+# Declare any dependencies that are still in development here instead of in
+# your gemspec. These might include edge Rails or gems from your path or
+# Git. Remember to move these dependencies to your gemspec before releasing
+# your gem to rubygems.org.
+
+# To use a debugger
+# gem 'byebug', group: [:development, :test]

Gemfile.lock

@@ -0,0 +1,14 @@
+PATH
+  remote: .
+  specs:
+    attache_client (0.0.1)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  attache_client!

MIT-LICENSE

@@ -0,0 +1,20 @@
+Copyright 2015 choonkeat
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# attache_client
+
+Ruby on Rails integration for [attache server](https://github.com/choonkeat/attache)
+
+## Dependencies
+
+[React](https://github.com/reactjs/react-rails), jQuery, Bootstrap 3
+
+## Installation
+
+Install the attache_client package from Rubygems:
+
+``` bash
+gem install attache_client
+```
+
+Or add this to your `Gemfile`
+
+``` ruby
+gem "attache_client"
+```
+
+Add the attache javascript to your `application.js`
+
+``` javascript
+//= require attache
+```
+
+Or you can include the various scripts yourself
+
+``` javascript
+//= require attache/cors_upload
+//= require attache/bootstrap3
+//= require attache/ujs
+```
+
+## Usage
+
+### Database
+
+To use `attache`, you only need to store the `path`, given to you after you've uploaded a file. So if you have an existing model, you only need to add a string, varchar or text field
+
+``` bash
+rails generate migration AddPhotoPathToUsers photo_path:string
+```
+
+To assign **multiple** images to **one** model, you'd only need one text field
+
+``` bash
+rails generate migration AddPhotoPathToUsers photo_path:text
+```
+
+### Model
+
+In your model, `serialize` the column
+
+``` ruby
+class User < ActiveRecord::Base
+  serialize :photo_path, JSON
+end
+```
+
+### New or Edit form
+
+In your form, you would add some options to `file_field` using the `attache_options` helper method. For example, a regular file field may look like this:
+
+``` slim
+= f.file_field :photo_path
+```
+
+Change it to
+
+``` slim
+= f.file_field :photo_path, **attache_options('64x64#', f.object.photo_path)
+```
+
+Or if you're expecting multiple files uploaded, simply add `multiple: true`
+
+``` slim
+= f.file_field :photo_path, multiple: true, **attache_options('64x64#', f.object.photo_path)
+```
+
+NOTE: `64x64#` is just an example, you should define a suitable [geometry](http://www.imagemagick.org/Usage/resize/) for your form
+
+### Show
+
+Use the `attache_urls` helper to obtain full urls for the values you've captured in your database.
+
+``` slim
+- attache_urls(@user.photo_path, '128x128#') do |url|
+  = image_tag(url)
+```
+
+Alternatively, you can get the list of urls and manipulate it however you want
+
+``` slim
+= image_tag attache_urls(@user.photo_path, '128x128#').sample
+```
+
+# License
+
+MIT

Rakefile

@@ -0,0 +1 @@
+require "bundler/gem_tasks"

app/assets/javascripts/attache.js

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+//= require attache/cors_upload
+//= require attache/bootstrap3
+//= require attache/ujs

app/assets/javascripts/attache/bootstrap3.js

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+var AttacheFileInput = React.createClass({displayName: "AttacheFileInput",
+
+  getInitialState: function() {
+    var files = {};
+    var array = ([].concat(JSON.parse(this.props['data-value'])));
+    $.each(array, function(uid, json) {
+      if (json) files[uid] = { path: json };
+    });
+    return {files: files};
+  },
+
+  onRemove: function(uid, e) {
+    delete this.state.files[uid];
+    this.setState(this.state);
+    e.preventDefault();
+    e.stopPropagation();
+  },
+
+  onChange: function() {
+    var file_element = this.getDOMNode().firstChild;
+    // user cancelled file chooser dialog. ignore
+    if (file_element.files.length == 0) return;
+    this.state.files = {};
+    this.setState(this.state);
+    // upload the file via CORS
+    new CORSUpload({
+      file_element: file_element, onComplete: this.setFileValue, onProgress: this.setFileValue,
+      onError: function(uid, status) { alert(status); }
+    });
+    // we don't want the file binary to be uploaded in the main form
+    file_element.value = '';
+  },
+
+  setFileValue: function(key, value) {
+    this.state.files[key] = value;
+    this.setState(this.state);
+  },
+
+  render: function() {
+    var that = this;
+    var previews = [];
+    $.each(that.state.files, function(key, result) {
+      var json = JSON.stringify(result);
+      if (result.path) {
+        var parts = result.path.split('/');
+        parts.splice(parts.length-1, 0, encodeURIComponent(that.props['data-geometry'] || '128x128#'));
+        result.src = that.props['data-downloadurl'] + '/' + parts.join('/');
+      }
+      previews.push(
+        React.createElement("div", {className: "thumbnail"}, 
+          React.createElement("input", {type: "hidden", name: that.props.name, value: result.path, readOnly: "true"}), 
+          React.createElement(AttacheFilePreview, React.__spread({},  result, {key: key, onRemove: that.onRemove.bind(that, key)}))
+        )
+      );
+    });
+    return (
+      React.createElement("label", {htmlFor: this.props.id, className: "attache-file-selector"}, 
+        React.createElement("input", React.__spread({type: "file"},  this.props, {onChange: this.onChange})), 
+        previews
+      )
+    );
+  }
+});
+
+var AttacheFilePreview = React.createClass({displayName: "AttacheFilePreview",
+
+  getInitialState: function() {
+    return { srcWas: '' };
+  },
+
+  removeProgressBar: function() {
+    this.setState({ srcWas: this.props.src });
+  },
+
+  render: function() {
+    var className = "progress-bar progress-bar-striped active" + (this.props.src ? " progress-bar-success" : "");
+    var pctString = (this.props.src ? 100 : this.props.percentLoaded) + "%";
+    var pctDesc   = (this.props.src ? 'Loading...' : pctString);
+    var img       = (this.props.src ? (React.createElement("img", {src: this.props.src, onLoad: this.removeProgressBar})) : '');
+    var pctStyle  = { width: pctString, minWidth: '3em' };
+    var cptStyle  = { textOverflow: "ellipsis" };
+    var caption   = React.createElement("div", {className: "pull-left", style: cptStyle}, this.props.filename || this.props.path.split('/').pop());
+
+    if (this.state.srcWas != this.props.src) {
+      var progress = (
+        React.createElement("div", {className: "progress"}, 
+          React.createElement("div", {className: className, role: "progressbar", "aria-valuenow": this.props.percentLoaded, "aria-valuemin": "0", "aria-valuemax": "100", style: pctStyle}, 
+            pctDesc
+          )
+        )
+      );
+    }
+
+    return (
+      React.createElement("div", {className: "attache-file-preview"}, 
+        progress, 
+        img, 
+        React.createElement("div", {className: "clearfix"}, 
+          caption, 
+          React.createElement("a", {href: "#remove", className: "pull-right", onClick: this.props.onRemove, title: "Click to remove"}, "×")
+        )
+      )
+    );
+  }
+});

app/assets/javascripts/attache/bootstrap3.js.jsx

@@ -0,0 +1,105 @@
+var AttacheFileInput = React.createClass({
+
+  getInitialState: function() {
+    var files = {};
+    var array = ([].concat(JSON.parse(this.props['data-value'])));
+    $.each(array, function(uid, json) {
+      if (json) files[uid] = { path: json };
+    });
+    return {files: files};
+  },
+
+  onRemove: function(uid, e) {
+    delete this.state.files[uid];
+    this.setState(this.state);
+    e.preventDefault();
+    e.stopPropagation();
+  },
+
+  onChange: function() {
+    var file_element = this.getDOMNode().firstChild;
+    // user cancelled file chooser dialog. ignore
+    if (file_element.files.length == 0) return;
+    this.state.files = {};
+    this.setState(this.state);
+    // upload the file via CORS
+    new CORSUpload({
+      file_element: file_element, onComplete: this.setFileValue, onProgress: this.setFileValue,
+      onError: function(uid, status) { alert(status); }
+    });
+    // we don't want the file binary to be uploaded in the main form
+    file_element.value = '';
+  },
+
+  setFileValue: function(key, value) {
+    this.state.files[key] = value;
+    this.setState(this.state);
+  },
+
+  render: function() {
+    var that = this;
+    var previews = [];
+    $.each(that.state.files, function(key, result) {
+      var json = JSON.stringify(result);
+      if (result.path) {
+        var parts = result.path.split('/');
+        parts.splice(parts.length-1, 0, encodeURIComponent(that.props['data-geometry'] || '128x128#'));
+        result.src = that.props['data-downloadurl'] + '/' + parts.join('/');
+      }
+      previews.push(
+        <div className="thumbnail">
+          <input type="hidden" name={that.props.name} value={result.path} readOnly="true" />
+          <AttacheFilePreview {...result} key={key} onRemove={that.onRemove.bind(that, key)}/>
+        </div>
+      );
+    });
+    return (
+      <label htmlFor={this.props.id} className="attache-file-selector">
+        <input type="file" {...this.props} onChange={this.onChange}/>
+        {previews}
+      </label>
+    );
+  }
+});
+
+var AttacheFilePreview = React.createClass({
+
+  getInitialState: function() {
+    return { srcWas: '' };
+  },
+
+  removeProgressBar: function() {
+    this.setState({ srcWas: this.props.src });
+  },
+
+  render: function() {
+    var className = "progress-bar progress-bar-striped active" + (this.props.src ? " progress-bar-success" : "");
+    var pctString = (this.props.src ? 100 : this.props.percentLoaded) + "%";
+    var pctDesc   = (this.props.src ? 'Loading...' : pctString);
+    var img       = (this.props.src ? (<img src={this.props.src} onLoad={this.removeProgressBar} />) : '');
+    var pctStyle  = { width: pctString, minWidth: '3em' };
+    var cptStyle  = { textOverflow: "ellipsis" };
+    var caption   = <div className="pull-left" style={cptStyle}>{this.props.filename || this.props.path.split('/').pop()}</div>;
+
+    if (this.state.srcWas != this.props.src) {
+      var progress = (
+        <div className="progress">
+          <div className={className} role="progressbar" aria-valuenow={this.props.percentLoaded} aria-valuemin="0" aria-valuemax="100" style={pctStyle}>
+            {pctDesc}
+          </div>
+        </div>
+      );
+    }
+
+    return (
+      <div className="attache-file-preview">
+        {progress}
+        {img}
+        <div className="clearfix">
+          {caption}
+          <a href="#remove" className="pull-right" onClick={this.props.onRemove} title="Click to remove">&times;</a>
+        </div>
+      </div>
+    );
+  }
+});