dreemgl
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DreemGL is an open-source multi-screen prototyping framework for mediated environments, with a visual editor and shader styling for webGL and DALi runtimes written in JavaScript. As a toolkit for gpu-accelerated multiscreen development, DreemGL includes
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<td class="code"><pre><span class="comment">/* DreemGL is a collaboration between Teeming Society & Samsung Electronics, sponsored by Samsung and others.
Copyright 2015-2016 Teeming Society. Licensed under the Apache License, Version 2.0 (the "License"); You may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and limitations under the License.*/</span>
<span class="comment">/**
* @class FlickrLib
* Interface class between npm flickrapi and dreemgl
* Requires the flickr npm modules:
* 'npm install flickrapi'.
*/</span>
define.<span class="reserved">class</span>(<span class="keyword">function</span>(exports){
<span class="keyword">var</span> FlickrLib = exports
<span class="comment">// No credentials are stored in source. You must define them as an</span>
<span class="comment">// environment variable</span>
<span class="keyword">var</span> Flickr = require(<span class="string"><span class="delimiter">'</span><span class="content">flickrapi</span><span class="delimiter">'</span></span>)
<span class="comment">/**
* @method constructor
* Create a FlickrLib object with default parameters. The credentials
* are read from environment variables,
* FLICKR_KEY
* FLICKR_SECRET
* FLICKR_USER_ID
* FLICKR_ACCESS_TOKEN
* FLICKR_ACCESS_TOKEN_SECRET
*
* Install the flickr object via 'npm install flickrapi'.
* If you don't have the access tokens, you will be prompted to log into your
* flickr account and give permission.
*
* You can access the flickr npm object using this.flickr. It won't exist
* until authentication is finished.
*/</span>
<span class="comment">// Execute a flickr method(func), after authentication is complete.</span>
<span class="comment">// This can be immediate, or delayed if the flickr object does not exist yet.</span>
<span class="local-variable">this</span>.<span class="function">execute</span> = <span class="keyword">function</span>(func) {
<span class="keyword">if</span> (<span class="local-variable">this</span>.flickr) {
<span class="comment">// Already authenticated.</span>
func()
<span class="keyword">return</span>
}
<span class="comment">// Authenticate</span>
<span class="keyword">var</span> options = {
<span class="key">api_key</span>: process.env.FLICKR_KEY
,<span class="key">secret</span>: process.env.FLICKR_SECRET
,<span class="key">user_id</span>: process.env.FLICKR_USER_ID
,<span class="key">access_token</span>: process.env.FLICKR_ACCESS_TOKEN
,<span class="key">access_token_secret</span>: process.env.FLICKR_ACCESS_TOKEN_SECRET
,<span class="key">silent</span>: <span class="predefined-constant">true</span>
,<span class="key">progress</span>: <span class="predefined-constant">false</span>
}
<span class="keyword">var</span> self = <span class="local-variable">this</span>
Flickr.authenticate(options, <span class="keyword">function</span>(error, flickr) {
<span class="keyword">if</span> (error) {
<span class="local-variable">this</span>.autherror = error
console.log(<span class="string"><span class="delimiter">'</span><span class="content">flickr Auth error</span><span class="delimiter">'</span></span>, error)
<span class="keyword">return</span>
}
self.flickr = flickr
console.log(<span class="string"><span class="delimiter">"</span><span class="content">AUTH COMPLETE</span><span class="delimiter">"</span></span>)
func()
})
}
<span class="comment">// Search interface to retrieve images.</span>
<span class="comment">//</span>
<span class="comment">// cb Callback method which is passed the returned photos, as an array.</span>
<span class="comment">// options is a hash of search options. Default values to do a SF search.</span>
<span class="local-variable">this</span>.<span class="function">search</span> = <span class="keyword">function</span>(cb, options) {
<span class="keyword">if</span> (!<span class="local-variable">this</span>.flickr) {
<span class="keyword">if</span> (<span class="local-variable">this</span>.autherror) <span class="keyword">return</span>
<span class="keyword">var</span> self = <span class="local-variable">this</span>
<span class="keyword">var</span> func = (<span class="keyword">function</span>() {
self.search(cb, options)
}.bind(<span class="local-variable">this</span>))
<span class="local-variable">this</span>.execute(func)
<span class="keyword">return</span>
}
<span class="keyword">var</span> PAGE = <span class="integer">1</span>
<span class="comment">// Default options</span>
<span class="comment">// https://www.flickr.com/services/api/flickr.photos.search.html</span>
<span class="keyword">if</span> (!options) {
options = {
<span class="key">api_key</span> : process.env.FLICKR_KEY,
<span class="key">sort</span>: <span class="string"><span class="delimiter">'</span><span class="content">date-taken-desc</span><span class="delimiter">'</span></span>,
<span class="key">lat</span>: <span class="float">37.826664</span>, <span class="comment">// Alcatraz,</span>
<span class="key">lon</span>: -<span class="float">122.423012</span>,
<span class="key">radius</span>: <span class="integer">2</span>, <span class="comment">// 2 km,</span>
<span class="key">per_page</span>: <span class="integer">250</span>, <span class="comment">// Max per page,</span>
<span class="key">page</span>: PAGE,
<span class="key">extras</span>: <span class="string"><span class="delimiter">'</span><span class="content">geo, url_m, date_taken</span><span class="delimiter">'</span></span>,
<span class="key">min_taken_date</span>: <span class="string"><span class="delimiter">'</span><span class="content">2016-01-01</span><span class="delimiter">'</span></span>
}
}
<span class="local-variable">this</span>.flickr.photos.search(options, <span class="keyword">function</span>(err, result) {
<span class="comment">// Filter data to include only what we need.</span>
<span class="keyword">var</span> photos = result.photos.photo
<span class="keyword">var</span> _photos = []
<span class="keyword">for</span> (<span class="keyword">var</span> i = <span class="integer">0</span>; i < photos.length; i++) {
<span class="keyword">var</span> photo = photos[i]
<span class="keyword">var</span> url = photo.url_m
_photos.push({
<span class="key">url</span>: photo.url_m,
<span class="key">title</span>: photo.title,
<span class="key">width</span>: parseFloat(photo.width_m),
<span class="key">height</span>: parseFloat(photo.height_m),
<span class="key">latitude</span>: parseFloat(photo.latitude),
<span class="key">longitude</span>: parseFloat(photo.longitude),
<span class="key">date</span>: <span class="keyword">new</span> Date(photo.datetaken).getTime()
})
}
cb(_photos)
})
<span class="keyword">return</span>
}
})
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