| # coding: utf-8 | |
| from objc_util import * | |
| import canvas | |
| import os | |
| def save_canvas_to_png(filename): | |
| rootVC = UIApplication.sharedApplication().keyWindow().rootViewController() | |
| image=rootVC.accessoryViewController().consoleViewController().canvasImageView().image() | |
| if image: | |
| data=ObjCInstance(c.UIImagePNGRepresentation(image)) | |
| data.writeToFile_atomically_(os.path.abspath(filename),True) |
| from objc_util import * | |
| import time | |
| import notification | |
| APP=UIApplication.sharedApplication() | |
| DISPLAYMODE=0 | |
| def setBadge(text): | |
| APP.setApplicationBadgeString_(text) |
| # coding: utf-8 | |
| ''' | |
| Manipulate action (wrench) menu | |
| example: | |
| add_action('/stash/launch_stash.py','monitor') | |
| save_defaults() # so it is stored for next launch | |
| ''' | |
| from objc_util import * |
| import appex, bs4, dialogs, urllib2, webbrowser | |
| if appex.is_running_extension(): | |
| starturl = appex.get_url() | |
| else: | |
| #ask for video url | |
| starturl = dialogs.form_dialog(fields=[{'type':'url', 'title':'URL:', 'key':'url'}])['url'] | |
| #handle redirects, in case of shortened url | |
| url = urllib2.urlopen(urllib2.Request(starturl)).geturl() | |
| #keepvid page url | |
| url = 'http://www.keepvid.com/?url='+url.split('&feature')[0] |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent| # coding: utf-8 | |
| ''' | |
| NOTE: This requires the latest beta of Pythonista 1.6 (build 160022) | |
| Demo of a custom ui.View subclass that embeds a native map view using MapKit (via objc_util). Tap and hold the map to drop a pin. | |
| The MapView class is designed to be reusable, but it doesn't implement *everything* you might need. I hope that the existing methods give you a basic idea of how to add new capabilities though. For reference, here's Apple's documentation about the underlying MKMapView class: http://developer.apple.com/library/ios/documentation/MapKit/reference/MKMapView_Class/index.html | |
| If you make any changes to the OMMapViewDelegate class, you need to restart the app. Because this requires creating a new Objective-C class, the code can basically only run once per session (it's not safe to delete an Objective-C class at runtime as long as instances of the class potentially exist). | |
| ''' |
Note: This will be a contrived example, but hopefully illustrates some real-world trade-offs.
Example scenario: Suppose you're an independent web developer, and a client asks you to prototype a redesign of their website header. You'll be paid for your time, and if the client likes it, you'll be hired to do the full implementation. Your incentive is to show the client a quick, functional demo of the updated header. The problem is that quick and functional tend to be mutually-exclusive.
I fell in love with CoffeeScript a couple of years ago. Javascript has always seemed something of an interesting curiosity to me and I was happy to see the meteoric rise of Node.js, but coming from a background of Python I really preferred a cleaner syntax.
In any fast moving community it is inevitable that things will change, and so today we see a big shift toward ES6, the new version of Javascript. It incorporates a handful of the nicer features from CoffeeScript and is usable today through tools like Babel. Here are some of my thoughts and issues on moving away from CoffeeScript in favor of ES6.
While reading I suggest keeping open a tab to Babel's learning ES6 page. The examples there are great.
Holy punctuation, Batman! Say goodbye to your whitespace and hello to parenthesis, curly braces, and semicolons again. Even with the advanced ES6 syntax you'll find yourself writing a lot more punctuatio
| /////////////////////////////////////////////////////////// | |
| // Plain SASS Trigonometry Algorithm in Taylor Expansion // | |
| // // | |
| // Based on // | |
| // http://japborst.net/posts/sass-sines-and-cosines // | |
| /////////////////////////////////////////////////////////// | |
| $pi: 3.14159265359; | |
| $_precision: 10; |
This gist assumes:
