screencap-server.py

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# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this

# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# This is a little HTTP server that runs "screencap" on the connected

# Android device via "adb shell". This allows the Android device

# itself to trigger "screencap" via HTTP.

# We are running emulators without "-gpu off" and with that we are not

# able to take screenshots via UIAutomator. Other ways of taking

# screenshots from the Android device itself do not capture the full

# screen as the user sees it.

from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer

from os import curdir, sep

import subprocess

class ScreenshotHandler(BaseHTTPRequestHandler):

    def do_GET(self):

        self.send_response(200)

        self.send_header('Content-type', 'text/plain')

        self.end_headers()

    	print " * Taking screenshot"

        command = "adb shell screencap -p /data/data/org.mozilla.tv.firefox.debug/files/temp_screen.png"

        process = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE)

        process.wait()

        self.wfile.write("screenshot, exit=" + str(process.returncode))

        print " * Done ( exit = ", process.returncode, ")"

if __name__ == "__main__":

    httpd = HTTPServer(('0.0.0.0', 9771), ScreenshotHandler)

    print 'Starting httpd...'

    httpd.serve_forever()