author Kartikaya Gupta <>
Tue, 23 May 2017 10:50:42 -0400
changeset 408330 fa1a20ec07bfb15ddb9101853ad0cedde28ad7a7
parent 337400 68da139d0866977c0ada86319fa94388f2255446
child 441900 828d43ec1b16edaac69c42f15561f26e209051f1
permissions -rw-r--r--
Bug 1364525 - Update APIs to allow APZ to produce scrollbar transforms. r=pchang,botond This allows the APZCTreeManager::PushStateToWR function to also produce a set of transforms to be applied to scrollbar thumbs. The PushStateToWR function will be updated in the next patch to actually produce the transforms. This patch also rearranges code in WebRenderBridgeParent::CompositeToTarget so that either OMTA or APZ can produce animation updates. MozReview-Commit-ID: 1ghvVG32TC5

# 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
from __future__ import print_function
import os, re, string, sys
from mozbuild.util import FileAvoidWrite

def find_in_path(file, searchpath):
    for dir in searchpath.split(os.pathsep):
        f = os.path.join(dir, file)
        if os.path.exists(f):
            return f
    return ''

def header_path(header, compiler):
    if compiler == 'gcc':
        # we use include_next on gcc
        return header
    elif compiler == 'msvc':
        return find_in_path(header, os.environ.get('INCLUDE', ''))
        # hope someone notices this ...
        raise NotImplementedError(compiler)

def is_comment(line):
    return re.match(r'\s*#.*', line)

def main(outdir, compiler, template_file, header_list_file):
    if not os.path.isdir(outdir):

    template = open(template_file, 'r').read()

    for header in open(header_list_file, 'r'):
        header = header.rstrip()
        if 0 == len(header) or is_comment(header):

        path = header_path(header, compiler)
        with FileAvoidWrite(os.path.join(outdir, header)) as f:

if __name__ == '__main__':
    if 5 != len(sys.argv):
  python {0} OUT_DIR ('msvc'|'gcc') TEMPLATE_FILE HEADER_LIST_FILE
""".format(sys.argv[0]), file=sys.stderr)