third_party/skia/tools/skiaserve/urlhandlers/ClipAlphaHandler.cpp

/*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "tools/skiaserve/urlhandlers/UrlHandler.h"

#include "microhttpd.h"
#include "tools/skiaserve/Request.h"
#include "tools/skiaserve/Response.h"

using namespace Response;

bool ClipAlphaHandler::canHandle(const char* method, const char* url) {
    static const char* kBasePath = "/clipAlpha/";
    return 0 == strcmp(method, MHD_HTTP_METHOD_POST) &&
           0 == strncmp(url, kBasePath, strlen(kBasePath));
}

int ClipAlphaHandler::handle(Request* request, MHD_Connection* connection,
                             const char* url, const char* method,
                             const char* upload_data, size_t* upload_data_size) {
    SkTArray<SkString> commands;
    SkStrSplit(url, "/", &commands);

    if (!request->hasPicture() || commands.count() != 2) {
        return MHD_NO;
    }

    int alpha;
    sscanf(commands[1].c_str(), "%d", &alpha);

    request->fDebugCanvas->setClipVizColor(SkColorSetARGB(alpha, 0, 0, 0));
    return SendOK(connection);
}