ClipAlphaHandler.cpp

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/*
 * 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 "src/core/SkStringUtils.h"
#include "tools/skiaserve/Request.h"
#include "tools/skiaserve/Response.h"
 
using namespace skia_private;
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) {
    TArray<SkString> commands;
    SkStrSplit(url, "/", &commands);
 
    if (!request->hasPicture() || commands.size() != 2) {
        return MHD_NO;
    }
 
    int alpha;
    sscanf(commands[1].c_str(), "%d", &alpha);
 
    request->fDebugCanvas->setClipVizColor(SkColorSetARGB(alpha, 0, 0, 0));
    return SendOK(connection);
}