/*

 * Copyright (C) 2010 Google Inc. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are

 * met:

 *

 *     * Redistributions of source code must retain the above copyright

 * notice, this list of conditions and the following disclaimer.

 *     * Redistributions in binary form must reproduce the above

 * copyright notice, this list of conditions and the following disclaimer

 * in the documentation and/or other materials provided with the

 * distribution.

 *     * Neither the name of Google Inc. nor the names of its

 * contributors may be used to endorse or promote products derived from

 * this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#include "config.h"

#include "TestShell.h"

#include "webkit/support/webkit_support.h"

#include <fontconfig/fontconfig.h>

#include <signal.h>

static void AlarmHandler(int signatl)

{

    // If the alarm alarmed, kill the process since we have a really bad hang.

    puts("\n#TEST_TIMED_OUT\n");

    puts("#EOF\n");

    fflush(stdout);

    exit(0);

}

static void setupFontconfig()

{

    // We wish to make the layout tests reproducable with respect to fonts. Skia

    // uses fontconfig to resolve font family names from WebKit into actual font

    // files found on the current system. This means that fonts vary based on the

    // system and also on the fontconfig configuration.

    //

    // To avoid this we initialise fontconfig here and install a configuration

    // which only knows about a few, select, fonts.

    // We have fontconfig parse a config file from our resources file. This

    // sets a number of aliases ("sans"->"Arial" etc), but doesn't include any

    // font directories.

    FcInit();

    char drtPath[PATH_MAX + 1];

    int drtPathSize = readlink("/proc/self/exe", drtPath, PATH_MAX);

    if (drtPathSize < 0 || drtPathSize > PATH_MAX) {

        fputs("Unable to resolve /proc/self/exe.", stderr);

        exit(1);

    }

    drtPath[drtPathSize] = 0;

    std::string drtDirPath(drtPath);

    size_t lastPathPos = drtDirPath.rfind("/");

    ASSERT(lastPathPos != std::string::npos);

    drtDirPath.erase(lastPathPos + 1);

    FcConfig* fontcfg = FcConfigCreate();

    std::string fontconfigPath = drtDirPath + "fonts.conf";

    if (!FcConfigParseAndLoad(fontcfg, reinterpret_cast<const FcChar8*>(fontconfigPath.c_str()), true)) {

        fputs("Failed to parse fontconfig config file\n", stderr);

        exit(1);

    }

    // This is the list of fonts that fontconfig will know about. It

    // will try its best to match based only on the fonts here in. The

    // paths are where these fonts are found on our Ubuntu boxes.

    static const char *const fonts[] = {

        "/usr/share/fonts/truetype/kochi/kochi-gothic.ttf",

        "/usr/share/fonts/truetype/kochi/kochi-mincho.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Arial.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Arial_Bold.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Arial_Bold_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Arial_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Comic_Sans_MS.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Comic_Sans_MS_Bold.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Courier_New.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Courier_New_Bold.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Courier_New_Bold_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Courier_New_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Georgia.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Georgia_Bold.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Georgia_Bold_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Georgia_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Impact.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS_Bold.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS_Bold_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Times_New_Roman.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Times_New_Roman_Bold.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Times_New_Roman_Bold_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Times_New_Roman_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Verdana.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Verdana_Bold.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Verdana_Bold_Italic.ttf",

        "/usr/share/fonts/truetype/msttcorefonts/Verdana_Italic.ttf",

        // The DejaVuSans font is used by the css2.1 tests.

        "/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf",

        "/usr/share/fonts/truetype/ttf-indic-fonts-core/lohit_ta.ttf",

        "/usr/share/fonts/truetype/ttf-indic-fonts-core/MuktiNarrow.ttf",

    };

    for (size_t i = 0; i < arraysize(fonts); ++i) {

        if (access(fonts[i], R_OK)) {

            fprintf(stderr, "You are missing %s. Try installing msttcorefonts. Also see "

                            "http://code.google.com/p/chromium/wiki/LinuxBuildInstructions",

                            fonts[i]);

            exit(1);

        }

        if (!FcConfigAppFontAddFile(fontcfg, (FcChar8 *) fonts[i])) {

            fprintf(stderr, "Failed to load font %s\n", fonts[i]);

            exit(1);

        }

    }

    // We special case these fonts because they're only needed in a

    // few layout tests.

    static const char* const optionalFonts[] = {

        "/usr/share/fonts/truetype/ttf-lucida/LucidaSansRegular.ttf",

        // This font changed paths across Ubuntu releases.

        "/usr/share/fonts/truetype/ttf-indic-fonts-core/lohit_pa.ttf",

        "/usr/share/fonts/truetype/ttf-punjabi-fonts/lohit_pa.ttf",

    };

    for (size_t i = 0; i < arraysize(optionalFonts); ++i) {

        const char* font = optionalFonts[i];

        if (access(font, R_OK) < 0) {

            fprintf(stderr, "You are missing %s. Without this, some layout tests may fail. "

                            "See http://code.google.com/p/chromium/wiki/LinuxBuildInstructionsPrerequisites "

                            "for more.\n", font);

        } else {

            if (!FcConfigAppFontAddFile(fontcfg, (FcChar8 *) font)) {

                fprintf(stderr, "Failed to load font %s\n", font);

                exit(1);

            }

        }

    }

    // Also load the layout-test-specific "Ahem" font.

    std::string ahemPath = drtDirPath + "AHEM____.TTF";

    if (!FcConfigAppFontAddFile(fontcfg, reinterpret_cast<const FcChar8*>(ahemPath.c_str()))) {

        fprintf(stderr, "Failed to load font %s\n", ahemPath.c_str());

        exit(1);

    }

    if (!FcConfigSetCurrent(fontcfg)) {

        fputs("Failed to set the default font configuration\n", stderr);

        exit(1);

    }

}

void TestShell::waitTestFinished()

{

    ASSERT(!m_testIsPending);

    m_testIsPending = true;

    // Install an alarm signal handler that will kill us if we time out.

    signal(SIGALRM, AlarmHandler);

    alarm(layoutTestTimeoutForWatchDog() / 1000);

    // TestFinished() will post a quit message to break this loop when the page

    // finishes loading.

    while (m_testIsPending)

        webkit_support::RunMessageLoop();

    // Remove the alarm.

    alarm(0);

    signal(SIGALRM, SIG_DFL);

}

void platformInit()

{

    setupFontconfig();

}