// Copyright (c) 2013 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.

#include "CEF/HumanAppBrowser.h"

#include <string>

#include "HumanAppContext.h"
#include "include/cef_browser.h"
#include "include/cef_command_line.h"
#include "include/views/cef_browser_view.h"
#include "include/views/cef_window.h"
#include "include/wrapper/cef_helpers.h"
#include "include/cef_crash_util.h"
#include "include/cef_file_util.h"

#include "CEF/HumanAppSwitches.h"


class HumanAppBrowserDelegate : public HumanAppBrowser::Delegate {
public:
    HumanAppBrowserDelegate() = default;

    void OnContextInitialized(CefRefPtr<HumanAppBrowser> app) override {
        if (CefCrashReportingEnabled()) {
            // Set some crash keys for testing purposes. Keys must be defined in the
            // "crash_reporter.cfg" file. See cef_crash_util.h for details.
            CefSetCrashKeyValue("testkey_small1", "value1_small_browser");
            CefSetCrashKeyValue("testkey_small2", "value2_small_browser");
            CefSetCrashKeyValue("testkey_medium1", "value1_medium_browser");
            CefSetCrashKeyValue("testkey_medium2", "value2_medium_browser");
            CefSetCrashKeyValue("testkey_large1", "value1_large_browser");
            CefSetCrashKeyValue("testkey_large2", "value2_large_browser");
        }

        const std::string& crl_sets_path =
            CefCommandLine::GetGlobalCommandLine()->GetSwitchValue(
                kCRLSetsPath);
        if (!crl_sets_path.empty()) {
            // Load the CRLSets file from the specified path.
            CefLoadCRLSetsFile(crl_sets_path);
        }
    }

    void OnBeforeCommandLineProcessing(
        CefRefPtr<HumanAppBrowser> app,
        CefRefPtr<CefCommandLine> command_line) override {
        // Append Chromium command line parameters if touch events are enabled
        if (HumanAppContext::Get()->TouchEventsEnabled())
            command_line->AppendSwitchWithValue("touch-events", "enabled");
    }

private:
    DISALLOW_COPY_AND_ASSIGN(HumanAppBrowserDelegate);
    IMPLEMENT_REFCOUNTING(HumanAppBrowserDelegate);
};



HumanAppBrowser::HumanAppBrowser() {
    delegates_.insert(new HumanAppBrowserDelegate);
}

// static
void HumanAppBrowser::PopulateSettings(CefRefPtr<CefCommandLine> command_line,
    CefSettings& settings) {
#if (defined(OS_WIN) || defined(OS_LINUX))
    settings.multi_threaded_message_loop =
        command_line->HasSwitch(kMultiThreadedMessageLoop);
#endif

    if (!settings.multi_threaded_message_loop) {
        settings.external_message_pump =
            command_line->HasSwitch(kExternalMessagePump);
    }

    std::vector<std::string> cookieable_schemes;
    if (!cookieable_schemes.empty()) {
        std::string list_str;
        for (const auto& scheme : cookieable_schemes) {
            if (!list_str.empty())
                list_str += ",";
            list_str += scheme;
        }
        CefString(&settings.cookieable_schemes_list) = list_str;
    }
}

void HumanAppBrowser::OnBeforeCommandLineProcessing(
    const CefString& process_type,
    CefRefPtr<CefCommandLine> command_line) {
    // Pass additional command-line flags to the browser process.
    if (process_type.empty()) {
        // Pass additional command-line flags when off-screen rendering is enabled.
        if (command_line->HasSwitch(kOffScreenRenderingEnabled) &&
            !command_line->HasSwitch(kSharedTextureEnabled)) {
            // Use software rendering and compositing (disable GPU) for increased FPS
            // and decreased CPU usage. This will also disable WebGL so remove these
            // switches if you need that capability.
            // See https://bitbucket.org/chromiumembedded/cef/issues/1257 for details.
            if (!command_line->HasSwitch(kEnableGPU)) {
                command_line->AppendSwitch("disable-gpu");
                command_line->AppendSwitch("disable-gpu-compositing");
            }
        }

        if (command_line->HasSwitch(kUseViews) &&
            !command_line->HasSwitch("top-chrome-md")) {
            // Use non-material mode on all platforms by default. Among other things
            // this causes menu buttons to show hover state. See usage of
            // MaterialDesignController::IsModeMaterial() in Chromium code.
            command_line->AppendSwitchWithValue("top-chrome-md", "non-material");
        }

        if (!command_line->HasSwitch(kCachePath) &&
            !command_line->HasSwitch("disable-gpu-shader-disk-cache")) {
            // Don't create a "GPUCache" directory when cache-path is unspecified.
            command_line->AppendSwitch("disable-gpu-shader-disk-cache");
        }

        // Disable popup blocking for the chrome runtime.
        command_line->AppendSwitch("disable-popup-blocking");

#if defined(OS_MAC)
        // Disable the toolchain prompt on macOS.
        command_line->AppendSwitch("use-mock-keychain");
#endif

        DelegateSet::iterator it = delegates_.begin();
        for (; it != delegates_.end(); ++it)
            (*it)->OnBeforeCommandLineProcessing(this, command_line);
    }
}

void HumanAppBrowser::OnContextInitialized() {
    DelegateSet::iterator it = delegates_.begin();
    for (; it != delegates_.end(); ++it)
        (*it)->OnContextInitialized(this);
}

void HumanAppBrowser::OnBeforeChildProcessLaunch(
    CefRefPtr<CefCommandLine> command_line) {
    DelegateSet::iterator it = delegates_.begin();
    for (; it != delegates_.end(); ++it)
        (*it)->OnBeforeChildProcessLaunch(this, command_line);
}

void HumanAppBrowser::OnScheduleMessagePumpWork(int64 delay) {
    //// Only used when `--external-message-pump` is passed via the command-line.
    //MainMessageLoopExternalPump* message_pump =
    //    MainMessageLoopExternalPump::Get();
    //if (message_pump)
    //    message_pump->OnScheduleMessagePumpWork(delay);
}