134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
// Copyright (c) 2018 Marshall A. Greenblatt. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the name Chromium Embedded
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// Framework nor the names of its contributors may be used to endorse
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// or promote products derived from this software without specific prior
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// written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef CEF_INCLUDE_WRAPPER_CEF_LIBRARY_LOADER_H_
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#define CEF_INCLUDE_WRAPPER_CEF_LIBRARY_LOADER_H_
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#pragma once
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#include "include/base/cef_build.h"
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#ifdef __cplusplus
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#include <string>
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extern "C" {
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#endif // __cplusplus
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///
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/// Load the CEF library at the specified |path|. Returns true (1) on
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/// success and false (0) on failure.
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///
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int cef_load_library(const char* path);
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///
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/// Unload the CEF library that was previously loaded. Returns true (1)
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/// on success and false (0) on failure.
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///
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int cef_unload_library(void);
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#ifdef __cplusplus
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}
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#if defined(OS_MAC)
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///
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/// Scoped helper for loading and unloading the CEF framework library at
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/// runtime from the expected location in the app bundle. Loading at runtime
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/// instead of linking directly is a requirement of the macOS sandbox
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/// implementation.
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///
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/// Example usage in the main process:
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///
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/// <pre>
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/// #include "include/wrapper/cef_library_loader.h"
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///
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/// int main(int argc, char* argv[]) {
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/// // Dynamically load the CEF framework library.
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/// CefScopedLibraryLoader library_loader;
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/// if (!library_loader.LoadInMain())
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/// return 1;
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///
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/// // Continue with CEF initialization...
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/// }
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/// </pre>
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///
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/// Example usage in the helper process:
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///
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/// <pre>
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/// #include "include/cef_sandbox_mac.h"
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/// #include "include/wrapper/cef_library_loader.h"
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///
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/// int main(int argc, char* argv[]) {
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/// // Initialize the macOS sandbox for this helper process.
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/// CefScopedSandboxContext sandbox_context;
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/// if (!sandbox_context.Initialize(argc, argv))
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/// return 1;
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///
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/// // Dynamically load the CEF framework library.
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/// CefScopedLibraryLoader library_loader;
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/// if (!library_loader.LoadInHelper())
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/// return 1;
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///
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/// // Continue with CEF initialization...
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/// }
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/// </pre>
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///
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class CefScopedLibraryLoader {
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public:
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CefScopedLibraryLoader();
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CefScopedLibraryLoader(const CefScopedLibraryLoader&) = delete;
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CefScopedLibraryLoader& operator=(const CefScopedLibraryLoader&) = delete;
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~CefScopedLibraryLoader();
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///
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/// Load the CEF framework in the main process from the expected app
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/// bundle location relative to the executable. Returns true if the
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/// load succeeds.
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///
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bool LoadInMain() { return Load(false); }
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///
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/// Load the CEF framework in the helper process from the expected app
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/// bundle location relative to the executable. Returns true if the
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/// load succeeds.
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///
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bool LoadInHelper() { return Load(true); }
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private:
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bool Load(bool helper);
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bool loaded_;
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};
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#endif // defined(OS_MAC)
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#endif // __cplusplus
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#endif // CEF_INCLUDE_WRAPPER_CEF_LIBRARY_LOADER_H_
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