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mojo/shell/context.h

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SHELL_CONTEXT_H_
+#define SHELL_CONTEXT_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "mojo/edk/embedder/process_delegate.h"
+#include "mojo/shell/application_manager/application_manager.h"
+#include "mojo/shell/task_runners.h"
+#include "mojo/shell/url_resolver.h"
+
+namespace mojo {
+namespace shell {
+
+class NativeApplicationLoader;
+
+// The "global" context for the shell's main process.
+class Context : public ApplicationManager::Delegate,
+                public embedder::ProcessDelegate {
+ public:
+  Context();
+  ~Context() override;
+
+  static void EnsureEmbedderIsInitialized();
+
+  // Point to the directory containing installed services, such as the network
+  // service. By default this directory is used as the base URL for resolving
+  // unknown mojo: URLs. The network service will be loaded from this directory,
+  // even when the base URL for unknown mojo: URLs is overridden.
+  void SetShellFileRoot(const base::FilePath& path);
+
+  // Resolve an URL relative to the shell file root. This is a nop for
+  // everything but relative file URLs or URLs without a scheme.
+  GURL ResolveShellFileURL(const std::string& path);
+
+  // Override the CWD, which is used for resolving file URLs passed in from the
+  // command line.
+  void SetCommandLineCWD(const base::FilePath& path);
+
+  // Resolve an URL relative to the CWD mojo_shell was invoked from. This is a
+  // nop for everything but relative file URLs or URLs without a scheme.
+  GURL ResolveCommandLineURL(const std::string& path);
+
+  // This must be called with a message loop set up for the current thread,
+  // which must remain alive until after Shutdown() is called. Returns true on
+  // success.
+  bool Init();
+
+  // If Init() was called and succeeded, this must be called before destruction.
+  void Shutdown();
+
+  void Run(const GURL& url);
+
+  TaskRunners* task_runners() { return task_runners_.get(); }
+  ApplicationManager* application_manager() { return &application_manager_; }
+  URLResolver* url_resolver() { return &url_resolver_; }
+
+ private:
+  class NativeViewportApplicationLoader;
+
+  // ApplicationManager::Delegate overrides.
+  GURL ResolveURL(const GURL& url) override;
+  GURL ResolveMappings(const GURL& url) override;
+
+  // ProcessDelegate implementation.
+  void OnShutdownComplete() override;
+
+  void OnApplicationEnd(const GURL& url);
+
+  std::set<GURL> app_urls_;
+  scoped_ptr<TaskRunners> task_runners_;
+  ApplicationManager application_manager_;
+  URLResolver url_resolver_;
+  GURL shell_file_root_;
+  GURL command_line_cwd_;
+
+  DISALLOW_COPY_AND_ASSIGN(Context);
+};
+
+}  // namespace shell
+}  // namespace mojo
+
+#endif  // SHELL_CONTEXT_H_