gecko-dev/dom/midi/MIDIAccessManager.h
Gabriele Svelto ace6d1063f Bug 1600545 - Remove useless inclusions of header files generated from IDL files in dom/ r=Ehsan
The inclusions were removed with the following very crude script and the
resulting breakage was fixed up by hand. The manual fixups did either
revert the changes done by the script, replace a generic header with a more
specific one or replace a header with a forward declaration.

find . -name "*.idl" | grep -v web-platform | grep -v third_party | while read path; do
    interfaces=$(grep "^\(class\|interface\).*:.*" "$path" | cut -d' ' -f2)
    if [ -n "$interfaces" ]; then
        if [[ "$interfaces" == *$'\n'* ]]; then
          regexp="\("
          for i in $interfaces; do regexp="$regexp$i\|"; done
          regexp="${regexp%%\\\|}\)"
        else
          regexp="$interfaces"
        fi
        interface=$(basename "$path")
        rg -l "#include.*${interface%%.idl}.h" . | while read path2; do
            hits=$(grep -v "#include.*${interface%%.idl}.h" "$path2" | grep -c "$regexp" )
            if [ $hits -eq 0 ]; then
                echo "Removing ${interface} from ${path2}"
                grep -v "#include.*${interface%%.idl}.h" "$path2" > "$path2".tmp
                mv -f "$path2".tmp "$path2"
            fi
        done
    fi
done

Differential Revision: https://phabricator.services.mozilla.com/D55442

--HG--
extra : moz-landing-system : lando
2019-12-06 09:24:56 +00:00

76 lines
2.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_MIDIAccessManager_h
#define mozilla_dom_MIDIAccessManager_h
#include "nsPIDOMWindow.h"
#include "mozilla/dom/MIDITypes.h"
#include "mozilla/Observer.h"
namespace mozilla {
namespace dom {
class MIDIAccess;
class MIDIManagerChild;
struct MIDIOptions;
class MIDIPortChangeEvent;
class MIDIPortInfo;
class Promise;
/**
* MIDIAccessManager manages creation and lifetime of MIDIAccess objects for the
* process it lives in. It is in charge of dealing with permission requests,
* creating new MIDIAccess objects, and updating live MIDIAccess objects with
* new device listings.
*
* While a process/window can have many MIDIAccess objects, there is only one
* MIDIAccessManager for any one process.
*/
class MIDIAccessManager final {
public:
NS_INLINE_DECL_REFCOUNTING(MIDIAccessManager);
// Handles requests from Navigator for MIDI permissions and MIDIAccess
// creation.
already_AddRefed<Promise> RequestMIDIAccess(nsPIDOMWindowInner* aWindow,
const MIDIOptions& aOptions,
ErrorResult& aRv);
// Creates a new MIDIAccess object
void CreateMIDIAccess(nsPIDOMWindowInner* aWindow, bool aNeedsSysex,
Promise* aPromise);
// Getter for manager singleton
static MIDIAccessManager* Get();
// True if manager singleton has been created
static bool IsRunning();
// Send device connection updates to all known MIDIAccess objects.
void Update(const MIDIPortList& aEvent);
// Adds a device update observer (usually a MIDIAccess object)
bool AddObserver(Observer<MIDIPortList>* aObserver);
// Removes a device update observer (usually a MIDIAccess object)
void RemoveObserver(Observer<MIDIPortList>* aObserver);
private:
MIDIAccessManager();
~MIDIAccessManager();
// True if object has received a device list from the MIDI platform service.
bool mHasPortList;
// List of known ports for the system.
MIDIPortList mPortList;
// Holds MIDIAccess objects until we've received the first list of devices
// from the MIDI Service.
nsTArray<RefPtr<MIDIAccess>> mAccessHolder;
// Device state update observers (usually MIDIAccess objects)
ObserverList<MIDIPortList> mChangeObservers;
// IPC Object for MIDIManager. Created on first MIDIAccess object creation,
// destroyed on last MIDIAccess object destruction.
RefPtr<MIDIManagerChild> mChild;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_MIDIAccessManager_h