7419a72383
SharedXDisplay has to handle X events because the events may belong to different clients of that class. R=wez@chromium.org Review URL: https://webrtc-codereview.appspot.com/2386004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@4953 4adac7df-926f-26a2-2b94-8c16560cd09d
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_X11_SHARED_X_DISPLAY_H_
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#define WEBRTC_MODULES_DESKTOP_CAPTURE_X11_SHARED_X_DISPLAY_H_
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#include <map>
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#include <vector>
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#include <assert.h>
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#include <X11/Xlib.h>
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#include <string>
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#include "webrtc/system_wrappers/interface/atomic32.h"
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#include "webrtc/system_wrappers/interface/scoped_refptr.h"
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namespace webrtc {
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// A ref-counted object to store XDisplay connection.
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class SharedXDisplay {
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public:
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class XEventHandler {
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public:
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virtual ~XEventHandler() {}
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// Processes XEvent. Returns true if the event has been handled.
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virtual bool HandleXEvent(const XEvent& event) = 0;
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};
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// Takes ownership of |display|.
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explicit SharedXDisplay(Display* display);
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// Creates a new X11 Display for the |display_name|. NULL is returned if X11
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// connection failed. Equivalent to CreateDefault() when |display_name| is
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// empty.
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static scoped_refptr<SharedXDisplay> Create(const std::string& display_name);
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// Creates X11 Display connection for the default display (e.g. specified in
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// DISPLAY). NULL is returned if X11 connection failed.
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static scoped_refptr<SharedXDisplay> CreateDefault();
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void AddRef() { ++ref_count_; }
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void Release() {
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if (--ref_count_ == 0)
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delete this;
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}
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Display* display() { return display_; }
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// Adds a new event |handler| for XEvent's of |type|.
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void AddEventHandler(int type, XEventHandler* handler);
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// Removes event |handler| added using |AddEventHandler|. Doesn't do anything
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// if |handler| is not registered.
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void RemoveEventHandler(int type, XEventHandler* handler);
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// Processes pending XEvents, calling corresponding event handlers.
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void ProcessPendingXEvents();
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private:
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typedef std::map<int, std::vector<XEventHandler*> > EventHandlersMap;
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~SharedXDisplay();
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Atomic32 ref_count_;
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Display* display_;
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EventHandlersMap event_handlers_;
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DISALLOW_COPY_AND_ASSIGN(SharedXDisplay);
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_DESKTOP_CAPTURE_X11_SHARED_X_DISPLAY_H_
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