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pulseaudio: Change volume on scroll event

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Subscribe for mouse scroll events on the pulseaudio widget
and change volume when event is received.
Scroll up increments the volume and scroll down decrements it.
These events are only subscibed when there are no user defined
commands present for them.

Signed-off-by: Harish Krupo <harishkrupo@gmail.com>
This commit is contained in:
Harish Krupo
2018-10-29 21:48:35 +05:30
parent d7d1ebd736
commit 3e34137ac7
2 changed files with 91 additions and 16 deletions
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9
include/modules/pulseaudio.hpp
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@ -1,7 +1,8 @@
#pragma once
#include <pulse/pulseaudio.h>
#include <fmt/format.h>
#include <pulse/pulseaudio.h>
#include <pulse/volume.h>
#include <algorithm>
#include "ALabel.hpp"
@ -18,6 +19,8 @@ class Pulseaudio : public ALabel {
static void contextStateCb(pa_context*, void*);
static void sinkInfoCb(pa_context*, const pa_sink_info*, int, void*);
static void serverInfoCb(pa_context*, const pa_server_info*, void*);
static void volumeModifyCb(pa_context*, int, void*);
bool handleScroll(GdkEventScroll* e);
const std::string getPortIcon() const;
@ -26,9 +29,11 @@ class Pulseaudio : public ALabel {
pa_context* context_;
uint32_t sink_idx_{0};
uint16_t volume_;
pa_cvolume pa_volume_;
bool muted_;
std::string port_name_;
std::string desc_;
bool scrolling_;
};
}
} // namespace waybar::modules