什么是albert？

一款类似于Mac系统Spotlight搜索的软件

官方网站： https://albertlauncher.github.io/

代码仓库： https://github.com/albertlauncher/albert

安装

wget -nv https://download.opensuse.org/repositories/home:manuelschneid3r/xUbuntu_16.04/Release.key -O Release.key
sudo apt-key add - < Release.key
sudo apt-get update
sudo sh -c "echo 'deb http://download.opensuse.org/repositories/home:/manuelschneid3r/xUbuntu_16.04/ /' > /etc/apt/sources.list.d/albert.list"
sudo apt-get update
sudo apt-get install albert

修改配置文件

[General]
frontendId=org.albert.frontend.boxmodel.widgets
hotkey=Alt+Space
showTray=true
standsalone_note_shown=true
terminal=gnome-terminal -x

[org.albert.extension.applications]
enabled=true
fuzzy=true

[org.albert.extension.calculator]
enabled=true

[org.albert.extension.chromebookmarks]
enabled=true

[org.albert.extension.externalextensions]
enabled=true

[org.albert.extension.files]
enabled=true
filters=inode/directory, application/*, text/*, image/*
fuzzy=true

[org.albert.extension.firefoxbookmarks]
enabled=true
profile=Profile0

[org.albert.extension.hashgenerator]
enabled=true

[org.albert.extension.kvstore]
enabled=true

[org.albert.extension.mpris]
enabled=true

[org.albert.extension.ssh]
enabled=true

[org.albert.extension.system]
enabled=true

[org.albert.extension.terminal]
enabled=true

[org.albert.extension.websearch]
enabled=true

[org.albert.frontend.boxmodel.qml]
alwaysOnTop=true
hideOnClose=false
hideOnFocusLoss=true
showCentered=true
stylePath=/usr/share/albert/org.albert.frontend.boxmodel.qml/styles/BoxModel/MainComponent.qml
windowPosition=@Point(609 297)

[org.albert.frontend.boxmodel.widgets]
alwaysOnTop=true
clearOnHide=false
displayIcons=true
displayScrollbar=true
displayShadow=true
hideOnClose=false
hideOnFocusLoss=true
itemCount=10
showCentered=true
theme=Yosemite

添加switchapp插件

保存目录：

~/.local/share/albert/org.albert.extension.externalextensions/extensions/

文件内容：

#!/usr/bin/env python

import subprocess
import sys
import re
import os
import json
from ConfigParser import SafeConfigParser

"""
A window switcher that opens existing applications
requires: wmctrl
"""

albert_op = os.environ.get('ALBERT_OP')
APP_DIR = "/usr/share/applications/"
LOCAL_APP_DIR = os.path.expanduser("~/.local/share/applications/")

if albert_op == 'METADATA':
    metadata = """{
    "iid": "org.albert.extension.external/v3.0",
    "name": "WindowSwitcher",
    "version": "1.0",
    "author": "Klesh Wong",
    "dependencies": [],
    "trigger": "`"
    }"""
    print(metadata)
    sys.exit(0)

elif albert_op == 'QUERY':
    def parse_config_file(program):
        config_file = ""
        parts = program.split('.')

        for part in parts:
            if os.path.exists(APP_DIR + part + ".desktop"):
                config_file = APP_DIR + part + ".desktop"
                break

            if os.path.exists(LOCAL_APP_DIR + part + ".desktop"):
                config_file = LOCAL_APP_DIR + part + ".desktop"
                break

            part = part.lower()
            if os.path.exists(APP_DIR + part + ".desktop"):
                config_file = APP_DIR + part + ".desktop"
                break

            if os.path.exists(LOCAL_APP_DIR + part + ".desktop"):
                config_file = LOCAL_APP_DIR + part + ".desktop"
                break

        if config_file == "":
            return ["", ""]
        else:
            parser = SafeConfigParser()
            parser.read(config_file)
            return [parser.get("Desktop Entry", "Name"),
                    parser.get("Desktop Entry", "Icon")]

    albert_query = os.environ.get('ALBERT_QUERY')
    if albert_query:
        albert_query = albert_query[1:]

    process = subprocess.Popen(['wmctrl', '-lpx'], stdout=subprocess.PIPE)
    output, error = process.communicate()
    if error:
        print error
        sys.exit(1)
    items = []
    patt = re.compile(r'^(\w+)\s+(\d+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(.+)$')
    for line in output.split('\n'):
        match = patt.match(line)
        if not match:
            continue

        name, icon = parse_config_file(match.group(4))

        window_name = match.group(6)

        search_str = (name + " " + window_name).lower()

        if not name:
            name = window_name

        description = window_name

        if albert_query and albert_query not in search_str:
            continue

        item = {
            'id': match.group(1),
            'name': name,
            'icon': icon,
            'description': description,
            'completion': 'switched',
            'actions': [{
                'name': 'Activiate',
                'command': 'python',
                'arguments': [
                    __file__,
                    str(match.group(1))
                ]
            }]
        }

        items.append(item)

    resp = {
        'items': items
    }
    text = json.dumps(resp)
    print(text)

if len(sys.argv) > 1:
    window_id = sys.argv[1]
    subprocess.Popen(['wmctrl', '-ia', window_id])