问题描述
我的音乐库有问题。 有些歌曲我无法播放，因为它们在本地找不到。 以下是我在播放特定歌曲时收到的错误消息示例：
这首歌……无法使用，因为找不到原始文件。你想找到它吗？
我只需按 Cancel 即可通过 Apple Music 服务匹配歌曲。
这样我就可以播放这首歌了。
这个问题已经讨论过 here，尽管不是以自动化的方式。因此，我想找到一个自动化的解决方案。
为此，我采用了通过播放每首歌曲来循环播放我的音乐库的方法。
默认情况下，如果找不到歌曲，脚本会自动跳到下一首歌曲。
但是，我希望脚本处理“找不到文件”错误并按 Cancel。
不幸的是，我目前的尝试不起作用：
-- Play first song in library (turn off shuffle and repeat)
set i to 4000 --number of songs in library
repeat while i > 0
tell application "Music" to play (next track)
tell application "System Events"
key code 53
end tell
set i to i - 1
end repeat
如何强制脚本处理这些弹出错误？
注意：如果您有任何建议，我也愿意接受任何其他更有效的解决方案。我决定不选择 Locate 选项，因为它需要更多时间，而且我会在稍后阶段从我的磁盘中删除任何未引用的歌曲。
解决方法
更新版本。以下脚本不会播放曲目，并在曲目损坏时以编程方式单击“取消”按钮。就像 OP 修复轨道手动工作流程所描述的那样：
tell application "Music"
activate -- required
tell source "Library"
repeat with nextTrack in tracks
try
with timeout of 2 seconds
set theResult to play (contents of nextTrack)
end timeout
theResult
on error
delay 1
tell application "System Events" to tell process "Music" to tell window 1 to if UI element "Cancel" exists then click UI element "Cancel"
end try
stop
end repeat
end tell
end tell
我可以提出脚本与手动方法不完全相同的两个原因：1）您需要在“告诉系统事件...”句子之后给出一些延迟。尝试使用不同的延迟值，2) Music.app 需要真正的鼠标点击，并将鼠标指针移动到“取消”按钮。在这种情况下，请尝试以下脚本：
use scripting additions
use framework "Foundation"
use framework "ApplicationServices"
use framework "Quartz"
use framework "AppKit"
property updateMouseCursorPosition : true
property buttonCount : 1 -- left mouse button number
property mouseButtonDown : true -- mouse button pressed?
set currentMousePosition to getCurrentMousePosition() -- get current cursor position on screen
--> {156,60}
set aPoint to current application's CGPointZero
set aPoint to {100,50} -- set the point coordinates on the screen
mouseLeftClick at aPoint -- perform left click and move the cursor to new position
tell application "Music"
activate -- required
tell source "Library"
repeat with nextTrack in tracks
try
with timeout of 2 seconds
set theResult to play (contents of nextTrack)
end timeout
theResult
on error
delay 1
tell application "System Events" to tell process "Music" to tell window 1
if UI element "Cancel" exists then
set aPoint to position of UI element "Cancel"
set aPoint to {20 + (item 1 of aPoint),10 + (item 2 of aPoint)}
mouseLeftClick of me at aPoint -- perform left click and move the cursor to new position
end if
end tell
end try
stop
end repeat
end tell
end tell
on getCurrentMousePosition()
-- Getting the screen resolution and the bottom bound
tell application "Finder" to set screen_resolution to bounds of window of desktop
set theBottom to item 4 of screen_resolution
-- Getting current mouse position {0,0} is top left corner of screen
set currentMousePosition to (current application's NSEvent's (mouseLocation)) as record
set x to currentMousePosition's x as integer
set y to theBottom - (currentMousePosition's y) as integer
return {x,y}
end getCurrentMousePosition
on setPoint(xPos,yPos)
set pt to current application's CGPointMake(0,0)
set pt to {xPos,yPos}
return pt
end setPoint
on mouseLeftClick at aPoint
current application's CGPostMouseEvent(aPoint,updateMouseCursorPosition,buttonCount,mouseButtonDown)
current application's CGPostMouseEvent(aPoint,not mouseButtonDown)
end mouseLeftClick