[英]Wait for a GUI application to fully startup before running script
如果我在bash
腳本中有這樣的內容:
audacity &
pid=$!
wmctrl -r "Audacity" -e 0,0,0,800,600
...它通常會失敗,因為進程啟動( audacity &
)將比完全顯示Audacity窗口(並可以通過wmctrl
進行控制)早得多的時間完成/返回,否則可能要花費幾秒鍾。
在繼續執行腳本之前,是否有一種簡單的方法可以“同步”或“等待” GUI應用程序完全啟動(即其窗口已完全呈現)? ( 我找到了一種方法,我將其發布為答案-但如果有一種更簡單,更緊湊的方法,我一直在徘徊 )
編輯:這確實檢測何時顯示窗口; 但無法檢測其中所有菜單/小部件的放置/布局是否完成
好的,所以首先我運行以下腳本:
audacity &
pid=$!
while [ "1" ] ; do
xwininfo -name 'Audacity'
sleep 0.1
done
...應該這樣運行,以獲得完整的日志:
bash testscript.sh 2>&1 | tee testscript.log
...可以看到一點,可以說xwininfo
的轉儲是“轉換”:
xwininfo: Window id: 0x3a000b5 (has no name)
Absolute upper-left X: 0
Absolute upper-left Y: 0
Relative upper-left X: 0
Relative upper-left Y: 0
Width: 200
Height: 200
Depth: 24
Visual: 0x21
Visual Class: TrueColor
Border width: 0
Class: InputOutput
Colormap: 0x20 (installed)
Bit Gravity State: NorthWestGravity
Window Gravity State: NorthWestGravity
Backing Store State: NotUseful
Save Under State: no
Map State: IsUnMapped
Override Redirect State: no
Corners: +0+0 -824+0 -824-400 +0-400
-geometry 200x200+0+0
xwininfo: Window id: 0x4c00587 "Audacity"
Absolute upper-left X: 50
Absolute upper-left Y: 59
Relative upper-left X: 0
Relative upper-left Y: 18
Width: 830
Height: 540
Depth: 24
Visual: 0x21
Visual Class: TrueColor
Border width: 0
Class: InputOutput
Colormap: 0x20 (installed)
Bit Gravity State: NorthWestGravity
Window Gravity State: NorthWestGravity
Backing Store State: NotUseful
Save Under State: no
Map State: IsViewable
Override Redirect State: no
Corners: +50+59 -144+59 -144-1 +50-1
-geometry 830x540+50-1
因此,我基本上可以為不包含“沒有名稱”或包含“地圖狀態:IsViewable”的xwininfo
輸出設置grep
...
所以,我終於嘗試了這一點-似乎可行:
audacity &
pid=$!
WINREP=""
while [[ ! "`echo $WINREP | grep -l 'Map State: IsViewable'`" ]] ; do
WINREP=$(xwininfo -name 'Audacity')
#echo $WINREP
sleep 0.1
done
echo Exited
# must use -F here for case-insensitive, to ensure proper window targetting
wmctrl -v -F -r "Audacity" -e 0,0,0,800,600
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