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Thread: Solution for unity-2d autohide

  1. #1
    rsavage is offline Iced Almond Soy Ubuntu, No Foam
    Join Date
    Jan 2011

    Solution for unity-2d autohide

    I've been looking again at unity-2d and thought I'd share a solution to bug

    Type the command
    gksudo gedit /usr/share/unity-2d/shell/Shell.qml
    Scroll down to this bit:
        PointerBarrier {
            property int x: declarativeView.globalPosition.x + (Utils.isLeftToRight() ? 0 : shell.width)
            property bool enableTrigger: launcherLoader.launcherInHideMode && launcherLoader.loadLauncher
            // This enableSticky logic has a 'bug' int RTL where the right most screen will still have enableSticky
            // set to true, but it won't cause any issue other than consuming a few bytes of mememory and calculating the 
            // rightmost x is probably more expensive and error prone than just enabling the extra barrier
            property bool enableSticky: unity2dConfiguration.stickyEdges && declarativeView.screen.geometry.x > 0
            id: leftBarrier
            triggerDirection: Utils.isLeftToRight() ? PointerBarrier.TriggerFromRight : PointerBarrier.TriggerFromLeft
            triggerZoneEnabled: enableTrigger && !launcherLoader.visibilityController.shown
            triggerOnly: enableTrigger && !enableSticky
            p1: Qt.point(x, declarativeView.screen.geometry.y)
            p2: Qt.point(x, declarativeView.screen.geometry.y + declarativeView.screen.geometry.height)
            triggerZoneP1: Qt.point(x, launcher2dConfiguration.revealMode == 1 ? declarativeView.screen.geometry.y : declarativeView.globalPosition.y)
            triggerZoneP2: Qt.point(x, launcher2dConfiguration.revealMode == 1 ? declarativeView.screen.geometry.y + 1 : declarativeView.globalPosition.y + launcherLoader.height)
            threshold: (enableSticky || enableTrigger) ? launcher2dConfiguration.edgeStopVelocity : -1
            maxVelocityMultiplier: launcher2dConfiguration.edgeResponsiveness
            decayRate: 1500
            triggerPressure: launcher2dConfiguration.edgeRevealPressure
            breakPressure: 2000
            onTriggered: launcherLoader.item.barrierTriggered()
    Change the decayRate and breakPressure to the values above.

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  2. #2
    rsavage is offline Iced Almond Soy Ubuntu, No Foam
    Join Date
    Jan 2011

    Re: Solution for unity-2d autohide

    Continuing the theme of hacks....

    If you want to start the dash from the command line, you can use this command in 12.04:

    dbus-send --type=method_call --dest=com.canonical.Unity2d.Shell /Dash com.canonical.Unity2d.Dash.activateHome

  3. #3
    Join Date
    Dec 2009

    Re: Solution for unity-2d autohide

    Thanks! Worked for me on 12.04 and a G4 "iLamp" iMac powerpc. Tried many other approaches, and this is the only one that did the trick. Thanks again.


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