Slide In Out AE Script

{
    function SlideInOut(thisObj) {
        var buttonWidth = 50, buttonHeight = 40, buttonBuffer = 2;
        var mouseLocation = [300, 200];

        getMouseCoords();

        var easingPalette = new Window("palette", "Slide In & Out", undefined, {borderless:true});
        easingPalette.bounds = [
            mouseLocation[0]-buttonWidth*3,
            mouseLocation[1]-buttonHeight*2,
            mouseLocation[0]+buttonWidth*3,
            mouseLocation[1]+buttonHeight*1];

        function getMouseCoords() {
            var pos = [0, 0, 0, 0];
            for (i = 0; i < $.screens.length; i++) {
                if ($.screens[i].top < pos[0]) pos[0] = $.screens[i].top;
                if ($.screens[i].bottom > pos[2]) pos[2] = $.screens[i].bottom;
                if ($.screens[i].left < pos[3]) pos[3] = $.screens[i].left;
                if ($.screens[i].right > pos[1]) pos[1] = $.screens[i].right;
            }
            var sizeX = pos[1] - pos[3];
            var sizeY = pos[2] - pos[0];
            var mouseCapWin = new Window("dialog", undefined, undefined, {borderless: true})
            mouseCapWin.preferredSize.width = sizeX;
            mouseCapWin.preferredSize.height = sizeY;
            mouseCapWin.location = [pos[3], pos[0]];
            mouseCapWin.opacity = 0.01;
            var mouseCapGroup = mouseCapWin.add("group", undefined, {name: "mouseCapGroup"})
            mouseCapGroup.preferredSize.width = sizeX;
            mouseCapGroup.preferredSize.height = sizeY;
            mouseCapGroup.spacing = 0;
            mouseCapGroup.margins = 0;
            mouseCapWin.addEventListener("mouseover", grabMousePos);
            function grabMousePos(m){
                mouseLocation[0] = m.screenX;
                mouseLocation[1] = m.screenY;
                mouseCapWin.close();
            }
            mouseCapWin.show();
        }

        function adjustTransitionPosition(comp, pos, val, scale) {
            return [
                [val[0]+pos[0][0]*comp.width*1.5/scale[0]*100, val[1]+pos[0][1]*comp.height*1.5/scale[1]*100],
                [val[0]+pos[1][0]*comp.width*1.5/scale[0]*100, val[1]+pos[1][1]*comp.height*1.5/scale[1]*100]
            ];
        }

        function layerLonely(layers, i) {
            if (layers[i].parent == null) return true;
            for (var j = 0; j < layers.length; j++) {
                if (layers[i].parent == layers[j]) return false;
            }
            return true;
        }

        function applyTransition() {
            var comp = app.project.activeItem;
            if (comp.constructor.name == "CompItem") {
                var easing = new KeyframeEase(0, 80.0);
                app.beginUndoGroup("Slide In & Out");

                var layers = comp.selectedLayers;
                for (var i = 0; i < layers.length; i++) {
                    if (layerLonely(layers, i)) {
                        var val = layers[i].position.valueAtTime(comp.time, true);
                        var key1 = layers[i].position.addKey(comp.time);
                        var key2 = layers[i].position.addKey(comp.time + 2/3);

                        var scale = layers[i].parent == null ? [100,100,100] : layers[i].parent.scale.valueAtTime(comp.time, true);
                        var pos = adjustTransitionPosition(comp, this.transition, val, scale);
                        layers[i].position.setValueAtKey(key1, pos[0]);
                        layers[i].position.setValueAtKey(key2, pos[1]);

                        var arr = [easing];
                        switch (layers[i].position.propertyValueType) {
                            case PropertyValueType.ThreeD: arr.push(easing);
                            case PropertyValueType.TwoD: arr.push(easing);
                        }
                        layers[i].position.setInterpolationTypeAtKey(key1, KeyframeInterpolationType.BEZIER, KeyframeInterpolationType.BEZIER);
                        layers[i].position.setInterpolationTypeAtKey(key2, KeyframeInterpolationType.BEZIER, KeyframeInterpolationType.BEZIER);
                        layers[i].position.setTemporalEaseAtKey(key1, arr, arr);
                        layers[i].position.setTemporalEaseAtKey(key2, arr, arr);
                    }

                    if (this.transition[0][0] + this.transition[0][1] == 0) {
                        if (layers[i].outPoint > comp.time + 2/3)
                            layers[i].outPoint = comp.time + 2/3;
                    } else {
                        if (layers[i].inPoint < comp.time)
                            layers[i].inPoint = comp.time;
                    }
                }

                app.endUndoGroup();
            }
            close();
        }

        function close() {
            easingPalette.close();
        }

        function addButton(palette, location, text, transition) {
            var rect = [
                buttonBuffer+location[0]*buttonWidth,
                buttonBuffer+location[1]*buttonHeight,
                -buttonBuffer+(location[0]+1)*buttonWidth,
                -buttonBuffer+(location[1]+1)*buttonHeight];
            var button = palette.add("button", rect, text);
            button.transition = transition;
            if (text == "X") button.onClick = close;
            else button.onClick = applyTransition;
            return button;
        }

        function addText(palette, location, text) {
            var rect = [
                buttonBuffer+location[0]*buttonWidth,
                buttonBuffer+(location[1]-1/3)*buttonHeight,
                -buttonBuffer+(location[0]+1)*buttonWidth,
                -buttonBuffer+(location[1]+1)*buttonHeight];
            var label = palette.add("statictext", rect, text);
            label.justify = "center";
        }

        addText(easingPalette, [1, 1], "Slide\nIn");
        addButton(easingPalette, [1, 0], "Up", [[0, -1],[0, 0]]);
        addButton(easingPalette, [2, 1], "Right", [[1, 0],[0, 0]]);
        addButton(easingPalette, [1, 2], "Down", [[0, 1],[0, 0]]);
        addButton(easingPalette, [0, 1], "Left", [[-1, 0],[0, 0]]);
        addText(easingPalette, [4, 1], "Slide\nOut");
        addButton(easingPalette, [4, 0], "Up", [[0, 0],[0, -1]]);
        addButton(easingPalette, [5, 1], "Right", [[0, 0],[1, 0]]);
        addButton(easingPalette, [4, 2], "Down", [[0, 0],[0, 1]]);
        addButton(easingPalette, [3, 1], "Left", [[0, 0],[-1, 0]]);
        addButton(easingPalette, [2.5,0], "X", []);

        easingPalette.show();
    }

    SlideInOut(this);
}