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1 API iRidium. Gestures
2 Methods
- 2.1 IR.AddRecognizer
- 2.2 IR.RemoveRecognizer
3 Events
- 3.1 IR.EVENT_GESTURE_BEGIN

API iRidium. Gestures

Gestures enable interaction with items or activation of particular functions in iRidium projects for panels with sensor screens. Gestures will not work on devices controlled with the help of the mouse and keyboard!

Methods

IR.AddRecognizer

This function is used for activating gestures.

Syntax

IR.AddRecognizer(gesture_type);

input

value

description

gesture_type

IR.GESTURE_SWIPE_LEFT

type: Object
the gesture type:

IR.GESTURE_SWIPE_LEFT - to the left;
IR.GESTURE_SWIPE_RIGHT - to the right;
IR.GESTURE_SWIPE_UP - up;
IR.GESTURE_SWIPE_DOWN - down;
IR.GESTURE_PINCH_IN - to pinch in;
IR.GESTURE_PINCH_OUT - to pinch out;
IR.GESTURE_LONG_PRESS - a long pressing;
IR.GESTURE_DOUBLE_TAP - a double tapping;

output

-

Sample

IR.AddListener(IR.EVENT_START,0,function()
// The event which is activated in the start of application work 
{
    IR.AddRecognizer(IR.GESTURE_SWIPE_LEFT);  // (1) The SWIPE_LEFT gesture is activated 
    IR.AddRecognizer(IR.GESTURE_SWIPE_RIGHT); // (2) The SWIPE_RIGHT gesture is activated
    IR.AddRecognizer(IR.GESTURE_SWIPE_UP);    // (3) The SWIPE_UP gesture is activated
    IR.AddRecognizer(IR.GESTURE_SWIPE_DOWN);  // (4) The SWIPE_DOWN gesture is activated
    IR.AddRecognizer(IR.GESTURE_PINCH_IN);    // (5) The PINCH_IN gesture is activated
    IR.AddRecognizer(IR.GESTURE_PINCH_OUT);   // (6) The PINCH_OUT gesture is activated
    IR.AddRecognizer(IR.GESTURE_LONG_PRESS);  // (7) The LONG_PRESS gesture is activated
    IR.AddRecognizer(IR.GESTURE_DOUBLE_TAP);  // (8) The DOUBLE_TAP gesture is activated
});

IR.RemoveRecognizer

This function is used for deactivating gestures

Syntax

IR.RemoveRecognizer(gesture_type);

input

value

description

gesture_type

IR.GESTURE_SWIPE_LEFT

type: Object
the gesture type:

IR.GESTURE_SWIPE_LEFT - to the left;
IR.GESTURE_SWIPE_RIGHT - to the right;
IR.GESTURE_SWIPE_UP - up;
IR.GESTURE_SWIPE_DOWN - down;
IR.GESTURE_PINCH_IN - to pinch in;
IR.GESTURE_PINCH_OUT - to pinch out;
IR.GESTURE_LONG_PRESS - a long pressing;
IR.GESTURE_DOUBLE_TAP - a double tapping;

output

-

Sample

IR.AddListener(IR.EVENT_EXIT,0,function()  // The event which is activated when exiting the application 
{
    IR.RemoveRecognizer(IR.GESTURE_SWIPE_LEFT);  // (1) The SWIPE_LEFT gesture is deactivated 
    IR.RemoveRecognizer(IR.GESTURE_SWIPE_RIGHT); // (2) The SWIPE_RIGHT gesture is deactivated 
    IR.RemoveRecognizer(IR.GESTURE_SWIPE_UP);    // (3) The SWIPE_UP gesture is deactivated 
    IR.RemoveRecognizer(IR.GESTURE_SWIPE_DOWN);  // (4) The SWIPE_DOWN gesture is deactivated 
    IR.RemoveRecognizer(IR.GESTURE_PINCH_IN);    // (5) The PINCH_IN gesture is deactivated 
    IR.RemoveRecognizer(IR.GESTURE_PINCH_OUT);   // (6) The PINCH_OUT gesture is deactivated 
    IR.RemoveRecognizer(IR.GESTURE_LONG_PRESS);  // (7) The LONG_PRESS gesture is deactivated 
    IR.RemoveRecognizer(IR.GESTURE_DOUBLE_TAP);  // (8) The DOUBLE_TAP gesture is deactivated 
});

Events

IR.EVENT_GESTURE_BEGIN

The event is activated when starting the gesture

Syntax

IR.AddListener(R.EVENT_GESTURE_BEGIN, page, function, [pointer]);

input

value

description

page IR.GetItem("Page 1") type: object
the link to the interface object

function function() {} type: function
the unnamed function or referring to the function

pointer - type: object
the poiter to the object which serves the function (optional)

output

gesture - type: variable
the type name of the gesture which started

x - type: variable
the X coordinate of the gesture start

y - type: variable
the Y coordinate of the gesture start

Sample

var button; 
IR.AddListener(IR.EVENT_START, 0, function()
// The event which is activated in the start of application work 
{
    // Create the button for switching between pages 
    var button = IR.CreateItem(IR.ITEM_BUTTON, "text", 10, 10);
    button.Text = "";
    // Activation of gestures 
    IR.AddRecognizer(IR.GESTURE_SWIPE_LEFT);  // The SWIPE_LEFT gesture is activated
    IR.AddRecognizer(IR.GESTURE_SWIPE_RIGHT); // The SWIPE_RIGHT gesture is activated
    IR.AddRecognizer(IR.GESTURE_SWIPE_UP);    // The SWIPE_UP gesture is activated
    IR.AddRecognizer(IR.GESTURE_SWIPE_DOWN);  // The SWIPE_DOWN gesture is activated
// Connect the listener, send the current page and the function with parameters 
    IR.AddListener(IR.EVENT_GESTURE_BEGIN, IR.CurrentPage, function(gesture, x, y)
    {
        // The selection construction 
        switch(gesture)
        {
        case IR.GESTURE_SWIPE_LEFT: // 1
            button.Text = "Left";   // If the SWIPE_LEFT gesture starts, then there will be the "Left" sign
            break;
        case IR.GESTURE_SWIPE_RIGHT: // 2
            button.Text = "Right";  // If the SWIPE_RIGHT gesture starts, then there will be the "Right" sign
            break;
        case IR.GESTURE_SWIPE_UP: // 3
            button.Text = "Up";     // If the SWIPE_UP gesture starts, then there will be the "Up" sign
            break;
        case IR.GESTURE_SWIPE_DOWN: // 4
            button.Text = "Down";   // If the SWIPE_DOWN gesture starts, then there will be the "Down" sign
            break;
        }
    });
});