Configuring the hotkeys
You can change the default key or key combinations associated with actions and configure your own hotkeys by writing a small amount of customized code. In JSF™ Faces (JSF)™ applications, you must set the hotkeys attribute of your View tag to your own hotkey values, as shown in the following code example.
<jvcf:chartView ... ...
hotkeys="{singleSelect : {hotkey : IlvUtil.keys.SPACE},
zoomIn : {hotkey : [ IlvUtil.keys.NUMPAD_PLUS, IlvUtil.keys.EQUALS ],
filter : { ctrl : false, shift : true }
}
}">
...
</jvcf:chartView>
In JavaScript™ applications, you must create the hotkeys object and then call the
setHotkeys method of the
View object as shown in the following code example.
var chart= new IlvChartView(x, y, w, h);
...
...
chart.setAccessible(true);
var hotkeys = {singleSelect : {hotkey : IlvUtil.keys.SPACE},
zoomIn : {hotkey : [ IlvUtil.keys.NUMPAD_PLUS, IlvUtil.keys.EQUALS ],
filter : { ctrl : false, shift : true }
}
};
chart.setHotkeys(hotkeys);
The following table lists the actions you can customize.
Action | Description | Default key or key combination |
Up | Moves focus to the upper element in accordance with the navigation style. | Up Arrow |
Down | Moves focus to the lower element in accordance with the navigation style. | Down Arrow |
Left | Moves focus to the element on the left in accordance with the navigation style. | Left Arrow |
Right | Moves focus to the element on the right in accordance with the navigation style. | Right Arrow |
singleSelect | Selects the graphic element that has the current focus. | Enter |
zoomInByX | Zooms in on an area of the view by the x axis. | Shift+Plus (+) |
zoomOutByX | Zooms out of an area of the view by the x axis. | Shift+Minus (-) |
zoomInByY | Zooms in on an area of the view by the y axis. | Alt+Plus (+) |
zoomOutByY | Zooms out of an area of the view by the y axis. | Alt+Minus (-) |
panLeft | Pans the view to the left. | Ctrl+Left Arrow |
panRight | Pans the view to the right. | Ctrl+Right Arrow |
panUp | Pans the view up. | Ctrl+Up Arrow |
panDown | Pans the view down. | Ctrl+Down Arrow |
moveLeft | Moves the selected graph elements left. | Shift+Left Arrow |
moveRight | Moves the selected graph elements right. | Shift+Right Arrow |
moveUp | Moves the selected graph elements up. | Shift+Up Arrow |
moveDown | Moves the selected graph elements down. | Shift+Down Arrow |
The following code example shows an object that defines the keys and corresponding keycodes that you can use for hotkeys in JViews web applications.
IlvUtil.keys = {
BACKSPACE: 8,
TAB: 9,
CLEAR: 12,
ENTER: 13,
SHIFT: 16,
CTRL: 17,
ALT: 18,
PAUSE: 19,
CAPS_LOCK: 20,
ESCAPE: 27,
SPACE: 32,
PAGE_UP: 33,
PAGE_DOWN: 34,
END: 35,
HOME: 36,
LEFT_ARROW: 37,
UP_ARROW: 38,
RIGHT_ARROW: 39,
DOWN_ARROW: 40,
INSERT: 45,
DELETE: 46,
HELP: 47,
LEFT_WINDOW: 91,
RIGHT_WINDOW: 92,
SELECT: 93,
NUMPAD_0: 96,
NUMPAD_1: 97,
NUMPAD_2: 98,
NUMPAD_3: 99,
NUMPAD_4: 100,
NUMPAD_5: 101,
NUMPAD_6: 102,
NUMPAD_7: 103,
NUMPAD_8: 104,
NUMPAD_9: 105,
NUMPAD_MULTIPLY: 106,
NUMPAD_PLUS: 107,
PLUS: 107,
NUMPAD_ENTER: 108,
NUMPAD_MINUS: 109,
MINUS: 109,
NUMPAD_PERIOD: 110,
NUMPAD_DIVIDE: 111,
EQUALS: 187,
DASH: 189,
F1: 112,
F2: 113,
F3: 114,
F4: 115,
F5: 116,
F6: 117,
F7: 118,
F8: 119,
F9: 120,
F10: 121,
F11: 122,
F12: 123,
F13: 124,
F14: 125,
F15: 126,
NUM_LOCK: 144,
SCROLL_LOCK: 145
};
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