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/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
</copyright> */
/**
@module "montage/ui/rich-text-sanitizer.js"
@requires montage/core/core
*/
var Montage = require("montage").Montage,
Component = require("ui/component").Component
/**
@class module:"montage/ui/shortcut-manager.js".ShortcutManager
*/
exports.ShortcutManager = Montage.create(Montage,/** @lends module:"montage/ui/shortcut-manager.js".ShortcutManager# */ {
/**
Description TODO
@private
*/
_keydownListenerRegistered: {
enumerable: false,
value: false,
distinct: true
},
/**
Description TODO
@private
*/
_modifiersMap: {
enumerable: false,
value: null
},
/**
Description TODO
@private
*/
_keyNames: {
enumerable: false,
value: {
"BACKSPACE": 8,
"TAB": 9,
"ENTER": 13,
"ESCAPE": 27,
"PAGEUP": 33,
"PAGEDOWN": 34,
"END": 35,
"HOME": 36,
"LEFT": 37,
"UP": 38,
"RIGHT": 39,
"DOWN": 40,
"INSERT": 45,
"DELETE": 46
// TODO: Complete list...
}
},
/**
Description TODO
@private
*/
_shortcutMap: {
enumerable: false,
value: {},
distinct: true
},
/**
Description TODO
@private
*/
_target: {
enumerable: false,
value: null
},
/**
Description TODO
Use the shortcuts array to pre-define shortcuts in template, each shortcut is an object with a keys and action property
@private
*/
target: {
enumerable: true,
set: function(target) {
this._target = target;
}
},
/**
Description TODO
Use the shortcuts array to pre-define shortcuts in template, each shortcut is an object with a keys and action property
@private
*/
shortcuts: {
enumerable: true,
value: [],
distinct: true
},
/**
Description TODO
@type {Function}
*/
deserializedFromTemplate: {
enumerable: false,
value : function() {
var shortcuts = this.shortcuts,
nbrShortcuts = shortcuts.length,
shortcut,
i;
for (i = 0; i < nbrShortcuts; i ++) {
shortcut = shortcuts[i];
this.addShortcut(shortcut.keys, shortcut.action);
}
}
},
/**
Description TODO
@type {Function}
*/
addShortcut: {
enumerable: true,
value: function(keys, action) {
var target = this._target,
modifiersMap = this._modifiersMap,
shortcutMap = this._shortcutMap,
key,
nbrKeys,
modifiers = 0,
i;
// Make sure we have a valid target
if (!target || (typeof target != "object" || !target.element) && target != "document" && target != document) {
console.log("SHORTCUT MANAGER: You need to set a valid target (must be a component with an element) before you can register shortcut");
return;
}
// Initialize the modifiers map if needed
if (!modifiersMap) {
modifiersMap = {SHIFT: 1, CTRL: 2, ALT: 4, META: 8};
modifiersMap.CMD = window.navigator.userAgent.match(/\bmacintosh\b/i) ? modifiersMap.META : modifiersMap.CTRL;
this._modifiersMap = modifiersMap;
}
// Register keydown listener
if (!this._keydownListenerRegistered) {
if (target == "document" || target == document) {
document.addEventListener("keydown", this);
} else {
target.element.addEventListener("keydown", this);
}
this._keydownListenerRegistered = true;
}
// Convert the keys into a modifiers mask
keys = keys.split("+");
nbrKeys = keys.length;
for (i = 0; i < nbrKeys - 1; i ++) {
modifier = keys[i].toUpperCase();
if (this._modifiersMap[modifier]) {
modifiers += this._modifiersMap[modifier];
}
}
// Extra the final key
key = keys[nbrKeys - 1].toUpperCase();
if (this._keyNames[key] !== undefined) {
key = this._keyNames[key];
} else {
key = key.charCodeAt(0);
}
// Update the shortcutMap
if (shortcutMap[modifiers] === undefined) {
shortcutMap[modifiers] = {};
}
if (shortcutMap[modifiers][key] === undefined) {
shortcutMap[modifiers][key] = [action];
} else {
shortcutMap[modifiers][key].push(action);
}
}
},
/**
Description TODO
@type {Function}
*/
removeShortcut: {
enumerable: true,
value : function() {
// TODO: Write Me
}
},
/**
Description TODO
@function
*/
handleKeydown: {
enumerable: false,
value: function(event) {
var keyCode = event.keyCode,
shortcutMap = this._shortcutMap;
modifiers = event.shiftKey + (event.ctrlKey << 1) + (event.altKey << 2) + (event.metaKey << 3),
stopEvent = false;
// Check the shortcut map
if (this._shortcutMap[modifiers] && this._shortcutMap[modifiers][keyCode]) {
var handler = this.handler || this._target,
actions = this._shortcutMap[modifiers][keyCode],
nbrActions = actions.length,
action,
i;
// execute shortcut's action
for (i = 0; i < nbrActions; i ++) {
action = actions[i];
if (handler && typeof handler.handleShortcut == "function" && handler.handleShortcut(event, action)) {
stopEvent = true;
break;
}
}
}
if (stopEvent) {
event.preventDefault();
event.stopPropagation();
}
}
}
})
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