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mobile/android/chrome/content/SelectHelper.js@6474c204b198 (annotated)

mobile/android/chrome/content/SelectHelper.js

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	2	* License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0	3	* You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	4	"use strict";
michael@0	5
michael@0	6	var SelectHelper = {
michael@0	7	_uiBusy: false,
michael@0	8
michael@0	9	handleEvent: function(aEvent) {
michael@0	10	this.handleClick(aEvent.target);
michael@0	11	},
michael@0	12
michael@0	13	handleClick: function(aTarget) {
michael@0	14	// if we're busy looking at a select we want to eat any clicks that
michael@0	15	// come to us, but not to process them
michael@0	16	if (this._uiBusy || !this._isMenu(aTarget) || aTarget.disabled)
michael@0	17	return;
michael@0	18
michael@0	19	this._uiBusy = true;
michael@0	20	this.show(aTarget);
michael@0	21	this._uiBusy = false;
michael@0	22	},
michael@0	23
michael@0	24	show: function(aElement) {
michael@0	25	let list = this.getListForElement(aElement);
michael@0	26
michael@0	27	let p = new Prompt({
michael@0	28	window: aElement.contentDocument
michael@0	29	});
michael@0	30
michael@0	31	if (aElement.multiple) {
michael@0	32	p.addButton({
michael@0	33	label: Strings.browser.GetStringFromName("selectHelper.closeMultipleSelectDialog")
michael@0	34	}).setMultiChoiceItems(list);
michael@0	35	} else {
michael@0	36	p.setSingleChoiceItems(list);
michael@0	37	}
michael@0	38
michael@0	39	p.show((function(data) {
michael@0	40	let selected = data.list;
michael@0	41
michael@0	42	if (aElement instanceof Ci.nsIDOMXULMenuListElement) {
michael@0	43	if (aElement.selectedIndex != selected[0]) {
michael@0	44	aElement.selectedIndex = selected[0];
michael@0	45	this.fireOnCommand(aElement);
michael@0	46	}
michael@0	47	} else if (aElement instanceof HTMLSelectElement) {
michael@0	48	let changed = false;
michael@0	49	let i = 0;
michael@0	50	this.forOptions(aElement, function(aNode) {
michael@0	51	if (aNode.selected && selected.indexOf(i) == -1) {
michael@0	52	changed = true;
michael@0	53	aNode.selected = false;
michael@0	54	} else if (!aNode.selected && selected.indexOf(i) != -1) {
michael@0	55	changed = true;
michael@0	56	aNode.selected = true;
michael@0	57	}
michael@0	58	i++;
michael@0	59	});
michael@0	60
michael@0	61	if (changed)
michael@0	62	this.fireOnChange(aElement);
michael@0	63	}
michael@0	64	}).bind(this));
michael@0	65	},
michael@0	66
michael@0	67	_isMenu: function(aElement) {
michael@0	68	return (aElement instanceof HTMLSelectElement ||
michael@0	69	aElement instanceof Ci.nsIDOMXULMenuListElement);
michael@0	70	},
michael@0	71
michael@0	72	getListForElement: function(aElement) {
michael@0	73	let index = 0;
michael@0	74	let items = [];
michael@0	75	this.forOptions(aElement, function(aNode, aOptions, aParent) {
michael@0	76	let item = {
michael@0	77	label: aNode.text || aNode.label,
michael@0	78	header: aOptions.isGroup,
michael@0	79	disabled: aNode.disabled,
michael@0	80	id: index,
michael@0	81	selected: aNode.selected
michael@0	82	}
michael@0	83
michael@0	84	if (aParent) {
michael@0	85	item.child = true;
michael@0	86	item.disabled = item.disabled || aParent.disabled;
michael@0	87	}
michael@0	88	items.push(item);
michael@0	89
michael@0	90	index++;
michael@0	91	});
michael@0	92	return items;
michael@0	93	},
michael@0	94
michael@0	95	forOptions: function(aElement, aFunction, aParent = null) {
michael@0	96	let element = aElement;
michael@0	97	if (aElement instanceof Ci.nsIDOMXULMenuListElement)
michael@0	98	element = aElement.menupopup;
michael@0	99	let children = element.children;
michael@0	100	let numChildren = children.length;
michael@0	101
michael@0	102	// if there are no children in this select, we add a dummy row so that at least something appears
michael@0	103	if (numChildren == 0)
michael@0	104	aFunction.call(this, { label: "" }, { isGroup: false }, aParent);
michael@0	105
michael@0	106	for (let i = 0; i < numChildren; i++) {
michael@0	107	let child = children[i];
michael@0	108	if (child instanceof HTMLOptionElement ||
michael@0	109	child instanceof Ci.nsIDOMXULSelectControlItemElement) {
michael@0	110	aFunction.call(this, child, { isGroup: false }, aParent);
michael@0	111	} else if (child instanceof HTMLOptGroupElement) {
michael@0	112	aFunction.call(this, child, { isGroup: true });
michael@0	113	this.forOptions(child, aFunction, child);
michael@0	114
michael@0	115	}
michael@0	116	}
michael@0	117	},
michael@0	118
michael@0	119	fireOnChange: function(aElement) {
michael@0	120	let evt = aElement.ownerDocument.createEvent("Events");
michael@0	121	evt.initEvent("change", true, true, aElement.defaultView, 0,
michael@0	122	false, false,
michael@0	123	false, false, null);
michael@0	124	setTimeout(function() {
michael@0	125	aElement.dispatchEvent(evt);
michael@0	126	}, 0);
michael@0	127	},
michael@0	128
michael@0	129	fireOnCommand: function(aElement) {
michael@0	130	let evt = aElement.ownerDocument.createEvent("XULCommandEvent");
michael@0	131	evt.initCommandEvent("command", true, true, aElement.defaultView, 0,
michael@0	132	false, false,
michael@0	133	false, false, null);
michael@0	134	setTimeout(function() {
michael@0	135	aElement.dispatchEvent(evt);
michael@0	136	}, 0);
michael@0	137	}
michael@0	138	};