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source: Dev/trunk/src/client/dijit/Tooltip.js @ 524

Last change on this file since 524 was 483, checked in by hendrikvanantwerpen, 11 years ago
Added Dojo 1.9.3 release.
File size: 18.7 KB

Line
1	define([
2	"dojo/_base/array", // array.forEach array.indexOf array.map
3	"dojo/_base/declare", // declare
4	"dojo/_base/fx", // fx.fadeIn fx.fadeOut
5	"dojo/dom", // dom.byId
6	"dojo/dom-class", // domClass.add
7	"dojo/dom-geometry", // domGeometry.position
8	"dojo/dom-style", // domStyle.set, domStyle.get
9	"dojo/_base/lang", // lang.hitch lang.isArrayLike
10	"dojo/mouse",
11	"dojo/on",
12	"dojo/sniff", // has("ie")
13	"./_base/manager", // manager.defaultDuration
14	"./place",
15	"./_Widget",
16	"./_TemplatedMixin",
17	"./BackgroundIframe",
18	"dojo/text!./templates/Tooltip.html",
19	"./main" // sets dijit.showTooltip etc. for back-compat
20	], function(array, declare, fx, dom, domClass, domGeometry, domStyle, lang, mouse, on, has,
21	manager, place, _Widget, _TemplatedMixin, BackgroundIframe, template, dijit){
22
23	// module:
24	// dijit/Tooltip
25
26
27	// TODO: Tooltip should really share more positioning code with TooltipDialog, like:
28	// - the orient() method
29	// - the connector positioning code in show()
30	// - the dijitTooltip[Dialog] class
31	//
32	// The problem is that Tooltip's implementation supplies it's own <iframe> and interacts directly
33	// with dijit/place, rather than going through dijit/popup like TooltipDialog and other popups (ex: Menu).
34
35	var MasterTooltip = declare("dijit._MasterTooltip", [_Widget, _TemplatedMixin], {
36	// summary:
37	// Internal widget that holds the actual tooltip markup,
38	// which occurs once per page.
39	// Called by Tooltip widgets which are just containers to hold
40	// the markup
41	// tags:
42	// protected
43
44	// duration: Integer
45	// Milliseconds to fade in/fade out
46	duration: manager.defaultDuration,
47
48	templateString: template,
49
50	postCreate: function(){
51	this.ownerDocumentBody.appendChild(this.domNode);
52
53	this.bgIframe = new BackgroundIframe(this.domNode);
54
55	// Setup fade-in and fade-out functions.
56	this.fadeIn = fx.fadeIn({ node: this.domNode, duration: this.duration, onEnd: lang.hitch(this, "_onShow") });
57	this.fadeOut = fx.fadeOut({ node: this.domNode, duration: this.duration, onEnd: lang.hitch(this, "_onHide") });
58	},
59
60	show: function(innerHTML, aroundNode, position, rtl, textDir){
61	// summary:
62	// Display tooltip w/specified contents to right of specified node
63	// (To left if there's no space on the right, or if rtl == true)
64	// innerHTML: String
65	// Contents of the tooltip
66	// aroundNode: DomNode\|dijit/place.__Rectangle
67	// Specifies that tooltip should be next to this node / area
68	// position: String[]?
69	// List of positions to try to position tooltip (ex: ["right", "above"])
70	// rtl: Boolean?
71	// Corresponds to `WidgetBase.dir` attribute, where false means "ltr" and true
72	// means "rtl"; specifies GUI direction, not text direction.
73	// textDir: String?
74	// Corresponds to `WidgetBase.textdir` attribute; specifies direction of text.
75
76
77	if(this.aroundNode && this.aroundNode === aroundNode && this.containerNode.innerHTML == innerHTML){
78	return;
79	}
80
81	if(this.fadeOut.status() == "playing"){
82	// previous tooltip is being hidden; wait until the hide completes then show new one
83	this._onDeck=arguments;
84	return;
85	}
86	this.containerNode.innerHTML=innerHTML;
87
88	if(textDir){
89	this.set("textDir", textDir);
90	}
91
92	this.containerNode.align = rtl? "right" : "left"; //fix the text alignment
93
94	var pos = place.around(this.domNode, aroundNode,
95	position && position.length ? position : Tooltip.defaultPosition, !rtl, lang.hitch(this, "orient"));
96
97	// Position the tooltip connector for middle alignment.
98	// This could not have been done in orient() since the tooltip wasn't positioned at that time.
99	var aroundNodeCoords = pos.aroundNodePos;
100	if(pos.corner.charAt(0) == 'M' && pos.aroundCorner.charAt(0) == 'M'){
101	this.connectorNode.style.top = aroundNodeCoords.y + ((aroundNodeCoords.h - this.connectorNode.offsetHeight) >> 1) - pos.y + "px";
102	this.connectorNode.style.left = "";
103	}else if(pos.corner.charAt(1) == 'M' && pos.aroundCorner.charAt(1) == 'M'){
104	this.connectorNode.style.left = aroundNodeCoords.x + ((aroundNodeCoords.w - this.connectorNode.offsetWidth) >> 1) - pos.x + "px";
105	}else{
106	// Not *-centered, but just above/below/after/before
107	this.connectorNode.style.left = "";
108	this.connectorNode.style.top = "";
109	}
110
111	// show it
112	domStyle.set(this.domNode, "opacity", 0);
113	this.fadeIn.play();
114	this.isShowingNow = true;
115	this.aroundNode = aroundNode;
116	},
117
118	orient: function(/DomNode/ node, /String/ aroundCorner, /String/ tooltipCorner, /Object/ spaceAvailable, /Object/ aroundNodeCoords){
119	// summary:
120	// Private function to set CSS for tooltip node based on which position it's in.
121	// This is called by the dijit popup code. It will also reduce the tooltip's
122	// width to whatever width is available
123	// tags:
124	// protected
125
126	this.connectorNode.style.top = ""; //reset to default
127
128	var heightAvailable = spaceAvailable.h,
129	widthAvailable = spaceAvailable.w;
130
131	node.className = "dijitTooltip " +
132	{
133	"MR-ML": "dijitTooltipRight",
134	"ML-MR": "dijitTooltipLeft",
135	"TM-BM": "dijitTooltipAbove",
136	"BM-TM": "dijitTooltipBelow",
137	"BL-TL": "dijitTooltipBelow dijitTooltipABLeft",
138	"TL-BL": "dijitTooltipAbove dijitTooltipABLeft",
139	"BR-TR": "dijitTooltipBelow dijitTooltipABRight",
140	"TR-BR": "dijitTooltipAbove dijitTooltipABRight",
141	"BR-BL": "dijitTooltipRight",
142	"BL-BR": "dijitTooltipLeft"
143	}[aroundCorner + "-" + tooltipCorner];
144
145	// reset width; it may have been set by orient() on a previous tooltip show()
146	this.domNode.style.width = "auto";
147
148	// Reduce tooltip's width to the amount of width available, so that it doesn't overflow screen.
149	// Note that sometimes widthAvailable is negative, but we guard against setting style.width to a
150	// negative number since that causes an exception on IE.
151	var size = domGeometry.position(this.domNode);
152	if(has("ie") == 9){
153	// workaround strange IE9 bug where setting width to offsetWidth causes words to wrap
154	size.w += 2;
155	}
156
157	var width = Math.min((Math.max(widthAvailable,1)), size.w);
158
159	domGeometry.setMarginBox(this.domNode, {w: width});
160
161	// Reposition the tooltip connector.
162	if(tooltipCorner.charAt(0) == 'B' && aroundCorner.charAt(0) == 'B'){
163	var bb = domGeometry.position(node);
164	var tooltipConnectorHeight = this.connectorNode.offsetHeight;
165	if(bb.h > heightAvailable){
166	// The tooltip starts at the top of the page and will extend past the aroundNode
167	var aroundNodePlacement = heightAvailable - ((aroundNodeCoords.h + tooltipConnectorHeight) >> 1);
168	this.connectorNode.style.top = aroundNodePlacement + "px";
169	this.connectorNode.style.bottom = "";
170	}else{
171	// Align center of connector with center of aroundNode, except don't let bottom
172	// of connector extend below bottom of tooltip content, or top of connector
173	// extend past top of tooltip content
174	this.connectorNode.style.bottom = Math.min(
175	Math.max(aroundNodeCoords.h/2 - tooltipConnectorHeight/2, 0),
176	bb.h - tooltipConnectorHeight) + "px";
177	this.connectorNode.style.top = "";
178	}
179	}else{
180	// reset the tooltip back to the defaults
181	this.connectorNode.style.top = "";
182	this.connectorNode.style.bottom = "";
183	}
184
185	return Math.max(0, size.w - widthAvailable);
186	},
187
188	_onShow: function(){
189	// summary:
190	// Called at end of fade-in operation
191	// tags:
192	// protected
193	if(has("ie")){
194	// the arrow won't show up on a node w/an opacity filter
195	this.domNode.style.filter="";
196	}
197	},
198
199	hide: function(aroundNode){
200	// summary:
201	// Hide the tooltip
202
203	if(this._onDeck && this._onDeck[1] == aroundNode){
204	// this hide request is for a show() that hasn't even started yet;
205	// just cancel the pending show()
206	this._onDeck=null;
207	}else if(this.aroundNode === aroundNode){
208	// this hide request is for the currently displayed tooltip
209	this.fadeIn.stop();
210	this.isShowingNow = false;
211	this.aroundNode = null;
212	this.fadeOut.play();
213	}else{
214	// just ignore the call, it's for a tooltip that has already been erased
215	}
216	},
217
218	_onHide: function(){
219	// summary:
220	// Called at end of fade-out operation
221	// tags:
222	// protected
223
224	this.domNode.style.cssText=""; // to position offscreen again
225	this.containerNode.innerHTML="";
226	if(this._onDeck){
227	// a show request has been queued up; do it now
228	this.show.apply(this, this._onDeck);
229	this._onDeck=null;
230	}
231	}
232	});
233
234	if(has("dojo-bidi")){
235	MasterTooltip.extend({
236	_setAutoTextDir: function(/Object/node){
237	// summary:
238	// Resolve "auto" text direction for children nodes
239	// tags:
240	// private
241
242	this.applyTextDir(node);
243	array.forEach(node.children, function(child){ this._setAutoTextDir(child); }, this);
244	},
245
246	_setTextDirAttr: function(/String/ textDir){
247	// summary:
248	// Setter for textDir.
249	// description:
250	// Users shouldn't call this function; they should be calling
251	// set('textDir', value)
252	// tags:
253	// private
254
255	this._set("textDir", textDir);
256
257	if (textDir == "auto"){
258	this._setAutoTextDir(this.containerNode);
259	}else{
260	this.containerNode.dir = this.textDir;
261	}
262	}
263	});
264	}
265
266	dijit.showTooltip = function(innerHTML, aroundNode, position, rtl, textDir){
267	// summary:
268	// Static method to display tooltip w/specified contents in specified position.
269	// See description of dijit/Tooltip.defaultPosition for details on position parameter.
270	// If position is not specified then dijit/Tooltip.defaultPosition is used.
271	// innerHTML: String
272	// Contents of the tooltip
273	// aroundNode: place.__Rectangle
274	// Specifies that tooltip should be next to this node / area
275	// position: String[]?
276	// List of positions to try to position tooltip (ex: ["right", "above"])
277	// rtl: Boolean?
278	// Corresponds to `WidgetBase.dir` attribute, where false means "ltr" and true
279	// means "rtl"; specifies GUI direction, not text direction.
280	// textDir: String?
281	// Corresponds to `WidgetBase.textdir` attribute; specifies direction of text.
282
283	// After/before don't work, but for back-compat convert them to the working after-centered, before-centered.
284	// Possibly remove this in 2.0. Alternately, get before/after to work.
285	if(position){
286	position = array.map(position, function(val){
287	return {after: "after-centered", before: "before-centered"}[val] \|\| val;
288	});
289	}
290
291	if(!Tooltip._masterTT){ dijit._masterTT = Tooltip._masterTT = new MasterTooltip(); }
292	return Tooltip._masterTT.show(innerHTML, aroundNode, position, rtl, textDir);
293	};
294
295	dijit.hideTooltip = function(aroundNode){
296	// summary:
297	// Static method to hide the tooltip displayed via showTooltip()
298	return Tooltip._masterTT && Tooltip._masterTT.hide(aroundNode);
299	};
300
301	var Tooltip = declare("dijit.Tooltip", _Widget, {
302	// summary:
303	// Pops up a tooltip (a help message) when you hover over a node.
304	// Also provides static show() and hide() methods that can be used without instantiating a dijit/Tooltip.
305
306	// label: String
307	// HTML to display in the tooltip.
308	// Specified as innerHTML when creating the widget from markup.
309	label: "",
310
311	// showDelay: Integer
312	// Number of milliseconds to wait after hovering over/focusing on the object, before
313	// the tooltip is displayed.
314	showDelay: 400,
315
316	// connectId: String\|String[]\|DomNode\|DomNode[]
317	// Id of domNode(s) to attach the tooltip to.
318	// When user hovers over specified dom node(s), the tooltip will appear.
319	connectId: [],
320
321	// position: String[]
322	// See description of `dijit/Tooltip.defaultPosition` for details on position parameter.
323	position: [],
324
325	// selector: String?
326	// CSS expression to apply this Tooltip to descendants of connectIds, rather than to
327	// the nodes specified by connectIds themselves. Useful for applying a Tooltip to
328	// a range of rows in a table, tree, etc. Use in conjunction with getContent() parameter.
329	// Ex: connectId: myTable, selector: "tr", getContent: function(node){ return ...; }
330	//
331	// The application must require() an appropriate level of dojo/query to handle the selector.
332	selector: "",
333
334	// TODO: in 2.0 remove support for multiple connectIds. selector gives the same effect.
335	// So, change connectId to a "", remove addTarget()/removeTarget(), etc.
336
337	_setConnectIdAttr: function(/String\|String[]\|DomNode\|DomNode[]/ newId){
338	// summary:
339	// Connect to specified node(s)
340
341	// Remove connections to old nodes (if there are any)
342	array.forEach(this._connections \|\| [], function(nested){
343	array.forEach(nested, function(handle){ handle.remove(); });
344	}, this);
345
346	// Make array of id's to connect to, excluding entries for nodes that don't exist yet, see startup()
347	this._connectIds = array.filter(lang.isArrayLike(newId) ? newId : (newId ? [newId] : []),
348	function(id){ return dom.byId(id, this.ownerDocument); }, this);
349
350	// Make connections
351	this._connections = array.map(this._connectIds, function(id){
352	var node = dom.byId(id, this.ownerDocument),
353	selector = this.selector,
354	delegatedEvent = selector ?
355	function(eventType){ return on.selector(selector, eventType); } :
356	function(eventType){ return eventType; },
357	self = this;
358	return [
359	on(node, delegatedEvent(mouse.enter), function(){
360	self._onHover(this);
361	}),
362	on(node, delegatedEvent("focusin"), function(){
363	self._onHover(this);
364	}),
365	on(node, delegatedEvent(mouse.leave), lang.hitch(self, "_onUnHover")),
366	on(node, delegatedEvent("focusout"), lang.hitch(self, "_onUnHover"))
367	];
368	}, this);
369
370	this._set("connectId", newId);
371	},
372
373	addTarget: function(/OomNode\|String/ node){
374	// summary:
375	// Attach tooltip to specified node if it's not already connected
376
377	// TODO: remove in 2.0 and just use set("connectId", ...) interface
378
379	var id = node.id \|\| node;
380	if(array.indexOf(this._connectIds, id) == -1){
381	this.set("connectId", this._connectIds.concat(id));
382	}
383	},
384
385	removeTarget: function(/DomNode\|String/ node){
386	// summary:
387	// Detach tooltip from specified node
388
389	// TODO: remove in 2.0 and just use set("connectId", ...) interface
390
391	var id = node.id \|\| node, // map from DOMNode back to plain id string
392	idx = array.indexOf(this._connectIds, id);
393	if(idx >= 0){
394	// remove id (modifies original this._connectIds but that's OK in this case)
395	this._connectIds.splice(idx, 1);
396	this.set("connectId", this._connectIds);
397	}
398	},
399
400	buildRendering: function(){
401	this.inherited(arguments);
402	domClass.add(this.domNode,"dijitTooltipData");
403	},
404
405	startup: function(){
406	this.inherited(arguments);
407
408	// If this tooltip was created in a template, or for some other reason the specified connectId[s]
409	// didn't exist during the widget's initialization, then connect now.
410	var ids = this.connectId;
411	array.forEach(lang.isArrayLike(ids) ? ids : [ids], this.addTarget, this);
412	},
413
414	getContent: function(/DomNode/ node){
415	// summary:
416	// User overridable function that return the text to display in the tooltip.
417	// tags:
418	// extension
419	return this.label \|\| this.domNode.innerHTML;
420	},
421
422	_onHover: function(/DomNode/ target){
423	// summary:
424	// Despite the name of this method, it actually handles both hover and focus
425	// events on the target node, setting a timer to show the tooltip.
426	// tags:
427	// private
428	if(!this._showTimer){
429	this._showTimer = this.defer(function(){ this.open(target); }, this.showDelay);
430	}
431	},
432
433	_onUnHover: function(){
434	// summary:
435	// Despite the name of this method, it actually handles both mouseleave and blur
436	// events on the target node, hiding the tooltip.
437	// tags:
438	// private
439
440	if(this._showTimer){
441	this._showTimer.remove();
442	delete this._showTimer;
443	}
444	this.close();
445	},
446
447	open: function(/DomNode/ target){
448	// summary:
449	// Display the tooltip; usually not called directly.
450	// tags:
451	// private
452
453	if(this._showTimer){
454	this._showTimer.remove();
455	delete this._showTimer;
456	}
457
458	var content = this.getContent(target);
459	if(!content){
460	return;
461	}
462	Tooltip.show(content, target, this.position, !this.isLeftToRight(), this.textDir);
463
464	this._connectNode = target; // _connectNode means "tooltip currently displayed for this node"
465	this.onShow(target, this.position);
466	},
467
468	close: function(){
469	// summary:
470	// Hide the tooltip or cancel timer for show of tooltip
471	// tags:
472	// private
473
474	if(this._connectNode){
475	// if tooltip is currently shown
476	Tooltip.hide(this._connectNode);
477	delete this._connectNode;
478	this.onHide();
479	}
480	if(this._showTimer){
481	// if tooltip is scheduled to be shown (after a brief delay)
482	this._showTimer.remove();
483	delete this._showTimer;
484	}
485	},
486
487	onShow: function(/===== target, position =====/){
488	// summary:
489	// Called when the tooltip is shown
490	// tags:
491	// callback
492	},
493
494	onHide: function(){
495	// summary:
496	// Called when the tooltip is hidden
497	// tags:
498	// callback
499	},
500
501	destroy: function(){
502	this.close();
503
504	// Remove connections manually since they aren't registered to be removed by _WidgetBase
505	array.forEach(this._connections \|\| [], function(nested){
506	array.forEach(nested, function(handle){ handle.remove(); });
507	}, this);
508
509	this.inherited(arguments);
510	}
511	});
512
513	Tooltip._MasterTooltip = MasterTooltip; // for monkey patching
514	Tooltip.show = dijit.showTooltip; // export function through module return value
515	Tooltip.hide = dijit.hideTooltip; // export function through module return value
516
517	Tooltip.defaultPosition = ["after-centered", "before-centered"];
518
519	/*=====
520	lang.mixin(Tooltip, {
521	// defaultPosition: String[]
522	// This variable controls the position of tooltips, if the position is not specified to
523	// the Tooltip widget or *TextBox widget itself. It's an array of strings with the values
524	// possible for `dijit/place.around()`. The recommended values are:
525	//
526	// - before-centered: centers tooltip to the left of the anchor node/widget, or to the right
527	// in the case of RTL scripts like Hebrew and Arabic
528	// - after-centered: centers tooltip to the right of the anchor node/widget, or to the left
529	// in the case of RTL scripts like Hebrew and Arabic
530	// - above-centered: tooltip is centered above anchor node
531	// - below-centered: tooltip is centered above anchor node
532	//
533	// The list is positions is tried, in order, until a position is found where the tooltip fits
534	// within the viewport.
535	//
536	// Be careful setting this parameter. A value of "above-centered" may work fine until the user scrolls
537	// the screen so that there's no room above the target node. Nodes with drop downs, like
538	// DropDownButton or FilteringSelect, are especially problematic, in that you need to be sure
539	// that the drop down and tooltip don't overlap, even when the viewport is scrolled so that there
540	// is only room below (or above) the target node, but not both.
541	});
542	=====*/
543	return Tooltip;
544	});

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