2 * The dock namespace: Contains all things dock related
6 count : 0, // The number of dock items currently
7 totalcount : 0, // The number of dock items through the page life
8 items : [], // An array of dock items
9 earlybinds : [], // Events added before the dock was augmented to support events
10 Y : null, // The YUI instance to use with dock related code
11 initialised : false, // True once thedock has been initialised
12 delayedevent : null, // Will be an object if there is a delayed event in effect
13 preventevent : null, // Will be an eventtype if there is an eventyoe to prevent
17 * Namespace containing the nodes that relate to the dock
21 dock : null, // The dock itself
22 body : null, // The body of the page
23 panel : null // The docks panel
26 * Configuration parameters used during the initialisation and setup
27 * of dock and dock items.
28 * This is here specifically so that themers can override core parameters and
29 * design aspects without having to re-write navigation
33 buffer:10, // Buffer used when containing a panel
34 position:'left', // position of the dock
35 orientation:'vertical', // vertical || horizontal determines if we change the title
36 spacebeforefirstitem: 10, // Space between the top of the dock and the first item
37 removeallicon: M.util.image_url('t/dock_to_block', 'moodle')
40 * CSS classes to use with the dock
44 dock:'dock', // CSS Class applied to the dock box
45 dockspacer:'dockspacer', // CSS class applied to the dockspacer
46 controls:'controls', // CSS class applied to the controls box
47 body:'has_dock', // CSS class added to the body when there is a dock
48 buttonscontainer: 'buttons_container',
49 dockeditem:'dockeditem', // CSS class added to each item in the dock
50 dockeditemcontainer:'dockeditem_container',
51 dockedtitle:'dockedtitle', // CSS class added to the item's title in each dock
52 activeitem:'activeitem' // CSS class added to the active item
55 * Augments the classes as required and processes early bindings
57 M.core_dock.init = function(Y) {
58 if (this.initialised) {
62 this.initialised = true;
64 this.nodes.body = Y.one(document.body);
66 // Give the dock item class the event properties/methods
67 Y.augment(this.item, Y.EventTarget);
68 Y.augment(this, Y.EventTarget, true);
70 * A 'dock:actionkey' Event.
71 * The event consists of the left arrow, right arrow, enter and space keys.
72 * More keys can be mapped to action meanings.
73 * actions: collapse , expand, toggle, enter.
75 * This event is subscribed to by dockitems.
76 * The on() method to subscribe allows specifying the desired trigger actions as JSON.
78 * This event can also be delegated if needed.
79 * Todo: This could be centralised, a similar Event is defined in blocks/navigation/yui/navigation/navigation.js
81 Y.Event.define("dock:actionkey", {
82 // Webkit and IE repeat keydown when you hold down arrow keys.
83 // Opera links keypress to page scroll; others keydown.
84 // Firefox prevents page scroll via preventDefault() on either
85 // keydown or keypress.
86 _event: (Y.UA.webkit || Y.UA.ie) ? 'keydown' : 'keypress',
92 //(@todo: lrt/rtl/M.core_dock.cfg.orientation decision to assign arrow to meanings)
97 _keyHandler: function (e, notifier, args) {
99 var actObj = {collapse:true, expand:true, toggle:true, enter:true};
101 var actObj = args.actions;
103 if (this._keys[e.keyCode] && actObj[this._keys[e.keyCode]]) {
104 e.action = this._keys[e.keyCode];
109 on: function (node, sub, notifier) {
110 // subscribe to _event and ask keyHandler to handle with given args[0] (the desired actions).
111 if (sub.args == null) {
113 sub._detacher = node.on(this._event, this._keyHandler,this, notifier, {actions:false});
115 sub._detacher = node.on(this._event, this._keyHandler,this, notifier, sub.args[0]);
119 detach: function (node, sub, notifier) {
120 //detach our _detacher handle of the subscription made in on()
121 sub._detacher.detach();
124 delegate: function (node, sub, notifier, filter) {
125 // subscribe to _event and ask keyHandler to handle with given args[0] (the desired actions).
126 if (sub.args == null) {
128 sub._delegateDetacher = node.delegate(this._event, this._keyHandler,filter, this, notifier, {actions:false});
130 sub._delegateDetacher = node.delegate(this._event, this._keyHandler,filter, this, notifier, sub.args[0]);
134 detachDelegate: function (node, sub, notifier) {
135 sub._delegateDetacher.detach();
138 // Publish the events the dock has
139 this.publish('dock:beforedraw', {prefix:'dock'});
140 this.publish('dock:beforeshow', {prefix:'dock'});
141 this.publish('dock:shown', {prefix:'dock'});
142 this.publish('dock:hidden', {prefix:'dock'});
143 this.publish('dock:initialised', {prefix:'dock'});
144 this.publish('dock:itemadded', {prefix:'dock'});
145 this.publish('dock:itemremoved', {prefix:'dock'});
146 this.publish('dock:itemschanged', {prefix:'dock'});
147 this.publish('dock:panelgenerated', {prefix:'dock'});
148 this.publish('dock:panelresizestart', {prefix:'dock'});
149 this.publish('dock:resizepanelcomplete', {prefix:'dock'});
150 this.publish('dock:starting', {prefix: 'dock',broadcast: 2,emitFacade: true});
151 this.fire('dock:starting');
152 // Re-apply early bindings properly now that we can
154 // Check if there is a customisation function
155 if (typeof(customise_dock_for_theme) === 'function') {
157 // Run the customisation function
158 customise_dock_for_theme();
159 } catch (exception) {
160 // Do nothing at the moment
164 var dock = Y.one('#dock');
166 // Start the construction of the dock
167 dock = Y.Node.create('<div id="dock" role="menubar" class="'+css.dock+' '+css.dock+'_'+this.cfg.position+'_'+this.cfg.orientation+'"></div>')
168 .append(Y.Node.create('<div class="'+css.buttonscontainer+'"></div>')
169 .append(Y.Node.create('<div class="'+css.dockeditemcontainer+'"></div>')));
170 this.nodes.body.append(dock);
172 dock.addClass(css.dock+'_'+this.cfg.position+'_'+this.cfg.orientation);
174 this.holdingarea = Y.Node.create('<div></div>').setStyles({display:'none'});
175 this.nodes.body.append(this.holdingarea);
176 if (Y.UA.ie > 0 && Y.UA.ie < 7) {
177 // Adjust for IE 6 (can't handle fixed pos)
178 dock.setStyle('height', dock.get('winHeight')+'px');
181 this.nodes.dock = dock;
182 this.nodes.buttons = dock.one('.'+css.buttonscontainer);
183 this.nodes.container = this.nodes.buttons.one('.'+css.dockeditemcontainer);
185 if (Y.all('.block.dock_on_load').size() == 0) {
186 // Nothing on the dock... hide it using CSS
187 dock.addClass('nothingdocked');
189 this.nodes.body.addClass(this.css.body).addClass(this.css.body+'_'+this.cfg.position+'_'+this.cfg.orientation);
192 this.fire('dock:beforedraw');
194 // Add a removeall button
195 // Must set the image src seperatly of we get an error with XML strict headers
196 var removeall = Y.Node.create('<img alt="'+M.str.block.undockall+'" title="'+M.str.block.undockall+'" tabindex="0"/>');
197 removeall.setAttribute('src',this.cfg.removeallicon);
198 removeall.on('removeall|click', this.remove_all, this);
199 removeall.on('dock:actionkey', this.remove_all, this, {actions:{enter:true}});
200 this.nodes.buttons.appendChild(Y.Node.create('<div class="'+css.controls+'"></div>').append(removeall));
202 // Create a manager for the height of the tabs. Once set this can be forgotten about
205 enabled : false, // True if the item_sizer is being used, false otherwise
207 * Initialises the dock sizer which then attaches itself to the required
208 * events in order to monitor the dock
212 M.core_dock.on('dock:itemschanged', this.checkSizing, this);
213 Y.on('windowresize', this.checkSizing, this);
216 * Check if the size dock items needs to be adjusted
218 checkSizing : function() {
219 var dock = M.core_dock;
220 var possibleheight = dock.nodes.dock.get('offsetHeight') - dock.nodes.dock.one('.controls').get('offsetHeight') - (dock.cfg.buffer*3) - (dock.items.length*2);
222 for (var id in dock.items) {
223 var dockedtitle = Y.one(dock.items[id].title).ancestor('.'+dock.css.dockedtitle);
226 dockedtitle.setStyle('height', 'auto');
228 totalheight += dockedtitle.get('offsetHeight') || 0;
231 if (totalheight > possibleheight) {
232 this.enable(possibleheight);
236 * Enables the dock sizer and resizes where required.
238 enable : function(possibleheight) {
239 var dock = M.core_dock;
240 var runningcount = 0;
243 for (var id in dock.items) {
244 var itemtitle = Y.one(dock.items[id].title).ancestor('.'+dock.css.dockedtitle);
248 var itemheight = Math.floor((possibleheight-usedheight) / (dock.count - runningcount));
249 var offsetheight = itemtitle.get('offsetHeight');
250 itemtitle.setStyle('overflow', 'hidden');
251 if (offsetheight > itemheight) {
252 itemtitle.setStyle('height', itemheight+'px');
253 usedheight += itemheight;
255 usedheight += offsetheight;
263 // Attach the required event listeners
264 // We use delegate here as that way a handful of events are created for the dock
265 // and all items rather than the same number for the dock AND every item individually
266 Y.delegate('click', this.handleEvent, this.nodes.dock, '.'+this.css.dockedtitle, this, {cssselector:'.'+this.css.dockedtitle, delay:0});
267 Y.delegate('mouseenter', this.handleEvent, this.nodes.dock, '.'+this.css.dockedtitle, this, {cssselector:'.'+this.css.dockedtitle, delay:0.5, iscontained:true, preventevent:'click', preventdelay:3});
268 //Y.delegate('mouseleave', this.handleEvent, this.nodes.body, '#dock', this, {cssselector:'#dock', delay:0.5, iscontained:false});
269 this.nodes.dock.on('mouseleave', this.handleEvent, this, {cssselector:'#dock', delay:0.5, iscontained:false});
271 this.nodes.body.on('click', this.handleEvent, this, {cssselector:'body', delay:0});
272 this.on('dock:itemschanged', this.resizeBlockSpace, this);
273 this.on('dock:itemschanged', this.checkDockVisibility, this);
274 this.on('dock:itemschanged', this.resetFirstItem, this);
275 // Inform everyone the dock has been initialised
276 this.fire('dock:initialised');
280 * Get the panel docked blocks will be shown in and initialise it if we havn't already.
282 M.core_dock.getPanel = function() {
283 if (this.nodes.panel === null) {
284 // Initialise the dockpanel .. should only happen once
285 this.nodes.panel = (function(Y, parent){
286 var dockpanel = Y.Node.create('<div id="dockeditempanel" class="dockitempanel_hidden"><div class="dockeditempanel_content"><div class="dockeditempanel_hd"></div><div class="dockeditempanel_bd"></div></div></div>');
287 // Give the dockpanel event target properties and methods
288 Y.augment(dockpanel, Y.EventTarget);
289 // Publish events for the dock panel
290 dockpanel.publish('dockpanel:beforeshow', {prefix:'dockpanel'});
291 dockpanel.publish('dockpanel:shown', {prefix:'dockpanel'});
292 dockpanel.publish('dockpanel:beforehide', {prefix:'dockpanel'});
293 dockpanel.publish('dockpanel:hidden', {prefix:'dockpanel'});
294 dockpanel.publish('dockpanel:visiblechange', {prefix:'dockpanel'});
295 // Cache the content nodes
296 dockpanel.contentNode = dockpanel.one('.dockeditempanel_content');
297 dockpanel.contentHeader = dockpanel.contentNode.one('.dockeditempanel_hd');
298 dockpanel.contentBody = dockpanel.contentNode.one('.dockeditempanel_bd');
299 // Set the x position of the panel
300 //dockpanel.setX(parent.get('offsetWidth'));
301 dockpanel.visible = false;
303 dockpanel.show = function() {
304 this.fire('dockpanel:beforeshow');
306 this.removeClass('dockitempanel_hidden');
307 this.fire('dockpanel:shown');
308 this.fire('dockpanel:visiblechange');
311 dockpanel.hide = function() {
312 this.fire('dockpanel:beforehide');
313 this.visible = false;
314 this.addClass('dockitempanel_hidden');
315 this.fire('dockpanel:hidden');
316 this.fire('dockpanel:visiblechange');
318 // Add a method to set the header content
319 dockpanel.setHeader = function(content) {
320 this.contentHeader.setContent(content);
321 if (arguments.length > 1) {
322 for (var i=1;i < arguments.length;i++) {
323 this.contentHeader.append(arguments[i]);
327 // Add a method to set the body content
328 dockpanel.setBody = function(content) {
329 this.contentBody.setContent(content);
331 // Add a method to set the top of the panel position
332 dockpanel.setTop = function(newtop) {
333 if (Y.UA.ie > 0 && Y.UA.ie < 7) {
336 this.setStyle('top', newtop.toString()+'px');
341 * Increases the width of the panel to avoid horizontal scrolling
344 dockpanel.correctWidth = function() {
345 var bd = this.one('.dockeditempanel_bd');
348 var w = bd.get('clientWidth');
349 // Scrollable width of content
350 var s = bd.get('scrollWidth');
351 // Width of content container with overflow
352 var ow = this.get('offsetWidth');
355 // The max width (80% of screen)
356 var mw = Math.round(this.get('winWidth') * 0.8);
358 // If the scrollable width is more than the visible width
362 // + any rendering difference (borders, padding)
363 // + 10px to make it look nice.
364 nw = w + (s-w) + ((ow-w)*2) + 10;
367 // Make sure its not more then the maxwidth
372 // Set the new width if its more than the old width.
374 this.setStyle('width', nw+'px');
377 // Put the dockpanel in the body
378 parent.append(dockpanel);
381 })(this.Y, this.nodes.dock);
382 this.nodes.panel.on('panel:visiblechange', this.resize, this);
383 this.Y.on('windowresize', this.resize, this);
384 this.fire('dock:panelgenerated');
386 return this.nodes.panel;
389 * Handles a generic event within the dock
391 * @param {object} options Event configuration object
393 M.core_dock.handleEvent = function(e, options) {
394 var item = this.getActiveItem();
395 if (options.cssselector == 'body') {
396 if (!this.nodes.dock.contains(e.target)) {
403 if (e.target.test(options.cssselector)) {
406 target = e.target.ancestor(options.cssselector);
411 if (this.preventevent !== null && e.type === this.preventevent) {
414 if (options.preventevent) {
415 this.preventevent = options.preventevent;
416 if (options.preventdelay) {
417 setTimeout(function(){M.core_dock.preventevent = null;}, options.preventdelay*1000);
420 if (this.delayedevent && this.delayedevent.timeout) {
421 clearTimeout(this.delayedevent.timeout);
422 this.delayedevent.event.detach();
423 this.delayedevent = null;
425 if (options.delay > 0) {
426 return this.delayEvent(e, options, target);
428 var targetid = target.get('id');
429 if (targetid.match(/^dock_item_(\d+)_title$/)) {
430 item = this.items[targetid.replace(/^dock_item_(\d+)_title$/, '$1')];
443 * This function delays an event and then fires it providing the cursor if either
444 * within or outside of the original target (options.iscontained=true|false)
445 * @param {Y.Event} event
446 * @param {object} options
447 * @param {Y.Node} target
450 M.core_dock.delayEvent = function(event, options, target) {
452 self.delayedevent = (function(){
455 event : self.nodes.body.on('mousemove', function(e){
456 self.delayedevent.target = e.target;
461 self.delayedevent.timeout = setTimeout(function(){
462 self.delayedevent.timeout = null;
463 self.delayedevent.event.detach();
464 if (options.iscontained == self.nodes.dock.contains(self.delayedevent.target)) {
465 self.handleEvent(event, {cssselector:options.cssselector, delay:0, iscontained:options.iscontained});
467 }, options.delay*1000);
471 * Corrects the orientation of the title, which for the default
472 * dock just means making it vertical
473 * The orientation is determined by M.str.langconfig.thisdirectionvertical:
474 * ver : Letters are stacked rather than rotated
475 * ttb : Title is rotated clockwise so the first letter is at the top
476 * btt : Title is rotated counterclockwise so the first letter is at the bottom.
477 * @param {string} title
479 M.core_dock.fixTitleOrientation = function(item, title, text) {
482 var title = Y.one(title);
484 if(M.core_dock.cfg.orientation != 'vertical') {
485 // If the dock isn't vertical don't adjust it!
486 title.setContent(text);
490 if (Y.UA.ie > 0 && Y.UA.ie < 8) {
491 // IE 6/7 can't rotate text so force ver
492 M.str.langconfig.thisdirectionvertical = 'ver';
495 var clockwise = false;
496 switch (M.str.langconfig.thisdirectionvertical) {
499 return title.setContent(text.split('').join('<br />'));
509 // IE8 can flip the text via CSS but not handle transform. IE9+ can handle the CSS3 transform attribute.
510 title.setContent(text);
511 title.setAttribute('style', 'writing-mode: tb-rl; filter: flipV flipH;display:inline;');
512 title.addClass('filterrotate');
516 // We need to fix a font-size - sorry theme designers.
517 var fontsize = '11px';
518 var transform = (clockwise) ? 'rotate(90deg)' : 'rotate(270deg)';
519 var test = Y.Node.create('<h2><span class="transform-test-node" style="font-size:'+fontsize+';">'+text+'</span></h2>');
520 this.nodes.body.insert(test, 0);
521 var width = test.one('span').get('offsetWidth') * 1.2;
522 var height = test.one('span').get('offsetHeight');
525 title.setContent(text);
526 title.addClass('css3transform');
528 // Move the title into position
532 'position' : 'relative',
533 'fontSize' : fontsize,
538 // Positioning is different when in RTL mode.
539 if (right_to_left()) {
540 title.setStyle('left', width/2 - height);
542 title.setStyle('right', width/2 - height);
547 'transform' : transform,
548 '-ms-transform' : transform,
549 '-moz-transform' : transform,
550 '-webkit-transform' : transform,
551 '-o-transform' : transform
554 var container = Y.Node.create('<div></div>');
555 container.append(title);
556 container.setStyle('height', width + (width / 4));
557 container.setStyle('position', 'relative');
563 * Resizes the space that contained blocks if there were no blocks left in
564 * it. e.g. if all blocks have been moved to the dock
565 * @param {Y.Node} node
567 M.core_dock.resizeBlockSpace = function(node) {
569 if (this.Y.all('.block.dock_on_load').size()>0) {
570 // Do not resize during initial load
573 var blockregions = [];
574 var populatedblockregions = 0;
575 this.Y.all('.block-region').each(function(region){
576 var hasblocks = (region.all('.block').size() > 0);
578 populatedblockregions++;
580 blockregions[region.get('id')] = {hasblocks: hasblocks, bodyclass: region.get('id').replace(/^region\-/, 'side-')+'-only'};
582 var bodynode = M.core_dock.nodes.body;
583 var showregions = false;
584 if (bodynode.hasClass('blocks-moving')) {
585 // open up blocks during blocks positioning
589 var noblocksbodyclass = 'content-only';
591 if (populatedblockregions==0 && showregions==false) {
592 bodynode.addClass(noblocksbodyclass);
593 for (i in blockregions) {
594 bodynode.removeClass(blockregions[i].bodyclass);
596 } else if (populatedblockregions==1 && showregions==false) {
597 bodynode.removeClass(noblocksbodyclass);
598 for (i in blockregions) {
599 if (!blockregions[i].hasblocks) {
600 bodynode.removeClass(blockregions[i].bodyclass);
602 bodynode.addClass(blockregions[i].bodyclass);
606 bodynode.removeClass(noblocksbodyclass);
607 for (i in blockregions) {
608 bodynode.removeClass(blockregions[i].bodyclass);
613 * Adds a dock item into the dock
615 * @param {M.core_dock.item} item
617 M.core_dock.add = function(item) {
618 item.id = this.totalcount;
621 this.items[item.id] = item;
622 this.items[item.id].draw();
623 this.fire('dock:itemadded', item);
624 this.fire('dock:itemschanged', item);
627 * Appends a dock item to the dock
628 * @param {YUI.Node} docknode
630 M.core_dock.append = function(docknode) {
631 this.nodes.container.append(docknode);
634 * Initialises a generic block object
638 M.core_dock.init_genericblock = function(Y, id) {
639 if (!this.initialised) {
642 new this.genericblock(id).initialise_block(Y, Y.one('#inst'+id));
645 * Removes the node at the given index and puts it back into conventional page sturcture
647 * @param {int} uid Unique identifier for the block
650 M.core_dock.remove = function(uid) {
651 if (!this.items[uid]) {
654 this.items[uid].remove();
655 delete this.items[uid];
657 this.fire('dock:itemremoved', uid);
658 this.fire('dock:itemschanged', uid);
662 * Ensures the the first item in the dock has the correct class
664 M.core_dock.resetFirstItem = function() {
665 this.nodes.dock.all('.'+this.css.dockeditem+'.firstdockitem').removeClass('firstdockeditem');
666 if (this.nodes.dock.one('.'+this.css.dockeditem)) {
667 this.nodes.dock.one('.'+this.css.dockeditem).addClass('firstdockitem');
671 * Removes all nodes and puts them back into conventional page sturcture
675 M.core_dock.remove_all = function(e) {
676 for (var i in this.items) {
682 * Hides the active item
684 M.core_dock.hideActive = function() {
685 var item = this.getActiveItem();
691 * Checks wether the dock should be shown or hidden
693 M.core_dock.checkDockVisibility = function() {
695 this.nodes.dock.addClass('nothingdocked');
696 this.nodes.body.removeClass(this.css.body)
697 .removeClass(this.css.body+'_'+this.cfg.position+'_'+this.cfg.orientation);
698 this.fire('dock:hidden');
700 this.fire('dock:beforeshow');
701 this.nodes.dock.removeClass('nothingdocked');
702 this.nodes.body.addClass(this.css.body)
703 .addClass(this.css.body+'_'+this.cfg.position+'_'+this.cfg.orientation);
704 this.fire('dock:shown');
708 * This smart little function allows developers to attach event listeners before
709 * the dock has been augmented to allows event listeners.
710 * Once the augmentation is complete this function will be replaced with the proper
711 * on method for handling event listeners.
712 * Finally applyBinds needs to be called in order to properly bind events.
713 * @param {string} event
714 * @param {function} callback
716 M.core_dock.on = function(event, callback) {
717 this.earlybinds.push({event:event,callback:callback});
720 * This function takes all early binds and attaches them as listeners properly
721 * This should only be called once augmentation is complete.
723 M.core_dock.applyBinds = function() {
724 for (var i in this.earlybinds) {
725 var bind = this.earlybinds[i];
726 this.on(bind.event, bind.callback);
728 this.earlybinds = [];
731 * This function checks the size and position of the panel and moves/resizes if
732 * required to keep it within the bounds of the window.
734 M.core_dock.resize = function() {
735 this.fire('dock:panelresizestart');
736 var panel = this.getPanel();
737 var item = this.getActiveItem();
738 if (!panel.visible || !item) {
742 if (this.cfg.orientation=='vertical') {
743 var buffer = this.cfg.buffer;
744 var screenheight = parseInt(this.nodes.body.get('winHeight'))-(buffer*2);
745 var docky = this.nodes.dock.getY();
746 var titletop = item.nodes.docktitle.getY()-docky-buffer;
747 var containery = this.nodes.container.getY();
748 var containerheight = containery-docky+this.nodes.buttons.get('offsetHeight');
749 var scrolltop = panel.contentBody.get('scrollTop');
750 panel.contentBody.setStyle('height', 'auto');
751 panel.removeClass('oversized_content');
752 var panelheight = panel.get('offsetHeight');
754 if (this.Y.UA.ie > 0 && this.Y.UA.ie < 7) {
755 panel.setTop(item.nodes.docktitle.getY());
756 } else if (panelheight > screenheight) {
757 panel.setTop(buffer-containerheight);
758 panel.contentBody.setStyle('height', (screenheight-panel.contentHeader.get('offsetHeight'))+'px');
759 panel.addClass('oversized_content');
760 } else if (panelheight > (screenheight-(titletop-buffer))) {
761 var difference = panelheight - (screenheight-titletop);
762 panel.setTop(titletop-containerheight-difference+buffer);
764 panel.setTop(titletop-containerheight+buffer);
768 panel.contentBody.set('scrollTop', scrolltop);
772 if (this.cfg.position=='right') {
773 panel.setStyle('left', -panel.get('offsetWidth')+'px');
775 } else if (this.cfg.position=='top') {
776 var dockx = this.nodes.dock.getX();
777 var titleleft = item.nodes.docktitle.getX()-dockx;
778 panel.setStyle('left', titleleft+'px');
781 this.fire('dock:resizepanelcomplete');
785 * Returns the currently active dock item or false
787 M.core_dock.getActiveItem = function() {
788 for (var i in this.items) {
789 if (this.items[i].active) {
790 return this.items[i];
796 * This class represents a generic block
797 * @class M.core_dock.genericblock
800 M.core_dock.genericblock = function(id) {
801 // Nothing to actually do here but it needs a constructor!
806 M.core_dock.genericblock.prototype = {
807 Y : null, // A YUI instance to use with the block
808 id : null, // The block instance id
809 cachedcontentnode : null, // The cached content node for the actual block
810 blockspacewidth : null, // The width of the block's original container
811 skipsetposition : false, // If true the user preference isn't updated
812 isdocked : false, // True if it is docked
814 * This function should be called within the block's constructor and is used to
815 * set up the initial controls for swtiching block position as well as an initial
816 * moves that may be required.
819 * @param {YUI.Node} node The node that contains all of the block's content
820 * @return {M.core_dock.genericblock}
822 initialise_block : function(Y, node) {
830 var commands = node.one('.header .title .commands');
832 commands = this.Y.Node.create('<div class="commands"></div>');
833 if (node.one('.header .title')) {
834 node.one('.header .title').append(commands);
838 // Must set the image src seperatly of we get an error with XML strict headers
839 var moveto = Y.Node.create('<input type="image" class="moveto customcommand requiresjs" alt="'+M.str.block.addtodock+'" title="'+M.str.block.addtodock+'" />');
840 var icon = 't/block_to_dock';
841 if (right_to_left()) {
842 icon = 't/block_to_dock_rtl';
844 moveto.setAttribute('src', M.util.image_url(icon, 'moodle'));
845 moveto.on('movetodock|click', this.move_to_dock, this, commands);
847 var blockaction = node.one('.block_action');
849 blockaction.prepend(moveto);
851 commands.append(moveto);
854 // Move the block straight to the dock if required
855 if (node.hasClass('dock_on_load')) {
856 node.removeClass('dock_on_load');
857 this.skipsetposition = true;
858 this.move_to_dock(null, commands);
864 * This function is reponsible for moving a block from the page structure onto the
868 move_to_dock : function(e, commands) {
874 var dock = M.core_dock;
876 var node = Y.one('#inst'+this.id);
877 var blockcontent = node.one('.content');
882 // Disable the skip anchor when docking
883 var skipanchor = node.previous();
884 if (skipanchor.hasClass('skip-block')) {
888 var blockclass = (function(classes){
889 var r = /(^|\s)(block_[a-zA-Z0-9_]+)(\s|$)/;
890 var m = r.exec(classes);
892 })(node.getAttribute('className').toString());
894 this.cachedcontentnode = node;
896 node.replace(Y.Node.getDOMNode(Y.Node.create('<div id="content_placeholder_'+this.id+'" class="block_dock_placeholder"></div>')));
897 M.core_dock.holdingarea.append(node);
900 var blocktitle = Y.Node.getDOMNode(this.cachedcontentnode.one('.title h2')).cloneNode(true);
902 var blockcommands = this.cachedcontentnode.one('.title .commands');
903 if (!blockcommands) {
904 blockcommands = Y.Node.create('<div class="commands"></div>');
905 this.cachedcontentnode.one('.title').append(blockcommands);
908 // Must set the image src seperatly of we get an error with XML strict headers
909 var movetoimg = Y.Node.create('<img alt="'+M.str.block.undockitem+'" title="'+M.util.get_string('undockblock', 'block', blocktitle.innerHTML)+'" />');
910 var icon = 't/dock_to_block';
911 if (right_to_left()) {
912 icon = 't/dock_to_block_rtl';
914 movetoimg.setAttribute('src', M.util.image_url(icon, 'moodle'));
915 var moveto = Y.Node.create('<a class="moveto customcommand requiresjs"></a>').append(movetoimg);
916 if (location.href.match(/\?/)) {
917 moveto.set('href', location.href+'&dock='+this.id);
919 moveto.set('href', location.href+'?dock='+this.id);
921 blockcommands.append(moveto);
923 // Create a new dock item for the block
924 var dockitem = new dock.item(Y, this.id, blocktitle, blockcontent, blockcommands, blockclass);
925 // Wire the draw events to register remove events
926 dockitem.on('dockeditem:drawcomplete', function(e){
927 // check the contents block [editing=off]
928 this.contents.all('.moveto').on('returntoblock|click', function(e){
930 dock.remove(this.id);
932 // check the commands block [editing=on]
933 this.commands.all('.moveto').on('returntoblock|click', function(e){
935 dock.remove(this.id);
938 // Must set the image src seperatly of we get an error with XML strict headers
939 var closeicon = Y.Node.create('<span class="hidepanelicon" tabindex="0"><img alt="'+M.str.block.hidepanel+'" title="'+M.str.block.hidedockpanel+'" /></span>');
940 closeicon.one('img').setAttribute('src', M.util.image_url('t/dockclose', 'moodle'));
941 closeicon.on('forceclose|click', this.hide, this);
942 closeicon.on('dock:actionkey',this.hide, this, {actions:{enter:true,toggle:true}});
943 this.commands.append(closeicon);
945 // Register an event so that when it is removed we can put it back as a block
946 dockitem.on('dockeditem:itemremoved', this.return_to_block, this, dockitem);
949 if (!this.skipsetposition) {
950 // save the users preference
951 M.util.set_user_preference('docked_block_instance_'+this.id, 1);
953 this.skipsetposition = false;
956 this.isdocked = true;
959 * This function removes a block from the dock and puts it back into the page
961 * @param {M.core_dock.class.item}
963 return_to_block : function(dockitem) {
964 var placeholder = this.Y.one('#content_placeholder_'+this.id);
966 // Enable the skip anchor when going back to block mode
967 var skipanchor = placeholder.previous();
968 if (skipanchor.hasClass('skip-block')) {
972 if (this.cachedcontentnode.one('.header')) {
973 this.cachedcontentnode.one('.header').insert(dockitem.contents, 'after');
975 this.cachedcontentnode.insert(dockitem.contents);
978 placeholder.replace(this.Y.Node.getDOMNode(this.cachedcontentnode));
979 this.cachedcontentnode = this.Y.one('#'+this.cachedcontentnode.get('id'));
981 var commands = dockitem.commands;
983 commands.all('.hidepanelicon').remove();
984 commands.all('.moveto').remove();
987 this.cachedcontentnode.one('.title').append(commands);
988 this.cachedcontentnode = null;
989 M.util.set_user_preference('docked_block_instance_'+this.id, 0);
990 this.isdocked = false;
996 * This class represents an item in the dock
997 * @class M.core_dock.item
999 * @param {YUI} Y The YUI instance to use for this item
1000 * @param {int} uid The unique ID for the item
1001 * @param {this.Y.Node} title
1002 * @param {this.Y.Node} contents
1003 * @param {this.Y.Node} commands
1004 * @param {string} blockclass
1006 M.core_dock.item = function(Y, uid, title, contents, commands, blockclass){
1008 this.publish('dockeditem:drawstart', {prefix:'dockeditem'});
1009 this.publish('dockeditem:drawcomplete', {prefix:'dockeditem'});
1010 this.publish('dockeditem:showstart', {prefix:'dockeditem'});
1011 this.publish('dockeditem:showcomplete', {prefix:'dockeditem'});
1012 this.publish('dockeditem:hidestart', {prefix:'dockeditem'});
1013 this.publish('dockeditem:hidecomplete', {prefix:'dockeditem'});
1014 this.publish('dockeditem:itemremoved', {prefix:'dockeditem'});
1015 if (uid && this.id==null) {
1018 if (title && this.title==null) {
1019 this.titlestring = title.cloneNode(true);
1020 this.title = document.createElement(title.nodeName);
1021 this.title = M.core_dock.fixTitleOrientation(this, this.title, this.titlestring.firstChild.nodeValue);
1023 if (contents && this.contents==null) {
1024 this.contents = contents;
1026 if (commands && this.commands==null) {
1027 this.commands = commands;
1029 if (blockclass && this.blockclass==null) {
1030 this.blockclass = blockclass;
1032 this.nodes = (function(){
1033 return {docktitle : null, dockitem : null, container: null};
1039 M.core_dock.item.prototype = {
1040 Y : null, // The YUI instance to use with this dock item
1041 id : null, // The unique id for the item
1042 name : null, // The name of the item
1043 title : null, // The title of the item
1044 titlestring : null, // The title as a plain string
1045 contents : null, // The content of the item
1046 commands : null, // The commands for the item
1047 active : false, // True if the item is being shown
1048 blockclass : null, // The class of the block this item relates to
1051 * This function draws the item on the dock
1054 this.fire('dockeditem:drawstart');
1057 var css = M.core_dock.css;
1059 this.nodes.docktitle = Y.Node.create('<div id="dock_item_'+this.id+'_title" role="menu" aria-haspopup="true" class="'+css.dockedtitle+'"></div>');
1060 this.nodes.docktitle.append(this.title);
1061 this.nodes.dockitem = Y.Node.create('<div id="dock_item_'+this.id+'" class="'+css.dockeditem+'" tabindex="0"></div>');
1062 this.nodes.dockitem.on('dock:actionkey', this.toggle, this);
1063 if (M.core_dock.count === 1) {
1064 this.nodes.dockitem.addClass('firstdockitem');
1066 this.nodes.dockitem.append(this.nodes.docktitle);
1067 M.core_dock.append(this.nodes.dockitem);
1068 this.fire('dockeditem:drawcomplete');
1072 * This function toggles makes the item active and shows it
1075 M.core_dock.hideActive();
1077 var css = M.core_dock.css;
1078 var panel = M.core_dock.getPanel();
1079 this.fire('dockeditem:showstart');
1080 panel.setHeader(this.titlestring, this.commands);
1081 panel.setBody(Y.Node.create('<div class="'+this.blockclass+' block_docked"></div>').append(this.contents));
1083 panel.correctWidth();
1086 // Add active item class first up
1087 this.nodes.docktitle.addClass(css.activeitem);
1088 // Set aria-exapanded property to true.
1089 this.nodes.docktitle.set('aria-expanded', "true");
1090 this.fire('dockeditem:showcomplete');
1091 M.core_dock.resize();
1095 * This function hides the item and makes it inactive
1098 var css = M.core_dock.css;
1099 this.fire('dockeditem:hidestart');
1101 this.active = false;
1102 // Remove the active class
1103 this.nodes.docktitle.removeClass(css.activeitem);
1105 M.core_dock.getPanel().hide();
1106 // Set aria-exapanded property to false
1107 this.nodes.docktitle.set('aria-expanded', "false");
1108 this.fire('dockeditem:hidecomplete');
1111 * A toggle between calling show and hide functions based on css.activeitem
1112 * Applies rules to key press events (dock:actionkey)
1115 toggle : function(e) {
1116 var css = M.core_dock.css;
1117 if (this.nodes.docktitle.hasClass(css.activeitem) && !(e.type == 'dock:actionkey' && e.action=='expand')) {
1119 } else if (!this.nodes.docktitle.hasClass(css.activeitem) && !(e.type == 'dock:actionkey' && e.action=='collapse')) {
1124 * This function removes the node and destroys it's bits
1127 remove : function () {
1129 this.nodes.dockitem.remove();
1130 this.fire('dockeditem:itemremoved');