1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // TODO(arv): Now that this is driven by a data model, implement a data model
6 // that handles the loading and the events from the bookmark backend.
9 * @typedef {{childIds: Array<string>}}
11 * @see chrome/common/extensions/api/bookmarks.json
16 * @typedef {{parentId: string,
18 * oldParentId: string,
21 * @see chrome/common/extensions/api/bookmarks.json
25 cr.define('bmm', function() {
28 var List = cr.ui.List;
29 var ListItem = cr.ui.ListItem;
30 var ArrayDataModel = cr.ui.ArrayDataModel;
31 var ContextMenuButton = cr.ui.ContextMenuButton;
34 * Basic array data model for use with bookmarks.
35 * @param {!Array<!BookmarkTreeNode>} items The bookmark items.
37 * @extends {ArrayDataModel}
39 function BookmarksArrayDataModel(items) {
40 ArrayDataModel.call(this, items);
43 BookmarksArrayDataModel.prototype = {
44 __proto__: ArrayDataModel.prototype,
47 * Finds the index of the bookmark with the given ID.
48 * @param {string} id The ID of the bookmark node to find.
49 * @return {number} The index of the found node or -1 if not found.
51 findIndexById: function(id) {
52 for (var i = 0; i < this.length; i++) {
53 if (this.item(i).id == id)
61 * Removes all children and appends a new child.
62 * @param {!Node} parent The node to remove all children from.
63 * @param {!Node} newChild The new child to append.
65 function replaceAllChildren(parent, newChild) {
67 while ((n = parent.lastChild)) {
68 parent.removeChild(n);
70 parent.appendChild(newChild);
74 * Creates a new bookmark list.
75 * @param {Object=} opt_propertyBag Optional properties.
77 * @extends {cr.ui.List}
79 var BookmarkList = cr.ui.define('list');
81 BookmarkList.prototype = {
82 __proto__: List.prototype,
85 decorate: function() {
86 List.prototype.decorate.call(this);
87 this.addEventListener('mousedown', this.handleMouseDown_);
89 // HACK(arv): http://crbug.com/40902
90 window.addEventListener('resize', this.redraw.bind(this));
92 // We could add the ContextMenuButton in the BookmarkListItem but it slows
93 // down redraws a lot so we do this on mouseovers instead.
94 this.addEventListener('mouseover', this.handleMouseOver_.bind(this));
100 * @param {!BookmarkTreeNode} bookmarkNode
103 createItem: function(bookmarkNode) {
104 return new BookmarkListItem(bookmarkNode);
107 /** @private {string} */
110 /** @private {number} */
114 * Reloads the list from the bookmarks backend.
117 var parentId = this.parentId;
119 var callback = this.handleBookmarkCallback_.bind(this);
125 else if (/^q=/.test(parentId))
126 chrome.bookmarks.search(parentId.slice(2), callback);
128 chrome.bookmarks.getChildren(parentId, callback);
132 * Callback function for loading items.
133 * @param {Array<!BookmarkTreeNode>} items The loaded items.
136 handleBookmarkCallback_: function(items) {
142 // Failed to load bookmarks. Most likely due to the bookmark being
144 cr.dispatchSimpleEvent(this, 'invalidId');
148 this.dataModel = new BookmarksArrayDataModel(items);
151 cr.dispatchSimpleEvent(this, 'load');
155 * The bookmark node that the list is currently displaying. If we are
156 * currently displaying search this returns null.
157 * @type {BookmarkTreeNode}
162 var treeItem = bmm.treeLookup[this.parentId];
163 return treeItem && treeItem.bookmarkNode;
167 * @return {boolean} Whether we are currently showing search results.
169 isSearch: function() {
170 return this.parentId_[0] == 'q';
174 * @return {boolean} Whether we are editing an ephemeral item.
176 hasEphemeral: function() {
177 var dataModel = this.dataModel;
178 for (var i = 0; i < dataModel.array_.length; i++) {
179 if (dataModel.array_[i].id == 'new')
186 * Handles mouseover on the list so that we can add the context menu button
189 * @param {!Event} e The mouseover event object.
191 handleMouseOver_: function(e) {
193 while (el && el.parentNode != this) {
197 if (el && el.parentNode == this &&
199 !(el.lastChild instanceof ContextMenuButton)) {
200 el.appendChild(new ContextMenuButton);
205 * Dispatches an urlClicked event which is used to open URLs in new
208 * @param {string} url The URL that was clicked.
209 * @param {!Event} originalEvent The original click event object.
211 dispatchUrlClickedEvent_: function(url, originalEvent) {
212 var event = new Event('urlClicked', {bubbles: true});
214 event.originalEvent = originalEvent;
215 this.dispatchEvent(event);
219 * Handles mousedown events so that we can prevent the auto scroll as
222 * @param {!Event} e The mousedown event object.
224 handleMouseDown_: function(e) {
225 e = /** @type {!MouseEvent} */(e);
227 // WebKit no longer fires click events for middle clicks so we manually
228 // listen to mouse up to dispatch a click event.
229 this.addEventListener('mouseup', this.handleMiddleMouseUp_);
231 // When the user does a middle click we need to prevent the auto scroll
232 // in case the user is trying to middle click to open a bookmark in a
234 // We do not do this in case the target is an input since middle click
235 // is also paste on Linux and we don't want to break that.
236 if (e.target.tagName != 'INPUT')
242 * WebKit no longer dispatches click events for middle clicks so we need
245 * @param {!Event} e The mouse up event object.
247 handleMiddleMouseUp_: function(e) {
248 e = /** @type {!MouseEvent} */(e);
249 this.removeEventListener('mouseup', this.handleMiddleMouseUp_);
252 while (el.parentNode != this) {
255 var node = el.bookmarkNode;
256 if (node && !bmm.isFolder(node))
257 this.dispatchUrlClickedEvent_(node.url, e);
262 // Bookmark model update callbacks
263 handleBookmarkChanged: function(id, changeInfo) {
264 var dataModel = this.dataModel;
265 var index = dataModel.findIndexById(id);
267 var bookmarkNode = this.dataModel.item(index);
268 bookmarkNode.title = changeInfo.title;
269 if ('url' in changeInfo)
270 bookmarkNode.url = changeInfo['url'];
272 dataModel.updateIndex(index);
278 * @param {ReorderInfo} reorderInfo
280 handleChildrenReordered: function(id, reorderInfo) {
281 if (this.parentId == id) {
282 // We create a new data model with updated items in the right order.
283 var dataModel = this.dataModel;
285 for (var i = this.dataModel.length - 1; i >= 0; i--) {
286 var bookmarkNode = dataModel.item(i);
287 items[bookmarkNode.id] = bookmarkNode;
290 for (var i = 0; i < reorderInfo.childIds.length; i++) {
291 newArray[i] = items[reorderInfo.childIds[i]];
292 newArray[i].index = i;
295 this.dataModel = new BookmarksArrayDataModel(newArray);
299 handleCreated: function(id, bookmarkNode) {
300 if (this.parentId == bookmarkNode.parentId)
301 this.dataModel.splice(bookmarkNode.index, 0, bookmarkNode);
306 * @param {MoveInfo} moveInfo
308 handleMoved: function(id, moveInfo) {
309 if (moveInfo.parentId == this.parentId ||
310 moveInfo.oldParentId == this.parentId) {
312 var dataModel = this.dataModel;
314 if (moveInfo.oldParentId == moveInfo.parentId) {
315 // Reorder within this folder
317 this.startBatchUpdates();
319 var bookmarkNode = this.dataModel.item(moveInfo.oldIndex);
320 this.dataModel.splice(moveInfo.oldIndex, 1);
321 this.dataModel.splice(moveInfo.index, 0, bookmarkNode);
323 this.endBatchUpdates();
325 if (moveInfo.oldParentId == this.parentId) {
326 // Move out of this folder
328 var index = dataModel.findIndexById(id);
330 dataModel.splice(index, 1);
333 if (moveInfo.parentId == this.parentId) {
334 // Move to this folder
336 chrome.bookmarks.get(id, function(bookmarkNodes) {
337 var bookmarkNode = bookmarkNodes[0];
338 dataModel.splice(bookmarkNode.index, 0, bookmarkNode);
345 handleRemoved: function(id, removeInfo) {
346 var dataModel = this.dataModel;
347 var index = dataModel.findIndexById(id);
349 dataModel.splice(index, 1);
353 * Workaround for http://crbug.com/40902
356 fixWidth_: function() {
358 if (this.loadCount_ || !list)
361 // The width of the list is wrong after its content has changed.
362 // Fortunately the reported offsetWidth is correct so we can detect the
364 if (list.offsetWidth != list.parentNode.clientWidth - list.offsetLeft) {
365 // Set the width to the correct size. This causes the relayout.
366 list.style.width = list.parentNode.clientWidth - list.offsetLeft + 'px';
367 // Remove the temporary style.width in a timeout. Once the timer fires
368 // the size should not change since we already fixed the width.
369 window.setTimeout(function() {
370 list.style.width = '';
377 * The ID of the bookmark folder we are displaying.
379 cr.defineProperty(BookmarkList, 'parentId', cr.PropertyKind.JS,
385 * The contextMenu property.
387 cr.ui.contextMenuHandler.addContextMenuProperty(BookmarkList);
388 /** @type {cr.ui.Menu} */
389 BookmarkList.prototype.contextMenu;
392 * Creates a new bookmark list item.
393 * @param {!BookmarkTreeNode} bookmarkNode The bookmark node this represents.
395 * @extends {cr.ui.ListItem}
397 function BookmarkListItem(bookmarkNode) {
398 var el = cr.doc.createElement('div');
399 el.bookmarkNode = bookmarkNode;
400 BookmarkListItem.decorate(el);
405 * Decorates an element as a bookmark list item.
406 * @param {!HTMLElement} el The element to decorate.
408 BookmarkListItem.decorate = function(el) {
409 el.__proto__ = BookmarkListItem.prototype;
413 BookmarkListItem.prototype = {
414 __proto__: ListItem.prototype,
417 decorate: function() {
418 ListItem.prototype.decorate.call(this);
420 var bookmarkNode = this.bookmarkNode;
422 this.draggable = true;
424 var labelEl = this.ownerDocument.createElement('div');
425 labelEl.className = 'label';
426 labelEl.textContent = bookmarkNode.title;
428 var urlEl = this.ownerDocument.createElement('div');
429 urlEl.className = 'url';
431 if (bmm.isFolder(bookmarkNode)) {
432 this.className = 'folder';
434 labelEl.style.backgroundImage = getFaviconImageSet(bookmarkNode.url);
435 labelEl.style.backgroundSize = '16px';
436 urlEl.textContent = bookmarkNode.url;
439 this.appendChild(labelEl);
440 this.appendChild(urlEl);
442 // Initially the ContextMenuButton was added here but it slowed down
443 // rendering a lot so it is now added using mouseover.
447 * The ID of the bookmark folder we are currently showing or loading.
451 return this.bookmarkNode.id;
455 * Whether the user is currently able to edit the list item.
459 return this.hasAttribute('editing');
461 set editing(editing) {
462 var oldEditing = this.editing;
463 if (oldEditing == editing)
466 var url = this.bookmarkNode.url;
467 var title = this.bookmarkNode.title;
468 var isFolder = bmm.isFolder(this.bookmarkNode);
470 var labelEl = this.firstChild;
471 var urlEl = labelEl.nextSibling;
472 var labelInput, urlInput;
474 // Handles enter and escape which trigger reset and commit respectively.
475 function handleKeydown(e) {
476 // Make sure that the tree does not handle the key.
479 // Calling list.focus blurs the input which will stop editing the list
481 switch (e.keyIdentifier) {
482 case 'U+001B': // Esc
483 labelInput.value = title;
485 urlInput.value = url;
487 cr.dispatchSimpleEvent(listItem, 'canceledit', true);
489 if (listItem.parentNode)
490 listItem.parentNode.focus();
492 case 'U+0009': // Tab
493 // urlInput is the last focusable element in the page. If we
494 // allowed Tab focus navigation and the page loses focus, we
495 // couldn't give focus on urlInput programatically. So, we prevent
496 // Tab focus navigation.
497 if (document.activeElement == urlInput && !e.ctrlKey &&
498 !e.metaKey && !e.shiftKey && !getValidURL(urlInput)) {
506 function getValidURL(input) {
507 var originalValue = input.value;
510 if (input.validity.valid)
511 return originalValue;
512 // Blink does not do URL fix up so we manually test if prepending
513 // 'http://' would make the URL valid.
514 // https://bugs.webkit.org/show_bug.cgi?id=29235
515 input.value = 'http://' + originalValue;
516 if (input.validity.valid)
519 input.value = originalValue;
523 function handleBlur(e) {
524 // When the blur event happens we do not know who is getting focus so we
525 // delay this a bit since we want to know if the other input got focus
526 // before deciding if we should exit edit mode.
527 var doc = e.target.ownerDocument;
528 window.setTimeout(function() {
529 var activeElement = doc.hasFocus() && doc.activeElement;
530 if (activeElement != urlInput && activeElement != labelInput) {
531 listItem.editing = false;
536 var doc = this.ownerDocument;
538 this.setAttribute('editing', '');
539 this.draggable = false;
541 labelInput = /** @type {HTMLElement} */(doc.createElement('input'));
542 labelInput.placeholder =
543 loadTimeData.getString('name_input_placeholder');
544 replaceAllChildren(labelEl, labelInput);
545 labelInput.value = title;
548 urlInput = /** @type {HTMLElement} */(doc.createElement('input'));
549 urlInput.type = 'url';
550 urlInput.required = true;
551 urlInput.placeholder =
552 loadTimeData.getString('url_input_placeholder');
554 // We also need a name for the input for the CSS to work.
555 urlInput.name = '-url-input-' + cr.createUid();
556 replaceAllChildren(assert(urlEl), urlInput);
557 urlInput.value = url;
560 var stopPropagation = function(e) {
565 ['mousedown', 'mouseup', 'contextmenu', 'dblclick', 'paste'];
566 eventsToStop.forEach(function(type) {
567 labelInput.addEventListener(type, stopPropagation);
569 labelInput.addEventListener('keydown', handleKeydown);
570 labelInput.addEventListener('blur', handleBlur);
571 cr.ui.limitInputWidth(labelInput, this, 100, 0.5);
576 eventsToStop.forEach(function(type) {
577 urlInput.addEventListener(type, stopPropagation);
579 urlInput.addEventListener('keydown', handleKeydown);
580 urlInput.addEventListener('blur', handleBlur);
581 cr.ui.limitInputWidth(urlInput, this, 200, 0.5);
585 // Check that we have a valid URL and if not we do not change the
588 var urlInput = this.querySelector('.url input');
589 var newUrl = urlInput.value;
591 cr.dispatchSimpleEvent(this, 'canceledit', true);
595 newUrl = getValidURL(urlInput);
597 // In case the item was removed before getting here we should
599 if (listItem.parentNode) {
600 // Select the item again.
601 var dataModel = this.parentNode.dataModel;
602 var index = dataModel.indexOf(this.bookmarkNode);
603 var sm = this.parentNode.selectionModel;
604 sm.selectedIndex = sm.leadIndex = sm.anchorIndex = index;
606 alert(loadTimeData.getString('invalid_url'));
612 urlEl.textContent = this.bookmarkNode.url = newUrl;
615 this.removeAttribute('editing');
616 this.draggable = true;
618 labelInput = this.querySelector('.label input');
619 var newLabel = labelInput.value;
620 labelEl.textContent = this.bookmarkNode.title = newLabel;
623 if (newLabel != title) {
624 cr.dispatchSimpleEvent(this, 'rename', true);
626 } else if (newLabel != title || newUrl != url) {
627 cr.dispatchSimpleEvent(this, 'edit', true);
634 BookmarkList: BookmarkList,
635 list: /** @type {Element} */(null), // Set when decorated.