The Tor Browser / file comparison
comparison: browser/base/content/newtab/cells.js
browser/base/content/newtab/cells.js
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
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| -1:000000000000 | 0:f077b2bf558a |
|---|---|
| 1 #ifdef 0 | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 4 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 #endif | |
| 6 | |
| 7 /** | |
| 8 * This class manages a cell's DOM node (not the actually cell content, a site). | |
| 9 * It's mostly read-only, i.e. all manipulation of both position and content | |
| 10 * aren't handled here. | |
| 11 */ | |
| 12 function Cell(aGrid, aNode) { | |
| 13 this._grid = aGrid; | |
| 14 this._node = aNode; | |
| 15 this._node._newtabCell = this; | |
| 16 | |
| 17 // Register drag-and-drop event handlers. | |
| 18 ["dragenter", "dragover", "dragexit", "drop"].forEach(function (aType) { | |
| 19 this._node.addEventListener(aType, this, false); | |
| 20 }, this); | |
| 21 } | |
| 22 | |
| 23 Cell.prototype = { | |
| 24 /** | |
| 25 * The grid. | |
| 26 */ | |
| 27 _grid: null, | |
| 28 | |
| 29 /** | |
| 30 * The cell's DOM node. | |
| 31 */ | |
| 32 get node() this._node, | |
| 33 | |
| 34 /** | |
| 35 * The cell's offset in the grid. | |
| 36 */ | |
| 37 get index() { | |
| 38 let index = this._grid.cells.indexOf(this); | |
| 39 | |
| 40 // Cache this value, overwrite the getter. | |
| 41 Object.defineProperty(this, "index", {value: index, enumerable: true}); | |
| 42 | |
| 43 return index; | |
| 44 }, | |
| 45 | |
| 46 /** | |
| 47 * The previous cell in the grid. | |
| 48 */ | |
| 49 get previousSibling() { | |
| 50 let prev = this.node.previousElementSibling; | |
| 51 prev = prev && prev._newtabCell; | |
| 52 | |
| 53 // Cache this value, overwrite the getter. | |
| 54 Object.defineProperty(this, "previousSibling", {value: prev, enumerable: true}); | |
| 55 | |
| 56 return prev; | |
| 57 }, | |
| 58 | |
| 59 /** | |
| 60 * The next cell in the grid. | |
| 61 */ | |
| 62 get nextSibling() { | |
| 63 let next = this.node.nextElementSibling; | |
| 64 next = next && next._newtabCell; | |
| 65 | |
| 66 // Cache this value, overwrite the getter. | |
| 67 Object.defineProperty(this, "nextSibling", {value: next, enumerable: true}); | |
| 68 | |
| 69 return next; | |
| 70 }, | |
| 71 | |
| 72 /** | |
| 73 * The site contained in the cell, if any. | |
| 74 */ | |
| 75 get site() { | |
| 76 let firstChild = this.node.firstElementChild; | |
| 77 return firstChild && firstChild._newtabSite; | |
| 78 }, | |
| 79 | |
| 80 /** | |
| 81 * Checks whether the cell contains a pinned site. | |
| 82 * @return Whether the cell contains a pinned site. | |
| 83 */ | |
| 84 containsPinnedSite: function Cell_containsPinnedSite() { | |
| 85 let site = this.site; | |
| 86 return site && site.isPinned(); | |
| 87 }, | |
| 88 | |
| 89 /** | |
| 90 * Checks whether the cell contains a site (is empty). | |
| 91 * @return Whether the cell is empty. | |
| 92 */ | |
| 93 isEmpty: function Cell_isEmpty() { | |
| 94 return !this.site; | |
| 95 }, | |
| 96 | |
| 97 /** | |
| 98 * Handles all cell events. | |
| 99 */ | |
| 100 handleEvent: function Cell_handleEvent(aEvent) { | |
| 101 // We're not responding to external drag/drop events | |
| 102 // when our parent window is in private browsing mode. | |
| 103 if (inPrivateBrowsingMode() && !gDrag.draggedSite) | |
| 104 return; | |
| 105 | |
| 106 if (aEvent.type != "dragexit" && !gDrag.isValid(aEvent)) | |
| 107 return; | |
| 108 | |
| 109 switch (aEvent.type) { | |
| 110 case "dragenter": | |
| 111 aEvent.preventDefault(); | |
| 112 gDrop.enter(this, aEvent); | |
| 113 break; | |
| 114 case "dragover": | |
| 115 aEvent.preventDefault(); | |
| 116 break; | |
| 117 case "dragexit": | |
| 118 gDrop.exit(this, aEvent); | |
| 119 break; | |
| 120 case "drop": | |
| 121 aEvent.preventDefault(); | |
| 122 gDrop.drop(this, aEvent); | |
| 123 break; | |
| 124 } | |
| 125 } | |
| 126 }; |
