OLD | NEW |
---|---|
1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 /** | 5 /** |
6 * @fileoverview 'cr-dialog' is a component for showing a modal dialog. If the | 6 * @fileoverview 'cr-dialog' is a component for showing a modal dialog. If the |
7 * dialog is closed via close(), a 'close' event is fired. If the dialog is | 7 * dialog is closed via close(), a 'close' event is fired. If the dialog is |
8 * canceled via cancel(), a 'cancel' event is fired followed by a 'close' event. | 8 * canceled via cancel(), a 'cancel' event is fired followed by a 'close' event. |
9 * Additionally clients can inspect the dialog's |returnValue| property inside | 9 * Additionally clients can inspect the dialog's |returnValue| property inside |
10 * the 'close' event listener to determine whether it was canceled or just | 10 * the 'close' event listener to determine whether it was canceled or just |
(...skipping 11 matching lines...) Expand all Loading... | |
22 closeText: String, | 22 closeText: String, |
23 | 23 |
24 /** | 24 /** |
25 * True if the dialog should remain open on 'popstate' events. This is used | 25 * True if the dialog should remain open on 'popstate' events. This is used |
26 * for navigable dialogs that have their separate navigation handling code. | 26 * for navigable dialogs that have their separate navigation handling code. |
27 */ | 27 */ |
28 ignorePopstate: { | 28 ignorePopstate: { |
29 type: Boolean, | 29 type: Boolean, |
30 value: false, | 30 value: false, |
31 }, | 31 }, |
32 | |
33 showScrollBorders: { | |
34 type: Boolean, | |
35 value: false, | |
36 reflectToAttribute: true, | |
37 }, | |
32 }, | 38 }, |
33 | 39 |
40 /** @private {?IntersectionObserver} */ | |
41 intersectionObserver_: null, | |
42 | |
34 /** @override */ | 43 /** @override */ |
35 ready: function() { | 44 ready: function() { |
36 // If the active history entry changes (i.e. user clicks back button), | 45 // If the active history entry changes (i.e. user clicks back button), |
37 // all open dialogs should be cancelled. | 46 // all open dialogs should be cancelled. |
38 window.addEventListener('popstate', function() { | 47 window.addEventListener('popstate', function() { |
39 if (!this.ignorePopstate && this.open) | 48 if (!this.ignorePopstate && this.open) |
40 this.cancel(); | 49 this.cancel(); |
41 }.bind(this)); | 50 }.bind(this)); |
42 }, | 51 }, |
43 | 52 |
53 /** @override */ | |
54 attached: function() { | |
55 if (this.showScrollBorders) { | |
56 var bodyContainer = this.$$('.body-container'); | |
57 | |
58 var callback = function(entries) { | |
59 assert(entries.length == 1); | |
60 entries[0].intersectionRatio == 0 ? | |
dpapad
2017/03/30 18:25:00
Can you simplify this, similar to https://coderevi
scottchen
2017/03/30 19:24:34
Done.
| |
61 bodyContainer.classList.add('bottom-scrollable') : | |
62 bodyContainer.classList.remove('bottom-scrollable'); | |
63 }; | |
64 | |
65 this.intersectionObserver_ = new IntersectionObserver(callback, { | |
66 root: bodyContainer, | |
67 threshold: 0, | |
68 }); | |
69 this.intersectionObserver_.observe(this.$.bodyBottomMarker); | |
70 } | |
71 }, | |
72 | |
73 /** @override */ | |
74 detached: function() { | |
75 if (this.intersectionObserver_) { | |
76 this.intersectionObserver_.disconnect(); | |
77 this.intersectionObserver_ = null; | |
78 } | |
79 }, | |
80 | |
44 cancel: function() { | 81 cancel: function() { |
45 this.fire('cancel'); | 82 this.fire('cancel'); |
46 HTMLDialogElement.prototype.close.call(this, ''); | 83 HTMLDialogElement.prototype.close.call(this, ''); |
47 }, | 84 }, |
48 | 85 |
49 /** | 86 /** |
50 * @param {string=} opt_returnValue | 87 * @param {string=} opt_returnValue |
51 * @override | 88 * @override |
52 */ | 89 */ |
53 close: function(opt_returnValue) { | 90 close: function(opt_returnValue) { |
54 HTMLDialogElement.prototype.close.call(this, 'success'); | 91 HTMLDialogElement.prototype.close.call(this, 'success'); |
55 }, | 92 }, |
56 | 93 |
57 /** @return {!PaperIconButtonElement} */ | 94 /** @return {!PaperIconButtonElement} */ |
58 getCloseButton: function() { | 95 getCloseButton: function() { |
59 return this.$.close; | 96 return this.$.close; |
60 }, | 97 }, |
61 }); | 98 }); |
OLD | NEW |