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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <script src='../resources/testharness.js'></script> |
| 3 <script src='../resources/testharnessreport.js'></script> |
| 4 <script src='resources/shadow-dom.js'></script> |
| 5 <style> |
| 6 .container { position: relative; } |
| 7 </style> |
| 8 |
| 9 <!-- |
| 10 When both the context object and the real offset parent is in the same |
| 11 node tree, offsetParent doesn't perform any adjustment. |
| 12 --> |
| 13 <div id='host_open0'> |
| 14 <template data-mode='open' data-expose-as='root_open0'> |
| 15 <style>.container { position: relative; }</style> |
| 16 <div id='container' class='container'> |
| 17 <div id='inner_node'>X</div> |
| 18 </div> |
| 19 </template> |
| 20 </div> |
| 21 |
| 22 <div id='host_closed0'> |
| 23 <template data-mode='closed' data-expose-as='root_closed0'> |
| 24 <style>.container { position: relative; }</style> |
| 25 <div id='container' class='container'> |
| 26 <div id='inner_node'>X</div> |
| 27 </div> |
| 28 </template> |
| 29 </div> |
| 30 |
| 31 <script> |
| 32 test(() => { |
| 33 convertTemplatesToShadowRootsWithin(host_open0); |
| 34 let container = root_open0.querySelector('#container'); |
| 35 let inner_node = root_open0.querySelector('#inner_node'); |
| 36 assert_equals(inner_node.offsetParent, container); |
| 37 }, 'offsetParent should return node in the same node tree in open shadow root.')
; |
| 38 |
| 39 test(() => { |
| 40 convertTemplatesToShadowRootsWithin(host_closed0); |
| 41 let container = root_closed0.querySelector('#container'); |
| 42 let inner_node = root_closed0.querySelector('#inner_node'); |
| 43 assert_equals(inner_node.offsetParent, container); |
| 44 }, 'offsetParent should return node in the same node tree in closed shadow root.
'); |
| 45 </script> |
| 46 |
| 47 <!-- |
| 48 Even when the real offsetParent is in a closed shadow tree, |
| 49 if it is unclosed to the context object, that parent should be returned. |
| 50 --> |
| 51 <div id='host_open1'> |
| 52 <template data-mode='open' data-expose-as='root_open1'> |
| 53 <style>.container { position: relative; }</style> |
| 54 <div id='inner_host' class='container'> |
| 55 <template data-mode='closed' data-expose-as='root_closed_inner1'> |
| 56 <div id='inner_node'>X</div> |
| 57 </template> |
| 58 </div> |
| 59 </template> |
| 60 </div> |
| 61 |
| 62 <div id='host_closed1'> |
| 63 <template data-mode='closed' data-expose-as='root_closed1'> |
| 64 <style>.container { position: relative; }</style> |
| 65 <div id='inner_host' class='container'> |
| 66 <template data-mode='open' data-expose-as='root_open_inner1'> |
| 67 <div id='inner_node'>X</div> |
| 68 </template> |
| 69 </div> |
| 70 </template> |
| 71 </div> |
| 72 |
| 73 <script> |
| 74 test(() => { |
| 75 convertTemplatesToShadowRootsWithin(host_open1); |
| 76 let inner_host = root_open1.querySelector('#inner_host'); |
| 77 let inner_node = root_closed_inner1.querySelector('#inner_node'); |
| 78 assert_equals(inner_node.offsetParent, inner_host); |
| 79 }, 'offsetParent should return an unclosed node in a open shadow from closed sha
dow.'); |
| 80 |
| 81 test(() => { |
| 82 convertTemplatesToShadowRootsWithin(host_closed1); |
| 83 let inner_host = root_closed1.querySelector('#inner_host'); |
| 84 let inner_node = root_open_inner1.querySelector('#inner_node'); |
| 85 assert_equals(inner_node.offsetParent, inner_host); |
| 86 }, 'offsetParent should return an unclosed node in a closed shadow from open sha
dow.'); |
| 87 </script> |
| 88 |
| 89 <!-- |
| 90 #host_open2 and #host_closed2 have the same structure, and #target_open2 / |
| 91 #target_closed2 are slotted into each shadow slot, then real offsetParent would |
| 92 be in the shadow. For the closed shadow, such element should not leak to the |
| 93 light DOM, so it is adjusted to the nearest unclosed offsetParent. |
| 94 |
| 95 See also |
| 96 https://github.com/w3c/webcomponents/issues/497 |
| 97 https://github.com/w3c/csswg-drafts/issues/159 |
| 98 --> |
| 99 <div id='host_open2' class='container'> |
| 100 <template data-mode='open' data-expose-as='root_open2'> |
| 101 <style>.container { position: relative; color: green; }</style> |
| 102 <div id='container_open' class='container'> |
| 103 <slot name='x'></slot> |
| 104 </div> |
| 105 </template> |
| 106 <span id='target_open2' slot='x'>X</span> |
| 107 </div> |
| 108 |
| 109 <div id='host_closed2' class='container'> |
| 110 <template data-mode='closed' data-expose-as='root_closed2'> |
| 111 <style>.container { position: relative; color: red; }</style> |
| 112 <div id='container_closed' class='container'> |
| 113 <slot name='x'></slot> |
| 114 </div> |
| 115 </template> |
| 116 <span id='target_closed2' slot='x'>X</span> |
| 117 </div> |
| 118 |
| 119 <script> |
| 120 test(() => { |
| 121 convertTemplatesToShadowRootsWithin(host_open2); |
| 122 convertTemplatesToShadowRootsWithin(host_closed2); |
| 123 |
| 124 assert_equals(target_open2.offsetParent.id, 'container_open'); |
| 125 assert_equals(target_closed2.offsetParent.id, 'host_closed2'); |
| 126 }, 'offsetParent should return an unclosed node.'); |
| 127 </script> |
| 128 |
| 129 <!-- |
| 130 Check if offsetParent can properly traverse up to find unclosed node. |
| 131 In the following example, #target_closed3 will distributed to slot y, |
| 132 but its offsetParent should neither return #inner_node nor #inner_host. |
| 133 --> |
| 134 <div id='host_closed3' class='container'> |
| 135 <template data-mode='closed' data-expose-as='root_closed3'> |
| 136 <style>.container { position: relative; }</style> |
| 137 <div id='inner_host' class='container'> |
| 138 <template data-mode='closed' data-expose-as='root_closed_inner3'> |
| 139 <style>.container { position: relative; }</style> |
| 140 <div id='inner_node' class='container'> |
| 141 <slot name='y'></slot> |
| 142 </div> |
| 143 </template> |
| 144 <slot name='x' slot='y'></slot> |
| 145 </div> |
| 146 </template> |
| 147 <span id='target_closed3' slot='x'>Z</span> |
| 148 </div> |
| 149 |
| 150 <script> |
| 151 test(() => { |
| 152 convertTemplatesToShadowRootsWithin(host_closed3); |
| 153 let slot_y = root_closed_inner3.querySelector('slot[name=y]'); |
| 154 assert_array_equals(slot_y.assignedNodes({flatten: true}), [target_closed3]); |
| 155 assert_equals(target_closed3.offsetParent.id, 'host_closed3'); |
| 156 }, 'offsetParent should skip any non-unclosed nodes.'); |
| 157 </script> |
| 158 |
| 159 <!-- |
| 160 Yet another test case if the check for unclosed node is working as expected. |
| 161 inner_node.offsetParent should neither return #host_closed4 (unclosed, but its |
| 162 position is static) nor #host_open4 (as #container is the closer unclosed parent
). |
| 163 As #container is unclosed to #inner_node, inner_node.offsetParent should return |
| 164 #container. |
| 165 --> |
| 166 <div id='host_open4' class='container'> |
| 167 <template data-mode='open' data-expose-as='root_open4'> |
| 168 <style>.container { position: relative; }</style> |
| 169 <div id='container' class='container'> |
| 170 <slot name='x'></slot> |
| 171 </div> |
| 172 </template> |
| 173 <div id='host_closed4' slot='x'> |
| 174 <template data-mode='closed' data-expose-as='root_closed4'> |
| 175 <div id='inner_node'>Y</div> |
| 176 </template> |
| 177 </div> |
| 178 </div> |
| 179 |
| 180 <script> |
| 181 test(() => { |
| 182 convertTemplatesToShadowRootsWithin(host_open4); |
| 183 let container = root_open4.querySelector('#container'); |
| 184 let inner_node = root_closed4.querySelector('#inner_node'); |
| 185 assert_equals(inner_node.offsetParent, container); |
| 186 }, 'offsetParent should return node in the open shadow root because it is unclos
ed.'); |
| 187 </script> |
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Chromium Code Reviews
Issue 2051703002:
Implement closed shadow adjustment for Element.offsetParent (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master