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| 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 the context object is in a closed shadow tree, it can return the real |
| 11 offset parent above the shadow tree, as it is unclosed. |
| 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 <script> |
| 23 convertTemplatesToShadowRootsWithin(host_open0); |
| 24 |
| 25 test(() => { |
| 26 let container = root_open0.querySelector('#container'); |
| 27 let inner_node = root_open0.querySelector('#inner_node'); |
| 28 assert_equals(inner_node.offsetParent, container); |
| 29 }, 'offsetParent should return node in the same node tree in open shadow root.')
; |
| 30 </script> |
| 31 |
| 32 <!-- |
| 33 When the real offsetParent is in a closed shadow tree, if it is unclosed to the |
| 34 context object, that parent should be returned. |
| 35 --> |
| 36 <div id='host_closed0'> |
| 37 <template data-mode='closed' data-expose-as='root_closed0'> |
| 38 <style>.container { position: relative; }</style> |
| 39 <div id='container' class='container'> |
| 40 <div id='inner_node'>X</div> |
| 41 </div> |
| 42 </template> |
| 43 </div> |
| 44 |
| 45 <script> |
| 46 convertTemplatesToShadowRootsWithin(host_closed0); |
| 47 |
| 48 test(() => { |
| 49 let container = root_closed0.querySelector('#container'); |
| 50 let inner_node = root_closed0.querySelector('#inner_node'); |
| 51 assert_equals(inner_node.offsetParent, container); |
| 52 }, 'offsetParent should return node in the same node tree in closed shadow root.
'); |
| 53 </script> |
| 54 |
| 55 <!-- |
| 56 When the real offsetParent is in a closed shadow tree, if it is unclosed to the |
| 57 context object, that parent should be returned. |
| 58 --> |
| 59 <div id='host_closed1'> |
| 60 <template data-mode='closed' data-expose-as='root_closed1'> |
| 61 <style>.container { position: relative; }</style> |
| 62 <div id='inner_host' class='container'> |
| 63 <template data-mode='open' data-expose-as='root_open_inner1'> |
| 64 <div id='inner_node'>X</div> |
| 65 </template> |
| 66 </div> |
| 67 </template> |
| 68 </div> |
| 69 |
| 70 <script> |
| 71 convertTemplatesToShadowRootsWithin(host_closed1); |
| 72 |
| 73 test(() => { |
| 74 let inner_host = root_closed1.querySelector('#inner_host'); |
| 75 let inner_node = root_open_inner1.querySelector('#inner_node'); |
| 76 assert_equals(inner_node.offsetParent, inner_host); |
| 77 }, 'offsetParent should return an unclosed node in a closed shadow from open sha
dow.'); |
| 78 </script> |
| 79 |
| 80 <!-- |
| 81 When the context object is in a closed shadow tree, it can return the real |
| 82 offset parent above the shadow tree, as it is unclosed. |
| 83 --> |
| 84 <div id='host_open1'> |
| 85 <template data-mode='open' data-expose-as='root_open1'> |
| 86 <style>.container { position: relative; }</style> |
| 87 <div id='inner_host' class='container'> |
| 88 <template data-mode='closed' data-expose-as='root_closed_inner1'> |
| 89 <div id='inner_node'>X</div> |
| 90 </template> |
| 91 </div> |
| 92 </template> |
| 93 </div> |
| 94 |
| 95 <script> |
| 96 convertTemplatesToShadowRootsWithin(host_open1); |
| 97 |
| 98 test(() => { |
| 99 let inner_host = root_open1.querySelector('#inner_host'); |
| 100 let inner_node = root_closed_inner1.querySelector('#inner_node'); |
| 101 assert_equals(inner_node.offsetParent, inner_host); |
| 102 }, 'offsetParent should return an unclosed node in a open shadow from closed sha
dow.'); |
| 103 </script> |
| 104 |
| 105 <!-- |
| 106 #host_open and #host_closed have the same structure, and #target_open / |
| 107 #target_closed are slotted into each shadow slot, then real offsetParent would |
| 108 be in the shadow. For the closed shadow, such element should not leak to the |
| 109 light DOM, so it is adjusted to the nearest unclosed offsetParent. |
| 110 |
| 111 See also |
| 112 https://github.com/w3c/webcomponents/issues/497 |
| 113 https://github.com/w3c/csswg-drafts/issues/159 |
| 114 --> |
| 115 <div id='host_open2' class='container'> |
| 116 <template data-mode='open' data-expose-as='root_open2'> |
| 117 <style>.container { position: relative; }</style> |
| 118 <div id='container_open' class='container'> |
| 119 <slot name='x'></slot> |
| 120 </div> |
| 121 </template> |
| 122 <span id='target_open' slot='x'>X</span> |
| 123 </div> |
| 124 |
| 125 <div id='host_closed2' class='container'> |
| 126 <template data-mode='closed' data-expose-as='root_closed2'> |
| 127 <style>.container { position: relative; }</style> |
| 128 <div id='container_closed' class='container'> |
| 129 <slot name='x'></slot> |
| 130 </div> |
| 131 </template> |
| 132 <span id='target_closed' slot='x'>Y</span> |
| 133 </div> |
| 134 |
| 135 <script> |
| 136 convertTemplatesToShadowRootsWithin(host_open2); |
| 137 convertTemplatesToShadowRootsWithin(host_closed2); |
| 138 |
| 139 test(() => { |
| 140 assert_equals(target_open.offsetParent.id, 'container_open'); |
| 141 assert_equals(target_closed.offsetParent.id, 'host_closed2'); |
| 142 }, 'offsetParent should return an unclosed node.'); |
| 143 </script> |
| 144 |
| 145 <!-- |
| 146 Check if offsetParent can properly traverse up to find unclosed node. |
| 147 In the following example, #target_closed3 will distributed to slot y, |
| 148 but its offsetParent should neither return #inner_node nor #inner_host. |
| 149 --> |
| 150 |
| 151 <div id='host_closed3' class='container'> |
| 152 <template data-mode='closed' data-expose-as='root_closed3'> |
| 153 <style>.container { position: relative; }</style> |
| 154 <div id='inner_host' class='container'> |
| 155 <template data-mode='closed' data-expose-as='root_closed_inner3'> |
| 156 <style>.container { position: relative; }</style> |
| 157 <div id='inner_node' class='container'> |
| 158 <slot name='y'></slot> |
| 159 </div> |
| 160 </template> |
| 161 <slot name='x' slot='y'></slot> |
| 162 </div> |
| 163 </template> |
| 164 <span id='target_closed3' slot='x'>Z</span> |
| 165 </div> |
| 166 |
| 167 <script> |
| 168 convertTemplatesToShadowRootsWithin(host_closed3); |
| 169 |
| 170 test(() => { |
| 171 let slot_y = root_closed_inner3.querySelector('slot[name=y]'); |
| 172 assert_array_equals(slot_y.assignedNodes({flatten: true}), [target_closed3]); |
| 173 assert_equals(target_closed3.offsetParent.id, 'host_closed3'); |
| 174 }, 'offsetParent should skip any non-unclosed nodes.'); |
| 175 </script> |
| 176 |
| 177 <!-- |
| 178 Yet another test case if the check for unclosed node is working as expected. |
| 179 #inner_node is inside slotted closed shadow tree, but #container should be |
| 180 unclosed to #inner_node. |
| 181 --> |
| 182 <div id='host_open4'> |
| 183 <template data-mode='open' data-expose-as='root_open4'> |
| 184 <style>.container { position: relative; }</style> |
| 185 <div id='container' class='container'> |
| 186 <slot name='x'></slot> |
| 187 </div> |
| 188 </template> |
| 189 <div id='host_closed4' slot='x'> |
| 190 <template data-mode='closed' data-expose-as='root_closed4'> |
| 191 <style>.container { position: relative; }</style> |
| 192 <div id='inner_node'>Y</div> |
| 193 </template> |
| 194 </div> |
| 195 </div> |
| 196 |
| 197 <script> |
| 198 convertTemplatesToShadowRootsWithin(host_open4); |
| 199 |
| 200 test(() => { |
| 201 let container = root_open4.querySelector('#container'); |
| 202 let inner_node = root_closed4.querySelector('#inner_node'); |
| 203 assert_equals(inner_node.offsetParent, container); |
| 204 }, 'offsetParent should return node in the open shadow root because it is unclos
ed.'); |
| 205 </script> |
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