Use Case A - Regions

See Absolute positions example.

HTML

source
outside-region-1
region
outside-region-2

Tests

Selection direction

Test A.1: Select the text from word2 to word5

Rendering: FAIL
Content: OK
Expected: Select content from next element to word5 till word6 and from word1 to previous element to word2.
Explanation: Extent position is in the region and points to word5 inside source node in the DOM Tree. And source node is before outside-region-1 node which contains base position (word2). So start is set to extent and end to base.

Highlight content mismatch

Test A.2: Select from word5 to the end of the region and move mouse out of region to the right.

Rendering: OK
Content: FAIL
Expected: Select content from word5 to word6.
Explanation: Extent position is set to region. As you're starting to select in the source node the outside-region-1 text is also included in the content of the selection. It should keep the extent at the end of the source.

Test A.3: Select from word5 to the end of the region and move mouse out of region to the right and move down.

Rendering: OK
Content: FAIL
Expected: Select content from word5 to word6.
Explanation: Extent position is set to outside-region-2. As you're starting to select in the source node the outside-region-1 text is also included in the content of the selection. It should keep the extent at the end of the source.

Wrong block gaps

Test A.4: Select from word2 to word8.

Rendering: FAIL
Content: OK
Expected: Select from word2 to word3 and from word7 to word8.
Explanation: It fills the gaps from outside-region-1 to outside-region-2 but it doesn't take into account the source element rendered inside the region in order to skip it.

Selection clearing

Test A.5: Select from word2 to word5. Then click out of the highlighted text to clear the selection.

Rendering: FAIL
Content: OK
Expected: Clear the selection and the highlighted text.
Explanation: Due to some wrong block gaps filling, the clear algorithm is not able to reach all the LayoutRects painted during the selection.

word4 inside region inside region inside region inside region inside region inside region inside region inside region inside region inside region word5 inside region inside region inside region inside region inside region inside region inside region inside region inside region inside region word6

word1 outside region outside region outside region outside region outside region outside region outside region outside region outside region word2 outside region outside region outside region outside region outside region outside region outside region outside region outside region word3

word7 outside region outside region outside region outside region outside region outside region outside region outside region outside region word8 outside region outside region outside region outside region outside region outside region outside region outside region outside region word9