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  1. 28 Feb, 2022 2 commits
  3. 25 Feb, 2022 12 commits
    • Robert Knight's avatar
      Support side-by-side mode in VitalSource PDF books · c037edd0
      Robert Knight authored 
      Support side-by-side mode in PDF books by simply resizing the content of
the page. This is similar to how side-by-side mode works in PDFs.

The width of the page in the VS PDF demo has been increased so that it
better matches the actual VS viewer, and also so that it triggers the
heuristics in the Guest class for detecting an iframe that fills the
parent frame.
      c037edd0
    • Robert Knight's avatar
      Use ResizeObserver to detect PDF image size changes · d0e2ab41
      Robert Knight authored 
      This allows the client to detect, in most supported browsers, changes in the
size and position of the PDF book image which don't affect the window
size. This will be needed to support side-by-side mode for VS PDF books.
It may also help if VS resizes the book image for any other reason.

For Safari < 13.4, we fall back to using window resize events.
      d0e2ab41
    • Robert Knight's avatar
      Expand comments for `linesOverlap` · b0492327
      Robert Knight authored
      b0492327
    • Robert Knight's avatar
      Revise a comment per code review feedback · d07daebb
      Robert Knight authored
      d07daebb
    • Robert Knight's avatar
      Preserve scroll position after toggling side-by-side mode in web pages · a3d50a93
      Robert Knight authored 
      Toggling side-by-side mode in a web page reflows the content. If the absolute
scroll position stays the same, the logical position in the document will change
and the user would have to scroll to find the content they were
previously reading.

To avoid this add logic which picks content in the viewport to use as a _scroll
anchor_, before the document is resized. After the document is resized, the
scroll position is changed so that the vertical position of the scroll anchor in
the viewport is the same as before. This keeps most of the content on screen.

The scroll anchor is currently chosen by picking the first _word_
(non-whitespace substring of a text node) which is visible in the viewport,
represented as a DOM Range. This fine-grained scroll anchor is chosen rather
than eg. just a DOM element, because long paragraphs may change in size
substantially relative to the viewport after resizing the document, so just
preserving the location of the paragraph element would not preserve the content
that is on screen.

 - Add `preserveScrollPosition` helper in html-side-by-side.js which
   picks a scroll anchor, invokes a callback and then restores the
   position of the scroll anchor.

 - Make the HTML integration use `preserveScrollPosition` to preserve
   the scroll position after activating and de-activating side-by-side
   mode

 - Add helper functions in src/annotator/util/geometry for comparing
   DOMRect objects
      a3d50a93
    • Robert Knight's avatar
      Improve/revise some comments and give a name to a threshold constant · a67f7021
      Robert Knight authored
      a67f7021
    • Robert Knight's avatar
      Take into account padding when computing free space · 974c4c0b
      Robert Knight authored 
      When computing the amount of free space between the right edge of the
main content and the edge of the sidebar, allow for the padding
allocated between the sidebar and the content. This fixes an issue where
the main content would touch the sidebar exactly instead of having a
margin between it and the content.

Also tweak the padding value slightly to be a multiple of the 4px grid
cell size used in the design system.
      974c4c0b
    • Robert Knight's avatar
      Add missing calls to `act` in `useStoreProxy` tests · afd62649
      Robert Knight authored 
      Add calls to `act` around proxy method calls that trigger store changes
which in turn schedule deferred updates within Preact components. This
should hopefully fix an issue with flakey tests due to updates being
flushed after the tests have finished executing.
      afd62649
    • Robert Knight's avatar
      Make content frame in VitalSource EPUB fill full width of window · 818a6159
      Robert Knight authored 
      This makes the VS EPUB test page more accurately reflect the real VitalSource
viewer. More importantly, it also triggers the heuristic that the Guest class
uses to decide whether to enable side-by-side mode for an iframed guest.
      818a6159
    • Robert Knight's avatar
      Enable side-by-side mode for iframe guests that fill the host page · eefac00b
      Robert Knight authored 
      To make side-by-side mode work for VitalSource EPUB books, the guest in
the VS content iframe needs to invoke the integration's `fitSideBySide`
method. This is done in a generic way by making guests in iframes call
this method, but only if they know that the iframe fills the host frame.
      eefac00b
    • Robert Knight's avatar
      Implement side-by-side mode for VitalSource EPUB books · 1a15838c
      Robert Knight authored 
      In the VitalSource integration, enable the side-by-side mode in the
underlying HTML document integration.
      1a15838c
    • Robert Knight's avatar
      Implement side-by-side mode for HTML documents · d81b73af
      Robert Knight authored 
      Implement side-by-side mode for HTML documents, disabled by default by a
a `HTMLIntegration.sideBySideEnabled` feature flag.

For ease of testing, some helpers have been split into a separate
html-side-by-side.js module.
      d81b73af
  5. 24 Feb, 2022 2 commits
  7. 22 Feb, 2022 2 commits
    • Robert Knight's avatar
      Add `yarn typecheck-no-any` command · 1c9b7334
      Robert Knight authored 
      Add a command which runs TypeScript against a subset of the codebase, currently
just src/shared/, with the `noImplicitAny` option enabled.

This will allow us to gradually work towards the goal of having the entire
client codebase typecheck with this option enabled. Once this state is reached
the `noImplicitAny` option can be enabled in the main TS config file
(src/tsconfig.json) and the `yarn typecheck-no-any` command and associated TS
config file can be removed.
      1c9b7334
    • Robert Knight's avatar
      Make src/shared/ typecheck when `noImplicitAny` is set · e9a69d14
      Robert Knight authored 
      Fix various errors and omissions found when TypeScript's `noImplicitAny`
option is enabled.
      e9a69d14
  9. 21 Feb, 2022 13 commits
  11. 16 Feb, 2022 1 commit
  13. 15 Feb, 2022 2 commits
  15. 14 Feb, 2022 6 commits