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+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed vitae +condimentum erat, ac posuere arcu. Aenean tincidunt mi ligula, vel +semper dolor aliquet at. Phasellus scelerisque dapibus diam sed rhoncus. +Proin sed orci leo. +
+
\ No newline at end of file diff --git a/Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp index 3845f93c4922cc..0624a414e17bbe 100644 --- a/Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp +++ b/Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp @@ -695,126 +695,11 @@ void GridFormattingContext::resolve_intrinsic_track_sizes(AvailableSpace const& // across those tracks insofar as possible. auto& tracks_and_gaps = dimension == GridDimension::Column ? m_grid_columns_and_gaps : m_grid_rows_and_gaps; - auto& available_size = dimension == GridDimension::Column ? available_space.width : available_space.height; // FIXME: 1. Shim baseline-aligned items so their intrinsic size contributions reflect their baseline alignment. - // 2. Size tracks to fit non-spanning items: For each track with an intrinsic track sizing function and - // not a flexible sizing function, consider the items in it with a span of 1: - - size_t index = 0; - for (auto& track : tracks_and_gaps) { - if (track.is_gap) { - ++index; - continue; - } - - Vector grid_items_of_track; - for (auto& grid_item : m_grid_items) { - if (dimension == GridDimension::Column) { - if (grid_item.gap_adjusted_column(grid_container()) == index && grid_item.raw_column_span() == 1) { - grid_items_of_track.append(grid_item); - } - } else { - if (grid_item.gap_adjusted_row(grid_container()) == index && grid_item.raw_row_span() == 1) { - grid_items_of_track.append(grid_item); - } - } - } - - if (grid_items_of_track.size() == 0) { - ++index; - continue; - } - - if (!track.min_track_sizing_function.is_intrinsic_track_sizing() && !track.max_track_sizing_function.is_intrinsic_track_sizing()) { - ++index; - continue; - } - - switch (track.min_track_sizing_function.type()) { - case CSS::GridSize::Type::MinContent: { - // If the track has a min-content min track sizing function, set its base size to the maximum of the - // items’ min-content contributions, floored at zero. - CSSPixels base_size = 0; - for (auto& item : grid_items_of_track) { - base_size = max(base_size, calculate_min_content_contribution(item, dimension)); - } - track.base_size = base_size; - } break; - case CSS::GridSize::Type::MaxContent: { - // If the track has a max-content min track sizing function, set its base size to the maximum of the - // items’ max-content contributions, floored at zero. - CSSPixels base_size = 0; - for (auto& item : grid_items_of_track) { - base_size = max(base_size, calculate_max_content_contribution(item, dimension)); - } - track.base_size = base_size; - } break; - case CSS::GridSize::Type::LengthPercentage: { - if (track.min_track_sizing_function.is_auto() && available_size.is_intrinsic_sizing_constraint()) { - // If the track has an auto min track sizing function and the grid container is being sized under a - // min-/max-content constraint, set the track’s base size to the maximum of its items’ limited - // min-/max-content contributions (respectively), floored at zero. - if (available_size.is_min_content()) { - CSSPixels base_size = 0; - for (auto& item : grid_items_of_track) { - base_size = max(base_size, calculate_limited_min_content_contribution(item, dimension)); - } - track.base_size = base_size; - } else if (available_size.is_max_content()) { - CSSPixels base_size = 0; - for (auto& item : grid_items_of_track) { - base_size = max(base_size, calculate_limited_max_content_contribution(item, dimension)); - } - track.base_size = base_size; - } - } else if (track.min_track_sizing_function.is_auto()) { - // Otherwise, set the track’s base size to the maximum of its items’ minimum contributions, floored at zero. - CSSPixels base_size = 0; - for (auto& item : grid_items_of_track) { - base_size = max(base_size, calculate_minimum_contribution(item, dimension)); - } - track.base_size = base_size; - } - - break; - } - case CSS::GridSize::Type::FlexibleLength: { - // do nothing - break; - } - default: - VERIFY_NOT_REACHED(); - } - - auto const& max_track_sizing_function = track.max_track_sizing_function; - if (max_track_sizing_function.is_min_content()) { - // If the track has a min-content max track sizing function, set its growth limit to the maximum of - // the items’ min-content contributions. - CSSPixels growth_limit = 0; - for (auto& item : grid_items_of_track) { - growth_limit = max(growth_limit, calculate_min_content_contribution(item, dimension)); - } - track.growth_limit = growth_limit; - } else if (max_track_sizing_function.is_max_content() || max_track_sizing_function.is_auto()) { - // If the track has a max-content max track sizing function, set its growth limit to the maximum of - // the items’ max-content contributions. For fit-content() maximums, furthermore clamp this growth - // limit by the fit-content() argument. - CSSPixels growth_limit = 0; - for (auto& item : grid_items_of_track) { - growth_limit = max(growth_limit, calculate_max_content_contribution(item, dimension)); - } - track.growth_limit = growth_limit; - } - - // In all cases, if a track’s growth limit is now less than its base size, increase the growth limit - // to match the base size. - if (track.growth_limit < track.base_size) - track.growth_limit = track.base_size; - - ++index; - } + // 2. Size tracks to fit non-spanning items: + increase_sizes_to_accommodate_spanning_items_crossing_content_sized_tracks(available_space, dimension, 1); // https://www.w3.org/TR/css-grid-2/#auto-repeat // The auto-fit keyword behaves the same as auto-fill, except that after grid item placement any @@ -847,7 +732,7 @@ void GridFormattingContext::resolve_intrinsic_track_sizes(AvailableSpace const& for (auto& item : m_grid_items) max_item_span = max(item.span(dimension), max_item_span); for (size_t span = 2; span <= max_item_span; span++) { - increase_sizes_to_accommodate_spanning_items_crossing_content_sized_tracks(dimension, 2); + increase_sizes_to_accommodate_spanning_items_crossing_content_sized_tracks(available_space, dimension, 2); } // 4. Increase sizes to accommodate spanning items crossing flexible tracks: Next, repeat the previous @@ -862,17 +747,12 @@ void GridFormattingContext::resolve_intrinsic_track_sizes(AvailableSpace const& track.growth_limit = track.base_size; } } - - for (auto& track : tracks_and_gaps) - track.has_definite_base_size = true; } -void GridFormattingContext::distribute_extra_space_across_spanned_tracks(CSSPixels item_size_contribution, Vector& spanned_tracks) +void GridFormattingContext::distribute_extra_space_across_spanned_tracks_base_size(CSSPixels item_size_contribution, Vector& spanned_tracks) { - for (auto& track : spanned_tracks) { - track.planned_increase = 0; + for (auto& track : spanned_tracks) track.item_incurred_increase = 0; - } // 1. Find the space to distribute: CSSPixels spanned_tracks_sizes_sum = 0; @@ -884,8 +764,10 @@ void GridFormattingContext::distribute_extra_space_across_spanned_tracks(CSSPixe auto extra_space = max(CSSPixels(0), item_size_contribution - spanned_tracks_sizes_sum); // 2. Distribute space up to limits: - while (extra_space > 0) { - auto all_frozen = all_of(spanned_tracks, [](auto const& track) { return track.frozen; }); + // FIXME: If a fixed-point type were used to represent CSS pixels, it would be possible to compare with 0 + // instead of epsilon. + while (extra_space > NumericLimits().epsilon()) { + auto all_frozen = all_of(spanned_tracks, [](auto const& track) { return track.base_size_frozen; }); if (all_frozen) break; @@ -894,11 +776,11 @@ void GridFormattingContext::distribute_extra_space_across_spanned_tracks(CSSPixe // increase reaches its limit CSSPixels increase_per_track = extra_space / spanned_tracks.size(); for (auto& track : spanned_tracks) { - if (track.frozen) + if (track.base_size_frozen) continue; if (increase_per_track >= track.growth_limit) { - track.frozen = true; + track.base_size_frozen = true; track.item_incurred_increase = track.growth_limit; extra_space -= track.growth_limit; } else { @@ -918,8 +800,68 @@ void GridFormattingContext::distribute_extra_space_across_spanned_tracks(CSSPixe } } -void GridFormattingContext::increase_sizes_to_accommodate_spanning_items_crossing_content_sized_tracks(GridDimension const dimension, size_t span) +void GridFormattingContext::distribute_extra_space_across_spanned_tracks_growth_limit(CSSPixels item_size_contribution, Vector& spanned_tracks) +{ + for (auto& track : spanned_tracks) + track.item_incurred_increase = 0; + + // 1. Find the space to distribute: + CSSPixels spanned_tracks_sizes_sum = 0; + for (auto& track : spanned_tracks) { + if (track.growth_limit != INFINITY) { + spanned_tracks_sizes_sum += track.growth_limit; + } else { + spanned_tracks_sizes_sum += track.base_size; + } + } + + // Subtract the corresponding size of every spanned track from the item’s size contribution to find the item’s + // remaining size contribution. + auto extra_space = max(CSSPixels(0), item_size_contribution - spanned_tracks_sizes_sum); + + // 2. Distribute space up to limits: + // FIXME: If a fixed-point type were used to represent CSS pixels, it would be possible to compare with 0 + // instead of epsilon. + while (extra_space > NumericLimits().epsilon()) { + auto all_frozen = all_of(spanned_tracks, [](auto const& track) { return track.growth_limit_frozen; }); + if (all_frozen) + break; + + // Find the item-incurred increase for each spanned track with an affected size by: distributing the space + // equally among such tracks, freezing a track’s item-incurred increase as its affected size + item-incurred + // increase reaches its limit + CSSPixels increase_per_track = extra_space / spanned_tracks.size(); + for (auto& track : spanned_tracks) { + if (track.growth_limit_frozen) + continue; + + // For growth limits, the limit is infinity if it is marked as infinitely growable, and equal to the + // growth limit otherwise. + auto limit = track.infinitely_growable ? INFINITY : track.growth_limit; + if (increase_per_track >= limit) { + track.growth_limit_frozen = true; + track.item_incurred_increase = limit; + extra_space -= limit; + } else { + track.item_incurred_increase += increase_per_track; + extra_space -= increase_per_track; + } + } + } + + // FIXME: 3. Distribute space beyond limits + + // 4. For each affected track, if the track’s item-incurred increase is larger than the track’s planned increase + // set the track’s planned increase to that value. + for (auto& track : spanned_tracks) { + if (track.item_incurred_increase > track.planned_increase) + track.planned_increase = track.item_incurred_increase; + } +} + +void GridFormattingContext::increase_sizes_to_accommodate_spanning_items_crossing_content_sized_tracks(AvailableSpace const& available_space, GridDimension const dimension, size_t span) { + auto& available_size = dimension == GridDimension::Column ? available_space.width : available_space.height; auto& tracks = dimension == GridDimension::Column ? m_grid_columns : m_grid_rows; for (auto& item : m_grid_items) { auto const item_span = item.span(dimension); @@ -944,11 +886,51 @@ void GridFormattingContext::increase_sizes_to_accommodate_spanning_items_crossin if (track.min_track_sizing_function.is_intrinsic_track_sizing()) intrinsic_minimum_spanned_tracks.append(track); } - auto item_minimum_contribution = calculate_minimum_contribution(item, dimension); - distribute_extra_space_across_spanned_tracks(item_minimum_contribution, intrinsic_minimum_spanned_tracks); + auto item_size_contribution = [&] { + // If the grid container is being sized under a min- or max-content constraint, use the items’ limited + // min-content contributions in place of their minimum contributions here. + if (available_size.is_intrinsic_sizing_constraint()) + return calculate_limited_min_content_contribution(item, dimension); + return calculate_minimum_contribution(item, dimension); + }(); + distribute_extra_space_across_spanned_tracks_base_size(item_size_contribution, intrinsic_minimum_spanned_tracks); + for (auto& track : spanned_tracks) { + track.base_size += track.planned_increase; + track.planned_increase = 0; + } + // 2. For content-based minimums: Next continue to increase the base size of tracks with a min track + // sizing function of min-content or max-content by distributing extra space as needed to account for + // these items' min-content contributions. + Vector content_based_minimum_tracks; + for (auto& track : spanned_tracks) { + if (track.min_track_sizing_function.is_min_content() || track.min_track_sizing_function.is_max_content()) { + content_based_minimum_tracks.append(track); + } + } + auto item_min_content_contribution = calculate_min_content_contribution(item, dimension); + distribute_extra_space_across_spanned_tracks_base_size(item_min_content_contribution, content_based_minimum_tracks); for (auto& track : spanned_tracks) { track.base_size += track.planned_increase; + track.planned_increase = 0; + } + + // 3. For max-content minimums: Next, if the grid container is being sized under a max-content constraint, + // continue to increase the base size of tracks with a min track sizing function of auto or max-content by + // distributing extra space as needed to account for these items' limited max-content contributions. + if (available_size.is_max_content()) { + Vector max_content_minimum_tracks; + for (auto& track : spanned_tracks) { + if (track.min_track_sizing_function.is_auto() || track.min_track_sizing_function.is_max_content()) { + max_content_minimum_tracks.append(track); + } + } + auto item_limited_max_content_contribution = calculate_limited_max_content_contribution(item, dimension); + distribute_extra_space_across_spanned_tracks_base_size(item_limited_max_content_contribution, max_content_minimum_tracks); + for (auto& track : spanned_tracks) { + track.base_size += track.planned_increase; + track.planned_increase = 0; + } } // 4. If at this point any track’s growth limit is now less than its base size, increase its growth limit to @@ -957,6 +939,49 @@ void GridFormattingContext::increase_sizes_to_accommodate_spanning_items_crossin if (track.growth_limit < track.base_size) track.growth_limit = track.base_size; } + + // 5. For intrinsic maximums: Next increase the growth limit of tracks with an intrinsic max track sizing + Vector intrinsic_maximum_tracks; + for (auto& track : spanned_tracks) { + if (track.max_track_sizing_function.is_intrinsic_track_sizing()) { + intrinsic_maximum_tracks.append(track); + } + } + distribute_extra_space_across_spanned_tracks_growth_limit(item_min_content_contribution, intrinsic_maximum_tracks); + for (auto& track : spanned_tracks) { + if (track.growth_limit == INFINITY) { + // If the affected size is an infinite growth limit, set it to the track’s base size plus the planned increase. + track.growth_limit = track.base_size + track.planned_increase; + // Mark any tracks whose growth limit changed from infinite to finite in this step as infinitely growable + // for the next step. + track.infinitely_growable = true; + } else { + track.growth_limit += track.planned_increase; + } + track.planned_increase = 0; + } + + // 6. For max-content maximums: Lastly continue to increase the growth limit of tracks with a max track + // sizing function of max-content by distributing extra space as needed to account for these items' max- + // content contributions. + Vector max_content_maximum_tracks; + for (auto& track : spanned_tracks) { + if (track.max_track_sizing_function.is_max_content() || track.max_track_sizing_function.is_auto()) { + max_content_maximum_tracks.append(track); + } + } + + auto item_max_content_contribution = calculate_max_content_contribution(item, dimension); + distribute_extra_space_across_spanned_tracks_growth_limit(item_max_content_contribution, max_content_maximum_tracks); + for (auto& track : spanned_tracks) { + if (track.growth_limit == INFINITY) { + // If the affected size is an infinite growth limit, set it to the track’s base size plus the planned increase. + track.growth_limit = track.base_size + track.planned_increase; + } else { + track.growth_limit += track.planned_increase; + } + track.planned_increase = 0; + } } } @@ -983,7 +1008,7 @@ void GridFormattingContext::increase_sizes_to_accommodate_spanning_items_crossin spanned_flexible_tracks.append(track); } auto item_minimum_contribution = automatic_minimum_size(item, dimension); - distribute_extra_space_across_spanned_tracks(item_minimum_contribution, spanned_flexible_tracks); + distribute_extra_space_across_spanned_tracks_base_size(item_minimum_contribution, spanned_flexible_tracks); for (auto& track : spanned_tracks) { track.base_size += track.planned_increase; diff --git a/Userland/Libraries/LibWeb/Layout/GridFormattingContext.h b/Userland/Libraries/LibWeb/Layout/GridFormattingContext.h index 9e83854c8910e5..6d95022590885b 100644 --- a/Userland/Libraries/LibWeb/Layout/GridFormattingContext.h +++ b/Userland/Libraries/LibWeb/Layout/GridFormattingContext.h @@ -104,13 +104,18 @@ class GridFormattingContext final : public FormattingContext { struct TemporaryTrack { CSS::GridSize min_track_sizing_function; CSS::GridSize max_track_sizing_function; + CSSPixels base_size { 0 }; - bool has_definite_base_size { false }; + bool base_size_frozen { false }; + CSSPixels growth_limit { 0 }; + bool growth_limit_frozen { false }; + bool infinitely_growable { false }; + CSSPixels space_to_distribute { 0 }; CSSPixels planned_increase { 0 }; CSSPixels item_incurred_increase { 0 }; - bool frozen { false }; + bool is_gap { false }; TemporaryTrack(CSS::GridSize min_track_sizing_function, CSS::GridSize max_track_sizing_function) @@ -216,8 +221,9 @@ class GridFormattingContext final : public FormattingContext { void initialize_track_sizes(AvailableSpace const&, GridDimension const); void resolve_intrinsic_track_sizes(AvailableSpace const&, GridDimension const); - void distribute_extra_space_across_spanned_tracks(CSSPixels item_size_contribution, Vector& spanned_tracks); - void increase_sizes_to_accommodate_spanning_items_crossing_content_sized_tracks(GridDimension const, size_t span); + void distribute_extra_space_across_spanned_tracks_base_size(CSSPixels item_size_contribution, Vector& spanned_tracks); + void distribute_extra_space_across_spanned_tracks_growth_limit(CSSPixels item_size_contribution, Vector& spanned_tracks); + void increase_sizes_to_accommodate_spanning_items_crossing_content_sized_tracks(AvailableSpace const&, GridDimension const, size_t span); void increase_sizes_to_accommodate_spanning_items_crossing_flexible_tracks(GridDimension const); void maximize_tracks(AvailableSpace const&, GridDimension const); void expand_flexible_tracks(AvailableSpace const&, GridDimension const);