* first cut of flexible layout
* better drag handling
* add drop targets to every row
* enable drag and drop between columns and rows
* enable persistance
* add editing capability
* chage rows to frames and columns to containers, switch draggable to whole frame object
* Merge latest, resolve conflicts.
Need to just apply these changes to Deep's branch and push
* enhancements to drag targets
* WIP in flexibleLayout, container.vue files
- Refined classes and markup;
- min-width changed to flex-basis;
- Added toggle direction button;
* Significant progress but still WIP
- Refined classes and markup;
- Layout toggling working;
- Add Container working properly;
- TODOs: fix sizing in empty container, fix bordering, more refinements;
* add resizing of frames - still wip
* Significant enhancements
- Moved all CSS into flexibleLayout.vue;
- Layout now improved for empty container and drop hints;
- Proportional sizing now better for frames and containers;
* Resize handle WIP
* abstract splitter and logic into self contained component that will emit an event when mouse is moving
* Resize handle WIP
- Minor tweak to handle padding and hover;
* add container resize todo persist
* persist container resize
* add frame header, fix column resize on last column
* Refinements to resize-handle
- Fixed sizing;
- Transition on hover;
- TODOs: needs is-dragging to maintain hover style while dragging;
* fix drop hints showing after drop
* move header
* improve mouse move gesture
* Added frame size indicator
* add snapto functionality
* Refined container and frame size indicators
- Also added overflow handling to l-grid-view
* improve resizing logic
* add selection on frames
* Various resizing-frames related
- Fixed overflow - now frame widths can be collapsed to 5% minimum;
- Sizing indicators refined, better positioning and layout;
- Added grippy drag indicators to column heads;
- TODOs: add column head cursors and hover effects, hide indicators
when not in edit mode, handle nested layout and flex layouts while
editing
* Selecting and emtpy layout messaging
- Better empty layout message;
- Moved s-selected to proper element in c-fl-frame;
* Drop-hint and sizing related various
- Drop-hints for first placeholder container now display;
- Drop-hints moved into drag-wrapper;
* add delete frame
* Editing various
- Adjust Snow theme constants related to editing;
- Changed delete message wording;
* Updated icon and added description
* add toggle and remove container to toolbar
* miscellaneous cleanup
* add container button to toolbar
* improve toolbar
* code cleanup in plugin.js
* Various icons, toolbar separator
- Copied in c-toolbar__separator and associated changes in _controls
from Pegah's layout_alpha branch - may have conflicts later.
- Added separator to FL toolbar;
- Updated icons for grippy-ew, toolbar icons;
* add check for empty containers"
* logic to resize frames on drop
* fix delete frame and persisting toolbar
* Significant changes to edit / selection styling
- Both Flexible and fixed Display Layouts addressed;
- Both themes addressed;
- Changed drop-hint icon to icon-plus;
* add correct icons to frame header and fix toolbars showing up in wrong views
* Moving and resizing various
- Cursors;
- Grippy added to frame resize-handle, WIP!;
* add container reordering
* add frame/no frame support to toolbar'
* fix regression of resize handles showing after last frame in container
* force selection of flexible-layout when editing is first clicked, to apply correct toolbar
* make changes to simplify toolbar
* Modified sizing algorithm slightly
* make changes reviewer requested
* fix regression that causes top drop hint to not show
* remove unused variables and bind events to vue
* unsub selection before destroy
