Created
July 23, 2020 05:04
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| ;; Database | |
| (r/atom db {:dragging? false | |
| :pos-x 0 | |
| :pod-y 0 | |
| :select-area-templates | |
| [[:input.text-template | |
| {:draggable true | |
| :index 0 | |
| :drag-start handle-drag-start | |
| :drag-end handle-drag-end}]] | |
| :elements []}) | |
| (def form-types ["text" "textarea" "select" "radio"]) | |
| (def drag-n-drop-area {:x 500 :y 500}) | |
| ;; 10px gridlines that the elements snap to so they'll line up and shit | |
| (def grid-lines 10) | |
| (defn drag-area | |
| "Area to drag element over, use CSS to set visual area" | |
| [reset] | |
| ^{:key reset} | |
| [:div.drag-area | |
| [(:elements db)]) | |
| (defn find-x-pos []) ;; look up element prop to find position of drag area + mouse pos | |
| (defn find-y-pos []) ;; look up element prop to find position of drag area + moust pos | |
| (defn handle-drag-end | |
| "figure out position, add to elements list, call fn to render the drag and drop area" | |
| [e] | |
| (let [x (find-x-pos) | |
| y (find-y-pos) | |
| element (nth (:index e) db) | |
| positioned-element (into element {:x x :y y :style {:top y :left x})] | |
| (swap! (-> e .target) db conj :elements) | |
| (drag-area :reset) | |
| (select-area :reset)) | |
| (defn select-area | |
| "Pick out an element you want to use here" | |
| [reset] | |
| ^{:key reset} | |
| [:div.element-templates | |
| (:select-area-templates db)]) |
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