const photo_clipboard = {}; photo_clipboard.clipboard = new Set(); photo_clipboard.on_load_hooks = []; photo_clipboard.on_save_hooks = []; // Load save /////////////////////////////////////////////////////////////////////////////////////// photo_clipboard.clear_clipboard = function clear_clipboard() { photo_clipboard.clipboard.clear(); photo_clipboard.save_clipboard(); } photo_clipboard.load_clipboard = function load_clipboard(event) { console.log("Loading photo clipboard from localstorage."); const stored = localStorage.getItem("photo_clipboard"); if (stored === null) { if (photo_clipboard.clipboard.size != 0) { photo_clipboard.clipboard = new Set(); } } else { photo_clipboard.clipboard = new Set(JSON.parse(stored)); } for (const on_load_hook of photo_clipboard.on_load_hooks) { on_load_hook(); } return photo_clipboard.clipboard; } photo_clipboard.save_clipboard = function save_clipboard() { console.log("Saving photo clipboard to localstorage."); const serialized = JSON.stringify(Array.from(photo_clipboard.clipboard)); localStorage.setItem("photo_clipboard", serialized); photo_clipboard.update_pagestate(); for (const on_save_hook of photo_clipboard.on_save_hooks) { on_save_hook(); } } // Card management ///////////////////////////////////////////////////////////////////////////////// photo_clipboard.apply_check = function apply_check(checkbox) { /* Check the checkbox if this photo ID is on the clipboard. There are two valid scenarios: 1. The checkbox is a child of a photo_card div, and that div has data-id containing the photo id. That div will receive the CSS class photo_card_selected or photo_card_unselected. This is the most common usage. 2. The checkbox has its own data-photo-id, and the parent element will be ignored. This is used only if the checkbox needs to be displayed outside of a photo card, such as on the /photo/id page where it makes no sense to put a photo card of the photo you're already looking at. */ let photo_id; let photo_card; if (checkbox.dataset.photoId) { photo_id = checkbox.dataset.photoId; } else { photo_card = checkbox.parentElement; photo_id = photo_card.dataset.id; } checkbox.checked = photo_clipboard.clipboard.has(photo_id); if (! photo_card) { return; } if (checkbox.checked) { photo_card.classList.remove("photo_card_unselected"); photo_card.classList.add("photo_card_selected"); } else { photo_card.classList.remove("photo_card_selected"); photo_card.classList.add("photo_card_unselected"); } } photo_clipboard.apply_check_all = function apply_check_all() { /* Run through all the photo cards on the page and set their checkbox to the correct value. */ const checkboxes = document.getElementsByClassName("photo_card_selector_checkbox"); for (const checkbox of checkboxes) { photo_clipboard.apply_check(checkbox); } } photo_clipboard.previous_photo_select = null; photo_clipboard.on_photo_select = function on_photo_select(event) { /* Select or unselect the clicked photo, with support for Shift-click to action everything between the previous click and this one inclusively. Those middle items will be set to the same state as the new state of the clicked item. */ const checkbox = event.target; let action; if (checkbox.checked) { action = photo_clipboard.clipboard.add.bind(photo_clipboard.clipboard); } else { action = photo_clipboard.clipboard.delete.bind(photo_clipboard.clipboard); } if (! checkbox.parentElement.classList.contains("photo_card")) { action(checkbox.dataset.photoId); } else if (event.shiftKey && photo_clipboard.previous_photo_select) { const current_photo_div = checkbox.parentElement; const previous_photo_div = photo_clipboard.previous_photo_select; const photo_divs = Array.from(current_photo_div.parentElement.getElementsByClassName("photo_card")); const current_index = photo_divs.indexOf(current_photo_div); const previous_index = photo_divs.indexOf(previous_photo_div); let slice; if (current_index == previous_index) { slice = [current_photo_div]; } else { const left = Math.min(previous_index, current_index); const right = Math.max(previous_index, current_index); slice = photo_divs.slice(left, right + 1); } for (const photo_div of slice) { action(photo_div.dataset.id); } photo_clipboard.previous_photo_select = current_photo_div; } else { const photo_div = checkbox.parentElement; action(photo_div.dataset.id); photo_clipboard.previous_photo_select = photo_div; } photo_clipboard.save_clipboard(); } photo_clipboard.select_all_photos = function select_all_photos() { const photo_divs = Array.from(document.getElementsByClassName("photo_card")); for (const photo_div of photo_divs) { photo_clipboard.clipboard.add(photo_div.dataset.id); } photo_clipboard.apply_check_all(); photo_clipboard.save_clipboard(); } photo_clipboard.unselect_all_photos = function unselect_all_photos() { const photo_divs = Array.from(document.getElementsByClassName("photo_card")); for (const photo_div of photo_divs) { photo_clipboard.clipboard.delete(photo_div.dataset.id); } photo_clipboard.apply_check_all() photo_clipboard.previous_photo_select = null; photo_clipboard.save_clipboard(); } // Tray management ///////////////////////////////////////////////////////////////////////////////// photo_clipboard.clipboard_tray_collapse = function clipboard_tray_collapse() { const tray_body = document.getElementById("clipboard_tray_body"); tray_body.classList.add("hidden"); } photo_clipboard.clipboard_tray_uncollapse = function clipboard_tray_uncollapse() { const tray_body = document.getElementById("clipboard_tray_body"); tray_body.classList.remove("hidden"); photo_clipboard.update_clipboard_tray(); } photo_clipboard.clipboard_tray_collapse_toggle = function clipboard_tray_collapse_toggle() { /* Show or hide the clipboard. */ const tray_body = document.getElementById("clipboard_tray_body"); if (!tray_body) { return; } if (tray_body.classList.contains("hidden") && photo_clipboard.clipboard.size > 0) { photo_clipboard.clipboard_tray_uncollapse(); } else { photo_clipboard.clipboard_tray_collapse(); } } photo_clipboard.ingest_toolbox_items = function ingest_toolbox_items() { /* The page may provide divs with the class "my_clipboard_tray_toolbox", and we will migrate all the elements into the real clipboard tray toolbox. */ const toolbox = document.getElementById("clipboard_tray_toolbox"); const moreboxes = document.getElementsByClassName("my_clipboard_tray_toolbox"); for (const morebox of moreboxes) { while (morebox.firstElementChild) { toolbox.appendChild(morebox.firstElementChild); } morebox.parentElement.removeChild(morebox); } } photo_clipboard.on_tray_delete_button = function on_tray_delete_button(event) { /* Remove the clicked row from the clipboard. */ const clipboard_line = event.target.parentElement; const photo_id = clipboard_line.dataset.id; photo_clipboard.clipboard.delete(photo_id); photo_clipboard.save_clipboard(); } photo_clipboard.update_clipboard_tray = function update_clipboard_tray() { /* Rebuild the rows if the tray is open. */ const clipboard_tray = document.getElementById("clipboard_tray"); if (clipboard_tray === null) { return; } if (photo_clipboard.clipboard.size == 0) { photo_clipboard.clipboard_tray_collapse(); } const tray_lines = document.getElementById("clipboard_tray_lines"); if (!clipboard_tray.classList.contains("hidden")) { common.delete_all_children(tray_lines); const photo_ids = Array.from(photo_clipboard.clipboard); photo_ids.sort(); for (const photo_id of photo_ids) { const clipboard_line = document.createElement("div"); clipboard_line.classList.add("clipboard_tray_line"); clipboard_line.dataset.id = photo_id; const clipboard_line_delete_button = document.createElement("button"); clipboard_line_delete_button.classList.add("remove_tag_button_perm"); clipboard_line_delete_button.classList.add("red_button"); clipboard_line_delete_button.onclick = photo_clipboard.on_tray_delete_button; const clipboard_line_link = document.createElement("a"); clipboard_line_link.target = "_blank"; clipboard_line_link.href = "/photo/" + photo_id; clipboard_line_link.innerText = photo_id; clipboard_line.appendChild(clipboard_line_delete_button); clipboard_line.appendChild(clipboard_line_link); tray_lines.appendChild(clipboard_line); } } } // Page and event management /////////////////////////////////////////////////////////////////////// photo_clipboard.open_full_clipboard_tab = function open_full_clipboard_tab() { window.open("/clipboard"); } photo_clipboard.update_clipboard_count = function update_clipboard_count() { const elements = document.getElementsByClassName("clipboard_count"); for (const element of elements) { element.innerText = photo_clipboard.clipboard.size; } } photo_clipboard.on_storage_event = function on_storage_event() { /* Receive storage events from other tabs and update our state to match. */ photo_clipboard.load_clipboard(); photo_clipboard.update_pagestate(); } photo_clipboard.update_pagestate = function update_pagestate() { /* Update all relevant DOM elements to match internal state. */ photo_clipboard.update_clipboard_count(); photo_clipboard.update_clipboard_tray(); photo_clipboard.apply_check_all(); } photo_clipboard.on_pageload = function on_pageload() { window.addEventListener("storage", photo_clipboard.on_storage_event, false); hotkeys.register_hotkey("ctrl a", photo_clipboard.select_all_photos, "Select all photos."); hotkeys.register_hotkey("ctrl d", photo_clipboard.unselect_all_photos, "Deselect all photos."); hotkeys.register_hotkey("c", photo_clipboard.clipboard_tray_collapse_toggle, "Toggle clipboard tray."); hotkeys.register_hotkey("shift c", photo_clipboard.open_full_clipboard_tab, "Open full clipboard page."); photo_clipboard.ingest_toolbox_items(); photo_clipboard.load_clipboard(); photo_clipboard.update_pagestate(); } document.addEventListener("DOMContentLoaded", photo_clipboard.on_pageload);