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shortcuts.js: Add declarative data-shortcut keyboard shortcuts.

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evazion
2018-08-11 16:36:25 -05:00
parent 819f6ebbba
commit d369d38419
2 changed files with 36 additions and 0 deletions
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35
app/javascript/src/javascripts/shortcuts.js
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@@ -6,6 +6,7 @@ let Shortcuts = {};
Shortcuts.initialize = function() {
Utility.keydown("s", "scroll_down", Shortcuts.nav_scroll_down);
Utility.keydown("w", "scroll_up", Shortcuts.nav_scroll_up);
Shortcuts.initialize_data_shortcuts();
Utility.keydown("q", "focus_search", function(e) {
$("#tags, #search_name, #search_name_matches, #query").trigger("focus").selectEnd();
@@ -39,6 +40,40 @@ Shortcuts.initialize = function() {
}
}
// Bind keyboard shortcuts to links that have a `data-shortcut="..."` attribute. If multiple links have the
// same shortcut, then only the first link will be triggered by the shortcut.
//
// Add `data-shortcut-when="$selector"`, where `selector` is any valid jQuery selector, to make the shortcut
// active only when the link matches the selector. For example, `data-shortcut-when=":visible"` makes the
// shortcut apply only when the link is visible.
Shortcuts.initialize_data_shortcuts = function() {
$(document).off("keydown.danbooru.shortcut");
$("[data-shortcut]").each((_i, element) => {
const id = $(element).attr("id");
const keys = $(element).attr("data-shortcut");
const namespace = `shortcut.${id}`;
const title = `Shortcut is ${keys.split(/\s+/).join(" or ")}`;
$(element).attr("title", title);
Utility.keydown(keys, namespace, event => {
const e = $(`[data-shortcut="${keys}"]`).get(0);
const condition = $(e).attr("data-shortcut-when") || "*";
if ($(e).is(condition)) {
if ($(e).is("input, textarea")) {
e.focus();
} else {
e.click();
}
event.preventDefault();
}
});
});
};
Shortcuts.nav_scroll_down = function() {
var scroll_top = $(window).scrollTop() + ($(window).height() * 0.15);
$(window).scrollTop(scroll_top);