openstreetmap-website/app/assets/javascripts/richtext.js

71 lines
2.8 KiB
JavaScript

(function () {
/*
* When the text in an edit pane is changed, clear the contents of
* the associated preview pne so that it will be regenerated when
* the user next switches to it.
*/
$(document).on("change", ".richtext_container textarea", function () {
var container = $(this).closest(".richtext_container");
var preview = container.find(".tab-pane[id$='_preview']");
preview.children(".richtext_placeholder").attr("hidden", true).removeClass("delayed-fade-in");
preview.children(".richtext").empty();
});
/*
* Install a handler to set the minimum preview pane height
* when switching away from an edit pane
*/
$(document).on("hide.bs.tab", ".richtext_container button[data-bs-target$='_edit']", function () {
var container = $(this).closest(".richtext_container");
var editor = container.find("textarea");
var preview = container.find(".tab-pane[id$='_preview']");
var minHeight = editor.outerHeight() - preview.outerHeight() + preview.height();
preview.css("min-height", minHeight + "px");
});
/*
* Install a handler to switch to preview mode
*/
$(document).on("show.bs.tab", ".richtext_container button[data-bs-target$='_preview']", function () {
var container = $(this).closest(".richtext_container");
var editor = container.find("textarea");
var preview = container.find(".tab-pane[id$='_preview']");
if (preview.children(".richtext").contents().length === 0) {
preview.children(".richtext_placeholder").removeAttr("hidden").addClass("delayed-fade-in");
preview.children(".richtext").load(editor.data("previewUrl"), { text: editor.val() }, function () {
preview.children(".richtext_placeholder").attr("hidden", true).removeClass("delayed-fade-in");
});
}
});
$(window).on("resize", updateHelp);
$(document).on("turbo:load", function () {
$(".richtext_container textarea").on("invalid", invalidTextareaListener);
updateHelp();
});
function invalidTextareaListener() {
var container = $(this).closest(".richtext_container");
container.find("button[data-bs-target$='_edit']").tab("show");
}
function updateHelp() {
$(".richtext_container .richtext_help_sidebar:not(:visible):not(:empty)").each(function () {
var container = $(this).closest(".richtext_container");
$(this).children().appendTo(container.find(".tab-pane[id$='_help']"));
});
$(".richtext_container .richtext_help_sidebar:visible:empty").each(function () {
var container = $(this).closest(".richtext_container");
container.find(".tab-pane[id$='_help']").children().appendTo($(this));
if (container.find("button[data-bs-target$='_help'].active").length) {
container.find("button[data-bs-target$='_edit']").tab("show");
}
});
}
}());