1 files changed, 160 insertions, 0 deletions
diff --git a/theme/admin/rsrc/main.js b/theme/admin/rsrc/main.js
new file mode 100644
index 0000000..842ef47
--- /dev/null
+++ b/theme/admin/rsrc/main.js
@@ -0,0 +1,160 @@
+//==============================================================================
+// Elements which contains the location of the previous and next site
+//==============================================================================
+const prev = document.getElementById("prev-site");
+const next = document.getElementById("next-site");
+
+//==============================================================================
+// Handle arrow keys and change the location to the desired direction
+//==============================================================================
+document.addEventListener("keyup", function(e) {
+	if(!e.ctrlKey && !e.shiftKey && !e.altKey) {
+		(e.keyCode === 37 && prev) && (window.location.href = prev.getAttribute("href"));
+		(e.keyCode === 39 && next) && (window.location.href = next.getAttribute("href"));
+	}
+}, false);
+
+//==============================================================================
+// Markdown tags to replace
+//==============================================================================
+const markdownTags = {
+	"bold":    ["**", "**"],
+	"italic":  ["*", "*"],
+	"heading": ["## ", "\n"],
+	"link":    ["[", "](href)"],
+	"image":   ["![", "](href)"],
+	"code":    ["\n~~~\n", "\n~~~\n"],
+	"quote":   ["\n> ", ""],
+	"list_ul": ["* ", ""],
+	"list_ol": ["1. ", ""]
+};
+
+//==============================================================================
+// Timeout function for delayed execution of code
+//==============================================================================
+function delayed(callback) {
+	window.setTimeout(callback, 20);
+}
+
+//==============================================================================
+// Set caret position in editor
+//==============================================================================
+function setCaretPosition(position) {
+	document.getElementById("content-editor").setSelectionRange(position, position);
+	document.getElementById("content-editor").focus();
+}
+
+//==============================================================================
+// Insert emoticon after cursor in editor
+//==============================================================================
+function insertEmoticon(target, emoticon) {
+	const selectionStart = target.selectionStart;
+	const selectionEnd = target.selectionEnd;
+
+	const content = target.value;
+	target.value = content.slice(0, selectionStart) + emoticon + content.slice(selectionEnd);
+
+	delayed(function() {
+		setCaretPosition(selectionStart + emoticon.length);
+	});
+}
+
+//==============================================================================
+// Insert markdown around text in editor
+//==============================================================================
+function insertMarkdown(target, markdown) {
+	const selectionStart = target.selectionStart;
+	const selectionEnd = target.selectionEnd;
+
+	const selectedText = target.value.substring(selectionStart, selectionEnd);
+
+	const content = target.value;
+	target.value = content.slice(0, selectionStart) + markdownTags[markdown][0] + selectedText + markdownTags[markdown][1] + content.slice(selectionEnd);
+
+	delayed(function() {
+		setCaretPosition(selectionStart + markdownTags[markdown][0].length + selectedText.length + markdownTags[markdown][1].length);
+	});
+}
+
+//==============================================================================
+// Keep server-side session active if the user is writing a long text
+//==============================================================================
+setInterval(function() {
+	const Request = new XMLHttpRequest();
+	Request.open("HEAD", "", true);
+	Request.send();
+}, 300000);
+
+//==============================================================================
+// Confirmation message for delete button
+//==============================================================================
+if(document.getElementById("delete-button")) {
+	document.getElementById("delete-button").onclick = function(e) {
+		return confirm(e.target.getAttribute("data-text"));
+	};
+}
+
+//==============================================================================
+// Insert or remove tab indent in editor if [<shift>+]<tab> is pressed
+//==============================================================================
+(function() {
+	if(document.getElementById("content-editor")) {
+		const element = document.getElementById("content-editor");
+		element.addEventListener("keydown", function(e) {
+			if(e.keyCode === 9 && !e.ctrlKey) {
+				const selectionStart = element.selectionStart;
+				const selectionEnd = element.selectionEnd;
+
+				const content = element.value;
+
+				if(e.shiftKey) {
+					if(content.substring(selectionStart, selectionStart -1) === "\t") {
+						element.value = content.substring(0, selectionStart - 1) + content.substring(selectionEnd);
+						setCaretPosition(selectionStart - 1);
+					}
+				}
+
+				else {
+					element.value = content.substring(0, selectionStart) + "\t" + content.substring(selectionEnd);
+					setCaretPosition(selectionStart + 1);
+				}
+
+				e.preventDefault();
+			}
+		}, false);
+	}
+})();
+
+//==============================================================================
+// Emoticon button list
+//==============================================================================
+(function() {
+	if(document.getElementById("emoticon-list")) {
+		const list = document.getElementById("emoticon-list");
+		const node = document.getElementById("content-editor");
+		const items = list.getElementsByTagName("li");
+
+		for(let i = 0; i < items.length; ++i) {
+			items[i].onmousedown = function(e) {
+				insertEmoticon(node, e.target.getAttribute("data-emoticon"));
+			};
+		}
+	}
+})();
+
+//==============================================================================
+// Markdown button list
+//==============================================================================
+(function() {
+	if(document.getElementById("markdown-list")) {
+		const list = document.getElementById("markdown-list");
+		const node = document.getElementById("content-editor");
+		const items = list.getElementsByTagName("li");
+
+		for(let i = 0; i < items.length; ++i) {
+			items[i].onmousedown = function(e) {
+				insertMarkdown(node, e.target.getAttribute("data-markdown"));
+			};
+		}
+	}
+})();